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WO2023010413A1 - Procédés et appareils de transmission de canal de commande de liaison montante physique - Google Patents

Procédés et appareils de transmission de canal de commande de liaison montante physique Download PDF

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Publication number
WO2023010413A1
WO2023010413A1 PCT/CN2021/110876 CN2021110876W WO2023010413A1 WO 2023010413 A1 WO2023010413 A1 WO 2023010413A1 CN 2021110876 W CN2021110876 W CN 2021110876W WO 2023010413 A1 WO2023010413 A1 WO 2023010413A1
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WIPO (PCT)
Prior art keywords
bfd
spatial relation
relation information
pucch resource
mac
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PCT/CN2021/110876
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English (en)
Inventor
Wei Ling
Yi Zhang
Chenxi Zhu
Bingchao LIU
Lingling Xiao
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Lenovo Beijing Ltd
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Lenovo Beijing Ltd
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Priority to PCT/CN2021/110876 priority Critical patent/WO2023010413A1/fr
Publication of WO2023010413A1 publication Critical patent/WO2023010413A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present disclosure generally relates to wireless communication technologies, and especially to methods and apparatuses for physical uplink control channel (PUCCH) transmission.
  • PUCCH physical uplink control channel
  • TRP receive point
  • BFR TRP-specific beam failure recovery
  • NR Release 17 is designed based on Release 16 secondary cell (SCell) BFR scheme.
  • BFD beam failure detection
  • RS reference signal
  • NBI new beam indicator
  • a new beam from its associated NBI-RS set is reported from a medium access control (MAC) control element (CE) if the new beam is found or a no new beam indication is reported from the MAC CE if the new beam cannot be found.
  • MAC medium access control
  • CE control element
  • the beam of the PUCCH resource may be updated. How to transmit the PUCCH resource after receiving the BS's confirmation of the TRP-specific BFR is an important issue to be addressed.
  • Embodiments of the present disclosure provide solutions related to PUCCH transmission, which may address issues including, for example and not limited to, how to set up an association between at least one spatial relation information of a PUCCH resource and at least one BFD-RS set of two BFD-RS sets configured for TRP-specific BFR, and/or how to determine updated spatial relation information and power control parameters of the PUCCH resource after receiving the BS's confirmation of TRP-specific BFR based on the association between the at least one spatial relation information and the at least one BFD-RS set.
  • a method performed by a user equipment includes: receiving configuration information for a first BFD-RS set and a second BFD-RS set for a serving cell, wherein the first BFD-RS set has a lower index than the second BFD-RS set in the serving cell, and receiving a first MAC CE for activating at least one spatial relation information for a first PUCCH resource in the serving cell, wherein the first MAC CE further indicates an association between at least one BFD-RS set of the first BFD-RS set and the second BFD-RS set and the at least one spatial relationship information.
  • the first MAC CE includes a one-bit field for indicating the association between the at least one BFD-RS set and the at least one spatial relationship information.
  • the one-bit field indicates that the one spatial relation information is associated with the first BFD-RS set or the second BFD-RS set.
  • the one-bit field indicates that the first spatial relation information is associated with one BFD-RS set of the first BFD-RS set and the second BFD-RS set, and the second spatial relation information is associated with the other BFD-RS set of the first BFD-RS set and the second BFD-RS set.
  • each PUCCH resource group of the at least one PUCCH resource group is associated with one spatial relation information which is activated for each PUCCH resource included in the PUCCH resource group by the first MAC CE.
  • the first MAC CE comprises at least one one-bit field, and each one-bit field is associated with one PUCCH resource group to indicate that the spatial relationship information associated with the one PUCCH resource group is associated with one BFD-RS set of the first BFD-RS set and the second BFD-RS set.
  • the method further includes transmitting a second MAC CE in a first physical uplink shared channel (PUSCH) to indicate one or two failed BFD-RS sets of the first BFD-RS set and the second BFD-RS set and first information of new beam (s) associated with the one or two failed BFD-RS sets; receiving a physical downlink control channel (PDCCH) resource with a downlink control information (DCI) format for scheduling a second PUSCH resource, wherein the DCI format indicates a same hybrid automatic repeat request (HARQ) process number as that for transmission of the first PUSCH resource and has a toggled new data indication (NDI) field value; and transmitting the first PUCCH resource based on the second MAC CE in response to receiving the PDCCH after a pre-defined number of symbols from reception of a last symbol of the PDCCH.
  • PUSCH physical uplink shared channel
  • HARQ hybrid automatic repeat request
  • NDI toggled new data indication
  • transmitting the first PUCCH resource comprises transmitting all repetition (s) of the first PUCCH resource associated with the first spatial relation information by using a spatial domain filter corresponding to the new beam and a power determined based on: a pathloss reference RS determined according to the new beam; a P0 value with a lowest index in p0-PUCCH when the failed BFD-RS set is the first BFD-RS set or a P0 value with a second lowest index in p0-PUCCH when the failed BFD-RS set is the second BFD-RS set; and a close loop index associated with the first spatial relation information or a close loop index of 0.
  • transmitting the first PUCCH resource comprises transmitting all repetition (s) of the first PUCCH resource by using a spatial domain filter associated with the second spatial relation information and a power determined based on a power control parameter set associated with the second spatial relation information.
  • transmitting the first PUCCH resource comprises transmitting the first PUCCH resource by using a spatial domain filter corresponding to one new beam of the first new beam and the second new beam that is associated with a BFD-RS set where the one spatial relation information is associated, and a power determined based on: a pathloss reference RS determined according to the one new beam; a P0 value with a lowest index in p0-PUCCH when the one spatial relation information is associated with the first BFD-RS set or a P0 value with a second lowest index in p0-PUCCH when the one spatial relation information is associated with the second BFD-RS set; and a close loop index associated with
  • transmitting the first PUCCH resource comprises: transmitting all repetition (s) of the first PUCCH resource associated with the one spatial relation information associated with the first BFD-RS set by using a spatial domain filter corresponding to the first new beam and a power determined based on: a pathloss reference RS determined according to the first new beam; a P0 value with a lowest index in p0-PUCCH; and a close loop index associated with the one spatial relation information or a close loop index of 0; and transmitting all repetition (s)
  • transmitting the first PUCCH resource comprises transmitting all repetition (s) of the first PUCCH resource by using a spatial domain filter corresponding to the new beam and a power determined based on: a pathloss reference RS determined according to the new beam; a P0 value with a lowest index in p0-PUCCH when the one BFD-RS set is the first BFD-RS set or a P0 value with a second lowest index in p0-PUCCH when the one BFD-RS set is the second BFD-RS set; and a close loop index of 0.
  • a method performed by a BS includes: transmitting configuration information for a first BFD-RS set and a second BFD-RS set for a serving cell, wherein the first BFD-RS set has a lower index than the second BFD-RS set in the serving cell, and transmitting a first MAC CE for activating at least one spatial relation information for a first PUCCH resource in the serving cell, wherein the first MAC CE further indicates an association between at least one BFD-RS set of the first BFD-RS set and the second BFD-RS set and the at least one spatial relationship information
  • the first MAC CE comprises a one-bit field for indicating the association between the at least one BFD-RS set and the at least one spatial relationship information.
  • the one-bit field indicates that the one spatial relation information is associated with the first BFD-RS set or the second BFD-RS set.
  • the one-bit field indicates that the first spatial relation information is associated with one BFD-RS set of the first BFD-RS set and the second BFD-RS set, and the second spatial relation information is associated with the other BFD-RS set of the first BFD-RS set and the second BFD-RS set.
  • each PUCCH resource group is associated with one spatial relation information which is activated for each PUCCH resource included in the PUCCH resource group by the first MAC CE.
  • the first MAC CE comprises at least one one-bit field, and each one-bit field is associated with one PUCCH resource group to indicate that the spatial relationship information associated with the one PUCCH resource group is associated with one BFD-RS set of the first BFD-RS set and the second BFD-RS set.
  • receiving a second MAC CE in a first PUSCH wherein the second MAC CE indicates one or two failed BFD-RS sets of the first BFD-RS set and the second BFD-RS set and first information of new beam (s) associated with the one or two failed BFD-RS sets, transmitting a PDCCH with a DCI format for scheduling a second PUSCH transmission, wherein the DCI format indicates a same HARQ process number as that for transmission of the first PUSCH and has a toggled NDI field value; and receiving the first PUCCH resource based on the second MAC CE after a pre-defined number of symbols from transmission of a last symbol of the PDCCH.
  • receiving the first PUCCH resource comprises receiving all repetition (s) of the first PUCCH resource associated with the first spatial relation information according to the new beam.
  • receiving the first PUCCH resource comprises receiving all repetition (s) of the first PUCCH resource according to the second spatial relation information.
  • receiving the first PUCCH resource comprises receiving the first PUCCH resource according to one new beam of the first new beam and the second new beam that is associated with a BFD-RS set where the one spatial relation information is associated.
  • receiving the first PUCCH resource comprises: receiving all repetition (s) of the first PUCCH resource associated with the one spatial relation information associated with the first BFD-RS set according to the first new beam, and receiving all repetition (s) of the first PUCCH resource associated with the other spatial relation information associated with the second BFD-RS set according to the second new beam.
  • receiving the first PUCCH resource comprises receiving all repetition (s) of the first PUCCH resource according to the new beam.
  • an apparatus includes: a non-transitory computer-readable medium having stored thereon computer-executable instructions, a receiving circuitry, a transmitting circuitry, and a processor coupled to the non-transitory computer-readable medium, the receiving circuitry and the transmitting circuitry, wherein the computer-executable instructions, when executed by the processor, cause the apparatus to implement various methods according to any embodiments of the present disclosure.
  • Figure 1 illustrates a schematic diagram of an exemplary wireless communication system according to some embodiments of the present disclosure
  • Figure 2 illustrates a flow chart of an exemplary method performed by a UE according to some embodiments of the present disclosure
  • Figure 3 illustrates a flow chart of an exemplary method performed by a BS according to some embodiments of the present disclosure
  • Figure 4 illustrates an exemplary first MAC CE according to some embodiments of the present disclosure.
  • Figure 5 illustrates an exemplary first MAC CE according to some embodiments of the present disclosure.
  • Figure 6 illustrates a flow chart of an exemplary method according to some embodiments of the present disclosure
  • Figure 7 illustrates a simplified block diagram of an exemplary apparatus according to some embodiments of the present disclosure.
  • Figure 8 illustrates a simplified block diagram of an exemplary apparatus according to some other embodiments of the present disclosure.
  • a BS may be referred to as an access point, an access terminal, a base, a base unit, a macro cell, a Node-B, an enhanced Node-B, an evolved Node B (eNB) , a gNB, a Home Node-B, a relay node, or a device, or described using other terminology used in the art.
  • the BS is generally part of a radio access network that may include a controller communicably coupled to the BS.
  • the BS may be configured with multiple TRPs (or panels) , wherein a TRP can act like a small BS and is used to serve one or more UEs under control of a BS.
  • the TRP may be referred to as different terms.
  • Persons skilled in the art should understand that as the 3GPP and the communication technology develop, the terminologies recited in the specification may change, which should not affect the scope of the present disclosure. It should be understood that the TRP (s) (or panel (s) ) configured for the BS may be transparent to a UE.
  • a UE may include computing devices, such as desktop computers, laptop computers, personal digital assistants (PDAs) , tablet computers, smart televisions (e.g., televisions connected to the Internet) , set-top boxes, game consoles, security systems (including security cameras) , vehicle on-board computers, network devices (e.g., routers, switches, and modems) , or the like.
  • the UE may include a portable wireless communication device, a smart phone, a cellular telephone, a flip phone, a device having a subscriber identity module, a personal computer, a selective call receiver, or any other device that is capable of sending and receiving communication signals on a wireless network.
  • the UE may include wearable devices, such as smart watches, fitness bands, optical head-mounted displays, or the like.
  • the UE may be referred to as a subscriber unit, a mobile, a mobile station, a user, a terminal, a mobile terminal, a wireless terminal, a fixed terminal, a subscriber station, a user terminal, or a device, or described using other terminology used in the art.
  • Figure 1 illustrates a schematic diagram of an exemplary wireless communication system according to some embodiments of the present disclosure.
  • two TRPs are deployed in a cell (e.g., cell1) of a BS to serve a UE (e.g., UE1) . And there is a backhaul between the two TRPs.
  • the UE can be configured with two BFD-RS sets, which are associated with the two TRPs respectively.
  • UE1 and TRP1 are illustrated in Figure 1 for simplicity, it is appreciated that there may be more TRPs and more UEs in the cell1.
  • one or two spatial relation information can be activated for the UE to transmit a PUCCH resource.
  • the UE does not know with which TRP each of the one or two spatial relation information is associated.
  • the present disclosure provides some solutions to set up an association between the one or two spatial relation information and at least one TRP, which will be described below.
  • Figure 2 illustrates a flow chart of an exemplary method 200 performed by a UE according to some embodiments of the present disclosure. It should be understood that the method 200 can also be performed by other device (s) having similar functionality.
  • the UE receives configuration information for a first BFD-RS set and a second BFD-RS set for a serving cell.
  • the first BFD-RS set has a lower index than the second BFD-RS set in the serving cell. That is, the first BFD-RS set is BFD-RS set 0 and the second BFD-RS set is BFD-RS set 1.
  • the first BFD-RS set is associated with a first TRP (e.g., TRP0)
  • the second BFD-RS set is associated with a second TRP (e.g., TRP1) .
  • the UE receives a first MAC CE for activating at least one spatial relation information for a PUCCH resource in the serving cell, wherein the first MAC CE further indicates an association between at least one BFD-RS set of the first BFD-RS set and the second BFD-RS set and the at least one spatial relationship information activated for the PUCCH resource.
  • the association between the at least one spatial relation information and at least one TRP of the two TRPs is set up.
  • Figure 3 illustrates a flow chart of an exemplary method 300 performed by a BS (e.g., a BS covering cell1) according to some embodiments of the present disclosure, which correspond to method 200 performed by a UE. It should be understood that the method 300 can also be performed by other device (s) having similar functionality.
  • a BS e.g., a BS covering cell1
  • the BS transmits configuration information for a first BFD-RS set and a second BFD-RS set for a serving cell.
  • the BS transmits a first MAC CE for activating at least one spatial relation information for a PUCCH resource in the serving cell, wherein the first MAC CE further indicates an association between at least one BFD-RS set of the first BFD-RS set and the second BFD-RS set and the at least one spatial relationship information.
  • the first MAC CE transmitted from the BS to the UE may include a one-bit field for indicating the association between the at least one BFD-RS set and the at least one spatial relationship information.
  • the one-bit field may indicate that the one spatial relation information is associated with the first BFD-RS set or the second BFD-RS set. For example, the one-bit field being 0 indicates that the activated spatial relation information is associated with the first BFD-RS set, and the one-bit field being 1 indicates that the activated spatial relation information is associated with the second BFD-RS set.
  • the one-bit field may indicate that the first spatial relation information is associated with one BFD-RS set of the first BFD-RS set and the second BFD-RS set, and the second spatial relation information is associated with the other BFD-RS set of the first BFD-RS set and the second BFD-RS set.
  • the one-bit field being 0 indicates that the first spatial relation information is associated with the first BFD-RS set, and the second spatial relation information is associated with the second BFD-RS set; and the one-bit field being 1 indicates that the first spatial relation information is associated with the second BFD-RS set, and the second spatial relation information is associated with the first BFD-RS set.
  • Figure 4 illustrates an example for the first MAC CE according to some embodiments of the present disclosure.
  • the first MAC CE is a PUCCH spatial relation information activation/deactivation MAC CE identified by a MAC subheader with logical channel identifier (LCID) (e.g., as specified in TS 38.212) .
  • This MAC CE can activate one or two spatial relation information from up to eight spatial relation information for a specific PUCCH resource.
  • the "Serving Cell ID" field indicates an identity of a serving cell (e.g., cell1) for which the first MAC CE applies, and the length of this field is 5 bits.
  • the "BWP ID” field indicates an uplink (UL) bandwidth part (BWP) for which the first MAC CE applies as the codepoint of the DCI bandwidth part indicator field, and the length of this field is 2 bits.
  • the "PUCCH Resource ID” field contains an identifier (ID) of the specific PUCCH resource, which is identified by PUCCH-ResourceId (e.g., as specified in TS 38.331) , and the length of this field is 7 bits.
  • There are eight “Si” fields (i.e., i 0 ⁇ 7) in the first MAC CE, each corresponding to a spatial relation information.
  • PUCCH-Config in which the PUCCH Resource ID is configured, there is a PUCCH spatial relation information with PUCCH-SpatialRelationInfoId (e.g., as specified in TS 38.331) , configured for the uplink bandwidth part indicated by the "BWP ID" field, the "Si" field indicates the activation status of the PUCCH spatial relation information with PUCCH-SpatialRelationInfoId equal to i + 1; otherwise, the MAC entity shall ignore this field.
  • the "Si" field being 1 indicates that the PUCCH spatial relation information with PUCCH-SpatialRelationInfoId equal to i + 1 shall be activated, and the "Si" field being 0 indicates that the PUCCH spatial relation information with PUCCH-SpatialRelationInfoId equal to i + 1 shall be deactivated, herein i is an integer not less than zero.
  • the one-bit field for indicating the association between the at least one BFD-RS set and the at least one spatial relationship information may be any one of the two reserved bits.
  • first MAC CE and the one-bit field are not limited to the exemplary MAC CE shown in Figure 4.
  • the PUCCH resource may be included in at least one PUCCH resource group.
  • the first MAC CE transmitted from the BS to the UE may activate a spatial relation information for a PUCCH resource group, which means that the PUCCH resource group is associated with the spatial relation information and the spatial relation information is activated for each PUCCH resource in the PUCCH resource group.
  • the first MAC CE may include at least one one-bit field.
  • Each one-bit field may be associated with one PUCCH resource group to indicate that the spatial relationship information associated with or activated for the PUCCH resource group is associated with one BFD-RS set of the first BFD-RS set and the second BFD-RS set.
  • the one-bit field associated with the PUCCH resource group being 0 indicates that the spatial relation information is associated with the first BFD-RS set
  • the one-bit field associated with the PUCCH resource group being 1 indicates that the spatial relation information is associated with the second BFD-RS set.
  • the one-bit field associated with the first PUCCH resource group and the one-bit field associated with the first PUCCH resource group may be different, i.e., one one-bit field is 0 (indicating that the spatial relation information activated for the associated PUCCH resource group is associated with the first BFD-RS set) and the other one-bit field is 1 (indicating that the spatial relation information activated for the associated PUCCH resource group is associated with the second BFD-RS set) .
  • a PUCCH resource is included in at least one PUCCH resource group via configuration in resourceGroupToAddModList-r16.
  • Figure 5 illustrates an example for the first MAC CE according to some embodiments of the present disclosure
  • the first MAC CE is an enhanced PUCCH spatial relation information activation/deactivation MAC CE identified by a MAC subheader with eLCID (e.g., as specified in TS 38.212) , which may activate spatial relation information for PUCCH resource group (s) .
  • eLCID e.g., as specified in TS 38.212
  • the "Serving Cell ID” field and the "BWP ID” field may have the same meanings as those shown in Figure 4.
  • the "PUCCH Resource ID” field contains an identifier of a PUCCH resource identified by PUCCH-ResourceId (e.g., as specified in TS 38.331) , which is to be activated with a spatial relation information indicated by the "Spatial Relation Info ID” field in the subsequent octet, and the length of the "PUCCH Resource ID” field is 7 bits.
  • PUCCH resource indicated by the "PUCCH Resource ID" field is included in a PUCCH resource group (e.g., configured via resourceGroupToAddModList-r16 as specified in TS 38.331) of the indicated UL BWP, no other PUCCH resources within the same PUCCH resource group are indicated in the first MAC CE.
  • This MAC CE applies to all the PUCCH resources in the PUCCH resource group. For each PUCCH resource group, there is three reserved bits (marked as "R" and circled) .
  • the one-bit field associated with a PUCCH resource group may be any one of the three reserved bits for the PUCCH resource group.
  • a PUCCH resource group index may occupy one or two of the remaining reserved bits for the PUCCH resource group when at least one PUCCH resource ID in the first MAC CE is included in more than one PUCCH resource group.
  • the first MAC CE and the one-bit field is not limited to the exemplary MAC CE shown in Figure 5.
  • each BFD-RS set is associated with one TRP
  • two NBI-RS sets may be configured. There is one to one association between each BFD-RS set of the two BFD-RS sets and each NBI-RS set of the two NBI-RS sets.
  • a new beam from its associated NBI-RS set is reported from a MAC CE if the new beam is found or a no new beam indication is reported from the MAC CE if the new beam cannot be found.
  • the beam of the PUCCH resource may be updated.
  • the UE does not know to which TRP that the PUCCH resource is transmitted in a multi-TRP mode.
  • the present disclosure provides solutions to address the above issue.
  • a BFD-RS set being failed means that the radio link quality of all RSs in the BFD-RS set is worse than a configured threshold, and a new beam being found means that the radio link quality of the new beam is larger than another configured threshold.
  • Figure 6 illustrates a flow chart of an exemplary method according to some embodiments of the present disclosure. Although the method is illustrated in a system level by a UE and a BS, persons skilled in the art can understand that the method implemented in the UE and that implemented in the BS can be separately implemented and incorporated by other apparatus with the like functions.
  • the BS transmits, to the UE, configuration information for a first BFD-RS set and a second BFD-RS set for a serving cell.
  • the first BFD-RS set has a lower index than the second BFD-RS set in the serving cell. That is, the first BFD-RS set is BFD-RS set 0 and the second BFD-RS set is BFD-RS set 1.
  • the first BFD-RS set is associated with a first TRP (e.g., TRP0)
  • the second BFD-RS set is associated with a second TRP (e.g., TRP1) .
  • the BS transmits, to the UE, a first MAC CE for activating at least one spatial relation information for a PUCCH resource in the serving cell, wherein the first MAC CE may further indicate an association between at least one BFD-RS set of the first BFD-RS set and the second BFD-RS set and the at least one activated spatial relationship information.
  • the first MAC CE may be the MAC CE shown in figure 4 or figure 5.
  • the UE transmits, to the BS, a first PUSCH including a second MAC CE to indicate the at least one failed BFD-RS set and first information of new beam (s) associated with the at least one failed BFD-RS set.
  • the first information may indicate whether an associated new beam is found, and/or indicate an ID of the associated new beam if it is found.
  • the BS When the BS receives the first PUSCH, in step 640, it transmits, to the UE, a PDCCH with a DCI format for scheduling a second PUSCH, wherein the DCI format indicates a same HARQ process number as that for transmission of the first PUSCH and has a toggled NDI field value.
  • the BS may transmit a confirmation of TRP-specific BFR.
  • the UE may transmit, to the BS, the PUCCH resource or all repetition (s) of the PUCCH resource according to the second MAC CE.
  • the PUCCH resource is transmitted according to the second MAC CE after a pre-defined number of symbols from reception of a last symbol of the PDCCH. In some embodiments, the pre-defined number is 28.
  • the BS may receive the PUCCH resource according to the second MAC CE after a pre-defined number of symbols from transmission of a last symbol of the PDCCH.
  • the second MAC CE indicates that only the BFD-RS set where the first spatial relation information is associated is failed, and the first information indicates that the UE find a new beam associated with the failed BFD-RS set
  • the UE transmits all repetition (s) of the PUCCH resource associated with the first spatial relation information by using a spatial domain filter corresponding to the new beam and a power determined based on: a pathloss reference RS determined according to the new beam; a P0 value with a lowest index in p0-PUCCH when the failed BFD-RS set is a BFD-RS set with a lower index (i.e., the first BFD-RS set or BFD-RS set 0) or a P0 value with a second lowest index in p0-PUCCH when the failed BFD-RS set is a BFD-RS set with a higher index
  • the BS receives all repetition (s) of the PUCCH resource associated with the first spatial relation information according to the new beam.
  • PUCCH resource 0 is activated with spatial relation information 0 which is associated with BFD-RS set
  • PUCCH resource 1 is activated with spatial relation information 1 which is associated with BFD-RS set 1
  • PUCCH resource 2 is activated with spatial relation information 2 and spatial relation information 3 which are associated with BFD-RS set 1 and BFD-RS set 0 respectively.
  • the closed loop index of PUCCH resource 0 and PUCCH resource 1 is 0 and 1 respectively
  • the closed loop indexes of PUCCH resource 2 are 1 and 0 which are associated with spatial relation information 2 and spatial relation information 3 respectively.
  • the UE When BFD-RS set 0 is failed, and a new beam is found from NBI-RS set 0 associated with BFD-RS set 0, the UE transmits a first PUSCH including a second MAC CE and first information, wherein the second MAC CE indicates the failed BFD-RS set (i.e., BFD-RS set 0) , and the first information indicates the new beam.
  • the BS transmits a confirmation of TRP-specific BFR via a PDCCH.
  • the UE After a pre-defined number of symbols (e.g., 28 symbols) from reception of a last symbol of the PDCCH, the UE transmits PUCCH resource 0 using a spatial domain filter according to the new beam, and using a power determined based on a pathloss reference RS, a P0 value, and a close loop index, wherein the pathloss reference RS is determined according to the new beam, the P0 value is with the lowest index in p0-PUCCH, and the close loop index is 0.
  • a pre-defined number of symbols e.g. 28 symbols
  • the UE transmits repetitions of PUCCH resource 2 associated with spatial relation information 3 using a spatial domain filter according to the new beam, and using a power determined based on a pathloss reference RS, a P0 value, and a close loop index, wherein the pathloss reference RS is determined according to the new beam, the P0 value is with the lowest index in p0-PUCCH, and the closed loop index is 0.
  • the transmission of PUCCH resource 1 and the transmission of repetitions of PUCCH resource 2 associated with spatial relation information 2 are not affected by failure of BFD-RS set 0.
  • the second MAC CE indicates only one failed BFD-RS set where the first spatial relation information is associated, and the first information indicates that no new beam associated with the failed BFD-RS set is found
  • the UE transmits all repetition (s) of the PUCCH resource associated with the first spatial relation information by using a spatial domain filter associated with the second spatial relation information and a power determined based on a power control parameter set associated with the second spatial relation information.
  • the BS receives all repetition (s) of the PUCCH resource according to the second spatial relation information.
  • PUCCH resource 0 is activated with spatial relation information 0 which is associated with BFD-RS set
  • PUCCH resource 1 is activated with spatial relation information 1 which is associated with BFD-RS set 1
  • PUCCH resource 2 is activated with spatial relation information 2 and spatial relation information 3 which are associated with BFD-RS set 1 and BFD-RS set 0 respectively.
  • the UE transmits a first PUSCH including a second MAC CE and first information, wherein the second MAC CE indicates the failed BFD-RS set (i.e., BFD-RS set 1) , and the first information indicates no new beam.
  • the BS transmits a confirmation of TRP-specific BFR via a PDCCH.
  • the UE After a pre-defined number of symbols (e.g., 28 symbols) from reception of a last symbol of the PDCCH, the UE transmits all repetitions of PUCCH resource 2 by using a spatial domain filter associated with spatial relation information 3 and a power determined based on a power control parameter set associated with spatial relation information 3.
  • a pre-defined number of symbols e.g., 28 symbols
  • the second MAC CE indicates that both the first BFD-RS set and the second BFD-RS sets are failed, and the first information indicates that a first new beam associated with the first BFD-RS set and a second new beam associated with the second BFD-RS set are found
  • the UE transmits the PUCCH resource by using a spatial domain filter corresponding to one new beam of the first new beam and the second new beam that is associated with a BFD-RS set where the one spatial relation information is associated, and a power determined based on: a pathloss reference RS determined according to the one new beam; a P0 value with a lowest index in p0-PUCCH when the one spatial relation information is associated with the first BFD-RS set or a P0 value with a second lowest index in p0-PUCCH when the one spatial relation information is associated with the second BFD-RS set
  • the BS receives the PUCCH resource according to the one new beam.
  • the second MAC CE indicates that both the first BFD-RS set and the second BFD-RS set are failed, and the first information indicates a first new beam found for the first BFD-RS set and a second new beam found for the second BFD-RS set
  • the UE transmits all repetition (s) of the PUCCH resource associated with the first spatial relation information by using a spatial domain filter corresponding to the first new beam and a power determined based on: a pathloss reference RS determined according to the first new beam; a P0 value with a lowest index in p0-PUCCH; and a close loop index associated with the first spatial relation information or a close loop index of 0.
  • the UE transmits all repetition (s) of the PUCCH resource associated with the second spatial relation information by using a spatial domain filter corresponding to the second new beam and a power determined based on: a pathloss reference RS determined according to the second new beam; a P0 value with a second lowest index in p0-PUCCH; and a close loop index associated with the second spatial relation information or a close loop index of 0.
  • the BS receives all repetition (s) of the PUCCH resource associated with the first spatial relation information according to the first new beam, and receives all repetition (s) of the PUCCH resource associated with the second spatial relation information according to the second new beam.
  • PUCCH resource 0 is activated with spatial relation information 0 which is associated with BFD-RS set
  • PUCCH resource 1 is activated with spatial relation information 1 which is associated with BFD-RS set 1
  • PUCCH resource 2 is activated with spatial relation information 2 and spatial relation information 3 which are associated with BFD-RS set 1 and BFD-RS set 0 respectively.
  • the UE transmits a first PUSCH including a second MAC CE and first information, wherein the second MAC CE indicates the failed BFD-RS sets (i.e., BFD-RS set 0 and BFD-RS set 1) , and the first information indicates the first new beam and the second new beam.
  • the BS transmits a confirmation of TRP-specific BFR via a PDCCH.
  • the UE After a pre-defined number of symbols (e.g., 28 symbols) from reception of a last symbol of the PDCCH, the UE transmits PUCCH resource 0 by using a spatial domain filter corresponding to the first new beam and using a power determined based on a pathloss reference RS determined according to the first new beam, a P0 value with a lowest index in p0-PUCCH, and a close loop index of 0.
  • a pre-defined number of symbols e.g., 28 symbols
  • the UE transmits PUCCH resource 1 by using a spatial domain filter corresponding to the second new beam and using a power determined based on a pathloss reference RS determined according to the second new beam, a P0 value with a second lowest index in p0-PUCCH, and a close loop index of 1 or 0 according to a predefined rule.
  • the UE transmits all repetition (s) of PUCCH resource 2 associated with spatial relation information 2 by using a spatial domain filter corresponding to the second new beam and using a power determined based on a pathloss reference RS determined according to the second new beam, a P0 value with a second lowest index in p0-PUCCH, and a close loop index of 1 or 0 according to a predefined rule; and the UE transmits all repetition (s) of PUCCH resource 2 associated with spatial relation information 3 by using a spatial domain filter corresponding to the first new beam and using a power determined based on a pathloss reference RS determined according to the first new beam, a P0 value with a lowest index in p0-PUCCH, and a close loop index of 0.
  • the second MAC CE indicates that both the first BFD-RS set and the second BFD-RS set are failed, and the first information indicates that only a new beam associated with one BFD-RS set of the first BFD-RS set and the second BFD-RS set is found
  • the UE transmits all repetition (s) of the PUCCH resource by using a spatial domain filter corresponding to the new beam and by using a power determined based on a pathloss reference RS determined according to the new beam, a P0 value with a lowest index in p0-PUCCH when the one BFD-RS set is the first BFD-RS set or a P0 value with a second lowest index in p0-PUCCH when the one BFD-RS set is the second BFD-RS set, and a close loop index of 0.
  • the BS receives all repetition (s) of the PUCCH resource according to the new beam.
  • PUCCH resource 0 is activated with spatial relation information 0 which is associated with BFD-RS set
  • PUCCH resource 1 is activated with spatial relation information 1 which is associated with BFD-RS set 1
  • PUCCH resource 2 is activated with spatial relation information 2 and spatial relation information 3 which are associated with BFD-RS set 1 and BFD-RS set 0 respectively.
  • the UE transmits PUCCH resource 0, PUCCH resource 1, and PUCCH resource 2 by using a spatial domain filter corresponding to the new beam and by using a power determined based on a pathloss reference RS determined according to the new beam, a P0 value with a lowest index in p0-PUCCH, and a close loop index of 0.
  • the present disclosure is not limited to the various provided methods and signaling sequences, and these methods and signaling sequences may be reasonably and flexibly adjusted or changed.
  • Figure 7 illustrates a simplified block diagram of an exemplary apparatus 900 according to some embodiments of the present disclosure.
  • the apparatus 900 may be or include at least a part of a UE or similar device.
  • the apparatus 900 may include at least one receiving circuitry 910, at least one processor 920, at least one non-transitory computer-readable medium 930 with computer-executable instructions 940 stored thereon, and at least one transmitting circuitry 950.
  • the at least one receiving circuitry 910, the at least one non-transitory computer-readable medium 930, and the at least one transmitting circuitry 950 may be coupled to the at least one processor 920.
  • the at least one receiving circuitry 910, the at least one non-transitory computer-readable medium 930, the at least one transmitting circuitry 950, and the at least one processor 920 may be coupled to each other via one or more local buses.
  • the at least one receiving circuitry 910 and the at least one transmitting circuitry 950 may be configured for wireless communication.
  • the at least one receiving circuitry 910 and the at least one transmitting circuitry 950 can be integrated into at least one transceiver (e.g., wireless transceiver) .
  • the apparatus 900 may further include a memory and/or other components.
  • the computer-executable instructions 940 may be configured to be executable by the at least one processor 920 to cause the apparatus 900 at least to perform, with the at least one receiving circuitry 910, the at least one transmitting circuitry 950, and the at least one processor 920, any one of the various methods described above which are performed by a UE according to the present disclosure.
  • the computer-executable instructions 940 when executed by the at least one processor 920, may cause the apparatus 900 to: receive, with the at least one receiving circuitry 910, configuration information for a first BFD-RS set and a second BFD-RS set for a serving cell; receive, with the at least one receiving circuitry 910, a first MAC CE for activating at least one spatial relation information for a PUCCH resource in the serving cell, wherein the first MAC CE further indicates an association between at least one BFD-RS set of the first BFD-RS set and the second BFD-RS set and the at least one spatial relationship information.
  • Figure 8 illustrates a simplified block diagram of an exemplary apparatus 1000 according to some embodiments of the present disclosure.
  • the apparatus 1000 may be or include at least a part of a BS or similar device.
  • the apparatus 1000 may include at least one receiving circuitry 1010, at least one processor 1020, at least one non-transitory computer-readable medium 1030 with computer-executable instructions 1040 stored thereon, and at least one transmitting circuitry 1050.
  • the at least one receiving circuitry 1010, the at least one non-transitory computer-readable medium 1030, and the at least one transmitting circuitry 1050 may be coupled to the at least one processor 1020.
  • the at least one receiving circuitry 1010, the at least one non-transitory computer-readable medium 1030, the at least one transmitting circuitry 1050, and the at least one processor 1020 may be coupled to each other via one or more local buses.
  • the at least one receiving circuitry 1010 and the at least one transmitting circuitry 1050 may be configured for wireless communication.
  • the at least one receiving circuitry 1010 and the at least one transmitting circuitry 1050 can be integrated into at least one transceiver (e.g., wireless transceiver) .
  • the apparatus 1000 may further include a memory and/or other components.
  • the computer-executable instructions 1040 may be configured to be executable by the at least one processor 1020 to cause the apparatus 1000 at least to perform, with the at least one receiving circuitry 1010, the at least one transmitting circuitry 1050, and the at least one processor 1020, any one of the various methods described above which are performed by a BS according to the present disclosure.
  • the computer-executable instructions 1040 when executed by the at least one processor 1020, may cause the apparatus 1000 to: transmit, with the at least one transmitting circuitry 1050, configuration information for a first BFD-RS set and a second BFD-RS set for a serving cell; transmit, with the at least one transmitting circuitry 1050, a first MAC CE for activating at least one spatial relation information for a PUCCH resource in the serving cell, wherein the first MAC CE further indicates an association between at least one BFD-RS set of the first BFD-RS set and the second BFD-RS set and the at least one spatial relationship information.
  • the at least one processor 920 or 1020 may include, but is not limited to, at least one hardware processor, including at least one microprocessor such as a CPU, a portion of at least one hardware processor, and any other suitable dedicated processor such as those developed based on for example Field Programmable Gate Array (FPGA) and Application Specific Integrated Circuit (ASIC) . Further, the at least one processor 920 or 1020 may also include at least one other circuitry or element not shown in Figure 7 or Figure 8.
  • FPGA Field Programmable Gate Array
  • ASIC Application Specific Integrated Circuit
  • the at least one non-transitory computer-readable medium 930 or 1030 may include at least one storage medium in various forms, such as a volatile memory and/or a non-volatile memory.
  • the volatile memory may include, but is not limited to, for example, an RAM, a cache, and so on.
  • the non-volatile memory may include, but is not limited to, for example, an ROM, a hard disk, a flash memory, and so on.
  • the at least non-transitory computer-readable medium 930 or 1030 may include, but is not limited to, an electric, a magnetic, an optical, an electromagnetic, an infrared, or a semiconductor system, apparatus, or device or any combination of the above.
  • the example apparatus 900 or 1000 may also include at least one other circuitry, element, and interface, for example antenna element, and the like.
  • the circuitries, parts, elements, and interfaces in the example apparatus 900 or 1000 may be coupled together via any suitable connections including, but not limited to, buses, crossbars, wiring and/or wireless lines, in any suitable ways, for example electrically, magnetically, optically, electromagnetically, and the like.
  • controllers, flowcharts, and modules may also be implemented on a general purpose or special purpose computer, a programmed microprocessor or microcontroller and peripheral integrated circuit elements, an integrated circuit, a hardware electronic or logic circuit such as a discrete element circuit, a programmable logic device, or the like.
  • any device that has a finite state machine capable of implementing the flowcharts shown in the figures may be used to implement the processing functions of the present disclosure.

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

Abstract

Sont divulgués des procédés et des appareils pour une transmission de canal de commande de liaison montante physique (PUCCH). Un mode de réalisation de la présente demande concerne un procédé mis en œuvre par un équipement utilisateur. Le procédé consiste à : recevoir des informations de configuration pour un premier ensemble de signal de référence de détection de défaillance de faisceau (BFD-RS) et un deuxième ensemble BFD-RS pour une cellule de desserte, le premier ensemble BFD-RS ayant un indice inférieur au deuxième ensemble BFD-RS dans la cellule de desserte, et recevoir un premier élément de commande (CE) de commande d'accès au support (MAC) pour activer au moins une information de relation spatiale pour une première ressource PUCCH dans la cellule de desserte, le premier CE MAC indiquant en outre une association entre au moins un ensemble BFD-RS du premier ensemble BFD-RS et du deuxième ensemble BFD-RS et la ou les informations de relation spatiale.
PCT/CN2021/110876 2021-08-05 2021-08-05 Procédés et appareils de transmission de canal de commande de liaison montante physique Ceased WO2023010413A1 (fr)

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Citations (3)

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CN110418357A (zh) * 2018-04-26 2019-11-05 华为技术有限公司 通信方法和装置
CN111278122A (zh) * 2019-01-25 2020-06-12 维沃移动通信有限公司 波束失败恢复方法、处理方法、终端及网络侧设备
US20210058805A1 (en) * 2019-08-20 2021-02-25 Samsung Electronics Co., Ltd. Method and apparatus for indicating beam failure recovery operation of terminal in wireless communication system

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CN110418357A (zh) * 2018-04-26 2019-11-05 华为技术有限公司 通信方法和装置
CN111278122A (zh) * 2019-01-25 2020-06-12 维沃移动通信有限公司 波束失败恢复方法、处理方法、终端及网络侧设备
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