WO2012094963A1 - Procédé et dispositif pour configurer l'information de cellule - Google Patents

Procédé et dispositif pour configurer l'information de cellule Download PDF

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Publication number
WO2012094963A1
WO2012094963A1 PCT/CN2012/070066 CN2012070066W WO2012094963A1 WO 2012094963 A1 WO2012094963 A1 WO 2012094963A1 CN 2012070066 W CN2012070066 W CN 2012070066W WO 2012094963 A1 WO2012094963 A1 WO 2012094963A1
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WO
WIPO (PCT)
Prior art keywords
tdd
user equipment
configuration information
cell
base station
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Application number
PCT/CN2012/070066
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English (en)
Chinese (zh)
Inventor
梁靖
李海涛
赵亚利
Original Assignee
大唐移动通信设备有限公司
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Publication of WO2012094963A1 publication Critical patent/WO2012094963A1/fr

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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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for configuring cell information. Background technique
  • the LTE-A Long Term Evolution-Advanced
  • CA Carrier Aggregation
  • UE User Equipment
  • CC Component Carrier
  • FIG. 1 A schematic diagram of a carrier distribution of an LTE-A cell, as shown in FIG.
  • the UE can simultaneously aggregate signaling scheduling and service transmission on multiple carriers.
  • the three uplink resource configurations introduced by RAN1 can be bound to an uplink carrier from the perspective of resource allocation.
  • the uplink carrier is a primary component carrier (PCC), and the bound uplink resources include a CQI (Channel Quality Indicator), a DSR (Dedicated Scheduling Request), and an upstream HARQ (Hybrid Automatic Repeat reQuest). Hybrid automatic retransmission request) feedback.
  • the carrier of the primary carrier is an SCC (Secondary Component Carrier).
  • SCC Secondary Component Carrier
  • the selection of the primary carrier is UE level, that is, all UEs in the system are not required to use the same primary carrier.
  • the uplink and downlink carriers constituting the primary carrier need to satisfy the correspondence indicated by the system information SIB2.
  • the cell in which the UE resides includes a primary cell and a secondary cell, which respectively correspond to the currently aggregated primary carrier and the secondary carrier.
  • All cells in the R10 version of the LTE-A system are backward compatible R8/9 cells, that is, each cell has downlink resources and has system information broadcast.
  • the UE can directly read the broadcast on the primary cell to obtain system information.
  • the manner of notification and change of system information is also in accordance with R8/9, and is notified to the UE by the base station by means of dedicated signaling. The UE does not need to read system information broadcast on the secondary cell.
  • the secondary cell is configured and used by the base station only in the connected state of the UE.
  • the base station usually adds a new secondary cell to the UE by using an RRC (Radio Resource Control) connection reconfiguration message, and the message includes information such as a common configuration, a dedicated configuration, and a secondary cell number associated with the secondary cell.
  • RRC Radio Resource Control
  • the base station may implement the method of deleting the secondary cell and then adding it instead of modifying the public configuration.
  • the secondary cell may be configured by the handover command.
  • the handover command includes information about the common configuration, the dedicated configuration, and the secondary cell number associated with the secondary cell. The configuration is similar to the initial mode when the secondary cell is added.
  • the physical layer standard defines seven UL/DL configuration modes, as shown in Table 1.
  • Table 1 TDD (Time-DivisionDuplex, time division duplex) UL/DL configuration mode UL/DL subframe number
  • D represents a DL subframe
  • U represents a UL subframe
  • S represents a special subframe of the TDD system.
  • multiple component carriers used by the CA terminal can belong to different frequency bands, and the home frequency band spacing may also be relatively large. Therefore, the component carriers used by the CA terminal may be combined with other systems, such as TD-SCDMA (Time Division-Synchronous). Code Division Multiple Access, time-synchronous code division multiple access radio access technology, shared frequency band or use adjacent frequency bands, as shown in Figure 3.
  • the LTE-A terminal resides in three cells: Celll, Cell2, and Cell3, where Celll and Cell2 use Bandl and Cell3 uses Band2.
  • Bandl In order to avoid uplink and downlink cross interference in the TDD system, Bandl should use the TDD UL/DL configuration mode that can coexist with the 3G TDD Band A, and Band2 should use the TDD UL/DL configuration mode that can coexist with the 3G TDD Band B. If Band A and Band B use different TDD UL/DL configuration modes, the TDD UL/DL configuration modes used by Bandl and Band2 are also different. If a terminal can occupy multiple bands and different bands can support different TDD UL/DL configuration modes, the terminal will use different transceivers for different bands.
  • the LTE RIO can only support the scenarios in which the UL/DL configuration modes of the multiple TDD cells in which the UE resides are the same. For different Bands supporting different UL/DL configuration modes, if the device still works according to the R10 mechanism, the UE cannot obtain the TDD cell.
  • the UL/DL configuration mode (mainly the secondary cell) adversely affects functions such as uplink and downlink scheduling and HARQ feedback. Summary of the invention
  • the present invention adopts the following technical solution:
  • a method for configuring cell information including:
  • the user equipment acquires time-division duplex uplink/downlink TDD UL/DL configuration information sent by the base station device, where the TDD UL/DL configuration information is TDD UL/DL configuration information of other cells that are aggregated with the primary cell where the user equipment resides. Or the TDD UL/DL configuration information of the handover target cell of the user equipment.
  • a user equipment including:
  • An acquiring module configured to acquire time-division duplex uplink/downlink TDD UL/DL configuration information sent by the base station device, where the TDD UL/DL configuration information is TDD UL/ of other cells aggregated with the primary cell where the user equipment resides DL configuration information, or TDD UL/DL configuration information of the handover target cell of the user equipment.
  • a base station device includes:
  • a sending module configured to send time division duplex uplink/downlink TDD UL/DL configuration information to the user equipment, where the TDD UL/DL configuration information is TDD UL/DL of another cell aggregated with the primary cell where the user equipment camps Configuration information, or TDD UL/DL configuration information of the handover target cell of the user equipment.
  • Embodiments of the present invention include the following advantages, because TDD UL/DL configuration information of a cell is notified to a user equipment by means of system information or dedicated signaling, so that the user equipment It can work normally on cells with different TDD UL/DL configurations, and thus is suitable for scenarios in which the UL/DL configurations of multiple TDD cells are not compatible.
  • FIG. 1 is a schematic diagram of a carrier distribution of an LTE cell in the prior art
  • FIG. 2 is a schematic diagram of carrier distribution of an LTE-A cell in the prior art
  • FIG. 3 is a schematic diagram of different UL/DL configurations used by different bands of the LTE-A CA terminal aggregation in the prior art
  • FIG. 4 is a flowchart of a method for configuring cell information according to Embodiment 1 of the present invention
  • FIG. 5 is a flowchart of a method for configuring cell information according to Embodiment 2 of the present invention
  • FIG. 6 is a flowchart of configuring cell information according to Embodiment 3 of the present invention
  • Method flow chart
  • FIG. 7 is a schematic structural diagram of user equipment in Embodiment 4 of the present invention.
  • FIG. 8 is a schematic structural diagram of a user equipment according to Embodiment 5 of the present invention.
  • FIG. 9 is a schematic structural diagram of a base station device according to Embodiment 6 of the present invention. detailed description
  • the embodiment of the present invention provides a method for configuring cell information, including: acquiring, by a user equipment, TDD UL/DL configuration information sent by a base station device, the TDD UL
  • the /DL configuration information is TDD UL/DL configuration information of other cells aggregated with the primary cell where the user equipment camps, or TDD UL/DL configuration information of the handover target cell of the user equipment.
  • Step 401 The user equipment receives system information broadcast by the base station device by using the primary cell. Specifically, by extending the system information broadcast (SIB1, SIB2, or other SIB) of each cell, the base station may broadcast TDD UL/DL configuration information of other cells under the base station to the primary cell where the user equipment resides, or may broadcast only TDD UL/DL configuration information of other cells aggregated with the primary cell. The user equipment acquires TDD UL/DL configuration information of other cells aggregated with the primary cell by receiving system information in the primary cell.
  • SIB1, SIB2, or other SIB system information broadcast
  • the TDD UL/DL configuration information may include: a cell physical identifier, a cell downlink frequency point, a cell bandwidth, and a UL/DL configuration identifier, and different UL/DL configuration identifiers may be different from the UL/DL in Table 1.
  • the configuration mode corresponds.
  • Step 402 The user equipment receives the signaling of adding the secondary cell sent by the base station device, applies the acquired TDD UL/DL configuration information to the cell indicated by the signaling, and performs data transmission and reception according to the scheduling on the added secondary cell.
  • the base station device may broadcast TDD UL/DL configuration information based on a single cell. For example, there are 3 bands (band 1 , 2, 3 ) TDD spectrum under base station 1, and cells in 3 bands use different TDD UL/DL configuration modes, that is, configuration modes 0, 1, and 2.
  • the base station 1 broadcasts TDD UL/DL configuration information of other cells to each cell.
  • the Idle UE camps on the cell 1 of the band 1, and reads the broadcast information of the cell 1, and obtains the TDD UL/DL configuration information of the cell 2 and the cell 3 under the bands 2 and 3.
  • the base station After the connection is initiated on the cell 1, the base station adds the cell 2 as a secondary carrier according to the service requirement of the UE, and indicates the PCI, frequency, and cell index of the cell 2. After receiving the command to add the secondary cell, the UE applies the received TDD UL/DL configuration information of the cell 2 on the cell 2, and performs data transmission and reception on the cell 2 according to the scheduling.
  • the base station may also broadcast TDD UL/DL configuration information based on a group, and divide the TDD UL/DL configuration information into multiple groups, each group corresponding to one or more cells, and TDD in each group.
  • the UL/DL configuration information has the same TDD UL/DL configuration identification. For example, there are 3 carriers under base station 1, where CC1 uses TDD configuration mode 0, and CC2 and CC3 use TDD configuration mode 1.
  • the base station 1 broadcasts two group information, the group1 includes the cell 1 and the TDD configuration mode 0 in the CC1, and the group 2 includes the cell 2 and the cell 3 located under the CC2 and the CC3, respectively, and the corresponding TDD configuration mode 1.
  • the Idle UE camps on the cell 1, and reads the broadcast information of the cell 1, and obtains the TDD configuration information of the cell 2 and the cell 3 under the CC 2 and the CC3.
  • the base station adds the cell 2 as a secondary carrier according to the service requirement of the UE, and indicates the PCL frequency point and the cell index of the cell 2.
  • the UE applies the received TDD UL/DL configuration information of the cell 2 on the cell 2, and performs data transmission and reception on the cell 2 according to the scheduling.
  • the base station notifies the user equipment of TDD UL/DL configuration information of other cells that are aggregated with the primary cell where the user equipment resides by means of system information.
  • the base station may also notify the user equipment of the TDD UL/DL configuration information of the cell by means of RRC dedicated signaling.
  • FIG. 5 it is a flowchart of a method for configuring cell information in Embodiment 2 of the present invention, which includes the following steps:
  • Step 501 The base station device sends signaling for adding the secondary cell to the user equipment.
  • the signaling for adding the secondary cell may be an RRC connection reconfiguration message, where the message includes common configuration information, dedicated configuration information, and a secondary cell number associated with the secondary cell, and the common configuration information includes TDD UL/DL configuration information.
  • the user equipment can obtain TDD UL/DL configuration information of other cells aggregated with the primary cell by receiving signaling of adding the secondary cell.
  • the TDD UL/DL configuration information may include: a physical identifier of the cell, a downlink frequency of the cell, a cell bandwidth, and a UL/DL configuration identifier.
  • Step 502 The user equipment applies the acquired TDD UL/DL configuration information on the received cell that adds the signaling indication of the secondary cell, and performs data transmission and reception according to the scheduling on the added secondary cell.
  • the base station device may extend the common configuration information of the secondary cell included in the signaling of the added secondary cell, add the TDD UL/DL configuration information of the secondary cell to the common configuration information, and set the TDD UL/DL based on the single cell.
  • the configuration information is notified to the user equipment.
  • the public configuration information of the extended secondary cell is shown in Table 2:
  • RadioResourceConfigCommonSCell-rll SEQUENCE ⁇ dl-Configuration SEQUENCE ⁇ -- 1: Cell characteristics
  • the base station may also add the common configuration information of the secondary cell included in the signaling of the secondary cell based on the group extension, and add the TDD UL/DL configuration information of the secondary cell to the common configuration information, that is, divide the TDD UL/DL configuration information into A plurality of groups, each group corresponding to one or more cells, and the TDD UL/DL configuration information in each group has the same TDD UL/DL configuration identifier. For example, there are 3 band (band 1 , 2, 3 ) TDD spectrums under base station 1, bandl uses TDD configuration mode 0, and band 2 and band 3 use TDD configuration mode 1. The Idle UE camps on the cell 1 of the band 1, and initiates a connection from the cell 1.
  • the base station increases the cell 2 and the cell of the band 2 according to the service requirement of the UE.
  • 3 is a secondary carrier.
  • the UE 2 and the cell 3 are notified to apply the TDD configuration mode 1 in the form of a group.
  • the UE applies the TDD configuration mode 1 on the cell 2 and the cell 3 according to the received command to increase the secondary cell, and performs data transmission and reception according to the scheduling on the cell 2 and the cell 3.
  • RRCConnectionReconfiguration-vlOxy-IEs SEQUENCE ⁇ pCelllndex-rlO INTEGER (0),
  • TDDConfigGroup-rll:: SEQUENCE ⁇
  • TddCellList-rll SEQUENCE (SIZE (1.. maxTDDCell-rll)) OF ServCelllndex-r 10,
  • the base station device notifies the user equipment of the TDD UL/DL configuration information of the cell by sending the signaling of the added secondary cell when the secondary cell is initially configured.
  • the base station may Through the cell handover process, through The manner in which the handover command is sent notifies the TDD UL/DL configuration information of the cell to the user equipment.
  • the flowchart of the method for configuring cell information in Embodiment 3 of the present invention includes the following steps:
  • Step 601 The target base station sends a handover command to the source base station.
  • Step 602 The source base station sends a handover command to the user equipment.
  • the handover command may be an RRC connection reconfiguration message, where the message includes common configuration information, dedicated configuration information, and a secondary cell number associated with the secondary cell, and the public configuration information includes TDD UL/DL configuration information.
  • the user equipment can obtain TDD UL/DL configuration information of other cells aggregated with the primary cell by receiving signaling of adding the secondary cell.
  • the TDD UL/DL configuration information may include: a cell physical identifier, a cell downlink frequency point, a cell bandwidth, and a UL/DL configuration identifier.
  • Step 603 After the user equipment switches to the handover target cell, apply TDD UL/DL configuration information acquired from the handover command on the handover target cell.
  • the target base station may notify the user equipment of the TDD UL/DL configuration information based on the single cell in the handover command, for example, the UE currently works on the cell 1-1 and the cell 1-2 under the base station 1, the base station 1 After receiving the measurement report of the UE, the UE is to be handed over to the cell 2-1 and the cell 2-2 under the base station 2.
  • Cell 2-1 and cell 2-2 are in two TDD bands with different TDD configuration modes.
  • the base station 2 transmits a handover command to the UE through the base station 1, and the handover command carries the TDD UL/DL configuration information of the cell 2-1 and the cell 2-2.
  • the UE directly works on the cell 2-1 and the cell 2-2 by applying the TDD configuration information in the handover command after the handover is completed.
  • the target base station may also notify the TDD UL/DL configuration information to the user equipment based on the group, that is, divide the TDD UL/DL configuration information into multiple groups, each group corresponding to one or more cells, and each The TDD UL/DL configuration information in the groups has the same TDD UL/DL configuration identification.
  • Embodiments of the present invention include the following advantages, because the TDD UL/DL configuration information of a cell is notified to the user equipment by means of system information or dedicated signaling, so that the user equipment can work normally on different TDD UL/DL configured cells. Thus suitable for multiple The scenario where the UL/DL configuration of the TDD cell is not the same.
  • the embodiment of the present invention further provides an apparatus for applying the foregoing method for configuring cell information.
  • FIG. 7 it is a schematic structural diagram of a user equipment in Embodiment 4 of the present invention, which includes:
  • the acquiring module 710 is configured to acquire TDD UL/DL configuration information that is sent by the base station device, where the TDD UL/DL configuration information is TDD UL/DL configuration information of other cells that are aggregated with the primary cell where the user equipment resides, or the user equipment Switch the TDD UL/DL configuration information of the target cell.
  • the acquiring module 710 may receive, by using the primary cell, system information that is broadcast by the base station device, where the system information carries TDD UL/DL configuration information of other cells that are aggregated with the primary cell where the user equipment resides.
  • the foregoing user equipment may further include: a receiving module 720, configured to receive signaling of adding a secondary cell sent by the base station device.
  • the application module 730 is configured to apply, by the receiving module 720, the TDD UL/DL configuration information acquired by the acquiring module 710 on the cell that adds the signaling indication of the secondary cell.
  • the TDD UL/DL configuration information includes: a cell physical identifier, a cell downlink frequency, a cell bandwidth, and a UL/DL configuration identifier.
  • the TDD UL/DL configuration information can be divided into multiple groups, and the TDD UL/DL configuration information in each group has the same TDD UL/DL configuration identifier.
  • FIG. 8 it is a schematic structural diagram of a user equipment in Embodiment 5 of the present invention, which includes:
  • the acquiring module 810 is configured to acquire TDD UL/DL configuration information that is sent by the base station device, where the TDD UL/DL configuration information is TDD UL/DL configuration information of other cells that are aggregated with the primary cell where the user equipment resides, or the user equipment Switch the TDD UL/DL configuration information of the target cell.
  • the acquiring module 810 may further receive an RRC connection reconfiguration message sent by the base station device, where the RRC connection reconfiguration message carries TDD UL/DL configuration information of other cells that are aggregated with the primary cell where the user equipment resides, or carries the user.
  • the base station device that sends the RRC connection reconfiguration message to the user equipment may be the source base station of the user equipment.
  • the foregoing user equipment may further include: an application module 820, configured to apply, by the user equipment, the TDD UL/DL configuration information acquired by the obtaining module 810 on the handover target cell after the handover to the handover target cell.
  • the TDD UL/DL configuration information includes: a cell physical identifier, a cell downlink frequency, a cell bandwidth, and a UL/DL configuration identifier.
  • the TDD UL/DL configuration information can be divided into multiple groups, and the TDD UL/DL configuration information in each group has the same TDD UL/DL configuration identifier.
  • the embodiment of the present invention further provides a base station device, including: a sending module, configured to send TDD UL/DL configuration information to a user equipment, where the TDD UL/DL configuration information is another cell aggregated with a primary cell where the user equipment camps The TDD UL/DL configuration information, or the TDD UL/DL configuration information of the handover target cell of the user equipment.
  • a sending module configured to send TDD UL/DL configuration information to a user equipment, where the TDD UL/DL configuration information is another cell aggregated with a primary cell where the user equipment camps The TDD UL/DL configuration information, or the TDD UL/DL configuration information of the handover target cell of the user equipment.
  • the foregoing sending module may broadcast system information to the user equipment, where the system information carries TDD UL/DL configuration information of other cells that are aggregated with the primary cell where the user equipment resides.
  • the sending module 910 is further configured to send a signal for adding the secondary cell to the user equipment.
  • the TDD UL/DL configuration information includes: a cell physical identifier, a cell downlink frequency, a cell bandwidth, and a UL/DL configuration identifier.
  • the TDD UL/DL configuration information can be divided into multiple groups, and the TDD UL/DL configuration information in each group has the same TDD UL/DL configuration identifier.
  • FIG. 9 it is a schematic structural diagram of a base station device in Embodiment 6 of the present invention, which includes:
  • the sending module 910 is configured to send TDD UL/DL configuration information to the user equipment, where the TDD UL/DL configuration information is TDD UL/DL configuration information of other cells that are aggregated with the primary cell where the user equipment resides, or handover of the user equipment. TDD UL/DL configuration information for the target cell.
  • the sending module 910 may send an RRC connection reconfiguration message to the user equipment, where the RRC connection reconfiguration message carries TDD UL/DL configuration information of other cells that are aggregated with the primary cell where the user equipment resides, or carries the user equipment. Switch target TDD UL/DL configuration information for the cell.
  • the base station device that sends the RRC connection reconfiguration message to the user equipment is the source base station of the user equipment, and the source base station may further include:
  • the receiving module 920 is configured to receive a handover request sent by the target base station, where the handover request carries TDD UL/DL configuration information of the handover target cell.
  • the TDD UL/DL configuration information includes: a cell physical identifier, a cell downlink frequency, a cell bandwidth, and a UL/DL configuration identifier.
  • the TDD UL/DL configuration information can be divided into multiple groups, and the TDD UL/DL configuration information in each group has the same TDD UL/DL configuration identifier.
  • Embodiments of the present invention include the following advantages, because the TDD UL/DL configuration information of a cell is notified to the user equipment by means of system information or dedicated signaling, so that the user equipment can work normally on different TDD UL/DL configured cells. Therefore, it is applicable to a scenario in which the UL/DL configurations of a plurality of TDD cells are not in phase.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, 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.
  • the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for making a A terminal device (which may be a cell phone, a personal computer, a server, or a network device, etc.) performs the methods described in various embodiments of the present invention.

Abstract

La présente invention concerne un procédé et un dispositif permettant de configurer l'information de cellule. Selon ce procédé, un équipement d'utilisateur acquiert l'information de configuration de liaison montante ou descendante ou "UL/DL" (UpLink/DownLink) du duplexage par répartition dans le temps ou "TDD" (Time-Division Duplex) qui a été transmise par un dispositif de station de base. Cette information de configuration d'UL/DL du TTD est alors, soit l'information de configuration d'UL/DL du TTD des autres cellules agrégées à une cellule principale où se trouve l'équipement d'utilisateur, soit l'information de configuration d'UL/DL du TTD d'une cellule cible de transfert intercellulaire de l'équipement d'utilisateur. L'emploi de la présente invention permet à l'équipement d'utilisateur d'acquérir l'information de configuration d'UL/DL du TTD de la cellule.
PCT/CN2012/070066 2011-01-13 2012-01-05 Procédé et dispositif pour configurer l'information de cellule WO2012094963A1 (fr)

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JP5869013B2 (ja) * 2014-01-31 2016-02-24 株式会社Ｎｔｔドコモ 移動局及び上りデータ送信方法
CN105981457A (zh) * 2014-06-27 2016-09-28 华为技术有限公司 一种通信方法、装置及系统
CN107295647B (zh) * 2016-03-31 2020-05-12 中国移动通信有限公司研究院 一种物理层模式配置信息配置的方法及装置
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