WO2014094267A1 - Communication method and device - Google Patents

Communication method and device Download PDF

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Publication number
WO2014094267A1
WO2014094267A1 PCT/CN2012/086995 CN2012086995W WO2014094267A1 WO 2014094267 A1 WO2014094267 A1 WO 2014094267A1 CN 2012086995 W CN2012086995 W CN 2012086995W WO 2014094267 A1 WO2014094267 A1 WO 2014094267A1
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WIPO (PCT)
Prior art keywords
rate matching
matching
current
time threshold
selecting
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PCT/CN2012/086995
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French (fr)
Chinese (zh)
Inventor
钱俊进
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201280017781.4A priority Critical patent/CN103596638B/en
Priority to PCT/CN2012/086995 priority patent/WO2014094267A1/en
Publication of WO2014094267A1 publication Critical patent/WO2014094267A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0067—Rate matching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Definitions

  • the present invention relates to the field of communications, and in particular, to a communication method and apparatus. Background technique
  • a user equipment (UE) and a base station layer 2 are performed at a base station layer 3 (evolved NodeB Layer 3, eNB L3).
  • CSI-RS Channel State Information-Reference Signals
  • MIMO Multiple Input Multiple Output
  • the embodiment of the invention provides a communication method and device to solve the problem of packet loss in the above scenario.
  • an embodiment of the present invention provides a communication method, where the method includes: acquiring a number of REs, performing rate matching according to the number of REs within a first time threshold; and matching results according to the rate matching, Select the current RE number.
  • an embodiment of the present invention provides a communication method, where the method includes: performing downlink data transmission on a non-MBSFN subframe when performing MIMO mode configuration.
  • an embodiment of the present invention provides a communication device, where the device includes: a matching unit, configured to acquire a RE number, and perform rate matching according to the RE number within a first time threshold, and the rate is The matching matching result is sent to the selection unit;
  • a selecting unit configured to receive the matching result of the rate matching sent by the matching unit, According to the matching result of the rate matching, the current RE number is selected.
  • an embodiment of the present invention provides a communication apparatus, where the apparatus includes: a processing unit, configured to perform downlink data transmission on a non-MBSFN subframe when performing MIM0 mode configuration.
  • an embodiment of the present invention provides a communications apparatus, where the apparatus includes: a network interface;
  • An application physically stored in the memory including instructions operable to cause the processor and the system to perform the following process:
  • an embodiment of the present invention provides a communication device, where the device includes: a network interface;
  • An application physically stored in the memory including instructions operable to cause the processor and the system to perform the following process:
  • FIG. 1 is a schematic diagram of a transient state in a CSI-RS configuration process in an LTE system
  • FIG. 2 is a schematic diagram of a transient state in a process of switching from TM9 to TM3 in a MIM0 system
  • FIG. 3 is a flowchart of a communication method according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic diagram of a communication device according to Embodiment 2 of the present invention.
  • FIG. 5 is a schematic diagram of a communication apparatus according to Embodiment 3 of the present invention.
  • FIG. 6 is a flowchart of a communication method according to Embodiment 4 of the present invention.
  • FIG. 7 is a schematic diagram of a communication apparatus according to Embodiment 5 of the present invention.
  • FIG. 8 is a schematic diagram of a communication apparatus according to Embodiment 6 of the present invention. detailed description
  • FIG. 1 is a schematic diagram of a transient state in a CSI-RS configuration process in an LTE system.
  • the eNB L3 needs to first perform the CSI-RS configuration by using a Radio Resource Control (RRC) connection re-pairing UE, and at the eNB L3.
  • RRC Radio Resource Control
  • the CSI-RS configuration is performed on the eNB L2 through the internal message of the base station. Therefore, the UE and the eNB L2 have the timing sequence of the CSI-RS configuration.
  • the time period during which the eNB L3 feeds back the CSI-RS configuration complete message to the eNB L2 and feeds back the CSI-RS configuration complete message to the eNB L3 is a transient time period.
  • the UE is in the CSI-RS configuration, and the eNB L2 does not have the CS I-RS configuration.
  • the UE is unpacking the downlink physical shared channel (Physic).
  • the number of resource elements (Resource Element, RE) used is the number of REs deducted by the CSI-RS.
  • the eNB L2 has not yet perceived that the CS I-RS configuration is valid.
  • the number of REs used for transmitting the PDSCH packet is the number of REs without deducting the CS I-RS. Therefore, when the eNB L2 and the UE match the PDSCH rate, the number of REs used is inconsistent, which may cause the PDSCH data packet of the transient period to be correctly parsed.
  • FIG. 2 shows the TM9 to TM3 in the MIM0 system. Transient diagram during handover. As shown in FIG. 2, when the transmission mode 9 (Transmission Mode, TM9) is switched to the transmission mode 3 (Transmission Mode, TM3), the eNB L3 reconfigures the MIMO connection to the UE to configure a new MIMO mode, and the eNB L3 knows that the eNB L2 is below.
  • TM9 Transmission Mode 9
  • TM3 Transmission Mode 3
  • TM3 Transmission Mode 3
  • the downlink control information (Physical Downlink Control Channel, PDCCH) data is transmitted in the format of the downlink control information 1A (Downlink Control Inf or Matt-I, DCI-1A), the UE feeds back the MIMO mode configuration to the eNB L3, and the eNB L3 informs the eNB L2 new.
  • the MIMO mode, and the eNB L2 performs PDCCH data transmission in the DCI format corresponding to the new MIMO mode.
  • the eNB L3 informs the eNB L2 to start transmitting the PDCCH data in the DCI-1A format, and the eNB L3 informs the eNB L2 to the new one.
  • the DC I format corresponding to the MIMO mode performs PDCCH data transmission, and this period of time is called a transient time period.
  • the UE does not receive the PDCCH packet on the Multicast Broadcast Single Frequency Network (MBSFN) subframe after the TM3 is valid. If the UE is in the transient period, the base station The data is still transmitted on the MBSFN subframe, and the PDCCH packet is inevitably lost.
  • MBSFN Multicast Broadcast Single Frequency Network
  • the CSI-RS when the CSI-RS is configured in the LTE system, the number of REs is obtained, and the rate matching is performed according to the number of the REs in the first time threshold; and the current RE number is selected according to the matching result of the rate matching. . Therefore, in some configuration transient processes of LTE, the PDSCH data packet can be correctly parsed by using the correct RE number, and the data packet is not lost due to the inconsistency of the eNB and the UE.
  • downlink data is transmitted on a non-MBSFN subframe. This ensures that the data on the MBSFN subframe will not be lost during the transient process.
  • FIG. 3 is a flowchart of a communication method according to Embodiment 1 of the present invention. As shown in FIG. 3, the method includes:
  • Step 301 Acquire a RE number, and perform rate matching according to the RE number within the first time threshold. Since the time required for rate matching is an integer multiple of the TTI, and the minimum time required for rate matching is 8 TTIs, the first time threshold is a transmission time interval (Transmi ss ion time Interva l , TTI An integer multiple of ) and not less than 8 TTIs.
  • the first time threshold is a transmission time interval (Transmi ss ion time Interva l , TTI An integer multiple of ) and not less than 8 TTIs.
  • Step 302 Select a current RE number according to the matching result of the rate matching.
  • the UE acquires a first RE number that is subtracted from the channel state information reference signal CSI-RS RE, and is within the first time threshold according to the first RE The number is matched by the first rate matching; the UE determines whether the first rate matching is correct; if the matching result of the first rate matching is correct, the first RE number is selected as the current RE number, and no The first RE number deducting the CSI-RS RE number is taken as the current RE number.
  • the UE obtains no deduction of the CSI-RS.
  • the UE determining whether the second rate matching is correct; if the matching result of the second rate matching is correct, selecting the second The RE number is taken as the current RE number, otherwise, the first RE number deducting the CSI-RS RE number is selected as the current RE number.
  • the UE obtains the RE number, performs rate matching according to the RE number within the first time threshold, and selects the current RE number according to the matching result of the rate matching. Therefore, in some configuration transient processes of LTE, the correct RE number can be used to correctly parse the PDSCH data packet, and the data packet is not lost due to the inconsistency of the eNB and the UE.
  • the selecting unit 402 is configured to receive the matching result of the rate matching sent by the matching unit, and select a current RE number according to the matching result of the rate matching.
  • the matching unit 401 is specifically configured to obtain a first RE number that is deducted from the CS I-RS RE number, and perform first rate matching according to the first RE number.
  • the selecting unit 402 is specifically configured to: if the matching result of the first rate matching is correct, select the first RE number as the current RE number; otherwise, select the second RE number that does not deduct the CS I-RS RE number. As the current RE number.
  • the matching unit 401 is specifically configured to obtain a second RE number that does not deduct the CS I-RS RE number, and perform second rate matching according to the second RE number.
  • the matching unit acquires the RE number, and performs rate matching according to the RE number within the first time threshold; the selecting unit selects the current RE number according to the matching result of the rate matching. Therefore, in some configuration transient processes of LTE, the PDSCH data packet can be correctly parsed by using the correct RE number, and the data packet is not lost due to the inconsistency of the state of the eNB and the UE.
  • Network interface 501 is used to communicate with other devices.
  • the time required for performing rate matching is an integer multiple of the TTI, and the minimum time required for performing rate matching is 8 TTIs. Therefore, the first time threshold in the apparatus is a transmission time interval (Transmi). Ss ion Time Interva l , TTI) is an integer multiple, and is not less than 8 TTIs.
  • the application may be configured to enable the processor and the system to perform the acquisition of the RE number, and within the first time threshold, the instruction of performing the rate matching process according to the RE number is: acquiring the CS I-RS RE number without deducting The second RE number is matched according to the second RE number.
  • the application may be configured to: the matching result according to the rate matching, the instruction of selecting a current RE number process is: if the matching result of the second rate matching is correct, selecting the second RE number as the current RE Number, otherwise, the first RE number deducting the CS I-RS RE number is selected as the current RE number.
  • the application acquires the number of REs, performs rate matching according to the number of REs within the first time threshold, and selects the current RE number according to the matching result of the rate matching. Therefore, in some configuration transient processes of LTE, the PDSCH data packet can be correctly parsed by using the correct RE number, and the data packet is not lost due to the parsing failure of the eNB and the UE.
  • the correct parsing of the PDSCH data packet is performed by selecting the correct RE number, thereby solving the problem that the state of the eNB and the UE are inconsistent.
  • the problem that the PDSCH packet parsing failed and the packet was lost.
  • the following embodiments describe a solution and apparatus for the problem of data parsing errors due to inconsistent state of the eNB and the UE during the transient period in the TM9 to TM3 handover process in the MIM0 system.
  • FIG. 6 is a flowchart of a method for processing a transient according to Embodiment 4 of the present invention. As shown in FIG. 6, the method provided by the embodiment of the present invention includes:
  • Step 601 When the MIM0 mode is configured, the downlink data is sent on the non-MBSFN subframe.
  • the eNB when the MIM0 mode reconfiguration is performed, the eNB performs downlink data transmission on the non-MBSFN subframe, and does not perform downlink data transmission on the MBSFN subframe, so that data on the MBSFN subframe is not lost.
  • the eNB when the eNB performs the MIM0 mode configuration, the eNB performs downlink data transmission on the non-MBSFN subframe. This ensures that the data on the MBSFN subframe will not be lost during the transient process.
  • FIG. 7 is a schematic diagram of a transient processing apparatus according to Embodiment 5 of the present invention. As shown in FIG. 7, the apparatus provided by the embodiment of the present invention includes: a processing unit 701.
  • the processing unit 701 is configured to perform downlink data transmission on the non-MBSFN subframe when performing the MIM0 mode configuration.
  • the eNB when the eNB performs the MIM0 mode configuration, the eNB performs downlink data transmission on the non-MBSFN subframe. This ensures that the data on the MBSFN subframe will not be lost during the transient process.
  • FIG. 8 is a schematic diagram of a transient processing apparatus according to Embodiment 6 of the present invention.
  • the apparatus provided by the embodiment of the present invention includes: a network interface 801, a processor 802, and a memory 803.
  • System Bus 804 is used to connect network interface 801, processor 802, and memory 803.
  • Network interface 801 is used to communicate with other devices.
  • the memory 803 can be a persistent storage such as a hard disk drive and a flash memory, and the memory 803 has software modules and device drivers.
  • the software modules are capable of executing the various functional modules of the above described method of the present invention; the device drivers can be network and interface drivers.
  • downlink data is transmitted on the non-MBSFN subframe.
  • the eNB performs the MIM0 mode configuration, the eNB performs downlink data transmission on the non-MBSFN subframe. This ensures that the data on the MBSFN subframe will not be lost during the transient process.

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Abstract

The present invention relates to a communication method and device. The method comprises: during channel state information reference signal (CSI-RS) configuration in a long term evolution (LTE) system, acquiring a resource element (RE) number, and within a first time threshold value, performing rate matching according to the RE number (301); and according to a matching result of the rate matching, selecting a current RE number (302). Therefore, in some transient configuration processes of LTE, a correct RE number can be used for correctly analyzing a physical downlink shared channel (PDSCH) data packet, and the situation, where because of the states of eNB user equipment (UE) being inconsistent, analysis failure happening and thus packets being lost, will not occur. When performing multiple-input multiple-output (MIMO) mode configuration, downlink data is transmitted over a non-multicast broadcast single frequency network (MBSFN) subframe, and therefore it can ensure that the data over the MBSFN subframe will not be lost during the transient process.

Description

通信方法及装置 技术领域  Communication method and device
本发明涉及通信领域， 尤其涉及一种通信方法及装置。 背景技术  The present invention relates to the field of communications, and in particular, to a communication method and apparatus. Background technique
目前， 在长期演进 (Long Term Evolution, LTE ) ***中， 在基站层 3 ( evolved NodeB Layer3 , eNB L3 )对用户设备 ( User Equipment, UE )和 基站层 2( evolved NodeB Layer 2, eNB L2 )进行信道状态信息参考信号（ Channel State Information- Reference Signals, CSI-RS ) 配置过程中， 可能会存 在 PDSCH数据包不能被正确解析的情况， 从而导致数据包的丟失。 另外， 在 多输入多输出 (Multiple Input Multiple Output, MIMO ) ***中， 进行 MIMO 模式切换过程中也存在类似的问题。 发明内容  Currently, in a Long Term Evolution (LTE) system, a user equipment (UE) and a base station layer 2 (evolved NodeB Layer 2, eNB L2) are performed at a base station layer 3 (evolved NodeB Layer 3, eNB L3). During the configuration of the Channel State Information-Reference Signals (CSI-RS), there may be cases where the PDSCH data packet cannot be correctly parsed, resulting in loss of the data packet. In addition, in the Multiple Input Multiple Output (MIMO) system, similar problems exist in the MIMO mode switching process. Summary of the invention
本发明实施例提供了一种通信方法及装置， 以解决以上场景中数据包丟 失的问题。  The embodiment of the invention provides a communication method and device to solve the problem of packet loss in the above scenario.
在第一方面， 本发明实施例提供了一种通信方法， 所述方法包括： 获取 RE数， 在第一时间阈值内， 根据所述 RE数进行速率匹配； 根据所述速率匹配的匹配结果， 选择当前 RE数。  In a first aspect, an embodiment of the present invention provides a communication method, where the method includes: acquiring a number of REs, performing rate matching according to the number of REs within a first time threshold; and matching results according to the rate matching, Select the current RE number.
在第二方面， 本发明实施例提供了一种通信方法， 所述方法包括： 在进行 MIMO模式配置的时候，在非 MBSFN子帧上面进行下行数据的发送。 在第三方面， 本发明实施例提供了一种通信装置， 所述装置包括： 匹配单元， 用于获取 RE数， 在第一时间阈值内， 根据所述 RE数进行速 率匹配， 将所述速率匹配的匹配结果发送至选择单元；  In a second aspect, an embodiment of the present invention provides a communication method, where the method includes: performing downlink data transmission on a non-MBSFN subframe when performing MIMO mode configuration. In a third aspect, an embodiment of the present invention provides a communication device, where the device includes: a matching unit, configured to acquire a RE number, and perform rate matching according to the RE number within a first time threshold, and the rate is The matching matching result is sent to the selection unit;
选择单元， 用于接收所述匹配单元发送的所述速率匹配的匹配结果， 根 据所述速率匹配的匹配结果， 选择当前 RE数。 a selecting unit, configured to receive the matching result of the rate matching sent by the matching unit, According to the matching result of the rate matching, the current RE number is selected.
在第四方面， 本发明实施例提供了一种通信装置， 所述装置包括： 处理单元， 用于在进行 MIM0模式配置的时候， 在非 MBSFN子帧上面进行 下行数据的发送。  In a fourth aspect, an embodiment of the present invention provides a communication apparatus, where the apparatus includes: a processing unit, configured to perform downlink data transmission on a non-MBSFN subframe when performing MIM0 mode configuration.
在第五方面， 本发明实施例提供了一种通信装置， 所述装置包括： 网络接口；  In a fifth aspect, an embodiment of the present invention provides a communications apparatus, where the apparatus includes: a network interface;
处理器；  Processor
存储器；  Memory
物理存储在所述存储器中的应用程序， 所述应用程序包括可用于使所述 处理器和所述***执行以下过程的指令：  An application physically stored in the memory, the application including instructions operable to cause the processor and the system to perform the following process:
获取 RE数， 在第一时间阈值内， 根据所述 RE数进行速率匹配； 根据所述速率匹配的匹配结果， 选择当前 RE数。  Obtaining a RE number, performing rate matching according to the RE number within the first time threshold; and selecting a current RE number according to the matching result of the rate matching.
在第六方面， 本发明实施例提供了一种通信装置， 所述装置包括： 网络接口；  In a sixth aspect, an embodiment of the present invention provides a communication device, where the device includes: a network interface;
处理器；  Processor
存储器；  Memory
物理存储在所述存储器中的应用程序， 所述应用程序包括可用于使所述 处理器和所述***执行以下过程的指令：  An application physically stored in the memory, the application including instructions operable to cause the processor and the system to perform the following process:
在进行 MIM0模式配置的时候，在非 MBSFN子帧上面进行下行数据的发送。 本发明实施例中， 在 LTE***中进行 CS I -RS配置时， 获取 RE数， 在第 一时间阈值内，根据所述 RE数进行速率匹配；根据所述速率匹配的匹配结果， 选择当前 RE数。 由此实现了在 LTE的一些配置暂态过程中， 可以利用正确的 RE数对 PDSCH数据包进行正确解析，不会因为 eNB和 UE的状态不一致导致解 析失败而丟失数据包。 在进行 MIM0模式配置时， 在非 MBSFN子帧上面进行下 行数据的发送。 由此可以保证暂态过程中 MBSFN子帧上的数据不会丟失。 附图说明 图 1为 LTE***中进行 CSI-RS配置过程中的暂态示意图； When the MIM0 mode is configured, downlink data is transmitted on the non-MBSFN subframe. In the embodiment of the present invention, when the CS I-RS configuration is performed in the LTE system, the number of REs is obtained, and the rate matching is performed according to the number of REs in the first time threshold; and the current RE is selected according to the matching result of the rate matching. number. Therefore, in some configuration transient processes of LTE, the PDSCH data packet can be correctly parsed by using the correct RE number, and the data packet is not lost due to the parsing failure of the eNB and the UE. When the MIM0 mode is configured, downlink data is transmitted on the non-MBSFN subframe. This ensures that the data on the MBSFN subframe will not be lost during the transient process. DRAWINGS FIG. 1 is a schematic diagram of a transient state in a CSI-RS configuration process in an LTE system;
图 2为 MIM0***中 TM9向 TM3切换过程中的暂态示意图；  2 is a schematic diagram of a transient state in a process of switching from TM9 to TM3 in a MIM0 system;
图 3为本发明实施例一提供的通信方法流程图；  3 is a flowchart of a communication method according to Embodiment 1 of the present invention;
图 4为本发明实施例二提供的通信装置示意图；  4 is a schematic diagram of a communication device according to Embodiment 2 of the present invention;
图 5为本发明实施例三提供的通信装置示意图；  FIG. 5 is a schematic diagram of a communication apparatus according to Embodiment 3 of the present invention; FIG.
图 6为本发明实施例四提供的通信方法流程图；  6 is a flowchart of a communication method according to Embodiment 4 of the present invention;
图 7为本发明实施例五提供的通信装置示意图；  7 is a schematic diagram of a communication apparatus according to Embodiment 5 of the present invention;
图 8为本发明实施例六提供的通信装置示意图。 具体实施方式  FIG. 8 is a schematic diagram of a communication apparatus according to Embodiment 6 of the present invention. detailed description
下面通过附图和实施例， 对本发明的技术方案做进一步的详细描述。 图 1为 LTE***中进行 CSI-RS配置过程中的暂态示意图。 如图 1所示， 为了保证将 CSI-RS配置消息准确发送给 UE， eNB L3需要先通过无线资源控 制 （Rad io Resource Contro l, RRC)连接重配对 UE进行 CSI- RS配置， 并且 在 eNB L3收到 UE反馈的 CSI-RS配置完成消息后，再通过基站内部消息对 eNB L2进行 CSI-RS配置， 因此， UE和 eNB L2对 CSI-RS配置的生效存在时序上 的先后， 我们称 UE向 eNB L3反馈 CSI-RS配置完成消息到 eNB L2向 eNB L3 反馈 CSI-RS配置完成消息的时间段为暂态时间段。在暂态时间段内， 由于 UE 已经生效了 CSI-RS配置， 而 eNB L2还没有生效 CS I-RS配置， 那么 UE在进 行下行物理共享信道（Phys ica l Downl ink Share Channel , PDSCH)解包和速 率匹配的时候， 使用的资源元素 （Resource Element, RE )数是扣除 CSI-RS 占用的 RE数。 而此时 eNB L2还没有感知到 CS I-RS配置生效， 因此， 其发送 PDSCH包使用的 RE数是没有扣除 CS I-RS的 RE数。因此， eNB L2和 UE在 PDSCH 速率匹配的时候， 使用的 RE数不一致， 会导致暂态时间段的 PDSCH数据包不 能被正确解析。  The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments. FIG. 1 is a schematic diagram of a transient state in a CSI-RS configuration process in an LTE system. As shown in FIG. 1 , in order to ensure that the CSI-RS configuration message is correctly sent to the UE, the eNB L3 needs to first perform the CSI-RS configuration by using a Radio Resource Control (RRC) connection re-pairing UE, and at the eNB L3. After receiving the CSI-RS configuration completion message fed back by the UE, the CSI-RS configuration is performed on the eNB L2 through the internal message of the base station. Therefore, the UE and the eNB L2 have the timing sequence of the CSI-RS configuration. The time period during which the eNB L3 feeds back the CSI-RS configuration complete message to the eNB L2 and feeds back the CSI-RS configuration complete message to the eNB L3 is a transient time period. In the transient period, the UE is in the CSI-RS configuration, and the eNB L2 does not have the CS I-RS configuration. The UE is unpacking the downlink physical shared channel (Physic). When matching with the rate, the number of resource elements (Resource Element, RE) used is the number of REs deducted by the CSI-RS. At this time, the eNB L2 has not yet perceived that the CS I-RS configuration is valid. Therefore, the number of REs used for transmitting the PDSCH packet is the number of REs without deducting the CS I-RS. Therefore, when the eNB L2 and the UE match the PDSCH rate, the number of REs used is inconsistent, which may cause the PDSCH data packet of the transient period to be correctly parsed.
在多输入多输出 （Mul t iple Input Mul t ipl e Output , MIMO ) ***中， 进行 MIMO模式切换过程中也存在类似的问题。图 2为 MIM0***中 TM9向 TM3 切换过程中的暂态示意图。 如图 2所示， 传输模式 9 ( Transmission Mode, TM9 ) 向传输模式 3 (Transmission Mode, TM3 )切换时， eNB L3通过 RRC连 接重配给 UE配置新的 MIMO模式， 同时 eNB L3知会 eNB L2以下行控制信息 1A (Downlink Control Inf ormat ion-ΙΑ, DCI- 1A)格式发送下行物理控制信道 (Physical Downlink Control Channel, PDCCH)数据， UE向 eNB L3反馈 MIMO 模式配置完成， eNB L3知会 eNB L2新的 MIMO模式， 并且 eNB L2以新的 MIMO 模式对应的 DCI格式进行 PDCCH数据发送.其中， 从 eNB L3知会 eNB L2 以 DCI-1A格式发送 PDCCH数据开始， 到 eNB L3知会 eNB L2以新的 MIMO模式对 应的 DC I格式进行 PDCCH数据发送， 这段时间段称为暂态时间段。 在暂态时 间段内， UE 在生效 TM3 以后， 就不会在多播广播单频网络 （Multicast Broadcast Single Frequency Network, MBSFN )子帧上面接收 PDCCH数据包， 如果这段暂态时间段中， 基站仍然在 MBSFN子帧上面发送数据， 那么 PDCCH 数据包必然会丟失。 Similar problems exist in the MIMO mode switching process in a multi-input and multi-output (MIMO) system. Figure 2 shows the TM9 to TM3 in the MIM0 system. Transient diagram during handover. As shown in FIG. 2, when the transmission mode 9 (Transmission Mode, TM9) is switched to the transmission mode 3 (Transmission Mode, TM3), the eNB L3 reconfigures the MIMO connection to the UE to configure a new MIMO mode, and the eNB L3 knows that the eNB L2 is below. The downlink control information (Physical Downlink Control Channel, PDCCH) data is transmitted in the format of the downlink control information 1A (Downlink Control Inf or Matt-I, DCI-1A), the UE feeds back the MIMO mode configuration to the eNB L3, and the eNB L3 informs the eNB L2 new. The MIMO mode, and the eNB L2 performs PDCCH data transmission in the DCI format corresponding to the new MIMO mode. The eNB L3 informs the eNB L2 to start transmitting the PDCCH data in the DCI-1A format, and the eNB L3 informs the eNB L2 to the new one. The DC I format corresponding to the MIMO mode performs PDCCH data transmission, and this period of time is called a transient time period. During the transient period, the UE does not receive the PDCCH packet on the Multicast Broadcast Single Frequency Network (MBSFN) subframe after the TM3 is valid. If the UE is in the transient period, the base station The data is still transmitted on the MBSFN subframe, and the PDCCH packet is inevitably lost.
现在没有相关的方案规定在这些暂态过程中， eNB/UE如何进行数据处理， 保证数据包不会被丟失。  There is no relevant scheme to stipulate how the eNB/UE performs data processing during these transient processes to ensure that data packets are not lost.
本发明实施例中， 在 LTE***中进行 CSI-RS配置时， 获取 RE数， 在 第一时间阈值内， 根据所述 RE数进行速率匹配； 根据所述速率匹配的匹配结 果， 选择当前 RE数。 由此实现了在 LTE的一些配置暂态过程中， 可以利用 正确的 RE数对 PDSCH数据包进行正确解析， 不会因为 eNB和 UE的状态不 一致导致解析失败而丟失数据包。  In the embodiment of the present invention, when the CSI-RS is configured in the LTE system, the number of REs is obtained, and the rate matching is performed according to the number of the REs in the first time threshold; and the current RE number is selected according to the matching result of the rate matching. . Therefore, in some configuration transient processes of LTE, the PDSCH data packet can be correctly parsed by using the correct RE number, and the data packet is not lost due to the inconsistency of the eNB and the UE.
本发明实施例中， 在进行 MIMO模式配置时， 在非 MBSFN子帧上面进 行下行数据的发送。 由此可以保证暂态过程中 MBSFN子帧上的数据不会丟 失。  In the embodiment of the present invention, when MIMO mode configuration is performed, downlink data is transmitted on a non-MBSFN subframe. This ensures that the data on the MBSFN subframe will not be lost during the transient process.
图 3为本发明实施例一提供的通信方法流程图。 如图 3所示， 所述方法 包括：  FIG. 3 is a flowchart of a communication method according to Embodiment 1 of the present invention. As shown in FIG. 3, the method includes:
步骤 301,获取 RE数，在第一时间阈值内，根据所述 RE数进行速率匹配。 由于进行速率匹配所需要的时间都是 TTI 的整数倍， 并且进行速率匹配 所需要的最短时间为 8 个 TTI , 因此， 所述第一时间阈值为传输时间间隔 (Transmi s s ion Time Interva l , TTI)的整数倍, 并且不小于 8个 TTI。 Step 301: Acquire a RE number, and perform rate matching according to the RE number within the first time threshold. Since the time required for rate matching is an integer multiple of the TTI, and the minimum time required for rate matching is 8 TTIs, the first time threshold is a transmission time interval (Transmi ss ion time Interva l , TTI An integer multiple of ) and not less than 8 TTIs.
步骤 302 , 根据所述速率匹配的匹配结果， 选择当前 RE数。  Step 302: Select a current RE number according to the matching result of the rate matching.
具体地， 本发明实施例提供的方法， 在一种实现方式下， UE获取扣除信 道状态信息参考信号 CSI-RS RE数的第一 RE数， 在第一时间阈值内， 根据所 述第一 RE数进行第一速率匹配； UE判断所述第一速率匹配是否正确；如果所述 第一速率匹配的匹配结果正确， 则选择所述第一 RE数作为当前 RE数， 否贝' J , 选择没有扣除 CSI-RS RE数的第一 RE数作为当前 RE数。  Specifically, the method provided by the embodiment of the present invention, in an implementation manner, the UE acquires a first RE number that is subtracted from the channel state information reference signal CSI-RS RE, and is within the first time threshold according to the first RE The number is matched by the first rate matching; the UE determines whether the first rate matching is correct; if the matching result of the first rate matching is correct, the first RE number is selected as the current RE number, and no The first RE number deducting the CSI-RS RE number is taken as the current RE number.
本发明实施例提供的方法，在另一种实现方式下，UE获取没有扣除 CSI-RS The method provided by the embodiment of the present invention, in another implementation manner, the UE obtains no deduction of the CSI-RS.
RE数的第二 RE数， 根据所述第二 RE数进行第二速率匹配； UE判断所述第二 速率匹配是否正确； 如果所述第二速率匹配的匹配结果正确， 则选择所述第 二 RE数作为当前 RE数， 否则， 选择扣除 CSI-RS RE数的第一 RE数作为当前 RE数。 a second RE number of the RE number, performing a second rate matching according to the second RE number; the UE determining whether the second rate matching is correct; if the matching result of the second rate matching is correct, selecting the second The RE number is taken as the current RE number, otherwise, the first RE number deducting the CSI-RS RE number is selected as the current RE number.
本发明实施中， UE获取 RE数， 在第一时间阈值内， 根据所述 RE数进行 速率匹配；根据所述速率匹配的匹配结果，选择当前 RE数。由此实现了在 LTE 的一些配置暂态过程中 ,可以利用正确的 RE数对 PDSCH数据包进行正确解析， 不会因为 eNB和 UE的状态不一致导致解析失败而丟失数据包。  In the implementation of the present invention, the UE obtains the RE number, performs rate matching according to the RE number within the first time threshold, and selects the current RE number according to the matching result of the rate matching. Therefore, in some configuration transient processes of LTE, the correct RE number can be used to correctly parse the PDSCH data packet, and the data packet is not lost due to the inconsistency of the eNB and the UE.
上述实施例描述的为通信方法的工作过程， 下述实施例描述的为通信装 置的工作过程。 图 4为本发明实施例二提供的通信装置示意图。 如图 4所示， 本发明实施例提供的装置包括： 匹配单元 401和选择单元 402。  The above embodiment describes the operation of the communication method, and the following embodiment describes the operation of the communication device. FIG. 4 is a schematic diagram of a communication apparatus according to Embodiment 2 of the present invention. As shown in FIG. 4, the apparatus provided by the embodiment of the present invention includes: a matching unit 401 and a selecting unit 402.
匹配单元 401 , 用于获取 RE数， 在第一时间阈值内， 根据所述 RE数进行 速率匹配， 将所述速率匹配的匹配结果发送至选择单元。  The matching unit 401 is configured to obtain a RE number, perform rate matching according to the RE number in the first time threshold, and send the matching result of the rate matching to the selecting unit.
选择单元 402 , 用于接收所述匹配单元发送的所述速率匹配的匹配结果， 根据所述速率匹配的匹配结果， 选择当前 RE数。  The selecting unit 402 is configured to receive the matching result of the rate matching sent by the matching unit, and select a current RE number according to the matching result of the rate matching.
其中， 由于进行速率匹配所需要的时间都是 TTI 的整数倍， 并且进行速 率匹配所需要的最短时间为 8个 TTI , 因此， 所述装置中的所述第一时间阈值 为传输时间间隔（Transmi s s ion Time Interva l , TTI)的整数倍， 并且不小于 8个 TTI。 Wherein, since the time required for rate matching is an integer multiple of TTI, and the speed is fast The minimum time required for rate matching is 8 TTIs. Therefore, the first time threshold in the apparatus is an integer multiple of a transmission time interval (TTI), and is not less than 8 TTIs.
具体地， 本发明实施例提供的装置， 在一种实现方式下：  Specifically, the apparatus provided by the embodiment of the present invention, in an implementation manner:
所述匹配单元 401具体用于， 获取扣除 CS I-RS RE数的第一 RE数， 根据 所述第一 RE数进行第一速率匹配。  The matching unit 401 is specifically configured to obtain a first RE number that is deducted from the CS I-RS RE number, and perform first rate matching according to the first RE number.
所述选择单元 402 具体用于， 如果所述第一速率匹配的匹配结果正确， 则选择所述第一 RE数作为当前 RE数， 否则， 选择没有扣除 CS I-RS RE数的 第二 RE数作为当前 RE数。  The selecting unit 402 is specifically configured to: if the matching result of the first rate matching is correct, select the first RE number as the current RE number; otherwise, select the second RE number that does not deduct the CS I-RS RE number. As the current RE number.
本发明实施例提供的装置， 在另一种实现方式下：  The apparatus provided by the embodiment of the present invention, in another implementation manner:
所述匹配单元 401具体用于， 获取没有扣除 CS I-RS RE数的第二 RE数， 根据所述第二 RE数进行第二速率匹配。  The matching unit 401 is specifically configured to obtain a second RE number that does not deduct the CS I-RS RE number, and perform second rate matching according to the second RE number.
所述选择单元 402 具体用于， 如果所述第二速率匹配的匹配结果正确， 则选择所述第二 RE数作为当前 RE数， 否则， 则选择扣除 CS I-RS RE数的第 一 RE数作为当前 RE数。  The selecting unit 402 is specifically configured to: if the matching result of the second rate matching is correct, select the second RE number as the current RE number; otherwise, select the first RE number that deducts the CS I-RS RE number. As the current RE number.
本发明实施中， 匹配单元获取 RE数， 在第一时间阈值内， 根据所述 RE 数进行速率匹配； 选择单元根据所述速率匹配的匹配结果， 选择当前 RE数。 由此实现了在 LTE的一些配置暂态过程中， 可以利用正确的 RE数对 PDSCH数 据包进行正确解析， 不会因为 eNB和 UE的状态不一致导致解析失败而丟失数 据包。  In the implementation of the present invention, the matching unit acquires the RE number, and performs rate matching according to the RE number within the first time threshold; the selecting unit selects the current RE number according to the matching result of the rate matching. Therefore, in some configuration transient processes of LTE, the PDSCH data packet can be correctly parsed by using the correct RE number, and the data packet is not lost due to the inconsistency of the state of the eNB and the UE.
上述实施例描述的为通信装置的工作过程， 下述实施例描述的为另一种 通信装置的工作过程。 图 5为本发明实施例三提供的通信装置示意图。 如图 5 所示， 本发明实施例提供的装置包括： 网络接口 501、 处理器 502 和存储器 503。 ***总线 504用于连接网络接口 501、 处理器 502和存储器 503。  The above embodiment describes the operation of the communication device, and the following embodiment describes the operation of another communication device. FIG. 5 is a schematic diagram of a communication apparatus according to Embodiment 3 of the present invention. As shown in FIG. 5, the apparatus provided by the embodiment of the present invention includes: a network interface 501, a processor 502, and a memory 503. System bus 504 is used to connect network interface 501, processor 502, and memory 503.
网络接口 501用于与其他设备通信。  Network interface 501 is used to communicate with other devices.
存储器 503可以是永久存储器，例如硬盘驱动器和闪存，存储器 503中具 有软件模块和设备驱动程序。 软件模块能够执行本发明上述方法的各种功能 模块； 设备驱动程序可以是网络和接口驱动程序。 The memory 503 may be a persistent storage such as a hard disk drive and a flash memory, and the memory 503 has There are software modules and device drivers. The software modules are capable of performing the various functional modules of the above described method of the present invention; the device drivers can be network and interface drivers.
在启动时，这些软件组件被加载到存储器 503中，然后被处理器 502访问 并执行如下指令：  At startup, these software components are loaded into memory 503, then accessed by processor 502 and executed as follows:
获取 RE数， 在第一时间阈值内， 根据所述 RE数进行速率匹配； 根据所述速率匹配的匹配结果， 选择当前 RE数。  Obtaining a RE number, performing rate matching according to the RE number within the first time threshold; and selecting a current RE number according to the matching result of the rate matching.
其中， 由于进行速率匹配所需要的时间都是 TTI 的整数倍， 并且进行速 率匹配所需要的最短时间为 8个 TTI , 因此， 所述装置中的所述第一时间阈值 为传输时间间隔（Transmi s s ion Time Interva l , TTI)的整数倍， 并且不小于 8个 TTI。  The time required for performing rate matching is an integer multiple of the TTI, and the minimum time required for performing rate matching is 8 TTIs. Therefore, the first time threshold in the apparatus is a transmission time interval (Transmi). Ss ion Time Interva l , TTI) is an integer multiple, and is not less than 8 TTIs.
具体地， 本发明实施例提供的装置， 在一种实现方式下：  Specifically, the apparatus provided by the embodiment of the present invention, in an implementation manner:
所述应用程序可用于使所述处理器和所述***执行获取 RE数， 在第一时 间阈值内， 根据所述 RE数进行速率匹配过程的指令为： 获取扣除 CS I-RS RE 数的第一 RE数， 在第一时间阈值内， 根据所述第一 RE数进行第一速率匹配。  The application may be configured to cause the processor and the system to perform the acquisition of the RE number, and within the first time threshold, the instruction for performing the rate matching process according to the RE number is: acquiring the number of the CS I-RS RE number A RE number, within the first time threshold, performing a first rate matching according to the first RE number.
所述应用程序可用于使所述根据所述速率匹配的匹配结果， 选择当前 RE 数过程的指令为： 如果所述第一速率匹配的匹配结果正确， 则选择所述第一 RE数作为当前 RE数， 否则， 选择没有扣除 CS I-RS RE数的第二 RE数作为当 前 RE数。  The application may be configured to: the matching the result according to the rate matching, the instruction of selecting the current RE number process is: if the matching result of the first rate matching is correct, selecting the first RE number as the current RE Number, otherwise, the second RE number without deducting the CS I-RS RE number is selected as the current RE number.
本发明实施例提供的装置， 在另一种实现方式下：  The apparatus provided by the embodiment of the present invention, in another implementation manner:
所述应用程序可用于使所述处理器和所述***执行获取 RE数， 在第一时 间阈值内，根据所述 RE数进行速率匹配过程的指令为： 获取没有扣除 CS I-RS RE数的第二 RE数， 根据所述第二 RE数进行第二速率匹配。  The application may be configured to enable the processor and the system to perform the acquisition of the RE number, and within the first time threshold, the instruction of performing the rate matching process according to the RE number is: acquiring the CS I-RS RE number without deducting The second RE number is matched according to the second RE number.
所述应用程序可用于使所述根据所述速率匹配的匹配结果， 选择当前 RE 数过程的指令为： 如果所述第二速率匹配的匹配结果正确， 则选择所述第二 RE数作为当前 RE数， 否则， 选择扣除 CS I-RS RE数的第一 RE数作为当前 RE 数。 本发明实施中， 应用程序获取 RE数， 在第一时间阈值内， 根据所述 RE 数进行速率匹配； 根据所述速率匹配的匹配结果， 选择当前 RE数。 由此实现 了在 LTE的一些配置暂态过程中， 可以利用正确的 RE数对 PDSCH数据包进行 正确解析， 不会因为 eNB和 UE的状态不一致导致解析失败而丟失数据包。 The application may be configured to: the matching result according to the rate matching, the instruction of selecting a current RE number process is: if the matching result of the second rate matching is correct, selecting the second RE number as the current RE Number, otherwise, the first RE number deducting the CS I-RS RE number is selected as the current RE number. In the implementation of the present invention, the application acquires the number of REs, performs rate matching according to the number of REs within the first time threshold, and selects the current RE number according to the matching result of the rate matching. Therefore, in some configuration transient processes of LTE, the PDSCH data packet can be correctly parsed by using the correct RE number, and the data packet is not lost due to the parsing failure of the eNB and the UE.
上述几个实施例描述的为 LTE***中， 在 CS I-RS配置过程中的暂态时 段内， 通过选择正确的 RE数进行 PDSCH数据包的正确解析， 从而解决了因 为 eNB和 UE的状态不一致导致 PDSCH数据包解析失败而丟失数据包的问题。 下述几个实施例描述的为 MIM0***中 TM9向 TM3切换过程中的暂态时段内， 由于 eNB和 UE的状态不一致导致数据解析错误的问题的解决方法及装置。  In the foregoing LTE system, in the transient period in the CS I-RS configuration process, the correct parsing of the PDSCH data packet is performed by selecting the correct RE number, thereby solving the problem that the state of the eNB and the UE are inconsistent. The problem that the PDSCH packet parsing failed and the packet was lost. The following embodiments describe a solution and apparatus for the problem of data parsing errors due to inconsistent state of the eNB and the UE during the transient period in the TM9 to TM3 handover process in the MIM0 system.
图 6为本发明实施例四提供的暂态的处理方法流程图。 如图 6所示， 本 发明实施例提供的方法包括：  FIG. 6 is a flowchart of a method for processing a transient according to Embodiment 4 of the present invention. As shown in FIG. 6, the method provided by the embodiment of the present invention includes:
步骤 601 , 在进行 MIM0模式配置的时候， 在非 MBSFN子帧上面进行下行 数据的发送。  Step 601: When the MIM0 mode is configured, the downlink data is sent on the non-MBSFN subframe.
具体地， eNB在进行 MIM0模式重配的时候， 在非 MBSFN子帧上面进行下 行数据的发送， 在 MBSFN子帧上面不进行下行数据的发送， 可以保证 MBSFN 子帧上的数据不会丟失。  Specifically, when the MIM0 mode reconfiguration is performed, the eNB performs downlink data transmission on the non-MBSFN subframe, and does not perform downlink data transmission on the MBSFN subframe, so that data on the MBSFN subframe is not lost.
本发明实施例中， eNB在进行 MIM0模式配置时， 在非 MBSFN子帧上面进 行下行数据的发送。 由此可以保证暂态过程中 MBSFN子帧上的数据不会丟失。  In the embodiment of the present invention, when the eNB performs the MIM0 mode configuration, the eNB performs downlink data transmission on the non-MBSFN subframe. This ensures that the data on the MBSFN subframe will not be lost during the transient process.
图 7为本发明实施例五提供的暂态的处理装置示意图。 如图 7所示， 本 发明实施例提供的装置包括： 处理单元 701。  FIG. 7 is a schematic diagram of a transient processing apparatus according to Embodiment 5 of the present invention. As shown in FIG. 7, the apparatus provided by the embodiment of the present invention includes: a processing unit 701.
处理单元 701 , 用于在进行 MIM0模式配置时， 在非 MBSFN子帧上面进行 下行数据的发送。  The processing unit 701 is configured to perform downlink data transmission on the non-MBSFN subframe when performing the MIM0 mode configuration.
本发明实施例中， eNB在进行 MIM0模式配置时， 在非 MBSFN子帧上面进 行下行数据的发送。 由此可以保证暂态过程中 MBSFN子帧上的数据不会丟失。  In the embodiment of the present invention, when the eNB performs the MIM0 mode configuration, the eNB performs downlink data transmission on the non-MBSFN subframe. This ensures that the data on the MBSFN subframe will not be lost during the transient process.
图 8为本发明实施例六提供的暂态的处理装置示意图。 如图 8所示， 本 发明实施例提供的装置包括： 网络接口 801、 处理器 802和存储器 803。 *** 总线 804用于连接网络接口 801、 处理器 802和存储器 803。 FIG. 8 is a schematic diagram of a transient processing apparatus according to Embodiment 6 of the present invention. As shown in FIG. 8, the apparatus provided by the embodiment of the present invention includes: a network interface 801, a processor 802, and a memory 803. System Bus 804 is used to connect network interface 801, processor 802, and memory 803.
网络接口 801用于与其他设备通信。  Network interface 801 is used to communicate with other devices.
存储器 803可以是永久存储器，例如硬盘驱动器和闪存，存储器 803中具 有软件模块和设备驱动程序。 软件模块能够执行本发明上述方法的各种功能 模块； 设备驱动程序可以是网络和接口驱动程序。  The memory 803 can be a persistent storage such as a hard disk drive and a flash memory, and the memory 803 has software modules and device drivers. The software modules are capable of executing the various functional modules of the above described method of the present invention; the device drivers can be network and interface drivers.
在启动时，这些软件组件被加载到存储器 803中，然后被处理器 802访问 并执行如下指令：  At startup, these software components are loaded into memory 803, then accessed by processor 802 and executed as follows:
在进行 MIM0模式配置时， 在非 MBSFN子帧上面进行下行数据的发送。 本发明实施例中， eNB在进行 MIM0模式配置时， 在非 MBSFN子帧上面进 行下行数据的发送。 由此可以保证暂态过程中 MBSFN子帧上的数据不会丟失。  When MIM0 mode is configured, downlink data is transmitted on the non-MBSFN subframe. In the embodiment of the present invention, when the eNB performs the MIM0 mode configuration, the eNB performs downlink data transmission on the non-MBSFN subframe. This ensures that the data on the MBSFN subframe will not be lost during the transient process.
专业人员应该还可以进一步意识到， 结合本文中所公开的实施例描述的 各示例的单元及算法步骤， 能够以电子硬件、 计算机软件或者二者的结合来 实现， 为了清楚地说明硬件和软件的可互换性， 在上述说明中已经按照功能 一般性地描述了各示例的组成及步骤。 这些功能究竟以硬件还是软件方式来 执行， 取决于技术方案的特定应用和设计约束条件。 专业技术人员可以对每 个特定的应用来使用不同装置来实现所描述的功能， 但是这种实现不应认为 超出本发明的范围。  A person skilled in the art should further appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different means for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
结合本文中所公开的实施例描述的装置或算法的步骤可以用硬件、 处理 器执行的软件模块， 或者二者的结合来实施。 软件模块可以置于随机存储器 ( RAM ) 、 内存、 只读存储器（ROM ) 、 电可编程 R0M、 电可擦除可编程 R0M、 寄存器、 硬盘、 可移动磁盘、 CD-R0M、 或技术领域内所公知的任意其它形式 的存储介质中。  The steps of a device or algorithm described in connection with the embodiments disclosed herein may be implemented in hardware, a software module executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field Any other form of storage medium known.
以上所述的具体实施方式， 对本发明的目的、 技术方案和有益效果进行 了进一步详细说明， 所应理解的是， 以上所述仅为本发明的具体实施方式而 已， 并不用于限定本发明的保护范围， 凡在本发明的精神和原则之内， 所做 的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。  The above described embodiments of the present invention are further described in detail, and the embodiments of the present invention are intended to be illustrative only. The scope of the protection, any modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

权 利 要 求 书 Claim
1. 一种通信方法， 其特征在于， 所述方法包括：  A communication method, the method comprising:
获取 RE数， 在第一时间阈值内， 根据所述 RE数进行速率匹配； 根据所述速率匹配的匹配结果， 选择当前 RE数。  Obtaining a RE number, performing rate matching according to the RE number within the first time threshold; and selecting a current RE number according to the matching result of the rate matching.
2. 如权利要求 1所述的通信方法， 其特征在于，  2. The communication method according to claim 1, wherein
所述获取 RE数， 在第一时间阈值内， 根据所述 RE数进行速率匹配包括： 获取扣除信道状态信息参考信号 CS I-RS RE数的第一 RE数， 在第一时间阈值 内， 根据所述第一 RE数进行第一速率匹配；  The obtaining the number of REs, and performing rate matching according to the number of REs in the first time threshold includes: acquiring a first RE number that is subtracted from the channel state information reference signal CS I-RS RE, within the first time threshold, according to The first RE number performs a first rate matching;
所述根据所述速率匹配的匹配结果， 选择当前 RE数具体包括： 如果所述 第一速率匹配的匹配结果正确， 则选择所述第一 RE数作为当前 RE数， 否贝' J , 选择没有扣除 CS I-RS RE数的第二 RE数作为当前 RE数。  The selecting the current RE number according to the matching result of the rate matching specifically includes: if the matching result of the first rate matching is correct, selecting the first RE number as the current RE number, no shell 'J, selecting no The second RE number deducting the CS I-RS RE number is taken as the current RE number.
3. 如权利要求 1所述通信方法， 其特征在于，  3. The communication method according to claim 1, wherein
所述获取 RE数， 在第一时间阈值内， 根据所述 RE数进行速率匹配包括： 获取没有扣除 CS I-RS RE数的第二 RE数， 根据所述第二 RE数进行第二速率 匹配；  The obtaining the number of REs, the rate matching according to the number of REs in the first time threshold includes: acquiring a second RE number that does not deduct the number of CS I-RS REs, and performing second rate matching according to the second RE number ;
所述根据所述速率匹配的匹配结果， 选择当前 RE数具体包括： 如果所述 第二速率匹配的匹配结果正确， 则选择所述第二 RE数作为当前 RE数， 否贝' J , 选择扣除 CS I-RS RE数的第一 RE数作为当前 RE数。  The selecting the current RE number according to the matching result of the rate matching specifically includes: if the matching result of the second rate matching is correct, selecting the second RE number as the current RE number, or not, and selecting deduction The first RE number of the CS I-RS RE number is taken as the current RE number.
4. 如权利要求 1至 3任一项所述的通信方法， 其特征在于， 所述第一时 间阈值为传输时间间隔 TTI的整数倍，并且所述第一时间阈值不小于 8个 TTI。  The communication method according to any one of claims 1 to 3, wherein the first time threshold is an integer multiple of a transmission time interval TTI, and the first time threshold is not less than 8 TTIs.
5. —种通信方法， 其特征在于， 在进行多输入多输出 ΜΙΜ0模式重配的 时候， 在非多播广播单频网络 MBSFN子帧上面进行下行数据的发送。  A communication method characterized in that downlink data is transmitted on a non-multicast broadcast single frequency network MBSFN subframe when multi-input multiple-output ΜΙΜ0 mode reconfiguration is performed.
6. 一种通信装置， 其特征在于， 所述装置包括：  A communication device, the device comprising:
匹配单元， 用于获取 RE数， 在第一时间阈值内， 根据所述 RE数进行速 率匹配， 将所述速率匹配的匹配结果发送至选择单元；  a matching unit, configured to obtain a RE number, perform rate matching according to the RE number in a first time threshold, and send the matching result of the rate matching to a selecting unit;
选择单元， 用于接收所述匹配单元发送的所述速率匹配的匹配结果， 根 据所述速率匹配的匹配结果， 选择当前 RE数。 a selecting unit, configured to receive the matching result of the rate matching sent by the matching unit, According to the matching result of the rate matching, the current RE number is selected.
7. 如权利要求 6所述的通信装置， 其特征在于，  7. The communication device of claim 6, wherein
所述匹配单元具体用于， 获取扣除 CS I-RS RE数的第一 RE数， 在第一时 间阈值内， 根据所述第一 RE数进行第一速率匹配；  The matching unit is specifically configured to: obtain a first RE number that is deducted from the CS I-RS RE number, and perform a first rate matching according to the first RE number in the first time threshold;
所述选择单元具体用于， 如果所述第一速率匹配的匹配结果正确， 则选 择所述第一 RE数作为当前 RE数， 否则， 选择没有扣除 CS I-RS RE数的第二 RE数作为当前 RE数。  The selecting unit is specifically configured to: if the matching result of the first rate matching is correct, select the first RE number as the current RE number; otherwise, select the second RE number that does not deduct the CS I-RS RE number. Current RE number.
8. 如权利要求 6所述的通信装置， 其特征在于，  8. The communication device of claim 6, wherein
所述匹配单元具体用于， 获取没有扣除 CS I-RS RE数的第二 RE数， 根据 所述第二 RE数进行第二速率匹配；  The matching unit is specifically configured to: obtain a second RE number that does not deduct a CS I-RS RE number, and perform a second rate matching according to the second RE number;
所述选择单元具体用于， 如果所述第二速率匹配的匹配结果正确， 则选择 所述第二 RE数作为当前 RE数， 否则， 则选择扣除 CS I-RS RE数的第一 RE数 作为当前 RE数。  The selecting unit is specifically configured to: if the matching result of the second rate matching is correct, select the second RE number as the current RE number; otherwise, select the first RE number that deducts the CS I-RS RE number as Current RE number.
9. 如权利要求 6至 8任一项所述的通信装置，其特征在于，所述匹配单 元中的第一时间阈值为 TTI的整数倍，并且所述第一时间阈值不小于 8个 TTI。  The communication device according to any one of claims 6 to 8, wherein the first time threshold in the matching unit is an integer multiple of TTI, and the first time threshold is not less than 8 TTIs.
10. 一种通信装置， 其特征在于， 所述装置包括：  10. A communication device, the device comprising:
处理单元， 用于在进行 MIM0模式配置的时候， 在 MBSFN子帧上面不进行 下行数据的发送。  The processing unit is configured to not perform downlink data transmission on the MBSFN subframe when performing MIM0 mode configuration.
11. 一种通信装置， 其特征在于， 所述装置包括：  A communication device, the device comprising:
网络接口；  Network Interface;
处理器；  Processor
存储器；  Memory
物理存储在所述存储器中的应用程序， 所述应用程序包括可用于使所述 处理器和所述***执行以下过程的指令：  An application physically stored in the memory, the application including instructions operable to cause the processor and the system to perform the following process:
获取 RE数， 在第一时间阈值内， 根据所述 RE数进行速率匹配； 根据所述速率匹配的匹配结果， 选择当前 RE数。 Acquiring the number of REs, performing rate matching according to the number of REs within the first time threshold; and selecting a current RE number according to the matching result of the rate matching.
12. 如权利要求 11所述的通信装置， 其特征在于， 12. The communication device of claim 11 wherein:
所述应用程序可用于使所述处理器和所述***执行获取 RE数， 在第一时 间阈值内， 根据所述 RE数进行速率匹配过程的指令为： 获取扣除 CS I-RS RE 数的第一 RE数， 在第一时间阈值内， 根据所述第一 RE数进行第一速率匹配； 所述应用程序可用于使所述根据所述速率匹配的匹配结果， 选择当前 RE 数过程的指令为： 如果所述第一速率匹配的匹配结果正确， 则选择所述第一 RE数作为当前 RE数， 否则， 选择没有扣除 CS I-RS RE数的第二 RE数作为当 前 RE数。  The application may be configured to cause the processor and the system to perform the acquisition of the RE number, and within the first time threshold, the instruction for performing the rate matching process according to the RE number is: acquiring the number of the CS I-RS RE number a RE number, in a first time threshold, performing a first rate matching according to the first RE number; the application may be configured to: use the matching result according to the rate matching, select an instruction of a current RE number process as If the matching result of the first rate matching is correct, the first RE number is selected as the current RE number, otherwise, the second RE number without subtracting the CS I-RS RE number is selected as the current RE number.
1 3. 如权利要求 11所述的通信装置， 其特征在于，  3. The communication device of claim 11 wherein:
所述应用程序可用于使所述处理器和所述***执行获取 RE数， 在第一时 间阈值内，根据所述 RE数进行速率匹配过程的指令为： 获取没有扣除 CS I-RS RE数的第二 RE数， 根据所述第二 RE数进行第二速率匹配；  The application may be configured to enable the processor and the system to perform the acquisition of the RE number, and within the first time threshold, the instruction of performing the rate matching process according to the RE number is: acquiring the CS I-RS RE number without deducting a second RE number, performing a second rate matching according to the second RE number;
所述应用程序可用于使所述根据所述速率匹配的匹配结果， 选择当前 RE 数过程的指令为： 如果所述第二速率匹配的匹配结果正确， 则选择所述第二 RE数作为当前 RE数， 否则， 选择扣除 CS I-RS RE数的第一 RE数作为当前 RE 数。  The application may be configured to: the matching result according to the rate matching, the instruction of selecting a current RE number process is: if the matching result of the second rate matching is correct, selecting the second RE number as the current RE Number, otherwise, the first RE number deducting the CS I-RS RE number is selected as the current RE number.
14. 如权利要求 11至 1 3任一项所述的通信装置， 其特征在于， 所述应用 程序中的所述第一时间阈值为 TTI的整数倍，并且所述第一时间阈值不小于 8 个 TTI。  The communication device according to any one of claims 11 to 13, wherein the first time threshold in the application is an integer multiple of TTI, and the first time threshold is not less than 8 TTI.
15. 一种通信装置， 其特征在于， 所述装置包括：  15. A communication device, the device comprising:
网络接口；  Network Interface;
处理器；  Processor
存储器；  Memory
物理存储在所述存储器中的应用程序， 所述应用程序包括可用于使所述 处理器和所述***执行以下过程的指令：  An application physically stored in the memory, the application including instructions operable to cause the processor and the system to perform the following process:
在进行 ΜΙΜ0模式配置的时候，在非 MBSFN子帧上面进行下行数据的发送。  When the ΜΙΜ0 mode is configured, downlink data is transmitted on the non-MBSFN subframe.
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