WO2023013192A1 - 端末、基地局及び通信方法 - Google Patents
端末、基地局及び通信方法 Download PDFInfo
- Publication number
- WO2023013192A1 WO2023013192A1 PCT/JP2022/019560 JP2022019560W WO2023013192A1 WO 2023013192 A1 WO2023013192 A1 WO 2023013192A1 JP 2022019560 W JP2022019560 W JP 2022019560W WO 2023013192 A1 WO2023013192 A1 WO 2023013192A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission
- pusch
- repetition
- terminal
- slot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/189—Transmission or retransmission of more than one copy of a message
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
Definitions
- the present disclosure relates to terminals, base stations, and communication methods.
- 5th Generation mobile communication systems offer large capacity and ultra-high speed (eMBB: enhanced Mobile Broadband), massive Machine Type Communication (mMTC), and ultra-reliable low latency (URLLC: Ultra Reliable and Low Latency Communication), it can flexibly provide wireless communication according to a wide variety of needs.
- eMBB enhanced Mobile Broadband
- mMTC massive Machine Type Communication
- URLLC Ultra Reliable and Low Latency Communication
- the 3rd Generation Partnership Project (3GPP) an international standardization body, is working on the specification of New Radio (NR) as one of the 5G radio interfaces.
- NR New Radio
- 3GPP TS38.104 V15.14.0 “NR Base Station (BS) radio transmission and reception (Release 15),” June 2021. RP-202928, “New WID on NR coverage enhancements,” China Telecom, December 2020.
- 3GPP TS38.211 V16.6.0 “NR Physical channels and modulation (Release 16),” June 2021.
- 3GPP TS38.212 V16.6.0 “NR Multiplexing and channel coding (Release 16),” June 2021.
- 3GPP TS38.213 V16.6.0 “NR Physical layer procedures for control (Release 16),” June 2021.
- 3GPP TS38.214 V16.6.0 “NR Physical layer procedures for data (Release 16),” June 2021.
- 3GPP TS38.331 V16.5.0 “NR Radio Resource Control (RRC) protocol specification (Release 16)”, June 2021.
- Non-limiting embodiments of the present disclosure contribute to providing terminals, base stations, and communication methods capable of improving uplink communication efficiency.
- a terminal includes a transmission circuit that repeatedly transmits a signal, and when part of the repeated transmission is not performed, the repetition is performed based on whether a determination condition is satisfied or not. a control circuit for determining either continuation of transmission or termination of said repeated transmission.
- uplink communication efficiency can be improved.
- Block diagram showing a configuration example of part of a base station Block diagram showing a configuration example of part of a terminal Block diagram showing a configuration example of a base station Block diagram showing a configuration example of a terminal Flowchart showing an operation example according to the first embodiment A diagram showing an operation example according to the first embodiment A diagram showing an operation example according to the second embodiment A diagram showing an example of the relationship between the period related to resource setting for configured grant transmission and PUSCH repetition A diagram showing an operation example according to the third embodiment Diagram of an exemplary architecture of a 3GPP NR system Schematic diagram showing functional separation between NG-RAN and 5GC Sequence diagram of Radio Resource Control (RRC) connection setup/reconfiguration procedure Usage scenarios for high-capacity, high-speed communications (eMBB: enhanced Mobile BroadBand
- FR1 Frequency Range 1
- LTE Long Term Evolution
- 3G 3rd Generation mobile communication systems
- Radio Access Technology Radio Access Technology
- a terminal for example, also called User Equipment (UE)
- UE User Equipment
- a physical layer layer Data is transmitted and received according to resource allocation (for example, Grant) indicated by the downlink control signal (DCI: Downlink Control Information) of 1)
- DCI Downlink Control Information
- Grant-based transmission Or Dynamic grant transmission
- Grant-free transmission or Configured grant transmission in which the terminal transmits PUSCH in a pre-specified resource without grant by DCI
- DCI for example, Non-Patent Document 3 -6.
- two types of methods for example, Type 1 and Type 2 are stipulated depending on the difference in the method of specifying resources.
- Type 1 all transmission parameters, such as transmission resource period, time resource, and frequency resource, are configured in advance by Layer 3 Radio Resource Control (RRC), and after configuration, without grant A terminal may initiate uplink data transmission.
- RRC Layer 3 Radio Resource Control
- designation of some parameters such as time resources and frequency resources can be semi-fixedly changed by Activation DCI transmitted in PDCCH.
- NR uplink transmission supports a method of transmitting the same information multiple times (also called repetition).
- NR Rel. 15 defines a slot-based repetition called “PUSCH repetition Type A”, and NR Rel. 16 allows transmission of multiple PUSCHs in one slot called “PUSCH repetition Type B”. Repetition is stipulated.
- PUSCH repetition Type B can achieve lower delay than PUSCH repetition Type A.
- PUSCH repetition Type A for example, the same time resource allocation is applied over multiple consecutive slots.
- the base station notifies the terminal of time resource allocation in slots and the number of repetition slots.
- the number of repeated slots may be, for example, a value counted based on consecutive slots.
- the base station may, for example, notify the terminal of the time domain resource and the number of repetitions for the first (initial) PUSCH transmission.
- time domain resource allocation for the second and subsequent PUSCH transmissions for example, consecutive symbols and the same number of symbols as in the previous PUSCH transmission may be allocated.
- the number of repetition slots to be notified is a value counted based on consecutive slots, so the number of slots for actually transmitting PUSCH is less than the number of repetition slots to be notified.
- the number of repetition slots to be notified is a value counted based on consecutive slots, so the number of slots for actually transmitting PUSCH is less than the number of repetition slots to be notified.
- Repetition for Configured grant PUSCH transmission is set in Time Division Duplex (TDD), and slot #3 and the number of repetition slots 4 are notified as the timing to start repetition.
- TDD Time Division Duplex
- slot #3 and the number of repetition slots 4 are notified as the timing to start repetition.
- DL downlink slot
- slots #3, #4, #5, #6 no PUSCH is transmitted in that slot (e.g., PUSCH transmission is dropped).
- PUSCH coverage performance may be degraded in PUSCH repetition Type A because PUSCH is not transmitted.
- PUSCH repetition Type A for example, setting the number of repetition slots to a value that is counted based on the uplink slots that can be used for PUSCH transmission is being considered.
- slot # 3 and repetition slot number 4 are notified as the timing to start Repetition, and the uplink slots that can be used for PUSCH transmission are slots # 3, # 4, # 7, # 8, # 9 An example of one case is shown.
- this repetition method will be referred to as "PUSCH repetition Type A with availabe slot counting”.
- the Repetition method for counting the number of slots based on continuous slots as shown in FIG. 1 is called "PUSCH repetition Type A with continuous slot counting”.
- PUSCH repetition Type with available slot counting it is possible to transmit PUSCH for the number of repeated slots that have been notified, so compared to PUSCH repetition Type A with continuous slot counting, improvement in PUSCH coverage performance can be expected.
- the number of repetition slots is counted based on the uplink slots available for PUSCH transmission.
- the determination method of uplink slots that can be used for PUSCH transmission is, for example, slot format notification preset by RRC (eg, semi-static Slot Format Indication (SFI)), and time resources for PUSCH transmission It may rely on information about allocation.
- the terminal can determine whether or not to actually transmit PUSCH in an uplink slot that can be used for PUSCH transmission, based on dynamic notification.
- dynamic indications can include dynamic SFI indications, Uplink Transmission Cancellation Indications (UL CIs), and allocation of high priority uplink transmissions.
- this slot can be counted as the number of repeated slots. Therefore, even with PUSCH repetition Type A with available slot counting, for example, as shown in FIG. It may be the case that no PUSCH is transmitted in a certain slot (in other words, the PUSCH transmission is dropped). As a result, even with PUSCH repetition Type A with available slot counting, the number of slots in which PUSCH is actually transmitted may be less than the notified number of repetition slots.
- Configured grant transmission if the terminal does not have data to send, the terminal does not need to transmit PUSCH using preset resources for Configured grant transmission.
- the base station may detect whether or not a terminal transmits a Configured grant transmission.
- the base station monitors the received power of resources for configured grant transmission preset in the terminal, and if the received power is greater than or equal to the threshold, the terminal It may be determined that transmission has been performed, and decoding of the Configured grant transmission may be performed.
- the base station may monitor resources for Configured grant transmission pre-configured in the terminal for a specified number of slots or number of repetitions.
- correlation detection of a demodulation reference signal is one of base station mounting methods for detecting the presence or absence of transmission in configured grant transmission.
- the base station for example, accumulates the output of DMRS symbols or DMRS correlation detection for slots in which PUSCH can be transmitted, and determines that the terminal has transmitted in Configured grant transmission when the accumulated value is equal to or greater than a threshold.
- the base station determines whether or not to transmit in Configured grant transmission to which Repetition is applied. may not be detected. If the base station cannot detect the presence or absence of transmission in Configured grant transmission to which Repetition is applied, the base station erroneously determines that there is no transmission in Configured grant transmission even though the terminal has transmitted in Configured grant transmission. There is also a possibility that Such configured grant transmissions that are not detected by the base station may unnecessarily occupy uplink resources, unnecessarily increase terminal power consumption, and reduce uplink communication efficiency. .
- some PUSCH may not be transmitted (for example, PUSCH transmission may be dropped), and the number of slots for actually transmitting PUSCH is larger than the number of repetition slots notified. may be less.
- the terminal may abort the Repetition transmission (in other words, end the transmission ( terminate), stop or stop). By doing so, for example, transmission of unnecessary Configured grant transmissions that are not detected by the base station can be suppressed, the utilization efficiency of uplink resources can be improved, or the power consumption of the terminal can be reduced.
- a communication system includes, for example, at least one base station and at least one terminal.
- FIG. 4 is a block diagram showing a configuration example of part of the base station 100 according to one embodiment of the present disclosure
- FIG. 5 shows a configuration example of part of the terminal 200 according to one embodiment of this disclosure. It is a block diagram.
- the receiving section 108 receives repeated transmission (repetition transmission) of the signal. If part of the repeated transmission is not performed, the control unit 101 either continues the repeated transmission or terminates (or discontinues) the repeated transmission based on whether the determination condition is satisfied. judge.
- the transmission section 209 (corresponding to the transmission circuit) performs repeated transmission (repetition transmission) of the signal. If part of the repeated transmission is not performed (for example, if it is dropped), the control unit 205 continues the repeated transmission and terminates the repeated transmission based on whether the determination condition is satisfied. (or abort).
- FIG. 6 is a block diagram showing a configuration example of the base station 100. As shown in FIG. The configuration example of the base station 100 illustrated in FIG. 6 may be common throughout the present disclosure including other embodiments and modifications described later.
- the base station 100 includes, for example, a control unit 101, an upper control signal generation unit 102, a downlink control information generation unit 103, an encoding unit 104, a modulation unit 105, a signal allocation unit 106, and a transmission A portion 107 may be provided. Also, the base station 100 may include a receiving section 108, an extracting section 109, a demodulating section 110, and a decoding section 111, for example.
- Control section 101 determines information on PUSCH transmission to terminal 200 and outputs the determined information to higher control signal generation section 102 .
- the information on PUSCH transmission may include, for example, at least one of configuration information on Configured grant PUSCH transmission (eg, configuredGrantConfig), information on a TDRA (Time Domain Resource Allocation) table, and information on the number of repetitions.
- Information on PUSCH transmission may also include, for example, information on parameters (for example, thresholds N, M, or P max ) relating to determination conditions for continuation or termination of Repetition transmission, which will be described later.
- control unit 101 determines, for example, the coding/modulation scheme for downlink signals for transmitting higher control signals and downlink control information, and radio resource allocation.
- Control section 101 may output the determined information to encoding section 104, modulation section 105, and signal allocation section 106, for example.
- the control section 101 may output, for example, the coding/modulation scheme for higher control signals and radio resource allocation information to the downlink control information generating section 103 .
- control unit 101 determines the coding/modulation scheme and radio resource allocation for the terminal 200 to transmit an uplink data signal, and transmits the determined information to the downlink control information generation unit 103, the extraction unit 109, the demodulation unit 110 and the decoding unit 111 .
- control section 101 may specify PUSCH repetition transmission resources, for example, based on a method described later, and output the specified information to extraction section 109, demodulation section 110, and decoding section 111.
- the upper control signal generation section 102 generates an upper layer control signal (eg, bit string) using control information input from the control section 101, for example.
- the higher control signal generator 102 may output the generated signal to the encoder 104, for example.
- Downlink control information generating section 103 may generate DCI (for example, a bit string) using, for example, control information input from control section 101 and output the generated DCI to encoding section 104 . Note that control information may be transmitted to multiple terminals 200 .
- Coding section 104 encodes a bit string input from upper control signal generation section 102 or DCI input from downlink control information generation section 103 based on control information input from control section 101, for example. , and outputs the encoded bit string to modulation section 105 .
- Modulation section 105 modulates the encoded bit string input from encoding section 104 based on, for example, control information input from control section 101 , and outputs the modulated bit string to signal allocation section 106 .
- the signal allocation section 106 maps the control signal input as a symbol string from the modulation section 105 to the radio resource instructed by the control section 101 . Also, the signal allocation unit 106 inputs, for example, signals mapped to radio resources to the transmission unit 107 .
- the transmission section 107 performs transmission waveform generation such as OFDM (Orthogonal Frequency Division Multiplexing) on the signal output from the signal allocation section 106 . Further, in the case of OFDM transmission using CP (Cyclic Prefix), transmitting section 107 may add CP to the signal after applying IFFT (Inverse Fast Fourier Transform).
- OFDM Orthogonal Frequency Division Multiplexing
- CP Cyclic Prefix
- IFFT Inverse Fast Fourier Transform
- the transmitting unit 107 performs radio (RF) processing such as digital-analog (D/A) conversion and up-conversion on the signal output from the signal allocation unit 106, and transmits the signal to the terminal 200 via the antenna.
- RF radio
- D/A digital-analog
- the transmitting unit 107 performs radio (RF) processing such as digital-analog (D/A) conversion and up-conversion on the signal output from the signal allocation unit 106, and transmits the signal to the terminal 200 via the antenna.
- RF radio
- the receiving unit 108 performs radio (RF) processing such as down-conversion and analog-digital (A/D) conversion on an uplink signal transmitted from the terminal 200 and received via an antenna. Further, for example, in the case of OFDM transmission, receiving section 108 obtains a frequency domain signal by applying FFT to the received signal and outputs it to extraction section 109 .
- RF radio
- A/D analog-digital
- the extraction unit 109 extracts the radio resource part in which the PUSCH is transmitted from the received signal, and outputs the extracted PUSCH signal to the demodulation unit 110 .
- Demodulation section 110 performs PUSCH detection, for example, based on information input from control section 101 , performs PUSCH demodulation when it is determined that there is PUSCH transmission, and outputs the demodulation result to decoding section 111 . .
- Decoding section 111 performs PUSCH error correction decoding using, for example, information input from control section 101 and demodulation results input from demodulation section 110, and decodes a received bit string after decoding (for example, UL data signal ).
- the terminal 200 may include a receiver 201, an extractor 202, a demodulator 203, a decoder 204, and a controller 205, for example.
- Terminal 200 may also include encoding section 206, modulation section 207, signal allocation section 208, and transmission section 209, for example.
- the receiving unit 201 receives, for example, a data signal or a downlink control signal transmitted from the base station 100 via an antenna, and performs radio processing (RF processing) such as down-conversion or A/D conversion on the received radio signal. to generate the baseband signal.
- RF processing radio processing
- the receiving section 201 may perform FFT processing on the received signal to transform the received signal into the frequency domain.
- the extracting unit 202 extracts a radio resource portion containing the downlink control signal from the received signal input from the receiving unit 201, for example, using information about the radio resource of the control signal input from the control unit 205, The extracted signal is output to demodulation section 203 . Also, extraction section 202 extracts a radio resource portion containing the data signal using, for example, information about the radio resource of the data signal input from control section 205 , and outputs the extracted signal to demodulation section 203 .
- Demodulation section 203 demodulates PDCCH or PDSCH, for example, based on information input from control section 205 and outputs the demodulation result to decoding section 204 .
- decoding section 204 performs error correction decoding of PDCCH or PDSCH using, for example, information input from control section 205 and demodulation results input from demodulation section 203, and performs error correction decoding on higher layer control information or downlink information. Get link control information.
- the decoding section 204 may output the obtained higher layer control information and downlink control information to the control section 205, for example.
- the control section 205 identifies (or decides) radio resources for PUSCH transmission, for example, based on radio resource allocation information obtained from higher layer control signals and downlink control information. Control section 205 outputs the determined information to signal allocation section 208 , extraction section 202 and demodulation section 203 , for example.
- control section 205 may specify PUSCH repetition transmission resources, for example, based on the method described later, and output the specified information to encoding section 206, modulation section 207, and signal allocation section 208.
- the encoding section 206 encodes the uplink data signal, for example, based on the information input from the control section 205, and outputs the encoded bit string to the modulation section 207.
- Modulation section 207 modulates the encoded bit sequence input from encoding section 206 to generate a modulation symbol sequence based on information input from control section 205, for example, and assigns the modulation symbol sequence to signals. Output to unit 208 .
- the signal allocation section 208 maps the signal input from the modulation section 207 to the radio resource instructed by the control section 205 .
- the signal allocation unit 208 inputs, for example, the signal mapped to the radio resource to the transmission unit 209 .
- the transmission section 209 performs transmission signal waveform generation such as OFDM on the signal input from the signal allocation section 208 .
- the transmitting unit 209 may add CP to the signal after IFFT, for example.
- a DFT Discrete Cosine Transform
- the transmitting unit 209 performs radio (RF) processing such as D/A conversion and up-conversion on the transmission signal, for example, and transmits the radio signal via an antenna.
- RF radio
- terminal 200 for example, in Repetition transmission of Configured grant PUSCH transmission, if there is a slot in which PUSCH transmission is not performed (for example, a slot in which PUSCH transmission is dropped), slots after the slot It may be determined whether to continue Repetition transmission at , or whether to discontinue Repetition transmission after the slot (for example, whether to stop transmission).
- a threshold value N may be used as a judgment criterion (in other words, a judgment condition) for determining either continuation of repetition transmission or termination (or termination) of repetition transmission.
- the threshold N may be, for example, a threshold relating to the number of transmissions of signals for repetition transmission.
- terminal 200 may decide to continue repetition transmission.
- the terminal 200 decides to discontinue (end transmission) Repetition transmission after slots in which PUSCH is not transmitted. you can
- the threshold N may be set based on the number of slots used by the base station 100 to determine whether or not to transmit in Configured grant transmission (for example, the number of slots required for determination).
- Configured grant transmission for example, the number of slots required for determination.
- terminal 200 when terminal 200 does not transmit PUSCH repetition N times or more, terminal 200 aborts repetition transmission (for example, ends transmission).
- transmission of unnecessary configured grant transmissions that are not detected by the base station 100 can be suppressed.
- the power consumption of terminal 200 can be reduced. Therefore, according to the present embodiment, it is possible to improve the utilization efficiency of uplink resources.
- FIG. 8 is a flowchart showing an operation example of the terminal 200.
- the terminal 200 receives, for example, information on PUSCH repetition (S101).
- the information on PUSCH repetition may include, for example, information on time resource allocation in slots used for repetition transmission and information on the number of repetition slots K.
- the terminal 200 determines uplink slots that can be used for PUSCH transmission, for example, based on information about PUSCH repetition (S102).
- the number of repeated slots K is a value counted based on continuous slots.
- terminal 200 may configure consecutive K slots as uplink slots that can be used for PUSCH transmission.
- the number of repetition slots K is a value counted based on the uplink slots available for PUSCH transmission.
- terminal 200 can be used for PUSCH transmission based on SFI notification pre-configured by RRC and information on time resource allocation in slots for PUSCH transmission.
- An uplink slot may be determined. For example, in a certain slot, if the time resource allocation in the slot for PUSCH transmission collides with the downlink symbol preset by RRC, the terminal 200 determines that the slot is an uplink slot that can be used for PUSCH transmission. should not be included in
- Time resource allocation within slots of PUSCH transmission may be included in RRC (eg, configured GrantConfig (see Non-Patent Document 7)) including settings related to Configured grant transmission and notified to terminal 200, for example. , may be included in the time domain resource allocation (TDRA) included in the Activation DCI and notified to terminal 200 .
- RRC eg, configured GrantConfig (see Non-Patent Document 7)
- TDRA time domain resource allocation
- terminal 200 determines whether or not to actually perform PUSCH transmission in the uplink slot (for example, the n-th PUCCH transmission occasion) that can be used for PUSCH transmission determined in Step 1 (S103). Note that terminal 200 may also count slots for which PUSCH transmission is not to be transmitted (PUSCH transmission is dropped) in Step 2 as the number of repeated slots.
- the time resource allocation within a slot of PUSCH transmission is: If it collides with the downlink symbols set by the dynamic SFI indication (dynamic SFI), if the time resource allocation within the slot of the PUSCH transmission collides with the resource indicated by the uplink transmission cancellation indication (UL CI).
- dynamic SFI dynamic SFI
- terminal 200 decides not to transmit PUSCH in the slot (drops PUSCH transmission). you can
- terminal 200 may decide not to transmit PUSCH (drop PUSCH transmission) in the slot.
- the terminal 200 determines not to transmit PUSCH (drops the PUSCH transmission) in Step 2 (S104: Yes), and when it is determined to abort the Repetition transmission (S106: Yes), the Repetition transmission in slots subsequent to the slot is terminated (repetition transmission is terminated) (S107).
- the terminal 200 determines to transmit PUSCH in Step 2 (S104: No), or if it determines to continue Repetition transmission (S106: No), it continues Repetition transmission in slots subsequent to the current slot. (S108).
- the terminal 200 determines whether the uplink slot that can be used for PUSCH transmission is the K-th slot (S109). If the uplink slot that can be used for PUSCH transmission is the K-th slot (S109: Yes), the terminal 200 transmits PUSCH (S110). On the other hand, if the uplink slot that can be used for PUSCH transmission is not the K-th slot (S109: No), terminal 200 uses another uplink slot that can be used for the next PUSCH transmission (for example, the n+1-th PUSCH transmission occurrence), perform Step 2 and Step 3.
- the threshold N used to determine whether to continue or terminate the Repetition transmission in Step 3 may be a value determined (or defined) in the standard, or a value (parameter) notified from the base station 100 to the terminal 200. It's okay.
- the value of N may be a value that does not depend on the number of repetitions K, for example.
- the required signal-to-noise power ratio (SNR) in DMRS correlation detection for determining the presence or absence of transmission in Configured grant transmission may be smaller than the required SNR in decoding PUSCH transmission. Therefore, the value of the threshold N may be equal to the number of repetitions K or a value smaller than the number of repetitions K.
- the larger the Repetition count the smaller the required SNR in decoding PUSCH transmission. Therefore, for example, the larger the number of repetitions, the larger the value of N is set to reduce the required SNR in DMRS correlation detection for determining the presence or absence of transmission in Configured grant transmission, and match the required SNR in decoding of PUSCH transmission. can be done.
- the characteristics of DMRS correlation detection that determines whether or not there is transmission in Configured grant transmission depends on the number of DMRS symbols. So, for example, the value of N may be given based on the number of DMRS symbols rather than the number of slots. For example, the value of N is, in addition to the Repetition count K, the number of DMRS symbols included in PUSCH actually transmitted in the slot before the slot in which PUSCH is not transmitted (the PUSCH transmission is dropped), and the number of DMRS symbols included in the PUSCH transmitted after the slot. It may be a value that depends on the sum of the number of possible DMRS symbols included in PUSCH.
- the threshold N may be notified from the base station 100 to the terminal 200 by RRC.
- the RRC parameter that notifies the threshold N may be included in DMRS-Config that sets information about DMRS, may be included in push-Config that sets information about PUSCH, or may be included in configured grant transmission settings. (for example, configuredGrantConfig) including RRC (for example, see Non-Patent Document 7).
- threshold N may be notified by MAC-CE (Medium Access Control-Control Element). Also, the threshold N may be notified by Activation DCI. When threshold N is signaled by Activation DCI, threshold N may be included in the TDRA table included in Activation DCI, or may be signaled in a separate bit field.
- MAC-CE Medium Access Control-Control Element
- Activation DCI When threshold N is signaled by Activation DCI, threshold N may be included in the TDRA table included in Activation DCI, or may be signaled in a separate bit field.
- the threshold N may be notified from the base station 100 to the terminal 200 by at least one of RRC, MAC-CE, and Activation DCI (for example, a combination of at least two).
- the threshold N may be a value that is implicitly determined based on other notification information (other parameters) that is different from the information regarding the criteria for using the threshold N without explicit notification. For example, when channel estimation that combines DMRS of multiple slots is applied to PUSCH repetition, slots for maintaining phase continuity of transmission signals for terminal 200 or constant transmission power of transmission signals A time domain window can be set.
- the value of threshold N may be set based on the time domain window. As an example, the value of threshold N may be set to the same value as the time domain window.
- terminal 200 determines slots #3, #4, #7, and #8 as uplink slots that can be used for PUSCH transmission. Also, in FIG. 9, terminal 200 determines in Step 2 not to transmit PUSCH (drop PUSCH transmission) in slot #4.
- the terminal 200 decides to discontinue Repetition transmission (end transmission) after slot #4.
- the base station 100 does not detect the presence or absence of transmission in Configured grant transmission to which Repetition is applied, unnecessary occupation of uplink resources is suppressed by aborting Repetition transmission, and the terminal 200 Since an increase in power consumption can be suppressed, communication efficiency in the uplink can be improved.
- the terminal 200 determines to continue repetition transmission from slot #4 onwards.
- terminal 200 sets a determination condition (for example, repetition transmission Based on whether or not the condition using the threshold value N regarding the number of times) is satisfied, it is determined whether to continue the repetition transmission or to end the repetition transmission.
- a determination condition for example, repetition transmission Based on whether or not the condition using the threshold value N regarding the number of times
- the terminal 200 terminates Repetition transmission, so that uplink resources in Configured grant transmission , or an increase in power consumption of the terminal 200 can be suppressed, and communication efficiency in the uplink can be improved. Also, for example, by ending the repetition transmission, it is possible to avoid the base station 100 erroneously determining that transmission is not performed in the configured grant transmission even though the terminal 200 has transmitted in the configured grant transmission. .
- uplink communication efficiency can be improved.
- base station 100 is assumed to monitor the first M slots of preset Repetition resources for Configured grant transmission as a simple implementation of Configured grant PUSCH detection. For example, base station 100 accumulates the DMRS symbols of the first M slots of repetition resources or the output of DMRS correlation detection, and if the accumulated value is equal to or greater than a threshold value, determines that terminal 200 has transmitted in Configured grant transmission.
- Terminal 200 for example, in Repetition transmission of Configured grant PUSCH transmission, in the first M slots of preset Repetition resources for Configured grant transmission, slots in which PUSCH transmission is not performed (for example, PUSCH transmission is dropped slot) exists, it may be determined whether to abort the Repetition transmission after the slot (for example, whether to stop the transmission).
- ⁇ Step 1> Information related to PUSCH repetition, such as time resource allocation in slots used for repetition transmission and the number of repetition slots K, may be reported to the terminal 200 (eg, S101).
- the terminal 200 determines uplink slots that can be used for PUSCH transmission, for example, based on the notified PUSCH repetition information (S102).
- the number of repeated slots K is a value counted based on continuous slots.
- terminal 200 may configure consecutive K slots as uplink slots that can be used for PUSCH transmission.
- the number of repetition slots K is a value counted based on the uplink slots available for PUSCH transmission.
- terminal 200 can be used for PUSCH transmission based on SFI notification pre-configured by RRC and information on time resource allocation in slots for PUSCH transmission.
- An uplink slot may be determined. For example, in a certain slot, if the time resource allocation in the slot for PUSCH transmission collides with the downlink symbol preset by RRC, the terminal 200 determines that the slot is an uplink slot that can be used for PUSCH transmission. should not be included in
- Time resource allocation within slots of PUSCH transmission may be included in RRC (eg, configured GrantConfig (see Non-Patent Document 7)) including settings related to Configured grant transmission and notified to terminal 200, for example. , may be included in the time domain resource allocation (TDRA) included in the Activation DCI and notified to terminal 200 .
- RRC eg, configured GrantConfig (see Non-Patent Document 7)
- TDRA time domain resource allocation
- Terminal 200 determines whether or not to actually perform PUSCH transmission in the uplink slot (for example, the n-th PUCCH transmission occasion) that can be used for PUSCH transmission determined in Step 1 (S103). Note that terminal 200 may also count slots for which PUSCH transmission is not to be transmitted (PUSCH transmission is dropped) in Step 2 as the number of repeated slots.
- the time resource allocation within a slot of PUSCH transmission is: If it collides with the downlink symbols set by the dynamic SFI indication (dynamic SFI), if the time resource allocation within the slot of the PUSCH transmission collides with the resource indicated by the uplink transmission cancellation indication (UL CI).
- dynamic SFI dynamic SFI
- terminal 200 decides not to transmit PUSCH in the slot (drops PUSCH transmission). you can
- terminal 200 may decide not to transmit PUSCH (drop PUSCH transmission) in the slot.
- the terminal 200 determines not to transmit PUSCH (drops the PUSCH transmission) in Step 2 (S104: Yes), and when it is determined to abort the Repetition transmission (S106: Yes), the Repetition transmission in slots subsequent to the slot is terminated (repetition transmission is terminated) (S107).
- the terminal 200 determines to transmit PUSCH in Step 2 (S104: No), or if it determines to continue Repetition transmission (S106: No), it continues Repetition transmission in slots subsequent to the current slot. (S108).
- the specified value M (the number of leading slots of Repetition) used to determine whether to continue or terminate the Repetition transmission in Step 3 may be a value determined (or specified) in the standard, or may be sent from the base station 100 to the terminal 200. It may be a value (parameter) notified by
- the value of M may be a value that does not depend on the number of repetitions K, for example.
- the required SNR in DMRS correlation detection for determining the presence or absence of transmission in Configured grant transmission may be smaller than the required SNR in decoding PUSCH transmission. Therefore, the value of M may be equal to the number of repetitions K or may be smaller than the number of repetitions K.
- the value of M may be notified from the base station 100 to the terminal 200 by RRC.
- the RRC parameter that notifies the value of M may be included in DMRS-Config that sets information about DMRS, may be included in push-Config that sets information about PUSCH, or may be included in configured grant transmission. It may be included in an RRC (for example, configuredGrantConfig) containing the configuration and notified (for example, see Non-Patent Document 7).
- the value of M may be notified by MAC-CE. Also, the value of M may be notified by Activation DCI. When the value of M is signaled by Activation DCI, the value of M may be included in the TDRA table included in Activation DCI, or may be signaled in a separate bit field.
- the value of M may be notified from base station 100 to terminal 200 by at least one of RRC, MAC-CE, and Activation DCI (for example, a combination of at least two).
- the value of M may be a value that is implicitly determined based on other notification information (other parameters) that is different from the information on the criteria using the prescribed number M without explicit notification. For example, when channel estimation that combines DMRS of multiple slots is applied to PUSCH repetition, slots for maintaining phase continuity of transmission signals for terminal 200 or constant transmission power of transmission signals A time domain window can be set.
- the value of M may be set based on the time domain window. As an example, the value of M may be set to the same value as the time domain window.
- terminal 200 determines slots #3, #4, #7, and #8 as uplink slots that can be used for PUSCH transmission. In FIG. 10, terminal 200 determines in Step 2 not to transmit PUSCH (drop PUSCH transmission) in slot #4.
- terminal 200 is used for PUSCH detection of base station 100. If PUSCH transmission is not performed in the first M slots (for example, if PUSCH transmission is dropped), Repetition transmission is aborted (for example, transmission is terminated), and if PUSCH transmission is performed in the first M slots Continue repetition transmission.
- the terminal 200 terminates Repetition transmission to eliminate the need for uplink resources in Configured grant transmission. occupancy or an increase in power consumption of the terminal 200 can be suppressed, and communication efficiency in the uplink can be improved. Also, for example, by ending the repetition transmission, it is possible to avoid the base station 100 erroneously determining that transmission is not performed in the configured grant transmission even though the terminal 200 has transmitted in the configured grant transmission. .
- uplink communication efficiency can be improved.
- PUSCH repetition Type A with continuous slot counting in Rel.15 and Rel.16 does not assume that the repetition (e.g., K slots) of a configured grant transmission with a repetition count of K is greater than the length of time given by the period P. .
- the UE may select the last available uplink slot for PUSCH transmission given by K consecutive slots, or the last available uplink slot for PUSCH transmission within period P. Do not send PUSCH after link slot.
- the number of repetition slots K is a value counted based on the uplink slots available for PUSCH transmission.
- the uplink slots available for PUSCH transmission may be deferred to later slots instead of consecutive slots.
- the time length given by Repetition of Configured grant transmission with repetition number K (for example, uplink slots available for K PUSCH transmissions) may be greater than the time length given by period P.
- an operation example of Repetition transmission considering the period P will be described.
- an operation example of repetition transmission when the time length given by repetition of configured grant transmission with repetition count K is longer than the time length given by period P will be described.
- the terminal 200 for example, in addition to the determination criteria using the threshold N in Embodiment 1, or the determination criteria using the leading slot number M of Repetition in Embodiment 2, to the period P
- the terminal 200 may determine either continuation or termination (end of transmission) of Repetition transmission in consideration of the corresponding interval.
- terminal 200 An operation example of terminal 200 according to the present embodiment will be described below.
- terminal 200 discontinues Repetition transmission after the last uplink slot that can be used for PUSCH transmission within period P (stops transmission), for example.
- the time length given by Repetition for example, uplink slots that can be used for K PUSCH transmissions
- the time length given by Repetition is larger than the time length given by period P do not allow to become
- the terminal 200 may use, for example, the threshold N in Embodiment 1 as a criterion for determining whether to continue or abort (end transmission) of Repetition transmission.
- the terminal 200 for example, in calculating the number of slots (for example, uplink slots that can be used for PUSCH transmission) in which PUSCH can be transmitted after a slot in which PUSCH is not transmitted, PUSCH within the interval of period P , and does not include slots in which PUSCH outside the interval of period P can be transmitted.
- the number of slots for example, uplink slots that can be used for PUSCH transmission
- PUSCH within the interval of period P for example, PUSCH within the interval of period P , and does not include slots in which PUSCH outside the interval of period P can be transmitted.
- slots #3, #4, #7 and #8 used for Repetition transmission slots #3, #4 and #7 in the interval corresponding to the period P are The slot #8 outside the section corresponding to the period P need not be subjected to the determination using the threshold value N.
- Step 2 the terminal 200 does not transmit PUSCH (drops PUSCH transmission) in the interval corresponding to the period P, and the number of times the PUSCH is actually transmitted in the slot before the slot corresponding to the period P. If the sum of the number of slots in which PUSCH can be transmitted after the slot in which PUSCH is not transmitted (for example, the number of uplink slots that can be used for PUSCH transmission) is equal to or greater than threshold N, repetition transmission is continued.
- Step 2 the terminal 200 determines the number of times the PUSCH is actually transmitted in the slot before the slot in which the PUSCH is not transmitted within the interval corresponding to the cycle P, and the number of times the PUSCH is transmitted in the interval corresponding to the cycle P. If the sum of the number of slots in which PUSCH can be transmitted after the slot in which PUSCH is not transmitted is less than the threshold value N, the repetition transmission after the slot in which PUSCH is not transmitted is terminated (transmission is stopped).
- the length of time given by Repetition of Configured grant transmission of Repetition times K is greater than the length of time given by period P allow.
- terminal 200 may continue PUSCH repetition after the last uplink slot available for PUSCH transmission within cycle P, for example.
- the uplink slots available for PUSCH transmission may be postponed to later slots beyond the period P interval.
- Terminal 200 may, for example, discontinue Repetition transmission after the last uplink slot that can be used for PUSCH transmission within P max (may stop transmission).
- the maximum length of time P max for deferring uplink slots that can be used for PUSCH transmission may be set as follows.
- P max may be set to a length of time that includes a period P next to the period given by the period P of the Configured grant transmission. That is, P max may be set to the length of time given by 2 ⁇ P.
- Terminal 200 discontinues (stops transmission), for example, Repetition transmission after the last uplink slot that can be used for PUSCH transmission within P max . Further, for example, in the judgment criteria using the threshold N, the number of slots (for example, uplink slots that can be used for PUSCH transmission) in which PUSCH can be transmitted after the slot in which PUSCH is not transmitted is calculated. A slot in which PUSCH can be transmitted may be included, and a slot in which PUSCH outside the Pmax interval may be transmitted may not be included.
- P max may be set as a parameter independent of the period P of Configured grant transmission.
- Terminal 200 discontinues (stops transmission), for example, Repetition transmission after the last uplink slot that can be used for PUSCH transmission within P max . Further, for example, in the judgment criteria using the threshold N, the number of slots (for example, uplink slots that can be used for PUSCH transmission) in which PUSCH can be transmitted after the slot in which PUSCH is not transmitted is calculated. A slot in which PUSCH can be transmitted may be included, and a slot in which PUSCH outside the Pmax interval may be transmitted may not be included.
- P max may be a value determined by a standard, or may be a parameter notified from base station 100 to terminal 200 .
- the value of P max may be a value that does not depend on the number of repetitions K, for example.
- P max 10 ms, or may be set to 10 slots.
- the value of P max may be a different value depending on the number of repetitions K, for example.
- P max when P max is a parameter notified from base station 100 to terminal 200, P max may be notified from base station 100 to terminal 200 by RRC.
- the RRC parameter that notifies P max may be included in, for example, DMRS-Config that configures information about DMRS, may be included in push-Config that configures information about PUSCH, or may be included in configured grant transmission. (for example, configuredGrantConfig) including RRC (for example, see Non-Patent Document 7).
- P max may be signaled by MAC-CE. Also, P max may be notified by Activation DCI. When P max is notified by Activation DCI, P max may be included in the TDRA table included in Activation DCI, or may be notified in an individual bit field.
- P max may be set to the length of time obtained by multiplying the interval given by the period P of the Configured grant transmission by a factor.
- Terminal 200 discontinues (stops transmission), for example, Repetition transmission after the last uplink slot that can be used for PUSCH transmission within P max . Further, for example, in the judgment criteria using the threshold N, the number of slots (for example, uplink slots that can be used for PUSCH transmission) in which PUSCH can be transmitted after the slot in which PUSCH is not transmitted is calculated. A slot in which PUSCH can be transmitted may be included, and a slot in which PUSCH outside the Pmax interval may be transmitted may not be included.
- the scaling factor ⁇ may be a value determined by the standard, or may be a parameter notified from the base station 100 to the terminal 200 .
- ⁇ may be different depending on the number of repetitions K, for example.
- ⁇ may be notified from base station 100 to terminal 200 by RRC.
- the RRC parameter that notifies ⁇ may, for example, be included in DMRS-Config that sets information about DMRS, may be included in push-Config that sets information about PUSCH, or configures grant transmission settings. It may be included in the included RRC (for example, configuredGrantConfig) and notified (for example, see Non-Patent Document 7).
- ⁇ may be notified by MAC-CE. Also, ⁇ may be notified by Activation DCI. When ⁇ is notified by Activation DCI, ⁇ may be included in the TDRA table included in Activation DCI, or may be notified in an individual bit field.
- the terminal 200 when the terminal 200 continues Repetition transmission (eg, S108), whether the uplink slot that can be used for PUSCH transmission is the K-th slot, or , Pmax that can be used for the last PUSCH transmission (S109). If the uplink slot that can be used for PUSCH transmission is the K-th slot, or if it is the last uplink slot that can be used for PUSCH transmission within Pmax (S109: Yes), terminal 200 transmits PUSCH. (S110).
- the terminal 200 performs the next PUSCH transmission. Perform Step 2 and Step 3 for uplink slots that can be used for
- terminal 200 may discontinue transmission in slots #4 and #5 of repetition transmission.
- terminal 200 can improve the efficiency of repetition transmission in consideration of period P.
- the threshold value N in the first embodiment is used as a criterion for determining whether to continue or abort the repetition transmission (end of transmission) has been described, but the present invention is not limited to this.
- the specified value M in Embodiment 2 may be used.
- the repetition transmission is aborted. (end of transmission) may be determined. Further, terminal 200 continues repetition transmission when, for example, PUSCH transmission is performed in the leading M slots of the repetition resource in the interval corresponding to period P (or P max ) (repetition transmission is performed). may be determined.
- the maximum length of time to postpone the uplink slot that can be used for PUSCH transmission for Dynamic grant transmission (for example, represented as "P max, DG ) and the uplink slot that can be used for PUSCH transmission for Configured grant transmission
- the maximum length of time to postpone (for example, expressed as “P max, CG ”) may be set independently. This makes it possible to flexibly set the maximum length of time for postponing uplink slots that can be used for PUSCH transmission for each PUSCH transmission method of configured grant transmission and dynamic grant transmission.
- terminal 200 applies P max, CG in configured grant transmission.
- P max, CG the maximum length of time P max, DG for deferring an uplink slot that can be used for PUSCH transmission for dynamic grant transmission may be applied.
- terminal 200 may apply default values. The default value may be, for example, the period P of the configured grant transmission, or a value that is an integral multiple of the period P of the configured grant transmission.
- each embodiment, modification, or Option in each embodiment described above may be set in the terminal 200 by RRC. Also, whether or not the terminal 200 applies each embodiment, modification, or Option in each embodiment described above may be set in the terminal 200 by Activation DCI.
- each embodiment may be applied not only to PUSCH repetition Type A but also to PUSCH repetition Type B. Further, whether or not to apply each embodiment, modification, or Option in each embodiment described above may be individually set for the PUSCH repetition method. For example, as the PUSCH repetition method, for PUSCH repetition Type A with continuous slot counting, PUSCH repetition Type A with available slot counting, and PUSCH repetition Type B individually, each embodiment, modification or Option in each embodiment described above Whether or not to apply may be set.
- N and M may be applied by replacing the "number of slots" with the "number of repetitions”. good.
- modification, or Option in each embodiment may be individually set for the Configured grant type.
- Configured grant type whether or not to apply the above-described embodiment, modification, or Option in each embodiment may be set individually for Type A and Type B.
- a plurality of Configured grant configurations can be set, whether or not to apply the above-described Embodiments, Modifications, or Options in each Embodiment may be set individually for each Configured grant configuration.
- the applied embodiment, modification, and Option in each embodiment may be changed.
- the applied embodiment, modification, and Option in each embodiment may be changed individually for each Configured grant type.
- a non-limiting embodiment of the present disclosure is applied to PUSCH repetition, but a non-limiting embodiment of the present disclosure Application of the example is not limited to PUSCH repetition.
- a non-limiting embodiment of the present disclosure may be applied to TB processing over multi-slot PUSCH (TBoMS), which is being considered for introduction in Rel.17, and multi-slot channel estimation between multiple PUSCHs may be applied where applicable.
- TBoMS multi-slot PUSCH
- a non-limiting example of the present disclosure is a Scheduling Request (SR), or an uplink control channel that transmits periodic / semi-persistent CSI (for example, PUCCH: Physical Uplink Control CHannel). good.
- SR Scheduling Request
- PUCCH Physical Uplink Control CHannel
- Rel.16 it is possible to set priorities for uplink transmission such as PUSCH or ACK/NACK.
- the number of priority levels is 2, uplink transmission with priority index 0 is low priority, and uplink transmission with priority index 1 is high priority.
- the applied embodiment, modification, and Option in each embodiment may be varied.
- the comparison between the value of the threshold N and the number of slots for transmitting PUSCH has been described.
- the number of slots compared with the value of the threshold N may be replaced with the number of slots in which PUSCH is not transmitted (PUSCH is dropped).
- the PUSCH transmission unit is not limited to slots.
- the PUSCH transmission unit may be the subslot unit introduced in NR Rel.16.
- the number of symbols included in a subslot is less than the number of slots. For example, if the number of symbols included in a slot is 14 (or 12), the number of symbols included in a subslot may be 2 or 7 (or 6).
- application of the embodiment or modification may be controlled (for example, enabled or disabled) depending on whether the unit of PUSCH transmission is a slot or a subslot. Also, different embodiments or modifications may be applied depending on whether the unit of PUSCH transmission is a slot or a subslot.
- parameters such as the number of repetitions, thresholds N and M, period P, and number of slots applied in the description of the above embodiment are examples, and other values may be used.
- (supplement) Information indicating whether or not the terminal 200 supports the functions, operations, or processes shown in each of the above-described embodiments, modifications, and supplements is, for example, capability information or capability parameters of the terminal 200. , may be transmitted (or notified) from terminal 200 to base station 100 .
- the capability information includes an information element (IE) that individually indicates whether or not the terminal 200 supports at least one of the functions, operations, or processes shown in each of the above-described embodiments, modifications, and supplements. may contain.
- the capability information includes an information element indicating whether or not the terminal 200 supports a combination of two or more of the functions, operations, or processes shown in each of the above-described embodiments, modifications, and supplements. may contain.
- base station 100 may determine (or determine or assume) functions, operations, or processes supported (or not supported) by terminal 200 as the source of capability information.
- the base station 100 may perform operation, processing, or control according to the determination result based on the capability information.
- base station 100 may control at least one allocation (in other words, scheduling) of uplink resources such as PUSCH based on the capability information received from terminal 200 .
- the terminal 200 does not support some of the functions, operations, or processes shown in each of the above-described embodiments, modifications, and supplements, and the terminal 200 does not support such functions, operations, or Alternatively, it may be read that the processing is restricted. For example, base station 100 may be notified of information or requests regarding such restrictions.
- Information about the capabilities or limitations of terminal 200 may be defined, for example, in a standard, or may be implicitly associated with information known in base station 100 or information transmitted to base station 100 . may be notified.
- Repetition may be called slot aggregation, slot bundling, TTI aggregation, or TTI bundling, for example.
- the present disclosure may be applied to communication between terminals such as sidelink communication, for example.
- the downlink control channel, downlink data channel, uplink control channel, and uplink data channel are not limited to PDCCH, PDSCH, PUCCH, and PUSCH, respectively, and control channels with other names. It's okay.
- RRC signaling is assumed for higher layer signaling, but it may be replaced with Medium Access Control (MAC) signaling and DCI notification, which is physical layer signaling.
- MAC Medium Access Control
- the downlink control signal (information) related to the present disclosure may be a signal (information) transmitted by PDCCH of the physical layer, a signal (information) transmitted by MAC CE (Control Element) or RRC of the higher layer ) can be used. Also, the downlink control signal may be a signal (information) defined in advance.
- the uplink control signal (information) related to the present disclosure may be a signal (information) transmitted by PUCCH of the physical layer, or may be a signal (information) transmitted by MAC CE or RRC of the higher layer. Also, the uplink control signal may be a signal (information) defined in advance. Also, the uplink control signal may be replaced with UCI (uplink control information), 1st stage SCI (sidelink control information), and 2nd stage SCI.
- the base station includes TRP (Transmission Reception Point), cluster head, access point, RRH (Remote Radio Head), eNodeB (eNB), gNodeB (gNB), BS (Base Station), BTS (Base Transceiver Station) , parent device, gateway, or the like.
- TRP Transmission Reception Point
- eNB eNodeB
- gNodeB gNB
- BTS Base Transceiver Station
- parent device gateway, or the like.
- the base station may be replaced by a terminal.
- a base station may be a relay device that relays communication between an upper node and a terminal.
- the base station may be a roadside device.
- the present disclosure may be applied to any of uplink, downlink, and sidelink.
- the present disclosure to uplink PUSCH, PUCCH, PRACH, downlink PDSCH, PDCCH, PBCH, sidelink PSSCH (Physical Sidelink Shared Channel), PSCCH (Physical Sidelink Control Channel), PSBCH (Physical Sidelink Broadcast Channel) may apply.
- PDCCH, PDSCH, PUSCH, and PUCCH are examples of downlink control channels, downlink data channels, uplink data channels, and uplink control channels.
- PSCCH and PSSCH are examples of sidelink control channels and sidelink data channels.
- PBCH and PSBCH are broadcast channels, and PRACH is an example of a random access channel.
- the present disclosure may apply to both data channels and control channels.
- the channels of the present disclosure may be replaced with data channels PDSCH, PUSCH, and PSSCH, and control channels PDCCH, PUCCH, PBCH, PSCCH, and PSBCH.
- the reference signal is a signal known to both the base station and the terminal, and is also called RS (Reference Signal) or pilot signal.
- the reference signal can be DMRS, CSI-RS (Channel State Information - Reference Signal), TRS (Tracking Reference Signal), PTRS (Phase Tracking Reference Signal), CRS (Cell-specific Reference Signal), or SRS (Sounding Reference Signal). or
- the unit of time resources is not limited to one or a combination of slots and symbols, for example, frames, superframes, subframes, slots, time slots, subslots, minislots or symbols, OFDM Division Multiplexing) symbols, SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbols, or other time resource units.
- the number of symbols included in one slot is not limited to the number of symbols exemplified in the above embodiment, and may be another number of symbols.
- the present disclosure may be applied to both licensed bands and unlicensed bands.
- the present disclosure may be applied to any of communication between base stations and terminals (Uu link communication), communication between terminals (Sidelink communication), and V2X (Vehicle to Everything) communication.
- the channels of the present disclosure may be replaced with PSCCH, PSSCH, PSFCH (Physical Sidelink Feedback Channel), PSBCH, PDCCH, PUCCH, PDSCH, PUSCH, and PBCH.
- the present disclosure may be applied to both terrestrial networks and non-terrestrial networks (NTN: Non-Terrestrial Network) using satellites and advanced pseudolites (HAPS).
- NTN Non-Terrestrial Network
- HAPS advanced pseudolites
- the present disclosure may also be applied to terrestrial networks with large transmission delays compared to symbol lengths and slot lengths, such as networks with large cell sizes and ultra-wideband transmission networks.
- An antenna port refers to a logical antenna (antenna group) composed of one or more physical antennas.
- the antenna port does not always refer to one physical antenna, but may refer to an array antenna or the like composed of a plurality of antennas.
- how many physical antennas constitute an antenna port is not specified, but is specified as the minimum unit in which a terminal can transmit a reference signal.
- an antenna port may be defined as the minimum unit for multiplying weights of precoding vectors.
- 5G fifth generation cellular technology
- NR new radio access technologies
- the system architecture as a whole is assumed to be NG-RAN (Next Generation-Radio Access Network) with gNB.
- the gNB provides UE-side termination of NG radio access user plane (SDAP/PDCP/RLC/MAC/PHY) and control plane (RRC) protocols.
- SDAP/PDCP/RLC/MAC/PHY NG radio access user plane
- RRC control plane
- the gNB also connects to the Next Generation Core (NGC) via the Next Generation (NG) interface, and more specifically, the Access and Mobility Management Function (AMF) via the NG-C interface (e.g., a specific core entity that performs AMF) , and is also connected to a UPF (User Plane Function) (eg, a specific core entity that performs UPF) by an NG-U interface.
- NNC Next Generation Core
- AMF Access and Mobility Management Function
- UPF User Plane Function
- UPF User Plane Function
- the NR user plane protocol stack (e.g., 3GPP TS 38.300, see section 4.4.1) consists of a network-side terminated PDCP (Packet Data Convergence Protocol (see TS 38.300, section 6.4)) sublayer at the gNB, It includes the RLC (Radio Link Control (see TS 38.300 clause 6.3)) sublayer and the MAC (Medium Access Control (see TS 38.300 clause 6.2)) sublayer. Also, a new Access Stratum (AS) sublayer (Service Data Adaptation Protocol (SDAP)) has been introduced on top of PDCP (see, for example, 3GPP TS 38.300, Section 6.5).
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control
- MAC Medium Access Control
- SDAP Service Data Adaptation Protocol
- a control plane protocol stack is defined for NR (see, eg, TS 38.300, section 4.4.2).
- An overview of layer 2 functions is given in clause 6 of TS 38.300.
- the functions of the PDCP sublayer, RLC sublayer and MAC sublayer are listed in TS 38.300 clauses 6.4, 6.3 and 6.2 respectively.
- the functions of the RRC layer are listed in clause 7 of TS 38.300.
- the Medium-Access-Control layer handles logical channel multiplexing and scheduling and scheduling-related functions, including handling various neurology.
- the physical layer is responsible for encoding, PHY HARQ processing, modulation, multi-antenna processing, and mapping of signals to appropriate physical time-frequency resources.
- the physical layer also handles the mapping of transport channels to physical channels.
- the physical layer provides services to the MAC layer in the form of transport channels.
- a physical channel corresponds to a set of time-frequency resources used for transmission of a particular transport channel, and each transport channel is mapped to a corresponding physical channel.
- physical channels include PRACH (Physical Random Access Channel), PUSCH (Physical Uplink Shared Channel), and PUCCH (Physical Uplink Control Channel) as uplink physical channels, and PDSCH (Physical Downlink Shared Channel) as downlink physical channels.
- PDCCH Physical Downlink Control Channel
- PBCH Physical Broadcast Channel
- NR use cases/deployment scenarios include enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), massive machine type communication (mMTC) with diverse requirements in terms of data rate, latency and coverage can be included.
- eMBB is expected to support peak data rates (20 Gbps in the downlink and 10 Gbps in the uplink) and user-experienced data rates on the order of three times the data rates provided by IMT-Advanced.
- URLLC more stringent requirements are imposed for ultra-low latency (0.5 ms each for UL and DL for user plane latency) and high reliability (1-10-5 within 1 ms).
- mMTC preferably has high connection density (1,000,000 devices/km 2 in urban environments), wide coverage in hostile environments, and extremely long battery life (15 years) for low cost devices. can be requested.
- the OFDM numerology (e.g., subcarrier spacing, OFDM symbol length, cyclic prefix (CP) length, number of symbols per scheduling interval) suitable for one use case may be used for other use cases. May not be valid.
- low-latency services preferably require shorter symbol lengths (and thus larger subcarrier spacings) and/or fewer symbols per scheduling interval (also called TTI) than mMTC services.
- TTI time-to-live
- Subcarrier spacing may optionally be optimized to maintain similar CP overhead.
- the value of subcarrier spacing supported by NR may be one or more.
- resource element may be used to mean the smallest resource unit consisting of one subcarrier for the length of one OFDM/SC-FDMA symbol.
- resource grids of subcarriers and OFDM symbols are defined for uplink and downlink, respectively.
- Each element of the resource grid is called a resource element and is identified based on a frequency index in the frequency domain and a symbol position in the time domain (see 3GPP TS 38.211 v15.6.0).
- FIG. 14 shows functional separation between NG-RAN and 5GC.
- Logical nodes in NG-RAN are gNBs or ng-eNBs.
- 5GC has logical nodes AMF, UPF and SMF.
- gNBs and ng-eNBs host the following main functions: - Radio Bearer Control, Radio Admission Control, Connection Mobility Control, dynamic allocation of resources to UEs in both uplink and downlink (scheduling), etc. Functions of Radio Resource Management; - IP header compression, encryption and integrity protection of data; - AMF selection on UE attach when routing to an AMF cannot be determined from information provided by the UE; - routing of user plane data towards UPF; - routing of control plane information towards AMF; - setting up and tearing down connections; - scheduling and sending paging messages; - scheduling and transmission of system broadcast information (originating from AMF or Operation, Admission, Maintenance (OAM)); - configuration of measurements and measurement reports for mobility and scheduling; - transport level packet marking in the uplink; - session management; - support for network slicing; - QoS flow management and mapping to data radio bearers; - Support for UEs in RRC_INACTIVE state; - the ability to deliver NAS messages; - sharing
- the Access and Mobility Management Function hosts the following main functions: - Ability to terminate Non-Access Stratum (NAS) signaling; - security of NAS signaling; - Access Stratum (AS) security controls; - Core Network (CN) inter-node signaling for mobility across 3GPP access networks; - Reachability to UEs in idle mode (including control and execution of paging retransmissions); - management of the registration area; - support for intra-system and inter-system mobility; - access authentication; - access authorization, including checking roaming rights; - mobility management control (subscription and policy); - support for network slicing; - Selection of the Session Management Function (SMF).
- NAS Non-Access Stratum
- AS Access Stratum
- CN Core Network
- the User Plane Function hosts the following main functions: - Anchor points for intra-RAT mobility/inter-RAT mobility (if applicable); - External PDU (Protocol Data Unit) session points for interconnection with data networks; - packet routing and forwarding; – Policy rule enforcement for packet inspection and user plane parts; - reporting of traffic usage; - an uplink classifier to support routing of traffic flows to the data network; - Branching Points to support multi-homed PDU sessions; - QoS processing for the user plane (e.g. packet filtering, gating, UL/DL rate enforcement; - verification of uplink traffic (mapping of SDF to QoS flows); - Downlink packet buffering and downlink data notification trigger function.
- Anchor points for intra-RAT mobility/inter-RAT mobility if applicable
- External PDU Protocol Data Unit
- – Policy rule enforcement for packet inspection and user plane parts for interconnection with data networks
- - reporting of traffic usage - an uplink classifier to support routing of traffic flows to the data network
- Session Management Function hosts the following main functions: - session management; - allocation and management of IP addresses for UEs; - UPF selection and control; - the ability to configure traffic steering in the User Plane Function (UPF) to route traffic to the proper destination; - policy enforcement and QoS in the control part; - Notification of downlink data.
- UPF User Plane Function
- Figure 15 shows some interactions between UE, gNB and AMF (5GC entity) when UE transitions from RRC_IDLE to RRC_CONNECTED for NAS part (see TS 38.300 v15.6.0).
- RRC is a higher layer signaling (protocol) used for UE and gNB configuration.
- the AMF prepares the UE context data (which includes, for example, the PDU session context, security keys, UE Radio Capabilities, UE Security Capabilities, etc.) and the initial context Send to gNB with INITIAL CONTEXT SETUP REQUEST.
- the gNB then activates AS security together with the UE. This is done by the gNB sending a SecurityModeCommand message to the UE and the UE responding to the gNB with a SecurityModeComplete message.
- the gNB sends an RRCReconfiguration message to the UE, and the gNB receives the RRCReconfigurationComplete from the UE to reconfigure for setting up Signaling Radio Bearer 2 (SRB2) and Data Radio Bearer (DRB) .
- SRB2 Signaling Radio Bearer 2
- DRB Data Radio Bearer
- the step for RRCReconfiguration is omitted as SRB2 and DRB are not set up.
- the gNB notifies the AMF that the setup procedure is complete with an INITIAL CONTEXT SETUP RESPONSE.
- the present disclosure provides control circuitry for operationally establishing a Next Generation (NG) connection with a gNodeB and an operationally NG connection so that signaling radio bearers between the gNodeB and User Equipment (UE) are set up.
- a 5th Generation Core (5GC) entity eg, AMF, SMF, etc.
- AMF Next Generation
- SMF User Equipment
- the gNodeB sends Radio Resource Control (RRC) signaling including a Resource Allocation Configuration Information Element (IE) to the UE via the signaling radio bearer.
- RRC Radio Resource Control
- IE Resource Allocation Configuration Information Element
- the UE then performs uplink transmission or downlink reception based on the resource allocation configuration.
- Figure 16 shows some of the use cases for 5G NR.
- the 3rd generation partnership project new radio (3GPP NR) considers three use cases envisioned by IMT-2020 to support a wide variety of services and applications.
- the first stage of specifications for high-capacity, high-speed communications (eMBB: enhanced mobile-broadband) has been completed.
- Current and future work includes expanding eMBB support, as well as ultra-reliable and low-latency communications (URLLC) and Massively Connected Machine Type Communications (mMTC). Standardization for massive machine-type communications is included
- Figure 16 shows some examples of envisioned usage scenarios for IMT beyond 2020 (see eg ITU-RM.2083 Figure 2).
- URLLC use cases have strict performance requirements such as throughput, latency (delay), and availability.
- URLLLC use cases are envisioned as one of the elemental technologies to realize these future applications such as wireless control of industrial production processes or manufacturing processes, telemedicine surgery, automation of power transmission and distribution in smart grids, and traffic safety. ing.
- URLLLC ultra-reliability is supported by identifying technologies that meet the requirements set by TR 38.913.
- an important requirement includes a target user plane latency of 0.5 ms for UL (uplink) and 0.5 ms for DL (downlink).
- the general URLLC requirement for one-time packet transmission is a block error rate (BLER) of 1E-5 for a packet size of 32 bytes with a user plane latency of 1 ms.
- BLER block error rate
- NRURLC the technical enhancements targeted by NRURLC aim to improve latency and improve reliability.
- Technical enhancements for latency improvement include configurable numerology, non-slot-based scheduling with flexible mapping, grant-free (configured grant) uplink, slot-level repetition in data channels, and downlink pre-emption.
- Preemption means that a transmission with already allocated resources is stopped and the already allocated resources are used for other transmissions with lower latency/higher priority requirements requested later. Transmissions that have already been authorized are therefore superseded by later transmissions. Preemption is applicable regardless of the concrete service type. For example, a transmission of service type A (URLLC) may be replaced by a transmission of service type B (eg eMBB).
- Technology enhancements for increased reliability include a dedicated CQI/MCS table for a target BLER of 1E-5.
- mMTC massive machine type communication
- NR URLLC NR URLLC
- the stringent requirements are: high reliability (reliability up to 10-6 level), high availability, packet size up to 256 bytes, time synchronization up to several microseconds (depending on the use case, the value 1 ⁇ s or a few ⁇ s depending on the frequency range and latency as low as 0.5 ms to 1 ms (eg, 0.5 ms latency in the targeted user plane).
- NRURLC NR Ultra User Downlink Control Channel
- enhancements for compact DCI PDCCH repetition, and increased PDCCH monitoring.
- enhancement of UCI Uplink Control Information
- enhancement of enhanced HARQ Hybrid Automatic Repeat Request
- minislot refers to a Transmission Time Interval (TTI) containing fewer symbols than a slot (a slot comprises 14 symbols).
- TTI Transmission Time Interval
- the 5G QoS (Quality of Service) model is based on QoS flows, and includes QoS flows that require a guaranteed flow bit rate (GBR: Guaranteed Bit Rate QoS flows), and guaranteed flow bit rates. support any QoS flows that do not exist (non-GBR QoS flows). Therefore, at the NAS level, a QoS flow is the finest granularity of QoS partitioning in a PDU session.
- a QoS flow is identified within a PDU session by a QoS Flow ID (QFI) carried in an encapsulation header over the NG-U interface.
- QFI QoS Flow ID
- 5GC For each UE, 5GC establishes one or more PDU sessions. For each UE, in line with the PDU session, NG-RAN establishes at least one Data Radio Bearers (DRB), eg as shown above with reference to FIG. Also, additional DRBs for QoS flows for that PDU session can be configured later (up to NG-RAN when to configure). NG-RAN maps packets belonging to different PDU sessions to different DRBs. NAS level packet filters in UE and 5GC associate UL and DL packets with QoS flows, while AS level mapping rules in UE and NG-RAN associate UL and DL QoS flows with DRB.
- DRB Data Radio Bearers
- FIG. 17 shows the non-roaming reference architecture of 5G NR (see TS 23.501 v16.1.0, section 4.23).
- An Application Function eg, an external application server hosting 5G services, illustrated in FIG. 16
- AF Application Function
- NEF Network Exposure Function
- PCF Policy Control Function
- Application Functions that are not authorized by the operator to directly access the Network Function communicate with the associated Network Function using the open framework to the outside world via the NEF.
- Figure 17 shows further functional units of the 5G architecture: Network Slice Selection Function (NSSF), Network Repository Function (NRF), Unified Data Management (UDM), Authentication Server Function (AUSF), Access and Mobility Management Function (AMF) , Session Management Function (SMF), and Data Network (DN, eg, service by operator, Internet access, or service by third party). All or part of the core network functions and application services may be deployed and operated in a cloud computing environment.
- NSF Network Slice Selection Function
- NRF Network Repository Function
- UDM Unified Data Management
- AUSF Authentication Server Function
- AMF Access and Mobility Management Function
- SMSF Session Management Function
- DN Data Network
- QoS requirements for at least one of URLLC, eMMB and mMTC services are set during operation to establish a PDU session including radio bearers between a gNodeB and a UE according to the QoS requirements.
- the functions of the 5GC e.g., NEF, AMF, SMF, PCF, UPF, etc.
- a control circuit that, in operation, serves using the established PDU session;
- An application server eg AF of 5G architecture
- ... unit used in this disclosure refers to a “... circuit,” “... device,” “... unit,” or “... module.” The notation may be replaced with each other.
- Each functional block used in the description of the above embodiments is partially or wholly realized as an LSI, which is an integrated circuit, and each process described in the above embodiments is partially or wholly implemented as It may be controlled by one LSI or a combination of LSIs.
- An LSI may be composed of individual chips, or may be composed of one chip so as to include some or all of the functional blocks.
- the LSI may have data inputs and outputs.
- LSIs are also called ICs, system LSIs, super LSIs, and ultra LSIs depending on the degree of integration.
- the method of circuit integration is not limited to LSI, and may be realized with a dedicated circuit, a general-purpose processor, or a dedicated processor. Further, an FPGA (Field Programmable Gate Array) that can be programmed after the LSI is manufactured, or a reconfigurable processor that can reconfigure the connections and settings of the circuit cells inside the LSI may be used.
- FPGA Field Programmable Gate Array
- reconfigurable processor that can reconfigure the connections and settings of the circuit cells inside the LSI may be used.
- the present disclosure may be implemented as digital or analog processing.
- a communication device may include a radio transceiver and processing/control circuitry.
- a wireless transceiver may include a receiver section and a transmitter section, or functions thereof.
- a wireless transceiver (transmitter, receiver) may include an RF (Radio Frequency) module and one or more antennas.
- RF modules may include amplifiers, RF modulators/demodulators, or the like.
- Non-limiting examples of communication devices include telephones (mobile phones, smart phones, etc.), tablets, personal computers (PCs) (laptops, desktops, notebooks, etc.), cameras (digital still/video cameras, etc.).
- digital players digital audio/video players, etc.
- wearable devices wearable cameras, smartwatches, tracking devices, etc.
- game consoles digital book readers
- telehealth and telemedicine (remote health care/medicine prescription) devices vehicles or mobile vehicles with communication capabilities (automobiles, planes, ships, etc.), and combinations of the various devices described above.
- Communication equipment is not limited to portable or movable equipment, but any type of equipment, device or system that is non-portable or fixed, e.g. smart home devices (household appliances, lighting equipment, smart meters or measuring instruments, control panels, etc.), vending machines, and any other "Things" that can exist on the IoT (Internet of Things) network.
- smart home devices household appliances, lighting equipment, smart meters or measuring instruments, control panels, etc.
- vending machines and any other "Things” that can exist on the IoT (Internet of Things) network.
- Communication includes data communication by cellular system, wireless LAN system, communication satellite system, etc., as well as data communication by a combination of these.
- Communication apparatus also includes devices such as controllers and sensors that are connected or coupled to communication devices that perform the communication functions described in this disclosure. Examples include controllers and sensors that generate control and data signals used by communication devices to perform the communication functions of the communication device.
- Communication equipment also includes infrastructure equipment, such as base stations, access points, and any other equipment, device, or system that communicates with or controls the various equipment, not limited to those listed above. .
- a terminal includes a transmission circuit that repeatedly transmits a signal, and when part of the repeated transmission is not performed, the repetition is performed based on whether a determination condition is satisfied or not. a control circuit for determining either continuation of transmission or termination of said repeated transmission.
- the determination condition is a condition using a threshold regarding the number of transmissions of the signal, and the control circuit determines whether the signal is transmitted before the part of the repeated transmissions.
- the continuation is determined when the sum of the number of times the signal is transmitted and the number of times the signal can be transmitted after the partial transmission is equal to or greater than the threshold, and the termination is determined when the sum is less than the threshold.
- the determination condition is a condition using a specified number of transmission opportunities for the signal from the beginning of the repeated transmission, and the control circuit controls the transmission of the part in the specified number of transmission opportunities. is determined to terminate if no is performed, and to continue if said repeated transmissions are performed in said defined number of transmission opportunities.
- the determination condition is a condition using a period corresponding to a period of Configured grant transmission, and the control circuit determines the end of transmission after the period in the repeated transmission. do.
- the determination condition is a condition using a second interval longer than a first interval corresponding to a cycle of Configured grant transmission, and the control circuit causes the second interval of the repeated transmission Determining said termination of later transmissions.
- the determination condition is a condition using a threshold value related to the number of transmissions of the signal and a period corresponding to a period of Configured grant transmission, and the control circuit causes the if the sum of the number of times the signal was transmitted before the partial transmission within the interval and the number of times the signal can be transmitted after the partial transmission within the interval is equal to or greater than the threshold, determining continuation and determining said termination if said sum is less than said threshold or for transmission after said interval.
- the determination condition is a condition using a threshold for the number of transmissions of the signal and a second interval longer than the first interval corresponding to the cycle of the configured grant transmission, and the control circuit Among the repeated transmissions, the number of times the signal has been transmitted before the partial transmission within the second interval, and the number of times the signal can be transmitted after the partial transmission within the second interval. , is greater than or equal to the threshold, and the termination is determined if the sum is less than the threshold or for transmission after the second interval.
- the determination condition is a condition using a specified number of transmission opportunities of the signal from the beginning of the repeated transmission and a section corresponding to a period of Configured grant transmission, and the control circuit determining the termination if the partial transmission is not performed in the specified number of transmission opportunities in the interval, and determining the continuation if the repeated transmission is performed in the specified number of transmission opportunities in the interval; decide.
- the determination condition is a condition using a specified number of transmission opportunities for the signal from the start of the repeated transmission, and a second interval longer than the first interval corresponding to the cycle of the Configured grant transmission. wherein the control circuit determines the termination if the partial transmission is not performed in the specified number of transmission opportunities in the second interval, and determines the termination in the specified number of transmission opportunities in the second interval. The continuation is determined when the repeated transmission is performed.
- the parameter used for the determination condition is a value specified in a standard or a value notified from the base station to the terminal.
- the parameter is a value that does not depend on the number of repetition transmissions.
- the parameter is a value dependent on the number of repetition transmissions.
- the parameter is a value that depends on the number of repetition transmissions and the number of symbols in which demodulation reference signals are arranged in each slot in which the repetition transmission is performed.
- the parameters are transmitted from the base station to the terminal by at least one of Radio Resource Control (RRC), Medium Access Control-Control Element (MAC-CE), and Activation Downlink Control Information (DCI). to be notified.
- RRC Radio Resource Control
- MAC-CE Medium Access Control-Control Element
- DCI Activation Downlink Control Information
- the parameter is a value determined based on notification information different from the information regarding the determination condition.
- a base station includes a receiving circuit that receives repeated transmission of a signal, and based on whether or not a determination condition is satisfied when part of the repeated transmission is not performed. and a control circuit for determining either continuation of the repeated transmission or termination of the repeated transmission.
- the terminal repeatedly transmits a signal, and if part of the repeated transmission is not performed, the terminal determines whether the determination condition is satisfied based on whether or not the determination condition is satisfied. Either continuation of repeated transmission or termination of said repeated transmission is determined.
- a base station receives repeated signal transmissions, and if part of the repeated transmissions is not performed, based on whether a determination condition is satisfied or not. to determine whether to continue the repeated transmission or to end the repeated transmission.
- An embodiment of the present disclosure is useful for wireless communication systems.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
本開示の各実施の形態に係る通信システムは、例えば、少なくとも1つの基地局と、少なくとも1つの端末と、を備える。
[基地局の構成]
図6は、基地局100の構成例を示すブロック図である。図6に例示した基地局100の構成例は、後述する他の実施の形態および変形例を含む本開示の全体を通じて共通であってよい。
次に、図7を参照して、端末200の構成例について説明する。図7に示すように、端末200は、例えば、受信部201、抽出部202、復調部203、復号部204、及び、制御部205を備えてよい。また、端末200は、例えば、符号化部206、変調部207、信号割当部208、及び、送信部209を備えてよい。
以上の構成を有する端末200の動作例について説明する。
端末200は、例えば、PUSCH repetitionに関する情報に基づいて、PUSCH送信に使用可能な上りリンクスロットを決定する(S102)。
図8において、端末200は、Step 1において決定したPUSCH送信に使用可能な上りリンクスロット(例えば、n番目のPUCCH transmission occasion)において、実際にPUSCH送信するか否かを決定する(S103)。なお、端末200は、Step 2において、PUSCH送信しない(PUSCH送信をドロップする)ことを決定したスロットについても繰り返しスロット数としてカウントしてよい。
端末200は、Step 2においてPUSCHを送信しない(PUSCH送信をドロップする)と判断した場合(S104:Yes)、当該スロット以降のスロットにおいてRepetition送信を継続するか、当該スロット以降のRepetition送信を打ち切る(送信を止める)かを、上述した方法(例えば、閾値Nを用いた判定方法)に基づいて決定してよい(S105)。
Step 3においてRepetition送信の継続及び打ち切りの判断に使用される閾値Nは、規格において決定(又は、規定)される値でもよいし、基地局100から端末200に対して通知される値(パラメータ)でもよい。
本実施の形態に係る基地局100及び端末200の構成は、実施の形態1の構成と同様でよい。
端末200に対して、例えば、Repetition送信に用いるスロット内の時間リソース割当、及び、繰り返しスロット数KといったPUSCH repetitionに関する情報が通知されてよい(例えば、S101)。
端末200は、Step 1において決定したPUSCH送信に使用可能な上りリンクスロット(例えば、n番目のPUCCH transmission occasion)において、実際にPUSCH送信するか否かを決定する(S103)。なお、端末200は、Step 2において、PUSCH送信しない(PUSCH送信をドロップする)ことを決定したスロットについても繰り返しスロット数としてカウントしてよい。
端末200は、Step 2においてPUSCHを送信しない(PUSCH送信をドロップする)と判断した場合(S104:Yes)、当該スロット以降のスロットにおいてRepetition送信を継続するか、当該スロット以降のRepetition送信を打ち切る(送信を止める)かを、上述した方法(例えば、規定数Mを用いた判定方法)に基づいて決定してよい(S105)。
Step 3においてRepetition送信の継続及び打ち切りの判断に使用される規定値M(Repetitionの先頭スロット数)は、規格において決定(又は、規定)される値でもよいし、基地局100から端末200に対して通知される値(パラメータ)でもよい。
本実施の形態に係る基地局100及び端末200の構成は、実施の形態1の構成と同様でよい。
Option 1では、端末200は、例えば、周期P内の最後のPUSCH送信に使用可能な上りリンクスロット以降のRepetition送信を打ち切る(送信を止める)。換言すると、Option 1では、例えば、Repetition回数KのConfigured grant伝送のRepetition(例えば、K個のPUSCH送信に使用可能な上りリンクスロット)により与えられる時間長が周期Pにより与えられる時間長よりも大きくなることを許容しない。
Option 2では、例えば、Repetition回数KのConfigured grant伝送のRepetition(例えば、K個のPUSCH送信に使用可能な上りリンクスロット)により与えられる時間長が周期Pにより与えられる時間長よりも大きくなることを許容する。
Option 2-1では、Pmaxは、Configured grant伝送の周期Pによって与えられる区間の次の周期Pの区間を含む時間長に設定されてよい。つまり、Pmaxは、2×Pで与えられる時間長に設定されてよい。
Option 2-2では、Pmaxは、Configured grant伝送の周期Pと独立なパラメータとして設定されてもよい。
Option 2-3では、Pmaxは、Configured grant伝送の周期Pによって与えられる区間に係数を乗算した時間長に設定されてもよい。例えば、Pmaxは、Pmax=α×Pで与えられる時間長に設定されてよいここで、αはスケーリング係数(scaling factor)である。
実施の形態3では、Configured grant伝送におけるRepetitionに対する動作について説明したが、PUSCH送信に使用可能な上りリンクスロットを延期する最大の時間長Pmaxは、Configured grant伝送に限らず、Dynamic grant伝送に対して適用されてもよい。
上述した各実施の形態、各変形例、及び、各補足に示した機能、動作又は処理を端末200がサポートするか否かを示す情報が、例えば、端末200の能力(capability)情報あるいは能力パラメータとして、端末200から基地局100へ送信(あるいは通知)されてもよい。
本開示において、本開示に関連する下り制御信号(情報)は、物理層のPDCCHで送信される信号(情報)でもよく、上位レイヤのMAC CE(Control Element)又はRRCで送信される信号(情報)でもよい。また、下り制御信号は、予め規定されている信号(情報)としてもよい。
本開示において、基地局は、TRP(Transmission Reception Point)、クラスタヘッド、アクセスポイント、RRH(Remote Radio Head)、eNodeB (eNB)、gNodeB(gNB)、BS(Base Station)、BTS(Base Transceiver Station)、親機、ゲートウェイ等でもよい。また、サイドリンク通信においては、基地局は端末に置き換えられてもよい。基地局は、上位ノードと端末の通信を中継する中継装置であってもよい。また、基地局は、路側器であってもよい。
本開示は、上りリンク、下りリンク、サイドリンクのいずれに適用してもよい。例えば、本開示を上りリンクのPUSCH、PUCCH、PRACH、下りリンクのPDSCH、PDCCH、PBCH、サイドリンクのPSSCH(Physical Sidelink Shared Channel)、PSCCH(Physical Sidelink Control Channel)、PSBCH(Physical Sidelink Broadcast Channel)に適用してもよい。
本開示は、データチャネル及び制御チャネルのいずれに適用してもよい。例えば、本開示のチャネルをデータチャネルのPDSCH、PUSCH、PSSCH、制御チャネルのPDCCH、PUCCH、PBCH、PSCCH、PSBCHに置き換えてもよい。
本開示において、参照信号は、基地局及び端末の双方で既知の信号であり、RS (Reference Signal)又はパイロット信号と呼ばれることもある。参照信号は、DMRS、CSI-RS(Channel State Information - Reference Signal)、TRS(Tracking Reference Signal)、PTRS(Phase Tracking Reference Signal)、CRS(Cell-specific Reference Signal)、 SRS(Sounding Reference Signal)のいずれかであってもよい。
本開示において、時間リソースの単位は、スロット及びシンボルの1つ又は組み合わせに限らず、例えば、フレーム、スーパーフレーム、サブフレーム、スロット、タイムスロット、サブスロット、ミニスロット又は、シンボル、OFDM(Orthogonal Frequency Division Multiplexing)シンボル、SC-FDMA(Single Carrier - Frequency Division Multiple Access)シンボルといった時間リソース単位でもよく、他の時間リソース単位でもよい。また、1スロットに含まれるシンボル数は、上述した実施の形態において例示したシンボル数に限定されず、他のシンボル数でもよい。
本開示は、ライセンスバンド、アンライセンスバンドのいずれに適用してもよい。
本開示は、基地局と端末との間の通信(Uuリンク通信)、端末と端末との間の通信(Sidelink通信)、V2X(Vehicle to Everything)の通信のいずれに適用してもよい。例えば、本開示のチャネルをPSCCH、PSSCH、PSFCH(Physical Sidelink Feedback Channel)、PSBCH、PDCCH、PUCCH、PDSCH、PUSCH、PBCHに置き換えてもよい。
アンテナポートは、1本または複数の物理アンテナから構成される論理的なアンテナ(アンテナグループ)を指す。すなわち、アンテナポートは必ずしも1本の物理アンテナを指すとは限らず、複数のアンテナから構成されるアレイアンテナ等を指すことがある。例えば、アンテナポートが何本の物理アンテナから構成されるかは規定されず、端末が参照信号(Reference signal)を送信できる最小単位として規定される。また、アンテナポートはプリコーディングベクトル(Precoding vector)の重み付けを乗算する最小単位として規定されることもある。
3GPPは、100GHzまでの周波数範囲で動作する新無線アクセス技術(NR)の開発を含む第5世代携帯電話技術(単に「5G」ともいう)の次のリリースに向けて作業を続けている。5G規格の初版は2017年の終わりに完成しており、これにより、5G NRの規格に準拠した端末(例えば、スマートフォン)の試作および商用展開に移ることが可能である。
図14は、NG-RANと5GCとの間の機能分離を示す。NG-RANの論理ノードは、gNBまたはng-eNBである。5GCは、論理ノードAMF、UPF、およびSMFを有する。
- 無線ベアラ制御(Radio Bearer Control)、無線アドミッション制御(Radio Admission Control)、接続モビリティ制御(Connection Mobility Control)、上りリンクおよび下りリンクの両方におけるリソースのUEへの動的割当(スケジューリング)等の無線リソース管理(Radio Resource Management)の機能;
- データのIPヘッダ圧縮、暗号化、および完全性保護;
- UEが提供する情報からAMFへのルーティングを決定することができない場合のUEのアタッチ時のAMFの選択;
- UPFに向けたユーザプレーンデータのルーティング;
- AMFに向けた制御プレーン情報のルーティング;
- 接続のセットアップおよび解除;
- ページングメッセージのスケジューリングおよび送信;
- システム報知情報(AMFまたは運用管理保守機能(OAM:Operation、 Admission、 Maintenance)が発信源)のスケジューリングおよび送信;
- モビリティおよびスケジューリングのための測定および測定報告の設定;
- 上りリンクにおけるトランスポートレベルのパケットマーキング;
- セッション管理;
- ネットワークスライシングのサポート;
- QoSフローの管理およびデータ無線ベアラに対するマッピング;
- RRC_INACTIVE状態のUEのサポート;
- NASメッセージの配信機能;
- 無線アクセスネットワークの共有;
- デュアルコネクティビティ;
- NRとE-UTRAとの緊密な連携。
- Non-Access Stratum(NAS)シグナリングを終端させる機能;
- NASシグナリングのセキュリティ;
- Access Stratum(AS)のセキュリティ制御;
- 3GPPのアクセスネットワーク間でのモビリティのためのコアネットワーク(CN:Core Network)ノード間シグナリング;
- アイドルモードのUEへの到達可能性(ページングの再送信の制御および実行を含む);
- 登録エリアの管理;
- システム内モビリティおよびシステム間モビリティのサポート;
- アクセス認証;
- ローミング権限のチェックを含むアクセス承認;
- モビリティ管理制御(加入およびポリシー);
- ネットワークスライシングのサポート;
- Session Management Function(SMF)の選択。
- intra-RATモビリティ/inter-RATモビリティ(適用可能な場合)のためのアンカーポイント;
- データネットワークとの相互接続のための外部PDU(Protocol Data Unit)セッションポイント;
- パケットのルーティングおよび転送;
- パケット検査およびユーザプレーン部分のポリシールールの強制(Policy rule enforcement);
- トラフィック使用量の報告;
- データネットワークへのトラフィックフローのルーティングをサポートするための上りリンククラス分類(uplink classifier);
- マルチホームPDUセッション(multi-homed PDU session)をサポートするための分岐点(Branching Point);
- ユーザプレーンに対するQoS処理(例えば、パケットフィルタリング、ゲーティング(gating)、UL/DLレート制御(UL/DL rate enforcement);
- 上りリンクトラフィックの検証(SDFのQoSフローに対するマッピング);
- 下りリンクパケットのバッファリングおよび下りリンクデータ通知のトリガ機能。
- セッション管理;
- UEに対するIPアドレスの割当および管理;
- UPFの選択および制御;
- 適切な宛先にトラフィックをルーティングするためのUser Plane Function(UPF)におけるトラフィックステアリング(traffic steering)の設定機能;
- 制御部分のポリシーの強制およびQoS;
- 下りリンクデータの通知。
図15は、NAS部分の、UEがRRC_IDLEからRRC_CONNECTEDに移行する際のUE、gNB、およびAMF(5GCエンティティ)の間のやり取りのいくつかを示す(TS 38.300 v15.6.0参照)。
図16は、5G NRのためのユースケースのいくつかを示す。3rd generation partnership project new radio(3GPP NR)では、多種多様なサービスおよびアプリケーションをサポートすることがIMT-2020によって構想されていた3つのユースケースが検討されている。大容量・高速通信(eMBB:enhanced mobile-broadband)のための第一段階の仕様の策定が終了している。現在および将来の作業には、eMBBのサポートを拡充していくことに加えて、高信頼・超低遅延通信(URLLC:ultra-reliable and low-latency communications)および多数同時接続マシンタイプ通信(mMTC:massive machine-type communicationsのための標準化が含まれる。図16は、2020年以降のIMTの構想上の利用シナリオのいくつかの例を示す(例えばITU-R M.2083 図2参照)。
5GのQoS(Quality of Service)モデルは、QoSフローに基づいており、保証されたフロービットレートが求められるQoSフロー(GBR:Guaranteed Bit Rate QoSフロー)、および、保証されたフロービットレートが求められないQoSフロー(非GBR QoSフロー)をいずれもサポートする。したがって、NASレベルでは、QoSフローは、PDUセッションにおける最も微細な粒度のQoSの区分である。QoSフローは、NG-Uインタフェースを介してカプセル化ヘッダ(encapsulation header)において搬送されるQoSフローID(QFI:QoS Flow ID)によってPDUセッション内で特定される。
101、205 制御部
102 上位制御信号生成部
103 下りリンク制御情報生成部
104、206 符号化部
105、207 変調部
106、208 信号割当部
107、209 送信部
108、201 受信部
109、202 抽出部
110、203 復調部
111、204 復号部
200 端末
Claims (15)
- 信号の繰り返し送信を行う送信回路と、
前記繰り返し送信のうち一部の送信が行われない場合に、判定条件を満たすか否かに基づいて、前記繰り返し送信の継続、及び、前記繰り返し送信の終了の何れかを決定する制御回路と、
を具備する端末。 - 前記判定条件は、前記信号の送信回数に関する閾値を用いる条件であり、
前記制御回路は、前記繰り返し送信のうち、前記一部の送信より前に前記信号が送信された回数と、前記一部の送信以降に前記信号を送信可能な回数と、の和が前記閾値以上の場合に前記継続を決定し、前記和が前記閾値未満の場合に前記終了を決定する、
請求項1に記載の端末。 - 前記判定条件は、前記繰り返し送信の先頭から規定数の前記信号の送信機会を用いる条件であり、
前記制御回路は、前記規定数の送信機会において前記一部の送信が行われない場合に前記終了を決定し、前記規定数の送信機会において前記繰り返し送信が行われる場合に前記継続を決定する、
請求項1に記載の端末。 - 前記判定条件は、Configured grant伝送の周期に対応する区間を用いる条件であり、
前記制御回路は、前記繰り返し送信のうち、前記区間より後の送信の前記終了を決定する、
請求項1に記載の端末。 - 前記判定条件は、Configured grant伝送の周期に対応する第1区間より長い第2区間を用いる条件であり、
前記制御回路は、前記繰り返し送信のうち、前記第2区間より後の送信の前記終了を決定する、
請求項1に記載の端末。 - 前記判定条件は、前記信号の送信回数に関する閾値、及び、Configured grant伝送の周期に対応する区間を用いる条件であり、
前記制御回路は、前記繰り返し送信のうち、前記区間内において前記一部の送信より前に前記信号が送信された回数と、前記区間内において前記一部の送信以降に前記信号を送信可能な回数と、の和が前記閾値以上の場合に前記継続を決定し、前記和が前記閾値未満の場合又は前記区間より後の送信に対して前記終了を決定する、
請求項1に記載の端末。 - 前記判定条件は、前記信号の送信回数に関する閾値、及び、Configured grant伝送の周期に対応する第1区間より長い第2区間を用いる条件であり、
前記制御回路は、前記繰り返し送信のうち、前記第2区間内において前記一部の送信より前に前記信号が送信された回数と、前記第2区間内において前記一部の送信以降に前記信号を送信可能な回数と、の和が前記閾値以上の場合に前記継続を決定し、前記和が前記閾値未満の場合又は前記第2区間より後の送信に対して前記終了を決定する、
請求項1に記載の端末。 - 前記判定条件は、前記繰り返し送信の先頭から規定数の前記信号の送信機会、及び、Configured grant伝送の周期に対応する区間を用いる条件であり、
前記制御回路は、前記区間内の前記規定数の送信機会において前記一部の送信が行われない場合に前記終了を決定し、前記区間内の前記規定数の送信機会において前記繰り返し送信が行われる場合に前記継続を決定する、
請求項1に記載の端末。 - 前記判定条件は、前記繰り返し送信の開始から規定数の前記信号の送信機会、及び、Configured grant伝送の周期に対応する第1区間より長い第2区間を用いる条件であり、
前記制御回路は、前記第2区間内の前記規定数の送信機会において前記一部の送信が行われない場合に前記終了を決定し、前記第2区間内の前記規定数の送信機会において前記繰り返し送信が行われる場合に前記継続を決定する、
請求項1に記載の端末。 - 前記判定条件に使用されるパラメータは、規格において規定される値、又は、基地局から前記端末へ通知される値である、
請求項1に記載の端末。 - 前記パラメータは、前記繰り返し送信の回数に依存しない値である、
請求項10に記載の端末。 - 前記パラメータは、前記判定条件に関する情報と異なる通知情報に基づいて決定される値である、
請求項10に記載の端末。 - 信号の繰り返し送信の受信を行う受信回路と、
前記繰り返し送信のうち一部の送信が行われない場合に、判定条件を満たすか否かに基づいて、前記繰り返し送信の継続、及び、前記繰り返し送信の終了の何れかを判定する制御回路と、
を具備する基地局。 - 端末は、
信号の繰り返し送信を行い、
前記繰り返し送信のうち一部の送信が行われない場合に、判定条件を満たすか否かに基づいて、前記繰り返し送信の継続、及び、前記繰り返し送信の終了の何れかを決定する、
通信方法。 - 基地局は、
信号の繰り返し送信の受信を行い、
前記繰り返し送信のうち一部の送信が行われない場合に、判定条件を満たすか否かに基づいて、前記繰り返し送信の継続、及び、前記繰り返し送信の終了の何れかを判定する、
通信方法。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202280049906.5A CN117694010A (zh) | 2021-08-02 | 2022-05-06 | 终端、基站及通信方法 |
| JP2023539652A JPWO2023013192A1 (ja) | 2021-08-02 | 2022-05-06 | |
| EP22852621.6A EP4383906A4 (en) | 2021-08-02 | 2022-05-06 | TERMINAL, BASE STATION AND COMMUNICATION METHOD |
| US18/576,082 US20240333428A1 (en) | 2021-08-02 | 2022-05-06 | Terminal, base station, and communication method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021126684 | 2021-08-02 | ||
| JP2021-126684 | 2021-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023013192A1 true WO2023013192A1 (ja) | 2023-02-09 |
Family
ID=85155601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2022/019560 Ceased WO2023013192A1 (ja) | 2021-08-02 | 2022-05-06 | 端末、基地局及び通信方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20240333428A1 (ja) |
| EP (1) | EP4383906A4 (ja) |
| JP (1) | JPWO2023013192A1 (ja) |
| CN (1) | CN117694010A (ja) |
| WO (1) | WO2023013192A1 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12323971B2 (en) * | 2021-07-06 | 2025-06-03 | Acer Incorporated | Device of handling PUSCH transmissions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020166082A1 (ja) * | 2019-02-15 | 2020-08-20 | 株式会社Nttドコモ | ユーザ端末及び無線通信方法 |
| JP2021073779A (ja) * | 2015-04-19 | 2021-05-13 | アルカテル・ルーセント | Lc−mtcデバイスに対するアップリンク制御メッセージ間の衝突を防止するための方法および装置 |
| JP2021126684A (ja) | 2020-02-14 | 2021-09-02 | 日本製鉄株式会社 | 圧延装置の制御装置、圧延装置の制御方法、及び圧延装置の制御プログラム |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3216149B1 (en) * | 2014-11-06 | 2020-05-06 | Intel IP Corporation | Early termination of repeated transmissions for mtc |
| AU2018236650B2 (en) * | 2017-03-16 | 2022-04-21 | Lg Electronics Inc. | Operation method of terminal and base station in wireless communication system, and device supporting same |
| WO2019156466A1 (ko) * | 2018-02-07 | 2019-08-15 | 엘지전자 주식회사 | 무선 통신 시스템에서 신호를 송신 또는 수신하는 방법 및 이를 위한 장치 |
| JP6972332B2 (ja) * | 2018-04-05 | 2021-11-24 | エルジー エレクトロニクス インコーポレイティドLg Electronics Inc. | 無線通信システムにおいて信号を送信又は受信する方法及びそのための装置 |
| CN113475026B (zh) * | 2019-02-21 | 2024-12-27 | 苹果公司 | 用于新空口(nr)中的物理上行链路共享信道(pusch)重复终止的系统和方法 |
| WO2021211728A1 (en) * | 2020-04-14 | 2021-10-21 | Idac Holdings, Inc. | Methods and apparatuses for improved voice coverage |
| WO2022032202A1 (en) * | 2020-08-06 | 2022-02-10 | Apple Inc. | Cancellation and replacement of pusch |
| EP4252467A1 (en) * | 2021-01-15 | 2023-10-04 | Lenovo (Singapore) Pte. Ltd. | Indicating a resource set for uplink repetition |
| WO2022212275A1 (en) * | 2021-03-30 | 2022-10-06 | Idac Holdings, Inc. | Methods and apparatus for pusch repetition |
-
2022
- 2022-05-06 CN CN202280049906.5A patent/CN117694010A/zh active Pending
- 2022-05-06 EP EP22852621.6A patent/EP4383906A4/en active Pending
- 2022-05-06 WO PCT/JP2022/019560 patent/WO2023013192A1/ja not_active Ceased
- 2022-05-06 JP JP2023539652A patent/JPWO2023013192A1/ja active Pending
- 2022-05-06 US US18/576,082 patent/US20240333428A1/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021073779A (ja) * | 2015-04-19 | 2021-05-13 | アルカテル・ルーセント | Lc−mtcデバイスに対するアップリンク制御メッセージ間の衝突を防止するための方法および装置 |
| WO2020166082A1 (ja) * | 2019-02-15 | 2020-08-20 | 株式会社Nttドコモ | ユーザ端末及び無線通信方法 |
| JP2021126684A (ja) | 2020-02-14 | 2021-09-02 | 日本製鉄株式会社 | 圧延装置の制御装置、圧延装置の制御方法、及び圧延装置の制御プログラム |
Non-Patent Citations (9)
| Title |
|---|
| "NR Base Station (BS) radio transmission and reception (Release 15", 3GPP TS38.104 V15.14.0, June 2021 (2021-06-01) |
| "NR Multiplexing and channel coding (Release 16", 3GPP TS38.212 V16.6.0, June 2021 (2021-06-01) |
| "NR Physical channels and modulation (Release 16", 3GPP TS38.211 V16.6.0, June 2021 (2021-06-01) |
| "NR Physical layer procedures for control (Release 16", GPP TS38.213 V16.6.0, June 2021 (2021-06-01) |
| "NR Physical layer procedures for data (Release 16", GPP TS38.214 V16.6.0, June 2021 (2021-06-01) |
| "NR Radio Resource Control (RRC) protocol specification (Release 16", 3GPP TS38.331 V16.5.0, June 2021 (2021-06-01) |
| NEW WID ON NR COVERAGE ENHANCEMENTS, December 2020 (2020-12-01) |
| See also references of EP4383906A4 |
| XIAOMI: "Discussion on enhancements on PUSCH repetition type A", 3GPP DRAFT; R1-2101127, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210125 - 20210205, 18 January 2021 (2021-01-18), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051970681 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4383906A1 (en) | 2024-06-12 |
| CN117694010A (zh) | 2024-03-12 |
| EP4383906A4 (en) | 2024-10-23 |
| US20240333428A1 (en) | 2024-10-03 |
| JPWO2023013192A1 (ja) | 2023-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7670677B2 (ja) | 端末、通信方法及び集積回路 | |
| WO2023013191A1 (ja) | 通信装置、及び、通信方法 | |
| WO2023188913A1 (ja) | 基地局、端末及び通信方法 | |
| WO2023100470A1 (ja) | 基地局、端末及び通信方法 | |
| WO2022215390A1 (ja) | 端末、基地局及び通信方法 | |
| WO2022208989A1 (ja) | 通信装置、及び、通信方法 | |
| WO2022201652A1 (ja) | 端末、基地局、及び、通信方法 | |
| WO2022014279A1 (ja) | 端末、基地局及び通信方法 | |
| WO2023013192A1 (ja) | 端末、基地局及び通信方法 | |
| WO2024157643A1 (ja) | 端末、基地局、及び、通信方法 | |
| WO2023119756A1 (ja) | 通信装置及び通信方法 | |
| JP7701928B2 (ja) | 基地局、通信方法および集積回路 | |
| WO2024100918A1 (ja) | 端末、基地局及び通信方法 | |
| WO2023181556A1 (ja) | 端末、基地局及び通信方法 | |
| WO2022239289A1 (ja) | 通信装置、及び、通信方法 | |
| WO2022201651A1 (ja) | 基地局、端末、及び、通信方法 | |
| JP7757388B2 (ja) | 端末、通信方法及び集積回路 | |
| WO2025069635A1 (ja) | 端末、基地局、及び、通信方法 | |
| WO2023203938A1 (ja) | 端末、基地局、通信方法及び集積回路 | |
| WO2024100924A1 (ja) | 端末、基地局、及び、通信方法 | |
| WO2024171521A1 (ja) | 基地局、端末及び通信方法 | |
| WO2025033039A1 (ja) | 端末、及び、通信方法 | |
| WO2025033046A1 (ja) | 基地局、端末及び通信方法 | |
| WO2024024259A1 (ja) | 端末、基地局、及び、通信方法 | |
| WO2023013204A1 (ja) | 端末、基地局、及び、通信方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22852621 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 18576082 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2023539652 Country of ref document: JP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202280049906.5 Country of ref document: CN |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2022852621 Country of ref document: EP Effective date: 20240304 |