User equipment procedures for event-triggered beam information reporting
UE-initiated beam reporting procedures enable efficient and adaptive beam information transmission in wireless networks, addressing the lack of event-triggered reporting mechanisms in existing systems and enhancing network performance.
Patent Information
- Application Number
- PCT/CN2024/105631
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-10-30
AI Technical Summary
Existing wireless communication systems lack efficient mechanisms for user equipment (UE) to initiate beam information reporting based on event triggers, which is crucial for optimizing network performance in 5G and beyond.
Implementing UE-initiated beam reporting procedures, including transmission and triggering protocols for UE-initiated beam reports (UEIBR) and notifications (UEIBRN), which allow the UE to determine and transmit beam information based on configured conditions and events, using uplink channel resources and reference signal measurements.
Enhances network communication efficiency by enabling timely and optimized beam reporting, improving network performance and adaptability to changing conditions.
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Figure CN2024105631_30102025_PF_FP_ABST
Abstract
Description
USER EQUIPMENT PROCEDURES FOR EVENT-TRIGGERED BEAM INFORMATION REPORTINGTECHNICAL FIELD
[0001] This disclosure is directed generally to digital wireless communications.BACKGROUND
[0002] Mobile telecommunication technologies are moving the world toward an increasingly connected and networked society. In comparison with the existing wireless networks, next generation systems and wireless communication techniques will need to support a much wider range of use-case characteristics and provide a more complex and sophisticated range of access requirements and flexibilities.
[0003] Long-Term Evolution (LTE) is a standard for wireless communication for mobile devices and data terminals developed by 3rd Generation Partnership Project (3GPP) . LTE Advanced (LTE-A) is a wireless communication standard that enhances the LTE standard. The 5th generation of wireless system, known as 5G, advances the LTE and LTE-A wireless standards and is committed to supporting higher data-rates, large number of connections, ultra-low latency, high reliability and other emerging business needs.SUMMARY
[0004] User equipment (UE) procedures for event-triggered beam information reporting are described in this patent document. The disclosed embodiments support beam information reporting triggered by event (and referred to as a UE-initiated beam report) by describing the transmission and triggering procedures for a UE-initiated beam report (UEIBR) and / or a UE-initiated beam report notification (UEIBRN) , which improves networked communications.
[0005] In an example aspect, a wireless communication method includes receiving, by a wireless device from a network node, a report configuration comprising information related to a transmission of a report initiated by the wireless device in an uplink channel resource, determining, based on the report configuration, whether a condition associated with the transmission of the report initiated by the wireless device has been fulfilled, and transmitting, to the network node based on the condition being fulfilled, the report in the uplink channel resource. In this example, the report configuration is associated with a reference signal resource set and a trigger event, and the condition is associated with the trigger event.
[0006] In another example aspect, a wireless communication method includes transmitting, by a network node to a wireless device, a report configuration comprising information related to a transmission of a report initiated by the wireless device in an uplink channel resource, and receiving, from the wireless device, the report in the uplink channel resource. In this example, the report configuration is associated with a reference signal resource set and a trigger event, and the wireless device is configured to transmit the report upon determining that a condition associated with the transmission of the report initiated by the wireless device has been fulfilled.
[0007] In yet another example aspect, the above-described methods are embodied in the form of processor-executable code and stored in a non-transitory computer-readable storage medium. The code included in the computer readable storage medium when executed by a processor, causes the processor to implement the methods described in this patent document.
[0008] In yet another example aspect, a device that is configured or operable to perform the above-described methods is disclosed.
[0009] The above and other aspects and their implementations are described in greater detail in the drawings, the descriptions, and the claims.
[0010] BRIEF DESCRIPTION OF THE DRAWING
[0011] FIG. 1 shows an example association between an event triggering instance indication and a user equipment (UE) -initiated beam report (UEIBR) configuration.
[0012] FIGS. 2-9 show timing diagrams for example methods for UE transmissions in an uplink channel when a UE-initiated beam report notification (UEIBRN) or a UE-initiated beam report (UEIBR) is triggered.
[0013] FIGS. 10 and 11 show flowcharts for example wireless communication methods.
[0014] FIG. 12 shows a block diagram of an example hardware platform that may be a part of a network device or a communication device.
[0015] FIG. 13 shows an example of wireless communication including a base station (BS) and user equipment (UE) based on some implementations of the disclosed technology.DETAILED DESCRIPTION
[0016] The channel state information (CSI) report in a 5G NR system is critical in assisting the network to provide a better transmission configuration to a UE. In the 5G NR system, the CSI report can be configured to be aperiodic, semi-persistent, or periodic. A UE can be configured with a report quantity for a CSI Report to transmit one or more of a channel quality indicator (CQI) , a precoding matrix indicator (PMI) , a rank indicator (RI) , a CSI-RS Resource Indicator (CRI) , a synchronization signal block resource indicator (SSBRI) , a signal-to-noise and interference ratio (SINR) , or a reference signal received power (RSRP) in the CSI report. In some examples, the UE calculates the corresponding CSI parameter based on the configured report quantity and the corresponding CSI resources for measurement.
[0017] For a legacy beam failure recovery procedure, when a beam failure instance indication for a beam failure detection reference signal (BFD-RS) set is provided by lower layers of a UE, the related counter is incremented by one. When the counter reaches a maximum count value configured for the BFD-RS set, the beam failure recovery procedure for the BFD-RS set is triggered.
[0018] For the legacy measurement reporting procedure in higher layers of the UE (e.g., Layer 3) , the evaluation of the condition of a trigger event is based on a filtered measurement result, wherein the filtered measurement result is obtained in Layer 3 based on multiple measurement results within a time duration configured by time To Trigger.
[0019] In these legacy procedures, uplink control information (UCI) types include hybrid automatic request (HARQ) -acknowledgement (ACK) information, a scheduling request (SR) , a link recovery request (LRR) , and CSI. UCI bits include HARQ-ACK information bits, if any; SR information bits, if any; LRR information bits, if any; and CSI bits, if any. Normally SR is applicable for SR and / or for LRR in NR systems. The UE can be configured or scheduled by a network device with uplink resources to carry UCI bits.
[0020] The UE transmits a UE-initiated beam report (UEIBR) when the UE evaluates that a condition of a trigger event associated with the UEIBR is fulfilled. However, this is preceded by the UE first transmitting an uplink resource carrying a UE-initiated beam report notification (UEIBRN) information to indicate to the network device that a UEIBR is triggered by UE, and then the UE transmits another uplink resource carrying the UEIBR.
[0021] The example headings for the various sections below are used to facilitate the understanding of the disclosed subject matter and do not limit the scope of the claimed subject matter in any way. Accordingly, one or more features of one example section can be combined with one or more features of another example section. Furthermore, 5G terminology is used for the sake of clarity of explanation, but the techniques disclosed in the present document are not limited to 5G technology only, and may be used in wireless systems that implemented other protocols, e.g., 6G technology and systems.
[0022] 1 Introduction and overview
[0023] In order to support beam information reporting triggered by events, embodiments of the disclosed technology include transmission procedures and triggering procedure for a UE-initiated beam report notification (UEIBRN) or a UE-initiated beam report (UEIBR) . These embodiments include:
[0024] –UE procedures for determining the triggering of a UEIBR, and in which the UE behavior for a counter, a timer, and / or conditions for triggering the transmission of a UEIBRN or a UEIBR is specified.
[0025] –UE procedures for transmitting a UEIBRN in an uplink channel resource in response to the UEIBRN transmission being triggered.
[0026] –UE procedures for determining valid transmission occasions for the transmission of UCI containing UEIBR information.
[0027] –UE procedures for transmitting a UEIBR in a valid transmission occasion for the UEIBR transmission in response to the UEIBR transmission being triggered.
[0028] In this patent document, the following terms and definitions are used.
[0029] –UCI containing UE-initiated beam report information (UCI-UEIBR) includes a L1-RSRP and / or L1-SINR report associated with a trigger event or a channel state information (CSI) report associated with a trigger event.
[0030] –a UE-initiated beam report notification (UEIBRN) comprises a Scheduling Request (SR) associated with a UEIBR configuration or a UCI type for UCI-UEIBR notification.
[0031] –a reference signal comprises a Synchronization Signal Block (SSB) or a CSI-Reference Signal (RS) .
[0032] –an uplink channel comprises a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH) .
[0033] –a cell comprises a serving cell, a physical cell, a candidate cell, a neighbor cell, or a carrier component.
[0034] –a transmission occasion for an uplink channel transmission is defined by a time-domain resource and / or a frequency-domain resource.
[0035] 2 UEI beam reporting when triggered by counting event trigger instances
[0036] In some embodiments, UE receives a configuration (e.g., a UEIBR configuration) indicating UE to transmit an uplink control information containing UE initiated beam report (UCI-UEIBR) . In some examples, the configuration indicates the UE is to transmit the UCI-UEIBR on an uplink channel resource scheduled or activated by a Physical Downlink Control Channel (PDCCH) , i.e., referred to as mode A. In other examples, the configuration indicates the UE is to transmit the UCI-UEIBR on an uplink channel resource configured for the UEIBR configuration, i.e., referred to as mode B. In these examples, the configuration is associated with a reference signal resource set for measurement and a trigger event for evaluation.
[0037] In some embodiments, UE determines an event triggering instance indication by evaluating or detecting that a condition associated with a trigger event is satisfied or fulfilled. In some examples, the UE evaluating or detecting the condition is based on a measurement result (e.g., L1-RSRP or L1-SINR) of a reference signal which is associated with a transmission parameter (e.g., a beam, a TCI state, or a reference signal resource set) . The transmission parameter is determined based on the UEIBR configuration (e.g., a UEIBR configuration, or a CSI report configuration associated with a trigger event) associated with the event triggering instance indication. For example, the UEIBR configuration configures a reference signal resource set, or the UEIBR configuration is associated with a trigger event using a specific beam or TCI state for evaluation.
[0038] In some embodiments, a trigger event is associated with the condition that ‘aquality of at least one new beam, such as L1-RSRP, becomes a threshold value better than the current beam. ’ Herein, the current beam is associated with an indicated TCI state of a UE and the new beam is associated with a reference signal resource set configured to the UE. The UE determines an event triggering instance indication when the UE evaluates or detects that the condition is satisfied or fulfilled for a measurement result corresponding to the current beam and new beam.
[0039] In some embodiments, the UE is configured with a timer for event triggering evaluation or detection for a UEIBR configuration, a cell, or a UE.
[0040] In some embodiments, the UE is configured with a maximum count value for event triggering evaluation or detection for a reference signal resource set of a UEIBR configuration, a UEIBR configuration, a cell, or a UE.
[0041] FIG. 1 shows an example association between an event triggering instance indication and a user equipment (UE) -initiated beam report (UEIBR) configuration. As shown therein, a UEIBR configuration is associated with a counter and a timer according to a network configuration, and an event triggering instance indication is determined by a condition evaluated based on measurement results which are determined based on reference signals. Herein, the reference signals are associated with a reference signal resource set configured for the UEIBR configuration and / or associated with a beam / TCI state / etc., and the beam / TCI state is determined based on the trigger event or UEIBR configuration.
[0042] In some embodiments, when the UE determines an event triggering instance indication associated with a UEIBR configuration, the UE performs at least one of the following:
[0043] (1) start or restart a timer associated with the event triggering instance indication;
[0044] (2) increment a counter associated with the event triggering instance indication by 1, with the counter having been initially set to 0; or
[0045] (3) trigger a UEIBR associated with the event triggering instance indication and / or trigger a UEIBRN associated with the UEIBR configuration in response to one or both of:
[0046] (a) a value of the counter associated with the event triggering instance indication being greater than or equal to the maximum count value associated with the event triggering instance indication, or
[0047] (b) a UEIBR associated with the same event triggering instance indication having not been triggered or having been canceled.
[0048] In some embodiments, each of a counter, a timer, and a UEIBR is associated with a UEIBR configuration, and the UE determines to set the value of a counter to 0 (e.g., the initial value) , stop a timer, or cancel a UEIBR in response to at least one of the following conditions:
[0049] (1) the timer expiring;
[0050] (2) UE receiving a reconfiguration of the timer, the maximum count value of event triggering instances for evaluation or detection, a reference signal resource set associated with the UEIBR configuration, or information (e.g., a threshold value) of a trigger event associated with the UEIBR configuration;
[0051] (3) UE receiving a signaling (e.g., PDCCH or Medium Access Control (MAC) Control Element (CE) ) indicative of TCI state update, e.g., the signaling indicates UE to update the activated TCI states or the indicated TCI state;
[0052] (4) UE receiving a signaling (e.g., MAC CE) for deactivation of UEIBRs, where the signaling indicates UE to cancel a UEIBR associated with a UEIBR configuration;
[0053] (5) reference signals for the evaluation of a trigger event associated with the UEIBR configuration being changed;
[0054] (6) UE transmitting UCI-UEIBR information associated with the UEIBR configuration on an uplink channel resource;
[0055] (7) the number of transmissions of UCI-UEIBR information associated with the UEIBR configuration being greater than or equal to the maximum value (and further detailed in Section 5) ;
[0056] (8) UE receiving a signaling indicative of an ACK for a transmission of UCI-UEIBR information associated with the UEIBR configuration;
[0057] (9) UE receiving a PDCCH addressed to Cell Radio Network Temporary Identifier (C-RNTI) and indicating an uplink grant for a new transmission for the HARQ process used for transmission of a Uplink Shared Channel (UL-SCH) , and wherein the UL-SCH is transmitted by multiplexing UCI-UEIBR information associated with the UEIBR configuration with the UL-SCH. Herein, the UEIBR configuration at least indicates mode A;
[0058] (10) UE receiving a PDCCH indicating a special field for deactivation of UEIBR. In an example, the PDCCH indicates a trigger state associated with the UEIBR configuration, and UE cancels the UEIBR upon receiving the PDCCH;
[0059] (11) UE receiving a PDCCH without a Downlink (DL) assignment and the PDCCH indicates a TCI state associated with one or more reference signals associated with the reference signal resource set configured for the UEIBR configuration. Herein, for the PDCCH without the DL assignment, the Redundancy Version (RV) field is set to all ones, the Modulation and Coding Scheme (MCS) field is set to all ones, the New Data Indication (NDI) field is set to zero, and all zeros or all ones are set to the Frequency-Domain Resource Assignment (FDRA) field based on a corresponding FDRA type;
[0060] (12) UE receiving a PDCCH addressed to C-RNTI or a RNTI specific to UEIBR and that indicates special values for one or more special fields in the PDCCH. Herein, indicating the special values for the one or more special fields includes at least one of: a HARQ-ACK process number set to all zeros, an RV field set to all zeros, an MCS field set to all ones, or a CSI request field is set to all zeroes or all ones; or
[0061] (13) UE not receiving a PDCCH addressed to C-RNTI or CS-RNTI, and that indicates an uplink grant for a retransmission for the HARQ process for transmission of a UL-SCH, and where the UL-SCH is transmitted by multiplexing UCI-UEIBR information associated with the UEIBR configuration with the UL-SCH.
[0062] In some embodiments, UE cancels a triggered UEIBR associated with a UEIBR configuration in response to at least one of the following conditions:
[0063] (1) UE transmitting a UCI-UEIBR associated with the triggered UEIBR on an uplink channel resource;
[0064] (2) UE transmitting a UCI-UEIBR associated with another UEIBR configuration on an uplink channel resource, and the another UEIBR configuration being associated with a same of at least one of: cell index, trigger event, or reference signal resource set, as the UEIBR configuration; or
[0065] (3) the number of UCI-UEIBR transmissions is greater than or equal to the maximum value configured for the UEIBR configuration (and further detailed in Section 5) .
[0066] In this patent document, a UEIBR being triggered is equivalent to a UEIBR that has been triggered and not canceled. A UEIBR being triggered is equivalent to a transmission of a UCI-UEIBR being triggered. A UEIBR being canceled is equivalent to a transmission of a UCI-UEIBR being canceled.
[0067] 3 UE transmitting an uplink channel carrying UEIBRN information
[0068] In some embodiments, a UE receives a UEIBRN configuration indicating a periodicity value and / or an offset value for the uplink channel transmission for UEIBRN transmission. In some examples, UE determines one or more transmission occasions for transmission of a UEIBRN in uplink channel resources based the periodicity value and / or offset value. In other examples, UE determines or considers a transmission occasion (e.g., the one or more transmission occasions determined based on the periodicity value and / or the offset value) for transmission of the UEIBRN is valid based on a cell-specific time division duplex (TDD) uplink and downlink configuration indicating downlink, uplink, or flexible symbols for the UE.
[0069] In some embodiments, UE determines that an uplink channel resource or a transmission occasion for transmission of the UEIBRN is invalid when the uplink channel resource or the uplink channel transmission occasion overlaps with a PUCCH resource corresponding to a SR configuration for beam failure recovery.
[0070] In some embodiments, a UE is configured with a timer or a maximum number of transmissions for UEIBRN transmission corresponding to a UEIBRN configuration. A counter is associated with the UEIBRN configuration and its value is initially set to 0. As used herein, and without an explicit statement to the contrary, the timer in this section refers to the timer for UEIBRN transmission, and the counter in this section refers to the counter associated with a UEIRBN configuration. Herein, the UEIBRN configuration is associated with a UEIBR configuration.
[0071] In some embodiments, triggering a UEIBRN is equivalent to triggering a transmission of a UEIBRN. In response to triggering the UEIBRN, UE transmits the UEIBRN information on a valid uplink channel resource or a valid transmission occasion of the uplink channel resource. Herein, UE transmitting the UEIBRN information comprises UE transmitting the uplink channel resource, UE transmitting a positive UEIBRN on the uplink channel resource, or UE transmitting UEIBRN information with a value ‘1’ on the uplink channel resource. In response to a UEIBRN not being triggered or being canceled, UE does not transmit the uplink channel resource or UE transmits a negative UEIBRN or UEIBRN information with a value ‘0’ on the uplink channel resource.
[0072] In some embodiments, a UEIBRN being pending is equivalent to the UEIBRN being triggered and having not been canceled.
[0073] In some embodiments, UE sets the value of the counter to an initial value (e.g., zero) when a UEIBRN is triggered and / or another UEIBRN associated with the same UEIBRN configuration as the UEIBRN is not triggered.
[0074] In some embodiments, a timer or a counter is associated with a UEIBRN configuration or a UEIBR configuration, and UE starts or restarts the timer or increments the counter by 1 in response to at least one of the following conditions:
[0075] (1) a UEIBRN associated with the UEIBRN configuration being triggered;
[0076] (2) a valid uplink channel resource or a valid transmission occasion of uplink channel resource configured for the UEIBRN transmission corresponding to the UEIBRN configuration being present or available;
[0077] (3) the timer not running, having been expired, or having been stopped at the time of the UEIBRN transmission;
[0078] (4) the value of the counter being less than or equal to the maximum number of transmissions for UEIBRN transmission; or
[0079] (5) UE transmitting an uplink channel resource carrying (a) the UEIBRN or (b) UCI-UEIBR corresponding to the UEIBR configuration.
[0080] In some embodiments, UE stops the timer and / or cancels the pending UEIBRN in response to at least one of the following conditions:
[0081] (1) UE transmitting an uplink channel resource carrying UCI-UEIBR corresponding to the UEIBR configuration;
[0082] (2 ) the timer expiring; or
[0083] (3) the value of the counter being greater than or equal to the maximum number of transmissions for UEIBRN transmissions.
[0084] In some examples, and as shown in FIG. 2, UE starts the timer and cancels the pending UEIBRN when UE transmits an uplink channel resource carrying UCI-UEIBR corresponding to the UEIBR configuration. Herein, UE increments the counter (for counting UEIBRN transmissions) by 1 when the timer is not running.
[0085] In some examples, and as shown in FIG. 3, UE starts the timer when the UEIBRN is triggered. Then, UE stops the timer and cancels the pending UEIBRN when UE transmits an uplink channel resource carrying UCI-UEIBR corresponding to the UEIBR configuration. Herein, UE increments the counter by 1 for every UEIBRN transmission when the timer is running and the UEIBRN is triggered.
[0086] In some examples, and as shown in FIG. 4, UE starts the timer when the UEIBRN is triggered. Then, UE stops the timer and cancels the pending UEIBRN when the value of the counter is equal to the maximum count value.
[0087] In some examples, and as shown in FIG. 5, UE starts the timer when the timer is not running and transmits UCI-UEIBR on an uplink channel resource. Then, UE cancels the UEIBR and / or stops the timer when the value of the counter is equal to the maximum count value.
[0088] In some examples, and as shown in FIGS. 6 and 7, UE transmits a UEIBRN or positive UEIBRN on a corresponding transmission occasion (e.g., the first transmission occasion on the left in FIG. 6) and UE starts the timer for a UEIBRN transmission when the UEIBRN is triggered or the UEIBR is triggered and the timer is not running. While the timer is running and has not yet expired, UE does not transmit a UEIBRN or a positive UEIBRN on the corresponding transmission occasions. UE cancels the triggered UEIBR or UEIBRN when the timer expires (e.g., as shown in FIG. 6) or when UE transmits a UCI-UEIBR on a corresponding uplink channel resource (e.g., as shown in FIG. 7) .
[0089] In some embodiments, for a pending Scheduling Request (SR) , if the SR is associated with a UEIBRN configuration, a UEIBR configuration, or a UEIBR configuration with mode B, then UE does not release PUCCH resource, does not release SRS, does not clear configured downlink assignments and uplink grants, does not clear PUSCH resources for semi-persistent CSI reporting, or does not initiate a random access procedure when a valid uplink channel resource configured for the SR is absent or when the counter for SR transmissions is not less than the maximum count value.
[0090] 4 UE determining valid transmission occasions for UEIBR information
[0091] In some embodiments, UE is configured with a periodicity value and / or an offset value for the uplink channel resource for UCI-UEIBR transmission, and UE determines one or more transmission occasions for the uplink channel resource based on the periodicity and / or offset value.
[0092] In some embodiments, UE determines or considers a transmission occasion (e.g., the one or more transmission occasions determined based on the periodicity value and / or the offset value) for uplink channel transmission for a UCI-UEIBR transmission is valid when at least one of the following condition is satisfied:
[0093] (1) the transmission occasion being within uplink symbols;
[0094] (2) the transmission occasion not preceding a Synchronization Signal (SS) / Physical Broadcast Channel (PBCH) block in the slot in which the transmission occasion is located;
[0095] (3) the transmission occasion not preceding an uplink channel transmission for UEIBRN transmission in the slot in which the transmission occasion is located, where (1) the UEIBRN and the UCI-UEIBR are associated with the same UEIBR configuration, or (2) the UEIBRN and the UCI-UEIBR are associated with the same UEIBRN configuration but different UEIBR configurations; or
[0096] (4) the transmission occasion starting at least N time units after an uplink channel transmission carrying UEIBRN information or positive UEIBRN. Herein, N is a non-negative integer and is determined based on a configured information, and a time unit comprises a millisecond, an OFDM symbol, or a slot.
[0097] 5 UE transmitting UCI-UEIBR on a scheduled / configured uplink resource
[0098] In some embodiments, UE determines to generate uplink control information (UCI) for a UEIBR configuration and transmit the UCI on a valid transmission occasion of an uplink channel resource in response to a UEIBR being triggered and / or a UEIBRN being triggered.
[0099] In some embodiments, a UE is configured with a timer and / or a maximum number of transmissions for UCI-UEIBR transmissions. Additionally, or alternatively, a counter is associated with the UCI-UEIBR transmission associated with a UEIBR configuration, and its value is initially set to zero. As used herein, and without an explicit statement to the contrary, the timer in this section refers to the timer for UCI-UEIBR transmission, and the counter in this section refers to the counter associated with a UEIBR configuration.
[0100] In some embodiments, UE starts the timer, increments the counter by 1, and / or transmits UCI-UEIBR on the valid uplink channel resource in response to at least one of the following conditions:
[0101] (1) the UEIBR being triggered for a transmission of the UCI-UEIBR;
[0102] (2) a valid uplink channel resource configured for the UCI-UEIBR transmission being present or available;
[0103] (3) the timer not running, having been expired, or having been stopped at the time of the UCI-UEIBR transmission; or
[0104] (4) the value of the counter being less than or equal to the maximum number of transmissions for UCI-UEIBR transmission.
[0105] In some embodiments, a timer, triggering of a UEIBR, or triggering of a UEIBRN is associated with a UEIBR configuration, and UE cancels the UEIBR, cancels the UEIBRN, and / or stops the timer in response to at least one of the following conditions:
[0106] (1) the value of the counter being greater than or equal to the maximum number of transmissions for UCI-UEIBR transmission; or
[0107] (2) the timer expiring.
[0108] In some embodiments, UE cancels a UEIBRN or stops a timer in response to a UEIBR being canceled.
[0109] In some examples, and as shown in FIGS. 8 and 9, UE transmits UEIBRN, starts the timer, or stops the timer as in the examples shown in FIGS. 6 and 7, UE increments Counter2 (for counting UCI-UEIBR transmissions) by 1 when UE transmits a UCI-UEIBR on a corresponding uplink channel resource. UE cancels the triggered UEIBR, cancels the triggered UEIBRN, or sets Counter1 (for counting event triggering instances) to 0 when the value of the Counter2 is equal to its maximum count value or when UE receives a DL signaling (similar to the reconfiguration, signaling and PDCCH as described in the context of conditions (2) , (3) , (4) , (8) , (9) , (10) , (11) and / or (12) in Section 2) .
[0110] 6 Example embodiments and implementations of the disclosed technology
[0111] Embodiments of the disclosed technology provide techniques and methods for the UE transmitting control information for a beam report in response to a report triggering. In some examples, UE procedures for determining the triggering of a UE-initiated beam report, which include the UE behavior for a counter, a timer, or conditions for triggering the transmission of the control information, are specified. In other examples, UE procedures for the UE transmitting a first uplink control information for notification in an uplink channel resource in response to the triggering are described. In yet other examples, UE procedures for the UE determining valid transmission occasions for transmission of the uplink control information are described. In yet other examples, UE procedure for the UE transmitting a second uplink control information for beam information in a valid transmission occasion of an uplink channel resource in response to the triggering are described.
[0112] FIG. 10 shows a flowchart for an example wireless communication method 1000, which can be implemented by a wireless device (e.g., a user equipment (UE) ) . The method 1000 includes, at operation 1010, receiving, by a wireless device from a network node, a report configuration comprising information related to a transmission of a report initiated by the wireless device in an uplink channel resource. In this example, the report configuration is associated with a reference signal resource set and a trigger event.
[0113] The method 1000 includes, at operation 1020, determining, based on the report configuration, whether a condition associated with the transmission of the report initiated by the wireless device has been fulfilled. Herein, the condition is associated with the trigger event.
[0114] The method 1000 includes, at operation 1030, transmitting, to the network node based on the condition being fulfilled, the report in the uplink channel resource.
[0115] FIG. 11 shows a flowchart for an example wireless communication method 1100, which can be implemented by a network node (e.g., a base station, gNodeB (gNB) ) . The method 1100 includes, at operation 1110, transmitting, by a network node to a wireless device, a report configuration comprising information related to a transmission of a report initiated by the wireless device in an uplink channel resource. Herein, the report configuration is associated with a reference signal resource set and a trigger event.
[0116] The method 1100 includes, at operation 1120, receiving, from the wireless device, the report in the uplink channel resource. In this example, the wireless device is configured to transmit the report upon determining that a condition associated with the transmission of the report initiated by the wireless device has been fulfilled.
[0117] The described features can be implemented to further provide one or more of the following technical solutions:
[0118] 1. A wireless communication method (e.g., method 1000) , comprising: receiving, by a wireless device from a network node, a report configuration comprising information related to a transmission of a report initiated by the wireless device in an uplink channel resource, wherein the report configuration is associated with a reference signal resource set and a trigger event; determining, based on the report configuration, whether a condition associated with the transmission of the report initiated by the wireless device has been fulfilled, wherein the condition is associated with the trigger event; and transmitting, to the network node based on the condition being fulfilled, the report in the uplink channel resource.
[0119] 2. A wireless communication method (e.g., method 1100) , comprising: transmitting, by a network node to a wireless device, a report configuration comprising information related to a transmission of a report initiated by the wireless device in an uplink channel resource, wherein the report configuration is associated with a reference signal resource set and a trigger event; and receiving, from the wireless device, the report in the uplink channel resource, wherein the wireless device is configured to transmit the report upon determining that a condition associated with the transmission of the report initiated by the wireless device has been fulfilled.
[0120] 3. The method of solution 1 or 2, wherein the wireless device is configured, as part of determining whether the condition has been fulfilled, to: determine, based on a measurement condition being fulfilled, an instance of the trigger event; and determine, based on counting instances of the trigger event, a report triggering, wherein the report is transmitted in response to the report triggering.
[0121] 4. The method of any of solutions 1 to 3, wherein the report configuration comprises an indication that the uplink channel resource is scheduled or activated by a Physical Downlink Control Channel (PDCCH) .
[0122] 5. The method of any of solutions 1 to 3, wherein the report configuration comprises an indication that the uplink channel resource is configured for the report configuration.
[0123] 6. The method of solution 3, wherein determining whether the measurement condition has been fulfilled is based on a measurement result of a reference signal, and wherein the reference signal is (a) part of the reference signal resource set or (b) associated with a transmission parameter.
[0124] 7. The method of solution 6, wherein the transmission parameter is determined based on the trigger event associated with the report configuration.
[0125] 8. The method of solution 6, wherein the measurement result comprises a Layer 1 (L1) -Reference Signal Received Power (RSRP) or an L1-Signal to Interference Noise Ratio (SINR) .
[0126] 9. The method of solution 3, wherein counting the instances of the trigger event is based on a timer associated with the instance of the trigger event and / or a maximum number of counted instances of the trigger event, and wherein the timer and the maximum number of counted instances of the trigger event are configured for the report configuration.
[0127] 10. The method of solution 9, wherein the wireless device is configured, upon determining the instance of the trigger event, to perform at least one of: starting or restarting the timer associated with the instance of the trigger event; incrementing a counter associated with the instance of the trigger event by one; determining the report triggering when (a) a value of the counter is greater than or equal to the maximum number of counted instances of the trigger event and / or (b) a transmission of the report associated with the instance of the trigger event has not been triggered or has been canceled; or triggering a transmission of the report and / or a report notification associated with the report configuration in response to the report triggering.
[0128] 11. The method of solution 9, wherein the wireless device is configured to: set a value of a counter associated with the instance of the trigger event to zero; stop the timer; or cancel the report triggering in response to at least one of: (a) the timer being expired, (b) the wireless device having received a reconfiguration of the timer, a maximum number of counted instances of the trigger event, the reference signal resource set, and / or information related to the trigger event, (c) the wireless device having received a signaling indicative of a transmission configuration indicator (TCI) state update, (d) the wireless device having received a signaling for a deactivation of the transmission of the report, (e) one or more reference signals used to determine whether the measurement condition has been fulfilled being changed, (f) the wireless device having transmitted the report at one or more of multiple preconfigured times, or (g) the wireless device having received a downlink signaling that excludes an indication for a retransmission of the report.
[0129] 12. The method of solution 3, wherein the wireless device is configured to: cancel the report triggering associated with the report configuration in response to at least one of: (a) the wireless device having transmitted a report associated with the report triggering, (b) the wireless device having transmitted a report associated with a different report configuration, wherein the different report configuration and the report configuration share at least one of: the trigger event, the reference signal resource set, or a cell index, or (c) a number of transmissions of the report is greater than or equal to a maximum value configured for the report configuration.
[0130] 13. The method of any of solutions 1 to 3, wherein the wireless device is configured to:receive a report notification configuration comprising an indication of a periodicity value and / or an offset value for the transmission of the report on the uplink channel resource, wherein the report notification configuration is associated with the report configuration; and determine, based on the periodicity value or the offset value, one or more uplink channel transmission occasions of the uplink channel resource for the transmission of the report.
[0131] 14. The method of any of solutions 1 to 3, wherein the wireless device is configured to:receive a report notification configuration comprising an indication of a periodicity value and / or an offset value for a transmission of a report notification on a second uplink channel resource, wherein the report notification is associated with the report configuration.
[0132] 15. The method of solution 14, wherein the wireless device is configured to: determine, based on the periodicity value or the offset value, one or more uplink channel transmission occasions for the transmission of the report notification.
[0133] 16. The method of solution 15, wherein the wireless device is configured to: determine an uplink channel transmission occasion from the one or more uplink channel transmission occasions for the transmission of the report notification is invalid when the uplink channel transmission occasion overlaps with a Physical Uplink Control Channel (PUCCH) resource corresponding to a Scheduling Request (SR) configuration for beam failure recovery.
[0134] 17. The method of solution 14, wherein the wireless device is configured to transmit the report notification in a valid transmission occasion for the report notification in response to the transmission of the report notification being triggered.
[0135] 18. The method of solution 14, wherein the wireless device is configured with a timer or a maximum number of transmissions for the transmission of the report notification, wherein a counter and the timer are associated with the report notification configuration or the report configuration, and wherein the report notification configuration is associated with the report configuration.
[0136] 19. The method of solution 18, wherein the wireless device is configured to set a value of the counter to zero upon (a) the transmission of the report notification being triggered and (b) a transmission of another report notification associated with the report notification configuration not being triggered.
[0137] 20. The method of solution 18, wherein the wireless device is configured to: start the timer; restart the timer; or increment the counter by one in response to at least one of: (a) the transmission of the report notification associated with the report notification configuration being triggered, (b) a valid uplink channel resource or a valid transmission occasion of the second uplink channel resource being present or available at a time of the transmission of the report notification, (c) the timer not running, being expired, or being stopped at a time of the transmission of the report notification, (d) a value of the counter being less than or equal to the maximum number of transmissions for the transmission of the report notification, or (e) the wireless device having transmitted the report or the report notification.
[0138] 21. The method of solution 18, wherein the wireless device is configured to: stop the timer; or cancel a triggering of the transmission of the report notification in response to at least one of: (a) the wireless device having transmitted the report, (b) the timer being expired, or (c) a value of the counter being greater than or equal to the maximum number of transmissions for the transmission of the report notification.
[0139] 22. The method of solution 13, wherein the wireless device is configured to: determine that an uplink channel transmission occasion of the one or more uplink channel transmission occasions is valid when at least one of: (a) the uplink channel transmission occasion is within uplink symbols, (b) the uplink channel transmission occasion does not precede a Synchronization Signal (SS) / Physical Broadcast Channel (PBCH) block in a slot in which the uplink channel transmission occasion is located, (c) the uplink channel transmission occasion does not precede an uplink channel transmission of a report notification in the slot in which the uplink channel transmission occasion is located, wherein the report and the report notification are associated with a same report configuration, or (d) the uplink channel transmission starts at least N time units after the uplink channel transmission of the report notification, wherein N is determined based on a configured information, and wherein a time unit comprises a slot, a millisecond, or an orthogonal frequency division multiplexing (OFDM) symbol.
[0140] 23. The method of any of solutions 1 to 3, wherein the wireless device is configured to perform the transmission of the report initiated by the wireless device on a valid transmission occasion of the uplink channel resource for the transmission of the report.
[0141] 24. The method of solution 23, wherein the wireless device is configured with a timer and / or a maximum number of transmissions for the transmission of the report, wherein a counter is associated with the transmission of the report, and wherein the counter is initialized to zero.
[0142] 25. The method of solution 24, wherein the wireless device is configured to: start the timer; increment the counter by one; and / or transmit the report on the valid transmission occasion of the uplink channel resource in response to at least one of: (a) the transmission of the report being triggered, (b) the valid transmission occasion of the uplink channel resource configured for the transmission of the report being present or available at a time of the transmission of the report, (c) the timer not running, being expired, or being stopped at a time of the transmission of the report, or (d) a value of the counter being less than or equal to the maximum number of transmissions for the transmission of the report.
[0143] 26. The method of solution 24, wherein the wireless device is configured to: cancel the report triggering associated with the transmission of the report; cancel a triggering of the transmission of a report notification associated with the report; and / or stop the timer in response to at least one of: (a) a value of the counter being greater than or equal to the maximum number of transmissions for the transmission of the report, or (b) the timer expiring.
[0144] 27. An apparatus for wireless communication comprising one or more processors, configured to cause the apparatus to implement the method recited in one or more of solutions 1 to 26.
[0145] 28. A non-transitory computer readable program storage medium having code stored thereon, the code, when executed by one or more processors, causing the one or more processors to implement the method recited in one or more of solutions 1 to 26.
[0146] FIG. 12 shows a block diagram of an example hardware platform 1200 that may be a part of a network device (e.g., base station) or a communication device (e.g., a user equipment (UE) ) . The hardware platform 1200 includes at least one processor 1210 and a memory 1205 having instructions stored thereupon. The instructions upon execution by the processor 1210 configure the hardware platform 1200 to perform the operations described in FIGS. 2 to 11 and in the various embodiments described in this patent document. The transmitter 1215 transmits or sends information or data to another device. For example, a network device transmitter can send a message to a user equipment. The receiver 1220 receives information or data transmitted or sent by another device. For example, a user equipment can receive a message from a network device.
[0147] The implementations as discussed above will apply to a wireless communication. FIG. 13 shows an example of a wireless communication system (e.g., a 5G or NR cellular network) that includes a base station 1320 and one or more user equipment (UE) 1311, 1312 and 1313. In some embodiments, the UEs access the BS (e.g., the network) using a communication link to the network (sometimes called uplink direction, as depicted by dashed arrows 1331, 1332, 1333) , which then enables subsequent communication (e.g., shown in the direction from the network to the UEs, sometimes called downlink direction, shown by arrows 1341, 1342, 1343) from the BS to the UEs. In some embodiments, the BS send information to the UEs (sometimes called downlink direction, as depicted by arrows 1341, 1342, 1343) , which then enables subsequent communication (e.g., shown in the direction from the UEs to the BS, sometimes called uplink direction, shown by dashed arrows 1331, 1332, 1333) from the UEs to the BS. The UE may be, for example, a smartphone, a tablet, a mobile computer, a machine to machine (M2M) device, an Internet of Things (IoT) device, and so on.
[0148] Some of the embodiments described herein are described in the general context of methods or processes, which may be implemented in one embodiment by a computer program product, embodied in a computer-readable medium, including computer-executable instructions, such as program code, executed by computers in networked environments. A computer-readable medium may include removable and non-removable storage devices including, but not limited to, Read Only Memory (ROM) , Random Access Memory (RAM) , compact discs (CDs) , digital versatile discs (DVD) , etc. Therefore, the computer-readable media can include a non-transitory storage media. Generally, program modules may include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. Computer-or processor-executable instructions, associated data structures, and program modules represent examples of program code for executing steps of the methods disclosed herein. The particular sequence of such executable instructions or associated data structures represents examples of corresponding acts for implementing the functions described in such steps or processes.
[0149] Some of the disclosed embodiments can be implemented as devices or modules using hardware circuits, software, or combinations thereof. For example, a hardware circuit implementation can include discrete analog and / or digital components that are, for example, integrated as part of a printed circuit board. Alternatively, or additionally, the disclosed components or modules can be implemented as an Application Specific Integrated Circuit (ASIC) and / or as a Field Programmable Gate Array (FPGA) device. Some implementations may additionally or alternatively include a digital signal processor (DSP) that is a specialized microprocessor with an architecture optimized for the operational needs of digital signal processing associated with the disclosed functionalities of this application. Similarly, the various components or sub-components within each module may be implemented in software, hardware or firmware. The connectivity between the modules and / or components within the modules may be provided using any one of the connectivity methods and media that is known in the art, including, but not limited to, communications over the Internet, wired, or wireless networks using the appropriate protocols.
[0150] While this document contains many specifics, these should not be construed as limitations on the scope of an invention that is claimed or of what may be claimed, but rather as descriptions of features specific to particular embodiments. Certain features that are described in this document in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable sub-combination. Moreover, although features may be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a sub-combination or a variation of a sub-combination. Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results.
[0151] Only a few implementations and examples are described and other implementations, enhancements and variations can be made based on what is described and illustrated in this disclosure.
Claims
1.A wireless communication method, comprising:receiving, by a wireless device from a network node, a report configuration comprising information related to a transmission of a report initiated by the wireless device in an uplink channel resource, wherein the report configuration is associated with a reference signal resource set and a trigger event;determining, based on the report configuration, whether a condition associated with the transmission of the report initiated by the wireless device has been fulfilled, wherein the condition is associated with the trigger event; andtransmitting, to the network node based on the condition being fulfilled, the report in the uplink channel resource.2.A wireless communication method, comprising:transmitting, by a network node to a wireless device, a report configuration comprising information related to a transmission of a report initiated by the wireless device in an uplink channel resource, wherein the report configuration is associated with a reference signal resource set and a trigger event; andreceiving, from the wireless device, the report in the uplink channel resource,wherein the wireless device is configured to transmit the report upon determining that a condition associated with the transmission of the report initiated by the wireless device has been fulfilled.3.The method of claim 1 or 2, wherein the wireless device is configured, as part of determining whether the condition has been fulfilled, to:determine, based on a measurement condition being fulfilled, an instance of the trigger event; anddetermine, based on counting instances of the trigger event, a report triggering,wherein the report is transmitted in response to the report triggering.4.The method of claim 3, wherein the report configuration comprises an indication that the uplink channel resource is scheduled or activated by a Physical Downlink Control Channel (PDCCH) .5.The method of claim 3, wherein the report configuration comprises an indication that the uplink channel resource is configured for the report configuration.6.The method of claim 3, wherein determining whether the measurement condition has been fulfilled is based on a measurement result of a reference signal, and wherein the reference signal is (a) part of the reference signal resource set or (b) associated with a transmission parameter.7.The method of claim 6, wherein the transmission parameter is determined based on the trigger event associated with the report configuration.8.The method of claim 6, wherein the measurement result comprises a Layer 1 (L1) -Reference Signal Received Power (RSRP) or an L1-Signal to Interference Noise Ratio (SINR) .9.The method of claim 3, wherein counting the instances of the trigger event is based on a timer associated with the instance of the trigger event and / or a maximum number of counted instances of the trigger event, and wherein the timer and the maximum number of counted instances of the trigger event are configured for the report configuration.10.The method of claim 9, wherein the wireless device is configured, upon determining the instance of the trigger event, to perform at least one of:starting or restarting the timer associated with the instance of the trigger event;incrementing a counter associated with the instance of the trigger event by one;determining the report triggering when (a) a value of the counter is greater than or equal to the maximum number of counted instances of the trigger event and / or (b) a transmission of the report associated with the instance of the trigger event has not been triggered or has been canceled; ortriggering a transmission of the report and / or a report notification associated with the report configuration in response to the report triggering.11.The method of claim 9, wherein the wireless device is configured to:set a value of a counter associated with the instance of the trigger event to zero;stop the timer; orcancel the report triggering in response to at least one of:a) the timer being expired,b) the wireless device having received a reconfiguration of the timer, a maximum number of counted instances of the trigger event, the reference signal resource set, and / or information related to the trigger event,c) the wireless device having received a signaling indicative of a transmission configuration indicator (TCI) state update,d) the wireless device having received a signaling for a deactivation of the transmission of the report,e) one or more reference signals used to determine whether the measurement condition has been fulfilled being changed,f) the wireless device having transmitted the report at one or more of multiple preconfigured times, org) the wireless device having received a downlink signaling that excludes an indication for a retransmission of the report.12.The method of claim 3, wherein the wireless device is configured to:cancel the report triggering associated with the report configuration in response to at least one of:a) the wireless device having transmitted a report associated with the report triggering,b) the wireless device having transmitted a report associated with a different report configuration, wherein the different report configuration and the report configuration share at least one of: the trigger event, the reference signal resource set, or a cell index, orc) a number of transmissions of the report is greater than or equal to a maximum value configured for the report configuration.13.The method of claim 3, wherein the wireless device is configured to:receive a report notification configuration comprising an indication of a periodicity value and / or an offset value for the transmission of the report on the uplink channel resource, wherein the report notification configuration is associated with the report configuration; anddetermine, based on the periodicity value or the offset value, one or more uplink channel transmission occasions of the uplink channel resource for the transmission of the report.14.The method of claim 3, wherein the wireless device is configured to:receive a report notification configuration comprising an indication of a periodicity value and / or an offset value for a transmission of a report notification on a second uplink channel resource, wherein the report notification is associated with the report configuration.15.The method of claim 14, wherein the wireless device is configured to:determine, based on the periodicity value or the offset value, one or more uplink channel transmission occasions for the transmission of the report notification.16.The method of claim 15, wherein the wireless device is configured to:determine an uplink channel transmission occasion from the one or more uplink channel transmission occasions for the transmission of the report notification is invalid when the uplink channel transmission occasion overlaps with a Physical Uplink Control Channel (PUCCH) resource corresponding to a Scheduling Request (SR) configuration for beam failure recovery.17.The method of claim 14, wherein the wireless device is configured to transmit the report notification in a valid transmission occasion for the report notification in response to the transmission of the report notification being triggered.18.The method of claim 14, wherein the wireless device is configured with a timer or a maximum number of transmissions for the transmission of the report notification, wherein a counter and the timer are associated with the report notification configuration or the report configuration, and wherein the report notification configuration is associated with the report configuration.19.The method of claim 18, wherein the wireless device is configured to set a value of the counter to zero upon (a) the transmission of the report notification being triggered and (b) a transmission of another report notification associated with the report notification configuration not being triggered.20.The method of claim 18, wherein the wireless device is configured to:start the timer;restart the timer; orincrement the counter by one in response to at least one of:a) the transmission of the report notification associated with the report notification configuration being triggered,b) a valid uplink channel resource or a valid transmission occasion of the second uplink channel resource being present or available at a time of the transmission of the report notification,c) the timer not running, being expired, or being stopped at a time of the transmission of the report notification,d) a value of the counter being less than or equal to the maximum number of transmissions for the transmission of the report notification, ore) the wireless device having transmitted the report or the report notification.21.The method of claim 18, wherein the wireless device is configured to:stop the timer; orcancel a triggering of the transmission of the report notification in response to at least one of:a) the wireless device having transmitted the report,b) the timer being expired, orc) a value of the counter being greater than or equal to the maximum number of transmissions for the transmission of the report notification.22.The method of claim 13, wherein the wireless device is configured to:determine that an uplink channel transmission occasion of the one or more uplink channel transmission occasions is valid when at least one of:a) the uplink channel transmission occasion is within uplink symbols,b) the uplink channel transmission occasion does not precede a Synchronization Signal (SS) / Physical Broadcast Channel (PBCH) block in a slot in which the uplink channel transmission occasion is located,c) the uplink channel transmission occasion does not precede an uplink channel transmission of a report notification in the slot in which the uplink channel transmission occasion is located, wherein the report and the report notification are associated with a same report configuration, ord) the uplink channel transmission starts at least N time units after the uplink channel transmission of the report notification, wherein N is determined based on a configured information, and wherein a time unit comprises a slot, a millisecond, or an orthogonal frequency division multiplexing (OFDM) symbol.23.The method of claim 3, wherein the wireless device is configured to perform the transmission of the report initiated by the wireless device on a valid transmission occasion of the uplink channel resource for the transmission of the report.24.The method of claim 23, wherein the wireless device is configured with a timer and / or a maximum number of transmissions for the transmission of the report, wherein a counter is associated with the transmission of the report, and wherein the counter is initialized to zero.25.The method of claim 24, wherein the wireless device is configured to:start the timer;increment the counter by one; and / ortransmit the report on the valid transmission occasion of the uplink channel resource in response to at least one of:a) the transmission of the report being triggered,b) the valid transmission occasion of the uplink channel resource configured for the transmission of the report being present or available at a time of the transmission of the report,c) the timer not running, being expired, or being stopped at a time of the transmission of the report, ord) a value of the counter being less than or equal to the maximum number of transmissions for the transmission of the report.26.The method of claim 24, wherein the wireless device is configured to:cancel the report triggering associated with the transmission of the report;cancel a triggering of the transmission of a report notification associated with the report; and / orstop the timer in response to at least one of:a) a value of the counter being greater than or equal to the maximum number of transmissions for the transmission of the report, orb) the timer expiring.27.An apparatus for wireless communication comprising one or more processors, configured to cause the apparatus to implement the method recited in one or more of claims 1 to 26.28.A non-transitory computer readable program storage medium having code stored thereon, the code, when executed by one or more processors, causing the one or more processors to implement the method recited in one or more of claims 1 to 26.
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