WO2015043153A1 - Method for transmitting control signalling and base station - Google Patents

Method for transmitting control signalling and base station Download PDF

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Publication number
WO2015043153A1
WO2015043153A1 PCT/CN2014/074872 CN2014074872W WO2015043153A1 WO 2015043153 A1 WO2015043153 A1 WO 2015043153A1 CN 2014074872 W CN2014074872 W CN 2014074872W WO 2015043153 A1 WO2015043153 A1 WO 2015043153A1
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WIPO (PCT)
Prior art keywords
control signaling
terminal
information
uplink
base station
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Application number
PCT/CN2014/074872
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French (fr)
Chinese (zh)
Inventor
曹一卿
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2015043153A1 publication Critical patent/WO2015043153A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469Two-way operation using the same type of signal, i.e. duplex using time-sharing

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method for transmitting control signaling and a base station. Background technique
  • the present invention is based on the above problems, and proposes a new technical solution, which enables terminals in a cell to directly obtain uplink and downlink configuration information from a common search space without separately transmitting to each terminal individually, which helps to reduce The number of signaling transmissions reduces the overhead of the control channel.
  • the present invention provides a method for transmitting control signaling, including: a base station generates common control signaling, where the common control signaling includes uplink and downlink configuration information, and the common control signaling is placed in a public In the search space; transmitting the common control signaling.
  • control signaling is often transmitted in a PDCCH (Physical Downlink Control Channel) or an E-PDCCH (Enhanced Physical Downlink Control Channel), and is classified into a common search space and in accordance with a blind detection method.
  • Dedicated search space By placing the common control signaling in the common search space, all or a specified part of the terminal can obtain the uplink and downlink configuration information from it, without having to transmit, which helps reduce signaling interaction and reduce the overhead of the control channel.
  • the uplink and downlink configuration information in the common control signaling is located in the downlink control information with the sequence number 3 or 3A.
  • downlink control information (DCI, Downlink Control Information) with sequence number 3 or 3A is used to transmit TPC (Transmission Power Control) power control parameters, but there are often not many terminals in the cell. At the same time, it requires power control, so there are often some idle bits in the downlink control information with sequence number 3 or 3A.
  • DCI Downlink Control Information
  • TPC Transmission Power Control
  • idle bits in the downlink control information with sequence number 3 or 3A.
  • the method further includes: the base station separately scrambling the uplink and downlink configuration information and other information in the common control signaling by using different radio network temporary identifiers (RNTIs) .
  • RNTIs radio network temporary identifiers
  • the terminal needs to determine whether the currently received data is the information actually needed by itself by means of blind detection. For example, by setting a corresponding radio network temporary identifier (such as RNTI) for different information, and using the RNTI to scramble the corresponding information, if the terminal can use the same RNTI to descramble the received data, This data is the information required by the terminal. Therefore, the RNTI corresponding to the uplink and downlink configuration information needs to be distinguished from the RNTI corresponding to the other information in the signaling, so that the terminal can accurately know whether the currently received uplink/downlink configuration information is received.
  • the RNTI corresponding to the uplink and downlink configuration information may be a newly designed RNTI, or may be an existing RNTI, but can be the same in the same signaling. The RNTI corresponding to his information is different.
  • the method further includes: dividing the service terminal of the base station into multiple user groups; wherein, the common control signaling includes uplink and downlink configurations respectively corresponding to each user group information.
  • the serving terminal of the base station refers to a terminal for which the base station provides services and performs data interaction, and groups the service terminals, and separately allocates uplink and downlink configuration information for each user group, so that the same cell can also be used. Use different uplink and downlink configuration information.
  • the service terminals corresponding to each micro cell can be set as one user group, because the micro cells are often far apart, have better interference isolation effect, and can bring greater throughput gain.
  • the method further includes: transmitting, by using a subframe with sequence numbers 0, 1, 5, and/or 6 to send the common control signaling.
  • the subframes with the sequence numbers 0, 1, 5, and 6 are all downlink subframes (the sequence number 1 is a special subframe, and the DwPTS is fixed to the downlink. It can be regarded as a downlink subframe. Therefore, when common control signaling is transmitted on these subframes, a relatively more stable transmission effect can be obtained, which helps to avoid interference. among them,
  • Subframes of sequence numbers 0, 1, 5, and/or 6 indicate that one, two, three, or all of the subframes from 0, 1, 5, and 6 are used for transmitting common control signaling.
  • the method further includes: when the terminal in the serving terminal of the base station has a terminal in a discontinuous reception (DRX) state, the transmitting method further includes: generating, by the base station, dedicated control signaling And the dedicated control signaling includes the uplink and downlink configuration information, and the dedicated control signaling is placed in a dedicated search space corresponding to the terminal in the discontinuous reception state; and the dedicated control signaling is sent.
  • DRX discontinuous reception
  • the uplink and downlink configuration information may be placed in the corresponding dedicated search for the terminal in the DRX state. In space, to ensure that it can receive uplink and downlink configuration information. Due to the limited number of terminals in the DRX state in the cell, with the cooperation of common control signaling, The number of signaling transmissions and the overhead of the control channel can still be effectively controlled.
  • the uplink and downlink configuration information in the dedicated control signaling is located in the downlink control information corresponding to the paging information or the resource allocation information.
  • the terminal in the DRX state mainly monitors the downlink paging information and the uplink resource allocation information
  • the DRX corresponding to the DRX may be added in the downlink control information corresponding to the paging information or the resource allocation information.
  • the uplink and downlink configuration information of the terminal in the state so that all terminals in the cell can receive uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
  • the transmitting method further includes: generating periodic configuration signaling, where the periodic configuration signaling includes a period The configuration information, the period configuration information is used to configure a listening period of the terminal in the discontinuous receiving state, so that the terminal in the discontinuous receiving state receives the common control signaling in the listening period;
  • the terminal in the discontinuous reception state transmits the above-mentioned periodic configuration signaling.
  • the terminal in the DRX state enters a normal state and receives information within a set time interval, and thus the monitoring period of the terminal configured in the DRX state is made within a time interval in which the base station transmits the common control signaling.
  • the monitoring is performed so that all terminals in the cell can receive uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
  • the present invention also provides a base station, including: a data processing module, configured to generate common control signaling, where the common control signaling includes uplink and downlink configuration information, and the public control signaling is placed in a common search. In the space; a data interaction module, configured to send the common control signaling.
  • control signaling is often transmitted in a PDCCH (Physical Downlink Control Channel) or an E-PDCCH (Enhanced Physical Downlink Control Channel), and is classified into a common search space and in accordance with a blind detection method.
  • Dedicated search space The common control signaling is placed in the common search space, so that all or a part of the specified terminals can obtain the uplink and downlink configuration information, without sending, which helps reduce signaling interaction and reduce the overhead of the control channel.
  • the uplink and downlink configuration information in the common control signaling is located in the downlink control information with the sequence number 3 or 3A.
  • downlink control information (DCI, Downlink Control Information) with sequence number 3 or 3A is used to transmit TPC (Transmission Power Control) power control parameters, but there are often not many terminals in the cell. At the same time, it requires power control, so there are often some idle bits in the downlink control information with sequence number 3 or 3A.
  • DCI Downlink Control Information
  • TPC Transmission Power Control
  • idle bits in the downlink control information with sequence number 3 or 3A.
  • the data processing module is further configured to: perform dynamic interference on the uplink and downlink configuration information and other information in the common control signaling by using different RNTIs.
  • the terminal needs to determine whether the currently received data is the information actually needed by itself by means of blind detection. For example, by setting a corresponding radio network temporary identifier (such as RNTI) for different information, and using the RNTI to scramble the corresponding information, if the terminal can use the same RNTI to descramble the received data, This data is the information required by the terminal. Therefore, the RNTI corresponding to the uplink and downlink configuration information needs to be distinguished from the RNTI corresponding to the other information in the signaling, so that the terminal can accurately know whether the current received uplink/downlink configuration information is received.
  • the RNTI corresponding to the uplink and downlink configuration information may be a newly designed RNTI, or may be an existing RNTI, but can be distinguished from an RNTI corresponding to other information in the same signaling.
  • the data processing module is further configured to: divide the service terminal of the base station into multiple user groups; where the common control signaling includes respectively corresponding to each Upstream and downlink configuration information of the user group.
  • the serving terminal of the base station refers to a terminal for which the base station provides services and performs data interaction, and groups the service terminals, and separately allocates uplink and downlink configuration information for each user group, so that the same cell can also be used.
  • the service terminals corresponding to each micro cell can be set as one user group, because the micro cells are often far apart, have better interference isolation effect, and can bring greater throughput gain.
  • the data interaction module is further configured to: send the common control signaling by using a subframe with sequence numbers 0, 1, 5, and/or 6.
  • the subframes with the sequence numbers 0, 1, 5, and 6 are all downlink subframes (the sequence number 1 is a special subframe, and the DwPTS is fixed to the downlink. It can be regarded as a downlink subframe. Therefore, when common control signaling is transmitted on these subframes, a relatively more stable transmission effect can be obtained, which helps to avoid interference. among them,
  • Subframes of sequence numbers 0, 1, 5, and/or 6 indicate that one, two, three, or all of the subframes from 0, 1, 5, and 6 are used for transmitting common control signaling.
  • the data processing module is further configured to: generate dedicated control signaling, the dedicated control signaling, when the terminal in the non-continuous receiving state exists in the serving terminal of the base station
  • the uplink and downlink configuration information is included, and the dedicated control signaling is placed in a dedicated search space corresponding to the terminal in the discontinuous reception state
  • the data interaction module is further configured to: send the dedicated control signal make.
  • the uplink and downlink configuration information may be placed in the corresponding dedicated search for the terminal in the DRX state. In space, to ensure that it can receive uplink and downlink configuration information. Due to the limited number of terminals in the DRX state in the small area, the number of signaling transmissions and the overhead of the control channel can be effectively controlled under the cooperation of common control signaling.
  • the uplink and downlink configuration information in the dedicated control signaling is located in the downlink control information corresponding to the paging information or the resource allocation information.
  • the terminal in the DRX state mainly monitors the downlink paging information and the uplink resource allocation information
  • the DRX corresponding to the DRX may be added in the downlink control information corresponding to the paging information or the resource allocation information.
  • the uplink and downlink configuration information of the terminal in the state so that all terminals in the cell can receive uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
  • the data processing module is further configured to: generate periodic configuration signaling, where the periodic configuration signaling includes periodic configuration information, where the periodic configuration information is used for a terminal that is in a discontinuous receiving state.
  • the monitoring period is configured to enable the terminal in the discontinuous reception state to receive the common control signaling in the listening period;
  • the data interaction module is further configured to: send the foregoing to the terminal in the discontinuous receiving state Periodic configuration signaling.
  • the terminal in the DRX state enters a normal state and receives information within a set time interval, and thus the monitoring period of the terminal configured in the DRX state is made within a time interval in which the base station transmits the common control signaling.
  • the monitoring is performed so that all terminals in the cell can receive uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
  • the terminals in the cell can obtain the uplink and downlink configuration information directly from the common search space without separately transmitting to each terminal separately, which helps reduce the number of signaling transmissions and reduces the overhead of the control channel.
  • FIG. 1 is a schematic structural view showing seven radio frames in a TDD system defined in the related art
  • FIG. 2 is a schematic flow chart showing a method of transmitting control signaling according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram showing sending uplink and downlink configuration information to a DRX terminal according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram showing sending uplink and downlink configuration information to a DRX terminal according to another embodiment of the present invention.
  • FIG. 5 shows a schematic block diagram of a base station in accordance with an embodiment of the present invention. detailed description
  • the present invention proposes a technical solution for transmitting uplink and downlink configuration information through signaling transmission.
  • there are different processing modes for terminals in different states in the cell which will be described in detail below.
  • FIG. 2 shows a schematic flow chart of a transmission method of control signaling according to an embodiment of the present invention.
  • a method for transmitting control signaling includes: a base station generates common control signaling, where the common control signaling includes uplink and downlink configuration information, and the common control signaling is Placed in a common search space; send the common control signaling.
  • control signaling is often transmitted in a PDCCH (Physical Downlink Control Channel) or an E-PDCCH (Enhanced Physical Downlink Control Channel), and is classified into a common search space and in accordance with a blind detection method.
  • Dedicated search space By placing the common control signaling in the common search space, all or a specified part of the terminal can obtain the uplink and downlink configuration information from it, without having to transmit, which helps reduce signaling interaction and reduce the overhead of the control channel.
  • uplink and downlink configuration information it can be transmitted in multiple ways, such as:
  • the above uplink and downlink configuration information is placed in the downlink control information with the sequence number 3 or 3A.
  • the downlink control information (DCI, Downlink Control Information) with sequence number 3 or 3A is used to transmit TPC (Transmission Power Control) power control parameters, but because there are not many terminals working in the cell at the same time and power control is required. Therefore, there are often some idle bits in the downlink control information with sequence number 3 or 3A.
  • DCI Format 3/3A 44 bits, which is the downlink control information with the serial number 3 or 3A mentioned above
  • DCI Format 1 55 bits
  • RNTIs radio network temporary identifiers
  • the uplink and downlink configuration information and other information may be used. Perform scrambling.
  • This solution involves the blind detection process of the terminal.
  • the terminal needs to determine whether the currently received data is actually required by the blind detection mode, for example, by setting a corresponding wireless network temporary identifier (such as RNTI) for different information, and using the RNTI pair. Corresponding information is scrambled. If the terminal can descramble the received data using the same RNTI, it indicates that the data is the information required by the terminal. Therefore, the RNTI corresponding to the uplink and downlink configuration information needs to be distinguished from the RNTI corresponding to the other information in the signaling, so that the terminal can accurately know whether the currently received uplink/downlink configuration information is received.
  • RNTI wireless network temporary identifier
  • the RNTI corresponding to the uplink and downlink configuration information can exist in various forms: 1) Currently, many different RNTIs have been set for different control information, because only some control information is included in the DCI Format 3/3A, so that only Selecting from the existing RNTI and ensuring that the selected RNTI is different from the RNTI corresponding to the control information included in DCI Format 3/3A, can ensure that the terminal can effectively distinguish different information; 2) can also be designed A new RNTI is generated different from all existing RNTIs for scrambling and descrambling the uplink and downlink configuration information.
  • the method further includes: dividing the service terminal of the base station into multiple user groups; wherein, the common control signaling includes uplink and downlink configurations respectively corresponding to each user group information.
  • the serving terminal of the base station refers to a terminal for which the base station provides services and performs data interaction, and groups the service terminals, and separately allocates uplink and downlink configuration information for each user group, so that the same cell can also be used. Use different uplink and downlink configuration information.
  • the service terminals corresponding to each micro cell can be set as one user group, because the micro cells are often far apart, have better interference isolation effect, and can bring greater throughput gain.
  • the method further comprises: using the sequence numbers 0, 1, 5, and / The subframe of 6 or 6 transmits the common control signaling.
  • the subframes with the sequence numbers 0, 1, 5, and 6 are all downlink subframes (the sequence number 1 is a special subframe, and the DwPTS is fixed to the downlink. It can be regarded as a downlink subframe. Therefore, when common control signaling is transmitted on these subframes, a relatively more stable transmission effect can be obtained, which helps to avoid interference. among them,
  • Subframes of sequence numbers 0, 1, 5, and/or 6 indicate that one, two, three, or all of the subframes from 0, 1, 5, and 6 are used for transmitting common control signaling.
  • FIG. 3 shows a schematic diagram of transmitting uplink and downlink configuration information to a DRX terminal according to an embodiment of the present invention.
  • the base station generates dedicated control signaling, where the dedicated control signaling includes the uplink and downlink configuration information, and places the dedicated control signaling in a dedicated search space corresponding to the terminal in the discontinuous reception state;
  • the dedicated control signaling is sent.
  • the uplink and downlink configuration information is respectively placed in the common search space and the dedicated search space, thereby ensuring that all the terminals can receive the uplink and downlink configuration information corresponding to themselves.
  • the number of terminals in the DRX state in the cell is limited. Therefore, the number of signaling transmissions and the overhead of the control channel can be effectively controlled by the common control signaling.
  • the uplink and downlink configuration information in the dedicated control signaling is located in the downlink control information corresponding to the paging information or the resource allocation information.
  • the terminal in the DRX state mainly monitors the downlink paging information and the uplink resource allocation information
  • the DRX corresponding to the DRX may be added in the downlink control information corresponding to the paging information or the resource allocation information.
  • Upstream and downlink configuration information of the terminal in the state Therefore, all terminals in the cell can receive uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
  • FIG. 4 shows another implementation according to the present invention. A schematic diagram of sending uplink and downlink configuration information to a DRX terminal.
  • Base station side The base station sends uplink and downlink configuration information and other information in a preset time interval.
  • the D X Terminal side The DRX terminal alternates between the normal state and the DRX state according to the configured period.
  • the time window in which the DX terminal switches from the DRX state to the normal state may not match the time window in which the base station sends the uplink and downlink configuration information, and the terminal cannot receive the public search space.
  • Upstream and downstream configuration information may not match the time window in which the base station sends the uplink and downlink configuration information, and the terminal cannot receive the public search space.
  • the time window for the DRX terminal to switch from the DRX state to the normal state matches the time window of the uplink and downlink configuration information sent by the base station, and can just monitor the uplink and downlink placed in the common search space.
  • the configuration information is such that all terminals in the cell can sequentially obtain uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
  • FIG. 5 shows a schematic block diagram of a base station according to an embodiment of the present invention.
  • a base station 500 includes: a data processing module 502, configured to generate common control signaling, where the common control signaling includes uplink and downlink configuration information, and the common control The signaling is placed in a common search space; the data interaction module 504 is configured to send the common control signaling.
  • control signaling is often transmitted in a PDCCH (Physical Downlink Control Channel) or an E-PDCCH (Enhanced Physical Downlink Control Channel), and is classified into a common search space and in accordance with a blind detection method.
  • Dedicated search space Through public control The signaling is placed in the common search space, so that all or a part of the specified terminals can obtain the uplink and downlink configuration information, without the need to send, which helps reduce signaling interaction and reduce the overhead of the control channel.
  • the uplink and downlink configuration information in the common control signaling is located in the downlink control information with the sequence number 3 or 3A.
  • downlink control information (DCI, Downlink Control Information) with sequence number 3 or 3A is used to transmit TPC (Transmission Power Control) power control parameters, but there are often not many terminals in the cell. At the same time, it requires power control, so there are often some idle bits in the downlink control information with sequence number 3 or 3A.
  • DCI Downlink Control Information
  • TPC Transmission Power Control
  • idle bits in the downlink control information with sequence number 3 or 3A.
  • the data processing module 502 is further configured to: perform dynamic interference on the uplink and downlink configuration information and other information in the common control signaling by using different RNTIs.
  • the terminal needs to determine whether the currently received data is the information actually needed by itself by means of blind detection. For example, by setting a corresponding radio network temporary identifier (such as RNTI) for different information, and using the RNTI to scramble the corresponding information, if the terminal can use the same RNTI to descramble the received data, This data is the information required by the terminal. Therefore, the RNTI corresponding to the uplink and downlink configuration information needs to be distinguished from the RNTI corresponding to the other information in the signaling, so that the terminal can accurately know whether the current received uplink/downlink configuration information is received.
  • the RNTI corresponding to the uplink and downlink configuration information may be a newly designed RNTI, or may be an existing RNTI, but can be distinguished from an RNTI corresponding to other information in the same signaling.
  • the data processing module 502 is further configured to: divide the service terminal of the base station 500 into multiple user groups; where the common control signaling includes Up-and-down configuration information for each user group.
  • the serving terminal of the base station 500 refers to a terminal for which the base station 500 provides services and performs data interaction, by grouping the service terminals, and separately for each user group.
  • the downlink configuration information is configured so that different uplink and downlink configuration information can be used in the same cell.
  • the service terminals corresponding to each micro cell can be set as one user group, because the micro cells are often far apart, have better interference isolation effect, and can bring greater throughput gain.
  • the data interaction module 504 is further configured to: send the common control signaling by using a subframe with sequence numbers 0, 1, 5, and/or 6.
  • the subframes with the sequence numbers 0, 1, 5, and 6 are all downlink subframes (the sequence number 1 is a special subframe, and the DwPTS is fixed to the downlink. It can be regarded as a downlink subframe. Therefore, when common control signaling is transmitted on these subframes, a relatively more stable transmission effect can be obtained, which helps to avoid interference. among them,
  • Subframes of sequence numbers 0, 1, 5, and/or 6 indicate that one, two, three, or all of the subframes from 0, 1, 5, and 6 are used for transmitting common control signaling.
  • the data processing module 502 is further configured to: generate dedicated control signaling, where the dedicated control is generated, when the terminal in the serving terminal of the base station 500 is in a discontinuous receiving state.
  • the signaling includes the uplink and downlink configuration information, and the dedicated control signaling is placed in a dedicated search space corresponding to the terminal in the discontinuous reception state;
  • the data interaction module 504 is further configured to: send the Dedicated control signaling.
  • the uplink and downlink configuration information may be placed in the corresponding dedicated search for the terminal in the DRX state. In space, to ensure that it can receive uplink and downlink configuration information. Due to the limited number of terminals in the DRX state in the small area, the number of signaling transmissions and the overhead of the control channel can be effectively controlled under the cooperation of common control signaling.
  • the uplink and downlink configuration information in the dedicated control signaling is located in the downlink control information corresponding to the paging information or the resource allocation information.
  • the terminal in the DRX state mainly monitors the downlink paging information and the uplink resource allocation information
  • the paging information or the resource allocation information pair may be adopted.
  • the downlink control information the uplink and downlink configuration information of the terminal corresponding to the DRX state is added, so that all the terminals in the cell can receive the uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
  • the data processing module 502 is further configured to: generate periodic configuration signaling, the periodic configuration, when the terminal in the non-continuous receiving state exists in the serving terminal of the base station 500
  • the signaling includes periodic configuration information, where the periodic configuration information is used to configure a listening period of the terminal in the discontinuous receiving state, so that the terminal in the discontinuous receiving state receives the public control signal in the listening period.
  • the data interaction module 504 is further configured to: send the periodic configuration signaling to the terminal in the discontinuous reception state.
  • the terminal in the DRX state enters the normal state and receives the information in the set time interval, and thus the monitoring period of the terminal configured in the DRX state is used to send the common control signaling time interval in the base station 500.
  • the monitoring is performed internally, so that all terminals in the cell can receive uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
  • the present invention provides a method for transmitting control signaling and a base station, which can enable terminals in a cell to directly obtain uplink and downlink configuration information from a common search space. It is not necessary to separately send to each terminal separately, which helps to reduce the number of signaling transmissions and reduce the overhead of the control channel.

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Abstract

Provided is a method for transmitting a control signalling, comprising: generating, by a base station, a common control signalling which contains uplink and downlink configuration information, and placing the common control signalling in a common search space; and sending the common control signalling. Also proposed is a base station. The technical solution of the present invention can make a terminal in a cell acquire uplink and downlink configuration information directly from a common search space without sending same to each terminal respectively and separately, which helps reduce the number of times of transmitting signalling and reduce the overhead of control channels.

Description

控制信令的传输方法和基站  Control signaling transmission method and base station
技术领域  Technical field
本发明涉及无线通信技术领域, 具体而言, 涉及一种控制信令的传输 方法和一种基站。 背景技术  The present invention relates to the field of wireless communication technologies, and in particular, to a method for transmitting control signaling and a base station. Background technique
为了解决 TDD ( Time Division Duplex, 时分双工) 系统中上下行业 务不对称的问题, 在 3GPP el-8中共设计了 7种 DL-UL (下行-上行) 子 帧配置方式, 如图 1 所示, 分别为 Configuration (配置) 0到配置 6, 且 不同的配置中有不同的 DL、 UL子帧个数, 即包含的特殊子帧 102、 上行 子帧 104和下行子帧 106的数量不同, 以应对 TDD-LTE系统的不同业务 需求。  In order to solve the problem of uplink and downlink service asymmetry in the TDD (Time Division Duplex) system, seven DL-UL (downlink-uplink) subframe configurations are designed in 3GPP el-8, as shown in Figure 1. , Configuration 0 to Configuration 6, respectively, and different configurations have different numbers of DL and UL subframes, that is, the number of special subframes 102, uplink subframes 104, and downlink subframes 106 included is different. Address the different business needs of TDD-LTE systems.
相关技术中的研究显示, 在同一个地理区域内根据用户业务需求快速 改变上下行配置, 可以带来较大的吞吐量增益。 由于微小区常常相距较 远, 天然具有干扰隔离的效果, 因此这种增益在微小区中更为明显。 但是 在 Rel-8的设计中, 每 320ms只有一次更新配置的机会, 且运营商为了减 小邻小区的交叉干扰, 在一个区域通常釆用相同的上下行配置, 这显然无 法满足实际使用中对吞吐量的需求。  Research in the related art shows that rapidly changing the uplink and downlink configuration according to user service requirements in the same geographical area can bring about a large throughput gain. Since the microcells are often far apart and naturally have the effect of interfering with isolation, this gain is more pronounced in the microcells. However, in the design of Rel-8, there is only one opportunity to update the configuration every 320ms, and in order to reduce the cross interference of the neighboring cells, the operator usually uses the same uplink and downlink configuration in one area, which obviously cannot meet the actual use. The demand for throughput.
因此, 如何实现对上下行配置信息的合理传输, 使得每个小区都可以 方便地根据自己当前的业务量配置适合的 DL-UL 传输配置, 并且无需更 多的控制信道开销, 成为目前亟待解决的技术问题。 发明内容  Therefore, how to implement reasonable transmission of uplink and downlink configuration information, so that each cell can conveniently configure a suitable DL-UL transmission configuration according to its current traffic volume, and does not need more control channel overhead, which is currently to be solved. technical problem. Summary of the invention
本发明正是基于上述问题, 提出了一种新的技术方案, 可以使小区内 的终端都直接从公共搜索空间中获取上下行配置信息, 而无需分别向每个 终端单独发送, 有助于减少信令发送次数, 降低控制信道的开销。 有鉴于此, 本发明提出了一种控制信令的传输方法, 包括: 基站生成 公共控制信令, 所述公共控制信令中包含上下行配置信息, 并将所述公共 控制信令置于公共搜索空间中; 发送所述公共控制信令。 The present invention is based on the above problems, and proposes a new technical solution, which enables terminals in a cell to directly obtain uplink and downlink configuration information from a common search space without separately transmitting to each terminal individually, which helps to reduce The number of signaling transmissions reduces the overhead of the control channel. In view of the above, the present invention provides a method for transmitting control signaling, including: a base station generates common control signaling, where the common control signaling includes uplink and downlink configuration information, and the common control signaling is placed in a public In the search space; transmitting the common control signaling.
在该技术方案中, 控制信令往往是在 PDCCH (物理下行控制信道) 或是 E-PDCCH (增强的物理下行控制信道) 中传输, 并且为了配合盲检 测到方式, 又分为公共搜索空间和专用搜索空间。 其中, 通过将公共控制 信令置于公共搜索空间, 使得全部或指定的部分终端都可以从中获取上下 行配置信息, 无需——发送, 有助于减少信令交互, 降低控制信道的开 销。  In this technical solution, control signaling is often transmitted in a PDCCH (Physical Downlink Control Channel) or an E-PDCCH (Enhanced Physical Downlink Control Channel), and is classified into a common search space and in accordance with a blind detection method. Dedicated search space. By placing the common control signaling in the common search space, all or a specified part of the terminal can obtain the uplink and downlink configuration information from it, without having to transmit, which helps reduce signaling interaction and reduce the overhead of the control channel.
在上述技术方案中, 优选地, 所述公共控制信令中的上下行配置信息 位于序号为 3或 3A的下行控制信息中。  In the above technical solution, preferably, the uplink and downlink configuration information in the common control signaling is located in the downlink control information with the sequence number 3 or 3A.
在该技术方案中, 序号为 3 或 3A 的下行控制信息 (DCI, Downlink Control Information ) 用于传输 TPC ( Transmission Power Control , 传输功 率控制) 功率控制参数, 但由于小区内常常并没有那么多的终端同时工作 并需要功率控制, 因而序号为 3或 3A的下行控制信息中往往存在一些空 闲的比特位。 通过将上下行配置信息添加至上述的空闲比特位, 使得减少 了信令的发送次数, 以较小的信息结构改进, 实现了对上下行配置信息的 发送。  In this technical solution, downlink control information (DCI, Downlink Control Information) with sequence number 3 or 3A is used to transmit TPC (Transmission Power Control) power control parameters, but there are often not many terminals in the cell. At the same time, it requires power control, so there are often some idle bits in the downlink control information with sequence number 3 or 3A. By adding the uplink and downlink configuration information to the idle bits described above, the number of signaling transmissions is reduced, and the information structure is improved with a smaller information structure, and the uplink and downlink configuration information is transmitted.
在上述任一技术方案中, 优选地, 还包括: 所述基站分别使用不同的 无线网络临时标识 (RNTI ) , 对所述上下行配置信息和所述公共控制信 令中的其他信息进行加扰。  In any one of the foregoing technical solutions, the method further includes: the base station separately scrambling the uplink and downlink configuration information and other information in the common control signaling by using different radio network temporary identifiers (RNTIs) .
在该技术方案中, 终端需要通过盲检测的方式, 来确定当前接收到的 数据是否为自身实际所需的信息。 具体比如: 通过对不同的信息设置对应 的无线网络临时标识 (如 RNTI ) , 并使用该 RNTI 对相应的信息进行加 扰, 若终端能够使用相同的 RNTI对接收到的数据进行解扰, 则说明该数 据为终端所需的信息。 因此, 需要将上下行配置信息对应的 RNTI 与信令 中的其他信息对应的 RNTI 区分开来, 以便于终端能够准确地获知当前接 收到的是否为上下行配置信息。 具体地, 上下行配置信息对应的 RNTI 可 以为全新设计的 RNTI, 也可以为已有的 RNTI, 但能够与同一信令中的其 他信息对应的 RNTI相区别。 In this technical solution, the terminal needs to determine whether the currently received data is the information actually needed by itself by means of blind detection. For example, by setting a corresponding radio network temporary identifier (such as RNTI) for different information, and using the RNTI to scramble the corresponding information, if the terminal can use the same RNTI to descramble the received data, This data is the information required by the terminal. Therefore, the RNTI corresponding to the uplink and downlink configuration information needs to be distinguished from the RNTI corresponding to the other information in the signaling, so that the terminal can accurately know whether the currently received uplink/downlink configuration information is received. Specifically, the RNTI corresponding to the uplink and downlink configuration information may be a newly designed RNTI, or may be an existing RNTI, but can be the same in the same signaling. The RNTI corresponding to his information is different.
在上述任一技术方案中, 优选地, 还包括: 将所述基站的服务终端分 为多个用户组; 其中, 所述公共控制信令中包含有分别对应于每个用户组 的上下行配置信息。  In any one of the foregoing technical solutions, the method further includes: dividing the service terminal of the base station into multiple user groups; wherein, the common control signaling includes uplink and downlink configurations respectively corresponding to each user group information.
在该技术方案中, 基站的服务终端是指基站为其提供服务、 执行数据 交互的终端, 通过对服务终端进行分组, 并为每个用户组单独分配上下行 配置信息, 使得同一小区内也可以釆用不同的上下行配置信息。 其中, 可 以将每个微小区对应的服务终端设置为一个用户组, 则由于微小区常常相 距较远, 具有较好的干扰隔离效果, 并且能够带来较大的吞吐量增益。  In this technical solution, the serving terminal of the base station refers to a terminal for which the base station provides services and performs data interaction, and groups the service terminals, and separately allocates uplink and downlink configuration information for each user group, so that the same cell can also be used. Use different uplink and downlink configuration information. Wherein, the service terminals corresponding to each micro cell can be set as one user group, because the micro cells are often far apart, have better interference isolation effect, and can bring greater throughput gain.
在上述任一技术方案中, 优选地, 还包括: 使用序号为 0、 1、 5 和 / 或 6的子帧发送所述公共控制信令。  In any one of the foregoing technical solutions, preferably, the method further includes: transmitting, by using a subframe with sequence numbers 0, 1, 5, and/or 6 to send the common control signaling.
在该技术方案中, 在目前定义的 7种上下行配置信息中, 序号为 0、 1、 5和 6的子帧均为下行子帧 (序号 1为特殊子帧, 其中有 DwPTS固定 为下行, 可以被视为下行子帧) , 因而在这些子帧上传输公共控制信令 时, 能够得到相对更加稳定的传输效果, 有助于避免干扰的发生。 其中, In the technical solution, in the currently defined uplink and downlink configuration information, the subframes with the sequence numbers 0, 1, 5, and 6 are all downlink subframes (the sequence number 1 is a special subframe, and the DwPTS is fixed to the downlink. It can be regarded as a downlink subframe. Therefore, when common control signaling is transmitted on these subframes, a relatively more stable transmission effect can be obtained, which helps to avoid interference. among them,
"序号为 0、 1、 5 和 /或 6 的子帧" 表示从 0、 1、 5、 6 中任选一个、 两 个、 三个或全部子帧, 以用于发送公共控制信令。 "Subframes of sequence numbers 0, 1, 5, and/or 6" indicate that one, two, three, or all of the subframes from 0, 1, 5, and 6 are used for transmitting common control signaling.
在上述任一技术方案中, 优选地, 当所述基站的服务终端中存在处于 非连续接收(DRX, Discontinuous Reception ) 状态的终端时, 所述传输方 法还包括: 所述基站生成专用控制信令, 所述专用控制信令中包含所述上 下行配置信息, 并将所述专用控制信令置于所述处于非连续接收状态的终 端对应的专用搜索空间中; 发送所述专用控制信令。  In any one of the foregoing technical solutions, the method further includes: when the terminal in the serving terminal of the base station has a terminal in a discontinuous reception (DRX) state, the transmitting method further includes: generating, by the base station, dedicated control signaling And the dedicated control signaling includes the uplink and downlink configuration information, and the dedicated control signaling is placed in a dedicated search space corresponding to the terminal in the discontinuous reception state; and the dedicated control signaling is sent.
在该技术方案中, 当小区内存在 DRX 状态的终端时, 由于其仅在固 定的时间区间内苏醒并接收信息, 而其他时间区间内则保持休眠状态, 因 而可能导致其无法正常接收到上述的公共控制信令。 为了避免 DRX 状态 的终端未接收到公共控制信令、 错过对上下行参数的配置, 并导致传输混 乱和交叉干扰等情况, 可以针对 DRX 状态的终端, 将上下行配置信息置 于对应的专用搜索空间中, 以确保其能够接收到上下行配置信息。 由于小 区内处于 DRX 状态的终端的数量有限, 因而在公共控制信令的配合下, 仍然能够有效控制信令的发送数量以及控制信道的开销情况。 In this technical solution, when there is a terminal in the DRX state in the cell, since it wakes up and receives information only in a fixed time interval, and remains in a sleep state in other time intervals, it may cause the above to fail to receive the above. Common control signaling. In order to prevent the terminal in the DRX state from receiving the common control signaling, missing the configuration of the uplink and downlink parameters, and causing the transmission confusion and cross interference, the uplink and downlink configuration information may be placed in the corresponding dedicated search for the terminal in the DRX state. In space, to ensure that it can receive uplink and downlink configuration information. Due to the limited number of terminals in the DRX state in the cell, with the cooperation of common control signaling, The number of signaling transmissions and the overhead of the control channel can still be effectively controlled.
在上述任一技术方案中, 优选地, 所述专用控制信令中的上下行配置 信息位于寻呼信息或资源分配信息对应的下行控制信息中。  In any of the foregoing technical solutions, the uplink and downlink configuration information in the dedicated control signaling is located in the downlink control information corresponding to the paging information or the resource allocation information.
在该技术方案中, 由于处在 DRX 状态的终端, 主要监测下行的寻呼 信息和上行的资源分配信息, 因此可以通过在寻呼信息或资源分配信息对 应的下行控制信息中, 添加对应于 DRX 状态的终端的上下行配置信息, 从而使得小区内的所有终端都能够接收到对应于自身的上下行配置信息, 避免产生数据混乱和交叉干扰。  In this technical solution, because the terminal in the DRX state mainly monitors the downlink paging information and the uplink resource allocation information, the DRX corresponding to the DRX may be added in the downlink control information corresponding to the paging information or the resource allocation information. The uplink and downlink configuration information of the terminal in the state, so that all terminals in the cell can receive uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
在上述任一技术方案中, 优选地, 当所述基站的服务终端中存在处于 非连续接收状态的终端时, 所述传输方法还包括: 生成周期配置信令, 所 述周期配置信令包含周期配置信息, 所述周期配置信息用于对处于非连续 接收状态的终端的监听周期进行配置, 使得所述处于非连续接收状态的终 端在所述监听周期接收到所述公共控制信令; 向所述处于非连续接收状态 的终端发送上述周期配置信令。  In any one of the foregoing technical solutions, preferably, when the terminal in the non-continuous receiving state exists in the serving terminal of the base station, the transmitting method further includes: generating periodic configuration signaling, where the periodic configuration signaling includes a period The configuration information, the period configuration information is used to configure a listening period of the terminal in the discontinuous receiving state, so that the terminal in the discontinuous receiving state receives the common control signaling in the listening period; The terminal in the discontinuous reception state transmits the above-mentioned periodic configuration signaling.
在该技术方案中, DRX 状态的终端会在设定好的时间区间内进入正 常状态并接收信息, 因而通过配置 DRX 状态的终端的监听周期, 使其在 基站发送公共控制信令的时间区间内进行监听, 以使得小区内的所有终端 都能够接收到对应于自身的上下行配置信息, 避免产生数据混乱和交叉干 扰。  In this technical solution, the terminal in the DRX state enters a normal state and receives information within a set time interval, and thus the monitoring period of the terminal configured in the DRX state is made within a time interval in which the base station transmits the common control signaling. The monitoring is performed so that all terminals in the cell can receive uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
本发明还相应地提出了一种基站, 包括: 数据处理模块, 用于生成公 共控制信令, 所述公共控制信令中包含上下行配置信息, 并将所述公共控 制信令置于公共搜索空间中; 数据交互模块, 用于发送所述公共控制信 令。  The present invention also provides a base station, including: a data processing module, configured to generate common control signaling, where the common control signaling includes uplink and downlink configuration information, and the public control signaling is placed in a common search. In the space; a data interaction module, configured to send the common control signaling.
在该技术方案中, 控制信令往往是在 PDCCH (物理下行控制信道) 或是 E-PDCCH (增强的物理下行控制信道) 中传输, 并且为了配合盲检 测到方式, 又分为公共搜索空间和专用搜索空间。 其中, 通过将公共控制 信令置于公共搜索空间, 使得全部或指定的部分终端都可以从中获取上下 行配置信息, 无需——发送, 有助于减少信令交互, 降低控制信道的开 销。 在上述技术方案中, 优选地, 所述公共控制信令中的上下行配置信息 位于序号为 3或 3A的下行控制信息中。 In this technical solution, control signaling is often transmitted in a PDCCH (Physical Downlink Control Channel) or an E-PDCCH (Enhanced Physical Downlink Control Channel), and is classified into a common search space and in accordance with a blind detection method. Dedicated search space. The common control signaling is placed in the common search space, so that all or a part of the specified terminals can obtain the uplink and downlink configuration information, without sending, which helps reduce signaling interaction and reduce the overhead of the control channel. In the above technical solution, preferably, the uplink and downlink configuration information in the common control signaling is located in the downlink control information with the sequence number 3 or 3A.
在该技术方案中, 序号为 3 或 3A 的下行控制信息 (DCI, Downlink Control Information ) 用于传输 TPC ( Transmission Power Control , 传输功 率控制) 功率控制参数, 但由于小区内常常并没有那么多的终端同时工作 并需要功率控制, 因而序号为 3或 3A的下行控制信息中往往存在一些空 闲的比特位。 通过将上下行配置信息添加至上述的空闲比特位, 使得减少 了信令的发送次数, 以较小的信息结构改进, 实现了对上下行配置信息的 发送。  In this technical solution, downlink control information (DCI, Downlink Control Information) with sequence number 3 or 3A is used to transmit TPC (Transmission Power Control) power control parameters, but there are often not many terminals in the cell. At the same time, it requires power control, so there are often some idle bits in the downlink control information with sequence number 3 or 3A. By adding the uplink and downlink configuration information to the idle bits described above, the number of signaling transmissions is reduced, and the information structure is improved with a smaller information structure, and the uplink and downlink configuration information is transmitted.
在上述任一技术方案中, 优选地, 所述数据处理模块还用于: 分别使 用不同的 RNTI, 对所述上下行配置信息和所述公共控制信令中的其他信 息进行力口扰。  In any one of the foregoing technical solutions, the data processing module is further configured to: perform dynamic interference on the uplink and downlink configuration information and other information in the common control signaling by using different RNTIs.
在该技术方案中, 终端需要通过盲检测的方式, 来确定当前接收到的 数据是否为自身实际所需的信息。 具体比如: 通过对不同的信息设置对应 的无线网络临时标识 (如 RNTI ) , 并使用该 RNTI 对相应的信息进行加 扰, 若终端能够使用相同的 RNTI对接收到的数据进行解扰, 则说明该数 据为终端所需的信息。 因此, 需要将上下行配置信息对应的 RNTI 与信令 中的其他信息对应的 RNTI 区分开来, 以便于终端能够准确地获知当前接 收到的是否为上下行配置信息。 具体地, 上下行配置信息对应的 RNTI 可 以为全新设计的 RNTI, 也可以为已有的 RNTI, 但能够与同一信令中的其 他信息对应的 RNTI相区别。  In this technical solution, the terminal needs to determine whether the currently received data is the information actually needed by itself by means of blind detection. For example, by setting a corresponding radio network temporary identifier (such as RNTI) for different information, and using the RNTI to scramble the corresponding information, if the terminal can use the same RNTI to descramble the received data, This data is the information required by the terminal. Therefore, the RNTI corresponding to the uplink and downlink configuration information needs to be distinguished from the RNTI corresponding to the other information in the signaling, so that the terminal can accurately know whether the current received uplink/downlink configuration information is received. Specifically, the RNTI corresponding to the uplink and downlink configuration information may be a newly designed RNTI, or may be an existing RNTI, but can be distinguished from an RNTI corresponding to other information in the same signaling.
在上述任一技术方案中, 优选地, 所述数据处理模块还用于: 将所述 基站的服务终端分为多个用户组; 其中, 所述公共控制信令中包含有分别 对应于每个用户组的上下行配置信息。  In any one of the foregoing technical solutions, the data processing module is further configured to: divide the service terminal of the base station into multiple user groups; where the common control signaling includes respectively corresponding to each Upstream and downlink configuration information of the user group.
在该技术方案中, 基站的服务终端是指基站为其提供服务、 执行数据 交互的终端, 通过对服务终端进行分组, 并为每个用户组单独分配上下行 配置信息, 使得同一小区内也可以釆用不同的上下行配置信息。 其中, 可 以将每个微小区对应的服务终端设置为一个用户组, 则由于微小区常常相 距较远, 具有较好的干扰隔离效果, 并且能够带来较大的吞吐量增益。 在上述任一技术方案中, 优选地, 所述数据交互模块还用于: 使用序 号为 0、 1、 5和 /或 6的子帧发送所述公共控制信令。 In this technical solution, the serving terminal of the base station refers to a terminal for which the base station provides services and performs data interaction, and groups the service terminals, and separately allocates uplink and downlink configuration information for each user group, so that the same cell can also be used. Use different uplink and downlink configuration information. Wherein, the service terminals corresponding to each micro cell can be set as one user group, because the micro cells are often far apart, have better interference isolation effect, and can bring greater throughput gain. Preferably, the data interaction module is further configured to: send the common control signaling by using a subframe with sequence numbers 0, 1, 5, and/or 6.
在该技术方案中, 在目前定义的 7种上下行配置信息中, 序号为 0、 1、 5和 6的子帧均为下行子帧 (序号 1为特殊子帧, 其中有 DwPTS固定 为下行, 可以被视为下行子帧) , 因而在这些子帧上传输公共控制信令 时, 能够得到相对更加稳定的传输效果, 有助于避免干扰的发生。 其中, In the technical solution, in the currently defined uplink and downlink configuration information, the subframes with the sequence numbers 0, 1, 5, and 6 are all downlink subframes (the sequence number 1 is a special subframe, and the DwPTS is fixed to the downlink. It can be regarded as a downlink subframe. Therefore, when common control signaling is transmitted on these subframes, a relatively more stable transmission effect can be obtained, which helps to avoid interference. among them,
"序号为 0、 1、 5 和 /或 6 的子帧" 表示从 0、 1、 5、 6 中任选一个、 两 个、 三个或全部子帧, 以用于发送公共控制信令。 "Subframes of sequence numbers 0, 1, 5, and/or 6" indicate that one, two, three, or all of the subframes from 0, 1, 5, and 6 are used for transmitting common control signaling.
在上述任一技术方案中, 优选地, 当所述基站的服务终端中存在处于 非连续接收状态的终端时, 所述数据处理模块还用于: 生成专用控制信 令, 所述专用控制信令中包含所述上下行配置信息, 并将所述专用控制信 令置于所述处于非连续接收状态的终端对应的专用搜索空间中; 所述数据 交互模块还用于: 发送所述专用控制信令。  In any one of the foregoing technical solutions, the data processing module is further configured to: generate dedicated control signaling, the dedicated control signaling, when the terminal in the non-continuous receiving state exists in the serving terminal of the base station The uplink and downlink configuration information is included, and the dedicated control signaling is placed in a dedicated search space corresponding to the terminal in the discontinuous reception state; the data interaction module is further configured to: send the dedicated control signal make.
在该技术方案中, 当小区内存在 DRX 状态的终端时, 由于其仅在固 定的时间区间内苏醒并接收信息, 而其他时间区间内则保持休眠状态, 因 而可能导致其无法正常接收到上述的公共控制信令。 为了避免 DRX 状态 的终端未接收到公共控制信令、 错过对上下行参数的配置, 并导致传输混 乱和交叉干扰等情况, 可以针对 DRX 状态的终端, 将上下行配置信息置 于对应的专用搜索空间中, 以确保其能够接收到上下行配置信息。 由于小 区内处于 DRX 状态的终端的数量有限, 因而在公共控制信令的配合下, 仍然能够有效控制信令的发送数量以及控制信道的开销情况。  In this technical solution, when there is a terminal in the DRX state in the cell, since it wakes up and receives information only in a fixed time interval, and remains in a sleep state in other time intervals, it may cause the above to fail to receive the above. Common control signaling. In order to prevent the terminal in the DRX state from receiving the common control signaling, missing the configuration of the uplink and downlink parameters, and causing the transmission confusion and cross interference, the uplink and downlink configuration information may be placed in the corresponding dedicated search for the terminal in the DRX state. In space, to ensure that it can receive uplink and downlink configuration information. Due to the limited number of terminals in the DRX state in the small area, the number of signaling transmissions and the overhead of the control channel can be effectively controlled under the cooperation of common control signaling.
在上述任一技术方案中, 优选地, 所述专用控制信令中的上下行配置 信息位于寻呼信息或资源分配信息对应的下行控制信息中。  In any of the foregoing technical solutions, the uplink and downlink configuration information in the dedicated control signaling is located in the downlink control information corresponding to the paging information or the resource allocation information.
在该技术方案中, 由于处在 DRX 状态的终端, 主要监测下行的寻呼 信息和上行的资源分配信息, 因此可以通过在寻呼信息或资源分配信息对 应的下行控制信息中, 添加对应于 DRX 状态的终端的上下行配置信息, 从而使得小区内的所有终端都能够接收到对应于自身的上下行配置信息, 避免产生数据混乱和交叉干扰。  In this technical solution, because the terminal in the DRX state mainly monitors the downlink paging information and the uplink resource allocation information, the DRX corresponding to the DRX may be added in the downlink control information corresponding to the paging information or the resource allocation information. The uplink and downlink configuration information of the terminal in the state, so that all terminals in the cell can receive uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
在上述任一技术方案中, 优选地, 当所述基站的服务终端中存在处于 非连续接收状态的终端时, 所述数据处理模块还用于: 生成周期配置信 令, 所述周期配置信令包含周期配置信息, 所述周期配置信息用于对处于 非连续接收状态的终端的监听周期进行配置, 使得所述处于非连续接收状 态的终端在所述监听周期接收到所述公共控制信令; 所述数据交互模块还 用于: 向所述处于非连续接收状态的终端发送上述周期配置信令。 In any one of the foregoing technical solutions, preferably, when the serving terminal of the base station exists The data processing module is further configured to: generate periodic configuration signaling, where the periodic configuration signaling includes periodic configuration information, where the periodic configuration information is used for a terminal that is in a discontinuous receiving state. The monitoring period is configured to enable the terminal in the discontinuous reception state to receive the common control signaling in the listening period; the data interaction module is further configured to: send the foregoing to the terminal in the discontinuous receiving state Periodic configuration signaling.
在该技术方案中, DRX 状态的终端会在设定好的时间区间内进入正 常状态并接收信息, 因而通过配置 DRX 状态的终端的监听周期, 使其在 基站发送公共控制信令的时间区间内进行监听, 以使得小区内的所有终端 都能够接收到对应于自身的上下行配置信息, 避免产生数据混乱和交叉干 扰。  In this technical solution, the terminal in the DRX state enters a normal state and receives information within a set time interval, and thus the monitoring period of the terminal configured in the DRX state is made within a time interval in which the base station transmits the common control signaling. The monitoring is performed so that all terminals in the cell can receive uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
通过以上技术方案, 可以使小区内的终端都直接从公共搜索空间中获 取上下行配置信息, 而无需分别向每个终端单独发送, 有助于减少信令发 送次数, 降低控制信道的开销。 附图说明  With the above technical solution, the terminals in the cell can obtain the uplink and downlink configuration information directly from the common search space without separately transmitting to each terminal separately, which helps reduce the number of signaling transmissions and reduces the overhead of the control channel. DRAWINGS
图 1 示出了相关技术中定义的 TDD 系统中七种无线帧的结构示意 图;  1 is a schematic structural view showing seven radio frames in a TDD system defined in the related art;
图 2 示出了根据本发明的实施例的控制信令的传输方法的示意流程 图;  2 is a schematic flow chart showing a method of transmitting control signaling according to an embodiment of the present invention;
图 3 示出了根据本发明的一个实施例的向 DRX终端发送上下行配置 信息的示意图;  FIG. 3 is a schematic diagram showing sending uplink and downlink configuration information to a DRX terminal according to an embodiment of the present invention; FIG.
图 4示出了根据本发明的另一个实施例的向 DRX终端发送上下行配 置信息的示意图;  FIG. 4 is a schematic diagram showing sending uplink and downlink configuration information to a DRX terminal according to another embodiment of the present invention; FIG.
图 5示出了根据本发明的实施例的基站的示意框图。 具体实施方式  Figure 5 shows a schematic block diagram of a base station in accordance with an embodiment of the present invention. detailed description
为了能够更清楚地理解本发明的上述目的、 特征和优点, 下面结合附 图和具体实施方式对本发明进行进一步的详细描述。 需要说明的是, 在不 冲突的情况下, 本申请的实施例及实施例中的特征可以相互组合。 在下面的描述中阐述了很多具体细节以便于充分理解本发明, 但是, 本发明还可以釆用其他不同于在此描述的其他方式来实施, 因此, 本发明 的保护范围并不受下面公开的具体实施例的限制。 The present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments of the present application may be combined with each other. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention, but the invention may be practiced in other embodiments other than those described herein. Limitations of specific embodiments.
本发明提出了通过信令传输, 实现上下行配置信息的发送的技术方 案, 其中, 针对小区内不同状态的终端, 存在不同的处理方式, 下面将分 别进行详细的说明。  The present invention proposes a technical solution for transmitting uplink and downlink configuration information through signaling transmission. Among them, there are different processing modes for terminals in different states in the cell, which will be described in detail below.
一、 针对正常状态的终端  First, the terminal for the normal state
图 2 示出了根据本发明的实施例的控制信令的传输方法的示意流程 图。  FIG. 2 shows a schematic flow chart of a transmission method of control signaling according to an embodiment of the present invention.
如图 2所示, 根据本发明的实施例的控制信令的传输方法, 包括: 基 站生成公共控制信令, 所述公共控制信令中包含上下行配置信息, 并将所 述公共控制信令置于公共搜索空间中; 发送所述公共控制信令。  As shown in FIG. 2, a method for transmitting control signaling according to an embodiment of the present invention includes: a base station generates common control signaling, where the common control signaling includes uplink and downlink configuration information, and the common control signaling is Placed in a common search space; send the common control signaling.
在该技术方案中, 控制信令往往是在 PDCCH (物理下行控制信道) 或是 E-PDCCH (增强的物理下行控制信道) 中传输, 并且为了配合盲检 测到方式, 又分为公共搜索空间和专用搜索空间。 其中, 通过将公共控制 信令置于公共搜索空间, 使得全部或指定的部分终端都可以从中获取上下 行配置信息, 无需——发送, 有助于减少信令交互, 降低控制信道的开 销。  In this technical solution, control signaling is often transmitted in a PDCCH (Physical Downlink Control Channel) or an E-PDCCH (Enhanced Physical Downlink Control Channel), and is classified into a common search space and in accordance with a blind detection method. Dedicated search space. By placing the common control signaling in the common search space, all or a specified part of the terminal can obtain the uplink and downlink configuration information from it, without having to transmit, which helps reduce signaling interaction and reduce the overhead of the control channel.
对于上述的上下行配置信息, 具体可以釆用多种方式进行传输, 比 如:  For the above uplink and downlink configuration information, it can be transmitted in multiple ways, such as:
1 ) 将上述的上下行配置信息置于序号为 3或 3A的下行控制信息中。 序号为 3 或 3A 的下行控制信息 ( DCI, Downlink Control Information ) 用于传输 TPC ( Transmission Power Control , 传输功率控 制) 功率控制参数, 但由于小区内常常并没有那么多的终端同时工作并需 要功率控制, 因而序号为 3或 3A的下行控制信息中往往存在一些空闲的 比特位。 通过将上下行配置信息添加至上述的空闲比特位, 使得减少了信 令的发送次数, 以较小的信息结构改进, 实现了对上下行配置信息的发 送。  1) The above uplink and downlink configuration information is placed in the downlink control information with the sequence number 3 or 3A. The downlink control information (DCI, Downlink Control Information) with sequence number 3 or 3A is used to transmit TPC (Transmission Power Control) power control parameters, but because there are not many terminals working in the cell at the same time and power control is required. Therefore, there are often some idle bits in the downlink control information with sequence number 3 or 3A. By adding the uplink and downlink configuration information to the above-mentioned idle bits, the number of transmissions of the signaling is reduced, and the information structure is improved with a smaller information structure, and the transmission of the uplink and downlink configuration information is realized.
2 ) 也可以使用其他的下行控制信息; 或釆用全新定义的信息, 其具 体结构可以参考如 DCI Format 3/3A ( 44 比特, 即上述的序号为 3或 3A 的下行控制信息) , 也可以参考可靠性更高的 DCI Format 1 ( 55比特) 等 其他信息。 2) Other downlink control information can also be used; or use newly defined information, For the structure, refer to DCI Format 3/3A (44 bits, which is the downlink control information with the serial number 3 or 3A mentioned above), or other information such as DCI Format 1 (55 bits) with higher reliability.
当需要将上述的上下行配置信息添加至现有的信息中时, 比如添加至 DCI Format 3/3A中, 可以使用不同的无线网络临时标识 ( RNTI ) , 对所 述上下行配置信息和其他信息进行加扰。  When the uplink and downlink configuration information needs to be added to the existing information, for example, added to the DCI Format 3/3A, different radio network temporary identifiers (RNTIs) may be used, and the uplink and downlink configuration information and other information may be used. Perform scrambling.
该方案涉及到终端的盲检测过程。 由于终端需要通过盲检测的方式, 来确定当前接收到的数据是否为自身实际所需的信息, 具体比如: 通过对 不同的信息设置对应的无线网络临时标识 (如 RNTI ) , 并使用该 RNTI 对相应的信息进行加扰, 若终端能够使用相同的 RNTI对接收到的数据进 行解扰, 则说明该数据为终端所需的信息。 因此, 需要将上下行配置信息 对应的 RNTI与信令中的其他信息对应的 RNTI 区分开来, 以便于终端能 够准确地获知当前接收到的是否为上下行配置信息。  This solution involves the blind detection process of the terminal. The terminal needs to determine whether the currently received data is actually required by the blind detection mode, for example, by setting a corresponding wireless network temporary identifier (such as RNTI) for different information, and using the RNTI pair. Corresponding information is scrambled. If the terminal can descramble the received data using the same RNTI, it indicates that the data is the information required by the terminal. Therefore, the RNTI corresponding to the uplink and downlink configuration information needs to be distinguished from the RNTI corresponding to the other information in the signaling, so that the terminal can accurately know whether the currently received uplink/downlink configuration information is received.
当然, 上下行配置信息对应的 RNTI 可以存在多种形式: 1 ) 目前针 对不同的控制信息, 已经设置了很多不同的 RNTI, 则由于如 DCI Format 3/3A中仅包含部分控制信息, 使得只需要从已有的 RNTI中进行选择, 并 确保选中的 RNTI与如 DCI Format 3/3A 中包含的控制信息对应的 RNTI 不同, 即可保证终端能够有效区分开各种不同的信息; 2 ) 也可以设计出 与现有的所有 RNTI 都不同的、 全新的 RNTI, 以用于对上下行配置信息 进行加扰和解扰。  Of course, the RNTI corresponding to the uplink and downlink configuration information can exist in various forms: 1) Currently, many different RNTIs have been set for different control information, because only some control information is included in the DCI Format 3/3A, so that only Selecting from the existing RNTI and ensuring that the selected RNTI is different from the RNTI corresponding to the control information included in DCI Format 3/3A, can ensure that the terminal can effectively distinguish different information; 2) can also be designed A new RNTI is generated different from all existing RNTIs for scrambling and descrambling the uplink and downlink configuration information.
在上述任一技术方案中, 优选地, 还包括: 将所述基站的服务终端分 为多个用户组; 其中, 所述公共控制信令中包含有分别对应于每个用户组 的上下行配置信息。  In any one of the foregoing technical solutions, the method further includes: dividing the service terminal of the base station into multiple user groups; wherein, the common control signaling includes uplink and downlink configurations respectively corresponding to each user group information.
在该技术方案中, 基站的服务终端是指基站为其提供服务、 执行数据 交互的终端, 通过对服务终端进行分组, 并为每个用户组单独分配上下行 配置信息, 使得同一小区内也可以釆用不同的上下行配置信息。 其中, 可 以将每个微小区对应的服务终端设置为一个用户组, 则由于微小区常常相 距较远, 具有较好的干扰隔离效果, 并且能够带来较大的吞吐量增益。  In this technical solution, the serving terminal of the base station refers to a terminal for which the base station provides services and performs data interaction, and groups the service terminals, and separately allocates uplink and downlink configuration information for each user group, so that the same cell can also be used. Use different uplink and downlink configuration information. Wherein, the service terminals corresponding to each micro cell can be set as one user group, because the micro cells are often far apart, have better interference isolation effect, and can bring greater throughput gain.
在上述任一技术方案中, 优选地, 还包括: 使用序号为 0、 1、 5 和 / 或 6的子帧发送所述公共控制信令。 In any of the above technical solutions, preferably, the method further comprises: using the sequence numbers 0, 1, 5, and / The subframe of 6 or 6 transmits the common control signaling.
在该技术方案中, 在目前定义的 7种上下行配置信息中, 序号为 0、 1、 5和 6的子帧均为下行子帧 (序号 1为特殊子帧, 其中有 DwPTS固定 为下行, 可以被视为下行子帧) , 因而在这些子帧上传输公共控制信令 时, 能够得到相对更加稳定的传输效果, 有助于避免干扰的发生。 其中, In the technical solution, in the currently defined uplink and downlink configuration information, the subframes with the sequence numbers 0, 1, 5, and 6 are all downlink subframes (the sequence number 1 is a special subframe, and the DwPTS is fixed to the downlink. It can be regarded as a downlink subframe. Therefore, when common control signaling is transmitted on these subframes, a relatively more stable transmission effect can be obtained, which helps to avoid interference. among them,
"序号为 0、 1、 5 和 /或 6 的子帧" 表示从 0、 1、 5、 6 中任选一个、 两 个、 三个或全部子帧, 以用于发送公共控制信令。 "Subframes of sequence numbers 0, 1, 5, and/or 6" indicate that one, two, three, or all of the subframes from 0, 1, 5, and 6 are used for transmitting common control signaling.
二、 针对 DRX状态的终端  Second, the terminal for the DRX state
实施例 1  Example 1
图 3 示出了根据本发明的一个实施例的向 DRX终端发送上下行配置 信息的示意图。  FIG. 3 shows a schematic diagram of transmitting uplink and downlink configuration information to a DRX terminal according to an embodiment of the present invention.
如图 3 所示, 当小区内存在 DRX状态的终端时, 由于其仅在固定的 时间区间内苏醒并接收信息, 而其他时间区间内则保持休眠状态, 因而可 能导致其无法正常接收到上述的公共控制信令。 为了避免 DRX 状态的终 端未接收到公共控制信令、 错过对上下行参数的配置, 并导致传输混乱和 交叉干扰等情况, 可以针对 DRX状态的终端执行下述操作:  As shown in FIG. 3, when there is a terminal in the DRX state in the cell, since it wakes up and receives information only in a fixed time interval, and remains in a sleep state in other time intervals, it may cause the above to fail to receive the above. Common control signaling. In order to prevent the terminal of the DRX state from receiving the common control signaling, missing the configuration of the uplink and downlink parameters, and causing the transmission confusion and cross interference, the following operations can be performed for the terminal in the DRX state:
所述基站生成专用控制信令, 所述专用控制信令中包含所述上下行配 置信息, 并将所述专用控制信令置于所述处于非连续接收状态的终端对应 的专用搜索空间中; 发送所述专用控制信令。  The base station generates dedicated control signaling, where the dedicated control signaling includes the uplink and downlink configuration information, and places the dedicated control signaling in a dedicated search space corresponding to the terminal in the discontinuous reception state; The dedicated control signaling is sent.
因此, 针对小区处于正常状态的终端和处于 DRX 状态的终端, 分别 将上下行配置信息置于公共搜索空间和专用搜索空间中, 从而确保所有终 端都能够接收到对应于自身的上下行配置信息。 其中, 由于小区内处于 DRX 状态的终端的数量有限, 因而在公共控制信令的配合下, 仍然能够 有效控制信令的发送数量以及控制信道的开销情况。  Therefore, for the terminal in the normal state of the cell and the terminal in the DRX state, the uplink and downlink configuration information is respectively placed in the common search space and the dedicated search space, thereby ensuring that all the terminals can receive the uplink and downlink configuration information corresponding to themselves. The number of terminals in the DRX state in the cell is limited. Therefore, the number of signaling transmissions and the overhead of the control channel can be effectively controlled by the common control signaling.
优选地, 所述专用控制信令中的上下行配置信息位于寻呼信息或资源 分配信息对应的下行控制信息中。  Preferably, the uplink and downlink configuration information in the dedicated control signaling is located in the downlink control information corresponding to the paging information or the resource allocation information.
在该技术方案中, 由于处在 DRX 状态的终端, 主要监测下行的寻呼 信息和上行的资源分配信息, 因此可以通过在寻呼信息或资源分配信息对 应的下行控制信息中, 添加对应于 DRX 状态的终端的上下行配置信息, 从而使得小区内的所有终端都能够接收到对应于自身的上下行配置信息, 避免产生数据混乱和交叉干扰。 In this technical solution, because the terminal in the DRX state mainly monitors the downlink paging information and the uplink resource allocation information, the DRX corresponding to the DRX may be added in the downlink control information corresponding to the paging information or the resource allocation information. Upstream and downlink configuration information of the terminal in the state, Therefore, all terminals in the cell can receive uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
实施例 2  Example 2
针对小区内处于 DRX 状态的终端, 还可以釆用其他方式, 以确保其 接收到对应的上下行配置信息, 下面结合图 4进行详细说明, 其中, 图 4 示出了根据本发明的另一个实施例的向 DRX 终端发送上下行配置信息的 示意图。  For the terminal in the DRX state in the cell, other methods may be used to ensure that it receives the corresponding uplink and downlink configuration information, which will be described in detail below with reference to FIG. 4. FIG. 4 shows another implementation according to the present invention. A schematic diagram of sending uplink and downlink configuration information to a DRX terminal.
基站侧: 基站在预设的时间区间内, 分别对上下行配置信息以及其他 的信息进行发送。  Base station side: The base station sends uplink and downlink configuration information and other information in a preset time interval.
D X 终端侧: DRX 终端按照配置的周期, 在正常状态与 DRX 状态 之间交替变换。  D X Terminal side: The DRX terminal alternates between the normal state and the DRX state according to the configured period.
当未对 DRX终端执行专门的协调时, 则 D X终端从 DRX状态切换 为正常状态的时间窗口, 很可能与基站发送上下行配置信息的时间窗口不 匹配, 导致终端无法接收到置于公共搜索空间内的上下行配置信息。  When the special coordination is not performed on the DRX terminal, the time window in which the DX terminal switches from the DRX state to the normal state may not match the time window in which the base station sends the uplink and downlink configuration information, and the terminal cannot receive the public search space. Upstream and downstream configuration information.
而通过对 DRX终端的专门协调, 使得 DRX终端从 DRX状态切换为 正常状态的时间窗口, 与基站发送上下行配置信息的时间窗口相匹配, 刚 好能够监听到被置于公共搜索空间内的上下行配置信息, 从而使得小区内 的所有终端都能够顺序获取对应于自身的上下行配置信息, 避免产生数据 混乱和交叉干扰。  Through the special coordination of the DRX terminal, the time window for the DRX terminal to switch from the DRX state to the normal state matches the time window of the uplink and downlink configuration information sent by the base station, and can just monitor the uplink and downlink placed in the common search space. The configuration information is such that all terminals in the cell can sequentially obtain uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
针对上述方案, 本发明还提出了对应的硬件模块或功能架构, 下面结 合图 5进行详细说明, 其中, 图 5示出了根据本发明的实施例的基站的示 意框图。  For the above solution, the present invention also proposes a corresponding hardware module or functional architecture, which is described in detail below in conjunction with FIG. 5, wherein FIG. 5 shows a schematic block diagram of a base station according to an embodiment of the present invention.
如图 5 所示, 根据本发明的实施例的基站 500, 包括: 数据处理模块 502 , 用于生成公共控制信令, 所述公共控制信令中包含上下行配置信 息, 并将所述公共控制信令置于公共搜索空间中; 数据交互模块 504, 用 于发送所述公共控制信令。  As shown in FIG. 5, a base station 500 according to an embodiment of the present invention includes: a data processing module 502, configured to generate common control signaling, where the common control signaling includes uplink and downlink configuration information, and the common control The signaling is placed in a common search space; the data interaction module 504 is configured to send the common control signaling.
在该技术方案中, 控制信令往往是在 PDCCH (物理下行控制信道) 或是 E-PDCCH (增强的物理下行控制信道) 中传输, 并且为了配合盲检 测到方式, 又分为公共搜索空间和专用搜索空间。 其中, 通过将公共控制 信令置于公共搜索空间, 使得全部或指定的部分终端都可以从中获取上下 行配置信息, 无需——发送, 有助于减少信令交互, 降低控制信道的开 销。 In this technical solution, control signaling is often transmitted in a PDCCH (Physical Downlink Control Channel) or an E-PDCCH (Enhanced Physical Downlink Control Channel), and is classified into a common search space and in accordance with a blind detection method. Dedicated search space. Among them, through public control The signaling is placed in the common search space, so that all or a part of the specified terminals can obtain the uplink and downlink configuration information, without the need to send, which helps reduce signaling interaction and reduce the overhead of the control channel.
在上述技术方案中, 优选地, 所述公共控制信令中的上下行配置信息 位于序号为 3或 3A的下行控制信息中。  In the above technical solution, preferably, the uplink and downlink configuration information in the common control signaling is located in the downlink control information with the sequence number 3 or 3A.
在该技术方案中, 序号为 3 或 3A 的下行控制信息 (DCI, Downlink Control Information ) 用于传输 TPC ( Transmission Power Control , 传输功 率控制) 功率控制参数, 但由于小区内常常并没有那么多的终端同时工作 并需要功率控制, 因而序号为 3或 3A的下行控制信息中往往存在一些空 闲的比特位。 通过将上下行配置信息添加至上述的空闲比特位, 使得减少 了信令的发送次数, 以较小的信息结构改进, 实现了对上下行配置信息的 发送。  In this technical solution, downlink control information (DCI, Downlink Control Information) with sequence number 3 or 3A is used to transmit TPC (Transmission Power Control) power control parameters, but there are often not many terminals in the cell. At the same time, it requires power control, so there are often some idle bits in the downlink control information with sequence number 3 or 3A. By adding the uplink and downlink configuration information to the idle bits described above, the number of signaling transmissions is reduced, and the information structure is improved with a smaller information structure, and the uplink and downlink configuration information is transmitted.
在上述任一技术方案中, 优选地, 所述数据处理模块 502还用于: 分 别使用不同的 RNTI, 对所述上下行配置信息和所述公共控制信令中的其 他信息进行力口扰。  In any of the foregoing technical solutions, the data processing module 502 is further configured to: perform dynamic interference on the uplink and downlink configuration information and other information in the common control signaling by using different RNTIs.
在该技术方案中, 终端需要通过盲检测的方式, 来确定当前接收到的 数据是否为自身实际所需的信息。 具体比如: 通过对不同的信息设置对应 的无线网络临时标识 (如 RNTI ) , 并使用该 RNTI 对相应的信息进行加 扰, 若终端能够使用相同的 RNTI对接收到的数据进行解扰, 则说明该数 据为终端所需的信息。 因此, 需要将上下行配置信息对应的 RNTI 与信令 中的其他信息对应的 RNTI 区分开来, 以便于终端能够准确地获知当前接 收到的是否为上下行配置信息。 具体地, 上下行配置信息对应的 RNTI 可 以为全新设计的 RNTI, 也可以为已有的 RNTI, 但能够与同一信令中的其 他信息对应的 RNTI相区别。  In this technical solution, the terminal needs to determine whether the currently received data is the information actually needed by itself by means of blind detection. For example, by setting a corresponding radio network temporary identifier (such as RNTI) for different information, and using the RNTI to scramble the corresponding information, if the terminal can use the same RNTI to descramble the received data, This data is the information required by the terminal. Therefore, the RNTI corresponding to the uplink and downlink configuration information needs to be distinguished from the RNTI corresponding to the other information in the signaling, so that the terminal can accurately know whether the current received uplink/downlink configuration information is received. Specifically, the RNTI corresponding to the uplink and downlink configuration information may be a newly designed RNTI, or may be an existing RNTI, but can be distinguished from an RNTI corresponding to other information in the same signaling.
在上述任一技术方案中, 优选地, 所述数据处理模块 502还用于: 将 所述基站 500的服务终端分为多个用户组; 其中, 所述公共控制信令中包 含有分别对应于每个用户组的上下行配置信息。  In any one of the foregoing technical solutions, the data processing module 502 is further configured to: divide the service terminal of the base station 500 into multiple user groups; where the common control signaling includes Up-and-down configuration information for each user group.
在该技术方案中, 基站 500的服务终端是指基站 500为其提供服务、 执行数据交互的终端, 通过对服务终端进行分组, 并为每个用户组单独分 配上下行配置信息, 使得同一小区内也可以釆用不同的上下行配置信息。 其中, 可以将每个微小区对应的服务终端设置为一个用户组, 则由于微小 区常常相距较远, 具有较好的干扰隔离效果, 并且能够带来较大的吞吐量 增益。 In this technical solution, the serving terminal of the base station 500 refers to a terminal for which the base station 500 provides services and performs data interaction, by grouping the service terminals, and separately for each user group. The downlink configuration information is configured so that different uplink and downlink configuration information can be used in the same cell. Wherein, the service terminals corresponding to each micro cell can be set as one user group, because the micro cells are often far apart, have better interference isolation effect, and can bring greater throughput gain.
在上述任一技术方案中, 优选地, 所述数据交互模块 504还用于: 使 用序号为 0、 1、 5和 /或 6的子帧发送所述公共控制信令。  In any of the foregoing technical solutions, the data interaction module 504 is further configured to: send the common control signaling by using a subframe with sequence numbers 0, 1, 5, and/or 6.
在该技术方案中, 在目前定义的 7种上下行配置信息中, 序号为 0、 1、 5和 6的子帧均为下行子帧 (序号 1为特殊子帧, 其中有 DwPTS固定 为下行, 可以被视为下行子帧) , 因而在这些子帧上传输公共控制信令 时, 能够得到相对更加稳定的传输效果, 有助于避免干扰的发生。 其中, In the technical solution, in the currently defined uplink and downlink configuration information, the subframes with the sequence numbers 0, 1, 5, and 6 are all downlink subframes (the sequence number 1 is a special subframe, and the DwPTS is fixed to the downlink. It can be regarded as a downlink subframe. Therefore, when common control signaling is transmitted on these subframes, a relatively more stable transmission effect can be obtained, which helps to avoid interference. among them,
"序号为 0、 1、 5 和 /或 6 的子帧" 表示从 0、 1、 5、 6 中任选一个、 两 个、 三个或全部子帧, 以用于发送公共控制信令。 "Subframes of sequence numbers 0, 1, 5, and/or 6" indicate that one, two, three, or all of the subframes from 0, 1, 5, and 6 are used for transmitting common control signaling.
在上述任一技术方案中, 优选地, 当所述基站 500的服务终端中存在 处于非连续接收状态的终端时, 所述数据处理模块 502还用于: 生成专用 控制信令, 所述专用控制信令中包含所述上下行配置信息, 并将所述专用 控制信令置于所述处于非连续接收状态的终端对应的专用搜索空间中; 所 述数据交互模块 504还用于: 发送所述专用控制信令。  In any one of the foregoing technical solutions, the data processing module 502 is further configured to: generate dedicated control signaling, where the dedicated control is generated, when the terminal in the serving terminal of the base station 500 is in a discontinuous receiving state. The signaling includes the uplink and downlink configuration information, and the dedicated control signaling is placed in a dedicated search space corresponding to the terminal in the discontinuous reception state; the data interaction module 504 is further configured to: send the Dedicated control signaling.
在该技术方案中, 当小区内存在 DRX 状态的终端时, 由于其仅在固 定的时间区间内苏醒并接收信息, 而其他时间区间内则保持休眠状态, 因 而可能导致其无法正常接收到上述的公共控制信令。 为了避免 DRX 状态 的终端未接收到公共控制信令、 错过对上下行参数的配置, 并导致传输混 乱和交叉干扰等情况, 可以针对 DRX 状态的终端, 将上下行配置信息置 于对应的专用搜索空间中, 以确保其能够接收到上下行配置信息。 由于小 区内处于 DRX 状态的终端的数量有限, 因而在公共控制信令的配合下, 仍然能够有效控制信令的发送数量以及控制信道的开销情况。  In this technical solution, when there is a terminal in the DRX state in the cell, since it wakes up and receives information only in a fixed time interval, and remains in a sleep state in other time intervals, it may cause the above to fail to receive the above. Common control signaling. In order to prevent the terminal in the DRX state from receiving the common control signaling, missing the configuration of the uplink and downlink parameters, and causing the transmission confusion and cross interference, the uplink and downlink configuration information may be placed in the corresponding dedicated search for the terminal in the DRX state. In space, to ensure that it can receive uplink and downlink configuration information. Due to the limited number of terminals in the DRX state in the small area, the number of signaling transmissions and the overhead of the control channel can be effectively controlled under the cooperation of common control signaling.
在上述任一技术方案中, 优选地, 所述专用控制信令中的上下行配置 信息位于寻呼信息或资源分配信息对应的下行控制信息中。  In any of the foregoing technical solutions, the uplink and downlink configuration information in the dedicated control signaling is located in the downlink control information corresponding to the paging information or the resource allocation information.
在该技术方案中, 由于处在 DRX 状态的终端, 主要监测下行的寻呼 信息和上行的资源分配信息, 因此可以通过在寻呼信息或资源分配信息对 应的下行控制信息中, 添加对应于 DRX 状态的终端的上下行配置信息, 从而使得小区内的所有终端都能够接收到对应于自身的上下行配置信息, 避免产生数据混乱和交叉干扰。 In this technical solution, since the terminal in the DRX state mainly monitors the downlink paging information and the uplink resource allocation information, the paging information or the resource allocation information pair may be adopted. In the downlink control information, the uplink and downlink configuration information of the terminal corresponding to the DRX state is added, so that all the terminals in the cell can receive the uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
在上述任一技术方案中, 优选地, 当所述基站 500的服务终端中存在 处于非连续接收状态的终端时, 所述数据处理模块 502还用于: 生成周期 配置信令, 所述周期配置信令包含周期配置信息, 所述周期配置信息用于 对处于非连续接收状态的终端的监听周期进行配置, 使得所述处于非连续 接收状态的终端在所述监听周期接收到所述公共控制信令; 所述数据交互 模块 504还用于: 向所述处于非连续接收状态的终端发送上述周期配置信 令。  In any one of the foregoing technical solutions, the data processing module 502 is further configured to: generate periodic configuration signaling, the periodic configuration, when the terminal in the non-continuous receiving state exists in the serving terminal of the base station 500 The signaling includes periodic configuration information, where the periodic configuration information is used to configure a listening period of the terminal in the discontinuous receiving state, so that the terminal in the discontinuous receiving state receives the public control signal in the listening period. The data interaction module 504 is further configured to: send the periodic configuration signaling to the terminal in the discontinuous reception state.
在该技术方案中, DRX 状态的终端会在设定好的时间区间内进入正 常状态并接收信息, 因而通过配置 DRX 状态的终端的监听周期, 使其在 基站 500发送公共控制信令的时间区间内进行监听, 以使得小区内的所有 终端都能够接收到对应于自身的上下行配置信息, 避免产生数据混乱和交 叉干扰。  In the technical solution, the terminal in the DRX state enters the normal state and receives the information in the set time interval, and thus the monitoring period of the terminal configured in the DRX state is used to send the common control signaling time interval in the base station 500. The monitoring is performed internally, so that all terminals in the cell can receive uplink and downlink configuration information corresponding to themselves, thereby avoiding data confusion and cross interference.
以上结合附图详细说明了本发明的技术方案, 本发明提出了一种控制 信令的传输方法和一种基站, 可以使小区内的终端都直接从公共搜索空间 中获取上下行配置信息, 而无需分别向每个终端单独发送, 有助于减少信 令发送次数, 降低控制信道的开销。  The technical solution of the present invention is described in detail with reference to the accompanying drawings. The present invention provides a method for transmitting control signaling and a base station, which can enable terminals in a cell to directly obtain uplink and downlink configuration information from a common search space. It is not necessary to separately send to each terminal separately, which helps to reduce the number of signaling transmissions and reduce the overhead of the control channel.
以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于 本领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精 神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明 的保护范围之内。  The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. 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. 一种控制信令的传输方法, 其特征在于, 包括: A transmission method for control signaling, comprising:
基站生成公共控制信令, 所述公共控制信令中包含上下行配置信息, 并将所述公共控制信令置于公共搜索空间中;  The base station generates common control signaling, where the common control signaling includes uplink and downlink configuration information, and places the common control signaling in a common search space;
发送所述公共控制信令。  Sending the common control signaling.
2. 根据权利要求 1 所述的控制信令的传输方法, 其特征在于, 所述 公共控制信令中的上下行配置信息位于序号为 3 或 3A 的下行控制信息 中。  The method for transmitting control signaling according to claim 1, wherein the uplink and downlink configuration information in the common control signaling is located in downlink control information with a sequence number of 3 or 3A.
3. 根据权利要求 2 所述的控制信令的传输方法, 其特征在于, 还包 括:  3. The method for transmitting control signaling according to claim 2, further comprising:
所述基站分别使用不同的无线网络临时标识, 对所述上下行配置信息 和所述公共控制信令中的其他信息进行加扰。  The base station uses different radio network temporary identifiers to scramble the uplink and downlink configuration information and other information in the common control signaling.
4. 根据权利要求 1 所述的控制信令的传输方法, 其特征在于, 还包 括:  4. The method for transmitting control signaling according to claim 1, further comprising:
将所述基站的服务终端分为多个用户组; 置信息。  Separating the service terminals of the base station into a plurality of user groups; setting information.
5. 根据权利要求 1 所述的控制信令的传输方法, 其特征在于, 还包 括:  The method for transmitting control signaling according to claim 1, further comprising:
使用序号为 0、 1、 5和 /或 6的子帧发送所述公共控制信令。  The common control signaling is transmitted using subframes numbered 0, 1, 5, and/or 6.
6. 根据权利要求 1 至 5 中任一项所述的控制信令的传输方法, 其特 征在于, 当所述基站的服务终端中存在处于非连续接收状态的终端时, 所 述传输方法还包括:  The method for transmitting control signaling according to any one of claims 1 to 5, wherein when the terminal of the base station has a terminal in a discontinuous reception state, the transmission method further includes :
所述基站生成专用控制信令, 所述专用控制信令中包含所述上下行配 置信息, 并将所述专用控制信令置于所述处于非连续接收状态的终端对应 的专用搜索空间中;  The base station generates dedicated control signaling, where the dedicated control signaling includes the uplink and downlink configuration information, and places the dedicated control signaling in a dedicated search space corresponding to the terminal in the discontinuous reception state;
发送所述专用控制信令。  The dedicated control signaling is sent.
7. 根据权利要求 6 所述的控制信令的传输方法, 其特征在于, 所述 专用控制信令中的上下行配置信息位于寻呼信息或资源分配信息对应的下 行控制信息中。 7. The method for transmitting control signaling according to claim 6, wherein: The uplink and downlink configuration information in the dedicated control signaling is located in the downlink control information corresponding to the paging information or the resource allocation information.
8. 根据权利要求 1 至 5 中任一项所述的控制信令的传输方法, 其特 征在于, 当所述基站的服务终端中存在处于非连续接收状态的终端时, 所 述传输方法还包括:  The method for transmitting control signaling according to any one of claims 1 to 5, wherein when the terminal of the base station has a terminal in a discontinuous reception state, the transmission method further includes :
生成周期配置信令, 所述周期配置信令包含周期配置信息, 所述周期 配置信息用于对处于非连续接收状态的终端的监听周期进行配置, 使得所 述处于非连续接收状态的终端在所述监听周期接收到所述公共控制信令; 向所述处于非连续接收状态的终端发送上述周期配置信令。  And generating periodic configuration signaling, where the periodic configuration signaling includes periodic configuration information, where the periodic configuration information is used to configure a listening period of the terminal in a discontinuous receiving state, so that the terminal in the discontinuous receiving state is in the Receiving the common control signaling in the listening period; sending the periodic configuration signaling to the terminal in the discontinuous receiving state.
9. 一种基站, 其特征在于, 包括:  A base station, comprising:
数据处理模块, 用于生成公共控制信令, 所述公共控制信令中包含上 下行配置信息, 并将所述公共控制信令置于公共搜索空间中;  a data processing module, configured to generate common control signaling, where the common control signaling includes uplink and downlink configuration information, and the common control signaling is placed in a common search space;
数据交互模块, 用于发送所述公共控制信令。  a data interaction module, configured to send the common control signaling.
10. 根据权利要求 9所述的基站, 其特征在于, 所述公共控制信令中 的上下行配置信息位于序号为 3或 3A的下行控制信息中。  The base station according to claim 9, wherein the uplink and downlink configuration information in the common control signaling is located in downlink control information with a sequence number of 3 or 3A.
11. 根据权利要求 10 所述的基站, 其特征在于, 所述数据处理模块 还用于:  The base station according to claim 10, wherein the data processing module is further configured to:
分别使用不同的无线网络临时标识, 对所述上下行配置信息和所述公 共控制信令中的其他信息进行加扰。  The uplink and downlink configuration information and other information in the public control signaling are scrambled by using different wireless network temporary identifiers, respectively.
12. 根据权利要求 9所述的基站, 其特征在于, 所述数据处理模块还 用于:  The base station according to claim 9, wherein the data processing module is further configured to:
将所述基站的服务终端分为多个用户组; 置信息。  Separating the service terminals of the base station into a plurality of user groups; setting information.
13. 根据权利要求 9所述的基站, 其特征在于, 所述数据交互模块还 用于:  The base station according to claim 9, wherein the data interaction module is further configured to:
使用序号为 0、 1、 5和 /或 6的子帧发送所述公共控制信令。  The common control signaling is transmitted using subframes numbered 0, 1, 5, and/or 6.
14. 根据权利要求 9 至 13 中任一项所述的基站, 其特征在于, 当所 述基站的服务终端中存在处于非连续接收状态的终端时, 所述数据处理模 块还用于: 生成专用控制信令, 所述专用控制信令中包含所述上下行配置 信息, 并将所述专用控制信令置于所述处于非连续接收状态的终端对应的 专用搜索空间中; The base station according to any one of claims 9 to 13, wherein, when there is a terminal in a discontinuous reception state in a serving terminal of the base station, the data processing mode The block is further configured to: generate dedicated control signaling, where the dedicated control signaling includes the uplink and downlink configuration information, and place the dedicated control signaling in a dedicated search space corresponding to the terminal in the discontinuous reception state. in;
所述数据交互模块还用于: 发送所述专用控制信令。  The data interaction module is further configured to: send the dedicated control signaling.
15. 根据权利要求 14 所述的基站, 其特征在于, 所述专用控制信令 中的上下行配置信息位于寻呼信息或资源分配信息对应的下行控制信息 中。  The base station according to claim 14, wherein the uplink and downlink configuration information in the dedicated control signaling is located in downlink control information corresponding to paging information or resource allocation information.
16. 根据权利要求 9 至 13 中任一项所述的基站, 其特征在于, 当所 述基站的服务终端中存在处于非连续接收状态的终端时, 所述数据处理模 块还用于: 生成周期配置信令, 所述周期配置信令包含周期配置信息, 所 述周期配置信息用于对处于非连续接收状态的终端的监听周期进行配置, 使得所述处于非连续接收状态的终端在所述监听周期接收到所述公共控制 信令;  The base station according to any one of claims 9 to 13, wherein when the terminal of the base station has a terminal in a discontinuous reception state, the data processing module is further configured to: generate a period Configuring signaling, the periodic configuration signaling includes periodic configuration information, where the periodic configuration information is used to configure a listening period of the terminal in a discontinuous receiving state, so that the terminal in the discontinuous receiving state is in the monitoring Receiving the common control signaling periodically;
所述数据交互模块还用于: 向所述处于非连续接收状态的终端发送上 述周期配置信令。  The data interaction module is further configured to: send the periodic configuration signaling to the terminal in a discontinuous reception state.
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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103491516B (en) * 2013-09-27 2018-05-15 东莞宇龙通信科技有限公司 The transmission method of control signaling and base station
JP6753943B2 (en) * 2016-03-16 2020-09-09 テレフオンアクチーボラゲット エルエム エリクソン(パブル) Common Search Space (CSS) for Paging NB-IOT Devices
CN111182638B (en) * 2016-04-01 2023-04-28 展讯通信(上海)有限公司 User equipment, network side equipment and control method of user equipment
EP3566518A4 (en) * 2017-01-05 2020-09-02 Nokia Technologies Oy Downlink control channel monitoring optimizing for discontinuous reception mode and/or narrowband operation
CN108574989A (en) * 2017-03-14 2018-09-25 深圳市金立通信设备有限公司 A kind of Physical Downlink Control Channel method of sending and receiving and relevant device
CN110611925B (en) * 2018-06-14 2022-03-18 维沃移动通信有限公司 Physical downlink control channel monitoring parameter configuration method, terminal and network side equipment
CN113316229A (en) * 2018-08-31 2021-08-27 华为技术有限公司 Monitoring method and device
CN110139342B (en) * 2019-05-17 2021-07-06 中磊电子(苏州)有限公司 Base station and search space allocation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102547738A (en) * 2011-12-07 2012-07-04 北京邮电大学 Method for controlling channel resource distribution and terminal blind detection method based on same
CN102884752A (en) * 2010-05-05 2013-01-16 高通股份有限公司 Expanded search space for R-PDCCH in LTE-A
WO2013010301A1 (en) * 2011-07-15 2013-01-24 富士通株式会社 Transmission method, search method and apparatus for downlink control signaling
CN103491516A (en) * 2013-09-27 2014-01-01 东莞宇龙通信科技有限公司 Control signal transmission method and base station

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101841823B (en) * 2009-03-16 2012-06-27 电信科学技术研究院 Method and device for discontinuously monitoring control channels in multicarrier system
CN102932884B (en) * 2011-08-12 2019-08-13 中兴通讯股份有限公司 A kind of method and system for realizing DRX

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102884752A (en) * 2010-05-05 2013-01-16 高通股份有限公司 Expanded search space for R-PDCCH in LTE-A
WO2013010301A1 (en) * 2011-07-15 2013-01-24 富士通株式会社 Transmission method, search method and apparatus for downlink control signaling
CN102547738A (en) * 2011-12-07 2012-07-04 北京邮电大学 Method for controlling channel resource distribution and terminal blind detection method based on same
CN103491516A (en) * 2013-09-27 2014-01-01 东莞宇龙通信科技有限公司 Control signal transmission method and base station

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