WO2021070397A1 - 端末及び通信方法 - Google Patents
端末及び通信方法 Download PDFInfo
- Publication number
- WO2021070397A1 WO2021070397A1 PCT/JP2019/040341 JP2019040341W WO2021070397A1 WO 2021070397 A1 WO2021070397 A1 WO 2021070397A1 JP 2019040341 W JP2019040341 W JP 2019040341W WO 2021070397 A1 WO2021070397 A1 WO 2021070397A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- msga
- transmission opportunity
- terminal
- random access
- transmission
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 94
- 238000004891 communication Methods 0.000 title claims description 47
- 230000005540 biological transmission Effects 0.000 claims abstract description 130
- 230000006870 function Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 18
- 238000012545 processing Methods 0.000 description 11
- 238000013468 resource allocation Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000011664 signaling Effects 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 4
- 238000013507 mapping Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 101100274486 Mus musculus Cited2 gene Proteins 0.000 description 2
- 101100533725 Mus musculus Smr3a gene Proteins 0.000 description 2
- 101150096622 Smr2 gene Proteins 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 101150071746 Pbsn gene Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
Definitions
- the present invention relates to a terminal and a communication method in a wireless communication system.
- Non-Patent Document 1 NR (New Radio) (also called “5G”), which is the successor system to LTE (Long Term Evolution), the requirements are a large-capacity system, high-speed data transmission speed, low delay, and simultaneous operation of many terminals. Techniques that satisfy connection, low cost, power saving, etc. are being studied (for example, Non-Patent Document 1).
- Random access is executed for synchronization establishment or scheduling request between terminals and base stations.
- CBRA Contention-based random access
- CFRA Contention-free random access
- the terminal and the base station have the transmission opportunity (occasion) of PRACH (Physical Random Access Channel) of MsgA. It is associated with the transmission opportunity of PUSCH (Physical Uplink Shared Channel) that transmits the data portion excluding the random access preamble of MsgA.
- PRACH Physical Random Access Channel
- PUSCH Physical Uplink Shared Channel
- the PRACH transmission opportunity and the downlink or SSB (SS / PBCH block) partially or completely overlap in the time domain, it is assumed that the PRACH transmission opportunity is invalid and will not be used. Will be done. In this case, it is necessary to appropriately change the association between the transmission opportunity of PRACH and the transmission opportunity of PUSCH.
- the present invention has been made in view of the above points, and an object of the present invention is to determine a resource to be used for a two-step random access procedure in a wireless communication system.
- a first transmission opportunity for transmitting the message used in the two-step random access procedure on the physical random access channel and a second transmission opportunity for transmitting the message on the physical uplink shared channel are specified.
- the control unit has a control unit for transmitting the message using the first transmission opportunity and the second transmission opportunity, and the control unit invalidates the first transmission opportunity.
- a terminal is provided that modifies the method of identifying the second transmission opportunity.
- LTE Long Term Evolution
- LTE-Advanced LTE-Advanced and later methods (eg, NR) unless otherwise specified.
- SS Synchronization signal
- PSS Primary SS
- SSS Secondary SS
- PBCH Physical broadcast channel
- PRACH Physical
- PDCCH Physical Downlink Control Channel
- PDSCH Physical Downlink Shared Channel
- PUCCH Physical Uplink Control Channel
- PUSCH Physical Uplink Shared Channel
- NR corresponds to NR-SS, NR-PSS, NR-SSS, NR-PBCH, NR-PRACH and the like. However, even if it is a signal used for NR, it is not always specified as "NR-".
- the duplex system may be a TDD (Time Division Duplex) system, an FDD (Frequency Division Duplex) system, or other system (for example, Flexible Duplex, etc.). Method may be used.
- TDD Time Division Duplex
- FDD Frequency Division Duplex
- Method may be used.
- "configuring" the radio parameter or the like may mean that a predetermined value is set in advance (Pre-configure), or the base station 10 or The radio parameter notified from the terminal 20 may be set.
- FIG. 1 is a diagram showing a configuration example of a wireless communication system according to the embodiment of the present invention.
- the wireless communication system according to the embodiment of the present invention includes a base station 10 and a terminal 20 as shown in FIG.
- FIG. 1 shows one base station 10 and one terminal 20, this is an example, and there may be a plurality of each.
- the base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20.
- the physical resources of the radio signal are defined in the time domain and the frequency domain, the time domain may be defined by the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols, and the frequency domain is defined by the number of subcarriers or the number of resource blocks. May be good.
- the base station 10 transmits a synchronization signal and system information to the terminal 20. Synchronous signals are, for example, NR-PSS and NR-SSS.
- the system information is transmitted by, for example, NR-PBCH, and is also referred to as broadcast information. As shown in FIG.
- the base station 10 transmits a control signal or data to the terminal 20 by DL (Downlink), and receives the control signal or data from the terminal 20 by UL (Uplink). Both the base station 10 and the terminal 20 can perform beamforming to transmit and receive signals. Further, both the base station 10 and the terminal 20 can apply MIMO (Multiple Input Multiple Output) communication to DL or UL. Further, both the base station 10 and the terminal 20 may communicate via a secondary cell (SCell: Secondary Cell) and a primary cell (PCell: Primary Cell) by CA (Carrier Aggregation). Further, the terminal 20 may perform communication via the primary cell of the base station 10 by DC (Dual Connectivity) and the primary secondary cell (PSCell: Primary Secondary Cell) of another base station 10.
- SCell Secondary Cell
- PCell Primary Cell
- CA Carrier Aggregation
- the terminal 20 is a communication device having a wireless communication function such as a smartphone, a mobile phone, a tablet, a wearable terminal, and a communication module for M2M (Machine-to-Machine). As shown in FIG. 1, the terminal 20 receives a control signal or data from the base station 10 by DL, and transmits the control signal or data to the base station 10 by UL, so that various types provided by the wireless communication system are provided. Use communication services.
- M2M Machine-to-Machine
- the terminal 20 uses the random access preamble or the UE (User Equipment) identifier as the UL signal as the base station. 10 is transmitted, and the base station 10 transmits information for performing random access response and collision resolution to the terminal 20 as a DL signal.
- the UE User Equipment
- FIG. 2 is a sequence diagram for explaining an example of a 4-step random access procedure.
- An example of a random access procedure shown in FIG. 2 is a contention-based 4-step random access procedure.
- the terminal 20 transmits a random access preamble to the base station 10 as Msg1.
- the base station 10 transmits a random access response to the terminal 20 as Msg2 (S12).
- the terminal 20 transmits the UE identifier to the base station 10 as Msg3 (S13).
- the base station 10 transmits information for performing collision resolution as Msg4 to the terminal 20. If the conflict resolution is successful, the random access procedure is successful and complete.
- FIG. 3 is a sequence diagram for explaining an example of a two-step random access procedure.
- An example of a random access procedure shown in FIG. 3 is a collision-type two-step random access procedure.
- a two-step random access procedure is being considered to complete the random access procedure in a short period of time.
- the terminal 20 transmits the random access preamble via PRACH and the data via PUSCH as MsgA to the base station 10.
- the contents corresponding to Msg1 and Msg3 in the 4-step random access procedure may be transmitted via PUSCH.
- the base station 10 transmits information for random access response and conflict resolution to the terminal 20 as MsgB (S22).
- MsgB may include content corresponding to Msg2 and Msg4 in a 4-step random access procedure. If the conflict resolution is successful, the random access procedure is successful and complete. By adopting the 2-step random access procedure, effects such as low delay and reduction of power consumption are expected.
- a non-collision type (contention free) random access can be executed by assigning a random access preamble from the base station 10 to the terminal 20. ..
- MsgA consists of a random access preamble and PUSCH. It is assumed that the random access preamble and PUSCH are not integrated resources at least in the physical layer. For example, it is assumed that a random access preamble separated as a physical resource and PUSCH are defined as MsgA.
- the MsgA-PUSCH transmission opportunity may be defined as one MsgA-PUSCH resource.
- the MsgA-PRACH transmission opportunity (MsgA PRACH occurrence) may be defined as a resource for transmitting one MsgA-preamble.
- MsgA-PUSCH transmission opportunity is also referred to as "MsgA-PO”
- MsgA-PRACH transmission opportunity is also referred to as "MsgA-RO”.
- the MsgA-PRACH transmission opportunity may be 1 and the MsgA-PUSCH transmission opportunity may be 1, or the MsgA-PRACH transmission opportunity may be 1 and the MsgA-PUSCH transmission opportunity may be plural.
- the terminal 20 identifies the MsgA-PRACH transmission opportunity and the MsgA-PUSCH transmission opportunity, and transmits MsgA to the base station 10.
- the MsgA-PRACH slot is a slot that includes an MsgA-PRACH transmission opportunity.
- the MsgA-PUSCH slot is a slot that includes an MsgA-PUSCH transmission opportunity.
- the base station 10 notifies the terminal 20 of the information indicating the position of the MsgA-PRACH slot in the time domain and the information indicating the position of the MsgA-PUSCH slot in the time domain.
- MsgA-RO if the transmission opportunity of PRACH and the downlink or SSB (SS / PBCH block) partially or completely overlap in the time domain, MsgA-RO is invalid and is not used. Is assumed. In this case, it is necessary to appropriately specify the operation related to MsgA-PO which has a corresponding relationship with the invalidated MsgA-RO.
- the "downlink" may be a DL part specified by the TDD configuration.
- the PRACH is set in the MsgA-RO.
- the transmitting terminal 20 transmits the PUSCH with the MsgA-PO, it is not desirable for the terminal 20 to transmit the PRACH and the PUSCH at the same time from the viewpoint of the complexity of the terminal 20 or the PSD (Power Spectral Density).
- the base station 10 side performs analog beamforming.
- the PRACH and PUSCH cannot be received with the appropriate receive beam. That is, only one of PRACH and PUSCH can be received by an appropriate receiving beam.
- the terminal 20 may invalidate the MsgA-PO as well.
- FIG. 4 is a diagram showing a resource allocation example (1) of the two-step random access procedure according to the embodiment of the present invention.
- the terminal 20 has the same corresponding relationship with MsgA-RO. May be invalid.
- the line connecting RO and PO shown in the figure shows that RO and PO have a corresponding relationship.
- the correspondence between MsgA-PO and MsgA-RO may be determined before the determination of whether or not MsgA-RO is invalid is executed.
- FIG. 5A is a diagram showing a resource allocation example (2) of the two-step random access procedure according to the embodiment of the present invention.
- FIG. 5B is a diagram showing a resource allocation example (3) of the two-step random access procedure according to the embodiment of the present invention.
- the invalidated MsgA-RO may be excluded from the target MsgA-RO when determining the correspondence between MsgA-RO and MsgA-PO.
- MsgA-RO is not invalid, the correspondence between MsgA-RO and MsgA-PO is defined as shown in FIG. 5A.
- MsgA-RO when MsgA-RO is invalid, the invalidated MsgA-RO is excluded from the target when establishing the correspondence with MsgA-PO. Therefore, as shown in FIG. 5B, the MsgA-RO is excluded.
- the correspondence between RO and MsgA-PO does not have to be defined.
- FIG. 6A is a diagram showing a resource allocation example (4) of the two-step random access procedure according to the embodiment of the present invention.
- FIG. 6B is a diagram showing a resource allocation example (5) of the two-step random access procedure according to the embodiment of the present invention.
- FIG. 6C is a diagram showing a resource allocation example (6) of the two-step random access procedure according to the embodiment of the present invention.
- the invalidated MsgA-RO may be excluded from the target MsgA-RO when the MsgA-PUSCH slot is specified by the time offset from the MsgA-PRACH slot. ..
- the MsgA-PUSCH slot it is not necessary to specify the MsgA-PUSCH slot by the time offset from the MsgA-PRACH slot containing only the invalidated MsgA-RO. Further, the MsgA-PRACH slot in which the MsgA-PUSCH slot is not specified by the time offset may be invalid.
- the terminal 20 may consider that the designated MsgA-PUSCH slot is invalid.
- MsgA-RO is not invalid, then the MsgA-PUSCH slot is designated by the time offset from the MsgA-PRACH slot containing MsgA-RO, as shown in FIG. 6A, and the MsgA-RO and MsgA-PO Correspondence is determined.
- the MsgA-PUSCH slot is not specified by the time offset from the MsgA-PRACH slot containing only the invalidated MsgA-RO.
- the correspondence between the MsgA-RO and the MsgA-PO may not be defined, or the MsgA-PRACH slot may be invalid.
- the MsgA-PO corresponding to the invalid MsgA-RO may not be arranged or may be invalid. If some of the MsgA-ROs in the MsgA-PRACH slot are invalid, the MsgA-PUSCH slot may not be specified by a time offset from the MsgA-PRACH slot. Further, when a part of MsgA-RO in the MsgA-PRACH slot is invalid, the MsgA-PRACH slot may be invalid. All MsgA-RO contained in the invalid MsgA-PRACH slot may be invalid.
- the correspondence between MsgA-PO and MsgA-RO may be determined after determining whether or not MsgA-RO is invalid.
- FIG. 7 is a diagram showing a resource allocation example (7) of the two-step random access procedure according to the embodiment of the present invention. If there is a portion where MsgA-RO and MsgA-PO overlap in the time domain, the terminal 20 may invalidate one of them.
- the terminal 20 may give priority to MsgA-RO and invalidate Msg-PO.
- the terminal 20 may give priority to the one arranged first in the time domain and invalidate the other.
- the other condition may be, for example, a condition in which FR2 (Frequency Range 2) is used. Further, the other condition may be, for example, a condition in which analog beamforming is used. Further, the other condition may be, for example, a condition in which MsgA-RO and MsgA-PO overlapping in the time domain do not have a corresponding relationship, or MsgA overlapping in the time domain with the above other conditions.
- -A condition may be added in which RO and MsgA-PO do not have a corresponding relationship.
- the terminal 20 may invalidate either one.
- MsgA-PO For MsgA-PO, if the downlink or SSB partially or completely overlaps in the time domain, the MsgA-PO may be invalidated. Further, for MsgA-PO, if a certain period following the downlink or SSB overlaps in part or all in the time domain, the MsgA-PO may be invalidated. When MsgA-PO is invalidated, the MsgA-PO may be excluded from the target MsgA-PO when determining the correspondence between MsgA-RO and MsgA-PO.
- the specifications may specify the resource allocation method and the method of defining the correspondence so that it is guaranteed that MsgA-RO and MsgA-PO do not overlap in the time domain.
- it may be only between MsgA-RO and MsgA-PO that have a correspondence relationship that guarantees that MsgA-RO and MsgA-PO do not overlap in the time domain, or that there is a correspondence relationship.
- MsgA-RO and MsgA-PO or both.
- MsgA-RO and MsgA-PO arranged periodically the correspondence between MsgA-RO and MsgA-PO is determined within a certain period, that is, with MsgA-RO within a certain period that is periodically repeated. Only MsgA-PO may have a corresponding relationship. The correspondence between MsgA-RO and MsgA-PO may not be determined over different periods in a period that is periodically repeated.
- the terminal 20 invalidates MsgA-PO having a corresponding relationship with the MsgA-RO and efficiently uses MsgA-PO having a corresponding relationship with the used MsgA-RO. Can be well identified.
- MsgA-RO becomes invalid
- the terminal 20 can efficiently identify MsgA-PO having a corresponding relationship with other MsgA-RO by excluding the MsgA-RO.
- MsgA-RO becomes invalid, the terminal 20 can invalidate the MsgA-PRACH slot including the MsgA-RO so that the MsgA-PUSCH slot due to the time offset is not specified from the MsgA-PRACH slot.
- the resources used for the two-step random access procedure can be determined.
- the base station 10 and the terminal 20 include a function of carrying out the above-described embodiment.
- the base station 10 and the terminal 20 may each have only a part of the functions in the embodiment.
- FIG. 8 is a diagram showing an example of the functional configuration of the base station 10 according to the embodiment of the present invention.
- the base station 10 includes a transmission unit 110, a reception unit 120, a setting unit 130, and a control unit 140.
- the functional configuration shown in FIG. 8 is only an example. Any function classification and name of the functional unit may be used as long as the operation according to the embodiment of the present invention can be executed.
- the transmission unit 110 includes a function of generating a signal to be transmitted to the terminal 20 side and transmitting the signal wirelessly. Further, the transmission unit 110 transmits a message between network nodes to another network node.
- the receiving unit 120 includes a function of receiving various signals transmitted from the terminal 20 and acquiring information of, for example, a higher layer from the received signals. Further, the transmission unit 110 has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL / UL control signals and the like to the terminal 20. In addition, the receiving unit 120 receives a message between network nodes from another network node.
- the setting unit 130 stores preset setting information and various setting information to be transmitted to the terminal 20.
- the content of the setting information is, for example, information related to the setting of 2-step random access.
- the control unit 140 controls the two-step random access as described in the embodiment.
- the function unit related to signal transmission in the control unit 140 may be included in the transmission unit 110, and the function unit related to signal reception in the control unit 140 may be included in the reception unit 120.
- FIG. 9 is a diagram showing an example of the functional configuration of the terminal 20 according to the embodiment of the present invention.
- the terminal 20 has a transmission unit 210, a reception unit 220, a setting unit 230, and a control unit 240.
- the functional configuration shown in FIG. 9 is only an example. Any function classification and name of the functional unit may be used as long as the operation according to the embodiment of the present invention can be executed.
- the transmission unit 210 creates a transmission signal from the transmission data and wirelessly transmits the transmission signal.
- the receiving unit 220 wirelessly receives various signals and acquires a signal of a higher layer from the received signal of the physical layer. Further, the receiving unit 220 has a function of receiving NR-PSS, NR-SSS, NR-PBCH, DL / UL / SL control signals and the like transmitted from the base station 10. Further, for example, the transmission unit 210 connects the other terminal 20 to PSCCH (Physical Sidelink Control Channel), PSCH (Physical Sidelink Shared Channel), PSDCH (Physical Sidelink Discovery Channel), PSBCH (Physical Sidelink Broadcast Channel) as D2D communication. Etc., and the receiving unit 220 receives PSCCH, PSCH, PSDCH, PSBCH, etc. from the other terminal 20.
- PSCCH Physical Sidelink Control Channel
- PSCH Physical Sidelink Shared Channel
- PSDCH Physical Sidelink Discovery Channel
- PSBCH Physical Sidelink Broadcast Channel
- the setting unit 230 stores various setting information received from the base station 10 by the receiving unit 220.
- the setting unit 230 also stores preset setting information.
- the content of the setting information is, for example, the setting of 2-step random access.
- the control unit 240 controls the two-step random access as described in the embodiment.
- the function unit related to signal transmission in the control unit 240 may be included in the transmission unit 210, and the function unit related to signal reception in the control unit 240 may be included in the reception unit 220.
- each functional block may be realized by using one device that is physically or logically connected, or directly or indirectly (for example, by two or more devices that are physically or logically separated). , Wired, wireless, etc.) and may be realized using these plurality of devices.
- the functional block may be realized by combining the software with the one device or the plurality of devices.
- Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and assumption.
- broadcasting notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but only these. I can't.
- a functional block that functions transmission is called a transmitting unit (transmitting unit) or a transmitter (transmitter).
- transmitting unit transmitting unit
- transmitter transmitter
- the base station 10, the terminal 20, and the like in one embodiment of the present disclosure may function as a computer that processes the wireless communication method of the present disclosure.
- FIG. 10 is a diagram showing an example of the hardware configuration of the base station 10 and the terminal 20 according to the embodiment of the present disclosure.
- the above-mentioned base station 10 and terminal 20 are physically configured as a computer device including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. May be good.
- the word “device” can be read as a circuit, device, unit, etc.
- the hardware configuration of the base station 10 and the terminal 20 may be configured to include one or more of the devices shown in the figure, or may be configured not to include some of the devices.
- the processor 1001 For each function of the base station 10 and the terminal 20, the processor 1001 performs an operation by loading predetermined software (program) on the hardware such as the processor 1001 and the storage device 1002, and controls the communication by the communication device 1004. It is realized by controlling at least one of reading and writing of data in the storage device 1002 and the auxiliary storage device 1003.
- Processor 1001 operates, for example, an operating system to control the entire computer.
- the processor 1001 may be composed of a central processing unit (CPU: Central Processing Unit) including an interface with a peripheral device, a control device, an arithmetic unit, a register, and the like.
- CPU Central Processing Unit
- control unit 140, control unit 240, and the like may be realized by the processor 1001.
- the processor 1001 reads a program (program code), a software module, data, or the like from at least one of the auxiliary storage device 1003 and the communication device 1004 into the storage device 1002, and executes various processes according to these.
- a program program that causes a computer to execute at least a part of the operations described in the above-described embodiment is used.
- the control unit 140 of the base station 10 shown in FIG. 8 may be realized by a control program stored in the storage device 1002 and operated by the processor 1001.
- the control unit 240 of the terminal 20 shown in FIG. 9 may be realized by a control program stored in the storage device 1002 and operated by the processor 1001.
- Processor 1001 may be implemented by one or more chips.
- the program may be transmitted from the network via a telecommunication line.
- the storage device 1002 is a computer-readable recording medium, and is, for example, by at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), and the like. It may be configured.
- the storage device 1002 may be referred to as a register, a cache, a main memory (main storage device), or the like.
- the storage device 1002 can store a program (program code), a software module, or the like that can be executed to implement the communication method according to the embodiment of the present disclosure.
- the auxiliary storage device 1003 is a computer-readable recording medium, and is, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, an optical magnetic disk (for example, a compact disk, a digital versatile disk, Blu).
- -It may be composed of at least one of a ray® disk), a smart card, a flash memory (eg, a card, a stick, a key drive), a floppy® disk, a magnetic strip, and the like.
- the storage medium described above may be, for example, a database, server or other suitable medium containing at least one of the storage device 1002 and the auxiliary storage device 1003.
- the communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like.
- the communication device 1004 includes, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, and the like in order to realize at least one of frequency division duplex (FDD: Frequency Division Duplex) and time division duplex (TDD: Time Division Duplex). It may be composed of.
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- the transmission / reception unit may be physically or logically separated from each other in the transmission unit and the reception unit.
- the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives an input from the outside.
- the output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that outputs to the outside.
- the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
- each device such as the processor 1001 and the storage device 1002 is connected by a bus 1007 for communicating information.
- the bus 1007 may be configured by using a single bus, or may be configured by using a different bus for each device.
- the base station 10 and the terminal 20 are hardware such as a microprocessor, a digital signal processor (DSP: Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). It may be configured to include, and a part or all of each functional block may be realized by the hardware. For example, processor 1001 may be implemented using at least one of these hardware.
- DSP Digital Signal Processor
- ASIC Application Specific Integrated Circuit
- PLD Programmable Logic Device
- FPGA Field Programmable Gate Array
- the first transmission opportunity for transmitting the message used in the two-step random access procedure on the physical random access channel and the message on the physical uplink sharing channel has a control unit that identifies a second transmission opportunity to be transmitted, and a transmission unit that transmits the message using the first transmission opportunity and the second transmission opportunity. If the first transmission opportunity becomes invalid, a terminal is provided that modifies the method of identifying the second transmission opportunity.
- the terminal 20 invalidates MsgA-PO having a correspondence relationship with the MsgA-RO, and efficiently uses MsgA-PO having a correspondence relationship with the used MsgA-RO. Can be identified.
- the terminal 20 can efficiently identify MsgA-PO having a corresponding relationship with other MsgA-RO by excluding the MsgA-RO.
- the terminal 20 can invalidate the MsgA-PRACH slot including the MsgA-RO so that the MsgA-PUSCH slot due to the time offset is not specified from the MsgA-PRACH slot. That is, in the wireless communication system, the resources used for the two-step random access procedure can be determined.
- the control unit may invalidate the second transmission opportunity when the first transmission opportunity becomes invalid.
- the terminal 20 invalidates MsgA-PO having a correspondence relationship with the MsgA-RO, and efficiently identifies MsgA-PO having a correspondence relationship with the MsgA-RO to be used. can do.
- the control unit may exclude the first transmission opportunity from the target of associating the second transmission opportunity.
- the terminal 20 can efficiently identify MsgA-PO having a corresponding relationship with other MsgA-RO by excluding the MsgA-RO.
- the second transmission opportunity contained in the slot may be invalidated.
- the control unit may invalidate either of the first transmission opportunity and the second transmission opportunity when the first transmission opportunity and the second transmission opportunity partially or completely overlap in the time domain.
- the terminal 20 can efficiently identify the MsgA-PO having a correspondence relationship with the MsgA-RO to be used by invalidating either the MsgA-RO or the MsgA-PO that overlaps in the time domain.
- a first transmission opportunity for transmitting the message used in the two-step random access procedure on the physical random access channel and a second transmission opportunity for transmitting the message on the physical uplink shared channel.
- the terminal executes a control procedure for identifying a transmission opportunity and a transmission procedure for transmitting the message using the first transmission opportunity and the second transmission opportunity, and the control procedure is the first transmission procedure. If the transmission opportunity becomes invalid, a communication method is provided that includes a procedure for modifying the method of identifying the second transmission opportunity.
- the terminal 20 invalidates MsgA-PO having a correspondence relationship with the MsgA-RO, and efficiently uses MsgA-PO having a correspondence relationship with the used MsgA-RO. Can be identified.
- the terminal 20 can efficiently identify MsgA-PO having a corresponding relationship with other MsgA-RO by excluding the MsgA-RO.
- the terminal 20 can invalidate the MsgA-PRACH slot including the MsgA-RO so that the MsgA-PUSCH slot due to the time offset is not specified from the MsgA-PRACH slot. That is, in the wireless communication system, the resources used for the two-step random access procedure can be determined.
- the boundary of the functional unit or the processing unit in the functional block diagram does not always correspond to the boundary of the physical component.
- the operation of the plurality of functional units may be physically performed by one component, or the operation of one functional unit may be physically performed by a plurality of components.
- the processing order may be changed as long as there is no contradiction.
- the base station 10 and the terminal 20 have been described with reference to functional block diagrams, but such devices may be implemented in hardware, software, or a combination thereof.
- the software operated by the processor of the base station 10 according to the embodiment of the present invention and the software operated by the processor of the terminal 20 according to the embodiment of the present invention are random access memory (RAM), flash memory, and read-only memory, respectively. It may be stored in (ROM), EPROM, EEPROM, registers, hard disk (HDD), removable disk, CD-ROM, database, server or any other suitable storage medium.
- information notification includes physical layer signaling (for example, DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (for example, RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, etc. Broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof may be used.
- RRC signaling may be referred to as an RRC message, for example, RRC. It may be a connection setup (RRCConnectionSetup) message, an RRC connection reconfiguration (RRCConnectionReconfiguration) message, or the like.
- Each aspect / embodiment described in the present disclosure includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), and 5G (5th generation mobile communication).
- system FRA (Future Radio Access), NR (new Radio), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)) )), LTE 802.16 (WiMAX®), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth®, and other systems that utilize suitable systems and have been extended based on these. It may be applied to at least one of the next generation systems. Further, a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G).
- the specific operation performed by the base station 10 in the present specification may be performed by its upper node.
- various operations performed for communication with the terminal 20 are performed by the base station 10 and other network nodes other than the base station 10 (for example, it is clear that it can be done by at least one of (but not limited to, MME, S-GW, etc.).
- the other network node may be a combination of a plurality of other network nodes (for example, MME and S-GW). ..
- the information, signals, etc. described in the present disclosure can be output from the upper layer (or lower layer) to the lower layer (or upper layer). Input / output may be performed via a plurality of network nodes.
- the input / output information and the like may be stored in a specific location (for example, memory) or may be managed using a management table. Input / output information and the like can be overwritten, updated, or added. The output information and the like may be deleted. The input information or the like may be transmitted to another device.
- the determination in the present disclosure may be made by a value represented by 1 bit (0 or 1), by a true / false value (Boolean: true or false), or by comparing numerical values (for example). , Comparison with a predetermined value).
- Software whether referred to as software, firmware, middleware, microcode, hardware description language, or by any other name, is an instruction, instruction set, code, code segment, program code, program, subprogram, software module.
- Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, features, etc. should be broadly interpreted.
- software, instructions, information, etc. may be transmitted and received via a transmission medium.
- a transmission medium For example, a website that uses at least one of wired technology (coaxial cable, fiber optic cable, twist pair, digital subscriber line (DSL: Digital Subscriber Line), etc.) and wireless technology (infrared, microwave, etc.) When transmitted from a server, or other remote source, at least one of these wired and wireless technologies is included within the definition of transmission medium.
- the information, signals, etc. described in this disclosure may be represented using any of a variety of different techniques.
- data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may be represented by a combination of.
- a channel and a symbol may be a signal (signaling).
- the signal may be a message.
- the component carrier CC: Component Carrier
- CC Component Carrier
- system and “network” used in this disclosure are used interchangeably.
- the information, parameters, etc. described in the present disclosure may be expressed using absolute values, relative values from predetermined values, or using other corresponding information. It may be represented.
- the radio resource may be one indicated by an index.
- base station Base Station
- radio base station base station
- base station device fixed station
- NodeB NodeB
- eNodeB eNodeB
- GNB gNodeB
- access point “ transmission point ”,“ reception point ”,“ transmission / reception point ”,“ cell ”,“ sector ”
- Terms such as “cell group,” “carrier,” and “component carrier” can be used interchangeably.
- Base stations are sometimes referred to by terms such as macrocells, small cells, femtocells, and picocells.
- the base station can accommodate one or more (for example, three) cells.
- a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (RRH:)).
- Communication services can also be provided by Remote Radio Head).
- the term "cell” or “sector” is a part or all of the coverage area of at least one of the base station and the base station subsystem that provides the communication service in this coverage. Point to.
- MS Mobile Station
- UE User Equipment
- Mobile stations can be subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless, depending on the trader. It may also be referred to as a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
- At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, or the like. At least one of the base station and the mobile station may be a device mounted on the mobile body, the mobile body itself, or the like.
- the moving body may be a vehicle (for example, a car, an airplane, etc.), an unmanned moving body (for example, a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned type). ) May be.
- at least one of the base station and the mobile station includes a device that does not necessarily move during communication operation.
- at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.
- IoT Internet of Things
- the base station in the present disclosure may be read by the user terminal.
- the communication between the base station and the user terminal is replaced with the communication between a plurality of terminals 20 (for example, it may be called D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.).
- D2D Device-to-Device
- V2X Vehicle-to-Everything
- Each aspect / embodiment of the present disclosure may be applied to the configuration.
- the terminal 20 may have the function of the base station 10 described above.
- words such as "up” and “down” may be read as words corresponding to inter-terminal communication (for example, "side”).
- an uplink channel, a downlink channel, and the like may be read as a side channel.
- the user terminal in the present disclosure may be read as a base station.
- the base station may have the functions of the above-mentioned user terminal.
- determining and “determining” used in this disclosure may include a wide variety of actions.
- “Judgment” and “decision” are, for example, judgment (judging), calculation (calculating), calculation (computing), processing (processing), derivation (deriving), investigation (investigating), search (looking up, search, inquiry). (For example, searching in a table, database or another data structure), ascertaining may be regarded as “judgment” or “decision”.
- judgment and “decision” are receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access.
- Accessing (for example, accessing data in memory) may be regarded as "judgment” or “decision”.
- judgment and “decision” mean that the things such as solving, selecting, choosing, establishing, and comparing are regarded as “judgment” and “decision”. Can include. That is, “judgment” and “decision” may include considering some action as “judgment” and “decision”. Further, “judgment (decision)” may be read as “assuming”, “expecting”, “considering” and the like.
- connection means any direct or indirect connection or connection between two or more elements, and each other. It can include the presence of one or more intermediate elements between two “connected” or “combined” elements.
- the connection or connection between the elements may be physical, logical, or a combination thereof.
- connection may be read as "access”.
- the two elements use at least one of one or more wires, cables and printed electrical connections, and, as some non-limiting and non-comprehensive examples, the radio frequency domain. Can be considered to be “connected” or “coupled” to each other using electromagnetic energies having wavelengths in the microwave and light (both visible and invisible) regions.
- the reference signal can also be abbreviated as RS (Reference Signal), and may be called a pilot (Pilot) depending on the applicable standard.
- RS Reference Signal
- Pilot Pilot
- references to elements using designations such as “first”, “second”, etc. as used in this disclosure does not generally limit the quantity or order of those elements. These designations can be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, references to the first and second elements do not mean that only two elements can be adopted, or that the first element must somehow precede the second element.
- each of the above devices may be replaced with a "part”, a “circuit”, a “device”, or the like.
- the wireless frame may be composed of one or more frames in the time domain. Each one or more frames in the time domain may be referred to as a subframe. Subframes may further consist of one or more slots in the time domain.
- the subframe may have a fixed time length (eg, 1 ms) that does not depend on numerology.
- the numerology may be a communication parameter that applies to at least one of the transmission and reception of a signal or channel.
- Numerology includes, for example, subcarrier spacing (SCS: SubCarrier Spacing), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI: Transmission Time Interval), number of symbols per TTI, wireless frame configuration, and transmitter / receiver.
- SCS subcarrier spacing
- TTI Transmission Time Interval
- At least one of a specific filtering process performed in the frequency domain, a specific windowing process performed by the transmitter / receiver in the time domain, and the like may be indicated.
- the slot may be composed of one or more symbols in the time domain (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.). Slots may be in time units based on numerology.
- OFDM Orthogonal Frequency Division Multiplexing
- SC-FDMA Single Carrier Frequency Division Multiple Access
- the slot may include a plurality of mini slots. Each minislot may consist of one or more symbols in the time domain.
- the mini-slot may also be referred to as a sub-slot.
- a minislot may consist of a smaller number of symbols than the slot.
- PDSCH (or PUSCH) transmitted in time units larger than the minislot may be referred to as PDSCH (or PUSCH) mapping type A.
- the PDSCH (or PUSCH) transmitted using the minislot may be referred to as PDSCH (or PUSCH) mapping type B.
- the wireless frame, subframe, slot, minislot and symbol all represent the time unit when transmitting a signal.
- the radio frame, subframe, slot, minislot and symbol may have different names corresponding to each.
- one subframe may be called a transmission time interval (TTI), a plurality of consecutive subframes may be called TTI, and one slot or one minislot may be called TTI.
- TTI transmission time interval
- the unit representing TTI may be called a slot, a mini slot, or the like instead of a subframe.
- TTI refers to, for example, the minimum time unit of scheduling in wireless communication.
- the base station schedules each terminal 20 to allocate radio resources (frequency bandwidth that can be used in each terminal 20, transmission power, etc.) in TTI units.
- the definition of TTI is not limited to this.
- the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling or link adaptation.
- the time interval for example, the number of symbols
- the transport block, code block, code word, etc. may be shorter than the TTI.
- one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
- a TTI having a time length of 1 ms may be referred to as a normal TTI (TTI in LTE Rel. 8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, or the like.
- TTIs shorter than normal TTIs may be referred to as shortened TTIs, short TTIs, partial TTIs (partial or fractional TTIs), shortened subframes, short subframes, minislots, subslots, slots, and the like.
- the long TTI (for example, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms, and the short TTI (for example, shortened TTI, etc.) is less than the TTI length of the long TTI and 1 ms. It may be read as a TTI having the above TTI length.
- the resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers in the frequency domain.
- the number of subcarriers contained in the RB may be the same regardless of the numerology, and may be, for example, 12.
- the number of subcarriers contained in the RB may be determined based on numerology.
- the time domain of RB may include one or more symbols, and may have a length of 1 slot, 1 mini slot, 1 subframe, or 1 TTI.
- Each 1TTI, 1 subframe, etc. may be composed of one or a plurality of resource blocks.
- One or more RBs include a physical resource block (PRB: Physical RB), a sub-carrier group (SCG: Sub-Carrier Group), a resource element group (REG: Resource Element Group), a PRB pair, an RB pair, and the like. May be called.
- PRB Physical resource block
- SCG Sub-Carrier Group
- REG Resource Element Group
- PRB pair an RB pair, and the like. May be called.
- the resource block may be composed of one or a plurality of resource elements (RE: Resource Element).
- RE Resource Element
- 1RE may be a radio resource area of 1 subcarrier and 1 symbol.
- Bandwidth part (which may also be called partial bandwidth) may represent a subset of consecutive common resource blocks (RBs) for a certain neurology in a carrier.
- the common RB may be specified by the index of the RB with respect to the common reference point of the carrier.
- PRBs may be defined in a BWP and numbered within that BWP.
- the BWP may include a BWP for UL (UL BWP) and a BWP for DL (DL BWP).
- UL BWP UL BWP
- DL BWP DL BWP
- One or more BWPs may be set in one carrier for the UE.
- At least one of the configured BWPs may be active, and the UE may not expect to send or receive a given signal / channel outside the active BWP.
- “cell”, “carrier” and the like in this disclosure may be read as “BWP”.
- the above-mentioned structures such as wireless frames, subframes, slots, mini slots and symbols are merely examples.
- the number of subframes contained in a wireless frame the number of slots per subframe or wireless frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, included in the RB.
- the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.
- the term "A and B are different” may mean “A and B are different from each other”.
- the term may mean that "A and B are different from C”.
- Terms such as “separate” and “combined” may be interpreted in the same way as “different”.
- the notification of predetermined information (for example, the notification of "being X") is not limited to the explicit one, but is performed implicitly (for example, the notification of the predetermined information is not performed). May be good.
- MsgA is an example of a message used in the 2-step random access procedure.
- PRACH is an example of a physical random access channel.
- PUSCH is an example of a physical uplink shared channel.
- MsgA-RO is an example of a first transmission opportunity.
- MsgA-PO is an example of a second transmission opportunity.
- Base station 110 Transmission unit 120 Reception unit 130 Setting unit 140 Control unit 20 Terminal 210 Transmission unit 220 Reception unit 230 Setting unit 240 Control unit 1001 Processor 1002 Storage device 1003 Auxiliary storage device 1004 Communication device 1005 Input device 1006 Output device
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
MsgAのランダムアクセスプリアンブルを除くデータ部分を送信するPUSCH(Physical Uplink Shared Channel)の送信機会とが関連付けられる。
次に、これまでに説明した処理及び動作を実行する基地局10及び端末20の機能構成例を説明する。基地局10及び端末20は上述した実施例を実施する機能を含む。ただし、基地局10及び端末20はそれぞれ、実施例の中の一部の機能のみを備えることとしてもよい。
図8は、本発明の実施の形態における基地局10の機能構成の一例を示す図である。図8に示されるように、基地局10は、送信部110と、受信部120と、設定部130と、制御部140とを有する。図8に示される機能構成は一例に過ぎない。本発明の実施の形態に係る動作を実行できるのであれば、機能区分及び機能部の名称はどのようなものでもよい。
図9は、本発明の実施の形態における端末20の機能構成の一例を示す図である。図9に示されるように、端末20は、送信部210と、受信部220と、設定部230と、制御部240とを有する。図9に示される機能構成は一例に過ぎない。本発明の実施の形態に係る動作を実行できるのであれば、機能区分及び機能部の名称はどのようなものでもよい。
上記実施形態の説明に用いたブロック図(図8及び図9)は、機能単位のブロックを示している。これらの機能ブロック(構成部)は、ハードウェア及びソフトウェアの少なくとも一方の任意の組み合わせによって実現される。また、各機能ブロックの実現方法は特に限定されない。すなわち、各機能ブロックは、物理的又は論理的に結合した1つの装置を用いて実現されてもよいし、物理的又は論理的に分離した2つ以上の装置を直接的又は間接的に(例えば、有線、無線などを用いて)接続し、これら複数の装置を用いて実現されてもよい。機能ブロックは、上記1つの装置又は上記複数の装置にソフトウェアを組み合わせて実現されてもよい。
以上、説明したように、本発明の実施の形態によれば、2ステップランダムアクセス手順に使用するメッセージを物理ランダムアクセスチャネルにおいて送信する第1の送信機会と、前記メッセージを物理上りリンク共有チャネルにおいて送信する第2の送信機会とを特定する制御部と、前記第1の送信機会及び前記第2の送信機会を使用して前記メッセージを送信する送信部とを有し、前記制御部は、前記第1の送信機会が無効となる場合、前記第2の送信機会を特定する方法を変更する端末が提供される。
以上、本発明の実施の形態を説明してきたが、開示される発明はそのような実施形態に限定されず、当業者は様々な変形例、修正例、代替例、置換例等を理解するであろう。発明の理解を促すため具体的な数値例を用いて説明がなされたが、特に断りのない限り、それらの数値は単なる一例に過ぎず適切な如何なる値が使用されてもよい。上記の説明における項目の区分けは本発明に本質的ではなく、2以上の項目に記載された事項が必要に応じて組み合わせて使用されてよいし、ある項目に記載された事項が、別の項目に記載された事項に(矛盾しない限り)適用されてよい。機能ブロック図における機能部又は処理部の境界は必ずしも物理的な部品の境界に対応するとは限らない。複数の機能部の動作が物理的には1つの部品で行われてもよいし、あるいは1つの機能部の動作が物理的には複数の部品により行われてもよい。実施の形態で述べた処理手順については、矛盾の無い限り処理の順序を入れ替えてもよい。処理説明の便宜上、基地局10及び端末20は機能的なブロック図を用いて説明されたが、そのような装置はハードウェアで、ソフトウェアで又はそれらの組み合わせで実現されてもよい。本発明の実施の形態に従って基地局10が有するプロセッサにより動作するソフトウェア及び本発明の実施の形態に従って端末20が有するプロセッサにより動作するソフトウェアはそれぞれ、ランダムアクセスメモリ(RAM)、フラッシュメモリ、読み取り専用メモリ(ROM)、EPROM、EEPROM、レジスタ、ハードディスク(HDD)、リムーバブルディスク、CD-ROM、データベース、サーバその他の適切な如何なる記憶媒体に保存されてもよい。
110 送信部
120 受信部
130 設定部
140 制御部
20 端末
210 送信部
220 受信部
230 設定部
240 制御部
1001 プロセッサ
1002 記憶装置
1003 補助記憶装置
1004 通信装置
1005 入力装置
1006 出力装置
Claims (6)
- 2ステップランダムアクセス手順に使用するメッセージを物理ランダムアクセスチャネルにおいて送信する第1の送信機会と、前記メッセージを物理上りリンク共有チャネルにおいて送信する第2の送信機会とを特定する制御部と、
前記第1の送信機会及び前記第2の送信機会を使用して前記メッセージを送信する送信部とを有し、
前記制御部は、前記第1の送信機会が無効となる場合、前記第2の送信機会を特定する方法を変更する端末。 - 前記制御部は、前記第1の送信機会が無効となる場合、前記第2の送信機会を無効とする請求項1記載の端末。
- 前記制御部は、前記第1の送信機会が無効となる場合、前記第1の送信機会は、前記第2の送信機会を関連付ける対象から除外される請求項1記載の端末。
- 前記制御部は、前記第1の送信機会が無効となる場合、前記第1の送信機会及び有効である送信機会を含む物理ランダムアクセスチャネルのスロットから時間オフセットで指定される物理上りリンク共有チャネルのスロットに含まれる前記第2の送信機会を無効とする請求項2記載の端末。
- 前記制御部は、前記第1の送信機会と前記第2の送信機会とが、時間領域で一部又は全部重複する場合、いずれかを無効とする請求項1記載の端末。
- 2ステップランダムアクセス手順に使用するメッセージを物理ランダムアクセスチャネルにおいて送信する第1の送信機会と、前記メッセージを物理上りリンク共有チャネルにおいて送信する第2の送信機会とを特定する制御手順と、
前記第1の送信機会及び前記第2の送信機会を使用して前記メッセージを送信する送信手順とを端末が実行し、
前記制御手順は、前記第1の送信機会が無効となる場合、前記第2の送信機会を特定する方法を変更する手順を含む通信方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/754,572 US20230094704A1 (en) | 2019-10-11 | 2019-10-11 | Terminal and communication method |
JP2021551104A JPWO2021070397A1 (ja) | 2019-10-11 | 2019-10-11 | |
PCT/JP2019/040341 WO2021070397A1 (ja) | 2019-10-11 | 2019-10-11 | 端末及び通信方法 |
CN201980101104.2A CN114557071A (zh) | 2019-10-11 | 2019-10-11 | 终端和通信方法 |
EP19948753.9A EP4044718A4 (en) | 2019-10-11 | 2019-10-11 | TERMINAL AND COMMUNICATION METHOD |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2019/040341 WO2021070397A1 (ja) | 2019-10-11 | 2019-10-11 | 端末及び通信方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021070397A1 true WO2021070397A1 (ja) | 2021-04-15 |
Family
ID=75437069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2019/040341 WO2021070397A1 (ja) | 2019-10-11 | 2019-10-11 | 端末及び通信方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230094704A1 (ja) |
EP (1) | EP4044718A4 (ja) |
JP (1) | JPWO2021070397A1 (ja) |
CN (1) | CN114557071A (ja) |
WO (1) | WO2021070397A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023201565A1 (en) * | 2022-04-20 | 2023-10-26 | Qualcomm Incorporated | Physical random access channel transmission |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA3090242A1 (en) * | 2019-08-14 | 2021-02-14 | Comcast Cable Communications, Llc | Access procedure resource configuration |
-
2019
- 2019-10-11 WO PCT/JP2019/040341 patent/WO2021070397A1/ja unknown
- 2019-10-11 JP JP2021551104A patent/JPWO2021070397A1/ja active Pending
- 2019-10-11 CN CN201980101104.2A patent/CN114557071A/zh active Pending
- 2019-10-11 EP EP19948753.9A patent/EP4044718A4/en active Pending
- 2019-10-11 US US17/754,572 patent/US20230094704A1/en active Pending
Non-Patent Citations (8)
Title |
---|
3GPP TR 38.321 |
3GPP TS 38.300 |
FUJITSU: "Discussion on channel structure for 2- step RACH", 3GPP TSG RAN WG1 #98B, R1-1910126, 4 October 2019 (2019-10-04), pages 1 - 4, XP051788933 * |
NTT DOCOMO, INC.: "Discussion on Channel Structure for Two-Step RACH", 3GPP TSG RAN WG1 #98B, R1-1911155, 5 October 2019 (2019-10-05), pages 1 - 4, XP051789928 * |
NTT DOCOMO, INC.: "Discussion on Channel Structure for Two-Step RACH", 3GPP TSG RAN WG1 #99, R1-1912869, 8 November 2019 (2019-11-08), pages 1 - 6, XP051820217 * |
See also references of EP4044718A4 |
ZTE ET AL.: "Remaining issues of msgA channel structure", 3GPP TSG RAN WG1 #98B, R1-1910002, 4 October 2019 (2019-10-04), pages 1 - 26, XP051788809 * |
ZTE: "FL Summary #2 of Channel Structure for Two- step RACH", 3GPP TSG RAN WG1 #98, R1-1909860, 3 September 2019 (2019-09-03), pages 1 - 38, XP051766452 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023201565A1 (en) * | 2022-04-20 | 2023-10-26 | Qualcomm Incorporated | Physical random access channel transmission |
Also Published As
Publication number | Publication date |
---|---|
CN114557071A (zh) | 2022-05-27 |
EP4044718A4 (en) | 2023-05-24 |
JPWO2021070397A1 (ja) | 2021-04-15 |
US20230094704A1 (en) | 2023-03-30 |
EP4044718A1 (en) | 2022-08-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPWO2020090097A1 (ja) | ユーザ装置及び基地局装置 | |
WO2021044603A1 (ja) | 端末及び通信方法 | |
WO2021033246A1 (ja) | 端末 | |
WO2021199415A1 (ja) | 端末及び通信方法 | |
WO2021149110A1 (ja) | 端末及び通信方法 | |
WO2021149246A1 (ja) | 端末、基地局及び通信方法 | |
JP7073529B2 (ja) | 端末、基地局及び通信方法 | |
WO2021044602A1 (ja) | 端末及び通信方法 | |
WO2021172338A1 (ja) | 端末及び通信方法 | |
WO2021070397A1 (ja) | 端末及び通信方法 | |
WO2021070396A1 (ja) | 端末及び通信方法 | |
WO2021161481A1 (ja) | 端末 | |
WO2020246185A1 (ja) | 端末及び基地局 | |
JP7343591B2 (ja) | 端末及び通信方法 | |
WO2021157093A1 (ja) | 端末及び通信方法 | |
WO2021049014A1 (ja) | 端末及び通信方法 | |
WO2020194638A1 (ja) | ユーザ装置及び基地局装置 | |
WO2020194746A1 (ja) | ユーザ装置及び基地局装置 | |
WO2020157986A1 (ja) | ユーザ装置及び基地局装置 | |
JPWO2020174947A1 (ja) | 端末及び通信方法 | |
JPWO2020170445A1 (ja) | ユーザ装置及び基地局装置 | |
JP7389132B2 (ja) | 端末、通信システム及び通信方法 | |
WO2021210184A1 (ja) | 端末及び通信方法 | |
WO2021214894A1 (ja) | 端末及び通信方法 | |
WO2020230623A1 (ja) | ユーザ装置及び基地局装置 |
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: 19948753 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2021551104 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112022006444 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 2019948753 Country of ref document: EP Effective date: 20220511 |
|
ENP | Entry into the national phase |
Ref document number: 112022006444 Country of ref document: BR Kind code of ref document: A2 Effective date: 20220404 |