WO2019083317A1 - Procédé et dispositif de commande selon des dci communes de groupe dans un système de communication mobile - Google Patents

Procédé et dispositif de commande selon des dci communes de groupe dans un système de communication mobile

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Publication number
WO2019083317A1
WO2019083317A1 PCT/KR2018/012816 KR2018012816W WO2019083317A1 WO 2019083317 A1 WO2019083317 A1 WO 2019083317A1 KR 2018012816 W KR2018012816 W KR 2018012816W WO 2019083317 A1 WO2019083317 A1 WO 2019083317A1
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WO
WIPO (PCT)
Prior art keywords
sfi
carrier
slot
dci
resource
Prior art date
Application number
PCT/KR2018/012816
Other languages
English (en)
Korean (ko)
Inventor
이윤정
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to JP2020523440A priority Critical patent/JP6918232B2/ja
Priority to CN201880069043.1A priority patent/CN111279777B/zh
Priority to EP22202172.7A priority patent/EP4145754B1/fr
Priority to EP18871281.4A priority patent/EP3700273B1/fr
Priority claimed from KR1020180128638A external-priority patent/KR102033127B1/ko
Publication of WO2019083317A1 publication Critical patent/WO2019083317A1/fr
Priority to US16/857,095 priority patent/US11039438B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates generally to wireless communications, and more particularly, to a method and apparatus for operating in accordance with group common DCI (downlink control information) in a wireless communication system, especially a new radio access technology (NR).
  • group common DCI downlink control information
  • NR new radio access technology
  • 3GPP third generation partnership project
  • LTE Long-term evolution
  • 3GPP LTE requires cost savings per bit, improved serviceability, flexible use of frequency bands, simple structure, open interface and adequate power consumption of the terminal as a high level requirement.
  • NR new radio access technology
  • ITU international telecommunication union
  • 3GPP identifies the technology components needed to successfully standardize NRs to meet both urgent market demands and the longer-term requirements of the ITU radio communication sector (IMT) -2020 process.
  • IMT ITU radio communication sector
  • NR should also be able to use any spectrum band of at least 100 GHz that can be used for wireless communications in the distant future.
  • NR targets a single technology framework covering all deployment scenarios, usage scenarios, and requirements, including enhanced mobile broadband (eMBB), massive machine-type-communications (mMTC), ultra-reliable and low latency communications .
  • eMBB enhanced mobile broadband
  • mMTC massive machine-type-communications
  • ultra-reliable and low latency communications eMBB
  • NR should be forward-compatible in nature.
  • the initial connection of the NR is intended to acquire the initial synchronization and system information of the downlink and to connect the radio resource control (RRC) through the random access procedure.
  • RRC radio resource control
  • This is basically the same as the purpose of the initial access technology of 3GPP LTE / LTE-A Do.
  • NR includes various element technologies from the initial access stage to support multi-beam transmission and broadband.
  • NR can effectively multiplex various services such as eMBB and URLLC in time and frequency domain by using symbol-level time alignment for various slot lengths, minislots, and transmission methods using different subcarrier spacing Provides flexibility. Also, unlike LTE, NR defines the uplink / downlink resource allocation as symbol level within one slot.
  • a slot structure capable of transmitting HARQ ACK / NACK (acknowledgment / non-acknowledgment) directly in a transmission slot to reduce hybrid automatic repeat request (HARQ) delay is defined.
  • the slot structure is defined as a self-contained structure I call it.
  • NR supports a common frame structure that forms a frequency division duplex (FDD) or a time division duplex (TDD) frame through a combination of various slots.
  • FDD frequency division duplex
  • TDD time division duplex
  • the dynamic TDD scheme is introduced to freely and dynamically adjust the transmission direction of individual cells according to traffic characteristics.
  • a group common control channel is defined to transmit information on a slot structure.
  • Information on the slot structure can be transmitted through the downlink control information (DCI) on the group common control channel.
  • DCI downlink control information
  • the present invention discusses UE operations associated with a group common control channel and / or DCI.
  • a method for operating a user equipment (UE) in a wireless communication system.
  • the method includes receiving a first slot formation indication (SFI) for an unpaired carrier from a network, configuring a first slot in the unpacked carrier based on the first SFI, generating a supplemental uplink (SUL) carrier Receiving a second SFI for the second SFI from the network, and configuring a second slot in the SUL carrier based on the second SFI.
  • SFI slot formation indication
  • SUL supplemental uplink
  • a user equipment in a wireless communication system.
  • the UE includes a memory, a transceiver, and a processor coupled to the memory and transceiver.
  • the processor controls the transceiver to receive a first slot formation indication (SFI) for an unpaired carrier from the network, constructs a first slot in the unpacked carrier based on the first SFI, controls the transceiver to receive a second SFI for a supplemental uplink carrier from the network, and configures a second slot on the SUL carrier based on the second SFI.
  • SFI slot formation indication
  • the first SFI and the second SFI are separate information.
  • a method for operating a base station (BS) in a wireless communication system.
  • the method includes transmitting a first slot formation indication (SFI) for an unpaired carrier to a user equipment (UE), and transmitting a second SFI for a supplemental uplink (SUL) carrier to the UE .
  • SFI slot formation indication
  • UE user equipment
  • SUL supplemental uplink
  • the UE can efficiently receive information on the slot structure.
  • FIG. 1 shows an example of a wireless communication system to which the technical features of the present invention can be applied.
  • FIG. 2 shows another example of a wireless communication system to which the technical features of the present invention can be applied.
  • FIG. 3 shows an example of a frame structure to which the technical features of the present invention can be applied.
  • Fig. 4 shows another example of a frame structure to which the technical features of the present invention can be applied.
  • FIG. 5 shows an example of a resource grid to which the technical features of the present invention can be applied.
  • FIG. 6 shows an example of a synchronization channel to which the technical features of the present invention can be applied.
  • FIG. 7 shows an example of a frequency allocation scheme to which the technical features of the present invention can be applied.
  • Figure 8 shows an example of multiple BWPs to which the technical features of the present invention may be applied.
  • Figure 9 illustrates how a UE operates in accordance with one embodiment of the present invention.
  • FIG. 10 shows a UE in which an embodiment of the present invention is implemented.
  • Figure 11 illustrates how a BS operates in accordance with an embodiment of the present invention.
  • FIG. 12 shows a BS in which an embodiment of the present invention is implemented.
  • the technical features described below can be used in a communication standard by a 3rd Generation Partnership Project (3GPP) standardization organization or a communication standard by an IEEE (institute of electrical and electronics engineers) standardization organization.
  • the communication specification by the 3GPP standardization organization includes the evolution of long term evolution (LTE) and / or LTE systems.
  • the evolution of LTE systems includes LTE-A (advanced), LTE-A Pro, and / or 5G NR (new radio).
  • the communication standard by the IEEE standardization organization includes a wireless local area network (WLAN) system such as IEEE 802.11a / b / g / n / ac / ax.
  • WLAN wireless local area network
  • the system described above may be used to transmit various multiple access technologies such as orthogonal frequency division multiple access (OFDMA) and / or single carrier frequency division multiple access (SC-FDMA) to a downlink (DL) and / or uplink ).
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • OFDMA and SC-FDMA may be mixed in DL and / or UL.
  • FIG. 1 shows an example of a wireless communication system to which the technical features of the present invention can be applied.
  • FIG. 1 is a system architecture based on an evolved-universal terrestrial radio access network (E-UTRAN).
  • E-UTRAN evolved-universal terrestrial radio access network
  • the above-mentioned LTE is part of E-UMTS (evolved-UMTS) using E-UTRAN.
  • a wireless communication system includes at least one user equipment (UE) 10, an E-UTRAN, and an evolved packet core (EPC).
  • UE 10 refers to a communication device carried by a user.
  • the UE 10 may be fixed or mobile and may be referred to by other terms such as a mobile station (MS), a user terminal (UT), a subscriber station (SS), a wireless device,
  • MS mobile station
  • UT user terminal
  • SS subscriber station
  • wireless device a wireless device
  • the E-UTRAN is composed of one or more base stations (BSs) 20.
  • the BS 20 provides an end of the E-UTRA user plane and control plane protocol towards the UE 10.
  • the BS 20 generally refers to a fixed station in communication with the UE 10.
  • the BS 20 performs functions such as radio resource management (RRM), radio bearer (RB) control, access control, wireless admission control, measurement configuration / provision, and dynamic resource allocation (scheduler) Host.
  • RRM radio resource management
  • RB radio bearer
  • the BS 20 may be referred to by other terms such as an evolved NodeB (eNB), a base transceiver system (BTS), an access point, and the like.
  • eNB evolved NodeB
  • BTS base transceiver system
  • access point and the like.
  • a downlink (DL) indicates communication from the BS 20 to the UE 10.
  • the uplink (UL) indicates the communication from the UE 10 to the BS 20.
  • the sidelink (SL) indicates the communication between the UEs 10.
  • the transmitter may be part of the BS 20, and the receiver may be part of the UE 10.
  • the transmitter may be part of the UE 10, and the receiver may be part of the BS 20.
  • the transmitter and the receiver may be part of the UE 10.
  • the EPC includes a mobility management entity (MME), a serving gateway (S-GW), and a packet data network (PDN) gateway.
  • MME mobility management entity
  • S-GW serving gateway
  • PDN packet data network gateway
  • the MME hosts functions such as non-access stratum (NAS) security, idle state mobility processing, and evolved packet system (EPS) bearer control.
  • the S-GW hosts functions such as mobility anchoring and the like.
  • the S-GW is a gateway having the E-UTRAN as an end point.
  • the MME / S-GW 30 will be referred to simply as a " gateway ", but this entity is understood to include both the MME and the S-GW.
  • the P-GW hosts UE IP (Internet protocol) address assignment, packet filtering, and the like.
  • the P-GW is a gateway having the PDN as an end point.
  • the P-GW is connected to the external network.
  • the UE 10 is connected to the BS 20 by a Uu interface.
  • the UEs 10 are interconnected by a PC5 interface.
  • the BSs 20 are interconnected by an X2 interface.
  • the BS 20 is also connected to the EPC via the S1 interface. More specifically, it is connected to the MME by the S1-MME interface and by the S1-U interface to the S-GW.
  • the S1 interface supports a many-to-many relationship between the MME / S-GW and the BS.
  • Figure 2 shows another example of a wireless communication system to which the technical features of the present invention can be applied.
  • Figure 2 illustrates a system architecture based on a 5G NR (new radio access technology) system.
  • An entity used in a 5G NR system (hereinafter simply referred to as "NR") may absorb some or all of the functions of the entity (eg, eNB, MME, S-GW) introduced in FIG.
  • An entity used in an NR system may be identified with the name " NG " to distinguish it from LTE.
  • the wireless communication system includes one or more UEs 11, a next-generation RAN (NG-RAN) and a fifth-generation core network 5GC.
  • the NG-RAN consists of at least one NG-RAN node.
  • the NG-RAN node is an entity corresponding to the BS 20 shown in Fig.
  • the NG-RAN node consists of at least one gNB 21 and / or at least one ng-eNB 22.
  • the gNB 21 provides an end of the NR user plane and control plane protocol towards the UE 11.
  • the Ng-eNB 22 provides an end of the E-UTRA user plane and control plane protocol towards the UE 11.
  • 5GC includes an access and mobility management function (AMF), a user plane function (UPF), and a session management function (SMF).
  • AMF access and mobility management function
  • UPF user plane function
  • SMF session management function
  • AMF hosts features such as NAS security, idle state mobility handling, and so on.
  • AMF is an entity that includes the functions of the conventional MME.
  • the UPF hosts features such as mobility anchoring and protocol data unit (PDU) processing.
  • PDU protocol data unit
  • the UPF is an entity including the functions of the conventional S-GW.
  • the SMF hosts features such as UE IP address assignment and PDU session control.
  • gNB and ng-eNB are interconnected via the Xn interface.
  • the gNB and ng-eNB are also connected to the 5GC via the NG interface. More specifically, it is connected to the AMF via the NG-C interface and to the UPF via the NG-U interface.
  • one radio frame is composed of 10 subframes, and one subframe is composed of 2 slots.
  • the length of one subframe may be 1 ms, and the length of one slot may be 0.5 ms.
  • the transmission time (generally, over one subframe) of a transmission block from an upper layer to a physical layer is defined as a transmission time interval (TTI).
  • TTI may be a minimum unit of scheduling.
  • NR supports a variety of new images, so the structure of the radio frame can vary.
  • NR supports multiple subcarrier intervals in the frequency domain.
  • Table 1 shows the various neural logarithms supported by NR. Each new locale can be identified by an index ⁇ .
  • the subcarrier spacing may be set to one of 15, 30, 60, 120 and 240 kHz identified by the index ⁇ .
  • Transmission of user data for example, physical uplink shared channel (PUSCH), physical downlink shared channel (PDSCH)
  • PUSCH physical uplink shared channel
  • PDSCH physical downlink shared channel
  • a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcasting channel (PBCH) may not be supported according to a subcarrier interval. It may not be supported at a specific subcarrier interval (for example, 60 kHz).
  • the number of slots and the number of slots included in one radio frame / subframe may differ depending on various new logics, that is, various subcarrier intervals.
  • Table 2 shows examples of the number of OFDM symbols per slot, the number of slots per radio frame, and the number of slots per subframe in a general CP (cyclic prefix).
  • symbols represent signals that are transmitted during a particular time interval.
  • the symbol may represent a signal generated by OFDM processing. That is, the symbol may refer to an OFDM / OFDMA symbol or an SC-FDMA symbol or the like.
  • the CP may be located between each symbol.
  • Fig. 4 shows another example of a frame structure to which the technical features of the present invention can be applied.
  • a frequency division duplex (FDD) and / or a time division duplex (TDD) may be applied to a wireless communication system to which the embodiment of the present invention is applied.
  • FDD frequency division duplex
  • TDD time division duplex
  • LTE / LTE-A UL subframe and DL subframe are allocated on a subframe basis.
  • symbols in a slot can be classified into a DL symbol (denoted as D), a floating symbol (denoted X), and a UL symbol (denoted U).
  • D DL symbol
  • X floating symbol
  • U UL symbol
  • the UE assumes that the DL transmission occurs only on the DL symbol or the floating symbol.
  • the UE In a slot of an UL frame, the UE must transmit only UL symbols or floating symbols.
  • Table 3 shows an example of the slot format identified by the corresponding format index.
  • the contents of Table 3 may be applied in common to a specific cell or commonly applied to adjacent cells, or may be applied to each UE separately or differently.
  • Table 3 shows only a portion of the slot format actually defined in NR. A particular assignment scheme may be changed or added.
  • the UE may receive the slot format configuration via higher layer signaling (i. E., Radio resource control (RRC) signaling).
  • RRC Radio resource control
  • the UE may receive the slot format configuration via downlink control information (DCI) received on the PDCCH.
  • DCI downlink control information
  • the UE may receive the slot format configuration through a combination of higher layer signaling and DCI.
  • FIG. 5 shows an example of a resource grid to which the technical features of the present invention can be applied.
  • the example shown in Figure 5 is a time-frequency resource grid used in NR.
  • the example shown in Fig. 5 can be applied to UL and / or DL.
  • a plurality of slots are included in one subframe in the time domain. Specifically, when expressed according to the value of " [mu] ", " 14 * 2 [mu] " symbols can be represented in the resource grid.
  • one resource block (RB) may occupy 12 consecutive subcarriers.
  • One RB may be called a physical resource block (PRB), and 12 resource elements (REs) may be included in each PRB.
  • the number of assignable RBs may be determined based on the minimum and maximum values.
  • the number of allocatable RBs can be individually configured according to the new logistics (" ").
  • the number of assignable RBs may be configured with the same value for UL and DL, or may be configured with different values for UL and
  • a cell search method in NR is described.
  • the UE may perform cell search to obtain time and / or frequency synchronization with the cell and obtain a cell ID.
  • Synchronization channels such as PSS, SSS and PBCH may be used for cell search.
  • the PSS and the SSS may include one symbol and 127 subcarriers.
  • the PBCH may include 3 symbols and 240 subcarriers.
  • the PSS is used to acquire the SS / PBCH block (synchronization signal / PBCH block) symbol timing.
  • the PSS indicates three hypotheses for cell ID identification.
  • the SSS is used for cell ID identification.
  • SSS indicates 336 hypotheses.
  • 1008 physical layer cell IDs can be configured by the PSS and the SSS.
  • the SS / PBCH block may be repeatedly transmitted according to a predetermined pattern in a 5 ms window.
  • both SS / PBCH block # 1 to SS / PBCH block #L may contain the same information, but may be transmitted via beams in different directions. That is, a quasi co-located (QCL) relationship may not be applied to the SS / PBCH block in the 5 ms window.
  • the beam used to receive the SS / PBCH block may be used for subsequent operation (e.g., random access operation) between the UE and the network.
  • the SS / PBCH block may be repeated for a certain period of time. The repetition period can be individually configured according to the neurological background.
  • the PBCH has 20 RBs for the second symbol / fourth symbol and 8 RBs for the third symbol.
  • the PBCH includes a demodulation reference signal (DM-RS) for decoding the PBCH.
  • DM-RS demodulation reference signal
  • the frequency domain for the DM-RS is determined by the cell ID.
  • a special DM-RS i. E., PBCH-DMRS
  • CRS cell-specific reference signal
  • the SS / PBCH block may include information indicating an index.
  • the PBCH performs various functions.
  • the PBCH can perform a function of broadcasting a master information block (MIB).
  • MIB master information block
  • SI System information
  • SIB1 system information block type-
  • the minimum SI, excluding the MIB, can be called the remaining minimum SI (RMSI). That is, the RMSI can refer to SIB1.
  • the MIB contains information necessary for decoding SIB1.
  • the MIB may include information on sub-carrier intervals applied to SIB1 (and MSG 2/4, other SI used in the random access procedure), information on the frequency offset between the SS / PBCH block and the subsequently transmitted RB, / SIB, information for decoding the PDCCH (e.g., information about a control resource set / a control resource set / DM-RS to be described later).
  • the MIB may be transmitted periodically, and the same information may be transmitted repeatedly over a time interval of 80 ms.
  • SIB1 may be repeatedly transmitted via the PDSCH.
  • SIB1 includes control information for initial connection of the UE and information for decoding another SIB.
  • the search space for the PDCCH corresponds to the area in which the UE performs blind decoding on the PDCCH.
  • the search space for the PDCCH is divided into a common search space (CSS) and a UE-specific search space (USS).
  • the size of each search space and / or the size of the control channel element (CCE) included in the PDCCH is determined according to the PDCCH format.
  • a resource element group (REG) and a CCE are defined for the PDCCH.
  • the concept of CORESET is defined.
  • one REG corresponds to 12 REs, that is, one RB transmitted through one OFDM symbol.
  • Each REG contains a DM-RS.
  • One CCE includes a plurality of REGs (e.g., six REGs).
  • the PDCCH can be transmitted over a resource consisting of 1, 2, 4, 8, or 16 CCEs. The number of CCEs can be determined according to the aggregation level.
  • 1 CCE is set when the set level is 1, 2 CCE is set when the set level is 2, 4 CCE is set when the set level is 4, 8 CCE is set when the set level is 8, and 16 CCE is set when the set level is set to 16 May be included in the PDCCH for the UE.
  • CORESET can be defined in 1/2/3 OFDM symbols and multiple RBs.
  • the number of symbols used in the PDCCH is defined by the physical control format indicator channel (PCFICH).
  • PCFICH is not used in NR.
  • the number of symbols used in CORESET may be defined by the RRC message (and / or PBCH / SIB1).
  • the frequency domain of CORESET can be defined by the RRC message (and / or PBCH / SIB1) in units of RB.
  • the search space of PDCCH in NR is divided into CSS and USS. Since the USS may be indicated by an RRC message, an RRC connection may be required for the UE to decode the USS.
  • the USS may include control information for PDSCH decoding assigned to the UE.
  • the PDCCH must be decoded, so CSS must be defined.
  • the CSS may be defined when a PDCCH is configured to decode a PDSCH carrying SIBl, or when a PDCCH for receiving MSG 2/4 is configured in a random access procedure.
  • the PDCCH can be scrambled by a radio network temporary identifier (RNTI) for a specific purpose.
  • RNTI radio network temporary identifier
  • the resource allocation scheme in NR is described.
  • a certain number e.g., a maximum of four
  • BWPs bandwidth parts
  • the BWP is a set of consecutive PRBs, which can be represented as a continuous subset of common RBs (CRBs).
  • Each RB in the CRB can be represented by CRB1, CRB2, etc. starting with CRB0.
  • FIG. 7 shows an example of a frequency allocation scheme to which the technical features of the present invention can be applied.
  • a plurality of BWPs may be defined in the CRB grid.
  • the reference point of the CRB grid (which may be referred to as a common reference point, starting point, etc.) is called the so-called " point A " in NR.
  • Point A is indicated by RMSI (i.e., SIB1).
  • RMSI i.e., SIB1
  • the frequency offset between the frequency band in which the SS / PBCH block is transmitted and the point A can be indicated via the RMSI.
  • Point A corresponds to the center frequency of CRB0.
  • the point A may be a point where a variable " k " indicating the frequency band of RE in the NR is set to zero.
  • the plurality of BWPs shown in Fig. 7 are composed of one cell (for example, PCell (primary cell)).
  • a plurality of BWPs may be configured individually or
  • each BWP may be defined by its size and starting point from CRB0.
  • the first BWP, BWP # 0 may be defined by the starting point through an offset from CRB0, and the size of BWP # 0 may be determined through the size for BWP # 0.
  • a specific number (e.g., up to four) of BWPs may be configured for the UE. At a particular point in time, only a certain number (e.g., one) of BWPs can be activated per cell.
  • the number of configurable BWPs or the number of activated BWPs may be configured commonly or individually for UL and DL.
  • the UE may receive the PDSCH, PDCCH and / or CSI (channel state information) RS only in the active DL BWP.
  • the UE may only transmit a PUSCH and / or a physical uplink control channel (PUCCH) to the active UL BWP.
  • PUCCH physical uplink control channel
  • FIG. 8 shows an example of multiple BWPs to which the technical features of the present invention may be applied.
  • three BWPs may be constructed.
  • the first BWP may span a 40 MHz band and a subcarrier spacing of 15 kHz may be applied.
  • the second BWP may span the 10 MHz band and a subcarrier spacing of 15 kHz may be applied.
  • the third BWP may span the 20 MHz band and a subcarrier spacing of 60 kHz may be applied.
  • the UE may configure at least one of the three BWPs as an active BWP and may perform UL and / or DL data communication via the active BWP.
  • the time resource may be indicated in a manner that indicates a time difference / offset based on the transmission time point of the PDCCH allocating DL or UL resources. For example, the starting point of the PDSCH / PUSCH corresponding to the PDCCH and the number of symbols occupied by the PDSCH / PUSCH may be indicated.
  • CA Carrier aggregation
  • PSC primary serving cell
  • PCC primary secondary cell
  • SSC secondary serving cell
  • a slot format is configured in NR.
  • the slot format can be configured semi-statically via RRC signaling.
  • the slot format that is semi-statically configured through RRC signaling is information on the slot format to which the highest priority is applied.
  • the RRC signaling may be transmitted cell-specific, or may be further UE-specific.
  • a symbol determined as a floating symbol by a slot format configured semi-statically can be updated with a DL symbol or a UL symbol at a later time by a semi-static configuration, a group common PDCCH, a UE scheduling DCI, or the like.
  • the group common PDCCH is a channel through which the group common DCI is transmitted.
  • the group common DCI may correspond to DCI format 2_0.
  • the group common PDCCH is a channel commonly transmitted to UEs of a group defined by a specific criterion.
  • the group may be configured via SFI (slot format indication) -RNTI scrambling group common DCI.
  • a UE included in the group may include a scheduled UE and an unscheduled UE.
  • the UE may be separately configured through RRC signaling to determine whether it should receive the group common DCI through the group common PDCCH.
  • the information communicated to the group via the group common DCI includes the dynamic SFI. That is, the dynamic SFI included in the group common DCI can update the resource defined by the floating symbol in the semi-statically configured slot format with a DL symbol or a UL symbol or the like.
  • the dynamic SFI may contain information about the index of the corresponding table.
  • each group common PDCCH / DCI there may be a timing associated therewith.
  • the UE may apply the information transmitted via the group common PDCCH / DCI at its associated timing.
  • the timing should be at least greater than the processing time of the group common PDCCH / DCI.
  • the processing time may vary for each UE, depending on the number of candidates to be monitored to detect the group common PDCCH / DCI. In order to resolve different processing times between UEs, the following may be considered.
  • the group common PDCCH / DCI may always include the SFI starting from the next slot rather than the current slot. The same is true when the period of the group common PDCCH / DCI is one slot. Whether the group common PDCCH / DCI includes the SFI for the current slot or includes the SFI starting from the next slot may be configured by the network and / or implicitly by the number of candidates to be monitored for the group common PDCCH / DCI Can be determined.
  • the SFI may not be applied at least in the first few symbols in the current slot to solve the processing time problem.
  • the SFI may not be applied in the last symbol of the CORESET in which the group common PDCCH / DCI is transmitted from the first symbol of the current slot.
  • SFI may not be applied to the processing time of the last symbol of CORESET + group common PDCCH / DCI in which the group common PDCCH / DCI is transmitted from the first symbol of the current slot.
  • the processing time can be determined as the minimum gap between the search space opportunities required for the UE to detect the group common PDCCH / DCI (and the configuration of potentially identical quasi-collocation) relationships.
  • the resource to which the group common PDCCH / DCI is transmitted needs to be clearly defined.
  • the following options may be considered:
  • the PDCCH / DCI can only be transmitted on semi-statically configured DL resources. Therefore, the UE can know that the resource to read the group common PDCCH / DCI is a DL resource.
  • the UE can not make any assumptions about symbols for which SFI is not applied, and the UE can treat the symbol as a floating resource by a semi-static slot format configuration. For example, the UE may determine that the SFI will not be transmitted on the resource. If the resource comprises a CSI RS configuration, the UE can not determine whether the resource is valid or invalid by the SFI sent on the group common PDCCH / DCI. If the UE determines that the CSI RS resource is valid in the flow resources by the semi-static slot format configuration, the UE may determine that the CSI RS resource is valid even for symbols for which SFI is not applied. That is, the CSI RS configuration may follow the operation on the floating symbols by the semi-static slot format configuration.
  • the UE may determine whether the resource to which the group common PDCCH / DCI is transmitted is valid or invalid by the SFI to which the resource is transmitted on the group common PDCCH / DCI. That is, the resources for the processing time of the group common PDCCH / DCI can be regarded as resources for which the group common PDCCH / DCI is not received. For example, if the processing time is one symbol, it can be considered that the SFI is not detected in the resources for the group common PDCCH / DCI and the additional one symbol. In this case, the same operation can be applied to the resource to which the group common PDCCH / DCI is transmitted. For example, if the UE does not perform measurements while monitoring the control channel, the same measurement may not be performed on the corresponding resources.
  • Option 3 The UE can assume that the resource to which the group common PDCCH / DCI is transmitted is a DL resource, unless indicated by UL resources by the previous SFI.
  • the CSI RS configuration may be valid for that resource. This is based on the assumption that SFI can only be detected on DL resources, and the network can be confident that the required processing time is also composed of DL resources.
  • the UE can regard the resource to which the group common PDCCH / DCI is transmitted as a DL resource regardless of the actually indicated resource.
  • the processing time may be canceled.
  • cancellation of resources requires some processing time.
  • the processing time may be any one of k0, k1, k2, or k2 + uplink control information processing time.
  • the UE may perform the expected operation if the resource direction is not changed.
  • the UE may perform or omit measurements according to the SFI if the SFI is available prior to k0 from the measurement resource n.
  • the UE may also omit DL reception if SFI is available prior to k0 from resource n for DL reception.
  • Dynamic scheduling can always be prioritized over semi-static measurement configurations and can be canceled or activated. The first chance of a Type 2 resource may follow UE specific dynamic resource / scheduling.
  • BWP changes may occur in association with SFI.
  • the valid time at which the BWP change occurs may be the time at which the scheduling is validated.
  • the same symbol information obtained from the SFI may be applied. However, the processing time of the SFI needs to be considered.
  • the SFI must be available before the required processing time.
  • the required processing time may be configured by the network.
  • the delay for processing time needs to be clearly defined.
  • the delay can be measured in time between time t and time n0.
  • the point in time t is the time when the UE finishes decoding the SFI and is expected to become available.
  • T can be determined as n0 (reception timing of SFI) + k3.
  • k3 may be the minimum time between search spaces for monitoring the same DCI format in the same QCL relationship. Alternatively, k3 may be determined by the UE capability to process the group common PDCCH / DCI and / or the UE capability to process other PDCCHs.
  • the time n0 is the time when the UE receives the SFI and the SFI becomes available.
  • the timing can be determined when the scheduling DCI is received, and if the SFI is available, the scheduling DCI can be canceled.
  • the semi-statically configured timing may be different from the UE processing time. That is, for CSI, the SFI must be available at least on the reference RS.
  • the UE basic timing can be considered as the processing time. That is, the basic timing used in the initial connection may be used to determine the processing time instead of the UE capability. Accordingly, all the UEs can apply the same timing.
  • the group common PDCCH / DCI can be repeatedly transmitted at the overlapping part.
  • slot n may point from slot n to slot n + k
  • slot n + k / 2 may point from slot n + k / 2 to slot n + k + k / 2.
  • the starting point may be the current slot in which the group common PDCCH / DCI is received, and the application of the SFI may be different depending on the number of the indicated slots.
  • groups of CORESET and / or search space in which the group common PDCCH / DCI is monitored can be configured differently.
  • the UE may configure different RNTIs and indexes for each BWP to monitor the group common PDCCH / DCI.
  • the monitoring period of the group common PDCCH / DCI may be configured individually for each BWP and / or combined for each UE based on a reference newmanager location.
  • the baseline novellogic may be any of the newest of the SS / PBCH block and / or the newest of the RMSI and / or the group common PDCCH / DCI. Accordingly, starting from SFN (system frame number) 0, the UE can monitor the group common PDCCH / DCI regardless of the BWP change.
  • the monitoring period of the group common PDCCH / DCI can be configured based on the new common domain of the group common PDCCH / DCI, and the same or different periods can be configured for each BWP.
  • the monitoring period of the group common PDCCH / DCI can be configured for each EU and can be applied based on the new common domain of the group common PDCCH / DCI. If the network wants to use a different group common PDCCH / DCI monitoring period for each BRP, a separate configuration may also be considered. Also, the monitoring period can be applied to a puncturing indication (PI).
  • PI puncturing indication
  • the UE can be configured to have a monitoring cycle that can define different absolute times according to the neurological logies used.
  • the monitoring period can be determined based on the new common domain of the group common PDCCH / DCI.
  • different SFI tables may be configured for each new locale while maintaining the same monitoring period. That is, a different number of slots may be included in each new logistics within one monitoring period.
  • the SFI transmitted through the group common PDCCH / DCI can be applied to a plurality of slots and / or a time interval corresponding to a plurality of slots based on a neural logy used for transmission.
  • the UE may receive duplicate information.
  • Separate CORESETs can be organized per BWP, with a collection of search spaces that can potentially have different monitoring periods and / or offsets.
  • SFIs received from previous BWPs may be valid in modified BWPs.
  • the SFI may be applied differently based on the modified BWP's new-weather location.
  • SFIs received from previous BWPs can be ignored in modified BWPs. That is, the group common PDCCH / DCI may be deemed to be unconfigured, or that an error has not occurred since the SFI is not received.
  • a first slot (slot index 0) of an SFI based on a New Romer X can indicate a first slot based on a New Romer Y, and a SFI based on Newaround X
  • the slot k-1 may not be used.
  • Such an entry may be set to a default value such as " not applicable ". For example, if a SUL carrier with a 15 kHz subcarrier spacing is indicated with an unpaired carrier using a subcarrier spacing of 30 kHz, an entry of " not applicable " for the SUL carrier may be used every 2 slots.
  • the number of slots may be different for different neighbors, n / k slots may be indicated for new logistic Y, and n slots may be indicated for new logarithm X.
  • Appropriate SFI entries may be selected in the table, and the plurality of tables may have different periods. To support this, the same index in the SFI table can be interpreted differently for each new logistic.
  • the UE may configure a separate SFI entry for each new locale. For the same SFI entry, the number of slots indicated may be different depending on the neuromargraphy. Starting from the slot through which the group common PDCCH / DCI is transmitted, a different number of slots can be indicated.
  • SFI of Newman Lodge Y can be based on Newman Rogue X.
  • the k DL symbols in the new log X can be converted into the DL symbols in the new logarithmic Y.
  • UL symbols or floating symbols If k symbols in the normal logic X include DL symbols and floating symbols, they can be transformed into a DL symbol or a floating symbol at the neural logy Y. [ UL symbols or floating symbols may be similarly processed.
  • k symbols in a new log X include DL symbols and UL symbols, they can be converted to floating symbols in the logarithm Y, or an error can be considered to have occurred.
  • the SFI for the k symbols in the New Romer X can be applied to one symbol in the New Romer Y. If k symbols in the new log X include DL symbols or UL symbols, one symbol in the new logarithium Y may be considered a DL symbol or a UL symbol. Or, if k symbols in the log X include a floating symbol, one symbol in the logarithmic Y may be considered a floating symbol. If k symbols in the New Zealand X include DL symbols and UL symbols, this may be considered an invalid SFI entry.
  • SFIs that are not supported in the configured SFI entries of the SFI format may thus occur. That is, the transformed SFI entry applied to the new logic Y may not be in the SFI table. For example, if the SFI indicates "DDDDDDDDXXXXXU ... U" for the new log X, then the SFI for the new logy Y may point to "DDDDDXXU ... U" It may or may not be supported by the table. In other words, the SFI interpreted at Newaround Y may not be in the SFI, which may be regarded as an error.
  • the SFI table may include all of the mappings of the SFIs interpreted at the new locality Y to cover the transformed SFI. For example, an SFI that includes two transition points at a subcarrier spacing of 30 kHz may correspond to an SFI that includes four transition points at a subcarrier spacing of 15 kHz. These SFIs may not be supported or may be supported by SFI tables.
  • the above mechanism may not be used for a particular SFI (e.g., including two transition points).
  • SFI For such SFI, Option 1 or Option 2 described above may be applied.
  • a separate SFI table can be constructed for each new locale.
  • the SFI of a carrier based on neumarlogy Y may be indicated by the same index as another carrier and / or SFI based on the New Romer X.
  • it can be interpreted differently by constructing a separate SFI set (SFI and the number of slots) for each entry between the new log X and the Y.
  • SFI SFI and the number of slots
  • DL and UL use different neighbors in the paired spectrum, for example, two slots of new log X and one slot of new log Y can be constructed.
  • a similar approach can be applied for SUL carriers. That is, when different neighbors are used in the fair spectrum and SUL carrier, each entry may be composed of k slots of new log X and one slot of new log Y for each SFI.
  • the slot format can be determined based on the Newer Lodge Y. This is similar to the way in which a separate SFI table is constructed for each new logistic in Option 4. Alternatively, a separate entry may be used for each new locale, and each entry may indicate a different number of slots depending on the new locale.
  • Option 2 The number of slots may be different for different neighbors, n / k slots may be indicated for new logistic Y, and n slots may be indicated for new logarithm X. Appropriate SFI entries may be selected in the table, and the plurality of tables may have different periods.
  • SFI of Newman Lodge Y can be based on Newman Rogue X.
  • the DL symbol in the new log X can be converted into the k DL symbols in the new logarithmic Y.
  • UL symbols or floating symbols the same is true for UL symbols or floating symbols.
  • the SFI for one symbol in the New Romer X can be applied to k symbols in the Newer Lodge Y.
  • SFIs that are not supported in the configured SFI entries of the SFI format may thus occur. That is, the transformed SFI entry applied to the new logic Y may not be in the SFI table.
  • the SFI for Newaround Y can indicate "DDDDDDDDDDDDDDDDDDDDDXXXXXXXXX". If the transformed SFI is not in the SFI table, it can be considered that an error has occurred.
  • the SFI table may include all of the mappings of the SFIs interpreted at the new locality Y to cover the transformed SFI.
  • a special mapping between the neuronal logos X and Y can be constructed.
  • another SFI may be applied to the new log Y. For example, if " DDXXXXU " is indicated by a neurological X, then it can be mapped to an SFI with two transition points in Newman Lodge Y.
  • a separate SFI table can be constructed for each new locale.
  • the SFI of a carrier based on neumarlogy Y may be indicated by the same index as another carrier and / or SFI based on the New Romer X.
  • it can be interpreted differently by constructing a separate SFI set (SFI and the number of slots) for each entry between the new log X and the Y.
  • SFI SFI and the number of slots
  • DL and UL use a different new logarithm in the paired spectrum, for example, one slot of Newaround X and two slots of Newaround Y can be constructed.
  • a similar approach can be applied for SUL carriers. That is, when different neighbors are used in the fair spectral and SUL carriers, each entry may be composed of one slot of the new log X and one slot of the new log Y, for each SFI.
  • the slot format can be determined based on the Newer Lodge Y. This is similar to the way in which a separate SFI table is constructed for each new logistic in Option 4. Alternatively, a separate entry may be used for each new locale, and each entry may indicate a different number of slots depending on the new locale.
  • the network must be able to ensure consistency between the newlogue of the pre-change BWP and the newlogue of the post-change BWP. If the information is different, an error can be considered to have occurred.
  • the UE may omit the SFI and process the resource as if the SFI was not received.
  • a separate SFI may be indicated for the DL carrier and the UL carrier. That is, in the fair spectrum, the SFI can be transmitted for each of the DL carrier and the UL carrier. If the DL carrier is associated with two UL carriers or a plurality of DL carriers are associated with one UL carrier, the SFI needs to be clearly defined. Hereinafter, the following may be considered.
  • the DL bandwidth and UL bandwidth to which SFI applies can be configured.
  • the UE may be configured with a BWP that belongs to a configured bandwidth to which the SFI can be applied.
  • the SFI may be applied to that carrier. If only the DL bandwidth is configured for the UE (i.e., the carrier / UL resource only present in the unloaded spectrum is not used), the UL resource may be treated as a flow resource.
  • the DL bandwidth and UL bandwidth to which SFI applies can be configured.
  • the UE may be configured with a BWP that belongs to a configured bandwidth to which the SFI can be applied.
  • - SFI can be applied to DL and UL based on the duplex gap in the band.
  • a separate SFI for the DL and UL spectra can be constructed.
  • only the SFI for the DL carrier can be configured.
  • each SFI may include SFI for the DL spectrum and SFI for the UL spectrum. That is, the size of the payload of the SFI may be twice the number of slot formats for the DL spectrum and the UL spectrum.
  • the SFI table may include both the DL spectrum and the SFI of the UL spectrum.
  • the unperformed NR carrier is associated with an FDD SUL carrier, then the following can be considered:
  • the SFI can only indicate the DL spectrum of the unpacked NR carrier.
  • Each SFI for the unperformed NR carrier and the FDD SUL carrier can be transmitted in the same DL spectrum by the SFI cross carrier indication.
  • One SFI can simultaneously indicate unloaded NR carrier and FDD SUL carrier.
  • the SFI for the unperformed NR carrier and the SFI (e.g. UL symbol or floating symbol) for the FDD SUL carrier may be combined and indicated on a slot-by-slot basis.
  • the UE needs to know by configuration whether the SFI includes the SFI for the FDD SUL carrier. Basically, the UE can expect the SFI for the unloaded NR carrier to be broadcast, and if selectively configured, the SFI for the FDD SUL carrier can be delivered.
  • the slot format on the TDD SUL carrier can be complicated.
  • the slot format including the DL / UL / floating symbols can be reused, and one SFI can include both the SFI for the fair / unloaded NR carrier and the SFI for the TDD SUL carrier.
  • a separate SFI may be configured for a paired / unloaded NR carrier and a TDD SUL carrier.
  • the SFI for the TDD SUL carrier can be transmitted in the DL spectrum of the fair / unperformed NR carrier, such as the SFI scheduled by the cross-carrier.
  • SFI for a TDD SUL carrier only UL symbols or floating symbols can be used and can be configured as resources available to the UE. Since the UE will not connect to the DL carrier associated with the TDD SUL carrier, the SFI for that DL carrier need not be known.
  • the SUL carrier can be treated as a separate carrier as in the case of the fair spectrum in terms of SFI transmission and / or other group common transmission, and can be handled as if there is a cross carrier indication in the SUL transmission.
  • the carrier associated with the SUL carrier can carry the SFI of both carriers, such as a single SFI entry.
  • a different set of SFIs may be indicated.
  • the SFI indicating the DL / UL / floating symbol for the NR carrier and the SFI indicating the UL / floating symbol for the SUL carrier may be transmitted over the carrier associated with the SUL carrier.
  • the UE does not need to monitor the SFI. If the UE has configured CORESET for the group common PDCCH / DCI in the basic BWP, the UE may monitor the group common PDCCH / DCI during on-duration of the DRX. Otherwise, the UE does not need to monitor the group common PDCCH / DCI in the basic BWP.
  • the condition for the UE to return to the default BWP may be any of the following:
  • Option 2 If the UE does not receive the DCI scheduling unicast DL / UL and there is no active DL / UL SPS (since the base BWP may have a limited bandwidth to receive the grant, To ensure a larger BWP)
  • Option 3 If the UE does not receive a DCI scheduling unicast DL / UL
  • the UE may assume that the group common PDCCH / DCI is not configured.
  • Multislot (or Multiminial Slot) Scheduling and Group Common PDCCH / DCI
  • a slot or a multislot may be replaced by a minislot or a multimini slot.
  • start and end points of a slot where repetition can occur can be determined by the start resource and the iteration.
  • Start resources can be dictated by the DCI. Hence, if any repetition is omitted in the middle of a plurality of slots, the number of repetitions can be reduced.
  • iterative transmissions in a multislot are sufficient to correspond to the resources allocated for the multi-slot transmission 0.0 > UL < / RTI > symbol or a floating symbol.
  • iterative transmission in a multi-slot may be transmitted only in the UL symbol except for the floating symbols.
  • iterative transmissions in a multislot may be transmitted in slots containing sufficient UL symbols corresponding to resources allocated for multi-slot transmission.
  • iterative transmissions in a multislot may be transmitted on a group common PDCCH / DCI basis, unless the resources are designated as DL symbols (or floating symbols) by a semi-static DL / UL slot format configuration and canceled.
  • iterative transmissions in a multislot can be transmitted in slots containing sufficient UL symbols corresponding to resources allocated for multi-slot transmission.
  • iterative transmissions in multi-slots may be transmitted based on the group common PDCCH / DCI.
  • iterative transmissions in a multislot can be transmitted in any slot.
  • the multislot PUCCH will start at the start symbol indicated by the PUCCH resource allocation, 0.0 > UL < / RTI > symbol and / or a floating symbol. If the group common PDCCH / DCI is configured, the multislot PUCCH may be transmitted in a slot starting from the start symbol indicated by the PUCCH resource allocation and containing N or more UL symbols. Otherwise, the multislot PUCCH may be transmitted in any slot according to scheduling.
  • Option 2 For both dynamic SFI and semi-static DL / UL slot format configurations, the absolute number of slots may be considered, regardless of whether transmission is omitted.
  • Option 3 For both dynamic SFI and semi-static DL / UL slot format configurations, the number of slots in which transmissions actually take place can be considered.
  • Option 4 described above can be described as follows. That is, repetition is delayed in slots that can not be transmitted by semi-static configuration (for example, in the presence of a DL symbol), while repetition may be omitted in slots that can not be transmitted by dynamic SFI.
  • Rate matching can be treated as if it is a semantic operation, and rate matching resources can also be handled like an anti-static slot format configuration.
  • rate matching resources For rate matching resources to be dynamically indicated, rate matching may be omitted or performed. That is, if the rate matching resource is composed of UL resources, the repetition may be omitted if there is insufficient resources due to rate matching. If the rate matching resource is composed of UL resources, rate matching can be performed.
  • the UE For multi-slot PUCCH scheduling, for a PUCCH, if the length of the PUCCH is K and the start symbol of each slot is i, then the UE allocates UL symbols and / or floating symbols between the i < th > It is possible to perform PUCCH transmission in the corresponding slot.
  • multi-slot PUSCH scheduling For multi-slot PUSCH scheduling, the following may be considered. The following can be similarly applied to multi-slot PUCCH scheduling.
  • Option 1 A scheme similar to the above-described multi-slot PUSCH scheduling can be applied.
  • the PUSCH may be transmitted in slots with a smaller number of consecutive UL symbols and / or floating symbols than K if the DM-RS can be transmitted. That is, the PUSCH transmission interval may be shorter than K.
  • the PUSCH may be transmitted in a slot if the DM-RS can be transmitted in UL symbols and / or floating symbols. That is, the PUSCH transmission interval may be equal to K.
  • the last one or two symbols may be punctured or rate matched. This can be supported by semi-static rate matching resource configuration and / or semi-static slot format configuration and / or dynamic SFI.
  • Time domain resource allocation in single slot, multislot, single minislot, and / or multimini slot considering rate matching resources and / or semi-static slot format configuration and / or dynamic SFI
  • time-domain scheduling information can be applied differently in DL and UL. Also, depending on where the time-domain scheduling information is scheduled (e.g., MSG3 or other unicast transmission), the time-domain scheduling information applied by the UE may be different. That is, other applications of time domain scheduling information may be required depending on the message.
  • resources may be classified into fixed DL symbols and fixed UL symbols indicated by a cell specific slot format configuration and / or a UE specific slot format configuration.
  • UE unidentified messages e.g., broadcast messages such as RMSI or MSG3
  • the UE specific slot format configuration may not be available.
  • the resource can be designated as a floating symbol. If the floating symbols are indicated by DL symbols or UL symbols by the SFIs transmitted via the group common PDCCH / DCI, then they become fixed DL symbols and fixed UL symbols. Floating symbols not known by SFI can be considered reserved resources.
  • rate matching resources by semi-static rate matching resource configuration can be considered reserved resources.
  • the rate matching resource by dynamic indication may be regarded as a reserved resource only for data scheduled by the same DCI dynamically indicating rate matching resources.
  • a set of resources for which a UE should transmit a transport block (TB) may be defined as a transmission opportunity.
  • the transmission opportunity may be defined as the duration of the start symbol and slot.
  • a minislot it can be defined as a period of a start symbol and a minislot, depending on how the minislot scheduling interval / time-domain resource is allocated.
  • counting can be applied to the window of control channel monitoring such as RMSI / OSI (other SI) / RAR (random access response).
  • the counting can also be applied to determine / derive resources at dynamically and / or semi-statically configured offsets between the control signal and the data and / or between the data and the UCI and / or between the grant and the operation.
  • the first transmission opportunity dictated by the DCI can always be considered valid regardless of the SFI.
  • the same restrictions may be applied to repeatedly semi-static configured resources so that the first transmission opportunity is always transmitted.
  • a semi-statically configured resource may be considered the remaining transmission opportunity.
  • the DCI can be applied only to the first transmission opportunity, and the remaining transmission opportunity can be handled differently.
  • the DCI can be applied to all resources.
  • at least the first transmission opportunity must be protected. That is, in the case of Type 1 or Type 2, the first transmission opportunity for every period P can always be regarded as a valid resource regardless of the SFI, unless indicated by a DL symbol by a half-static slot format configuration.
  • time domain resource allocation in single slot, multislot, single minislot, and / or multi-minislot considering rate matching resource and / or semi-static slot format configuration and / or dynamic SFI will be described.
  • the transmission opportunity may be considered valid. At this time, the following can be considered.
  • the resource may contain consecutive K UL symbols or floating symbols for UL transmission.
  • the resource may comprise consecutive K DL symbols or floating symbols for DL transmission.
  • the resource may contain consecutive K1 UL symbols or floating symbols for UL transmission.
  • the resource may comprise consecutive K1 DL symbols or floating symbols for DL transmission.
  • the resource in the UL is a UL symbol and / or a floating symbol, or the DM-RS resource in the DL is a DL symbol and / or a floating symbol, then the resource may be considered as a valid resource.
  • the resource can always be considered a valid resource.
  • the first transmission opportunity indicated by the DCI for every period P, or the first transmission opportunity of a Type 1 or Type 2 resource of a grantless resource allocation per period P can always be considered a valid resource
  • the transmission opportunity may be considered invalid.
  • Counting can only be performed on valid transmission opportunities.
  • the counting can be performed on all transmission opportunities regardless of whether or not the transmission opportunity is valid.
  • counting can be performed only on valid transmission opportunities that can be determined based only on semi-static slot format configuration and / or semi-static rate matching resource configuration. That is, counting may be omitted for invalid transmission opportunities induced by the semi-static slot format configuration.
  • the RV sequence can only be mapped to a valid transmission opportunity.
  • the RV sequence can be mapped at any transmission opportunity regardless of whether or not the transmission opportunity is valid.
  • RV sequence can only be mapped to the counted resources.
  • the RV sequence can be mapped as if it were sent from the initial transmission opportunity to reduce ambiguity if the transmission originates from a transmission opportunity rather than the original transmission opportunity.
  • iterative transmissions may be configured for grantless resource and / or grant based transmission. Due to resources that are not valid, it may be difficult to ensure that the UE can transmit a configured number of iterations in certain cases.
  • the UE may defer transmission if it is dynamically indicated / configured or semi-statically configured. This is similar to counting only the transmission opportunity in which the transmission was actually made. That is, the UE may be configured with a different counting mechanism depending on the situation. In the case of a resource without grant, it can be configured semi-statically.
  • the deferral of the transmission can be allowed only within a period for a type 1/2 type of resource configuration.
  • the first transmission opportunity that the UE can transmit (if it can transmit in any transmission opportunity within the period P) may not be valid.
  • any RV sequence determined based on resources or based on counting may be used, and the UE may initiate the transmission at any time.
  • the number of iterative repetitions can be configured to be twice the actual expected number of iterations the UE can start transmitting, as long as the transmission can exceed the expected number of iterations.
  • this may limit the available HARQ processes.
  • the UE may start transmission anywhere, regardless of the RV sequence. If the UE operation for dynamic SFI processing is determined to be a delay of transmission, the UE may initiate transmission only at the first transmission opportunity.
  • hopping between slots and / or hopping between minislots can only be performed at the counted transmission opportunity.
  • hopping between slots and / or hopping between minislots can be performed on all transmission opportunities regardless of actual transmission. Accordingly, inter-slot hopping and / or minislot inter-hopping may be performed little or may not be performed at all in some cases.
  • inter-slot hopping and / or minislot inter-hopping can be performed only at the transmission opportunity where the actual valid transmission is made. In this case, ambiguity may occur between the network and the UE if the network and the UE determine differently for valid resources.
  • In-slot hopping can be performed based on the actual transmission time, at a valid transmission opportunity that can have a duration different from the duration indicated by the DCI or semi-static configuration.
  • intra-slot hopping can always be performed based on the duration indicated by the DCI or semi-static configuration.
  • Candidate Transmission Opportunity may be valid or invalid by the above-mentioned "(1) UE operation".
  • the transmission opportunity starts at the slot derived from the period and offset for the Nth period, and the first transmission opportunity in that slot can be determined by time domain resource allocation. For example, if the period is 2 slots and the offset is 1, resource allocation may be applied for every odd slot to determine the transmission opportunity.
  • the remaining transmission opportunities can be determined as follows. First, if the time domain resource is for non-slot based scheduling (similar to DL, other directives to distinguish between DM-RS type or both need to be indicated in the time domain resource entry) - slot can be divided, where M is floor (14 / U) and U is the value closest to the size of the non-slot scheduling (equal to or greater than the duration) in the duration of the indicated resource. For example, if the resource duration is 1 symbol, U becomes 2 symbols, and if the resource duration is 5 symbols, U becomes 7 symbols. If the resource duration is 4 symbols, non-slots may be composed of slots 0 to 11 and / or slots 2 to 14 depending on the configuration.
  • the same resource allocation may be applied for each non-slot unit and may be applied within the start symbol non-slot unit of the indicated time domain resource. For example, if there are two non-slot units in the slot with 7 symbols and the start symbol is indicated as 2 with a resource duration of 5 symbols, then symbol 2 and symbol 9 in each non- Lt; / RTI > start symbol. Alternatively, in the case of slot-based scheduling, the same start and duration may be applied to each slot through the repeated slots.
  • the same scheme as Option 1 may be applied.
  • the time domain resource allocation may include one or more non-contiguous resource allocation of non-slotted scheduling.
  • the time-domain resource allocation may be '00111110011111'. However, this may not be represented by continuous time domain resource allocation and can not represent successive iterations of non-slot scheduling.
  • repetition can only occur over multiple slots. That is, the iteration may be variable only if the period is greater than the slot. If the period is less than the number of repetition times of 1, a scheme similar to non-slot scheduling in Option 1 described above may be applied so as to have a plurality of transmission opportunities for a duration. At this time, the non-slot scheduling unit may be determined by a period rather than by a time domain resource allocation.
  • the size of the non-slot scheduling unit and / or the pattern of the non-slot scheduling unit may be indicated. For example, even if the duration is one symbol, the size of the non-slot scheduling unit may be composed of seven symbols instead of two symbols, and there may be two transmission opportunities in the slot. It can be configured separately for Type 1 or Type 2 configurations.
  • Transmission occurs only on valid resources, and reception can occur on a counted resource.
  • Transmission occurs on a counted resource, and reception can also occur on a counted resource.
  • Table 4 summarizes various processes to ensure flexibility and / or reliability while minimizing ambiguity between the UE and the network.
  • Option 2 of "Counting for (2) iteration” can be used for counting for the monitoring window.
  • the RV sequence may only occur on the counted resource.
  • RAR CORESET / PDSCH - Similar processing to OSI CORESET / PDSCH - However, if the UE can have multiple ULs in one RAR window and the RAR reception performance can be degraded, then based on the semi-static slot format configuration if available, Option 1 of " counting " can be used.
  • the starting position of the RAR window may be determined according to Option 2 of " Counting for (2) iteration ", or the starting position of the RAR window may be determined according to Option 1 of "
  • the RAR window can be used with option 1 of "(2) Counting for iteration” - or according to option 2 of "Counting for (2) iterations” according to the appropriate configuration for both the starting positions of the RAR and RAR windows - Option 2 of "(2) Counting for iteration” can provide more flexibility, since RAR may not be present for all beams.
  • the first resource in option 1 of "(2) Counting for iteration” may not be valid.
  • MSG3 transmit / receive - Timing K2 from UL grant to PUSCH can be determined according to option 2 of " (2) Counting for repetition ". That is, the absolute number of slots in slot-based scheduling can be counted and the absolute number of transmission opportunities in minislot-based scheduling can be counted. Actual transmission or repetition can be counted by option 3 of "(2) Or option 2 based on the above.
  • Note 1 In case of UE group common transmission and / or cell specific transmission and / or if UE is not identified or is not a C-RNTI based transmission, group common PDCCH / DCI is not configured and UE specific slot format configuration is available It can be regarded as not. If the cell specific slot format configuration is passed through the OSI, the cell specific slot format configuration may be considered not available until the OSI transmission.
  • the same handling is required whether the UE is in CONNECTEC mode or IDLE mode. Thus, the same handling can be applied regardless of when the UE receives a particular channel (i.e. whether it is in IDLE mode or CONNECTED mode), or other actions may be applied depending on which BWP is read have.
  • the channels of the initial BWP follow the same handling, while the channels of the BWP other than the initial BWP may be handled differently.
  • the OSI transmits a cell specific slot format configuration
  • the fixed UL symbols in the counting and / or repetition may be omitted for the RMSI CORESET / PDSCH in the BWP rather than in the initial BWP.
  • This behavior may vary from one BWP to another. That is, when determining a valid resource, the information applied in each BWP may be different. For the initial DL / UL BWP, the same information as the initial access procedure can be applied.
  • the UE may receive cell specific slot format configurations via OSI as well as UE specific slot format configurations.
  • OSI what information is available for determining the validity of the transmission opportunity can be determined for each channel listed in Table 4, regardless of the BWP the channel is being transmitted to.
  • the UE may not consider UE specific slot format configuration and / or group common PDCCH / DCI when determining a valid transmission opportunity. That is, only the cell specific slot format configuration can be considered.
  • the UE can use the initial DL / UL BWP for transmission until the UE is reconfigured to another BWP.
  • the effective transmission opportunity is preferably determined based only on the cell specific slot format configuration.
  • the UE may also apply the UE specific slot format configuration. However, this may lead to ambiguity in the RRC (re) configuration stage. Therefore, it is desirable that only the cell specific slot format configuration is applied to the initial DL / UL BWP regardless of the UE specific slot format configuration or the availability of other information such as group common PDCCH / DCI.
  • the same method can be applied to the basic BWP, and the basic BWP can be used for the reconstruction.
  • control signals / data configured in the CSS regardless of the BWP, only the cell specific slot format configuration can be commonly applied to all UEs. That is, UE specific slot format configuration or group common PDCCH / DCI is not considered. This may be particularly necessary for MSG3 transmission.
  • a usable cell is selected for the control signal / data (e.g., RMSI PDSCH, OSI PDSCH, RAR PDSCH, MSG3, MSG4, Only certain slot format configurations can be used to determine the conflicting resources.
  • Figure 9 illustrates how a UE operates in accordance with one embodiment of the present invention.
  • the present invention described above on the UE side can be applied to this embodiment.
  • step S900 the UE receives a first SFI for the unloaded carrier from the network.
  • step S910 the UE configures a first slot on the unloaded carrier based on the first SFI.
  • step S920 the UE receives a second SFI for the SUL carrier from the network.
  • step S930 the UE configures a second slot on the SUL carrier based on the second SFI.
  • the first SFI and the second SFI are separate information.
  • the first SFI and the second SFI may be received through the same DL spectrum.
  • the same DL spectrum may be a DL spectrum of the unpacked carrier.
  • the DL spectrum of the unloaded carrier may be associated with the SUL carrier.
  • the SUL carrier can use FDD.
  • the SFI applied to the unperformed NR carrier and the SFI applied to the FDD SUL carrier can be configured separately .
  • the slot format can be effectively configured in each carrier wave.
  • FIG. 10 shows a UE in which an embodiment of the present invention is implemented.
  • the present invention described above on the UE side can be applied to this embodiment.
  • the UE 1000 includes a processor 1010, a memory 1020, and a transceiver 1030.
  • Processor 1010 may be configured to implement the functions, processes, and / or methods described herein.
  • a layer of air interface protocol may be implemented within the processor 1010. More specifically, the processor 1010 controls the transceiver 1030 to receive a first SFI for an unloaded carrier from the network, constructs a first slot in the unpacked carrier based on the first SFI, Controls the transceiver 1030 to receive a second SFI for a SUL carrier from the network, and configures a second slot on the SUL carrier based on the second SFI.
  • the first SFI and the second SFI are separate information.
  • the first SFI and the second SFI may be received through the same DL spectrum.
  • the same DL spectrum may be a DL spectrum of the unpacked carrier.
  • the DL spectrum of the unloaded carrier may be associated with the SUL carrier.
  • the SUL carrier can use FDD.
  • the memory 1020 is coupled to the processor 1010 and stores various information for driving the processor 1010.
  • Transceiver 1030 is coupled to processor 1010 to transmit and / or receive wireless signals.
  • Processor 1010 may include an application-specific integrated circuit (ASIC), other chipset, logic circuitry, and / or data processing device.
  • Memory 1020 may include read-only memory (ROM), random access memory (RAM), flash memory, memory cards, storage media, and / or other storage devices.
  • the transceiver unit 1030 may include a baseband circuit for processing a radio frequency signal.
  • the module may be stored in memory 1020 and executed by processor 1010.
  • the memory 1020 can be internal or external to the processor 1010 and can be coupled to the processor 1010 in a variety of well known ways.
  • the SFI applied to the unloaded NR carrier and the SFI applied to the FDD SUL carrier can be configured separately .
  • the slot format can be effectively configured in each carrier wave.
  • Figure 11 illustrates how a BS operates in accordance with an embodiment of the present invention.
  • the present invention described above on the BS side can be applied to this embodiment.
  • step S1100 the BS transmits a first SFI for the unassigned carrier to the UE.
  • step S910 the BS transmits a second SFI for the SUL carrier to the UE.
  • the first SFI and the second SFI are separate information.
  • the first SFI and the second SFI may be received through the same DL spectrum.
  • the same DL spectrum may be a DL spectrum of the unpacked carrier.
  • the DL spectrum of the unloaded carrier may be associated with the SUL carrier.
  • the SUL carrier can use FDD.
  • the SFI applied to the unperformed NR carrier and the SFI applied to the FDD SUL carrier can be configured separately .
  • FIG. 12 shows a BS in which an embodiment of the present invention is implemented.
  • the present invention described above on the BS side can be applied to this embodiment.
  • BS 1200 includes a processor 1210, a memory 1220, and a transceiver 1230.
  • Processor 1210 may be configured to implement the functions, processes, and / or methods described herein.
  • a layer of air interface protocol may be implemented within the processor 1210. More specifically, the processor 1210 controls the transceiver 1230 to transmit the first SFI for the unloaded carrier to the UE, and controls the transceiver 1230 to transmit the second SFI for the SUL carrier to the UE .
  • the first SFI and the second SFI are separate information.
  • the first SFI and the second SFI may be received through the same DL spectrum.
  • the same DL spectrum may be a DL spectrum of the unpacked carrier.
  • the DL spectrum of the unloaded carrier may be associated with the SUL carrier.
  • the SUL carrier can use FDD.
  • the memory 1220 is coupled to the processor 1210 to store various information for driving the processor 1210.
  • Transceiver 1230 is coupled to processor 1210 to transmit and / or receive wireless signals.
  • Processor 1210 may comprise an ASIC, another chipset, logic circuitry and / or a data processing device.
  • Memory 1220 can include ROM, RAM, flash memory, memory cards, storage media, and / or other storage devices.
  • the transceiver 1230 may include a baseband circuit for processing a radio frequency signal.
  • the module may be stored in memory 1220 and executed by processor 1210.
  • the memory 1220 can be internal or external to the processor 1210 and can be coupled to the processor 1210 in a variety of well known ways.
  • the SFI applied to the unperformed NR carrier and the SFI applied to the FDD SUL carrier can be configured separately .

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

Abstract

L'invention concerne un procédé et un dispositif de configuration d'une indication de formation d'intervalle (SFI) dans un système de communication sans fil, en particulier une technologie d'accès New Radio (NR). Un équipement d'utilisateur (UE) : reçoit, d'un réseau, une première SFI pour une porteuse non appairée ; configure un premier intervalle dans la porteuse non appairée, sur la base de la première SFI ; reçoit, du réseau, une seconde SFI pour une porteuse de liaison montante supplémentaire (SUL) ; et configure un second intervalle dans la porteuse SUL, sur la base de la seconde SFI. La première SFI et la seconde SFI sont des éléments d'informations séparés.
PCT/KR2018/012816 2017-10-26 2018-10-26 Procédé et dispositif de commande selon des dci communes de groupe dans un système de communication mobile WO2019083317A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2020523440A JP6918232B2 (ja) 2017-10-26 2018-10-26 無線通信システムにおけるグループ共通のｄｃｉに従って動作する方法及び装置
CN201880069043.1A CN111279777B (zh) 2017-10-26 2018-10-26 在无线通信系统中根据组公共dci进行操作的方法和装置
EP22202172.7A EP4145754B1 (fr) 2017-10-26 2018-10-26 Procédé et équipement utilisateur destinés à être utilisés dans un système de communication sans fil
EP18871281.4A EP3700273B1 (fr) 2017-10-26 2018-10-26 Procédé et équipement utilisateur destinés à être utilisés dans un système de communication sans fil
US16/857,095 US11039438B2 (en) 2017-10-26 2020-04-23 Method and device for operating according to group common DCI in wireless communication system

Applications Claiming Priority (10)

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US201762577692P 2017-10-26 2017-10-26
US62/577,692 2017-10-26
US201762593992P 2017-12-03 2017-12-03
US62/593,992 2017-12-03
US201762594479P 2017-12-04 2017-12-04
US62/594,479 2017-12-04
US201762595020P 2017-12-05 2017-12-05
US62/595,020 2017-12-05
KR10-2018-0128638 2018-10-26
KR1020180128638A KR102033127B1 (ko) 2017-10-26 2018-10-26 무선 통신 시스템에서 그룹 공통 dci에 따라 동작하는 방법 및 장치

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WO2021169025A1 (fr) * 2020-02-26 2021-09-02 Oppo广东移动通信有限公司 Procédé de réception de format de dci, et procédé et appareil de réception de canal de liaison descendante préconfiguré
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Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN113812108A (zh) * 2019-05-16 2021-12-17 华为技术有限公司 一种时分双工通信方法和装置
CN110677887A (zh) * 2019-10-14 2020-01-10 中兴通讯股份有限公司 切换方法、切换指示方法、装置、终端、服务节点及介质
CN110677887B (zh) * 2019-10-14 2024-02-09 中兴通讯股份有限公司 切换方法、切换指示方法、装置、终端、服务节点及介质
WO2021169025A1 (fr) * 2020-02-26 2021-09-02 Oppo广东移动通信有限公司 Procédé de réception de format de dci, et procédé et appareil de réception de canal de liaison descendante préconfiguré
CN115276909A (zh) * 2020-02-26 2022-11-01 Oppo广东移动通信有限公司 Dci格式的接收方法及预配置下行信道的接收方法、装置
CN115276909B (zh) * 2020-02-26 2024-01-30 Oppo广东移动通信有限公司 Dci格式的接收方法及预配置下行信道的接收方法、装置

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