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WO2024168869A1 - Procédé de communication sans fil et dispositifs associés - Google Patents

Procédé de communication sans fil et dispositifs associés Download PDF

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Publication number
WO2024168869A1
WO2024168869A1 PCT/CN2023/076928 CN2023076928W WO2024168869A1 WO 2024168869 A1 WO2024168869 A1 WO 2024168869A1 CN 2023076928 W CN2023076928 W CN 2023076928W WO 2024168869 A1 WO2024168869 A1 WO 2024168869A1
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WO
WIPO (PCT)
Prior art keywords
tos
configuration
uci
harq
tbs
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
Application number
PCT/CN2023/076928
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English (en)
Inventor
Yiwei DENG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen TCL New Technology Co Ltd
Original Assignee
Shenzhen TCL New Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen TCL New Technology Co Ltd filed Critical Shenzhen TCL New Technology Co Ltd
Priority to EP23922006.4A priority Critical patent/EP4666788A1/fr
Priority to CN202380093688.XA priority patent/CN120677811A/zh
Priority to PCT/CN2023/076928 priority patent/WO2024168869A1/fr
Publication of WO2024168869A1 publication Critical patent/WO2024168869A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/115—Grant-free or autonomous transmission
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • 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
    • H04L1/1887—Scheduling and prioritising arrangements
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present application relates to wireless communication technologies, and more particularly, to a wireless communication method, and related devices such as a user equipment (UE) and a base station (BS) (e.g., a gNB) .
  • UE user equipment
  • BS base station
  • gNB gNode B
  • Wireless communication systems such as the third-generation (3G) of mobile telephone standards and technology are well known.
  • 3G standards and technology have been developed by the Third Generation Partnership Project (3GPP) .
  • the 3rd generation of wireless communications has generally been developed to support macro-cell mobile phone communications.
  • Communication systems and networks have developed towards being a broadband and mobile system.
  • UE user equipment
  • RAN radio access network
  • the RAN includes a set of base stations (BSs) which provide wireless links to the UEs located in cells covered by the base stations, and an interface to a core network (CN) which provides overall network control.
  • BSs base stations
  • CN core network
  • the RAN and CN each conducts respective functions in relation to the overall network.
  • LTE Long-Term Evolution
  • E-UTRAN Evolved Universal Mobile Telecommunication System Territorial Radio Access Network
  • 5G or NR new radio
  • gNodeB next generation Node B
  • the 5G New Radio (NR) standard will support a multitude of different services each with very different requirements. These services include Enhanced Mobile Broadband (eMBB) for high data rate transmission, Ultra-Reliable Low Latency Communication (URLLC) for devices requiring low latency and high link reliability and Massive Machine-Type Communication (mMTC) to support a large number of low-power devices for a long life-time requiring highly energy efficient communication.
  • eMBB Enhanced Mobile Broadband
  • URLLC Ultra-Reliable Low Latency Communication
  • mMTC Massive Machine-Type Communication
  • XR EXtended Reality
  • Cloud Gaming are some of the most important 5G media applications under consideration in the industry.
  • XR is an umbrella term for different types of realities and refers to all real-and-virtual combined environments and human-machine interactions generated by computer technology and wearables. It includes representative forms such as Augmented Reality (AR) , Mixed Reality (MR) and Virtual Reality (VR) and the areas interpolated among them.
  • AR Augmented Reality
  • MR Mixed Reality
  • VR Virtual Reality
  • SID Study Item Description
  • the transmission date rate could be up to 60Mbps and above with limited latency, around 10 ⁇ 30ms.
  • fps 60 frames per second
  • DL Downlink
  • UL Uplink
  • 90 fps 90 fps as well as 120 fps can be also optionally evaluated.
  • the corresponding periodicities are 33.33ms, 16.67ms, 11.11ms and 8.33ms, respectively.
  • jitter characteristic for XR traffic arrival According to the previous 3GPP RAN1 agreements, the jitter can be modeled as truncated Gaussian distribution with varying range of [-4, 4] ms (baseline) or [-5, 5] ms (optional) .
  • - I-frames are the least compressible ones which can decode independently.
  • - P-frames can use previous frames to decompress and are more compressible than I-frames.
  • - Agreement 1 Support dynamic indication of the unused CG PUSCH occasion (s) based on Uplink Control Information (UCI) (e.g., CG-UCI or a new UCI) by the UE.
  • UCI Uplink Control Information
  • the large frame size may require more than one PUSCHs to be transmitted in each video frame period. So more than one PUSCH transmission occasions within a CG configuration is beneficial for XR to handle the issue of varying frame size.
  • - DRX support of XR frame rates corresponding to non-integer periodicities (through at least semi-static mechanisms e.g., RRC signalling) (RAN2) .
  • RRC signalling RAN2
  • BSR enhancements including at least new BS Table (s) ; (RAN2) ;
  • XR traffic assistance information for DL and UL (e.g. periodicity) ; (RAN2) ;
  • an IE of ConfiguredGrantConfig is used to configure uplink transmission without dynamic grant according to two possible schemes.
  • the actual uplink grant may either be configured via RRC (type1) or provided via the PDCCH (addressed to CS-RNTI) (type2) .
  • Multiple Configured Grant configurations may be configured in one BWP of a serving cell and the maximum number of CG configurations are 12.
  • a UE validates, for scheduling activation or scheduling release, a DL SPS assignment PDCCH or a configured UL grant Type 2 PDCCH if
  • the CRC of a corresponding DCI format is scrambled with a CS-RNTI provided by cs-RNTI or a G-CS-RNTI provided by g-cs-RNTI, and
  • the time domain resource assignment field in the DCI format indicates a row with single SLIV
  • the PDSCH-to-HARQ_feedback timing indicator field does not provide an inapplicable value from dl-DataToUL-ACK-r16.
  • validation of the DCI format is achieved if all fields for the DCI format are set correspondingly.
  • a value of the HARQ process number field in a DCI format indicates an activation for a corresponding UL grant Type 2 PUSCH or for a SPS PDSCH configuration with a same value as provided by ConfiguredGrantConfigIndex or by sps-ConfigIndex, respectively.
  • Validation of the DCI format is achieved if the RV field for the DCI format is set correspondingly.
  • a UE is provided more than one configuration for UL grant Type 2 PUSCH or for SPS PDSCH
  • a value of the HARQ process number field in a DCI format indicates a corresponding entry for scheduling release of one or more UL grant Type 2 PUSCH or SPS PDSCH configurations
  • a value of the HARQ process number field in a DCI format indicates a release for a corresponding UL grant Type 2 PUSCH or for a SPS PDSCH configuration with a same value as provided by ConfiguredGrantConfigIndex or by sps-ConfigIndex, respectively
  • Validation of the DCI format is achieved if all fields for the DCI format are set correspondingly.
  • the UE If validation is achieved, the UE considers the information in the DCI format as a valid activation or valid release of DL SPS or configured UL grant Type 2. If validation is not achieved, the UE discards all the information in the DCI format.
  • a DCI or multiple DCIs can be used to activate or deactivate one or more CG configurations.
  • repetition can be configured in a CG configuration, and two types of PUSCH transmission are defined, in which one is type A PUSCH repetition and the other is type B PUSCH repetition.
  • Type A PUSCH repetition is based on slot and with at most one repetition within a slot, and the time and frequency of each CG configuration within a slot is the same.
  • the repetition pattern is back-to-back in time domain, and more than one repetitions can be configured within a slot.
  • the objective of the present application is to provide a wireless communication method and related devices, for realizing multiple transmission occasions (TOs) within a CG configuration.
  • an embodiment of the present application provides a wireless communication method, performed by a user equipment (UE) , the method including: being configured with multiple resources or transmission occasions (TOs) within a configured grant (CG) configuration which is used for transmitting more than one transport block (TB) .
  • UE user equipment
  • TOs transmission occasions
  • CG configured grant
  • an embodiment of the present application provides a wireless communication method, performed by a base station (BS) , the method including: configuring a user equipment (UE) with multiple resources or transmission occasions (TOs) within a configured grant (CG) configuration which is used for transmitting more than one transport block (TB) .
  • BS base station
  • TOs transmission occasions
  • CG configured grant
  • an embodiment of the present application provides a user equipment (UE) , including a processor, a transceiver and a memory, wherein the processor, the transceiver and the memory communicate with each other through an internal connection path, the memory is used for storing instructions, and the processor is used for, when executing the instructions stored in the memory, executing the method of the first aspect.
  • UE user equipment
  • an embodiment of the present application provides a base station (BS) , including a processor, a transceiver and a memory, wherein the processor, the transceiver and the memory communicate with each other through an internal connection path, the memory is used for storing instructions, and the processor is used for, when executing the instructions stored in the memory, executing the method of the second aspect.
  • BS base station
  • an embodiment of the present application provides a computer readable storage medium provided for storing a computer program, which enables a computer to execute the method of any of the first and the second aspects.
  • an embodiment of the present application provides a computer program product, which includes computer program instructions enabling a computer to execute the method of any of the first and the second aspects.
  • an embodiment of the present application provides a computer program, when running on a computer, enabling the computer to execute the method of any of the first and the second aspects.
  • FIG. 1 is a schematic diagram illustrating a CG configuration with multiple TOs for a periodic XR packet.
  • FIG. 2 is a schematic diagram illustrating varying XR frame size and semi-statically configured CG resources.
  • FIG. 3 is a schematic diagram illustrating varying packet size and jitter for XR with CG.
  • FIG. 4 is a block diagram of a user equipment and a base station of wireless communication in a communication controlling system according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram illustrating radio protocol architecture within gNB and UE.
  • FIG. 6 is a schematic diagram illustrating a gNB further including a centralized unit (CU) and a plurality of distributed unit (DUs) .
  • CU centralized unit
  • DUs distributed unit
  • FIG. 7 is a flowchart of a wireless communication method according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram illustrating an example of multiple TB repetitions transmitted over multiple TOs.
  • FIG. 9 is a schematic diagram illustrating another example of multiple TB repetitions transmitted over multiple TOs.
  • FIG. 10 is a schematic diagram illustrating TB collision with other transmission.
  • FIG. 11 is a schematic diagram illustrating multiple HARQ-IDs for multiple TOs within a CG configuration.
  • FIG. 12 is a schematic diagram illustrating UCI indicating un-used TOs within a CG configuration.
  • a combination such as “at least one of A, B, or C, ” “one or more of A, B, or C, ” “at least one of A, B, and C, ” “one or more of A, B, and C, ” or “A, B, and/or C” may be A only, B only, C only, A and B, A and 30 C, B and C, or A and B and C, where any combination may contain one or more members of A, B, or C.
  • DG based, CG+DG based, SR+DG based, pre-scheduling or enhanced CG based mechanism for XR transmission have been proposed.
  • the enhanced CG can be considered as a potential method for XR transmission due to its low alignment latency and can work on DRX-off state.
  • the current CG mechanism is not suitable for XR transmission. Accordingly, a further CG enhancement is needed.
  • multiple CG occasions configured for a CG can be considered, as shown in FIG. 1.
  • the HARQ-ID of a CG is calculated based on a formula, and the HARQ process field in DCI is used for activation of a CG.
  • the multiple TOs need to transmit more than one TB.
  • the HARQ-IDs of TOs will be collided. How to determine the HARQ-IDs for all of the TOs within a CG configuration to avoid collision should be studied.
  • a set of allowed periodicities P are defined in TS 38.331.
  • the higher layer parameter cg-nrofSlots provides the number of consecutive slots allocated within a configured grant period.
  • the higher layer parameter cg-nrofPUSCH-InSlot provides the number of consecutive PUSCH allocations within a slot, where the first PUSCH allocation follows the higher layer parameter timeDomainAllocation for Type 1 PUSCH transmission or the higher layer configuration according to TS 38.321, and UL grant is received on the DCI for Type 2 PUSCH transmissions, and the remaining PUSCH allocations have the same length and PUSCH mapping type and are appended following previous allocations without any gaps.
  • the CG resource is semi-statically configured, which cannot adapt to the varying size of XR packet. As illustrated in FIG. 2, if 4 PUSCHs in one CG period are configured, there will be a waste of resources for the video frames that need less than 4 PUSCHs. If 3 PUSCHs in one CG period are configured and if the video frames are large, e.g., 4 PUSCHs are required for each video frame, then additional dynamic scheduling is needed, resulting in extra scheduling delay.
  • a signalling for indicating the un-used or additional TOs should be defined.
  • the mechanism in current 3GPP specification is not applicable, and how to define the multiplexing rules between the signalling and current UL control information should be considered.
  • this application proposes methods to enable the CG configuration to support large and varying size of XR.
  • the following solutions are provided:
  • the parameter of the number of repetitions of a CG can be reused for indicating the number of multiple TOs within a CG configuration which is used to transmit more than one TB
  • a new signalling or joint-coding with some parameters e.g., TDRA
  • some implicit ways can be used to indicate the number of TOs within the CG configuration, e.g., the number of TDRA, periodicity of CG.
  • a semi-static method can be provided to determine the HARQ-IDs, and the HARQ-IDs can be determined based on a reference HARQ-ID plus a new parameter or some information of a TO and can be directly configured.
  • Sequence based a set of values representative of un-used TOs can be configured by RRC, then the UCI is used to indicate a corresponding index (e.g. the UCI is similar to SR) , and a default value (e.g., a default offset value) is defined to determine the time location of the un-used TOs.
  • a default value e.g., a default offset value
  • Sequence based a set of values representative of un-used TOs and a corresponding value K (e.g., an offset value) are configured by RRC, and then the UCI indicates a corresponding index.
  • K e.g., an offset value
  • Non-sequence based a new UCI is carried by PUCCH, and the content of UCI includes at least one of the number of unused TOs, the value of K, or the index of unused TOs or a set of unused TOs, etc., where K is used to determine the time location of un-used TOs.
  • CG-UCI the content of UCI includes at least one of the following parameters: the number of TOs, the value of K, or the index of a TO or a set of TOs, etc., where K is used to determine the time location of un-used TOs.
  • Bitmap the size of this field is equal to the total number of TOs.
  • FIG. 4 illustrates that, in some embodiments, one or more user equipments (UEs) 10 and a base station (e.g., gNB or eNB) 20 for wireless communication in a communication network system 30 according to an embodiment of the present application are provided.
  • the communication network system 30 includes the one or more UEs 10 and the base station 20.
  • the one or more UEs 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and the transceiver 13.
  • the base station 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22 and the transceiver 23.
  • the processor 11 or 21 may be configured to implement proposed functions, procedures and/or methods described in this description.
  • Layers of radio interface protocol may be implemented in the processor 11 or 21.
  • the memory 12 or 22 is operatively coupled with the processor 11 or 21 and stores a variety of information to operate the processor 11 or 21.
  • the transceiver 13 or 23 is operatively coupled with the processor 11 or 21, and the transceiver 13 or 23 transmits and/or receives a radio signal.
  • the base station 20 and a next generation core network (5GCN) may also communicate with each other either wirelessly or in a wired way.
  • 5GCN next generation core network
  • the next generation core network is a backend serving network system and may include an Access and Mobility Management Function (AMF) , User Plane Function (UPF) , and a Session Management Function (SMF) .
  • AMF Access and Mobility Management Function
  • UPF User Plane Function
  • SMF Session Management Function
  • the user equipment 10 can include almost any consumer electronic device or appliance that can connect to a radio access network and a core network for the releases of 3GPP and further, such as, but not limited to NR networks.
  • the processor 11 or 21 may include application-specific integrated circuit (ASIC) , other chipset, logic circuit and/or data processing device.
  • the memory 12 or 22 may include read-only memory (ROM) , random access memory (RAM) , flash memory, memory card, storage medium and/or other storage device.
  • the transceiver 13 or 23 may include baseband circuitry to process radio frequency signals.
  • the memory 12 or 22 can be implemented within the processor 11 or 21 or external to the processor 11 or 21 in which case those can be communicatively coupled to the processor 11 or 21 via various means as is known in the art.
  • the user plane radio protocol architecture within the gNB and UE is shown in FIG. 5, which includes optional Service Data Adaptation Protocol (SDAP) , Packet Data Convergence Protocol (PDCP) , Radio Link Control (RLC) , Medium Access Control (MAC) .
  • SDAP Service Data Adaptation Protocol
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • a gNB further includes a centralized unit (CU) and a plurality of distributed unit (DUs) as shown in FIG. 6.
  • the protocol stack of CU includes an RRC layer, an optional SDAP layer, and a PDCP layer
  • the protocol stack of DU includes an RLC layer, a MAC layer, and a PHY layer.
  • the F1 interface between the CU and DU is established between the PDCP layer and the RLC layer.
  • FIG. 7 illustrates a wireless communication method according to an embodiment of the present application.
  • the method 100 includes the followings.
  • the UE is configured by the base station (BS) (the BS configures the UE) with multiple resources or transmission occasions (TOs) within a configured grant (CG) configuration which is used for transmitting more than one transport block (TB) . That is, there are multiple resources or TOs configured in a CG configuration for transmission of more than one TBs on Physical Uplink Shared Channel (PUSCH) .
  • the CG configuration can be a single CG configuration or one of multiple CG configurations. For the single CG configuration, one CG configuration is configured at one time. For the multiple CG configurations, more than one CG configurations are configured at one time. With this method, a CG configuration with multiple transmission occasions is realized.
  • the number of repetitions of each TO may be used to determine the number of TOs within the CG configuration, and the UE may receive a signaling which is used to indicate that the number of repetitions of each TO is used to determine the number of TOs within the CG configuration.
  • the signaling may be carried out by a field in downlink control information (DCI) or a column in a Time Domain Resource Allocation (TDRA) field of the DCI.
  • the number of TOs within the CG configuration may be indicated by Radio Resource Control (RRC) , or by Medium Access Control (MAC) Control Element (CE) , or by DCI, or by a TDRA field in DCI.
  • RRC Radio Resource Control
  • CE Medium Access Control
  • the number of TOs within the CG configuration may be associated with at least one of the periodicity of CG, the duration of time domain of each TO, the type of Physical Uplink Shared Channel (PUSCH) , the number of slots within the periodicity, or the number of repetitions of each TO.
  • PUSCH Physical Uplink Shared Channel
  • TBs transmitted over the TOs within the CG configuration are configured with repetition, initial transmissions of different TBs are transmitted first, and the repetition of all the different TBs is transmitted consecutively after the initial transmission in order.
  • TBs transmitted over the TOs within the CG configuration are configured with repetition, initial transmissions of different TBs are transmitted first, and all repetitions of one of the different TBs are transmitted consecutively after the initial transmission in order.
  • a frequency hopping may be used for all of the TOs per TB. In a case of collision, if some TBs or TOs are collided with another transmission, a set of supplement TOs are added after a last TO of the CG configuration.
  • the TB over the collided TO is moved to a next or next available TO or the TB over the collided TO is moved to a next or next available TO which carries the same TB.
  • each of the TOs within the CG configuration may have a different HARQ-ID. Multiple HARQ-IDs are determined based on a first symbol of each TO of the CG configuration, or the HARQ-IDs of all the TOs within the CG configuration are determined based on a reference HARQ-ID and/or the index/number of a corresponding TO.
  • each set of TOs within the CG configuration may have a different HARQ-ID, and the HARQ-ID for the TOs within a same set is the same.
  • Multiple HARQ-IDs are determined based on a first symbol of TOs within each set, or the HARQ-IDs of all of the sets of TOs within the CG configuration are determined based on a reference HARQ-ID and/or the index/number of each set of TOs.
  • un-used or used TOs within the CG configuration are indicated by uplink control information (UCI) or CG-UCI or CAS.
  • UCI uplink control information
  • CG-UCI CG-UCI
  • CAS radio resource control
  • a set of values representative of the un-used TOs is configured by radio resource control (RRC)
  • RRC radio resource control
  • the UCI or CG-UCI is used to indicate an index corresponding to one of the set of values representative of the un-used TOs.
  • a default value may be defined to determine time location of the un-used TOs.
  • UCI or CG-UCI includes at least one of the following parameters: the number of the unused TOs, a value of K, or an index of the unused TOs or a set of the unused TOs.
  • a bitmap is used to indicate the un-used TOs within the CG configuration. Furthermore, an extra bit in a field in the UCI or CG-UCI indicates the un-used TOs or used TOs which the UCI or CG-UCI is used to indicate, or indication of the un-used TOs or the used TOs is carried out by different UCIs or CG-UCIs.
  • additional TOs are added after the last TO within the CG configuration.
  • the additional TOs may be indicated by UCI or CG-UCI, which includes at least one of the following parameters: a reference TO, the number of TOs, a value of K, or an index of a TO.
  • the CG-UCI may be connected with other CG-UCI when the CG-UCI and the other CG-UCI are overlapped in time domain.
  • CG-PUSCH may carry the CG-UCI first and then carries other types of UCIs.
  • This disclosure proposes method (s) to determine the resource and/or the number of TOs within a CG configuration. More than one transport block (TB) can be transmitted over the multiple TOs within the CG configuration.
  • CG with repetition is supported in current 3GPP specification.
  • a CG configured with repetition and the number of repetitions is large than 1, multiple transmission occasions can be used for transmitting an initial TB and its repetitions with or without a same redundancy version (RV) .
  • RV redundancy version
  • some parameters can be reused or a new signalling can be introduced to indicate the number of TOs which are used for transmitting more than one TB.
  • RRC Radio Resource Control
  • DCI Downlink control information
  • RRC Radio Resource Control
  • DCI Downlink control information
  • the parameter of the number of repetitions of a CG configuration can be reused for determining the number of the multiple TOs within the CG configuration which is used for transmitting more than one TB.
  • a new signalling can be introduced to enable or disable this function.
  • the signalling can be an RRC or Medium Access Control (MAC) Control Element (CE) or DCI signalling, for example.
  • MAC Medium Access Control
  • CE Control Element
  • TDRA Time Domain Resource Allocation
  • a new field in DCI or a new column in TDRA can be used to indicate whether the number of repetitions can be reused to determine the number of TOs within a CG configuration.
  • the new field or the new column is 1 bit, and bit “1” or “0” indicates the number of repetitions is used to determine the number of TOs.
  • all the parameters configured by RRC and/or DCI can be shared by multiple TOs within a CG configuration.
  • repetition is needed but the number of repetitions should not be used to determine the number of TOs.
  • the number of TOs within a CG configuration can be indicated by a new signalling or indicated by cooperating with a current parameter.
  • a new RRC or MAC CE or DCI can be introduced for indicating the number of TOs within a CG configuration.
  • the number of TOs within a CG configuration can also be indicated by TDRA.
  • a new column can be added into the TDRA table to indicate the number of TOs within a CG configuration.
  • the number of TOs within a CG configuration means a same number of TBs/PUSCHs that are transmitted over the multiple TOs.
  • not all the parameters configured by RRC and/or DCI are shared by multiple TOs within a CG configuration.
  • a part of parameters of the TOs are not shared.
  • At least one of TDRA, modulation coding scheme (MCS) or RV can be configured independently among the multiple TOs.
  • MCSs and RVs can be of a joint code-point (where a code-point can be used to indicate a set of TDRAs, MCSs, RVs or HARQ-IDs) .
  • HARQ-IDs hybrid automatic repeat request identifications
  • the number of TOs within a CG configuration is associated with at least one of the periodicity of CG, the duration of time domain of each TO, the type of Physical Uplink Shared Channel (PUSCH) , the number of slots within the periodicity, or the number of repetitions of each TO.
  • the PUSCH is configured as type A
  • the total number of TOs is equal to the number or available number of slots of one cycle or period of the CG.
  • the PUSCH is configured as Type B
  • the total number of TOs is equal to: ceil or floor ( (the total number of symbols or available symbols of one cycle or period of the CG) divides (the time domain duration of a TO) ) .
  • the above embodiments realize determination on the resource and/or the number of TOs within a CG configuration which is used to transmit more than one TB, this avoids ambiguity between gNB and UE, and such a CG enhancement can be implemented for XR applications, for example.
  • This disclosure proposes method (s) to determine the time/frequency pattern of multiple TOs within a CG configuration and handle the case that a TB is collided with other transmission.
  • a straightforward way would be to enable repetition of a TB or a PUSCH transmission.
  • the time repetition pattern based on TB can be considered, as that shown in FIG. 8 and FIG. 9 respectively.
  • FIG. 8 An example of time domain pattern for multiple TBs transmitted over multiple TOs within a CG configuration is shown in FIG. 8.
  • TBs transmitted over the TOs within the CG configuration are configured with repetition, different TBs of an initial transmission are transmitted first, and a repetition of all the different TBs is transmitted consecutively after the initial transmission. It is assumed that there are 3 TBs transmitted over multiple TOs within a CG configuration, denoted as TB1, TB2 and TB3.
  • Different TBs i.e., TB1, TB2, TB3 of initial transmission can be mapped to the TOs first, then the first repetition (i.e., R1-1, R2-1, R3-1) of the different TBs, then the second repetition (R1-2, R2-2, R3-2) of the different TBs..., and the repetitions are configured in this way.
  • the rule for the TBs to map to the TOs is based on the following: 1. mapping the initial transmission of all the TBs first; 2. mapping the first repetition of all the TBs, and mapping the remaining repetitions of all the TBs in the same way.
  • TB1 in the figures means the first transmission or initial transmission
  • R1-1, R1-2, R1-3 means the repetitions of the TB1
  • TB2 in the figures means the first transmission or initial transmission
  • R2-1, R2-2, R2-3 means the repetitions of the TB2.
  • the remaining TBs (e.g., TB3) are defined in a similar fashion. In addition, this definition is also applicable to FIG 9, FIG 10 and FIG 11.
  • FIG. 9 Another example of time domain pattern for multiple TBs transmitted over multiple TOs within a CG configuration is shown in FIG. 9.
  • TBs transmitted over the TOs within the CG configuration are configured with repetition, different TBs of an initial transmission are transmitted first, and all repetitions of one of the different TBs are transmitted consecutively after the initial transmission. It is assumed that there are 3 TBs transmitted over multiple TOs within a CG configuration, denoted as TB1, TB2 and TB3.
  • Different TBs i.e., TB1, TB2, TB3 of initial transmission can be mapped to the TOs first, then all the repetitions (i.e., R1-1, R1-2, R1-3) of the first TB, then all the repetitions (i.e., R2-1, R2-2, R2-3) of the second TB..., and the repetitions are configured in this way.
  • the rule for the TBs to map to the TOs is based on the following: 1. mapping the initial transmission of all the TBs first; 2. mapping all of the repetitions of a TB based on the TB’s order from the smallest to the largest.
  • the frequency hopping rule is used for all of the TOs within the CG configuration, wherein the hopping can be inter-slot hopping, inter-TO hopping, inter-TB hopping or intra-slot hopping. In some embodiments, the frequency hopping rule is used for all of the TOs within the CG configuration based on a time duration of a TB, wherein the hopping can be inter-slot hopping, inter-TO hopping, inter-TB hopping or intra-slot hopping. Taking the inter-TO hopping for example (based on FIG. 8) , when the inter-TO hopping is enabled and the number of hops is 2, the first hop includes ⁇ TB1, R1-2 ⁇ and the second hop includes ⁇ R1-1, R1-3 ⁇ . The frequency resources for the TOs within a same hop is the same, and there is a frequency offset between different hops.
  • Case 1 In a case that multiple TBs without repetition transmitted over multiple TOs within a CG configuration, if some TBs or TOs are collided with another transmission, a set of supplement TOs can be added after a last TO of the CG configuration, and the parameters of configured TOs or a reference TO may share with the supplement TO, wherein the reference TO is pre-defined or indicated by UE or gNB.
  • the addition of the supplement TO (s) can be indicated by a uplink control information (UCI) or demodulation reference signal (DMRS) .
  • the HARQ-ID of the supplement TO is the same as that of the TO which is collided with another transmission.
  • Case 2 In a case that multiple TBs with repetition transmitted over multiple TOs within a CG configuration, if some TBs or TOs are collided with another transmission, the TB over the collided TO can be moved to the next or next available TO or the TB over the collided TO can be moved to the next or next available TO which carries the same TB. For instance, as shown in FIG. 10, it is assumed that there are 3 different TBs each with 3 repetitions (not including the initial transmission) transmitted over multiple TOs within a CG configuration, and the RV cycling for each TB is ⁇ 0, 2, 3, 1 ⁇ . The initial transmission of the TBs (e.g., TB2) is collided with another transmission.
  • the initial transmission of the TBs e.g., TB2
  • the initial transmission of TB2 can be moved to the position of R2-1.
  • the corresponding RV cycling may be: TB2’s (at the position of R2-1) RV is 0, R2-2’s RV is 3, and R2-3’s RV is 1.
  • the initial TB2 can be moved to the nearest TO or nearest available TO which carries a repetition, and the RV of the TO is the same as the RV of the initial TB.
  • the initial TB2 can be moved to the R1-1, and the original R1-1 and all of the remaining repetitions can be postponed to the next TOs or the R1-1 is dropped.
  • the above embodiments realize determination on the time/frequency pattern of multiple TOs within a CG configuration which is used to transmit more than one TB and a handle of the case that a TB is collided with other transmission, this enables repetition of a TO or TB within the CG configuration, and such a CG enhancement can be implemented for XR applications, for example.
  • This disclosure proposes method (s) to determine the resource/transmission occasions within a CG configuration and mainly focuses on a semi-static way to determine the HARQ-IDs of all of the TOs within the CG configuration, especially for a case of the TOs with repetition.
  • the HARQ-ID for each TO or each set of TOs has to be different in order to avoid the ambiguity between UE and gNB for re-transmission.
  • Case 1 In a case of the HARQ-ID for multiple TOs without repetition, each of the TOs has a different HARQ-ID.
  • HARQ-ID of a CG is calculated based on the time location of the first transmission occasion of a CG, represented by the following formula:
  • HARQ Process ID [floor (CURRENT_symbol /periodicity) ] modulo nrofHARQ-Processes + harq-ProcID-Offset2 (1)
  • the HARQ-IDs are calculated by reusing the formula of the current 3GPP specification, but the first symbol is not based on the first TO of the CG configuration. Instead, the first symbol is based on the first symbol of each TO of the CG configuration.
  • the multiple HARQ-IDs can be calculated based on the first symbol of each TO of the CG configuration, or a reference HARQ-ID can be calculated based on current 3GPP specification and the HARQ-IDs of all the TOs are determined based on the reference HARQ-ID and are associated with a configured parameter or time/frequency resource or time/frequency resource location or the number of TOs or the index of TOs.
  • the HARQ-IDs for all the TOs can be configured by RRC or MAC CE or DCI directly, and in this case the number of different HARQ-IDs is equal to the number of TOs.
  • Case 2 In a case of the HARQ-ID for multiple TOs with repetition, each set of TOs has a different HARQ-ID, and the HARQ-ID for the TOs within a same set is the same, wherein a set of TOs transmit the same TB with or without repetition.
  • a set of TOs transmit the same TB with or without repetition.
  • TB1 is transmitted over ⁇ TB1, R1-1, R1-2, R1-3 ⁇
  • TB2 is transmitted over ⁇ TB2, R2-1, R2-2, R2-3 ⁇
  • TB3 is transmitted over ⁇ TB3, R3-1, R3-2, R3-3 ⁇ .
  • ⁇ TB1, R1-1, R1-2, R1-3 ⁇ is defined as TO set 1
  • ⁇ TB2, R2-1, R2-2, R2-3 ⁇ is defined as TO set 2
  • ⁇ TB3, R3-1, R3-2, R3-3 ⁇ is defined as TO set3.
  • HARQ-IDs for set 1, set 2 and set 3 are different, and the HARQ-ID for a set (e.g., set1, set2 or set3) is the same.
  • the HARQ-IDs are calculated by reusing the formula of the current 3GPP specification, but the first symbol is not based on the first TO of the CG configuration. Instead, the first symbol is based on the first symbol of a set of TOs.
  • the multiple HARQ-IDs can be calculated based on the first symbol of a set of TOs or a reference HARQ-ID can be calculated based on current 3GPP specification and the HARQ-IDs of all of the sets of TOs are determined based on the reference HARQ-ID and are associated with a configured parameter or first time/frequency resource of the sets of TOs or first time/frequency resource location of the sets of TOs or the number of sets of TOs or the index of the sets of TOs.
  • the HARQ-ID for all sets of TOs can be configured by RRC or MAC CE or DCI directly, and in this case the number of different HARQ-IDs is equal to the number of sets of TOs.
  • the above embodiments realize determination on the HARQ-IDs for all of the TOs within a CG configuration which is used to transmit more than one TB, this resolves HARQ-IDs used between gNB and UE and avoids HARQ-ID collision, and such a CG enhancement can be implemented for XR applications, for example.
  • UCI can be reported in physical uplink control channel (PUCCH) , mainly including HARQ-ACK information, scheduling request (SR) , link recovery request (LRR) , channel state information (CSI) and CG-UCI, in which UCI bits include HARQ-ACK information bits (if any) , SR information bits (if any) , LRR information bit (if any) and CSI bits (if any) .
  • PUCCH physical uplink control channel
  • SR scheduling request
  • LRR link recovery request
  • CSI channel state information
  • CG-UCI in which UCI bits include HARQ-ACK information bits (if any) , SR information bits (if any) , LRR information bit (if any) and CSI bits (if any) .
  • UCI can also be reported in physical uplink shared channel (PUSCH)
  • PUSCH physical uplink shared channel
  • a set of offset values are defined for a UE to determine a number of resources for multiplexing HARQ-ACK information and for multiplexing CSI reports in a PUSCH.
  • Offset values are also defined for multiplexing CG-UCI in a CG-PUSCH.
  • CG-UCI AUL-UCI, which is also referred to CG-UCI
  • CG-UCI mainly includes HARQ-ID, RV-ID, new data indicator (NDI) , etc.
  • Similar mechanism of LTE-LAA is reused for 5G NR in unlicensed spectrum (NR-U) , and the content for CG-UCI in NR-U includes: HARQ-ID, RV-ID, NDI, channel occupancy time (COT) , etc.
  • HARQ-ID HARQ-ID
  • RV-ID RV-ID
  • NDI NDI
  • COT channel occupancy time
  • new UCI and CG-UCI can be used to indicate the un-used TOs.
  • Case 1 In a case that several consecutive TOs in a start portion within a CG configuration are un-used TOs, the packet for a traffic is not arrived at the expectant location in time domain due to jitter, and thus some TOs in a start portion within a CG configuration are not used.
  • RAN2 which develop XR-awareness or other topics
  • a UE can skip a set of consecutive TOs in a start portion of CG.
  • a new type of UCI carried on PUCCH is needed, the contents of the new UCI can be as follows:
  • a set of values representative of un-used TOs can be configured by RRC, then the UCI is used to indicate a corresponding index, and a default value (e.g., a default offset value) is defined to determine the time location of the un-used TOs.
  • the default value can be pre-defined, and it is a time unit based on granularity of symbol or slot or duration of a TO or ms.
  • the default value can be the processing time for gNB to handle of the signalling transmitted by UE.
  • the remaining TOs located behind the duration from the first symbol or last symbol or the slot of the UCI to the length of default value within a CG period are indicated as un-used TOs.
  • the value of un-used TOs means the number of consecutive or non-consecutive TOs.
  • the value of K is a time unit, and the granularity of the time unit can be slot, symbol, TO duration or ms. It means, from the time location of the signalling, a set of un-used TOs are indicated after K.
  • Non-sequence based: the content of UCI includes at least one of the following parameters: the number of unused TOs, the value of K, or the index of unused TOs or a set of unused TOs, where K is used to determine the time location of un-used TOs.
  • the number of TOs means the number of consecutive or non-consecutive TOs.
  • the number of TOs are used to determine the number of un-used TOs.
  • the value of K is a time unit, and the granularity of the time unit can be slot, symbol, TO duration or ms. It means, from the time location of the signalling, a set of un-used TOs are indicated after K. In this case, the resources of the PUCCH should match the XR periodicity.
  • Bitmap the size of this field is equal to the total number of TOs.
  • a matched UCI indicates next consecutive un-used TOs within a CG configuration when the UE buffer has no data. If traffic data arrive before one TO within a CG configuration, then a UCI can be transmitted to indicate that next consecutive TOs within a CG configuration are used. In this way, a set of PUCCHs need to be configured for indicating the un-used and used TOs within the CG configuration since there is no predicted information about packet size or jitter on UE side. A trade-off between overhead of PUCCH and resource saving for the TOs within a CG configuration needs to be evaluated. In addition, to distinguish the UCI which is used for indication of un-used or used TOs, either an extra bit in a field in UCI is need or more than one type of UCIs need to be designed.
  • a Channel Associated Signalling (CAS) within a CG configuration is introduced to indicate the un-used TOs in a start portion of the CG.
  • the CAS is associated with a CG, and a specific resource within a CG or associated with a CG can be configured, and then the information for indicating the un-used TO is carried by the resource by PUSCH, MAC CE, UCI or other UL channels.
  • Case 2 Several consecutive TOs in an end portion of a CG configuration are un-used TOs. This case is the initial motivation to support the function of indication of un-used TOs. In this case, when a UE finishes a packet transmission and there have several remaining TOs within a CG configuration, the UE can send an information to gNB for indicating the un-used TOs within the CG configuration to avoid a waste of resources. In this case, new UCI type carried by PUCCH and/or CG-UCI can be considered. A detailed design is shown as follows:
  • Sequence based a set of values representative of un-used TOs can be configured by RRC, then the UCI is used to indicate a corresponding index (e.g., the UCI is similar to SR) , and a default value (e.g., a default offset value) is defined to determine the time location of the un-used TOs. For instance, as shown in FIG. 12, when a UCI indicating the un-used TOs is transmitted, gNB regards the TOs after the default value within the CG as un-used TOs (e.g., TO8, TO9, TO10) .
  • a default value e.g., a default offset value
  • Sequence based a set of values representative of un-used TOs and a corresponding value K (e.g., an offset value) are configured by RRC, and then the UCI indicates a corresponding index.
  • K e.g., an offset value
  • Non-sequence based a new UCI is carried by PUCCH, and the content of UCI includes at least one of the number of unused TOs, the value of K, or the index of unused TOs or a set of unused TOs, etc., where K is used to determine the time location of un-used TOs.
  • CG-UCI the content of UCI includes at least one of the following parameters: the number of TOs, the value of K, or the index of a TO or a set of TOs, etc., where K is used to determine the time location of un-used TOs.
  • the number of TOs means number of consecutive or non-consecutive TOs.
  • the number of TOs are used to determine the number of un-used TOs.
  • the value of K is a time unit, and the granularity of the time unit can be slot, symbol, TO duration or ms. It means, from the time location of the signalling, a set of un-used TOs are indicated after K.
  • the resources e.g., beta-offset
  • the resources which are used for carrying CG-UCI can be configurable.
  • Bitmap the size of this field is equal to the total number of TOs.
  • the above embodiments realize indication of the un-used TOs within a CG configuration which is used to transmit more than one TB, and this can avoid a waste of resources and may avoid extra scheduling delay. Furthermore, these improvements are applicable to XR applications to address the issues of jitter and varying size of XR packet.
  • New UCI or CG-UCI can be used to indicate the additional TOs and can include at least one of the following parameters: an index of a reference TO, the number of TOs that need to be added, the value of K, or an index of a TO, where the index of a reference TO is used to determine all of the parameters of a PUSCH, such as Frequency Domain Resource Assignment (FDRA) , TDRA, MCS, etc.
  • FDRA Frequency Domain Resource Assignment
  • the default value (a default reference value) can be used, for example, the parameters of the last TO within the CG configuration.
  • the number of TOs is used to indicate the number of additional or supplement TOs, and all of the TOs shares the same parameters of the reference TO or the default value (a default reference value) except HARQ-ID.
  • the value of K is used to indicate a start point in time domain of the additional or supplement TOs.
  • the above embodiments realize introducing additional TOs after the last TO within the CG configuration which is used to transmit more than one TB, and this can reduce the scheduling latency. Furthermore, these improvements are applicable to XR applications to address the issues of jitter and varying size of XR packet.
  • negative new UCI may means the UCI indicates nothing and/or no TOs are indicated as un-used TOs
  • positive new UCI may means the UCI indicates some information and/or some TOs are indicated as un-used TOs.
  • negative SR may indicate there is no SR to be transmitted while positive SR may carry information of the SR.
  • Case 1-1 Negative new UCI, negative SR and at most 2 HARQ-ACK information bits in a resource using PUCCH format 0 in a slot or a TO.
  • UE only transmits the HARQ-ACK using the PUCCH format 0 and the cyclic shift parameter is determined based on HARQ-ACK.
  • the UE transmits HARQ-ACK information (sequence) only based on HARQ-ACK parameters and the gNB regards both the SR and the new UCI as negative.
  • Case 1-2 Negative new UCI, positive SR and at most 2 HARQ-ACK information bits in a TO or slots. In this case, it is based on resources of SR.
  • Case 1-3 Positive new UCI, negative SR and at most 2 HARQ-ACK information bits in a TO or slots. In this case, it is based on resources of new UCI.
  • Case 1-4 Positive new UCI, positive SR and at most 2 HARQ-ACK information bits in a TO or slots. In this case, it is based on both resources of SR or new UCI, and cyclic shift value.
  • Case 2 A PUCCH with positive new UCI and at most 2 HARQ-ACK information bits in a resource using PUCCH format 0 in a slot or a TO.
  • both new UCI and HARQ-ACK have their cyclic shift values, and the cyclic shift values can be pre-defined. Due to a limit of cyclic shift values, the priority rules can be introduced for handing this case. The following alternatives can be considered.
  • Alt 1 Regard positive new UCI as high priority and the HARQ-ACK transmission as low priority.
  • UE transmits new UCI using the PUCCH format 0 for new UCI, and the cyclic shift parameter is determined based on new UCI configuration.
  • Alt 2 Regard HARQ-ACK transmission as high priority and the new UCI report as low priority.
  • UE transmits HARQ-ACK using the PUCCH format 0 for HARQ-ACK, and the cyclic shift parameter is determined based on only HARQ-ACK report parameters.
  • Alt 3 Regard HARQ-ACK transmission as high priority and the new UCI report as low priority.
  • UE transmits HARQ-ACK using the PUCCH format 0 for HARQ-ACK, and the cyclic shift parameter is determined based on new UCI.
  • Alt 4 Regard HARQ-ACK transmission as high priority and the new UCI report as low priority.
  • UE transmits HARQ-ACK using the PUCCH format 0 for new UCI, and the cyclic shift parameter is determined based on HARQ-ACK.
  • Alt 5 Regard HARQ-ACK transmission and new UCI report as the same priority, and introduce a new combination of cyclic shift parameters for combining the new UCI and HARQ-ACK, for instance, as shown in Table 1.
  • Table 1 Mapping of values for one HARQ-ACK information bit and one new UCI bit to sequences for PUCCH format 0
  • Alt 6 UE transmits the PUCCH format 0 and corresponding information which has an early symbol. For instance, if the first symbol of PUCCH format 0 for HARQ-ACK is early than the PUCCH format 0 for new UCI, then UE transmits the HARQ-ACK; if the first symbol of PUCCH format 0 for HARQ-ACK is later than the PUCCH format 0 for new UCI, then UE transmits the new UCI.
  • Case 3 A PUCCH with new UCI (carrying several bits) and at most 2 HARQ-ACK information bits in a resource using PUCCH format 0 with different priorities in a slot, wherein the priority is configured by gNB. For the case that the new UCI with high priority and the HARQ-ACK with low priority, then UE should report new UCI to the gNB and drop the HARQ-ACK or postpone HARQ-ACK to the next (available) transmission occasion.
  • the UE should report HARQ-ACK using the PUCCH format 0, and the cyclic shift parameter is determined based on only HARQ-ACK, and the new UCI is drop ped or postponed to the next (available) transmission occasion.
  • the UE should report HARQ-ACK using the PUCCH format 0, and the cyclic shift parameter is determined based on only HARQ-ACK, and the new UCI is drop ped or postponed to the next (available) transmission occasion.
  • 1 bit should be added in the behind of HARQ-ACK or new UCI.
  • Case 4 For the case that UE would transmit new UCI in a resource using PUCCH format 0 and HARQ-ACK information bits in a resource using PUCCH format 1 in a slot, both the new UCI and the HARQ-ACK have the same priority.
  • the priority rules can be introduced to handle this case. The following alternatives can be considered.
  • Alt 2 Whether UE reports new UCI or HARQ-ACK information is based on the first symbol of each PUCCH format. If the first symbol of PUCCH format 0 is early than PUCCH format 1, then UE transmits only a PUCCH with new UCI information bits in a resource using PUCCH format 0; if the first symbol of PUCCH format 1 is early than PUCCH format 0, then UE transmits only a PUCCH with HARQ-ACK information bits in a resource using PUCCH format 1. If the first symbol of each PUCCH format is the same, UE transmits the information bits using a PUCCH format which has short symbols.
  • Case 5 For the case that UE would transmit new UCI information in a resource using PUCCH format 1 and up to 2 HARQ-ACK information bits in a resource using PUCCH format 0 in a slot, the new UCI and the HARQ-ACK have the same priority.
  • the priority rules can be introduced to handle this case. The following alternatives can be considered.
  • Alt 1 UE transmits only a PUCCH with new UCI bits in the resources using PUCCH format 1.
  • a new cyclic shift value table can be designed to combine the new UCI and HARQ-ACK transmission, using PUCCH format 0 to transmit the combined information.
  • Case 6 For the case that UE would transmit new UCI in a resource using PUCCH format 1 and at most two HARQ-ACK information bits in a resource using PUCCH format 1 in a slot. Then, UE transmits a PUCCH in the resource using PUCCH format 1 for new UCI information and/or postpones the HARQ-ACK to the next (available) transmission occasion.
  • the UE transmits a PUCCH for new UCI or HARQ-ACK, which is based on the time location of the PUCCH. If the first symbol of PUCCH format 1 for HARQ-ACK is early than PUCCH format 1 for new UCI, then UE transmits only a PUCCH with HARQ-ACK information bits in a resource using PUCCH format 1. If the first symbol of PUCCH format 1 for new UCI is early than PUCCH format 1 for HARQ-ACK, then UE transmits only a PUCCH with new UCI information bits in a resource using PUCCH format 1. If the first symbol of each PUCCH format is the same and UE transmits the information bits using a PUCCH format which has short symbols.
  • Case 7 A UE would transmit a PUCCH with HARQ-ACK or CSI or information bits (denotes as M) in a resource using PUCCH format 2 or PUCCH format 3 or PUCCH format 4 and transmit K PUCCHs for respective N bits of new UCI in a slot.
  • the new UCI information bits in a resource are transmitted using PUCCH format 2 or PUCCH format 3 or PUCCH format 4, and then all of the UCIs are connected, and it is regarded as an entity.
  • the above embodiments realize multiple UCI multiplexing, and multiplexing rules are established between the signalling for indicating the un-used or additional TOs and current UL control information. Therefore, introducing the signalling for indicating the un-used or additional TOs is made implementable, and thus the issues of jitter and varying size of XR packet can be addressed.
  • This disclosure proposes method (s) to handle the rules for multiple UCI multiplexing, including CG-UCI multiplexing with current types of UCI.
  • the CG-UCI for XR is regarded as having the same or similar priority as CG-UCI for NR-U, and a similar mechanism can be re-used for multiplexing with current UCI.
  • CG-UCI for XR and CG-UCI for NR-U are overlapped in time domain, connect the CG-UCI for XR and the CG-UCI for NR-U and regard the connected CG-UCI as an entity.
  • the CG-UCI for XR is regarded as the highest priority.
  • the CG-PUSCH carries CG-UCI for XR first, then other UCIs.
  • the above embodiments realize multiple UCI multiplexing, and multiplexing rules are established between the signalling for indicating the un-used or additional TOs and current UL control information. Therefore, introducing the signalling for indicating the un-used or additional TOs is made implementable, and thus the issues of jitter and varying size of XR packet can be addressed.
  • Some embodiments of the present application are a combination of “techniques/processes” that can be adopted in 3GPP specification to create an end product. Some embodiments of the present application could be adopted in the 5G NR unlicensed band communications. Some embodiments of the present application propose technical mechanisms.
  • the embodiment of the present application further provides a computer readable storage medium for storing a computer program.
  • the computer readable storage medium enables a computer to execute corresponding processes implemented by the UE/BS in each of the methods of the embodiments of the present application. For brevity, details will not be described herein again.
  • the embodiment of the present application further provides a computer program product including computer program instructions.
  • the computer program product enables a computer to execute corresponding processes implemented by the UE/BS in each of the methods of the embodiments of the present application. For brevity, details will not be described herein again.
  • the embodiment of the present application further provides a computer program.
  • the computer program enables a computer to execute corresponding processes implemented by the UE/BS in each of the methods of the embodiments of the present application. For brevity, details will not be described herein again.
  • the non-transitory computer readable medium may include at least one from a group consisting of: a hard disk, a CD-ROM, an optical storage device, a magnetic storage device, a Read Only Memory, a Programmable Read Only Memory, an Erasable Programmable Read Only Memory, EPROM, an Electrically Erasable Programmable Read Only Memory and a Flash memory.
  • the software may be stored in a computer-readable medium and loaded into computing system using, for example, removable storage drive.
  • a control module (in this example, software instructions or executable computer program code) , when executed by the processor in the computer system, causes a processor to perform the functions of the invention as described herein.
  • inventive concept can be applied to any circuit for performing signal processing functionality within a network element. It is further envisaged that, for example, a semiconductor manufacturer may employ the inventive concept in a design of a stand-alone device, such as a microcontroller of a digital signal processor (DSP) , or application-specific integrated circuit (ASIC) and/or any other sub-system element.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de communication sans fil et des dispositifs associés tels qu'un équipement utilisateur (UE) et une station de base (BS) (p. ex. un gNB). Le procédé sans fil, mis en œuvre par un UE, comprend une configuration avec de multiples ressources ou occasions de transmission (TO) dans une configuration d'autorisation configurée (CG) qui est utilisée pour transmettre plus d'un bloc de transport (TB). Ce procédé permet de réaliser une configuration de CG avec de multiples occasions de transmission.
PCT/CN2023/076928 2023-02-17 2023-02-17 Procédé de communication sans fil et dispositifs associés Ceased WO2024168869A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP23922006.4A EP4666788A1 (fr) 2023-02-17 2023-02-17 Procédé de communication sans fil et dispositifs associés
CN202380093688.XA CN120677811A (zh) 2023-02-17 2023-02-17 无线通信方法及相关设备
PCT/CN2023/076928 WO2024168869A1 (fr) 2023-02-17 2023-02-17 Procédé de communication sans fil et dispositifs associés

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2023/076928 WO2024168869A1 (fr) 2023-02-17 2023-02-17 Procédé de communication sans fil et dispositifs associés

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WO2024168869A1 true WO2024168869A1 (fr) 2024-08-22

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021212311A1 (fr) * 2020-04-21 2021-10-28 Qualcomm Incorporated Transmission cg-ul améliorée sur pusch
WO2021255117A1 (fr) * 2020-06-19 2021-12-23 Telefonaktiebolaget Lm Ericsson (Publ) Transmission d'autorisation configurée multi-trp
CN114270766A (zh) * 2019-06-26 2022-04-01 夏普株式会社 实现上行链路多路复用的用户装备和基站
CN114762434A (zh) * 2019-10-04 2022-07-15 Lg电子株式会社 用于在nr v2x中发送传输块的方法和装置
CN114930932A (zh) * 2019-11-08 2022-08-19 Lg电子株式会社 用于在nr v2x中重传副链路的方法和装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114270766A (zh) * 2019-06-26 2022-04-01 夏普株式会社 实现上行链路多路复用的用户装备和基站
CN114762434A (zh) * 2019-10-04 2022-07-15 Lg电子株式会社 用于在nr v2x中发送传输块的方法和装置
CN114930932A (zh) * 2019-11-08 2022-08-19 Lg电子株式会社 用于在nr v2x中重传副链路的方法和装置
WO2021212311A1 (fr) * 2020-04-21 2021-10-28 Qualcomm Incorporated Transmission cg-ul améliorée sur pusch
WO2021255117A1 (fr) * 2020-06-19 2021-12-23 Telefonaktiebolaget Lm Ericsson (Publ) Transmission d'autorisation configurée multi-trp

Also Published As

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EP4666788A1 (fr) 2025-12-24
CN120677811A (zh) 2025-09-19

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