WO2021197224A1 - Method for scheduling physical downlink shared channel, and network device and terminal device - Google Patents

Method for scheduling physical downlink shared channel, and network device and terminal device Download PDF

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Publication number
WO2021197224A1
WO2021197224A1 PCT/CN2021/083252 CN2021083252W WO2021197224A1 WO 2021197224 A1 WO2021197224 A1 WO 2021197224A1 CN 2021083252 W CN2021083252 W CN 2021083252W WO 2021197224 A1 WO2021197224 A1 WO 2021197224A1
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pdsch
dci
different
pdschs
rnti
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PCT/CN2021/083252
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French (fr)
Chinese (zh)
Inventor
李娜
潘学明
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维沃移动通信有限公司
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Publication of WO2021197224A1 publication Critical patent/WO2021197224A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling

Definitions

  • the present invention relates to the field of communications, in particular to a physical downlink shared channel (PDSCH) scheduling method, network equipment and terminal equipment.
  • PDSCH physical downlink shared channel
  • LTE broadcast multicast transmission it supports multicast broadcast single frequency network (Multimedia Broadcast multicast service Single Frequency Network, MBSFN) mode multicast broadcast service (Multimedia Broadcast multicast service, MBMS) transmission and single cell point-to-multipoint (Single) -Cell Point-to-Multipoint, SC-PTM) multicast service transmission.
  • MBSFN Multimedia Broadcast multicast service Single Frequency Network
  • MBMS Multimedia Broadcast multicast multicast service
  • SC-PTM single cell point-to-Multipoint
  • SC-PTM single cell point-to-Multipoint
  • MBSFN mode cells in the same MBSFN area synchronously send the same broadcast service, which is convenient for user equipment (User Equipment, UE for short) to receive.
  • the control information (control channel parameters and service channel parameters, and scheduling information, etc.) and data information of the MBMS service are sent in a broadcast mode, so that both idle and connected UEs can receive the MBMS service, and the MBMS data information Only sent in MBSFN subframes.
  • SC-PTM is a multicast transmission method standardized after the MBMS service. The biggest difference from the MBSFN method is that it is only scheduled for transmission in a single cell. It is determined by the Group-Radio Network Temporary Identity (G-RNTI). ) To perform business scheduling.
  • G-RNTI Group-Radio Network Temporary Identity
  • the scheduling information is notified by the Physical Downlink Control Channel (PDCCH) scrambled by G-RNTI.
  • the data part is sent in multicast mode, which is equivalent The interested UE monitors the G-RNTI to obtain data scheduling and then receives it.
  • PDCCH Physical Downlink Control Channel
  • each downlink control information corresponds to a Radio Network Temporary Identity (RNTI), and after the DCI performs a cyclic redundancy check (CRC), the corresponding RNTI pair is used CRC scrambles.
  • the RNTI that scrambles the DCI and CRC includes C-RNTI, S-RNTI, MCS-C-RNTI, TC-RNTI, P-RNTI, and SI-RNTI. Different RNTIs have different purposes.
  • C-RNTI and MCS-C-RNTI are used for scheduling unicast physical downlink shared channel (PDSCH) transmission or physical uplink shared channel (PUSCH) resource allocation
  • CS-RNTI is used Schedule SPS PDSCH or type 2 CG PUSCH during activation or retransmission.
  • TC-RNTI is used for retransmission scheduling of mgs3PUSCH.
  • DCI ⁇ CRC attachment (using RNTI to scramble the CRC) ⁇ channel coding ⁇ rate matching ⁇ scrambling ⁇ modulation ⁇ mapping to physical resources.
  • the RNTI will be used to scramble the CRC after the CRC check.
  • PDSCH transmission For PDSCH transmission, a series of processing is also performed.
  • the processing flow for PDSCH transmission is as follows:
  • Downlink Shared Channel (DL-SCH) ⁇ CRC ⁇ channel coding ⁇ rate matching ⁇ scrambling ⁇ modulation ⁇ layer mapping ⁇ antenna port mapping ⁇ mapping to virtual resource block ⁇ mapping to physical resources.
  • DL-SCH Downlink Shared Channel
  • the scrambling sequence is initialized according to the RNTI associated with the PDSCH, and the RNTI associated with the PDSCH is the same as the corresponding RNTI for scheduling or activating the DCI.
  • the unicast PDSCH uses specific DCI scheduling, and the UE performs feedback according to the indication information in its DCI. For example, PUCCH transmission resources and transmission power. In this way, different UEs can be allocated different PUCCH resources, resource conflicts can be avoided, and the received power of the uplink transmission of different UEs at the receiving end can be made the same as possible.
  • the group common DCI is used to schedule the multicast PDSCH, but the multicast PDSCH does not support HARQ-ACK feedback and retransmission.
  • HARQ-ACK feedback or retransmission can improve the reliability of broadcast/multicast transmission. Therefore, how to schedule broadcast or multicast PDSCH and support HARQ-ACK feedback is a technical problem that needs to be solved at present.
  • the purpose of the embodiments of the present invention is to provide a PDSCH scheduling method, network equipment and terminal equipment, so that the broadcast or multicast PDSCH can be scheduled through a specific DCI.
  • a PDSCH scheduling method which is applied to a base station, and the method includes: sending the terminal device-specific downlink control information (DCI) to a terminal device, and the DCI is used to schedule a physical downlink shared channel (PDSCH) transmission, indicating the type of the scheduled PDSCH or the radio network temporary identifier (RNTI) used by the scheduled PDSCH scrambling through the DCI, wherein the RNTI used to scramble the different types of the PDSCH is different,
  • the type of PDSCH includes: unicast PDSCH or multicast PDSCH.
  • a PDSCH receiving method which is applied to a terminal device, and the method includes: receiving downlink control information (DCI) specific to the terminal device; according to the type of PDSCH indicated by the DCI or the DCI
  • DCI downlink control information
  • the indicated RNTI used for the scrambled scheduled PDSCH receives the target PDSCH, where the type of the PDSCH includes: unicast PDSCH or multicast PDSCH.
  • a network device including: a sending module, configured to send the terminal device-specific DCI to a terminal device, the DCI is used to schedule PDSCH transmission, and the DCI indicates the scheduled PDSCH
  • RNTI radio network temporary identifier
  • a terminal device including: a first receiving module, configured to receive downlink control information (DCI) specific to the terminal device, where the DCI is used to schedule physical downlink shared channel (PDSCH) transmission;
  • the second receiving module is configured to receive the target PDSCH according to the type of the PDSCH indicated by the DCI or the RNTI used to scramble the PDSCH indicated by the DCI, wherein the type of the PDSCH includes: unicast PDSCH or multicast PDSCH.
  • DCI downlink control information
  • PDSCH physical downlink shared channel
  • a network device including: a memory, a processor, and a computer program that is stored on the memory and can run on the processor.
  • the computer program is executed by the processor, the following The steps of the method described in one aspect.
  • a computer-readable storage medium is provided, and a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, the steps of the method according to the first aspect or the second aspect are implemented .
  • the base station sends the UE-specific DCI to the UE.
  • the DCI is used to schedule PDSCH transmission.
  • the DCI indicates the type of the scheduled PDSCH or the RNTI used by the scrambled PDSCH, so that the UE is After receiving the DCI, the type of the PDSCH scheduled by the DCI or the RNTI used by the scheduled PDSCH can be learned, so that the UE can determine the PDSCH that should be received subsequently.
  • the base station can schedule the multicast PDSCH through a specific DCI, it can indicate specific control information to different UEs to support HARQ-ACK feedback of the multicast PDSCH.
  • FIG. 1 is a schematic flowchart of a PDSCH scheduling method provided by an embodiment of the present invention
  • Figure 2 is a schematic diagram of multicast PDSCH scheduling provided by an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a PDSCH receiving method provided by an embodiment of the present invention.
  • Figure 4 is a schematic diagram of a DAI calculation provided by an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another DAI calculation provided by an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • Fig. 9 is a schematic structural diagram of a network device provided by an embodiment of the present invention.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • GSM Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Advanced
  • NR New Radio
  • the user equipment can be connected to one or more cores via a radio access network (for example, RAN, Radio Access Network)
  • the user equipment can be a mobile terminal, such as a mobile phone (or “cellular” phone) and a computer with a mobile terminal.
  • a mobile terminal such as a mobile phone (or “cellular” phone) and a computer with a mobile terminal.
  • a mobile terminal such as a mobile phone (or “cellular” phone) and a computer with a mobile terminal.
  • it can be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device. , They exchange language and/or data with the wireless access network.
  • FIG. 1 is a schematic flowchart of a PDSCH scheduling method provided in an embodiment of the present invention, and the method 100 may be executed by a base station.
  • the method can be executed by software or hardware installed on the base station.
  • the method may include the following steps.
  • the DCI is used to schedule PDSCH transmission, and the DCI indicates the type of the scheduled PDSCH or the RNTI used by the scrambled scheduled PDSCH, where RNTIs used to scramble different types of the PDSCH are different, and the types of the PDSCH include: unicast PDSCH or group-cast PDSCH.
  • the multicast PDSCH may also include, but is not limited to, multicast PDSCH and broadcast PDSCH, and mainly refers to PDSCH sent to multiple terminal devices through the same physical resource.
  • the use of the DCI to schedule PDSCH transmission may also include: the DCI is used to activate Semi-Persistent Scheduling (SPS) PDSCH transmission, and instruct it to activate the PDSCH type or scrambling through the DCI RNTI used by the scheduled PDSCH. That is, by activating the DCI of the SPS PDSCH, it is indicated that the SPS PDSCH is a unicast PDSCH or a multicast PDSCH, or a scrambled RNTI of the SPS PDSCH.
  • SPS Semi-Persistent Scheduling
  • the DCI scheduled PDSCHs sent to different UEs are the same. That is, the PDSCHs indicated by multiple DCIs are the same (may include PDSCH time-frequency domain resource allocation, MCS and other information).
  • different UEs may include UEs joining the same multicast service, or UEs within the same broadcast range.
  • the base station schedules the same PDSCH through PDCCHs of different UEs, that is, multicast PDSCH.
  • the specific DCI sent to the UE may be: the DCI sent through the UE-specific PDCCH, or the DCI sent through the UE-specific search space, or the DCI sent through the PDCCH on the UE-specific search space, etc.
  • the base station sends the UE-specific DCI to the UE.
  • the DCI is used to schedule PDSCH transmission, and the DCI indicates the type of the scheduled PDSCH or the RNTI used for the scrambled PDSCH.
  • the UE can learn the type of the PDSCH scheduled by the DCI, or the RNTI used to scramble the scheduled PDSCH, so that the UE can determine the PDSCH that should be received subsequently.
  • the type of the scheduled PDSCH indicated by the DCI or the PNTI used for the scrambled scheduled PDSCH includes but is not limited to any one of (1) to (4) below.
  • (1) Indicate the PDSCH type or the RNTI through the value of the first indicator field included in the DCI, wherein different values of the first indicator field indicate different PDSCH types or different RNTI.
  • the base station uses UE-specific DCI to schedule unicast PDSCH, and the RNTI used for PDSCH scrambling is the same as the RNTI used for scrambling DCI and CRC. Therefore, in a possible implementation manner, in order for the UE to distinguish whether the PDSCH scheduled by the current DCI is a unicast PDSCH or a multicast PDSCH, the UE needs to know the RNTI used for PDSCH scrambling. Therefore, the base station indicates the RNTI used for PDSCH scrambling through DCI.
  • the RNTI scrambled by the DCI CRC is the same or different to indicate the type of the scheduled PDSCH or the RNTI used for the scrambled PDSCH.
  • this bit when the value of this bit is 1, it means that the RNTI used for PDSCH scrambling is the same as the RNTI used for DCI CRC scrambling, that is, both are C-RNTIs, or the currently scheduled PDSCH is a unicast PDSCH; and the value of this bit When it is 0, it means that the RNTI used for PDSCH scrambling is different from the RNTI used for DCI CRC scrambling.
  • the RNTI used for PDSCH scrambling is g-RNTI, or it indicates that the currently scheduled PDSCH is a multicast PDSCH.
  • the RNTI indication field may be included in the DCI to indicate the RNTI sequence used when the PDSCH scheduled by the DCI is scrambled, and the correspondence between the type of the PDSCH and the RNTI sequence used when the PDSCH is scrambled is agreed in advance. Therefore, through the value of the RNTI indication field of the DCI, different PDSCH types and different RNTIs can be indicated.
  • the base station schedules multicast PDSCH by using DCI format 1-1 or DCI format 1-2 and C-RNTI or MCS-C-RNTI, and indicates the RNTI used for scrambling the scheduled PDSCH in the DCI (it can be in DCI 1_1 Or the newly added indicator field in DCI 1_2, such as RNTI indicator (RNTI indicator field) or reuse of existing field) is the C-RNTI or MCS-C-RNT used for unicast PDSCH scrambling, or the g used for multicast PDSCH scrambling -RNTI, and DCI also contains other indication fields (which can be the same as the unicast PDSCH scheduling).
  • DCI also contains other indication fields (which can be the same as the unicast PDSCH scheduling).
  • one or more domains in the DCI may be reused, and the type of the PDSCH or the RNTI may be indicated through a specific combination or state of one or more domains.
  • one or more existing domains in the DCI can be reused to indicate whether a unicast PDSCH or a multicast PDSCH is scheduled.
  • RV Redundancy Version
  • HARQ-ACK Hybrid Automatic Repeat-Acknowledgement
  • TDRA Time Domain Resource Allocation
  • each group or pool can contain one or more CORESET, etc., or the SS where DCI is located or the SS group where DCI is located or The pool (where each group/pool can contain one or more SSs) (group/pool) is determined. For example, when the DCI of the DCI format 1_1 or 1-2 is scheduled at CORESET A, the unicast PDSCH is scheduled, and when the DCI of the DCI format 1_1 or 1-2 is scheduled at CORESET B, the multicast PDSCH is scheduled.
  • DCI uses DCI 1_1 format to schedule unicast PDSCH, and DCI uses DCI 1_2 format to schedule multicast PDSCH.
  • the format used by the DCI may also be combined with the first indication field in the DCI to indicate the type of the PDSCH or the RNTI.
  • DCI 1_0 is used for scheduled unicast PDSCH, that is, the PDSCHs scheduled using DCI 1_0 format are all unicast PDSCHs
  • DCI 1_1 is used to schedule multicast PDSCH or unicast PDSCH
  • the specific domain in DCI indicates the scheduled PDSCH The type of PDSCH.
  • a certain DCI uses C-RNTI to scramble the CRC, it indicates a unicast PDSCH, and when an X-RNTI is used to scramble the CRC, it indicates a multicast PDSCH.
  • the relationship between the above-mentioned DCI format or the type of RNTI for scrambling CRC and PDSCH may be configured by high-level signaling, or determined in a predefined manner.
  • the DCI further includes at least one of the following (1) to (4).
  • DAI Downlink assignment index
  • the DAI in the DCI may be calculated separately for different PDSCH types or PDSCH scrambled by different RNTIs. That is, when calculating DAI, the base station performs cumulative calculations for different PDSCH types or PDSCH scrambled by different RNTIs. For example, the base station can maintain two DAI counters for the same UE, namely the first DAI counter and the second DAI counter. Accumulate when broadcasting PDSCH. The base station determines whether the value of the first DAI counter or the value of the second DAI counter carried in the DCI is based on the type of the PDSCH scheduled by the currently transmitted DCI or the RNTI used when the scheduled PDSCH is scrambled.
  • the DCI may include a 2-bit DAI field. If the current PDCCH schedules a unicast PDSCH, the first DAI counter is accumulated, and the value of the first DAI counter is filled in the DAI field of the DCI. If the multicast PDSCH is scheduled, the second DAI counter is accumulated, and the value of the second DAI counter is filled in the DAI field of the DCI.
  • HARQ-ACK (sub)codebooks are generated for unicast PDSCH and multicast PDSCH respectively, and the accumulated DAI (count DAI, C-DAI) value and total DAI (total DAI, t-DAI) value are respectively generated Applies to each HARQ-ACK (sub)codebook.
  • the DAI of PDSCHs scrambled by different types or RNTIs are accumulated separately, and the UE constructs HARQ-ACK (sub)codebooks for PDSCHs of different types or RNTIs, which reduces the impact on the existing unicast PDSCH codebook construction and avoids The impact of multicast PDSCH on unicast PDSCH scheduling and feedback is discussed.
  • the DAI in the DCI may be cumulatively calculated. That is, when calculating the DAI, the base station performs a unified cumulative calculation for different PDSCH types or PDSCH scrambled by different RNTIs. In this method, the DAI of PDSCHs scrambled by different types or RNTIs is accumulated uniformly.
  • the UE constructs a HARQ-ACK (sub) codebook for PDSCHs of different types or RNTIs, and there is no need to distinguish different PDSCH types during HARQ-ACK feedback at the UE. Or the RNTI corresponding to the PDSCH, which simplifies the process of the UE.
  • the indication information is used to indicate the timing from PDSCH to HARQ-ACK feedback.
  • the PDSCH to HARQ feedback timing indication information may be used to indicate the parameters in the predetermined parameter set.
  • the network side may pre-configure the predetermined parameter set through radio resource control (Radio Resource Control, RRC) instructions, or configure the predetermined parameter set through protocol provisions.
  • RRC Radio Resource Control
  • 8 parameter values are pre-configured in the predetermined parameter set, and the DCI may include a 3-bit PDSCH-to-HARQ_feedback timing indicator (PDSCH-to-HARQ_feedback timing indicator), which indicates a certain parameter in the predetermined parameter set. Parameter values.
  • the predetermined parameter sets are different. That is, the network side respectively configures a predetermined parameter set for unicast PDSCH and multicast PDSCH, or respectively specifies predetermined parameter sets corresponding to unicast PDSCH and multicast PDSCH.
  • the predetermined parameter set is related to the UE capabilities and service requirements.
  • the predetermined parameter set corresponding to the multicast PDSCH needs to consider the UE with the worst capability, a larger value (for example, 10, 11, 12, 13) may need to be configured instead of unicast PDSCH.
  • the corresponding predetermined parameter set only needs to consider the UE capability of unicast PDSCH, and a predetermined parameter set with a relatively small value (for example, 4, 5, 6, 7) can be configured.
  • the predetermined parameter sets corresponding to different types of PDSCH or RNTI scrambled PDSCH are determined separately, which can reduce the number of elements in the predetermined parameter set corresponding to each PDSCH, and reduce the bit overhead of the relevant indication field in the DCI.
  • the predetermined parameter sets are the same. That is, the network side uniformly configures or specifies a predetermined parameter set for unicast PDSCH and multicast PDSCH. In this method, there is no need to determine the corresponding predetermined parameter sets for different types of PDSCHs or RNTI scrambled PDSCHs, simplifying the parameter set configuration, and the UE does not need to distinguish between different types of PDSCHs or different RNTIs when determining the corresponding parameter sets. Disturbed PDSCH.
  • PUCCH resource indicator information (PUCCH resource indicator, PRI), the resource indicator information is used to indicate the PUCCH resource of the HARQ-ACK feedback corresponding to the PDSCH.
  • the resource indication information of the PUCCH may be used to indicate resources in a predetermined PUCCH resource set.
  • the network side may configure a predetermined PUCCH resource set through RRC instructions, or configure the predetermined PUCCH resource set through protocol provisions.
  • the predetermined PUCCH resource set includes multiple resources, and the PUCCH resource indication information can indicate that the current PUCCH resource is one resource in the predetermined PUCCH resource set.
  • the predetermined PUCCH resource sets are different. That is, the network side respectively configures a predetermined PUCCH resource set for the HARQ-ACK feedback PUCCH resources corresponding to the unicast PDSCH and the multicast PDSCH. In this way, the corresponding PUCCH resources can be flexibly configured according to the characteristics of different services.
  • the predetermined PUCCH resource sets are the same. That is, the network side uniformly configures a predetermined PUCCH resource set for the HARQ-ACK feedback PUCCH resources corresponding to the unicast PDSCH and the multicast PDSCH. This method can simplify the resource allocation and determination process.
  • the base station may send configuration signaling to the terminal device, configure the power control adjustment state (for example, Two PUCCH-PC-AdjustmentStates) configuration information of the PUCCH, and configure the power control parameters of the PUCCH.
  • the power control adjustment state configuration information for different types of PDSCHs or PDSCHs scrambled by different RNTIs corresponding to the PUCCH scheduled by DCI, the same power control adjustment state configuration information is configured, that is, the power control adjustment state configuration information is uniformly configured.
  • different power control adjustment state configuration information may be configured. Specifically, it can be determined according to actual needs, that is, the power control adjustment state configuration information is configured separately.
  • the PUCCH transmission power control command indicates to the UE the transmission power of the PUCCH fed back by the HARQ-ACK corresponding to the PDSCH.
  • the transmission power indicated in the PUCCH transmission power control command may not be the absolute value of the transmission power, but a relative value relative to the previous PUCCH transmission power.
  • the transmission power indicated by the PUCCH transmission power control command is accumulated respectively.
  • the transmission power indicated by the PUCCH transmission power control command in the DCI is a relative value relative to the transmission power of the PUCCH corresponding to the last multicast PDSCH. For example, increase by 1dB, or decrease by 1dB, etc.
  • the corresponding PUCCH power modulation state can be flexibly configured according to the characteristics of different services.
  • the transmission power indicated by the PUCCH transmission power control command is collectively accumulated.
  • the configuration process is simplified, and the UE does not need to distinguish PUCCHs corresponding to different types of PDSCHs, which simplifies the UE implementation.
  • the transmission power indicated by the PUCCH transmission power control command in the DCI is a relative value relative to the transmission power of the PUCCH corresponding to the PDSCH scheduled last time.
  • UE dedicated PDCCH can be used to schedule multicast PDSCH, which realizes multicast transmission of data information, saves system resources, and improves system efficiency.
  • the base station can Instructing UE-specific control information to different UEs can achieve flexible indication of control information. For example, different UEs can indicate different PUCCH feedback resources, and different UEs can use different PUCCH transmission powers, which solves the problem of multicast PDSCH HARQ-ACK feedback. Issues such as resource indication and power control.
  • FIG. 3 is a schematic flowchart of a method for receiving PDSCH according to an embodiment of the present invention.
  • the method 300 may be executed by a terminal device.
  • the method can be executed by software or hardware installed on the terminal device.
  • the method may include the following steps.
  • S310 Receive the specific DCI of the terminal device, where the DCI is used to schedule PDSCH transmission.
  • the UE may receive the DCI sent to it by the base station through its specific PDCCH.
  • the UE can detect its specific PDCCH and receive the DCI transmitted on the PDCCH.
  • the manner in which the base station sends the DCI can refer to the description in the method 100, which will not be repeated here.
  • S320 Receive a target PDSCH according to the PDSCH type indicated by the DCI or the RNTI used for scrambling the PDSCH indicated by the DCI, where the type of the PDSCH includes: unicast PDSCH or multicast PDSCH.
  • the UE supporting the multicast PDSCH can detect and receive the UE-specific PDCCH, and receive the PDSCH according to the indication of the received DCI.
  • the UE-specific PDCCH can schedule both unicast PDSCH and multicast PDSCH, and the RNTI used for scrambling of unicast PDSCH and multicast PDSCH is different. Therefore, the UE can determine whether the PDSCH scheduled by the current PDCCH is a unicast PDSCH according to the indication of the DCI. Or determine the RNTI used for PDSCH scrambling according to the DCI indication.
  • the UE may use a method corresponding to the type of PDSCH indicated by the base station through the DCI in the method 100 and the RNTI used by the scrambled PDSCH to determine the received DCI
  • the type of PDSCH or the scrambled scheduled PDSCH indicated by the DCI is obtained through one of the following (1) to (4).
  • the first indicator field includes but is not limited to the RNTI indicator field.
  • DCI can contain 1-bit (such as the newly added RNTI indicator field) to indicate the RNTI used for PDSCH scrambling
  • the RNTI scrambled by the domain DCI and CRC is the same or different, and the type of the scheduled PDSCH or the RNTI used for the scrambled PDSCH is indicated by the indication field.
  • the 1 bit when the 1 bit is 1, it means that the RNTI used for PDSCH scrambling is the same as the RNTI used for DCI and CRC scrambling, that is, both are C-RNTIs, or that the currently scheduled unicast PDSCH is. If this bit is 0, it means that the RNTI used for PDSCH scrambling is different from the RNTI used for DCI and CRC scrambling, that is, the RNTI used for PDSCH scrambling is g-RNTI, or the currently scheduled multicast PDSCH is.
  • the first indication field may also be another indication field in the DCI.
  • the related description in the method 100 please refer to the related description in the method 100, which will not be repeated here.
  • the network side can pre-configure or protocol the CORESET or search space used for scheduling the DCI of the multicast PDSCH, and the CORESET or search space used for the DCI of the unicast PDSCH, and the UE can be based on the detected DCI
  • the CORESET or search space in which it is located can determine the type of PDSCH scheduled by the current DCI, and determine the RNTI of the PDSCH scheduled by scrambling.
  • DCI uses DCI 1_1 format to schedule unicast PDSCH, and DCI uses DCI 1_2 format to schedule multicast PDSCH.
  • the type of the PDSCH or the RNTI may also be determined according to a combination of the format used by the DCI and the first indicator field in the DCI.
  • DCI 1_0 is used for unicast PDSCH scheduling, that is, the PDSCHs scheduled by DCI 1_0 format are all unicast PDSCHs
  • DCI 1_1 is used to schedule multicast PDSCH or unicast PDSCH, and the scheduling is indicated by a specific field in DCI 1_1
  • the type of PDSCH is used for unicast PDSCH scheduling.
  • a certain DCI uses C-RNTI to scramble the CRC, it indicates a unicast PDSCH, and when an X-RNTI is used to scramble the CRC, it indicates a multicast PDSCH.
  • the relationship between the above-mentioned DCI format or RNTI for CRC scrambled and PDSCH type may be configured by high-level signaling or determined in a predefined manner.
  • the method may further include: descrambling the target PDSCH using the RNTI corresponding to the type of the PDSCH indicated by the DCI; or using the DCI The indicated RNTI descrambles the target PDSCH.
  • the UE can descramble the target PDSCH, thereby obtaining PDSCH information transmitted by the network side.
  • the DCI may also include: PDSCH to HARQ feedback timing indication information.
  • the method further includes: determining a time slot or sub-slot for feeding back the target PDSCH according to the PDSCH to HARQ feedback timing indication information.
  • the base station can configure the predetermined parameter set (k1 set) corresponding to the PDSCH to HARQ feedback timing indication information through RRC parameters.
  • the feedback location can be determined through the PDSCH to HARQ feedback timing indication information.
  • the base station may configure different predetermined parameter sets (k1 sets), or may also configure the same predetermined parameter set (k1 set), which can be specifically determined according to actual applications.
  • the DCI may further include: PUCCH resource indication information.
  • the method may further include: determining the PUCCH resource during HARQ feedback corresponding to the target PDSCH according to the resource indication information (PRI) of the PUCCH in the DCI.
  • PRI resource indication information
  • the base station may configure a predetermined PUCCH resource set through RRC instructions, or configure the predetermined PUCCH resource set through protocol provisions.
  • Each predetermined resource set contains one or more resources.
  • the UE determines the corresponding PUCCH resource set according to the number of HARQ-ACK feedback bits, and determines a PUCCH in the set according to the PRI (and the first CCE index of the CORESET where DCI is located) resource.
  • the base station can configure different predetermined PUCCH resource sets for multicast PDSCH and unicast PDSCH feedback.
  • the PUCCH resource is determined in the resource set corresponding to the multicast PDSCH, and the feedback is
  • the PUCCH resource is determined in the resource set corresponding to the unicast PDSCH.
  • the PUCCH resource sets corresponding to the PUCCH resource indication information may also be the same. That is, the network side uniformly configures a predetermined PUCCH resource set for the HARQ-ACK feedback PUCCH resources corresponding to the unicast PDSCH and the multicast PDSCH.
  • the DCI further includes: PUCCH transmission power control signaling.
  • the method further includes: determining the transmission power of the PUCCH during HARQ feedback corresponding to the target PDSCH according to the transmission power control signaling of the PUCCH in the DCI.
  • the base station can configure the power control adjustment state of the PUCCH through high-level parameters.
  • the base station may configure different PUCCH power control adjustment states for the PUCCH scheduled by the multicast PDSCH and the unicast PDSCH. That is to say, in the DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the PUCCH power control adjustment states corresponding to the PUCCH transmission power control commands are different.
  • the base station may also configure the same PUCCH power control adjustment state for the PUCCH scheduled by the multicast PDSCH and the unicast PDSCH. That is, in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the PUCCH power control adjustment states corresponding to the PUCCH transmission power control commands are the same.
  • the transmission power indicated by the PUCCH transmission power control command is accumulated respectively. Or, for all PDSCH types or all RNTI scrambled PDSCHs, the transmission power indicated by the PUCCH transmission power control command is collectively accumulated. For details, please refer to the related description in the method 100, which will not be repeated here.
  • the DCI may further include: DAI.
  • the method further includes: constructing a HARQ feedback codebook of the target PDSCH according to the DAI in the DCI.
  • the DAI in the DCI is separately counted. That is, DAI is calculated in unicast PDSCH and multicast PDSCH respectively. Or, for all PDSCH types or all RNTI scrambled PDSCHs, the DAI in the DCI is cumulatively calculated.
  • DCI 1 to 5 are all C-RNTI scrambled DCI formats to schedule PDSCH 1 to 5 respectively.
  • PDSCH 1, 3, and 4 are multicast PDSCHs
  • PDSCH 2 and 5 are single Broadcast PDSCH.
  • the DAI indication is calculated in the unicast PDSCH and the multicast PDSCH respectively, and the DAI in each DCI is shown in FIG. 4.
  • the HARQ-ACK codebooks of unicast PDSCH and multicast PDSCH are constructed respectively in different codebooks (for example, feedback in different time slots or sub-slots or different PUCCH resource feedback) or in one code Different sub-codebooks of this locale (for example, feedback in the same time slot or sub-slot or the same PUCCH resource feedback).
  • DAI is cumulatively calculated in unicast PDSCH and multicast PDSCH, that is, the DAI calculation does not distinguish between unicast PDSCH and multicast PDSCH, and the DAI in each DCI is shown in FIG. 5. Since the DAI calculation does not distinguish between unicast PDSCH and multicast PDSCH, during HARQ-ACK feedback, a codebook may contain the HARQ-ACK corresponding to the unicast PDSCH or the multicast PDSCH.
  • the DAI in DCI can also be processed in a corresponding manner. The details are not repeated here.
  • the UE can schedule a multicast PDSCH through its specific DCI, realize the multicast transmission of data information, save system resources, and realize flexible indication of control information while improving system efficiency, so that Different UEs can use UE-specific resources and power to feed back and transmit HARQ-ACK information corresponding to the multicast PDSCH.
  • FIG. 6 is a schematic structural diagram of a network device provided by an embodiment of the present invention.
  • the network device 600 includes: a sending module 610, configured to send the terminal device specific DCI to the terminal device, the DCI Used for scheduling PDSCH transmission, indicating the type of the scheduled PDSCH through the DCI or scrambling the radio network temporary identifier (RNTI) used by the scheduled PDSCH, wherein the RNTI used by different types of the PDSCH is scrambled
  • the types of the PDSCH include: unicast PDSCH or multicast PDSCH.
  • the DCI scheduled PDSCHs sent to different terminal devices are the same.
  • the type of the scheduled PDSCH or the RNTI used by the scrambled scheduled PDSCH indicated by the DCI includes any one of the following:
  • CORESET control resource set
  • search space in which the DCI is located, where the DCI is located in different CORESET or search spaces corresponding to different PDSCH types or different RNTIs;
  • the RNTI used by the cyclic redundancy check (CRC) of the DCI is scrambled to indicate the type of the PDSCH or the RNTI, where different RNTIs used by the CRC to scramble the DCI correspond to different PDSCH types or Different RNTI.
  • CRC cyclic redundancy check
  • the DCI further includes at least one of the following:
  • DAI Downlink Allocation Index
  • PUCCH Physical uplink control channel
  • the DAI in the DCI is calculated separately; or, for all the PDSCH types or all RNTI scrambled PDSCH, the DAI in the DCI is cumulatively calculated.
  • the PDSCH to HARQ feedback timing indication information in the DCI is used to indicate parameters in a predetermined parameter set.
  • the predetermined The parameter set is different.
  • the PDSCH to HARQ feedback timing indication information in the DCI is used to indicate parameters in a predetermined parameter set.
  • the predetermined The parameter set is the same.
  • the PUCCH resource indication information in the DCI is used to indicate resources in a predetermined PUCCH resource set, where, for different types of PDSCHs or PDSCHs scrambled by different RNTIs, the predetermined PUCCH resources The collection is different.
  • the PUCCH resource indication information in the DCI is used to indicate resources in a predetermined PUCCH resource set, where, for different types of PDSCHs or PDSCHs scrambled by different RNTIs, the predetermined PUCCH resources The information is the same.
  • the sending module 610 is further configured to send configuration signaling to the terminal device before sending the terminal device-specific DCI to the terminal device, where the configuration signaling includes the power of the PUCCH Control adjustment state configuration information, wherein, for different types of PDSCHs or PDSCHs scrambled by different RNTIs corresponding to the PUCCH scheduled by DCI, the power control adjustment state configuration information is configured respectively.
  • the sending module 610 is further configured to send configuration signaling to the terminal device before sending the terminal device-specific DCI to the terminal device, where the configuration signaling includes the power of the PUCCH Control adjustment state configuration information, where, for different types of PDSCHs or PDSCHs scrambled by different RNTIs corresponding to the PUCCH scheduled by DCI, the unified power control adjustment state configuration information is configured.
  • the transmission power indicated by the PUCCH transmission power control command is accumulated separately; or, for all the The type of PDSCH or the DCI corresponding to all RNTI scrambled PDSCHs, and the transmission power indicated by the PUCCH transmission power control command are collectively accumulated.
  • the network device provided by the embodiment of the present invention can implement each process implemented by the base station in the method embodiments of FIG. 1 to FIG. 5 and achieve the same effect. To avoid repetition, details are not described herein again.
  • FIG. 7 is a schematic structural diagram of a terminal device provided by an embodiment of the present invention.
  • the core network device 700 includes: a first receiving module 710, which receives downlink control information (DCI) specific to the terminal device, The DCI is used for scheduling physical downlink shared channel (PDSCH) transmission; the second receiving module 720 is used for scheduling according to the type of the PDSCH indicated by the DCI or the scrambled PDSCH indicated by the DCI
  • the RNTI receives the target PDSCH, where the type of the PDSCH includes: unicast PDSCH or multicast PDSCH.
  • the type of the PDSCH indicated by the DCI or the RNTI used to scramble the PDSCH is obtained through one of the following:
  • the RNTI used by the cyclic redundancy check (CRC) of the DCI is scrambled to indicate the type of the PDSCH or the RNTI, where different RNTIs used by the CRC to scramble the DCI correspond to different PDSCH types or Different RNTI.
  • CRC cyclic redundancy check
  • the second receiving module 720 is further configured to, after receiving the target PDSCH, use the RNTI corresponding to the type of the PDSCH indicated by the DCI to descramble the target PDSCH; or, Use the RNTI indicated by the DCI to descramble the target PDSCH.
  • the DCI further includes: PDSCH to HARQ feedback timing indication information; the first receiving module 710 is further configured to, after receiving the DCI transmitted on the PDCCH, according to the PDSCH to HARQ feedback The timing indication information determines the time slot or sub-slot for feeding back the target PDSCH.
  • the parameter sets corresponding to the PDSCH to HARQ feedback timing indication information are different.
  • the parameter sets corresponding to the PDSCH to HARQ feedback timing indication information are the same.
  • the DCI further includes: PUCCH resource indication information; the first receiving module 710 is further configured to, after receiving the DCI transmitted on the PDCCH, perform according to the PUCCH resource in the DCI
  • the indication information determines the PUCCH resource during HARQ feedback corresponding to the target PDSCH.
  • the PUCCH resource sets corresponding to the PUCCH resource indication information are different.
  • the PUCCH resource sets corresponding to the PUCCH resource indication information are the same.
  • the DCI further includes: PUCCH transmission power control signaling; the first receiving module 710 is further configured to, after receiving the DCI transmitted on the PDCCH, perform according to the PUCCH in the DCI
  • the transmission power control signaling of the target PDSCH determines the transmission power of the PUCCH during HARQ feedback corresponding to the target PDSCH.
  • the PUCCH power control adjustment states corresponding to the PUCCH transmission power control commands are different.
  • the power control adjustment states of the PUCCH corresponding to the PUCCH transmission power control command are the same.
  • the transmission power indicated by the PUCCH transmission power control command is accumulated separately; or, for all the PDSCH types or For all PDSCH scrambled by RNTI, the transmission power indicated by the PUCCH transmission power control command is accumulated together.
  • the DCI further includes: DAI; the terminal device further includes: a construction module for receiving a target PDSCH corresponding to the type of the PDSCH, according to the DAI in the DCI , Constructing the HARQ feedback codebook of the target PDSCH.
  • the DAI in the DCI is calculated separately; or, for all the PDSCH types or all RNTI scrambled PDSCH, the DAI in the DCI is cumulatively calculated.
  • the terminal device provided in the embodiment of the present invention can implement the various processes implemented by the terminal device in the above-mentioned method embodiments in FIG. 1 to FIG. 5, and achieve the same effect. To avoid repetition, details are not described herein again.
  • Fig. 8 is a block diagram of a terminal device according to another embodiment of the present invention.
  • the terminal device 800 shown in FIG. 8 includes: at least one processor 801, a memory 802, at least one network interface 804, and a user interface 803.
  • the various components in the terminal device 800 are coupled together through the bus system 805.
  • the bus system 805 is used to implement connection and communication between these components.
  • the bus system 805 also includes a power bus, a control bus, and a status signal bus.
  • various buses are marked as the bus system 805 in FIG. 8.
  • the user interface 803 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball (trackball), a touch panel, or a touch screen, etc.).
  • a pointing device for example, a mouse, a trackball (trackball), a touch panel, or a touch screen, etc.
  • the memory 802 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • Synchronous DRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • Double Data Rate SDRAM Double Data Rate SDRAM
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • Enhanced SDRAM, ESDRAM Synchronous Link Dynamic Random Access Memory
  • Synch Link DRAM Synchronous Link Dynamic Random Access Memory
  • DRRAM Direct Rambus RAM
  • the memory 802 of the system and method described in the embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.
  • the memory 802 stores the following elements, executable modules or data structures, or a subset of them, or an extended set of them: operating system 8021 and application programs 8022.
  • the operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks.
  • the application program 8022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services.
  • the program for implementing the method of the embodiment of the present invention may be included in the application 8022.
  • the terminal device 800 further includes: a computer program that is stored in the memory 802 and can run on the processor 801. When the computer program is executed by the processor 801, the following steps are implemented:
  • DCI downlink control information
  • PDSCH physical downlink shared channel
  • the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 801 or implemented by the processor 801.
  • the processor 801 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method can be completed by hardware integrated logic circuits in the processor 801 or instructions in the form of software.
  • the aforementioned processor 801 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC application specific integrated circuit
  • FPGA Field Programmable Gate Array
  • Programmable logic devices discrete gates or transistor logic devices, discrete hardware components.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in combination with the embodiments of the present invention may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a computer-readable storage medium that is mature in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the computer-readable storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and completes the steps of the foregoing method in combination with its hardware.
  • a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 801, each step in the above method 300 is implemented.
  • the embodiments described in the embodiments of the present invention may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more application specific integrated circuits (ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing equipment (DSP Device, DSPD), programmable Logic device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in the present invention Electronic unit or its combination.
  • ASIC application specific integrated circuits
  • DSP Digital Signal Processing
  • DSP Device digital signal processing equipment
  • PLD programmable Logic Device
  • PLD Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array
  • the technology described in the embodiments of the present invention can be implemented by modules (for example, procedures, functions, etc.) that execute the functions described in the embodiments of the present invention.
  • the software codes can be stored in the memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.
  • the terminal device 800 can implement the various processes implemented by the terminal device in FIG. 1 to FIG.
  • FIG. 9 is a structural diagram of a network device applied in an embodiment of the present invention, which can be used as a base station to implement various details in the methods 100 and 300 and achieve the same effect.
  • the network device 900 includes: a processor 901, a transceiver 902, a memory 903, a user interface 904, and a bus interface, where:
  • the network device 900 further includes: a computer program stored in the memory 903 and capable of running on the processor 901.
  • the computer program is executed by the processor 901, the following steps are implemented: sending the terminal to the terminal device.
  • Device-specific DCI the DCI is used to schedule PDSCH transmission, and the type of the scheduled PDSCH or the radio network temporary identifier (RNTI) used by the scheduled PDSCH is indicated by the DCI, wherein the scrambling is different
  • the types of PDSCHs use different RNTIs, and the types of PDSCHs include: unicast PDSCH or multicast PDSCH.
  • the processor 901 is responsible for managing the bus architecture and general processing, and the memory 903 can store data used by the processor 901 when performing operations.
  • the network device 900 can implement each process implemented by the base station in FIG. 1 to FIG. 5 and achieve the same effect. To avoid repetition, details are not described herein again.
  • the embodiment of the present invention also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, the base station or The terminal device executes each process and can achieve the same technical effect. In order to avoid repetition, the details are not repeated here.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk, or optical disk, etc.
  • the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes a number of instructions to enable a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the method described in each embodiment of the present invention.
  • a terminal which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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Abstract

Disclosed are a method for scheduling a physical downlink shared channel (PDSCH), and a network device and a terminal device. A method for scheduling the PDSCH is applied to a base station. The method comprises: sending, to a terminal device, downlink control information (DCI) specific to the terminal device, the DCI being used for scheduling transmission of the PDSCH, and by means of the DCI, indicating the type of the scheduled PDSCH or a radio network temporary identity (RNTI) used by scrambling the scheduled PDSCH, wherein the RNTIs used for scrambling different types of PDSCHs are different, and the types of the PDSCHs comprise: a unicast PDSCH or a multicast PDSCH.

Description

物理下行共享信道的调度方法、网络设备及终端设备Scheduling method of physical downlink shared channel, network equipment and terminal equipment
交叉引用cross reference
本发明要求在2020年03月31日提交的申请号为202010247369.8、发明名称为“物理下行共享信道的调度方法、网络设备及终端设备”的中国专利申请的优先权,该申请的全部内容通过引用结合在本发明中。The present invention claims the priority of the Chinese patent application with the application number 202010247369.8 and the invention title of "Physical Downlink Shared Channel Scheduling Method, Network Equipment and Terminal Equipment" filed on March 31, 2020. The entire content of the application is by reference Incorporated in the present invention.
技术领域Technical field
本发明涉及通信领域,尤其涉及一种物理下行共享信道(PDSCH)的调度方法、网络设备及终端设备。The present invention relates to the field of communications, in particular to a physical downlink shared channel (PDSCH) scheduling method, network equipment and terminal equipment.
背景技术Background technique
在LTE的广播多播传输中,支持多播广播单频网(Multimedia Broadcast multicast service Single Frequency Network,MBSFN)方式多播广播业务(Multimedia Broadcast multicast service,MBMS)发送和单小区点到多点(Single-Cell Point-to-Multipoint,SC-PTM)方式多播业务发送。MBSFN的方式中,处于同一个MBSFN区域的小区同步的发送相同的广播业务,便于用户设备(User Equipment,简称UE)进行接收。MBMS业务的控制信息(控制信道参数和业务信道参数,以及调度信息等)和数据信息都是广播方式发送,使得空闲(idle)态UE和连接态UE都可以接收MBMS业务,且MBMS的数据信息只在MBSFN子帧发送。SC-PTM是在MBMS业务之后又标准化的一种多播发送方式,与MBSFN方式最大的不同是只在单小区调度发送,由群组无线网络临时标识(Group-Radio Network Temporary Identity,G-RNTI)来进行业务调度。在广播消息里广播控制信道参数和业务的标识,周期信息等,调度信息由G-RNTI加扰的物理下行控制信道(Physical Downlink Control Channel,PDCCH)进行通知,数据部分是组播方式发送,相当于感兴趣的 UE监听G-RNTI获得数据调度进而进行接收。In LTE broadcast multicast transmission, it supports multicast broadcast single frequency network (Multimedia Broadcast multicast service Single Frequency Network, MBSFN) mode multicast broadcast service (Multimedia Broadcast multicast service, MBMS) transmission and single cell point-to-multipoint (Single) -Cell Point-to-Multipoint, SC-PTM) multicast service transmission. In the MBSFN mode, cells in the same MBSFN area synchronously send the same broadcast service, which is convenient for user equipment (User Equipment, UE for short) to receive. The control information (control channel parameters and service channel parameters, and scheduling information, etc.) and data information of the MBMS service are sent in a broadcast mode, so that both idle and connected UEs can receive the MBMS service, and the MBMS data information Only sent in MBSFN subframes. SC-PTM is a multicast transmission method standardized after the MBMS service. The biggest difference from the MBSFN method is that it is only scheduled for transmission in a single cell. It is determined by the Group-Radio Network Temporary Identity (G-RNTI). ) To perform business scheduling. In the broadcast message, the control channel parameters and service identification, period information, etc. are broadcast. The scheduling information is notified by the Physical Downlink Control Channel (PDCCH) scrambled by G-RNTI. The data part is sent in multicast mode, which is equivalent The interested UE monitors the G-RNTI to obtain data scheduling and then receives it.
现有技术中每个下行控制信息(downlink control information,DCI)对应一个无线网络临时标识(Radio Network Temporary Identity,RNTI),并在DCI进行循环冗余校验(CRC)后,使用相应的RNTI对CRC进行加扰。加扰DCI CRC的RNTI包括C-RNTI、S-RNTI、MCS-C-RNTI、TC-RNTI、P-RNTI以及SI-RNTI等。其中不同的RNTI有不同的用途,例如C-RNTI和MCS-C-RNTI用于调度单播(unicast)物理下行共享信道(PDSCH)传输或物理上行共享信道(PUSCH)资源分配,CS-RNTI用于激活或重传输调度SPS PDSCH或type 2 CG PUSCH。TC-RNTI用于mgs3PUSCH的重传调度。DCI发送时的处理流程如下:In the prior art, each downlink control information (DCI) corresponds to a Radio Network Temporary Identity (RNTI), and after the DCI performs a cyclic redundancy check (CRC), the corresponding RNTI pair is used CRC scrambles. The RNTI that scrambles the DCI and CRC includes C-RNTI, S-RNTI, MCS-C-RNTI, TC-RNTI, P-RNTI, and SI-RNTI. Different RNTIs have different purposes. For example, C-RNTI and MCS-C-RNTI are used for scheduling unicast physical downlink shared channel (PDSCH) transmission or physical uplink shared channel (PUSCH) resource allocation, and CS-RNTI is used Schedule SPS PDSCH or type 2 CG PUSCH during activation or retransmission. TC-RNTI is used for retransmission scheduling of mgs3PUSCH. The processing flow when DCI is sent is as follows:
DCI→CRC附着(使用RNTI对CRC进行加扰)→信道编码→速率匹配→加扰→调制→映射到物理资源。DCI → CRC attachment (using RNTI to scramble the CRC) → channel coding → rate matching → scrambling → modulation → mapping to physical resources.
在上述DCI发送的处理流程中在CRC校验后会使用RNTI加扰CRC。In the above-mentioned DCI sending process, the RNTI will be used to scramble the CRC after the CRC check.
对于PDSCH传输时也会进行一系列的处理,PDSCH发送时的处理流程如下:For PDSCH transmission, a series of processing is also performed. The processing flow for PDSCH transmission is as follows:
下行共享信道(Downlink Shared Channel,DL-SCH)→CRC→信道编码→速率匹配→加扰→调制→层映射→天线端口映射→映射到虚拟资源块→映射到物理资源。Downlink Shared Channel (DL-SCH) → CRC → channel coding → rate matching → scrambling → modulation → layer mapping → antenna port mapping → mapping to virtual resource block → mapping to physical resources.
其中,在加扰过程中,加扰序列根据PDSCH关联的RNTI进行初始化,而PDSCH关联的RNTI,与其对应的调度或激活DCI的RNTI相同。In the scrambling process, the scrambling sequence is initialized according to the RNTI associated with the PDSCH, and the RNTI associated with the PDSCH is the same as the corresponding RNTI for scheduling or activating the DCI.
现有技术中,单播PDSCH使用特定的DCI调度,UE根据其DCI中的指示信息,进行反馈。例如,PUCCH传输资源和传输功率等。这样可以使得不同UE分配不同的PUCCH资源,避免资源冲突,且能够使不同UE的上行传输在接收端的接收功率尽量相同。在广播/多播传输时,使用组公共DCI调度组播PDSCH,但是组播PDSCH不支持HARQ-ACK反馈和重传,然而HARQ-ACK反馈或重传可以提高广播/多播传输可靠性。因此如何调度广播 或多播PDSCH并支持HARQ-ACK反馈是目前需要解决的技术问题。In the prior art, the unicast PDSCH uses specific DCI scheduling, and the UE performs feedback according to the indication information in its DCI. For example, PUCCH transmission resources and transmission power. In this way, different UEs can be allocated different PUCCH resources, resource conflicts can be avoided, and the received power of the uplink transmission of different UEs at the receiving end can be made the same as possible. During broadcast/multicast transmission, the group common DCI is used to schedule the multicast PDSCH, but the multicast PDSCH does not support HARQ-ACK feedback and retransmission. However, HARQ-ACK feedback or retransmission can improve the reliability of broadcast/multicast transmission. Therefore, how to schedule broadcast or multicast PDSCH and support HARQ-ACK feedback is a technical problem that needs to be solved at present.
发明内容Summary of the invention
本发明实施例的目的是提供一种PDSCH的调度方法、网络设备和终端设备,以使得可以通过特定的DCI调度广播或多播PDSCH。The purpose of the embodiments of the present invention is to provide a PDSCH scheduling method, network equipment and terminal equipment, so that the broadcast or multicast PDSCH can be scheduled through a specific DCI.
第一方面,提供了一种PDSCH的调度方法,应用于基站,所述方法包括:向终端设备发送所述终端设备特定的下行控制信息(DCI),所述DCI用于调度物理下行共享信道(PDSCH)传输,通过所述DCI指示调度的所述PDSCH的类型或加扰调度的所述PDSCH所使用的无线网络临时标识(RNTI),其中,加扰不同类型的所述PDSCH使用的RNTI不同,所述PDSCH的类型包括:单播PDSCH或组播PDSCH。In the first aspect, a PDSCH scheduling method is provided, which is applied to a base station, and the method includes: sending the terminal device-specific downlink control information (DCI) to a terminal device, and the DCI is used to schedule a physical downlink shared channel ( PDSCH) transmission, indicating the type of the scheduled PDSCH or the radio network temporary identifier (RNTI) used by the scheduled PDSCH scrambling through the DCI, wherein the RNTI used to scramble the different types of the PDSCH is different, The type of PDSCH includes: unicast PDSCH or multicast PDSCH.
第二方面,提供了一种PDSCH接收方法,应用于终端设备,所述方法包括:接收所述终端设备特定的下行控制信息(DCI);根据所述DCI所指示的PDSCH的类型或所述DCI所指示的加扰调度的PDSCH所使用的RNTI,接收目标PDSCH,其中,所述PDSCH的类型包括:单播PDSCH或组播PDSCH。In a second aspect, a PDSCH receiving method is provided, which is applied to a terminal device, and the method includes: receiving downlink control information (DCI) specific to the terminal device; according to the type of PDSCH indicated by the DCI or the DCI The indicated RNTI used for the scrambled scheduled PDSCH receives the target PDSCH, where the type of the PDSCH includes: unicast PDSCH or multicast PDSCH.
第三方面,提供了一种网络设备,包括:发送模块,用于向终端设备发送所述终端设备特定的DCI,所述DCI用于调度PDSCH传输,通过所述DCI指示调度的所述PDSCH的类型或加扰调度的所述PDSCH所使用的无线网络临时标识(RNTI),其中,加扰不同类型的所述PDSCH使用的RNTI不同,所述PDSCH的类型包括:单播PDSCH或组播PDSCH。In a third aspect, a network device is provided, including: a sending module, configured to send the terminal device-specific DCI to a terminal device, the DCI is used to schedule PDSCH transmission, and the DCI indicates the scheduled PDSCH The type or the radio network temporary identifier (RNTI) used by the PDSCH for scrambling scheduling, wherein the RNTI used for scrambling the PDSCH of different types is different, and the type of the PDSCH includes: unicast PDSCH or multicast PDSCH.
第四方面,提供了一种终端设备,包括:第一接收模块,用于接收所述终端设备特定的下行控制信息(DCI),所述DCI用于调度物理下行共享信道(PDSCH)传输;第二接收模块,用于根据所述DCI所指示的所述PDSCH的类型或所述DCI所指示的加扰所述PDSCH所使用的RNTI,接收目标PDSCH,其中,所述PDSCH的类型包括:单播PDSCH或组播PDSCH。In a fourth aspect, a terminal device is provided, including: a first receiving module, configured to receive downlink control information (DCI) specific to the terminal device, where the DCI is used to schedule physical downlink shared channel (PDSCH) transmission; The second receiving module is configured to receive the target PDSCH according to the type of the PDSCH indicated by the DCI or the RNTI used to scramble the PDSCH indicated by the DCI, wherein the type of the PDSCH includes: unicast PDSCH or multicast PDSCH.
第五方面,提供一种网络设备,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如第一方面所述的方法的步骤。In a fifth aspect, a network device is provided, including: a memory, a processor, and a computer program that is stored on the memory and can run on the processor. When the computer program is executed by the processor, the following The steps of the method described in one aspect.
第六方面,提供一种终端设备,包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如第二方面所述的方法的步骤。In a sixth aspect, a terminal device is provided, including a memory, a processor, and a computer program stored on the memory and capable of running on the processor. When the computer program is executed by the processor, the second The steps of the method described in the aspect.
第七方面,提供了一种计算机可读存储介质,所述计算机可读存储介质上存储计算机程序,所述计算机程序被处理器执行时实现如第一方面或第二方面所述的方法的步骤。In a seventh aspect, a computer-readable storage medium is provided, and a computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, the steps of the method according to the first aspect or the second aspect are implemented .
在本发明实施例中,基站向UE发送所述UE特定的DCI,该DCI用于调度PDSCH传输,通过DCI指示调度的PDSCH的类型或者指示加扰调度的PDSCH所使用的RNTI,从而使得UE在接收到DCI之后,可以获知该DCI调度的PDSCH的类型,或加扰调度的PDSCH所使用的RNTI,进而使得UE可以确定后续应该接收的PDSCH。另外,由于基站可以通过特定的DCI调度组播PDSCH,从而可以指示特定控制信息给不同UE,以支持组播PDSCH的HARQ-ACK反馈。In the embodiment of the present invention, the base station sends the UE-specific DCI to the UE. The DCI is used to schedule PDSCH transmission. The DCI indicates the type of the scheduled PDSCH or the RNTI used by the scrambled PDSCH, so that the UE is After receiving the DCI, the type of the PDSCH scheduled by the DCI or the RNTI used by the scheduled PDSCH can be learned, so that the UE can determine the PDSCH that should be received subsequently. In addition, since the base station can schedule the multicast PDSCH through a specific DCI, it can indicate specific control information to different UEs to support HARQ-ACK feedback of the multicast PDSCH.
附图说明Description of the drawings
此处所说明的附图用来提供对本发明的进一步理解,构成本发明的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:The drawings described here are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and the description thereof are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:
图1是本发明实施例提供的PDSCH的调度方法的一种流程示意图;FIG. 1 is a schematic flowchart of a PDSCH scheduling method provided by an embodiment of the present invention;
图2是本发明实施例提供的组播PDSCH的调度示意图;Figure 2 is a schematic diagram of multicast PDSCH scheduling provided by an embodiment of the present invention;
图3是本发明实施例提供的PDSCH接收方法的一种流程示意图;FIG. 3 is a schematic flowchart of a PDSCH receiving method provided by an embodiment of the present invention;
图4是本发明实施例提供的一种DAI计算的示意图;Figure 4 is a schematic diagram of a DAI calculation provided by an embodiment of the present invention;
图5是本发明实施例提供的另一种DAI计算的示意图;FIG. 5 is a schematic diagram of another DAI calculation provided by an embodiment of the present invention;
图6是本发明实施例提供的一种网络设备的结构示意图;Figure 6 is a schematic structural diagram of a network device provided by an embodiment of the present invention;
图7是本发明实施例提供的一种终端设备的结构示意图;FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
图8是本发明实施例提供的一种终端设备的结构示意图;FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
图9是本发明实施例提供的一种网络设备的结构示意图。Fig. 9 is a schematic structural diagram of a network device provided by an embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
本发明的技术方案,可以应用于各种通信系统,例如:全球移动通讯系统(GSM,Global System of Mobile communication),码分多址(CDMA,Code Division Multiple Access)系统,宽带码分多址(WCDMA,Wideband Code Division Multiple Access),通用分组无线业务(GPRS,General Packet Radio Service),长期演进(LTE,Long Term Evolution)/增强长期演进(LTE-A,Long Term Evolution Advanced),NR(New Radio)等。The technical solution of the present invention can be applied to various communication systems, such as: Global System of Mobile Communication (GSM), Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access (GSM) system. WCDMA, Wideband Code Division Multiple Access, General Packet Radio Service (GPRS, General Packet Radio Service), Long Term Evolution (LTE, Long Term Evolution)/Enhanced Long Term Evolution (LTE-A, Long Term Evolution Advanced), NR (New Radio) )Wait.
用户设备(UE,User Equipment),也可称之为终端设备、移动终端(Mobile Terminal)、移动用户设备等,可以经无线接入网(例如,RAN,Radio Access Network)与一个或多个核心网进行通信,用户设备可以是移动终端,如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。User equipment (UE, User Equipment), also called terminal equipment, mobile terminal (Mobile Terminal), mobile user equipment, etc., can be connected to one or more cores via a radio access network (for example, RAN, Radio Access Network) The user equipment can be a mobile terminal, such as a mobile phone (or “cellular” phone) and a computer with a mobile terminal. For example, it can be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device. , They exchange language and/or data with the wireless access network.
基站,可以是GSM或CDMA中的基站(BTS,Base Transceiver Station),也可以是WCDMA中的基站(NodeB),还可以是LTE中的演进型基站(eNB或e-NodeB,evolutional Node B)及5G基站(gNB),本发明并不限定,但为描述方便,下述实施例以gNB为例进行说明。The base station can be a base station (BTS, Base Transceiver Station) in GSM or CDMA, a base station (NodeB) in WCDMA, or an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE. The 5G base station (gNB) is not limited in the present invention, but for the convenience of description, the following embodiments take gNB as an example for description.
以下结合附图,详细说明本发明各实施例提供的技术方案。The technical solutions provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
图1为本发明实施例中提供的PDSCH的调度方法的一种流程示意图,该方法100可以由基站执行。换言之,所述方法可以由安装在基站上的软件或硬件来执行。如图1所示,该方法可以包括以下步骤。FIG. 1 is a schematic flowchart of a PDSCH scheduling method provided in an embodiment of the present invention, and the method 100 may be executed by a base station. In other words, the method can be executed by software or hardware installed on the base station. As shown in Figure 1, the method may include the following steps.
S110,向终端设备发送所述终端设备特定的DCI,所述DCI用于调度PDSCH传输,并通过所述DCI指示调度的所述PDSCH的类型或加扰调度的所述PDSCH所使用的RNTI,其中,加扰不同类型的所述PDSCH使用的RNTI不同,所述PDSCH的类型包括:单播PDSCH或组播(group-cast)PDSCH。S110. Send the terminal device specific DCI to the terminal device, the DCI is used to schedule PDSCH transmission, and the DCI indicates the type of the scheduled PDSCH or the RNTI used by the scrambled scheduled PDSCH, where RNTIs used to scramble different types of the PDSCH are different, and the types of the PDSCH include: unicast PDSCH or group-cast PDSCH.
其中,组播PDSCH还可以包括但不限于多播(multicast)PDSCH和广播(broadcast)PDSCH,主要是指通过相同的物理资源发送给多个终端设备的PDSCH。Wherein, the multicast PDSCH may also include, but is not limited to, multicast PDSCH and broadcast PDSCH, and mainly refers to PDSCH sent to multiple terminal devices through the same physical resource.
其中,所述DCI用于调度PDSCH传输还可以包括:所述DCI用于激活半静态调度(Semi-Persistent Scheduling,SPS)PDSCH传输,并通过所述DCI指示其激活所述PDSCH的类型或加扰调度的所述PDSCH所使用的RNTI。即通过激活SPS PDSCH的DCI指示该SPS PDSCH是单播PDSCH或组播PDSCH,或者SPS PDSCH的加扰RNTI。The use of the DCI to schedule PDSCH transmission may also include: the DCI is used to activate Semi-Persistent Scheduling (SPS) PDSCH transmission, and instruct it to activate the PDSCH type or scrambling through the DCI RNTI used by the scheduled PDSCH. That is, by activating the DCI of the SPS PDSCH, it is indicated that the SPS PDSCH is a unicast PDSCH or a multicast PDSCH, or a scrambled RNTI of the SPS PDSCH.
在本发明实施例中,如果DCI调度的为组播PDSCH,则向不同UE发送的DCI调度的PDSCH相同。即多个DCI指示的PDSCH相同(可以包括PDSCH的时频域资源分配,MCS等信息)。其中,不同UE可以包括加入同一组播业务的UE,或者是同一广播范围内的UE。如图2所示,基站通过不同UE的PDCCH调度同一PDSCH,即组播PDSCH。In the embodiment of the present invention, if the DCI scheduled is a multicast PDSCH, the DCI scheduled PDSCHs sent to different UEs are the same. That is, the PDSCHs indicated by multiple DCIs are the same (may include PDSCH time-frequency domain resource allocation, MCS and other information). Among them, different UEs may include UEs joining the same multicast service, or UEs within the same broadcast range. As shown in Figure 2, the base station schedules the same PDSCH through PDCCHs of different UEs, that is, multicast PDSCH.
在本发明实施例中,发送给UE特定的DCI可以为:通过UE特定的PDCCH发送的DCI,或者,通过UE特定搜索空间发送的DCI,或者通过UE特定搜索空间上的PDCCH发送的DCI等。In the embodiment of the present invention, the specific DCI sent to the UE may be: the DCI sent through the UE-specific PDCCH, or the DCI sent through the UE-specific search space, or the DCI sent through the PDCCH on the UE-specific search space, etc.
在本发明实施例中,基站向UE发送所述UE特定的DCI,该DCI用于调度PDSCH传输,通过DCI指示调度的PDSCH的类型或者指示加扰调度的PDSCH所使用的RNTI。从而使得UE在接收到DCI之后,可以获知该 DCI调度的PDSCH的类型,或加扰调度的PDSCH所使用的RNTI,进而使得UE可以确定后续应该接收的PDSCH。In the embodiment of the present invention, the base station sends the UE-specific DCI to the UE. The DCI is used to schedule PDSCH transmission, and the DCI indicates the type of the scheduled PDSCH or the RNTI used for the scrambled PDSCH. Thus, after receiving the DCI, the UE can learn the type of the PDSCH scheduled by the DCI, or the RNTI used to scramble the scheduled PDSCH, so that the UE can determine the PDSCH that should be received subsequently.
在一个可能的实现方式中,通过DCI指示调度的PDSCH的类型或加扰调度的PDSCH所使用的PNTI包括但不限于下面的(1)至(4)中的任意一项。In a possible implementation manner, the type of the scheduled PDSCH indicated by the DCI or the PNTI used for the scrambled scheduled PDSCH includes but is not limited to any one of (1) to (4) below.
(1)通过所述DCI中包含的第一指示域的取值,指示所述PDSCH的类型或所述RNTI,其中,所述第一指示域的不同取值指示不同的PDSCH的类型或不同的RNTI。(1) Indicate the PDSCH type or the RNTI through the value of the first indicator field included in the DCI, wherein different values of the first indicator field indicate different PDSCH types or different RNTI.
在相关技术中,基站使用UE特定DCI调度单播PDSCH,且PDSCH加扰使用的RNTI与加扰DCI CRC的RNTI相同。因此,在一个可能的实现方式中,为了使UE能够区分当前DCI调度的PDSCH是单播PDSCH,还是组播PDSCH,即UE需要知道PDSCH加扰所使用的RNTI。因此,基站通过DCI指示PDSCH加扰所使用的RNTI。例如,假设组播PDSCH传输使用的是g-RNTI,DCI CRC加扰使用的时C-RNTI,则DCI中可以包含X比特(例如,X=1)用于指示PDSCH加扰所使用的RNTI与DCI CRC加扰的RNTI相同或者是不同,以指示调度的PDSCH的类型或加扰调度的PDSCH所使用的RNTI。例如,该比特的值为1时,表示PDSCH加扰所使用的RNTI与DCI CRC加扰的RNTI相同,即均为C-RNTI,或者说当前调度的PDSCH为单播PDSCH;而该比特的值为0时,表示PDSCH加扰所使用的RNTI与DCI CRC加扰的RNTI不同,PDSCH加扰使用的RNTI为g-RNTI,或者说指示当前调度的PDSCH为组播PDSCH。In related technologies, the base station uses UE-specific DCI to schedule unicast PDSCH, and the RNTI used for PDSCH scrambling is the same as the RNTI used for scrambling DCI and CRC. Therefore, in a possible implementation manner, in order for the UE to distinguish whether the PDSCH scheduled by the current DCI is a unicast PDSCH or a multicast PDSCH, the UE needs to know the RNTI used for PDSCH scrambling. Therefore, the base station indicates the RNTI used for PDSCH scrambling through DCI. For example, assuming that multicast PDSCH transmission uses g-RNTI and DCI and C-RNTI are used for CRC scrambling, DCI can include X bits (for example, X=1) to indicate the RNTI and RNTI used for PDSCH scrambling. The RNTI scrambled by the DCI CRC is the same or different to indicate the type of the scheduled PDSCH or the RNTI used for the scrambled PDSCH. For example, when the value of this bit is 1, it means that the RNTI used for PDSCH scrambling is the same as the RNTI used for DCI CRC scrambling, that is, both are C-RNTIs, or the currently scheduled PDSCH is a unicast PDSCH; and the value of this bit When it is 0, it means that the RNTI used for PDSCH scrambling is different from the RNTI used for DCI CRC scrambling. The RNTI used for PDSCH scrambling is g-RNTI, or it indicates that the currently scheduled PDSCH is a multicast PDSCH.
例如,可以在DCI中包含RNTI指示域,用于指示该DCI所调度的PDSCH加扰时使用的RNTI序列,而预先约定PDSCH的类型与加扰PDSCH时使用的RNTI序列的对应关系。因此,通过DCI的RNTI指示域的取值,可以指示不同的PDSCH的类型和不同的RNTI。假设基站通过使用DCI格式1-1或DCI格式1-2和C-RNTI或MCS-C-RNTI调度组播PDSCH,并在DCI中 指示所调度的PDSCH加扰使用的RNTI(可以是在DCI 1_1或DCI 1_2中新增指示域,如RNTI indicator(RNTI指示域)或者重用现有域)是单播PDSCH加扰使用的C-RNTI或MCS-C-RNT,还是组播PDSCH加扰使用的g-RNTI,同时DCI中还包含其他指示域(可以与unicast PDSCH调度时相同的域)。For example, the RNTI indication field may be included in the DCI to indicate the RNTI sequence used when the PDSCH scheduled by the DCI is scrambled, and the correspondence between the type of the PDSCH and the RNTI sequence used when the PDSCH is scrambled is agreed in advance. Therefore, through the value of the RNTI indication field of the DCI, different PDSCH types and different RNTIs can be indicated. Suppose that the base station schedules multicast PDSCH by using DCI format 1-1 or DCI format 1-2 and C-RNTI or MCS-C-RNTI, and indicates the RNTI used for scrambling the scheduled PDSCH in the DCI (it can be in DCI 1_1 Or the newly added indicator field in DCI 1_2, such as RNTI indicator (RNTI indicator field) or reuse of existing field) is the C-RNTI or MCS-C-RNT used for unicast PDSCH scrambling, or the g used for multicast PDSCH scrambling -RNTI, and DCI also contains other indication fields (which can be the same as the unicast PDSCH scheduling).
或者,也可以重用DCI中一个或多个域,通过一个或多个域的特定组合或状态来指示所述PDSCH的类型或所述RNTI。例如,可以通过重用DCI中的现有一个或多个域来来指示调度的是单播PDSCH还是组播PDSCH。例如DCI中的冗余版本(Redundancy Version,RV)、混合自动重传-应答(HARQ-ACK)或时域资源分配(Time Domain Resource Allocation,TDRA)等域。Alternatively, one or more domains in the DCI may be reused, and the type of the PDSCH or the RNTI may be indicated through a specific combination or state of one or more domains. For example, one or more existing domains in the DCI can be reused to indicate whether a unicast PDSCH or a multicast PDSCH is scheduled. For example, the Redundancy Version (RV), Hybrid Automatic Repeat-Acknowledgement (HARQ-ACK), or Time Domain Resource Allocation (TDRA) domains in DCI.
(2)通过所述DCI所在的控制资源集合(Control Resource set,CORESET)或搜索空间(search space,SS),指示所述PDSCH的类型或所述RNTI,其中,所述DCI位于不同的CORESET或搜索空间对应不同的PDSCH的类型或不同的RNTI。(2) Indicate the type of the PDSCH or the RNTI through the control resource set (Control Resource set, CORESET) or search space (SS) where the DCI is located, where the DCI is located in a different CORESET or The search space corresponds to different PDSCH types or different RNTIs.
即可以根据DCI所在的CORESET或者DCI所在的CORESET组或池(group/pool)(其中,每个组或池中可以包含一至多个CORESET)等,或DCI所在的SS或者DCI所在的SS组或池(其中,每个组/池中可以包含一至多个SS)(group/pool)等确定。例如,当DCI格式1_1或1-2的DCI在CORESET A时调度的是单播PDSCH,当DCI格式1_1或1-2的DCI在CORESET B时调度的是组播PDSCH。That is, it can be based on the CORESET where DCI is located or the CORESET group or pool where DCI is located (group/pool) (wherein each group or pool can contain one or more CORESET), etc., or the SS where DCI is located or the SS group where DCI is located or The pool (where each group/pool can contain one or more SSs) (group/pool) is determined. For example, when the DCI of the DCI format 1_1 or 1-2 is scheduled at CORESET A, the unicast PDSCH is scheduled, and when the DCI of the DCI format 1_1 or 1-2 is scheduled at CORESET B, the multicast PDSCH is scheduled.
(3)通过所述DCI使用的格式,指示所述PDSCH的类型或所述RNTI,其中,不同格式的DCI对应不同的PDSCH的类型或不同的RNTI。(3) Indicate the type of the PDSCH or the RNTI through the format used by the DCI, where the DCI of different formats corresponds to different PDSCH types or different RNTIs.
例如,DCI使用DCI 1_1格式调度的为单播PDSCH,DCI使用DCI 1_2格式调度的为组播PDSCH。For example, DCI uses DCI 1_1 format to schedule unicast PDSCH, and DCI uses DCI 1_2 format to schedule multicast PDSCH.
另外,还可以将DCI使用的格式与DCI中的第一指示域相结合的方式指示所述PDSCH的类型或所述RNTI。例如,DCI 1_0用于调度的单播PDSCH, 即使用DCI 1_0格式的DCI调度的PDSCH均为单播PDSCH,使用DCI 1_1调度组播PDSCH或单播PDSCH,并通过DCI中的特定域指示调度的PDSCH的类型。In addition, the format used by the DCI may also be combined with the first indication field in the DCI to indicate the type of the PDSCH or the RNTI. For example, DCI 1_0 is used for scheduled unicast PDSCH, that is, the PDSCHs scheduled using DCI 1_0 format are all unicast PDSCHs, and DCI 1_1 is used to schedule multicast PDSCH or unicast PDSCH, and the specific domain in DCI indicates the scheduled PDSCH The type of PDSCH.
(4)通过加扰所述DCI的循环冗余校验CRC使用的RNTI,指示所述PDSCH的类型或所述RNTI,其中,加扰所述DCI的CRC使用的不同RNTI对应不同的PDSCH的类型或不同的RNTI。(4) By scrambling the RNTI used by the cyclic redundancy check CRC of the DCI to indicate the type of the PDSCH or the RNTI, where different RNTIs used for the CRC scrambling the DCI correspond to different PDSCH types Or a different RNTI.
例如,某个DCI使用C-RNTI加扰CRC时指示单播PDSCH,使用X-RNTI加扰CRC时指示组播PDSCH。For example, when a certain DCI uses C-RNTI to scramble the CRC, it indicates a unicast PDSCH, and when an X-RNTI is used to scramble the CRC, it indicates a multicast PDSCH.
上述DCI格式或加扰CRC的RNTI与PDSCH的类型之间的关系可以是高层信令配置,或者预定义等方式确定。The relationship between the above-mentioned DCI format or the type of RNTI for scrambling CRC and PDSCH may be configured by high-level signaling, or determined in a predefined manner.
在一个可能的实现方式中,所述DCI中还包括以下(1)至(4)中的至少一项。In a possible implementation manner, the DCI further includes at least one of the following (1) to (4).
(1)下行链路分配索引(Downlink assignment index,DAI)。(1) Downlink assignment index (DAI).
在一个可能的实现方式中,可以针对不同的所述PDSCH的类型或者不同RNTI加扰的PDSCH,所述DCI中的DAI分别进行计算。即基站在计算DAI时,针对不同的PDSCH的类型或者不同RNTI加扰的PDSCH,分别进行累计计算。例如,基站可以针对同一个UE,维护两个DAI计数器,即第一DAI计数器和第二DAI计数器,第一DAI计数器用于在调度单播PDSCH时进行累计,第二DAI计数器用于在调度组播PDSCH时进行累计。基站根据当前发送的DCI调度的PDSCH的类型或调度的PDSCH加扰时使用的RNTI,确定DCI中携带的为第一DAI计数器的值还是第二DAI计数器的值。例如,DCI中可以包含2比特的DAI域,如果当前PDCCH调度的是单播PDSCH,则累计第一DAI计数器,并在DCI的DAI域中填入第一DAI计数器的值。如果调度的是组播PDSCH,则累计第二DAI计数器,并在DCI的DAI域中填入第二DAI计数器的值。而在UE侧,则分别为单播PDSCH和组播PDSCH生成HARQ-ACK(子)码本,累计DAI(count DAI,C-DAI) 的值和总DAI(total DAI,t-DAI)值分别应用于每个HARQ-ACK(子)码本。该方式中不同类型或RNTI加扰的PDSCH的DAI分别累计,UE针对不同类型或RNTI的PDSCH分别构建HARQ-ACK(子)码本,减少了对现有单播PDSCH码本构建的影响,避免了组播PDSCH对单播PDSCH调度和反馈的影响。In a possible implementation manner, the DAI in the DCI may be calculated separately for different PDSCH types or PDSCH scrambled by different RNTIs. That is, when calculating DAI, the base station performs cumulative calculations for different PDSCH types or PDSCH scrambled by different RNTIs. For example, the base station can maintain two DAI counters for the same UE, namely the first DAI counter and the second DAI counter. Accumulate when broadcasting PDSCH. The base station determines whether the value of the first DAI counter or the value of the second DAI counter carried in the DCI is based on the type of the PDSCH scheduled by the currently transmitted DCI or the RNTI used when the scheduled PDSCH is scrambled. For example, the DCI may include a 2-bit DAI field. If the current PDCCH schedules a unicast PDSCH, the first DAI counter is accumulated, and the value of the first DAI counter is filled in the DAI field of the DCI. If the multicast PDSCH is scheduled, the second DAI counter is accumulated, and the value of the second DAI counter is filled in the DAI field of the DCI. On the UE side, HARQ-ACK (sub)codebooks are generated for unicast PDSCH and multicast PDSCH respectively, and the accumulated DAI (count DAI, C-DAI) value and total DAI (total DAI, t-DAI) value are respectively generated Applies to each HARQ-ACK (sub)codebook. In this way, the DAI of PDSCHs scrambled by different types or RNTIs are accumulated separately, and the UE constructs HARQ-ACK (sub)codebooks for PDSCHs of different types or RNTIs, which reduces the impact on the existing unicast PDSCH codebook construction and avoids The impact of multicast PDSCH on unicast PDSCH scheduling and feedback is discussed.
或者,在另一个可能的实现方式中,也可以针对所有的所述PDSCH的类型或者所有RNTI加扰的PDSCH,所述DCI中的DAI进行累计计算。即基站在计算DAI时,针对不同的PDSCH的类型或者不同RNTI加扰的PDSCH,统一进行累计计算。该方式中不同类型或RNTI加扰的PDSCH的DAI统一累计,UE针对不同类型或RNTI的PDSCH构建一个HARQ-ACK(子)码本,在UE端HARQ-ACK反馈时不需要区分不同的PDSCH类型或PDSCH对应的RNTI,简化UE的流程。Or, in another possible implementation manner, for all the PDSCH types or all RNTI scrambled PDSCHs, the DAI in the DCI may be cumulatively calculated. That is, when calculating the DAI, the base station performs a unified cumulative calculation for different PDSCH types or PDSCH scrambled by different RNTIs. In this method, the DAI of PDSCHs scrambled by different types or RNTIs is accumulated uniformly. The UE constructs a HARQ-ACK (sub) codebook for PDSCHs of different types or RNTIs, and there is no need to distinguish different PDSCH types during HARQ-ACK feedback at the UE. Or the RNTI corresponding to the PDSCH, which simplifies the process of the UE.
(2)PDSCH到HARQ反馈定时指示信息。该指示信息用于指示PDSCH到HARQ-ACK反馈的定时。(2) PDSCH to HARQ feedback timing indication information. The indication information is used to indicate the timing from PDSCH to HARQ-ACK feedback.
在具体应用中,PDSCH到HARQ反馈定时指示信息可以用于指示预定参数集合中的参数。例如,网络侧可以通过无线资源控制(Radio Resource Control,RRC)指令预先配置所述预定参数集合,或者,通过协议规定配置该预定参数集合。例如,预定参数集合中预先配置8个参数值,DCI中可以包括一个3比特的PDSCH到HARQ反馈定时指示域(PDSCH-to-HARQ_feedback timing indicator),通过该指示域,指示预定参数集合中的某个参数值。In a specific application, the PDSCH to HARQ feedback timing indication information may be used to indicate the parameters in the predetermined parameter set. For example, the network side may pre-configure the predetermined parameter set through radio resource control (Radio Resource Control, RRC) instructions, or configure the predetermined parameter set through protocol provisions. For example, 8 parameter values are pre-configured in the predetermined parameter set, and the DCI may include a 3-bit PDSCH-to-HARQ_feedback timing indicator (PDSCH-to-HARQ_feedback timing indicator), which indicates a certain parameter in the predetermined parameter set. Parameter values.
在一个可能的实现方式中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH,所述预定参数集合不相同。即网络侧分别为单播PDSCH和组播PDSCH配置一个预定参数集合或者分别规定单播PDSCH和组播PDSCH对应的预定参数集合。预定参数集合与UE能力和业务需求有关,由于组播PDSCH对应的预定参数集合需要考虑能力最差的UE,可能需要配置较大值 (例如10,11,12,13),而为单播PDSCH对应的预定参数集合,只需要考虑单播PDSCH的UE的能力,可以配置值比较小的预定参数集合(例如4,5,6,7)。该方式中不同类型的PDSCH或RNTI加扰的PDSCH对应的预定参数集合分别确定,可以较少每种PDSCH对应预定参数集合中的元素数目,较少DCI中相关指示域的比特开销。In a possible implementation manner, for different types of PDSCHs or PDSCHs scrambled by different RNTIs, the predetermined parameter sets are different. That is, the network side respectively configures a predetermined parameter set for unicast PDSCH and multicast PDSCH, or respectively specifies predetermined parameter sets corresponding to unicast PDSCH and multicast PDSCH. The predetermined parameter set is related to the UE capabilities and service requirements. Since the predetermined parameter set corresponding to the multicast PDSCH needs to consider the UE with the worst capability, a larger value (for example, 10, 11, 12, 13) may need to be configured instead of unicast PDSCH The corresponding predetermined parameter set only needs to consider the UE capability of unicast PDSCH, and a predetermined parameter set with a relatively small value (for example, 4, 5, 6, 7) can be configured. In this manner, the predetermined parameter sets corresponding to different types of PDSCH or RNTI scrambled PDSCH are determined separately, which can reduce the number of elements in the predetermined parameter set corresponding to each PDSCH, and reduce the bit overhead of the relevant indication field in the DCI.
或者,在另一个可能的实现方式中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH,所述预定参数集合相同。即网络侧为单播PDSCH和组播PDSCH统一配置一个预定参数集合或规定一个预定参数集合。该方式中不需要针对不同类型的PDSCH或RNTI加扰的PDSCH分别确定其对应的预定参数集合,简化参数集合配置,且UE在确定对应的参数集合时不需要区分不同类型的PDSCH或不同RNTI加扰的PDSCH。Or, in another possible implementation manner, for different types of PDSCHs or PDSCHs scrambled by different RNTIs, the predetermined parameter sets are the same. That is, the network side uniformly configures or specifies a predetermined parameter set for unicast PDSCH and multicast PDSCH. In this method, there is no need to determine the corresponding predetermined parameter sets for different types of PDSCHs or RNTI scrambled PDSCHs, simplifying the parameter set configuration, and the UE does not need to distinguish between different types of PDSCHs or different RNTIs when determining the corresponding parameter sets. Disturbed PDSCH.
(3)物理上行控制信道(Physical Uplink Control Channel,PUCCH)的资源指示信息(PUCCH resource indicator,PRI),该资源指示信息用于指示PDSCH对应的HARQ-ACK反馈的PUCCH资源。(3) Physical Uplink Control Channel (PUCCH) resource indicator information (PUCCH resource indicator, PRI), the resource indicator information is used to indicate the PUCCH resource of the HARQ-ACK feedback corresponding to the PDSCH.
在具体应用中,PUCCH的资源指示信息可以用于指示预定PUCCH资源集合中的资源。例如,网络侧可以通过RRC指令配置预定PUCCH资源集合,或者,通过协议规定配置该预定PUCCH资源集合。例如,预定PUCCH资源集合中包括多个资源,通过所述PUCCH资源指示信息可以指示当前的PUCCH资源为预定PUCCH资源集合中的一个资源。In a specific application, the resource indication information of the PUCCH may be used to indicate resources in a predetermined PUCCH resource set. For example, the network side may configure a predetermined PUCCH resource set through RRC instructions, or configure the predetermined PUCCH resource set through protocol provisions. For example, the predetermined PUCCH resource set includes multiple resources, and the PUCCH resource indication information can indicate that the current PUCCH resource is one resource in the predetermined PUCCH resource set.
在一个可能的实现方式中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH,所述预定PUCCH资源集合不同。即网络侧分别为单播PDSCH和组播PDSCH对应的HARQ-ACK反馈PUCCH资源配置一个预定PUCCH资源集合。该方式可以分别根据不同业务的特点灵活配置相应的PUCCH资源。In a possible implementation manner, for different types of PDSCHs or PDSCHs scrambled by different RNTIs, the predetermined PUCCH resource sets are different. That is, the network side respectively configures a predetermined PUCCH resource set for the HARQ-ACK feedback PUCCH resources corresponding to the unicast PDSCH and the multicast PDSCH. In this way, the corresponding PUCCH resources can be flexibly configured according to the characteristics of different services.
或者,在另一个可能的实现方式中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH,所述预定PUCCH资源集合相同。即网络侧为单播PDSCH和组播PDSCH对应的HARQ-ACK反馈PUCCH资源统一配置预定PUCCH 资源集合。该方式可以简化资源配置以及确定过程。Or, in another possible implementation manner, for different types of PDSCHs or PDSCHs scrambled by different RNTIs, the predetermined PUCCH resource sets are the same. That is, the network side uniformly configures a predetermined PUCCH resource set for the HARQ-ACK feedback PUCCH resources corresponding to the unicast PDSCH and the multicast PDSCH. This method can simplify the resource allocation and determination process.
(4)PUCCH的传输功率控制命令(TPC command for scheduled PUCCH)。(4) PUCCH transmission power control command (TPC command for scheduled PUCCH).
在一个可能的实现方式中,基站可以向终端设备发送配置信令,配置PUCCH的功率控制调整状态(例如,Two PUCCH-PC-AdjustmentStates)配置信息,配置PUCCH的功率控制参数。其中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH对应DCI调度的PUCCH,配置相同的所述功率控制调整状态配置信息,即统一配置所述功率控制调整状态配置信息。或者,也可以针对不同类型的PDSCH或不同RNTI加扰的PDSCH对应DCI调度的PUCCH,配置不同的所述功率控制调整状态配置信息。具体可以根据实际需要确定,即分别配置所述功率控制调整状态配置信息。In a possible implementation manner, the base station may send configuration signaling to the terminal device, configure the power control adjustment state (for example, Two PUCCH-PC-AdjustmentStates) configuration information of the PUCCH, and configure the power control parameters of the PUCCH. Wherein, for different types of PDSCHs or PDSCHs scrambled by different RNTIs corresponding to the PUCCH scheduled by DCI, the same power control adjustment state configuration information is configured, that is, the power control adjustment state configuration information is uniformly configured. Alternatively, for different types of PDSCHs or PDSCHs scrambled by different RNTIs corresponding to the PUCCH scheduled by DCI, different power control adjustment state configuration information may be configured. Specifically, it can be determined according to actual needs, that is, the power control adjustment state configuration information is configured separately.
在一个可能的实现方式中,PUCCH传输功率控制命令中向UE指示PDSCH对应的HARQ-ACK反馈的PUCCH的传输功率。在具体应用中,PUCCH传输功率控制命令中指示的传输功率,可以不是传输功率的绝对值,而是相对于上一次PUCCH传输功率的相对值。其中,针对不同的所述PDSCH的类型或不同RNTI加扰的PDSCH对应的DCI,所述PUCCH传输功率控制命令所指示的传输功率,分别累计。例如,假设当前DCI调度的PDSCH为组播,则该DCI中的PUCCH传输功率控制命令所指示的传输功率是相对于上一次组播PDSCH对应的PUCCH的传输功率的相对值。例如,增加1dB,或减少1dB等。该方式可以分别根据不同业务的特点灵活配置相应的PUCCH功率调制状态。或者,针对所有的所述PDSCH的类型或所有RNTI加扰的PDSCH对应的DCI,所述PUCCH传输功率控制命令所指示的传输功率,共同累计。该方式中简化了配置过程,且UE不需要区分不同类型PDSCH对应的PUCCH,简化UE实现。例如,假设无论当前DCI调度的PDSCH为单播还是组播,该DCI中的PUCCH传输功率控制命令所指示的传输功率是相对于上一次调度的PDSCH对应的PUCCH的传输功率的相对值。In a possible implementation manner, the PUCCH transmission power control command indicates to the UE the transmission power of the PUCCH fed back by the HARQ-ACK corresponding to the PDSCH. In specific applications, the transmission power indicated in the PUCCH transmission power control command may not be the absolute value of the transmission power, but a relative value relative to the previous PUCCH transmission power. Wherein, for different PDSCH types or DCIs corresponding to PDSCHs scrambled by different RNTIs, the transmission power indicated by the PUCCH transmission power control command is accumulated respectively. For example, assuming that the PDSCH scheduled by the current DCI is multicast, the transmission power indicated by the PUCCH transmission power control command in the DCI is a relative value relative to the transmission power of the PUCCH corresponding to the last multicast PDSCH. For example, increase by 1dB, or decrease by 1dB, etc. In this way, the corresponding PUCCH power modulation state can be flexibly configured according to the characteristics of different services. Or, for all the PDSCH types or the DCI corresponding to all RNTI scrambled PDSCHs, the transmission power indicated by the PUCCH transmission power control command is collectively accumulated. In this manner, the configuration process is simplified, and the UE does not need to distinguish PUCCHs corresponding to different types of PDSCHs, which simplifies the UE implementation. For example, it is assumed that regardless of whether the PDSCH scheduled by the current DCI is unicast or multicast, the transmission power indicated by the PUCCH transmission power control command in the DCI is a relative value relative to the transmission power of the PUCCH corresponding to the PDSCH scheduled last time.
通过本发明实施例提供的上述技术方案,可以使用UE dedicated PDCCH 调度组播PDSCH,实现了数据信息的组播传输,节省了系统资源,提高了系统效率,同时由于PDCCH是单播传输,基站可以指示UE特定控制信息给不同UE,可以实现控制信息的灵活指示,例如,不同UE可以指示不同的PUCCH反馈资源,且不同UE可以采用不同的PUCCH传输功率,解决了组播PDSCH HARQ-ACK反馈中的资源指示和功率控制等问题。Through the above technical solutions provided by the embodiments of the present invention, UE dedicated PDCCH can be used to schedule multicast PDSCH, which realizes multicast transmission of data information, saves system resources, and improves system efficiency. At the same time, since PDCCH is unicast transmission, the base station can Instructing UE-specific control information to different UEs can achieve flexible indication of control information. For example, different UEs can indicate different PUCCH feedback resources, and different UEs can use different PUCCH transmission powers, which solves the problem of multicast PDSCH HARQ-ACK feedback. Issues such as resource indication and power control.
图3为本发明实施例提供的一种PDSCH接收方法的一种流程示意图,该方法300可以由终端设备执行。换言之,所述方法可以由安装在终端设备上的软件或硬件来执行。如图3所示,该方法可以包括以下步骤。FIG. 3 is a schematic flowchart of a method for receiving PDSCH according to an embodiment of the present invention. The method 300 may be executed by a terminal device. In other words, the method can be executed by software or hardware installed on the terminal device. As shown in Figure 3, the method may include the following steps.
S310,接收所述终端设备特定的DCI,所述DCI用于调度PDSCH传输。S310. Receive the specific DCI of the terminal device, where the DCI is used to schedule PDSCH transmission.
在本发明实施例中,UE可以通过其特定的PDCCH接收基站向其发送的DCI。例如,UE可以检测其特定的PDCCH并接收PDCCH上传输的DCI。In the embodiment of the present invention, the UE may receive the DCI sent to it by the base station through its specific PDCCH. For example, the UE can detect its specific PDCCH and receive the DCI transmitted on the PDCCH.
在本发明实施例中,基站发送DCI的方式可以参见方法100中的描述,在此不再赘述。In the embodiment of the present invention, the manner in which the base station sends the DCI can refer to the description in the method 100, which will not be repeated here.
S320,根据所述DCI所指示的PDSCH的类型或所述DCI所指示的加扰所述PDSCH所使用的RNTI,接收目标PDSCH,其中,所述PDSCH的类型包括:单播PDSCH或组播PDSCH。S320: Receive a target PDSCH according to the PDSCH type indicated by the DCI or the RNTI used for scrambling the PDSCH indicated by the DCI, where the type of the PDSCH includes: unicast PDSCH or multicast PDSCH.
在本发明实施例中,支持组播PDSCH的UE,可以检测并接收UE特定PDCCH,并根据接收到的DCI的指示接收PDSCH。其中,由于UE特定PDCCH既可以调度单播PDSCH,又可以调度组播PDSCH,且单播PDSCH和组播PDSCH加扰所使用的RNTI不同。因此,UE可以根据DCI的指示确定当前PDCCH调度的PDSCH是否为单播PDSCH。或者根据DCI指示确定PDSCH加扰所使用的RNTI。In the embodiment of the present invention, the UE supporting the multicast PDSCH can detect and receive the UE-specific PDCCH, and receive the PDSCH according to the indication of the received DCI. Among them, because the UE-specific PDCCH can schedule both unicast PDSCH and multicast PDSCH, and the RNTI used for scrambling of unicast PDSCH and multicast PDSCH is different. Therefore, the UE can determine whether the PDSCH scheduled by the current PDCCH is a unicast PDSCH according to the indication of the DCI. Or determine the RNTI used for PDSCH scrambling according to the DCI indication.
在一个可能的实现方式中,UE可以使用与方法100中基站通过DCI指示调度的PDSCH的类型和加扰调度的所述PDSCH所使用的RNTI对应的方式,确定接收到的所述DCI所指示的PDSCH的类型或所述DCI所指示的加扰调度的PDSCH。具体地,所述DCI所指示的所述PDSCH的类型或加扰所 述PDSCH所使用的RNTI通过以下(1)至(4)中的之一获取。In a possible implementation manner, the UE may use a method corresponding to the type of PDSCH indicated by the base station through the DCI in the method 100 and the RNTI used by the scrambled PDSCH to determine the received DCI The type of PDSCH or the scrambled scheduled PDSCH indicated by the DCI. Specifically, the type of the PDSCH indicated by the DCI or the RNTI used to scramble the PDSCH is obtained through one of the following (1) to (4).
(1)根据所述DCI中的第一指示域的取值,获取所述PDSCH的类型或所述RNTI,其中,所述第一指示域的不同取值指示不同的PDSCH的类型或不同的RNTI。(1) Obtain the PDSCH type or the RNTI according to the value of the first indicator field in the DCI, where different values of the first indicator field indicate different PDSCH types or different RNTIs .
其中,第一指示域包括但不限于RNTI指示域。例如,假设组播PDSCH传输使用的是g-RNTI,DCI CRC加扰使用的时C-RNTI,则DCI中可以包含1-比特(如新增RNTI indicator域)用于指示PDSCH加扰使用的RNTI域DCI CRC加扰的RNTI相同或者是不同,通过该指示域指示调度的PDSCH的类型,或者加扰调度的PDSCH所使用的RNTI。例如,该1比特为1时,表示PDSCH加扰使用的RNTI与DCI CRC加扰的RNTI相同,即均为C-RNTI,或者说当前调度的为单播PDSCH。若该比特为0时,表示PDSCH加扰使用的RNTI与DCI CRC加扰的RNTI不同,即PDSCH加扰使用的RNTI为g-RNTI,或者说当前调度的为组播PDSCH。Wherein, the first indicator field includes but is not limited to the RNTI indicator field. For example, assuming that multicast PDSCH transmission uses g-RNTI and DCI and C-RNTI are used for CRC scrambling, DCI can contain 1-bit (such as the newly added RNTI indicator field) to indicate the RNTI used for PDSCH scrambling The RNTI scrambled by the domain DCI and CRC is the same or different, and the type of the scheduled PDSCH or the RNTI used for the scrambled PDSCH is indicated by the indication field. For example, when the 1 bit is 1, it means that the RNTI used for PDSCH scrambling is the same as the RNTI used for DCI and CRC scrambling, that is, both are C-RNTIs, or that the currently scheduled unicast PDSCH is. If this bit is 0, it means that the RNTI used for PDSCH scrambling is different from the RNTI used for DCI and CRC scrambling, that is, the RNTI used for PDSCH scrambling is g-RNTI, or the currently scheduled multicast PDSCH is.
当然,所述第一指示域还可以为DCI中的其它指示域,具体可以参见方法100中的相关描述,在此不再赘述。Of course, the first indication field may also be another indication field in the DCI. For details, please refer to the related description in the method 100, which will not be repeated here.
(2)根据所述DCI所在的CORESET或搜索空间,获取所述PDSCH的类型或所述RNTI,其中,所述DCI位于不同的CORESET或搜索空间指示不同的PDSCH的类型或不同的RNTI。(2) Obtain the type of the PDSCH or the RNTI according to the CORESET or search space where the DCI is located, where the location of the DCI in different CORESET or search spaces indicates different PDSCH types or different RNTIs.
在具体应用中,网络侧可以预先配置或协议规定调度组播PDSCH的DCI所使用的CORESET或搜索空间,以及调度单播PDSCH的DCI所使用的CORESET或搜索空间,UE根据检测到的所述DCI所在的CORESET或搜索空间,可以确定当前DCI调度的PDSCH的类型,并确定加扰调度的PDSCH的RNTI。In specific applications, the network side can pre-configure or protocol the CORESET or search space used for scheduling the DCI of the multicast PDSCH, and the CORESET or search space used for the DCI of the unicast PDSCH, and the UE can be based on the detected DCI The CORESET or search space in which it is located can determine the type of PDSCH scheduled by the current DCI, and determine the RNTI of the PDSCH scheduled by scrambling.
(3)根据所述DCI所使用的格式,获取所述PDSCH的类型或所述RNTI,其中,不同格式的DCI指示不同的PDSCH的类型或不同的RNTI。(3) Obtain the type of the PDSCH or the RNTI according to the format used by the DCI, where the DCI of different formats indicates different PDSCH types or different RNTIs.
例如,DCI使用DCI 1_1格式调度的为单播PDSCH,DCI使用DCI 1_2 格式调度的为组播PDSCH。For example, DCI uses DCI 1_1 format to schedule unicast PDSCH, and DCI uses DCI 1_2 format to schedule multicast PDSCH.
或者,也可以是根据DCI使用的格式以及DCI中的第一指示域相结合的方式确定所述PDSCH的类型或所述RNTI。例如,DCI 1_0用于调度的单播PDSCH,即使用DCI 1_0格式的DCI调度的PDSCH均为单播PDSCH,使用DCI 1_1调度组播PDSCH或单播PDSCH,并通过DCI 1_1中的特定域指示调度的PDSCH的类型。Alternatively, the type of the PDSCH or the RNTI may also be determined according to a combination of the format used by the DCI and the first indicator field in the DCI. For example, DCI 1_0 is used for unicast PDSCH scheduling, that is, the PDSCHs scheduled by DCI 1_0 format are all unicast PDSCHs, and DCI 1_1 is used to schedule multicast PDSCH or unicast PDSCH, and the scheduling is indicated by a specific field in DCI 1_1 The type of PDSCH.
(4)通过加扰所述DCI的循环冗余校验CRC使用的RNTI,指示所述PDSCH的类型或所述RNTI,其中,加扰所述DCI的CRC使用的不同RNTI对应不同的PDSCH的类型或不同的RNTI。(4) By scrambling the RNTI used by the cyclic redundancy check CRC of the DCI to indicate the type of the PDSCH or the RNTI, where different RNTIs used for the CRC scrambling the DCI correspond to different PDSCH types Or a different RNTI.
例如,某个DCI使用C-RNTI加扰CRC时指示单播PDSCH,使用X-RNTI加扰CRC时指示组播PDSCH。For example, when a certain DCI uses C-RNTI to scramble the CRC, it indicates a unicast PDSCH, and when an X-RNTI is used to scramble the CRC, it indicates a multicast PDSCH.
上述DCI格式或加扰CRC的RNTI与PDSCH的类型之间的关系可以是高层信令配置,或者预定义的方式确定。The relationship between the above-mentioned DCI format or RNTI for CRC scrambled and PDSCH type may be configured by high-level signaling or determined in a predefined manner.
在一个可能的实现方式中,在步骤S320之后,该方法还可以包括:使用与所述DCI所指示的所述PDSCH的类型对应的RNTI,解扰所述目标PDSCH;或者,使用所述DCI所指示的RNTI,解扰所述目标PDSCH。通过该可能的实现方式,UE可以解扰目标PDSCH,从而获取网络侧传输的PDSCH信息。In a possible implementation manner, after step S320, the method may further include: descrambling the target PDSCH using the RNTI corresponding to the type of the PDSCH indicated by the DCI; or using the DCI The indicated RNTI descrambles the target PDSCH. Through this possible implementation, the UE can descramble the target PDSCH, thereby obtaining PDSCH information transmitted by the network side.
在一个可能的实现方式中,所述DCI中还可以包括:PDSCH到HARQ反馈定时指示信息。在接收所述PDCCH上传输的DCI之后,所述方法还包括:根据所述PDSCH到HARQ反馈定时指示信息确定反馈所述目标PDSCH的时隙或子时隙。In a possible implementation manner, the DCI may also include: PDSCH to HARQ feedback timing indication information. After receiving the DCI transmitted on the PDCCH, the method further includes: determining a time slot or sub-slot for feeding back the target PDSCH according to the PDSCH to HARQ feedback timing indication information.
例如,对于DCI格式1_1或DCI格式1_2,基站可以通过RRC参数配置PDSCH到HARQ反馈定时指示信息对应的预定参数集合(k1集合),在DCI中,通过PDSCH到HARQ反馈定时指示信息可以确定反馈所述目标PDSCH的时隙或子时隙。For example, for DCI format 1_1 or DCI format 1_2, the base station can configure the predetermined parameter set (k1 set) corresponding to the PDSCH to HARQ feedback timing indication information through RRC parameters. In DCI, the feedback location can be determined through the PDSCH to HARQ feedback timing indication information. The time slot or sub-slot of the target PDSCH.
可选地,对于某个DCI在调度单播PDSCH或组播PDSCH或指示不同 RNTI加扰的PDSCH时,基站可以配置不同的预定参数集合(k1集合),或者,也可以配置相同的预定参数集合(k1集合),具体可以根据实际应用确定。Optionally, for a certain DCI when scheduling unicast PDSCH or multicast PDSCH or indicating PDSCH scrambled by different RNTIs, the base station may configure different predetermined parameter sets (k1 sets), or may also configure the same predetermined parameter set (k1 set), which can be specifically determined according to actual applications.
在一个可能的实现方式中,所述DCI还可以包括:PUCCH的资源指示信息。在接收所述PDCCH上传输的DCI之后,所述方法还可以包括:根据所述DCI中的PUCCH的资源指示信息(PRI),确定所述目标PDSCH对应的HARQ反馈时的PUCCH资源。In a possible implementation manner, the DCI may further include: PUCCH resource indication information. After receiving the DCI transmitted on the PDCCH, the method may further include: determining the PUCCH resource during HARQ feedback corresponding to the target PDSCH according to the resource indication information (PRI) of the PUCCH in the DCI.
例如,基站可以通过RRC指令配置预定PUCCH资源集合,或者,通过协议规定配置该预定PUCCH资源集合。每个预定资源集合中包含一个或多个资源,UE根据HARQ-ACK反馈的比特数确定对应的PUCCH资源集合,并根据PRI(以及DCI所在CORESET的第一个CCE索引)在集合内确定一个PUCCH资源。可选的,基站可以为组播PDSCH和单播PDSCH反馈配置不同的预定PUCCH资源集合,当UE反馈组播PDSCH的HARQ-ACK时,在组播PDSCH对应的资源集合中确定PUCCH资源,在反馈单播PDSCH的HARQ-ACK时,在单播PDSCH对应的资源集合中确定PUCCH资源。当然,并不限于此,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PUCCH资源指示信息所对应的PUCCH资源集合也可以相同。即网络侧为单播PDSCH和组播PDSCH对应的HARQ-ACK反馈PUCCH资源统一配置预定PUCCH资源集合。For example, the base station may configure a predetermined PUCCH resource set through RRC instructions, or configure the predetermined PUCCH resource set through protocol provisions. Each predetermined resource set contains one or more resources. The UE determines the corresponding PUCCH resource set according to the number of HARQ-ACK feedback bits, and determines a PUCCH in the set according to the PRI (and the first CCE index of the CORESET where DCI is located) resource. Optionally, the base station can configure different predetermined PUCCH resource sets for multicast PDSCH and unicast PDSCH feedback. When the UE feeds back the HARQ-ACK of the multicast PDSCH, the PUCCH resource is determined in the resource set corresponding to the multicast PDSCH, and the feedback is When the HARQ-ACK of the unicast PDSCH is unicast, the PUCCH resource is determined in the resource set corresponding to the unicast PDSCH. Of course, it is not limited to this. In DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the PUCCH resource sets corresponding to the PUCCH resource indication information may also be the same. That is, the network side uniformly configures a predetermined PUCCH resource set for the HARQ-ACK feedback PUCCH resources corresponding to the unicast PDSCH and the multicast PDSCH.
在一个可能的实现方式中,所述DCI还包括:PUCCH的传输功率控制信令。在接收所述PDCCH上传输的DCI之后,所述方法还包括:根据所述DCI中的PUCCH的传输功率控制信令,确定所述目标PDSCH对应的HARQ反馈时的PUCCH的传输功率。In a possible implementation manner, the DCI further includes: PUCCH transmission power control signaling. After receiving the DCI transmitted on the PDCCH, the method further includes: determining the transmission power of the PUCCH during HARQ feedback corresponding to the target PDSCH according to the transmission power control signaling of the PUCCH in the DCI.
在具体应用中,基站可以通过高层参数配置PUCCH的功率控制调整状态。可选地,基站可以为组播PDSCH和单播PDSCH调度的PUCCH配置不同的PUCCH的功率控制调整状态。也就是说,指示不同类型的PDSCH或不 同RNTI加扰的PDSCH的DCI中,所述PUCCH传输功率控制命令所对应的PUCCH的功率控制调整状态不同。或者,基站也可以为组播PDSCH和单播PDSCH调度的PUCCH配置相同的PUCCH的功率控制调整状态。也就是说,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PUCCH传输功率控制命令所对应的PUCCH的功率控制调整状态相同。In specific applications, the base station can configure the power control adjustment state of the PUCCH through high-level parameters. Optionally, the base station may configure different PUCCH power control adjustment states for the PUCCH scheduled by the multicast PDSCH and the unicast PDSCH. That is to say, in the DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the PUCCH power control adjustment states corresponding to the PUCCH transmission power control commands are different. Alternatively, the base station may also configure the same PUCCH power control adjustment state for the PUCCH scheduled by the multicast PDSCH and the unicast PDSCH. That is, in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the PUCCH power control adjustment states corresponding to the PUCCH transmission power control commands are the same.
在一个可能的实现方式,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PUCCH传输功率控制命令所指示的传输功率分别累计。或者,针对所有的所述PDSCH的类型或所有RNTI加扰的PDSCH,所述PUCCH传输功率控制命令所指示的传输功率,共同累计。具体可以参见方法100中的相关描述,在此不再赘述。In a possible implementation manner, in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the transmission power indicated by the PUCCH transmission power control command is accumulated respectively. Or, for all PDSCH types or all RNTI scrambled PDSCHs, the transmission power indicated by the PUCCH transmission power control command is collectively accumulated. For details, please refer to the related description in the method 100, which will not be repeated here.
在一个可能的实现方式中,所述DCI中还可以包括:DAI。在接收与所述PDSCH的类型相应的目标PDSCH之后,所述方法还包括:根据所述DCI中的DAI,构建所述目标PDSCH的HARQ反馈码本。In a possible implementation manner, the DCI may further include: DAI. After receiving the target PDSCH corresponding to the type of the PDSCH, the method further includes: constructing a HARQ feedback codebook of the target PDSCH according to the DAI in the DCI.
可选地,针对不同的所述PDSCH的类型或不同RNTI加扰的PDSCH,所述DCI中的DAI分别进行计算(counting)。即DAI分别在单播PDSCH和组播PDSCH中计算。或者,针对所有的所述PDSCH的类型或者所有RNTI加扰的PDSCH,所述DCI中的DAI进行累计计算。Optionally, for different PDSCH types or different RNTI scrambled PDSCHs, the DAI in the DCI is separately counted. That is, DAI is calculated in unicast PDSCH and multicast PDSCH respectively. Or, for all PDSCH types or all RNTI scrambled PDSCHs, the DAI in the DCI is cumulatively calculated.
例如,假设DCI 1~5均为C-RNTI加扰的DCI格式分别调度PDSCH1~5,其中,根据DCI 1~5的指示,PDSCH 1、3和4为组播PDSCH,PDSCH 2和5为单播PDSCH。For example, suppose that DCI 1 to 5 are all C-RNTI scrambled DCI formats to schedule PDSCH 1 to 5 respectively. According to the instructions of DCI 1 to 5, PDSCH 1, 3, and 4 are multicast PDSCHs, and PDSCH 2 and 5 are single Broadcast PDSCH.
在一种实现方式中DAI指示分别在单播PDSCH和组播PDSCH中计算,则各个DCI中的DAI如图4所示。在HARQ-ACK反馈时,单播PDSCH和组播PDSCH的HARQ-ACK码本分别构建不同的码本(例如在不同的时隙或子时隙反馈或不同的PUCCH资源反馈)或者是在一个码本的不同子码本中(例如在相同时隙或子时隙反馈或相同PUCCH资源反馈)。In an implementation manner, the DAI indication is calculated in the unicast PDSCH and the multicast PDSCH respectively, and the DAI in each DCI is shown in FIG. 4. During HARQ-ACK feedback, the HARQ-ACK codebooks of unicast PDSCH and multicast PDSCH are constructed respectively in different codebooks (for example, feedback in different time slots or sub-slots or different PUCCH resource feedback) or in one code Different sub-codebooks of this locale (for example, feedback in the same time slot or sub-slot or the same PUCCH resource feedback).
在另一种实现方式中DAI在单播PDSCH和组播PDSCH中累计计算, 即DAI计算时不区分单播PDSCH或组播PDSCH,则各个DCI中的DAI如图5所示。由于DAI计算时不区分单播PDSCH或组播PDSCH,因此在HARQ-ACK反馈时,一个码本中可以包含单播PDSCH或组播PDSCH对应的HARQ-ACK。In another implementation manner, DAI is cumulatively calculated in unicast PDSCH and multicast PDSCH, that is, the DAI calculation does not distinguish between unicast PDSCH and multicast PDSCH, and the DAI in each DCI is shown in FIG. 5. Since the DAI calculation does not distinguish between unicast PDSCH and multicast PDSCH, during HARQ-ACK feedback, a codebook may contain the HARQ-ACK corresponding to the unicast PDSCH or the multicast PDSCH.
上述图4和图5中以DCI指示的为调度的PDSCH的类型为例进行说明,对于DCI指示的为不同RNTI加扰的PDSCH的情况,DCI中的DAI也可以采用与相应的方式进行处理,具体不再赘述。4 and 5 above, take the type of scheduled PDSCH indicated by DCI as an example for description. For the case where the PDSCH indicated by DCI is a PDSCH scrambled by different RNTIs, the DAI in DCI can also be processed in a corresponding manner. The details are not repeated here.
通过本发明实施例提供的技术方案,UE可以通过其特定DCI调度组播PDSCH,实现了数据信息的组播传输,节省了系统资源,在提高系统效率的同时实现了控制信息的灵活指示,使得不同UE可以使用UE特定资源和功率等反馈传输组播PDSCH对应的HARQ-ACK信息。Through the technical solution provided by the embodiment of the present invention, the UE can schedule a multicast PDSCH through its specific DCI, realize the multicast transmission of data information, save system resources, and realize flexible indication of control information while improving system efficiency, so that Different UEs can use UE-specific resources and power to feed back and transmit HARQ-ACK information corresponding to the multicast PDSCH.
图6是本发明实施例提供的一种网络设备的结构示意图,如图6所示,该网络设备600包括:发送模块610,用于向终端设备发送所述终端设备特定的DCI,所述DCI用于调度PDSCH传输,通过所述DCI指示调度的所述PDSCH的类型或加扰调度的所述PDSCH所使用的无线网络临时标识(RNTI),其中,加扰不同类型的所述PDSCH使用的RNTI不同,所述PDSCH的类型包括:单播PDSCH或组播PDSCH。FIG. 6 is a schematic structural diagram of a network device provided by an embodiment of the present invention. As shown in FIG. 6, the network device 600 includes: a sending module 610, configured to send the terminal device specific DCI to the terminal device, the DCI Used for scheduling PDSCH transmission, indicating the type of the scheduled PDSCH through the DCI or scrambling the radio network temporary identifier (RNTI) used by the scheduled PDSCH, wherein the RNTI used by different types of the PDSCH is scrambled Different, the types of the PDSCH include: unicast PDSCH or multicast PDSCH.
在一个可能的实现方式中,对于组播PDSCH,向不同终端设备发送的DCI调度的PDSCH相同。In a possible implementation manner, for the multicast PDSCH, the DCI scheduled PDSCHs sent to different terminal devices are the same.
在一个可能的实现方式中,通过所述DCI指示调度的所述PDSCH的类型或加扰调度的所述PDSCH所使用的RNTI,包括以下任意一项:In a possible implementation manner, the type of the scheduled PDSCH or the RNTI used by the scrambled scheduled PDSCH indicated by the DCI includes any one of the following:
通过所述DCI中包含的第一指示域的取值,指示所述PDSCH的类型或所述RNTI,其中,所述第一指示域的不同取值指示不同的PDSCH的类型或不同的RNTI;Indicating the type of the PDSCH or the RNTI through the value of the first indicator field included in the DCI, where different values of the first indicator field indicate different PDSCH types or different RNTIs;
通过所述DCI所在的控制资源集合(CORESET)或搜索空间,指示所述PDSCH的类型或所述RNTI,其中,所述DCI位于不同的CORESET或搜 索空间对应不同的PDSCH的类型或不同的RNTI;Indicate the type of PDSCH or the RNTI through the control resource set (CORESET) or search space in which the DCI is located, where the DCI is located in different CORESET or search spaces corresponding to different PDSCH types or different RNTIs;
通过所述DCI使用的格式,指示所述PDSCH的类型或所述RNTI,其中,不同格式的DCI对应不同的PDSCH的类型或不同的RNTI;Indicate the type of the PDSCH or the RNTI through the format used by the DCI, where the DCI of different formats corresponds to different PDSCH types or different RNTIs;
通过加扰所述DCI的循环冗余校验(CRC)使用的RNTI,指示所述PDSCH的类型或所述RNTI,其中,加扰所述DCI的CRC使用的不同RNTI对应不同的PDSCH的类型或不同的RNTI。The RNTI used by the cyclic redundancy check (CRC) of the DCI is scrambled to indicate the type of the PDSCH or the RNTI, where different RNTIs used by the CRC to scramble the DCI correspond to different PDSCH types or Different RNTI.
在一个可能的实现方式中,所述DCI中还包括以下至少一项:In a possible implementation manner, the DCI further includes at least one of the following:
下行链路分配索引(DAI);Downlink Allocation Index (DAI);
PDSCH到HARQ反馈定时指示信息;PDSCH to HARQ feedback timing indication information;
物理上行控制信道(PUCCH)的资源指示信息;Physical uplink control channel (PUCCH) resource indication information;
PUCCH的传输功率控制命令。PUCCH transmission power control command.
在一个可能的实现方式中,针对不同的所述PDSCH的类型或者不同RNTI加扰的PDSCH,所述DCI中的DAI分别进行计算;或者,针对所有的所述PDSCH的类型或者所有RNTI加扰的PDSCH,所述DCI中的DAI进行累计计算。In a possible implementation manner, for different PDSCH types or different RNTI scrambled PDSCHs, the DAI in the DCI is calculated separately; or, for all the PDSCH types or all RNTI scrambled PDSCH, the DAI in the DCI is cumulatively calculated.
在一个可能的实现方式中,所述DCI中的所述PDSCH到HARQ反馈定时指示信息用于指示预定参数集合中的参数,其中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH,所述预定参数集合不同。In a possible implementation manner, the PDSCH to HARQ feedback timing indication information in the DCI is used to indicate parameters in a predetermined parameter set. For different types of PDSCHs or PDSCHs scrambled by different RNTIs, the predetermined The parameter set is different.
在一个可能的实现方式中,所述DCI中的所述PDSCH到HARQ反馈定时指示信息用于指示预定参数集合中的参数,其中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH,所述预定参数集合相同。In a possible implementation manner, the PDSCH to HARQ feedback timing indication information in the DCI is used to indicate parameters in a predetermined parameter set. For different types of PDSCHs or PDSCHs scrambled by different RNTIs, the predetermined The parameter set is the same.
在一个可能的实现方式中,所述DCI中的所述PUCCH资源指示信息用于指示预定PUCCH资源集合中的资源,其中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH,所述预定PUCCH资源集合不同。In a possible implementation manner, the PUCCH resource indication information in the DCI is used to indicate resources in a predetermined PUCCH resource set, where, for different types of PDSCHs or PDSCHs scrambled by different RNTIs, the predetermined PUCCH resources The collection is different.
在一个可能的实现方式中,所述DCI中的所述PUCCH资源指示信息用于指示预定PUCCH资源集合中的资源,其中,针对不同类型的PDSCH或不 同RNTI加扰的PDSCH,所述预定PUCCH资源信息相同。In a possible implementation manner, the PUCCH resource indication information in the DCI is used to indicate resources in a predetermined PUCCH resource set, where, for different types of PDSCHs or PDSCHs scrambled by different RNTIs, the predetermined PUCCH resources The information is the same.
在一个可能的实现方式中,所述发送模块610还用于在向终端设备发送终端设备特定的DCI之前,向所述终端设备发送配置信令,其中,所述配置信令中包括PUCCH的功率控制调整状态配置信息,其中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH对应DCI调度的PUCCH,分别配置所述功率控制调整状态配置信息。In a possible implementation, the sending module 610 is further configured to send configuration signaling to the terminal device before sending the terminal device-specific DCI to the terminal device, where the configuration signaling includes the power of the PUCCH Control adjustment state configuration information, wherein, for different types of PDSCHs or PDSCHs scrambled by different RNTIs corresponding to the PUCCH scheduled by DCI, the power control adjustment state configuration information is configured respectively.
在一个可能的实现方式中,所述发送模块610还用于在向终端设备发送终端设备特定的DCI之前,向所述终端设备发送配置信令,其中,所述配置信令中包括PUCCH的功率控制调整状态配置信息,其中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH对应DCI调度的PUCCH,配置统一的所述功率控制调整状态配置信息。In a possible implementation, the sending module 610 is further configured to send configuration signaling to the terminal device before sending the terminal device-specific DCI to the terminal device, where the configuration signaling includes the power of the PUCCH Control adjustment state configuration information, where, for different types of PDSCHs or PDSCHs scrambled by different RNTIs corresponding to the PUCCH scheduled by DCI, the unified power control adjustment state configuration information is configured.
在一个可能的实现方式中,针对不同的所述PDSCH的类型或不同RNTI加扰的PDSCH对应的DCI,所述PUCCH传输功率控制命令所指示的传输功率,分别累计;或者,针对所有的所述PDSCH的类型或所有RNTI加扰的PDSCH对应的DCI,所述PUCCH传输功率控制命令所指示的传输功率,共同累计。In a possible implementation manner, for different PDSCH types or DCI corresponding to PDSCH scrambled by different RNTIs, the transmission power indicated by the PUCCH transmission power control command is accumulated separately; or, for all the The type of PDSCH or the DCI corresponding to all RNTI scrambled PDSCHs, and the transmission power indicated by the PUCCH transmission power control command are collectively accumulated.
本发明实施例提供的网络设备够实现图1至图5的各个方法实施例中基站实现的各个过程,并达到相同的效果为避免重复,这里不再赘述。The network device provided by the embodiment of the present invention can implement each process implemented by the base station in the method embodiments of FIG. 1 to FIG. 5 and achieve the same effect. To avoid repetition, details are not described herein again.
图7是本发明实施例提供的一种终端设备的结构示意图,如图7所示,该核心网设备700包括:第一接收模块710,接收所述终端设备特定的下行控制信息(DCI),所述DCI用于调度物理下行共享信道(PDSCH)传输;第二接收模块720,用于根据所述DCI所指示的所述PDSCH的类型或所述DCI所指示的加扰的所述PDSCH所使用的RNTI,接收目标PDSCH,其中,所述PDSCH的类型包括:单播PDSCH或组播PDSCH。FIG. 7 is a schematic structural diagram of a terminal device provided by an embodiment of the present invention. As shown in FIG. 7, the core network device 700 includes: a first receiving module 710, which receives downlink control information (DCI) specific to the terminal device, The DCI is used for scheduling physical downlink shared channel (PDSCH) transmission; the second receiving module 720 is used for scheduling according to the type of the PDSCH indicated by the DCI or the scrambled PDSCH indicated by the DCI The RNTI receives the target PDSCH, where the type of the PDSCH includes: unicast PDSCH or multicast PDSCH.
在一个可能的实现方式中,所述DCI所指示的所述PDSCH的类型或加扰所述PDSCH所使用的RNTI通过以下之一获取:In a possible implementation, the type of the PDSCH indicated by the DCI or the RNTI used to scramble the PDSCH is obtained through one of the following:
根据所述DCI中的第一指示域的取值,获取所述PDSCH的类型或所述RNTI,其中,所述第一指示域的不同取值指示不同的PDSCH的类型或不同的RNTI;Acquiring the PDSCH type or the RNTI according to the value of the first indicator field in the DCI, where different values of the first indicator field indicate different PDSCH types or different RNTIs;
根据所述DCI所在的CORESET或搜索空间,获取所述PDSCH的类型或所述RNTI,其中,所述DCI位于不同的CORESET或搜索空间指示不同的PDSCH的类型或不同的RNTI;Acquiring the type of the PDSCH or the RNTI according to the CORESET or search space where the DCI is located, where the location of the DCI in a different CORESET or search space indicates different PDSCH types or different RNTIs;
根据所述DCI所使用的格式,获取所述PDSCH的类型或所述RNTI,其中,不同格式的DCI指示不同的PDSCH的类型或不同的RNTI;Acquiring the type of the PDSCH or the RNTI according to the format used by the DCI, where the DCI of different formats indicates different PDSCH types or different RNTIs;
通过加扰所述DCI的循环冗余校验(CRC)使用的RNTI,指示所述PDSCH的类型或所述RNTI,其中,加扰所述DCI的CRC使用的不同RNTI对应不同的PDSCH的类型或不同的RNTI。The RNTI used by the cyclic redundancy check (CRC) of the DCI is scrambled to indicate the type of the PDSCH or the RNTI, where different RNTIs used by the CRC to scramble the DCI correspond to different PDSCH types or Different RNTI.
在一个可能的实现方式中,第二接收模块720还用于在接收所述目标PDSCH之后,使用与所述DCI所指示的所述PDSCH的类型对应的RNTI,解扰所述目标PDSCH;或者,使用所述DCI所指示的RNTI,解扰所述目标PDSCH。In a possible implementation, the second receiving module 720 is further configured to, after receiving the target PDSCH, use the RNTI corresponding to the type of the PDSCH indicated by the DCI to descramble the target PDSCH; or, Use the RNTI indicated by the DCI to descramble the target PDSCH.
在一个可能的实现方式中所述DCI中还包括:PDSCH到HARQ反馈定时指示信息;所述第一接收模块710还用于在接收所述PDCCH上传输的DCI之后,根据所述PDSCH到HARQ反馈定时指示信息确定反馈所述目标PDSCH的时隙或子时隙。In a possible implementation manner, the DCI further includes: PDSCH to HARQ feedback timing indication information; the first receiving module 710 is further configured to, after receiving the DCI transmitted on the PDCCH, according to the PDSCH to HARQ feedback The timing indication information determines the time slot or sub-slot for feeding back the target PDSCH.
在一个可能的实现方式中,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PDSCH到HARQ反馈定时指示信息所对应的参数集合不同。In a possible implementation manner, in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the parameter sets corresponding to the PDSCH to HARQ feedback timing indication information are different.
在一个可能的实现方式中,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PDSCH到HARQ反馈定时指示信息所对应的参数集合相同。In a possible implementation manner, in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the parameter sets corresponding to the PDSCH to HARQ feedback timing indication information are the same.
在一个可能的实现方式中,所述DCI还包括:PUCCH的资源指示信息; 所述第一接收模块710还用于在接收所述PDCCH上传输的DCI之后,根据所述DCI中的PUCCH的资源指示信息,确定所述目标PDSCH对应的HARQ反馈时的PUCCH资源。In a possible implementation manner, the DCI further includes: PUCCH resource indication information; the first receiving module 710 is further configured to, after receiving the DCI transmitted on the PDCCH, perform according to the PUCCH resource in the DCI The indication information determines the PUCCH resource during HARQ feedback corresponding to the target PDSCH.
在一个可能的实现方式中,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PUCCH资源指示信息所对应的PUCCH资源集合不同。In a possible implementation manner, in DCIs indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the PUCCH resource sets corresponding to the PUCCH resource indication information are different.
在一个可能的实现方式中,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PUCCH资源指示信息所对应的PUCCH资源集合相同。In a possible implementation manner, in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the PUCCH resource sets corresponding to the PUCCH resource indication information are the same.
在一个可能的实现方式中,所述DCI还包括:PUCCH的传输功率控制信令;所述第一接收模块710还用于在接收所述PDCCH上传输的DCI之后,根据所述DCI中的PUCCH的传输功率控制信令,确定所述目标PDSCH对应的HARQ反馈时的PUCCH的传输功率。In a possible implementation, the DCI further includes: PUCCH transmission power control signaling; the first receiving module 710 is further configured to, after receiving the DCI transmitted on the PDCCH, perform according to the PUCCH in the DCI The transmission power control signaling of the target PDSCH determines the transmission power of the PUCCH during HARQ feedback corresponding to the target PDSCH.
在一个可能的实现方式中,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PUCCH传输功率控制命令所对应的PUCCH的功率控制调整状态不同。In a possible implementation manner, in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the PUCCH power control adjustment states corresponding to the PUCCH transmission power control commands are different.
在一个可能的实现方式中,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PUCCH传输功率控制命令所对应的PUCCH的功率控制调整状态相同。In a possible implementation manner, in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the power control adjustment states of the PUCCH corresponding to the PUCCH transmission power control command are the same.
在一个可能的实现方式中,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PUCCH传输功率控制命令所指示的传输功率分别累计;或者,针对所有的所述PDSCH的类型或所有RNTI加扰的PDSCH,所述PUCCH传输功率控制命令所指示的传输功率,共同累计。In a possible implementation manner, in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the transmission power indicated by the PUCCH transmission power control command is accumulated separately; or, for all the PDSCH types or For all PDSCH scrambled by RNTI, the transmission power indicated by the PUCCH transmission power control command is accumulated together.
在一个可能的实现方式中,所述DCI中还包括:DAI;所述终端设备还包括:构建模块,用于在接收与所述PDSCH的类型相应的目标PDSCH之后,根据所述DCI中的DAI,构建所述目标PDSCH的HARQ反馈码本。In a possible implementation manner, the DCI further includes: DAI; the terminal device further includes: a construction module for receiving a target PDSCH corresponding to the type of the PDSCH, according to the DAI in the DCI , Constructing the HARQ feedback codebook of the target PDSCH.
在一个可能的实现方式中,针对不同的所述PDSCH的类型或不同RNTI加扰的PDSCH,所述DCI中的DAI分别进行计算;或者,针对所有的所述PDSCH的类型或者所有RNTI加扰的PDSCH,所述DCI中的DAI进行累计计算。In a possible implementation manner, for different PDSCH types or different RNTI scrambled PDSCHs, the DAI in the DCI is calculated separately; or, for all the PDSCH types or all RNTI scrambled PDSCH, the DAI in the DCI is cumulatively calculated.
本发明实施例提供的终端设备能够实现上述图1至图5中各个方法实施例中终端设备实现的各个过程,并达到相同的效果为避免重复,这里不再赘述。The terminal device provided in the embodiment of the present invention can implement the various processes implemented by the terminal device in the above-mentioned method embodiments in FIG. 1 to FIG. 5, and achieve the same effect. To avoid repetition, details are not described herein again.
图8是本发明另一个实施例的终端设备的框图。图8所示的终端设备800包括:至少一个处理器801、存储器802、至少一个网络接口804和用户接口803。终端设备800中的各个组件通过总线系统805耦合在一起。可理解,总线系统805用于实现这些组件之间的连接通信。总线系统805除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见,在图8中将各种总线都标为总线系统805。Fig. 8 is a block diagram of a terminal device according to another embodiment of the present invention. The terminal device 800 shown in FIG. 8 includes: at least one processor 801, a memory 802, at least one network interface 804, and a user interface 803. The various components in the terminal device 800 are coupled together through the bus system 805. It can be understood that the bus system 805 is used to implement connection and communication between these components. In addition to the data bus, the bus system 805 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear description, various buses are marked as the bus system 805 in FIG. 8.
其中,用户接口803可以包括显示器、键盘或者点击设备(例如,鼠标,轨迹球(trackball)、触感板或者触摸屏等。Wherein, the user interface 803 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball (trackball), a touch panel, or a touch screen, etc.).
可以理解,本发明实施例中的存储器802可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM, DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synch Link DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本发明实施例描述的系统和方法的存储器802旨在包括但不限于这些和任意其它适合类型的存储器。It can be understood that the memory 802 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (Synch Link DRAM, SLDRAM) ) And Direct Rambus RAM (DRRAM). The memory 802 of the system and method described in the embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.
在一些实施方式中,存储器802存储了如下的元素,可执行模块或者数据结构,或者他们的子集,或者他们的扩展集:操作系统8021和应用程序8022。In some embodiments, the memory 802 stores the following elements, executable modules or data structures, or a subset of them, or an extended set of them: operating system 8021 and application programs 8022.
其中,操作系统8021,包含各种系统程序,例如框架层、核心库层、驱动层等,用于实现各种基础业务以及处理基于硬件的任务。应用程序8022,包含各种应用程序,例如媒体播放器(Media Player)、浏览器(Browser)等,用于实现各种应用业务。实现本发明实施例方法的程序可以包含在应用程序8022中。Among them, the operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application program 8022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services. The program for implementing the method of the embodiment of the present invention may be included in the application 8022.
在本发明实施例中,终端设备800还包括:存储在存储器上802并可在处理器801上运行的计算机程序,计算机程序被处理器801执行时实现如下步骤:In the embodiment of the present invention, the terminal device 800 further includes: a computer program that is stored in the memory 802 and can run on the processor 801. When the computer program is executed by the processor 801, the following steps are implemented:
接收所述终端设备特定的下行控制信息(DCI),所述DCI用于调度物理下行共享信道(PDSCH)传输;Receiving downlink control information (DCI) specific to the terminal device, where the DCI is used to schedule physical downlink shared channel (PDSCH) transmission;
根据所述DCI所指示的所述PDSCH的类型或所述DCI所指示的加扰所述PDSCH所使用的RNTI,接收目标PDSCH,其中,所述PDSCH的类型包括:单播PDSCH或组播PDSCH。Receive the target PDSCH according to the type of the PDSCH indicated by the DCI or the RNTI used for scrambling the PDSCH indicated by the DCI, where the type of the PDSCH includes: unicast PDSCH or multicast PDSCH.
上述本发明实施例揭示的方法可以应用于处理器801中,或者由处理器801实现。处理器801可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器801中的硬件的集成逻辑电 路或者软件形式的指令完成。上述的处理器801可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的计算机可读存储介质中。该计算机可读存储介质位于存储器802,处理器801读取存储器802中的信息,结合其硬件完成上述方法的步骤。具体地,该计算机可读存储介质上存储有计算机程序,计算机程序被处理器801执行时实现如上述方法300中的各步骤。The method disclosed in the foregoing embodiment of the present invention may be applied to the processor 801 or implemented by the processor 801. The processor 801 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method can be completed by hardware integrated logic circuits in the processor 801 or instructions in the form of software. The aforementioned processor 801 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present invention may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a computer-readable storage medium that is mature in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The computer-readable storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and completes the steps of the foregoing method in combination with its hardware. Specifically, a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 801, each step in the above method 300 is implemented.
可以理解的是,本发明实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现,处理单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits,ASIC)、数字信号处理器(Digital Signal Processing,DSP)、数字信号处理设备(DSP Device,DSPD)、可编程逻辑设备(Programmable Logic Device,PLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本发明所述功能的其它电子单元或其组合中。It can be understood that the embodiments described in the embodiments of the present invention may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing equipment (DSP Device, DSPD), programmable Logic device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in the present invention Electronic unit or its combination.
对于软件实现,可通过执行本发明实施例所述功能的模块(例如过程、函数等)来实现本发明实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。For software implementation, the technology described in the embodiments of the present invention can be implemented by modules (for example, procedures, functions, etc.) that execute the functions described in the embodiments of the present invention. The software codes can be stored in the memory and executed by the processor. The memory can be implemented in the processor or external to the processor.
终端设备800能够实现前述图1至图5中终端设备实现的各个过程,为避免重复,这里不再赘述。The terminal device 800 can implement the various processes implemented by the terminal device in FIG. 1 to FIG.
请参阅图9,图9是本发明实施例应用的网络设备的结构图,能够作为基站实现方法100和300中的各细节,并达到相同的效果。如图9所示,网络设备900包括:处理器901、收发机902、存储器903、用户接口904和总线接口,其中:Please refer to FIG. 9. FIG. 9 is a structural diagram of a network device applied in an embodiment of the present invention, which can be used as a base station to implement various details in the methods 100 and 300 and achieve the same effect. As shown in FIG. 9, the network device 900 includes: a processor 901, a transceiver 902, a memory 903, a user interface 904, and a bus interface, where:
在本发明实施例中,网络设备900还包括:存储在存储器上903并可在处理器901上运行的计算机程序,计算机程序被处理器901、执行时实现如下步骤:向终端设备发送所述终端设备特定的DCI,所述DCI用于调度PDSCH传输,通过所述DCI指示调度的所述PDSCH的类型或加扰调度的所述PDSCH所使用的无线网络临时标识(RNTI),其中,加扰不同类型的所述PDSCH使用的RNTI不同,所述PDSCH的类型包括:单播PDSCH或组播PDSCH。In the embodiment of the present invention, the network device 900 further includes: a computer program stored in the memory 903 and capable of running on the processor 901. When the computer program is executed by the processor 901, the following steps are implemented: sending the terminal to the terminal device. Device-specific DCI, the DCI is used to schedule PDSCH transmission, and the type of the scheduled PDSCH or the radio network temporary identifier (RNTI) used by the scheduled PDSCH is indicated by the DCI, wherein the scrambling is different The types of PDSCHs use different RNTIs, and the types of PDSCHs include: unicast PDSCH or multicast PDSCH.
在图9中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器901代表的一个或多个处理器和存储器903代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机902可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口904还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。In FIG. 9, the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 901 and various circuits of the memory represented by the memory 903 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein. The bus interface provides the interface. The transceiver 902 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium. For different user equipment, the user interface 904 may also be an interface capable of connecting externally and internally with the required equipment. The connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
处理器901负责管理总线架构和通常的处理,存储器903可以存储处理器901在执行操作时所使用的数据。The processor 901 is responsible for managing the bus architecture and general processing, and the memory 903 can store data used by the processor 901 when performing operations.
网络设备900能够实现前述图1至图5中基站实现的各个过程,并达到相同的效果为避免重复,这里不再赘述。The network device 900 can implement each process implemented by the base station in FIG. 1 to FIG. 5 and achieve the same effect. To avoid repetition, details are not described herein again.
本发明实施例还提供一种计算机可读存储介质,计算机可读存储介质上存储有计算机程序,该计算机程序被处理器执行时实现上述图1至图5中所示的各个实施例的基站或终端设备执行各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等。The embodiment of the present invention also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, the base station or The terminal device executes each process and can achieve the same technical effect. In order to avoid repetition, the details are not repeated here. Wherein, the computer-readable storage medium, such as read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk, or optical disk, etc.
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements that are not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or device that includes the element.
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本发明各个实施例所述的方法。Through the description of the above implementation manners, those skilled in the art can clearly understand that the above-mentioned embodiment method can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes a number of instructions to enable a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the method described in each embodiment of the present invention.
上面结合附图对本发明的实施例进行了描述,但是本发明并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的, 本领域的普通技术人员在本发明的启示下,在不脱离本发明宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本发明的保护之内。The embodiments of the present invention are described above with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of the present invention, many forms can be made without departing from the purpose of the present invention and the scope of protection of the claims, and they all fall within the protection of the present invention.

Claims (32)

  1. 一种物理下行共享信道PDSCH的调度方法,其特征在于,用于基站,所述方法包括:A scheduling method for physical downlink shared channel PDSCH, characterized in that it is used in a base station, and the method includes:
    向终端设备发送所述终端设备特定的下行控制信息DCI,所述DCI用于调度物理下行共享信道PDSCH传输,并通过所述DCI指示调度的所述PDSCH的类型或加扰调度的所述PDSCH所使用的无线网络临时标识RNTI,其中,加扰不同类型的所述PDSCH使用的RNTI不同,所述PDSCH的类型包括:单播PDSCH或组播PDSCH。Send the terminal device-specific downlink control information DCI to the terminal device, where the DCI is used to schedule physical downlink shared channel PDSCH transmission, and the DCI indicates the type of the scheduled PDSCH or the scrambled scheduled PDSCH location The used radio network temporary identifier RNTI, where different RNTIs are used to scramble the different types of PDSCHs, and the types of the PDSCHs include: unicast PDSCH or multicast PDSCH.
  2. 如权利要求1所述的方法,其中,对于组播PDSCH,向不同终端设备发送的DCI调度的PDSCH相同。The method according to claim 1, wherein, for the multicast PDSCH, the DCI scheduled PDSCHs sent to different terminal devices are the same.
  3. 如权利要求1所述的方法,其特征在于,通过所述DCI指示调度的所述PDSCH的类型或加扰调度的所述PDSCH所使用的RNTI,包括以下至少一项:The method according to claim 1, wherein the indication of the type of the scheduled PDSCH or the RNTI used for the scrambled scheduled PDSCH through the DCI includes at least one of the following:
    通过所述DCI中包含的第一指示域的取值,指示所述PDSCH的类型或所述RNTI,其中,所述第一指示域的不同取值指示不同的PDSCH的类型或不同的RNTI;Indicating the type of the PDSCH or the RNTI through the value of the first indicator field included in the DCI, where different values of the first indicator field indicate different PDSCH types or different RNTIs;
    通过所述DCI所在的控制资源集合CORESET或搜索空间,指示所述PDSCH的类型或所述RNTI,其中,所述DCI位于不同的CORESET或搜索空间对应不同的PDSCH的类型或不同的RNTI;Indicate the type of the PDSCH or the RNTI through the control resource set CORESET or search space where the DCI is located, where the DCI is located in a different CORESET or search space corresponding to different PDSCH types or different RNTIs;
    通过所述DCI使用的格式,指示所述PDSCH的类型或所述RNTI,其中,不同格式的DCI对应不同的PDSCH的类型或不同的RNTI;Indicate the type of the PDSCH or the RNTI through the format used by the DCI, where the DCI of different formats corresponds to different PDSCH types or different RNTIs;
    通过加扰所述DCI的循环冗余校验CRC使用的RNTI,指示所述PDSCH的类型或所述RNTI,其中,加扰所述DCI的CRC使用的不同RNTI对应不同的PDSCH的类型或不同的RNTI。By scrambling the RNTI used by the cyclic redundancy check CRC of the DCI, the type of the PDSCH or the RNTI is indicated, where different RNTIs used by the CRC for scrambling the DCI correspond to different PDSCH types or different types RNTI.
  4. 如权利要求1至3任一项所述的方法,其中,所述DCI中还包括以下至少一项:The method according to any one of claims 1 to 3, wherein the DCI further includes at least one of the following:
    下行链路分配索引DAI;Downlink allocation index DAI;
    PDSCH到HARQ反馈定时指示信息;PDSCH to HARQ feedback timing indication information;
    物理上行控制信道PUCCH的资源指示信息;Physical uplink control channel PUCCH resource indication information;
    PUCCH的传输功率控制命令。PUCCH transmission power control command.
  5. 如权利要求4所述的方法,其中,The method of claim 4, wherein:
    针对不同的所述PDSCH的类型或者不同RNTI加扰的PDSCH,所述DCI中的DAI分别进行计算;或者,For different PDSCH types or PDSCH scrambled by different RNTIs, the DAI in the DCI is calculated separately; or,
    针对所有的所述PDSCH的类型或者所有RNTI加扰的PDSCH,所述DCI中的DAI进行累计计算。For all the PDSCH types or all RNTI scrambled PDSCHs, the DAI in the DCI is cumulatively calculated.
  6. 如权利要求4所述的方法,其中,所述DCI中的所述PDSCH到HARQ反馈定时指示信息用于指示预定参数集合中的参数,其中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH,所述预定参数集合不同。The method according to claim 4, wherein the PDSCH to HARQ feedback timing indication information in the DCI is used to indicate parameters in a predetermined parameter set, wherein, for different types of PDSCHs or PDSCHs scrambled by different RNTIs, The predetermined parameter sets are different.
  7. 如权利要求4所述的方法,其中,所述DCI中的所述PDSCH到HARQ反馈定时指示信息用于指示预定参数集合中的参数,其中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH,所述预定参数集合相同。The method according to claim 4, wherein the PDSCH to HARQ feedback timing indication information in the DCI is used to indicate parameters in a predetermined parameter set, wherein, for different types of PDSCHs or PDSCHs scrambled by different RNTIs, The predetermined parameter sets are the same.
  8. 如权利要求4所述的方法,其中,所述DCI中的所述PUCCH资源指示信息用于指示预定PUCCH资源集合中的资源,其中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH,所述预定PUCCH资源集合不同。The method according to claim 4, wherein the PUCCH resource indication information in the DCI is used to indicate resources in a predetermined PUCCH resource set, wherein, for different types of PDSCHs or PDSCHs scrambled by different RNTIs, the The predetermined PUCCH resource sets are different.
  9. 如权利要求4所述的方法,其中,所述DCI中的所述PUCCH资源指示信息用于指示预定PUCCH资源集合中的资源,其中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH,所述预定PUCCH资源信息相同。The method according to claim 4, wherein the PUCCH resource indication information in the DCI is used to indicate resources in a predetermined PUCCH resource set, wherein, for different types of PDSCHs or PDSCHs scrambled by different RNTIs, the The predetermined PUCCH resource information is the same.
  10. 如权利要求4所述的方法,其中,在向终端设备发送终端设备特定的下行控制信息DCI之前,所述方法还包括:The method according to claim 4, wherein, before sending the terminal device specific downlink control information DCI to the terminal device, the method further comprises:
    向所述终端设备发送配置信令,其中,所述配置信令中包括PUCCH的功率控制调整状态配置信息,其中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH对应DCI调度的PUCCH,分别配置所述功率控制调整状态配 置信息。Send configuration signaling to the terminal device, where the configuration signaling includes the power control adjustment state configuration information of the PUCCH, where the PDSCH scrambled for different types of PDSCHs or different RNTIs corresponds to the PUCCH scheduled by DCI and is configured separately The power control adjustment state configuration information.
  11. 如权利要求4所述的方法,其中,在向终端设备发送终端设备特定的下行控制信息DCI之前,所述方法还包括:The method according to claim 4, wherein, before sending the terminal device specific downlink control information DCI to the terminal device, the method further comprises:
    向所述终端设备发送配置信令,其中,所述配置信令中包括PUCCH的功率控制调整状态配置信息,其中,针对不同类型的PDSCH或不同RNTI加扰的PDSCH对应DCI调度的PUCCH,配置统一的所述功率控制调整状态配置信息。Send configuration signaling to the terminal device, where the configuration signaling includes the power control adjustment state configuration information of the PUCCH, where for different types of PDSCHs or different RNTI scrambled PDSCHs corresponding to the DCI scheduled PUCCH, the configuration is unified The power control adjustment state configuration information.
  12. 如权利要求4所述的方法,其中,The method of claim 4, wherein:
    针对不同的所述PDSCH的类型或不同RNTI加扰的PDSCH对应的DCI,所述PUCCH传输功率控制命令所指示的传输功率,分别累计;或者,For different PDSCH types or DCIs corresponding to PDSCHs scrambled by different RNTIs, the transmission power indicated by the PUCCH transmission power control command is accumulated separately; or,
    针对所有的所述PDSCH的类型或所有RNTI加扰的PDSCH对应的DCI,所述PUCCH传输功率控制命令所指示的传输功率,共同累计。For all the PDSCH types or the DCI corresponding to all RNTI scrambled PDSCHs, the transmission power indicated by the PUCCH transmission power control command is accumulated together.
  13. 一种PDSCH接收方法,其特征在于,应用于终端设备,所述方法包括:A PDSCH receiving method, characterized in that it is applied to a terminal device, and the method includes:
    接收所述终端设备特定的下行控制信息DCI,所述DCI用于调度物理下行共享信道PDSCH传输;Receiving the specific downlink control information DCI of the terminal device, where the DCI is used to schedule physical downlink shared channel PDSCH transmission;
    根据所述DCI所指示的所述PDSCH的类型或所述DCI所指示的加扰的所述PDSCH所使用的RNTI,接收目标PDSCH,其中,所述PDSCH的类型包括:单播PDSCH或组播PDSCH。Receive a target PDSCH according to the type of the PDSCH indicated by the DCI or the RNTI used by the scrambled PDSCH indicated by the DCI, where the type of the PDSCH includes: unicast PDSCH or multicast PDSCH .
  14. 如权利要求13所述的方法,其中,所述DCI所指示的所述PDSCH的类型或加扰所述PDSCH所使用的RNTI通过以下之一获取:The method according to claim 13, wherein the type of the PDSCH indicated by the DCI or the RNTI used to scramble the PDSCH is obtained by one of the following:
    根据所述DCI中的第一指示域的取值,获取所述PDSCH的类型或所述RNTI,其中,所述第一指示域的不同取值指示不同的PDSCH的类型或不同的RNTI;Acquiring the PDSCH type or the RNTI according to the value of the first indicator field in the DCI, where different values of the first indicator field indicate different PDSCH types or different RNTIs;
    根据所述DCI所在的CORESET或搜索空间,获取所述PDSCH的类型或所述RNTI,其中,所述DCI位于不同的CORESET或搜索空间指示不同 的PDSCH的类型或不同的RNTI;Acquiring the type of the PDSCH or the RNTI according to the CORESET or search space where the DCI is located, where the location of the DCI in a different CORESET or search space indicates different PDSCH types or different RNTIs;
    根据所述DCI所使用的格式,获取所述PDSCH的类型或所述RNTI,其中,不同格式的DCI指示不同的PDSCH的类型或不同的RNTI;Acquiring the type of the PDSCH or the RNTI according to the format used by the DCI, where the DCI of different formats indicates different PDSCH types or different RNTIs;
    通过加扰所述DCI的循环冗余校验CRC使用的RNTI,指示所述PDSCH的类型或所述RNTI,其中,加扰所述DCI的CRC使用的不同RNTI对应不同的PDSCH的类型或不同的RNTI。By scrambling the RNTI used by the cyclic redundancy check CRC of the DCI, the type of the PDSCH or the RNTI is indicated, where different RNTIs used by the CRC for scrambling the DCI correspond to different PDSCH types or different types RNTI.
  15. 如权利要求13所述的方法,其中,在接收所述目标PDSCH之后,所述方法还包括:The method according to claim 13, wherein, after receiving the target PDSCH, the method further comprises:
    使用与所述DCI所指示的所述PDSCH的类型对应的RNTI,解扰所述目标PDSCH;或者,使用所述DCI所指示的RNTI,解扰所述目标PDSCH。The RNTI corresponding to the type of the PDSCH indicated by the DCI is used to descramble the target PDSCH; or the RNTI indicated by the DCI is used to descramble the target PDSCH.
  16. 如权利要求13至15任一项所述的方法,其中,The method according to any one of claims 13 to 15, wherein:
    所述DCI中还包括:PDSCH到HARQ反馈定时指示信息;The DCI also includes: PDSCH to HARQ feedback timing indication information;
    在接收所述PDCCH上传输的DCI之后,所述方法还包括:After receiving the DCI transmitted on the PDCCH, the method further includes:
    根据所述PDSCH到HARQ反馈定时指示信息确定反馈所述目标PDSCH的时隙或子时隙。Determine the time slot or sub-slot for feeding back the target PDSCH according to the PDSCH to HARQ feedback timing indication information.
  17. 如权利要求16所述的方法,其中,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PDSCH到HARQ反馈定时指示信息所对应的参数集合不同。The method according to claim 16, wherein in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the parameter sets corresponding to the PDSCH to HARQ feedback timing indication information are different.
  18. 如权利要求16所述的方法,其中,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PDSCH到HARQ反馈定时指示信息所对应的参数集合相同。The method according to claim 16, wherein in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the parameter sets corresponding to the PDSCH to HARQ feedback timing indication information are the same.
  19. 如权利要求13至15任一项所述的方法,其中,The method according to any one of claims 13 to 15, wherein:
    所述DCI还包括:PUCCH的资源指示信息;The DCI also includes: PUCCH resource indication information;
    在接收所述PDCCH上传输的DCI之后,所述方法还包括:After receiving the DCI transmitted on the PDCCH, the method further includes:
    根据所述DCI中的PUCCH的资源指示信息,确定所述目标PDSCH对应的HARQ反馈时的PUCCH资源。According to the PUCCH resource indication information in the DCI, the PUCCH resource during HARQ feedback corresponding to the target PDSCH is determined.
  20. 如权利要求19所述的方法,其中,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PUCCH资源指示信息所对应的PUCCH资源集合不同。The method according to claim 19, wherein in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the PUCCH resource sets corresponding to the PUCCH resource indication information are different.
  21. 如权利要求20所述的方法,其中,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PUCCH资源指示信息所对应的PUCCH资源集合相同。The method according to claim 20, wherein in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the PUCCH resource sets corresponding to the PUCCH resource indication information are the same.
  22. 如权利要求13至15任一项所述的方法,其中,The method according to any one of claims 13 to 15, wherein:
    所述DCI还包括:PUCCH的传输功率控制信令;The DCI also includes: PUCCH transmission power control signaling;
    在接收所述PDCCH上传输的DCI之后,所述方法还包括:根据所述DCI中的PUCCH的传输功率控制信令,确定所述目标PDSCH对应的HARQ反馈时的PUCCH的传输功率。After receiving the DCI transmitted on the PDCCH, the method further includes: determining the transmission power of the PUCCH during HARQ feedback corresponding to the target PDSCH according to the transmission power control signaling of the PUCCH in the DCI.
  23. 如权利要求22所述的方法,其中,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PUCCH传输功率控制命令所对应的PUCCH的功率控制调整状态不同。The method according to claim 22, wherein in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the PUCCH power control adjustment states corresponding to the PUCCH transmission power control commands are different.
  24. 如权利要求22所述的方法,其中,指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PUCCH传输功率控制命令所对应的PUCCH的功率控制调整状态相同。The method according to claim 22, wherein in DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the power control adjustment states of the PUCCH corresponding to the PUCCH transmission power control commands are the same.
  25. 如权利要求22所述的方法,其中,The method of claim 22, wherein:
    指示不同类型的PDSCH或不同RNTI加扰的PDSCH的DCI中,所述PUCCH传输功率控制命令所指示的传输功率分别累计;或者,In DCI indicating different types of PDSCHs or PDSCHs scrambled by different RNTIs, the transmission power indicated by the PUCCH transmission power control command is accumulated respectively; or,
    针对所有的所述PDSCH的类型或所有RNTI加扰的PDSCH,所述PUCCH传输功率控制命令所指示的传输功率,共同累计。For all PDSCH types or all RNTI scrambled PDSCHs, the transmission power indicated by the PUCCH transmission power control command is accumulated together.
  26. 如权利要求13至15任一项所述的方法,其中,The method according to any one of claims 13 to 15, wherein:
    所述DCI中还包括:DAI;The DCI also includes: DAI;
    在接收与所述PDSCH的类型相应的目标PDSCH之后,所述方法还包括:After receiving the target PDSCH corresponding to the type of the PDSCH, the method further includes:
    根据所述DCI中的DAI,构建所述目标PDSCH的HARQ反馈码本。According to the DAI in the DCI, the HARQ feedback codebook of the target PDSCH is constructed.
  27. 如权利要求26所述的方法,其中,The method of claim 26, wherein:
    针对不同的所述PDSCH的类型或不同RNTI加扰的PDSCH,所述DCI中的DAI分别进行计算;或者,For different PDSCH types or PDSCH scrambled by different RNTIs, the DAI in the DCI is calculated separately; or,
    针对所有的所述PDSCH的类型或者所有RNTI加扰的PDSCH,所述DCI中的DAI进行累计计算。For all the PDSCH types or all RNTI scrambled PDSCHs, the DAI in the DCI is cumulatively calculated.
  28. 一种网络设备,其特征在于,包括:A network device, characterized in that it comprises:
    发送模块,用于向终端设备发送所述终端设备特定的DCI,所述DCI用于调度PDSCH传输,通过所述DCI指示调度的所述PDSCH的类型或加扰调度的所述PDSCH所使用的无线网络临时标识RNTI,其中,加扰不同类型的所述PDSCH使用的RNTI不同,所述PDSCH的类型包括:单播PDSCH或组播PDSCH。The sending module is configured to send the terminal device-specific DCI to the terminal device, the DCI is used to schedule PDSCH transmission, and the DCI indicates the type of the scheduled PDSCH or the radio used by the scrambled scheduled PDSCH The network temporary identifier RNTI, where different RNTIs are used to scramble the different types of PDSCHs, and the types of the PDSCHs include: unicast PDSCH or multicast PDSCH.
  29. 一种终端设备,其特征在于,包括:A terminal device, characterized in that it comprises:
    第一接收模块,用于接收所述终端设备特定的下行控制信息DCI,所述DCI用于调度物理下行共享信道PDSCH传输;The first receiving module is configured to receive the specific downlink control information DCI of the terminal equipment, where the DCI is used to schedule physical downlink shared channel PDSCH transmission;
    第二接收模块,用于根据所述DCI所指示的所述PDSCH的类型或所述DCI所指示的加扰所述PDSCH所使用的RNTI,接收目标PDSCH,其中,所述PDSCH的类型包括:单播PDSCH或组播PDSCH。The second receiving module is configured to receive a target PDSCH according to the PDSCH type indicated by the DCI or the RNTI used to scramble the PDSCH indicated by the DCI, wherein the PDSCH type includes: single Broadcast PDSCH or multicast PDSCH.
  30. 一种网络设备,其特征在于,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求1至12中任一项所述的方法的步骤。A network device, characterized by comprising: a memory, a processor, and a computer program stored on the memory and capable of running on the processor, and when the computer program is executed by the processor, the implementation is as claimed in the claims The steps of the method described in any one of 1 to 12.
  31. 一种终端设备,其特征在于,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求13至27中任一项所述的方法的步骤。A terminal device, characterized by comprising: a memory, a processor, and a computer program stored on the memory and capable of running on the processor, and when the computer program is executed by the processor, the implementation is as claimed in the claims Steps of the method of any one of 13-27.
  32. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现:A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and the computer program is implemented when executed by a processor:
    如权利要求1至12中任一项所述的方法的步骤;或者The steps of the method according to any one of claims 1 to 12; or
    如权利要求13至27中任一项所述的方法的步骤。The steps of the method according to any one of claims 13-27.
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