WO2016180106A1 - Procédé et appareil pour réduire un intervalle de temps de transmission de messages de radiomessagerie - Google Patents

Procédé et appareil pour réduire un intervalle de temps de transmission de messages de radiomessagerie Download PDF

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Publication number
WO2016180106A1
WO2016180106A1 PCT/CN2016/078583 CN2016078583W WO2016180106A1 WO 2016180106 A1 WO2016180106 A1 WO 2016180106A1 CN 2016078583 W CN2016078583 W CN 2016078583W WO 2016180106 A1 WO2016180106 A1 WO 2016180106A1
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Prior art keywords
paging
tti
radio frame
location
message
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English (en)
Chinese (zh)
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王绍江
吴昱民
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • 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, but is not limited to, a wireless communication technology, and in particular, to a method and apparatus for reducing a paging message transmission time interval.
  • the discontinuous reception (DRX) of the UE (User Equipment) in the LTE (Long Term Evolution) system is transmitted through the PDSCH (Physical Downlink Shared Channel).
  • the UE activates a PDCCH (Physical Downlink Control Channel) and a PDSCH (Physical Downlink Shared Channel) at a PO (Paging Occasion) of a designated PF (Paging Frame).
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • PO Physical Downlink Shared Channel
  • the current length of the paging message is fixed to the length of one subframe (1 millisecond), which means that the time of each activation is at least 1 millisecond. If the activation time of the Paging message is further reduced, the UE can further reduce the power consumption of the Paging message, and the paging message can be shortened, which is beneficial to reducing the delay of the paging.
  • the transmission time interval (TTI, Transmission Time Interval) of less than 1 millisecond for the PDCCH and the PDSCH introduced in the 5G technology provides a possibility for the Paging message to reduce the time of each activation.
  • TTI Transmission Time Interval
  • the manner in which the UE receives the Paging message can only determine the location of the UE Paging to a specific subframe, and when the PDSCH uses a TTI of less than 1 millisecond. There may be multiple TTIs in a subframe.
  • the method for determining the paging location cannot determine which TTI in the subframe is used for paging.
  • the PDSCH of the TTI less than 1 millisecond cannot be reasonably used to transmit the paging message.
  • Embodiments of the present invention provide a method and apparatus for reducing a paging message transmission time interval, which reduces call delay and reduces terminal power consumption by shortening a transmission time interval of a paging message.
  • An embodiment of the present invention provides a method for reducing a paging message transmission time interval, including:
  • TTI transmission time interval
  • determining the location of listening to the paging message TTI includes:
  • a location of listening to the paging message TTI is determined in the paging subframe.
  • determining the location of listening to the paging message TTI includes:
  • a location for listening to the paging message TTI is determined in the paging radio frame.
  • the predetermined TTI includes one of: a time length of one orthogonal frequency division multiplexing (OFDM) symbol, a length of time of two OFDM symbols, a length of time of three OFDM symbols, and four OFDM symbols.
  • determining, according to the monitored paging message, that the paging radio frame includes:
  • the paging radio frame is determined based on the identity (ID) number of the user terminal (UE), the period of the paging radio frame listening to the paging message, and the number of radio frames used for paging within one paging radio frame period.
  • determining, according to the monitored paging message, that the paging radio frame includes:
  • SFN system frame number
  • T is a period of a paging radio frame for monitoring a paging message, in units of radio frames;
  • N The number of radio frames used for paging in a paging radio frame period; mod indicates redundancy, and div indicates divisibility.
  • determining a paging subframe position in the paging radio frame includes:
  • the paging subframe position is determined according to the identification number (ID) number of the UE, the number of radio frames used for paging in one paging radio frame period, and the number of subframes used for paging in one paging radio frame.
  • ID identification number
  • the paging subframe position is determined according to the identification number (ID) number of the UE, the number of radio frames used for paging in one paging radio frame period, and the number of subframes used for paging in one paging radio frame.
  • determining a paging subframe position in the paging radio frame includes:
  • the position indication information of the paging subframe is determined according to the following formula:
  • i_s is the location indication information of the paging subframe
  • UE_ID is the ID number of the UE
  • UE_ID IMSI mod 1024
  • IMSI is the international mobile subscriber identity
  • N is the radio frame used for paging in a paging radio frame period. Number of Ns is the number of subframes used for paging in a paging radio frame, mod is the remainder, and floor is rounded down;
  • the paging subframe position is determined according to the correspondence between the location indication information of the paging subframe and the paging subframe position.
  • determining, in the paging subframe, a location of listening to the paging message TTI includes:
  • the identity (ID) number of the UE the number of radio frames used for paging in a paging radio frame period, the number of subframes used for paging in a paging radio frame, and a paging subframe.
  • the number of TTIs for paging determines the location of the paging message TTI.
  • determining, in the paging subframe, a location of listening to the paging message TTI includes:
  • the location indication information of the TTI for paging in the paging subframe is determined according to the following formula:
  • J_tti floor[UE_ID/(N*Ns)]mod N_tti,
  • j_tti is the location indication information of the TTI used for paging in the paging subframe
  • UE_ID is the ID number of the UE
  • UE_ID IMSI mod 1024
  • IMSI is the international mobile subscriber identity code
  • N is a paging radio frame period The number of radio frames used for paging
  • Ns is the number of subframes used for paging in a paging radio frame
  • N_tti is the number of TTIs used for paging in a paging subframe
  • mod is taken Yu, floor means round down
  • floor means round down
  • determining, in the paging radio frame, the location of listening to the paging message TTI includes:
  • the location of the paging message TTI is determined based on the ID number of the UE, the number of radio frames used for paging in a paging radio frame period, and the number of TTIs used for paging in a paging radio frame.
  • determining, in the paging radio frame, the location of listening to the paging message TTI includes:
  • the location indication information of the TTI for paging in the radio frame is determined according to the following formula:
  • I_tti floor(UE_ID/N)mod Ntti,
  • i_tti is the location indication information of the TTI used for paging in the radio frame
  • UE_ID is the ID number of the UE
  • UE_ID IMSI mod 1024
  • IMSI is the international mobile subscriber identity code
  • N is used for one paging radio frame period. The number of radio frames that are paged, Ntti is the number of TTIs used for paging in a paging radio frame, mod is the remainder, and floor is rounded down;
  • the location of the paging message TTI is determined according to the correspondence between the location indication information of the TTI for paging in the radio frame and the location of the paging message TTI.
  • the method further includes:
  • the ability to determine whether the UE and/or the network side device supports a predetermined TTI is determined.
  • the determining whether the UE supports a predetermined TTI includes:
  • Querying the UE attach procedure or the tracking area update process determines whether the UE supports the listening capability of the predetermined TTI.
  • determining whether the network side device supports the monitoring capability of the predetermined TTI includes:
  • Whether the network side device supports the paging capability of the predetermined TTI is determined by whether the system information broadcasts the paging information of the predetermined TTI in the SIB message.
  • the method further includes:
  • An embodiment of the present invention further provides an apparatus for reducing a paging message transmission time interval, including:
  • the monitoring module is configured to: listen to a paging message sent by the network side device by using a predetermined TTI;
  • the paging module is configured to: determine a location to listen to the paging message TTI, wherein the predetermined TTI is less than 1 millisecond.
  • the paging module includes:
  • a first radio frame unit configured to: determine a paging radio frame according to the monitored paging message
  • a subframe unit configured to: determine a paging subframe position in the paging radio frame
  • the first paging location unit is configured to determine, in the paging subframe, a location to listen to the paging message TTI.
  • the paging module includes:
  • a second radio frame unit configured to: determine a paging radio frame according to the monitored paging message
  • the second paging location unit is configured to determine a location in the paging radio frame to listen to the paging message TTI.
  • the first radio frame unit determines, according to the monitored paging message, that the paging radio frame or the second radio frame unit determines the homing according to the intercepted paging message by: Call radio frame:
  • the paging radio frame is determined according to the ID number of the UE, the period of the paging radio frame that listens to the paging message, and the number of radio frames used for paging within one paging radio frame period.
  • the first radio frame unit determines, according to the intercepted paging message, that the paging radio frame or the second radio frame unit determines the homing according to the intercepted paging message by: Call radio frame:
  • SFN system frame number
  • T is the period of the paging radio frame for monitoring the paging message, in units of radio frames;
  • N is a paging radio frame The number of radio frames used for paging during the period; mod indicates redundancy, and div indicates divisibility.
  • the subframe unit determines a paging subframe position in the paging radio frame by:
  • the paging subframe position is determined according to the ID number of the UE, the number of radio frames used for paging in one paging radio frame period, and the number of subframes used for paging in one paging radio frame.
  • the subframe unit determines a paging subframe position in the paging radio frame by:
  • the position indication information of the paging subframe is determined according to the following formula:
  • i_s is the location indication information of the paging subframe
  • UE_ID is the ID number of the UE
  • UE_ID IMSI mod 1024
  • IMSI is the international mobile subscriber identity
  • N is the radio frame used for paging in a paging radio frame period. Number of Ns is the number of subframes used for paging in a paging radio frame, mod is the remainder, and floor is rounded down;
  • the paging subframe position is determined according to the correspondence between the location indication information of the paging subframe and the paging subframe position.
  • the first paging location unit determines, in the paging subframe, a location of listening to the paging message TTI by:
  • the ID number of the UE determines the location of the paging message TTI.
  • the first paging location unit determines, in the paging subframe, a location of listening to the paging message TTI by:
  • the location indication information of the TTI for paging in the paging subframe is determined according to the following formula:
  • J_tti floor[UE_ID/(N*Ns)]mod N_tti,
  • j_tti is the location indication information of the TTI used for paging in the paging subframe
  • UE_ID is the ID number of the UE
  • UE_ID IMSI mod 1024
  • IMSI is the international mobile subscriber identity code
  • N is a paging radio frame period The number of radio frames used for paging
  • Ns is the number of subframes used for paging in a paging radio frame
  • N_tti is the number of TTIs used for paging in a paging subframe
  • mod is taken Yu, floor means round down
  • floor means round down
  • the location of the paging message TTI is determined according to the correspondence between the location indication information of the TTI for paging in the paging subframe and the location of the paging message TTI.
  • the second paging location unit determines, in the paging radio frame, a location to listen to the paging message TTI by:
  • the location of the paging message TTI is determined based on the ID number of the UE, the number of radio frames used for paging in a paging radio frame period, and the number of TTIs used for paging in a paging radio frame.
  • the second paging location unit determines, in the paging radio frame, a location to listen to the paging message TTI by:
  • the location indication information of the TTI for paging in the radio frame is determined according to the following formula:
  • I_tti floor(UE_ID/N)mod Ntti,
  • i_tti is the location indication information of the TTI used for paging in the radio frame
  • UE_ID is the ID number of the UE
  • UE_ID IMSI mod 1024
  • IMSI is the international mobile subscriber identity code
  • N is used for one paging radio frame period. The number of radio frames that are paged, Ntti is the number of TTIs used for paging in a paging radio frame, mod is the remainder, and floor is rounded down;
  • the location of the paging message TTI is determined according to the correspondence between the location indication information of the TTI for paging in the radio frame and the location of the paging message TTI.
  • the device further includes:
  • the capability module is configured to: determine whether the UE and/or the network side device support the predetermined TTI.
  • the capability module determines, by the following manner, whether the UE supports a predetermined TTI:
  • Querying the UE attach procedure or the tracking area update process determines whether the UE supports the listening capability of the predetermined TTI.
  • the capability module determines whether the network side device supports the monitoring capability of the predetermined TTI by:
  • Whether the network side device supports the paging capability of the predetermined TTI is determined by whether the system information broadcast (SIB) message includes the paging information of the predetermined TTI.
  • SIB system information broadcast
  • the device further includes:
  • the triggering module is configured to: trigger the network side device to send a paging message by using the predetermined TTI.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, the method for implementing the reduced paging message TTI when the computer executable instructions are executed.
  • the method and apparatus provided by the embodiments of the present invention transmit a paging message by using a PDSCH with a transmission interval of less than 1 millisecond, so that the UE can shorten the paging delay, and enable the UE to shorten the time for activation of the paging message, and further Reduce the power consumption of the UE.
  • FIG. 1 is a flowchart of a method for reducing a paging message transmission time interval according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of an apparatus for reducing a paging message transmission time interval according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method 1 for determining a paging location according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method 2 for determining a paging location according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of signaling processes according to Embodiment 1 and Embodiment 7 of the present invention.
  • FIG. 10 is a schematic flowchart of signaling according to Embodiment 5 of the present invention.
  • FIG. 11 is a schematic flowchart of signaling according to Embodiment 6 of the present invention.
  • an embodiment of the present invention provides a method for reducing a paging message transmission time interval, which is applied to a terminal side, and includes:
  • TTI transmission time interval
  • the network side device sends a paging message by using a TTI of less than 1 millisecond, correspondingly, the terminal uses a TTI to listen to the paging message of less than 1 millisecond, and determines the location where the network side device sends the paging message TTI, that is, the terminal monitors the paging message TTI. s position.
  • the network side device and the terminal side determine the location of the paging according to the same method, so that the network side device can send the Paging while the UE can listen to the paging.
  • the predetermined TTI includes one of: a time length of one orthogonal frequency division multiplexing (OFDM) symbol, a length of time of two OFDM symbols, a length of time of three OFDM symbols, a length of time of four OFDM symbols, and five The length of time of OFDM symbols, the length of time of 6 OFDM symbols, the length of time of 7 OFDM symbols, 0.5 milliseconds, 1 time slot.
  • OFDM orthogonal frequency division multiplexing
  • the determining to monitor the location of the paging message TTI includes:
  • a location for listening to the paging message TTI is determined in the paging radio frame.
  • Determining, according to the monitored paging message, that the paging radio frame comprises:
  • Determining paging radio based on the identity (ID) number of the user terminal (UE), the paging radio frame period of the paging message (Paging Cycle), and the number of radio frames used for paging in a paging radio frame period frame.
  • a system frame number (SFN) that satisfies the following formula is determined as a paging radio frame:
  • T is the period of the paging radio frame for monitoring the paging message, in units of radio frames;
  • T div N generally requires T to be an integer multiple of N.
  • Determining the paging subframe position in the paging radio frame includes:
  • the paging subframe position is determined according to the ID number of the UE, the number of radio frames used for paging in one paging radio frame period, and the number of subframes used for paging in one paging radio frame.
  • the location indication information of the paging subframe is determined according to the following formula:
  • i_s is the location indication information of the paging subframe
  • UE_ID is the ID number of the UE
  • UE_ID IMSI mod 1024
  • IMSI is the international mobile subscriber identity
  • N is the radio frame used for paging in a paging radio frame period. Number of Ns is the number of subframes used for paging in a paging radio frame, mod is the remainder, and floor is rounded down;
  • the paging subframe position is determined according to the correspondence between the location indication information of the paging subframe and the paging subframe position.
  • the correspondence between the location indication information of the paging subframe and the location of the paging subframe is:
  • FDD Frequency Division Duplexing
  • Ns is the number of subframes used for paging in a paging radio frame
  • I_s is the "position indication information of the paging subframe" calculated according to the formula
  • PO Paging Occasion
  • paging sub-frame position which borrows the PO description in the relevant protocol, and can also be modified into other descriptions, and the value is the subframe number in the paging radio frame.
  • TDD Time Division Duplexing
  • the UL/DL (Up Link/Down Link) configuration is the standard content of the TDD mode in LTE. There may be multiple uplink and downlink configurations. In different uplink and downlink configurations, the downlink sub-frames in a radio frame. The distribution of frames is different. Here, “all" means that this table is suitable for all uplink and downlink configurations, and the query mode is consistent with the FDD system.
  • Determining, in the paging subframe, a location of listening to the paging message TTI includes:
  • the ID number of the UE determines the location of the paging message TTI.
  • the location indication information of the TTI for paging in the paging subframe is determined according to the following formula:
  • J_tti floor[UE_ID/(N*Ns)]mod N_tti,
  • j_tti is the location indication information of the TTI used for paging in the paging subframe
  • UE_ID is the ID number of the UE
  • UE_ID IMSI mod 1024
  • IMSI is the international mobile subscriber identity code
  • N is a paging radio frame period The number of radio frames used for paging
  • Ns is the number of subframes used for paging in a paging radio frame
  • N_tti is the number of TTIs used for paging in a paging subframe
  • mod is taken Yu, floor means round down
  • floor means round down
  • the location of the paging message TTI is determined according to the correspondence between the location indication information of the TTI for paging in the paging subframe and the location of the paging message TTI.
  • the location of the paging message TTI for the UE may be determined.
  • the location may be given in the form of a TTI, where the TTI number refers to the TTI in a subframe. The number starting with 0.
  • N_tti is the number of TTIs that can be used for paging in a subframe. It can be fixed to a certain value, or it can be directly configured through the network.
  • the TTI position indication information used for paging in one subframe may be indicated in the form of a bitmap, each bit of the bitmap sequentially represents each TTI in the subframe, and the corresponding TTI may be used for paging and not. Used for paging with different values.
  • the number of TTIs for paging in one subframe is N_tti, and the number of bits in the bitmap indicating that the corresponding TTI can be used for paging (when 1 is used to indicate that the corresponding TTI can be used for paging, The number of 1 in the bitmap).
  • the bitmap can be broadcast to the UE through a system broadcast message.
  • the paging message TTI for a certain UE in a paging subframe may have one or more locations, that is, j_tti may correspond to one or more TTIs for paging.
  • J_tti and the TTI location for paging can be obtained by means of a mapping table.
  • a correspondence table of j_tti, N_tti, and a TTI position for paging is preset, and one j_tti may correspond to one or more TTI locations for paging, and after calculating a j_tti of a certain UE, by querying J_tti and N_tti can get a page for which the UE or certain TTI locations are available for the UE.
  • the correspondence between j_tti and TTI for paging can be obtained according to the bitmap.
  • bitmap information (bitmap) of the TTI for paging is broadcast in the broadcast message, each bit represents one TTI in the subframe, and 1 or 0 indicates whether the corresponding TTI is available for paging.
  • the TTI for paging can be obtained as the paging position of the UE, and the TTI specifically used for paging can be obtained by combining the bitmap obtained from the broadcast message.
  • Determining, in the paging radio frame, a location of listening to the paging message TTI includes:
  • the location of the paging message TTI is determined based on the ID number of the UE, the number of radio frames used for paging in a paging radio frame period, and the number of TTIs used for paging in a paging radio frame.
  • the location indication information of the TTI for paging in the radio frame is determined according to the following formula:
  • I_tti floor(UE_ID/N)mod Ntti,
  • i_tti is the location indication information of the TTI used for paging in the radio frame
  • UE_ID is the ID number of the UE
  • UE_ID IMSI mod 1024
  • IMSI is the international mobile subscriber identity code
  • N is used for one paging radio frame period. The number of radio frames that are paged, Ntti is the number of TTIs used for paging in a paging radio frame, mod is the remainder, and floor is rounded down;
  • the location of the paging message TTI is determined according to the correspondence between the location indication information of the TTI for paging in the radio frame and the location of the paging message TTI.
  • Ntti is the number of TTIs that can be used for paging in a subframe, and can be fixed to a certain value, or can be directly configured through a network.
  • the TTI available for paging in a radio frame may be indicated in the form of a bitmap, each bit of the bitmap sequentially representing each TTI in the radio frame, and the corresponding TTI may be used for paging and not available for searching.
  • the call time is represented by a different value.
  • the number of TTIs that can be used for paging in a radio frame is Ntti, and the number of bits in the bitmap indicating that the corresponding TTI can be used for paging (when 1 is used to indicate that the corresponding TTI can be used for paging, The number of 1 in the bitmap).
  • the bitmap can be broadcast to the UE through a system broadcast message.
  • the location of the paging TTI for a certain UE in a paging radio frame may be one or more, that is, i_tti may correspond to one or more TTIs for paging.
  • the i_tti and the TTI location for paging can be obtained by means of a mapping table.
  • i_tti, Ntti, and a correspondence table of TTI locations for paging are preset, and one i_tti may correspond to one or more TTI locations for paging (the TTIs in one radio frame are sequentially numbered as a whole).
  • the correspondence between i_tti and TTI for paging can be obtained according to the bitmap.
  • bitmap information (bitmap) of the TTI for paging is broadcast in the broadcast message, each bit represents a TTI in the radio frame, and 1 or 0 indicates whether the corresponding TTI is available for paging.
  • the TTI for paging can be obtained as the paging position of the UE, and the TTI specifically used for paging can be obtained by combining the bitmap obtained from the broadcast message.
  • the method further includes:
  • the ability to determine whether the UE and/or the network side device supports a predetermined TTI is determined.
  • whether the paging message is transmitted on the PDSCH of the TTI less than 1 millisecond can be determined according to the UE capability and whether the eNodeB supports the paging of the TTI less than 1 millisecond.
  • the capability for determining whether the UE supports a predetermined TTI includes:
  • the UE Capability Enquiry process may be used to obtain the UE capability in the process of the UE Attachment (TAU), and the UE may notify the network side UE by reporting the UE Capability Information. .
  • the determining the listening capability of the network side device to support the predetermined TTI includes:
  • Whether the network side device supports the paging capability of the predetermined TTI is determined by whether the system information broadcast (SIB) message includes the paging information of the predetermined TTI.
  • SIB system information broadcast
  • the method further includes:
  • the UE may also carry the indication of the paging of the TTI that needs to use less than 1 millisecond in the Attach or TAU process to trigger the paging message to be less than 1 millisecond. Transmission on the PDSCH of the TTI.
  • an embodiment of the present invention further provides an apparatus for reducing a paging message transmission time interval, including:
  • the monitoring module is configured to: listen to a paging message sent by the network side device by using a predetermined TTI;
  • the paging module is configured to: determine a location to listen to the paging message TTI, wherein the predetermined TTI is less than 1 millisecond.
  • the paging module includes:
  • a first radio frame unit configured to: determine a paging radio frame according to the monitored paging message
  • a subframe unit configured to: determine a paging subframe position in the paging radio frame
  • the first paging location unit is configured to determine, in the paging subframe, a location to listen to the paging message TTI.
  • the paging module includes:
  • a second radio frame unit configured to: determine a paging radio frame according to the monitored paging message
  • the second paging location unit is configured to determine a location in the paging radio frame to listen to the paging message TTI.
  • the first radio frame unit determines, according to the intercepted paging message, a paging radio frame or the second radio frame unit determines a paging radio frame according to the monitored paging message by:
  • the paging radio frame is determined according to the ID number of the UE, the period of the paging radio frame that listens to the paging message, and the number of radio frames used for paging within one paging radio frame period.
  • a system frame number (SFN) that satisfies the following formula is determined as a paging radio frame:
  • T is the period of the paging radio frame for monitoring the paging message, in units of radio frames;
  • N is a paging radio frame The number of radio frames used for paging during the period; mod indicates redundancy, and div indicates divisibility.
  • the subframe unit determines a paging subframe position in the paging radio frame by:
  • the paging subframe position is determined according to the ID number of the UE, the number of radio frames used for paging in one paging radio frame period, and the number of subframes used for paging in one paging radio frame.
  • the position indication information of the paging subframe is determined according to the following formula:
  • i_s is the location indication information of the paging subframe
  • UE_ID is the ID number of the UE
  • UE_ID IMSI mod 1024
  • IMSI is the international mobile subscriber identity
  • N is the radio frame used for paging in a paging radio frame period. Number of Ns is the number of subframes used for paging in a paging radio frame, mod is the remainder, and floor is rounded down;
  • the paging subframe position is determined according to the correspondence between the location indication information of the paging subframe and the paging subframe position.
  • the first paging location unit determines, in the paging subframe, a location to listen to the paging message TTI in the following manner:
  • the ID number of the UE determines the location of the paging message TTI.
  • the location indication information of the TTI for paging in the paging subframe is determined according to the following formula:
  • J_tti floor[UE_ID/(N*Ns)]mod N_tti,
  • j_tti is the location indication information of the TTI used for paging in the paging subframe
  • UE_ID is the ID number of the UE
  • UE_ID IMSI mod 1024
  • IMSI is the international mobile subscriber identity code
  • N is a paging radio frame period The number of radio frames used for paging
  • Ns is the number of subframes used for paging in a paging radio frame
  • N_tti is the number of TTIs used for paging in a paging subframe
  • mod is taken Yu, floor means round down
  • floor means round down
  • the location of the paging message TTI is determined according to the correspondence between the location indication information of the TTI for paging in the paging subframe and the location of the paging message TTI.
  • the second paging location unit determines, in the paging radio frame, a location to listen to the paging message TTI by:
  • the location of the paging message TTI is determined based on the ID number of the UE, the number of radio frames used for paging in a paging radio frame period, and the number of TTIs used for paging in a paging radio frame.
  • the location indication information of the TTI for paging in the radio frame is determined according to the following formula:
  • I_tti floor(UE_ID/N)mod Ntti,
  • i_tti is the location indication information of the TTI used for paging in the radio frame
  • UE_ID is the ID number of the UE
  • UE_ID IMSI mod 1024
  • IMSI is the international mobile subscriber identity code
  • N is used for one paging radio frame period. The number of radio frames that are paged, Ntti is the number of TTIs used for paging in a paging radio frame, mod is the remainder, and floor is rounded down;
  • the location of the paging message TTI is determined according to the correspondence between the location indication information of the TTI for paging in the radio frame and the location of the paging message TTI.
  • the device for reducing the paging message TTI further includes:
  • the capability module is configured to: determine whether the UE and/or the network side device supports a predetermined TTI.
  • the capability module determines, by the following manner, whether the capability of the UE to support a predetermined TTI is:
  • Querying the UE attach procedure or the tracking area update process determines whether the UE supports the listening capability of the predetermined TTI.
  • the capability module determines whether the network side device supports the predetermined TTI monitoring capability by:
  • Whether the network side device supports the paging capability of the predetermined TTI is determined by whether the system information broadcast (SIB) message includes the paging information of the predetermined TTI.
  • SIB system information broadcast
  • the device for reducing the paging message TTI further includes:
  • the triggering module is configured to: trigger the network side device to send a paging message by using the predetermined TTI.
  • the embodiments of the present invention propose to transmit a paging message on a PDSCH of less than 1 millisecond TTI to shorten the transmission delay and reduce the power consumption required by the UE to listen to the paging message.
  • Solution 1 As shown in FIG. 3, the location that can be used to transmit the paging message is determined in three steps.
  • the paging radio frame is determined, then the paging subframe position is determined in the paging radio frame, and finally the location of the paging message TTI is determined in the paging subframe.
  • Step 301 Determine a paging radio frame (PF).
  • the method for determining a paging radio frame (PF) is: according to the ID information of the UE, the paging radio frame period (Paging Cycle) of the paging message, and the number of radio frames used for paging in a paging radio frame period. to make sure.
  • an SFN System Frame Number
  • PF paging radio frame
  • T is the paging radio frame period of the paging message (Paging Cycle);
  • N is the number of radio frames used for paging within a paging radio frame period.
  • Step 302 Determine a paging subframe position (PO) in the paging radio frame.
  • the method for paging the subframe position is: determining according to the ID information of the UE, the number of radio frames used for paging in a paging radio frame period, and the number of subframes used for paging in a paging radio frame. .
  • the paging subframe location information of the UE is obtained according to the following formula:
  • I_s is the location indication information of the subframe used for paging, and the location of the downlink subframe used for paging has a certain correspondence, and the location of the downlink subframe used for paging is represented by the subframe number;
  • N is the number of radio frames used for paging in a paging radio frame time
  • Ns is the number of subframes used for paging in a paging radio frame (PF).
  • the paging subframe position can be obtained according to the paging subframe position (PO, represented by the subframe number) and the correspondence table of i_s.
  • the correspondence table is:
  • Step 303 Determine the location of the paging message TTI in the paging subframe.
  • the method for determining the location of the paging TTI in the paging subframe is: according to the ID information of the UE, the number of radio frames used for paging in one paging radio frame period, and paging in one paging radio frame. The number of subframes and the number of TTIs used for paging in a paging subframe are determined.
  • the location information of the paging message TTI of the UE in the paging subframe is obtained by using the following formula:
  • J_tti floor[UE_ID/(N*Ns)]mod N_tti,
  • J_tti is the location indication information of the TTI for paging in the paging subframe, j_tti and the TTI for the paging message have a determined correspondence, and the TTI for the paging message is represented by the TTI number, and the TTI number is one.
  • N_tti is the number of TTIs used for paging in a subframe.
  • the value of the TTI can be fixed according to the protocol. For example, the maximum number of TTIs of the PDSCH that can be included in a TTI of less than 1 millisecond can be included in a specific subframe.
  • each bit of the bitmap sequentially represents each TTI in the subframe, and the corresponding TTI can be used for paging and can not be used for paging, and is represented by different values. In this case, one subframe can be used for searching.
  • the number of TTIs of the call is N_tti, and the number of bits in the bitmap indicating that the corresponding TTI can be used for paging (when 1 is used to indicate that the corresponding TTI can be used for paging, that is, the number of 1 in the bitmap);
  • N is the number of radio frames used for paging in the paging radio frame period
  • Ns is the number of subframes used for paging in a paging radio frame
  • the location of the TTI for the UE to listen for the paging message can be determined.
  • a UE may have one or more locations of TTIs that listen for paging in one subframe.
  • the location of the TTI for paging may be obtained based on the mapping relationship between the numbers of j_tti, N_tti, and TTI, or may be determined based on j_tti and a bitmap of TTIs available for paging in one subframe.
  • Each bit of the bitmap sequentially represents each TTI in the subframe, and the corresponding TTI can be used for paging and is not available for paging with different values.
  • the bitmap can be broadcast to the UE through a system broadcast message.
  • Solution 2 As shown in FIG. 4, the location where the paging message can be transmitted is determined in two steps.
  • the paging radio frame is determined, and then the location of the paging message TTI is determined directly in the paging radio frame.
  • Step 401 Determine a paging radio frame (PF).
  • the method for determining a paging radio frame is the same as the method for determining a paging radio frame in the scheme 1.
  • Step 402 Determine a paging message TTI location in the paging radio frame.
  • the method for determining the location of the paging message TTI in the paging radio frame is: according to the ID information of the UE, the number of radio frames used for paging in a paging radio frame period, and a paging radio frame for searching The number of TTIs to call is determined.
  • the location information of the paging TTI of the UE in the paging radio frame is obtained by using the following formula:
  • I_tti floor(UE_ID/N)mod Ntti,
  • I_tti is the location indication information of the TTI for paging in the radio frame, i_tti has a certain correspondence with the TTI for paging in one radio frame, and the TTI for paging is represented by the TTI number, and the TTI number is one. The number of all TTIs in the radio frame starting from 0 in sequence;
  • N is the number of radio frames used for paging in a paging radio frame period
  • Ntti is the number of TTIs used for paging in a paging radio frame (PF). It can be fixed according to a certain value according to the protocol, or can be obtained through direct configuration of the network (note that the TTI that can be included in the radio frame cannot be exceeded. Or the maximum number of times; or, according to a bitmap configured by the network side to indicate whether the corresponding TTI is used to transmit a TTI, each bit of the bitmap sequentially represents each TTI in the radio frame. The corresponding TTI can be used for paging and can not be used for paging, and is represented by different values.
  • the number of TTIs that can be used for paging in a radio frame is Ntti, and the corresponding TTI can be used in the bitmap.
  • the number of bits of the page (when 1 is used to indicate that the corresponding TTI can be used for paging, it is the number of 1s in the bitmap).
  • the location of the TTI for the UE to listen to the paging message can be determined.
  • a UE may have one or more locations of TTIs that listen for pages in a radio frame.
  • the location of the TTI used for paging can be obtained based on the mapping relationship between the numbers of i_tti, Ntti, and TTI. It can also be determined from the bitmap of i_tti and the TTI available for paging in a radio frame. Each bit of the bitmap represents each TTI in the radio frame in turn, and the corresponding TTI can be used for paging and not available for paging with different values.
  • the bitmap can be broadcast to the UE through a system broadcast message.
  • the PDSCH transmission paging message using a TTI less than 1 millisecond includes, but is not limited to, the following triggering method:
  • Method 1 According to UE capability triggering, that is, when the UE capability supports paging with less than 1 millisecond TTI and the eNodeB also supports paging with less than 1 millisecond TTI, paging with less than 1 millisecond TTI can be used.
  • UE capabilities can be learned during the UE Attach process or Tracking Area Update (TAU) process. Whether the eNodeB supports a TTI less than 1 millisecond TTI can be known by whether the SIB message carries paging related information less than 1 millisecond TTI.
  • TAU Tracking Area Update
  • Method 2 trigger according to the UE-specific indication initiated by the UE, that is, if the eNodeB supports small For paging of 1 millisecond TTI, while the UE carries information related to paging of less than 1 millisecond TTI through the Attach or TAU procedure, a paging of less than 1 millisecond TTI may be used.
  • the information related to the paging of the UE that is less than 1 millisecond TTI carried in the Attach or TAU process is distinguished from the capability indication, and may include, but is not limited to, a specific TTI value used by a UE with a PTI less than 1 millisecond TTI. Wait.
  • Whether the eNodeB supports a TTI less than 1 millisecond TTI can be known by whether the SIB message carries paging related information less than 1 millisecond TTI.
  • whether to use paging less than 1 millisecond TTI is determined according to UE capabilities and eNodeB capabilities.
  • FIG. 5 is a schematic diagram of a signaling flow according to the embodiment.
  • Step 501 The UE capability query (Capability Enquiry) query is used to determine whether the UE supports the Paging capability of the TTI less than 1 millisecond during the UE attach process or the Tracking Area Update (TAU) process.
  • Capability Enquiry Capability Enquiry
  • Step 502 The UE receives the Paging information of the TTI less than 1 millisecond broadcasted in the System Information Block (SIB) and the legacy Paging information (Paging information of the version before the 3Gpp release 13 (version 13));
  • SIB System Information Block
  • legacy Paging information Paging information of the version before the 3Gpp release 13 (version 13)
  • Step 503 If the network side finds that the UE capability does not support the Paging capability of the TTI less than 1 millisecond, or if the SIB message received by the UE does not have the Paging information of the TTI less than 1 millisecond, the UE and the base station (eNodeB) both use the legacy UE. (The UE of the 3Gpp release 13 version) determines the location of the paging location and the legacy paging parameter determines the location of the paging message; otherwise the UE and the eNodeB determine the location of the listening paging message according to the following method:
  • Step 1 Determine that the UE can listen to the radio frame (PF) of the Paging, that is, the SFN (System Frame Number) that satisfies the following formula as the paging radio frame (PF):
  • T is the paging period of the paging message. If the Paging message of the TTI of less than 1 millisecond in the broadcast message carries the default paging period (default Paging Cycle), the Paging message corresponding to the TTI of less than 1 millisecond is used. Default Paging Cycle, otherwise the default Paging Cycle in the legacy Paging message is used;
  • Step 2 Obtain paging location information of the UE according to the following formula:
  • I_s is the location indication information of the downlink subframe used for paging, and the location of the downlink subframe that can be used for paging has a certain correspondence, and the location of the downlink subframe used for paging is represented by the subframe number. ;
  • Step 3 Determine the location for Paging in a radio frame according to the following principles:
  • J_tti floor[UE_ID/(N*Ns)]mod N_tti,
  • J_tti indicates the number of the TTI used for Paging in a subframe, and the value ranges from 0 to N_tti-1.
  • N_tti is the number of TTIs that can be used for paging in a subframe. It can be determined according to the length of the TTI. If the Paging of 0.5ms TTI is supported, N_tti can be 1 or 2, for example, 2 in FDD mode, and TDD mode.
  • the special subframe including the downlink pilot time slot (DwPTS)/guard interval (GP)/uplink pilot time slot (UpPTS) is 1; if the TTI of 1 OFDM symbol length is supported, the value range of N_tti will be Bigger.
  • N_tti may also be included in the SIB message less than 1
  • the TTI Paging message of the millisecond is determined by the network side according to the TTI information. However, it is possible that the value of the N_tti configured in the SIB message is greater than the number of TTIs that can be carried in a certain subframe. The number of TTIs is subject to change.
  • the number of the TTIs for the paging of the UE in the specific paging subframe can be obtained according to the mapping relationship table of the j_tti and the TTI, where the TTI number is all the TTIs in a subframe from 0.
  • the UE indicates a UE-specific DRX Parameter for Paging of a TTI of less than 1 millisecond through an Attach or TAU procedure, and a Paging-specific parameter of a TTI of less than 1 millisecond is configured in the SIB message.
  • FIG. 7 is a schematic diagram of a signaling flow according to the embodiment.
  • Paging information including Paging Cycle, nB and corresponding TTI information
  • legacy Paging information Paging information before 3Gpp release 13 version of TTI broadcasted in a System Message (SIB).
  • SIB System Message
  • Step 701 The UE reports a Paging UE for a PTI of less than 1 millisecond by using an Attach or Tracking Area Update (TAU) procedure to indicate Paging using a TTI less than 1 millisecond, including
  • TAU Attach or Tracking Area Update
  • the Paging Cycle information may also include corresponding TTI information of the PDSCH that transmits the Paging message.
  • Step 702 In the case that the network side eNodeB learns that the UE needs to use the Paging of the TTI less than 1 millisecond through the Attach or TAU procedure in step 701, and also carries the Paging information of the TTI less than 1 millisecond in the SIB message, The UE and the eNodeB obtain the radio frame (PF) and the subframe information (PO) that the UE can listen to, and the location of the TTI that finally listens to the Paging, according to the method for determining the paging location in the first embodiment.
  • PF radio frame
  • PO subframe information
  • the Paging cycle used in the calculation process is the Paging Cycle in the Paging information of the TTI less than 1 millisecond in the SIB message and the UE specific in the Paging for the TTI less than 1 millisecond reported by the UE.
  • the nB used in the calculation process is nB in the Paging information of the TTI less than 1 millisecond.
  • the UE indicates the UE Specific DRX Parameter for the Paging of the TTI less than 1 millisecond through the Attach or TAU procedure, and the Paging and legacy UE Paging related parameters of the TTI less than 1 millisecond are not distinguished in the SIB message.
  • FIG. 8 is a schematic diagram of a signaling flow according to the embodiment.
  • TTI Paging Broadcasting Paging information supporting TTIs less than 1 millisecond in System Message (SIB) (just an indication, if there are multiple Pagings of TTI less than 1 millisecond, additional TTI is needed to distinguish between less than 1 millisecond supported. TTI Paging) and legacy Paging information (Paging information before 3Gpp release 13).
  • SIB System Message
  • Step 801 The UE reports a Paging UE for a PTI of less than 1 millisecond by using an Attach or Tracking Area Update (TAU) procedure to indicate Paging using a TTI less than 1 millisecond, including
  • TAU Attach or Tracking Area Update
  • the Paging Cycle information may also include corresponding TTI information of the PDSCH that transmits the Paging message.
  • Step 802 In the case that the network side eNodeB learns that the UE needs to use the PTI of less than 1 millisecond TTI through the Attach or TAU procedure in step 801, and also carries the Paging information of the TTI less than 1 millisecond in the SIB message, The UE and the eNodeB obtain the radio frame (PF) and the subframe information (PO) that the UE can listen to, and the location of the TTI that finally listens to the Paging, according to the method for determining the paging location in the first embodiment.
  • PF radio frame
  • PO subframe information
  • the Paging cycle used in the calculation process is the default Paging Cycle in the legacy Paging information in the SIB message and the Paging cycle in the UE Specific DRX Parameter of the Paging for the TTI of less than 1 millisecond reported by the UE. Smaller value.
  • the nB used in the calculation process is sent by the network side to the nB in the legacy Paging information of the UE by using a broadcast message.
  • the UE sends only less than 1 millisecond by using the Attach or TAU procedure.
  • the TTI's Paging indication and uses the Paging-specific parameters of the TTI less than 1 millisecond to calculate the location of the Paging.
  • FIG. 9 is a schematic diagram of a signaling flow according to the embodiment.
  • Paging information including Paging Cycle, nB, and corresponding TTI information
  • legacy Paging information Paging information before the 3Gpp release 13 version of the TTI broadcasted in the System Information Block (SIB).
  • SIB System Information Block
  • Step 901 The UE reports an indication of Paging using a TTI of less than 1 millisecond through an Attach or Tracking Area Update (TAU) process. If the system supports multiple PTIs of TTIs of less than 1 millisecond in different TTI lengths, A specific TTI indication needs to be carried to identify the Paging that is specifically used for a TTI less than 1 millisecond.
  • TAU Tracking Area Update
  • Step 902 In the case that the network side eNodeB learns that the UE needs to use the PTI of less than 1 millisecond TTI through the Attach or TAU procedure in step 901, and also carries the Paging information of the TTI less than 1 millisecond in the SIB message, The UE and the eNodeB obtain the radio frame (PF) and the subframe information (PO) that the UE can listen to, and the location of the TTI that finally listens to the Paging, according to the method for determining the paging location in the first embodiment.
  • the Paging cycle used in the calculation process is the Paging Cycle in the Paging information of the TTI less than 1 millisecond in the SIB message.
  • the nB used in the calculation process takes nB in the Paging information of the TTI of less than 1 millisecond sent by the network side to the UE through a broadcast message.
  • the UE only sends an indication of Paging using a TTI of less than 1 millisecond through the Attach or TAU procedure, and the Paging and legacy UE Paging related parameters of the TTI less than 1 millisecond are not distinguished in the SIB message.
  • FIG. 10 is a schematic diagram of a signaling flow according to the embodiment.
  • TTI Paging information of TTI less than 1 millisecond broadcast in System Message (SIB) (just an indication, if there are multiple Pagings of TTI less than 1 millisecond, additional TTI is needed to distinguish between less than 1 millisecond supported.
  • SIB System Message
  • TTI Paging and legacy Paging information (Paging information before 3Gpp release 13).
  • Step 1001 The UE reports an indication of Paging using a TTI of less than 1 millisecond by an Attach or Tracking Area Update (TAU) process. If the system supports multiple PTIs of less than 1 millisecond TTI of different TTI lengths, A specific TTI indication needs to be carried to identify the Paging that is specifically used for a TTI less than 1 millisecond.
  • TAU Tracking Area Update
  • Step 1002 After the network side eNodeB learns that the UE needs to use the Paging of the TTI less than 1 millisecond through the Attach or TAU procedure in the step 1001, and also carries the corresponding Paging information of the TTI less than 1 millisecond in the SIB message.
  • the UE and the eNodeB obtain the radio frame (PF) and the subframe information (PO) that the UE can listen to, and the location of the TTI that finally listens to the Paging, according to the method for determining the paging location in the first embodiment.
  • the Paging cycle used to calculate PF and PO is the default Paging Cycle in the legacy Paging information in the SIB message.
  • the nB used in the calculation process is sent by the network side to the nB in the legacy Paging information of the UE by using a broadcast message.
  • the UE only sends an indication of Paging using a TTI of less than 1 millisecond through the Attach or TAU procedure, and a bitmap of a TTI that can be used for Paging when the Short TTI is included in the SIB, and other less than 1 millisecond. TTI's Paging-specific parameters.
  • FIG. 11 is a schematic diagram of a signaling flow according to the embodiment.
  • Paging information of TTI less than 1 millisecond broadcast in system message SIB, System Information Block (including Paging Cycle, nB and corresponding TTI length, Bitmap information of PTI for Paging, etc.) and legacy Paging information (3Gpp release) Paging information before version 13).
  • SIB System Information Block
  • Step 1101 The UE reports an indication of Paging using a TTI of less than 1 millisecond through an Attach or Tracking Area Update (TAU) process. If the system supports multiple PTIs of less than 1 millisecond TTI of different TTI lengths, A specific TTI indication needs to be carried to identify the Paging that is specifically used for a TTI less than 1 millisecond.
  • TAU Tracking Area Update
  • Step 1102 After the network side eNodeB learns that the UE needs to use the Paging of TTI less than 1 millisecond through the Attach or TAU procedure in step 1101, and simultaneously in the SIB message. In the case of carrying the Paging information of the TTI less than 1 millisecond, the UE and the eNodeB determine the location of the listening paging message according to the following method:
  • the radio frame (PF) and the subframe information (PO) that the UE can listen to Paging are obtained.
  • the Paging cycle used to calculate the PF and the PO is the Paging Cycle in the Paging information of the TTI less than 1 millisecond in the SIB message.
  • the location for Paging in a radio frame can be determined according to the following principles:
  • J_tti floor[UE_ID/(N*Ns)]mod N_tti,
  • J_tti indicates the number of the TTI used for Paging in a subframe, and the value ranges from 0 to N_tti-1.
  • nB its value range is: 4T, 2T, T, T/2, T/4, T/8, T/16, T/3;
  • the TTI number is a number starting from 0 for all TTIs in one subframe.
  • Step 501 Obtain, by using a UE Capability Enquiry query, whether the UE supports the Paging capability of the TTI less than 1 millisecond in the process of the UE Attachment or the Tracking Area Update (TAU).
  • TAU Tracking Area Update
  • Step 502 The UE receives the Paging information and the legacy Paging information of the TTI less than 1 millisecond broadcasted in the System Information Block (SIB).
  • SIB System Information Block
  • Step 503 If the network side finds that the UE capability does not support the Paging capability of the TTI less than 1 millisecond, or if the SIB message received by the UE does not have the Paging information of the TTI less than 1 millisecond, the UE and the eNodeB determine the interception by using the legacy Paging Parameters. The location of the Paging message. Otherwise, both the UE and the eNodeB determine the location of the listening paging message according to the following method:
  • Step 1 the radio frame (PF) that the UE can listen to Paging is obtained. It should be noted that if the Paging message of the TTI of less than 1 millisecond carries the default Paging Cycle and nB, the UE determines the PF according to the two parameters. Otherwise, the default Paging Cycle and nB may be obtained by using the legacy Paging information to determine the PF.
  • Step 2 The location for Paging in a radio frame can be determined according to the following principles:
  • I_tti floor(UE_ID/N)mod Ntti,
  • I_tti is the location indication information of the downlink TTI used for paging in the radio frame, and the correspondence between the i_tti and the TTI that can be used for paging in a radio frame is determined.
  • the TTI that can be used for Paging is represented by a TTI number, and the TTI number is a radio frame. The number of all TTIs starting from 0 in sequence;
  • the nB is sent to the UE by the network side through a broadcast message, and the value ranges from: 4T, 2T, T, T/2, T/4, T/8, T/16, T/32;
  • Ntti is the number of TTIs used for paging in a paging radio frame (PF), which can be determined according to the length of the TTI; if the Paging of 0.5ms TTI is supported, there are 20 TTIs in a radio frame, N_tti The value ranges from 1 to 20. Alternatively, N_tti may also be included in the SIB message less than 1 millisecond.
  • the TTI Paging message of the second is configured by the network side according to the TTI information, for example, Ntti is directly configured to 10.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, the method for implementing the reduced paging message TTI in the foregoing embodiment when the computer executable instructions are executed.
  • each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function.
  • This application is not limited to any specific combination of hardware and software.
  • Embodiments of the present invention provide a method and apparatus for reducing a paging message TTI, which uses a PDSCH with a transmission interval of less than 1 millisecond to transmit a paging message, so that the UE can shorten the paging delay and enable the UE to shorten to the listening paging.
  • the time when the message is activated which in turn reduces the power consumption of the UE.

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Abstract

Un procédé pour réduire un intervalle de temps de transmission de messages de radiomessagerie comprend : la surveillance, à un intervalle de temps de transmission (TTI) prédéfini, de messages de radiomessagerie envoyés par un dispositif sur le côté réseau ; et la détermination de positions pour surveiller le TTI des messages de radiomessagerie, le TTI prédéfini étant inférieur à 1 milliseconde. Au moyen de la solution selon l'invention, un UE peut raccourcir le retard de radiomessagerie et le temps d'activation pour surveiller des messages de radiomessagerie, ce qui permet de réduire la consommation d'énergie de l'UE.
PCT/CN2016/078583 2015-09-17 2016-04-06 Procédé et appareil pour réduire un intervalle de temps de transmission de messages de radiomessagerie Ceased WO2016180106A1 (fr)

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CN201510595713.1 2015-09-17
CN201510595713.1A CN106550435A (zh) 2015-09-17 2015-09-17 一种降低寻呼消息传输时间间隔的方法和装置

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