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WO2011020232A1 - Procédé et équipement de commande d'accès à une cellule - Google Patents

Procédé et équipement de commande d'accès à une cellule Download PDF

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Publication number
WO2011020232A1
WO2011020232A1 PCT/CN2009/073299 CN2009073299W WO2011020232A1 WO 2011020232 A1 WO2011020232 A1 WO 2011020232A1 CN 2009073299 W CN2009073299 W CN 2009073299W WO 2011020232 A1 WO2011020232 A1 WO 2011020232A1
Authority
WO
WIPO (PCT)
Prior art keywords
component carrier
information
downlink component
cell
forbidden
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/CN2009/073299
Other languages
English (en)
Chinese (zh)
Inventor
常俊仁
宋巍巍
李亚娟
冯淑兰
于映辉
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
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2009/073299 priority Critical patent/WO2011020232A1/fr
Priority to CN200980148674.3A priority patent/CN102246582B/zh
Publication of WO2011020232A1 publication Critical patent/WO2011020232A1/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
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal

Definitions

  • the UE User Equipment
  • the center frequency of the uplink carrier is calculated based on the fixed uplink and downlink intervals, and Random access to the detected cell based on system information.
  • the number of DL CCs (downlink component carriers) is generally higher than that of UL CCs (uplink component carriers).
  • the downlink component carrier that satisfies the uplink and downlink fixed frequency interval specified by the LTE is referred to as a backward compatible component carrier
  • the downlink component carrier that does not satisfy the uplink and downlink fixed frequency interval specified by the LTE is referred to as a non-backward compatible component carrier.
  • the UL CC calculated according to the fixed uplink and downlink intervals does not exist in the system. This will cause the UE to directly access the cell and also cause interference to UEs that legitimately use the UL CC.
  • the first solution is to transmit a synchronization signal different from the backward compatible component carrier on the non-backward compatible component carrier, so that the LTE UE cannot identify the non-backward compatible component carrier.
  • the synchronization signal is not transmitted on the non-backward compatible component carrier, so that the LTE UE cannot detect the non-backward compatible component carrier.
  • the first solution needs to design two kinds of synchronization signals for the LTE-A UE, involving a series of physical layer processing, and the complexity is large.
  • the work of non-backward compatible component carriers relies entirely on backward compatible component carriers, resulting in load imbalance between component carriers.
  • the embodiment of the invention provides a method, a device and a system for cell access control, and the technical solution is as follows:
  • a method for cell access control comprising:
  • cell selection/reselection or initial access is performed on the downlink component carrier.
  • a method for cell access control comprising:
  • a method for cell access control comprising:
  • the banned information is added to the system message of the downlink component carrier, and the added forbidden information is used to indicate the enhanced long term evolution system LTE-A user equipment UE. Whether the cell is available or whether the downlink component carrier is available;
  • a method for cell access control comprising:
  • the scheduling information of the system information of the backward compatible component carrier and the non-backward compatible component carrier is respectively scrambled by using different system information radio network temporary identifier SI-RNTI, and the scrambled scheduling information and its corresponding information are broadcasted.
  • SI-RNTI system information radio network temporary identifier
  • System information is broadcast from different frequency points or different locations to the backward compatible component carrier and the non-backward compatible component carrier, respectively.
  • a user equipment comprising:
  • the access control module is configured to perform cell selection/reselection or initial access on the downlink component carrier when the added forbidden information obtained by the forbidden information obtaining module is available.
  • a user equipment, the device comprising:
  • the system information obtaining module is configured to perform descrambling on the backward compatible component carrier and the non-backward compatible component carrier by using different SI-RNTIs, obtain scheduling information, and obtain system information corresponding to the scheduling information, or Obtaining system information from different frequency points or different locations to compatible component carriers and non-backward compatible component carriers;
  • the system information broadcast module is configured to broadcast a system message after the system information setting module is set.
  • a broadcast module configured to broadcast scheduling information scrambled by the scrambling module and corresponding system information.
  • a base station, the base station includes:
  • a setting module configured to set a backward compatible component carrier and a non-backward compatible component carrier to broadcast system information from different frequency points or different locations;
  • a broadcast module configured to broadcast system information according to the setting of the setting module.
  • the e B side adds a forbidden message, so that the user equipment UE performs cell access control according to the added forbidden information, or uses different SI-RNTIs to add/descramble the system information scheduling information, or from different frequencies. Broadcasting/receiving system information at different points or locations, performing cell access control, ensuring that the user equipment UE can work normally in the asymmetric carrier aggregation cell, and realizing a simple, compatible, and cell-connected carrier load balancing Control Method.
  • FIG. 1 is a flowchart of a method for eNB-side cell access control according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a method for UE side cell access control according to Embodiment 1 of the present invention
  • 3 is a flowchart of a method for eNB-side cell access control according to Embodiment 2 of the present invention
  • FIG. 4 is a flowchart of a method for UE side cell access control according to Embodiment 2 of the present invention.
  • FIG. 6 is a flowchart of a method for LTE-A UE cell access control according to Embodiment 4 of the present invention.
  • FIG. 7 is a flowchart of a method for UE side cell access control according to Embodiment 5 of the present invention.
  • FIG. 8 is a flowchart of a method for UE side cell access control according to Embodiment 6 of the present invention.
  • FIG. 9 is a schematic structural diagram of a user equipment according to Embodiment 9 of the present invention.
  • FIG. 10 is another schematic structural diagram of a user equipment according to Embodiment 9 of the present invention.
  • FIG. 11 is a schematic structural diagram of a base station according to Embodiment 9 of the present invention.
  • FIG. 12 is a schematic structural diagram of a user equipment according to Embodiment 10 of the present invention.
  • FIG. 13 is a schematic structural diagram of a base station according to Embodiment 10 of the present invention.
  • FIG. 14 is another schematic structural diagram of a base station according to Embodiment 10 of the present invention.
  • FIG. 15 is another schematic structural diagram of a base station according to Embodiment 10 of the present invention. detailed description
  • the carrier aggregation cell is an asymmetric carrier aggregation cell, adding the forbidden information to the system message of the downlink component carrier, where the added forbidden information is used to indicate the enhanced long term evolution system LTE-A user equipment UE, the carrier aggregation Whether the cell is available or whether the downlink component carrier is available;
  • the method includes:
  • the carrier aggregation cell is an asymmetric carrier aggregation cell, acquiring the forbidden information added in the system message of the downlink component carrier, where the added forbidden information is used to indicate the enhanced long term evolution system LTE-A user equipment UE, the carrier Whether the aggregation cell is available or whether the downlink component carrier is available;
  • the embodiment further provides a method for cell access control.
  • the method includes: broadcasting, according to a backward compatible component carrier and a non-backward compatible component carrier, system information corresponding to different frequency points or different locations respectively.
  • the method includes:
  • the process of cell access control is performed according to the cell forbidden information and the added forbidden information.
  • the following is described in detail from the eNB (Evolved Node B) side and the UE side.
  • the cell barred information of the non-backward compatible component carrier is set to be forbidden.
  • the cell barred is used to indicate whether a certain carrier of the LTE UE is available.
  • the cell barred is forbidden, the LTE is used.
  • UE can't The component carrier is used, otherwise, when the cell barred is available, the LTE UE can use the component carrier.
  • a forbidden information is added to the system message of the downlink component carrier, where the added forbidden information is used to indicate whether the LTE-AUE is available for the entire carrier aggregation cell (set to CA cell barred), or indicates a certain component of the LTE-A UE.
  • the carrier is available (set to CC barred or CC available.
  • the added forbidden information can be broadcast in SIB1.
  • the LTE-A UE reads the system information, and when it is required to determine whether the previously detected DL CC belongs to the DL CC that can be camped/initially accessible, it is determined whether the currently detected DL CC belongs to the campable/initializable connection. Enter the DL CC, if no, go to step 504, and if yes, go to step 505. Further, when it is not necessary to determine whether the DL CC belongs to the campable/initial access, step 505 is performed.
  • the DL CCs are by default all CCs that can be camped/initially accessible, so there is no need to determine whether the DL CCs are campable/initializable.
  • the LTE-A UE performs step 505 according to the indication information of the campable/initial access DL CC indicated by the DL CC, and jumps to the indicated DL CC to perform step 505; or the LTE-A UE continues to search for other DL CCs until A DL CC that can reside/can be initially accessed is searched, and then step 505 is performed.
  • the LTE-A UE performs cell selection/reselection or performs initial access.
  • the DL CC is a campable DL CC
  • cell selection/reselection is performed.
  • the initial access is performed when the DL CC is a DL CC that can be initially accessed.
  • the UE's cell access control process is as follows:
  • the LTE-A UE determines the carrier aggregation type of the current cell according to the received system information. If the asymmetric carrier aggregation is performed, the process of steps 501-505 is performed. If the symmetric carrier aggregation is performed, the LTE-A UE performs the LTE access mode according to the existing LTE access mode. Entering the cell, ie performing cell selection/reselection or initial access based on the information indicated by the cell barred. Further, in the system information of the DL CC, the current cell is broadcasted as a carrier aggregation cell, or the version type of the current system is broadcasted to determine whether the current cell is a carrier aggregation cell.
  • the cell access control process of the UE is as follows:
  • the LTE-A UE searches for a DL CC, it first determines the system type (carrier aggregation cell or LTE cell) according to the system information, and if it is a carrier aggregation cell, performs steps 500-501-505 or steps 501-505. The process, if it is an LTE cell, accesses the cell according to the existing LTE access mode, that is, performs cell selection/reselection or initial access based on the information indicated by the cell barred.
  • the system type carrier aggregation cell or LTE cell
  • the method provided in this embodiment is configured to prevent the LTE UE from using the component carrier by setting the cell forbidden information of the non-backward compatible component carrier to be forbidden, and the LTE-A UE ignores the forbidden information of the cell, according to the added forbidden information. Accessing the cell, in the case of avoiding the use of the non-backward compatible component carrier by the LTE UE, and ensuring that the LTE-AUE can normally use the non-backward compatible component carrier and the backward compatible component carrier, a simple and good compatibility is achieved.
  • a cell access control method constituting carrier load balancing.
  • the process of cell access control is performed according to the cell forbidden information and the added forbidden information.
  • the eNB side is the same as that of Embodiment 3 and will not be described again.
  • the UE side differs from Embodiment 3 in that it first determines whether the current DL CC is campable/initially accessible, and then broadcasts the added forbidden information in the DL CC that can be camped/initially accessible.
  • the LTE UE determines whether the cell forbidden information is forbidden; if the cell is disabled, the carrier is a non-backward compatible component carrier, and the LTE UE cannot use the carrier; if available, the carrier is backward compatible component carrier, and the LTE UE can Use this carrier.
  • the specific process of the LTE-A UE performing cell access control is as follows:
  • the LTE-A UE performs a cell search. When a DL CC is detected, the LTE-A UE reads system information, and determines whether the currently detected DL CC belongs to a DL CC that can be camped/initially accessible. Go to step 602. If no, go to step 603.
  • step 602 Determine, according to the added forbidden information (CA cell barred or CC barred) of the DL CC that can be currently camped/initially accessible, whether to prohibit the prohibition.
  • step 604 is performed.
  • step 605 is performed.
  • step 603 Perform the step 605 by jumping to the indicated DL CC according to the indication information of the currently detectable DL CC indication that can be camped/initially accessible to the DL CC; or the LTE-A UE continues to search for other DL CCs until the search To a DL CC that can be camped/initially accessible, then step 605 is performed.
  • the LTE-AUE continues to perform cell search.
  • 605 The LTE-A UE performs cell selection/reselection or performs initial access.
  • the DL CC is a campable DL CC
  • cell selection/reselection is performed.
  • the initial access is performed when the DL CC is a DL CC that can be initially accessed.
  • the UE's cell access control process is as follows:
  • the LTE-A UE determines the carrier aggregation type of the current cell according to the received system information. If the asymmetric carrier aggregation is performed, the process of steps 601-605 is performed. If the symmetric carrier aggregation is performed, the LTE-A UE performs the LTE access mode according to the existing LTE access mode. Entering the cell, ie performing cell selection/reselection or initial access based on the information indicated by the cell barred.
  • the cell access control process of the UE is as follows:
  • the LTE-A UE When the LTE-A UE searches for a DL CC, it first determines the system type (carrier aggregation cell or LTE cell) according to the system information, and if it is a carrier aggregation cell, performs steps 600-601-605 or steps 601-605. The process, if it is an LTE cell, accesses the cell according to the existing LTE access mode, that is, performs cell selection/reselection or initial access based on the information indicated by the cell barred.
  • the system type carrier aggregation cell or LTE cell
  • the method provided in this embodiment is configured to prevent the LTE UE from using the component carrier by setting the cell forbidden information of the non-backward compatible component carrier to be forbidden, and the LTE-A UE ignores the forbidden information of the cell, according to the added forbidden information. Accessing the cell, in the case of avoiding the use of the non-backward compatible component carrier by the LTE UE, and ensuring that the LTE-AUE can normally use the non-backward compatible component carrier and the backward compatible component carrier, a simple and good compatibility is achieved.
  • the eNB scrambles using SI-RNTI.
  • the UE uses the same SI-RNTI descrambling to acquire time-frequency location information of the received system information indicated in the PDCCH.
  • the SI-RNTI1 can be used for descrambling
  • the DL CC is a backward compatible component carrier
  • the LTE UE or the LTE-A UE acquires scheduling information of other system information, and receives other system information.
  • step 704 Read the cell forbidden information broadcasted on the current DL CC from other system information, determine whether to prohibit the access, if not (disable), go to step 705. If the access is disabled, go to step 706.
  • step 705 it may also be determined whether the current DL CC is a DL CC that can be camped/initially accessible, and if not, based on the DL CC indicated, the campable/initially accessible DL CC Instructing information to jump to the indicated DL CC to perform step 705; or continue searching for other DL CCs until a DL CC that can reside/can be initially accessed is searched, and then step 705 is performed.
  • e B may indicate in the primary system information whether the current component carrier is a backward compatible component carrier.
  • the UE determines whether the current component carrier is backward compatible based on the backward compatibility indication information in the primary system information. If yes: the SI-RNTI1 is used to decode the scheduling information of other system information, and then Obtaining corresponding system information, and then performing step 704; if not, using SI-RNTI2 to decode scheduling information of other system information, and then acquiring corresponding system information, and then performing step 704.
  • cell access control is implemented by acquiring a primary system information at different frequency points for a backward compatible component carrier and a non-backward compatible component carrier. The following is described in detail from the eNB side and the UE side, respectively.
  • the primary system information is broadcasted at the central frequency point; and for the non-backward compatible component carrier, the primary system information is broadcasted at a preset frequency point, wherein the preset frequency point may be Relative center frequency offset
  • a preset offset may specifically send a new fixed-cycle information block (or LTE-A specific system information block) to the LTE-A UE.
  • step 801 The UE determines whether the main system information can be read from the preset frequency point. If not, step 802 is performed, and if yes, step 803 is performed.
  • the current DL CC is a backward compatible component carrier, and the LTE UE or the LTE-A UE reads the cell forbidden information in the system information broadcasted on the SIB1.
  • the LTE-A UE reads the cell forbidden information in the system information broadcasted on the SIB1.
  • step 804 Determine, according to the read cell ban information, whether to ban, if yes, go to step 805. If the ban is disabled, go to step 806.
  • step 805 it may also be determined whether the current DL CC is a DL CC that can be camped/initially accessible, and if not, based on the DL CC indicated, the campable/initially accessible DL CC Instructing information to jump to the indicated DL CC to perform step 805; or continue searching for other DL CCs until a DL CC that can reside/can be initially accessed is searched, and then step 805 is performed.
  • cell access control is implemented by acquiring system information at different locations for the backward compatible component carrier and the non-backward compatible component carrier. The following is described in detail from the e B side and the UE side.
  • the primary system information is broadcasted at the central frequency point; and for the non-backward compatible component carrier, the primary system information is broadcast at the designated location, which may be the system information of the central frequency point.
  • the campable/can be based on the DL CC indication Initially accessing the indication information of the DL CC, jumping to the indicated DL CC, or continuing to search for other DL CCs until searching for a DL CC that can be camped/initially accessible, and then performing cell selection/reselection or Initial access.
  • the method provided in this embodiment the method for setting the location information of the LTE-A specific system information by using the non-backward compatible component carrier, and obtaining the forbidden information at different locations by the backward compatible component carrier and the non-backward compatible component carrier respectively
  • a simple, compatible, and component carrier load is realized.
  • the present embodiment provides a method for acquiring a backward compatible component carrier list and a non-backward compatible component carrier list, and then performing cell access control, in an idle mode, in which the LTE UE and the LTE-A UE respectively obtain.
  • the LTE UE When the LTE UE is in the idle mode, only the backward compatible component carrier information is included in the inter-frequency carrier frequency list in the system information of the DL CC that can be camped/initially accessible (preferably, in SIB5) In this way, after reading the inter-frequency carrier frequency list, the LTE UE performs measurement on the backward compatible carrier included therein, and selects an appropriate component carrier to perform component selection/re-selection.
  • the non-backward compatible component is included in the LTE-A-specific (or specified) system information block or the specific field (or specified field) of the current system information block relative to LTE. Carrier list.
  • the LTE-A UE reads the list, and the LTE-A UE measures the non-backward compatible component carrier, and selects a suitable component carrier to perform component selection/reselection.
  • the LTE UE and the LTE-A UE respectively obtain the backward compatible component carrier list and the non-backward compatible component carrier list in the idle mode, to prevent the LTE UE from using the non-backward compatible component carrier,
  • a cell access control method that is simple, compatible, and composed of carrier load balancing is implemented.
  • Example 9 Referring to FIG. 9, this embodiment provides a user equipment, where the device includes:
  • the forbidden information obtaining module 901 is configured to: when the carrier aggregation cell is an asymmetric carrier aggregation cell, acquire the forbidden information added in the system message of the downlink component carrier, where the added forbidden information is used to indicate the enhanced long term evolution system LTE. -A user equipment UE whether the carrier aggregation cell is available or whether the downlink component carrier is available;
  • the access control module 902 is configured to perform cell selection/reselection or initial access on the downlink component carrier when the added forbidden information obtained by the forbidden information obtaining module 901 is available.
  • the device further includes:
  • the forbidden information processing module 903 is configured to ignore the cell forbidden information in the system message of the downlink component carrier, where the cell forbidden information is used to indicate whether the long-term evolution system LTE user equipment UE component carrier is available.
  • the device further includes:
  • the determining module 904 is configured to determine whether the downlink component carrier is a component carrier that can be camped/initially accessible, and when the downlink component carrier is not a component carrier that can be camped/initially accessible, based on the downlink component carrier indication
  • the downlink component carrier that can be camped/initially accessible jumps to the indicated downlink component carrier that can be camped/initially accessible, and causes the forbidden information acquisition module 901 to obtain the campable/canable of the indication
  • the banned information added in the system message of the downlink component carrier that is initially accessed; or searching for other downlink component carriers other than the downlink component carrier until the downlink component carrier that can be camped/initially accessible is searched for,
  • the forbidden information obtaining module 901 acquires the forbidden information added in the system message of the searched downlink component carrier that can be camped on/initially accessible;
  • the forbidden information acquiring module 901 is caused to obtain the forbidden information added in the system message of the downlink component carrier.
  • the access control module 902 is specifically configured to:
  • the added forbidden information it is determined whether the downlink component carrier is campable/initially accessible, and if not, the downlink component of the campable/initial access indicated by the downlink component carrier And transmitting, to the indicated downlink resident component that can be camped/initially accessible, and causing the forbidden information obtaining module to obtain the added in the system message of the indicated downlink/initializable downlink component carrier Forcing the information; or searching for other downlink component carriers except the downlink component carrier, until searching for the downlink component carrier that can be camped/initially accessible, causing the forbidden information acquisition module to obtain the searchable resident The forbidden information added in the system message of the downlink component carrier that is initially/accessible;
  • access control module 902 is further used to control
  • the embodiment further provides a base station, where the base station includes:
  • the system information setting module 1001 is configured to: when the carrier aggregation cell is an asymmetric carrier aggregation cell, add the forbidden information in the system message of the downlink component carrier, where the added forbidden information is used to indicate the enhanced long term evolution system LTE-A Whether the user equipment UE is available for the carrier aggregation cell or whether the downlink component carrier is available;
  • the base station performs the cell access control according to the added forbidden information, and ensures that the LTE-A UE can work normally in the asymmetric carrier aggregation cell, thereby implementing a simple and compatible manner.
  • this embodiment provides a user equipment, where the device includes:
  • the system information obtaining module 1101 is configured to perform descrambling on the backward compatible component carrier and the non-backward compatible component carrier by using different SI-RNTIs to obtain scheduling information, and obtain system information corresponding to the scheduling information; or, Obtaining system information from different frequency points or different locations to compatible component carriers and non-backward compatible component carriers;
  • this embodiment further provides a base station, where the base station includes:
  • the system information setting module 1201 is configured to add, in the system message of the downlink component carrier, the forbidden information, where the added forbidden information is used to indicate the enhanced long term evolution system, the LTE-A user equipment, the carrier aggregation cell to which the downlink component carrier belongs. Whether it is available or whether the downlink component carrier is available;
  • the system information broadcast module 1202 is configured to broadcast the system message after the system information setting module 1201 is set.
  • this embodiment further provides a base station, where the base station includes:
  • the scrambling module 1301 is configured to perform scheduling on the scheduling information of the system information of the backward compatible component carrier and the non-backward compatible component carrier, respectively, by using different SI-RNTIs;
  • the broadcast module 1302 is configured to broadcast the scheduling information scrambled by the scrambling module 1301 and corresponding system information.
  • this embodiment further provides a base station, where the base station includes:
  • a setting module 1401 configured to set a backward compatible component carrier and a non-backward compatible component carrier to broadcast system information from different frequency points or different locations;
  • the broadcast module 1402 is configured to broadcast system information according to the setting of the setting module 1401.
  • the device and method embodiments provided in this embodiment belong to the same concept, and the implementation process thereof is described in the method embodiment. No longer.
  • the device provided in this implementation performs channel access control by using different SI-RNTIs to add/descramble scheduling information of system information, or broadcast/receive system information from different frequency points or different locations, and ensures LTE-A.
  • the UE can work normally in the asymmetric carrier aggregation cell, and implements a cell access control method that is simple, compatible, and composed of carrier load balancing.
  • a person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. In execution, the flow of an embodiment of the methods as described above may be included.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
  • ROM read-only memory
  • RAM random access memory

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Abstract

L’invention concerne un procédé et un équipement de commande d'accès à une cellule, et ils se rapportent au domaine des communications sans fil. Le procédé inclut les étapes consistant à : récupérer, lorsqu’une cellule de convergence de porteuses est une cellule de convergence de porteuses non symétriques, des informations de service restreint établies en plus dans le message système d'une porteuse de composant de liaison descendante, les informations de service restreint établies en plus étant utilisées pour indiquer à un équipement utilisateur (UE) du processus d'évolution à long terme perfectionné (LTE-A) si la cellule de convergence de porteuses est disponible ou si la porteuse de composant de liaison descendante est disponible ; et lorsque les informations de service restreint établies en plus sont disponibles, à sélectionner ou à re-sélectionner la cellule sur la porteuse de composant de liaison descendante ou à effectuer un accès initial. Dans les modes de réalisation de la présente invention, l'équipement utilisateur UE effectue une commande d'accès à la cellule en fonction des informations de service restreint établies en plus en établissant de manière supplémentaire les informations de service restreint au niveau d'un nœud B avancé (eNB), ce qui garantit ainsi que l'équipement utilisateur UE peut être utilisé normalement dans la cellule de convergence de porteuses non symétriques, et ce qui réalise le procédé de commande d'accès à la cellule avec les avantages de la simplicité, d'une excellente compatibilité et de porteuses de composants équilibrées en termes de charge.
PCT/CN2009/073299 2009-08-17 2009-08-17 Procédé et équipement de commande d'accès à une cellule Ceased WO2011020232A1 (fr)

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PCT/CN2009/073299 WO2011020232A1 (fr) 2009-08-17 2009-08-17 Procédé et équipement de commande d'accès à une cellule
CN200980148674.3A CN102246582B (zh) 2009-08-17 2009-08-17 一种小区接入控制的方法和设备

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PCT/CN2009/073299 WO2011020232A1 (fr) 2009-08-17 2009-08-17 Procédé et équipement de commande d'accès à une cellule

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US10980050B2 (en) * 2014-11-06 2021-04-13 Ntt Docomo, Inc. User terminal, radio base station and radio communication method
WO2019019140A1 (fr) 2017-07-28 2019-01-31 Oppo广东移动通信有限公司 Procédé d'envoi d'informations système, dispositif réseau et dispositif terminal
CN111801956A (zh) * 2018-03-16 2020-10-20 华为技术有限公司 通信方法和通信装置

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