WO2018201482A1 - Procédé et appareil d'instruction de radiomessagerie - Google Patents

Procédé et appareil d'instruction de radiomessagerie Download PDF

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Publication number
WO2018201482A1
WO2018201482A1 PCT/CN2017/083331 CN2017083331W WO2018201482A1 WO 2018201482 A1 WO2018201482 A1 WO 2018201482A1 CN 2017083331 W CN2017083331 W CN 2017083331W WO 2018201482 A1 WO2018201482 A1 WO 2018201482A1
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WIPO (PCT)
Prior art keywords
terminal device
indication information
subframe
identifier
access network
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PCT/CN2017/083331
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English (en)
Chinese (zh)
Inventor
南方
余政
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201780089228.4A priority Critical patent/CN110463283B/zh
Priority to PCT/CN2017/083331 priority patent/WO2018201482A1/fr
Publication of WO2018201482A1 publication Critical patent/WO2018201482A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to communication technologies, and in particular, to a paging indication method and apparatus.
  • Machine Type Communication refers to the acquisition of information about the physical world by deploying various devices with certain sensing, computing, execution, and communication capabilities, and realizes information transmission, coordination, and processing through the network.
  • MTC Machine Type Communication
  • LTE Long Term Evolution
  • coverage is one of the key issues that need to be addressed.
  • An important application of MTC is smart meters, such as metering information that can be used to automatically read water, electricity, gas, etc., and report the metering information to the data center.
  • smart meters are usually installed in the basement of the house or isolated by a metal casing.
  • the path loss between the User Equipment (UE) and the base station is higher than that between the conventional terminal and the base station.
  • the path loss is more serious.
  • operators do not want to add new sites and relay equipment. Therefore, it is hoped that LTE will greatly increase the coverage of the system when supporting MTC. It is one of the effective means to improve the information transmission performance and increase the coverage of the system by repeatedly transmitting the same information at the transmitting end and combining the repeatedly transmitted information at the receiving end.
  • UEs performing MTC require minimal complexity to reduce costs. Also, considering that UEs performing MTCs typically have battery-powered requirements, they need to have lower power consumption.
  • the system message change indication and the earthquake tsunami warning system (Earthquake and Tsunami Warning) are required.
  • the System, ETWS) indication, the Commercial Mobile Alert Service (CMAS) indication or the Extended Access Barring (EAB) parameter change indication the network needs to page the corresponding UE.
  • the Downlink Control Information (DCI) sent by the base station to the UE directly includes these indications.
  • the DCI When the service of the UE arrives, the DCI includes scheduling information of a Physical Downlink Shared Channel (PDSCH), and the PDSCH is used to carry a paging message of the UE.
  • the scheduling information of the PDSCH includes resource block allocation, modulation and coding mode information, and the like.
  • the DCI is carried by a physical downlink control channel (MPDCCH) of a device type communication.
  • MPDCCH physical downlink control channel
  • the Cyclic Redundancy Check (CRC) of the DCI is scrambled by using a Paging-Radio Network Temporary Identifier (P-RNTI).
  • P-RNTI Paging-Radio Network Temporary Identifier
  • the DCI scrambled by the P-RNTI may be transmitted in one subframe or repeatedly in multiple subframes.
  • the subframe that is started to be transmitted is determined according to a paging opportunity (Paging Occasion, PO) and a paging frame (PF).
  • a PF is a radio frame containing one or more POs.
  • a PO is a subframe, which is the starting subframe in which the base station transmits the DCI.
  • DRX discontinuous reception
  • the maximum supported transmission and reception bandwidth of the MTC UE is 1.4 MHz, including a narrow band.
  • a narrowband contains the frequency bandwidth of six consecutive Physical Resource Blocks (PRBs) in frequency.
  • PRBs Physical Resource Blocks
  • a number of narrow bands are divided in the frequency range of the system bandwidth for transmission of MTC information.
  • Narrowbands within the system bandwidth are numbered in ascending or descending order of frequency, which is a narrowband index.
  • Set the downlink system bandwidth Narrowband, narrowband index range is The DCI carried by the MPDCCH with P-RNTI scrambling occupies 1 narrow band in frequency, that is, 6 PRBs.
  • the paging message carried by the PDSCH may also be transmitted in one subframe or repeatedly in multiple subframes.
  • the paging message includes an International Mobile Subscriber Identity (IMSI) or a S-Temporary Mobile Subscriber Identity (S-TMSI) of the UE to be paged.
  • IMSI International Mobile Subscriber Identity
  • S-TMSI S-Temporary Mobile Subscriber Identity
  • the UE uses the PO as the starting subframe, and listens to the MPDCCH with a certain number of repetitions on the determined narrowband, and uses the P-RNTI to descramble the CRC of the DCI carried by the MPDCCH. If the CRC of the DCI is correct, there is a P-RNTI scrambled DCI on the PF, PO, and narrowband determined time-frequency resources; otherwise, without the P-RNTI scrambled DCI, the UE starts from the next PO subframe. Continue to listen to the MPDCCH on the calculated narrowband.
  • the UE determines whether the DCI contains an indication of a system message change, an ETWS, a CMAS, or an EAB parameter change, or a PDSCH scheduling information. If the DCI includes the scheduling information of the PDSCH, the UE further receives and decodes the paging message carried by the PDSCH, and determines whether it is the UE's own paging message according to whether the IMSI or the S-TMSI included in the paging message is the same as itself.
  • the UE listens to the MPDCCH on the narrowband with one PO as the starting subframe.
  • the base station does not send the P-RNTI scrambled DCI starting from the PO subframe, and the DCI power of the UE decoding the MPDCCH is wasted.
  • the UE detects the DCI with the P-RNTI scrambling, if the DCI includes the scheduling information of the PDSCH, the UE needs to determine whether the paging message is the UE's own by receiving and decoding the paging message carried by the PDSCH.
  • both DCI and paging messages are repeatedly transmitted in multiple subframes.
  • the UE needs to combine multiple DCIs or paging messages that are repeated in multiple subframes to decode, which requires more power consumption, and the problem of waste of UE power is more serious.
  • the waste of UE power is very disadvantageous for battery powered UEs. Therefore, listening to the MPDCCH by using the above method causes the power consumption of the UE to be large.
  • the present application provides a paging indication method and apparatus to reduce power consumption of a terminal device.
  • the application provides a paging indication method, which is applied to a communication system, and includes: an access network device sends indication information to a terminal device.
  • the indication information is used to indicate that the terminal device detects downlink control information or PDSCH bearer information in one DRX cycle; or the indication information is used to indicate that the terminal device does not detect downlink control information or PDSCH bearer information in one DRX cycle.
  • the terminal device After receiving the indication information, the terminal device detects or does not detect downlink control information or PDSCH bearer information in one DRX cycle according to the indication information.
  • the terminal device When the indication information is used to indicate the detection, the terminal device does not perform detection in a DRX cycle before receiving the indication information, and starts to detect only after receiving the indication information, and the MPDCCH is always monitored compared to the terminal device.
  • the implementation manner saves power consumption of the terminal device; when the indication information is used to indicate no detection, if the terminal device detects the indication information within one DRX cycle, the terminal device does not detect the downlink control information or
  • the information carried by the PDSCH saves the power consumption of the terminal device compared to the implementation manner in which the terminal device always monitors the MPDCCH. Therefore, the paging indication method provided by the present application can save power consumption of the terminal device.
  • the sending the indication information to the terminal device includes: determining, by the access network device, the time domain resource that sends the indication information according to the identifier of the terminal device and the parameter of the DRX cycle.
  • the identifier of the terminal device is determined according to the IMSI or S-TMSI of the terminal device.
  • the access network device sends indication information on the time domain resource.
  • the information does not conflict with other signals, which improves the success rate of the indication information transmission.
  • the access network device determines the time domain resource for transmitting the indication information according to the identifier of the terminal device and the parameter of the DRX cycle, including: the communication system is an FDD communication system, and the access network device is according to the terminal.
  • the identifier of the device and the parameter of the DRX cycle determine that the subframe number of the start subframe of the transmission indication information is one of 0, 4, 5, 9.
  • the communication system is a TDD communication system
  • the access network device determines one of the subframe numbers of the start subframe of the transmission indication information to be 0, 1, 5, 6 according to the identifier of the terminal device and the parameters of the DRX cycle.
  • T is the period of the DRX of the terminal device
  • N min(T, nB), and nB is 4T, 2T, T, T/2, T/4, T/8, T/16 or T/32
  • nB is The access network device is pre-determined; min means taking the minimum value operation; UE_ID is the identifier of the terminal device.
  • Ns max(1, nB/T)
  • max represents the maximum value operation
  • floor represents the round-down operation.
  • the method further includes: in the subframe in which the access network device determines to send the indication information, the OFDM symbol that does not send the CRS is the OFDM symbol that sends the indication information; or the access network device determines In the subframe in which the indication information is transmitted, the OFDM symbol of the CRS is not transmitted and the OFDM symbol of the PSS and the SSS is not transmitted as the OFDM symbol for transmitting the indication information; or the subframe in which the access network device determines to transmit the indication information is transmitting the CRS
  • the indication information is repeatedly transmitted twice on three OFDM symbols.
  • the sending the indication information to the terminal device includes: determining, by the access network device, the frequency domain resource that sends the indication information according to the cell identifier and the identifier of the terminal device.
  • the identifier of the terminal device is determined according to the IMSI or S-TMSI of the terminal device.
  • the access network device sends indication information on the frequency domain resource.
  • the access network device determines, according to the cell identifier and the identifier of the terminal device, the frequency domain resource that sends the indication information, where the access network device determines the narrowband and the according to the formula for sending the indication information.
  • the determined narrow band s m is the same.
  • the access network device determines the narrowband and the according to the formula for transmitting the indication information in the subframe i S j same narrowband determined.
  • s j is a narrow band of number j in ⁇ s j ⁇ ;
  • i ⁇ 0
  • TDD communication system Indicates the number of subframes in which the narrowband occupied by the indication information remains unchanged.
  • i 0 represents the absolute subframe number of the first subframe in which the information is sent.
  • the indication information is one of the following sequences: a CAZAC sequence; a ZC sequence; a Gold sequence; an M sequence; a sequence in a sequence set for SSS; a sequence for NSSS The sequence in the collection.
  • the method further comprises: the access network device determining the sequence of the indication information according to the cell identity and/or the identity of the terminal device.
  • the access network device determines a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the cell identity.
  • the access network device determines a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the identity of the terminal device.
  • the access network device determines a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the cell identity and the identity of the terminal device.
  • the method further includes: determining, by the access network device, a subframe set of a start subframe for transmitting downlink control information or information carried by the PDSCH; and determining, by the access network device, that the indication information is sent The subframe in the first subframe set after the last subframe plus a preset number of subframes is sent downlink control information or The starting subframe of the information carried by the PDSCH.
  • the preset number is 0 or 1.
  • the communication system is an FDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 1, 5, 6.
  • the present application provides a paging indication method, which is applied to a communication system, and includes: the terminal device receives indication information sent by an access network device.
  • the indication information is used to indicate that the terminal device detects downlink control information or information carried by the PDSCH in one DRX cycle.
  • the indication information is used to indicate that the terminal device does not detect the downlink control information or the information carried by the PDSCH in one DRX cycle.
  • the terminal device detects or does not detect downlink control information or information carried by the PDSCH in one DRX cycle according to the indication information.
  • the terminal device receives the indication information sent by the access network device, where the terminal device determines, according to the identifier of the terminal device and the parameter of the DRX cycle, the time domain resource that receives the indication information.
  • the identifier of the terminal device is determined according to the IMSI or S-TMSI of the terminal device.
  • the terminal device receives the indication information sent by the access network device on the time domain resource.
  • the terminal device determines the time domain resource for receiving the indication information according to the identifier of the terminal device and the parameter of the DRX cycle, including: the communication system is an FDD communication system, and the terminal device is configured according to the identifier of the terminal device and The parameter of the DRX cycle determines one of the subframe numbers of the start subframe in which the indication information is received is 0, 4, 5, 9.
  • the communication system is a TDD communication system, and the terminal device determines one of the subframe numbers of the start subframe of the reception indication information to be 0, 1, 5, 6 according to the identifier of the terminal device and the parameter of the DRX cycle.
  • the terminal device determines, according to the identifier of the terminal device and the parameter of the DRX cycle, one of the subframe numbers of the start subframe in which the indication information is received is 0, 4, 5, 9, or
  • the terminal device determines, according to the identifier of the terminal device and the parameter of the DRX cycle, one of the subframe numbers of the start subframe of the indication information to be 0, 1, 5, 6, including: the terminal device determines the starter of the indication information.
  • T is the period of the DRX of the terminal device
  • N min(T, nB)
  • nB is 4T, 2T, T, T/2, T/4, T/8, T/16 or T/32
  • nB is The access network device is pre-configured to the terminal device; min indicates the minimum value operation; and the UE_ID is the identifier of the terminal device.
  • the method further includes: in the subframe in which the terminal device determines to receive the indication information, the OFDM symbol that does not receive the CRS is the OFDM symbol that receives the indication information.
  • the terminal device determines that the OFDM symbol of the CRS is not received in the subframe in which the indication information is received, and the OFDM symbol that does not receive the PSS and the SSS is the OFDM symbol that receives the indication information.
  • the indication information that is repeatedly transmitted twice is received on the three OFDM symbols that receive the CRS.
  • the terminal device receives the indication information sent by the access network device, where the terminal device determines, according to the cell identifier and the identifier of the terminal device, the frequency domain resource that receives the indication information.
  • the identifier of the terminal device is determined according to the IMSI or S-TMSI of the terminal device.
  • the terminal device receives the indication information on the frequency domain resource.
  • the terminal device determines, according to the cell identifier and the identifier of the terminal device, the frequency domain resource that receives the indication information, where the terminal device determines the narrowband and the according to the formula for receiving the indication information.
  • the terminal device determines that the narrowband of the indication information is received in the subframe i and according to the formula The determined narrow band s j is the same.
  • s j is a narrow band of number j in ⁇ s j ⁇ ;
  • the communication system is a TDD communication system: Indicates the number of subframes in which the narrowband occupied by the indication information remains unchanged. Indicates the number of narrowbands used to indicate information hopping.
  • i 0 represents the absolute subframe number of the first subframe in which the indication information is received.
  • the indication information is one of the following sequences: a CAZAC sequence; a ZC sequence; a Gold sequence; an M sequence; a sequence in a sequence set for SSS; a sequence for NSSS The sequence in the collection.
  • the method further comprises: the terminal device determining the sequence of the indication information according to the cell identifier and/or the identifier of the terminal device.
  • the terminal device determines a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the cell identity.
  • the terminal device determines a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the identity of the terminal device.
  • the terminal device determines a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the cell identity and the identity of the terminal device.
  • the method further includes: the terminal device determines a subframe set of the start subframe that receives the downlink control information or the information of the PDSCH bearer; and the terminal device determines the last subframe that receives the indication information.
  • the subframe in the first subframe set after adding a preset number of subframes is to receive downlink control information or PDSCH The starting subframe of the loaded information.
  • the preset number is 0 or 1.
  • the communication system is an FDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 1, 5, 6.
  • the application provides an access network device, which is disposed in a communication system, and includes: a sending module, configured to send indication information to the terminal device.
  • the indication information is used to indicate that the terminal device detects downlink control information or information carried by the PDSCH in one DRX cycle.
  • the indication information is used to indicate that the terminal device does not detect the downlink control information or the information carried by the PDSCH in one DRX cycle.
  • the sending module specifically includes: a first determining submodule, configured to determine, according to the identifier of the terminal device and the parameter of the DRX cycle, a time domain resource that sends the indication information.
  • the identifier of the terminal device is determined according to the IMSI or S-TMSI of the terminal device.
  • the first sending submodule is configured to send the indication information on the time domain resource.
  • the first determining submodule is configured to: the communication system is an FDD communication system, and determine, according to the identifier of the terminal device and the parameter of the DRX cycle, a subframe number of the starting subframe in which the indication information is sent. It is one of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the start subframe in which the indication information is transmitted is determined to be one of 0, 1, 5, 6 according to the identifier of the terminal device and the parameter of the DRX cycle.
  • T is the period of the DRX of the terminal device
  • N min(T, nB), and nB is 4T, 2T, T, T/2, T/4, T/8, T/16 or T/32
  • nB is The access network device is pre-determined; min means taking the minimum value operation; UE_ID is the identifier of the terminal device.
  • the access network device further includes: a first determining module, configured to determine, in the subframe in which the indication information is sent, the OFDM symbol that does not send the CRS is the OFDM symbol that sends the indication information.
  • the second determining module is configured to determine, in the subframe that sends the indication information, that the OFDM symbol of the CRS is not sent, and the OFDM symbol of the PSS and the SSS is not sent, and the OFDM symbol that sends the indication information.
  • the third determining module in the subframe for transmitting the indication information, repeatedly transmits the indication information twice on the 3 OFDM symbols that send the CRS.
  • the sending module specifically includes: a second determining submodule, configured to determine, according to the cell identifier and the identifier of the terminal device, the frequency domain resource that sends the indication information.
  • the identifier of the terminal device is determined according to the IMSI or S-TMSI of the terminal device.
  • the second sending submodule is configured to send the indication information on the frequency domain resource.
  • the second determining sub-module is specifically configured to: determine a narrowband and a formula according to the formula for transmitting the indication information
  • the determined narrow band s m is the same.
  • ⁇ s j ⁇ is a narrow band set, and the number of narrow bands included therein is When the system bandwidth is >3MHz, ⁇ s j ⁇ does not contain a narrow band that overlaps with 72 subcarriers in the middle of the system bandwidth, ⁇ s j ⁇ contains other narrow bands within the system bandwidth; when the system bandwidth is less than or equal to 3MHz, ⁇ s j ⁇ contains All narrowbands within the system bandwidth;
  • the number of the narrow band contained in ⁇ s j ⁇ ; s m is the narrow band numbered m in ⁇ s j ⁇ ; Indicates the cell identity, Indicates the number of narrow bands, Predetermined for the access network device;
  • the determined narrow band s j is the same.
  • s j is a narrow band of number j in ⁇ s j ⁇ ;
  • i ⁇ 0
  • TDD communication system Indicates the number of subframes in which the narrowband occupied by the indication information remains unchanged.
  • the indication information is one of the following sequences: a CAZAC sequence; a ZC sequence; a Gold sequence; an M sequence; a sequence in a sequence set for SSS; a sequence for NSSS The sequence in the collection.
  • the access network device further includes: a fourth determining module, configured to determine a sequence of the indication information according to the cell identifier and/or the identifier of the terminal device.
  • the fifth determining module is configured to determine, according to the cell identifier, a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS.
  • a sixth determining module configured to determine, according to the identifier of the terminal device, a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS.
  • the seventh determining module is configured to determine, according to the cell identifier and the identifier of the terminal device, a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS.
  • the access network device further includes: an eighth determining module, configured to determine a subframe set of a start subframe for transmitting downlink control information or information carried by the PDSCH; and an eighth determining module It is further configured to determine that the subframe in the first subframe set after the last subframe in which the indication information is sent plus the preset number of subframes is a start subframe that transmits downlink control information or information carried by the PDSCH.
  • the preset number is 0 or 1.
  • the communication system is an FDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 1, 5, 6.
  • the application provides a terminal device, which is disposed in a communication system, and includes: a receiving module, configured to receive indication information sent by the access network device.
  • the indication information is used to indicate that the terminal device detects within one DRX cycle.
  • the indication information is used to indicate that the terminal device does not detect the downlink control information or the information carried by the PDSCH in one DRX cycle.
  • a detecting module configured to detect or not detect downlink control information or information carried by the PDSCH in one DRX cycle according to the indication information.
  • the receiving module includes: a first determining submodule, configured to determine a time domain resource that receives the indication information according to the identifier of the terminal device and the parameter of the DRX cycle.
  • the identifier of the terminal device is determined according to the IMSI or S-TMSI of the terminal device.
  • the first receiving submodule is configured to receive the indication information sent by the access network device on the time domain resource.
  • the first determining submodule is configured to: the communication system is an FDD communication system, and determine, according to the identifier of the terminal device and the parameter of the DRX cycle, a subframe number of the starting subframe in which the indication information is received. It is one of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the start subframe in which the indication information is received is determined to be one of 0, 1, 5, 6 according to the identifier of the terminal device and the parameter of the DRX cycle.
  • T is the period of the DRX of the terminal device
  • N min(T, nB), and nB is 4T, 2T, T, T/2, T/4, T/8, T/16 or T/32
  • Ns max(1, nB/T)
  • max represents the maximum value operation, and floor represents the round-down operation.
  • the terminal device further includes: a first determining module, configured to determine, in the subframe that receives the indication information, that the OFDM symbol that does not receive the CRS is an OFDM symbol that receives the indication information.
  • the second determining module is configured to determine, in the subframe that receives the indication information, that the OFDM symbol of the CRS is not received, and the OFDM symbol that does not receive the PSS and the SSS is the OFDM symbol that receives the indication information.
  • the third determining module is configured to determine, in the subframe that receives the indication information, the indication information that is repeatedly sent twice on the three OFDM symbols that receive the CRS.
  • the receiving module specifically includes: a second determining submodule, configured to determine, according to the cell identifier and the identifier of the terminal device, the frequency domain resource that receives the indication information.
  • the identifier of the terminal device is determined according to the IMSI or S-TMSI of the terminal device.
  • the second receiving submodule is configured to receive the indication information on the frequency domain resource.
  • the second determining sub-module is specifically configured to: determine a narrowband of the indication information and according to the formula The determined narrow band s m is the same.
  • ⁇ s j ⁇ is a narrow band set, and the number of narrow bands included therein is When the system bandwidth is >3MHz, ⁇ s j ⁇ does not contain a narrow band that overlaps with 72 subcarriers in the middle of the system bandwidth, ⁇ s j ⁇ contains other narrow bands within the system bandwidth; when the system bandwidth is less than or equal to 3MHz, ⁇ s j ⁇ contains All narrowbands within the system bandwidth;
  • the determined narrow band s j is the same.
  • s j is a narrow band of number j in ⁇ s j ⁇ ;
  • i ⁇ 0
  • TDD communication system Indicates the number of subframes in which the narrowband occupied by the indication information remains unchanged. Indicates the number of narrowbands used to indicate information hopping.
  • i 0 represents the absolute subframe number of the first subframe in which the indication information is received.
  • the indication information is one of the following sequences: a CAZAC sequence; a ZC sequence; a Gold sequence; an M sequence; a sequence in a sequence set for SSS; a sequence for NSSS The sequence in the collection.
  • the terminal device further includes: a fourth determining module, configured to determine a sequence of the indication information according to the cell identifier and/or the identifier of the terminal device.
  • the fifth determining module is configured to determine, according to the cell identifier, a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS.
  • a sixth determining module configured to determine, according to the identifier of the terminal device, a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS.
  • the seventh determining module is configured to determine, according to the cell identifier and the identifier of the terminal device, a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS.
  • the terminal device further includes: an eighth determining module, configured to determine a subframe set of the start subframe that receives the downlink control information or the information carried by the PDSCH.
  • the eighth determining module is further configured to determine that the subframe in the first subframe set after receiving the last subframe of the indication information plus a preset number of subframes is a starter of receiving downlink control information or information carried by the PDSCH frame.
  • the preset number is 0 or 1.
  • the communication system is an FDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 1, 5, 6.
  • the application provides an access network device, which is disposed in a communication system, and includes: a transceiver; a memory, configured to store an instruction; and a processor connected to the memory and the transceiver, respectively, for executing an instruction to When the instruction is executed, the following steps are performed: sending indication information to the terminal device.
  • the indication information is used to indicate that the terminal device detects downlink control information or information carried by the PDSCH in one DRX cycle.
  • the indication information is used to indicate that the terminal device does not detect the downlink control information or the information carried by the PDSCH in one DRX cycle.
  • the application provides a terminal device, which is disposed in a communication system, including: a transceiver; a memory for storing an instruction; and a processor connected to the memory and the transceiver, respectively, for executing an instruction to execute the instruction
  • the following steps are performed: receiving indication information sent by the access network device.
  • the indication information is used to indicate that the terminal device is in one
  • the downlink control information or the PDSCH bearer information is detected in the DRX period; or the indication information is used to indicate that the terminal device does not detect the downlink control information or the PDSCH bearer information in one DRX cycle; and detects or does not detect in a DRX cycle according to the indication information.
  • Downlink control information or information carried by the PDSCH is disposed in a communication system, including: a transceiver; a memory for storing an instruction; and a processor connected to the memory and the transceiver, respectively, for executing an instruction to execute the instruction
  • the following steps are performed: receiving indication information sent
  • the application provides a communication system, including any of the access network devices provided by the third aspect, and any terminal device provided by the fourth aspect.
  • the present application provides a computer readable storage medium, comprising computer executed instructions for causing an access network device to perform the method of the first aspect or the method of any one of the possible aspects of the first aspect .
  • the present application provides a computer readable storage medium comprising computer executed instructions for causing a terminal device to perform the method of the second aspect or the method of any of the possible aspects of the second aspect.
  • the application further provides a program product, the program product comprising an execution instruction, the execution instruction being stored in a computer readable storage medium.
  • At least one processor of the access network device can read the computer-executable instructions from a readable storage medium, the at least one processor executing the execution instructions to cause the access network device to implement the first aspect or any one of the possible implementations of the first aspect The method in the way.
  • the application further provides a program product, the program product comprising an execution instruction, the execution instruction being stored in a computer readable storage medium.
  • At least one processor of the terminal device can read the computer-executable instructions from a readable storage medium, the at least one processor executing the execution instructions to cause the terminal device to implement the method of any one of the possible implementations of the second aspect or the second aspect .
  • FIG. 1 is a schematic diagram of an application scenario of a paging indication method provided by the present application
  • Embodiment 2 is a signaling interaction diagram of Embodiment 1 of a paging indication method provided by the present application;
  • FIG. 3 is a signaling interaction diagram of Embodiment 2 of a paging indication method provided by the present application
  • 4A is a schematic diagram of an implementation manner of determining a start subframe of transmitting downlink control information or PDSCH bearer information in the embodiment shown in FIG. 3;
  • 4B is a schematic diagram of another implementation manner of determining a start subframe of transmitting downlink control information or PDSCH bearer information in the embodiment shown in FIG. 3;
  • FIG. 5A is a schematic diagram of an implementation manner of a symbol occupied by a 4-antenna port indicating information transmission in the embodiment shown in FIG. 3;
  • FIG. 5A is a schematic diagram of an implementation manner of a symbol occupied by a 4-antenna port indicating information transmission in the embodiment shown in FIG. 3;
  • FIG. 5B is a schematic diagram of another implementation manner of the symbol occupied by the 4-antenna port indication information transmission in the embodiment shown in FIG. 3;
  • FIG. 5B is a schematic diagram of another implementation manner of the symbol occupied by the 4-antenna port indication information transmission in the embodiment shown in FIG. 3;
  • FIG. 6 is a signaling interaction diagram of Embodiment 3 of a paging indication method provided by the present application.
  • FIG. 7 is a schematic structural diagram of Embodiment 1 of an access network device provided by the present application.
  • FIG. 8 is a schematic structural diagram of Embodiment 2 of an access network device according to the present application.
  • FIG. 9 is a schematic structural diagram of Embodiment 3 of an access network device provided by the present application.
  • FIG. 10 is a schematic structural diagram of Embodiment 4 of an access network device according to the present application.
  • FIG. 11 is a schematic structural diagram of Embodiment 1 of a terminal device according to the present application.
  • FIG. 12 is a schematic structural diagram of Embodiment 2 of a terminal device according to the present application.
  • FIG. 13 is a schematic structural diagram of Embodiment 3 of a terminal device provided by the present application.
  • FIG. 14 is a schematic structural diagram of Embodiment 4 of a terminal device according to the present application.
  • FIG. 15 is a schematic structural diagram of an embodiment of a communication system provided by the present application.
  • the paging indication method provided by the present application is applied to a communication system composed of an access network device and a terminal device.
  • the paging involved in the present application may be a paging message carried by the PDSCH, or may be a message such as a system message change directly indicated by the DCI carried by the MPDCCH, an ETWS, a CMAS, or an EAB parameter change.
  • FIG. 1 is a schematic diagram of an application scenario of a paging indication method provided by the present application. As shown in FIG. 1, the access network device 11, the terminal device 12, the terminal device 13, the terminal device 14, the terminal device 15, the terminal device 16, and the terminal device 17 constitute a communication system.
  • the access network device may send a P-RNTI scrambled DCI or a paging message carried by the PDSCH to the terminal device 12-terminal device 17.
  • the terminal device 12 - the terminal device 17 needs to receive the P-RNTI scrambled DCI or the paging message carried by the PDSCH transmitted by the access network device.
  • the terminal device 15-terminal device 17 can also constitute a communication system.
  • the terminal device 16 may transmit a P-RNTI scrambled DCI or a paging message carried by the PDSCH to the terminal device 15 and the terminal device 17, and the terminal device 15 and the terminal device 17 need to receive the P- sent by the terminal device 16.
  • the paging message carried by the RNTI scrambled DCI or PDSCH On the terminal device side, the terminal device 12-terminal device 17 listens to the MPDCCH on the narrowband with the calculated PO as the starting subframe, but if the access network device does not send the P-RNTI with the PO as the starting subframe The DCI of the disturbance will cause power waste of the terminal equipment. Further, even if the PCI of the P-RNTI scrambling is detected, the terminal device needs to further receive and decode the paging message carried by the PDSCH, and determine whether the paging message is sent to itself. If the paging message is not sent to the terminal device, the power of the terminal device to decode the DCI carried by the MPDCCH and the paging message carried by the PDSCH is wasted, which causes the power of the terminal device to be more seriously wasted.
  • the present application provides a paging indication method, which aims to solve the problem of serious power waste of the terminal device.
  • the paging indication method provided by the present application sends the indication information to the terminal device by using the access network device, where the indication information is used to indicate that the terminal device detects downlink control information or PDSCH bearer information in one DRX cycle, or the indication information is used for Instructing the terminal device not to detect the downlink control information or the PDSCH bearer information in one DRX cycle, the terminal device receives the indication information sent by the access network device, and the terminal device detects or does not detect the downlink control information or the PDSCH in one DRX cycle according to the indication information.
  • the carried information enables the terminal device to detect or not detect downlink control information or PDSCH bearer information in a DRX cycle according to the indication information after receiving the indication information.
  • the indication information is used to indicate the detection, the terminal device does not perform detection in a DRX cycle before receiving the indication information, and starts to detect only after receiving the indication information, compared to the implementation of the MPDCCH being monitored by the terminal device.
  • the mode saves the power consumption of the terminal device.
  • the indication information is used to indicate that the device does not detect, if the terminal device detects the indication information in a DRX cycle, the terminal device does not detect the downlink control information or the PDSCH bearer in the DRX cycle. Compared with the implementation manner in which the terminal device always monitors the MPDCCH, the information of the terminal device is saved. Therefore, the paging indication method provided by the present application can save power consumption of the terminal device.
  • FIG. 2 is a signaling interaction diagram of Embodiment 1 of a paging indication method provided by the present application. As shown in FIG. 2, the present application provides The paging indication method includes the following steps:
  • S201 The access network device sends the indication information to the terminal device.
  • the indication information is used to indicate that the terminal device detects downlink control information or information carried by the PDSCH in one DRX cycle. Alternatively, the indication information is used to indicate that the terminal device does not detect the downlink control information or the information carried by the PDSCH in one DRX cycle.
  • the communication system to which the present application is applied may be a Global System for Mobile Communications (GSM), a General Packet Radio Service (GPRS) system, or a Code Division Multiple Access (CDMA).
  • GSM Global System for Mobile Communications
  • GPRS General Packet Radio Service
  • CDMA Code Division Multiple Access
  • CDMA2000 system
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • WiMAX World Interoperability for Microwave Access
  • the access network device in this application may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station in LTE (The evolutional Node B, eNB or eNodeB), or the relay station or the access point, or the base station in the 5th generation (5G) system, is not limited herein.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE evolved base station in LTE
  • the evolutional Node B, eNB or eNodeB), or the relay station or the access point, or the base station in the 5th generation (5G) system is not limited herein.
  • the indication information can be implemented in the following two ways:
  • the indication information can be a wake up signal.
  • the access network device sends the wake-up signal to the terminal device when the data of the terminal device arrives, when the paging message needs to be sent to the terminal device, or when the system message change, the ETWS, the CMAS or the EAB parameter change indication needs to be performed.
  • the wake-up signal is used to instruct the terminal device to detect downlink control information or information carried by the PDSCH in one DRX cycle.
  • the indication information can be a go to sleep signal.
  • the access network device sends the sleep signal to the terminal device when the data of the terminal device does not need to be sent to the terminal device, or when the system message change, the ETWS, the CMAS, or the EAB parameter change indication is not required.
  • the sleep signal is used to indicate that the terminal device does not detect downlink control information or PDSCH bearer information in one DRX cycle.
  • S202 The terminal device receives the indication information sent by the access network device.
  • the terminal device in this application may be a wireless terminal or a wired terminal.
  • the wireless terminal can be a device that provides voice and/or other service data connectivity to the user, a handheld device with wireless connectivity, or other processing device that is connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • RAN Radio Access Network
  • it may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with a wireless access network.
  • the wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, and a remote terminal.
  • the access terminal, the user terminal (User Terminal), the user agent (User Agent), and the user device (User Device or User Equipment) are not limited herein.
  • the terminal device in the present application may be a terminal device that performs MTC service, for example, a smart meter, a smart water meter, or the like.
  • the terminal device detects or does not detect downlink control information or information carried by the PDSCH in one DRX cycle according to the indication information.
  • the access network device may pre-approve the role of the indication information with the terminal device, for example, the appointment indication information is a wake-up signal, and is used to indicate that the terminal device detects downlink control information or PDSCH bearer information in one DRX cycle. Then, after receiving the indication information, the terminal device detects downlink control information or information carried by the PDSCH according to a predetermined agreement.
  • the appointment indication information is a wake-up signal
  • the terminal device detects the wake-up signal every DRX cycle. If the terminal device detects the wake-up signal in a certain DRX cycle, the terminal device continues to detect the downlink control information or the information carried by the PDSCH in the DRX cycle.
  • the terminal device does not detect a wake-up signal during a certain DRX cycle, it continues to sleep.
  • the appointment indication information is a sleep signal
  • the terminal device detects a sleep signal every DRX cycle. If the terminal device does not detect the sleep signal in a certain DRX cycle, the terminal device continues to detect the downlink control information or the information carried by the PDSCH in the DRX cycle. If the terminal device detects the sleep signal in a certain DRX cycle, the terminal device does not detect the downlink control information or the information carried by the PDSCH in the DRX cycle, and continues to maintain the sleep state.
  • the access network device indicates the role of the indication information by using a 1-bit status indication bit in the indication information.
  • the mapping relationship between the value of the status indicator bit and the role of the indication information may be agreed in advance by the access network device and the terminal device. For example, when the access network device and the terminal device agreement status indication bit are 1, it indicates that the indication information is a wake-up signal, and when the access network device and the terminal device agree that the status indication bit is 0, the indication information is a sleep signal.
  • the terminal device After receiving the indication information, the terminal device determines the value of the status indication bit, and determines whether the indication information is a wake-up signal or a sleep signal according to a mapping relationship between the value of the status indication bit and the action of the indication information, and then, according to the indication, The role of the information determines whether the downlink control information or the PDSCH bearer information is detected or not detected.
  • the terminal device detects the indication information in each DRX cycle. After the indication information is detected within a certain DRX cycle, it is determined whether the indication information is a wake-up signal or a sleep signal.
  • the terminal device When determining that the indication information is a wake-up signal, the terminal device detects downlink control information or PDSCH bearer information in the DRX cycle; when determining that the indication information is a sleep signal, the terminal device does not detect downlink control information or PDSCH bearer information in the DRX cycle. .
  • the downlink control information is a DCI scrambled by the P-RNTI, which is carried by the MPDCCH.
  • the access network device may send the DCI scrambled by the P-RNTI carried by the MPDCCH after transmitting the indication information, or send the paging message carried by the PDSCH.
  • the indication information is used to indicate that the terminal device detects or does not detect downlink control information in one DRX cycle.
  • the downlink control information includes scheduling information of the PDSCH.
  • the indication information is used to indicate that the terminal device detects or does not detect information of the PDSCH bearer in one DRX cycle. At this time, the PDSCH does not need to be scheduled by MPDCCH.
  • the PDSCH is used to carry paging messages.
  • the PDSCH occupies a narrow band. The manner in which the frequency domain resources occupied by the PDSCH are determined is the same as the manner in which the indication information occupies the frequency domain resources.
  • the paging message is in a fixed modulation and coding scheme.
  • the paging message adopts a fixed transport block size, and the modulation mode is Quadrature Phase Shift Keying (QPSK).
  • QPSK Quadrature Phase Shift Keying
  • the paging message includes a first paging message and a second paging message.
  • the first paging message uses a fixed transport block size.
  • the first paging message includes indication information of a transport block size of the second paging message.
  • the modulation mode of the first paging message and the second paging message is QPSK.
  • the first paging message and the second paging message are carried by the first PDSCH and the second PDSCH, respectively.
  • the paging message includes a first paging message and a second paging message.
  • the first paging message and the second paging message are carried by the first PDSCH and the second PDSCH, respectively.
  • the first paging message uses a fixed modulation and coding scheme.
  • the first paging message includes indication information of a modulation and coding manner of the second paging message.
  • the paging indication method provided by the present application sends the indication information to the terminal device by using the access network device, where the indication information is used to indicate that the terminal device detects downlink control information or PDSCH bearer information in one DRX cycle, or the indication information is used for Instructing the terminal device not to detect the downlink control information or the PDSCH bearer information in one DRX cycle, the terminal device receives the indication information sent by the access network device, and the terminal device detects or does not detect the downlink control information or the PDSCH in one DRX cycle according to the indication information.
  • the carried information enables the terminal device to detect or not detect downlink control information or PDSCH bearer information in a DRX cycle according to the indication information after receiving the indication information.
  • the terminal device When the indication information is used to indicate the detection, the terminal device does not perform detection in a DRX cycle before receiving the indication information, and starts to detect only after receiving the indication information, compared to the implementation of the MPDCCH being monitored by the terminal device.
  • the mode saves the power consumption of the terminal device.
  • the indication information is used to indicate that the device does not detect, if the terminal device detects the indication information in a DRX cycle, the terminal device does not detect the downlink control information or the PDSCH bearer in the DRX cycle. Compared with the implementation manner in which the terminal device always monitors the MPDCCH, the information of the terminal device is saved. Therefore, the paging indication method provided by the present application can save power consumption of the terminal device.
  • FIG. 3 is a signaling interaction diagram of Embodiment 2 of a paging indication method provided by the present application. Based on the embodiment shown in FIG. 2, the present application provides a detailed description of how the access network device sends indication information in the time domain. As shown in FIG. 3, the paging indication method provided by the application includes:
  • the access network device determines, according to the identifier of the terminal device and the parameter of the DRX cycle, the time domain resource that sends the indication information.
  • the identifier of the terminal device is determined according to the IMSI or S-TMSI of the terminal device.
  • the access network device sends the indication information on a specific time domain resource.
  • the access network device may repeatedly send the indication information in one subframe or multiple subframes.
  • the base station may notify the terminal device by using Radio Resource Control (RRC) signaling to indicate the number of subframes M or the number of repetitions M occupied by the information.
  • RRC Radio Resource Control
  • the RRC signaling may be RRC common signaling.
  • the starting subframe in which the access network device sends the indication information may be different.
  • the access network device may determine, according to the identifier of the terminal device and the parameter of the DRX cycle, that the subframe number of the start subframe in which the indication information is sent is 0, One of 4, 5, and 9.
  • the communication system is a Time Division Duplexing (TDD) communication system, and the access network device determines, according to the identifier of the terminal device and the parameter of the DRX cycle, that the subframe number of the start subframe in which the indication information is sent is 0, 1, One of 5, 6.
  • TDD Time Division Duplexing
  • the following describes in detail how the access network device determines the starting subframe for transmitting the indication information according to the identifier of the terminal device and the parameters of the DRX cycle.
  • the access network device first determines the system frame number (SFN) of the radio frame in which the start subframe of the indication information is transmitted.
  • SFN system frame number
  • the indication information is a wake-up signal
  • the starting subframe for sending the wake-up signal is called Wake Up Occasion (WUO)
  • the radio frame where the starting subframe is located is called Wake Up Frame (WUF)
  • the information is a sleep signal
  • the starting subframe for transmitting the sleep signal is called a To Sleep Occasion (TSO)
  • TSF To Sleep Frame
  • T is the period of the DRX of the terminal device
  • N min(T, nB), and nB is 4T, 2T, T, T/2, T/4, T/8, T/16 or T/32
  • nB is The access network device is pre-determined; min means taking the minimum value operation; UE_ID is the identifier of the terminal device.
  • div represents the division operation, that is, the business operation
  • mod represents the modulo operation, that is, the remainder operation.
  • the access network device needs to determine the start subframe of the transmission indication information: the access network device determines the subframe of the start subframe in which the indication information is sent.
  • Ns max(1, nB/T)
  • max represents the maximum value operation
  • floor represents the round-down operation.
  • Table 1 shows the mapping relationship between i_s and subframe number in an FDD communication system with a system bandwidth greater than 3 MHz.
  • Table 2 shows the mapping relationship between i_s and subframe number in an FDD communication system with a system bandwidth of 1.4 MHz and 3 MHz.
  • Table 3 shows the mapping relationship between i_s and subframe number in a TDD communication system with a system bandwidth greater than 3 MHz.
  • Table 4 shows the mapping relationship between i_s and subframe number in a TDD communication system with a system bandwidth of 1.4 MHz and 3 MHz.
  • Table 1 Mapping between i_s and subframe number in an FDD communication system with a system bandwidth greater than 3 MHz
  • Table 2 System bandwidth is the mapping relationship between i_s and subframe number in 1.4 MHz and 3 MHz FDD communication systems.
  • Table 3 Mapping between i_s and subframe number in a TDD communication system with a system bandwidth greater than 3 MHz
  • Table 4 System bandwidth is the mapping relationship between i_s and subframe number in TDD communication systems of 1.4 MHz and 3 MHz.
  • S302 The access network device sends the indication information on the time domain resource.
  • the indication information is sent on the start subframe.
  • the access network device also needs to determine a sequence of indication information.
  • the access network device determines the sequence of indication information There is no timing relationship between the steps and S301.
  • the indication information may employ a sequence having excellent autocorrelation properties and cross-correlation properties.
  • the indication information may be one of the following sequences: Constant Amplitude Zero Auto Correlation (CAZAC) sequence; ZC (Zadoff-Chu) sequence; Gold sequence; M sequence; for secondary synchronization signal (Secondary Synchronization Signal) Sequence in a sequence set of SSS); a sequence in a sequence set for a Narrowband Secondary Synchronization Signal (NSSS).
  • the access network device determines the sequence of indication information in the following ways:
  • the access network device determines the sequence of indication information according to the cell identity and/or the identity of the terminal device. Alternatively, the access network device determines a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the cell identity. Alternatively, the access network device determines a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the identity of the terminal device. Alternatively, the access network device determines a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the cell identity and the identity of the terminal device. The sequence of the indication information is determined according to the cell identifier and/or the identifier of the terminal device. The sequence of the indication information is determined according to the identifier of the terminal device, and is determined according to the identifier of the terminal device and the identifier of the terminal device.
  • the wake-up signal uses a sequence in a sequence set for SSS in the LTE system. That is, one or more of the following sequences d(0), ..., d(61).
  • the sequences d(0),...,d(61) are generated by two binary sequence interleaving cascades of length 31, and a binary length of 31 is obtained by cyclic shifting of a m-sequence of length 31.
  • the cascaded sequence is scrambled using a scrambling sequence associated with a primary synchronization signal (PSS).
  • PSS primary synchronization signal
  • the scrambling sequence c 0 (n) and c 1 (n) depend on the PSS, according to the following equation: Two different cyclic shifts are obtained, namely:
  • the sequence used by the indication information is the same as the SSS sequence on the subframe 0 of the current cell, or the sequence used by the wake-up signal is the same as the sequence of the SSS on the subframe 5 of the local cell. That is, it is determined according to the cell identity Cell_ID of the current cell. with That is, the sequence of indication information is determined from the sequence set for the SSS based on the cell identity.
  • the 168*3*2 sequences of the SSS of the LTE system are numbered. Can be different for the first Numbered, then different Numbering, and finally numbering the sequences on different subframes. You can also number the sequences on different sub-frames first, and then different Numbered, and finally different Numbered. There may be other ways of numbering, which are not limited in the embodiment of the present invention.
  • the sequence number ranges from 0 to 168*3*2-1.
  • the number of the sequence used to indicate the information is a function of the identity of the terminal device UE_ID or IMSI.
  • the sequence in which the indication information is used is a sequence numbered UE_ID mod X or IMSI mod X.
  • Multiple sequences can be sent to different terminal devices on the same resource.
  • the implementation is a sequence of determining indication information from a sequence set for the SSS according to the identity of the terminal device.
  • the indication information adopts an SSS sequence of subframe 0, or the indication information adopts an SSS sequence of subframe 5.
  • the implementation manner is a sequence of determining indication information from a sequence set for SSS according to the cell identifier and the identifier of the terminal device.
  • the access network device needs to determine an Orthogonal Frequency Division Multiplexing (OFDM) symbol for transmitting the indication information in the subframe in which the indication information is transmitted.
  • OFDM Orthogonal Frequency Division Multiplexing
  • FIG. 5A is a schematic diagram of an implementation manner of a symbol occupied by a 4-antenna port indicating information transmission in the embodiment shown in FIG. 3.
  • FIG. 5A shows a real-world cyclic prefix (Cyclic Prefix, CP) in which four antenna ports indicate the symbols occupied by information transmission.
  • FIG. 5B is a schematic diagram of another implementation manner of the symbol occupied by the 4-antenna port indication information transmission in the embodiment shown in FIG. 3.
  • FIG. 5B shows a schematic diagram of another implementation of the symbols occupied by the four antenna ports in the extended CP indicating information transmission.
  • the symbol occupied by the indication information in one subframe is the OFDM symbol for transmitting the CRS, and the OFDN symbol of the PSS, SSS is not transmitted.
  • the communication system is an FDD communication system: in subframe 5, the last two symbols indicating the information not in the first slot of the subframe and the symbol containing the CRS are transmitted; in the subframe 0, the indication information is not in the subframe. The last two symbols of the first time slot and the symbols containing the CRS are transmitted. In other subframes of the FDD communication system, the indication information is not transmitted in the symbol containing the CRS.
  • the communication system is a TDD communication system: in subframe 1, subframe 6, the third symbol indicating that the information is not in the subframe and the symbol containing the CRS are transmitted; in subframe 0, subframe 5, the indication information is not in the subframe The last symbol inside and the symbol containing the CRS are sent.
  • the indication information may also be sent on the symbol containing the CRS.
  • two identical sequences are transmitted using three CRS-containing symbols, that is, the indication information is repeatedly transmitted twice on the three OFDM symbols that transmit the CRS.
  • the three CRS-containing symbols may be the last three CRS-containing symbols within one subframe.
  • the indication information is only transmitted in the Downlink Pilot Time Slot (DwPTS).
  • DwPTS Downlink Pilot Time Slot
  • the indication information may also adopt a sequence in a sequence set for the NSSS. That is, one or more of the following sequences d(n).
  • n 0,1,...,131
  • n f is the radio frame number, ie SFN.
  • b q (m) is a binary sequence.
  • Table 5 is a mapping table of b q (m) and q.
  • the N ID is a Cell_ID, that is, a cell identifier. That is, the sequence of indication information is determined from the sequence set for the NSSS based on the cell identity.
  • the N ID is a function of UE_ID or IMSI.
  • the indication information In the subframe in which the indication information is transmitted, the indication information is in a PRB of the narrowband it transmits, starting from the d(0), the first frequency domain and the later time domain mapping, mapping to 12 subcarriers of one PRB, and one subframe after 11 symbols.
  • the indication information occupies a frequency width of 6 PRBs in frequency, that is, a narrow band.
  • the indication information uses a sequence in the same NSSS sequence set for each PRB of a narrow band.
  • the indication information is only sent in the DwPTS.
  • the resource element (Resource Element, RE) transmitted by the CRS does not send indication information.
  • the symbols sent in the PSS and SSS do not send indication information.
  • the not transmitting indication information means that the sequence unit d(n) is mapped to the corresponding RE, but is not transmitted.
  • the terminal device determines, according to the identifier of the terminal device and the parameter of the DRX cycle, a time domain resource that receives the indication information.
  • the communication system is an FDD communication system, and the terminal device determines, according to the identifier of the terminal device and the parameter of the DRX cycle, one of the subframe numbers of the start subframe in which the indication information is received is 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the terminal device determines one of the subframe numbers of the start subframe of the reception indication information to be 0, 1, 5, 6 according to the identifier of the terminal device and the parameter of the DRX cycle.
  • T is the DRX period of the terminal device
  • N min(T, nB)
  • nB is 4T, 2T, T, T/2, T/4, T/8, T/16 or T/32
  • nB is connected.
  • the network access device is pre-configured to the terminal device; min indicates the minimum value calculation; UE_ID is the identifier of the terminal device.
  • the nB may be pre-configured by the access network device to the terminal device by using RRC signaling.
  • the terminal device determines the sequence of the indication information according to the cell identity and/or the identity of the terminal device. Alternatively, the terminal device determines a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the cell identity. Alternatively, the terminal device determines a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the identity of the terminal device. Alternatively, the terminal device determines a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the cell identity and the identity of the terminal device.
  • the indication information is a sequence in a sequence set for a Secondary Synchronization Signal (SSS).
  • the OFDM symbol that does not receive the cell reference signal CRS is the OFDM symbol that receives the indication information in the subframe in which the terminal device determines to receive the indication information.
  • the terminal device determines that the OFDM symbol of the CRS is not received in the subframe in which the indication information is received, and the OFDM symbol that does not receive the PSS and the SSS is the OFDM symbol that receives the indication information.
  • the indication information that is repeatedly transmitted twice is received on the three OFDM symbols that receive the CRS.
  • the indication information is a sequence in a sequence set for a Narrowband Secondary Synchronization Signal (NSSS).
  • Narrowband Secondary Synchronization Signal The terminal device determines that the RE of the CRS does not receive the indication information in the subframe in which the indication information is received. The symbols occupied by the PSS and SSS do not receive indication information.
  • S304 The terminal device receives the indication information sent by the access network device on the time domain resource.
  • the terminal device After determining the time domain resource, the terminal device receives the indication information on the time domain resource.
  • the terminal device detects or does not detect downlink control information or information carried by the PDSCH in one DRX cycle according to the indication information.
  • the access network device determines a subframe set that sends downlink control information or a start subframe of information carried by the PDSCH.
  • the access network device When the indication information is a wake-up signal, the access network device needs to determine a subframe set, that is, a PO set, of the start subframe in which the downlink control information or the information carried by the PDSCH is transmitted. There is no timing relationship between S306 and S301 and S302. The downlink control information or the information carried by the PDSCH is repeatedly transmitted in one subframe or multiple effective subframes.
  • the communication system is an FDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 1, 5, 6.
  • the access network device determines, according to the following table, a subframe set that transmits downlink control information or a start subframe of information carried by the PDSCH.
  • Table 6 shows the subframe numbers of the subframes in the PO set in the FDD communication system with a system bandwidth greater than 3 MHz.
  • Table 7 shows the subframe numbers of the subframes in the PO set in the FDD communication system with the system bandwidth of 1.4 MHz and 3 MHz.
  • Table 8 shows the subframe numbers of the subframes in the PO set in the TDD communication system with the system bandwidth greater than 3 MHz.
  • Table 9 shows the subframe numbers of the subframes in the subframe number in the PO set in the system bandwidth of 1.4 MHz and 3 MHz.
  • Table 7 System bandwidth is the subframe number of the subframe in the PO set in the 1.4 MHz and 3 MHz FDD communication system.
  • Table 9 System bandwidth is the subframe number of the subframe in the subframe number in the PO set in the 1.4 MHz and 3 MHz TDD communication system.
  • the access network device determines that the subframe in the first subframe set after sending the last subframe of the indication information plus the preset number of subframes is a start subframe for transmitting downlink control information or information carried by the PDSCH. .
  • the preset number is 0 or 1.
  • the downlink control information or the information carried by the PDSCH starts to be transmitted in the subframe in the subframe set of the first start subframe after the last subframe of the transmission control information.
  • sub-frame n be the last subframe of the indication information
  • the downlink control information or the information carried by the PDSCH is transmitted starting from the subframe in the first subframe set starting from subframe n+1.
  • the subframe in the subframe set of the first start subframe is the downlink subframe control information or the start subframe of the information transmission of the PDSCH bearer.
  • the downlink control information or the information carried by the PDSCH is transmitted in one or more valid subframes starting from the starting subframe.
  • FIG. 4A is a schematic diagram of an implementation manner of determining a start subframe of transmitting downlink control information or PDSCH bearer information in the embodiment shown in FIG. 3.
  • subframes 0, 4, 5, and 9 are subframes in a subframe set of a start subframe.
  • the indication information transmitted to the terminal device 1 ends at the subframe 8, and the downlink control information transmitted to the terminal device 1 or the information carried by the PDSCH starts to be transmitted in the subframe 9.
  • the indication information transmitted to the terminal device 2 ends at the subframe 7, and the downlink control information transmitted to the terminal device 2 or the information carried by the PDSCH starts to be transmitted in the subframe 9.
  • the downlink control information or the information carried by the PDSCH starts to be transmitted in the subframe in the subframe set of the first start subframe after the last subframe of the transmission control information plus one subframe.
  • sub-frame n be the last subframe indicated, then the downlink control information or the information carried by the PDSCH is transmitted starting from the subframe in the first subframe set starting from subframe n+2.
  • the subframe in the subframe set of the first start subframe is the downlink subframe control information or the start subframe of the information transmission of the PDSCH bearer.
  • the downlink control information or the information carried by the PDSCH is transmitted in one or more valid subframes starting from the starting subframe.
  • subframes 0, 4, 5, and 9 are subframes in the subframe set of the start subframe.
  • the indication information transmitted to the terminal device 1 ends at the subframe 8, and the downlink control information transmitted to the terminal device 1 or the information carried by the PDSCH starts to be transmitted in the subframe 0.
  • the indication information sent to the terminal device 2 ends at the subframe 7, and is transmitted to the terminal device 2
  • the downlink control information or the information carried by the PDSCH starts to be transmitted in the subframe 9.
  • the access network device may send the downlink control information or the information carried by the PDSCH on the initial subframe after the wake-up signal is sent.
  • the method of determining the subframe and the radio frame for transmitting the downlink control information, the terminal device that needs to detect the indication information and the conventional MTC terminal device can reuse the same P-RNTI scrambled DCI.
  • the paging messages of the two terminal devices can be carried by the same PDSCH. Thus, when both terminal devices need to be paged simultaneously, the system overhead is saved.
  • the terminal device determines a subframe set of the start subframe that receives the downlink control information or the information carried by the PDSCH.
  • the terminal device determines that the subframe in the first subframe set after receiving the last subframe of the indication information plus the preset number of subframes is a start subframe that receives downlink control information or information carried by the PDSCH.
  • the terminal device side needs to determine the subframe set that receives the downlink control information or the information start subframe of the PDSCH bearer.
  • the preset number on the terminal device side is also 0 or 1.
  • the communication system is an FDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 1, 5, 6.
  • the paging indication method provided by the application determines, by the access network device, the time domain resource that sends the indication information according to the identifier of the terminal device and the parameter of the DRX cycle, and sends the indication information on the time domain resource.
  • the start subframe of the transmission indication information is not configured as a Multicast Broadcast Single Frequency Network (MBSFN) subframe, thereby ensuring that the start subframe of the transmission indication information can be effectively used.
  • MBSFN Multicast Broadcast Single Frequency Network
  • FIG. 6 is a signaling interaction diagram of Embodiment 3 of a paging indication method provided by the present application. Based on the embodiment shown in FIG. 2, the present application provides a detailed description of how the access network device sends indication information in the frequency domain. As shown in FIG. 6, the paging indication method provided by the present application includes:
  • the access network device determines, according to the cell identifier and the identifier of the terminal device, a frequency domain resource that sends the indication information.
  • the identifier of the terminal device is determined according to the IMSI or S-TMSI of the terminal device.
  • the indication information occupies a frequency width of 6 PRBs in frequency, that is, a narrow band.
  • the access network device can determine the frequency domain resource for sending the indication information in the following two ways:
  • the access network device determines the narrowband and the formula according to the formula for sending the indication information
  • the determined narrow band s m is the same.
  • ⁇ s j ⁇ is a narrow band set, and the number of narrow bands included therein is When the system bandwidth is >3MHz, ⁇ s j ⁇ does not contain a narrow band that overlaps with 72 subcarriers in the middle of the system bandwidth, ⁇ s j ⁇ contains other narrow bands within the system bandwidth; when the system bandwidth is less than or equal to 3MHz, ⁇ s j ⁇ contains All narrowbands within the system bandwidth;
  • the number of the narrow band contained in ⁇ s j ⁇ ; s m is the narrow band numbered m in ⁇ s j ⁇ ; Indicates the cell identity, Indicates the number of narrow bands, Predetermined for the access network device;
  • This implementation is suitable for the access network device to send indication information in a manner that does not hop.
  • the access network device can determine the narrowband for transmitting the indication information according to various manners, as long as it is based on the formula The narrow bands determined are the same. This application does not limit this.
  • the access network device determines a narrow band and a formula according to the formula for transmitting the indication information in the subframe i
  • the determined narrow band s j is the same.
  • s j is a narrow band of number j in ⁇ s j ⁇ ;
  • the communication system is a TDD communication system: Indicates the number of subframes in which the narrowband occupied by the indication information remains unchanged. Indicates the number of narrowbands used to indicate information hopping.
  • i 0 represents the absolute subframe number of the first subframe in which the information is sent.
  • the implementation is applicable to the access network device sending the indication information in a frequency hopping manner.
  • the subframe number is ns, and 10 subframes are included in one radio frame.
  • the absolute subframe number can be expressed as 10*SFN+ns.
  • the access network device sends indication information on the frequency domain resource.
  • the access network device After determining the frequency domain resource, the access network device sends indication information on the frequency domain resource.
  • the terminal device determines, according to the cell identifier and the identifier of the terminal device, the frequency domain resource that receives the indication information.
  • S604 The terminal device receives the indication information on the frequency domain resource.
  • the terminal device determines a narrowband and a formula according to the formula for receiving the indication information.
  • the determined narrow band s m is the same.
  • ⁇ s j ⁇ is a narrow band set, and the number of narrow bands included therein is
  • ⁇ s j ⁇ does not contain a narrow band that overlaps with 72 subcarriers in the middle of the system bandwidth, ⁇ s j ⁇ contains other narrow bands within the system bandwidth; when the system bandwidth is less than or equal to 3MHz, ⁇ s j ⁇ contains All narrowbands within the system bandwidth;
  • the number of the narrow band contained in ⁇ s j ⁇ ; s m is the narrow band numbered m in ⁇ s j ⁇ ; Indicates the cell identity, Indicates the number of narrow bands, Pre-configured for the access network device to the terminal device;
  • UE_ID is the identifier of the terminal device;
  • the terminal device determines a narrow band and a formula according to the formula for receiving the indication information in the subframe i
  • the determined narrow band s j is the same.
  • s j is a narrow band of number j in ⁇ s j ⁇ ;
  • the communication system is a TDD communication system: Indicates the number of subframes in which the narrowband occupied by the indication information remains unchanged. Indicates the number of narrowbands used to indicate information hopping.
  • i 0 represents the absolute subframe number of the first subframe in which the indication information is received.
  • the access network device can be pre-configured for the terminal device by using RRC signaling.
  • the terminal device detects or does not detect downlink control information or information carried by the PDSCH in one DRX cycle according to the indication information.
  • the access network device and the terminal device may determine the time domain resource for transmitting the indication information, the sequence of the indication information, the symbol for sending or receiving the indication information, and the transmission according to the manner in the embodiment shown in FIG.
  • the downlink control information or the start subframe of the information carried by the PDSCH is not described here.
  • the paging indication method provided by the application determines, by the access network device, the frequency domain resource that sends the indication information according to the cell identifier and the identifier of the terminal device, and sends the indication information on the frequency domain resource, after determining the frequency domain resource,
  • the indication information sent on the frequency domain resource does not collide with other signals, which improves the success rate of sending the indication information.
  • FIG. 7 is a schematic structural diagram of Embodiment 1 of an access network device provided by the present application.
  • the access network device provided by the present application is disposed in a communication system. As shown in Figure 7, it includes the following modules:
  • the sending module 71 is configured to send the indication information to the terminal device.
  • the indication information is used to indicate that the terminal device detects downlink control information or information carried by the PDSCH in one DRX cycle. Alternatively, the indication information is used to indicate that the terminal device does not detect the downlink control information or the information carried by the PDSCH in one DRX cycle.
  • the access network device provided by the present application is specifically configured to perform the method performed by the access network device in the embodiment shown in FIG. 2, and the implementation process, technical principles, and technical effects are similar, and details are not described herein again.
  • FIG. 8 is a schematic structural diagram of Embodiment 2 of an access network device provided by the present application. As shown in FIG. 8, the access network device provided by the present application includes:
  • the sending module 71 specifically includes:
  • a first determining sub-module 711 configured to determine, according to the identifier of the terminal device and the parameter of the DRX cycle, the sending indication Time domain resources for information.
  • the identifier of the terminal device is determined according to the IMSI or S-TMSI of the terminal device.
  • the first sending submodule 712 is configured to send the indication information on the time domain resource.
  • the first determining sub-module 711 is configured to: the communication system is an FDD communication system, and determine, according to the identifier of the terminal device and the parameter of the DRX cycle, a subframe number of the starting subframe of the sending indication information is 0, 4, 5, 9 .
  • the communication system is a TDD communication system, and the subframe number of the start subframe in which the indication information is transmitted is determined to be one of 0, 1, 5, 6 according to the identifier of the terminal device and the parameter of the DRX cycle.
  • T is the period of the DRX of the terminal device
  • N min(T, nB)
  • nB is 4T, 2T, T, T/2, T/4, T/8, T/16 or T/32
  • nB is The access network device is pre-determined; min means taking the minimum value operation; UE_ID is the identifier of the terminal device.
  • the access network device further includes: a first determining module 72, configured to determine, in the subframe that sends the indication information, that the OFDM symbol that does not send the CRS is the OFDM symbol that sends the indication information.
  • the second determining module 73 is configured to determine, in the subframe in which the indication information is sent, the OFDM symbol that does not send the CRS, and does not transmit the OFDM symbol of the PSS and the SSS as the OFDM symbol that sends the indication information.
  • the third determining module 74 in the subframe for transmitting the indication information, repeatedly transmits the indication information twice on the 3 OFDM symbols that send the CRS.
  • the indication information is one of the following sequences: a CAZAC sequence; a ZC sequence; a Gold sequence; an M sequence; a sequence in a sequence set for SSS; a sequence in a sequence set for NSSS.
  • the access network device further includes: a fourth determining module 75, configured to determine a sequence of the indication information according to the cell identifier and/or the identifier of the terminal device.
  • the fifth determining module 76 is configured to determine, according to the cell identifier, a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS.
  • the sixth determining module 77 is configured to determine a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the identifier of the terminal device.
  • the seventh determining module 78 is configured to determine, according to the cell identifier and the identifier of the terminal device, a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS.
  • the access network device further includes: an eighth determining module 79, configured to determine a subframe set that sends downlink control information or a start subframe of information carried by the PDSCH.
  • the eighth determining module 79 is further configured to determine that the subframe in the first subframe set after sending the last subframe of the indication information plus the preset number of subframes is the start of sending the downlink control information or the information carried by the PDSCH. Subframe.
  • the preset number is 0 or 1.
  • the communication system is an FDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 1, 5, 6.
  • the access network device provided by the present application is specifically configured to perform the method performed by the access network device in the embodiment shown in FIG. 3, and the implementation process, technical principles, and technical effects are similar, and details are not described herein again.
  • FIG. 9 is a schematic structural diagram of Embodiment 3 of an access network device provided by the present application.
  • the access network device provided by the present application includes:
  • the sending module 71 specifically includes: a second determining sub-module 713, configured to determine, according to the cell identifier and the identifier of the terminal device, the frequency domain resource that sends the indication information.
  • the identifier of the terminal device is based on the IMSI or S-TMSI of the terminal device. determine.
  • the second sending submodule 714 is configured to send the indication information on the frequency domain resource.
  • the second determining sub-module 713 is specifically configured to: determine a narrow band and a formula according to the formula for sending the indication information
  • the determined narrow band s m is the same.
  • ⁇ s j ⁇ is a narrow band set, and the number of narrow bands included therein is When the system bandwidth is >3MHz, ⁇ s j ⁇ does not contain a narrow band that overlaps with 72 subcarriers in the middle of the system bandwidth, ⁇ s j ⁇ contains other narrow bands within the system bandwidth; when the system bandwidth is less than or equal to 3MHz, ⁇ s j ⁇ contains All narrowbands within the system bandwidth;
  • the number of the narrow band contained in ⁇ s j ⁇ ; s m is the narrow band numbered m in ⁇ s j ⁇ ; Indicates the cell identity, Indicates the number of narrow bands, Predetermined for the access network device;
  • the determined narrow band s j is the same.
  • s j is a narrow band of number j in ⁇ s j ⁇ ;
  • i ⁇ 0
  • TDD communication system Indicates the number of subframes in which the narrowband occupied by the indication information remains unchanged.
  • the access network device provided by the present application is specifically configured to perform the method performed by the access network device in the embodiment shown in FIG. 6.
  • the implementation process, technical principles, and technical effects are similar, and details are not described herein again.
  • FIG. 10 is a schematic structural diagram of Embodiment 4 of an access network device provided by the present application.
  • the access network device provided by the present application includes:
  • a memory 102 configured to store an instruction
  • the processor 103 is connected to the memory 102 and the transceiver 101 respectively for executing instructions to perform the following steps when executing the instructions:
  • the indication information is sent to the terminal device.
  • the indication information is used to indicate that the terminal device detects downlink control information or PDSCH in one DRX cycle.
  • the indication information is used to indicate that the terminal device does not detect the downlink control information or the information carried by the PDSCH in one DRX cycle.
  • the processor 103 is configured to: determine the time domain resource that sends the indication information according to the identifier of the terminal device and the parameter of the DRX cycle.
  • the identifier of the terminal device is determined according to the IMSI or the S-TMSI of the terminal device, and the indication information is sent on the time domain resource.
  • the processor 103 is configured to: the communication system is an FDD communication system, and determine the sending indication information according to the identifier of the terminal device and the parameter of the DRX cycle.
  • the subframe number of the starting subframe is one of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the start subframe in which the indication information is transmitted is determined to be one of 0, 1, 5, 6 according to the identifier of the terminal device and the parameter of the DRX cycle.
  • an aspect of the subframe number of the start subframe in which the indication information is transmitted is 0, 4, 5, 9, or in accordance with the identifier of the terminal device and the DRX cycle
  • the parameter determines an aspect of one of 0, 1, 5, 6 of the start subframe of the transmission indication information
  • the processor 103 is configured to: determine a system frame of the radio frame in which the start subframe of the indication information is transmitted
  • T is the period of the DRX of the terminal device
  • N min(T, nB), and nB is 4T, 2T, T, T/2, T/4, T/8, T/16 or T/32
  • Ns max(1, nB/T)
  • max represents the maximum value operation
  • floor represents the round-down operation.
  • the processor 103 is further configured to: determine, in the subframe that sends the indication information, that the OFDM symbol that does not send the CRS is the OFDM symbol that sends the indication information.
  • the OFDM symbol of the CRS is not transmitted, and the OFDM symbol of the PSS and the SSS is not transmitted as the OFDM symbol for transmitting the indication information.
  • the indication information is repeatedly transmitted twice on the three OFDM symbols for transmitting the CRS.
  • the processor 103 is configured to: determine, according to the cell identifier and the identifier of the terminal device, the frequency domain resource that sends the indication information.
  • the identifier of the terminal device is determined according to the IMSI or the S-TMSI of the terminal device, and the indication information is sent on the frequency domain resource.
  • the processor 103 is configured to determine a narrowband and a formula according to the formula for transmitting the indication information according to the cell identifier and the identifier of the terminal device.
  • the determined narrow band s m is the same.
  • ⁇ s j ⁇ is a narrow band set, and the number of narrow bands included therein is When the system bandwidth is >3MHz, ⁇ s j ⁇ does not contain a narrow band that overlaps with 72 subcarriers in the middle of the system bandwidth, ⁇ s j ⁇ contains other narrow bands within the system bandwidth; when the system bandwidth is less than or equal to 3MHz, ⁇ s j ⁇ contains All narrowbands within the system bandwidth;
  • the determined narrow band s j is the same.
  • s j is a narrow band of number j in ⁇ s j ⁇ ;
  • i ⁇ 0
  • TDD communication system Indicates the number of subframes in which the narrowband occupied by the indication information remains unchanged.
  • the indication information is one of the following sequences: a CAZAC sequence; a ZC sequence; a Gold sequence; an M sequence; a sequence in a sequence set for SSS; a sequence in a sequence set for NSSS.
  • the processor 103 is further configured to: determine a sequence of the indication information according to the cell identifier and/or the identifier of the terminal device.
  • the sequence of indication information is determined from a sequence set for the SSS or a sequence set for the NSSS according to the cell identity.
  • the sequence of indication information is determined from a sequence set for the SSS or a sequence set for the NSSS according to the identity of the terminal device.
  • the sequence of indication information is determined from a sequence set for the SSS or a sequence set for the NSSS according to the cell identity and the identity of the terminal device.
  • the processor 103 is further configured to: determine a subframe set that sends downlink control information or a start subframe of the PDSCH bearer information; and determine, after the last subframe that sends the indication information, plus a preset number of subframes.
  • the subframe in the first subframe set is a start subframe for transmitting downlink control information or information carried by the PDSCH.
  • the preset number is 0 or 1.
  • the communication system is an FDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 1, 5, 6.
  • the access network device provided by the present application is specifically configured to perform the method performed by the access network device in the embodiment shown in FIG. 2, FIG. 3 or FIG. 6, and the implementation process, technical principles, and technical effects are similar, and details are not described herein again.
  • FIG. 11 is a schematic structural diagram of Embodiment 1 of a terminal device provided by the present application.
  • the terminal device provided by the present application is disposed in a communication system. As shown in FIG. 11, it includes the following modules:
  • the receiving module 111 is configured to receive indication information sent by the access network device.
  • the indication information is used to indicate that the terminal device detects the downlink control information or the information carried by the physical downlink shared channel PDSCH in one DRX cycle. Alternatively, the indication information is used to indicate that the terminal device does not detect the downlink control information or the information carried by the PDSCH in one DRX cycle.
  • the detecting module 112 is configured to detect or not detect downlink control information or information carried by the PDSCH in one DRX cycle according to the indication information.
  • the terminal device provided by the application is specifically configured to perform the method performed by the terminal device in the embodiment shown in FIG. Processes, technical principles, and technical effects are similar and will not be repeated here.
  • FIG. 12 is a schematic structural diagram of Embodiment 2 of a terminal device provided by the present application. As shown in FIG. 12, the terminal device provided by the present application includes:
  • the receiving module 111 includes: a first determining sub-module 1111, configured to determine, according to the identifier of the terminal device and the parameter of the DRX cycle, a time domain resource that receives the indication information.
  • the identifier of the terminal device is determined according to the IMSI or S-TMSI of the terminal device.
  • the first receiving submodule 1112 is configured to receive the indication information sent by the access network device on the time domain resource.
  • the first determining sub-module 1111 is configured to: the communication system is an FDD communication system, and determine, according to the identifier of the terminal device and the parameter of the DRX cycle, one of the subframe numbers of the start subframe receiving the indication information is 0, 4, 5, and 9, .
  • the communication system is a TDD communication system, and the subframe number of the start subframe in which the indication information is received is determined to be one of 0, 1, 5, 6 according to the identifier of the terminal device and the parameter of the DRX cycle.
  • T is the period of the DRX of the terminal device
  • N min(T, nB), and nB is 4T, 2T, T, T/2, T/4, T/8, T/16 or T/32
  • Ns max(1, nB/T)
  • max represents the maximum value operation, and floor represents the round-down operation.
  • the terminal device further includes: a first determining module 113, configured to determine, in the subframe that receives the indication information, that the OFDM symbol that does not receive the CRS is the OFDM symbol that receives the indication information.
  • the second determining module 114 is configured to determine, in the subframe that receives the indication information, that the OFDM symbol of the CRS is not received, and the OFDM symbol of the PSS, the SSS is not received, and the OFDM symbol that receives the indication information.
  • the third determining module 115 is configured to determine, in the subframe that receives the indication information, the indication information that is repeatedly sent twice on the three OFDM symbols that receive the CRS.
  • the indication information is one of the following sequences: a CAZAC sequence; a ZC sequence; a Gold sequence; an M sequence; a sequence in a sequence set for SSS; a sequence in a sequence set for NSSS.
  • the terminal device further includes: a fourth determining module 116, configured to determine a sequence of the indication information according to the cell identifier and/or the identifier of the terminal device.
  • the fifth determining module 117 is configured to determine, according to the cell identifier, a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS.
  • the sixth determining module 118 is configured to determine a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS according to the identifier of the terminal device.
  • the seventh determining module 119 is configured to determine, according to the cell identifier and the identifier of the terminal device, a sequence of indication information from a sequence set for the SSS or a sequence set for the NSSS.
  • the terminal device further includes: an eighth determining module 120, configured to determine a subframe set that receives the downlink control information or the start subframe of the information carried by the PDSCH.
  • the eighth determining module 120 is further configured to determine that the subframe in the first subframe set after receiving the last subframe of the indication information plus the preset number of subframes is the start of receiving the downlink control information or the information carried by the PDSCH. Subframe.
  • the preset number is 0 or 1.
  • the communication system is an FDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 1, 5, 6.
  • the terminal device provided by the present application is specifically configured to perform the method performed by the terminal device in the embodiment shown in FIG. 3, and the implementation process, technical principles, and technical effects are similar, and details are not described herein again.
  • FIG. 13 is a schematic structural diagram of Embodiment 3 of a terminal device provided by the present application. As shown in FIG. 13, the terminal device provided by the present application includes:
  • the receiving module 111 specifically includes: a second determining sub-module 1113, configured to determine, according to the cell identifier and the identifier of the terminal device, the frequency domain resource that receives the indication information.
  • the identifier of the terminal device is determined according to the IMSI or S-TMSI of the terminal device.
  • the second receiving submodule 1114 is configured to receive the indication information on the frequency domain resource.
  • the second determining sub-module 1113 is specifically configured to: determine a narrowband of the indication information and according to the formula The determined narrow band s m is the same.
  • ⁇ s j ⁇ is a narrow band set, and the number of narrow bands included therein is When the system bandwidth is >3MHz, ⁇ s j ⁇ does not contain a narrow band that overlaps with 72 subcarriers in the middle of the system bandwidth, ⁇ s j ⁇ contains other narrow bands within the system bandwidth; when the system bandwidth is less than or equal to 3MHz, ⁇ s j ⁇ contains All narrowbands within the system bandwidth;
  • the determined narrow band s j is the same.
  • s j is a narrow band of number j in ⁇ s j ⁇ ;
  • i ⁇ 0
  • TDD communication system Indicates the number of subframes in which the narrowband occupied by the indication information remains unchanged. Indicates the number of narrowbands used to indicate information hopping.
  • i 0 represents the absolute subframe number of the first subframe in which the indication information is received.
  • the terminal device provided by the present application is specifically used to perform the method performed by the terminal device in the embodiment shown in FIG. 6.
  • the implementation process, technical principles, and technical effects are similar, and details are not described herein again.
  • FIG. 14 is a schematic structural diagram of Embodiment 4 of a terminal device provided by the present application. As shown in FIG. 14, the terminal device provided by the present application includes:
  • a memory 142 configured to store an instruction
  • the processor 143 is respectively connected to the memory 142 and the transceiver 141 for executing instructions to perform the following steps when executing the instructions:
  • the indication information is used to indicate that the terminal device detects downlink control information or PDSCH bearer information in one DRX cycle; or the indication information is used to indicate that the terminal device does not detect downlink control information or PDSCH bearer information in one DRX cycle.
  • the downlink control information or the information carried by the PDSCH is detected or not detected in one DRX cycle according to the indication information.
  • the processor 143 is configured to: determine, according to the identifier of the terminal device and the parameter of the DRX cycle, the time domain resource that receives the indication information, in the aspect of receiving the indication information sent by the access network device.
  • the identifier of the terminal device is determined according to the International Mobile Subscriber Identity (IMSI) or the Temporary Mobile Subscriber Identity (SIMS) of the terminal device; and the indication information sent by the access network device is received on the time domain resource.
  • IMSI International Mobile Subscriber Identity
  • SIMS Temporary Mobile Subscriber Identity
  • the processor 143 is configured to: the communication system is an FDD communication system, and determine, according to the identifier of the terminal device and the parameter of the DRX cycle, the indication information to be received, in the aspect of determining the time domain resource of the indication information according to the identifier of the terminal device and the parameter of the DRX cycle.
  • the subframe number of the starting subframe is one of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the start subframe in which the indication information is received is determined to be one of 0, 1, 5, 6 according to the identifier of the terminal device and the parameter of the DRX cycle.
  • an aspect of the subframe number of the start subframe in which the indication information is received is 0, 4, 5, 9, or in accordance with the identifier of the terminal device and the DRX cycle
  • the parameter determines an aspect of receiving one of 0, 1, 5, 6 of the start subframe of the indication information
  • the processor 143 is configured to: determine an SFN of the radio frame in which the start subframe of the indication information is received
  • T is the period of the DRX of the terminal device
  • N min(T, nB)
  • nB is 4T, 2T, T, T/2, T/4, T/8, T/16 or T/32
  • nB is The access network device is pre-configured to the terminal device
  • min indicates the minimum value operation
  • Ns max(1, nB/T)
  • max represents the maximum value operation
  • floor represents the round-down operation.
  • the processor 143 is further configured to: determine, in the subframe that receives the indication information, that the OFDM symbol that does not receive the CRS is the OFDM symbol that receives the indication information.
  • the OFDM symbol that does not receive the CRS and does not receive the OFDM symbol of the PSS and the SSS is the OFDM symbol that receives the indication information.
  • the indication information that is repeatedly transmitted twice is received on the three OFDM symbols that receive the CRS.
  • the processor 143 is configured to: determine, according to the cell identifier and the identifier of the terminal device, the frequency domain resource that receives the indication information.
  • the identifier of the terminal device is determined according to the IMSI or the S-TMSI of the terminal device, and the indication information is received on the frequency domain resource.
  • the processor 143 is configured to: determine a narrowband of the indication information according to the formula, and determine, according to the cell identifier and the identifier of the terminal device, the frequency domain resource that receives the indication information.
  • the determined narrow band s m is the same.
  • the determined narrow band s j is the same.
  • s j is a narrow band of number j in ⁇ s j ⁇ ;
  • i ⁇ 0
  • TDD communication system Indicates the number of subframes in which the narrowband occupied by the indication information remains unchanged. Indicates the number of narrowbands used to indicate information hopping.
  • i 0 represents the absolute subframe number of the first subframe in which the indication information is received.
  • the indication information is one of the following sequences: a CAZAC sequence; a ZC sequence; a Gold sequence; an M sequence; a sequence in a sequence set for SSS; a sequence in a sequence set for NSSS.
  • the processor 143 is further configured to: determine a sequence of the indication information according to the cell identifier and/or the identifier of the terminal device.
  • the sequence of indication information is determined from a sequence set for the SSS or a sequence set for the NSSS according to the cell identity.
  • the sequence of indication information is determined from a sequence set for the SSS or a sequence set for the NSSS according to the identity of the terminal device.
  • the sequence of indication information is determined from a sequence set for the SSS or a sequence set for the NSSS according to the cell identity and the identity of the terminal device.
  • the processor 143 is further configured to: determine a subframe set that receives downlink control information or a start subframe of the PDSCH bearer information; and determine, after receiving the last subframe of the indication information and adding a preset number of subframes.
  • the subframe in the first subframe set is a start subframe that receives downlink control information or information carried by the PDSCH.
  • the preset number is 0 or 1.
  • the communication system is an FDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 4, 5, and 9.
  • the communication system is a TDD communication system, and the subframe number of the subframe included in the subframe set is one or more of 0, 1, 5, 6.
  • the terminal device provided by the present application is specifically configured to perform the method performed by the terminal device in the embodiment shown in FIG. 2, FIG. 3 or FIG. 6, and the implementation process, technical principles, and technical effects are similar, and details are not described herein again.
  • FIG. 15 is a schematic structural diagram of an embodiment of a communication system provided by the present application.
  • the communication system provided by the present application includes: the access network device 151 in the embodiment shown in any of FIGS. 7-10, and any implementation of FIG. 11-14.
  • Terminal device 152 in the example.
  • the present application provides a computer readable storage medium comprising computer executed instructions for causing an access network device to perform a method performed by an access network device in the embodiment shown in FIG. 2, FIG. 3 or FIG.
  • the present application provides a computer readable storage medium comprising computer executed instructions for causing a terminal device to perform a method performed by a terminal device in the embodiment shown in FIG. 2, FIG. 3 or FIG.
  • the application also provides a program product comprising execution instructions stored in a computer readable storage medium.
  • At least one processor of the access network device can read the computer execution instructions from a readable storage medium, and the at least one processor executes the execution instructions such that the access network device implements the embodiment shown in FIG. 2, FIG. 3 or FIG. The method performed by the network access device.
  • the application further provides a program product, the program product comprising an execution instruction, the execution instruction being stored in a computer readable storage medium.
  • At least one processor of the terminal device can read the computer execution instructions from the readable storage medium, and the at least one processor executes the execution instructions to cause the terminal device to implement the access network device in the embodiment shown in FIG. 2, FIG. 3 or FIG. Methods.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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

Abstract

La présente invention concerne un procédé et un appareil d'instruction de radiomessagerie. Le procédé comprend les étapes suivantes : un dispositif de réseau d'accès envoie des informations d'instruction à un dispositif terminal, les informations d'instruction étant utilisées pour ordonner au dispositif terminal de détecter des informations de commande de liaison descendante ou des informations portées par un PDSCH dans un seul cycle DRX, ou les informations d'instruction étant utilisées pour ordonner au dispositif terminal de ne pas détecter les informations de commande de liaison descendante ni les informations portées par un PDSCH dans un seul cycle DRX ; le dispositif terminal reçoit les informations d'instruction envoyées par le dispositif de réseau d'accès ; et le dispositif terminal détecte ou saute la détection des informations de commande de liaison descendante ou des informations portées par un PDSCH dans un seul cycle DRX selon les informations d'instruction. De cette façon, après la réception des informations d'instruction, le dispositif terminal détecte ou ne détecte pas des informations de commande de liaison descendante ou des informations portées par un PDSCH dans un seul cycle DRX selon les informations d'instruction, ce qui permet de réduire la consommation d'énergie du dispositif terminal.
PCT/CN2017/083331 2017-05-05 2017-05-05 Procédé et appareil d'instruction de radiomessagerie WO2018201482A1 (fr)

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PCT/CN2017/083331 WO2018201482A1 (fr) 2017-05-05 2017-05-05 Procédé et appareil d'instruction de radiomessagerie

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