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WO2012139404A1 - Procédé et dispositif pour surveiller une sous-trame d'un système de communication - Google Patents

Procédé et dispositif pour surveiller une sous-trame d'un système de communication Download PDF

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Publication number
WO2012139404A1
WO2012139404A1 PCT/CN2011/085140 CN2011085140W WO2012139404A1 WO 2012139404 A1 WO2012139404 A1 WO 2012139404A1 CN 2011085140 W CN2011085140 W CN 2011085140W WO 2012139404 A1 WO2012139404 A1 WO 2012139404A1
Authority
WO
WIPO (PCT)
Prior art keywords
subframe
uplink
downlink
fixed
dynamic
Prior art date
Application number
PCT/CN2011/085140
Other languages
English (en)
Chinese (zh)
Inventor
郝鹏
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012139404A1 publication Critical patent/WO2012139404A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a method and apparatus for monitoring a subframe of a communication system. Background technique
  • the uplink and downlink configurations of the radio frame are shown in Table 1:
  • D represents a downlink subframe for transmitting a downlink signal
  • U represents an uplink subframe for transmitting an uplink signal
  • S represents a special subframe, and includes three special time slots, that is, a downlink pilot time slot (Downlink Pilot Time Slot) (DwPTS), Guard Period (GP) and Uplink Pilot Time Slot (UpPTS); one uplink subframe or downlink subframe is further divided into two 0.5 ms slots.
  • DwPTS Downlink Pilot Time Slot
  • GP Guard Period
  • UpPTS Uplink Pilot Time Slot
  • the resource allocation in the LTE system is in units of resource blocks (RBs).
  • One RB occupies 12 resource elements (Resource Element, RE) in the frequency domain, and occupies in the time domain.
  • RE resource elements
  • Normal Cyclic Prefix Normal CP
  • the old version of the LTE terminal does not support the dynamic change of the subframe type (uplink or downlink), and the conversion and protection time need to be performed between the uplink and downlink subframes. Any change of the subframe type requires a large amount of protection time overhead and is reduced. The efficiency of the use of resources. Therefore, how to better compatible with the old version of the terminal device, reduce the time required for the conversion time and protection interval required for the uplink and downlink conversion, and improve the efficiency of resource use, is also a problem that needs to be considered. Summary of the invention
  • the main object of the present invention is to provide a method and apparatus for monitoring a subframe of a communication system, which better meets the requirements for dynamic changes of uplink and downlink traffic.
  • a method of monitoring a communication system subframe comprising:
  • the base station sends information for indicating the subframe configuration to the user terminal
  • the user terminal determines the type of the subframe in the radio frame according to the information used to indicate the configuration of the subframe; where the type of the subframe includes one of a fixed uplink subframe, a fixed downlink subframe, a special subframe, and a dynamic subframe.
  • the type of the subframe includes one of a fixed uplink subframe, a fixed downlink subframe, a special subframe, and a dynamic subframe.
  • the information used to indicate the configuration of the subframe is an uplink and downlink configuration, or an uplink and downlink configuration, and control signaling for indicating a dynamic subframe, or for indicating a fixed uplink subframe and a fixed downlink.
  • Subframe and special subframe signaling for indicating a dynamic subframe, or for indicating a fixed uplink subframe and a fixed downlink.
  • the determining the type of the subframe in the radio frame is:
  • the remaining subframes in the radio frame as one or more of a fixed uplink subframe, a fixed downlink subframe, and a special subframe;
  • the special subframe includes a downlink pilot time slot DwPTS, a guard interval GP, and an uplink pilot time slot UpPTS; the fixed uplink subframe and the UpPTS are used for fixed transmission uplink signals, and the fixed downlink subframe and the DwPTS are used for fixed transmission downlink signals; Dynamic subframes are used to transmit uplink signals, downlink signals, or no transmission signals.
  • the control signaling used to indicate the dynamic subframe is broadcast signaling or terminal-specific signaling. Further, when the user terminal receives the signaling for indicating the fixed uplink subframe and the fixed downlink subframe and the special subframe, the determining the type of the subframe in the wireless frame is:
  • the user terminal determines that the subframes other than the fixed uplink subframe, the fixed downlink subframe, and the special subframe are dynamic subframes, where the special subframe includes DwPTS, GP, and UpPTS; the fixed uplink subframe and the UpPTS are used for fixing
  • the uplink signal is transmitted, the fixed downlink subframe and the DwPTS are used for fixed transmission downlink signals; the dynamic subframe is used for transmitting uplink signals, downlink signals, or no transmission signals.
  • the determining the type of the subframe in the radio frame is: the user terminal determines the intersection of the received subframe configurations in the at least two uplink and downlink configurations as the dynamic subframe. .
  • the determining the type of the subframe in the radio frame is:
  • the special subframe includes DwPTS, GP, and UpPTS; the fixed uplink subframe and the UpPTS are used for fixed transmission uplink signals, and the fixed downlink subframe and the DwPTS are used for fixed transmission downlink signals.
  • the determining the type of the subframe in the radio frame is: determining that the subframes other than the fixed uplink subframe, the fixed downlink subframe, and the special subframe in the radio frame are dynamic. Subframe; wherein the dynamic subframe is used to transmit an uplink signal, a downlink signal, or a non-transmission signal.
  • the determining, according to the uplink and downlink configurations, that the type of the subframe in the radio frame is one of a fixed uplink subframe, a fixed downlink subframe, and a special subframe is:
  • the fixed uplink subframe, the fixed downlink subframe, the special subframe/DwPTS/UpPTS determined in the radio frame, and the special uplink subframe in the first uplink and downlink configuration, or the second uplink and downlink configuration There is no overlap between the corresponding sub-frame numbers.
  • the sending, by the base station, the information for indicating the subframe configuration to the user terminal is: the base station adopts the first uplink and downlink configuration and/or the second uplink and downlink configuration by using broadcast signaling or terminal-specific signaling. Send to the user terminal.
  • the previous subframe of the dynamic subframe is a fixed uplink subframe or an UpPTS
  • the latter subframe of the dynamic subframe is a fixed downlink subframe or a DwPTS.
  • the method further includes:
  • the user terminal further configures the determined dynamic subframe according to the preset condition.
  • the user terminal further performs the determined dynamic subframe according to the preset condition.
  • the line configuration is:
  • the previous subframe of the dynamic subframe is an uplink subframe, where the previous subframe is an uplink subframe, and the previous subframe is a fixed uplink subframe.
  • the user terminal further configures the determined dynamic subframe according to the preset condition: when the dynamic subframe is configured as a downlink subframe, the subsequent subframe of the dynamic subframe is a downlink subframe;
  • the downlink subframe is specifically: the latter subframe is a fixed downlink subframe, a special subframe/DwPTS, or a dynamic subframe configured as a downlink subframe.
  • An apparatus for monitoring a subframe of a communication system comprising: a sending unit, a subframe type determining unit, where
  • a sending unit configured to send information used to indicate a subframe configuration
  • the subframe type determining unit determines the type of the subframe in the radio frame according to the received information for indicating the subframe configuration, where the type of the subframe includes a fixed uplink subframe, a fixed downlink subframe, a special subframe, and a dynamic subframe. One or more of the frames.
  • the information used by the sending unit to indicate the subframe configuration is an uplink and downlink configuration, or an uplink and downlink configuration, and control signaling for indicating a dynamic subframe, or for indicating a fixed uplink subframe and a fixed downlink.
  • Subframe and special subframe signaling for indicating a dynamic subframe, or for indicating a fixed uplink subframe and a fixed downlink.
  • the subframe type determining unit is configured to determine, according to the received control signaling for indicating a dynamic subframe, when receiving the uplink and downlink configuration and the control signaling for indicating the dynamic subframe, a dynamic subframe in the frame; determining, according to the received uplink and downlink configurations, the remaining subframes in the radio frame as one or more of a fixed uplink subframe, a fixed downlink subframe, and a special subframe;
  • the control signaling indicating the dynamic subframe is broadcast signaling or terminal-specific signaling.
  • the subframe type determining unit is specifically configured to determine, as the dynamic subframe, an intersection of the received subframe configurations in the at least two uplink and downlink configurations; or, according to the received uplink and downlink configuration, or Signaling indicating fixed uplink subframes and fixed downlink subframes and special subframes, determining A subframe other than a fixed uplink subframe, a fixed downlink subframe, and a special subframe in a radio frame is a dynamic subframe.
  • the subframe type determining unit is further configured to determine, in the radio frame, a subframe that is the same as a subframe number of an uplink subframe in the first uplink configuration and the downlink configuration as a fixed uplink subframe;
  • the subframes with the same subframe number of the downlink subframe in the uplink and downlink configurations are determined as fixed downlink subframes;
  • the special subframes in the radio frame and the first uplink and downlink configuration, or the second uplink and downlink configurations are
  • the sending unit is configured to send the first uplink and downlink configuration and/or the second uplink and downlink configuration by using broadcast signaling or terminal-specific signaling.
  • the device further includes: a dynamic subframe configuration unit, configured to further configure the determined dynamic subframe according to the preset condition.
  • a dynamic subframe configuration unit configured to further configure the determined dynamic subframe according to the preset condition.
  • the dynamic subframe configuration unit is specifically configured to: when the dynamic subframe is configured as an uplink subframe, the previous subframe of the dynamic subframe is an uplink subframe, where the previous subframe is The uplink subframe is specifically: the previous subframe is a fixed uplink subframe, a special subframe UpPTS, or a dynamic subframe configured as an uplink subframe; when the dynamic subframe is configured as a downlink subframe, the dynamic subframe is The subsequent subframe is a downlink subframe, where the subsequent subframe is a downlink subframe, specifically: the latter subframe is a fixed downlink subframe, a special subframe/DwPTS, or a dynamic configured as a downlink subframe. Subframe.
  • the configuration scheme of the subframe in the communication system determines, according to the information used to indicate the configuration of the subframe, the subframes of the fixed uplink subframe, the fixed downlink subframe, and the special subframe, and implements the legacy version of the LTE.
  • the terminal is well compatible, which reduces the protection time overhead required for the sub-frame type to change, and increases the dynamic sub-frame type to better meet the dynamic change requirements of the uplink and downlink traffic, thereby improving the resource usage efficiency. At the same time, it is easier to implement and reduces the cost of redevelopment.
  • FIG. 1 is a schematic diagram of a second type of frame structure in an LTE system
  • FIG. 2 is a schematic structural diagram of an RB in an LTE system
  • 3 is a schematic diagram of an implementation process of a method for monitoring a subframe of a communication system according to the present invention
  • FIG. 4 is a schematic diagram of a subframe configuration of Embodiments 1, 4, and 5 of a method for monitoring a subframe of a communication system according to the present invention
  • FIG. 5 is a schematic diagram of a subframe configuration of a second embodiment of a method for monitoring a subframe of a communication system according to the present invention
  • FIG. 6 is a schematic diagram of a subframe configuration of a third embodiment of a method for monitoring a subframe of a communication system according to the present invention
  • Schematic diagram of the device of the communication system subframe
  • An embodiment of the present invention is: the base station sends information for indicating a subframe configuration to a user terminal; the user terminal determines, according to the information for indicating a subframe configuration, a type of a subframe in the radio frame; where the subframe
  • the types include one or more of a fixed uplink subframe, a fixed downlink subframe, a special subframe, and a dynamic subframe.
  • FIG. 3 shows an implementation flow of a method for monitoring a communication system subframe according to the present invention. As shown in FIG. 3, the method includes the following steps:
  • Step 301 The base station sends information used to indicate subframe configuration to the user terminal.
  • the base station may send uplink and downlink configuration, or uplink and downlink configuration and control signaling, or signaling for indicating a fixed uplink subframe, a fixed downlink subframe, and a special subframe to the user terminal; where, the base station may Transmitting at least two uplink and downlink configurations to the user terminal by using broadcast signaling or terminal-specific signaling; or, the base station sends at least one uplink and downlink configuration to the user terminal by using broadcast signaling or terminal-specific signaling, and simultaneously
  • the control signaling for indicating the dynamic subframe is sent to the user terminal, where the control signaling may be broadcast signaling or terminal-specific signaling; or the base station is used to indicate the fixed uplink subframe and the fixed downlink subframe.
  • the signaling of the frame and the special subframe is sent to the user terminal.
  • the base station when the base station sends the uplink and downlink configurations to the user terminal, the base station may pass multiple broadcast letters.
  • the terminal or the terminal-specific signaling is sent, and may also be sent through a broadcast signaling or terminal-specific signaling; where the broadcast signaling refers to signaling sent by the base station to all user terminals; the terminal-specific signaling refers to the base station. Signaling sent to a certain group or group of user terminals.
  • Step 302 The user terminal determines a type of the subframe in the radio frame.
  • the user terminal may determine, according to the control signaling for indicating a dynamic subframe, which subframes in the radio frame are dynamic subframes; and determine, according to the uplink and downlink configurations, the remaining subframes in the radio frame as fixed uplink sub-frames.
  • the user terminal determines the intersection of the received subframe configurations in the at least two uplink and downlink configurations as a dynamic subframe; and determines, according to the uplink and downlink configurations, a fixed uplink subframe, a fixed downlink subframe, and a special subframe in the radio frame. Or one or more of the frames; or, the user terminal determines one or more of a fixed uplink subframe, a fixed downlink subframe, and a special subframe in the radio frame according to the uplink and downlink configurations; determining a fixed uplink subframe in the radio frame A subframe other than a frame, a fixed downlink subframe, and a special subframe is a dynamic subframe;
  • the user terminal determines, according to the uplink and downlink configurations, that the type of the subframe in the radio frame is one or more of a fixed uplink subframe, a fixed downlink subframe, and a special subframe; and the fixed uplink subframe determined in the radio frame.
  • the fixed sub-frames of the fixed downlink sub-frame, the special sub-frame/DwPTS/UpPTS are not coincident.
  • the user terminal determines, according to the received signaling for indicating the fixed uplink subframe, the fixed downlink subframe, and the special subframe, the fixed uplink subframe, the fixed downlink subframe, and the special subframe in the radio frame;
  • a fixed uplink subframe, a fixed downlink subframe, and a subframe other than the special subframe are dynamic subframes.
  • the previous subframe of the dynamic subframe is a fixed uplink subframe or an UpPTS, and the latter of the dynamic subframe.
  • the subframe is a fixed downlink subframe or D wPTS.
  • the type determination of the subframe in the radio frame may be performed according to any two uplink and downlink configurations in Table 1.
  • the any two uplink and downlink configurations are referred to as a first uplink, a downlink configuration, and a second uplink.
  • the subframe with the same subframe number is determined to be a fixed downlink subframe; the subframe with the same subframe number of the special uplink/DwPTS/UpPTS in the first uplink configuration, the second uplink configuration, or the second uplink configuration in the downlink configuration is determined.
  • special subframes / DwPTS / UpPTS For special subframes / DwPTS / UpPTS.
  • the uplink and downlink configurations with the configuration index of 2 and 0 in Table 1 For example, select the uplink and downlink configurations with the configuration index of 2 and 0 in Table 1. It is known from Table 1 that in the uplink and downlink configurations with the configuration index of 2, the subframe number of the uplink subframe is 2, 7, and the wireless will be wireless. The subframe with the subframe number 2 and 7 in the frame is determined to be a fixed uplink subframe. In the uplink and downlink configuration where the index is 0, the subframe number of the downlink subframe is 0, 5, and the subframe number in the wireless frame is The subframes of 0 and 5 are determined to be fixed downlink subframes.
  • the determination of the special subframe/DwPTS/UpPTS in the radio frame may be based on the uplink and downlink configuration of the configuration index of 2, or may be 0 according to the configuration index.
  • the uplink and downlink configurations are determined.
  • the subframes whose subframe numbers are 1, 6 are determined to be special subframes/DwPTS/UpPTS in the radio frame;
  • the uplink and downlink configurations of 0 are determined, it is determined that the subframes whose subframe numbers are 1, 6 in the radio frame are special subframes/DwPTS/UpPTS.
  • the undetermined type in the radio frame is a fixed uplink subframe, or a special subframe/UpPTS, the undetermined type
  • the subframe is determined to be a dynamic subframe; and/or,
  • the subframe of the undetermined type in the radio frame is a fixed downlink subframe or a special subframe /DwPTS
  • the subframe of the undetermined type is determined as a dynamic subframe.
  • the subframes whose subframe numbers are 2 and 7 in the radio frame are determined as subframes in which the fixed uplink subframe and the subframe number is 0 and 5 are determined.
  • the subframe with the subframe number of 1 is determined as the special subframe/DwPTS/UpPTS; then the subframe with the subframe number of 3, 4, 8, and 9 is undetermined, and is determined as the dynamic subframe.
  • the special subframe includes DwPTS, GP, and UpPTS; the fixed uplink subframe and the UpPTS are used for fixed transmission of the uplink signal, and the fixed downlink subframe and the DwPTS are used for fixed transmission of the downlink signal; it should be understood that the fixed fixed uplink subframe is determined and fixed.
  • the sub-frame numbers corresponding to the downlink subframe, the special subframe/DwPTS/UpPTS are not coincident.
  • Step 303 Perform configuration on the determined dynamic subframe according to the preset condition.
  • the dynamic subframe may be configured as an uplink subframe for transmitting an uplink signal, or may be configured as a downlink subframe for transmitting downlink.
  • the signal may be configured to not transmit any signal; wherein, when the dynamic subframe is configured as an uplink subframe, the previous subframe of the dynamic subframe is an uplink subframe; wherein the previous subframe is an uplink
  • the subframe is specifically: the previous subframe is a fixed uplink subframe, a special subframe/UpPTS, or a dynamic subframe configured as an uplink subframe.
  • the next subframe of the dynamic subframe is a downlink subframe, where the downlink subframe is a downlink subframe, and the latter subframe is a fixed downlink subframe.
  • the base station and the user terminal may respectively load the downlink signal and the uplink signal to be transmitted according to the uplink and downlink configurations. And transmitting to the dynamic subframe of the fixed downlink subframe/the downlink subframe and the dynamic subframe configured as the uplink subframe, where the user terminal receives the signal sent by the base station,
  • the feedback signal is loaded into a fixed uplink subframe/dynamic subframe configured as an uplink subframe to perform feedback to notify the base station whether the data is correctly received.
  • the feedback signal is specifically for the user terminal.
  • the received downlink signal transmitted by the fixed downlink subframe is fed back.
  • Embodiment 1 The base station sends the uplink and downlink configurations with the configuration index of 0 in Table 1 to the user terminal through a broadcast signaling or terminal-specific signaling, and the user terminal determines the fixed downlink subframe and the special in the radio frame according to the uplink and downlink configurations. Specifically, if the subframes in the radio frame that are the same as the subframe numbers of the uplink and downlink subframes of the uplink configuration and the special subframe are configured as fixed downlink subframes and special subframes, the subframe is determined to be a fixed downlink subframe and a special subframe. In a radio frame, a subframe with subframe numbers 0 and 5 is a fixed downlink subframe, and a subframe with a subframe number of 1, 6 is a special subframe;
  • the base station sends the uplink and downlink configurations of the configuration index 2 in Table 1 to the user terminal through a broadcast signaling or terminal-specific signaling, and the user terminal determines the fixed uplink subframe in the radio frame according to the uplink and downlink configurations.
  • the subframe that is the same as the subframe number of the uplink subframe in the uplink and downlink configurations in the radio frame is determined to be a fixed uplink subframe, and the subframe number is 2 in the radio frame.
  • the subframe of 7 is a fixed uplink subframe;
  • a subframe configuration of the radio frame as shown in FIG. 4 can be obtained, where " ⁇ " represents a fixed downlink subframe, “" represents a fixed uplink subframe, “ ⁇ ” represents a special subframe, and “ ⁇ ” represents a Dynamic subframes; subframes with subframe numbers 0 and 5 are fixed downlink subframes, subframes with subframe numbers 2 and 7 are fixed uplink subframes, and subframes with subframe numbers 1 and 6 are special subframes.
  • the subframe with the subframe number of 3, 4, 8, and 9 is a dynamic subframe;
  • the dynamic subframe may be further configured according to the influence of factors such as the communication load.
  • the dynamic subframe with the subframe numbers 3 and 4 is further configured as an uplink subframe.
  • the dynamic subframes with subframe numbers of 8, 9 are further configured as downlink subframes for transmitting downlink signals; for radio frames A+1, the dynamics of subframe numbers are 3, 8, and 9.
  • the subframe is further configured as an uplink subframe for transmitting an uplink signal
  • the dynamic subframe of subframe number 4 is further configured as a downlink subframe for transmitting a downlink signal.
  • the base station sends the uplink and downlink configurations with the configuration index of 3 in Table 1 to the user terminal through a broadcast signaling or terminal-specific signaling, and the user terminal determines the solid in the wireless frame according to the uplink and downlink configurations.
  • Determining a downlink subframe specifically, determining, in a radio frame, a subframe having the same subframe number as that of the uplink and downlink subframes of the uplink and downlink configuration configuration index 3 as a fixed downlink subframe, where the subframe number is in the radio frame
  • the subframes of 0, 5, 6, 7, 8, and 9 are fixed downlink subframes;
  • the base station sends the uplink and downlink configurations of the configuration index 5 in Table 1 to the user terminal through a broadcast signaling or terminal-specific signaling, and the user terminal determines the fixed uplink subframe in the radio frame according to the uplink and downlink configurations.
  • the subframes in the radio frame that are identical to the subframe numbers of the uplink subframe and the special subframe in the uplink and downlink configurations with the configuration index of 5 are determined as fixed uplink subframes and special subframes.
  • the subframe with the subframe number 2 is a fixed uplink subframe
  • the subframe with the subframe number 1 is a special subframe.
  • a subframe configuration of the radio frame as shown in FIG. 5 can be obtained, where "" represents a fixed downlink subframe, “" represents a fixed uplink subframe, “ ⁇ ” represents a special subframe, and “port” represents dynamic Subframes; subframes with subframe numbers 0, 5, 6, 7, 8, and 9 are fixed downlink subframes, subframes with subframe number 2 are fixed uplink subframes, and subframes with subframe number 1 are a special subframe, and a subframe whose subframe number is 3 or 4 is a dynamic subframe;
  • the dynamic subframe may be further configured according to the influence of factors such as the communication load; referring to FIG. 5, for the radio frame A, the dynamic subframe with the subframe number 3 is further configured as an uplink subframe, and is used for Transmitting an uplink signal, a dynamic subframe having a subframe number of 4 is further configured as a downlink subframe for transmitting a downlink signal; for a radio frame A+1, a dynamic subframe having a subframe number of 3, 4 is further configured as An uplink subframe is used to transmit an uplink signal.
  • the base station sends the uplink and downlink configurations of the configuration index 3 in Table 1 to the user terminal through a broadcast signaling or terminal-specific signaling, and the user terminal determines the fixed downlink subframe in the radio frame according to the uplink and downlink configurations;
  • the subframes in the radio frame that are the same as the subframe numbers of the uplink and downlink subframes of the uplink and downlink configuration configuration index 3 are determined to be fixed downlink subframes, and the subframe numbers are 0, 5, and 6 in the radio frame.
  • the subframes of 7, 8, and 9 are fixed downlink subframes;
  • the base station sends the uplink and downlink configurations of the configuration index 5 in Table 1 to the user terminal through a broadcast signaling or terminal-specific signaling, and the user terminal determines the fixed uplink subframe in the radio frame according to the uplink and downlink configurations.
  • the subframes in the radio frame that are identical to the subframe numbers of the uplink subframe and the special subframe in the uplink and downlink configurations with the configuration index of 5 are determined as fixed uplink subframes and special subframes.
  • the subframe with the subframe number 2 is a fixed uplink subframe
  • the subframe with the subframe number 1 is a special subframe.
  • a subframe configuration of the radio frame as shown in FIG. 6 can be obtained, where " ⁇ " represents a fixed downlink subframe, represents a fixed uplink subframe, "country” represents a special subframe, and "port” represents a dynamic sub-frame.
  • the subframe with the subframe number of 0, 5, 6, 7, 8, and 9 is a fixed downlink subframe
  • the subframe with the subframe number 2 is a fixed uplink subframe
  • the subframe with the subframe number 1 is special.
  • the subframe, the subframe with the subframe number of 3, 4 is a dynamic subframe;
  • the dynamic subframe may be further configured according to the influence of factors such as the communication load; referring to FIG. 6, for the radio frame A, the dynamic subframe with the subframe number 3 is further configured as an uplink subframe, and is used to The uplink subframe is transmitted, and the dynamic subframe with the subframe number 4 is further configured as a downlink subframe for transmitting the downlink signal.
  • the dynamic subframe with the subframe number of 3 and 4 is not further processed. Configuration, not used to transmit any signals.
  • the base station sends the uplink and downlink configurations of the uplink and downlink configuration indexes in Table 1 to the user terminal through a broadcast signaling or terminal-specific signaling.
  • the base station notifies the user that the index of the dynamic subframe is 3, 4, 8, or 9 through a broadcast signaling or terminal-specific signaling; the subframes other than the dynamic subframe are 0, 1, 2, 5, 6, 7.
  • the user determines, according to the subframe attributes specified in the uplink and downlink configuration index 0, the attributes of the subframes other than the dynamic subframe are: subframes 0 and 5 are fixed downlink subframes, and 1, 6 are special subframes, and 2, 7 are fixed.
  • a subframe configuration of the radio frame as shown in FIG. 4 can be obtained, where " ⁇ " represents a fixed downlink subframe, represents a fixed uplink subframe, "country” represents a special subframe, and "port"
  • a sub-frame with sub-frame numbers of 0 and 5 is a fixed downlink sub-frame, a sub-frame number of 2, 7 is a fixed uplink sub-frame, and a sub-frame number of 1, 6 is a special sub-frame.
  • a subframe whose subframe number is 3, 4, 8, or 9 is a dynamic subframe;
  • the dynamic subframe may be further configured according to the influence of factors such as the communication load.
  • the dynamic subframe with the subframe numbers 3 and 4 is further configured as an uplink subframe.
  • the dynamic subframes with subframe numbers of 8, 9 are further configured as downlink subframes for transmitting downlink signals;
  • the dynamics of subframe numbers are 3, 8, and 9.
  • the subframe is further configured as an uplink subframe for transmitting an uplink signal;
  • the dynamic subframe having a subframe number of 4 is further configured as a downlink subframe for transmitting a downlink signal;
  • the base station notifies the user terminal subframes 0 and 5 as fixed downlink subframes by using one broadcast signaling or terminal-specific signaling, where 1, 6 are special subframes, and 2, 7 are fixed uplink subframes.
  • the user terminal can determine that the remaining subframes 3, 4, 8, and 9 are dynamic subframes.
  • a subframe configuration of the radio frame as shown in FIG. 4 can be obtained, where "" represents a fixed downlink subframe, ", represents a fixed uplink subframe, " ⁇ " represents a special subframe, and "port” represents a Dynamic subframes; subframes with subframe numbers 0 and 5 are fixed downlink subframes, subframes with subframe numbers 2 and 7 are fixed uplink subframes, and subframes with subframe numbers 1 and 6 are special subframes.
  • the subframe with the subframe number of 3, 4, 8, and 9 is a dynamic subframe;
  • the dynamic subframe may be further configured according to the influence of factors such as the communication load.
  • the dynamic subframe with the subframe numbers 3 and 4 is further configured as an uplink subframe.
  • the dynamic subframes with subframe numbers of 8, 9 are further configured as downlink subframes for transmitting downlink signals;
  • the dynamics of subframe numbers are 3, 8, and 9.
  • the subframe is further configured as an uplink subframe for transmitting an uplink signal;
  • the dynamic subframe having a subframe number of 4 is further configured as a downlink subframe for transmitting a downlink signal;
  • FIG. 7 is a block diagram showing the structure of the apparatus for monitoring a communication system subframe of the present invention, as shown in Figure 7.
  • the apparatus includes a transmitting unit 71 and a subframe type determining unit 72.
  • the sending unit 71 sends information for indicating a subframe configuration.
  • the subframe type determining unit 72 is configured to receive the indicator for the indicator.
  • the information of the frame configuration determines the type of the subframe in the radio frame.
  • the type of the subframe includes one or more of a fixed uplink subframe, a fixed downlink subframe, a special subframe, and a dynamic subframe.
  • the information sent by the sending unit 71 for indicating the subframe configuration is an uplink and downlink configuration, or an uplink and downlink configuration, and control signaling for indicating a dynamic subframe, or for indicating a fixed uplink subframe, Signaling of fixed downlink subframes and special subframes;
  • the subframe type determining unit 72 when receiving the uplink and downlink configuration and the control signaling for indicating the dynamic subframe, is specifically used according to the received control signaling for indicating the dynamic subframe. Determining a dynamic subframe in the radio frame; determining, according to the received uplink and downlink configurations, the remaining subframes in the radio frame as one or more of a fixed uplink subframe, a fixed downlink subframe, and a special subframe;
  • the control signaling used to indicate the dynamic subframe is broadcast signaling or terminal-specific signaling.
  • the broadcast signaling refers to signaling sent by the base station to all user terminals;
  • the terminal-specific signaling refers to the base station sends to a certain base station. Signaling of a group or group of user terminals.
  • the subframe type determining unit 72 is specifically configured to determine, as the dynamic subframe, an intersection of the received subframe configurations in the at least two uplink and downlink configurations; according to the received uplink and downlink configuration or for indicating Determining the signaling of the fixed uplink subframe and the fixed downlink subframe and the special subframe, and determining that the subframes other than the fixed uplink subframe, the fixed downlink subframe, and the special subframe in the radio frame are dynamic subframes;
  • the subframe type determining unit 72 is further configured to determine, in the radio frame, a subframe that is the same as a subframe number of an uplink subframe in the first uplink configuration and the downlink configuration as a fixed uplink subframe;
  • the subframes with the same subframe number of the downlink subframe in the downlink configuration are determined to be fixed downlink subframes; the special subframes in the radio frame with the first uplink and downlink configuration, or the second uplink and downlink configuration are located here.
  • the sub-frame type determining unit 72 is further configured to: when the radio frame is not determined When the previous subframe of the subframe of the type is a fixed uplink subframe or a special subframe/UpPTS, the subframe of the undetermined type is determined as a dynamic subframe; and/or, when the type of the radio frame is not determined When the next subframe of the subframe is a fixed downlink subframe or a special subframe/DwPTS, the subframe of the undetermined type is determined as a dynamic subframe.
  • the sending unit 71 is configured to send the first uplink and downlink configuration and/or the second uplink and downlink configuration by using broadcast signaling or terminal-specific signaling, where the broadcast signaling or the terminal is dedicated.
  • the uplink subframe and/or the subframe number of the special subframe/UpPTS in the first or second uplink configuration information that is signaled may be determined as the fixed uplink subframe and/or the special subframe determined in the radio frame.
  • the subframe number of the frame/UpPTS; the downlink subframe and/or the special subframe/DwPTS subframe number in the first or second uplink and downlink configuration information transmitted by the broadcast signaling or the terminal-specific signaling may be determined as The fixed downlink subframe and/or the special subframe/subframe number of the DwPTS determined in the radio frame.
  • the device may further include a dynamic subframe configuration unit 73, configured to further configure the determined dynamic subframe according to a preset condition.
  • the dynamic subframe configuration unit 73 is specifically configured to: when the dynamic subframe is configured as an uplink subframe, the previous subframe of the dynamic subframe is an uplink subframe, where the previous subframe
  • the uplink subframe is specifically: the previous subframe is a fixed uplink subframe, a special subframe/UpPTS, or a dynamic subframe configured as an uplink subframe; when the dynamic subframe is configured as a downlink subframe, the dynamic The subsequent subframe of the subframe is a downlink subframe, where the latter subframe is a downlink subframe, specifically: the latter subframe is a fixed downlink subframe, a special subframe/DwPTS, or is configured as a downlink subframe. Dynamic sub-frame.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour surveiller une sous-trame d'un système de communication. Le procédé comprend les étapes suivantes : une station de base envoie des informations indiquant la configuration de sous-trame à un terminal d'utilisateur; le terminal d'utilisateur détermine le type de la sous-trame dans une trame sans fil selon les informations indiquant la configuration de sous-trame; et en outre configure la sous-trame dynamique déterminée comme ayant été obtenue selon des conditions prédéfinies. L'invention concerne également un dispositif pour surveiller une sous-trame d'un système de communication, les sous-trames du type tel qu'une trame de liaison montante fixe, une sous-trame de liaison descendante fixe et une sous-trame spéciale et ainsi de suite sont déterminées comme ayant été obtenues selon les informations indiquant la configuration de sous-trame, ce qui aboutit à une bonne compatibilité avec les terminaux LTE de version ancienne, réduisant la marge de temps de protection nécessaire pour changer le type de la sous-trame. De plus, la demande de changement dynamique du trafic de liaison montante/descendante est mieux satisfaite par l'augmentation du nombre des types de la sous-trame dynamique, améliorant l'efficacité d'utilisation des ressources, et en même temps, elle est plus facile à mettre en œuvre, ce qui diminue les coûts de redéveloppement.
PCT/CN2011/085140 2011-04-15 2011-12-31 Procédé et dispositif pour surveiller une sous-trame d'un système de communication WO2012139404A1 (fr)

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CN102740330A (zh) 2012-10-17
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CN107466048B (zh) 2020-05-05
CN107182065A (zh) 2017-09-19
CN107466048A (zh) 2017-12-12

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