WO2011038621A1 - Method and equipment for transmitting downlink control information - Google Patents

Method and equipment for transmitting downlink control information Download PDF

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Publication number
WO2011038621A1
WO2011038621A1 PCT/CN2010/076319 CN2010076319W WO2011038621A1 WO 2011038621 A1 WO2011038621 A1 WO 2011038621A1 CN 2010076319 W CN2010076319 W CN 2010076319W WO 2011038621 A1 WO2011038621 A1 WO 2011038621A1
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WIPO (PCT)
Prior art keywords
downlink
backhaul subframe
control information
domain
data
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PCT/CN2010/076319
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French (fr)
Chinese (zh)
Inventor
梁枫
毕峰
杨瑾
吴栓栓
袁弋非
Original Assignee
中兴通讯股份有限公司
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Publication of WO2011038621A1 publication Critical patent/WO2011038621A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow

Definitions

  • the present invention relates to a technique for transmitting downlink control information; in particular, to a second type
  • relay technology has attracted more and more attention and is regarded as the key technology of B3G/4G.
  • future wireless communications or cellular systems require increased coverage and support for higher rate transmissions, this presents new challenges for wireless communication technologies.
  • the cost of system construction and maintenance is even more acute.
  • the transmission rate and communication distance increase, the energy consumption of the mobile terminal battery becomes prominent, and the future wireless communication will use higher frequencies, resulting in more serious path loss attenuation.
  • the traditional single-hop link can be divided into multiple multi-hop links. Due to the shortened distance, the path loss will be greatly reduced, which will improve the transmission quality and expand the communication range, thereby providing users with more Fast and better service.
  • the link between the user participating in the service and the relay station of the relay station is called an access link, and the link between the relay station and the base station is called a backhaul link.
  • the first type of relay station is a relay node mainly used for cell coverage expansion.
  • the first type of relay station has an independent cell ID and transmits a cell reference signal (CRS, Cell-specific Reference). Signal and Physical Downlink Control Channel (PDCCH), and is a base station for the lower version of the user during transmission.
  • CRS Cell reference signal
  • PDCH Physical Downlink Control Channel
  • the second type of relay station is a relay node mainly used for cell capacity expansion.
  • the second type of relay station does not have an independent cell ID, does not transmit CRS and PDCCH, and is at least one for the Release 8 version of the user during transmission. Transparent node.
  • a downlink subframe of a Long Term Evolution (LTE) and a Long Term Evolution Advanced (LTE-A) system is divided into a control domain and a data domain.
  • the control field is the first 1 to 3 or the first 2 to 4 Orthogonal Frequency Division Multiplexing (OFDM) symbols of the subframe, and the data field is removed from the subframe.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the OFDM symbol remaining after the field; for the multicast subframe the control field is the first or first 2 OFDM symbols of the subframe, and the data field is the OFDM symbol remaining after the control field is removed from the subframe.
  • the control domain corresponds to the data domain
  • the receiving end usually receives the PDCCH in the control domain, acquires control information, and receives, according to the acquired control information, the time-frequency location on the data domain of the specified subframe or subsequent subframes.
  • Physical Downlink Shared Channel (PDSCH) and processes data in the PDSCH.
  • the second type of relay station can further receive and process the PDSCH by receiving the PDCCH, or can receive its dedicated R-PDCCH first, and further receive and process the R-PDSCH according to the control information in the R-PDCCH.
  • the second type of relay station needs to obtain the corresponding PDCCH and/or R-PDCCH.
  • the PDCCH is located in the control domain
  • the PDSCH and the R-PDSCH are located in the data domain
  • the R-PDCCH may be multiplexed in the control domain or may be multiplexed in the data domain.
  • the downlink mode of the second type of relay station is mainly divided into two types, namely initial transmission enhancement and retransmission enhancement.
  • the second type of relay station needs to receive the relay station physical downlink control channel (R-PDCCH, Relay Node Physical Downlink Control) from the base station. Channel), and further receiving and processing a relay physical downlink shared channel (R-PDSCH, Relay Node Physical Downlink Shared Channel) of the current subframe or a plurality of subsequent subframes according to the control information in the R-PDCCH, in addition, the second The class relay station may also need to receive the PDCCH again, and receive and process the PDSCH of the current subframe or several subframes according to the control information on the PDCCH.
  • R-PDCCH relay station physical downlink control channel
  • R-PDSCH Relay Node Physical Downlink Shared Channel
  • the second type of relay station needs to receive the bearer on the PDCCH.
  • the control information is received and processed according to the control information indication, and the PDSCH of the subframe or the subsequent subframes is further received.
  • the second type of relay station may further need to receive the second type of relay-specific control information carried on the R-PDCCH.
  • the backhaul link, the access link, and the direct transmission link all operate on the same spectrum.
  • the second type of relay station acts as the in-band relay in the downlink transmission of the receiving base station, if the second type of relay station is also transmitting downlink to the user, the receiving end and the transmitting end of the second type of relay station itself Interference occurs, which can cause serious deterioration in communication quality.
  • the second type of relay station does not perform any downlink transmission and reception on the GP to avoid self-interference between the transmitting end and the receiving end during the conversion process. Therefore, the second type of relay downlink subframes are divided into two types: a subframe in which the second type of relay station performs downlink reception is called a downlink backhaul subframe, and a subframe in which the second type relay station performs downlink transmission is called a downlink access subframe.
  • a guard interval GP needs to be set between the subframes, as shown in FIG.
  • the partial OFDM symbol of the front end of the downlink Backhaul subframe may need to be set as the guard interval to avoid self-interference caused by radio frequency conversion, then
  • the second type of relay station cannot receive the PDCCH normally, and multiplexes the R-PDCCH in the control domain, and cannot further receive and process the corresponding PDSCH and R-PDSCH.
  • the control information and the number are generated. According to the loss of information transmission, system efficiency is reduced.
  • the technical problem to be solved by the present invention is to provide a method and a transmitting device for transmitting downlink control information, which ensures the integrity of control information and data information transmission, and improves system efficiency.
  • a method for transmitting downlink control information includes:
  • the downlink control information of the downlink Backhaul subframe data field is configured in the data field of the downlink Backhaul subframe, or the specified other downlink Backhaul subframe. And send it.
  • the specific location where the downlink control information is configured in the other downlink Backhaul subframe is: in a control domain and/or a data domain of the other downlink Backhaul subframe.
  • the functional entity configuring the downlink control information is a base station and a second type of relay station in the second type of relay station network, and the second type of relay station does not have an independent cell ID, does not send the cell CRS and the PDCCH, and is in the transmission process. At least transparent to users of 3GPP Release 8.
  • the method further includes:
  • the corresponding downlink control information is obtained in the data domain.
  • the method further includes:
  • the receive and acquire control domain is configured as The downlink control information of the downlink Backhaul subframe of the guard interval.
  • the method further includes:
  • the downlink Backhaul subframe After the downlink Backhaul subframe is configured as a guard interval of the downlink Backhaul subframe, the downlink Backhaul subframe configured as a guard interval in the control region
  • the next downlink Backhaul subframe control domain or/and the data domain receives and acquires downlink control information of the downlink Backhaul subframe in which the control domain is configured to guard the interval.
  • the method further includes:
  • the receiving control domain is configured to protect all data in the data field of the downlink Backhaul subframe or the specified part of the data, and store the downlink control information of the downlink Backhaul subframe, and then store the downlink control information according to the acquired downlink control information.
  • the data is processed.
  • a downlink control information sending apparatus includes: a configuration module, a sending module, where the configuration module is configured to: when the downlink Backhaul subframe control domain is configured as a guard interval, the downlink Backhaul subframe data field is correspondingly downlinked Control information is configured in other specified downlink Backhaul subframes;
  • the sending module is configured to send the downlink control information that is configured.
  • the device further includes a receiving module, configured to receive downlink control information; the configuration module and the sending module are disposed in the base station, the receiving module is disposed in the second type of relay station, and the second type of relay station is not independent
  • the cell ID does not send CRS and PDCCH, and is transparent to at least users of 3GPP Release 8 during transmission.
  • the configuration module includes: a first setting processing module, a second setting processing module, and a third setting processing module;
  • the first setting processing module is configured to configure, in the data field of the downlink Backhaul subframe, the downlink control information of the downlink Backhaul subframe data field in which the control domain is configured as a guard interval;
  • a second setting processing module configured to: after the downlink Backhaul subframe of the other downlink Backhaul subframe is configured as a guard interval, the control domain is configured as a downlink Backhaul subframe data field of the guard interval Corresponding downlink control information is configured in the specified other downlink Backhaul subframe control domain and/or data domain;
  • a third setting processing module configured to be configured in the control domain in the other downlink Backhaul subframes
  • the control domain is configured as the downlink control information of the downlink backhaul subframe data field of the guard interval
  • the downlink Backhaul configured in the control domain is configured as the guard interval.
  • the receiving module further includes: a fourth setting processing module, a fifth setting processing module, and a sixth setting processing module;
  • the fourth setting processing module is configured to receive downlink control information corresponding to the downlink backhaul subframe data field in a data domain of the downlink Backhaul subframe;
  • a fifth setting processing module configured to receive downlink control information corresponding to the downlink backhaul subframe data field in any subframe control domain and/or data domain of the other downlink Backhaul subframes;
  • a sixth setting processing module configured to receive, in the next downlink Backhaul subframe control domain and/or the data domain of the downlink Backhaul subframe in which the control domain is configured as a guard interval, the downlink of the downlink backhaul subframe data domain Control information.
  • the sixth setting processing module is further configured to receive all data or specified partial data on a data domain of the downlink Backhaul subframe in which the control domain is configured as a guard interval, and directly store the control domain. After the downlink control information of the downlink Backhaul subframe is configured to be guarded, the stored data is processed according to the indication of the downlink control information.
  • the method and device of the invention can avoid self-interference caused by radio frequency conversion, ensure the integrity of control information and data information transmission, and improve system efficiency.
  • Figure 1 is a schematic diagram of the structure of a relay network.
  • FIG. 2 is a schematic structural diagram of a downlink relay subframe.
  • FIG. 3 is a schematic diagram of a configuration and structure of a relay downlink subframe.
  • FIG. 4 is a schematic structural diagram of a downlink Backhaul subframe.
  • Figure 5 is a schematic diagram of downlink control information corresponding to a downlink Backhaul subframe.
  • FIG. 6 is a schematic diagram of downlink control information of a corresponding control domain of a downlink downlink Backhaul subframe, where the previous downlink Backhaul subframe is the previous one of the downlink Backhaul subframes shown in FIG. 5.
  • FIG. 7 is a schematic diagram of downlink control information of a corresponding data domain of a previous downlink Backhaul subframe.
  • FIG. 8 is a schematic diagram of downlink control information of a corresponding control domain and a data domain of a previous downlink Backhaul subframe.
  • FIG. 9 is a schematic diagram of downlink control information of a corresponding control domain of a downlink downlink Backhaul subframe, where the next downlink Backhaul subframe is the next downlink subframe of the downlink Backhaul shown in FIG. 5.
  • FIG. 10 is a schematic diagram of downlink control information of a corresponding data domain of a downlink downlink Backhaul subframe.
  • Figure 11 is a schematic diagram of downlink control information of the corresponding control domain and data domain of the next downlink Backhaul subframe.
  • FIG. 12 is a flowchart of a method for transmitting relay downlink control information in Embodiment 1.
  • FIG. 13 is a flowchart of a method for transmitting relay downlink control information in Embodiment 2.
  • FIG. 14 is a flowchart of a method for transmitting relay downlink control information in Embodiment 3.
  • FIG. 15 is a schematic diagram showing the structure of a base station in a network of a second type of relay station in Embodiment 4;
  • 16 is a schematic structural diagram of a second type of relay station that processes downlink control information in Embodiment 4. detailed description
  • the downlink control information or the relay downlink control information refers to downlink control information that the second type of relay station needs to receive.
  • the downlink backhaul subframe of the PDCCH cannot be received, and the corresponding downlink control information of the data domain is configured in the data domain of the subframe, or any other downlink backhaul subframe specified by the base station before the downlink Backhaul subframe.
  • the invention provides a downlink control information sending method for a second type relay station, which is specific Includes:
  • the downlink control information in the downlink Backhaul subframe control domain is configured in a control domain of other arbitrary downlink Backhaul subframes specified by the base station, and/or
  • the data domain is configured or configured in the downlink Backhaul subframe data field;
  • the second type of relay station does not have an independent cell ID, does not transmit (CRS) and PDCCH, and is a transparent node for the user at least Release 8 in the transmission process.
  • the second type of relay station When the other downlink Backhaul subframe is in front of the downlink Backhaul subframe, the second type of relay station receives and acquires the downlink in any other downlink Backhaul subframe control domain and/or data domain specified by the base station.
  • the downlink control information of the backhaul subframe, and receiving the data of the downlink Backhaul subframe according to the obtained downlink control information as shown in FIG. 6, FIG. 7, and FIG. 8;
  • the second type of relay station receives and acquires the downlink Backhaul in a downlink Backhaul subframe control domain or/and a data domain of the downlink Backhaul subframe.
  • the downlink control information of the subframe is shown in FIG. 9, FIG. 10, and FIG. 11;
  • the data in the data field of the downlink Backhaul subframe is directly stored in the data field of the downlink Backhaul subframe.
  • the downlink control information of the downlink Backhaul subframe is obtained, the downlink control information of the downlink Backhaul subframe is stored according to the indication of the downlink control information of the downlink Backhaul subframe. The data is processed.
  • three adjacent relay downlink subframes are a downlink Access subframe, a downlink Backhaul subframe, and a downlink Access subframe.
  • the first three OFDM symbols of the subframe 2 control domain are configured as guard intervals, and the second type of relay station cannot receive the PDCCH on the control domain of the subframe 2, and the data field of the subframe 2 is corresponding according to the method of the present invention.
  • the downlink control information is set in the data field of the subframe 2, and the second type of relay station can be guaranteed
  • the data information on subframe 2 is often received and processed.
  • the data domain always corresponds to a group of downlink control information for the data domain, and the information includes the time-frequency location and modulation of the corresponding data domain information.
  • the mode, the coding rate, the process number, and the like, the receiving end receives and processes the corresponding data domain information according to the indication of the downlink control information.
  • the processing of the data information described in the present invention includes performing demodulation, decoding, etc., and the receiving end processing process is prior art and will not be described herein.
  • three adjacent downlink sub-frames are downlink backhaul subframes, downlink access subframes, and downlink Backhaul subframes.
  • the first three OFDM symbols of the subframe 3 are configured as guard intervals, and the second type of relay station cannot receive the PDCCH on the control field of the subframe 3.
  • the data field of the subframe 3 is correspondingly downlinked.
  • the control information is set on the data field of the previous subframe 1 or the control domain, and the second type of relay station receives and processes the related data information on the data domain of the subframe 3 according to the relay downlink control information received and acquired on the subframe 1. It can be ensured that the data information on the subframe 3 is normally received and processed.
  • the data domain is a relatively large concept, many of the data domains belong to different receiving ends (for example: the second type of relay station or Data of the user, and the data belonging to the second type of relay station described in this embodiment;
  • the second type of relay station is any subframe of other downlink Backhaul subframes.
  • the control domain or the data domain does not have sufficient resources for the transmission of the downlink control signaling, it may be simultaneously configured on the control domain and the data domain; that is, the control domain and the data domain of the previous subframe 1 may be simultaneously set. And in the control field of subframe 1 and The data domain receives and acquires downlink control information of the downlink Backhaul subframe.
  • three adjacent relay downlink subframes are a downlink access subframe, a downlink Backhaul subframe, and a downlink Backhaul subframe.
  • the first three OFDM symbols of the subframe 2 control domain are configured as guard intervals, and the second type of relay station cannot receive the PDCCH on the control domain of the subframe 2, and the data field of the subframe 2 is corresponding according to the method of the present invention.
  • the downlink control information is set in the control field or data field of the subsequent subframe 3.
  • the second type of relay station first receives and stores all the data or the specified part of the data in the data field of the subframe 2, and after receiving and acquiring the corresponding downlink control information in the control domain of the subframe 3, according to the control information Instructing to process the stored data ensures that the second type of relay station normally receives and processes the data information on the subframe 2.
  • the second type of relay station needs to receive the data information first when the control information is not obtained, the second type of relay station cannot select its own data according to the indication of the control information according to the normal situation and receive the data. Processing, at this time, only the entire bandwidth or data on the pre-specified bandwidth can be received and saved first, and no processing is performed (because there is no control information that cannot be processed;), until the next sub-frame receives the control information and then saves it before processing. The data.
  • the downlink backhaul subframe downlink control information of the subframe 2 may be simultaneously configured in the subframe 3 control domain and the data domain, and the downlink Backhaul sub is received and acquired in the subframe 3 control domain and the data domain. Downlink control information of the frame.
  • the present invention further provides a base station in a second type of relay station network, including a configuration module and a sending module.
  • the configuration module is used when the second type of relay station is backhaul Backhaul
  • the downlink control information corresponding to the downlink Backhaul subframe data field is configured in the data field of the downlink Backhaul subframe, or other arbitrary (eg, specified by a functional entity such as a base station) a control domain and/or a data domain of a downlink Backhaul subframe
  • the sending module is configured to send the downlink control information that is configured.
  • the configuration module includes: a first setting processing module, a second setting processing module, and a third setting processing module,
  • the first setting processing module is configured to configure, in the data field of the downlink Backhaul subframe, the downlink control information of the downlink Backhaul subframe data field in which the control domain is configured as a guard interval;
  • a second setting processing module configured to: when the other downlink Backhaul subframes are in front of the downlink Backhaul subframe in which the control domain is configured as a guard interval, configure the control region as the downlink Backhaul subframe data of the guard interval
  • the corresponding downlink control information of the domain is configured in any one of the subframe control domain and/or the data domain of the other downlink Backhaul subframes;
  • a third setting processing module configured to: when the other downlink Backhaul subframes are behind the downlink Backhaul subframe in which the control region is configured as a guard interval, configure the control region as the downlink Backhaul subframe data of the guard interval
  • the corresponding downlink control information of the domain is configured in a next downlink Backhaul subframe control domain and/or a data domain of the downlink Backhaul subframe in which the control domain is configured as a guard interval.
  • the present invention further provides a second type of relay station, including a receiving module.
  • the receiving module is configured to: when the second type of relay station performs the downlink control information of the Backhaul subframe data field, the downlink control information is configured in the data field of the downlink Backhaul subframe or specified by other functional entities (such as a base station and other functional entities)
  • the control field and/or the data field of the downlink Backhaul subframe is in a downlink
  • the downlink control information corresponding to the downlink backhaul subframe data field is received.
  • the second type of relay station does not have an independent cell ID, does not send CRS and PDCCH, and is at least a transparent node to the user of Release 8 in the transmission process.
  • the receiving module includes: a fourth setting processing module, a fifth setting processing module, and a sixth setting processing module,
  • the fourth setting processing module is configured to receive downlink control information corresponding to the downlink backhaul subframe data field in a data domain of the downlink Backhaul subframe;
  • a fifth setting processing module configured to receive downlink control information corresponding to the downlink backhaul subframe data field in any one of the other downlink backhaul subframes and/or the data domain;
  • a sixth setting processing module configured to receive, in a next downlink Backhaul subframe control domain and/or a data domain of the downlink Backhaul subframe in which the control domain is configured as a guard interval, a downlink corresponding to the downlink backhaul subframe data domain Control information.
  • the sixth setting processing module is further configured to receive all data or specified partial data on a data field of the downlink Backhaul subframe in which the control domain is configured as a guard interval, and directly store the control domain. After the downlink control information of the downlink Backhaul subframe is configured to be guarded, the stored data is processed according to the indication of the downlink control information.
  • the content of the above method and apparatus can be applied to other base stations and other devices capable of downlink control information processing, as long as the downlink Backhaul subframe control domain is used.
  • the device When configured as a guard interval, the device can configure the downlink control information of the downlink Backhaul subframe data field in the specified other downlink backhaul subframe or in the downlink Backhaul subframe data domain. Any modifications or partial substitutions of the spirit and scope of the invention are intended to be included within the scope of the appended claims.

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Abstract

A method for transmitting downlink control information is provided in the present invention. The method includes that: while a control area of a downlink Backhaul sub-frame of a typeⅡrelay station is configured as a guard interval, downlink control information corresponding to a data area of the downlink Backhaul sub-frame is configured in any other downlink Backhaul sub-frame designated by a base station or configured in the data area of the downlink Backhaul sub-frame to be transmitted. An equipment for transmitting downlink control information is also provided in the present invention. The device includes: a configuration module(1), which is used to, while a control area of a downlink Backhaul sub-frame of a typeⅡrelay station is configured as a guard interval, configure downlink control information corresponding to a data area of the downlink Backhaul sub-frame in any other downlink Backhaul sub-frame designated by a base station; a transmission module(2), which is used to transmit the downlink control information corresponding to the data area of the downlink Backhaul sub-frame. The present invention ensures the integrality of the control information and data information transmission, and enhances the processing efficiency of a system.

Description

一种下行控制信息的发送方法和发送装置 技术领域  Method and device for transmitting downlink control information
本发明涉及下行控制信息的发送技术； 尤其涉及到一种用于第二类 The present invention relates to a technique for transmitting downlink control information; in particular, to a second type
( Type 2 ) 中继站及其下行控制信息的发送方法。 背景技术 (Type 2) A method of transmitting a relay station and its downlink control information. Background technique
中继技术作为一种新兴的技术， 引起了越来越广泛的注意， 被视为 B3G/4G的关键技术。 由于未来无线通信或蜂窝***要求增加覆盖范围， 支 持更高速率传输， 这对无线通信技术提出了新的挑战。 同时， ***建造和 维护的费用问题更加突出。 随着传输速率及通信距离的增加， 移动终端电 池的耗能问题也变得突出， 而且未来的无线通信将会釆用更高频率， 由此 造成的路径损耗衰减更加严重。 通过中继技术， 可以将传统的单跳链路分 成多个多跳链路， 由于距离缩短， 这将极大地减小路径损耗， 有助于提高 传输质量， 扩大通信范围， 从而为用户提供更快速更优质的服务。  As an emerging technology, relay technology has attracted more and more attention and is regarded as the key technology of B3G/4G. As future wireless communications or cellular systems require increased coverage and support for higher rate transmissions, this presents new challenges for wireless communication technologies. At the same time, the cost of system construction and maintenance is even more acute. As the transmission rate and communication distance increase, the energy consumption of the mobile terminal battery becomes prominent, and the future wireless communication will use higher frequencies, resulting in more serious path loss attenuation. Through the relay technology, the traditional single-hop link can be divided into multiple multi-hop links. Due to the shortened distance, the path loss will be greatly reduced, which will improve the transmission quality and expand the communication range, thereby providing users with more Fast and better service.
如图 1 所示， 在中继网络中， 中继站参与服务的用户与中继站间的链 路被称为接入链路 ( Access Link ), 中继站与基站间的链路被称为回程链路 As shown in Figure 1, in a relay network, the link between the user participating in the service and the relay station of the relay station is called an access link, and the link between the relay station and the base station is called a backhaul link.
( Backhaul Link ) , 基站参与服务的用户和基站之间的链路被称为直传链路(Backhaul Link), the link between the user participating in the service and the base station is called a direct transmission link.
( Direct Link )。 (Direct Link).
目前在第三代合作伙伴计划（ 3GPP, 3rd Generation Partnership Project ) Release 9版本标准 TR 36.814_121中， Release是指 3GPP标准的版本， 目 前演进到 Release 10, 协议 3GPP TS 36.300 V9.0.0 是对 Release 9无线接入 网络协议的综述。 中继站分为两类：  Currently in the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) Release 9 standard TR 36.814_121, Release refers to the version of the 3GPP standard, which is currently evolving to Release 10, and the protocol 3GPP TS 36.300 V9.0.0 is for Release 9 Overview of wireless access network protocols. There are two types of relay stations:
第一类中继站是一种主要用于小区覆盖扩大的中继节点， 第一类中继 站拥有独立的小区 ID, 发送小区参考信号 （CRS , Cell-specific Reference Signal )和物理下行控制信道（ PDCCH, Physical Downlink Control Channel ), 并且在传输过程中对于低版本的用户来说是一个基站。 The first type of relay station is a relay node mainly used for cell coverage expansion. The first type of relay station has an independent cell ID and transmits a cell reference signal (CRS, Cell-specific Reference). Signal and Physical Downlink Control Channel (PDCCH), and is a base station for the lower version of the user during transmission.
第二类中继站是一种主要用于小区容量扩大的中继节点， 第二类中继 站没有独立的小区 ID, 不发送 CRS和 PDCCH, 并且在传输过程中至少对 Release 8版本的用户来说是一个透明的节点。  The second type of relay station is a relay node mainly used for cell capacity expansion. The second type of relay station does not have an independent cell ID, does not transmit CRS and PDCCH, and is at least one for the Release 8 version of the user during transmission. Transparent node.
如图 2所示， 一般来说， 长期演进（LTE, Long Term Evolution ) 以及 长期演进的后续演进（ LTE- A , Long Term Evolution Advanced )***的下行 子帧被分为控制域和数据域两部分， 对于单播子帧来说， 控制域为子帧的 前 1到 3个或者前 2到 4个正交频分复用 ( OFDM, Orthogonal Frequency Division Multiplexing )符号，数据域为子帧中除去控制域之后剩下的 OFDM 符号；对于多播子帧来说，控制域为子帧的第 1个或者前 2个 OFDM符号， 数据域为子帧中除去控制域之后剩下的 OFDM符号。 控制域与数据域相对 应， 接收端通常先接收控制域中的 PDCCH, 获取控制信息， 并根据所获取 的控制信息， 在指定的本子帧或者之后若干个子帧的数据域上的时频位置 接收物理下行共享信道 ( PDSCH, Physical Downlink Shared Channel ), 并 对 PDSCH中的数据进行处理。  As shown in FIG. 2, in general, a downlink subframe of a Long Term Evolution (LTE) and a Long Term Evolution Advanced (LTE-A) system is divided into a control domain and a data domain. For a unicast subframe, the control field is the first 1 to 3 or the first 2 to 4 Orthogonal Frequency Division Multiplexing (OFDM) symbols of the subframe, and the data field is removed from the subframe. The OFDM symbol remaining after the field; for the multicast subframe, the control field is the first or first 2 OFDM symbols of the subframe, and the data field is the OFDM symbol remaining after the control field is removed from the subframe. The control domain corresponds to the data domain, and the receiving end usually receives the PDCCH in the control domain, acquires control information, and receives, according to the acquired control information, the time-frequency location on the data domain of the specified subframe or subsequent subframes. Physical Downlink Shared Channel (PDSCH), and processes data in the PDSCH.
第二类中继站作为一个特殊的接收端，可以直接通过接收 PDCCH再进 一步接收并处理 PDSCH , 也可以先接收其专用的 R-PDCCH , 并根据 R-PDCCH中的控制信息进一步接收并处理 R-PDSCH或者 PDSCH, 总之， 针对相应的 PDSCH和 /或 R-PDSCH,第二类中继站需要获得相应的 PDCCH 和 /或 R-PDCCH。 一般情况下， PDCCH位于控制域， PDSCH和 R-PDSCH 位于数据域， R-PDCCH可以复用在控制域， 也可以复用在数据域中。  As a special receiving end, the second type of relay station can further receive and process the PDSCH by receiving the PDCCH, or can receive its dedicated R-PDCCH first, and further receive and process the R-PDSCH according to the control information in the R-PDCCH. Or PDSCH, in summary, for the corresponding PDSCH and/or R-PDSCH, the second type of relay station needs to obtain the corresponding PDCCH and/or R-PDCCH. Generally, the PDCCH is located in the control domain, the PDSCH and the R-PDSCH are located in the data domain, and the R-PDCCH may be multiplexed in the control domain or may be multiplexed in the data domain.
第二类中继站的下行工作方式主要分为两种， 分别是初始传输增强和 重传增强。 在初始传输增强的工作方式下， 第二类中继站需要从基站接收 中继站物理下行控制信道（ R-PDCCH, Relay Node Physical Downlink Control Channel ),并且根据该 R-PDCCH中的控制信息来进一步接收并处理本子帧 或之后若干个子帧的中继站物理下行共享信道 ( R-PDSCH , Relay Node Physical Downlink Shared Channel ), 另夕卜， 第二类中继站还可能需要再接收 PDCCH, 并且根据该 PDCCH上的控制信息来接收并处理本子帧或之后若 干个子帧的 PDSCH; 在重传增强的工作方式下， 第二类中继站需要接收承 载在 PDCCH上的控制信息，并且根据该控制信息指示来接收并处理本子帧 或之后若干个子帧的 PDSCH, 另外， 第二类中继站还可能需要再接收承载 在 R-PDCCH上的第二类中继站专用控制信息。 The downlink mode of the second type of relay station is mainly divided into two types, namely initial transmission enhancement and retransmission enhancement. In the initial transmission enhanced mode of operation, the second type of relay station needs to receive the relay station physical downlink control channel (R-PDCCH, Relay Node Physical Downlink Control) from the base station. Channel), and further receiving and processing a relay physical downlink shared channel (R-PDSCH, Relay Node Physical Downlink Shared Channel) of the current subframe or a plurality of subsequent subframes according to the control information in the R-PDCCH, in addition, the second The class relay station may also need to receive the PDCCH again, and receive and process the PDSCH of the current subframe or several subframes according to the control information on the PDCCH. In the retransmission enhanced mode, the second type of relay station needs to receive the bearer on the PDCCH. The control information is received and processed according to the control information indication, and the PDSCH of the subframe or the subsequent subframes is further received. In addition, the second type of relay station may further need to receive the second type of relay-specific control information carried on the R-PDCCH.
对于带内中继 （In-band relaying ), 回程链路、 接入链路和直传链路都 工作在相同的频谱上。 一般情况下， 当第二类中继站作为带内中继在接收 基站下行传输的同时， 如果第二类中继站也在向用户进行下行发射， 则会 使得第二类中继站自身的接收端与发射端之间产生干扰， 这样会造成通信 质量的严重恶化。 因此， 对于带内中继， 规定回程链路和接入链路上不能 同时进行下行传输， 并且当第二类中继站在下行发射状态与下行接收状态 之间转换时， 需要一定长度的转换时间作为保护间隔（GP, Guard Period ), 第二类中继站在 GP上不进行任何下行的发射和接收，以避免在转换过程中 产生发射端与接收端的自干扰。 因此， 这里将第二类中继下行子帧分为两 种： 第二类中继站进行下行接收的子帧称为下行 Backhaul子帧， 第二类中 继站进行下行发射的子帧称为下行 Access子帧， 当这两种子帧相邻时， 子 帧间需要设置保护间隔 GP , 如图 3所示。  For in-band relaying, the backhaul link, the access link, and the direct transmission link all operate on the same spectrum. Under normal circumstances, when the second type of relay station acts as the in-band relay in the downlink transmission of the receiving base station, if the second type of relay station is also transmitting downlink to the user, the receiving end and the transmitting end of the second type of relay station itself Interference occurs, which can cause serious deterioration in communication quality. Therefore, for in-band relay, it is specified that downlink transmission cannot be performed simultaneously on the backhaul link and the access link, and when the second type of relay station switches between the downlink transmission state and the downlink reception state, a certain length of conversion time is required as Guardian interval (GP, Guard Period), the second type of relay station does not perform any downlink transmission and reception on the GP to avoid self-interference between the transmitting end and the receiving end during the conversion process. Therefore, the second type of relay downlink subframes are divided into two types: a subframe in which the second type of relay station performs downlink reception is called a downlink backhaul subframe, and a subframe in which the second type relay station performs downlink transmission is called a downlink access subframe. When the two seed frames are adjacent, a guard interval GP needs to be set between the subframes, as shown in FIG.
但是考虑到为了实现第二类中继站无干扰的从下行发射转换到下行接 收状态，下行 Backhaul子帧前端的部分 OFDM符号可能需要被设置为保护 间隔用来避免因射频转换而导致的自干扰， 那么第二类中继站就无法正常 接收 PDCCH, 以及复用在控制域上的 R-PDCCH, 不能进一步对相应的 PDSCH和 R-PDSCH进行接收和处理， 如图 4所示， 会导致控制信息和数 据信息传输丟失， 降低***效率。 发明内容 However, in order to realize the non-interference of the second type of relay station from the downlink transmission to the downlink reception state, the partial OFDM symbol of the front end of the downlink Backhaul subframe may need to be set as the guard interval to avoid self-interference caused by radio frequency conversion, then The second type of relay station cannot receive the PDCCH normally, and multiplexes the R-PDCCH in the control domain, and cannot further receive and process the corresponding PDSCH and R-PDSCH. As shown in FIG. 4, the control information and the number are generated. According to the loss of information transmission, system efficiency is reduced. Summary of the invention
本发明要解决的技术问题在于提供一种下行控制信息的发送方法和发 送装置， 保证控制信息和数据信息传输的完整性， 提高***效率。  The technical problem to be solved by the present invention is to provide a method and a transmitting device for transmitting downlink control information, which ensures the integrity of control information and data information transmission, and improves system efficiency.
为了达到上述目的， 本发明的技术方案是这样实现的：  In order to achieve the above object, the technical solution of the present invention is achieved as follows:
一种下行控制信息发送方法， 包括：  A method for transmitting downlink control information includes:
当下行 Backhaul 子帧控制域被配置为保护间隔时， 将所述下行 Backhaul子帧数据域相应的下行控制信息配置在该下行 Backhaul子帧的数 据域中， 或指定的其他下行 Backhaul子帧中， 并进行发送。  When the downlink backhaul subframe control field is configured as the guard interval, the downlink control information of the downlink Backhaul subframe data field is configured in the data field of the downlink Backhaul subframe, or the specified other downlink Backhaul subframe. And send it.
优选地， 将所述下行控制信息配置在所述其他下行 Backhaul子帧中的 具***置为： 在所述其他下行 Backhaul子帧的控制域和 /或数据域中。  Preferably, the specific location where the downlink control information is configured in the other downlink Backhaul subframe is: in a control domain and/or a data domain of the other downlink Backhaul subframe.
优选地， 配置所述下行控制信息的功能实体为第二类中继站网络中的 基站和第二类中继站， 所述第二类中继站没有独立的小区 ID, 不发送小区 CRS和 PDCCH, 并且在传输过程中至少对 3GPP Release 8的用户透明。  Preferably, the functional entity configuring the downlink control information is a base station and a second type of relay station in the second type of relay station network, and the second type of relay station does not have an independent cell ID, does not send the cell CRS and the PDCCH, and is in the transmission process. At least transparent to users of 3GPP Release 8.
优选地， 所述方法还包括：  Preferably, the method further includes:
当所述下行 Backhaul子帧数据域相应的下行控制信息被配置在该下行 Backhaul子帧的数据域中时， 在所述数据域中获取相应的下行控制信息。  When the downlink control information of the downlink Backhaul subframe data field is configured in the data domain of the downlink Backhaul subframe, the corresponding downlink control information is obtained in the data domain.
优选地， 所述方法还包括：  Preferably, the method further includes:
在所述其他下行 Backhaul子帧在控制域被配置为保护间隔的所述下行 Backhaul子帧之前， 在所述其他下行 Backhaul子帧控制域和 /或数据域中， 接收并获取控制域被配置为保护间隔的所述下行 Backhaul子帧的下行控制 信息。  Before the other downlink Backhaul subframes are configured in the control domain as the guard interval of the downlink Backhaul subframe, in the other downlink Backhaul subframe control domain and/or data domain, the receive and acquire control domain is configured as The downlink control information of the downlink Backhaul subframe of the guard interval.
优选地， 所述方法还包括：  Preferably, the method further includes:
在所述其他下行 Backhaul子帧在控制域被配置为保护间隔的所述下行 Backhaul子帧之后， 在控制域被配置为保护间隔的所述下行 Backhaul子帧 的下一个下行 Backhaul子帧控制域或 /和数据域中，接收并获取控制域被配 置为保护间隔的所述下行 Backhaul子帧的下行控制信息。 After the downlink Backhaul subframe is configured as a guard interval of the downlink Backhaul subframe, the downlink Backhaul subframe configured as a guard interval in the control region The next downlink Backhaul subframe control domain or/and the data domain receives and acquires downlink control information of the downlink Backhaul subframe in which the control domain is configured to guard the interval.
优选地， 所述方法还包括：  Preferably, the method further includes:
接收控制域被配置为保护间隔的所述下行 Backhaul子帧的数据域全部 数据或指定的部分数据并存储， 在获取到该下行 Backhaul子帧的下行控制 信息后， 依据获取的下行控制信息对存储的所述数据进行处理。  The receiving control domain is configured to protect all data in the data field of the downlink Backhaul subframe or the specified part of the data, and store the downlink control information of the downlink Backhaul subframe, and then store the downlink control information according to the acquired downlink control information. The data is processed.
一种下行控制信息发送装置， 包括： 配置模块、 发送模块； 其中， 所述配置模块，用于当下行 Backhaul子帧控制域被配置为保护间隔时， 将该下行 Backhaul子帧数据域相应的下行控制信息配置在指定的其他下行 Backhaul子帧中；  A downlink control information sending apparatus includes: a configuration module, a sending module, where the configuration module is configured to: when the downlink Backhaul subframe control domain is configured as a guard interval, the downlink Backhaul subframe data field is correspondingly downlinked Control information is configured in other specified downlink Backhaul subframes;
所述发送模块， 用于发送完成配置的所述下行控制信息。  The sending module is configured to send the downlink control information that is configured.
优选地， 所述装置还包括接收模块， 用于接收下行控制信息； 所述配 置模块和发送模块设置于基站中， 所述接收模块设置于第二类中继站中， 所述第二类中继站没有独立的小区 ID, 不发送 CRS和 PDCCH, 并且在传 输过程中至少对 3GPP Release 8的用户透明。  Preferably, the device further includes a receiving module, configured to receive downlink control information; the configuration module and the sending module are disposed in the base station, the receiving module is disposed in the second type of relay station, and the second type of relay station is not independent The cell ID, does not send CRS and PDCCH, and is transparent to at least users of 3GPP Release 8 during transmission.
优选地， 所述配置模块包括： 第一设置处理模块、 第二设置处理模块 和第三设置处理模块； 其中，  Preferably, the configuration module includes: a first setting processing module, a second setting processing module, and a third setting processing module;
所述第一设置处理模块， 用于将控制域被配置为保护间隔的所述下行 Backhaul子帧数据域相应的下行控制信息配置在该下行 Backhaul子帧的数 据域中；  The first setting processing module is configured to configure, in the data field of the downlink Backhaul subframe, the downlink control information of the downlink Backhaul subframe data field in which the control domain is configured as a guard interval;
第二设置处理模块， 用于在所述其他下行 Backhaul子帧在控制域被配 置为保护间隔的所述下行 Backhaul子帧之前， 将控制域被配置为保护间隔 的所述下行 Backhaul子帧数据域相应的下行控制信息， 配置在指定的其他 下行 Backhaul子帧控制域和 /或数据域中；  a second setting processing module, configured to: after the downlink Backhaul subframe of the other downlink Backhaul subframe is configured as a guard interval, the control domain is configured as a downlink Backhaul subframe data field of the guard interval Corresponding downlink control information is configured in the specified other downlink Backhaul subframe control domain and/or data domain;
第三设置处理模块， 用于在所述其他下行 Backhaul子帧在控制域被配 置为保护间隔的所述下行 Backhaul子帧之后， 将控制域被配置为保护间隔 的所述下行 Backhaul子帧数据域相应的下行控制信息， 配置在控制域被配 置为保护间隔的所述下行 Backhaul子帧的下一个下行 Backhaul子帧控制域 和 /或数据域中。 a third setting processing module, configured to be configured in the control domain in the other downlink Backhaul subframes After the downlink backhaul subframe is configured as the guard interval, the control domain is configured as the downlink control information of the downlink backhaul subframe data field of the guard interval, and the downlink Backhaul configured in the control domain is configured as the guard interval. The next downlink Backhaul subframe control field and/or data field of the subframe.
优选地， 所述接收模块进一步包括： 第四设置处理模块、 第五设置处 理模块和第六设置处理模块； 其中，  Preferably, the receiving module further includes: a fourth setting processing module, a fifth setting processing module, and a sixth setting processing module;
所述第四设置处理模块， 用于在所述该下行 Backhaul子帧的数据域中 接收所述下行 backhaul子帧数据域相应的下行控制信息；  The fourth setting processing module is configured to receive downlink control information corresponding to the downlink backhaul subframe data field in a data domain of the downlink Backhaul subframe;
第五设置处理模块， 用于在所述其他下行 Backhaul子帧任意一个子帧 控制域和 /或数据域中接收所述下行 backhaul子帧数据域相应的下行控制信 息；  a fifth setting processing module, configured to receive downlink control information corresponding to the downlink backhaul subframe data field in any subframe control domain and/or data domain of the other downlink Backhaul subframes;
第六设置处理模块， 用于在控制域被配置为保护间隔的所述下行 Backhaul子帧的下一个下行 Backhaul子帧控制域和 /或数据域中接收所述下 行 backhaul子帧数据域相应的下行控制信息。  a sixth setting processing module, configured to receive, in the next downlink Backhaul subframe control domain and/or the data domain of the downlink Backhaul subframe in which the control domain is configured as a guard interval, the downlink of the downlink backhaul subframe data domain Control information.
优选地， 所述第六设置处理模块还用于在控制域被配置为保护间隔的 所述下行 Backhaul子帧的数据域上接收全部数据或指定的部分数据， 并直 接存储， 在获取到控制域被配置为保护间隔的所述下行 Backhaul子帧的下 行控制信息后， 依据该下行控制信息的指示对存储的数据进行处理。  Preferably, the sixth setting processing module is further configured to receive all data or specified partial data on a data domain of the downlink Backhaul subframe in which the control domain is configured as a guard interval, and directly store the control domain. After the downlink control information of the downlink Backhaul subframe is configured to be guarded, the stored data is processed according to the indication of the downlink control information.
可见， 本发明方法和装置能够避免因射频转换而导致的自干扰， 保证 控制信息和数据信息传输的完整性， 提高***效率。 附图说明  It can be seen that the method and device of the invention can avoid self-interference caused by radio frequency conversion, ensure the integrity of control information and data information transmission, and improve system efficiency. DRAWINGS
图 1为中继网络结构示意图。  Figure 1 is a schematic diagram of the structure of a relay network.
图 2为下行中继子帧结构示意图。  2 is a schematic structural diagram of a downlink relay subframe.
图 3为中继下行子帧配置与结构示意图。  FIG. 3 is a schematic diagram of a configuration and structure of a relay downlink subframe.
图 4为下行 Backhaul子帧结构示意图。 图 5 为一个下行 Backhaul子帧相应的下行控制信息示意图。 4 is a schematic structural diagram of a downlink Backhaul subframe. Figure 5 is a schematic diagram of downlink control information corresponding to a downlink Backhaul subframe.
图 6为前一个下行 Backhaul子帧相应控制域的下行控制信息示意图， 其中，前一个下行 Backhaul子帧为图 5中所示下行 Backhaul子帧的前一个。  6 is a schematic diagram of downlink control information of a corresponding control domain of a downlink downlink Backhaul subframe, where the previous downlink Backhaul subframe is the previous one of the downlink Backhaul subframes shown in FIG. 5.
图 7为前一个下行 Backhaul子帧相应数据域的下行控制信息示意图。 图 8为前一个下行 Backhaul子帧相应控制域和数据域的下行控制信息 示意图。  FIG. 7 is a schematic diagram of downlink control information of a corresponding data domain of a previous downlink Backhaul subframe. FIG. 8 is a schematic diagram of downlink control information of a corresponding control domain and a data domain of a previous downlink Backhaul subframe.
图 9为下一个下行 Backhaul子帧相应控制域的下行控制信息示意图， 其中，下一个下行 Backhaul子帧为图 5中所示下行 Backhaul子帧的下一个。  FIG. 9 is a schematic diagram of downlink control information of a corresponding control domain of a downlink downlink Backhaul subframe, where the next downlink Backhaul subframe is the next downlink subframe of the downlink Backhaul shown in FIG. 5.
图 10为下一个下行 Backhaul子帧相应数据域的下行控制信息示意图。 图 11为下一个下行 Backhaul子帧相应控制域和数据域的下行控制信息 示意图。  FIG. 10 is a schematic diagram of downlink control information of a corresponding data domain of a downlink downlink Backhaul subframe. Figure 11 is a schematic diagram of downlink control information of the corresponding control domain and data domain of the next downlink Backhaul subframe.
图 12为实施例 1中继下行控制信息的发送方法流程图。  FIG. 12 is a flowchart of a method for transmitting relay downlink control information in Embodiment 1.
图 13为实施例 2中继下行控制信息的发送方法流程图。  FIG. 13 is a flowchart of a method for transmitting relay downlink control information in Embodiment 2.
图 14为实施例 3中继下行控制信息的发送方法流程图。  FIG. 14 is a flowchart of a method for transmitting relay downlink control information in Embodiment 3.
图 15为实施例 4下行控制信息的发送第二类中继站网络中的基站的结 构示意图；  15 is a schematic diagram showing the structure of a base station in a network of a second type of relay station in Embodiment 4;
图 16为实施例 4处理下行控制信息的第二类中继站的结构示意图。 具体实施方式  16 is a schematic structural diagram of a second type of relay station that processes downlink control information in Embodiment 4. detailed description
本发明设计思想为， 在本发明中所述下行控制信息或中继下行控制信 息都是指第二类中继站需要接收的下行控制信息。 针对第二类中继站不能 接收 PDCCH的下行 Backhaul子帧， 将其数据域相应的下行控制信息配置 在该子帧的数据域， 或者， 该下行 Backhaul子帧之前基站指定的其他任意 一下行 Backhaul子帧的控制域或 /和数据域，或者，该下行 Backhaul子帧之 后下一个下行 Backhaul子帧的控制域或 /和数据域中， 并进行发送。  The design idea of the present invention is that, in the present invention, the downlink control information or the relay downlink control information refers to downlink control information that the second type of relay station needs to receive. For the second type of relay station, the downlink backhaul subframe of the PDCCH cannot be received, and the corresponding downlink control information of the data domain is configured in the data domain of the subframe, or any other downlink backhaul subframe specified by the base station before the downlink Backhaul subframe. The control field or/and the data field, or the control domain or/and data field of the next downlink Backhaul subframe after the downlink Backhaul subframe, and transmitted.
本发明提供的一种用于第二类中继站的下行控制信息发送方法， 具体 包括： The invention provides a downlink control information sending method for a second type relay station, which is specific Includes:
当第二类中继站一下行 Backhaul子帧控制域被配置为保护间隔时， 所 述下行 Backhaul子帧控制域中的下行控制信息被配置在基站指定的其他任 意下行 Backhaul子帧的控制域和 /或数据域中或配置在该下行 Backhaul子帧 数据域中并发送；  When the backhaul subframe control domain of the second type of relay station is configured as a guard interval, the downlink control information in the downlink Backhaul subframe control domain is configured in a control domain of other arbitrary downlink Backhaul subframes specified by the base station, and/or The data domain is configured or configured in the downlink Backhaul subframe data field;
其中，第二类中继站为没有独立的小区 ID, 不发送（ CRS )和 PDCCH, 并且在传输过程中对至少对 Release 8的用户来说是一个透明的节点。  The second type of relay station does not have an independent cell ID, does not transmit (CRS) and PDCCH, and is a transparent node for the user at least Release 8 in the transmission process.
当所述其他下行 Backhaul子帧在该下行 Backhaul子帧之前时， 所述第 二类中继站在所述基站指定的其他任意一个下行 Backhaul子帧控制域和 / 或数据域中， 接收并获取该下行 Backhaul子帧的下行控制信息， 并根据获 取的下行控制信息对所述该下行 Backhaul子帧的数据进行接收处理如图 6、 图 7、 图 8所示；  When the other downlink Backhaul subframe is in front of the downlink Backhaul subframe, the second type of relay station receives and acquires the downlink in any other downlink Backhaul subframe control domain and/or data domain specified by the base station. The downlink control information of the backhaul subframe, and receiving the data of the downlink Backhaul subframe according to the obtained downlink control information, as shown in FIG. 6, FIG. 7, and FIG. 8;
当所述其他下行 Backhaul子帧在该下行 Backhaul子帧之后时， 所述第 二类中继站在该下行 Backhaul子帧下一个下行 Backhaul子帧控制域或 /和数 据域中， 接收并获取该下行 Backhaul子帧的下行控制信息如图 9、 图 10、 图 11所示；  When the other downlink Backhaul subframe is behind the downlink Backhaul subframe, the second type of relay station receives and acquires the downlink Backhaul in a downlink Backhaul subframe control domain or/and a data domain of the downlink Backhaul subframe. The downlink control information of the subframe is shown in FIG. 9, FIG. 10, and FIG. 11;
所述该下行 Backhaul子帧的数据域上接收全部数据或指定的部分数据 直接存储， 在获取到该下行 Backhaul子帧的下行控制信息后， 依据该下行 Backhaul子帧的下行控制信息的指示对存储的数据进行处理。  The data in the data field of the downlink Backhaul subframe is directly stored in the data field of the downlink Backhaul subframe. After the downlink control information of the downlink Backhaul subframe is obtained, the downlink control information of the downlink Backhaul subframe is stored according to the indication of the downlink control information of the downlink Backhaul subframe. The data is processed.
实施例 1  Example 1
第二类中继网络中， 如图 12所示， 有三个相邻的中继下行子帧依次为 下行 Access子帧、 下行 Backhaul子帧和下行 Access子帧。 其中子帧 2控 制域的前 3个 OFDM符号被配置为保护间隔， 则第二类中继站无法在子帧 2的控制域上接收 PDCCH, 按照本发明所述方法， 将子帧 2的数据域相应 的下行控制信息设置在所述子帧 2 的数据域上， 可以保证第二类中继站正 常接收并处理子帧 2上的数据信息。 In the second type of relay network, as shown in FIG. 12, three adjacent relay downlink subframes are a downlink Access subframe, a downlink Backhaul subframe, and a downlink Access subframe. The first three OFDM symbols of the subframe 2 control domain are configured as guard intervals, and the second type of relay station cannot receive the PDCCH on the control domain of the subframe 2, and the data field of the subframe 2 is corresponding according to the method of the present invention. The downlink control information is set in the data field of the subframe 2, and the second type of relay station can be guaranteed The data information on subframe 2 is often received and processed.
针对上述数据域相应的中继下行控制信息而言， 一般来说， 数据域总 是对应着一组针对该数据域的下行控制信息， 这些信息中包括了相应数据 域信息的时频位置、 调制方式、 编码速率、 进程号等等， 接收端 （如： 第 二类中继站 )根据这些下行控制信息的指示来对相应的数据域信息进行接 收和处理。  For the corresponding relay downlink control information of the foregoing data domain, generally, the data domain always corresponds to a group of downlink control information for the data domain, and the information includes the time-frequency location and modulation of the corresponding data domain information. The mode, the coding rate, the process number, and the like, the receiving end (eg, the second type of relay station) receives and processes the corresponding data domain information according to the indication of the downlink control information.
本发明描述的数据信息进行处理， 包括进行解调、 解码等， 接收端处 理过程， 是现有技术， 本文不再进行描述。  The processing of the data information described in the present invention includes performing demodulation, decoding, etc., and the receiving end processing process is prior art and will not be described herein.
实施例 2  Example 2
第二类中继网络中， 如图 13所示， 有三个相邻的中继下行子帧依次为 下行 Backhaul子帧、 下行 Access子帧和下行 Backhaul子帧。 其中子帧 3 的前 3个 OFDM符号被配置为保护间隔， 则第二类中继站无法在子帧 3的 控制域上接收 PDCCH, 按照本发明所述方法， 将子帧 3的数据域相应的下 行控制信息设置在之前的子帧 1 的数据域上或控制域， 第二类中继站按照 子帧 1上接收并获取的中继下行控制信息来接收并处理子帧 3数据域上的 相关数据信息， 可以保证子帧 3上的数据信息被正常接收并处理。  In the second type of relay network, as shown in FIG. 13, three adjacent downlink sub-frames are downlink backhaul subframes, downlink access subframes, and downlink Backhaul subframes. The first three OFDM symbols of the subframe 3 are configured as guard intervals, and the second type of relay station cannot receive the PDCCH on the control field of the subframe 3. According to the method of the present invention, the data field of the subframe 3 is correspondingly downlinked. The control information is set on the data field of the previous subframe 1 or the control domain, and the second type of relay station receives and processes the related data information on the data domain of the subframe 3 according to the relay downlink control information received and acquired on the subframe 1. It can be ensured that the data information on the subframe 3 is normally received and processed.
针对上述相关数据信息而言 （即与所获取的控制信息相对应的数据信 息）， 因为数据域是一个比较大的概念， 数据域上有很多分属于不同接收端 (如： 第二类中继站或用户） 的数据， 而这些数据中属于本实施例所述第 二类中继站的数据信息；  For the above related data information (that is, the data information corresponding to the acquired control information), because the data domain is a relatively large concept, many of the data domains belong to different receiving ends (for example: the second type of relay station or Data of the user, and the data belonging to the second type of relay station described in this embodiment;
如果子帧 3 下行控制信息的信息量比较大， 还可以扩展另一种形式， 即其他下行 Backhaul子帧在该下行 Backhaul子帧之前时， 第二类中继站在 其他下行 Backhaul子帧任意一个子帧控制域或数据域没有足够的资源用于 所述下行控制信令的传输时， 可将其同时配置在控制域和数据域上； 即可 以同时设置在之前的子帧 1 的控制域和数据域， 并且在子帧 1的控制域和 数据域接收并获取该下行 Backhaul子帧的下行控制信息。 If the amount of downlink control information of the subframe 3 is relatively large, another form may be extended, that is, when other downlink Backhaul subframes are before the downlink Backhaul subframe, the second type of relay station is any subframe of other downlink Backhaul subframes. When the control domain or the data domain does not have sufficient resources for the transmission of the downlink control signaling, it may be simultaneously configured on the control domain and the data domain; that is, the control domain and the data domain of the previous subframe 1 may be simultaneously set. And in the control field of subframe 1 and The data domain receives and acquires downlink control information of the downlink Backhaul subframe.
实施例 3  Example 3
第二类中继网络中， 如图 14所示， 有三个相邻的中继下行子帧依次为 下行 Access子帧、 下行 Backhaul子帧和下行 Backhaul子帧。 其中子帧 2 控制域的前 3个 OFDM符号被配置为保护间隔， 则第二类中继站无法在子 帧 2的控制域上接收 PDCCH, 按照本发明所述方法， 将子帧 2的数据域相 应的下行控制信息设置在之后的子帧 3的控制域或数据域。  In the second type of relay network, as shown in FIG. 14, three adjacent relay downlink subframes are a downlink access subframe, a downlink Backhaul subframe, and a downlink Backhaul subframe. The first three OFDM symbols of the subframe 2 control domain are configured as guard intervals, and the second type of relay station cannot receive the PDCCH on the control domain of the subframe 2, and the data field of the subframe 2 is corresponding according to the method of the present invention. The downlink control information is set in the control field or data field of the subsequent subframe 3.
第二类中继站先将子帧 2 的数据域上的全部数据或指定的部分数据都 接收并存储起来， 在子帧 3 的控制域上接收并获取到相应的下行控制信息 之后， 按照控制信息的指示对存储的数据进行处理， 可以保证第二类中继 站对子帧 2上数据信息的正常接收和处理。  The second type of relay station first receives and stores all the data or the specified part of the data in the data field of the subframe 2, and after receiving and acquiring the corresponding downlink control information in the control domain of the subframe 3, according to the control information Instructing to process the stored data ensures that the second type of relay station normally receives and processes the data information on the subframe 2.
需要说明的是， 这种场景下， 因为第二类中继站需要在尚未获得控制 信息时先接收数据信息， 因此， 第二类中继站不能按照正常情况根据控制 信息的指示选择属于自己的数据进行接收并处理， 此时只能把整个带宽或 者预先指定带宽上的数据先接收并保存下来， 不作处理 （因为没有控制信 息无法处理；)， 等到在后一个子帧收到控制信息以后再处理之前保存下来的 数据。  It should be noted that, in this scenario, because the second type of relay station needs to receive the data information first when the control information is not obtained, the second type of relay station cannot select its own data according to the indication of the control information according to the normal situation and receive the data. Processing, at this time, only the entire bandwidth or data on the pre-specified bandwidth can be received and saved first, and no processing is performed (because there is no control information that cannot be processed;), until the next sub-frame receives the control information and then saves it before processing. The data.
如果子帧 2 下行控制信息的信息量比较大， 还可以扩展另一种形式， 即子帧 2下行 Backhaul子帧下一个下行 Backhaul子帧的的控制域和数据域 没有足够的资源用于所述下行控制信令的传输时，可将子帧 2下行 Backhaul 子帧下行控制信息同时配置在子帧 3控制域和数据域上， 并且在子帧 3控 制域和数据域接收并获取该下行 Backhaul子帧的下行控制信息。  If the information amount of the downlink control information of the subframe 2 is relatively large, another form may be extended, that is, the control domain and the data domain of the downlink downlink backhaul subframe of the subframe 2 downlink Backhaul subframe do not have sufficient resources for the When the downlink control signaling is transmitted, the downlink backhaul subframe downlink control information of the subframe 2 may be simultaneously configured in the subframe 3 control domain and the data domain, and the downlink Backhaul sub is received and acquired in the subframe 3 control domain and the data domain. Downlink control information of the frame.
实施例 4  Example 4
如图 15所示， 本发明还提供一种第二类中继站网络中的基站， 包括配 置模块和发送模块。其中， 配置模块，用于当第二类中继站一下行 Backhaul 子帧控制域被配置为保护间隔时， 将该下行 Backhaul子帧数据域相应的下 行控制信息配置在该下行 Backhaul子帧的数据域中， 或指定（如： 基站等 功能实体指定 ) 的其他任意一下行 Backhaul子帧的控制域和 /或数据域中； 发送模块则能够发送完成配置的所述下行控制信息。 As shown in FIG. 15, the present invention further provides a base station in a second type of relay station network, including a configuration module and a sending module. Among them, the configuration module is used when the second type of relay station is backhaul Backhaul When the subframe control field is configured as the guard interval, the downlink control information corresponding to the downlink Backhaul subframe data field is configured in the data field of the downlink Backhaul subframe, or other arbitrary (eg, specified by a functional entity such as a base station) a control domain and/or a data domain of a downlink Backhaul subframe; the sending module is configured to send the downlink control information that is configured.
其中， 所述配置模块包括： 第一设置处理模块、 第二设置处理模块、 第三设置处理模块，  The configuration module includes: a first setting processing module, a second setting processing module, and a third setting processing module,
所述第一设置处理模块， 用于将控制域被配置为保护间隔的所述下行 Backhaul子帧数据域相应的下行控制信息配置在该下行 Backhaul子帧的数 据域中；  The first setting processing module is configured to configure, in the data field of the downlink Backhaul subframe, the downlink control information of the downlink Backhaul subframe data field in which the control domain is configured as a guard interval;
第二设置处理模块； 用于当所述其他下行 Backhaul子帧在控制域被配 置为保护间隔的所述下行 Backhaul子帧之前时， 将控制域被配置为保护间 隔的所述下行 Backhaul子帧数据域相应的下行控制信息， 配置在所述其他 下行 Backhaul子帧任意一个子帧控制域和 /或数据域中；  a second setting processing module, configured to: when the other downlink Backhaul subframes are in front of the downlink Backhaul subframe in which the control domain is configured as a guard interval, configure the control region as the downlink Backhaul subframe data of the guard interval The corresponding downlink control information of the domain is configured in any one of the subframe control domain and/or the data domain of the other downlink Backhaul subframes;
第三设置处理模块； 用于当所述其他下行 Backhaul子帧在控制域被配 置为保护间隔的所述下行 Backhaul子帧之后时， 将控制域被配置为保护间 隔的所述下行 Backhaul子帧数据域相应的下行控制信息， 配置在控制域被 配置为保护间隔的所述下行 Backhaul子帧的下一个下行 Backhaul子帧控制 域和 /或数据域中。  a third setting processing module, configured to: when the other downlink Backhaul subframes are behind the downlink Backhaul subframe in which the control region is configured as a guard interval, configure the control region as the downlink Backhaul subframe data of the guard interval The corresponding downlink control information of the domain is configured in a next downlink Backhaul subframe control domain and/or a data domain of the downlink Backhaul subframe in which the control domain is configured as a guard interval.
如图 16所示， 本发明还提供一种第二类中继站， 包括接收模块。其中， 接收模块， 用于当第二类中继站一下行 Backhaul子帧数据域相应的下行控 制信息被配置在该下行 Backhaul子帧的数据域中或指定（如： 基站等功能 实体指定）的其他任意一下行 Backhaul子帧的控制域和 /或数据域中时， 对 所述下行 backhaul子帧数据域相应的下行控制信息进行接收。  As shown in FIG. 16, the present invention further provides a second type of relay station, including a receiving module. The receiving module is configured to: when the second type of relay station performs the downlink control information of the Backhaul subframe data field, the downlink control information is configured in the data field of the downlink Backhaul subframe or specified by other functional entities (such as a base station and other functional entities) When the control field and/or the data field of the downlink Backhaul subframe is in a downlink, the downlink control information corresponding to the downlink backhaul subframe data field is received.
其中，所述第二类中继站为没有独立的小区 ID ,不发送 CRS和 PDCCH , 并且在传输过程中至少对 Release 8的用户来说是一个透明的节点。 其中， 所述接收模块包括： 第四设置处理模块、 第五设置处理模块、 第六设置处理模块， The second type of relay station does not have an independent cell ID, does not send CRS and PDCCH, and is at least a transparent node to the user of Release 8 in the transmission process. The receiving module includes: a fourth setting processing module, a fifth setting processing module, and a sixth setting processing module,
所述第四设置处理模块， 用于在所述该下行 Backhaul子帧的数据域中 接收所述下行 backhaul子帧数据域相应的下行控制信息；  The fourth setting processing module is configured to receive downlink control information corresponding to the downlink backhaul subframe data field in a data domain of the downlink Backhaul subframe;
第五设置处理模块； 用于在所述其他下行 Backhaul子帧任意一个子帧 控制域和 /或数据域中接收所述下行 backhaul子帧数据域相应的下行控制信 息；  And a fifth setting processing module, configured to receive downlink control information corresponding to the downlink backhaul subframe data field in any one of the other downlink backhaul subframes and/or the data domain;
第六设置处理模块； 用于在控制域被配置为保护间隔的所述下行 Backhaul子帧的下一个下行 Backhaul子帧控制域和 /或数据域中接收所述下 行 backhaul子帧数据域相应的下行控制信息。  a sixth setting processing module, configured to receive, in a next downlink Backhaul subframe control domain and/or a data domain of the downlink Backhaul subframe in which the control domain is configured as a guard interval, a downlink corresponding to the downlink backhaul subframe data domain Control information.
进一步的， 所述第六设置处理模块还用于在控制域被配置为保护间隔 的所述下行 Backhaul子帧的数据域上接收全部数据或指定的部分数据， 并 直接存储， 在获取到控制域被配置为保护间隔的所述下行 Backhaul子帧的 下行控制信息后， 依据该下行控制信息的指示对存储的数据进行处理。  Further, the sixth setting processing module is further configured to receive all data or specified partial data on a data field of the downlink Backhaul subframe in which the control domain is configured as a guard interval, and directly store the control domain. After the downlink control information of the downlink Backhaul subframe is configured to be guarded, the stored data is processed according to the indication of the downlink control information.
需要说明的是， 上述方法和装置所涉及的内容， 除了可以应用于第二 类中继站以外， 还可以应用于其它的基站等能够进行下行控制信息处理的 装置， 只要当下行 Backhaul子帧控制域被配置为保护间隔时， 该装置能够 将下行 Backhaul子帧数据域相应的下行控制信息配置在指定的其他任意一 下行 Backhaul子帧中或配置在该下行 Backhaul子帧数据域中即可。 的精神实质和方法范围的任何修改或局部替换， 其均涵盖在本发明的权利 要求范围当中。  It should be noted that the content of the above method and apparatus can be applied to other base stations and other devices capable of downlink control information processing, as long as the downlink Backhaul subframe control domain is used. When configured as a guard interval, the device can configure the downlink control information of the downlink Backhaul subframe data field in the specified other downlink backhaul subframe or in the downlink Backhaul subframe data domain. Any modifications or partial substitutions of the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

权利要求书 Claim
1、 一种下行控制信息发送方法， 其特征在于， 所述方法包括： 当下行 Backhaul 子帧控制域被配置为保护间隔时， 将所述下行 A method for transmitting downlink control information, where the method includes: when a downlink Backhaul subframe control domain is configured as a guard interval, the downlink is
Backhaul子帧数据域相应的下行控制信息配置在该下行 Backhaul子帧的数 据域中， 或指定的其他下行 Backhaul子帧中， 并进行发送。 The downlink control information corresponding to the Backhaul subframe data field is configured in the data field of the downlink Backhaul subframe, or in other specified downlink Backhaul subframes, and is transmitted.
2、 根据权利要求 1所述的方法， 其特征在于， 将所述下行控制信息配 置在所述其他下行 Backhaul 子帧中的具***置为： 在所述其他下行 Backhaul子帧的控制域和 /或数据域中。  The method according to claim 1, wherein the specific location of the downlink control information in the other downlink Backhaul subframe is: in a control domain of the other downlink Backhaul subframes and/or In the data domain.
3、 根据权利要求 2所述的方法， 其特征在于， 配置所述下行控制信息 的功能实体为第二类中继站网络中的基站和第二类中继站， 所述第二类中 继站没有独立的小区 ID, 不发送小区参考信号 CRS 和物理下行控制信道 PDCCH , 并且在传输过程中至少对 3GPP Release 8的用户透明。  The method according to claim 2, wherein the functional entity configuring the downlink control information is a base station and a second type of relay station in the second type of relay station network, and the second type of relay station does not have an independent cell ID. The cell reference signal CRS and the physical downlink control channel PDCCH are not transmitted, and are transparent to at least users of the 3GPP Release 8 during transmission.
4、 根据权利要求 1或 3所述的方法， 其特征在于， 所述方法还包括： 当所述下行 Backhaul子帧数据域相应的下行控制信息被配置在该下行 The method according to claim 1 or 3, wherein the method further comprises: when downlink control information corresponding to the downlink Backhaul subframe data field is configured in the downlink
Backhaul子帧的数据域中时， 在所述数据域中获取相应的下行控制信息。 When the data field of the subframe is backhaul, the corresponding downlink control information is obtained in the data domain.
5、 根据权利要求 1至 3任一项所述的方法， 其特征在于， 所述方法还 包括：  The method according to any one of claims 1 to 3, wherein the method further comprises:
在所述其他下行 Backhaul子帧在控制域被配置为保护间隔的所述下行 Backhaul子帧之前， 在所述其他下行 Backhaul子帧控制域和 /或数据域中， 接收并获取控制域被配置为保护间隔的所述下行 Backhaul子帧的下行控制 信息。  Before the other downlink Backhaul subframes are configured in the control domain as the guard interval of the downlink Backhaul subframe, in the other downlink Backhaul subframe control domain and/or data domain, the receive and acquire control domain is configured as The downlink control information of the downlink Backhaul subframe of the guard interval.
6、 根据权利要求 1至 3任一项所述的方法， 其特征在于， 所述方法还 包括：  The method according to any one of claims 1 to 3, wherein the method further comprises:
在所述其他下行 Backhaul子帧在控制域被配置为保护间隔的所述下行 Backhaul子帧之后， 在控制域被配置为保护间隔的所述下行 Backhaul子帧 的下一个下行 Backhaul子帧控制域或 /和数据域中，接收并获取控制域被配 置为保护间隔的所述下行 Backhaul子帧的下行控制信息。 After the downlink Backhaul subframe is configured as a guard interval of the downlink Backhaul subframe, the downlink Backhaul subframe configured as a guard interval in the control region The next downlink Backhaul subframe control domain or/and the data domain receives and acquires downlink control information of the downlink Backhaul subframe in which the control domain is configured to guard the interval.
7、 根据权利要求 6所述的方法， 其特征还在于， 所述方法还包括： 接收控制域被配置为保护间隔的所述下行 Backhaul子帧的数据域全部 数据或指定的部分数据并存储， 在获取到该下行 Backhaul子帧的下行控制 信息后， 依据获取的下行控制信息对存储的所述数据进行处理。  The method according to claim 6, further comprising: receiving, by the control domain, all data or specified partial data of the data field of the downlink Backhaul subframe of the guard interval, and storing, After obtaining the downlink control information of the downlink Backhaul subframe, the stored data is processed according to the acquired downlink control information.
8、 一种下行控制信息发送装置， 其特征在于， 该装置包括： 配置模块、 发送模块； 其中，  A device for transmitting a downlink control information, the device comprising: a configuration module, a sending module, wherein
所述配置模块，用于当下行 Backhaul子帧控制域被配置为保护间隔时， 将该下行 Backhaul子帧数据域相应的下行控制信息配置在指定的其他下行 Backhaul子帧中；  The configuration module is configured to: when the downlink Backhaul subframe control domain is configured as a guard interval, configure downlink control information corresponding to the downlink Backhaul subframe data field in the specified other downlink Backhaul subframes;
所述发送模块， 用于发送完成配置的所述下行控制信息。  The sending module is configured to send the downlink control information that is configured.
9、 根据权利要求 8所述的装置， 其特征在于， 所述装置还包括接收模 块， 用于接收下行控制信息； 所述配置模块和发送模块设置于基站中， 所 述接收模块设置于第二类中继站中，所述第二类中继站没有独立的小区 ID, 不发送 CRS和 PDCCH,并且在传输过程中至少对 3GPP Release 8的用户透 明。  The device according to claim 8, wherein the device further comprises: a receiving module, configured to receive downlink control information; the configuration module and the sending module are disposed in the base station, and the receiving module is disposed in the second In the class relay station, the second type of relay station does not have an independent cell ID, does not transmit CRS and PDCCH, and is transparent to at least users of 3GPP Release 8 during transmission.
10、 根据权利要求 8或 9所述的装置， 其特征在于， 所述配置模块包 括： 第一设置处理模块、 第二设置处理模块和第三设置处理模块； 其中， 所述第一设置处理模块， 用于将控制域被配置为保护间隔的所述下行 Backhaul子帧数据域相应的下行控制信息配置在该下行 Backhaul子帧的数 据域中；  The device according to claim 8 or 9, wherein the configuration module comprises: a first setting processing module, a second setting processing module, and a third setting processing module; wherein the first setting processing module The downlink control information corresponding to the downlink backhaul subframe data field configured to be configured as a guard interval is configured in a data field of the downlink Backhaul subframe;
第二设置处理模块， 用于在所述其他下行 Backhaul子帧在控制域被配 置为保护间隔的所述下行 Backhaul子帧之前， 将控制域被配置为保护间隔 的所述下行 Backhaul子帧数据域相应的下行控制信息， 配置在指定的其他 下行 Backhaul子帧控制域和 /或数据域中； a second setting processing module, configured to: after the downlink Backhaul subframe of the other downlink Backhaul subframe is configured as a guard interval, the control domain is configured as a downlink Backhaul subframe data field of the guard interval Corresponding downlink control information, configured in the specified other Downstream Backhaul subframe control domain and/or data domain;
第三设置处理模块， 用于在所述其他下行 Backhaul子帧在控制域被配 置为保护间隔的所述下行 Backhaul子帧之后， 将控制域被配置为保护间隔 的所述下行 Backhaul子帧数据域相应的下行控制信息， 配置在控制域被配 置为保护间隔的所述下行 Backhaul子帧的下一个下行 Backhaul子帧控制域 和 /或数据域中。  a third setting processing module, configured to: after the downlink Backhaul subframe of the other downlink Backhaul subframe is configured as a guard interval, the control domain is configured as a downlink Backhaul subframe data field of the guard interval Corresponding downlink control information is configured in a next downlink Backhaul subframe control domain and/or a data domain of the downlink Backhaul subframe in which the control domain is configured as a guard interval.
11、 根据权利要求 8或 9所述的装置， 其特征在于， 所述接收模块进 一步包括： 第四设置处理模块、 第五设置处理模块和第六设置处理模块； 其中，  The device according to claim 8 or 9, wherein the receiving module further comprises: a fourth setting processing module, a fifth setting processing module, and a sixth setting processing module;
所述第四设置处理模块， 用于在所述该下行 Backhaul子帧的数据域中 接收所述下行 backhaul子帧数据域相应的下行控制信息；  The fourth setting processing module is configured to receive downlink control information corresponding to the downlink backhaul subframe data field in a data domain of the downlink Backhaul subframe;
第五设置处理模块， 用于在所述其他下行 Backhaul子帧任意一个子帧 控制域和 /或数据域中接收所述下行 backhaul子帧数据域相应的下行控制信 息；  a fifth setting processing module, configured to receive downlink control information corresponding to the downlink backhaul subframe data field in any subframe control domain and/or data domain of the other downlink Backhaul subframes;
第六设置处理模块， 用于在控制域被配置为保护间隔的所述下行 Backhaul子帧的下一个下行 Backhaul子帧控制域和 /或数据域中接收所述下 行 backhaul子帧数据域相应的下行控制信息。  a sixth setting processing module, configured to receive, in the next downlink Backhaul subframe control domain and/or the data domain of the downlink Backhaul subframe in which the control domain is configured as a guard interval, the downlink of the downlink backhaul subframe data domain Control information.
12、 根据权利要求 11所述的装置， 其特征在于， 所述第六设置处理模 块还用于在控制域被配置为保护间隔的所述下行 Backhaul子帧的数据域上 接收全部数据或指定的部分数据， 并直接存储， 在获取到控制域被配置为 保护间隔的所述下行 Backhaul子帧的下行控制信息后， 依据该下行控制信 息的指示对存储的数据进行处理。  The device according to claim 11, wherein the sixth setting processing module is further configured to receive all data or a specified data on a data field of the downlink Backhaul subframe in which the control domain is configured as a guard interval. The partial data is directly stored, and after the downlink control information of the downlink Backhaul subframe in which the control domain is configured as the guard interval is obtained, the stored data is processed according to the indication of the downlink control information.
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