WO2012094963A1 - Method and device for configuring cell information - Google Patents

Method and device for configuring cell information 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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WIPO (PCT)
Prior art keywords
user equipment
dl configuration
configuration information
tdd ul
cell
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PCT/CN2012/070066
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French (fr)
Chinese (zh)
Inventor
梁靖
李海涛
赵亚利
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大唐移动通信设备有限公司
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Priority to CN201110006898XA priority Critical patent/CN102076031A/en
Priority to CN201110006898.X priority
Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Publication of WO2012094963A1 publication Critical patent/WO2012094963A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery

Abstract

Disclosed are a method and device for configuring cell information. The method comprises: a user equipment acquiring time-division duplex (TDD) uplink (UL)/downlink (DL) configuration information transmitted by a base station device, the TDD UL configuration information being the TDD UL/DL configuration information of other cells aggregated with a main cell where the user equipment is established, or being the TDD UL/DL configuration information of a handoff target cell of the user equipment. Employment of the present invention allows the user equipment to acquire the TDD UL/DL configuration information of the cell.

Description

 A method and apparatus for configuring cell information The present application claims the priority of the following Chinese patent application:

 It was submitted to the Chinese Patent Office on January 13, 2011, and the application number is 201110006898.X. The invention is entitled "A Method and Apparatus for Configuring Cell Information". Technical field

 The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for configuring cell information. Background technique

 In the LTE (Long Term Evolution) system and the previous wireless communication system, there is only one carrier in one cell. The maximum bandwidth of the carrier in the LTE system is 20 MHz, as shown in Figure 1. In the LTE-A (Long Term Evolution-Advanced) system, the peak rate of the system is greatly improved compared to LTE, and it is required to achieve downlink lGbps and uplink 500 Mbps. If only one carrier with a maximum bandwidth of 20 MHz is used, it cannot be achieved. The above peak rate is required. Therefore, the LTE-A system needs to expand the bandwidth that the terminal can use, thereby introducing a CA (Carrier Aggregation) technology, that is, merging multiple consecutive or discontinuous carriers under the same eNB (base station). At the same time, it serves the UE (User Equipment) to provide the required rate. The above-mentioned carriers are also called CC (Component Carrier). Each cell can correspond to one member carrier, and component carriers corresponding to cells in different eNBs cannot be aggregated.

In order to ensure that the LTE UE can work under each aggregated carrier, the maximum bandwidth of each carrier is required to not exceed 20 MHz. A schematic diagram of a carrier distribution of an LTE-A cell, as shown in FIG. There are 4 carriers that can be aggregated under the base station, and the base station can perform data transmission with the UE on 4 carriers at the same time to improve system throughput. In the LTE-A system, 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. Among the multiple carriers used by the UE, the carrier of the primary carrier is an 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. In addition, 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.

 As a resource other than the primary 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. If the public configuration related to the secondary cell needs to be changed, the base station may implement the method of deleting the secondary cell and then adding it instead of modifying the public configuration. When the cell is switched, 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.

 In R8/9, 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

 Configuration mode 0 1 2 3 4 5 6 7 8 9

 Style

 0 D S U U U D S U U U

1 D S U U D D S U U D

 2 D S U D D D S U D D

3 D S U U U D D D D D

4 D S U U D D D D D D

5 D S U D D D D D D D

6 D S U U U D S U U D

Where D represents a DL subframe, U represents a UL subframe, and S represents a special subframe of the TDD system. In the R11 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. 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.

In the process of implementing the present invention, the inventors have found that at least the following problems exist in the prior art. question:

 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

 It is an object of the present invention to provide a method and apparatus for configuring cell information, so that a user equipment can acquire TDD UL/DL configuration information of a cell. To this end, 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. DRAWINGS

 1 is a schematic diagram of a carrier distribution of an LTE cell in the prior art;

 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;

 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

 For a scenario in which multiple TDD cells aggregated by a CA terminal support different UL/DL configurations, 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.

 The technical solutions in the present invention will be clearly and completely described in the following description of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As shown in FIG. 4, it is a flowchart of a method for configuring cell information in Embodiment 1 of the present invention, which includes the following steps: 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. 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.

 In the above embodiment, 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. 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. 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 PCL frequency point and the 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.

 In the foregoing embodiment, 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. In other embodiments of the present invention, 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.

 As shown in 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.

 In the above embodiment, 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:

 Table 2 Common configuration information of the secondary cell based on the single cell extension

RadioResourceConfigCommonSCell-rll:: = SEQUENCE { dl-Configuration SEQUENCE { -- 1: Cell characteristics

 dl-Bandwidth-rlO ENUMERATED {n6, nl5 n25, n50, n75, nlOO},

― 2: Physical configuration, general

 antennalnfoCommon-rlO AntennalnfoCommon, mbsfn-SubframeConfigList-r 10

 MBSFN-SubframeConfigListOPTIONAL, - Need OR

 ― 3: Physical configuration, control

 phich-Config-rlO PHICH-Config, ― 4: Physical configuration, physical channels

 pdsch-ConfigCommon-rlO

 PDSCH-ConfigCommon,

OPTIONAL, - Cond SCellAdd

 ul-Configuration CHOICE

 Release NULL,

 Setup SEQUENCE {

 ul-Freqlnfo-rlO SEQUENCE {

 ul-CarrierFreq-rlO ARFCN-ValueEUTRA OPTIONAL, - Need OP

 ul-Bandwidth-rlO ENUMERATED {n6, nl5,

 N25, n50, n75, nlOO}

OPTIONAL, - Need OP

 additionalSpectrumEmission-rlO

 AdditionalSpectrumEmission p-Max-rlO P-Max

OPTIONAL, - Need OP uplinkPowerControlCommon-r 10

 UplinkPowerControlCommonSCell-rlO,

 — A special version of IE UplinkPowerControlCommon may be introduced

 ― 3: Physical configuration, control

 soundingRS-UL-ConfigCommon-rlO

 SoundingRS-UL-ConfigCommon,

 ul-CyclicPrefixLength-rlO

 UL-CyclicPrefixLength,

 ― 4: Physical configuration, physical channels

 prach-Config

 PRACH-ConfigSCell-r 10 OPTIONAL Cond TDD-OR

 pusch-ConfigCommon-rlO

 PUSCH-ConfigCommon,

OPTIONAL, - Cond SCellAdd2 tdd-config TDD-config OPTIONAL

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. In addition to indicating the PCI, frequency, and cell index of the cells 2 and 3, 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.

 Table 3 Common configuration information of the secondary cell based on the group extension

 RRCConnectionReconfiguration-vlOxy-IEs:: = SEQUENCE { pCelllndex-rlO INTEGER (0),

 sCellToReleaseList-rlO SCellToReleaseList-rlO OPTIONAL, - Need ON

 sCellToAddModList-rlO SCellToAddModList-rlO

OPTIONAL, - Need ON

 nonCriticalExtension

 RRCConnectionReconfiguration-v 11 xy-IEs OPTIONAL RRCConnectionReconfiguration- v 11 xy-IEs :: = SEQUENCE { tddConfigGroupList SEQUENCE (SIZE

(L.maxGroup-rll)) OF TDDConfigGroup-rll

 nonCriticalExtension SEQUENCE { }

 OPTIONAL - Need OP

 }

 TDDConfigGroup-rll:: = SEQUENCE {

 Tdd-config TDD-config,

 TddCellList-rll SEQUENCE (SIZE (1.. maxTDDCell-rll)) OF ServCelllndex-r 10,

In the above embodiment, 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. In other embodiments of the present invention, 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.

 As shown in FIG. 6, 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.

 In the foregoing embodiment, 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. In the cell handover process, 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.

 In addition, 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.

 According to the method for configuring cell information provided in the foregoing embodiments, the embodiment of the present invention further provides an apparatus for applying the foregoing method for configuring cell information.

 As shown in 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.

 Specifically, 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. Correspondingly, 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.

 As shown in 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.

Specifically, 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 TDD UL/DL configuration information of the handover target cell of the device. 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. Correspondingly, 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.

 Specifically, 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.

 As shown in 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.

Specifically, 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.

 Those skilled in the art can understand that the 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.

 Through the description of the above embodiments, those skilled in the art can clearly understand that 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. Based on such understanding, 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.

 The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. The scope of protection of the invention should be considered.

Claims

Rights request
A method for configuring cell information, comprising:
 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.
 The method of claim 1, wherein the user equipment acquires TDD UL/DL configuration information sent by the base station device, including:
 The user equipment receives the system information broadcast by the base station device by using the primary cell, where the system information carries TDD UL/DL configuration information of other cells aggregated with the primary cell.
 The method of claim 2, after the user equipment receives the system information broadcast by the base station device by using the primary cell, the method further includes:
 The user equipment receives the signaling of adding the secondary cell sent by the base station device, and applies the TDD UL/DL configuration information on the cell indicated by the signaling.
 The method of claim 1, wherein the user equipment acquires TDD UL/DL configuration information sent by the base station device, including:
 Receiving, by the user equipment, a radio resource control 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 camps, Or carrying TDD UL/DL configuration information of the handover target cell of the user equipment.
 The method according to claim 4, wherein the base station device that sends the RRC connection reconfiguration message to the user equipment is the source base station of the user equipment;
 Before the source base station sends the RRC connection reconfiguration message to the user equipment, the method further includes:
 The source base station receives a handover request sent by the target base station, where the handover request carries TDD UL/DL configuration information of the handover target cell.
6. The method of claim 5, wherein the user equipment receives After the RRC connection reconfiguration message sent by the base station device, the method further includes:
 After the user equipment switches to the handover target cell, the TDD UL/DL configuration information is applied to the handover target cell.
 The method according to any one of claims 1 to 6, wherein the TDD UL/DL configuration information comprises: a cell physical identifier, a cell downlink frequency point, a cell bandwidth, and a UL/DL configuration identifier.
 The method according to any one of claims 1 to 6, wherein the TDD UL/DL configuration information comprises a plurality of groups, each group having the same TDD UL/DL configuration identifier.
 9. A user equipment, comprising:
 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.
 10. The user equipment of claim 9, wherein
 The acquiring module is specifically configured to receive system information that is broadcast by the base station device by using a primary cell, where the system information carries TDD UL/DL configuration information of other cells that are aggregated with the primary cell.
 The user equipment according to claim 10, further comprising: a receiving module, configured to receive signaling of adding a secondary cell sent by the base station device; and an application module, configured to indicate in the signaling The TDD UL/DL configuration information is applied to the cell.
 12. The user equipment of claim 9, wherein
 The acquiring module is specifically configured to receive a radio resource control RRC connection reconfiguration message sent by the base station device, where the RRC connection reconfiguration message carries TDD UL/ of other cells that are aggregated with the primary cell where the user equipment resides. DL configuration information, or TDD UL/DL configuration information of a handover target cell carrying the user equipment.
The user equipment according to claim 12, wherein the base station device that sends the RRC connection reconfiguration message to the user equipment is the source base of the user equipment Station.
 The user equipment according to claim 13, further comprising: an application module, configured to apply the TDD UL/DL configuration information on the handover target cell after handover to a handover target cell.
 The user equipment according to any one of claims 9 to 14, wherein the TDD UL/DL configuration information comprises: a cell physical identifier, a cell downlink frequency, a small area bandwidth, and a UL/DL configuration identifier.
 The user equipment according to any one of claims 9 to 14, wherein the TDD UL/DL configuration information comprises a plurality of groups, each group having the same TDD UL/DL configuration identifier.
 17. A base station device, comprising:
 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.
 18. The base station device according to claim 17, wherein:
 The sending module is specifically configured to 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.
 19. The base station device according to claim 18, wherein
 The sending module is further configured to send signaling to add the secondary cell to the user equipment.
20. The base station device according to claim 17, wherein
 The sending module is specifically configured to send a radio resource control RRC connection reconfiguration message to the user equipment, where the RRC connection reconfiguration message carries TDD UL/DL of other cells aggregated with the primary cell where the user equipment camps The configuration information, or the TDD UL/DL configuration information of the handover target cell of the user equipment.
The base station device according to claim 20, wherein the base station device that sends the RRC connection reconfiguration message to the user equipment is the source base station of the user equipment; The source base station further includes:
 And a receiving module, 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 base station device according to any one of claims 17 to 21, wherein the TDD UL/DL configuration information comprises: a cell physical identifier, a cell downlink frequency, a cell bandwidth, and a UL/DL configuration identifier.
 The base station device according to any one of claims 17 to 21, wherein the TDD UL/DL configuration information includes a plurality of groups, each group having the same TDD UL/DL configuration identifier.
PCT/CN2012/070066 2011-01-13 2012-01-05 Method and device for configuring cell information WO2012094963A1 (en)

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