WO2015042892A1 - Procédé de transmission d'informations, station de base, équipement d'utilisateur, et système de communication - Google Patents

Procédé de transmission d'informations, station de base, équipement d'utilisateur, et système de communication Download PDF

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Publication number
WO2015042892A1
WO2015042892A1 PCT/CN2013/084523 CN2013084523W WO2015042892A1 WO 2015042892 A1 WO2015042892 A1 WO 2015042892A1 CN 2013084523 W CN2013084523 W CN 2013084523W WO 2015042892 A1 WO2015042892 A1 WO 2015042892A1
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WIPO (PCT)
Prior art keywords
information
time window
sib1
sib2
control information
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PCT/CN2013/084523
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English (en)
Chinese (zh)
Inventor
余政
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2013/084523 priority Critical patent/WO2015042892A1/fr
Priority to CN201380001610.7A priority patent/CN104904175B/zh
Publication of WO2015042892A1 publication Critical patent/WO2015042892A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method for transmitting information, and to a base station, a user equipment, and a communication system.
  • the system information includes a master information block (MIB) and one or more system information blocks (SIBs, system). Information blocks).
  • System information block has multiple types, such as system information block type 1 (SIB1, system information block type 1), system information block type 2 (SIB2, system information block type 2) Etc.
  • SIB1 system information block type 1
  • SIB2 system information block type 2
  • UE User equipment
  • PDCCH physical downlink control channel
  • PDSCH physical downlink shared Channel
  • the time domain resource used by the transmission system information is in units of radio frames, and each radio frame includes 10 subframes, and the duration of each subframe is 1 millisecond ms.
  • the same MIB is repeatedly transmitted 4 times in 40 ms, and the same SIB1 is repeatedly transmitted 4 times in 80 ms.
  • the SI message is transmitted one or more times in the time window configured by SIB1. The size and period of the time window in which the SIB1 configures the SI transmission.
  • the present invention considers that the user equipment may be in a location with poor channel quality such as a basement, and needs to perform enhanced transmission of system information, that is, it is necessary to increase the number of transmissions of system information within a certain time window, thereby enhancing the coverage range.
  • the control information for scheduling SIB1 and SIB2 also needs to be enhanced.
  • the base station or the UE needs to determine the enhanced MIB, or SIB1, or schedule the control information of the SIB1, or schedule the control information of the SIB2.
  • Time window of transmission, And the MIB transmitted in the time window, or SIB1, or the control information of scheduling SIB1, or the control information content of scheduling SIB2 is not updated.
  • the UE when the UE has not detected the SIB2, the UE does not know the system information update time window configuration included in the SIB2.
  • the MIB of multiple transmissions, or SIB1, or the control information of scheduling SIB1, or scheduling SIB2 may be scheduled.
  • the control information is combined to improve MIB, or SIB1, or to schedule control information of SIB1, or to schedule detection performance of SIB2.
  • the base station or the UE needs to determine an enhanced MIB, or SIB1, or to schedule control information of the SIB1, or to schedule a time window for control information transmission of the SIB2, so that the UE is in the time window for the MIB, or SIB1. Or scheduling the control information of the SIB1, or scheduling the multiple transmissions of the control information of the SIB2 to perform information combining to improve the MIB, or SIB1, or to schedule the control information of the SIB1, or to schedule the reliability of the control information transmission of the SIB2.
  • the technical problem to be solved by the present invention is to provide a method for transmitting information, a base station, a user equipment, and a communication system, which can perform enhanced transmission on MIB, SIB1, SIB2, control information of scheduling SIB1, or control information of scheduling SIB2.
  • a first aspect of the present invention provides a method for transmitting information, including: determining a time window of the first information enhanced transmission, wherein the first information content transmitted in the time window is unchanged, and the first information is MIB, SIB1.
  • SIB2 any one of first control information for scheduling SIB1 or second control information for scheduling SIB2; transmitting the first information in a time window, and repeatedly transmitting the first information multiple times within a time window, wherein, when the first information is the MIB, the number of repeated transmissions of the MIB in the time window is greater than 4 times, or when the first information is SIB1, the number of repeated transmissions of the SIB1 in the time window is greater than 4 times, or When the information is SIB2, the number of repeated transmissions of SIB2 in the time window is K times, K is a fixed integer greater than 1, or, when the first information is the first control information or the second control information, in the time window The number of repeated transmissions of a control information or second control information is greater than one.
  • the repeatedly transmitting the first information in the time window includes: in the time window, the subframe used for repeatedly transmitting the first information is Specified.
  • the repeatedly transmitting the first information in the time window includes: when the first information is the SIB1 or the first control information, The subframe used for the repeated transmission of the first information is configured by the MIB; when the first information is the SIB2 or the second control information, the subframe used for repeatedly transmitting the first information is configured by the MIB or the SIB1.
  • the repeatedly transmitting the first information in the time window includes: using the same modulation coding mode in the time window and/or using the same size
  • the frequency resource repeatedly transmits the first information multiple times.
  • determining, by using a time window of the first information enhancement transmission, the time window of the first information enhancement transmission is determined according to a preset, where the preset includes a starting frame number of a predetermined time window, a starting subframe number of a predetermined time window, a starting OFDM number of a predetermined time window, a length of time of a predetermined time window, and a predetermined two adjacent One or more of the time intervals of the time window.
  • the time window configuration parameter determines a time window for the first information enhanced transmission, and notifies the user equipment of the time window configuration parameter.
  • the time window configuration parameter is notified to the user equipment, including :
  • the time window configuration parameter is included in the SIB1 or MIB, and the time window configuration parameter is notified to the user equipment through the SIB1 or the MIB.
  • the time window configuration parameter is notified to the user equipment, including :
  • the time window configuration parameters are included in the MIB, and the time window configuration parameters are notified to the user equipment through the MIB.
  • the starting frame number of the time window of the first information enhanced transmission determined by the first base station is The starting frame number of the time window of the first information enhanced transmission determined by the second base station is different; and/or the starting subframe number of the time window of the first information enhanced transmission determined by the first base station and the determined by the second base station The starting subframe number of the time window of the first information enhanced transmission is different; and/or the starting OFDM number of the time window of the first information enhanced transmission determined by the first base station and the first information enhanced transmission determined by the second base station The start OFDM number of the time window is different; and/or, the time length of the time window of the first information enhanced transmission determined by the first base station is different from the time length of the time window of the first information enhanced transmission determined by the second base station And/or the time interval of the time window of two adjacent enhanced transmissions of the first information enhancement transmission determined by the first base station and the time window of two adjacent enhanced transmissions of the first information enhancement transmission determined by the first base station and the time window of two adjacent enhanced transmissions of the first
  • the repeatedly transmitting the first information in the time window includes: carrying the first control information, the second control information, or the The first RNTI scrambling is used on the downlink control channel of the three control information to indicate that the system information is not updated, or the second RNTI scrambling is used to indicate that the system information is updated; or the first is adopted on the PDSCH carrying the SIB1, the SIB2, or the SI.
  • RNTI scrambling to indicate that system information has not been updated, or using a second RNTI scrambling to indicate that system information is updated; or adding an indication field in the DCI of scheduling SIB1, SIB2 or SI to indicate whether system information is updated; or using scheduling Redundant bits or padding bits in the DCI of SIB1, SIB2 or SI to indicate whether system information has been updated.
  • the repeatedly sending the first information in the time window includes: by carrying the first control information, the second control information, or the The RNTI scrambled on the downlink control channel of the three control information indicates that the N system information in the M system information is updated, where M, N is an integer, M is greater than or equal to 2, and N is less than or equal to M; or by carrying SIB1, SIB2 Or the RNTI scrambled on the PDSCH of the SI to indicate that the N system information in the M system information is updated, where M, N is an integer, M is greater than or equal to 2, N is less than or equal to M; or is scheduling SIB1, SIB2 or SI
  • An indication field is added in the DCI to indicate that N system information in the M system information is updated, where M, N is an integer, M is greater than or equal to 2, and N is less than or equal to M; or redundancy in DCI using scheduling SIB1, SIB2, or SI
  • a second aspect of the present invention provides a method for transmitting information, including: determining a time window of the first information enhanced transmission, wherein the first information content transmitted in the time window is unchanged, and the first information is MIB, SIB1.
  • SIB2 any one of first control information for scheduling SIB1 or second control information for scheduling SIB2; receiving first information within a time window, and receiving a first multiple of repeated transmissions within a time window Information, wherein when the first information is an MIB, more than 4 repeated transmissions of the MIB are received within the time window, or when the first information is SIB1, more than 4 repeated transmissions of SIB1 are received within the time window, Or, when the first information is SIB2, receiving K times of repeated transmissions of SIB2 in a time window, K is a fixed integer greater than 1, or, when the first information is the first control information or the second control information, receives more than one repeated transmission of the first control information or the second control information in the time window.
  • the receiving, by the time window, the first information that is repeatedly sent repeatedly includes: The frame is pre-defined; the first information that is repeatedly transmitted is received a plurality of times in a predetermined subframe.
  • the receiving, by the time window, the first information that is repeatedly sent repeatedly includes: when the first information is the SIB1 or the first control information, The subframe used for repeatedly transmitting the first information is configured by the MIB; when the first information is the SIB2 or the second control information, The subframe used for repeatedly transmitting the first information is configured by the MIB or the SIB1; and the first information that is repeatedly transmitted multiple times is received on the configured subframe.
  • the receiving, by the time window, the first information that is repeatedly sent repeatedly includes: combining the received first information that is repeatedly sent, The combined information is detected.
  • the receiving, by the time window, the first information that is repeatedly sent is: using the same modulation and decoding mode and/or using the same size in the time window.
  • the time-frequency resource receives the first information that is repeatedly transmitted multiple times.
  • determining a time window of the first information enhanced transmission includes: determining, according to a preset, a time window of the first information enhanced transmission, where the preset includes a starting frame number of a predetermined time window, a starting subframe number of a predetermined time window, a starting OFDM number of a predetermined time window, a length of time of a predetermined time window, and a predetermined two adjacent One or more of the time intervals of the time window.
  • determining a time window of the first information enhanced transmission includes: obtaining a time window configuration parameter of a time window of the first information enhanced transmission, where the time window configuration parameter includes One or more of a starting frame number of the time window, a starting subframe number of the time window, a starting OFDM number of the time window, a time length of the time window, and a time interval between two adjacent time windows;
  • the window configuration parameter determines a time window for the first information enhanced transmission.
  • obtaining a time window of the first information enhanced transmission includes: receiving the SIB1 or MIB including the time window configuration parameter; and obtaining the time window configuration parameter from the SIB1 or the MIB.
  • obtaining a time window of the first information enhanced transmission The time window configuration parameters include: receiving the MIB including the time window configuration parameter; and obtaining the time window configuration parameter from the MIB.
  • the receiving, by the time window, the first information that is repeatedly sent repeatedly includes: carrying the first control information, the second control information, or Decoding on the downlink control channel of the third control information according to the first RNTI and successfully detecting the downlink control channel, determining that the system information has not been updated, or descrambling according to the second RNTI and successfully detecting the downlink control channel, determining the system The information is updated; or the PDSCH is descrambled according to the first RNTI and the PDSCH is successfully detected on the PDSCH carrying the SIB1, the SIB2, or the SI, and then it is determined that the system information is not updated, or the second RNTI is descrambled and the PDSCH is successfully detected.
  • the system information is updated; or the indication field is obtained in the DCI of the scheduling SIB1, SIB2 or SI, whether the system information is updated according to the indication field, or the redundancy bit or the padding bit in the DCI of the scheduling SIB1, SIB2 or SI, according to Redundant bits or padding bits determine if system information has been updated.
  • the receiving, by the time window, the first information that is repeatedly sent repeatedly includes: carrying the first control information, the second control information, or Determining the RNTI on the downlink control channel of the third control information of the SI to determine that the N system information in the M system information is updated, where M, N is an integer, M is greater than or equal to 2, and N is less than or equal to M; RNTI descrambling on the PDSCH carrying SIB1, SIB2 or SI to determine that N system information in the M system information is updated, where M, N is an integer, M is greater than or equal to 2, N is less than or equal to M; or is scheduling SIB1 Obtaining an indication field in the DCI of the SIB2 or the SI, and determining, according to the indication field, that the N pieces of system information in the M system information are updated, where M, N are integers, M is greater than or equal to 2, N is less than or equal to M; or scheduling SIB1, SIB
  • a third aspect of the present invention provides a base station, where the base station includes a determining module and a sending module, wherein the determining module is configured to determine a time window of the first information enhanced transmission, wherein the first information content transmitted in the time window is unchanged
  • the first information is any one of MIB, SIB1, SIB2, first control information for scheduling SIB1, or second control information for scheduling SIB2
  • the sending module is configured to send the first information in a time window, And repeatedly transmitting the first information multiple times in the time window, wherein when the first information is the MIB, the number of repeated transmissions of the MIB in the time window is greater than 4 times, or when the first information is SIB1, in the time window
  • the number of repeated transmissions of SIB1 is greater than 4 times, or when the first information is SIB2, the number of repeated transmissions of SIB2 in the time window is K times, K is a fixed integer greater than 1, or when the first information is the first control In the case of the information or the second control information, the number of times the
  • the subframe used for repeatedly transmitting the first information in the time window is predetermined.
  • the subframe used for the repeated transmission of the first information is configured by the MIB; when the first information is the SIB2 or the second control information, the subframe used for repeatedly transmitting the first information is configured by the MIB or the SIB1.
  • the sending module is configured to use the same modulation and coding mode in the time window and/or repeatedly send the first information by using the same-sized time-frequency resource. .
  • the determining module is configured to determine, according to a preset, a time window for enhancing the transmission of the first information, where the preset includes a predetermined time window a starting frame number, a starting subframe number of a predetermined time window, a starting OFDM number of a predetermined time window, a length of time of a predetermined time window, and a predetermined time interval between two adjacent time windows One or more.
  • the determining module includes the first unit and the second unit, wherein the first unit is configured to determine a time window configuration of the time window of the first information enhanced transmission
  • the parameter, the time window configuration parameter includes a start frame number of the time window, a start subframe number of the time window, a start OFDM number of the time window, a time length of the time window, and one of time intervals of two adjacent time windows.
  • the second unit is configured to determine a time window of the first information enhanced transmission according to the determined time window configuration parameter, and notify the user equipment of the time window configuration parameter.
  • the second unit is configured to configure the time window configuration parameter It is included in SIB1 or MIB, and the time window configuration parameters are notified to the user equipment through SIB1 or MIB.
  • the second unit is configured to configure the time window configuration parameter It is included in the MIB and the time window configuration parameters are notified to the user equipment through the MIB.
  • the first information determined by the first base station enhances the start of the time window of the transmission
  • the frame number is different from the start frame number of the time window of the first information enhanced transmission determined by the second base station; and/or the start subframe number and the second time window of the first information enhanced transmission determined by the first base station
  • the starting subframe number of the time window of the first information enhanced transmission determined by the base station is different; and/or the starting subframe number of the time window of the first information enhanced transmission determined by the first base station and the first determined by the second base station
  • the start subframe number of the time window of an information enhanced transmission is different; and/or the time length of the time window of the first information enhanced transmission determined by the first base station and the time window of the first information enhanced transmission determined by the second base station
  • the length of time is not the same; and/or the time interval of the time window of two adjacent enhanced transmissions of the first information enhanced transmission determined by the first base station and the two adjacent enhancement
  • the sending module is further configured to: downlink control channel that carries the first control information, the second control information, or the third control information used to schedule the SI
  • the first RNTI scrambling is used to indicate that the system information is not updated, or the second RNTI scrambling is used to indicate that the system information is updated; or the first RNTI scrambling is used on the PDSCH carrying the SIB1, SIB2 or SI to indicate the system information.
  • the second RNTI scrambling is used to indicate that the system information is updated; or the first RNTI scrambling is used on the PDSCH carrying the SIB1, SIB2 or SI to indicate that the system information has not been updated, or the second RNTI is used for scrambling To indicate that the system information is updated; or to indicate whether the system information is updated by using redundant bits or padding bits in the DCI of the scheduling SIB1, SIB2 or SI.
  • the sending module is further configured to: pass the first control information, the second control information, or the downlink control channel for scheduling the third control information of the SI
  • the scrambled RNTI is used to indicate that N system information in the M system information is updated, where M, N is an integer, M is greater than or equal to 2, and N is less than or equal to M; Or indicating that the N pieces of system information in the M system information are updated by the RNTI scrambled on the PDSCH carrying the SIB1, SIB2, or SI, where M, N are integers, M is greater than or equal to 2, and N is less than or equal to M; or An indication field is added in the DCI of SIB1, SIB2 or SI to indicate that N system information in the M system information is updated, where M, N is an integer, M is greater than or equal to 2, N is less than or equal to M; or uses scheduling SIB1, SIB2 or Redundant bits or padding bits in the DCI of the SI
  • a fourth aspect of the present invention provides a user equipment, where the user equipment includes a determining module and a receiving module, wherein the determining module is configured to determine a time window of the first information enhanced transmission, wherein the first information content transmitted in the time window
  • the first information is the MIB, the SIB1, the SIB2, the first control information for scheduling the SIB1, or the second control information for scheduling the SIB2.
  • the receiving module is configured to perform the first information in the time window.
  • the first information that is repeatedly transmitted multiple times; wherein, when the first information is a MIB, receiving more than 4 repeated transmission MIBs in a time window, wherein when the first information is SIB1 Receiving more than 4 repeated transmissions of SIB1 in the time window, or receiving K times of repeated transmissions of SIB2 in the time window when the first information is SIB2, K is a fixed integer greater than 1, or, when the first information is the first control information or the second control information, receives more than one repeated transmission of the first control information or the second control information in the time window.
  • a subframe used for repeatedly transmitting the first information is pre-defined, and the receiving module is used in a predetermined sub- The first information that is repeatedly transmitted is received on the frame.
  • the receiving module is configured to receive the first information that is repeatedly sent multiple times on the configured subframe.
  • the receiving module is further configured to perform information combining the received first information that is repeatedly sent, and detect the combined information.
  • the receiving module is configured to use the same modulation and decoding mode in the time window and/or to receive the multiple repeated transmissions by using the same-sized time-frequency resource a message.
  • the determining module is configured to determine, according to a preset, a time window for enhancing the transmission of the first information, where the preset includes a predetermined time window a starting frame number, a starting subframe number of a predetermined time window, a starting OFDM number of a predetermined time window, a length of time of a predetermined time window, and a predetermined time interval between two adjacent time windows One or more.
  • the determining module includes a first unit and a second unit, wherein the first unit is configured to obtain a time window configuration of a time window of the first information enhanced transmission
  • the parameter, the time window configuration parameter includes a start frame number of the time window, a start subframe number of the time window, a start OFDM number of the time window, a time length of the time window, and one of time intervals of two adjacent time windows.
  • the second unit is configured to determine a time window of the first information enhanced transmission according to the time window configuration parameter.
  • the first unit is configured to receive the time window Configure the SIB1 or MIB of the parameter and obtain the time window configuration parameters from SIB1 or MIB.
  • the first unit is configured to receive the time window Configure the MIB of the parameter and obtain the time window configuration parameters from the MIB.
  • the receiving module is further configured to: a downlink control channel that carries the first control information, the second control information, or the third control information used to schedule the SI De-scrambling and successfully detecting the downlink control channel according to the first RNTI, determining that the system information has not been updated, or descrambling according to the second RNTI and successfully detecting the downlink control channel, determining that the system information is updated; or Decoding and successfully detecting the downlink control channel according to the first RNTI on the downlink control channel of the control information, the second control information, or the third control information for scheduling the SI, determining that the system information is not updated, or according to the second RNTI solution If the downlink control channel is successfully detected, the system information is updated; or the indication field is obtained in the DCI of the scheduling SIB1, SIB2, or SI, and the system information is determined to be updated according to the indication field; or the scheduling SIB1, SIB2, or SI is used. Redundant
  • the receiving module is further configured to: perform downlink control by using the first control information, the second control information, or the third control information for scheduling the SI RNTI descrambling on the channel to determine that N system information in the M system information is updated, where M, N is an integer, M is greater than or equal to 2, and N is less than or equal to M; or by PDSCH carrying SIB1, SIB2 or SI RNTI descrambling to determine that N system information in M system information is updated, where M, N is an integer, M is greater than or equal to 2, and N is less than or equal to M; or obtaining an indication field in DCI scheduling SIB1, SIB2, or SI Determining, according to the indication field, that N system information in the M system information is updated, where M, N is an integer, M is greater than or equal to 2, and N is less than or equal to M; or using redundant bits in DCI scheduling SIB1, SIB2, or SI Or padding bits to determine that N system information
  • a fifth aspect of the present invention provides a base station, where the base station includes a processor and a transmitter, where the processor is configured to determine a time window of the first information enhanced transmission, wherein the first information content transmitted in the time window does not change,
  • the first information is any one of MIB, SIB1, SIB2, first control information for scheduling SIB1, or second control information for scheduling SIB2;
  • the transmitter is configured to send the first information in a time window, and
  • the first information is repeatedly sent multiple times in the time window, wherein when the first information is the MIB, the number of repeated transmissions of the MIB in the time window is greater than 4 times, or when the first information is SIB1, the SIB1 in the time window
  • the number of repeated transmissions is greater than 4 times, or when the first information is SIB2, the number of repeated transmissions of SIB2 in the time window is K times, K is a fixed integer greater than 1, or when the first information is the first control information or In the second control information, the number of repeated transmissions of the first control information
  • a sixth aspect of the present invention provides a user equipment, where the user equipment includes a processor and a receiver, wherein the processor is configured to determine a time window of the first information enhanced transmission, wherein the first information content transmitted in the time window is not Changing, the first information is any one of MIB, SIB1, SIB2, first control information for scheduling SIB1, or second control information for scheduling SIB2; and the receiver is configured to receive the first information in a time window, And receiving, in the time window, the first information that is repeatedly sent, where the MIB receives more than 4 repeated transmissions of the MIB in the time window when the first information is the MIB, or when the first information is the SIB1, Receiving more than 4 repeated transmissions of SIB1 in the time window, or receiving K times of repeated transmissions of SIB2 in the time window when the first information is SIB2, K is a fixed integer greater than 1, or, when the first information is the first control information or the second control information, receives more than one repeated transmission of the first control information or the second control information in the time window
  • a seventh aspect of the present invention provides a communication system for a base station and a user equipment to communicate, the communication system setting a time window for the first information enhanced transmission; wherein the first information content transmitted in the time window does not change,
  • the first information is any one of MIB, SIB1, SIB2, first control information for scheduling SIB1, or second control information for scheduling SIB2; in the time window, the first information is repeatedly transmitted, where When the first information is the MIB, at least 5 times of repeated transmission of the MIB is performed in the time window, or when the first information is SIB1, at least 5 times of repeated transmission of SIB1 is performed in the time window, or when the first information is used When it is SIB2, K repeat transmission SIB2 is performed in the time window, K is a fixed integer greater than 1, or, when the first information is the first control information or the second control information, at least 2 times in the time window A repeated transmission of control information or second control information.
  • the time window for the communication system to set the first information enhanced transmission includes: a start frame number of the specified time window, and a start subframe of the specified time window The number, the start OFDM number of the specified time window, the length of time of the specified time window, and one or more of the time intervals defining the two adjacent time windows.
  • the information transmission method, the base station, the user equipment, and the communication system in the embodiment of the present invention enhance the time window of the transmission by determining the first information, and the first information content transmitted in the time window is unchanged, and then in time.
  • the first information is transmitted in the window, and the first information is repeatedly transmitted multiple times in the time window.
  • the first information may be MIB, or SIB1, or SIB2, or first control information for scheduling SIB1, or second control information for scheduling SIB2, where MIB is in time window when the first information is MIB
  • the number of repeated transmissions is greater than 4 times, or when the first information is SIB1, the number of repeated transmissions of SIB1 in the time window is greater than 4 times, or when the first information is SIB2, the number of repeated transmissions of SIB2 in the time window Is K times, K is a fixed integer greater than 1, or, when the first information is the first control information or the second control information, the number of repeated transmissions of the first control information or the second control information in the time window is greater than 1 time .
  • the user equipment can determine the time window of the first information enhanced transmission when receiving the first information. Because the first information content remains unchanged in the time window, the user equipment can combine the multiple repeated first information in the time window, and detect the combined first information, thereby improving the first information. Transmission reliability.
  • FIG. 1 is a schematic flow chart of a first embodiment of a method for transmitting information according to the present invention
  • FIG. 2 is a schematic flow chart of a second embodiment of a method for transmitting information according to the present invention.
  • FIG. 3 is a schematic flow chart of a third embodiment of a method for transmitting information according to the present invention.
  • FIG. 4 is a schematic flow chart of a fourth embodiment of a method for transmitting information according to the present invention.
  • FIG. 5 is a schematic flowchart diagram of a fifth embodiment of a method for transmitting information according to the present invention.
  • FIG. 6 is a schematic structural diagram of a first embodiment of a base station according to the present invention.
  • FIG. 7 is a schematic structural diagram of a second embodiment of a base station according to the present invention.
  • FIG. 8 is a schematic structural diagram of a first embodiment of a user equipment according to the present invention.
  • FIG. 9 is a schematic structural diagram of a second embodiment of a user equipment according to the present invention.
  • FIG. 10 is a schematic structural diagram of a third embodiment of a base station according to the present invention.
  • FIG. 11 is a schematic structural diagram of a third embodiment of a user equipment according to the present invention.
  • FIG. 1 it is a schematic flowchart of a first embodiment of a method for transmitting information according to the present invention.
  • the method of transmitting information includes the following steps:
  • S11 determining a time window of the first information enhanced transmission, where the first information content transmitted in the time window is unchanged, the first information is MIB, SIB1, SIB2, first control information for scheduling SIB1 or used for Any one of the second control information of the SIB2 is scheduled.
  • the time domain resource of the first information transmission is in units of radio frames, and one radio frame includes 10 subframes.
  • a time window may consist of one or more subframes within a radio frame or one or more subframes within a plurality of radio frames. It should be noted that the first information transmitted within different time windows may be updated or changed.
  • the MIB When the first information is the MIB, the MIB is carried in the PBCH; when the first information is the SIB1 or the SIB2, the SIB1 or the SIB2 is carried in the PDSCH; when the first information is the first control information or the second control information, the first The control information or the second control information is carried in the downlink control channel.
  • S12 transmitting the first information in the time window, and repeatedly transmitting the first information multiple times in the time window, wherein when the first information is the MIB, the number of repeated transmissions of the MIB in the time window is greater than 4 times, or When the first information is SIB1, the number of repeated transmissions of SIB1 in the time window is greater than 4 times, or when the first information is SIB2, the number of repeated transmissions of SIB2 in the time window is K times, and K is greater than 1.
  • a fixed integer, or when the first information is the first control information or the second control information, the number of times the first control information or the second control information is repeatedly transmitted in the time window is greater than one time.
  • the time window may be greater than 40 ms, and the MIB will be repeatedly transmitted at least 5 times in each time window; if the first information is SIB1, the time window may be greater than 80 ms, in each time window
  • the inner SIB1 will be repeatedly transmitted at least 5 times; if the first information is SIB2, SIB2 will be repeatedly transmitted K times in each time window, K is a fixed integer greater than 1, such as 3 or 5 or 7;
  • the information is the first control information or the second control information, and the first control information or the second control information will be repeatedly transmitted at least twice in each time window.
  • repeatedly transmitting the first information multiple times in the time window includes: in the time window, the subframe used for repeatedly transmitting the first information is predetermined. That is, the base station transmits the first information on a predetermined subframe that is predetermined in each time window.
  • repeatedly transmitting the first information multiple times in the time window includes: when the first information is SIB1 or the first control information, The subframe used for the repeated transmission of the first information is configured by the MIB; when the first information is the SIB2 or the second control information, The subframe used for the repeated transmission of the first information is configured by MIB or SIB1.
  • the base station transmits the first information on the MIB or the sub-frame configured by SIB1 in each time window according to the configuration of the MIB or SIB1.
  • the method for transmitting information determines the time window of the first information transmission, and then performs enhanced transmission on the first information within the determined time window, that is, performs repeated transmissions multiple times.
  • the first information is the MIB
  • the number of repeated transmissions of the MIB in the time window is greater than 4 times, or when the first information is SIB1
  • the number of repeated transmissions of the SIB1 in the time window is greater than 4 times
  • the information is SIB2
  • the number of repeated transmissions of SIB2 in the time window is K times
  • K is a fixed integer greater than 1
  • the first information is the first control information or the second control information, the first control information or
  • the number of repeated transmissions of the second control information in the time window is greater than one.
  • FIG. 2 is a schematic flowchart of a second embodiment of a method for transmitting information according to the present invention.
  • the method of transmitting information includes the following steps:
  • S21 determining, according to a preset, a time window for enhancing transmission of the first information, where a starting frame number including a predetermined time window, a starting subframe number of a predetermined time window, and a predetermined time window are preset One or more of an initial OFDM number, a length of time of a predetermined time window, and a predetermined time interval between two adjacent time windows.
  • the preset is set by the LTE or LTE-A network or preset by the standard of the communication, and the base station and the user equipment both apply the preset.
  • the starting frame number may be a radio frame numbered 0
  • the starting subframe number may be a subframe numbered 1
  • the time window duration may be 64 radio frames
  • the time interval between two adjacent time windows may be 64 wireless frames.
  • SFN the system frame number
  • mod represents the modulo operation of the system radio frame number to A.
  • the time length including the time window is preset to be A radio frames
  • S22 transmitting the first information in the time window, and repeatedly transmitting the first information multiple times in the time window, wherein when the first information is the MIB, the number of repeated transmissions of the MIB in the time window is greater than 4 times, or When the first information is SIB1, the number of repeated transmissions of SIB1 in the time window is greater than 4 times, or when the first information is SIB2, the number of repeated transmissions of SIB2 in the time window is K times, and K is greater than 1.
  • a fixed integer, or when the first information is the first control information or the second control information, the number of times the first control information or the second control information is repeatedly transmitted in the time window is greater than one time.
  • the content of the first information that is repeatedly transmitted each time is the same.
  • the first information is repeatedly transmitted in the same time using the same modulation coding mode and/or using the same-sized time-frequency resource.
  • SIB1, SIB2 system information
  • SIB1 system information
  • SIB2 system information
  • the first mode is to use the first RNTI (Radio Network Temporary Identifier) scrambling on the downlink control channel carrying the first control information, the second control information, or the third control information for scheduling the SI to indicate system information. No update has occurred, or a second RNTI scrambling is used to indicate that system information has been updated.
  • the downlink control channel is preferably a PDCCH.
  • First RNTI and second RNTI It is two RNTIs pre-defined by the system or standard. For example, when the PDCCH is scrambled by RNTI1, it indicates that the system information has not been updated; when the RNTI2 is scrambled, the system information is updated.
  • the second mode is to use the first RNTI scrambling on the PDSCH carrying the SIB1, SIB2 or SI to indicate that the system information has not been updated, or to use the second RNTI scrambling to indicate that the system information is updated.
  • the second way is similar to the first method and will not be described in detail here.
  • An indication field is added to the information, downlink control information to indicate whether the system information is updated.
  • the indication field may have a different status, and the status of the indication field may indicate whether the system information has been updated. For example, the indication field includes one bit. If the status of the indication field is 0, indicating that the system information has not been updated, or the status of the indication field is 1, the system information is updated.
  • the fourth way is to indicate whether the system information is updated by using redundant bits or padding bits in the DCI of the scheduling SIB1, SIB2 or SI.
  • the redundant bits or padding bits may also have different states, and the status of the redundant bits or padding bits may indicate whether the system information is updated or not, which will not be described in detail herein.
  • the fifth mode is to indicate that the N system information in the M system information is updated by using the RNTI that is scrambled on the downlink control channel that carries the first control information, the second control information, or the third control information for scheduling the SI,
  • M is an integer
  • M is greater than or equal to 2
  • N is less than or equal to M.
  • RNTI1 scrambling is used to indicate that no system information is updated
  • RNTI2 scrambling is used to indicate that the MIB is updated
  • RNTI3 scrambling is used.
  • RNTI4 scrambling is used to indicate that SIB2 is updated.
  • M and N are 3 and the system information is MIB, SIB1, and SIB2, 8 different RNTIs may be used to indicate which system information is updated. For details, refer to Table 1.
  • Table 1 Application example 1 indicating system information update RNTI value Indicating content RNTI 1 System information has not been updated RNTI 2 MIB update RNTI 3 SIB1 has been updated RNTI 4 SIB2 update RNTI 5 MIB and SIB1 update RNTI 6 MIB and SIB2 update RNTI 7 SIB1 and SIB2 are updated RNTI 8 MIB, SIB1, and SIB2 are updated
  • the fifth mode can not only indicate that the system information is updated, but also indicate which one or which system information is updated. It should be noted that N can be equal to 0, which corresponds to the use of RNTI. 1 indicates that the system information has not been updated.
  • the sixth mode is to update the N system information in the M system information by using the RNTI scrambled on the PDSCH carrying the SIB1, the SIB2, or the SI, where M and N are positive integers, M is greater than or equal to 2, and N is less than or equal to M. .
  • the sixth mode is similar to the fifth mode and will not be described in detail here.
  • the seventh mode is: adding an indication field in the DCI of scheduling SIB1, SIB2 or SI to indicate that N system information in the M system information is updated, where M, N is a positive integer, M is greater than or equal to 2, and N is less than or equal to M.
  • the status of the indication field indicates which system information is updated.
  • the indication field includes 2 bits, indicating that the status of the field is 00, indicating that no system information is updated; the status of the indication field is 01.
  • the MIB is instructed to update; the status of the indication field is 10, indicating that the SIB1 is updated; and the status of the indication field is 11, indicating that the SIB2 is updated. Further, in another application example, the status of the indication field may indicate that more system information is updated.
  • M and N are 3, and the system information is MIB, SIB1, and SIB2, a three-bit indication field may be used to indicate system information.
  • a three-bit indication field may be used to indicate system information. For the update, please refer to Table 2.
  • Table 2 Application examples indicating system information update 2 Indicate the status of the field Indicating content 000 System information has not been updated 001 MIB update 010 SIB1 has been updated 011 SIB2 update 100 MIB and SIB1 update 101 MIB and SIB2 update 110 SIB1 and SIB2 are updated 111 MIB, SIB1, and SIB2 are updated
  • the seventh mode can not only indicate that the system information is updated, but also indicate which one or which system information is updated. It should be noted that N may be equal to 0, which corresponds to the case where the status of 000 indicates that the system information has not been updated.
  • the eighth mode using the redundancy bits or padding bits in the DCI of the scheduling SIB1, SIB2 or SI to indicate that the N system information in the M system information is updated, where M, N is a positive integer, and M is greater than or equal to 2, N Less than or equal to M.
  • the ninth mode adding an indication information element in the MIB, SIB1, paging message or SIB2 to indicate that N system information in the M system information is updated, where M, N is a positive integer, M is greater than or equal to 2, and N is less than or equal to M.
  • the existing LTE/LTE-A system has an indication of system information update, but the user equipment must determine whether there is system information update by detecting SIB1 or Paging.
  • the user equipment needs to detect the PDCCH first, and after the user equipment successfully detects the PDCCH, the PDSCH carrying the SIB1 or the Paging is detected, and the user equipment succeeds. After detecting SIB1 or Paging, it can be judged whether there is system information update.
  • the PDCCH also needs to be enhanced, and the indication method is updated according to the existing system information. The user equipment needs to detect the enhanced PDCCH and the enhanced PDSCH, thereby increasing the detection complexity and power consumption of the user equipment.
  • SIB1 can only indicate whether the SI is updated, and cannot indicate whether the MIB has an update, and whether the SIB1 itself is updated can only be determined by the user equipment detecting SIB1.
  • Paging can indicate whether an update occurs in the SI, MIB, or SIB1.
  • the paging period of the user equipment is larger than that of the normal user equipment. If the user equipment that needs to be enhanced is monitored for Paging according to the Paging period, and the Paging is used to judge whether the system information is updated, because the Paging period is long, the user equipment that needs to be covered with the coverage may not be able to determine whether the system information is updated in time. Moreover, because the base station is to keep the system information from updating within a time range that includes multiple paging opportunities that need to cover the enhanced user equipment, the system information changes to the base station also impose some limitations.
  • the present embodiment has a great advantage over the prior art.
  • the information transmission method of this embodiment can not only enhance the first information in the time window of the first information, but also transmit the first information. Indicating which one or which system information is updated can enable the user equipment to accurately know which system information is updated, so that the user equipment only detects the updated system information, which saves the processing complexity and power consumption of the user equipment.
  • FIG. 3 it is a schematic flowchart of a third embodiment of a method for transmitting information according to the present invention.
  • the method of transmitting information includes the following steps:
  • S31 determining a time window configuration parameter of a time window of the first information enhanced transmission, where the time window configuration parameter includes a start frame number of the time window, a start subframe number of the time window, an initial OFDM number of the time window, and a time window. One or more of the length of time and the time interval between two adjacent time windows.
  • the base station when the LTE or LTE-A network or system does not preset a time window, the base station needs to determine a time window.
  • the base station determines time window configuration parameters, which may be determined by the base station itself or obtained from other network entities.
  • the start frame number may be a radio frame numbered 0, the start subframe number may be a subframe numbered 0, and the time window duration may be 64 radio frames, and the time interval between two adjacent time windows may be It is 64 radio frames.
  • S32 Determine a time window of the first information enhanced transmission according to the determined time window configuration parameter, and notify the user equipment of the time window configuration parameter.
  • notifying the time window configuration parameter to the user equipment includes: including the time window configuration parameter in the SIB1 or the MIB, and passing the time window configuration parameter through the SIB1 Or the MIB notifies the user device.
  • notifying the time window configuration parameter to the user equipment comprises: including the time window configuration parameter in the MIB, and notifying the time window configuration parameter to the MIB User equipment. In the above manner, when receiving the MIB or SIB1, the user equipment may determine the time window according to the time window configuration parameter.
  • the time window determined by the different base stations may be different, for example, the start frame number of the time window of the first information enhanced transmission determined by the first base station and the first determined by the second base station.
  • the start frame number of the time window of the information enhanced transmission is different; and/or the start subframe number of the time window of the first information enhanced transmission determined by the first base station and the time of the first information enhanced transmission determined by the second base station
  • the starting subframe number of the window is not the same; and/or the starting OFDM number of the time window of the first information enhanced transmission determined by the first base station and the starting OFDM of the time window of the first information enhanced transmission determined by the second base station
  • the number is not the same; and/or, the time length of the time window of the first information enhanced transmission determined by the first base station is different from the time length of the time window of the first information enhanced transmission determined by the second base station; and/or, first The time interval of the time window of two adjacent enhanced transmissions of the first information enhanced transmission determined by
  • S33 transmitting the first information in the time window, and repeatedly transmitting the first information multiple times in the time window, wherein when the first information is the MIB, the number of repeated transmissions of the MIB in the time window is greater than 4 times, or When the first information is SIB1, the number of repeated transmissions of SIB1 in the time window is greater than 4 times, or when the first information is SIB2, the number of repeated transmissions of SIB2 in the time window is K times, and K is greater than 1.
  • a fixed integer, or when the first information is the first control information or the second control information, the number of times the first control information or the second control information is repeatedly transmitted in the time window is greater than one time.
  • FIG. 4 it is a schematic flowchart of a fourth embodiment of a method for transmitting information according to the present invention.
  • the method of transmitting information includes the following steps:
  • S41 determining a time window of the first information enhanced transmission, where the first information content transmitted in the time window is unchanged, the first information is MIB, SIB1, SIB2, first control information for scheduling SIB1 or used for Any one of the second control information of the SIB2 is scheduled.
  • the time domain resource of the first information transmission is in units of radio frames, and one radio frame includes 10 subframes.
  • the time window may be composed of one or more subframes within one radio frame, or may be composed of one or more subframes within a plurality of radio frames. It should be noted that the transmitted first information within different time windows may be updated or changed.
  • the MIB When the first information is the MIB, the MIB is carried in the PBCH; when the first information is the SIB1 or the SIB2, the SIB1 or the SIB2 is carried in the PDSCH; when the first information is the first control information or the second control information, the first The control information or the second control information is carried in the downlink control channel.
  • the time window for the first information enhancement transmission may be determined either by the base station or by an LTE or LTE-A system or network. If preset by the LTE or LTE-A system or the network, the step of determining, by the base station, the time window of the first information enhanced transmission comprises: determining a time window of the first information enhanced transmission according to the preset, wherein the preset includes the advance The starting frame number of the specified time window, the starting subframe number of the predetermined time window, the starting OFDM number of the predetermined time window, the length of the predetermined time window, and the predetermined two adjacent times One or more of the time intervals of the window.
  • the preset is preset by the LTE or LTE-A system or the network, and the base station and the user equipment both apply the preset.
  • the starting frame number may be a radio frame numbered 0
  • the starting subframe number may be a subframe numbered
  • the time window duration may be 64 radio frames
  • the time interval between two adjacent time windows may be 64 wireless frames.
  • S42 Performing reception of the first information in the time window, and receiving the first information that is repeatedly sent multiple times in the time window, where when the first information is the MIB, receiving more than 4 repeated transmissions in the time window MIB, or, when the first information is SIB1, receives more than 4 repeated transmissions of SIB1 in a time window, or, when the first information is SIB2, receives K times of repeatedly transmitted SIB2 in a time window, K is a fixed integer greater than 1, or, when the first information is the first control information or the second control information, receives more than one repeated transmission of the first control information or the second control information in the time window.
  • the time window may be greater than 40 ms, and the MIB is repeatedly transmitted in more than 4 times in each time window; if the first information is SIB1, the time window may be greater than 80 ms in each time window.
  • Receiving more than 4 repeated transmissions of SIB1; if the first information is SIB2, receiving K times of repeated transmissions of SIB1 in each time window, K is a fixed integer greater than 1; if the first information is the first control information or The second control information receives more than one repeated transmission of the first control information or the second control information in each time window.
  • receiving the first information that is repeatedly sent in the time window includes: combining the received first information that is repeatedly sent, and detecting the combined information. Since the first information received within the time window is the same, information merge detection can be performed, thereby enhancing the reliability of the first information transmission. Therefore, it is necessary to determine a time window of the first information, so that the user equipment receiving the first information performs combined detection on the received first information within the time window.
  • the receiving, by the time window, the first information that is repeatedly sent repeatedly includes: in the time window, the subframe used by the base station to repeatedly transmit the first information is pre-defined; the user is involved in a predetermined sub The first information that is repeatedly transmitted is received on the frame. That is, the base station transmits the first information on a predetermined subframe that is predetermined in each time window.
  • receiving, by the time window, the first information that is repeatedly sent repeatedly includes: when the first information is the SIB1 or the first control information, The subframe used for repeatedly transmitting the first information is configured by the MIB; when the first information is the SIB2 or the second control information, The subframe used for the first information repeatedly transmitted multiple times is configured by MIB or SIB1.
  • the UE receives the first information that is repeatedly sent multiple times on the configured subframe.
  • FIG. 5 it is a schematic flowchart of a fifth embodiment of a method for transmitting information according to the present invention.
  • the method of transmitting information includes the following steps:
  • S51 Obtain a time window configuration parameter of a time window of the first information enhanced transmission, where the time window configuration parameter includes a start frame number of the time window, a start subframe number of the time window, a start OFDM number of the time window, and a time window. One or more of the length of time and the time interval between two adjacent time windows.
  • the user equipment when the LTE or LTE-A network or system does not preset the time window, the user equipment needs to receive the time window configuration parameter of the base station to determine the time window.
  • the user equipment first needs to determine a time window configuration parameter, and the time window configuration parameter is received from the base station.
  • the start frame number may be a radio frame numbered 0
  • the start subframe number may be a subframe numbered 0
  • the time window duration may be 64 radio frames
  • the time interval between two adjacent time windows may be It is 64 radio frames.
  • obtaining the time window configuration parameter of the time window of the first information enhanced transmission comprises: receiving the SIB1 or the MIB including the time window configuration parameter; from the SIB1 or Time window configuration parameters are obtained in the MIB.
  • obtaining a time window configuration parameter of the time window of the first information enhanced transmission includes: receiving the MIB including the time window configuration parameter; obtaining the time from the MIB Window configuration parameters.
  • S52 Determine a time window of the first information enhanced transmission according to the time window configuration parameter.
  • S53 Performing reception of the first information in the time window, and receiving the first information that is repeatedly sent multiple times in the time window, where when the first information is the MIB, receiving more than 4 repeated transmissions in the time window MIB, or, when the first information is SIB1, receives more than 4 repeated transmissions of SIB1 in a time window, or, when the first information is SIB2, receives K times of repeatedly transmitted SIB2 in a time window, K is a fixed integer greater than 1, or, when the first information is the first control information or the second control information, receives more than one repeated transmission of the first control information or the second control information in the time window.
  • the first information received in the time window since the first information received in the time window is repeatedly transmitted, the first information received each time should be the same.
  • the same information is transmitted in the same time using the same modulation and decoding mode and/or using the same-sized time-frequency resource.
  • SIB1, SIB2, etc. There may be multiple system information, such as MIB, SIB1, SIB2, etc., and other SIBs other than SIB1 are distributed in the SI, so when the system information is updated, the user equipment needs to determine which system information is generated. Update, then the UE only needs to detect the updated system information, which can reduce the complexity of UE detection and save the power consumption of the UE.
  • the first mode descrambling and successfully detecting the downlink control channel according to the first RNTI on the downlink control channel carrying the first control information, the second control information, or the third control information for scheduling the SI, determining that the system information is not If an update occurs, or the downlink control channel is descrambled according to the second RNTI and the downlink control channel is successfully detected, it is determined that the system information is updated.
  • the downlink control channel is preferably a PDCCH.
  • the first RNTI and the second RNTI are two RNTIs pre-defined by the system or standard.
  • the PDCCH is descrambled according to RNTI1 and the PDCCH is successfully detected, it is determined that the system information does not update; when the PDCCH is descrambled according to RNTI2 and the PDCCH is successfully detected, it is determined that the system information is updated.
  • the second mode is: performing descrambling on the PDSCH carrying the SIB1, SIB2, or SI according to the first RNTI and successfully detecting the PDSCH, determining that the system information is not updated, or descrambling according to the second RNTI and successfully detecting the PDSCH, determining System information has been updated.
  • the second way is similar to the first method and will not be described in detail here.
  • the third mode is: obtaining an indication field in a DCI that schedules SIB1, SIB2, or SI, and determining whether system information is updated according to the indication field.
  • the indication field may have a different status, and by indicating the status of the field, it may be determined whether the system information is updated. For example, the indication field includes one bit. If the status of the indication field is 0, it is determined that the system information has not been updated, or when the status of the indication field is 1, it is determined that the system information is updated.
  • the fourth mode is to determine whether system information is updated according to redundant bits or padding bits by using redundant bits or padding bits in the DCI of scheduling SIB1, SIB2 or SI.
  • the redundant bits or padding bits may also have different states, and whether the system information is updated may be determined by the status of the redundant bits or padding bits, which will not be described in detail herein.
  • the fifth mode is: determining, by using RNTI descrambling on the downlink control channel carrying the first control information, the second control information, or the third control information for scheduling the SI, to update the N system information in the M system information.
  • M is an integer
  • M is greater than or equal to 2
  • N is less than or equal to M.
  • the downlink control channel is successfully descrambled according to RNTI1, and it is determined that no system information is updated; descrambling and successful detection according to RNTI2
  • the downlink control channel is sent out, it is determined that the MIB is updated; if the downlink control channel is descrambled according to RNTI3 and the downlink control channel is successfully detected, it is determined that the SIB1 is updated; according to the RNTI4 descrambling and the downlink control channel is successfully detected, it is determined that the SIB2 is updated.
  • the RNTI descrambling is required to determine the system information update, and the specific implementation is similar to Table 1.
  • the sixth mode is to determine that N system information in the M system information is updated by descrambling the RNTI on the PDSCH carrying the SIB1, SIB2, or SI, where M, N are integers, M is greater than or equal to 2, and N is less than or equal to M.
  • the sixth mode is similar to the fifth mode and will not be described in detail here.
  • the seventh mode is: obtaining an indication field in a DCI that schedules SIB1, SIB2, or SI, and determining, according to the indication field, that N system information in the M system information is updated, where M, N are integers, M is greater than or equal to 2, and N is less than Equal to M.
  • N are integers, M is greater than or equal to 2, and N is less than Equal to M.
  • the status of the field is indicated to indicate which system information is updated.
  • the indication field includes 2 bits, and when it is detected that the status of the indication field is 00, it is determined that no system information is updated; when it is detected; When the status of the indication field is 01, it is determined that the MIB is updated; when it is detected that the status of the indication field is 10, it is determined that SIB1 is updated; when it is detected that the status of the indication field is 11, it is determined that SIB2 is updated. Further, if two or more system information are updated, the update instruction of the system information may be performed in the manner of Table 2.
  • the eighth mode using the redundancy bits or padding bits in the DCI of the scheduling SIB1, SIB2 or SI to determine that the N system information in the M system information is updated, where M, N is an integer, and M is greater than or equal to 2, N Less than or equal to M.
  • the eighth mode is similar to the seventh mode and will not be described in detail here.
  • the ninth mode obtaining the indication information element in the MIB, the SIB1, the paging message, or the SIB2, and determining, according to the indication information element, that the N system information in the M system information is updated, where M, N is an integer, and M is greater than or equal to 2 , N is less than or equal to M.
  • N may be equal to 0, which corresponds to the system information not being updated.
  • FIG. 6 is a schematic structural diagram of a first embodiment of a base station according to the present invention.
  • the base station includes a determination module 61 and a transmission module 62.
  • the determining module 61 is configured to determine a time window of the first information enhanced transmission, where the first information content transmitted in the time window is unchanged, and the first information is MIB, SIB1, SIB2, and the first control information used to schedule the SIB1. Or any one of the second control information for scheduling SIB2.
  • the time domain resource of the first information transmission is in units of radio frames, and one radio frame includes 10 subframes.
  • the time window may be composed of one or more subframes within one radio frame, or may be composed of one or more subframes within a plurality of radio frames. It should be noted that the transmitted first information within different time windows may be updated or changed.
  • the MIB When the first information is the MIB, the MIB is carried in the PBCH; when the first information is the SIB1 or the SIB2, the SIB1 or the SIB2 is carried in the PDSCH; when the first information is the first control information or the second control information, the first The control information or the second control information is carried in the downlink control channel.
  • the time window for the first information enhancement transmission may be determined either by the base station or by an LTE or LTE-A system or network. If preset by the LTE or LTE-A system or network, the determining module 61 is configured to determine a time window of the first information enhanced transmission according to a preset, wherein a starting frame number including a predetermined time window is preset a start subframe number of a predetermined time window, a start OFDM number of a predetermined time window, a length of time of a predetermined time window, and a predetermined time interval between two adjacent time windows or A variety.
  • the preset is set by the LTE or LTE-A network system or preset, and the base station and the user equipment apply the preset.
  • the starting frame number may be a radio frame numbered 0
  • the starting subframe number may be a subframe numbered
  • the time window duration may be 64 radio frames
  • the time interval between two adjacent time windows may be 64 wireless frames.
  • the sending module 62 is configured to send the first information in the time window, and repeatedly send the first information multiple times in the time window, wherein when the first information is the MIB, the number of repeated transmissions of the MIB in the time window is greater than 4 Or, when the first information is SIB1, the number of repeated transmissions of SIB1 in the time window is greater than 4 times, or when the first information is SIB2, the number of repeated transmissions of SIB2 in the time window is K times, K is A fixed integer greater than 1, or, when the first information is the first control information or the second control information, the number of times the first control information or the second control information is repeatedly transmitted in the time window is greater than one time.
  • the subframe used for repeatedly transmitting the first information in the time window is predetermined. That is to say, the first information is transmitted in a predetermined subframe according to a predetermined specification.
  • the first information is SIB1 or the first control information
  • the subframe used for the repeated transmission of the first information is configured by the MIB; when the first information is the SIB2 or the second control information,
  • the subframe used for the repeated transmission of the first information is configured by MIB or SIB1.
  • the first information is transmitted on the configured subframe according to the configuration of the MIB or SIB1.
  • the time window may be greater than 40 ms, and the MIB will be repeatedly transmitted at least 5 times in each time window; if the first information is SIB1, the time window may be greater than 80 ms, and SIB1 in each time window Will be repeatedly transmitted at least 5 times; if the first information is SIB2, SIB2 will be repeatedly transmitted K times in each time window, K is a fixed integer greater than 1, such as 3, 5, 7, etc.; if the first information is The first control information or the second control information, the first control information or the second control information will be repeatedly transmitted at least twice in each time window.
  • SIB1, SIB2, etc. There may be multiple system information, such as MIB, SIB1, SIB2, etc., and other SIBs other than SIB1 are distributed in the SI. Therefore, when the system information is updated, in order to reduce the complexity of the UE detection and save the power consumption of the UE, the sending module 62 needs to indicate which system information is updated.
  • the sending module 62 is further configured to use the first RNTI scrambling to indicate on the downlink control channel carrying the first control information, the second control information, or the third control information for scheduling the SI, if the system information is only updated.
  • the system information is not updated, or the second RNTI scrambling is used to indicate that the system information is updated;
  • the sending module 62 is further configured to: use the first RNTI scrambling on the PDSCH carrying the SIB1, the SIB2, or the SI to indicate that the system information is not updated, or use the second RNTI scrambling to indicate that the system information is updated;
  • the sending module 62 is further configured to add an indication field in the DCI that schedules the SIB1, the SIB2, or the SI to indicate whether the system information is updated.
  • the sending module 62 is further configured to indicate whether the system information is updated by using redundant bits or padding bits in the DCI of the scheduling SIB1, SIB2 or SI.
  • the sending module 62 is further configured to perform RNTI scrambling on the downlink control channel by using the first control information, the second control information, or the third control information for scheduling the SI.
  • N system information in the M system information is updated, where M, N is an integer, M is greater than or equal to 2, and N is less than or equal to M;
  • the sending module 62 is further configured to indicate that the N system information in the M system information is updated by the RNTI that is scrambled on the PDSCH that carries the SIB1, the SIB2, or the SI, where M, N is an integer, M is greater than or equal to 2, and N is less than Equal to M;
  • the sending module 62 is further configured to add an indication field in the DCI of the scheduling SIB1, the SIB2, or the SI to indicate that the N pieces of system information in the M system information are updated, where M, N is an integer, M is greater than or equal to 2, and N is less than or equal to M;
  • the sending module 62 is further configured to use the redundancy bits or padding bits in the DCI of the scheduling SIB1, SIB2, or SI to indicate that N system information in the M system information is updated, where M, N is an integer, and M is greater than or equal to 2. , N is less than or equal to M;
  • the sending module 62 is further configured to add an indication information element in the MIB, the SIB1, the paging message, or the SIB2 to indicate that the N pieces of system information in the M system information are updated, where M, N is an integer, and M is greater than or equal to 2, N Less than or equal to M.
  • FIG. 7 is a schematic structural diagram of a second embodiment of a base station according to the present invention.
  • the base station includes a determination module 71 and a transmission module 72.
  • the determination module 71 includes a first unit 711 and a first unit 712.
  • the determining module 71 is configured to determine a time window of the first information enhanced transmission, where the first information content transmitted in the time window is unchanged, and the first information is MIB, SIB1, SIB2, and the first control information used to schedule the SIB1. Or any one of the second control information for scheduling SIB2.
  • the sending module 72 is configured to send the first information in the time window, and repeatedly send the first information multiple times in the time window, wherein when the first information is the MIB, the number of repeated transmissions of the MIB in the time window is greater than 4 Or, when the first information is SIB1, the number of repeated transmissions of SIB1 in the time window is greater than 4 times, or when the first information is SIB2, the number of repeated transmissions of SIB2 in the time window is K times, K is A fixed integer greater than 1, or, when the first information is the first control information or the second control information, the number of times the first control information or the second control information is repeatedly transmitted in the time window is greater than one time.
  • the first unit 711 is configured to determine a time window configuration parameter of a time window of the first information enhanced transmission, where the time window configuration parameter includes a start frame number of the time window, a start subframe number of the time window, and a time window.
  • the time window configuration parameter includes a start frame number of the time window, a start subframe number of the time window, and a time window.
  • the base station determines the time window by itself according to actual needs.
  • the first unit 711 first needs to determine a time window configuration parameter, which may be self-configured by the first unit 711 or obtain time window configuration parameters from other network entities.
  • the start frame number may be a radio frame numbered 0, the start subframe number may be a subframe numbered 0, and the time window may be 64 radio frames, and the time interval between two adjacent time windows. It can be 64 radio frames.
  • the second unit 712 is configured to determine a time window of the first information enhanced transmission according to the determined time window configuration parameter, and notify the user equipment of the time window configuration parameter.
  • the second unit 712 Since the time window is determined by the second unit 712, the second unit 712 needs to notify the user equipment of the time window configuration parameters.
  • the second unit 712 if the first information is the SIB2 or the second control information, the second unit 712 is configured to include the time window configuration parameter in the SIB1 or the MIB, and notify the user of the time window configuration parameter by using the SIB1 or the MIB. device. .
  • the first information is SIB1 or first control information
  • the second unit 712 is configured to include the time window configuration parameter in the MIB and notify the user equipment of the time window configuration parameter through the MIB. In the above manner, when receiving the MIB or SIB1, the user equipment can obtain the time window configuration parameter included in the MIB or the SIB1, and determine the time window according to the time window configuration parameter.
  • the time window determined by the different base stations may be different, for example, the start frame number of the time window of the first information enhanced transmission determined by the first base station and the first determined by the second base station.
  • the start frame number of the time window of the information enhanced transmission is different; and/or the start subframe number of the time window of the first information enhanced transmission determined by the first base station and the time of the first information enhanced transmission determined by the second base station
  • the starting subframe number of the window is not the same; and/or the starting OFDM number of the time window of the first information enhanced transmission determined by the first base station and the starting OFDM of the time window of the first information enhanced transmission determined by the second base station
  • the number is not the same; and/or, the time length of the time window of the first information enhanced transmission determined by the first base station is different from the time length of the time window of the first information enhanced transmission determined by the second base station; and/or, first The time interval of the time window of two adjacent enhanced transmissions of the first information enhanced transmission determined by
  • FIG. 8 is a schematic structural diagram of a first embodiment of a user equipment according to the present invention.
  • the user equipment includes a determination module 81 and a reception module 82.
  • the determining module 81 is configured to determine a time window of the first information enhanced transmission, where the first information content transmitted in the time window is unchanged, and the first information is MIB, SIB1, SIB2, and the first control information used to schedule the SIB1. Or any one of the second control information for scheduling SIB2.
  • the time domain resource of the first information transmission is in units of radio frames, and one radio frame includes 10 subframes.
  • the time window may be composed of one or more subframes within one radio frame, or may be composed of one or more subframes within a plurality of radio frames. It should be noted that the transmitted first information within different time windows may be updated or changed.
  • the MIB When the first information is the MIB, the MIB is carried in the PBCH; when the first information is the SIB1 or the SIB2, the SIB1 or the SIB2 is carried in the PDSCH; when the first information is the first control information or the second control information, the first The control information or the second control information is carried in the downlink control channel.
  • the time window for the first information enhancement transmission may be determined either by the base station or by an LTE or LTE-A system or network. If preset by the LTE or LTE-A system or network, the determining module 81 is configured to determine a time window of the first information enhanced transmission according to a preset, wherein a starting frame number including a predetermined time window is preset a start subframe number of a predetermined time window, a start OFDM number of a predetermined time window, a length of time of a predetermined time window, and a predetermined time interval between two adjacent time windows or A variety.
  • the preset is preset by the LTE or LTE-A system or the network, and the base station and the user equipment both apply the preset.
  • the starting frame number may be a radio frame numbered 0
  • the starting subframe number may be a subframe numbered
  • the time window duration may be 64 radio frames
  • the time interval between two adjacent time windows may be 64 wireless frames.
  • the receiving module 82 is configured to receive the first information in the time window, and receive the first information that is repeatedly sent multiple times in the time window; wherein, when the first information is the MIB, receive more than 4 times in the time window.
  • the repeatedly transmitted MIB wherein when the first information is SIB1, more than 4 repeated transmissions of SIB1 are received in the time window, or when the first information is SIB2, K times of repeated transmissions of SIB2 are received in the time window.
  • K is a fixed integer greater than 1, or, when the first information is the first control information or the second control information, receives more than one repeated transmission of the first control information or the second control information in the time window.
  • the time window may be greater than 40 ms, and the MIB is repeatedly transmitted more than 4 times in the time window; if the first information is SIB1, the time window may be greater than 80 ms, and the time window is received more than 4 times repeatedly transmitted SIB1; if the first information is SIB2, receive more than K times of repeated transmissions of SIB1 in the time window, K is a fixed integer greater than 1; if the first information is the first control information or the second control information And receiving, by the time window, more than one repeated transmission of the first control information or the second control information.
  • the receiving module 82 is configured to receive the first information that is repeatedly sent multiple times by using the same modulation and decoding mode in the time window and/or using the same-sized time-frequency resource.
  • the receiving module 82 is further configured to combine the received first information that is repeatedly sent, and combine the information to detect the combined information. Since the first information received within the time window is the same, the merge detection can be performed, thereby enhancing the reliability of the first information transmission. Therefore, first, the determination module 81 determines the time window of the first information, so that the receiving module 82 performs combined detection on the received first information within the determined time window.
  • the subframe used for repeatedly transmitting the first information is pre-defined, and the receiving module 82 is configured to receive the first information that is repeatedly sent multiple times in a predetermined subframe.
  • the first information is transmitted on a predetermined subframe.
  • the receiving module is configured to receive the first information that is repeatedly sent multiple times on the configured subframe.
  • the system information may be various, such as MIB, SIB1, SIB2, etc., and other SIBs other than SIB1 are distributed in the SI, so when the system information is updated, the receiving module 82 needs to determine which system information or system information. An update has occurred.
  • the receiving module 82 is further configured to descramble and succeed according to the first RNTI on the downlink control channel carrying the first control information, the second control information, or the third control information for scheduling the SI, if only the system information is updated. After detecting the downlink control channel, determining that the system information has not been updated, or performing descrambling according to the second RNTI and successfully detecting the downlink control channel, determining that the system information is updated;
  • the receiving module 82 is further configured to perform descrambling on the PDSCH carrying the SIB1, the SIB2, or the SI, and successfully detect the PDSCH according to the first RNTI, and determine that the system information is not updated, or the PDSCH is descrambled according to the second RNTI, and the PDSCH is successfully detected. Then determining that the system information is updated;
  • the receiving module 82 is further configured to: obtain an indication field in a DCI that schedules the SIB1, the SIB2, or the SI, and determine whether the system information is updated according to the indication field;
  • the receiving module 82 is further configured to determine whether system information is updated according to the redundant bit or the padding bit by using redundant bits or padding bits in the DCI of the scheduling SIB1, SIB2 or SI.
  • the receiving module 82 is further configured to pass the RNTI on the downlink control channel carrying the first control information, the second control information, or the third control information for scheduling the SI. De-scrambling to determine that N system information in the M system information is updated, where M, N is an integer, M is greater than or equal to 2, and N is less than or equal to M;
  • the receiving module 82 is further configured to determine, by using the RNTI descrambling on the PDSCH that carries the SIB1, the SIB2, or the SI, that the N pieces of system information are updated, where M, N are integers, and M is greater than or equal to 2, N Less than or equal to M;
  • the receiving module 82 is further configured to: obtain an indication field in the DCI that schedules the SIB1, the SIB2, or the SI, and determine, according to the indication field, that the N pieces of system information in the M system information are updated, where M, N is an integer, and M is greater than or equal to 2. N is less than or equal to M;
  • the receiving module 82 is further configured to determine, by using redundant bits or padding bits in the DCI of the scheduling SIB1, SIB2, or SI, that N system information in the M system information is updated, where M, N is an integer, and M is greater than or equal to 2. , N is less than or equal to M;
  • the receiving module 82 is further configured to: obtain an indication information element in the MIB, the SIB1, the paging message, or the SIB2, and determine, according to the indication information element, that the N system information in the M system information is updated, where M, N is an integer, and M is greater than Equal to 2, N is less than or equal to M.
  • FIG. 9 is a schematic structural diagram of a second embodiment of a user equipment according to the present invention.
  • the user equipment includes a determination module 91 and a reception module 92, and the determination module 91 includes a first unit 911 and a second unit 912.
  • the determining module 91 is configured to determine a time window of the first information enhanced transmission, where the first information content transmitted in the time window is unchanged, and the first information is MIB, SIB1, SIB2, and the first control information used to schedule the SIB1. Or any one of the second control information for scheduling SIB2.
  • the receiving module 92 is configured to receive the first information in the time window, and receive the first information that is repeatedly sent multiple times in the time window; wherein, when the first information is the MIB, receive more than 4 times in the time window.
  • the repeatedly transmitted MIB wherein when the first information is SIB1, more than 4 repeated transmissions of SIB1 are received in the time window, or when the first information is SIB2, K times of repeated transmissions of SIB2 are received in the time window.
  • K is a fixed integer greater than 1, or, when the first information is the first control information or the second control information, receives more than one repeated transmission of the first control information or the second control information in the time window.
  • the first unit 911 is configured to obtain a time window configuration parameter of a time window of the first information enhanced transmission, where the time window configuration parameter includes a start frame number of the time window, a start subframe number of the time window, and a time window.
  • the time window configuration parameter includes a start frame number of the time window, a start subframe number of the time window, and a time window.
  • the user equipment needs to receive the time window configuration parameter of the base station to determine the time window.
  • the user equipment first needs to determine a time window configuration parameter, and the time window configuration parameter is received from the base station.
  • the start frame number may be a radio frame numbered 0, the start subframe number may be a subframe numbered 0, and the time window duration may be 64 radio frames, and the time interval between two adjacent time windows may be It is 64 radio frames.
  • the first unit 911 is configured to receive the SIB1 or MIB including the time window configuration parameter, and obtain the time window configuration parameter from the SIB1 or the MIB.
  • the first unit 911 is configured to receive the MIB including the time window configuration parameter and obtain the time window configuration parameter from the MIB.
  • the second unit 912 is configured to determine a time window of the first information enhanced transmission according to the time window configuration parameter.
  • FIG. 10 is a schematic structural diagram of a third embodiment of a base station according to the present invention.
  • the base station includes a processor 101, a receiver 102, an emitter 103, a random access memory (RAM) 104, a read only memory (ROM) 105, and a bus 106. And a Network Interface Unit 107.
  • the processor 101 passes through the bus 106.
  • the receiver 102, the transmitter 103, the random access memory 104, the read only memory 105, and the network interface unit 107 are coupled respectively.
  • the base station needs to be operated, it is cured in the read only memory 105.
  • BIOS Basic input/output system
  • BIOS Basic input/output system
  • the loader boots the system to boot and directs the base station to normal operation. After the base station enters the normal running state, the application is run in the random access memory 104 (Application) Programs and operating system (OS), making:
  • the processor 101 is configured to determine a time window of the first information enhanced transmission, where the first information content transmitted in the time window is unchanged, and the first information is MIB, SIB1, SIB2, and the first control information used to schedule the SIB1. Or any one of the second control information for scheduling SIB2.
  • the transmitter 103 is configured to perform the sending of the first information in the time window, and repeatedly send the first information multiple times in the time window, wherein when the first information is the MIB, the number of repeated transmissions of the MIB in the time window is greater than 4 Or, when the first information is SIB1, the number of repeated transmissions of SIB1 in the time window is greater than 4 times, or when the first information is SIB2, the number of repeated transmissions of SIB2 in the time window is K times, K is A fixed integer greater than 1, or, when the first information is the first control information or the second control information, the number of times the first control information or the second control information is repeatedly transmitted in the time window is greater than one time.
  • FIG. 11 is a schematic structural diagram of a third embodiment of a user equipment according to the present invention.
  • the user equipment includes a processor 111, a receiver 112, an emitter 113, a random access memory (RAM) 114, a read only memory (ROM) 115, and a bus 116. And a Network Interface Unit 117.
  • the processor 111 passes through the bus 116.
  • the receiver 112, the transmitter 113, the random access memory 114, the read only memory 115, and the network interface unit 117 are coupled respectively.
  • the user equipment needs to be operated, it is cured in the read only memory 115.
  • BIOS Basic input/output system
  • OS operating system
  • the processor 111 is configured to determine a time window of the first information enhanced transmission, where the first information content transmitted in the time window is unchanged, and the first information is MIB, SIB1, SIB2, and the first control information used to schedule the SIB1. Or any one of the second control information for scheduling SIB2.
  • the receiver 112 is configured to receive the first information in the time window, and receive the first information that is repeatedly sent multiple times in the time window, wherein when the first information is the MIB, the receiving is more than 4 times in the time window.
  • K is a fixed integer greater than 1, or, when the first information is the first control information or the second control information, receives more than one repeated transmission of the first control information or the second control information in the time window.
  • the present invention also provides a communication system for communicating between the base station and the user equipment.
  • the communication system sets a time window for the first information enhancement transmission, wherein the first information content transmitted in the time window does not change, and the first information is MIB, SIB1, SIB2, first control information for scheduling SIB1, or Arranging any one of the second control information of the SIB2; in the time window, the first information is repeatedly transmitted, wherein when the first information is the MIB, the MIB is repeatedly transmitted in the time window at least five times.
  • the first information is SIB1, at least 5 times of repeated transmission of SIB1 is performed in the time window, or when the first information is SIB2, K times of repeated transmissions SIB2 are performed in the time window, and K is fixed by more than 1.
  • An integer, or when the first information is the first control information or the second control information, the repeated transmission of the first control information or the second control information is performed at least twice in the time window.
  • the time window for setting the first information enhanced transmission by the communication system includes: a start frame number of the specified time window, a start subframe number of the specified time window, an initial OFDM number of the specified time window, and a predetermined time.
  • the communication system can be used as a hardware environment supporting base stations and user equipments, or a software environment supporting base stations and user equipment, such as communication standards or communication protocols.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • An integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a computer readable storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a management server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read only memory (ROM, Read-Only) Memory, random access memory (RAM), disk or optical disk, and other media that can store program code.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

L'invention concerne un procédé de transmission d'informations, une station de base, un équipement d'utilisateur, et un système de communication. Le procédé de transmission consiste à : déterminer une fenêtre temporelle pour une transmission améliorée de premières informations, le contenu des premières informations transmises dans la fenêtre temporelle ne changeant pas et les premières informations étant un MIB, un SIB1, un SIB2, des premières informations de commande pour programmer le SIB1 ou des secondes informations de commande pour programmer le SIB2; et envoyer les premières informations dans la fenêtre temporelle et renvoyer les premières informations dans la fenêtre temporelle une pluralité de fois. Quand les premières informations sont le MIB, le nombre de fois où le MIB est renvoyé dans la fenêtre temporelle est supérieur à 4; quand les premières informations sont le SIB1, le nombre de fois où le SIB1 est renvoyé dans la fenêtre temporelle est supérieur à 4; quand les premières informations sont le SIB2, le nombre de fois où le SIB2 est renvoyé dans la fenêtre temporelle est égal à K, K étant un nombre entier fixe supérieur à 1; ou bien quand les premières informations sont les premières informations de commande ou les secondes informations de commande, le nombre de fois où les premières informations de commande ou les secondes informations de commande sont renvoyées dans la fenêtre temporelle est supérieur à 1. La mise en œuvre de la présente invention permet d'améliorer la transmission du MIB, du SIB1, du SIB2, des informations de commande pour programmer le SIB1 ou des secondes informations de commande pour programmer le SIB2, et d'améliorer la fiabilité de transmission d'informations système et d'informations de commande.
PCT/CN2013/084523 2013-09-27 2013-09-27 Procédé de transmission d'informations, station de base, équipement d'utilisateur, et système de communication WO2015042892A1 (fr)

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CN107615865A (zh) * 2015-05-15 2018-01-19 株式会社Ntt都科摩 基站、用户装置以及广播信息发送接收方法
EP3297381A4 (fr) * 2015-05-15 2018-04-18 NTT DoCoMo, Inc. Station de base, dispositif d'utilisateur et procédé de transmission/réception d'informations de diffusion
CN107615865B (zh) * 2015-05-15 2021-07-06 株式会社Ntt都科摩 基站、用户装置以及广播信息发送接收方法
US11337142B2 (en) 2015-05-15 2022-05-17 Ntt Docomo, Inc. Base station, user equipment and broadcast information transmission and reception method
CN111246581A (zh) * 2017-07-19 2020-06-05 北京小米移动软件有限公司 传输信息的方法及装置
CN111246581B (zh) * 2017-07-19 2023-11-17 北京小米移动软件有限公司 传输信息的方法及装置

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