WO2018223901A1 - Procédé et dispositif de transmission de message de radiorecherche - Google Patents

Procédé et dispositif de transmission de message de radiorecherche Download PDF

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Publication number
WO2018223901A1
WO2018223901A1 PCT/CN2018/089586 CN2018089586W WO2018223901A1 WO 2018223901 A1 WO2018223901 A1 WO 2018223901A1 CN 2018089586 W CN2018089586 W CN 2018089586W WO 2018223901 A1 WO2018223901 A1 WO 2018223901A1
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WIPO (PCT)
Prior art keywords
paging channel
control signaling
paging
scheduled
frequency resource
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PCT/CN2018/089586
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English (en)
Chinese (zh)
Inventor
周明宇
云翔
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北京佰才邦技术有限公司
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Publication of WO2018223901A1 publication Critical patent/WO2018223901A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting a paging message.
  • the communication system provides communication services for user terminals through radio access network devices (such as base stations) and core network devices (such as home location registers).
  • radio access network devices such as base stations
  • core network devices such as home location registers.
  • the signal penetration loss is large
  • the channel fading is large
  • the communication of the user terminal is made. decline in quality. Therefore, it is necessary to expand the signal energy or quality between the user terminal and the base station, and perform coverage enhancement on each signal between the user terminal and the base station, including a paging message.
  • the paging message is carried in the paging channel, and the paging message is enhanced by coverage, including coverage enhancement on the paging channel and the control signaling for scheduling the paging channel.
  • the control signaling of the paging channel and the scheduled paging channel are all based on narrowband transmission.
  • the channel is always available, and the coverage enhancement of the paging message is achieved by repeated transmission of the paging channel in the time domain and control signaling for scheduling the paging channel.
  • LBT Listening Before Talk
  • the embodiment of the present application provides a method and an apparatus for transmitting a paging message, and for a communication system operating in an unlicensed frequency band, repeatedly transmitting a paging channel and introducing a paging channel by introducing more time-frequency resources. Control signaling to achieve coverage enhancement of paging messages.
  • the embodiment of the present application provides a method for transmitting a paging message, which is applicable to a base station operating in an unlicensed frequency band, where the method includes:
  • a time-frequency resource for carrying control signaling of the paging channel and scheduling the paging channel, where the time-frequency resource includes a repetition of control signaling of the paging channel and the scheduled paging channel Transmitting the number of subframes occupied, and repeating transmission of the paging channel and the control signaling of the scheduled paging channel by one or more of a positional relationship in a time domain;
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, when the time-frequency resource includes the number of subframes occupied by the paging channel repeated transmission, the paging channel repeated transmission occupies one Or multiple subframes.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, when the time-frequency resource includes the number of subframes occupied by the control signaling repeated transmission of the scheduled paging channel, the scheduling The control signaling repeated transmission of the paging channel occupies one subframe.
  • time-frequency resource includes repeated transmission of control signaling of the paging channel and the scheduled paging channel on a time domain
  • the transmitting the control signaling of the paging channel and the scheduled paging channel to the terminal according to the determined time-frequency resource including:
  • the paging channel is transmitted in the next subframe.
  • time-frequency resource includes repeated transmission of control signaling of the paging channel and the scheduled paging channel on a time domain
  • the transmitting the control signaling of the paging channel and the scheduled paging channel to the terminal according to the determined time-frequency resource including:
  • time-frequency resource includes repeated transmission of control signaling of the paging channel and the scheduled paging channel on a time domain And the transmitting the control signaling of the scheduled paging channel to the terminal according to the determined time-frequency resource, including:
  • time-frequency resource includes repeated transmission of control signaling of the paging channel and the scheduled paging channel on a time domain
  • the transmitting the control signaling of the paging channel and the scheduled paging channel to the terminal according to the determined time-frequency resource including:
  • time-frequency resource includes repeated transmission of control signaling of the paging channel and the scheduled paging channel on a time domain And the transmitting the control signaling of the scheduled paging channel to the terminal according to the determined time-frequency resource, including:
  • time-frequency resource includes repeated transmission of control signaling of the paging channel and the scheduled paging channel on a time domain And the transmitting the control signaling of the scheduled paging channel to the terminal according to the determined time-frequency resource, including:
  • the control signaling of the scheduled paging channel is sent in a designated subframe in a paging window.
  • an implementation is further provided, the paging window overlapping with the sounding reference signal transmission window.
  • an implementation is further provided, the paging window not overlapping with the sounding reference signal transmission window.
  • the method further includes:
  • the control signaling and/or paging channel for the scheduled paging channel located within the sounding reference signal transmission window is scrambled according to the control signaling of the scheduled paging channel and/or the index of the subframe in which the paging channel is currently located.
  • the method further includes:
  • the control signaling and/or paging channel for the scheduled paging channel located in the sounding reference signal transmission window is scrambled according to the location where the sounding reference signal starts transmitting the subframe.
  • the method further includes:
  • scrambling is performed according to the control signaling of the scheduled paging channel and/or the index of the subframe in which the paging channel is currently located.
  • the method further includes:
  • scrambling is performed according to the control signaling of the scheduled paging channel and/or the location where the paging channel starts transmitting the subframe.
  • the paging window being a length of time capable of transmitting control signaling for scheduling a paging channel.
  • the embodiment of the present application provides a method for transmitting a paging message, which is applicable to a terminal that operates in an unlicensed frequency band, and the method includes:
  • the time-frequency resource includes the paging channel and
  • the control signaling of the scheduled paging channel repeats the number of subframes occupied by the transmission, and the control signaling of the paging channel and the scheduled paging channel repeatedly transmits one or more of the positional relationships in the time domain.
  • the embodiment of the present application provides a device for transmitting a paging message, which is applicable to a base station operating in an unlicensed frequency band, where the device includes:
  • a determining unit configured to determine, according to a cell coverage enhancement capability, a time-frequency resource for carrying control signaling of a paging channel and a paging channel, where the time-frequency resource includes the paging channel and the scheduled paging channel Control signaling repeats the number of subframes occupied by the transmission, and repeats transmission of the paging channel and the control signaling of the scheduled paging channel in one or more of a positional relationship in the time domain;
  • a sending unit configured to send control signaling of the paging channel and the scheduled paging channel to the terminal according to the determined time-frequency resource.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, when the time-frequency resource includes the number of subframes occupied by the paging channel repeated transmission, the paging channel repeated transmission occupies one Or multiple subframes.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, when the time-frequency resource includes the number of subframes occupied by the control signaling repeated transmission of the scheduled paging channel, the scheduling The control signaling repeated transmission of the paging channel occupies one subframe.
  • the sending unit is specifically configured to:
  • the paging channel is transmitted in the next subframe.
  • the sending unit is specifically configured to:
  • the sending unit is specifically configured to:
  • the sending unit is specifically configured to:
  • the sending unit is specifically configured to:
  • the sending unit is specifically configured to:
  • the control signaling of the scheduled paging channel is sent in a designated subframe in a paging window.
  • an implementation is further provided, the paging window overlapping with the sounding reference signal transmission window.
  • an implementation is further provided, the paging window not overlapping with the sounding reference signal transmission window.
  • the device further includes:
  • a first scrambling unit configured to control signaling and/or a paging channel of the scheduled paging channel located in the sounding reference signal transmission window, according to the control signaling of the scheduled paging channel and/or the current location of the paging channel
  • the index of the frame is scrambled.
  • the device further includes:
  • the second scrambling unit is configured to perform scrambling on the control signaling and/or paging channel of the scheduled paging channel located in the sounding reference signal transmission window according to the location where the sounding reference signal starts to transmit the subframe.
  • the device further includes:
  • the third scrambling unit is configured to perform scrambling on the control signaling and/or paging channel of the scheduled paging channel according to the control signaling of the scheduled paging channel and/or the index of the subframe in which the paging channel is currently located.
  • the device further includes:
  • a fourth scrambling unit configured to perform, for the control signaling and/or the paging channel of the scheduled paging channel, the scrambling according to the control signaling of the scheduled paging channel and/or the location where the paging channel starts transmitting the subframe .
  • the paging window being a length of time capable of transmitting control signaling for scheduling a paging channel.
  • the embodiment of the present application provides a device for transmitting a paging message, which is applicable to a terminal operating in an unlicensed frequency band, where the device includes:
  • a receiving unit configured to receive a paging channel sent by the base station and control signaling for scheduling the paging channel according to the time-frequency resource used for carrying the paging channel and the control signaling of the paging channel; the time-frequency resource includes And the number of subframes occupied by the paging signaling and the control signaling of the scheduled paging channel, and the repeated transmission of the paging signaling and the scheduled paging channel in the time domain One or more.
  • an embodiment of the present application provides a paging message transmission apparatus, which is applicable to a base station operating in an unlicensed frequency band, where the apparatus includes a processor, a memory, and a transceiver; the processor, the memory, and the transceiver. Communicating via a bus; the memory is configured with computer code, the processor being capable of invoking the code to control the transceiver;
  • the processor is configured to determine, according to a cell coverage enhancement capability, a time-frequency resource used for carrying a paging channel and scheduling control channel signaling signaling by the transceiver, where the time-frequency resource includes the paging
  • the number of subframes occupied by the channel and the control signaling of the scheduled paging channel are repeatedly transmitted, and the paging signal and the control signaling of the scheduled paging channel are repeatedly transmitted in one of a positional relationship in the time domain or Multiple
  • the processor is configured to send, by using the transceiver, the control signaling of the paging channel and the scheduled paging channel to the terminal according to the determined time-frequency resource.
  • an embodiment of the present application provides a paging message transmission apparatus, which is applicable to a terminal operating in an unlicensed frequency band, where the apparatus includes a processor, a memory, and a transceiver; the processor, the memory, and the transceiver. Communicating via a bus; the memory is configured with computer code, the processor being capable of invoking the code to control the transceiver;
  • the processor is configured to receive, by using the transceiver, a paging channel sent by a base station and a control signaling for scheduling a paging channel according to a time-frequency resource used for carrying a paging channel and a control signaling for scheduling a paging channel.
  • the time-frequency resource includes the number of subframes occupied by the paging channel and the control signaling repeated transmission of the scheduled paging channel, and the repeated transmission of the control signaling of the paging channel and the scheduled paging channel One or more of the positional relationships on the time domain.
  • the embodiment of the present application provides a computer readable storage medium, where the non-transitory computer readable storage medium stores computer instructions, wherein the computer instructions cause the computer to perform any of the foregoing first aspects of the present application.
  • a method of transmitting a paging message A method of transmitting a paging message.
  • an embodiment of the present application provides a computer readable storage medium, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program When the instructions are executed by the computer, the computer can perform the method of transmitting any of the paging messages of the above second aspect of the present application.
  • the embodiment of the present application provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instruction is When the computer is executed, the computer can execute the transmission method of any of the paging messages in the above first aspect of the present application.
  • an embodiment of the present application provides a computer program product, where the computer program product includes a computer program stored on a non-transitory computer readable storage medium, the computer program includes program instructions, when the program instruction is When the computer is executed, the computer can execute the transmission method of any of the above-mentioned second aspects of the present application.
  • the embodiment of the present application provides a method and a device for transmitting a paging message, and for a communication system operating in an unlicensed frequency band, repeating the number of subframes occupied by the paging channel and the control signaling of the paging channel, and Their positional relationship in the time domain introduces more time-frequency resources to carry the paging channel and control signaling of the paging channel, and realizes the repeated transmission of the control signaling of the paging channel and the scheduled paging channel.
  • the transmission efficiency of the paging message realizes the coverage enhancement of the paging message.
  • FIG. 1 is a flowchart of a method for transmitting a paging message according to an embodiment of the present application
  • FIG. 2 is a flowchart of another method for transmitting a paging message according to an embodiment of the present application
  • FIG. 3 is a flowchart of another method for transmitting a paging message according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of transmission of a paging message according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of another paging message transmission according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another paging message transmission according to an embodiment of the present application.
  • FIG. 7 is a flowchart of another method for transmitting a paging message according to an embodiment of the present application.
  • FIG. 8 is a flowchart of another method for transmitting a paging message according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another paging message transmission according to an embodiment of the present application.
  • FIG. 10 is a flowchart of another method for transmitting a paging message according to an embodiment of the present application.
  • FIG. 11 is a flowchart of another method for transmitting a paging message according to an embodiment of the present application.
  • FIG. 12 is a structural block diagram of a device for transmitting a paging message according to an embodiment of the present application.
  • FIG. 13 is a structural block diagram of another apparatus for transmitting a paging message according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a device for transmitting a paging message according to an embodiment of the present disclosure
  • FIG. 15 is a schematic structural diagram of another apparatus for transmitting a paging message according to an embodiment of the present application.
  • first and second may be used to describe the scrambling unit in the embodiments of the present application, these scrambling units should not be limited to these terms. These terms are only used to distinguish files from each other.
  • the first scrambling unit may also be referred to as a second scrambling unit without departing from the scope of the embodiments of the present application.
  • the second scrambling unit may also be referred to as a first scrambling unit.
  • the word “if” as used herein may be interpreted as “when” or “when” or “in response to determining” or “in response to detecting.”
  • the phrase “if determined” or “if detected (conditions or events stated)” may be interpreted as “when determined” or “in response to determination” or “when detected (stated condition or event) “Time” or “in response to a test (condition or event stated)”.
  • the embodiment of the present application provides a method for transmitting a paging message, which is applied to a mobile communication system of an unlicensed frequency band (especially for a cellular communication system operating independently in an unlicensed frequency band, such as MulteFire (referred to as MF)), a terminal and During the transmission of paging messages between base stations.
  • a mobile communication system of an unlicensed frequency band especially for a cellular communication system operating independently in an unlicensed frequency band, such as MulteFire (referred to as MF)
  • MF unlicensed frequency band
  • the mobile communication technology of the present application may be WCDMA (Wideband Code Division Multiple Access), CDMA2000 (Code Division Multiple Access 2000), and TD-SCDMA (Time Division-Synchronous Code Division). Multiple Access, Time Division Synchronous Code Division Multiple Access), WiMAX (Worldwide Interoperability for Microwave Access), LTE/LTE-A (Long Term Evolution/Long Term Evolution-Advanced) ), LAA (Licensed-Assisted Access, wireless access based on licensed bands), MulteFire, and subsequent fifth, sixth, and Nth generation mobile communication technologies.
  • WCDMA Wideband Code Division Multiple Access
  • CDMA2000 Code Division Multiple Access 2000
  • TD-SCDMA Time Division-Synchronous Code Division
  • Multiple Access Time Division Synchronous Code Division Multiple Access
  • WiMAX Worldwide Interoperability for Microwave Access
  • LTE/LTE-A Long Term Evolution/Long Term Evolution-Advanced
  • LAA Licensed-Assisted Access, wireless access based on licensed bands
  • MulteFire and subsequent
  • MulteFire is a wireless access technology that extends LTE to unlicensed bands, where unlicensed band carriers can be serviced independently without the aid of licensed band carriers.
  • This technology has also become stand-alone LTE-U (stand-alone LTE-U).
  • the MF physical layer introduces a WiFi-like carrier sensing technology (LBT, Listen Before) Talk) mechanism.
  • LBT WiFi-like carrier sensing technology
  • the base station refers to a form of a radio station, and refers to a radio access network device that transmits various messages to a terminal through a mobile communication switching center in a certain radio coverage area.
  • the terminal refers to a terminal side product that can support the communication protocol of the land mobile communication system, and a special modem module (Wireless Modem), which can be integrated by various types of terminal forms such as a mobile phone, a tablet computer, and a data card. Communication function.
  • the paging message is carried in the paging channel, and one of its main functions is to page a user to establish a connection with the network to implement data transmission and reception.
  • the present application proposes a method for transmitting a paging message, that is, a paging channel and a control signaling transmission method for scheduling a paging channel, for paging transmission in a deep fading scenario, to improve transmission of an unlicensed band mobile communication system. effectiveness.
  • the method includes:
  • the base station determines, according to a cell coverage enhancement capability, a time-frequency resource used for carrying a paging channel and a control signaling for scheduling a paging channel, where the time-frequency resource includes the paging channel and the scheduled paging channel.
  • Control signaling repeats the number of subframes occupied by the transmission, and the paging channel and the control signaling of the scheduled paging channel repeatedly transmit one or more of the positional relationships in the time domain.
  • the paging channel repeated transmission occupies one or more subframes. That is, the paging channel is repeatedly transmitted in one or more subframes.
  • the control signaling repeated transmission of the scheduled paging channel occupies one subframe. That is, the control signaling of the scheduled paging channel is repeatedly transmitted in one subframe.
  • the paging channel and the control signaling of the scheduled paging channel repeatedly transmit the positional relationship in the time domain, and may have different configurations according to different communication requirements.
  • the base station sends control signaling of the paging channel and the scheduled paging channel to the terminal according to the determined time-frequency resource.
  • the terminal receives control signaling of the paging channel and the scheduled paging channel, and decodes the paging channel to obtain paging information.
  • the control signaling for scheduling the paging channel is based on an ePDCCH (enhance physical downlink control channel) or an mPDCCH (Machine-Type).
  • the communication physical downlink control channel is transmitted.
  • the embodiment of the present application provides a method for transmitting a paging message.
  • the number of subframes occupied by the transmission of the paging channel and the scheduling paging channel is repeatedly transmitted, and they are
  • the positional relationship in the time domain introduces more time-frequency resources to carry the paging channel and control signaling of the paging channel, and realizes repeated transmission of control signaling of the paging channel and the scheduled paging channel, thereby improving paging
  • the transmission efficiency of the message realizes the coverage enhancement of the paging message.
  • step 102 when the time-frequency resource includes a positional relationship between the paging channel and the control signaling of the scheduled paging channel and the transmission in the time domain, the scheduling paging channel Control signaling and paging channels can be sent in different subframes in succession. Therefore, another possible implementation manner of the embodiment of the present application further provides the following method flow for the implementation of step 102, as shown in FIG. 2, including:
  • the base station sends control signaling of the scheduled paging channel according to the determined time-frequency resource.
  • the base station After the control signaling of the scheduled paging channel is sent, the base station sends the paging channel in a next subframe.
  • step 1021 and step 1022 the paging channel and the corresponding control signaling of the scheduled paging channel are not sent in the same subframe.
  • Definition k is the initial transmission subframe of the paging channel in the time domain
  • step 102 when the time-frequency resource includes a positional relationship between the paging channel and the control signaling of the scheduled paging channel, which is repeatedly transmitted in the time domain, the paging channel and scheduling The control signaling of the paging channel can also be transmitted simultaneously. Therefore, another possible implementation manner of the embodiment of the present application further provides the following method flow for the implementation of step 102, as shown in FIG. 3, including:
  • the base station sends control signaling of the scheduled paging channel and the paging channel in the same subframe according to the determined time-frequency resource.
  • paging channel and the paging signal control signaling are repeatedly configured to transmit the positional relationship in the time domain by using a paging window (POW)
  • POW paging window
  • the control signaling of the channel is sent in the POW. Therefore, another possible implementation manner of the embodiment of the present application further provides the following method flow for the implementation of the step 102, including:
  • the base station sends, according to the determined time-frequency resource, control signaling of the scheduled paging channel in a paging window.
  • the POW refers to the length of time that the control signaling of the scheduled paging channel can be sent.
  • the control signaling for scheduling the paging channel is sent within the POW, and may not be located outside the POW.
  • the paging window is located in the paging frame (PF) and is only used to send control signaling for scheduling the paging channel. At this time, the paging channel can be sent outside the POW.
  • the paging channel and its corresponding scheduled paging channel may also be defined.
  • the control signaling is sent in the POW. Therefore, another possible implementation of the embodiment of the present application provides the following method flow for the implementation of the step 102, including:
  • the base station sends control signaling of the scheduled paging channel and the paging channel in a paging window according to the determined time-frequency resource.
  • the paging channel and its corresponding scheduling paging channel control signaling are sent in the POW, and both channels are not located outside the POW.
  • the base station may choose not to transmit, or only transmit a part.
  • FIG. 4 it is a schematic diagram of a base station transmitting a paging channel and scheduling paging channel control signaling in one POW, and transmitting only a part of the paging channel.
  • FIG. 4 there are three paging channels and three control signaling corresponding to the scheduled paging channel, and 031 to 034 are subframes for channel transmission.
  • 011 represents a paging window length in which a paging message can be sent in a paging frame
  • 021, 022, and 023 are control signalings for scheduling a paging channel, and are repeatedly transmitted in subframes 031, 032, and 033, respectively.
  • the scheduled paging channels are 041, 042, and 043, respectively. According to the cell coverage enhancement capability, all three paging channels need to be repeatedly transmitted in 3 subframes, such as paging channel 041. Since the paging channel must be within the POW, the paging channels 042, 043 cannot satisfy the repeated transmission within one POW. Therefore, the base station transmits paging channels 042, 043 in subframes 032/033 and subframe 033, respectively, and does not achieve maximum retransmission of paging channels 042, 043. At this time, the base station may also choose not to transmit the paging channel 042, 043, and also does not transmit the control signaling 022, 023 corresponding to the scheduled paging channel.
  • control signaling for scheduling the paging channel is sent in any subframe in the PW or in the specified subframe. Therefore, another possible implementation manner of the embodiment of the present application is implemented for the step 102. The following two implementation methods are also provided.
  • the base station sends, according to the determined time-frequency resource, control signaling of the scheduled paging channel in any subframe in a paging window.
  • FIG. 5 a schematic diagram of control signaling and paging channels for transmitting a scheduled paging channel based on the first implementation method is shown.
  • 231 to 236 are subframes for channel transmission
  • 211 represents a paging window length in which paging messages can be transmitted in one paging frame
  • 221, 222, and 223 are control signaling for scheduling paging channels.
  • Repeated transmissions are made in subframes 231, 232, and 233, respectively, and the scheduled paging channels are 241, 242, and 243, respectively.
  • the paging channel starts transmitting within one subframe after the control signaling corresponding to the scheduled paging channel.
  • any one paging channel is repeatedly transmitted in 3 subframes.
  • the control signaling for scheduling the paging channel in FIG. 5 is not limited by other paging channels and can be transmitted in any subframe.
  • the coverage enhancement user needs to blindly check any subframe in a paging window, and obtain control signaling for scheduling the paging channel to obtain scheduling information.
  • the process of decoding the paging message by the terminal that enhances the user is as follows:
  • Step 1 The DCI (Downlink Control Information) corresponding to the P-RNTI (Paging-Radio Network Temporary Identifier) is blindly detected in any one of the PWs.
  • P-RNTI Paging-Radio Network Temporary Identifier
  • the P-RNTI is used by the terminal to determine whether the currently blindly detected DCI is used to schedule a paging channel.
  • Step 2 Determine if the P-RNTI is detected. If yes, go to step 3; if no, go to step 4.
  • Step 3 The paging channel is received in m subframes after the control signaling for scheduling the paging channel is transmitted, and the paging message is decoded. At the same time, before the all subframes of the paging channel are not completely received, the DCI corresponding to the P-RNTI in any one of the m subframes is blindly solved based on the P-RNTI.
  • m is the number of subframes occupied by the paging channel in the time domain for repeated transmission.
  • the value of m can be configured by upper layer signaling, or by scheduling control signaling of the paging channel, or by cell coverage enhancement capability and a predefined rule.
  • Step 4 Determine whether PagelessSfsToMonitor (a number of consecutive subframes that do not contain control signaling for scheduling paging channels) is reached. If yes, end paging detection; if no, return to step 1.
  • step 4 when the result of the determination in step 4 is YES, the terminal can continue to detect the paging message, that is, return to step 1.
  • the PagelessSfsToMonitor is used by the terminal to determine whether to stop the blind control scheduling paging channel control signaling before the end of the POW, so as to save energy overhead.
  • Step 5 According to the decoding result in step 3, it is judged whether it is paged. If yes, stop paging message monitoring; if no, go to step 6.
  • Step 6 Determine if the POW is over. If it is over, stop paging message monitoring; if not, continue to blindly control the paging channel control signaling, that is, jump back to step 1.
  • the base station sends control signaling of the scheduled paging channel in a designated subframe in a paging window according to the determined time-frequency resource.
  • the specific implementation may have the following two examples: First, the control signaling for scheduling the paging channel may occur once every n subframes, n depends on the repeated transmission of the paging channel in the time domain.
  • the number of occupied subframes m that is, the value of n depends on the upper layer signaling configuration, the control signaling for scheduling the paging channel, or the coverage enhancement capability of the cell.
  • Let the interval between the paging channel start transmitting subframe and the control paging end scheduling subframe of the scheduled paging channel be p, then n m+p.
  • a specific subframe within the paging window can be specified, for example, subframe 0 and subframe 5 are used to send control signaling for scheduling paging, without regard to the number of subframes occupied by repeated transmission of the paging channel.
  • FIG. 6 a schematic diagram of control signaling and paging channels for transmitting a scheduled paging channel based on the first example of the second implementation method is shown.
  • 431 to 436 are subframes for channel transmission
  • 411 represents a paging window length in which paging messages can be transmitted in one paging frame
  • 421 and 422 are control signaling for scheduling paging messages, respectively.
  • the sub-frames 431 and 434 are repeatedly transmitted
  • the scheduled paging messages are 441 and 442, respectively.
  • the control signaling of the paging channel and the corresponding scheduled paging channel starts to be transmitted in the same subframe. At the same time, due to coverage enhancement, any one paging channel is repeatedly transmitted in 3 subframes.
  • the control signaling for scheduling the paging channel in FIG. 6 is not transmitted in any subframe, but is transmitted in the subframe after the transmission of the previous paging channel ends, and is transmitted every three subframes, that is, n is 3, m. Is 3, p is 0.
  • the control signaling for scheduling the paging channel appears in a specific subframe within a paging window, and the user does not specify a subframe after the repeated transmission of the paging channel.
  • the DCI corresponding to the P-RNTI is blindly detected during the transmission of the paging channel.
  • the process of covering the enhanced user only blindly detects the control signaling of the paging message on a specific subframe, and the process of decoding the paging message is as follows:
  • Step 1 According to the cell coverage enhancement capability, determine the number of subframes occupied by the paging channel in the time domain, and determine the subframe in which the control signaling of the paging channel can be transmitted in one POW, and in the corresponding subframe.
  • the DCI corresponding to the P-RNTI is blindly detected.
  • Step 2 Determine if the P-RNTI is detected. If yes, go to step 3; if no, go to step 4.
  • Step 3 The paging channel is received in m subframes and the paging message is decoded.
  • Step 4 Determine if PagelessSfsToMonitor is reached. If yes, end paging detection; if no, return to step 1. Note that when the judgment result is YES, the enhanced user can still continue to detect the paging message, that is, return to step 1.
  • Step 5 According to the decoding result of step 3, it is judged whether it is paged. If yes, stop paging message monitoring; if no, go to step 6.
  • Step 6 Determine if the POW is over. If it is over, stop paging message monitoring; if not, continue to blindly control the paging channel control signaling, that is, jump back to step 1.
  • the paging window and the DRS transmission window may overlap. That is, the paging message and the DRS coexistence transmission, and the sending of the DRS can also send the paging message; or no overlap occurs.
  • DRS Discovery Reference Signal
  • the transmission of the paging message may occur in one subframe simultaneously with the DRS, or the transmission subframe of the paging message overlaps with the transmission window of the DRS.
  • the paging window may overlap with the DRS transmission window in time, or may not overlap.
  • the implementation of whether the overlap is specific can be configured through upper layer signaling.
  • the DRS includes a DRS signal sent to a normal user and an enhanced DRS sent to the coverage enhanced user.
  • a possible implementation also provides the following two scrambling rules, which are performed before step 102.
  • the first scrambling rule includes:
  • the base station For control signaling and/or paging channel of a scheduled paging channel located in a sounding reference signal transmission window, the base station according to control signaling of the scheduled paging channel and/or an index of a subframe in which the paging channel is currently located Perform scrambling.
  • the control signaling for scheduling the paging channel located in the DRS transmission window is scrambled according to the index of the currently located subframe, that is, The scrambling sequence is obtained from the current sub-frame index.
  • the corresponding scheduled paging channel is also scrambled according to the index of the currently located subframe. Therefore, when the paging channel performs repeated transmission in multiple subframes, the coverage enhancement user needs to decode and descramble the paging channel of each subframe through the index of the corresponding subframe, and then combine to obtain paging information.
  • the control signaling for scheduling the paging channel is repeatedly transmitted in one subframe, and the scrambling sequence is obtained by formula (1).
  • c init represents the initial seed of the generated wrap sequence
  • n s represents the current sub-frame index. Representing the cell ID, the scrambling sequence of the control signaling for scheduling the paging channel is common to the cell.
  • the scrambling sequence can be obtained in the same way, and will not be described again.
  • the second scrambling rule includes:
  • the base station For control signaling and/or paging channel of the scheduled paging channel located in the sounding reference signal transmission window, the base station performs scrambling according to the location where the sounding reference signal starts transmitting the subframe.
  • the scrambling sequence is based on the location where the DRS starts transmitting the subframe. owned. That is, when the initial transmission subframe of the DRS is the first half frame, and the control signaling for scheduling the paging channel is also located in the first half frame, that is, subframe 0-subframe 4, the scrambling sequence is generated according to the subframe 0; when the DRS is The initial transmission subframe is the second half frame, and the control signaling for scheduling the paging channel is also located in the second half frame, that is, subframe 5-subframe 9, and the scrambling sequence is generated according to the subframe 5.
  • the corresponding scheduled paging channel is scrambled in the same manner. Therefore, when the paging channel is repeatedly transmitted in a plurality of subframes, the coverage enhancement user can directly combine the paging channels in the plurality of subframes and then perform decoding. Because at this time, the same paging channel in multiple subframes uses the same scrambling sequence.
  • scrambling may not be performed according to the second scrambling rule.
  • the control signaling for scheduling the paging channel is repeatedly transmitted in one subframe, and the scrambling sequence thereof is obtained by formula (2).
  • c init represents the initial seed of the generated wrap sequence
  • n s represents the current sub-frame index
  • the second scrambling rule is explained more clearly.
  • the second scrambling rule is further explained by the schematic diagram of the paging message and the DRS coexistence transmission in FIG.
  • 631 to 637 are subframes for channel transmission, 601 indicates a DRS transmission window, 602 indicates a paging window, and 601 and 602 have temporal overlap.
  • 611 denotes transmission of DRS.
  • DRS occupies subframe 631 and subframe 632.
  • 621 is control signaling for scheduling paging channel 641
  • initial transmission subframe of 641 is inside 601
  • scrambling sequence of 641 is based on 631 is generated by the position of the sub-frame.
  • the scrambling sequence of 641 is obtained according to subframe 0; when the 631 subframe is subframe 5-subframe 9, the scrambling sequence of 641 is obtained according to subframe 5.
  • the paging channel 642 of Figure 9 is scheduled by scheduling control signaling 622 of the paging channel, 642 being located outside of 601, so the scrambling of 642 is not affected by 611.
  • the other embodiment of the present application provides the following two scrambling rules, which are performed before step 102.
  • the first type of scrambling rule includes:
  • the base station For control signaling and/or paging channel for scheduling a paging channel, the base station performs scrambling according to control signaling of the scheduled paging channel and/or an index of a subframe in which the paging channel is currently located.
  • the second scrambling rule includes:
  • the base station For control signaling and/or paging channel for scheduling a paging channel, the base station performs scrambling according to control signaling of the scheduled paging channel and/or a location where the paging channel starts transmitting the subframe.
  • the generation of the paging message scrambling sequence depends on the index of the subframe in which the paging message is repeatedly transmitted; In the two scrambling rules, the generation of the paging message scrambling sequence depends on the location where the paging message starts to transmit the subframe, and the same scrambling sequence is used in the repeated transmission.
  • the embodiment of the present application provides a device for transmitting a paging message, which is applicable to the foregoing method, and is applicable to a base station operating in an unlicensed frequency band.
  • the device includes:
  • a determining unit 21 configured to determine, according to a cell coverage enhancement capability, a time-frequency resource for carrying a paging channel and a control signaling for scheduling a paging channel, where the time-frequency resource includes the paging channel and the scheduled paging
  • the control signaling of the channel repeats the number of subframes occupied by the transmission, and the paging channel and the control signaling of the scheduled paging channel repeatedly transmit one or more of the positional relationships in the time domain.
  • the sending unit 22 is configured to send control signaling of the paging channel and the scheduled paging channel to the terminal according to the determined time-frequency resource.
  • the paging channel repeated transmission occupies one or more subframes.
  • the control signaling repeated transmission of the scheduled paging channel occupies one subframe.
  • the transmitting unit 22 is specifically configured to:
  • the paging channel is transmitted in the next subframe.
  • the transmitting unit 22 is specifically configured to:
  • the transmitting unit 22 is specifically configured to:
  • the transmitting unit 22 is specifically configured to:
  • the transmitting unit 22 is specifically configured to:
  • the transmitting unit 22 is specifically configured to:
  • the control signaling of the scheduled paging channel is sent in a designated subframe in a paging window.
  • the paging window overlaps with the sounding reference signal sending window.
  • the paging window does not overlap with the sounding reference signal sending window.
  • the device further includes:
  • a first scrambling unit configured to control signaling and/or a paging channel of the scheduled paging channel located in the sounding reference signal transmission window, according to the control signaling of the scheduled paging channel and/or the current location of the paging channel
  • the index of the frame is scrambled.
  • the device further includes:
  • the second scrambling unit is configured to perform scrambling on the control signaling and/or paging channel of the scheduled paging channel located in the sounding reference signal transmission window according to the location where the sounding reference signal starts to transmit the subframe.
  • the device further includes:
  • the third scrambling unit is configured to perform scrambling on the control signaling and/or paging channel of the scheduled paging channel according to the control signaling of the scheduled paging channel and/or the index of the subframe in which the paging channel is currently located.
  • the device further includes:
  • a fourth scrambling unit configured to perform, for the control signaling and/or the paging channel of the scheduled paging channel, the scrambling according to the control signaling of the scheduled paging channel and/or the location where the paging channel starts transmitting the subframe .
  • the paging window refers to a length of time during which control signaling for scheduling a paging channel can be sent.
  • An embodiment of the present application provides a paging message transmission apparatus, which is applicable to a base station operating in an unlicensed frequency band, and repeatedly transmits the number of occupied subframes by configuring a paging channel and a control signaling for scheduling a paging channel, and they are
  • the positional relationship in the time domain introduces more time-frequency resources to carry the paging channel and control signaling of the paging channel, and realizes repeated transmission of control signaling of the paging channel and the scheduled paging channel, thereby improving paging
  • the transmission efficiency of the message realizes the coverage enhancement of the paging message.
  • the embodiment of the present application provides a device for transmitting a paging message, which is applicable to the foregoing method, and is applicable to a terminal operating in an unlicensed frequency band.
  • the device includes:
  • the receiving unit 31 is configured to receive a paging channel sent by the base station and control signaling for scheduling the paging channel according to the time-frequency resource used for carrying the paging channel and the control signaling for scheduling the paging channel; the time-frequency resource includes The number of subframes occupied by the paging channel and the control signaling of the scheduled paging channel is repeated, and the positional relationship between the paging channel and the control signaling of the scheduled paging channel is repeatedly transmitted in the time domain. One or more of them.
  • the embodiment of the present application provides a paging message transmission apparatus, which is applicable to a terminal operating in an unlicensed frequency band, and repeats the number of subframes occupied by the base station by configuring a paging channel and scheduling paging channel control signaling, and In the positional relationship in the time domain, more time-frequency resources are introduced to carry the paging channel and control signaling of the paging channel, and the repeated transmission of the control signaling of the paging channel and the scheduled paging channel is improved, and the search is improved.
  • the transmission efficiency of the call message realizes the coverage enhancement of the paging message.
  • the embodiment of the present application provides a device for transmitting a paging message, which is applicable to the foregoing method, and is applicable to a base station operating in an unlicensed frequency band.
  • the device includes a processor 41, a memory 42, and a transceiver.
  • the processor 41, the memory 42 and the transceiver 43 communicate via a bus; the memory 42 is configured with computer code, and the processor 41 can call the code to control the transceiver 43.
  • the processor 41 is configured to determine, by the transceiver 43, time-frequency resources for carrying control signaling of a paging channel and scheduling a paging channel according to a cell coverage enhancement capability, where the time-frequency resource includes the The number of subframes occupied by the paging channel and the control signaling of the scheduled paging channel is repeated, and the paging signal and the control signaling of the scheduled paging channel are repeatedly transmitted in a positional relationship in the time domain. one or more.
  • the processor 41 is configured to send control signaling of the paging channel and the scheduled paging channel to the terminal by using the transceiver 43 according to the determined time-frequency resource.
  • the paging channel repeated transmission occupies one or more subframes.
  • the control signaling repeated transmission of the scheduled paging channel occupies one subframe.
  • the processor 41 is configured to The determined time-frequency resource is sent by the transceiver 43 to control signaling of the scheduled paging channel.
  • the processor 41 is further configured to send the paging channel by using the transceiver 43 in the next subframe.
  • the processor 41 is configured to The determined time-frequency resource is sent by the transceiver 43 to the control signaling of the scheduled paging channel and the paging channel in the same subframe.
  • the processor 41 is configured to The determined time-frequency resource is sent by the transceiver 43 to the control signaling of the scheduled paging channel in a paging window.
  • the processor 41 is configured to The determined time-frequency resource is sent by the transceiver 43 to the control signaling of the scheduled paging channel and the paging channel in a paging window.
  • the processor 41 is configured to The determined time-frequency resource is sent by the transceiver 43 to the control signaling of the scheduled paging channel in any subframe within the paging window.
  • the processor 41 is configured to The determined time-frequency resource is transmitted by the transceiver 43 in a designated subframe within the paging window to transmit control signaling of the scheduled paging channel.
  • the paging window overlaps with the sounding reference signal sending window.
  • the paging window does not overlap with the sounding reference signal sending window.
  • the processor 41 is further configured to, by using the transceiver 43, control signaling and/or paging channel of a scheduled paging channel located in a sounding reference signal transmission window, according to a scheduled paging channel.
  • the control signaling and/or the index of the subframe in which the paging channel is currently located is scrambled.
  • the processor 41 is further configured to, by using the transceiver 43, control signaling and/or paging channel of a scheduled paging channel located in a sounding reference signal transmission window, according to the sounding reference signal.
  • the location where the sub-frame is sent is scrambled.
  • the processor 41 is further configured to, by using the transceiver 43, control signaling and/or paging channel for scheduling a paging channel, according to control signaling and/or searching of the scheduled paging channel.
  • the index of the subframe in which the channel is currently located is scrambled.
  • the processor 41 is further configured to, by using the transceiver 43, control signaling and/or paging channel for scheduling a paging channel, according to control signaling and/or searching of the scheduled paging channel.
  • the location where the paging start transmission subframe is located is scrambled.
  • the paging window refers to a length of time during which control signaling for scheduling a paging channel can be sent.
  • An embodiment of the present application provides a paging message transmission apparatus, which is applicable to a base station operating in an unlicensed frequency band, and repeatedly transmits the number of occupied subframes by configuring a paging channel and a control signaling for scheduling a paging channel, and they are
  • the positional relationship in the time domain introduces more time-frequency resources to carry the paging channel and control signaling of the paging channel, and realizes repeated transmission of control signaling of the paging channel and the scheduled paging channel, thereby improving paging
  • the transmission efficiency of the message realizes the coverage enhancement of the paging message.
  • the embodiment of the present application provides a computer readable storage medium, which is disposed in the apparatus shown in FIG. 14.
  • the non-transitory computer readable storage medium stores computer instructions, and the computer instructions cause the computer to perform the above-mentioned homing of the present application.
  • the method of transmitting the message is not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, a computer readable storage medium, which is disposed in the apparatus shown in FIG. 14.
  • the non-transitory computer readable storage medium stores computer instructions, and the computer instructions cause the computer to perform the above-mentioned homing of the present application.
  • the method of transmitting the message is described in FIG. 14.
  • An embodiment of the present application provides a computer program product for use in the apparatus of FIG. 14, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program
  • the program instructions are included, and when the program instructions are executed by a computer, the computer can execute the transmission method of the above paging message of the present application.
  • the embodiment of the present application provides a device for transmitting a paging message, which is applicable to the foregoing method, and is applicable to a terminal operating in an unlicensed frequency band.
  • the device includes a processor 51, a memory 52, and a transceiver.
  • the processor 51, the memory 52 and the transceiver 53 communicate via a bus; the memory 52 is configured with computer code, and the processor 51 can call the code to control the transceiver 53.
  • the processor 51 is configured to receive, by using the transceiver 53, a paging channel sent by the base station and a scheduling paging channel according to the time-frequency resource used for carrying the paging channel and the control signaling for scheduling the paging channel. Signaling; the time-frequency resource includes a number of subframes occupied by the paging channel and the control signaling repeated transmission of the scheduled paging channel, and control signaling of the paging channel and the scheduled paging channel Repeat one or more of the positional relationships on the time domain.
  • the embodiment of the present application provides a paging message transmission apparatus, which is applicable to a terminal operating in an unlicensed frequency band, and repeats the number of subframes occupied by the base station by configuring a paging channel and scheduling paging channel control signaling, and In the positional relationship in the time domain, more time-frequency resources are introduced to carry the paging channel and control signaling of the paging channel, and the repeated transmission of the control signaling of the paging channel and the scheduled paging channel is improved, and the search is improved.
  • the transmission efficiency of the call message realizes the coverage enhancement of the paging message.
  • the embodiment of the present application provides a computer readable storage medium, which is provided in the apparatus shown in FIG. 15, the computer program product includes a computer program stored on a non-transitory computer readable storage medium, the computer program including program instructions When the program instructions are executed by a computer, the computer can execute the transmission method of the above paging message of the present application.
  • the embodiment of the present application provides a computer program product, which is provided in the apparatus shown in FIG. 15, the computer program product includes a computer program stored on a non-transitory computer readable storage medium, the computer program includes program instructions, when When the program instructions are executed by a computer, the computer can execute the transmission method of the above paging message of the present application.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined.
  • 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 an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, 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 hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present application. Part of the steps.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

L'invention se rapporte au domaine technique des télécommunications. Dans ses modes de réalisation, l'invention concerne un procédé et un dispositif de transmission d'un message de radiorecherche aptes à exécuter une transmission répétée d'un message de radiorecherche dans un système de communications mobiles à bande de fréquences sans licence via la configuration d'une ressource temps-fréquence du message de radiorecherche. Le procédé comprend les étapes suivantes : d'après une capacité d'amélioration de couverture de cellule, une station de base détermine une ressource temps-fréquence via laquelle transporter un canal de radiorecherche et un signal de commande pour programmer le canal de radiorecherche, la ressource temps-fréquence comprenant le nombre de sous-trames occupées par une transmission répétée du canal de radiorecherche et du signal de commande pour programmer le canal de radiorecherche, et une ou plusieurs relations de position dans le domaine temporel entre les transmissions répétées du canal de radiorecherche et du signal de commande pour programmer le canal de radiorecherche ; d'après la ressource temps-fréquence déterminée, la station de base envoie à un terminal le canal de radiorecherche et le signal de commande pour programmer le canal de radiorecherche. Les solutions techniques fournies par les modes de réalisation de la présente invention s'appliquent à la transmission d'un message de radiorecherche entre un terminal et une station de base.
PCT/CN2018/089586 2017-06-07 2018-06-01 Procédé et dispositif de transmission de message de radiorecherche WO2018223901A1 (fr)

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