WO2022201263A1 - 通信装置及び通信方法 - Google Patents
通信装置及び通信方法 Download PDFInfo
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- WO2022201263A1 WO2022201263A1 PCT/JP2021/011806 JP2021011806W WO2022201263A1 WO 2022201263 A1 WO2022201263 A1 WO 2022201263A1 JP 2021011806 W JP2021011806 W JP 2021011806W WO 2022201263 A1 WO2022201263 A1 WO 2022201263A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
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- H—ELECTRICITY
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
- H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
Definitions
- the present invention relates to a communication device and communication method in a wireless communication system.
- NR New Radio
- NR New Radio
- 5G various radio technologies and network architectures are being studied in order to meet the requirements of realizing a throughput of 10 Gbps or more and keeping the delay in the radio section to 1 ms or less (for example, Non-Patent Document 1).
- Non-Patent Document 2 For example, Non-Patent Document 2,
- 6G is expected to use even higher frequencies than before in order to further improve communication speed, capacity, reliability, delay performance, etc.
- the high frequency a wide bandwidth can be used, and the straightness of the radio wave is high and the frequency selectivity is low.
- the Doppler shift is large and the path loss is large.
- control rules that differ from conventional cell design or scheduling techniques by base stations may be more desirable from the perspective of network performance.
- a system in which a terminal or a base station autonomously determines resources to be used for transmission is conceivable, since the probability of resource collisions is expected to be lower than in the past.
- the present invention has been made in view of the above points, and it is an object of the present invention to specify the operation when signals collide in a wireless communication system that autonomously determines resources to be used.
- a receiving unit receives a plurality of requests to transmit a signal in a resource autonomously selected by another communication device from the other communication device, and responds to each of the plurality of requests based on conditions. and a transmitter for transmitting at least part of the plurality of signals to the other communication device.
- FIG. 1 is a diagram for explaining an example (1) of a wireless communication system according to an embodiment of the present invention
- FIG. FIG. 2 is a diagram for explaining example (2) of a wireless communication system according to an embodiment of the present invention
- FIG. 4 is a diagram showing an example of scheduling; It is a figure which shows the example (1) of transmission/reception in embodiment of this invention. It is a figure which shows the example (2) of transmission/reception in embodiment of this invention.
- FIG. 4 is a diagram showing an example (3) of transmission and reception in the embodiment of the present invention; It is a figure which shows the example (4) of transmission/reception in embodiment of this invention.
- FIG. 4 is a diagram showing an example (1) of resources for CSI reporting in the embodiment of the present invention;
- FIG. 4 is a diagram showing an example (2) of resources for CSI reporting in the embodiment of the present invention;
- FIG. 4 is a diagram showing an example of CSI reporting operation in an embodiment of the invention;
- It is a figure which shows the example (1) of signal transmission in embodiment of this invention.
- It is a figure which shows the example (2) of signal transmission in embodiment of this invention.
- It is a figure which shows the example (3) of signal transmission in embodiment of this invention.
- 2 is a diagram showing an example of the functional configuration of terminal 20 according to the embodiment of the present invention;
- FIG. 2 is a diagram showing an example of hardware configuration of base station 10 or terminal 20 according to an embodiment of the present invention;
- existing technology may be used as appropriate.
- the existing technology is, for example, existing NR or LTE, but is not limited to existing NR or LTE.
- FIG. 1 is a diagram for explaining example (1) of a wireless communication system according to an embodiment of the present invention.
- a wireless communication system according to an embodiment of the present invention includes a base station 10 and terminals 20, as shown in FIG. Although one base station 10 and one terminal 20 are shown in FIG. 1, this is an example and there may be more than one.
- the base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20.
- a physical resource of a radio signal is defined in the time domain and the frequency domain.
- the time domain may be defined by the number of OFDM symbols, and the frequency domain may be defined by the number of subcarriers or resource blocks.
- a TTI (Transmission Time Interval) in the time domain may be a slot, or a TTI may be a subframe.
- the base station 10 can perform carrier aggregation in which multiple cells (multiple CCs (component carriers)) are bundled and communicated with the terminal 20 .
- multiple CCs component carriers
- carrier aggregation one PCell (primary cell) and one or more SCells (secondary cells) are used.
- the base station 10 transmits a synchronization signal, system information, etc. to the terminal 20.
- Synchronization signals are, for example, NR-PSS and NR-SSS.
- System information is transmitted, for example, on NR-PBCH or PDSCH, and is also called broadcast information.
- the base station 10 transmits control signals or data to the terminal 20 on DL (Downlink) and receives control signals or data from the terminal 20 on UL (Uplink).
- control channels such as PUCCH and PDCCH
- data what is transmitted on a shared channel such as PUSCH and PDSCH is called data.
- the terminal 20 is a communication device with a wireless communication function, such as a smartphone, mobile phone, tablet, wearable terminal, or M2M (Machine-to-Machine) communication module. As shown in FIG. 1 , the terminal 20 receives control signals or data from the base station 10 on the DL and transmits control signals or data to the base station 10 on the UL, thereby performing various functions provided by the wireless communication system. Use communication services. Note that the terminal 20 may be called UE, and the base station 10 may be called gNB.
- the terminal 20 can perform carrier aggregation in which multiple cells (multiple CCs (component carriers)) are bundled and communicated with the base station 10 .
- multiple CCs component carriers
- carrier aggregation one PCell (primary cell) and one or more SCells (secondary cells) are used.
- a PUCCH-SCell with PUCCH may also be used.
- FIG. 2 is a diagram for explaining example (2) of the wireless communication system according to the embodiment of the present invention.
- FIG. 2 shows a configuration example of a wireless communication system when DC (Dual connectivity) is performed.
- a base station 10A serving as MN (Master Node) and a base station 10B serving as SN (Secondary Node) are provided.
- the base station 10A and base station 10B are each connected to a core network.
- Terminal 20 can communicate with both base station 10A and base station 10B.
- MCG Master Cell Group
- SCG Secondary Cell Group
- MCG is composed of one PCell and one or more SCells
- PSCell Primary SCG Cell
- DC may be a communication method using two communication standards, and any communication standards may be combined.
- the combination may be either NR and 6G standard or LTE and 6G standard.
- DC may be a communication method using three or more communication standards, and may be called by another name different from DC.
- the processing operations in the present embodiment may be executed in the system configuration shown in FIG. 1, may be executed in the system configuration shown in FIG. 2, or may be executed in a system configuration other than these. .
- control rules that differ from conventional cell design or scheduling techniques by base stations may be more desirable from the perspective of network performance. For example, DL-DL, DL-UL and UL-UL collision avoidance and inter-cell interference reduction are assumed to be less necessary than conventional lower frequencies.
- FIG. 3 is a diagram showing an example of scheduling.
- the beamforming of the base station 10 is realized in analog, and scheduling is performed by TDM (Time Division Multiplexing) for each beam.
- TDM Time Division Multiplexing
- beam #1 and beam #2 are multiplexed by TDM.
- the base station 10 schedules the terminals 20A and 20B using beam #1 and the terminal 20C using beam #2 by TDM.
- control rule A and control rule B) shown below are conceivable.
- the transmitting device transmits signals at free timings to both the base station 10 and the terminal 20 .
- the receiving device needs to detect signals at all timings at which both the base station 10 and the terminal 20 can receive signals. If a collision of resources used for transmission occurs, the collision is treated as a decoding error, and retransmission may be performed by feedback. In a frequency band that uses a higher frequency than before, the beam is very narrow and the area is narrow, so the number of terminals 20 existing within a given beam is very small, and scheduling by the base station 10 is not executed. However, it is assumed that the collision probability of resources used for transmission is low.
- Control rule B The transmitting device acquires the transmission right for both the base station 10 and the terminal 20 and performs signal transmission. That is, the base station 10 and the terminal 20 perform signal transmission after performing in-system LBT (Listen before talk). The receiving device needs to detect signals at all timings at which both the base station 10 and the terminal 20 can receive signals. Collisions of resources used for transmission are avoided by intra-system LBT. In frequency bands that use higher frequencies than before, in addition to the low resource collision probability, control rule B is designed to detect resource collisions that rarely occur due to intra-beam or inter-cell interference in advance and avoid collisions. can work.
- control rule A1 or control rule B1 the control rule with frame synchronization
- control rule A2 or control rule B2 the control rule without frame synchronization
- control rule A2 or control rule B2 the control rule A2 or the control rule B2 may be a control rule in which frame synchronization is performed but transmission can be started at arbitrary timing.
- control rule A1 control rule A2, control rule B1 and control rule B2
- the transmission procedure and signal detection procedure In addition, in the control rule B1 and the control rule B2, it is necessary to consider the intra-system LBT. As elements of LBT in the system, it is necessary to consider possible transmission time, semi-static transmission without LBT, and collision avoidance of frequency resources. Also, in the control rule A2 and the control rule B2, it is necessary to consider the preamble. Further, in the control rule A1 and the control rule B1, it is necessary to consider blind detection of the control signal.
- a transmitting node or a receiving node corresponds to either the base station 10 or the terminal 20 .
- FIG. 4 is a diagram showing an example (1) of transmission and reception according to the embodiment of the present invention.
- a procedure according to the control rule A1 will be described with reference to FIG. In the above control rule A1, the operations 1) to 4) shown below may be executed.
- a transmitting node may transmit a signal at a predetermined transmission timing.
- a transmission signal may be composed of at least one of a data signal, a control signal, and a reference signal.
- Predetermined transmission timing may be determined based on synchronized frames between transmitting and receiving nodes.
- the timing of transmissions other than the first transmission may be determined based on the signal transmitted immediately before.
- the transmission timing and transmission time length of transmissions other than the first transmission may be instructed to the transmitting node or set in advance, or notified to the receiving node or set in advance.
- the transmission timing of transmissions other than the first transmission may be x symbols after the end of the signal transmitted immediately before, y slots after the end of the signal transmitted immediately before, or immediately before It may be z frames after the end of the signal transmitted to , or it may be a combination of x, y and z.
- the transmission time length of transmissions other than the first transmission may be L symbol lengths from the x-th symbol in each slot.
- the transmission in slot #1 is the transmission timing after one symbol from the end of the signal transmitted immediately before, and the transmission timing and transmission time length are is 7 symbols long from the 0th symbol of the slot.
- the receiving node may perform blind detection of the control signal.
- Control signal resources or detection opportunities eg, CORESET (Control resource set) or search space
- CORESET Control resource set
- search space may be defined in the specification, or may be set or notified by the transmitting node.
- the receiving node performs blind detection on the control signal transmitted in the first two symbols of the slot.
- the receiving node may perform demodulation of the data signal upon detecting the control signal.
- the receiving node may identify data and/or reference signal resources based on the detection result of the control signal. For example, in FIG. 4, when the receiving node detects the control signal transmitted in the first two symbols of the slot, it may demodulate the subsequent data signal and/or the reference signal.
- the transmitting node is the base station 10 and the receiving node is the terminal 20 .
- the transmitting node is terminal 20 and the receiving node is base station 10 .
- the terminal 20 is the transmitting node and the terminal 20 is the receiving node.
- FIG. 5 is a diagram showing an example (2) of transmission and reception according to the embodiment of the present invention.
- a procedure related to the control rule A2 will be described with reference to FIG. In the above control rule A2, the operations 1) to 4) shown below may be executed.
- the transmission node may add a preamble signal to the transmission signal and transmit the signal.
- a transmission signal may be composed of at least one of a data signal, a control signal, and a reference signal.
- a transmitting node may start transmission at any timing.
- the transmitting node When the transmitting node continuously transmits a plurality of signals, if the gap between the transmitted signals is equal to or less than a predetermined value, or less than a predetermined value, the transmitting node does not have to add a preamble signal to the transmissions other than the first transmission.
- the predetermined value may be a threshold.
- the transmission timings of signals other than the initial transmission may be determined based on the immediately preceding transmission signal. For example, transmission of the next signal may be started X milliseconds after the end of the previous transmission signal.
- the receiving node may perform preamble signal detection.
- the receiving node may determine that the preamble has been detected when the received power of the preamble signal is greater than or equal to a predetermined value.
- the receiving node may perform demodulation of the transmitted signal when it detects the preamble signal.
- the receiving node may identify the resource of the transmission signal based on the detection result of the preamble signal.
- the receiving node may identify control signal resources or detection opportunities (eg, CORESET or search space) based on the detection results of the preamble signal, and perform blind detection of the control signal. Additionally, the receiving node may perform demodulation of the data signal upon detecting the control signal.
- the receiving node may identify data and/or reference signal resources from the detection result of the control signal.
- FIG. 6 is a diagram showing an example (3) of transmission and reception according to the embodiment of the present invention.
- a procedure according to the control rule B1 will be described with reference to FIG. In the above control rule B1, operations 1) to 4) shown below may be executed.
- the transmission node may transmit a transmission signal when the LBT succeeds at a predetermined transmission timing.
- the LBT may be performed just before the slot that transmits the signal.
- a transmission signal may be composed of at least one of a data signal, a control signal, and a reference signal.
- Predetermined transmission timing may be determined based on synchronized frames between transmitting and receiving nodes.
- LBT may perform power detection in a predetermined time interval immediately before transmitting a transmission signal, and may determine that it has succeeded when the received power is equal to or less than a predetermined value or less than a predetermined value.
- the predetermined value may be a threshold. When LBT fails, LBT may be performed just before the predetermined transmission timing again.
- the timing to repeatedly perform LBT until LBT succeeds may be specified in the specification, or may be set or notified in advance from the receiving node.
- the transmission node succeeds in performing LBT again it may transmit the same transmission signal as at the time of LBT failure, or may transmit a transmission signal different from that at the time of LBT failure.
- the transmission node When the transmission node continuously transmits a plurality of transmission signals, if the gap between transmission signals is equal to or less than a predetermined value or less than a predetermined value, the transmission node may not perform LBT except for the first transmission. That is, if the gap between the transmitted signal and the next transmitted signal is less than or equal to a predetermined value, then the next transmitted signal may be transmitted without performing LBT.
- the predetermined value may be a threshold.
- the transmission node continuously transmits a plurality of transmission signals if the LBT is successful, the transmission may be performed without executing the LBT for a predetermined period.
- the transmission timings of signals other than the initial transmission may be determined based on the immediately preceding transmission signal.
- the transmission timing and transmission time of signals other than the first transmission may be instructed to the transmitting node or set in advance, or notified to the receiving node or set in advance.
- the transmission timing of transmissions other than the first transmission may be x symbols after the end of the signal transmitted immediately before, y slots after the end of the signal transmitted immediately before, or immediately before It may be z frames after the end of the signal transmitted to , or it may be a combination of x, y and z.
- the transmission time length of transmissions other than the first transmission may be L symbol lengths from the x-th symbol in each slot.
- the receiving node may perform blind detection of the control signal.
- Control signaling resources or detection opportunities eg, CORESET or search space
- the receiving node performs blind detection on the control signal transmitted in the first two symbols of the slot.
- the receiving node may perform demodulation of the data signal upon detecting the control signal.
- the receiving node may identify data and/or reference signal resources based on the detection result of the control signal. For example, in FIG. 6, when the receiving node detects the control signal transmitted in the first two symbols of the slot, it may demodulate the subsequent data signal and/or reference signal.
- FIG. 7 is a diagram showing an example (4) of transmission and reception according to the embodiment of the present invention.
- a procedure relating to the control rule B2 will be described with reference to FIG. In the control rule B2, operations 1) to 4) shown below may be executed.
- the transmission node may perform transmission by adding a preamble signal to the transmission signal when the LBT is successful. For example, as shown in FIG. 7, LBT may be performed just before transmitting the preamble signal.
- a transmission signal may be composed of at least one of a data signal, a control signal, and a reference signal.
- the transmission node may start LBT and transmission at any timing. LBT may perform power detection in a predetermined time interval immediately before transmitting the preamble signal, and may determine that it has succeeded when the received power is equal to or less than a predetermined value or less than a predetermined value.
- the predetermined value may be a threshold. If LBT fails, LBT may be performed just before any transmission timing again.
- the timing to repeatedly perform LBT until LBT succeeds may be specified in the specification, or may be set or notified in advance from the receiving node.
- the transmission node succeeds in performing LBT again it may transmit the same transmission signal as at the time of LBT failure, or may transmit a transmission signal different from that at the time of LBT failure.
- the transmitting node When the transmitting node continuously transmits a plurality of signals, if the gap between the transmitted signals is equal to or less than a predetermined value, or less than a predetermined value, the transmitting node does not have to add a preamble signal to the transmissions other than the first transmission.
- the predetermined value may be a threshold.
- the transmission node When the transmission node continuously transmits a plurality of signals, if the gap between transmission signals is equal to or less than a predetermined value or less than a predetermined value, the transmission node may not perform LBT in transmissions other than the first transmission.
- the predetermined value may be a threshold.
- the transmission node When the transmission node continuously transmits a plurality of transmission signals, if the LBT is successful, the transmission may be performed without executing the LBT for a predetermined period.
- the transmission timings of signals other than the initial transmission may be determined based on the immediately preceding transmission signal. For example, transmission of the next signal may be started X milliseconds after the end of the previous transmission signal.
- the receiving node may perform preamble signal detection.
- the receiving node may determine that the preamble has been detected when the received power of the preamble signal is greater than or equal to a predetermined value.
- the receiving node may perform demodulation of the transmitted signal when it detects the preamble signal.
- the receiving node may identify the resource of the transmission signal based on the detection result of the preamble signal.
- the receiving node may identify control signal resources or detection opportunities (eg, CORESET or search space) based on the detection results of the preamble signal, and perform blind detection of the control signal. Additionally, the receiving node may perform demodulation of the data signal upon detecting the control signal.
- the receiving node may identify data and/or reference signal resources from the detection result of the control signal.
- the base station 10 or the terminal 20 autonomously selects resources for DL, UL or SL transmission, it is possible to clarify the operation of acknowledging data reception. That is, it becomes possible to implement appropriate retransmission, and improvement in transmission quality can be realized.
- the predetermined signal related to the transmission data may be a response indicating success or failure of reception or decoding corresponding to the transmission data. Success or failure may be represented by a binary number of 0 or 1, or other information indicating success or failure.
- HARQ-ACK the information in the predetermined signal
- HARQ feedback the operation of transmitting the predetermined signal
- the predetermined signal related to the received data may be a response indicating success or failure of reception or decoding corresponding to the received data. Success or failure may be represented by a binary number of 0 or 1, or other information indicating success or failure. Different information may be used for success and failure, and the information for failure may be information relating to a retransmission request or instruction.
- the information in the predetermined signal will be referred to as HARQ-ACK, and the operation of transmitting the predetermined signal will be referred to as HARQ feedback, but the present invention is not limited to this.
- the methods shown in 1) and 2) above may be called CSI measurement and reporting, and the signal used may be called CSI-RS.
- the communication device that receives the information related to the measurement may be the communication device that transmits the data, but is not limited to this, and the communication device that receives the data may receive the information related to the measurement.
- a communication device that receives a signal related to measurement of the predetermined information may be a communication device that transmits data, but is not limited to this, and a communication device that receives data transmits a signal related to measurement of the predetermined information. may receive.
- the above-described communication device provides channel state information necessary for determining parameters to be used for transmission. can be obtained. In other words, it is possible to select appropriate transmission parameters, and improve frequency utilization efficiency and transmission quality.
- Information to be measured and information related to measurement may be any of 1) to 3) shown below.
- the channel state may be information related to the target frequency, channel usage status, interference power value or level, other detectable communication devices, propagation characteristic measurement values, for example, CQI (Channel quality indicator), RI ( Rank indicator), PMI (Precoding matrix indicator), LI (Layer indicator), RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality), RSSI (Received Signal Strength Indicator), LOS (Line of sight) or NLOS (Non Line of Sight).
- CQI Channel quality indicator
- RI Rank indicator
- PMI Precoding matrix indicator
- LI Layer indicator
- RSRP Reference Signal Received Power
- RSRQ Reference Signal Received Quality
- RSSI Receiveived Signal Strength Indicator
- LOS Line of sight
- NLOS Non Line of Sight
- the information related to the position is, for example, GNSS (Global Navigation Satellite System) information, latitude and longitude, altitude, area formation angle, information indicating which zone when the plane is divided into predetermined zones, signal arrival It may be an angle.
- GNSS Global Navigation Satellite System
- the measurement object may be, for example, a signal type, sequence, ID, or resource, or may be information indicating on which measurement object the corresponding CSI was measured.
- the information to be measured or the information related to the measurement is hereinafter referred to as "CSI", but is not limited to this.
- the CSI report may include the information to be measured or the information related to the measurement.
- a node sends a CSI request, and the node that receives the CSI request reports the CSI to the node that sent the CSI request.
- the method of requesting CSI may be any of 1) to 3) shown below.
- a CSI request may be sent in a signal associated with a certain data transmission.
- a CSI request may be included in any of data signals, control signals, reference signals, and preamble signals.
- the control signal may contain information corresponding to the CSI request.
- the CSI request may be transmitted by a sequence of reference signals or a sequence of preamble signals.
- a control signal, reference signal or preamble signal containing the CSI request may be transmitted.
- the CSI request may be transmitted by the same transmission procedure as the data transmission to which the control rule A1, A2, B1 or B2 is applied.
- LBT may be performed before signaling including the CSI request.
- CSI reporting may be triggered if certain conditions are met. For example, if a data transmission is made from a node X to another node Y, and a CSI request is received by node Y during the data transmission, node Y triggers a CSI report to node X, and node X receives a CSI report. may be sent. For example, node Y may trigger a CSI report to node X and send a CSI report to node X when there is a data transmission from one node X to another node Y and there is no explicit CSI request.
- node Y triggers a CSI report to node X
- node X may send CSI reports to a) When data reception or decoding fails a predetermined number of times or for a predetermined time b) When the amount of resources for data transmission, MCS (Modulation and coding scheme) or TBS (Transport block size) exceeds or falls below a predetermined value c) When data transmission in a given time resource is notified in advance
- FIG. 8 is a diagram showing an example (1) of resources for CSI reporting in the embodiment of the present invention.
- a node requesting CSI may specify resources for CSI reporting to a node reporting CSI.
- the specified resource may be indicated in a predetermined time unit (eg, slot), or in a predetermined time, frequency or code unit (eg, symbol, PRB, cyclic shift, OCC (Orthogonal Cover Code) index).
- a predetermined time unit eg, slot
- a predetermined time, frequency or code unit eg, symbol, PRB, cyclic shift, OCC (Orthogonal Cover Code) index.
- a node requesting CSI may designate at least one of predetermined resources, that is, time, frequency, code, space, etc., as a resource for CSI reporting based on predetermined timing.
- the predetermined timing may be the synchronization timing and/or the transmission timing of the CSI request in the control rules A1 and B1, or may be the transmission timing of the CSI request in the control rules A2 and B2.
- Information indicating resources for CSI reporting may be shared with other nodes, and other nodes may use resources other than the relevant resources.
- the information may be shared only among the terminals 20 associated with the beam of the same base station 10, or the information related to the beam may be shared among the terminals 20 as well.
- Information indicating resources for CSI reporting may be shared by a single signal for multiple nodes.
- a node requesting CSI may designate a given resource based on the beam timing of the node reporting CSI.
- the designation of resources for CSI reporting may be performed by any of data signals, control signals, reference signals, or preamble signals (when the above control rules A2 and B2 are applied).
- the designation of resources for CSI reporting may be performed in any of the data signal, control signal, reference signal, or preamble signal (when the above control rules A2 and B2 are applied) corresponding to the CSI report.
- FIG. 9 is a diagram showing an example (2) of resources for CSI reporting in the embodiment of the present invention.
- a node reporting CSI may send a CSI report to a node requesting CSI using resources specified from the node requesting CSI.
- a node reporting CSI may send a CSI report to a node requesting CSI necessarily using the resources specified by the node requesting CSI.
- the node reporting CSI may use other resources to transmit the CSI report to the node requesting CSI. For example, if there are other scheduled transmissions or receptions on the same time resource as a specified resource from a node requesting CSI, the node reporting CSI may determine that the specified resource is not available. For example, in the above control rule A2 or B2, by preamble signal detection and decoding of related signals, when it is detected that at least a part of the resource specified by the node requesting CSI is used by other nodes, CSI The reporting node may determine that the specified resource is unavailable.
- the node reporting CSI may determine that the specified resource is not available. For example, by detecting the signal of the node requesting other CSI by LBT, if it is not possible to transmit in the specified resource from the node requesting CSI, the node reporting the CSI that the specified resource is not available You can judge. Also, a node reporting CSI may operate to transmit a CSI report until a predetermined timing, and may cancel the CSI report if it fails to transmit the CSI report until the predetermined timing.
- the node reporting CSI may not use any resource and may not report CSI.
- a node that reports CSI may autonomously determine resources for CSI reporting.
- the CSI reporting resource may be any resource. That is, there may be no restrictions on the timing of CSI reporting.
- FIG. 10 is a diagram showing an example of CSI reporting operation in the embodiment of the present invention.
- CSI reporting may be performed by a predetermined timing Tmax.
- Tmax may be defined by specifications, may be determined by upper layer parameters, may be determined by MAC-CE (Media Access Control-Control Element), or may be determined by a control signal (e.g. DCI (Downlink Control information) or UCI (Uplink Control Information)) or a preamble signal.
- Tmax may be defined by specifications, may be determined by upper layer parameters, may be determined by MAC-CE (Media Access Control-Control Element), or may be determined by a control signal (e.g. DCI (Downlink Control information) or UCI (Uplink Control Information)) or a preamble signal.
- DCI Downlink Control information
- UCI Uplink Control Information
- Tmax may be a different value depending on the case.
- Tmax may be a different value for each data receiving node, a different value depending on the frequency (e.g. band, carrier, cell), a service type or request (e.g. eMBB (enhanced Mobile Broadband) , URLLC (Ultra-Reliable and Low Latency Communications)) may be different values, priority (e.g., index indicating priority, value indicating priority, priority in PHY layer, priority in MAC layer ) may be different values.
- Tmax may also be applied based on when CSI is requested or when CSI is triggered.
- Tmax may be determined based on parameters related to LBT. That is, Tmax may be determined based on how long it is possible to start transmission after receiving a CSI request.
- a parameter related to LBT may be the time width of LBT, or may be the ability related to LBT.
- a resource group for CSI reporting resources is defined in advance, and a node reporting CSI from the resource group may determine CSI reporting resources.
- the resource group may be TDM or FDM (Frequency Division Multiplexed) with the data transmission resource group.
- a node sends a signal request, and the node receiving the signal request sends a corresponding signal to the node that sent the signal request.
- a signal transmitted in response to a signal request is referred to as an SRS, but is not limited to this.
- the method of requesting SRS transmission (hereinafter also referred to as “SRS request”) may be any of 1) to 3) shown below.
- a SRS request may be sent in a signal associated with a certain data transmission.
- the SRS request may be included in any of data signals, control signals, reference signals, and preamble signals.
- the control signal may contain information corresponding to the SRS request.
- the SRS request may be transmitted by a sequence of reference signals or a sequence of preamble signals.
- a control signal, reference signal or preamble signal containing the SRS request may be transmitted.
- the CSI request may be transmitted by the same transmission procedure as the data transmission to which the control rule A1, A2, B1 or B2 is applied.
- LBT may be performed before signaling including SRS request.
- SRS transmission may be triggered if a predetermined condition is met. For example, when data is transmitted from a certain node X to another node Y, and an SRS request is received by the node Y during the data transmission, the node Y triggers SRS transmission to the node X and sends the SRS to the node X. You may send. For example, if there is a data transmission from one node X to another node Y and there is no explicit SRS request, node Y may trigger an SRS transmission to node X and send an SRS to node X.
- a node X when a node X transmits data to another node Y and satisfies any of the following conditions a) b) c), the node Y triggers an SRS transmission to the node X, and the node X may transmit the SRS to a) When data reception or decoding fails a predetermined number of times or for a predetermined time b) When the amount of resources for data transmission, MCS (Modulation and coding scheme) or TBS (Transport block size) exceeds or falls below a predetermined value c) When data transmission in a given time resource is notified in advance
- a node requesting SRS transmission may designate a resource for SRS transmission to a node transmitting SRS.
- the designated resource may be indicated in a predetermined time unit (eg, slot), or may be indicated in a predetermined time, frequency, or code unit (eg, symbol, PRB, cyclic shift, OCC index).
- a node requesting SRS transmission may specify SRS transmission resources for a node transmitting SRS.
- SRS may be transmitted aperiodically in response to a certain SRS request.
- SRS may be transmitted semi-persistently with a signal that activates SRS transmission as a trigger.
- a certain SRS request may be an activation signal, periodic transmission of SRS may continue for a predetermined number of times or for a predetermined period of time, or periodic transmission of SRS may continue until a deactivation signal is transmitted. good too.
- a node requesting SRS transmission may designate at least one of predetermined resources, that is, time, frequency, code, space, etc., as SRS resources based on predetermined timing.
- the predetermined timing may be the synchronization timing and/or the SRS request transmission timing in the control rules A1 and B1, or may be the SRS request transmission timing in the control rules A2 and B2.
- Information indicating SRS transmission resources may be shared with other nodes, and other nodes may use resources other than the relevant resources.
- the information may be shared only among the terminals 20 associated with the beam of the same base station 10, or the information related to the beam may be shared among the terminals 20 as well.
- Information indicating SRS transmission resources may be shared by a single signal for a plurality of nodes.
- a node requesting SRS may designate a predetermined resource based on the timing of the beam of the node transmitting SRS. Also, the information indicating the SRS request and the SRS transmission resource may be reported collectively to a plurality of nodes, and orthogonal resources may be specified between the notified nodes.
- Usage may be associated with the SRS transmission resource, and parameters, resources, operations, etc. may differ based on the associated usage.
- the application may be defined for each CSI type, and may be CSI measurement, beam control for nodes requesting SRS, beam control for nodes transmitting SRS, and the like.
- the designation of resources for SRS transmission may be performed by any of data signals, control signals, reference signals, or preamble signals (when the above control rules A2 and B2 are applied).
- the designation of resources for SRS transmission may be made in any of data signals, control signals, reference signals, or preamble signals (when the above control rules A2 and B2 are applied) corresponding to the SRS request.
- the node that transmits the SRS may transmit the SRS to the node that requests the SRS using the resources specified by the node that requests the SRS.
- a node transmitting an SRS may always use resources specified by the node requesting the SRS to transmit the SRS to the node requesting the SRS.
- the node transmitting the SRS may use other resources to transmit the SRS to the node requesting the SRS. For example, if there are other scheduled transmissions or receptions on the same time resource as the resource specified by the node requesting the SRS, the node transmitting the SRS may determine that the specified resource cannot be used. For example, in the control rule A2 or B2, when it is detected that at least part of the resource specified by the node requesting SRS is used by other nodes by preamble signal detection and decoding of related signals, SRS is The transmitting node may determine that the specified resource is unavailable.
- the node sending the SRS may determine that the specified resource is not available. For example, LBT detects the signal of another node, if the transmission in the resource specified from the node requesting SRS is not possible, the node transmitting the SRS may determine that the specified resource is not available . Also, the node that transmits the SRS may operate to transmit the SRS until a predetermined timing, and cancel the SRS transmission if the SRS cannot be transmitted until the predetermined timing.
- the node that transmits the SRS may not use any resource and may not perform SRS transmission.
- a node that transmits SRS may autonomously determine resources for SRS transmission.
- the SRS transmission resource may be any resource. That is, there may be no restrictions on the timing of SRS transmission.
- SRS transmission may be performed by a predetermined timing Tmax.
- Tmax may be defined by specifications, may be determined by higher layer parameters, may be determined by MAC-CE, may be determined by control signals (eg DCI, UCI or preamble signals) .
- Tmax may be a different value depending on the case.
- Tmax may be a different value for each node transmitting SRS, a different value depending on the frequency (e.g. band, carrier, cell), service type or request (e.g. eMBB, URLLC). It may be a different value depending on the priority (for example, an index indicating priority, a value indicating priority, a priority in the PHY layer, a priority in the MAC layer).
- Tmax may also be applied based on when to request SRS or when SRS is triggered.
- Tmax may be determined based on parameters related to LBT. That is, Tmax may be determined based on how long it is possible to start transmission after receiving an SRS request.
- a parameter related to LBT may be the time width of LBT, or may be the ability related to LBT.
- a resource group for SRS transmission resources is defined in advance, and a node transmitting SRS from the resource group may determine SRS transmission resources.
- the resource group may be TDM or FDMed with the data transmission resource group.
- control rule A1 the control rule A2, the control rule B1, and the control rule B2
- transmission signals collide in a certain terminal 20 may be cases shown in A) to H) below. It should be noted that at least two of the following A) to H) may occur in combination.
- the communication device A For communication between the communication device A and the communication device B (for example, communication between the base station 10 and the terminal 20), the communication device A autonomously assigns resources for transmitting data to the communication device B.
- the communication device A For communication between the communication device A and the communication device B (for example, communication between the base station 10 and the terminal 20), the communication device A autonomously assigns resources for transmitting data to the communication device B.
- the communication device receives a plurality of signal transmission requests from other communication devices, and controls transmission of signals corresponding to the plurality of requests based on a predetermined condition.
- a predetermined condition may For example, in the case of condition X, multiplex and transmit, and in the case of condition Y, drop one of them.
- the communication device may transmit a plurality of requests for signal transmission to other communication devices, and perform an operation related to reception of signals corresponding to the plurality of requests based on a predetermined condition.
- At least one request for signal transmission is received from another communication device and a data signal to be transmitted is generated, and based on predetermined conditions, the signal corresponding to the request and the You may perform control regarding transmission of a data signal.
- at least one request for signal transmission may be transmitted to another communication device, and control related to reception of the signal corresponding to the request and the data signal of the other communication device may be performed based on a predetermined condition. .
- a signal corresponding to a signal request may be a HARQ-ACK, ie a predetermined signal related to transmitted or received data.
- the signal may be a reception or decoding success/failure response corresponding to the transmitted data.
- Success or failure may be represented by a binary number of 0 or 1, or other information that signifies success or failure. Different information may be used for success and failure, and the information for failure may be information relating to a retransmission request or instruction.
- the signal is referred to as HARQ-ACK, and the operation of sending back the signal is referred to as HARQ feedback, but the present invention is not limited to this.
- the signal corresponding to the signal request may be CSI, that is, a signal containing information to be measured or information related to measurement.
- CSI may indicate channel conditions, may be information on the frequency of interest, channel usage, interference power value, interference power level, detectable other communication devices or propagation characteristic measurements, CQI , RI, PMI, LI, RSRP, RSRQ, USSI, LOS or NLOS.
- the CSI may be information related to the position, GNSS information, latitude and longitude, altitude, area formation angle, information indicating which division it is located in when the plane is divided into predetermined divisions (zones) or Information indicating a signal arrival angle may be used.
- the CSI may be information indicating a measurement target, may be information indicating a signal type, a signal sequence, a signal ID, or a signal resource, and may be information indicating the CSI based on any signal. may be information indicating whether the The information is referred to as CSI, and the operation of sending back the information is referred to as CSI reporting, but the present invention is not limited to this.
- the signal corresponding to the signal request may be the SRS, that is, the signal used for CSI measurement or the sequence signal.
- SRS transmission the operation of transmitting the signal, but it is not limited to this.
- a data signal may be a data signal coming from an upper layer, or may be MAC-PDU (Protocol data unit) or MAC-SDU (Service data unit). Also, the data signal may be a transport block, or may be a signal for requesting, instructing, notifying, or recommending another communication device. Also, the data signal may be a signal that is not caused by a signal from the destination communication device.
- MAC-PDU Protocol data unit
- MAC-SDU Service data unit
- the data signal may be a transport block, or may be a signal for requesting, instructing, notifying, or recommending another communication device. Also, the data signal may be a signal that is not caused by a signal from the destination communication device.
- the following proposals can be applied to communications associated with any of UL data, DL data, SL data or other data, and communication devices are also described as nodes.
- Either the communication device or the node may be the base station 10 or the terminal 20 .
- a resource, time interval or window may include an LBT interval or may not include an LBT period.
- a signal corresponding to a signal request and a data signal may be described as a signal to be transmitted together.
- the signal corresponding to the signal request and the data signal may be any of A)-H) above, or a combination of A)-H) above.
- any proposal may be applied to the combination of A) to H) above, and a plurality of proposals may be applied in combination.
- Proposal 0 Predetermined conditions for executing the control in A) to H) above Proposal 1) Method of multiplexing and transmitting a plurality of signals to be transmitted Proposal 2) Dropping at least one of the plurality of signals to be transmitted and the rest 3) Proposed method for multiplexing and transmitting 3) Proposal for postponing at least one of a plurality of signals to be transmitted and multiplexing and transmitting the rest 4) Proposal for transmitting multiple signals to be transmitted on separate channels 5) Proposal for transmitting multiple signals to be transmitted Proposal for dropping at least one of the plurality of transmitted signals and transmitting the rest on separate channels 6) Proposal for deferring at least one of the plurality of transmitted signals and sending the rest on separate channels 7) Proposal 1)-Proposal 6) is switched based on Proposal 0) Proposal 8) Receiving side operation proposal 9) Control method so that multiple signals to be transmitted do not occur
- Proposal 0 will be explained below.
- the predetermined conditions for executing the control in A) to H) above may be any one or a combination of 1) to 9) shown below.
- the overlapping region may be at least one of time, frequency, code and space.
- the time period may be a time period during which HARQ feedback, CSI reporting or SRS transmission is requested.
- the predetermined condition may be met when at least part of the time intervals of the two signals overlap.
- it may be a time interval in which transmission may be performed by a predetermined timing Tmax for a signal request.
- the time interval may be a time interval with Tmax indicating a period during which CSI reporting may be performed, as shown in FIG.
- the CSI report in FIG. 10 may be replaced with HARQ feedback or SRS transmission, and it may be a time interval by Tmax that indicates a period during which HARQ feedback or SRS transmission may be performed.
- the time interval may be a time interval required for data transmission, or may be a PDB (Packet Delay Budget) in the case where the data signal has a delay regulation. Also, whether the (eg, designated) time resources (eg, slots) on which transmissions should be made are the same.
- PDB Packet Delay Budget
- the trigger for the transmission may be the data reception timing corresponding to HARQ feedback, the reception timing of the CSI request, the reception timing of the SRS request, or the reception timing of the SRS request. packet arrival timing.
- Conditions relating to the type and/or priority of signals to be transmitted may be defined, set, or associated with information, and whether or not the priority is the same may be the predetermined condition.
- the predetermined condition may be whether the signal to be transmitted is a signal corresponding to a signal request or a data signal.
- the predetermined condition may be a condition based on the reception level in communication with the destination.
- the predetermined condition may be a condition based on the interference level or degree of congestion of the frequency band to be used.
- the predetermined condition may be a condition related to the capability of the transmission source communication device or a condition related to the type of the transmission source communication device.
- the predetermined condition may be a condition related to the capability of the destination communication device or a condition related to the type of the destination communication device.
- It may be a condition related to instructions received from the destination or requestor of the signal.
- It may be a condition related to the amount of information that can be transmitted or the amount of information included in a signal that transmits information.
- the predetermined conditions in Proposal 0 may include at least conditions related to the time domain.
- the communication device may multiplex and transmit a plurality of signals to be transmitted.
- the multiplexed resource may be any one of 1) to 6) shown below.
- FIG. 11 is a diagram showing an example (1) of signal transmission according to the embodiment of the present invention.
- signal #1 and signal #2 may be multiplexed and the multiplexed signal may be transmitted using the resource of signal #2.
- a signal multiplexed on resources corresponding to information requested or generated later in the time domain may be transmitted.
- FIG. 12 is a diagram showing an example (2) of signal transmission in the embodiment of the present invention.
- FIG. 12 shows an example in which a section in which the transmission section of signal #1 and the transmission section of signal #2 overlap is the predetermined time section.
- It may be a resource included in a group of resources defined or set in advance for multiplexing.
- frequency resources eg, serving cell, bandwidth part, PRB set, sub-channel
- constraints eg, transmitted on the same frequency resource as the request.
- FIG. 13 is a diagram showing an example (3) of signal transmission according to the embodiment of the present invention.
- FIG. 13 shows an example in which signal #1 and signal #2 are multiplexed and transmitted using a resource specified by another communication device. For example, it may be a resource corresponding to a designation or notification associated with information requested or generated later in the time domain.
- It may be a resource determined based on a predetermined condition described in Proposal 0).
- the method of multiplexing multiple signals may be either 1) or 2) shown below.
- Predefined resource mapping may be applied. For example, mapping may be performed based on predetermined conditions as described in Proposal 0). Also, mapping may be performed in the order of HARQ-ACK, data, and CSI in descending order of priority.
- a predetermined resource amount determination may be made for each piece of information. For example, resource amount determination may be made based on predetermined conditions described in Proposal 0). Also, for example, resource amounts may be determined in the order of HARQ-ACK, data, and CSI in descending order of priority. Also, for example, parameters related to resource amount determination may be defined, set, or notified.
- FIG. 14 is a diagram showing an example (4) of signal transmission according to the embodiment of the present invention. As shown in FIG. 14, if signal #1 and signal #2 overlap in the time domain, signal #1 may be dropped and signal #2 transmitted. Any of the methods 1) to 5) shown below may be used as the method for dropping the signal.
- the determination of the information to be dropped may be performed based on the predetermined conditions described in proposal 0), and the communication device may multiplex and transmit the information that is not dropped. For example, when HARQ-ACK, data and CSI are multiple signals to be transmitted, CSI may be dropped and HARQ-ACK and data may be multiplexed and transmitted.
- the communication device may set one or one type of signal not to be dropped and drop other signals.
- the communication device may have multiple signals that are not dropped.
- the dropped signal may be all of the signal or part of the signal. For example, only sections that overlap at least in the time domain may be dropped.
- the information contained in the dropped signal eg, channel
- the X bits may be dropped and the Y bits may be multiplexed with the non-dropped signal.
- the X bits may be CSI and the Y bits may be HARQ-ACK.
- the communication device may defer at least one of the plurality of transmitted signals and multiplex and transmit the remainder. Any of the methods 1) to 6) shown below may be used for deferring signaling.
- the determination of information to be deferred may be performed based on the predetermined conditions described in Proposal 0), and the communication device may multiplex and transmit information that has not been deferred. For example, when HARQ-ACK, data and CSI are multiple signals to be transmitted, CSI may be deferred and HARQ-ACK and data may be multiplexed and transmitted.
- the communication device may have one or one type of signal that is not deferred, and defer other signals.
- the communication device may have multiple non-deferred signals.
- multiplexing may be performed according to suggestion 1).
- the resource to be deferred to may be a resource included in a predetermined time period (e.g., a time period during which HARQ feedback, CSI reporting, SRS transmission or data transmission is requested) or may be predefined or specified for deferral. It may be a resource included in a set resource group, a selectable resource, that is, a resource without restrictions, or a resource specified or notified from another communication device, It may be a resource determined based on the conditions described in Proposal 0).
- the deferred signal may be all of the signal or part of the signal. For example, only intervals that overlap at least in the time domain may be deferred.
- the information contained in the deferred signal eg, channel
- the X bits may be deferred and the Y bits may be multiplexed with the non-dropped signal.
- the X bits may be CSI and the Y bits may be HARQ-ACK.
- FIG. 15 is a diagram showing an example (5) of signal transmission according to the embodiment of the present invention.
- signal #1 and signal #2 overlap in the time domain, but may be transmitted in their respective channels.
- the communication device may simultaneously transmit multiple transmitted signals on separate channels. Simultaneous transmission may mean that each overlaps at least in the time domain.
- the communication device may transmit the multiple transmitted signals on separate channels if the multiple transmitted signals are present in the same time interval.
- the communication device may transmit the plurality of signals using the same resource without changing the resource of each of the plurality of signals to be transmitted.
- the transmission power of each signal may be determined based on the conditions described in Proposal 0).
- Proposal 5 will be explained below.
- the communication device may drop at least one of the multiple transmitted signals and transmit the rest on separate channels. Any of the methods 1) to 5) shown below may be used as the method for dropping the signal.
- the decision to drop the information may be performed based on the predetermined conditions described in Proposal 0), and the communication device may transmit the non-dropped information on a separate channel. For example, when HARQ-ACK, data and CSI are multiple signals to transmit, CSI may be dropped and HARQ-ACK and data may be transmitted on separate channels.
- the communication device may set one or one type of signal not to be dropped and drop other signals.
- the communication device may have multiple signals that are not dropped.
- transmission of each piece of information may be performed on a separate channel.
- the dropped signal may be all of the signal or part of the signal. For example, only sections that overlap at least in the time domain may be dropped.
- the information contained in the dropped signal e.g., channel
- the X bits may be dropped and the Y bits and the undropped signal may be sent in separate channels.
- the X bits may be CSI and the Y bits may be HARQ-ACK.
- Proposal 6 will be explained below.
- the communication device may defer at least one of the multiple transmitted signals and transmit the rest on separate channels. Any of the methods 1) to 6) shown below may be used for deferring signaling.
- the determination of information to be deferred may be performed based on predetermined conditions described in Proposal 0), and the communication device may transmit non-deferred information on a separate channel. For example, when HARQ-ACK, data and CSI are multiple signals to transmit, CSI may be deferred and HARQ-ACK and data may be transmitted on separate channels.
- the communication device may have one or one type of signal that is not deferred, and defer other signals.
- the communication device may have multiple non-deferred signals.
- transmission of each piece of information may be performed on a separate channel.
- the resource to be deferred to may be a resource included in a predetermined time period (e.g., a time period during which HARQ feedback, CSI reporting, SRS transmission or data transmission is requested) or may be predefined or specified for deferral. It may be a resource included in a set resource group, a selectable resource, that is, a resource without restrictions, or a resource specified or notified from another communication device, It may be a resource determined based on the conditions described in Proposal 0).
- the deferred signal may be all of the signal or part of the signal. For example, only intervals that overlap at least in the time domain may be deferred.
- the information contained in the deferred signal eg, channel
- the X bits may be deferred and the Y bits and the non-dropped signal may be sent in separate channels.
- the X bits may be CSI and the Y bits may be HARQ-ACK.
- Proposal 7 will be explained below.
- the communication device may switch and apply proposal 1) to proposal 6) based on proposal 0).
- the communication device may apply proposal 1) to multiplex and transmit, or the information may be If HARQ-ACK and SRS, the communication device may apply proposal 2) to drop SRS and send HARQ-ACK.
- the communication device may apply proposal 1) to multiplex and transmit, or the priority of information is different, the communication device may apply suggestion 2) to drop information with lower priority and transmit information with higher priority.
- the communication device may apply proposal 4) to transmit on separate channels if it has a simultaneous transmission function for separate channels, or may transmit on separate channels. If the communication device does not have a simultaneous channel transmission function, the communication device may apply proposal 1) to multiplex and transmit.
- a receiving node may perform a receiving operation on the assumption that signals are multiplexed and transmitted. For example, the transmitting node may notify the receiving node that it is multiplexed and/or what is being multiplexed, or the transmitting node may notify the receiving node in either a preamble or a control signal. . Limited to multiplexing of signals for signal requests and signals for other signal requests, the fact that multiplexing and/or what is being multiplexed may be notified from the transmitting node to the receiving node, or the preamble Alternatively, it may be notified from the transmitting node to the receiving node by either a control signal.
- the receiving node may perform the receiving operation assuming that the signals are not multiplexed. Also, if reception fails, the receiving node may request the signal again. Also, assuming that the transmission of the signal has been deferred, the receiving node may operate to receive the deferred signal.
- the communication device may control so that multiple signals to be transmitted are not generated.
- the communication device may not transmit the CSI request to the node that transmitted the CSI request until the timing of receiving the corresponding CSI report.
- the communication device may not be able to transmit the SRS request to the node that transmitted the data until the corresponding HARQ feedback reception timing.
- the communication device may not generate a data signal at the same timing as the corresponding transmission signal after transmitting a certain signal request.
- data signals may be transmitted using resources that do not overlap at least in the time domain with the corresponding transmission signals.
- the operation of the transmitting side device and the operation of the receiving side device when transmission signals collide can be clarified.
- the base stations 10 and terminals 20 contain the functionality to implement the embodiments described above. However, each of the base station 10 and the terminal 20 may have only the functions proposed in any of the embodiments.
- FIG. 16 is a diagram showing an example of the functional configuration of the base station 10.
- the base station 10 has a transmitting section 110, a receiving section 120, a setting section 130, and a control section 140.
- the functional configuration shown in FIG. 16 is merely an example. As long as the operation according to the embodiment of the present invention can be executed, the functional division and the names of the functional units may be arbitrary.
- the transmitting unit 110 and the receiving unit 120 may be called a communication unit.
- the transmission unit 110 includes a function of generating a signal to be transmitted to the terminal 20 side and wirelessly transmitting the signal.
- the receiving unit 120 includes a function of receiving various signals transmitted from the terminal 20 and acquiring, for example, higher layer information from the received signals.
- the transmitting unit 110 has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL/UL control signals, DL data, etc. to the terminal 20 . Also, the transmission unit 110 transmits the setting information and the like described in the embodiment.
- the setting unit 130 stores preset setting information and various setting information to be transmitted to the terminal 20 in the storage device, and reads them from the storage device as necessary.
- the control unit 140 performs overall control of the base station 10 including, for example, control related to signal transmission/reception and control related to LBT. It should be noted that the functional unit related to signal transmission in control unit 140 may be included in transmitting unit 110 , and the functional unit related to signal reception in control unit 140 may be included in receiving unit 120 . Also, the transmitting unit 110 and the receiving unit 120 may be called a transmitter and a receiver, respectively.
- FIG. 17 is a diagram showing an example of the functional configuration of the terminal 20.
- the terminal 20 has a transmitting section 210, a receiving section 220, a setting section 230, and a control section 240.
- the functional configuration shown in FIG. 17 is merely an example. As long as the operation according to the embodiment of the present invention can be executed, the functional division and the names of the functional units may be arbitrary.
- the transmitting unit 210 and the receiving unit 220 may be called a communication unit.
- the transmission unit 210 creates a transmission signal from the transmission data and wirelessly transmits the transmission signal.
- the receiving unit 220 wirelessly receives various signals and acquires a higher layer signal from the received physical layer signal. Also, the transmitting unit 210 transmits HARQ-ACK, and the receiving unit 220 receives the setting information and the like described in the embodiment.
- the setting unit 230 stores various types of setting information received from the base station 10 by the receiving unit 220 in the storage device, and reads them from the storage device as necessary.
- the setting unit 230 also stores preset setting information.
- the control unit 240 performs overall control of the terminal 20 including control related to signal transmission/reception and control related to LBT. It should be noted that the functional unit related to signal transmission in control unit 240 may be included in transmitting unit 210 , and the functional unit related to signal reception in control unit 240 may be included in receiving unit 220 . Also, the transmitting section 210 and the receiving section 220 may be called a transmitter and a receiver, respectively.
- each functional block may be implemented using one device that is physically or logically coupled, or directly or indirectly using two or more devices that are physically or logically separated (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.
- the base station 10, the terminal 20, etc. may function as a computer that performs processing of the wireless communication method of the present disclosure.
- FIG. 18 is a diagram illustrating an example of hardware configurations of the base station 10 and the terminal 20 according to an embodiment of the present disclosure.
- the base station 10 and terminal 20 described above are physically configured as a computer device including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. good too.
- the term "apparatus” can be read as a circuit, device, unit, or the like.
- the hardware configuration of the base station 10 and terminal 20 may be configured to include one or more of each device shown in the figure, or may be configured without some devices.
- Each function of the base station 10 and the terminal 20 is performed by the processor 1001 performing calculations and controlling communication by the communication device 1004 by loading predetermined software (programs) onto hardware such as the processor 1001 and the storage device 1002. or by controlling at least one of data reading and writing in the storage device 1002 and the auxiliary storage device 1003 .
- the processor 1001 for example, operates an operating system and controls the entire computer.
- the processor 1001 may be configured with a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like.
- CPU central processing unit
- the control unit 140 , the control unit 240 and the like described above may be implemented by the processor 1001 .
- the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the auxiliary storage device 1003 and the communication device 1004 to the storage device 1002, and executes various processes according to them.
- programs program codes
- software modules software modules
- data etc.
- the program a program that causes a computer to execute at least part of the operations described in the above embodiments is used.
- control unit 140 of base station 10 shown in FIG. 16 may be implemented by a control program stored in storage device 1002 and operated by processor 1001 .
- FIG. Processor 1001 may be implemented by one or more chips.
- the program may be transmitted from a network via an electric communication line.
- the storage device 1002 is a computer-readable recording medium, for example, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. may be configured.
- the storage device 1002 may also be called a register, cache, main memory (main storage device), or the like.
- the storage device 1002 can store executable programs (program code), software modules, etc. for implementing a communication method according to an embodiment of the present disclosure.
- the auxiliary storage device 1003 is a computer-readable recording medium, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, a Blu -ray disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, and/or the like.
- the storage medium described above may be, for example, a database, server, or other suitable medium including at least one of storage device 1002 and secondary storage device 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, a duplexer, a filter, a frequency synthesizer, etc., in order to realize at least one of, for example, frequency division duplex (FDD) and time division duplex (TDD).
- FDD frequency division duplex
- TDD time division duplex
- the transceiver may be physically or logically separate implementations for the transmitter and receiver.
- 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 (for example, 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 storage device 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 base station 10 and the terminal 20 include hardware such as microprocessors, digital signal processors (DSPs), ASICs (Application Specific Integrated Circuits), PLDs (Programmable Logic Devices), and FPGAs (Field Programmable Gate Arrays). , and part or all of each functional block may be implemented by the hardware.
- processor 1001 may be implemented using at least one of these pieces of hardware.
- a receiving unit that receives a plurality of requests to transmit signals in resources autonomously selected by other communication devices from the other communication devices;
- a communication device comprising: a control unit that executes control related to transmission of a plurality of signals respectively corresponding to the plurality of requests; and a transmission unit that transmits at least part of the plurality of signals to the other communication device according to is provided.
- the operation of the transmitting device and the operation of the receiving device when transmission signals collide are clarified.
- the operation of the transmitting device and the operation of the receiving device when transmission signals collide are clarified.
- the control section may multiplex the plurality of signals and cause the transmission section to transmit the multiple signals.
- the transmission unit may multiplex and transmit the plurality of signals in a resource corresponding to a later requested signal among the plurality of signals.
- the control unit may drop or postpone transmission of at least one of the plurality of signals, multiplex the remaining signals of the plurality of signals, and cause the transmission unit to transmit the multiplexed signals.
- the control unit causes the transmission unit to multiplex and transmit the plurality of signals. If the priorities are different, the lower priority signal may be dropped and the higher priority signal may be transmitted to the transmitter.
- a receiving procedure for receiving a plurality of requests to transmit a signal in a resource autonomously selected by another communication device from the other communication device; and a transmission procedure for transmitting at least part of the plurality of signals to the other communication device is provided.
- the operation of the transmitting device and the operation of the receiving device when transmission signals collide are clarified.
- the operation of the transmitting device and the operation of the receiving device when transmission signals collide are clarified.
- the operations of a plurality of functional units may be physically performed by one component, or the operations of one functional unit may be physically performed by a plurality of components.
- the processing order may be changed as long as there is no contradiction.
- the base station 10 and the terminal 20 have been described using functional block diagrams for convenience of explanation of processing, such devices may be implemented in hardware, software, or a combination thereof.
- the software operated by the processor of the base station 10 according to the embodiment of the present invention and the software operated by the processor of the terminal 20 according to the embodiment of the present invention are stored in random access memory (RAM), flash memory, read-only memory, respectively. (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server, or any other appropriate storage medium.
- notification of information is not limited to the aspects/embodiments described in the present disclosure, and may be performed using other methods.
- notification of information includes physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, It may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof.
- RRC signaling may also be called an RRC message, for example, RRC It may be a connection setup (RRC Connection Setup) message, an RRC connection reconfiguration message, or the like.
- Each aspect/embodiment described in the present disclosure includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system) system), FRA (Future Radio Access), NR (new Radio), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark) )), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), and other suitable systems and extended It may be applied to at least one of the next generation systems. Also, a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G, etc.).
- a specific operation performed by the base station 10 in this specification may be performed by its upper node in some cases.
- various operations performed for communication with terminal 20 may be performed by base station 10 and other network nodes other than base station 10 (eg, but not limited to MME or S-GW).
- base station 10 e.g, but not limited to MME or S-GW
- the other network node may be a combination of a plurality of other network nodes (for example, MME and S-GW).
- Information, signals, etc. described in the present disclosure may 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/output information and the like can be overwritten, updated, or appended. The output information and the like may be deleted. The entered information and the like may be transmitted to another device.
- the determination in the present disclosure may be performed by a value represented by 1 bit (0 or 1), may be performed by a boolean value (Boolean: true or false), or may be performed by comparing numerical values (e.g. , comparison with a predetermined value).
- 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 at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.) to website, 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 base station
- base station fixed station
- NodeB nodeB
- eNodeB eNodeB
- gNodeB gNodeB
- a base station can accommodate one or more (eg, three) cells.
- the overall coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being associated with a base station subsystem (e.g., an indoor small base station (RRH:
- RRH indoor small base station
- the term "cell” or “sector” refers to part or all of the coverage area of at least one of the base stations and base station subsystems serving 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 object may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile object (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 IoT (Internet of Things) device such as a sensor.
- IoT Internet of Things
- the base station in the present disclosure may be read as a user terminal.
- communication between a base station and a user terminal is replaced with communication between a plurality of terminals 20 (for example, D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.)
- the terminal 20 may have the functions of the base station 10 described above.
- 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.
- user terminals in the present disclosure may be read as base stations.
- the base station may have the functions that the above-described user terminal has.
- 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” may include considering that some action is “judgment” and “decision”.
- judgment (decision) may be read as “assuming”, “expecting”, “considering”, or the like.
- 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 optical (both visible and invisible) regions, and the like.
- the reference signal can also be abbreviated as RS (Reference Signal), 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, reference to a first and second element does not imply that only two elements can be employed or that the first element must precede the second element in any way.
- 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 of a fixed length of time (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 configuration, transceiver It may indicate at least one of certain filtering operations performed in the frequency domain, certain windowing operations performed by the transceiver in the time domain, and/or the like.
- SCS subcarrier spacing
- TTI transmission time interval
- transceiver It may indicate at least one of certain filtering operations performed in the frequency domain, certain windowing operations performed by the transceiver in the time domain, and/or the like.
- a slot may consist of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time domain.
- 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.
- PDSCH (or PUSCH) transmitted in time units larger than minislots 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
- TTI Transmission Time Interval
- TTI Transmission Time Interval
- one slot or one minislot may be called a TTI.
- TTI Transmission Time Interval
- at least one of the subframe and TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (eg, 1-13 symbols), or a period longer than 1 ms may be Note that the unit representing the TTI may be called a slot, mini-slot, or the like instead of a subframe.
- TTI refers to, for example, the minimum scheduling time unit in wireless communication.
- the base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each terminal 20) to each terminal 20 on a TTI basis.
- radio resources frequency bandwidth, transmission power, etc. that can be used by each terminal 20
- TTI is not limited to this.
- a TTI may be a transmission time unit such as a channel-encoded data packet (transport block), code block, or codeword, or may be a processing unit such as scheduling and link adaptation. 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 or more TTIs may be the minimum scheduling time unit. Also, the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
- a TTI having 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, or the like.
- a TTI that is shorter than a normal TTI may 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 the like.
- the long TTI (e.g., normal TTI, subframe, etc.) may be replaced with a TTI having a time length exceeding 1 ms
- the short TTI e.g., shortened TTI, etc.
- a TTI having the above TTI length may be read instead.
- a resource block is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers in the frequency domain.
- the number of subcarriers included in the RB may be the same regardless of the numerology, and may be 12, for example.
- the number of subcarriers included in an RB may be determined based on numerology.
- 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 (PRBs), sub-carrier groups (SCGs), resource element groups (REGs), PRB pairs, RB pairs, etc. may be called.
- PRBs physical resource blocks
- SCGs sub-carrier groups
- REGs resource element groups
- PRB pairs RB pairs, etc. may be called.
- a resource block may be composed of one or more resource elements (RE: Resource Element).
- RE Resource Element
- 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) may represent a subset of contiguous common resource blocks (RBs) for a certain numerology on a certain carrier.
- 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.
- the BWP may include a BWP for UL (UL BWP) and a BWP for DL (DL BWP).
- UL BWP UL BWP
- DL BWP DL BWP
- One or more BWPs may be configured for terminal 20 within one carrier.
- At least one of the configured BWPs may be active, and the terminal 20 may not expect to transmit or receive a given signal/channel outside the active BWP.
- “cell”, “carrier”, etc. in the present disclosure may be read as "BWP”.
- radio frames, subframes, slots, minislots and symbols described above are only examples.
- the number of subframes contained in a radio frame the number of slots per subframe or radio frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, the number of Configurations such as the number of subcarriers, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc.
- CP cyclic prefix
- 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.”
- 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.
- the base station 10 and the terminal 20, or the transmission node and the reception node are examples of communication devices.
- CSI-RS is an example of a CSI reference signal.
- base station 110 transmitting unit 120 receiving unit 130 setting unit 140 control unit 20 terminal 210 transmitting unit 220 receiving unit 230 setting unit 240 control unit 30 core network 1001 processor 1002 storage device 1003 auxiliary storage device 1004 communication device 1005 input device 1006 output device
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Abstract
Description
2)通信装置からデータを受信し、受信データに係る所定の信号を送信する
2)通信装置に信号を送信し、当該送信信号に基づく測定に係る情報を当該通信装置から受信する
3)通信装置から受信した信号に基づいて、所定の情報の測定に係る信号を当該通信装置に送信する
4)通信装置に信号を送信し、当該送信信号に対応する、所定の情報の測定に係る信号を当該通信装置から受信する
a)データ受信又はデコードが所定回数又は所定時間失敗した場合
b)データ送信のリソース量、MCS(Modulation and coding scheme)又はTBS(Transport block size)が所定値を上回った場合又は下回った場合
c)所定の時間リソースにおけるデータ送信が予め通知された場合
a)データ受信又はデコードが所定回数又は所定時間失敗した場合
b)データ送信のリソース量、MCS(Modulation and coding scheme)又はTBS(Transport block size)が所定値を上回った場合又は下回った場合
c)所定の時間リソースにおけるデータ送信が予め通知された場合
B)HARQフィードバックとSRS送信とが衝突
C)CSI報告とSRS送信とが衝突
D)CSI報告とCSI報告とが衝突
E)SRS送信とSRS送信とが衝突
F)HARQフィードバックとデータ送信とが衝突
G)CSI報告とデータ送信とが衝突
H)SRS送信とデータ送信とが衝突
提案1)複数の送信する信号を多重して送信する方法
提案2)複数の送信する信号の少なくとも一つをドロップし、残りを多重して送信する方法
提案3)複数の送信する信号の少なくとも一つを延期し、残りを多重して送信する方法
提案4)複数の送信する信号を、個別のチャネルで送信する方法
提案5)複数の送信する信号の少なくとも一つをドロップし、残りを個別のチャネルで送信する方法
提案6)複数の送信する信号の少なくとも一つを延期し、残りを個別のチャネルで送信する方法
提案7)提案1)-提案6)を提案0)に基づいて切り替えて適用する方法
提案8)受信側の動作
提案9)送信する信号が複数発生しないように制御する方法
7)延期される信号は、信号のすべてであってもよいし、信号の一部であってもよい。例えば、少なくとも時間領域でオーバラップする区間のみを延期するとしてもよい。あるいは、延期される信号(例えば、チャネル)に含まれる情報がXビットとYビットとに分けられる場合、Xビットは延期され、Yビットはドロップされない信号と多重して送信されてもよい。例えばXビットはCSIであり、YビットはHARQ-ACKであってもよい。
7)延期される信号は、信号のすべてであってもよいし、信号の一部であってもよい。例えば、少なくとも時間領域でオーバラップする区間のみを延期するとしてもよい。あるいは、延期される信号(例えば、チャネル)に含まれる情報がXビットとYビットとに分けられる場合、Xビットは延期され、Yビット及びドロップされない信号は個別のチャネルで送信されてもよい。例えばXビットはCSIであり、YビットはHARQ-ACKであってもよい。
次に、これまでに説明した処理及び動作を実行する基地局10及び端末20の機能構成例を説明する。基地局10及び端末20は上述した実施例を実行する機能を含む。ただし、基地局10及び端末20はそれぞれ、実施例のうちのいずれかの提案の機能のみを備えることとしてもよい。
図16は、基地局10の機能構成の一例を示す図である。図16に示されるように、基地局10は、送信部110と、受信部120と、設定部130と、制御部140とを有する。図16に示される機能構成は一例に過ぎない。本発明の実施の形態に係る動作を実行できるのであれば、機能区分及び機能部の名称はどのようなものでもよい。送信部110と受信部120とを通信部と呼んでもよい。
図17は、端末20の機能構成の一例を示す図である。図17に示されるように、端末20は、送信部210と、受信部220と、設定部230と、制御部240とを有する。図17に示される機能構成は一例に過ぎない。本発明の実施の形態に係る動作を実行できるのであれば、機能区分及び機能部の名称はどのようなものでもよい。送信部210と受信部220とを通信部と呼んでもよい。
上記実施形態の説明に用いたブロック図(図16及び図17)は、機能単位のブロックを示している。これらの機能ブロック(構成部)は、ハードウェア及びソフトウェアの少なくとも一方の任意の組み合わせによって実現される。また、各機能ブロックの実現方法は特に限定されない。すなわち、各機能ブロックは、物理的又は論理的に結合した1つの装置を用いて実現されてもよいし、物理的又は論理的に分離した2つ以上の装置を直接的又は間接的に(例えば、有線、無線などを用いて)接続し、これら複数の装置を用いて実現されてもよい。機能ブロックは、上記1つの装置又は上記複数の装置にソフトウェアを組み合わせて実現されてもよい。
以上、説明したように、本発明の実施の形態によれば、他の通信装置が自律的に選択したリソースにおいて信号を送信する要求を前記他の通信装置から複数受信する受信部と、条件に基づいて、前記複数の要求にそれぞれ対応する複数の信号の送信に係る制御を実行する制御部と、前記複数の信号の少なくとも一部を前記他の通信装置に送信する送信部とを有する通信装置が提供される。
以上、本発明の実施の形態を説明してきたが、開示される発明はそのような実施形態に限定されず、当業者は様々な変形例、修正例、代替例、置換例等を理解するであろう。発明の理解を促すため具体的な数値例を用いて説明がなされたが、特に断りのない限り、それらの数値は単なる一例に過ぎず適切な如何なる値が使用されてもよい。上記の説明における項目の区分けは本発明に本質的ではなく、2以上の項目に記載された事項が必要に応じて組み合わせて使用されてよいし、ある項目に記載された事項が、別の項目に記載された事項に(矛盾しない限り)適用されてよい。機能ブロック図における機能部又は処理部の境界は必ずしも物理的な部品の境界に対応するとは限らない。複数の機能部の動作が物理的には1つの部品で行われてもよいし、あるいは1つの機能部の動作が物理的には複数の部品により行われてもよい。実施の形態で述べた処理手順については、矛盾の無い限り処理の順序を入れ替えてもよい。処理説明の便宜上、基地局10及び端末20は機能的なブロック図を用いて説明されたが、そのような装置はハードウェアで、ソフトウェアで又はそれらの組み合わせで実現されてもよい。本発明の実施の形態に従って基地局10が有するプロセッサにより動作するソフトウェア及び本発明の実施の形態に従って端末20が有するプロセッサにより動作するソフトウェアはそれぞれ、ランダムアクセスメモリ(RAM)、フラッシュメモリ、読み取り専用メモリ(ROM)、EPROM、EEPROM、レジスタ、ハードディスク(HDD)、リムーバブルディスク、CD-ROM、データベース、サーバその他の適切な如何なる記憶媒体に保存されてもよい。
110 送信部
120 受信部
130 設定部
140 制御部
20 端末
210 送信部
220 受信部
230 設定部
240 制御部
30 コアネットワーク
1001 プロセッサ
1002 記憶装置
1003 補助記憶装置
1004 通信装置
1005 入力装置
1006 出力装置
Claims (6)
- 他の通信装置が自律的に選択したリソースにおいて信号を送信する要求を前記他の通信装置から複数受信する受信部と、
条件に基づいて、前記複数の要求にそれぞれ対応する複数の信号の送信に係る制御を実行する制御部と、
前記複数の信号の少なくとも一部を前記他の通信装置に送信する送信部とを有する通信装置。 - 前記制御部は、前記複数の信号の送信を要求される時間区間の少なくとも一部がオーバラップする場合、前記複数の信号を多重して前記送信部に送信させる請求項1記載の通信装置。
- 前記送信部は、前記複数の信号のうち、より後に要求された信号に対応するリソースにおいて、前記複数の信号を多重して送信する請求項2記載の通信装置。
- 前記制御部は、前記複数の信号のうち少なくとも一つをドロップ又は送信延期して、前記複数の信号の残りの信号を多重して前記送信部に送信させる請求項1記載の通信装置。
- 前記制御部は、前記複数の信号の送信リソースの少なくとも一部がオーバラップするとき、前記複数の信号の優先度が同一である場合、多重して前記送信部に送信させ、前記複数の信号の優先度が異なる場合、優先度の低い信号をドロップして優先度の高い信号を前記送信部に送信させる請求項1記載の通信装置。
- 他の通信装置が自律的に選択したリソースにおいて信号を送信する要求を前記他の通信装置から複数受信する受信手順と、
条件に基づいて、前記複数の要求にそれぞれ対応する複数の信号の送信に係る制御を実行する制御手順と、
前記複数の信号の少なくとも一部を前記他の通信装置に送信する送信手順とを通信装置が実行する通信方法。
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