WO2022215181A1 - 無線通信ノード、および、無線通信方法 - Google Patents
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Definitions
- the present disclosure relates to a wireless communication node that sets up wireless access and wireless backhaul.
- the 3rd Generation Partnership Project (3GPP) has specified the 5th generation mobile communication system (also called 5G, New Radio (NR) or Next Generation (NG)), and the next generation specification called Beyond 5G, 5G Evolution or 6G We are also proceeding with 5G, 5G Evolution or 6G We are also proceeding with 5G, 5G Evolution or 6G We are also proceeding with 5G, 5G Evolution or 6G We are also proceeding with 5G, 5G Evolution or 6G We are also proceeding with 5G, 5G Evolution or 6G
- the integrated access and backhaul integrates radio access to terminals (user equipment, UE) and radio backhaul between radio communication nodes such as radio base stations (gNBs).
- UE user equipment
- gNBs radio base stations
- an IAB node has Mobile Termination (MT), a function for connecting with parent nodes (which may be called IAB donors), and Distributed Unit (DU), a function for connecting with child nodes or UEs. ) and
- MT Mobile Termination
- DU Distributed Unit
- the radio link between the parent node and the IAB node (Link_parent), that is MT, and the radio link between the IAB node and the child node (Link_child), that is, DU use frequency division multiplexing (FDM). It is planned to support simultaneous transmission and reception using FDM.
- the network transmits resource information indicating the resource type (Hard/Soft/NA (Not Available), etc.) in the time direction and frequency direction to the IAB node.
- resource information indicating the resource type (Hard/Soft/NA (Not Available), etc.) in the time direction and frequency direction.
- TDM time division multiplexing
- FDM frequency division multiplexing
- One aspect of the present disclosure is a receiving unit (radio receiving unit 162) that receives from a network resource information indicating the type of resource allocated to a radio link with a lower node, and configures the radio link based on the resource information.
- a control unit (control unit 190), wherein the receiving unit provides the resource information indicating the types of time resources in the time direction and the types of frequency resources in the frequency direction for at least some of the time resources, or
- a wireless communication node wireless communication node 100B that receives the resource information indicating the resource type for each combination of the position in the time direction and the position in the frequency direction for at least some of the time resources.
- One aspect of the present disclosure is a receiving unit (radio receiving unit 162) that receives from a network resource information indicating the type of resource to be allocated to a radio link with a lower node, and a control for setting the radio link based on the resource information. (control unit 190), and the receiving unit provides the resource information indicating the type of time resource in the time direction and the type of frequency resource in the frequency direction for at least some of the time resources, or the time A wireless communication node (wireless communication node 100B) that receives the resource information indicating, for at least part of time resources, the type of the resource for each combination of the position in the direction and the position in the frequency direction.
- wireless communication node 100B wireless communication node 100B
- FIG. 1 is an overall schematic configuration diagram of a radio communication system 10. As shown in FIG. FIG. 2 is a diagram showing a basic configuration example of the IAB.
- FIG. 3 is a functional block configuration diagram of the wireless communication node 100A.
- FIG. 4 is a functional block configuration diagram of the wireless communication node 100B.
- FIG. 5A is a diagram illustrating an example of frequency resource usage of a DU serving cell and an MT serving cell based on Assumption 1.
- FIG. FIG. 5B is a diagram illustrating an example of frequency resource usage of a DU serving cell and an MT serving cell based on Assumption 2.
- FIG. 5C is a diagram illustrating an example of frequency resource usage of a DU serving cell and an MT serving cell based on Assumption 3.
- FIG. FIG. 6 is a diagram showing a schematic communication sequence for setting DU resources of an IAB node.
- FIG. 7A is a diagram illustrating an example of setting DU resources according to Option 1.
- FIG. 7B is a diagram illustrating an example of setting DU resources according to Option 2.
- FIG. 8 is a diagram showing an assumed case 1.
- FIG. 9 is a diagram showing an assumed case 2.
- FIG. 10 is a diagram showing cases 1 and 2.
- FIG. FIG. 11 is a diagram showing an example (Alt.1) in which the DU frequency/T-F resource type (H/S/NA) is set only when soft symbols are set.
- FIG. 1 is a diagram illustrating an example of setting DU resources according to Option 1.
- FIG. 7B is a diagram illustrating an example of setting DU resources according to Option 2.
- FIG. 8 is a diagram showing an assumed case 1.
- FIG. 9 is a diagram showing an assumed case 2.
- FIG. FIG. 10 is a diagram showing cases 1 and 2.
- FIG. 12 is a diagram showing an example (Alt.2) in which a new setting determines the time at which the DU frequency/TF resource type (H/S/NA) is set.
- FIG. 13 is a diagram showing another example.
- FIG. 14 is a diagram showing an example (case 1) of dynamic indication of availability for RBG per D/U/F resource type per slot.
- FIG. 15 is a diagram showing an example (case 2) of dynamic indication of availability for each D/U/F resource type per slot.
- FIG. 16 is a diagram showing an example in which case 1 and case 2 coexist.
- FIG. 17 is a diagram showing an example where dynamic indication of DU symbols and dynamic indication of DU frequency/T-F resources are shown for different slots.
- FIG. 18 is a diagram showing an example of the signaling structure of DCI format 2_5.
- FIG. 19 is a diagram showing an example of the hardware configuration of CU50, wireless communication nodes 100A to 100C and UE200.
- FIG. 1 is an overall schematic configuration diagram of a radio communication system 10 according to the present embodiment.
- the radio communication system 10 is a radio communication system according to 5G New Radio (NR), and is composed of a plurality of radio communication nodes and terminals.
- NR 5G New Radio
- the radio communication system 10 includes radio communication nodes 100A, 100B, and 100C, and a user terminal 200 (hereafter, UE 200).
- the wireless communication nodes 100A, 100B, and 100C can set up wireless access with the UE 200 and wireless backhaul (BH) between the wireless communication nodes. Specifically, a backhaul (transmission path) is set by a radio link between the radio communication node 100A and the radio communication node 100B, and between the radio communication node 100A and the radio communication node 100C.
- BH wireless backhaul
- IAB Integrated Access and Backhaul
- the IAB will reuse existing functions and interfaces defined for wireless access.
- Mobile-Termination MT
- gNB-DU Distributed Unit
- gNB-CU Central Unit
- UPF User Plane Function
- AMF Access and Mobility Management Function
- SMF Session Management Function
- NR Uu MT to gNB/DU
- F1, NG, X2 and N4 may be used as a baseline.
- the wireless communication node 100A is connected to NR's wireless access network (NG-RAN) and core network (Next Generation Core (NGC) or 5GC) via a wired transmission line such as fiber transport.
- NG-RAN/NGC includes Central Unit 50 (hereinafter referred to as CU50), which is a communication node.
- CU50 Central Unit 50
- NG-RAN and NGC may be simply referred to as a "network”.
- the CU50 may be configured by any one or a combination of the UPF, AMF, and SMF described above.
- CU50 may be a gNB-CU as described above.
- FIG. 2 is a diagram showing a basic configuration example of the IAB.
- the wireless communication node 100A constitutes a parent node in the IAB
- the wireless communication node 100B (and the wireless communication node 100C) constitutes an IAB node in the IAB. .
- parent node may be called a higher node in relation to the IAB node.
- parent nodes may be referred to as IAB donors.
- An IAB node may also be referred to as a subordinate node in relation to its parent node.
- a child node in the IAB is composed of other wireless communication nodes not shown in FIG.
- UE 200 may configure the child node.
- An IAB node may be referred to as an upper node in relation to its child nodes, and a child node may be referred to as a lower node in relation to the IAB node.
- a wireless link is set up between the parent node and the IAB node. Specifically, a wireless link called Link_parent is set.
- a wireless link is set between the IAB node and the child node. Specifically, a wireless link called Link_child is set.
- a wireless link set between such wireless communication nodes may be called a wireless backhaul link.
- Link_parent is composed of a downlink DL Parent BH and an uplink UL Parent BH.
- Link_child is composed of a downlink DL Child BH and an uplink UL Child BH.
- a radio link established between the UE 200 and the IAB node or parent node is called a radio access link.
- the radio link is composed of a downlink DL Access and an uplink UL Access.
- the IAB node has Mobile Termination (MT), which is the function for connecting with the parent node, and Distributed Unit (DU), which is the function for connecting with the child node (or UE200). Although omitted in FIG. 2, the parent node and child node also have MT and DU.
- MT Mobile Termination
- DU Distributed Unit
- Radio resources used by DUs include downlink (DL), uplink (UL), and flexible time-resources (D/U/F) from the perspective of DUs, which are hard, soft, or not available (H/S/ NA) are classified into any type.
- DL downlink
- UL uplink
- D/U/F flexible time-resources
- H/S/ NA hard, soft, or not available
- S Soft
- available (available) or not available (not available) is defined.
- a Flexible time-resource is a time resource that can be used for either DL or UL.
- “Hard” is a radio resource that is always available for the DU child link in which the corresponding time resource is connected to the child node or UE, and “Soft” is the radio resource for the DU child link of the corresponding time resource.
- a radio resource (DU resource) whose availability as a resource is explicitly or implicitly controlled by the parent node.
- the radio resource to be notified can be determined based on whether it is IA (indicated as available) or INA (indicated as not available).
- IA means that the DU resource is explicitly or implicitly indicated as available. Also, “INA” means that the DU resource is explicitly or implicitly marked as unavailable.
- the IAB configuration example shown in FIG. 2 uses CU/DU division, the IAB configuration is not necessarily limited to such a configuration.
- the wireless backhaul may be configured with IAB by tunneling using GPRS Tunneling Protocol (GTP)-U/User Datagram Protocol (UDP)/Internet Protocol (IP).
- GTP GPRS Tunneling Protocol
- UDP User Datagram Protocol
- IP Internet Protocol
- IAB The main advantage of such an IAB is that NR cells can be arranged flexibly and densely without densifying the transport network. IAB can be applied to various scenarios such as outdoor small cell deployment, indoors, and even supporting mobile relays (eg, in buses and trains).
- the IAB may also support NR-only standalone (SA) deployments or non-standalone (NSA) deployments that include other RATs (such as LTE), as shown in Figures 1 and 2.
- SA NR-only standalone
- NSA non-standalone
- radio access and radio backhaul may be half-duplex or full-duplex.
- time division multiplexing TDM
- space division multiplexing SDM
- frequency division multiplexing FDM
- DL Parent BH is the receiving (RX) side
- UL Parent BH is the transmitting (TX) side
- DL Child BH is the transmitting (TX) side
- UL Child BH is the receiving (RX) side.
- the DL/UL setting pattern at the IAB node is not limited to DL-F-UL, and there are setting patterns such as wireless backhaul (BH) only and UL-F-DL. may be applied.
- TDM/FDM is used to achieve simultaneous operation of the DU and MT of the IAB node. Note that both TDM and FDM are not always supported, and it is assumed that only one of them is supported.
- FIG. 3 is a functional block configuration diagram of the radio communication node 100A that constitutes the parent node.
- the wireless communication node 100A includes a wireless transmission section 110, a wireless reception section 120, a NW IF section 130, an IAB node connection section 140 and a control section 150.
- FIG. 1 is a functional block configuration diagram of the radio communication node 100A that constitutes the parent node.
- the wireless communication node 100A includes a wireless transmission section 110, a wireless reception section 120, a NW IF section 130, an IAB node connection section 140 and a control section 150.
- the wireless transmission unit 110 transmits wireless signals according to 5G to 6G specifications. Also, the radio receiving unit 120 transmits radio signals according to the specifications of 5G to 6G. In this embodiment, the radio transmission unit 110 and the radio reception unit 120 perform radio communication with the radio communication node 100B that constitutes the IAB node.
- the radio communication node 100A has the functions of MT and DU, and the radio transmission section 110 and the radio reception section 120 also transmit and receive radio signals corresponding to MT/DU.
- the wireless transmission unit 110 and the wireless reception unit 120 can perform wireless communication according to Half-duplex and Full-duplex. Further, radio transmission section 110 and radio reception section 120 can perform radio communication according to not only TDM (TDD) but also FDM and SDM.
- TDM TDM
- FDM FDM and SDM.
- the NW IF unit 130 provides a communication interface that realizes connection with the NGC side and the like.
- the NW IF unit 130 may include interfaces such as X2, Xn, N2, N3.
- the IAB node connection unit 140 provides an interface etc. for realizing connection with the IAB node (or it may be a child node including the UE). Specifically, the IAB node connection unit 140 provides a Distributed Unit (DU) function. In other words, the IAB node connection unit 140 is used for connection with the IAB node (or child node).
- DU Distributed Unit
- the IAB node may also be expressed as a RAN node that supports radio access to the UE 200 and backhauls access traffic by radio.
- the parent node, or IAB donor may also be referred to as a RAN node that provides the UE's interface to the core network and the radio backhaul functionality to the IAB node.
- the control unit 150 controls each functional block that configures the wireless communication node 100A.
- the control unit 150 executes control regarding setting of a radio link with the IAB node (radio communication node 100B).
- control unit 150 can determine DU resources (which may also be referred to as radio resources) allocated to the radio link set via the DU function for the IAB node.
- the resources may include time resources in the time direction and frequency resources in the frequency direction.
- a time resource is a resource in the time direction, and may be in units of symbols, slots, subframes, or the like.
- the time direction may also be referred to as the time domain, symbol period, or symbol time.
- the symbols may also be referred to as Orthogonal Frequency Division Multiplexing (OFDM) symbols.
- OFDM Orthogonal Frequency Division Multiplexing
- a frequency resource is a resource in the frequency direction, and may be a resource block, a resource block group, a subcarrier, or the like as a unit.
- the frequency direction may also be called a frequency domain, resource block, resource block group, subcarrier, BWP (Bandwidth part), and the like.
- FIG. 4 is a functional block configuration diagram of the wireless communication node 100B that configures the IAB node. As shown in FIG. 4, the wireless communication node 100B includes a wireless transmission section 161, a wireless reception section 162, an upper node connection section 170, a lower node connection section 180 and a control section 190. FIG.
- the wireless communication node 100B has functional blocks similar to those of the wireless communication node 100A (parent node) described above, but includes an upper node connection unit 170 and a lower node connection unit 180, and the functions of the control unit 190. is different.
- the wireless transmission unit 161 transmits wireless signals according to 5G to 6G specifications. Also, the radio receiving unit 162 transmits radio signals according to the specifications of 5G to 6G. In this embodiment, the wireless transmission unit 161 and the wireless reception unit 162 perform wireless communication with the wireless communication node 100A forming the parent node and wireless communication with the child nodes (including the UE 200).
- the radio transmission unit 161 and the radio reception unit 162 like the radio communication node 100A (parent node), perform radio communication according to half-duplex and full-duplex, and furthermore, not only TDM (TDD) but also FDM and SDM. wireless communication can be performed according to the
- the radio receiving unit 162 determines the type of resource allocated to the radio link with the other radio communication node that constitutes the child node in relation to the lower node, specifically the UE 200 or the IAB node. resource information can be received from the network.
- the radio receiving section 162 constitutes a receiving section.
- the radio receiving unit 162 indicates the type of DU resource (eg, H/S/NA, IA/INA) allocated to the radio link set via the DU function for the lower node.
- the resource information may be sent from the CU 50 according to the F1-AP (Application) protocol applied to the F1 interface between the CU and DU, or may be transmitted by the radio resource control layer (RRC) signaling to the network (specifically , gNB).
- RRC radio resource control layer
- the resource information received by the radio receiving unit 162 includes the type of time resource (H/S(IA/INA)/NA) and/or the type of frequency resource (H/S(IA /INA)/NA) can be indicated.
- the resource information includes a resource type (Hard, Soft (IA/INA) or NA) for each unit (for example, symbol) in the time direction and a resource type for each unit (for example, subcarrier) in the frequency direction. (Hard, Soft (IA/INA) or NA).
- a resource type Hard, Soft (IA/INA) or NA
- the resource information indicating at least the type of time resource and the resource information indicating at least the type of frequency resource may be specified (received) in a plurality of times.
- the unit in the time direction is not limited to symbols as described above, but may be slots made up of a plurality of symbols (for example, 14 symbols).
- the resource information may indicate frequency resources on the basis of resource blocks (RB) or resource block groups (RGB).
- RB resource blocks
- RGB resource block groups
- One RB may be interpreted as 12 resource elements (REs) in the frequency domain, and one RE is the smallest resource grid formed by one subcarrier in the frequency domain (one OFDM symbol in the time domain). May be interpreted as units.
- the resource information may separately indicate the type of time resource and the type of frequency resource, or may indicate a combination of the type of time resource and the type of frequency resource. .
- the resource information may indicate the resource type for each combination of the position in the time direction and the position in the frequency direction.
- resource information is a combination of a symbol position (which may be identified by a symbol number) and a subcarrier position (which may be identified by a subcarrier number or RB/RBG Index) (that is, a combination of time resources and frequency resources).
- the resource type Hard, Soft, NA and/or IA/INA of the combination may be indicated.
- the resource information includes units in the time direction (eg, symbols) and units in the frequency direction (eg, , subcarriers) and resource types (Hard, Soft, or NA) for each combination of time resources and frequency resources.
- the resource information may collectively indicate a plurality of resources of the same type that are continuous in the time direction or the frequency direction (or at least one of them).
- the resource information may indicate the slot number at which the same type of resource (eg, Hard) starts in the time direction and the number of slots in which the same type of resource continues (eg, 2 slots).
- resource information does not always indicate the type of frequency resource at all times.
- the resource information indicates the types of frequency resources in the frequency direction only for at least some time resources.
- the resource information indicates resource types for each combination of positions in the time direction and positions in the frequency direction only for at least some of the time resources.
- resource information indicating the type of frequency resource may indicate the type of time resource, and another resource information may indicate the type of time resource.
- some time resources indicating the types of frequency resources are not necessarily notified (received) from the network, and may be defined by specifications or the like. A specific example of resource information will be described later.
- the upper node connection unit 170 provides an interface for realizing connection with nodes higher than the IAB node.
- the upper node means a wireless communication node located on the network, specifically, on the core network side (which may also be called the upstream side or upstream side) than the IAB node.
- the upper node connection unit 170 provides a Mobile Termination (MT) function.
- MT Mobile Termination
- the upper node connection unit 170 is used for connection with the parent node that constitutes the upper node in this embodiment.
- the lower node connection unit 180 provides an interface for realizing connection with nodes lower than the IAB node.
- a lower node means a wireless communication node located on the end-user side (which may also be referred to as the downstream side or downstream side) from the IAB node.
- the lower node connection unit 180 provides a Distributed Unit (DU) function. That is, in this embodiment, the lower node connection unit 180 is used for connection with a child node (which may be the UE 200) that constitutes a lower node.
- DU Distributed Unit
- the control unit 190 controls each functional block that configures the wireless communication node 100B.
- the control unit 190 sets up radio links based on resource information received from the network (which may include the CU 50).
- control unit 190 resource (DU resource) to be allocated to a radio link with another radio communication node that constitutes a child node in relation to a lower node, specifically UE 200 or an IAB node.
- Various channels may be transmitted and received via the radio link to which the DU resource is allocated.
- Control channels include control channels and data channels.
- Control channels include PDCCH (Physical Downlink Control Channel), PUCCH (Physical Uplink Control Channel), PRACH (Physical Random Access Channel), and PBCH (Physical Broadcast Channel).
- data channels include PDSCH (Physical Downlink Shared Channel) and PUSCH (Physical Uplink Shared Channel).
- PDSCH Physical Downlink Shared Channel
- PUSCH Physical Uplink Shared Channel
- Reference signals include demodulation reference signal (DMRS), sounding reference signal (SRS), phase tracking reference signal (PTRS), and channel state information-reference signal (CSI-RS). and a reference signal.
- Data may also refer to data transmitted over a data channel.
- Uplink Control Information is UL control information, and is the symmetrical control information of Downlink Control Information (DCI).
- DCI Downlink Control Information
- UCI is transmitted over PUCCH or PUSCH.
- UCI may include SR (Scheduling Request), HARQ (Hybrid Automatic repeat request) ACK/NACK, and CQI (Channel Quality Indicator).
- DCI is DL control information.
- DCI is transmitted via PDCCH.
- the DCI may include PDSCH and PUSCH schedule information and the like.
- the IAB node (wireless communication node 100B) establishes a wireless link (parent link (Link_parent)) with the parent node (wireless communication node 100A) and a child node (UE 200, or other wireless communication node that constitutes the child node).
- the operations associated with simultaneous transmission and reception using TDM/FDM between a communication node) and a wireless link (a child link (Link_child)) will be described.
- TDM DU resources can be configured semi-static and/or dynamically.
- the IAB node DU can set Hard, Soft (IA/INA) or NA resource types for symbols in each slot.
- This setting can be realized using GNB-DU RESOURCE CONFIGURATION, which is an F1-AP message sent from CU50.
- dynamic indication (dynamic indication: IA or INA) can be given explicitly and implicitly.
- the IAB node DU can transmit or receive, or either transmit or receive within the symbol, only in the following cases.
- ⁇ IAB node MT does not transmit or receive in the symbol (implicit indication) - Since the IAB node MT transmits or receives on that symbol, the use of that symbol by the IAB node DU does not alter transmission or reception on that symbol (implicit indication) ⁇ IAB node MT detects DCI format 2_5 (see 3GPP TS38.212 section 7.3) and indicates that the symbol is available by the field value of Availability Indicator (AI) index (explicit indication)
- the CU 50 uses information elements (IEs) of Served Cell Information to transmit frequency information and transmission bandwidths of serving cells formed by DUs (hereafter, DU serving cells) to F1-AP signaling.
- IEs information elements
- Served Cell Information may contain NR Frequency Info and Transmission Bandwidth IEs.
- Table 1 shows configuration examples of Transmission Bandwidth specified in 3GPP TS38.473 Chapter 9.3.1.15.
- Transmission Bandwidth is used to indicate the UL or DL transmission bandwidth.
- Table 2 shows a configuration example of NR Frequency Info specified in 3GPP TS38.473 Chapter 9.3.1.17.
- NR Frequency Info can define the carrier frequency used in the cell for a specific direction (UL or DL) in FDD, both directions in TDD, or the Supplementary Uplink (SUL) carrier.
- donor CUs and parent nodes can recognize the multiplexing capability (TDM required or not) for any MT component carrier (CC) or DU cell pair between the MT and DU of an IAB node.
- TDM multiplexing capability
- an indication of the multiplexing capability in the case where the MT and DU of the IAB node are non-TDM is additionally provided for the combination of transmit and receive directions (for each pair of MT CC or DU cells), as shown below.
- Figures 5A, 5B and 5C show examples of frequency resource usage of the DU serving cell and the MT serving cell based on Assumptions 1-3.
- ⁇ (Assumption 1): The DU serving cell and the MT serving cell perform simultaneous transmission and reception (which may mean simultaneous transmission or simultaneous reception) using non-overlapping resources in the frequency direction.
- the DU transmission band does not overlap with the MT serving cell's BWP (which may be set by signaling to the RRC layer).
- the DU serving cell and the MT serving cell may mean cells respectively formed by the DU and MT of the IAB node.
- ⁇ (Assumption 2): The DU serving cell and the MT serving cell simultaneously transmit and receive using resources that completely overlap in the frequency direction.
- ⁇ (Assumption 3): The DU serving cell and the MT serving cell simultaneously transmit and receive using resources that partially overlap in the frequency direction.
- the bandwidths of the DU serving cell and the MT serving cell are set so that they do not overlap, so if the multiplexing capability of the IAB node supports simultaneous transmission and reception of pairs of the DU serving cell and the MT serving cell, MTs and DUs of an IAB node can perform simultaneous transmission and reception if the transmission direction is consistent with the multiplexing capability. In this case no additional signaling for resource multiplexing in the frequency domain is required.
- this embodiment implements semi-static or dynamic resource multiplexing between parent and child links by FDM.
- FDM is not always performed at all times, and even in such a case, a method of performing appropriate simultaneous transmission and reception will be described.
- the operation example described below is simultaneous transmission and reception according to FDM by MT and DU of the IAB node within the same frequency band (simply referred to as band or frequency range), that is, frequency division duplex ( FDD).
- FDD frequency division duplex
- ⁇ (Option 1): Semi-statically set the availability (H/S/NA) of the DU resource of the IAB node for each frequency axis/time axis (for each unit in the frequency direction/time direction).
- ⁇ (Option 2): semi-statically set the availability (H/S/NA) of the DU resource of the IAB node for each matrix (combination) of the frequency/time axis (units in the frequency direction/time direction).
- ⁇ (Operation example 1a) This is an operation example (Option 1a) related to Option 1, but H/S/NA in the frequency direction is set for each time resource (H/S/NA in the time direction of 3GPP Release 16 setting is unnecessary).
- each frequency resource (RB group/set) is H/S of each slot of each D/U/F resource type (this is the same unit granularity as H/S/NA of Rel-16)). Can be set as /NA.
- each frequency resource may be set to Hard, Soft, or NA for each time unit.
- the IAB node determines whether the DU of the IAB node can use the T-F resource by setting the H/S/NA setting of the DU symbol according to Rel-16 and the H/S/NA setting of the frequency resource of Option 1. You can judge from both.
- Option 1 differs from Option 1 in that different resource types (H/S/NA) can be set for frequency resources if the time unit (e.g., symbol) is different (see the circled frame in the figure). .
- the H/S/NA setting of frequency resources for each time unit is the same as in Operation Example 1.
- whether or not DU resources can be used for transmission/reception is determined according to the H/S/NA settings in the time direction and frequency direction, as in FIG. 7A.
- the time unit may be any of multi-subframes, subframes, multi-slots, slots, symbols, symbol groups, or D/U/F within each slot.
- the granularity may be predefined as a 3GPP specification, or may be set by the network.
- the periodicity in the time domain may be predefined in the 3GPP specifications, or may be set by the network.
- the set resource type may be repeated according to the period.
- ⁇ (Operation example 2) Operation example related to Option 2
- the RBG size may be defined in advance by the 3GPP specifications, or may be set by signaling such as RRC.
- default resource types may be set, for example, default values (H/S/NA) may be set for each RB/RBG. Also, among the resource types (H/S/NA), for example, only two (H/S) may be set.
- FIG. 6 shows a schematic communication sequence for setting DU resources of an IAB node.
- the CU 50 transmits resource information (eg, GNB-DU RESOURCE CONFIGURATION) including the type of DU resource of the IAB node to the wireless communication node 100B (IAB node) (S10).
- resource information eg, GNB-DU RESOURCE CONFIGURATION
- IAB node wireless communication node 100B
- GNB-DU RESOURCE CONFIGURATION is a type of F1-AP message and is specified in 3GPP TS38.473.
- the wireless communication node 100B more specifically, the DU of the IAB node returns GNB-DU RESOURCE CONFIGURATIONACKNOWLEDGE to CU50 in response to receiving GNB-DU RESOURCE CONFIGURATION (S20).
- GNB-DU RESOURCE CONFIGURATION and GNB-DU RESOURCE CONFIGURATION ACKNOWLEDGE are a type of F1-AP message and are defined in 3GPP TS38.473.
- the wireless communication node 100B configures the DU resource based on the DU resource type (H/S/NA) included in the resource information (GNB-DU RESOURCE CONFIGURATION) (S30).
- the radio communication node 100B determines time resources and (at least part of) frequency resources to be allocated to the child link (Link_child) based on the type of DU resource (H/S/NA). Note that the child link may be referred to as the DU serving cell as described above.
- the wireless communication node 100A (parent node) and wireless communication node 100B set a parent link (Link_parent) and a child link (Link_child) (S40). As described above, in this operation example, transmission/reception according to TDM/FDM (including only a part thereof) is performed between the parent link and the child link.
- FIG. 7A shows an example of setting DU resources according to option 1.
- FIG. 7B shows an example configuration of DU resources according to Option 2.
- FIG. 7A shows an example of setting DU resources according to option 1.
- FIG. 7B shows an example configuration of DU resources according to Option 2.
- H / S / NA of frequency resources can be set for each DU serving cell, but in option 1, 3GPP Release 16 (hereinafter referred to as Rel-16) DU symbol (time resource) setting Methods may be reused.
- Rel-16 3GPP Release 16
- DU symbol (time resource) setting Methods may be reused.
- Whether a DU can use time-frequency (T-F) resources depends on the H/S/NA configuration of Rel-16 DU symbols (that is, time resources) and the H/S/NA configuration of frequency resources according to Option 1. It is necessary to judge from both
- the time direction follows the Rel-16 H/S/NA setting
- the frequency direction follows the H/S/NA setting according to Option 1
- each DU resource type Hard, Soft or NA
- the corresponding DU resource can be used for transmission or reception, and when either time direction or frequency direction setting is NA, the corresponding DDU resource is , cannot be used for transmission or reception.
- the availability of transmission/reception of the relevant DU resource is notified from the parent node using DCI format 2_5. be done.
- T-F resources can be configured as Hard, Soft, or NA for each DU serving cell.
- Option 2 does not require separate H/S/NA settings for Rel-16 DU symbols. Whether a DU can use T-F resources can be determined directly according to the configuration according to Option 2.
- Operation example 1 may be further configured with the following sub-options.
- ⁇ Indicates a set of frequency resources and the resource type of the set of frequency resources.
- the granularity of frequency resources may be RB or RBG (RB/RBG).
- the indication of DU resources may target the DU transmission band.
- resource blocks (RB) #1, 6, 10 are set to Hard
- RB#5, 7 are set to Soft
- RB#4, 8, 9 are set to NA.
- option 1-1 the number of RBs included in each set of frequency resources (#1-3) and the resource type (H/S/NA) are indicated.
- FIG. 8 is a diagram showing an assumed case 1.
- FIG. 9 is a diagram showing an assumed case 2.
- the IAB node assumes Rel-16 configuration of H/S/NA for DU symbols for each slot/each DUF (Downlink/Uplink/Free) resource type at slot/symbol level (see case 2 in Figure 9). ).
- the IAB node assumes a new configuration of H/S/NA for DU frequency (freq.)/T-F resources for each slot/each DUF resource type at slot/symbol level (see Figure 8 case 1) .
- setting H/S/NA Rel-16 for DU symbols may mean H/S/NA for each D/U/F resource type.
- H/S/NA settings for DU frequency (freq.)/T-F resources are H/S/NA for each RBG per slot per D/U/F resource type
- H/S/NA per RBG per slot means NA or H/S/NA per RBG per symbol (H/S/NA per RB group (N RBs) per slot per D/U/F resource type, or per RBG per slot or per RBG per symbol)
- the frequency/T-F resource type (kind) is the resource type in the frequency direction (H/S/NA) in a certain part of time, or the position and frequency of time (T) in a certain part of time. It may mean a resource type (H/S/NA) for each position combination (T-F) of (F).
- whether the resource type "H/S/NA" is set for DU symbols or for DU frequency/T-F can be distinguished by upper layer parameters (eg "FDM operation”). For example, if “FDM operation” is enabled, the IAB node assumes a new configuration of H/S/NA for DU frequency/T-F resources. On the other hand, if "FDM operation” is not enabled, the IAB node assumes R16 setting of H/S/NA for DU symbols.
- FIG. 10 is a diagram showing cases 1 and 2.
- the IAB node has both a Rel-16 configuration of H/S/NA for DU symbols and a new configuration of H/S/NA for DU frequencies/T-F resources for each slot/symbol.
- the IAB node assumes a Rel-16 configuration of H/S/NA for DU symbols for each slot/symbol. Also, the IAB node assumes a new configuration of H/S/NA for DU frequency/TF resources for some slot/DUF resource types at slot/symbol level.
- FIG. 11 is a diagram showing an example (Alt.1) in which the DU frequency/T-F resource type (H/S/NA) is set only when soft symbols are set.
- the type for DU frequency/T-F resource (H/S /NA) is set (implicitly) by a predefined rule. For example, as shown in Figure 11, in the Release 16 setting, even if the H/S/NA resource type is set in the frequency direction only for DU symbols designated as soft (specified/predefined), good. Thus, in this example, only for certain resource types (H/S/NA) of DU symbols (e.g., only DU soft symbols or only DU hard/soft symbols), the type of DU frequency/T-F resources (H/S/NA) is set.
- FIG. 12 is a diagram showing an example (Alt.2) in which the new setting determines the time at which the DU frequency/T-F resource type (H/S/NA) is set.
- the type for DU frequency/T-F resource (H/S /NA) is set explicitly.
- Alt.1 Defines time resources that are set in the frequency direction (or time-frequency direction)
- Alt.2 Notification of time resources configured in the frequency direction (or time-frequency direction)
- IAB nodes may assume new configuration signaling.
- FIG. 13 is a diagram showing another example.
- the new configuration signaling at slot level H/S/NA for some slots/DUF resource types/symbols are set for DU frequency/T-F resources and at slot level H/S/NA for other slots/DUF resource types/symbols /S/NA is set for DU symbols.
- resource type As above, it is pre-defined whether resource type (H/S/NA) is configured for each symbol or for DU frequency/T-F resource (H/S/NA). It may be determined by a rule specified in the table, may be explicitly set for each slot, or may be (implicitly) determined from the resource type (D/U/F) of each slot or each symbol. .
- FIG. 14 is a diagram showing an example of dynamic indication for DU frequency/TF resource.
- soft resource availability in IAB FDM may be dynamically indicated (IA/INA). Note that the following two options may be adopted.
- Plan 1-2 Reuse DCI format 2_5 that indicates availability of each soft frequency resource
- Plan 2-2 Reuse DCI format 2_5 that indicates availability of each soft TF (time-frequency) resource
- the IAB node expects a dynamic indication of DU symbol availability (IA/INA) for some slots/symbols, while it expects a dynamic indication of DU frequency/T-F resource availability for other slots/symbols. .
- an IAB node may assume one DCI for each slot/symbol that dynamically indicates resource availability. Now, if the availability (IA/INA) per DU frequency/T-F resource per D/U/F resource type per slot is indicated, the indication of availability for DU symbols becomes unnecessary. On the other hand, if availability is indicated for each DU symbol, indication of DU frequency/T-F resource availability becomes unnecessary (e.g., if a DU symbol is indicated as available (IA), the , all frequency/T-F resources may be available). In other words, indication of availability both for DU symbols and for DU frequency/T-F resources is not mandatory.
- the dynamic indication of DU symbol availability may mean the dynamic indication (IA/INA) of availability per slot for each D/U/F resource type.
- the dynamic indication for DU frequency/T-F resources is per RB group (N RB), per slot, per D/U/F resource type, per RBG per slot, or It may mean a dynamic indication of availability (IA/INA) per per RBG per symbol.
- IA means that it is marked as available.
- INA means unavailable or without explicit indication
- the IAB node assumes dynamic indication of DU symbol availability for each slot/symbol, or the IAB node assumes dynamic indication of DU frequency/T-F resource availability for each slot/symbol. or
- an IAB node determines whether an IAB node expects dynamic indication of DU symbol availability or DU frequency/T-F (time-frequency) resource availability. For example, whether an IAB node expects dynamic indication of DU symbol availability or DU frequency/T-F (time-frequency) resource availability depends on a higher layer parameter (e.g., “ FDM”). When "FDM" is enabled, the IAB node assumes dynamic indication of availability of each frequency/T-F resource. On the other hand, if "FDM" is not enabled, the IAB node assumes a dynamic indication of availability for each symbol.
- FDM higher layer parameter
- FIG. 14 is a diagram showing an example (case 1) of dynamic availability indication for RBG for each D/U/F resource type per slot.
- FIG. 15 is a diagram showing an example (case 2) of dynamic indication of availability for each D/U/F resource type per slot.
- the IAB node assumes that both of these cases can be mixed.
- FIG. 16 is a diagram showing an example in which case 1 and case 2 coexist.
- the IAB node assumes different D/U/F resource types. That is, the IAB node may assume either dynamic indication for DU symbols or dynamic indication for DU frequency/T-F resources.
- an IAB node may envisage dynamic indication of DU symbol availability for some slots/some DUF resource types at slot/symbol level.
- the IAB node may also envision dynamic indication of DU frequency/T-F resource availability for some other slots/some other DUF resource types at slot/symbol level.
- the following options may be adopted.
- the IAB node assumes that the dynamic indication is notified in the time direction in a certain time resource, and in the frequency direction (or time-frequency direction) in other time resources.
- the following options may be adopted.
- Alt.1 Defines whether the dynamic indication corresponds to the time direction or frequency direction (or time-frequency direction)
- Alt.2 Notifies whether the dynamic indication corresponds to the time direction or the frequency direction (or time-frequency direction)
- the IAB node can assume either dynamic indication of DU symbols or dynamic indication of DU frequency/T-F resources for different slots.
- all D/U/F resource types are dynamically indicated for DU symbols and all D/U/F resource types are dynamically indicated for DU frequency/T-F resources. becomes.
- FIG. 18 is a diagram showing an example of the signaling structure of DCI format 2_5.
- an indication indicating availability of DU symbols may be included, and an indication indicating availability of DU frequency/T-F resources may be included.
- Indication may use an availability indication (mapping between resourceAvailability element and availability) for a DU symbol defined in Rel-16, as shown below.
- the availability indication (mapping of resourceAvailability elements and availability) for DU symbols may be defined in a new table, eg, as shown below. This is useful when using different DUF resource types at the slot level, and the IAB node can assume either dynamic indication for DU symbols or dynamic indication for DU frequency/TF resources. It is useful because In this case, each indication may be configured for one DUF resource type.
- UE capabilities and/or higher layer configurations may be defined as described below. ⁇ Whether FDM between MT Tx/Rx and DU Tx/Rx is supported ⁇ Whether FDM between MT Tx/Rx and DU Tx/Rx in MT serving cell/DU cell is supported
- the above may only apply if the corresponding UE capabilities are reported and/or configured by the corresponding higher layer signals.
- the radio communication node 100B uses the DU resource type (H/S/NA ,IA/INA) can be received. Also, the radio communication node 100B can set a radio link (child link) based on the resource information. Furthermore, the resource information is resource information indicating the type of time resource in the time direction and the type of frequency resource in the frequency direction for at least some of the time resources, or the position in the time direction and the position in the frequency direction. is resource information indicating resource types for each combination of at least part of time resources.
- IAB nodes can perform simultaneous transmission and reception in MT and DU using FDM. That is, the IAB node can determine whether the DU resource, specifically the frequency resource, can be applied to simultaneous transmission and reception with the MT using FDM. , suitable simultaneous transmission and reception using FDM can be performed even when TDM and FDM coexist.
- the radio communication node 100B has resource information indicating the type of time resource in the time direction and resource information indicating the type of frequency resource in the frequency direction, or a combination of a position in the time direction and a position in the frequency direction. It can receive resource information that indicates the type of resource for each.
- the radio communication node 100B separately receives information on the resource type in the new frequency direction in addition to the conventional information on the resource type for each DU symbol/slot. can flexibly and reliably determine the type of time resource and the type of frequency resource.
- the radio communication node 100B defines or is notified from the network of some time resources indicating the types of frequency resources in the frequency direction.
- the radio communication node 100B can implicitly or explicitly determine from other information or the like whether or not the type of frequency resource in the frequency direction is indicated for part of the time.
- the names of the parent node, the IAB node, and the child node were used.
- the names may be different as long as the node configuration is adopted. For example, they may simply be called first and second nodes, or they may be called upper nodes, lower nodes, relay nodes, intermediate nodes, and the like.
- the wireless communication node may be simply referred to as a communication device or a communication node, or may be read as a wireless base station.
- DL and UL downlink
- forward ring reverse link
- access link and backhaul
- backhaul may be interchanged or associated.
- first link, second link, first direction, second direction, etc. may simply be used.
- each functional block may be implemented using one device physically or logically coupled, or directly or indirectly using two or more physically or logically separate devices (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices.
- a functional block may be implemented by combining software in the one device or the plurality of devices.
- Functions include judging, determining, determining, calculating, calculating, processing, deriving, investigating, searching, checking, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, assuming, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. can't
- a functional block (component) that performs transmission is called a transmitting unit or transmitter.
- the implementation method is not particularly limited.
- FIG. 19 is a diagram showing an example of the hardware configuration of the device. As shown in FIG. 19, the device may be configured as a computer device including a processor 1001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, bus 1007, and the like.
- the term "apparatus” can be read as a circuit, device, unit, or the like.
- the hardware configuration of the device may be configured to include one or more of each device shown in the figure, or may be configured without some of the devices.
- Each functional block of the device (see FIGS. 3 and 4) is realized by any hardware element of the computer device or a combination of the hardware elements.
- each function of the device is implemented by causing the processor 1001 to perform calculations, controlling communication by the communication device 1004, and controlling the It is realized by controlling at least one of data reading and writing in 1002 and storage 1003 .
- a processor 1001 operates an operating system and controls the entire computer.
- the processor 1001 may be configured with a central processing unit (CPU) including interfaces with peripheral devices, a controller, arithmetic units, registers, and the like.
- CPU central processing unit
- the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to them.
- programs program codes
- software modules software modules
- data etc.
- the various processes described above may be executed by one processor 1001, or may be executed by two or more processors 1001 simultaneously or sequentially.
- Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via an electric communication line.
- the memory 1002 is a computer-readable recording medium, and is composed of at least one of Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), Random Access Memory (RAM), etc. may be
- ROM Read Only Memory
- EPROM Erasable Programmable ROM
- EEPROM Electrically Erasable Programmable ROM
- RAM Random Access Memory
- the memory 1002 may also be called a register, cache, main memory (main storage device), or the like.
- the memory 1002 can store programs (program code), software modules, etc. capable of executing a method according to an embodiment of the present disclosure.
- the storage 1003 is a computer-readable recording medium, for example, an optical disc such as a Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disc, a magneto-optical disc (for example, a compact disc, a digital versatile disc, a Blu-ray disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, and/or the like.
- Storage 1003 may also be referred to as an auxiliary storage device.
- the recording medium described above may be, for example, a database, server, or other suitable medium including at least one of memory 1002 and storage 1003 .
- the communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, or the like.
- the communication device 1004 includes a high-frequency switch, duplexer, filter, frequency synthesizer, etc., for realizing at least one of frequency division duplex (FDD) and time division duplex (TDD).
- FDD frequency division duplex
- TDD time division duplex
- the input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives input from the outside.
- the output device 1006 is an output device (eg, display, speaker, LED lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated (for example, a touch panel).
- each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information.
- the bus 1007 may be configured using a single bus, or may be configured using different buses between devices.
- the device includes hardware such as a microprocessor, digital signal processor (DSP), application specific integrated circuit (ASIC), programmable logic device (PLD), field programmable gate array (FPGA), etc.
- DSP digital signal processor
- ASIC application specific integrated circuit
- PLD programmable logic device
- FPGA field programmable gate array
- notification of information is not limited to the aspects/embodiments described in the present disclosure, and may be performed using other methods.
- the notification of information may include physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI), higher layer signaling (e.g., RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB), other signals, or combinations thereof, and RRC signaling may also be referred to as RRC messages, e.g., RRC Connection Setup ) message, RRC Connection Reconfiguration message, or the like.
- DCI Downlink Control Information
- UCI Uplink Control Information
- RRC signaling e.g., RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB), other signals, or combinations thereof
- RRC signaling may also be referred to as RRC messages, e.g., RRC Connection Setup ) message, R
- LTE Long Term Evolution
- LTE-A LTE-Advanced
- SUPER 3G IMT-Advanced
- 4G 5th generation mobile communication system
- 5G Future Radio Access
- FAA New Radio
- NR New Radio
- W-CDMA® GSM®
- CDMA2000 Code Division Multiple Access 2000
- UMB Ultra Mobile Broadband
- IEEE 802.11 Wi-Fi®
- IEEE 802.16 WiMAX®
- IEEE 802.20 Ultra-WideBand (UWB), Bluetooth®
- next-generation systems enhanced based on these may be applied to one.
- a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G).
- a specific operation that is performed by a base station in the present disclosure may be performed by its upper node in some cases.
- various operations performed for communication with a terminal may be performed by the base station and other network nodes other than the base station (e.g. MME or S-GW, etc., but not limited to).
- MME or S-GW network nodes
- the case where there is one network node other than the base station is exemplified above, it may be a combination of a plurality of other network nodes (for example, MME and S-GW).
- Information, signals can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may be input and output via multiple network nodes.
- Input/output information may be stored in a specific location (for example, memory) or managed using a management table. Input and output information may be overwritten, updated, or appended. The output information may be deleted. The entered information may be transmitted to other devices.
- the determination may be made by a value represented by one bit (0 or 1), by a true/false value (Boolean: true or false), or by numerical comparison (for example, a predetermined value).
- notification of predetermined information is not limited to being performed explicitly, but may be performed implicitly (for example, not notifying the predetermined information). good too.
- Software whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.
- software, instructions, information, etc. may be transmitted and received via a transmission medium.
- the Software uses wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.) to access websites, Wired and/or wireless technologies are included within the definition of transmission medium when sent from a server or other remote source.
- wired technology coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.
- wireless technology infrared, microwave, etc.
- data, instructions, commands, information, signals, bits, symbols, chips, etc. may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of
- the channel and/or symbols may be signaling.
- a signal may also be a message.
- a component carrier may also be called a carrier frequency, a cell, a frequency carrier, or the like.
- system and “network” used in this disclosure are used interchangeably.
- information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values from a predetermined value, or may be expressed using other corresponding information.
- radio resources may be indexed.
- base station BS
- radio base station fixed station
- NodeB NodeB
- eNodeB eNodeB
- gNodeB gNodeB
- a base station may also be referred to by terms such as macrocell, small cell, femtocell, picocell, and the like.
- a base station can accommodate one or more (eg, three) cells (also called sectors). When a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, each smaller area corresponding to a base station subsystem (e.g., a small indoor base station (Remote Radio)). Head: RRH) can also provide communication services.
- a base station subsystem e.g., a small indoor base station (Remote Radio)
- Head: RRH can also provide communication services.
- cell refers to part or all of the coverage area of at least one of a base station and base station subsystem that provides communication services in this coverage.
- MS Mobile Station
- UE User Equipment
- a mobile station is defined by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless It may also be called a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
- At least one of the base station and mobile station may be called a transmitting device, a receiving device, a communication device, or the like.
- At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, or the like.
- the mobile body may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile body (e.g., drone, self-driving car, etc.), or a robot (manned or unmanned ).
- at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations.
- at least one of the base station and mobile station may be an Internet of Things (IoT) device such as a sensor.
- IoT Internet of Things
- the base station in the present disclosure may be read as a mobile station (user terminal, hereinafter the same).
- communication between a base station and a mobile station is replaced with communication between multiple mobile stations (for example, Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.)
- the mobile station may have the functions that the base station has.
- words such as "up” and “down” may be replaced with words corresponding to inter-terminal communication (for example, "side”).
- uplink channels, downlink channels, etc. may be read as side channels.
- a mobile station in the present disclosure may be read as a base station.
- the base station may have the functions that the mobile station has.
- a radio frame may consist of one or more frames in the time domain. Each frame or frames in the time domain may be referred to as a subframe. A subframe may also consist of one or more slots in the time domain. A subframe may be a fixed time length (eg, 1 ms) independent of numerology.
- a numerology may be a communication parameter that applies to the transmission and/or reception of a signal or channel. Numerology, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, transmission and reception specific filtering operations performed by the receiver in the frequency domain, specific windowing operations performed by the transceiver in the time domain, and/or the like.
- SCS subcarrier spacing
- TTI transmission time interval
- number of symbols per TTI radio frame structure
- transmission and reception specific filtering operations performed by the receiver in the frequency domain specific windowing operations performed by the transceiver in the time domain, and/or the like.
- a slot may consist of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain.
- OFDM Orthogonal Frequency Division Multiplexing
- SC-FDMA Single Carrier Frequency Division Multiple Access
- a slot may be a unit of time based on numerology.
- a slot may contain multiple mini-slots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be referred to as a subslot. A minislot may consist of fewer symbols than a slot.
- a PDSCH (or PUSCH) that is transmitted in time units larger than a minislot may be referred to as PDSCH (or PUSCH) mapping type A.
- PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (or PUSCH) mapping type B.
- Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals. Radio frames, subframes, slots, minislots and symbols may be referred to by other corresponding designations.
- one subframe may be called a transmission time interval (TTI)
- TTI transmission time interval
- multiple consecutive subframes may be called a TTI
- one slot or one minislot may be called a TTI. That is, at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, may be a period shorter than 1ms (eg, 1-13 symbols), or a period longer than 1ms may be Note that the unit representing the TTI may be called a slot, minislot, or the like instead of a subframe.
- TTI refers to, for example, the minimum scheduling time unit in wireless communication.
- a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each user terminal) to each user terminal on a TTI basis.
- radio resources frequency bandwidth, transmission power, etc. that can be used by each user terminal
- the TTI may be a transmission time unit for channel-encoded data packets (transport blocks), code blocks, codewords, etc., or may be a processing unit for scheduling, link adaptation, etc. Note that when a TTI is given, the time interval (for example, the number of symbols) in which transport blocks, code blocks, codewords, etc. are actually mapped may be shorter than the TTI.
- one slot or one minislot is called a TTI
- one or more TTIs may be the minimum scheduling time unit.
- the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
- a TTI with a time length of 1 ms may be called a normal TTI (TTI in LTE Rel.8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, etc.
- TTI that is shorter than a regular TTI may also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a minislot, a subslot, a slot, and so on.
- long TTI for example, normal TTI, subframe, etc.
- short TTI for example, shortened TTI, etc.
- a TTI having a TTI length greater than or equal to this value may be read as a replacement.
- a resource block is a resource allocation unit in the time domain and frequency domain, and may include one or more consecutive subcarriers in the frequency domain.
- the number of subcarriers included in an RB may be the same regardless of neurology, and may be 12, for example.
- the number of subcarriers included in an RB may be determined based on neumerology.
- the time domain of an RB may include one or more symbols and may be 1 slot, 1 minislot, 1 subframe, or 1 TTI long.
- One TTI, one subframe, etc. may each consist of one or more resource blocks.
- One or more RBs are physical resource blocks (Physical RB: PRB), sub-carrier groups (SCG), resource element groups (REG), PRB pairs, RB pairs, etc. may be called.
- PRB Physical resource blocks
- SCG sub-carrier groups
- REG resource element groups
- PRB pairs RB pairs, etc.
- a resource block may be composed of one or more resource elements (Resource Element: RE).
- RE resource elements
- 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.
- a Bandwidth Part (which may also be called a Bandwidth Part) represents a subset of contiguous common resource blocks (RBs) for a neumerology in a carrier. good.
- the common RB may be identified by an RB index based on the common reference point of the carrier.
- PRBs may be defined in a BWP and numbered within that BWP.
- BWP may include BWP for UL (UL BWP) and BWP for DL (DL BWP).
- BWP may include BWP for UL (UL BWP) and BWP for DL (DL BWP).
- One or more BWPs may be configured in one carrier for a UE.
- At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal/channel outside the active BWP.
- BWP bitmap
- radio frames, subframes, slots, minislots and symbols described above are only examples.
- the number of subframes included in a radio frame the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of Configurations such as the number of subcarriers and the number of symbols in a TTI, symbol length, cyclic prefix (CP) length, etc.
- CP cyclic prefix
- connection means any direct or indirect connection or coupling between two or more elements, It can include the presence of one or more intermediate elements between two elements being “connected” or “coupled.” Couplings or connections between elements may be physical, logical, or a combination thereof. For example, “connection” may be read as "access”.
- two elements are defined using at least one of one or more wires, cables and printed electrical connections and, as some non-limiting and non-exhaustive examples, in the radio frequency domain. , electromagnetic energy having wavelengths in the microwave and light (both visible and invisible) regions, and the like.
- the reference signal can also be abbreviated as Reference Signal (RS), and may also be called Pilot depending on the applicable standard.
- RS Reference Signal
- any reference to elements using the "first,” “second,” etc. designations used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, references to first and second elements do not imply that only two elements may be employed therein or that the first element must precede the second element in any way.
- determining and “determining” used in this disclosure may encompass a wide variety of actions.
- “Judgement” and “determination” are, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (eg, lookup in a table, database, or other data structure), ascertaining as “judged” or “determined”, and the like.
- "judgment” and “determination” are used for receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access (accessing) (for example, accessing data in memory) may include deeming that a "judgment” or “decision” has been made.
- judgment and “decision” are considered to be “judgment” and “decision” by resolving, selecting, choosing, establishing, comparing, etc. can contain.
- judgment and “decision” can include considering that some action is “judgment” and “decision”.
- judgment (decision) may be read as “assuming”, “expecting”, “considering”, or the like.
- a and B are different may mean “A and B are different from each other.”
- the term may also mean that "A and B are different from C”.
- Terms such as “separate,” “coupled,” etc. may also be interpreted in the same manner as “different.”
- Radio communication system 50 CU 100A, 100B, 100C wireless communication node 110 wireless transmission unit 120 wireless reception unit 130 NW IF unit 140 IAB node connection unit 150 control unit 161 wireless transmission unit 162 wireless reception unit 170 upper node connection unit 180 lower node connection unit 190 control unit UE 200 1001 Processor 1002 Memory 1003 Storage 1004 Communication Device 1005 Input Device 1006 Output Device 1007 Bus
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Abstract
Description
図1は、本実施形態に係る無線通信システム10の全体概略構成図である。無線通信システム10は、5G New Radio(NR)に従った無線通信システムであり、複数の無線通信ノード及び端末によって構成される。
次に、無線通信システム10を構成する無線通信ノード100A及び無線通信ノード100Bの機能ブロック構成について説明する。
図3は、親ノードを構成する無線通信ノード100Aの機能ブロック構成図である。図3に示すように、無線通信ノード100Aは、無線送信部110、無線受信部120、NW IF部130、IABノード接続部140及び制御部150を備える。
図4は、IABノードを構成する無線通信ノード100Bの機能ブロック構成図である。図4に示すように、無線通信ノード100Bは、無線送信部161、無線受信部162、上位ノード接続部170、下位ノード接続部180及び制御部190を備える。
次に、無線通信システム10の動作について説明する。具体的には、IABノード(無線通信ノード100B)が、親ノード(無線通信ノード100A)との無線リンク(親リンク(Link_parent))と、子ノード(UE200、または子ノードを構成する他の無線通信ノード)との無線リンク(子リンク(Link_child))との間におけるTDM/FDMを用いた同時送受信に関連する動作について説明する。
3GPPのRelease 16では、親リンクと子リンクとの間において、TDMによるリソース多重化が規定されている。
・IABノードMTが当該シンボルにおいて送信または受信を行うため、IABノードDUによる当該シンボルの使用による当該シンボルにおける送信または受信が変更されない(暗黙的な指示)
・IABノードMTがDCI format 2_5(3GPP TS38.212 7.3章参照)を検出し、Availability Indicator(AI)インデックスのフィールド値によって当該シンボルが利用可能であることを指示する(明示的な指示)
・MT送信/DU受信
・MT受信/DU送信
・MT受信/DU受信
FDMによる親リンクと子リンクとの間におけるリソース多重化による親リンク及び子リンクでの同時送受信に関しては、次のような想定(Assumption)1~3が考えられる。
以下では、FDMによる準静的なリソース多重化について説明しつつ、動的なリソース多重化についても説明する。なお、以下説明する動作は、(想定2)または(想定3)に限らず、(想定1)に場合にも適用されてよい。
・(オプション2-1):H/S/NAとして設定されるリソースをまとめて設定する
・(オプション2-1-1):周波数軸/時間軸毎に設定する
・(オプション2-1-2):周波数軸/時間軸のマトリクスによって示されるリソースに対して、H/S/NA毎にビットマップによって設定する
・(動作例2-2):それぞれのリソースのH/S/NAを周波数、時間または時間、周波数の順に設定する
まず、IABノードのDUリソースの設定に関する全体的なシーケンスについて説明する。図6は、IABノードのDUリソースの設定に関する概略通信シーケンスを示す。
オプション1は、さらに、次のサブオプションが設定されてよい。
本動作例では、IABノードはIAB-DUのH/S/NAの設定に関して、時間方向と周波数方向(もしくは時間-周波数方向)の両方の設定がされると想定する。ここで、図8は、想定されるケース1を示す図である。図9は、想定されるケース2を示す図である。
本動作例では、IABノードは、各スロット/シンボルに対して、DUシンボル用のH/S/NAのRel-16構成を想定する。また、IABノードは、スロット/シンボルレベルで、一部のスロット/DUFリソースタイプのDU周波数/T-Fリソースに、H/S/NAの新しい構成を想定する。
Alt.1 : 周波数方向(もしくは時間-周波数方向)の設定がされる時間リソースを規定する
Alt.2 : 周波数方向(もしくは時間-周波数方向)の設定がされる時間リソースが通知される
上記のオプションでは、リソースタイプについて準静的な設定がなされる例について説明したが、これに限られず、動的な指示が行われてもよい。例えば、上述において準静的なリソースタイプの設定「H/S/NA」を、動的な指示「IA/INA」に読み替えて実施してもよいものである。
案1-2:各ソフト周波数リソースの可用性を示すDCI形式2_5を再利用する
案2-2:各ソフトT-F(時間-周波数)リソースの可用性を示すDCI形式2_5を再利用する
Alt.1 : 動的な指示(Dynamic indication)が時間方向,周波数方向(もしくは時間-周波数方向)いずれに対応するかを規定する
Alt.2 : 動的な指示(Dynamic indication)が時間方向,周波数方向(もしくは時間-周波数方向)いずれに対応するかが通知される
Alt.1 : Dynamic indicationが時間方向,周波数方向(もしくは時間-周波数方向)いずれに対応するかを規定する
Alt.2 : Dynamic indicationが時間方向,周波数方向(もしくは時間-周波数方向)いずれに対応するかが通知される
上述した準静的な設定と動的な指示は、任意に組み合わせて実施してもよいものである。例えば、以下のオプションのいずれかを採用してもよい。
・Semi-static : H/S/NAを時間方向,Dynamic : 時間,and 周波数方向
・Semi-static : 周波数方向,Dynamic : 時間, and 周波数方向
・Semi-static : 時間・周波数方向,Dynamic : 時間, and 周波数方向
・MT Tx/RxとDU Tx/Rx間のFDMがサポートされているかどうか
・MTサービスセル/DUセル内のMT Tx/RxとDU Tx/Rx間のFDMがサポートされているかどうか
上述した実施形態によれば、以下の作用効果が得られる。具体的には、無線通信ノード100B(IABノード)は、下位ノード(UE200または子ノード)向けのDUの機能を介して設定される当該無線リンクに割り当てられるDUリソースの種類(H/S/NA,IA/INA)を示すリソース情報を受信できる。また、無線通信ノード100Bは、当該リソース情報に基づいて無線リンク(子リンク)を設定できる。さらに、当該リソース情報は、時間方向における時間リソースの種類と、少なくとも一部の時間リソースについての、周波数方向における周波数リソースの種類とを示すリソース情報、または、時間方向における位置と周波数方向における位置との組み合わせ毎のリソースの種類を、少なくとも一部の時間リソースについて示すリソース情報である。
以上、実施形態について説明したが、当該実施形態の記載に限定されるものではなく、種々の変形及び改良が可能であることは、当業者には自明である。
50 CU
100A, 100B, 100C 無線通信ノード
110 無線送信部
120 無線受信部
130 NW IF部
140 IABノード接続部
150 制御部
161 無線送信部
162 無線受信部
170 上位ノード接続部
180 下位ノード接続部
190 制御部
UE 200
1001 プロセッサ
1002 メモリ
1003 ストレージ
1004 通信装置
1005 入力装置
1006 出力装置
1007 バス
Claims (4)
- 下位ノードとの無線リンクに割り当てられるリソースの種類を示すリソース情報をネットワークから受信する受信部と、
前記リソース情報に基づいて前記無線リンクを設定する制御部と
を備え、
前記受信部は、
時間方向における時間リソースの種類と、少なくとも一部の時間リソースについての、周波数方向における周波数リソースの種類とを示す前記リソース情報、または、
時間方向における位置と周波数方向における位置との組み合わせ毎の前記リソースの種類を、少なくとも一部の時間リソースについて示す前記リソース情報
を受信する無線通信ノード。 - 前記受信部は、
前記時間方向における時間リソースの種類を示す前記リソース情報と、
前記周波数方向における周波数リソースの種類を示す前記リソース情報、または、前記時間方向における位置と周波数方向における位置との組み合わせ毎の前記リソースの種類を示す前記リソース情報と、
を受信する請求項1に記載の無線通信ノード。 - 前記一部の時間リソースは、規定されている、または、ネットワークから通知される請求項1または2に記載の無線通信ノード。
- 下位ノードとの無線リンクに割り当てられるリソースの種類を示すリソース情報をネットワークから受信する受信ステップと、
前記リソース情報に基づいて前記無線リンクを設定する制御ステップと
を含み、
前記受信ステップは、
時間方向における時間リソースの種類と、少なくとも一部の時間リソースについて、周波数方向における周波数リソースの種類とを示す前記リソース情報、または、
少なくとも一部の時間リソースについて、時間方向における位置と周波数方向における位置との組み合わせ毎の前記リソースの種類を示す前記リソース情報
を受信する無線通信方法。
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Non-Patent Citations (3)
Title |
---|
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer procedures for control (Release 16), 3GPP", 3GPP TS 38.213, March 2020 (2020-03-01) |
LENOVO, MOTOROLA MOBILITY: "Resource multiplexing in enhanced IAB systems", 3GPP DRAFT; R1-2100990, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210125 - 20210205, 19 January 2021 (2021-01-19), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051971325 * |
NTT DOCOMO, INC.: "Resource multiplexing between child and parent links of an IAB node", 3GPP DRAFT; R1-2101628, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210125 - 20210205, 18 January 2021 (2021-01-18), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051971783 * |
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