WO2018028500A1 - Procédé et appareil de planification de transmission en liaison descendante - Google Patents

Procédé et appareil de planification de transmission en liaison descendante Download PDF

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Publication number
WO2018028500A1
WO2018028500A1 PCT/CN2017/095835 CN2017095835W WO2018028500A1 WO 2018028500 A1 WO2018028500 A1 WO 2018028500A1 CN 2017095835 W CN2017095835 W CN 2017095835W WO 2018028500 A1 WO2018028500 A1 WO 2018028500A1
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WIPO (PCT)
Prior art keywords
scheduling
mcch
mtch
subframe
wireless
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PCT/CN2017/095835
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English (en)
Chinese (zh)
Inventor
艾建勋
戴博
陈宪明
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中兴通讯股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • 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 invention relates to the field of narrowband Internet of Things (NB-IoT) and eMTC technologies, and in particular, to a scheduling method and apparatus for implementing single-cell point-to-multipoint downlink transmission in NB-IoT and eMTC.
  • NB-IoT narrowband Internet of Things
  • eMTC eMTC
  • SC-PTM single-cell point-to-multipoint transmission SC-PTM
  • SC-PTM technology is used to implement point-to-multipoint downlink multimedia broadcast multicast (MBMS) services in a single cell.
  • the SC-PTM introduces two logical channels, a single cell multicast control channel SC-MCCH and a single cell multicast transmission channel SC-MTCH.
  • SC-MCCH and SC-MTCH are carried over the physical downlink shared channel PDSCH.
  • the SC-MCCH channel carries control information related to the transmission of the MBMS service, including service identification and scheduling information.
  • the PDSCH carrying the SC-MCCH is dynamically scheduled.
  • the scheduling information of the SC-MCCH channel is indicated in the system message block 20 (SIB20), including a modification period, a repetition period, an offset offset, a first subframe first subframe, and a section length duration that may be scheduled.
  • SIB20 system message block 20
  • SIB20 system message block 20
  • the modification period of the SC-MCCH indicates a boundary where the SC-MCCH message may be modified
  • the SC-MCCH repetition period is a period for scheduling to send an SC-MCCH message
  • the offset refers to the duration of the scheduling start wireless.
  • the frame is offset from the SC-MCCH repetition period starting radio frame by the number of radio frames
  • the first subframe is duration starting from the first radio subframe in the starting radio frame.
  • the length of the Duration is the number of wireless subframes that duration continues.
  • the eNB scrambles the DCI in the physical downlink control channel PDCCH using the SC-RNTI.
  • An SC-MTCH carries an MBMS service data.
  • the scheduling information of the SC-MTCH includes: a scheduling period and a starting offset, a duration time interval OnDurationTimer that may be scheduled, and a length of time (drxInactivityTimerSCPTM) that the UE waits after successfully receiving a downlink data.
  • the eNB can schedule a PDSCH channel of an SC-MTCH carrying a certain MBMS service in any one of the radio subframes specified by the SC-MTCH scheduling information, and the UE successfully receives one of the services.
  • the eNB scrambles the DCI of the PDCCH scheduling the SC-MTCH using the G-RNTI, and each MBMS service is assigned a separate G-RNTI.
  • SC-MCCH and SC-MTCH adopt a dynamic scheduling mechanism, which requires the UE to continue for a period of time.
  • this dynamic scheduling mechanism poses a challenge to the battery consumption of the UE, and in NB-IoT and eMTC, paging messages and systems
  • the message scheduled by the message at a fixed location has a higher priority, and in order to ensure the reception of the UE with enhanced coverage in the NB-IoT and eMTC, the PDCCH scheduling involved in the dynamic scheduling process and the corresponding PDSCH channel scheduling are both It needs to be repeated multiple times and is staggered in the time domain. Therefore, the time required for each dynamic scheduling is longer. Compared with the PDCCH indication and the corresponding PDSCH scheduling in one subframe in the traditional LTE, it is complete in the NB-IoT.
  • the dynamic scheduling requires tens of subframes to repeatedly transmit the PDCCH, and then hundreds of subframes repeatedly transmit the corresponding PDSCH.
  • the length of the time interval for dynamic scheduling of SC-MCCH and SC-MTCH needs to be configured large. It is possible to ensure sufficient sufficient resources to schedule SC-MCCH or SC-MTCH, and the long-term dynamic scheduling time interval greatly increases the power consumed by the UE to monitor the PDCCH.
  • the semi-persistent scheduling mechanism that is, the SC-MCCH and the SC-MTCH are allocated by allocating fixed subframe resources
  • the UE It is necessary to know the semi-statically allocated subframe information allocated to the SC-MCCH and the SC-MTCH, so as not to receive the repeated transmission of the PDCCH or the PDSCH on the subframes when receiving other dynamic scheduling, otherwise the UE may receive the wrong information. And caused the failure to receive dynamic scheduling data last. For example, when the UE receives the paging message, the paging message needs to be repeated 100 times.
  • the eNB schedules on 100 consecutive available wireless subframes.
  • the so-called available wireless subframe is Refers to a valid subframe indicated by the system information SIB2, or a subframe resource other than a static semi-statically allocated subframe of a system message, a physical synchronization signal, a physical broadcast channel, or the like.
  • the semi-static subframe resource is configured for the SC-PTM in the release 14, the UE of the Release 13 does not know the semi-statically configured subframes according to the prior art, and when receiving the repeated transmission of the dynamically scheduled paging message, These sub-frames cannot be effectively avoided, resulting in errors in receiving dynamic scheduling data.
  • the embodiment of the invention provides a resource scheduling method and device, so as to at least solve the problem of the power consumption problem of the UE during dynamic scheduling in the related art.
  • a scheduling method for downlink transmission including: configuring a repetition period of a single-cell multicast control channel SC-MCCH or a scheduling period of a single-cell multicast transmission channel SC-MTCH Dynamic scheduling control signaling interval; the base station sends physical downlink control signaling for scheduling SC-MCCH or SC-MTCH in the dynamic scheduling control signaling interval.
  • a receiving method for downlink transmission including: detecting, by a user equipment UE, a scheduled single cell multicast control channel SC-MCCH or single cell multicast in a dynamic scheduling control signaling interval The downlink control signaling of the transport channel SC-MTCH, wherein the dynamic scheduling control signaling interval is configured in a repetition period of the SC-MCCH or a scheduling period of the SC-MTCH.
  • a scheduling method for downlink transmission including: configuring a repetition period of a single cell multicast control channel SC-MCCH or a scheduling period of a single cell multicast transmission channel SC-MTCH, and Configuring a transmission window in a repetition period of the SC-MCCH or a scheduling period of the SC-MTCH; configuring a wireless subframe set for transmitting the SC-MCCH or SC-MTCH; and a subframe in the wireless subframe set
  • the SC-MCCH or SC-MTCH is transmitted on.
  • a receiving method for downlink transmission where: the user equipment UE is on a wireless subframe set in a transmission period of a SC-MCCH repetition period or an SC-MTCH scheduling period. Receive SC-MTCH data or SC-MCCH message.
  • a scheduling method for downlink transmission including: configuring a repetition period of an SC-MCCH and/or a scheduling period of an SC-MTCH, and performing a repetition period of the SC-MCCH and / or a scheduling window is configured within a scheduling period of the SC-MTCH; scheduling to send SC-MCCH messages or SC-MTCH data within the scheduling window.
  • a method for receiving a downlink transmission includes: receiving, by a user equipment UE, an SC-MCCH message in a scheduling window of a SC-MCCH repetition period and/or a scheduling period of an SC-MTCH Or SC-MTCH data.
  • a method for downlink transmission including: configuring a system information block SIB-x for carrying control information of an SC-PTM, where the content of the SIB-x bearer includes The identity and scheduling information of the current and/or upcoming MBMS service of the cell; the base station indicates the system information block SIB-x to the user equipment UE.
  • a method for receiving a downlink transmission includes: receiving, by a user equipment UE, a system information block SIB-x for carrying control information of an SC-PTM, where the SIB-x
  • the content of the bearer includes the identifier and scheduling information of the current and/or upcoming MBMS service of the cell.
  • a scheduling apparatus for downlink transmission including: a configuration module, configured to perform a repetition period of a single cell multicast control channel SC-MCCH or a single cell multicast transmission channel SC-MTCH
  • the dynamic scheduling control signaling interval is configured in the scheduling period
  • the sending module is configured to send physical downlink control signaling for scheduling the SC-MCCH or the SC-MTCH in the dynamic scheduling control signaling interval.
  • a scheduling apparatus for downlink transmission including: a first configuration module, configured to configure a repetition period of a single cell multicast control channel SC-MCCH or a single cell multicast transmission channel SC a scheduling period of the MTCH, and configuring a transmission window in a repetition period of the SC-MCCH or a scheduling period of the SC-MTCH; a second configuration module configured to configure wireless for transmitting the SC-MCCH or SC-MTCH a set of subframes, configured to send the SC-MCCH or SC-MTCH on a subframe of the set of wireless subframes.
  • a scheduling apparatus for downlink transmission including: a configuration module, configured to configure a repetition period of an SC-MCCH and/or a scheduling period of an SC-MTCH, and in the SC- A scheduling window is configured within a repetition period of the MCCH and/or a scheduling period of the SC-MTCH; and the transmitting module is configured to schedule transmission of the SC-MCCH message or the SC-MTCH data within the scheduling window.
  • a scheduling apparatus for downlink transmission including: a configuration module, configured to configure a system information block SIB-x for carrying control information of an SC-PTM, where the SIB
  • the content of the -x bearer includes the identifier and scheduling information of the current and/or upcoming MBMS service of the cell;
  • the indication module is configured to indicate the system information block SIB-x to the user equipment UE.
  • the dynamic scheduling control signaling interval is configured in the scheduling period of the SC-MCCH or the scheduling period of the SC-MTCH, so that the UE only needs to detect the PDCCH in the dynamic scheduling control signaling interval configured by the base station.
  • FIG. 1 is a schematic diagram of a scheduling manner of an SC-MCCH channel in LTE
  • FIG. 2 is a schematic diagram of a scheduling manner of an SC-MTCH channel in LTE
  • FIG. 3 is a diagram showing an example of configuring a dynamic scheduling control signaling interval according to Embodiment 1 of the present invention
  • FIG. 7 is a third example of a second SC-MTCH scheduling manner according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a configuration of a scheduling window according to Embodiment 3 of the present invention.
  • FIG. 9 is a diagram showing an example of a scheduling manner according to Embodiment 3 of the present invention.
  • FIG. 10 is a diagram showing an example of a second scheduling method according to Embodiment 3 of the present invention.
  • the SC-MCCH and/or the SC-MTCH are scheduled as follows.
  • the dynamic scheduling control signaling interval D1 is configured in the SC-MCCH repetition period or the scheduling period of the SC-MTCH.
  • the base station sends, in the dynamic scheduling control signaling interval D1, physical downlink control signaling for scheduling SC-MCCH or SC-MTCH, that is, transmitting SC-MCCH dedicated SC-RNTI or SC-MTCH G-s on the PDCCH channel.
  • the DCI scrambled by the RNTI and continuously transmitted N1 times in the available wireless subframes in this interval.
  • the UE continuously detects the PDCCH in the effective subframe of the dynamic scheduling control signaling transmission interval D1, and receives the SC-MCCH or the SC according to the scheduling information indicated by the received SC-RNTI or the G-RNTI scrambled DCI. -MTCH.
  • the available radio subframe refers to a valid downlink radio subframe indicated in the cell system information block SIB1.
  • the number of transmissions N1 is indicated in the system message or other signaling, or by agreement.
  • the SC-MSCI scrambled DCI indicates scheduling information of the SC-MCCH
  • the G-RNTI scrambled DCI indicates scheduling information of the bearer SC-MTCH.
  • the length of the repetition period of the SC-MCCH, or the length of the SC-MTCH scheduling period is a paging occasion (PO) interval length configured by the system, that is, a time between two consecutive POs. An integer multiple of the interval.
  • PO paging occasion
  • the specific configuration method of the dynamic scheduling control signaling interval D1 includes, but is not limited to, one of the following modes:
  • D1 start radio frame offset and the D1 start radio subframe sequence number are optional parameters. If the default radio diagnostic offset is initiated, it indicates that the starting radio frame of D1 is the first radio frame of the repetition period or scheduling period.
  • sequence number of the starting wireless subframe is the default, the sequence number of the starting wireless subframe of the D1 is the first valid wireless subframe in the initial radio frame.
  • the UE after the UE successfully receives an SC-MTCH scheduling, the UE continues to detect the PDCCH channel for a period of time to receive the PDCCH signaling for scheduling the subsequent SC-MTCH.
  • the UE it is not within the scope of the invention to proceed, nor does it obstruct the facts of the method.
  • the UE only needs to detect the PDCCH in the dynamic scheduling control signaling interval configured by the base station to find out whether there is dynamic scheduling of the SC-MCCH or the SC-MTCH in this period. If not detected, the UE does not need to detect the PDCCH in a subframe other than the interval of D1, thus saving the battery consumption of the UE and achieving the purpose of energy saving in dynamic scheduling.
  • a part of the wireless subframe is indicated as being an invalid subframe in the SIB1.
  • the partial wireless subframe is not indicated as a valid wireless subframe by indicating a cell in the SIB1 indicating a valid wireless subframe.
  • the set of partial subframes is referred to as a subframe set A.
  • subframes in the subframe set A are used for SC-MCCH and/or SC-MTCH scheduling, and the subframe set for SC-MCCH and/or SC-MTCH tone is used. Called the subframe set B.
  • the system performs scheduling of SC-MCCH and SC-MTCH in subframe set B.
  • the subframe set B is the subframe set A.
  • the scheduling is dynamic scheduling, that is, the scheduling information that carries the SC-MTCH or the SC-MCCH is supported by the PDCCH signaling, or the semi-persistent scheduling, that is, the scheduling of the PDCCH signaling is not required, and the base station directly in the above-mentioned subframe set B Send SC-MTCH data or SC-MCCH message.
  • the subframe set B for SC-MCCH scheduling and the subframe set B for SC-MTCH scheduling may be independently different subframe sets, and the base stations are separately configured by signaling.
  • the base station transmits one or more repetitions of the subframes of the subframe set B within the transmission window within the SC-MCCH repetition period, wherein one repetition of the SC-MCCH is in one or more wireless sub-frames Send on the frame.
  • the UE receives the repeated transmission of the SC-MCCH on the subframe of the subframe set B in the transmission window within the SC-MCCH repetition period.
  • the scheduling process for the SC-MTCH includes the following steps:
  • SC-MTCHs can share the same scheduling period, and different SC-MTCH channels configure different transmission windows. As shown in FIG. 5, SC-MTCH-1 and SC-MTCH-2 respectively configure different transmission windows.
  • SC-MTCHs share the same transmission window, but different subframe sets B are respectively configured.
  • SC-MTCH-1 and SC-MTCH-2 are respectively configured with different subframe sets B1 and B2.
  • the length of the sending window is less than or equal to the length of the SC-MTCH scheduling period, that is, the sending window occupies part or all of the length of the SC-MTCH scheduling period.
  • the SC-MCCH and the multiple SC-MTCs may share the same scheduling period or repetition period length, but allocate different transmission windows for different channels, and configure the length of the transmission window for different SC-MTCHs.
  • the transmission windows of these channels are sequentially arranged in the scheduling period in the order indicated by the signaling, as shown in FIG. 7, wherein the transmission window lengths of SC-MTCH-1 to SC_MTCH-3 are L1, L2 and L3, respectively.
  • the UE receives the required SC-MTCH data on the subframe of the subframe set B in the transmission window within the SC-MTCH scheduling period.
  • the above-mentioned system information block is a system information block for indicating SC-PTM information, for example, a system information block including SC-MCCH scheduling information.
  • Specific methods for configuring subframe sets A and B include:
  • the method of configuring the subframe set A configuring a valid subframe of the cell in the cell DownlinkBitmap in the SIB1, setting a configuration period, and a bitmap of the valid subframe in the period, where the subframe set A is in the During the configuration period, the valid subframe of the configuration and the fixed-occupied wireless subframe of the protocol are excluded, for example, the wireless subframe occupied by the channel such as NSSS/NPSS/PBCH/SIB1, and the subframe A is excluded from the subframe.
  • a collection of outer sub-frames For example, the configuration period is 10 ms, and subframes #0 to #2, #4 to #9 are valid subframes. Then the wireless subframe #3 is an invalid subframe. That is, the above-mentioned subframe set A is the subframe #3 in the period of each 10 ms radio frame.
  • the subframe set A is an invalid wireless subframe in the cell.
  • An invalid wireless subframe refers to a wireless subframe that is not configured by the SIB1 message as a valid wireless subframe and that is not occupied by a channel that is fixed by the protocol.
  • the channel of the fixed-occupied wireless subframe that is agreed by the protocol includes: a primary synchronization channel PSS, a secondary synchronization channel SSS, a physical broadcast channel PBCH, and a wireless subframe that schedules SIB1.
  • the method of configuring the subframe set B is to indicate the configuration information of the B in the system information block or the SC-MCCH message, including the configuration period and the bitmap of the subframe included in the subframe set B in the configuration period.
  • the configuration period of the subframe set B is 40 ms
  • the subframe bitmap indicates that the fourth and the 14th wireless subframes of the 40 wireless subframes are the wireless subframes of the subframe set B.
  • the network may configure, for the UE, resources required for transmitting SC-MCCH and SC-MTCH channels of the SC-PTM, and schedule the SC-PTM channels semi-statically or dynamically on the resources.
  • resources required for transmitting SC-MCCH and SC-MTCH channels of the SC-PTM and schedule the SC-PTM channels semi-statically or dynamically on the resources.
  • the repetition period of the SC-MCCH, and/or the scheduling period of the SC-MTCH are configured.
  • N3 scheduling windows are configured in the repetition period of the SC-MCCH and/or the scheduling period of the SC-MTCH.
  • the interval WI between the scheduling windows is configured, and WI is the interval between the start positions of multiple scheduling windows in the same repetition period.
  • the offset WO of the first scheduling window in the scheduling window relative to the repetition period or the starting position of the scheduling period is configured. If the WO is not configured, the first scheduling window is compared with the repetition period or the scheduling period. The offset is 0.
  • the length WL of the scheduling window is configured, and the network schedules sending the SC-MCCH or the SC-MTCH in the scheduling window.
  • the starting point of the scheduling window should be understood as the starting point of the scheduling, that is, the length of the window is not limited, and the scheduling resources are scheduled from the scheduling. Start with the first available wireless sub-frame starting at the beginning.
  • the scheduling and sending the SC-MCCH in the scheduling window includes one of the following manners, and is not limited to the following manners:
  • N4 of the SC-MCCH in the scheduling window 1. Configure the number of repetitions N4 of the SC-MCCH in the scheduling window, and start a complete repetition of the N4 SC-MCCH messages starting from the first available wireless subframe of the scheduling window. For example, if a complete SC-MCCH message repetition requires 8 wireless subframes to complete, then N4 8 wireless subframes are continuously occupied in the scheduling window.
  • the SC-MCCH message transmits one or more repetitions of the SC-MCCH according to the repetition mode in the scheduling window.
  • the repeating mode includes: repeating, sending, by the N-th radio frame, a repetition of the SC-MCCH message, where the base station starts, in the scheduling window, repeats the first available radio frame of the radio frame indicated by the mode, and continuously occupies the available wireless sub- Frame to send a complete SC-MCCH message.
  • the scheduling and sending the SC-MTCH in the scheduling window includes one of the following modes, but is not limited to the following manners:
  • the available wireless subframes in all scheduling windows in the scheduling period of the SC-MTCH are grouped into scheduling resources of the SC-MTCH, and the base station continuously transmits the SC-MTCH bearer on the scheduling resource.
  • MBMS business data Each SC-MTCH data is repeatedly transmitted N5 times, that is, N5 available wireless subframes in the scheduling resource are occupied, and the N5 is indicated to the UE by protocol agreement or signaling.
  • the base station indicates or the protocol stipulates that each N6 of the scheduling windows is used to send multiple repetitions of one SC-MTCH data, that is, all available wireless subframes in every N6 scheduling windows are used for sending. A repetition of an SC-MTCH data.
  • the N6 is indicated to the UE by protocol agreement or signaling.
  • the length of the interval WI of the adjacent two scheduling windows in the same SC-MCCH repetition period or the SC-MTCH scheduling period is an integer multiple of the paging occasion interval length.
  • the network side indicates the scheduling information of the foregoing SC-MCCH to the UE by using a system message.
  • the UE receives the SC-MCCH message according to the SC-MCCH scheduling information.
  • the above-mentioned available wireless subframes refer to the valid wireless subframes indicated in the cell SIB1, and are not occupied by the scheduling of the system message SI message, and are not occupied by the channel of the fixed wireless subframe occupied by the protocol.
  • the channels occupying the fixed wireless subframe include a primary synchronization channel PSS, a secondary synchronization channel SSS, a physical broadcast channel PBCH, and scheduling of SIB1.
  • the SC-MCCH or SC-MTCH channel that needs to be continuously scheduled can be transmitted in a small subframe resource, thereby avoiding the impact on the R13 UE and achieving the same.
  • the purpose of repeatedly transmitting SC-MCCH and SC-MTCH data is repeated.
  • the protocol defines a new system information block SIB-x for carrying control information of the SC-PTM.
  • the content carried by the SIB-x includes: identification and scheduling information of the MBMS (SC-PTM) service being and/or about to be transmitted in the cell, and/or neighboring area information of the MBMS service.
  • SC-PTM MBMS
  • the modification period and the repetition period of the SIB-x are configured, or the modification period and the repetition period of the SIB-x reuse other system messages.
  • the SIB-x forms a system information message SI message, either alone or with other SIBs.
  • the base station configures a system message repetition mode for the SI message, and performs repeated transmission according to the system message repetition mode.
  • the SIB-x update follows one or more of the following rules:
  • the change of the SIB-x content does not affect the update of the value tag of the SI message in the SIB1, that is, the SIB-x content change does not trigger the update of the value tag of the SI message containing the SIB-x, or the SI containing the SIB-x is not set.
  • the value tag of the message does not affect the update of the value tag of the SI message in the SIB1, that is, the SIB-x content change does not trigger the update of the value tag of the SI message containing the SIB-x, or the SI containing the SIB-x is not set.
  • the change of the SIB-x content does not notify the UE by the paging message.
  • the SIB-x update follows the following rules:
  • the change of the SIB-x content indicates the UE by a change notification dedicated to the SIB-x or the system message SI message containing the SIB-x.
  • the change notification is sent through the PDCCH channel before the SIB-x or the SIB-x-containing system message SI message is transmitted through the PDCCH signaling DCI. That is, in the repeating period or modification week of the SIB-x or the SI message including the SIB-x, scheduling the transmission in the wireless subframe before scheduling the SIB-x or the SIB-x SI message includes the The PDCCH signaling DCI of the change notification.
  • the SIB-x update follows the following rules:
  • the SIB-x or the change of the SI message containing the SIB-x indicates the UE by paging. And in the paging message The SIB-x content has changed.
  • the paging message includes a form indicated by PDCCH signaling DCI or a paging message transmitted through a PDSCH channel.
  • the UE that needs to receive the MBMS service in the SC-PTM mode actively obtains the update of the SIB-x, that is, the UE actively receives the SIB-x or includes the SIB-x in the modification period of each SIB-x or the SI message including the SIB-x. SI message.
  • the SC-MCCH content is transmitted through the SIB-x, and the semi-persistent scheduling of the SC-MCCH is implemented, and the impact on the R13 UE is avoided, because the R13 UE can pass the existing mechanism for receiving the SI message.
  • the sub-frame resources occupied by the SIBx are avoided.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
  • a device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and will not be described again.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
  • Embodiments of the present invention also provide a storage medium storing program code for executing the embodiments of the foregoing.
  • the above storage medium may be set to store program code for performing the following steps.
  • the foregoing storage medium may include, but not limited to, a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • mobile hard disk a magnetic disk
  • magnetic disk a magnetic disk
  • optical disk a variety of media that can store program code.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.

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Abstract

La présente invention concerne un procédé et un appareil de planification de transmission en liaison descendante, ledit procédé comprenant : la configuration d'un intervalle de signalisation de commande de planification dynamique, dans une période de répétition d'un canal de commande de multidiffusion de cellule unique (SC-MCCH) ou d'une période de planification d'un canal de transmission de multidiffusion de cellule unique (SC-MTCH) ; et l'émission, par une station de base, d'une signalisation de commande de liaison descendante physique pour planifier le SC-MCCH ou le SC-MTCH à l'intérieur de l'intervalle de signalisation de commande de planification dynamique. La solution selon la présente invention consiste à seulement détecter, par un UE, un canal physique de contrôle descendant (PDCCH) dans un intervalle de signalisation de commande de planification dynamique, configuré par une station de base en vue de découvrir si ladite période présente ou non une planification dynamique du SC-MCCH ou du SC-MTCH sans nécessiter la détection dans des sous-trames à l'extérieur dudit intervalle, ce qui permet de résoudre le problème de la consommation d'énergie d'un UE dans une planification dynamique et d'assurer l'économie d'énergie de l'UE.
PCT/CN2017/095835 2016-08-11 2017-08-03 Procédé et appareil de planification de transmission en liaison descendante WO2018028500A1 (fr)

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