WO2015043153A1 - Procédé pour transmettre une signalisation de commande et station de base - Google Patents

Procédé pour transmettre une signalisation de commande et station de base 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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WO
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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English (en)
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/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-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

L'invention concerne un procédé pour transmettre une signalisation de commande, lequel procédé consiste en : la génération, par une station de base, d'une signalisation de commande commune qui contient des informations de configuration de liaison montante et de liaison descendante, et le placement de la signalisation de commande commune dans un espace de recherche commun ; et l'envoi de la signalisation de commande commune. L'invention concerne également une station de base. La solution technique de la présente invention peut amener un terminal dans une cellule à acquérir des informations de configuration de liaison montante et de liaison descendante directement à partir d'un espace de recherche commun sans envoyer ces dernières à chaque terminal respectivement et séparément, ce qui aide à réduire le nombre de transmissions de signalisation et à réduire le surdébit de canaux de commande.
PCT/CN2014/074872 2013-09-27 2014-04-06 Procédé pour transmettre une signalisation de commande et station de base WO2015043153A1 (fr)

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CN108574989A (zh) * 2017-03-14 2018-09-25 深圳市金立通信设备有限公司 一种物理下行控制信道发送和接收方法、及相关设备
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