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WO2011009405A1 - Procédé, dispositif et système d'allocation d'id à une cellule physique (pci) - Google Patents

Procédé, dispositif et système d'allocation d'id à une cellule physique (pci) Download PDF

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Publication number
WO2011009405A1
WO2011009405A1 PCT/CN2010/075338 CN2010075338W WO2011009405A1 WO 2011009405 A1 WO2011009405 A1 WO 2011009405A1 CN 2010075338 W CN2010075338 W CN 2010075338W WO 2011009405 A1 WO2011009405 A1 WO 2011009405A1
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WO
WIPO (PCT)
Prior art keywords
pci
carrier
module
data transmission
determined
Prior art date
Application number
PCT/CN2010/075338
Other languages
English (en)
Chinese (zh)
Inventor
曲秉玉
万蕾
官磊
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2011009405A1 publication Critical patent/WO2011009405A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B

Definitions

  • Embodiments of the present invention relate to communication technologies, and in particular, to a method, device, and system for allocating a physical cell identifier PCI. Background of the invention
  • PCI Physical Cell IDs
  • the aggregate carrier technology is introduced in the LTE-A system.
  • each carrier needs to allocate one PCI regardless of whether or not data is transmitted, that is, allocate a fixed PCI to the macro base station. This method of allocation increases the amount of PCI used.
  • the home base station may be used in large quantities.
  • the macro base station allocates part of the PCI to the HeNB, and each HeNB needs to allocate one PCI for each carrier used by the UE. In this case, it will continue to increase the PCI footprint. Since the macro base station allocates to the HeNB and the available PCI is limited, in the case where the HeNB is used in a large amount, a more serious PCI collision is caused. Summary of the invention
  • the embodiments of the present invention provide a method, a device, and a system for allocating a PCI, so as to avoid the inability of the PCT to be indispensable.
  • An embodiment of the present invention provides a method for allocating a physical cell identifier PCT, including: when a UE accesses a network, determining a carrier for performing data transmission, and allocating a PCI for the determined carrier; and/or
  • PCI is allocated for the added carrier; and/or when the carrier for data transmission is reduced, the PCI of the reduced carrier is released.
  • the embodiment of the invention provides a base station, which includes:
  • a first determining module configured to determine, when the UE accesses the network, a carrier that performs data transmission, where the first allocation module is configured to allocate a PCI to the carrier determined by the first determining module;
  • a second allocation module configured to allocate PCI for the increased carrier when adding a carrier for data transmission
  • a first release module configured to release the PCI of the reduced carrier when reducing a carrier for data transmission.
  • a method, device and system for allocating PCI are provided by embodiments of the present invention. By allocating PCI only for carriers with data transmission, it avoids the situation that PCI is still occupied when the carrier is not transmitting data, so as to avoid PCI shortage caused by the shortage of available PCI. BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic diagram of allocating PCI according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of allocating PCI according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a base station according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a system according to an embodiment of the present invention. Mode for carrying out the invention
  • FIG. 1 is a schematic diagram of allocating PCI according to an embodiment of the present invention.
  • the method for allocating PCI provided in this embodiment includes:
  • Step 101 When the UE accesses the network, determine a carrier for performing data transmission, where the carrier is the carrier.
  • Step 103 When reducing the carrier for data transmission, release the PCI of the carrier.
  • This embodiment is applicable to the process of allocating PCI to component carriers in an aggregated carrier.
  • the executive body of this embodiment may be, for example, a base station.
  • FIG. 2 is a schematic diagram of allocating PCI according to an embodiment of the present invention.
  • the method for allocating PCI provided in this embodiment includes:
  • Step 201 When the UE accesses the network, determine a carrier for performing data transmission, and allocate PCI for the carrier; and/or
  • Step 202 When adding a carrier for data transmission, allocate PCI for the carrier; and/or
  • Step 203 When reducing the carrier for data transmission, release the PCI of the carrier.
  • This embodiment is applicable to the process of allocating PCI to component carriers in an aggregated carrier.
  • the executive body of this embodiment may be, for example, a base station.
  • the base station in this embodiment determines the carrier for data transmission, which is The carrier allocation PCT; when adding a carrier for data transmission, assigning a PCT to the carrier; when reducing a carrier for data transmission, releasing the PCI of the carrier, the released PCI may be allocated to other carriers of other base stations, when released When the PCI of the carrier is enabled again, it is possible to allocate different PCIs that were originally released.
  • the carrier allocation PCT when adding a carrier for data transmission, assigning a PCT to the carrier; when reducing a carrier for data transmission, releasing the PCI of the carrier, the released PCI may be allocated to other carriers of other base stations, when released When the PCI of the carrier is enabled again, it is possible to allocate different PCIs that were originally released.
  • the base station When the PCI is allocated, it may be led by the base station, for example, excluding the PCI that has been used by the neighboring base station from the candidate PCI set, selecting the PCI, and associating with the carrier for data transmission; or selecting the PCI from the candidate PCI set. And associated with the carrier for data transmission, if a PCI conflict occurs, reselect and associate until the PCI conflict does not occur; or may be dominated by the operation management and maintenance OAM system, for example, the base station sends an allocation request to the operation management and maintenance OAM system, The PCI received by the OAM system is received and associated with the carrier for data transmission. At this time, the base station only relays the PCI allocated by the OAM system.
  • the base station needs to select PCI.
  • PCI can be independently selected. For example, when the UE accesses the network, it is determined that two carriers are to be transmitted. They are assigned 0 and 2, or 2 and 8, for example, when the UE adds a carrier, the original carrier of a data transmission, PCI is 0, and now the added PCI is assigned 1 or 9 for the carrier; or choose another one with itself
  • the PCI used for the data transmission carrier is the same PCI, such as the carrier of the original data transmission or another determined carrier, the PCI is 0, and now the new carrier is also assigned 0; or the carrier with another data transmission is selected.
  • the PCI is separated by a specific value of PCI, such as the carrier of the original data transmission or another determined carrier, the PCI is 0, and now the new carrier is also assigned 0 + n, n is an arbitrary integer; or choose another data transmission with itself.
  • the carrier uses the PCI of the same group of PCI, and the 504 PCI is divided into 17 groups for every 30 groups, which are divided into another 'J is 0 - 29, 30 - 59, and 480 - 504.
  • the carrier of the original data transmission or another determined carrier PCI is 1, the PCI is in the first group, and now the new carrier is also assigned the PCI in the first group, that is, 0 - 29; or choose another
  • the PCI used for the data transmission carrier uses the same group but not the same PCI, such as the carrier of the original data transmission or another determined carrier, PCI is 1, this PCI is in the first group, now the new one
  • the wave also assigns PCTs other than 1 in the first group, ie 0, 2 - 29.
  • the PCI that has been used by the base station When the PCI that has been used by the base station is excluded, the PCI that has been detected by the UE and is used by the neighboring base station, and is deleted from the candidate PCI set, for example, the UE finds that the neighboring cell is using the PCI 3, Sending this information to the base station, after receiving the base station, it deletes 3 from its own candidate PCI set; or the base station itself installs a receiver, receives the signal transmitted by the nearby base station, and parses out the PCI, from the candidate PCI. Remove from the collection.
  • Each step in this embodiment can be used alone or in combination with other steps.
  • FIG. 3 is a schematic diagram of a base station according to an embodiment of the present invention.
  • the base station provided in this embodiment includes: a first determining module 301, configured to determine a carrier for performing data transmission when the UE accesses the network, where the first allocating module 302 is configured to allocate a PCI for the carrier determined by the first determining module; / or
  • a second allocation module 303 configured to allocate PCI for the carrier when adding a carrier for data transmission;
  • a first release module 304 configured to release the PCL of the carrier when reducing a carrier for data transmission
  • the first distribution module or the second distribution module may further include:
  • the first exclusion module 305 is configured to exclude, from the candidate PCI set, the PCI that has been used by the neighboring base station, the first selection module 306 is configured to select the PCI, and the first association module 307 is configured to use the carrier for transmitting the PCI and performing data transmission. Associated; or
  • the second selection module 308 is configured to select a PCI from the to-be-selected PCI set, and the second association module 309 is configured to associate the PCI with the carrier for performing data transmission, and the first detection module 310 is configured to detect
  • the first sending module 311 is configured to send an allocation request to the operation management and maintenance OAM system
  • the first receiving module 312 is configured to receive the PCI fed back by the OAM system
  • the third association module 313 is configured to transmit the PCI and the carrier for performing data transmission. Association.
  • the first exclusion module includes:
  • the second receiving module 314 is configured to receive, by the UE, the PCI that has been used by the neighboring base station, and the first deleting module 315 is configured to exclude the reported PCI from the candidate PCI set; or
  • the first monitoring module 316 is configured to monitor the PCI that has been used by the neighboring base station, and the second deleting module 317 is configured to exclude the monitored PCI from the candidate PCI set.
  • the first selection module or the second selection module is used for:
  • the base station in this embodiment is used to implement the embodiment shown in FIG. 1 and FIG. 2, and details are not described herein.
  • 4 is a schematic diagram of a system according to an embodiment of the present invention.
  • the system provided in this embodiment includes:
  • the OAM system 401 is configured to send, to the base station, a PCI set to be selected or a PCI to be allocated;
  • the base station 402 is configured to: when the UE accesses the network, determine a carrier for performing data transmission, allocate a PCI for the determined carrier; and/or allocate a PCI for the carrier when adding a carrier for performing data transmission; and/or reduce When the carrier of data transmission, the PCI of the above carrier is released.
  • the system provided in this embodiment of the present invention is used to allocate PCI for component carriers in an aggregate carrier. Process.
  • the base station in this embodiment is used to implement the embodiment shown in FIG. 1 and FIG. 2, and details are not described herein.
  • the present invention can be implemented by hardware, or by software plus a necessary general hardware platform.
  • the technical solution of the present invention may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including
  • a computer device which may be a personal computer, server, or network device, etc.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the embodiment, or may be correspondingly changed in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

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

Abstract

Dans ses modes de réalisation, la présente invention se rapporte à un procédé, à un dispositif et à un système d'allocation d'ID à une cellule physique (PCI). Les modes de réalisation de l'invention se rapportent au procédé, au dispositif et au système. Le procédé selon l'invention comprend les étapes suivantes : quand un EU accède à un réseau, une porteuse est déterminée pour la transmission de données et le PCI est alloué à la porteuse; et/ou quand la porteuse déterminée pour la transmission de données est augmentée, le PCI est alloué à la porteuse plus élevée; et/ou quand la porteuse déterminée pour la transmission de données est réduite, le PCI est alloué à la porteuse moins élevée. Grâce à cette allocation flexible de PCI, les modes de réalisation permettent d'économiser la quantité de PCI dans le réseau HeNB, ce qui permet de réduire le risque de collision entre des PCI et d'obtenir de plus un meilleur effet sur la randomisation des interférences.
PCT/CN2010/075338 2009-07-23 2010-07-21 Procédé, dispositif et système d'allocation d'id à une cellule physique (pci) WO2011009405A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200910108963.2A CN101965057B (zh) 2009-07-23 2009-07-23 一种分配物理小区标识pci的方法、设备和系统
CN200910108963.2 2009-07-23

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WO2011009405A1 true WO2011009405A1 (fr) 2011-01-27

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Cited By (2)

* Cited by examiner, † Cited by third party
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CN102149149A (zh) * 2011-01-31 2011-08-10 大唐移动通信设备有限公司 一种pci冲突检测方法和设备
WO2013078573A1 (fr) * 2011-12-02 2013-06-06 Telefonaktiebolaget L M Ericsson (Publ) Attribution d'une identité de cellule physique

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CN102651876A (zh) * 2011-02-24 2012-08-29 普天信息技术研究院有限公司 实现物理小区标识配置的方法及系统
US9392612B2 (en) * 2011-11-25 2016-07-12 Nec Corporation Cell identifier allocation method, base station, maintenance server, and mobile communication system
CN109831813B (zh) * 2014-08-21 2020-12-29 上海朗帛通信技术有限公司 Laa通信中的小区搜索方法和装置
CN105744632A (zh) * 2014-12-12 2016-07-06 中兴通讯股份有限公司 一种实现小区标识处理的方法及装置
CN107241735B (zh) * 2016-03-29 2020-04-14 大唐移动通信设备有限公司 一种物理小区标示的分配方法及装置

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102149149A (zh) * 2011-01-31 2011-08-10 大唐移动通信设备有限公司 一种pci冲突检测方法和设备
CN102149149B (zh) * 2011-01-31 2013-07-31 大唐移动通信设备有限公司 一种pci冲突检测方法和设备
WO2013078573A1 (fr) * 2011-12-02 2013-06-06 Telefonaktiebolaget L M Ericsson (Publ) Attribution d'une identité de cellule physique
US9264891B2 (en) 2011-12-02 2016-02-16 Telefonaktiebolaget L M Ericsson (Publ) Physical cell identity allocation

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CN101965057A (zh) 2011-02-02

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