WO2023055194A1 - 무선 통신 시스템에서 대역폭 부분 활성화 또는 비활성화 방법 및 장치 - Google Patents
무선 통신 시스템에서 대역폭 부분 활성화 또는 비활성화 방법 및 장치 Download PDFInfo
- Publication number
- WO2023055194A1 WO2023055194A1 PCT/KR2022/014809 KR2022014809W WO2023055194A1 WO 2023055194 A1 WO2023055194 A1 WO 2023055194A1 KR 2022014809 W KR2022014809 W KR 2022014809W WO 2023055194 A1 WO2023055194 A1 WO 2023055194A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bwp
- group common
- rnti
- pdcch
- cfr
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0457—Variable allocation of band or rate
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1861—Physical mapping arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
- H04L5/0096—Indication of changes in allocation
- H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
- H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1896—ARQ related signaling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0093—Point-to-multipoint
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Definitions
- the present disclosure relates to a wireless communication system, and more particularly, to a method and apparatus for activating or deactivating a bandwidth portion (BWP) in a wireless communication system.
- BWP bandwidth portion
- Mobile communication systems have been developed to provide voice services while ensuring user activity.
- the mobile communication system has expanded its scope to data services as well as voice.
- the explosive increase in traffic causes a shortage of resources and users demand higher-speed services, so a more advanced mobile communication system is required. there is.
- next-generation mobile communication system The requirements of the next-generation mobile communication system are to support explosive data traffic, drastic increase in transmission rate per user, significantly increased number of connected devices, very low end-to-end latency, and high energy efficiency.
- Dual Connectivity Massive MIMO (Massive Multiple Input Multiple Output), In-band Full Duplex, Non-Orthogonal Multiple Access (NOMA), Super Wideband Wideband) support, various technologies such as device networking (Device Networking) are being studied.
- Massive MIMO Massive Multiple Input Multiple Output
- NOMA Non-Orthogonal Multiple Access
- Super Wideband Wideband various technologies such as device networking (Device Networking) are being studied.
- the technical problem of the present disclosure is to provide a method and apparatus for activating or deactivating a bandwidth part (BWP) in a wireless communication system.
- BWP bandwidth part
- An additional technical problem of the present disclosure is to provide a timer-based BWP activation or deactivation method and apparatus in a wireless communication system.
- An additional technical problem of the present disclosure is to provide a timer-based BWP activation or deactivation method and apparatus related to multicast or broadcast in a wireless communication system.
- a method for receiving a downlink channel by a terminal in a wireless communication system includes: a first bandwidth portion of a physical downlink control channel (PDCCH) based on a specific group-radio network temporary identifier (G-RNTI); receiving from the network at (BWP); and receiving a group common physical downlink shared channel (PDSCH) from the network based on the PDCCH, wherein the specific G-RNTI is set for first type group common scheduling or second type group common scheduling , and a first inactivity timer may be started or restarted based on the specific G-RNTI set for the first type group common scheduling.
- PDCCH physical downlink control channel
- G-RNTI group-radio network temporary identifier
- BWP group-radio network temporary identifier
- PDSCH group common physical downlink shared channel
- a method for transmitting a downlink channel by a base station in a wireless communication system includes: a first bandwidth portion of a physical downlink control channel (PDCCH) based on a specific group-radio network temporary identifier (G-RNTI); Transmitting from (BWP) to one or more terminals; and transmitting a group common physical downlink shared channel (PDSCH) to the one or more terminals based on the PDCCH, wherein the specific G-RNTI is set for a first type group common scheduling or a second type group It is set for common scheduling, and in one of the one or more terminals, a first inactivity timer is started or restarted based on the specific G-RNTI set for the first type group common scheduling.
- PDCCH physical downlink control channel
- G-RNTI group-radio network temporary identifier
- a method and apparatus for activating or deactivating a bandwidth part (BWP) in a wireless communication system may be provided.
- a method and apparatus for activating or deactivating a timer-based BWP in a wireless communication system may be provided.
- a timer-based BWP activation or deactivation method and apparatus related to multicast or broadcast in a wireless communication system may be provided.
- FIG. 1 illustrates the structure of a wireless communication system to which the present disclosure may be applied.
- FIG. 2 illustrates a frame structure in a wireless communication system to which the present disclosure can be applied.
- FIG 3 illustrates a resource grid in a wireless communication system to which the present disclosure may be applied.
- FIG. 4 illustrates a physical resource block in a wireless communication system to which the present disclosure may be applied.
- FIG. 5 illustrates a slot structure in a wireless communication system to which the present disclosure may be applied.
- FIG. 6 illustrates physical channels used in a wireless communication system to which the present disclosure can be applied and a general signal transmission/reception method using them.
- FIG. 7 is a diagram illustrating an example of a group common PDSCH to which the present disclosure can be applied and HARQ-ACK transmission therefor.
- FIG. 8 is a diagram for explaining an example of a method for receiving a downlink channel of a terminal according to the present disclosure.
- FIG. 9 is a diagram for explaining an example of a downlink channel transmission method of a base station according to the present disclosure.
- FIG. 10 is a diagram for explaining a signaling procedure of a network side and a terminal according to an embodiment of the present disclosure.
- FIG. 11 illustrates a block configuration diagram of a wireless communication device according to an embodiment of the present disclosure.
- first and second are used only for the purpose of distinguishing one component from another component and are not used to limit the components, unless otherwise specified. The order or importance among them is not limited. Accordingly, within the scope of the present disclosure, a first component in one embodiment may be referred to as a second component in another embodiment, and similarly, a second component in one embodiment may be referred to as a first component in another embodiment. can also be called
- the present disclosure describes a wireless communication network or wireless communication system, and operations performed in the wireless communication network control the network and transmit or receive signals in a device (for example, a base station) in charge of the wireless communication network. It can be done in the process of receiving (receive) or in the process of transmitting or receiving signals from a terminal coupled to the wireless network to or between terminals.
- a device for example, a base station
- transmitting or receiving a channel includes the meaning of transmitting or receiving information or a signal through a corresponding channel.
- transmitting a control channel means transmitting control information or a signal through the control channel.
- transmitting a data channel means transmitting data information or a signal through the data channel.
- downlink means communication from a base station to a terminal
- uplink means communication from a terminal to a base station.
- a transmitter may be part of a base station and a receiver may be part of a terminal.
- a transmitter may be a part of a terminal and a receiver may be a part of a base station.
- a base station may be expressed as a first communication device
- a terminal may be expressed as a second communication device.
- a base station includes a fixed station, a Node B, an evolved-NodeB (eNB), a Next Generation NodeB (gNB), a base transceiver system (BTS), an access point (AP), and a network (5G Network), AI (Artificial Intelligence) system/module, RSU (road side unit), robot, drone (UAV: Unmanned Aerial Vehicle), AR (Augmented Reality) device, VR (Virtual Reality) device, etc.
- AI Artificial Intelligence
- RSU road side unit
- robot UAV: Unmanned Aerial Vehicle
- AR Algmented Reality
- VR Virtual Reality
- a terminal may be fixed or mobile, and a user equipment (UE), a mobile station (MS), a user terminal (UT), a mobile subscriber station (MSS), a subscriber station (SS), and an advanced mobile (AMS) Station), WT (Wireless terminal), MTC (Machine-Type Communication) device, M2M (Machine-to-Machine) device, D2D (Device-to-Device) device, vehicle, RSU (road side unit), It can be replaced with terms such as robot, AI (Artificial Intelligence) module, drone (UAV: Unmanned Aerial Vehicle), AR (Augmented Reality) device, VR (Virtual Reality) device, etc.
- AI Artificial Intelligence
- drone UAV: Unmanned Aerial Vehicle
- AR Algmented Reality
- VR Virtual Reality
- CDMA may be implemented with a radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000.
- TDMA may be implemented with a radio technology such as Global System for Mobile communications (GSM)/General Packet Radio Service (GPRS)/Enhanced Data Rates for GSM Evolution (EDGE).
- GSM Global System for Mobile communications
- GPRS General Packet Radio Service
- EDGE Enhanced Data Rates for GSM Evolution
- OFDMA may be implemented with radio technologies such as IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, and Evolved UTRA (E-UTRA).
- UTRA is part of the Universal Mobile Telecommunications System (UMTS).
- 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) is a part of Evolved UMTS (E-UMTS) using E-UTRA
- LTE-A (Advanced) / LTE-A pro is an evolved version of 3GPP LTE.
- 3GPP NR New Radio or New Radio Access Technology
- 3GPP LTE/LTE-A/LTE-A pro is an evolved version of 3GPP LTE/LTE-A/LTE-A pro.
- LTE refers to technology after 3GPP Technical Specification (TS) 36.xxx Release 8.
- TS Technical Specification
- LTE technology after 3GPP TS 36.xxx Release 10 is referred to as LTE-A
- LTE technology after 3GPP TS 36.xxx Release 13 is referred to as LTE-A pro
- 3GPP NR refers to technology after TS 38.xxx Release 15.
- LTE/NR may be referred to as a 3GPP system.
- "xxx" means standard document detail number.
- LTE/NR may be collectively referred to as a 3GPP system.
- TS 36.211 Physical Channels and Modulation
- TS 36.212 Multiplexing and Channel Coding
- TS 36.213 Physical Layer Procedures
- TS 36.300 General Description
- TS 36.331 Radio Resource Control
- TS 38.211 Physical Channels and Modulation
- TS 38.212 Multiplexing and Channel Coding
- TS 38.213 Physical Layer Procedures for Control
- TS 38.214 Physical Layer Procedures for Data
- TS 38.300 General description of NR and New Generation-Radio Access Network (NG-RAN)
- TS 38.331 Radio Resource Control Protocol Specification
- channel state information - reference signal resource indicator channel state information - reference signal resource indicator
- channel state information - reference signal channel state information - reference signal
- Layer 1 reference signal received quality Layer 1 reference signal received quality
- orthogonal frequency division multiplexing orthogonal frequency division multiplexing (orthogonal frequency division multiplexing)
- radio resource control radio resource control
- Synchronization signal block including primary synchronization signal (PSS), secondary synchronization signal (SSS) and physical broadcast channel (PBCH)
- NR is an expression showing an example of 5G RAT.
- a new RAT system including NR uses an OFDM transmission scheme or a transmission scheme similar thereto.
- the new RAT system may follow OFDM parameters different from those of LTE.
- the new RAT system follows the numerology of the existing LTE/LTE-A as it is, but may support a larger system bandwidth (eg, 100 MHz).
- one cell may support a plurality of numerologies. That is, terminals operating with different numerologies can coexist in one cell.
- a numerology corresponds to one subcarrier spacing in the frequency domain.
- Different numerologies can be defined by scaling the reference subcarrier spacing by an integer N.
- FIG. 1 illustrates the structure of a wireless communication system to which the present disclosure may be applied.
- the NG-RAN is a NG-RA (NG-Radio Access) user plane (ie, a new AS (access stratum) sublayer / PDCP (Packet Data Convergence Protocol) / RLC (Radio Link Control) / MAC / PHY) and control plane (RRC) protocol termination to the UE.
- the gNBs are interconnected through an Xn interface.
- the gNB is also connected to a New Generation Core (NGC) through an NG interface. More specifically, the gNB is connected to an Access and Mobility Management Function (AMF) through an N2 interface and to a User Plane Function (UPF) through an N3 interface.
- AMF Access and Mobility Management Function
- UPF User Plane Function
- FIG. 2 illustrates a frame structure in a wireless communication system to which the present disclosure can be applied.
- An NR system can support multiple numerologies.
- numerology may be defined by subcarrier spacing and Cyclic Prefix (CP) overhead.
- the multiple subcarrier spacing can be derived by scaling the basic (reference) subcarrier spacing by an integer N (or ⁇ ).
- N or ⁇
- the numerology used can be selected independently of the frequency band.
- various frame structures according to a plurality of numerologies may be supported.
- OFDM numerology and frame structure that can be considered in the NR system will be described.
- Multiple OFDM numerologies supported in the NR system can be defined as shown in Table 1 below.
- NR supports multiple numerologies (or subcarrier spacing (SCS)) to support various 5G services. For example, when the SCS is 15 kHz, it supports a wide area in traditional cellular bands, and when the SCS is 30 kHz/60 kHz, dense-urban, lower latency and a wider carrier bandwidth, and when the SCS is 60 kHz or higher, a bandwidth greater than 24.25 GHz is supported to overcome phase noise.
- SCS subcarrier spacing
- the NR frequency band is defined as two types of frequency ranges (FR1 and FR2).
- FR1 and FR2 may be configured as shown in Table 2 below.
- FR2 may mean millimeter wave (mmW).
- ⁇ f max 480 10 3 Hz
- N f 4096.
- T TA (N TA +N TA,offset )T c before the start of the corresponding downlink frame in the corresponding terminal.
- slots are numbered in increasing order of n s ⁇ ⁇ 0,..., N slot subframe, ⁇ -1 ⁇ within a subframe, and within a radio frame They are numbered in increasing order n s,f ⁇ ⁇ 0,..., N slot frame, ⁇ -1 ⁇ .
- One slot is composed of consecutive OFDM symbols of N symb slots , and N symb slots are determined according to CP.
- the start of slot n s ⁇ in a subframe is temporally aligned with the start of OFDM symbol n s ⁇ N symb slot in the same subframe. Not all terminals can simultaneously transmit and receive, which means that not all OFDM symbols in a downlink slot or uplink slot can be used.
- Table 3 shows the number of OFDM symbols per slot (N symb slot ), the number of slots per radio frame (N slot frame, ⁇ ), and the number of slots per subframe (N slot subframe, ⁇ ) in the general CP.
- Table 4 represents the number of OFDM symbols per slot, the number of slots per radio frame, and the number of slots per subframe in the extended CP.
- one subframe may include 4 slots.
- a mini-slot may contain 2, 4 or 7 symbols, more or fewer symbols.
- an antenna port a resource grid, a resource element, a resource block, a carrier part, etc. can be considered Hereinafter, the physical resources that can be considered in the NR system will be described in detail.
- the antenna port is defined such that the channel on which a symbol on the antenna port is carried can be inferred from the channel on which other symbols on the same antenna port are carried. If the large-scale properties of the channel on which the symbols on one antenna port are carried can be inferred from the channel on which the symbols on the other antenna port are carried, then the two antenna ports are quasi co-located or QC/QCL (quasi co-located or quasi co-location).
- the wide range characteristic includes one or more of delay spread, Doppler spread, frequency shift, average received power, and received timing.
- FIG 3 illustrates a resource grid in a wireless communication system to which the present disclosure may be applied.
- a resource grid is composed of N RB ⁇ N sc RB subcarriers in the frequency domain, and one subframe is composed of 14 2 ⁇ OFDM symbols.
- a transmitted signal is described by one or more resource grids consisting of N RB ⁇ N sc RB subcarriers and 2 ⁇ N symb ( ⁇ ) OFDM symbols.
- N RB ⁇ ⁇ N RB max, ⁇ The N RB max, ⁇ represents the maximum transmission bandwidth, which may vary not only between numerologies but also between uplink and downlink.
- one resource grid may be set for each ⁇ and antenna port p.
- Each element of the resource grid for ⁇ and antenna port p is referred to as a resource element, and the index pair (k, ) is uniquely identified by
- an index pair (k, l) is used.
- l 0,...,N symb ⁇ -1.
- ⁇ and the resource factor for antenna port p (k, ) is a complex value corresponds to If there is no risk of confusion, or if a particular antenna port or numerology is not specified, the indices p and ⁇ can be dropped, resulting in a complex value or This can be.
- Point A serves as a common reference point of the resource block grid and is obtained as follows.
- OffsetToPointA for primary cell (PCell) downlink represents the frequency offset between point A and the lowest subcarrier of the lowest resource block overlapping the SS/PBCH block used by the UE for initial cell selection. It is expressed in resource block units assuming a 15 kHz subcarrier spacing for FR1 and a 60 kHz subcarrier spacing for FR2.
- -absoluteFrequencyPointA represents the frequency-position of point A expressed as in ARFCN (absolute radio-frequency channel number).
- Common resource blocks are numbered upward from 0 in the frequency domain for the subcarrier spacing ⁇ .
- the center of subcarrier 0 of common resource block 0 for subcarrier spacing setting ⁇ coincides with 'point A'.
- the relationship between the common resource block number n CRB ⁇ and the resource elements (k, l) for the subcarrier spacing ⁇ is given by Equation 1 below.
- Physical resource blocks are numbered from 0 to N BWP,i size, ⁇ -1 within a bandwidth part (BWP), where i is the number of BWP.
- BWP bandwidth part
- Equation 2 The relationship between the physical resource block n PRB and the common resource block n CRB in BWP i is given by Equation 2 below.
- N BWP,i start, ⁇ is a common resource block where BWP starts relative to common resource block 0.
- Figure 4 illustrates a physical resource block in a wireless communication system to which the present disclosure may be applied.
- Figure 5 illustrates a slot structure in a wireless communication system to which the present disclosure can be applied.
- a slot includes a plurality of symbols in the time domain. For example, in the case of a normal CP, one slot includes 7 symbols, but in the case of an extended CP, one slot includes 6 symbols.
- a carrier includes a plurality of subcarriers in the frequency domain.
- a resource block (RB) is defined as a plurality of (eg, 12) consecutive subcarriers in the frequency domain.
- a bandwidth part (BWP) is defined as a plurality of contiguous (physical) resource blocks in the frequency domain, and may correspond to one numerology (eg, SCS, CP length, etc.).
- a carrier may include up to N (eg, 5) BWPs. Data communication is performed through an activated BWP, and only one BWP can be activated for one terminal.
- Each element in the resource grid is referred to as a resource element (RE), and one complex symbol may be mapped.
- RE resource element
- the NR system can support up to 400 MHz per component carrier (CC). If a terminal operating in such a wideband CC always operates with radio frequency (RF) chips for the entire CC turned on, battery consumption of the terminal may increase.
- a terminal operating in such a wideband CC always operates with radio frequency (RF) chips for the entire CC turned on, battery consumption of the terminal may increase.
- RF radio frequency
- different numerologies eg subcarrier spacing, etc.
- the capability for the maximum bandwidth may be different for each terminal.
- the base station may instruct the terminal to operate only in a part of the bandwidth rather than the entire bandwidth of the wideband CC, and the part of the bandwidth is defined as a bandwidth part (BWP) for convenience.
- BWP may be composed of consecutive RBs on the frequency axis and may correspond to one numerology (eg, subcarrier spacing, CP length, slot/mini-slot period).
- the base station may set multiple BWPs even within one CC configured for the terminal. For example, in a PDCCH monitoring slot, a BWP occupying a relatively small frequency domain may be set, and a PDSCH indicated by the PDCCH may be scheduled on a larger BWP. Alternatively, when UEs are concentrated in a specific BWP, some UEs may be set to other BWPs for load balancing. Alternatively, considering frequency domain inter-cell interference cancellation between neighboring cells, some of the spectrum among the entire bandwidth may be excluded and both BWPs may be configured even within the same slot. That is, the base station may configure at least one DL/UL BWP for a terminal associated with a wideband CC.
- the base station may activate at least one DL/UL BWP among the configured DL/UL BWP(s) at a specific time (by L1 signaling or MAC Control Element (CE) or RRC signaling).
- the base station may indicate switching to another configured DL / UL BWP (by L1 signaling or MAC CE or RRC signaling).
- a timer value expires based on a timer, it may be switched to a predetermined DL/UL BWP.
- the activated DL/UL BWP is defined as an active DL/UL BWP.
- the terminal In situations such as when the terminal is performing an initial access process or before an RRC connection is set up, it may not be possible to receive the configuration for DL / UL BWP, so in this situation, the terminal This assumed DL/UL BWP is defined as the first active DL/UL BWP.
- FIG. 6 illustrates physical channels used in a wireless communication system to which the present disclosure can be applied and a general signal transmission/reception method using them.
- a terminal receives information from a base station through downlink, and the terminal transmits information to the base station through uplink.
- Information transmitted and received between the base station and the terminal includes data and various control information, and various physical channels exist according to the type/use of the information transmitted and received by the base station and the terminal.
- the terminal When the terminal is turned on or newly enters a cell, the terminal performs an initial cell search operation such as synchronizing with the base station (S601). To this end, the terminal synchronizes with the base station by receiving a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) from the base station, and obtains information such as a cell identifier (ID: Identifier). can Thereafter, the UE may acquire intra-cell broadcast information by receiving a Physical Broadcast Channel (PBCH) from the base station. Meanwhile, the terminal may check the downlink channel state by receiving a downlink reference signal (DL RS) in the initial cell search step.
- PSS primary synchronization signal
- SSS secondary synchronization signal
- ID cell identifier
- the UE may acquire intra-cell broadcast information by receiving a Physical Broadcast Channel (PBCH) from the base station.
- PBCH Physical Broadcast Channel
- the terminal may check the downlink channel state by receiving a downlink reference signal (DL RS) in the initial cell
- the UE After completing the initial cell search, the UE acquires more detailed system information by receiving a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Control Channel (PDSCH) according to information carried on the PDCCH. It can (S602).
- PDCCH Physical Downlink Control Channel
- PDSCH Physical Downlink Control Channel
- the terminal may perform a random access procedure (RACH) to the base station (steps S603 to S606).
- RACH random access procedure
- the terminal may transmit a specific sequence as a preamble through a physical random access channel (PRACH) (S603 and S605), and receive a response message to the preamble through a PDCCH and a corresponding PDSCH ( S604 and S606).
- PRACH physical random access channel
- a contention resolution procedure may be additionally performed.
- the UE receives PDCCH/PDSCH as a general uplink/downlink signal transmission procedure (S607) and Physical Uplink Shared Channel (PUSCH)/Physical Uplink Control Channel (PUCCH: Physical Uplink Control Channel) transmission (S608) may be performed.
- the terminal receives downlink control information (DCI) through the PDCCH.
- DCI downlink control information
- the DCI includes control information such as resource allocation information for a terminal, and has different formats depending on its purpose of use.
- the control information that the terminal transmits to the base station through the uplink or the terminal receives from the base station is a downlink / uplink ACK / NACK (Acknowledgement / Non-Acknowledgement) signal, CQI (Channel Quality Indicator), PMI (Precoding Matrix) Indicator), RI (Rank Indicator), etc.
- a terminal may transmit control information such as the above-described CQI/PMI/RI through PUSCH and/or PUCCH.
- Table 5 shows an example of a DCI format in the NR system.
- DCI format uses 0_0 Scheduling of PUSCH in one cell 0_1 Scheduling of one or multiple PUSCHs in one cell, or indication of cell group (CG) downlink feedback information to the UE 0_2 Scheduling of PUSCH in one cell 1_0 Scheduling of PDSCH in one DL cell 1_1 Scheduling of PDSCH in one cell 1_2 Scheduling of PDSCH in one cell
- DCI formats 0_0, 0_1, and 0_2 are resource information related to PUSCH scheduling (eg, UL/SUL (Supplementary UL), frequency resource allocation, time resource allocation, frequency hopping, etc.), transport block ( TB: Transport Block) related information (eg, MCS (Modulation Coding and Scheme), NDI (New Data Indicator), RV (Redundancy Version), etc.), HARQ (Hybrid - Automatic Repeat and request) related information (eg, , process number, downlink assignment index (DAI), PDSCH-HARQ feedback timing, etc.), multi-antenna related information (eg, DMRS sequence initialization information, antenna port, CSI request, etc.), power control information (eg, PUSCH power control, etc.), and control information included in each DCI format may be predefined.
- PUSCH scheduling eg, UL/SUL (Supplementary UL), frequency resource allocation, time resource allocation, frequency hopping, etc.
- DCI format 0_0 is used for PUSCH scheduling in one cell.
- Information included in DCI format 0_0 is a cyclic redundancy check (CRC) by C-RNTI (Cell RNTI: Cell Radio Network Temporary Identifier), CS-RNTI (Configured Scheduling RNTI) or MCS-C-RNTI (Modulation Coding Scheme Cell RNTI) ) is scrambled and transmitted.
- CRC cyclic redundancy check
- C-RNTI Cell RNTI: Cell Radio Network Temporary Identifier
- CS-RNTI Configured Scheduling RNTI
- MCS-C-RNTI Modulation Coding Scheme Cell RNTI
- DCI format 0_1 is used to indicate scheduling of one or more PUSCHs in one cell or configured grant (CG) downlink feedback information to the UE.
- Information included in DCI format 0_1 is transmitted after being CRC scrambled by C-RNTI, CS-RNTI, SP-CSI-RNTI (Semi-Persistent CSI RNTI) or MCS-C-RNTI.
- DCI format 0_2 is used for PUSCH scheduling in one cell.
- Information included in DCI format 0_2 is transmitted after being CRC scrambled by C-RNTI, CS-RNTI, SP-CSI-RNTI or MCS-C-RNTI.
- DCI formats 1_0, 1_1, and 1_2 are resource information related to PDSCH scheduling (eg, frequency resource allocation, time resource allocation, VRB (virtual resource block)-PRB (physical resource block) mapping, etc.), transport block (TB) related information (eg, MCS, NDI, RV, etc.), HARQ related information (eg, process number, DAI, PDSCH-HARQ feedback timing, etc.), multi-antenna related information (eg, antenna port , transmission configuration indicator (TCI), sounding reference signal (SRS) request, etc.), PUCCH-related information (eg, PUCCH power control, PUCCH resource indicator, etc.), and the control information included in each DCI format can be predefined.
- PDSCH scheduling eg, frequency resource allocation, time resource allocation, VRB (virtual resource block)-PRB (physical resource block) mapping, etc.
- transport block (TB) related information eg, MCS, NDI, RV, etc.
- HARQ related information
- DCI format 1_0 is used for PDSCH scheduling in one DL cell.
- Information included in DCI format 1_0 is transmitted after being CRC scrambled by C-RNTI, CS-RNTI or MCS-C-RNTI.
- DCI format 1_1 is used for PDSCH scheduling in one cell.
- Information included in DCI format 1_1 is transmitted after being CRC scrambled by C-RNTI, CS-RNTI or MCS-C-RNTI.
- DCI format 1_2 is used for PDSCH scheduling in one cell.
- Information included in DCI format 1_2 is transmitted after being CRC scrambled by C-RNTI, CS-RNTI or MCS-C-RNTI.
- MBMS Multimedia Broadcast Multicast Service
- MBMS is a single frequency network (SFN) method in which a plurality of base stations or cells are synchronized to transmit the same data to a terminal, and a single cell point to multipoint (SC-PTM) method broadcasting within a corresponding cell coverage through a PDCCH / PDSCH channel. ) method may be included.
- SFN single frequency network
- SC-PTM single cell point to multipoint
- the SFN scheme may be used to provide a broadcast service in a wide area (eg, MBMS area) through semi-statically allocated resources.
- MBSFN Multicast Broadcast Single Frequency Network
- MCCH Multicast Control Channel
- MTCH Multicast Traffic Channel
- both MCCH and MTCH are transport channels MCH (Multicast Channel)
- PMCH physical multicast channel
- a plurality of base stations/cells may be synchronized to provide the same data to the terminal through the PMCH.
- One base station/cell may belong to multiple MBSFN areas.
- MBSFN subframe configuration may be required for MBSFN service.
- the SC-PTM scheme may be mainly used to provide a broadcast service only within cell coverage through dynamic resources.
- SC-PTM provides one logical channel SC-MCCH (Single Cell Multicast Control Channel) and one or more logical channels SC-MTCH (Single Cell Multicast Traffic Channel). These logical channels (i.e., SC-MCCH and SC-MTCH) are mapped to the transport channel DL-SCH, and the transport channel DL-SCH is mapped to the physical channel PDSCH.
- a PDSCH transmitting data corresponding to the SC-MCCH or SC-MTCH is scheduled through a PDCCH scrambled by CRC with a Group-Radio Network Temporary Identifier (G-RNTI).
- G-RNTI Group-Radio Network Temporary Identifier
- TMGI Temporal Mobile Group Identity
- TMGI Temporal Mobile Group Identity
- a base station provides multiple MBMS services, multiple G-RNTI values may be allocated for SC-PTM transmission.
- One or a plurality of terminals may perform PDCCH monitoring using a specific G-RNTI to receive a specific MBMS service.
- a discontinuous reception (DRX) on-duration period dedicated to SC-PTM may be configured for a specific MBMS service/specific G-RNTI. In this case, the corresponding terminals can wake up only for a specific on-duration period and perform PDCCH monitoring for the G-RNTI.
- SPS Semi-persistent Scheduling
- the base station may provide a terminal-specific SPS configuration to a specific terminal and allocate one or more downlink SPS transmission resources repeated according to a set period.
- DCI of a UE-specific (or UE-specific) PDCCH may indicate activation of a specific SPS configuration index (SPS activation).
- the UE may perform downlink reception through activated SPS transmission resources. These SPS transmission resources may be used for initial HARQ transmission.
- the base station may allocate retransmission resources of a specific SPS configuration index through the DCI of the terminal-dedicated PDCCH. For example, if the terminal reports HARQ NACK for SPS transmission resources, the base station can allocate retransmission resources with DCI so that the terminal can receive downlink retransmission.
- the DCI of the UE-dedicated PDCCH may indicate release or deactivation of a specific SPS configuration index. In this case, the corresponding terminal does not receive the SPS transmission resource for which release/deactivation is instructed.
- the CRC of DCI/PDCCH for activation/retransmission/deactivation of SPS configuration/resources may be scrambled by configured scheduling-radio network temporary identifier (CS-RNTI).
- CS-RNTI scheduling-radio network temporary identifier
- MMS Multicast Broadcast Service
- the network side eg base station/cell/TRP
- PTM point-to-multipoint
- PTP point-to-point
- a base station may transmit a group common (or group-specific) PDCCH (Group Common PDCCH) and a group common PDSCH (Group Common PDSCH) to a plurality of terminals.
- a plurality of terminals can simultaneously receive the same group common PDCCH and group common PDSCH transmission to decode the same MBS data.
- a base station can transmit a UE-specific (or UE-specific) PDCCH and a UE-specific PDSCH to a specific UE.
- the corresponding one UE may receive the UE-dedicated PDCCH and the UE-dedicated PDSCH.
- the base station may separately transmit the same MBS data to each of the plurality of terminals through different terminal-dedicated PDCCHs and terminal-dedicated PDSCHs.
- FIG. 7 is a diagram illustrating an example of a group common PDSCH to which the present disclosure can be applied and HARQ-ACK transmission therefor.
- the terminal may not drive a timer for switching or inactivation.
- the terminal may drive the timer according to PDCCH reception of the current active BWP.
- the terminal may drive the timer according to PDCCH reception of the current active BWP.
- the UE may receive group common PDCCHs/PDSCHs scheduled in different G-RNTIs through FDM or TDM.
- the base station may set a common frequency resource (CFR), which is a frequency domain similar to BWP, and the terminal may receive a group common PDCCH/PDSCH through the CFR.
- CFR common frequency resource
- a UE in RRC connected mode can activate one DL BWP to receive a unicast PDCCH/PDSCH, and receive a group common PDCCH/PDSCH through a CFR connected to the activated DL BWP.
- the UE may transmit multicast HARQ-ACK (eg, HARQ ACK/NACK) for the group common PDCCH/PDSCH.
- a UE in an RRC idle mode or inactive mode may receive a group common PDCCH through a CFR connected to an initial DL BWP.
- a UE in an RRC idle or inactive mode may receive a group common PDCCH/PDSCH for broadcast through an initial BWP or a CFR including the initial BWP.
- the terminal can receive a bandwidth equal to the CFR only during a time interval during which a service of interest is transmitted.
- the terminal may receive only the bandwidth of the initial BWP.
- the bandwidth of the initial BWP corresponds to the bandwidth of the basic control resource set (CORESET) (eg, CORESET0) set by the master information block (MIB) that can be obtained through the PBCH in the synchronization process, or the system information block It may correspond to the bandwidth of the initial BWP set by 1 (SIB1).
- CORESET basic control resource set
- MIB master information block
- SIB1 system information block
- the terminal for initial access RACH process can be performed.
- message 3 MSG3 of the 4-step RACH process or message A (MSGA) of the 2-step RACH process
- the terminal may inform the base station whether or not the terminal has received the broadcast through MSG3 of the 4-step RACH process or MSGA of the 2-step RACH process as follows:
- Method 1 is a method in which an establishment case field of an RRC request or RRC resume request message informs whether a broadcast has been received.
- the terminal may inform the base station of broadcast reception through the Establishment case field of the RRC request or RRC resume request message. For example, whether the terminal is receiving a broadcast may be indicated through a specific reserved value of the Establishment case field. In addition, whether a specific reserved value of the Establishment case field is receiving a broadcast on which BWP, which CFR, or which frequency may be indicated may be indicated.
- Method 2 is a method in which a logical channel ID (LCID) field of a MAC PDU header including an RRC request or RRC resume request message informs whether a broadcast is received.
- LCID logical channel ID
- the header of the MAC PDU included in the RRC setup request or RRC resume request message may indicate whether broadcast is received.
- a specific value of the LCID field of the header can indicate whether or not broadcast is received.
- a specific value of the LCID field of the header may indicate which BWP, which CFR, or which frequency the broadcast is being received on.
- a specific value of the LCID field of the header may indicate which G-RNTI is being received.
- the corresponding MAC PDU corresponds to MSG3 of the 4-step RACH process or MSGA of the 2-step RACH process.
- MSG3 of the 4-step RACH process or MSGA of the 2-step RACH process may include a MAC control element (CE).
- a specific field of the MAC CE may indicate whether a broadcast is received, which BWP, which CFR, or which frequency the broadcast is being received on, and which G-RNTI is being received.
- Method 3 is a method in which the RACH preamble ID or RACH opportunity or UL BWP of a 4-step RACH or 2-step RACH process informs whether or not a broadcast has been received.
- the RACH preamble ID or RACH Occasion or UL BWP used in transmission of the preamble part of the MSG1 of the 4-step RACH process or the MSGA of the 2-step RACH process determines whether broadcast is received. can tell you Alternatively, through the RACH process, it is possible to indicate which BWP, which CFR, which frequency the broadcast is being received on, which G-RNTI is being received, and the like.
- the terminal may report to the base station whether or not the broadcast is being received through the RACH.
- the base station may transmit an RRC setup message or an RRC resume message to the terminal.
- These RRC setup messages or RRC resume messages may include broadcast CFR configuration information, and configuration information for the initial/default BWP or first active DL BWP that supports broadcast CFR may also be included.
- the terminal may switch to connected mode
- the terminal may configure initial/default BWP or first active DL BWP related to broadcast CFR according to the setting information in connected mode can
- the initial BWP related to broadcast CFR may include broadcast CFR.
- This initial BWP may be different from the initial BWP set to MIB or SIB, and may be an initial BWP with a wider bandwidth than the initial BWP set to MIB or SIB.
- broadcast CFR configuration may be received from SIB1 or SIBx (x > 1) or MCCH message.
- SIB1 or SIBx (x > 1) or MCCH message A terminal that previously received broadcast transmission can continue to maintain these broadcast CFR settings even after switching to connected mode.
- the initial BWP of connected mode can be set as follows.
- the terminal can maintain the initial BWP set according to SIB1 in the connected mode as in the prior art, and apply broadcast CFR only when receiving broadcast.
- the terminal can expand the bandwidth by the broadcast CFR according to the broadcast reception time. If the broadcast CFR does not include the initial BWP or the SCS is different, the UE can receive the broadcast CFR by switching the BWP at the broadcast reception time.
- the terminal separately receives the initial BWP setting supporting broadcast CFR from the SIBx (x > 1) or MCCH message, and applies the initial BWP setting received from the SIBx (x > 1) or MCCH message in connected mode. can do.
- the initial BWP can be set to include broadcast CFR or broadcast CFR. Therefore, the terminal does not need to expand or switch bandwidth for broadcast CFR reception.
- the base station may set a UE-specific BWP. If the terminal reports broadcast reception, the base station can configure the UE specific BWP to be configured to include the broadcast CFR.
- UE specific BWP may also include multicast CFR. In this case, the terminal may receive broadcast and multicast transmission through one CFR. Alternatively, the UE may receive broadcast and multicast transmission through two CFRs (ie broadcast CFR and multicast CFR).
- the base station configures resource blocks and max MIMO layers for BWP or CFR , maximum modulation order setting, etc. may be provided to the terminal. If one CFR supports both broadcast and multicast, the UE receives both broadcast and multicast according to the resource block configuration, max MIMO layer configuration, and max modulation order configuration of the broadcast CFR. Alternatively, if one CFR supports both broadcast and multicast, the terminal receives both broadcast and multicast according to the resource block configuration, max MIMO layer configuration, and max modulation order configuration of the multicast CFR.
- LBRM buffer rate matching
- broadcast and multicast transmission are received through two CFRs (i.e. broadcast CFR and multicast CFR)
- broadcast is received according to the Resource Block setting, max MIMO layer setting, and max modulation order setting of broadcast CFR
- Resource Block of multicast CFR Multicast can be received according to the setting, max MIMO layer setting, and max modulation order setting.
- Operations such as bandwidth part (BWP) switching, cell deactivation, and RRC connection release in the terminal may be performed based on a timer. For example, when a corresponding timer expires, BWP switching, cell deactivation, RRC connection release, and the like may occur.
- a timer-based operation it is defined that a corresponding timer is started or restarted when unicast data for a terminal or scheduling information thereof is received in an existing wireless communication system. That is, since the corresponding timer is not started/restarted even when the terminal receives multicast data or scheduling information thereof, there is a problem in that situations such as BWP switching, cell deactivation, or RRC connection disconnection may occur while receiving multicast data.
- FIG. 8 is a diagram for explaining an example of a method for receiving a downlink channel of a terminal according to the present disclosure.
- the UE may receive the PDCCH based on the G-RNTI configured for group common scheduling of a specific type.
- the G-RNTI may be configured for either the first type (eg, multicast type) group common scheduling or the second type (eg, broadcast type) group common scheduling.
- the PDCCH may correspond to a first type DCI format or a second type DCI format.
- the first type DCI format may be CRC scrambled based on the G-RNTI configured for first type group common scheduling, and the first type group common PDSCH may be scheduled.
- the second type DCI format may be CRC scrambled based on the G-RNTI configured for the second type group common scheduling, and the second type group common PDSCH may be scheduled.
- step S820 the UE may determine whether to start or restart the BWP inactivity timer based on the type of group common scheduling.
- the BWP inactivity timer (eg, the first inactivity timer) may be started/restarted based on the G-RNTI configured for group common scheduling of the first type or the second type.
- the BWP inactivity timer may not be started or restarted based on the G-RNTI configured for group common scheduling of the second type among the first type or the second type.
- the UE may receive a group common PDSCH based on the PDCCH.
- a group common PDSCH may be received in an active BWP (eg, the first BWP) in which the PDCCH is received.
- an active BWP eg, the first BWP
- BWP switching may be performed from the first BWP to the second BWP (eg, initial or default BWP).
- the second BWP eg, initial or default BWP.
- the PDCCH based on the G-RNTI configured for the second type group common scheduling is received, switching to the second BWP is performed before receiving the PDSCH or during PDSCH reception because the BWP deactivation timer is not started/restarted. can be performed Alternatively, when the PDCCH based on the G-RNTI configured for the 1st type group common scheduling is received, the PDCCH and the PDSCH can be received on the same 1st BWP because the BWP deactivation timer is started/restarted.
- a MAC PDU may be obtained through decoding of the PDSCH, and a MAC SDU may be obtained through processing of the MAC PDU.
- a data inactivity timer eg, a second inactivity timer
- a BWP inactivity timer eg, a first inactivity timer
- the data inactivity timer may not start/restart.
- an action of the terminal related to RRC release (or transition to the RRC idle state) may be performed.
- FIG. 9 is a diagram for explaining an example of a downlink channel transmission method of a base station according to the present disclosure.
- the base station may transmit a PDCCH to one or more terminals based on the G-RNTI configured for group common scheduling of a specific type (eg, first type or second type).
- a specific type eg, first type or second type.
- the base station may determine/expect whether to start/restart the BWP inactivity timer in the terminal based on the type of group common scheduling.
- the base station may transmit a group common PDSCH to one or more terminals based on the PDCCH.
- BWP switching may not be performed (ie, an active BWP is maintained) before the BWP-inactivation timer starts/restarts and expires (ie, running).
- RRC release (or transition to the RRC idle state) may not be performed (ie, the RRC connection state is maintained) before the data-inactivity timer starts/restarts and expires (ie, is in operation).
- the deactivation timer may start/restart for the group common scheduling of the first type, but may not start/restart the deactivation timer for the group common scheduling of the second type.
- This embodiment relates to a BWP-inactivity timer (BWP-InactivityTimer) based operation of a terminal receiving group common transmission.
- BWP-InactivityTimer BWP-InactivityTimer
- a plurality of BWPs may be set for a terminal in RRC connection mode.
- BWP-inactivityTimer the BWP-inactivity timer
- the destination of BWP switching may be a default BWP if a default BWP is configured for the terminal, and may be an initial BWP if there is no default BWP configuration.
- the UE transmits a PDCCH (eg, corresponding to a DCI format scrambled by CRC to C-RNTI/CS-RNTI) indicating UE-specific scheduling (eg, unicast scheduling).
- UE-specific scheduling eg, unicast scheduling.
- BWP-InactivityTimer is started/restarted. That is, in this case, to prevent BWP deactivation/switching, the corresponding timer can be started/restarted so that the BWP-InactivityTimer does not expire.
- a PDCCH e.g., corresponding to a DCI format scrambled by CRC with G-RNTI
- group common scheduling such as multicast/broadcast
- the BWP-InactivityTimer may be started or restarted upon DCI reception for a specific cast type (eg, multicast type or broadcast type) or specific G-RNTI. BWP-InactivityTimer may not be started/restarted when DCI for a cast type other than the specific cast type or G-RNTI is received.
- the terminal receiving scheduling for the multicast type PDSCH may start or restart the BWP-InactivityTimer.
- the terminal receiving scheduling for the broadcast type PDSCH may not start or restart the BWP-InactivityTimer. That is, when receiving PDCCH of a DCI whose CRC is scrambled with a specific G-RNTI like multicast G-RNTI, BWP-InactivityTimer is started or restarted, and CRC is scrambled with a specific G-RNTI like broadcast G-RNTI.
- the BWP-InactivityTimer may not be started/restarted.
- BWP-InactivityTimer is not started/restarted regardless of the group common scheduling type. may not be For example, if CFR is not set in the default/initial BWP, which is the destination BWP of BWP switching due to expiration of the BWP-InactivityTimer, or if the desired type of G-RNTI is not provided, the terminal is currently active (active ) BWP-InactivityTimer may not be started/restarted when PDCCH is received for both broadcast type and multicast type in BWP.
- DCI scheduling PTP retransmission for PTM transmission may be CRC scrambled with C-RNTI or CS-RNTI, and PTP retransmission for TB transmitted by PTM may be scheduled.
- BWP-InactivityTimer may not start/restart.
- BWP-InactivityTimer may not start/restart.
- DCI can be CRC scrambled with C-RNTI or CS-RNTI, and PTP retransmission for TB transmitted through broadcast PTM can be scheduled.
- BWP-InactivityTimer may not start/restart.
- BWP-InactivityTimer may not start/restart.
- the DCI can be CRC scrambled with C-RNTI or CS-RNTI, and PTP retransmission for the TB transmitted through multicast PTM can be scheduled.
- This embodiment relates to a method of not setting a BWP-InactivityTimer in a terminal receiving multicast or broadcast transmission.
- a base station may not set a BWP-InactivityTimer for a terminal reporting an interest indication.
- the terminal may not start or restart the BWP-InactivityTimer and may not perform BWP switching according to the BWP-InactivityTimer. Also, the currently running BWP-InactivityTimer can be stopped.
- the terminal does not start or restart the BWP-InactivityTimer and may not perform BWP switching according to the BWP-InactivityTimer. . Also, the currently running BWP-InactivityTimer can be stopped.
- BWP switching can be performed after receiving group common PDSCH or immediately after HARQ-ACK transmission for group common PDSCH reception.
- BWP switching is not performed even if the BWP-InactivityTimer expires after the group common PDSCH is received or until the HARQ-ACK for the group common PDSCH reception is transmitted. may not perform.
- the UE may not operate the BWP-InactivityTimer if there is MBS configuration in the currently active BWP and there is no MBS configuration in the default/initial BWP.
- the terminal may operate the BWP-InactivityTimer according to PDCCH reception of the currently active BWP.
- the terminal may operate the BWP-InactivityTimer according to PDCCH reception of the currently active BWP.
- the terminal may not operate the BWP-InactivityTimer even if there is an MBS setting in the default/initial BWP. That is, if there is an MBS setting in the currently active BWP, the BWP-InactivityTimer may not be operated regardless of the MBS setting of the default/initial BWP.
- MBS configuration may include CFR configuration, G-RNTI-related configuration to be received, multicast reception-related configuration, or broadcast reception-related configuration.
- Not operating the BWP-InactivityTimer may include not starting/restarting the timer according to PDCCH reception of DCI scrambled with C-RNTI, CS-RNTI, G-RNTI, G-CS-RNTI, etc. .
- BWP inactivation and switching according to the expiration of the timer may not be performed.
- This embodiment relates to a method for a terminal to start receiving group common transmission after BWP switching.
- the UE when the BWP-InactivityTimer expires and the UE switches to the default BWP or initial BWP, the UE automatically starts monitoring the GC (group common)-PDCCH in the default BWP or initial BWP (without a separate setting/instruction).
- the terminal may start GC-PDCCH monitoring in the default BWP or initial BWP.
- the UE may receive DCI on the default BWP or initial BWP.
- the base station may set whether to immediately start GC-PDCCH monitoring in the CFR connected to the destination BWP when a specific terminal switches BWP through an RRC message, MAC CE, or DCI. Whether to start GC-PDCCH monitoring immediately after BWP switching may be set/instructed for each switching destination BWP or CFR, or may be set/instructed for each serving cell.
- the base station When the UE switches to a BWP, CFR, or serving cell that is not set to start GC-PDCCH monitoring immediately after BWP switching, the base station separately configures/instructs whether or not to monitor GC-PDCCH through an RRC message, MAC CE, or DCI You may.
- the UE switches to BWP#2, activates the CFR associated with BWP#2, and activates the GC-PDCCH can be monitored.
- the UE switches to BWP#2, deactivates the CFR associated with BWP#2, and monitors the GC-PDCCH. may not Alternatively, when the DCI or the DCI instructs to stop monitoring the GC-PDCCH or deactivate the associated CFR, the UE switches to BWP#2, deactivates the CFR associated with BWP#2, and may not monitor the GC-PDCCH. there is.
- the UE activates the CFR associated with BWP#2 and monitors the GC-PDCCH.
- This embodiment relates to a PTP transmission method after BWP switching.
- the base station may establish split MBS bearers in different BWPs belonging to the same serving cell.
- one split MBS bearer may be a group common PTM-based bearer belonging to BWP#1, and another split MBS bearer may be a terminal-dedicated PTP-based bearer belonging to BWP#2.
- the BWP-InactivityTimer expires and switches from a certain BWP to a default BWP or an initial BWP
- the UE may activate a PTP-based bearer or a PTM-based bearer mapped to the default BWP or initial BWP.
- the PTP-based bearer or the PTM-based bearer activated here may belong to the same split bearer as the bearer mapped to the BWP before switching.
- the UE may deactivate bearers mapped to BWPs belonging to the same split bearer before switching.
- the UE can immediately start monitoring the PDCCH for initial PTP transmission or retransmission.
- the base station may set whether to immediately start PDCCH monitoring for PTP (re)transmission in the CFR connected to the destination BWP when a specific terminal switches BWP through an RRC message, MAC CE, or DCI.
- Whether to immediately start PDCCH monitoring for PTP (re)transmission after BWP switching may be set/instructed for each switching destination BWP or CFR, or may be set/instructed for each serving cell.
- the base station transmits PTP (re)transmission through an RRC message, MAC CE, or DCI Whether or not to monitor the PDCCH for may be set/instructed separately.
- the base station when retransmitting the TB received in the BWP before switching, uses the same HARQ process ID for TB transmission in the BWP before switching and TB retransmission in the BWP after switching (eg, default BWP or initial BWP) can be scheduled. That is, for the same G-RNTI, the HPN (HARQ process number) field value of DCI for TB transmission of BWP before switching may be the same as the HPN field value of DCI for TB retransmission of BWP after switching.
- the HPN (HARQ process number) field value of DCI for TB transmission of BWP before switching may be the same as the HPN field value of DCI for TB retransmission of BWP after switching.
- This embodiment relates to an operation based on the BWP-InactivityTimer and a separate CFR Inactivity Timer.
- the base station and the terminal may set the CFR-InactivityTimer separately from the BWP-InactivityTimer.
- the UE may start or restart CFR-InactivityTimer upon receiving DCI for G-RNTI or G-CS-RNTI.
- DCI for a specific cast type eg, first type group common scheduling
- a specific G-RNTI e.g., first type group common scheduling
- another cast type e.g, second type group common scheduling
- the UE may switch to the default BWP or the CFR associated with the initial BWP.
- the UE may not switch to the default BWP or the CFR associated with the initial BWP. That is, only when both the CFR-InactivityTimer of the CFR associated with the active BWP and the BWP-InactivityTimer for the active BWP expire, the UE can switch to the default BWP or the CFR associated with the initial BWP. In addition, when both the CFR-InactivityTimer of the CFR associated with the active BWP and the BWP-InactivityTimer for the active BWP expire, the UE may switch to the default BWP or the initial BWP.
- the terminal may not switch to the default BWP or the CFR connected to the initial BWP.
- the terminal may not switch to default BWP or initial BWP.
- the UE may switch to the default BWP or the CFR associated with the initial BWP.
- the terminal can switch to the default BWP or the initial BWP.
- This embodiment relates to the operation of a MAC entity (or layer) related to BWP switching.
- the underlined part in the table below may correspond to a MAC entity operation that may be changed according to the present disclosure based on an operation of an existing MAC entity.
- the BWP switching for a Serving Cell is used to activate an inactive BWP and deactivate an active BWP at a time.
- the BWP switching is controlled by the PDCCH indicating a downlink assignment or an uplink grant, by the bwp-InactivityTimer , by RRC signaling, or by the MAC entity itself upon initiation of Random Access procedure or upon detection of consistent LBT failure on SpCell.
- firstActiveDownlinkBWP-Id and/or firstActiveUplinkBWP-Id for SpCell or activation of an SCell
- the DL BWP and/or UL BWP indicated by firstActiveDownlinkBWP-Id and/or firstActiveUplinkBWP-Id respectively is active without receiving PDCCH indicating a downlink assignment or an uplink grant.
- the active BWP for a Serving Cell is indicated by either RRC or PDCCH.
- a DL BWP is paired with a UL BWP, and BWP switching is common for both UL and DL.
- a dormant BWP may be configured with dormantBWP-Id by RRC signaling. Entering or leaving dormant BWP for SCells is done by BWP switching per SCell or per dormancy SCell group based on instruction from PDCCH.
- the dormancy SCell group configurations are configured by RRC signaling.
- the DL BWP indicated by firstOutsideActiveTimeBWP-Id or by firstWithinActiveTimeBWP-Id is activated.
- the DL BWP indicated by dormantBWP-Id is activated.
- the dormant BWP configuration for SpCell or PUCCH SCell is not supported.
- the MAC entity shall: 1> if a BWP is activated and the active DL BWP for the Serving Cell is not the dormant BWP: 2> transmit on UL-SCH on the BWP; 2> transmit on RACH on the BWP, if PRACH occasions are configured; 2> monitor the PDCCH on the BWP; 2> monitor the GC-PDCCH on CFR associated with the BWP; 2> transmit PUCCH on the BWP, if configured; 2> report CSI for the BWP; 2> transmit SRS on the BWP, if configured; 2> receive DL-SCH on the BWP and CFR associated with the BWP; 2> receive GC-PDSCH on CFR associated with the BWP; 2> (re-)initialize any suspended configured uplink grants of configured grant Type 1 on the active BWP according to the stored
- a BWP is deactivated: 2> not transmit on UL-SCH on the BWP; 2> not transmit on RACH on the BWP; 2> not monitor the PDCCH on the BWP; 2> not monitor the GC-PDCCH on CFR associated with the BWP; 2> not transmit PUCCH on the BWP; 2> not report CSI for the BWP; 2> not transmit SRS on the BWP; 2> not receive DL-SCH on the BWP and CFR associated with the BWP; 2> not receive GC-PDSCH on CFR associated with the BWP; 2> clear any configured downlink assignment and configured uplink grant of configured grant Type 2 on the BWP; 2> clear any configured downlink assignment (ie group common SPS resources) on the CFR associated with the BWP; 2> suspend any configured uplink grant of configured grant Type 1 on the inactive BWP.
- the MAC entity Upon initiation of the Random Access procedure on a Serving Cell, after the selection of carrier for performing Random Access procedure, the MAC entity shall for the selected carrier of this Serving Cell: 1> if PRACH occasions are not configured for the active UL BWP: 2> switch the active UL BWP to BWP indicated by initialUplinkBWP ; 2> if the Serving Cell is an SpCell: 3> switch the active DL BWP to BWP indicated by initialDownlinkBWP . 3> switch the CFR associated with the active DL BWP to the CFR associated with BWP indicated by initialDownlinkBWP .
- the MAC entity shall: 1> if there is no ongoing Random Access procedure associated with this Serving Cell; or 1> if the ongoing Random Access procedure associated with this Serving Cell is successfully completed upon reception of this PDCCH addressed to C-RNTI: 2> cancel, if any, triggered consistent LBT failure for this Serving Cell; 2> perform BWP switching to a BWP indicated by the PDCCH. 2> perform switching to the CFR associated with the BWP indicated by the PDCCH.
- the MAC entity receives a PDCCH for BWP switching for a Serving Cell(s) or a dormancy SCell group(s) while a Random Access procedure associated with that Serving Cell is ongoing in the MAC entity, it is up to UE implementation whether to switch BWP or ignore the PDCCH for BWP switching, except for the PDCCH reception for BWP switching addressed to the C-RNTI for successful Random Access procedure completion in which case the UE shall perform BWP switching to a BWP indicated by the PDCCH.
- the MAC entity Upon reception of the PDCCH for BWP switching other than successful contention resolution, if the MAC entity decides to perform BWP switching, the MAC entity shall stop the ongoing Random Access procedure and initiate a Random Access procedure after performing the BWP switching; if the MAC decides to ignore the PDCCH for BWP switching, the MAC entity shall continue with the ongoing Random Access procedure on the Serving Cell.
- the MAC entity Upon reception of RRC (re-)configuration for BWP switching for a Serving Cell while a Random Access procedure associated with that Serving Cell is ongoing in the MAC entity, the MAC entity shall stop the ongoing Random Access procedure and initiate a Random Access procedure after performing the BWP switching.
- the MAC entity shall for each activated Serving Cell configured with bwp-InactivityTimer : 1> if the defaultDownlinkBWP-Id is configured, and the active DL BWP is not the BWP indicated by the defaultDownlinkBWP-Id , and the active DL BWP is not the BWP indicated by the dormantBWP-Id if configured; or 1> if the defaultDownlinkBWP-Id is not configured, and the active DL BWP is not the initialDownlinkBWP , and the active DL BWP is not the BWP indicated by the dormantBWP-Id if configured: 2> if a PDCCH addressed to C-RNTI or CS-RNTI indicating downlink assignment or uplink grant is received on the active BWP; or 2> if a PDCCH addressed to C-RNTI or CS-RNTI indicating downlink assignment or uplink grant is received on the active BWP; or 2
- the MAC entity of the UE performs the following operations: - BWP is activated and the DL BWP activated for the serving cell is the dormant BWP If not, monitor GC-PDCCH on CFR associated with BWP; Receive DL-SCH on CFR and BWP associated with BWP; Receive GC-PDSCH on CFR associated with BWP.
- the MAC entity When a random access process is initiated on a serving cell, after selecting a carrier on which to perform the random access process, the MAC entity performs the following operations on the selected carrier of the serving cell:
- the PRACH opportunity is not configured for the active UL BWP:
- the serving cell is SpCell (eg, PCell or PSCell):
- the CFR associated with the active DL BWP is indicated by the initial DL BWP (eg, initialDownlinkBWP parameter) switch to the CFR associated with the BWP).
- the MAC entity When the MAC entity receives the PDCCH for BWP switching of the serving cell, the MAC entity performs the following operations:
- the MAC entity For each active serving cell for which bwp-InactivityTimer is set, the MAC entity performs the following actions:
- DL BWP identification information (eg, defaultDownlinkBWP-Id) is set, the active DL BWP is not the BWP indicated by the default DL BWP identification information, and the active DL BWP is (if set) doment BWP identification information ( For example, if it is not a BWP indicated by dormantBWP-Id): or default DL BWP identification information is not set, the active DL BWP is not the initial DL BWP, and the active DL BWP (if set) identifies the dormant BWP If BWP is not indicated by information:
- a PDCCH addressed to a G-RNTI or G-CS-RNTI indicating downlink allocation for multicast/broadcast is received on a CFR associated with an active BWP or received on a CFR associated with an active BWP
- Active DL BWP and Start or restart the CFR-InactivityTimer associated with the associated CFR When: there is no ongoing random access process associated with the serving cell, or when the ongoing random access process associated with the serving cell is successfully completed upon reception of the corresponding PDCCH addressed to the C-RNTI: Active DL BWP and Start or restart the CFR-InactivityTimer associated with the associated CFR.
- default DL BWP identification information eg, defaultDownlinkBWP-Id
- active DL BWP is not the BWP indicated by the default DL BWP identification information
- the active DL BWP (if set) is not the BWP indicated by the dormant BWP identification information (eg, dormantBWP-Id): or default DL BWP identification information is not set
- the active DL BWP is not the initial DL BWP
- the active DL BWP (if set) is not the BWP indicated by the dormant BWP identification: start the bwp-InactivityTimer associated with the active DL BWP, or Restart and start or restart the CFR-InactivityTimer associated with the CFR associated with the active DL BWP.
- This embodiment relates to a SCell deactivation timer (eg, sCellDeactivationTimer) based operation of a terminal receiving group common transmission.
- SCell deactivation timer eg, sCellDeactivationTimer
- the UE may deactivate all CFR(s) related to the SCell and stop the CFR-InactivityTimer of the CFR related to the SCell.
- the UE may release or deactivate all group common SPS resources of the CFR related to the corresponding SCell.
- a UE When a UE receives a DCI in which a CRC is scrambled with a specific G-RNTI or a specific G-CS-RNTI in a certain SCell, or when the received DCI schedules a group common PDSCH, or multicast/broadcast (or a specific type
- the UE may start or restart the sCellDeactivationTimer for the corresponding SCell.
- a specific G-RNTI or a specific G-CS-RNTI can be configured by the base station.
- the specific G-RNTI or specific G-CS-RNTI may be a G-RNTI or G-CS-RNTI for multicast (not broadcast). If DCI in which the CRC is scrambled is received with another G-RNTI or other G-CS-RNTI rather than a specific G-RNTI or specific G-CS-RNTI, the UE will not start or restart the sCellDeactivationTimer for the corresponding SCell.
- the UE may not start or restart the sCellDeactivationTimer for the corresponding SCell.
- the SCell is assumed, but the term SCell may be replaced with the term PCell, PSCell, or serving cell.
- the underlined part in the table below may correspond to a MAC entity operation that may be changed according to the present disclosure based on an operation of an existing MAC entity.
- the network may activate and deactivate the configured SCells.
- the SCell Upon configuration of an SCell, the SCell is deactivated unless the parameter sCellState is set to activated for the SCell by upper layers.
- the configured SCell(s) is activated and deactivated by: - receiving the SCell Activation/Deactivation MAC CE; - configuring sCellDeactivationTimer timer per configured SCell (except the SCell configured with PUCCH, if any): the associated SCell is deactivated upon its expiry; - configuring sCellState per configured SCell: if configured, the associated SCell is activated upon SCell configuration.
- the MAC entity shall for each configured SCell: 1> if an SCell is configured with sCellState set to activated upon SCell configuration, or an SCell Activation/Deactivation MAC CE is received activating the SCell: 2> if the SCell was deactivated prior to receiving this SCell Activation/Deactivation MAC CE; or 2> if the SCell is configured with sCellState set to activated upon SCell configuration: 3> if firstActiveDownlinkBWP-Id is not set to dormant BWP: 4> activate the SCell according to the timing for MAC CE activation and according to the timing for direct SCell activation; ie apply normal SCell operation including: 5> SRS transmissions on the SCell; 5> CSI reporting for the SCell; 5> PDCCH monitoring on the SCell; 5> PDCCH monitoring for the SCell; 5> GC-PDCCH monitoring on the CFR associated with the SCell; 5> GC-PDCCH monitoring for the CFR associated with the
- firstActiveDownlinkBWP-Id is set to dormant BWP: 4> stop the bwp-InactivityTimer of this Serving Cell, if running. 4> stop the CFR-InactivityTimer of this Serving Cell, if running. 3> activate the DL BWP and UL BWP indicated by firstActiveDownlinkBWP-Id and firstActiveUplinkBWP-Id respectively. 3> activate the CFR associated with the DL BWP indicated by firstActiveDownlinkBWP-Id .
- the MAC entity of the UE performs the following operations: - The SCell is set to an active state by the sCellState parameter, or a SCell activation / deactivation MAC CE indicating SCell activation is received Case: SCell activation/deactivation If the corresponding SCell is deactivated before MAC CE reception, or if the sCellState parameter is set to active in the SCell settings:
- first active DL BWP identification information eg, firstActiveDownlinkBWP-Id
- SCell is activated according to MAC CE activation timing and direct SCell activation timing (ie, normal SCell operation is applied )
- the following operations are performed including: monitoring the GC-PDCCH on the CFR associated with the SCell; GC-PDCCH is monitored for CFR associated with SCell.
- initial active DL BWP identification information is set to doment BWP: If in operation, the bwp-InactivityTimer of the corresponding serving cell is stopped, or if in operation, the CFR-InactivityTimer of the corresponding serving cell is stopped.
- - PDCCH indicates a group common PDSCH resource (ie, group common downlink allocation) on an activated SCell; or when a MAC PDU is received on a group common SPS PDSCH; The sCellDeactivationTimer associated with the corresponding SCell is restarted.
- group common PDSCH resource ie, group common downlink allocation
- This embodiment relates to a data inactivity timer (eg, dataInactivityTimer) based operation of a terminal receiving group common transmission.
- the data inactivity timer may correspond to a timer related to RRC release or transition from an RRC connected state to an RRC idle/inactive state.
- the UE may start or restart dataInactivityTimer. If dataInactivityTimer expires, the MAC entity of the UE may report the expiration of the corresponding timer to a higher layer (eg, RRC entity). In the terminal in RRC_CONNECTED mode, the RRC entity may release the RRC connection and switch/transition to RRC_IDLE mode or RRL_INACTIVE mode according to the expiration report of dataInactivityTimer. When the RRC_INACTIVE terminal receives a dataInactivityTimer expiration report, it may switch/transition to RRC_IDLE mode according to this report.
- a higher layer eg, RRC entity
- an RRC_CONNECTED or RRC_INACTIVE UE may start or restart dataInactivityTimer only when receiving an MTCH MAC SDU for a specific G-RNTI.
- DataInactivityTimer may not be started or restarted when MAC SDU of MTCH for another G-RNTI is received.
- the specific G-RNTI(s) can be configured by the base station for the terminal.
- the RRC_CONNECTED or RRC_INACTIVE UE may start or restart the dataInactivityTimer only when receiving the MAC SDU of the MTCH for multicast.
- dataInactivityTimer may not be started or restarted.
- the RRC_CONNECTED or RRC_INACTIVE terminal may start or restart the dataInactivityTimer only when receiving the MAC SDU of the MTCH in the multicast CFR.
- dataInactivityTimer may not be started or restarted.
- the RRC_CONNECTED or RRC_INACTIVE UE may start or restart dataInactivityTimer only when receiving the MAC SDU of MTCH.
- dataInactivityTimer may not be started or restarted.
- the underlined part in the table below may correspond to a MAC entity operation that may be changed according to the present disclosure based on an operation of an existing MAC entity.
- the UE may be configured by RRC with a Data inactivity monitoring functionality, when in RRC_CONNECTED.
- RRC controls Data inactivity operation by configuring the timer dataInactivityTimer .
- the UE shall: 1> if any MAC entity receives a MAC SDU for DTCH logical channel, DCCH logical channel, or CCCH logical channel; or 1> if any MAC entity receives a MAC SDU for MTCH logical channel for multicast; or 1> if any MAC entity transmits a MAC SDU for DTCH logical channel, or DCCH logical channel: 2> start or restart dataInactivityTimer .
- the terminal when dataInactivityTimer is set, the terminal starts or restarts dataInactivityTimer when receiving a MAC SDU for an MTCH logical channel for multicast (non-broadcast) from any MAC entity.
- FIG. 10 is a diagram for explaining a signaling procedure of a network side and a terminal according to an embodiment of the present disclosure.
- 10 is a network side in a situation to which the examples of the present disclosure described above (eg, embodiments 1, 2, 3, 4, 5, 6, 7, or a combination of one or more of the detailed examples) may be applied It shows an example of signaling between (network side) and terminal (UE).
- the UE/network side is exemplary and can be applied to various devices as described with reference to FIG. 11 . 10 is for convenience of description and does not limit the scope of the present disclosure. In addition, some step(s) shown in FIG. 10 may be omitted depending on circumstances and/or settings. In addition, in the operation of the network side/UE of FIG. 10, the above-described uplink transmission/reception operation may be referred to or used.
- the network side may be one base station including a plurality of TRPs, or may be one cell including a plurality of TRPs.
- the network side may include a plurality of remote radio heads (RRHs)/remote radio units (RRUs).
- RRHs remote radio heads
- RRUs remote radio units
- an ideal/non-ideal backhaul may be established between TRP 1 and TRP 2 constituting the network side.
- RRHs remote radio heads
- RRUs remote radio units
- TRP refers to a panel, an antenna array, and a cell (eg, macro cell/small cell/ It may be replaced with expressions such as a pico cell, etc.), a transmission point (TP), a base station (base station, gNB, etc.) and may be applied.
- TRPs may be classified according to information (eg, CORESET index, ID) on the CORESET group (or CORESET pool).
- CORESET groups or CORESET pools
- Configuration of such a CORESET group may be performed through higher layer signaling (eg, RRC signaling, etc.).
- a base station may mean a generic term for an object that transmits and receives data with a terminal.
- the base station may be a concept including one or more transmission points (TPs), one or more transmission and reception points (TRPs), and the like.
- the TP and/or the TRP may include a panel of a base station, a transmission and reception unit, and the like.
- the terminal may enter the RRC_CONNECTED mode and report a message indicating one or more interested MBS services to the network side (S105).
- the terminal may transmit the message to the network side through at least one of UCI, MAC Control Element (CE), and RRC message.
- the MBS service of interest in the message may mean one of TMGI or G-RNTI listed in the DL message received from the network side.
- the DL message may be a service availability message listing TMGI #1, TMGI #3, TMGI #5, and TMGI #10. If the terminal is interested in TMGI #5, the terminal may indicate the order of TMGI #5 in the message. That is, the terminal may report '3' to the network side.
- the DL message may be a service availability message listing G-RNTI #1, G-RNTI #3, G-RNTI #5, and G-RNTI #10. If the UE is interested in G-RNTI #10, the UE may indicate the order of G-RNTI #10 in the message. That is, the terminal may report '4' to the network side.
- the operation of transmitting the message from the UE (100 or 200 in FIG. 11) to the network side (200 or 100 in FIG. 11) in step S105 described above can be implemented by the device of FIG. 11 to be described below.
- one or more processors 102 may control one or more transceivers 106 and/or one or more memories 104 to transmit the message, and the one or more transceivers 106 may transmit the message to the network side.
- the one or more transceivers 106 may transmit the message to the network side.
- the network side may transmit configuration information to the terminal through an RRC message (S110).
- the configuration information includes common frequency resource (CFR) configuration information, one or more group common PDSCH configuration information including TCI status for one or more G-RNTI values, and TCI status for one or more G-RNTI values.
- CFR common frequency resource
- Search space setting information may be included.
- the RRC message may be a group common message transmitted through a PTM Multicast Control Channel (MCCH) or a UE-specific message transmitted through a UE-specific Dedicated Control Channel (DCCH).
- MCCH PTM Multicast Control Channel
- DCCH UE-specific Dedicated Control Channel
- CFR may include DL CFR and UL CFR.
- one DL CFR may provide a group common PDCCH and a group common PDSCH transmission resource for MBS transmission and reception.
- One UL CFR may provide HARQ-ACK PUCCH resources for group common PDSCH reception.
- One CFR may be one MBS-specific BWP or one UE-specific BWP. Additionally or alternatively, one or multiple CFRs may be configured within one UE-specific BWP.
- One CFR may have a connection relationship with one UE-specific BWP.
- the UE may be set to at least a G-RNTI value for each MBS CFR or each serving cell.
- GC-CS-RNTI may be set/used for activation, retransmission or release of one or more group common SPS configurations.
- the UE uses the CS-RNTI to activate, retransmit, or release one or more group common SPS configurations.
- RNTI can be used.
- the network side may associate a TMGI list or a G-RNTI list with one GC-CS-RNTI value. At this time, the network side may provide a TMGI list or a G-RNTI list associated with the GC-CS-RNTI value.
- configuration information (eg, 'PDSCH-config') of each PDSCH may be configured as shown in Table 9 with minimum information elements for multicast and/or broadcast.
- PDSCH-Config :: SEQUENCE ⁇ dataScramblingIdentityPDSCH INTEGER (0..1023) OPTIONAL, -- Need S dmrs-DownlinkForPDSCH-MappingTypeA SetupRelease ⁇ DMRS-DownlinkConfig ⁇ OPTIONAL, -- Need M dmrs-DownlinkForPDSCH-MappingTypeB SetupRelease ⁇ DMRS-DownlinkConfig ⁇ OPTIONAL, -- Need M tci-StatesToAddModList SEQUENCE (SIZE(1..maxNrofTCI-States)) OF TCI-State OPTIONAL, -- Need N tci-StatesToReleaseList SEQUENCE (SIZE(1..maxNrofTCI-States)) OF TCI-StateId OPTIONAL, -- Need N vrb-ToPRB-Interleaver ENUMERATED ⁇ n2, n4 ⁇ OPTIONAL, -- Need S resourceAl
- an operation in which the UE ( 100 or 200 in FIG. 11 ) receives the setting information from the network side ( 200 or 100 in FIG. 11 ) in step S110 may be implemented by the device of FIG. 11 to be described below.
- one or more processors 102 may control one or more transceivers 106 and/or one or more memories 104 to receive the configuration information, and the one or more transceivers 106 may receive the configuration information from the network side.
- the one or more transceivers 106 may receive the configuration information from the network side.
- the terminal may receive control information from the network side (S115). For example, the terminal may receive downlink control information (DCI) for scheduling/activating/releasing uplink/downlink from the network side.
- DCI downlink control information
- the terminal monitors the PDCCH in the SS (search space) set in the set CFR, thereby CRC-scrambled DCI with G-RNTI or G (group)-CS (configured scheduling)-RNTI.
- G-RNTI G (group)-CS (configured scheduling)-RNTI.
- an operation in which the UE (100 or 200 in FIG. 11 ) in step S115 receives the control information from the network side (200 or 100 in FIG. 11 ) may be implemented by the device of FIG. 11 to be described below.
- one or more processors 102 may control one or more transceivers 106 and/or one or more memories 104 to receive the control information, and the one or more transceivers 106 may receive the control information from the network side.
- the terminal may receive TB from the network side (S120).
- the network side is associated with the MTCH of the MRB for the MBS service, or associated with the TMGI of the MBS service, or a short A data unit for the SPS PDSCH case associated with the ID may be included, or a TB associated with the G-RNTI mapped to the MBS service may be configured and transmitted to the UE according to service-to-resource mapping.
- MBS radio bearer MBS radio bearer
- the network side may transmit DCI to the UE through the PDCCH.
- the corresponding DCI may be CRC scrambled by G-RNTI, G-CS-RNTI, or CS-RNTI.
- the PDCCH may be implemented as a group common PDCCH or a UE-specific PDCCH.
- the DCI is an identifier for a DCI format, a carrier indicator, a bandwidth part indicator, a frequency domain resource assignment, a time domain resource assignment, a VRB-to-PRB mapping, and a PRB bundling size.
- indicator, rate matching indicator, ZP CSI-RS trigger, MCS, NDI, RV, HARQ process number, downlink allocation index, scheduled TPC command for PUCCH, PUCCH resource indicator, PDSCH-to-HARQ_feedback timing indicator It may include at least one of an antenna port, transmission configuration instruction, SRS request, DMRS sequence initialization, and priority indicator.
- the network side can send one or more information to the MBS service identified by TMGI or G-RNTI or GC-CS-RNTI.
- Service-resource mapping may be provided to the terminal.
- the data of the MBS service can be carried over the multicast traffic logical channel, that is, the MBS radio bearer (MRB) of the MTCH associated with the MBS service.
- the RRC message may be a group common message transmitted through a PTM Multicast Control Channel (MCCH) or a UE-specific message transmitted through a UE-specific Dedicated Control Channel (DCCH).
- the DCI scheduling PDSCH carrying MBS service data may also indicate one or more of a short ID, MTCH ID, MRB ID, G-RNTI value and TMGI value for MBS service.
- the UE When the UE receives the DCI scrambled by the G-RNTI to be received, the UE bases the mapping between the MBS service indicated in the DCI and the HPN and/or the mapping between the MBS service indicated in the DCI and the short ID(s). Thus, it is possible to determine the MBS service(s) associated with one or more of the short ID, MTCH ID, MRB ID, G-RNTI value, and TMGI value for each PDSCH opportunity.
- the UE can receive PDSCH transmission scheduled by DCI. If the UE is not interested in the determined MBS service(s), the UE may not receive PDSCH transmission scheduled by DCI.
- the operation in which the UE (100 or 200 in FIG. 11) in step S120 receives the TB from the network side (200 or 100 in FIG. 11) can be implemented by the device of FIG. 11 to be described below.
- one or more processors 102 may control one or more transceivers 106 and/or one or more memories 104 to receive the TB, and the one or more transceivers 106 may receive the TB from the network side. can do.
- the UE may transmit the HARQ-ACK through the PUCCH after receiving the PDSCH scheduled by the DCI (S125). That is, according to the decoding state of the PDSCH transmission, the terminal may transmit HARQ feedback to the network side.
- the group common DCI may indicate a single PUCCH resource indicator and a single PDSCH-to-HARQ_feedback timing indicator for at least ACK/NACK-based HARQ-ACK.
- UE-specific PUCCH resource allocation for HARQ-ACK based on ACK/NACK for group common DCI other UEs in the corresponding group (unless 'PUCCH-config' for multicast is configured) use multicast or At least different values of 'PUCCH-Resource' and 'dl-DataToUL-ACK' may be set in 'PUCCH-config' dedicated to a terminal for unicast.
- Different PUCCH resources may be allocated to different UEs by the same PUCCH resource indicator and the same PDSCH-to-HARQ_feedback timing indicator of the group common DCI.
- the PUCCH resource indicator and PDSCH-to-HARQ_feedback timing indicator in the UE-specific DCI can be interpreted based on 'PUCCH-config' for unicast regardless of whether 'PUCCH-config' for multicast is set.
- the PUCCH Resource Indicator may be indicated by a group common DCI as will be described later.
- a UE-specific PRI list may be included in DCI (option 1A-1).
- Each PRI in the list indicates an entry corresponding to the candidate 'pucch-ResourceId' value of 'PUCCH-config' for allocation of the same PUCCH resource or different PUCCH resources to different terminals of the group receiving the same DCI.
- Different PRIs of DCI may indicate different entries of 'PUCCH-config'.
- the candidate 'pucch-ResourceId' value may be set by RRC, and at least in multicast 'PUCCH-config', another 'pucch-ResourceId' value may be set for other terminals of the same group.
- a group common PRI may be included in the DCI (option 1A-2).
- a single group common PRI may indicate a specific entry for a candidate 'pucch-ResourceId' value in UE-specific 'PUCCH-config' for the same or different PUCCH resource allocation for all UEs in the group.
- the candidate 'pucch-ResourceId' value may be set by RRC. At least in 'PUCCH-config' for multicast, different 'pucch-ResourceId' values can be set for different terminals of the same group.
- the UE determines that the PRI of the group common DCI is a candidate of 'PUCCH-config' for multicast. It can be assumed that it indicates an entry corresponding to the pucch-ResourceId' value.
- the UE sets the PRI of the group common DCI to 'PUCCH-config' for unicast. It can be assumed to point to a corresponding entry for the candidate 'pucch-ResourceId' value.
- K1 (PDSCH-to-HARQ_feedback timing indicator) may be indicated by a group common DCI as will be described later.
- a list of UE-specific K1 values may be included in DCI (option 1B-1).
- Each K1 in the list may indicate the same UL slot or a different UL (sub)slot for other terminals in the group.
- K1 values may be assigned to different terminals. That is, a value K1 may be assigned to device 1, a value K2 may be assigned to device 2, and a value K3 may be assigned to device 3.
- a value of K1 may be shared by several terminals.
- device 1 and device 2 may share a value of K1
- device 3 and device 4 may share a value of K2.
- one K1 value may be a reference, and another K1 value may be assigned based on the reference.
- ⁇ K1_ref, list of K1_offset ⁇ may be indicated in DCI.
- device 1 may use K1_ref
- device 2 may use K1_ref + K1_offest
- device 3 may use K1_ref + K1_offest2.
- a group common K1 value may be included in DCI (option 1B-2).
- a single K1 value may indicate a corresponding entry for a candidate 'dl-DataToUL-ACK' value in the terminal-specific 'PUCCH-config' for the same or different PUCCH resource allocation for all terminals in a group receiving DCI. there is. This may be applied when the DCI format is set in the UE-specific 'PUCCH-config' for the K1 value.
- the candidate 'dl-DataToUL-ACK' value is set by RRC, and may be set differently for different terminals of the same group, at least in 'PUCCH-config' for multicast.
- the UE determines that the K1 value of the group common DCI is 'PUCCH for multicast'. It can be assumed that -config' indicates the corresponding entry for the candidate 'dl-DataToUL-ACK' value.
- 'PUCCH-config' for multicast when 'PUCCH-config' for multicast is not configured for HARQ-ACK for grouping a common PDSCH scheduled by a group common DCI, the UE determines that the K1 value of the group common DCI is for unicast. It can be assumed that 'PUCCH-config' indicates an entry corresponding to the candidate 'dl-DataToUL-ACK' value.
- the UE when receiving a group common DCI scrambled by G-RNTI and/or a UE-specific DCI scrambled by CRC-RNTI, 'PUCCH-config' for multicast and/or 'PUCCH-config' for unicast
- the Type-1 HARQ-ACK codebook is set for config', the UE configures Time Domain Resource Allocation (TDRA) to provide a common PDSCH scheduled by a group common DCI and/or a UE-specific PDSCH scheduled by a UE-specific DCI.
- TDRA Time Domain Resource Allocation
- a type-1 HARQ-ACK codebook for HARQ-ACK(s) can be generated for grouping.
- the UE may transmit HARQ NACK to the base station through PUCCH resources in the configured UL CFR.
- the UE can transmit HARQ-ACK on other PDSCH transmissions such as unicast SPS PDSCH, dynamic unicast PDSCH, PTP retransmission and/or dynamic group common PDSCH.
- PDSCH transmissions such as unicast SPS PDSCH, dynamic unicast PDSCH, PTP retransmission and/or dynamic group common PDSCH.
- the terminal may configure a codebook based on one or more of the above options.
- the UE may use NACK-only based HARQ-ACK based NACK based on the measured RSRP of the serving cell. If the measured RSRP is higher than the threshold value, NACK-only based HARQ-ACK may be transmitted through the group common PUCCH resource indicated by the PRI of DCI. If the measured RSRP is lower than the threshold, NACK-only based HARQ-ACK may be changed to ACK/NACK based HARQ-ACK on UE-specific PUCCH resources indicated by PRI of DCI.
- each 'pdsch-AggregationFactor' It may be repeated for the Nth HARQ transmission of TB within each symbol allocation between consecutive slots or between each 'repeat_number' consecutive slots.
- an operation in which the UE (100 or 200 in FIG. 11) transmits the HARQ-ACK from the network side (200 or 100 in FIG. 11) in step S125 described above is implemented by the device of FIG. 11 to be described below. It can be.
- one or more processors 102 may control one or more transceivers 106 and/or one or more memories 104 to transmit the HARQ-ACK, and the one or more transceivers 106 may transmit the HARQ-ACK from the network side.
- -ACK can be sent.
- the network side receiving the HARQ NACK in the TCI state may retransmit the PDCCH and the PDSCH using the TCI state in the DL CFR configured for TB retransmission (S130).
- the UE may monitor the group common and/or UE specific PDCCH using the TCI state for the search space configured in the DL CFR to receive the TB retransmission.
- the network side may retransmit the TB to one of the terminals in the group by means of a terminal-specific PDCCH. However, since the other terminal successfully received the TB, it may not receive the retransmission of the TB.
- the UE may receive the PDSCH scheduled by the DCI of the PDCCH. If the UE successfully decodes the TB in the PDSCH, the UE decodes the TB based on the mapping between the MBS service indicated by the DCI and the HARQ process number (HPN) and/or the mapping between the MBS service indicated by the DCI and the short ID (s) may be considered to be associated with a short ID of MTCH, MRB, TMGI, G-RNTI and/or MBS service.
- HPN HARQ process number
- s short ID
- the UE may transmit HARQ ACK to the network side through PUCCH resources in the UL CFR configured according to the above-described procedure.
- the UE can transmit HARQ-ACK on other PDSCH transmissions such as unicast SPS PDSCH, dynamic unicast PDSCH, PTP retransmission and/or dynamic group common PDSCH.
- the terminal may configure a codebook based on one or more of the above-described options/embodiments.
- an operation in which the UE (100 or 200 in FIG. 11 ) in step S130 receives TB retransmission from the network side (200 or 100 in FIG. 11 ) can be implemented by the device of FIG. 11 to be described below.
- one or more processors 102 may control one or more transceivers 106 and/or one or more memories 104 to receive the TB retransmission, and the one or more transceivers 106 may transmit the TB retransmission from the network side.
- the UE 100 or 200 in FIG. 11
- step S130 receives TB retransmission from the network side (200 or 100 in FIG. 11 )
- the device of FIG. 11 to be described below.
- one or more processors 102 may control one or more transceivers 106 and/or one or more memories 104 to receive the TB retransmission, and the one or more transceivers 106 may transmit the TB retransmission from the network side.
- FIG. 11 is a diagram illustrating a block configuration of a wireless communication device according to an embodiment of the present disclosure.
- the first wireless device 100 and the second wireless device 200 may transmit and receive radio signals through various radio access technologies (eg, LTE and NR).
- various radio access technologies eg, LTE and NR.
- the first wireless device 100 includes one or more processors 102 and one or more memories 104, and may additionally include one or more transceivers 106 and/or one or more antennas 108.
- Processor 102 controls memory 104 and/or transceiver 106 and may be configured to implement the descriptions, functions, procedures, suggestions, methods and/or operational flow diagrams contained in this disclosure.
- the processor 102 may process information in the memory 104 to generate first information/signal, and transmit a radio signal including the first information/signal through the transceiver 106.
- the processor 102 may receive a radio signal including the second information/signal through the transceiver 106, and then store information obtained from signal processing of the second information/signal in the memory 104.
- the memory 104 may be connected to the processor 102 and may store various information related to the operation of the processor 102 .
- memory 104 may be used to perform some or all of the processes controlled by processor 102 or to perform the descriptions, functions, procedures, suggestions, methods, and/or flowcharts of operations contained in this disclosure. It may store software code including instructions.
- the processor 102 and memory 104 may be part of a communication modem/circuit/chip designed to implement a wireless communication technology (eg, LTE, NR).
- the transceiver 106 may be coupled to the processor 102 and may transmit and/or receive wireless signals via one or more antennas 108 .
- the transceiver 106 may include a transmitter and/or a receiver.
- the transceiver 106 may be used interchangeably with a radio frequency (RF) unit.
- a wireless device may mean a communication modem/circuit/chip.
- the second wireless device 200 includes one or more processors 202, one or more memories 204, and may further include one or more transceivers 206 and/or one or more antennas 208.
- Processor 202 controls memory 204 and/or transceiver 206 and may be configured to implement the descriptions, functions, procedures, suggestions, methods and/or operational flow diagrams contained in this disclosure.
- the processor 202 may process information in the memory 204 to generate third information/signal, and transmit a radio signal including the third information/signal through the transceiver 206.
- the processor 202 may receive a radio signal including the fourth information/signal through the transceiver 206 and store information obtained from signal processing of the fourth information/signal in the memory 204 .
- the memory 204 may be connected to the processor 202 and may store various information related to the operation of the processor 202 .
- memory 204 may be used to perform some or all of the processes controlled by processor 202 or to perform the descriptions, functions, procedures, suggestions, methods, and/or flowcharts of operations contained in this disclosure. It may store software code including instructions.
- the processor 202 and memory 204 may be part of a communication modem/circuit/chip designed to implement a wireless communication technology (eg, LTE, NR).
- the transceiver 206 may be coupled to the processor 202 and may transmit and/or receive wireless signals via one or more antennas 208 .
- the transceiver 206 may include a transmitter and/or a receiver.
- the transceiver 206 may be used interchangeably with an RF unit.
- a wireless device may mean a communication modem/circuit/chip.
- one or more protocol layers may be implemented by one or more processors 102, 202.
- one or more processors 102, 202 may implement one or more layers (eg, functional layers such as PHY, MAC, RLC, PDCP, RRC, SDAP).
- One or more processors ( 102 , 202 ) may implement one or more Protocol Data Units (PDUs) and/or one or more Service Data Units (SDUs) in accordance with the descriptions, functions, procedures, proposals, methods and/or operational flow charts contained in this disclosure.
- PDUs Protocol Data Units
- SDUs Service Data Units
- processors 102, 202 may generate messages, control information, data or information according to the descriptions, functions, procedures, suggestions, methods and/or operational flow diagrams contained in this disclosure.
- One or more processors 102, 202 may process PDUs, SDUs, messages, control information, data or signals containing information (e.g., baseband signals) according to the functions, procedures, proposals and/or methods disclosed herein. generated and provided to one or more transceivers (106, 206).
- One or more processors 102, 202 may receive signals (eg, baseband signals) from one or more transceivers 106, 206, and the descriptions, functions, procedures, suggestions, methods, and/or Alternatively, PDUs, SDUs, messages, control information, data or information may be obtained according to operation flowcharts.
- signals eg, baseband signals
- PDUs, SDUs, messages, control information, data or information may be obtained according to operation flowcharts.
- One or more processors 102, 202 may be referred to as a controller, microcontroller, microprocessor or microcomputer.
- One or more processors 102, 202 may be implemented by hardware, firmware, software, or a combination thereof.
- ASICs Application Specific Integrated Circuits
- DSPs Digital Signal Processors
- DSPDs Digital Signal Processing Devices
- PLDs Programmable Logic Devices
- FPGAs Field Programmable Gate Arrays
- Firmware or software configured to perform the descriptions, functions, procedures, suggestions, methods and/or operational flow diagrams contained in this disclosure may be included in one or more processors 102, 202 or stored in one or more memories 104, 204. It may be driven by one or more processors 102, 202.
- the descriptions, functions, procedures, suggestions, methods and/or operational flow diagrams contained in this disclosure may be implemented using firmware or software in the form of codes, instructions and/or sets of instructions.
- One or more memories 104, 204 may be coupled with one or more processors 102, 202 and may store various types of data, signals, messages, information, programs, codes, instructions and/or instructions.
- One or more memories 104, 204 may be comprised of ROM, RAM, EPROM, flash memory, hard drives, registers, cache memory, computer readable storage media, and/or combinations thereof.
- One or more memories 104, 204 may be located internally and/or external to one or more processors 102, 202. Additionally, one or more memories 104, 204 may be coupled to one or more processors 102, 202 through various technologies, such as wired or wireless connections.
- One or more transceivers 106, 206 may transmit user data, control information, radio signals/channels, etc., as referred to in the methods and/or operational flow charts of this disclosure, to one or more other devices.
- One or more transceivers 106, 206 may receive from one or more other devices user data, control information, radio signals/channels, etc. referred to in descriptions, functions, procedures, proposals, methods and/or operational flow charts, etc. contained in this disclosure.
- one or more transceivers 106 and 206 may be connected to one or more processors 102 and 202 and transmit and receive wireless signals.
- one or more processors 102, 202 may control one or more transceivers 106, 206 to transmit user data, control information, or radio signals to one or more other devices. Additionally, one or more processors 102, 202 may control one or more transceivers 106, 206 to receive user data, control information, or radio signals from one or more other devices. In addition, one or more transceivers (106, 206) can be coupled with one or more antennas (108, 208), one or more transceivers (106, 206) via one or more antennas (108, 208), as described herein, It can be set to transmit and receive user data, control information, radio signals/channels, etc. mentioned in functions, procedures, proposals, methods and/or operational flowcharts.
- one or more antennas may be a plurality of physical antennas or a plurality of logical antennas (eg, antenna ports).
- One or more transceivers (106, 206) convert the received radio signals/channels from RF band signals in order to process the received user data, control information, radio signals/channels, etc. using one or more processors (102, 202). It can be converted into a baseband signal.
- One or more transceivers 106 and 206 may convert user data, control information, and radio signals/channels processed by one or more processors 102 and 202 from baseband signals to RF band signals.
- one or more of the transceivers 106, 206 may include (analog) oscillators and/or filters.
- the scope of the present disclosure is software or machine-executable instructions (eg, operating systems, applications, firmware, programs, etc.) that cause operations in accordance with the methods of various embodiments to be executed on a device or computer, and such software or It includes a non-transitory computer-readable medium in which instructions and the like are stored and executable on a device or computer. Instructions that may be used to program a processing system that performs the features described in this disclosure may be stored on/in a storage medium or computer-readable storage medium and may be viewed using a computer program product that includes such storage medium. Features described in the disclosure may be implemented.
- the storage medium may include, but is not limited to, high speed random access memory such as DRAM, SRAM, DDR RAM or other random access solid state memory devices, one or more magnetic disk storage devices, optical disk storage devices, flash memory devices, or It may include non-volatile memory, such as other non-volatile solid state storage devices.
- the memory optionally includes one or more storage devices located remotely from the processor(s).
- the memory, or alternatively, the non-volatile memory device(s) within the memory includes non-transitory computer readable storage media.
- Features described in this disclosure may be stored on any one of the machine readable media to control hardware of a processing system and to allow the processing system to interact with other mechanisms that utilize results according to embodiments of the present disclosure. It may be integrated into software and/or firmware.
- Such software or firmware may include, but is not limited to, application code, device drivers, operating systems, and execution environments/containers.
- the wireless communication technology implemented in the wireless devices 100 and 200 of the present specification may include Narrowband Internet of Things for low power communication as well as LTE, NR, and 6G.
- NB-IoT technology may be an example of LPWAN (Low Power Wide Area Network) technology, and may be implemented in standards such as LTE Cat NB1 and / or LTE Cat NB2. no.
- the wireless communication technology implemented in the wireless devices 100 and 200 of the present specification may perform communication based on LTE-M technology.
- LTE-M technology may be an example of LPWAN technology, and may be called various names such as eMTC (enhanced machine type communication).
- LTE-M technologies are 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-BL (non-Bandwidth Limited), 5) LTE-MTC, 6) LTE Machine Type Communication, and/or 7) It may be implemented in at least one of various standards such as LTE M, and is not limited to the above-mentioned names.
- the wireless communication technology implemented in the wireless devices 100 and 200 of the present specification includes at least one of ZigBee, Bluetooth, and Low Power Wide Area Network (LPWAN) considering low power communication. It may include any one, and is not limited to the above-mentioned names.
- ZigBee technology can generate personal area networks (PANs) related to small/low-power digital communication based on various standards such as IEEE 802.15.4, and can be called various names.
- PANs personal area networks
- the method proposed in the present disclosure has been described focusing on examples applied to 3GPP LTE/LTE-A and 5G systems, but can be applied to various wireless communication systems other than 3GPP LTE/LTE-A and 5G systems.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
| μ | Δf=2μ·15 [kHz] | CP |
| 0 | 15 | 일반(Normal) |
| 1 | 30 | 일반 |
| 2 | 60 | 일반, 확장(Extended) |
| 3 | 120 | 일반 |
| 4 | 240 | 일반 |
| 주파수 범위 지정(Frequency Range designation) | 해당 주파수 범위(Corresponding frequency range) | 서브캐리어 간격(Subcarrier Spacing) |
| FR1 | 410MHz - 7125MHz | 15, 30, 60kHz |
| FR2 | 24250MHz - 52600MHz | 60, 120, 240kHz |
| μ | Nsymb slot | Nslot frame,μ | Nslot subframe,μ |
| 0 | 14 | 10 | 1 |
| 1 | 14 | 20 | 2 |
| 2 | 14 | 40 | 4 |
| 3 | 14 | 80 | 8 |
| 4 | 14 | 160 | 16 |
| μ | Nsymb slot | Nslot frame,μ | Nslot subframe,μ |
| 2 | 12 | 40 | 4 |
| DCI 포맷 | 활용 |
| 0_0 | 하나의 셀 내 PUSCH의 스케줄링 |
| 0_1 | 하나의 셀 내 하나 또는 다중 PUSCH의 스케줄링, 또는 UE에게 셀 그룹(CG: cell group) 하향링크 피드백 정보의 지시 |
| 0_2 | 하나의 셀 내 PUSCH의 스케줄링 |
| 1_0 | 하나의 DL 셀 내 PDSCH의 스케줄링 |
| 1_1 | 하나의 셀 내 PDSCH의 스케줄링 |
| 1_2 | 하나의 셀 내 PDSCH의 스케줄링 |
| The BWP switching for a Serving Cell is used to activate an inactive BWP and deactivate an active BWP at a time. The BWP switching is controlled by the PDCCH indicating a downlink assignment or an uplink grant, by the bwp-InactivityTimer, by RRC signalling, or by the MAC entity itself upon initiation of Random Access procedure or upon detection of consistent LBT failure on SpCell. Upon RRC (re-)configuration of firstActiveDownlinkBWP-Id and/or firstActiveUplinkBWP-Id for SpCell or activation of an SCell, the DL BWP and/or UL BWP indicated by firstActiveDownlinkBWP-Id and/or firstActiveUplinkBWP-Id respectively is active without receiving PDCCH indicating a downlink assignment or an uplink grant. The active BWP for a Serving Cell is indicated by either RRC or PDCCH. For unpaired spectrum, a DL BWP is paired with a UL BWP, and BWP switching is common for both UL and DL. For each SCell a dormant BWP may be configured with dormantBWP-Id by RRC signalling. Entering or leaving dormant BWP for SCells is done by BWP switching per SCell or per dormancy SCell group based on instruction from PDCCH. The dormancy SCell group configurations are configured by RRC signalling. Upon reception of the PDCCH indicating leaving dormant BWP, the DL BWP indicated by firstOutsideActiveTimeBWP-Id or by firstWithinActiveTimeBWP-Id is activated. Upon reception of the PDCCH indicating entering dormant BWP, the DL BWP indicated by dormantBWP-Id is activated. The dormant BWP configuration for SpCell or PUCCH SCell is not supported. For each activated Serving Cell configured with a BWP, the MAC entity shall: 1> if a BWP is activated and the active DL BWP for the Serving Cell is not the dormant BWP: 2> transmit on UL-SCH on the BWP; 2> transmit on RACH on the BWP, if PRACH occasions are configured; 2> monitor the PDCCH on the BWP; 2> monitor the GC-PDCCH on CFR associated with the BWP; 2> transmit PUCCH on the BWP, if configured; 2> report CSI for the BWP; 2> transmit SRS on the BWP, if configured; 2> receive DL-SCH on the BWP and CFR associated with the BWP; 2> receive GC-PDSCH on CFR associated with the BWP; 2> (re-)initialize any suspended configured uplink grants of configured grant Type 1 on the active BWP according to the stored configuration, if any, and to start in the symbol according to specific rules; 2> if lbt-FailureRecoveryConfig is configured: 3> stop the lbt-FailureDetectionTimer, if running; 3> set LBT_COUNTER to 0; 3> monitor LBT failure indications from lower layers. 1> if a BWP is activated and the active DL BWP for the Serving Cell is dormant BWP: 2> stop the bwp-InactivityTimer of this Serving Cell, if running. 2> stop the CFR-InactivityTimer of this Serving Cell, if running. 2> not monitor the PDCCH on the BWP; 2> not monitor the PDCCH for the BWP; 2> not monitor the GC-PDCCH on CFR associated with the BWP; 2> not receive DL-SCH on the BWP and CFR associated with the BWP; 2> not receive GC-PDSCH on CFR associated with the BWP; 2> not report CSI on the BWP, report CSI except aperiodic CSI for the BWP; 2> not transmit SRS on the BWP; 2> not transmit on UL-SCH on the BWP; 2> not transmit on RACH on the BWP; 2> not transmit PUCCH on the BWP; 2> clear any configured downlink assignment and any configured uplink grant Type 2 associated with the SCell respectively; 2> clear any configured downlink assignment (i.e. group common SPS resources) on the CFR associated with the SCell respectively; 2> suspend any configured uplink grant Type 1 associated with the SCell; 2> if configured, perform beam failure detection and beam failure recovery for the SCell if beam failure is detected. 1> if a BWP is deactivated: 2> not transmit on UL-SCH on the BWP; 2> not transmit on RACH on the BWP; 2> not monitor the PDCCH on the BWP; 2> not monitor the GC-PDCCH on CFR associated with the BWP; 2> not transmit PUCCH on the BWP; 2> not report CSI for the BWP; 2> not transmit SRS on the BWP; 2> not receive DL-SCH on the BWP and CFR associated with the BWP; 2> not receive GC-PDSCH on CFR associated with the BWP; 2> clear any configured downlink assignment and configured uplink grant of configured grant Type 2 on the BWP; 2> clear any configured downlink assignment (i.e. group common SPS resources) on the CFR associated with the BWP; 2> suspend any configured uplink grant of configured grant Type 1 on the inactive BWP. Upon initiation of the Random Access procedure on a Serving Cell, after the selection of carrier for performing Random Access procedure, the MAC entity shall for the selected carrier of this Serving Cell: 1> if PRACH occasions are not configured for the active UL BWP: 2> switch the active UL BWP to BWP indicated by initialUplinkBWP; 2> if the Serving Cell is an SpCell: 3> switch the active DL BWP to BWP indicated by initialDownlinkBWP. 3> switch the CFR associated with the active DL BWP to the CFR associated with BWP indicated by initialDownlinkBWP . 1> else: 2> if the Serving Cell is an SpCell: 3> if the active DL BWP does not have the same bwp-Id as the active UL BWP: 4> switch the active DL BWP to the DL BWP with the same bwp-Id as the active UL BWP. 4> switch the CFR associated with the active DL BWP to the CFR associated with the DL BWP with the same bwp-Id as the active UL BWP. 1> stop the bwp-InactivityTimer associated with the active DL BWP of this Serving Cell, if running. 1> stop the CFR-InactivityTimer associated with the CFR associated with the active DL BWP of this Serving Cell, if running. 1> if the Serving Cell is SCell: 2> stop the bwp-InactivityTimer associated with the active DL BWP of SpCell, if running. 2> stop the CFR-InactivityTimer associated with the CFR associated with the active DL BWP of SpCell, if running. 1> perform the Random Access procedure on the active DL BWP of SpCell and active UL BWP of this Serving Cell. If the MAC entity receives a PDCCH for BWP switching of a Serving Cell, the MAC entity shall: 1> if there is no ongoing Random Access procedure associated with this Serving Cell; or 1> if the ongoing Random Access procedure associated with this Serving Cell is successfully completed upon reception of this PDCCH addressed to C-RNTI: 2> cancel, if any, triggered consistent LBT failure for this Serving Cell; 2> perform BWP switching to a BWP indicated by the PDCCH. 2> perform switching to the CFR associated with the BWP indicated by the PDCCH. If the MAC entity receives a PDCCH for BWP switching for a Serving Cell(s) or a dormancy SCell group(s) while a Random Access procedure associated with that Serving Cell is ongoing in the MAC entity, it is up to UE implementation whether to switch BWP or ignore the PDCCH for BWP switching, except for the PDCCH reception for BWP switching addressed to the C-RNTI for successful Random Access procedure completion in which case the UE shall perform BWP switching to a BWP indicated by the PDCCH. Upon reception of the PDCCH for BWP switching other than successful contention resolution, if the MAC entity decides to perform BWP switching, the MAC entity shall stop the ongoing Random Access procedure and initiate a Random Access procedure after performing the BWP switching; if the MAC decides to ignore the PDCCH for BWP switching, the MAC entity shall continue with the ongoing Random Access procedure on the Serving Cell. Upon reception of RRC (re-)configuration for BWP switching for a Serving Cell while a Random Access procedure associated with that Serving Cell is ongoing in the MAC entity, the MAC entity shall stop the ongoing Random Access procedure and initiate a Random Access procedure after performing the BWP switching. Upon reception of RRC (re-)configuration for BWP switching for a Serving Cell, cancel any triggered LBT failure in this Serving Cell. The MAC entity shall for each activated Serving Cell configured with bwp-InactivityTimer: 1> if the defaultDownlinkBWP-Id is configured, and the active DL BWP is not the BWP indicated by the defaultDownlinkBWP-Id, and the active DL BWP is not the BWP indicated by the dormantBWP-Id if configured; or 1> if the defaultDownlinkBWP-Id is not configured, and the active DL BWP is not the initialDownlinkBWP, and the active DL BWP is not the BWP indicated by the dormantBWP-Id if configured: 2> if a PDCCH addressed to C-RNTI or CS-RNTI indicating downlink assignment or uplink grant is received on the active BWP; or 2> if a PDCCH addressed to C-RNTI or CS-RNTI indicating downlink assignment or uplink grant is received for the active BWP; or 2> if a PDCCH addressed to G-RNTI or G-CS-RNTI indicating downlink assignment for multicast or broadcast is received on the CFR associated with the active BWP or for the CFR associated with the active BWP; or 2> if a MAC PDU is transmitted in a configured uplink grant and LBT failure indication is not received from lower layers; or 2> if a MAC PDU is received in a configured downlink assignment: 3> if there is no ongoing Random Access procedure associated with this Serving Cell; or 3> if the ongoing Random Access procedure associated with this Serving Cell is successfully completed upon reception of this PDCCH addressed to C-RNTI: 4> start or restart the bwp-InactivityTimer associated with the active DL BWP. 4> start or restart the CFR-InactivityTimer associated with the CFR associated with the active DL BWP. 2> if the bwp-InactivityTimer associated with the active DL BWP expires: 3> if the defaultDownlinkBWP-Id is configured: 4> perform BWP switching to a BWP indicated by the defaultDownlinkBWP-Id. 4> perform switching to the CFR associated with the BWP indicated by the defaultDownlinkBWP-Id . 3> else: 4> perform BWP switching to the initialDownlinkBWP. 4> perform switching to the CFR associated with the initialDownlinkBWP . NOTE: If a Random Access procedure is initiated on an SCell, both this SCell and the SpCell are associated with this Random Access procedure. 1> if a PDCCH for BWP switching is received, and the MAC entity switches the active DL BWP and the CFR associated with the active DL BWP: 2> if the defaultDownlinkBWP-Id is configured, and the MAC entity switches to the DL BWP which is not indicated by the defaultDownlinkBWP-Id and is not indicated by the dormantBWP-Id if configured; or 2> if the defaultDownlinkBWP-Id is not configured, and the MAC entity switches to the DL BWP which is not the initialDownlinkBWP and is not indicated by the dormantBWP-Id if configured: 3> start or restart the bwp-InactivityTimer associated with the active DL BWP. 3> start or restart the CFR-InactivityTimer associated with the CFR associated with the active DL BWP. |
| If the MAC entity is configured with one or more SCells, the network may activate and deactivate the configured SCells. Upon configuration of an SCell, the SCell is deactivated unless the parameter sCellState is set to activated for the SCell by upper layers. The configured SCell(s) is activated and deactivated by: - receiving the SCell Activation/Deactivation MAC CE; - configuring sCellDeactivationTimer timer per configured SCell (except the SCell configured with PUCCH, if any): the associated SCell is deactivated upon its expiry; - configuring sCellState per configured SCell: if configured, the associated SCell is activated upon SCell configuration. The MAC entity shall for each configured SCell: 1> if an SCell is configured with sCellState set to activated upon SCell configuration, or an SCell Activation/Deactivation MAC CE is received activating the SCell: 2> if the SCell was deactivated prior to receiving this SCell Activation/Deactivation MAC CE; or 2> if the SCell is configured with sCellState set to activated upon SCell configuration: 3> if firstActiveDownlinkBWP-Id is not set to dormant BWP: 4> activate the SCell according to the timing for MAC CE activation and according to the timing for direct SCell activation; i.e. apply normal SCell operation including: 5> SRS transmissions on the SCell; 5> CSI reporting for the SCell; 5> PDCCH monitoring on the SCell; 5> PDCCH monitoring for the SCell; 5> GC-PDCCH monitoring on the CFR associated with the SCell; 5> GC-PDCCH monitoring for the CFR associated with the SCell; 5> PUCCH transmissions on the SCell, if configured. 3> else (i.e. firstActiveDownlinkBWP-Id is set to dormant BWP): 4> stop the bwp-InactivityTimer of this Serving Cell, if running. 4> stop the CFR-InactivityTimer of this Serving Cell, if running. 3> activate the DL BWP and UL BWP indicated by firstActiveDownlinkBWP-Id and firstActiveUplinkBWP-Id respectively. 3> activate the CFR associated with the DL BWP indicated by firstActiveDownlinkBWP-Id . 2> start or restart the sCellDeactivationTimer associated with the SCell according to the timing for MAC CE activation and according to the timing for direct SCell activation; 2> if the active DL BWP is not the dormant BWP: 3> (re-)initialize any suspended configured uplink grants of configured grant Type 1 associated with this SCell according to the stored configuration, if any, and to start in the symbol; 3> trigger PHR. 1> else if an SCell Activation/Deactivation MAC CE is received deactivating the SCell; or 1> if the sCellDeactivationTimer associated with the activated SCell expires: 2> deactivate the SCell according to the timing; 2> stop the sCellDeactivationTimer associated with the SCell; 2> stop the bwp-InactivityTimer associated with the SCell; 2> stop the CFR-InactivityTimer associated with the CFR associated with the SCell; 2> deactivate any active BWP associated with the SCell; 2> deactivate any CFR associated with any active BWP associated with the SCell; 2> clear any configured downlink assignment and any configured uplink grant Type 2 associated with the SCell respectively; 2> clear any configured downlink assignment (i.e. any group common SPS resource) on any CFR associated with the SCell respectively; 2> clear any PUSCH resource for semi-persistent CSI reporting associated with the SCell; 2> suspend any configured uplink grant Type 1 associated with the SCell; 2> flush all HARQ buffers associated with the SCell; 2> cancel, if any, triggered consistent LBT failure for the SCell. 1> if PDCCH on the activated SCell indicates an uplink grant or downlink assignment; or 1> if PDCCH on the Serving Cell scheduling the activated SCell indicates an uplink grant or a downlink assignment for the activated SCell; or 1> if PDCCH on the activated SCell indicates an group common PDSCH resource (i.e. group common downlink assignment); or 1> if a MAC PDU is transmitted in a configured uplink grant and LBT failure indication is not received from lower layers; or 1> if a MAC PDU is received in a configured downlink assignment: 1> if a MAC PDU is received in a group common SPS PDSCH: 2> restart the sCellDeactivationTimer associated with the SCell. 1> if the SCell is deactivated: 2> not transmit SRS on the SCell; 2> not report CSI for the SCell; 2> not transmit on UL-SCH on the SCell; 2> not transmit on RACH on the SCell; 2> not monitor the PDCCH on the SCell; 2> not monitor the PDCCH for the SCell; 2> not transmit PUCCH on the SCell. HARQ feedback for the MAC PDU containing SCell Activation/Deactivation MAC CE shall not be impacted by PCell, PSCell and PUCCH SCell interruptions due to SCell activation/deactivation. When SCell is deactivated, the ongoing Random Access procedure on the SCell, if any, is aborted. |
| The UE may be configured by RRC with a Data inactivity monitoring functionality, when in RRC_CONNECTED. RRC controls Data inactivity operation by configuring the timer dataInactivityTimer. When dataInactivityTimer is configured, the UE shall: 1> if any MAC entity receives a MAC SDU for DTCH logical channel, DCCH logical channel, or CCCH logical channel; or 1> if any MAC entity receives a MAC SDU for MTCH logical channel for multicast; or 1> if any MAC entity transmits a MAC SDU for DTCH logical channel, or DCCH logical channel: 2> start or restart dataInactivityTimer. 1> if the dataInactivityTimer expires: 2> indicate the expiry of the dataInactivityTimer to upper layers. |
| PDSCH-Config ::= SEQUENCE { dataScramblingIdentityPDSCH INTEGER (0..1023) OPTIONAL, -- Need S dmrs-DownlinkForPDSCH-MappingTypeA SetupRelease { DMRS-DownlinkConfig } OPTIONAL, -- Need M dmrs-DownlinkForPDSCH-MappingTypeB SetupRelease { DMRS-DownlinkConfig } OPTIONAL, -- Need M tci-StatesToAddModList SEQUENCE (SIZE(1..maxNrofTCI-States)) OF TCI-State OPTIONAL, -- Need N tci-StatesToReleaseList SEQUENCE (SIZE(1..maxNrofTCI-States)) OF TCI-StateId OPTIONAL, -- Need N vrb-ToPRB-Interleaver ENUMERATED {n2, n4} OPTIONAL, -- Need S resourceAllocation ENUMERATED { resourceAllocationType0, resourceAllocationType1, dynamicSwitch}, pdsch-TimeDomainAllocationList SetupRelease { PDSCH-TimeDomainResourceAllocationList } OPTIONAL, -- Need M pdsch-AggregationFactor ENUMERATED { n2, n4, n8 } OPTIONAL, -- Need S rateMatchPatternToAddModList SEQUENCE (SIZE (1..maxNrofRateMatchPatterns)) OF RateMatchPattern OPTIONAL, -- Need N rateMatchPatternToReleaseList SEQUENCE (SIZE (1..maxNrofRateMatchPatterns)) OF RateMatchPatternId OPTIONAL, -- Need N rateMatchPatternGroup1 RateMatchPatternGroup OPTIONAL, -- Need R rateMatchPatternGroup2 RateMatchPatternGroup OPTIONAL, -- Need R rbg-Size ENUMERATED {config1, config2}, mcs-Table ENUMERATED {qam256, qam64LowSE} OPTIONAL, -- Need S maxNrofCodeWordsScheduledByDCI ENUMERATED {n1, n2} ... } |
Claims (15)
- 무선 통신 시스템에서 단말이 하향링크 채널을 수신하는 방법에 있어서, 상기 방법은:특정 G-RNTI(group-radio network temporary identifier)에 기초하여 물리하향링크제어채널(PDCCH)을 제 1 대역폭 부분(BWP)에서 네트워크로부터 수신하는 단계; 및상기 PDCCH에 기초하여 그룹 공통 물리하향링크공유채널(PDSCH)을 상기 네트워크로부터 수신하는 단계를 포함하고,상기 특정 G-RNTI는 제 1 타입 그룹 공통 스케줄링에 대해서 설정되거나 또는 제 2 타입 그룹 공통 스케줄링에 대해서 설정되고,제 1 비활성(inactivity) 타이머는 상기 제 1 타입 그룹 공통 스케줄링에 대해서 설정된 상기 특정 G-RNTI에 기초하여 시작 또는 재시작되는, 방법.
- 제 1 항에 있어서,상기 제 1 비활성 타이머의 만료에 기초하여 제 2 BWP로 스위칭되는, 방법.
- 제 2 항에 있어서,상기 제 1 BWP는 활성 BWP이고,상기 제 2 BWP는 초기(initial) BWP 또는 디폴트(default) BWP인, 방법.
- 제 1 항에 있어서,제 2 비활성 타이머는 상기 제 1 타입 그룹 공통 스케줄링에 관련된 MAC SDU(medium access control service data unite)에 기초하여 시작 또는 재시작되는, 방법.
- 제 4 항에 있어서,RRC 연결 상태에서 상기 제 2 비활성 타이머의 만료에 기초하여, RRC(radio resource control) 아이들(idle) 상태로의 액션이 수행되는, 방법.
- 제 1 항에 있어서,상기 PDCCH는 제 1 타입 하향링크 제어 정보(DCI) 포맷 또는 제 2 타입 DCI 포맷에 대응하고,상기 제 1 타입 DCI 포맷은, 제 1 타입 그룹 공통 스케줄링에 대해서 설정되는 상기 특정 G-RNTI에 기초하여 CRC(cyclic redundancy check) 스크램블링되고, 상기 PDSCH를 스케줄링하며,상기 제 2 타입 DCI 포맷은, 제 2 타입 그룹 공통 스케줄링에 대해서 설정되는 상기 특정 G-RNTI에 기초하여 CRC 스크램블링되고, 상기 PDSCH 수신을 스케줄링하는, 방법.
- 제 1 항에 있어서,상기 제 1 타입 그룹 공통 스케줄링은 멀티캐스트 그룹 공통 스케줄링에 해당하고,상기 제 2 타입 그룹 공통 스케줄링은 브로드캐스트 그룹 공통 스케줄링에 해당하는, 방법.
- 제 4 항에 있어서,상기 제 1 비활성 타이머는 BWP-비활성 타이머이고,상기 제 2 비활성 타이머는 데이터-비활성 타이머인, 방법.
- 제 1 항에 있어서,상기 제 1 비활성 타이머는 상기 제 2 타입 그룹 공통 스케줄링에 대해서 설정된 G-RNTI에 기초하여 시작되지 않고 재시작되지 않는, 방법.
- 제 4 항에 있어서,상기 제 2 비활성 타이머는 상기 제 2 타입 그룹 공통 스케줄링에 관련된 MAC SDU에 기초하여 시작되지 않고 재시작되지 않는, 방법.
- 무선 통신 시스템에서 하향링크 채널을 수신하는 단말에 있어서, 상기 단말은:하나 이상의 송수신기(transceiver); 및상기 하나 이상의 송수신기와 연결된 하나 이상의 프로세서를 포함하고,상기 하나 이상의 프로세서는:특정 G-RNTI(group-radio network temporary identifier)에 기초하여 물리하향링크제어채널(PDCCH)을 제 1 대역폭 부분(BWP)에서 네트워크로부터 상기 하나 이상의 송수신기를 통하여 수신하고; 및상기 PDCCH에 기초하여 그룹 공통 물리하향링크공유채널(PDSCH)을 상기 네트워크로부터 상기 하나 이상의 송수신기를 통하여 수신하도록 설정되고,상기 특정 G-RNTI는 제 1 타입 그룹 공통 스케줄링에 대해서 설정되거나 또는 제 2 타입 그룹 공통 스케줄링에 대해서 설정되고,제 1 비활성(inactivity) 타이머는 상기 제 1 타입 그룹 공통 스케줄링에 대해서 설정된 상기 특정 G-RNTI에 기초하여 시작 또는 재시작되는, 단말.
- 무선 통신 시스템에서 기지국이 하향링크 채널을 전송하는 방법에 있어서, 상기 방법은:특정 G-RNTI(group-radio network temporary identifier)에 기초하여 물리하향링크제어채널(PDCCH)을 제 1 대역폭 부분(BWP)에서 하나 이상의 단말에게 전송하는 단계; 및상기 PDCCH에 기초하여 그룹 공통 물리하향링크공유채널(PDSCH)을 상기 하나 이상의 단말에게 전송하는 단계를 포함하고,상기 특정 G-RNTI는 제 1 타입 그룹 공통 스케줄링에 대해서 설정되거나 또는 제 2 타입 그룹 공통 스케줄링에 대해서 설정되고,상기 하나 이상의 단말 중의 하나의 단말에서, 제 1 비활성(inactivity) 타이머는 상기 제 1 타입 그룹 공통 스케줄링에 대해서 설정된 상기 특정 G-RNTI에 기초하여 시작 또는 재시작되는, 방법.
- 무선 통신 시스템에서 하향링크 채널을 전송하는 기지국에 있어서, 상기 기지국은:하나 이상의 송수신기; 및상기 하나 이상의 송수신기와 연결된 하나 이상의 프로세서를 포함하고,상기 하나 이상의 프로세서는:특정 G-RNTI(group-radio network temporary identifier)에 기초하여 물리하향링크제어채널(PDCCH)을 제 1 대역폭 부분(BWP)에서 하나 이상의 단말에게 상기 하나 이상의 송수신기를 통하여 전송하고; 및상기 PDCCH에 기초하여 그룹 공통 물리하향링크공유채널(PDSCH)을 상기 하나 이상의 단말에게 상기 하나 이상의 송수신기를 통하여 전송하도록 설정되고,상기 특정 G-RNTI는 제 1 타입 그룹 공통 스케줄링에 대해서 설정되거나 또는 제 2 타입 그룹 공통 스케줄링에 대해서 설정되고,상기 하나 이상의 단말 중의 하나의 단말에서, 제 1 비활성(inactivity) 타이머는 상기 제 1 타입 그룹 공통 스케줄링에 대해서 설정된 상기 특정 G-RNTI에 기초하여 시작 또는 재시작되는, 기지국.
- 무선 통신 시스템에서 단말을 제어하도록 설정되는 프로세싱 장치에 있어서, 상기 프로세싱 장치는:하나 이상의 프로세서; 및상기 하나 이상의 프로세서에 동작 가능하게 연결되고, 상기 하나 이상의 프로세서에 의해 실행됨에 기반하여, 제 1 항 내지 제 10 항 중 어느 한 항에 따른 방법을 수행하기 위한 명령들을 저장하는 하나 이상의 컴퓨터 메모리를 포함하는, 프로세싱 장치.
- 하나 이상의 명령을 저장하는 하나 이상의 비-일시적(non-transitory) 컴퓨터 판독가능 매체로서,상기 하나 이상의 명령은 하나 이상의 프로세서에 의해서 실행되어, 무선 통신 시스템에서 장치가, 제 1 항 내지 제 10 항 중 어느 한 항에 따른 방법을 수행하도록 제어하는, 컴퓨터 판독가능 매체.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020237021615A KR102619303B1 (ko) | 2021-10-01 | 2022-09-30 | 무선 통신 시스템에서 대역폭 부분 활성화 또는 비활성화방법 및 장치 |
| CN202280066485.7A CN118044313A (zh) | 2021-10-01 | 2022-09-30 | 在无线通信系统中激活和去激活带宽部分的方法和装置 |
| EP22876965.9A EP4412375A4 (en) | 2021-10-01 | 2022-09-30 | METHOD AND DEVICE FOR ACTIVATING AND DEACTIVATING A BANDWIDTH PORTION IN A WIRELESS COMMUNICATIONS SYSTEM |
| US18/364,087 US12010669B2 (en) | 2021-10-01 | 2023-08-02 | Method and device for activating and inactivating bandwidth part in wireless communication system |
| US18/651,119 US20240284427A1 (en) | 2021-10-01 | 2024-04-30 | Method and device for activating and inactivating bandwidth part in wireless communication system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20210130953 | 2021-10-01 | ||
| KR10-2021-0130953 | 2021-10-01 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US18/364,087 Continuation US12010669B2 (en) | 2021-10-01 | 2023-08-02 | Method and device for activating and inactivating bandwidth part in wireless communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023055194A1 true WO2023055194A1 (ko) | 2023-04-06 |
Family
ID=85783266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2022/014809 Ceased WO2023055194A1 (ko) | 2021-10-01 | 2022-09-30 | 무선 통신 시스템에서 대역폭 부분 활성화 또는 비활성화 방법 및 장치 |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US12010669B2 (ko) |
| EP (1) | EP4412375A4 (ko) |
| KR (1) | KR102619303B1 (ko) |
| CN (1) | CN118044313A (ko) |
| WO (1) | WO2023055194A1 (ko) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240105401A (ko) * | 2021-11-11 | 2024-07-05 | 엘지전자 주식회사 | 무선 통신 시스템에서 통신을 수행하는 방법 및 장치 |
| US20230328743A1 (en) * | 2022-04-12 | 2023-10-12 | Qualcomm Incorporated | Multicast communication with cross-carrier scheduling |
| US12484068B2 (en) * | 2022-10-12 | 2025-11-25 | Qualcomm Incorporated | Deactivation of semi-persistent scheduling and configured grant resources during temporary bandwidth part switching |
| US12471106B2 (en) * | 2022-11-14 | 2025-11-11 | Qualcomm Incorporated | Downlink control information scheduling multiple downlink or uplink communications |
| CN119697619B (zh) * | 2025-02-25 | 2025-05-09 | 南京邮电大学 | 一种基于Lora满足室内定位系统混合业务传输的MAC层设计方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190182870A1 (en) * | 2017-12-13 | 2019-06-13 | Asustek Computer Inc. | Method and apparatus of handling bwp inactivity timer during random access procedure in a wireless communication system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX2022008390A (es) * | 2020-01-10 | 2022-08-08 | Fg innovation co ltd | Metodo y equipo de usuario para recepcion de datos de servicio de multidifusion/difusion. |
| CN113873687B (zh) * | 2020-06-30 | 2025-03-14 | 展讯通信(上海)有限公司 | 状态转换方法及链接态mtch的指示方法、装置、存储介质、终端、基站 |
| EP4118862B1 (en) * | 2020-10-16 | 2024-12-25 | Ofinno, LLC | Bandwidth part for multicast and broadcast services |
| KR20220052750A (ko) * | 2020-10-21 | 2022-04-28 | 삼성전자주식회사 | 무선 통신 시스템에서 mbs 통신을 위한 방법 및 장치 |
| KR20220135595A (ko) * | 2021-03-30 | 2022-10-07 | 삼성전자주식회사 | 무선 통신 시스템에서 서비스를 제공하는 방법 및 장치 |
-
2022
- 2022-09-30 WO PCT/KR2022/014809 patent/WO2023055194A1/ko not_active Ceased
- 2022-09-30 EP EP22876965.9A patent/EP4412375A4/en active Pending
- 2022-09-30 CN CN202280066485.7A patent/CN118044313A/zh active Pending
- 2022-09-30 KR KR1020237021615A patent/KR102619303B1/ko active Active
-
2023
- 2023-08-02 US US18/364,087 patent/US12010669B2/en active Active
-
2024
- 2024-04-30 US US18/651,119 patent/US20240284427A1/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190182870A1 (en) * | 2017-12-13 | 2019-06-13 | Asustek Computer Inc. | Method and apparatus of handling bwp inactivity timer during random access procedure in a wireless communication system |
Non-Patent Citations (5)
| Title |
|---|
| MEDIATEK INC.: "DRX scheme for NR MBS", 3GPP DRAFT; R2-2107049, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. electronic; 20210816 - 20210827, 5 August 2021 (2021-08-05), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052032236 * |
| QUALCOMM INCORPORATED: "CSI enhancement for IOT and URLLC", 3GPP DRAFT; R1-2107337, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210816 - 20210827, 7 August 2021 (2021-08-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052038289 * |
| See also references of EP4412375A4 * |
| TD TECH, CHENGDU TD TECH: "Group scheduling related questions for RRC_CONNECTED UEs", 3GPP DRAFT; R1-2109767, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20211011 - 20211019, R1-2109767, 30 September 2021 (2021-09-30), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052058696 * |
| ZTE: "Discussion on mechanisms to Support Group Scheduling for RRC_CONNECTED UEs", 3GPP DRAFT; R1-2108851, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20211011 - 20211019, 30 September 2021 (2021-09-30), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052057733 * |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102619303B1 (ko) | 2023-12-29 |
| US20230397180A1 (en) | 2023-12-07 |
| US20240284427A1 (en) | 2024-08-22 |
| EP4412375A4 (en) | 2025-01-15 |
| EP4412375A1 (en) | 2024-08-07 |
| CN118044313A (zh) | 2024-05-14 |
| KR20230113771A (ko) | 2023-08-01 |
| US12010669B2 (en) | 2024-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2023055194A1 (ko) | 무선 통신 시스템에서 대역폭 부분 활성화 또는 비활성화 방법 및 장치 | |
| WO2023287184A2 (ko) | 무선 통신 시스템에서 주파수 자원 설정 기반의 무선 신호 송수신 방법 및 장치 | |
| WO2023140679A1 (ko) | 무선 통신 시스템에서 상향링크 송수신을 수행하는 방법 및 장치 | |
| WO2021206389A1 (ko) | 무선 통신 시스템에서 빔 연계 상태 기반 상향링크/하향링크 송수신 방법 및 장치 | |
| WO2022240180A1 (ko) | 무선 통신 시스템에서 상향링크 송수신을 수행하는 방법 및 장치 | |
| WO2023055185A1 (ko) | 무선 통신 시스템에서 그룹 공통 pdsch 송수신 방법 및 장치 | |
| WO2023014138A1 (ko) | 무선 통신 시스템에서 하향링크 데이터의 그룹 공통 및 단말 특정 송신 또는 수신 방법 및 장치 | |
| WO2022240182A1 (ko) | 무선 통신 시스템에서 그룹 공통 전송을 위한 공통 주파수 자원 기반 통신 방법 및 장치 | |
| WO2023063706A1 (ko) | 무선 통신 시스템에서 랜덤 액세스 절차 수행 방법 및 장치 | |
| WO2023132714A1 (ko) | 무선 통신 시스템에서 상향링크 송수신을 수행하는 방법 및 장치 | |
| WO2023153869A1 (ko) | 무선 통신 시스템에서 하이브리드 자동 재송 요구-확인응답 정보의 송신 또는 수신 방법 및 장치 | |
| WO2022240184A1 (ko) | 무선 통신 시스템에서 그룹 공통 전송을 위한 harq 기반 송수신 방법 및 장치 | |
| WO2023146216A1 (ko) | 무선 통신 시스템에서 상향링크 송수신을 수행하는 방법 및 장치 | |
| WO2023080706A1 (ko) | 무선 통신 시스템에서 상향링크 송수신 방법 및 장치 | |
| WO2023013920A1 (ko) | 무선 통신 시스템에서 pdcch 송수신 방법 및 장치 | |
| WO2024029994A1 (en) | Method and apparatus for performing communication in wireless communication system | |
| WO2023085842A1 (ko) | 무선 통신 시스템에서 통신을 수행하는 방법 및 장치 | |
| WO2023080728A1 (ko) | 무선 통신 시스템에서 하이브리드 자동 재송 요구-확인응답 정보의 송신 또는 수신 방법 및 장치 | |
| WO2023014140A1 (ko) | 무선 통신 시스템에서 통신을 수행하는 방법 및 장치 | |
| WO2023055184A1 (ko) | 무선 통신 시스템에서 상향링크 송수신을 수행하는 방법 및 장치 | |
| WO2023153854A1 (ko) | 무선 통신 시스템에서 상향링크 송수신을 수행하는 방법 및 장치 | |
| WO2023210985A1 (ko) | 무선 통신 시스템에서 사이드링크 송수신 방법 및 장치 | |
| WO2023054943A1 (ko) | 무선 통신 시스템에서 참조 신호 송수신 방법 및 장치 | |
| WO2023080731A1 (ko) | 무선 통신 시스템에서 상향링크 송수신을 수행하는 방법 및 장치 | |
| WO2023132729A1 (ko) | 무선 통신 시스템에서 상향링크 송수신을 수행하는 방법 및 장치 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22876965 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 20237021615 Country of ref document: KR Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202280066485.7 Country of ref document: CN |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2022876965 Country of ref document: EP Effective date: 20240502 |
