Power consistency for uplink demodulation reference signal (DMRS) bundling

Abstract

Some aspects of the present disclosure provide techniques for providing power consistency in uplink demodulation reference signal (DMRS) bundling. The method, which may be performed by a user equipment (UE), includes identifying that a first uplink transmission having DMRS bundling overlaps in time with a second uplink transmission in one or more transmit occasions. The method also includes, in response to the identification, allocating transmit power between the first uplink transmission and the second uplink transmission in the one or more transmit occasions based on the first uplink transmission having DMRS bundling. The method further includes transmitting at least one of the first uplink transmission or the second uplink transmission in the one or more transmit occasions at the allocated transmit power.

Description

[Technical field]

[0001] Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for providing power consistency in uplink demodulation reference signal (DMRS) bundling. [Background technology]

[0002] Wireless communication systems have been widely deployed to provide various telecommunication services, such as telephone, video, data, messaging, broadcast, and so on. These wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, and so on). Examples of such multiple access systems include Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, to name a few.

[0003] These multiple access technologies are being adopted in various telecommunications standards to provide a common protocol that allows different wireless devices to communicate on a city, national, regional, or even global scale. New Radio (e.g., 5G NR) is an example of an emerging telecommunications standard. NR is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, utilizing new spectrum, and better integrating with other open standards that use OFDMA with cyclic prefixes (CPs) on the downlink (DL) and uplink (UL). For these purposes, NR supports beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.

[0004] However, as the demand for mobile broadband access continues to grow, further improvements in NR and LTE technologies are needed that should be applicable to other multiple access technologies, and the telecommunications standards that employ these technologies. Summary of the Invention [Means for solving the problem]

[0005] The systems, methods, and devices of the present disclosure each have several aspects, no single aspect of which is solely responsible for its desirable attributes. After reviewing this description, and in particular after reading the section entitled "Description of Preferred Embodiments," it will be understood how features of the present disclosure provide advantages including desirable uplink performance via demodulation reference signal (DMRS) bundling and / or joint channel estimation.

[0006] Some aspects of the subject matter described in this disclosure may be implemented in a method for wireless communication by a user equipment (UE). The method generally includes identifying that a first uplink transmission having DMRS bundling overlaps in time with a second uplink transmission in one or more transmit occasions. The method also includes, in response to the identification, allocating transmit power between the first uplink transmission and the second uplink transmission in the one or more transmit occasions based on the first uplink transmission having DMRS bundling. The method further includes transmitting at least one of the first uplink transmission or the second uplink transmission in the one or more transmit occasions at the allocated transmit power.

[0007] Some aspects of the subject matter described in this disclosure may be implemented in a method for wireless communication by a network entity. The method generally includes identifying, within one or more transmission occasions, that a first uplink transmission from a UE overlaps in time with a second uplink transmission from the UE, the first uplink transmission having DMRS bundling. The method also includes receiving a signal associated with the first uplink transmission. The method further includes performing joint channel estimation using the received signal based on the identification.

[0008] Some aspects of the subject matter described in this disclosure may be implemented in an apparatus for wireless communication. The apparatus generally includes a memory, a processor, and a transmitter. The processor is coupled to the memory, and the processor and memory are configured to identify that a first uplink transmission having DMRS bundling overlaps in time with a second uplink transmission in one or more transmit occasions, and in response to the identification, allocate transmit power between the first uplink transmission and the second uplink transmission in the one or more transmit occasions based on the first uplink transmission having DMRS bundling. The transmitter is configured to transmit at least one of the first uplink transmission or the second uplink transmission in the one or more transmit occasions at the allocated transmit power.

[0009] Some aspects of the subject matter described in this disclosure may be implemented in an apparatus for wireless communication. The apparatus generally includes a memory, a processor, and a receiver. The receiver is configured to receive a signal associated with a first uplink transmission from a UE. The processor is coupled to the memory, and the processor and memory are configured to: identify that the first uplink transmission from the UE overlaps in time with a second uplink transmission from the UE within one or more transmit occasions, where the first uplink transmission has DMRS bundling, and perform joint channel estimation using the received signal based on the identification.

[0010] Certain aspects of the subject matter described in this disclosure may be implemented in an apparatus for wireless communications. The apparatus generally includes means for identifying that a first uplink transmission having DMRS bundling overlaps in time with a second uplink transmission in one or more transmit occasions, means for allocating transmit power between the first uplink transmission and the second uplink transmission in the one or more transmit occasions based on the first uplink transmission having DMRS bundling in response to the identification, and means for transmitting at least one of the first uplink transmission or the second uplink transmission in the one or more transmit occasions at the allocated transmit power.

[0011] Certain aspects of the subject matter described in this disclosure may be implemented in an apparatus for wireless communications. The apparatus generally includes means for identifying, within one or more transmit occasions, that a first uplink transmission from a UE overlaps in time with a second uplink transmission from the UE, the first uplink transmission having DMRS bundling, means for receiving a signal associated with the first uplink transmission, and means for performing joint channel estimation using the received signal based on the identification.

[0012] Certain aspects of the subject matter described in this disclosure may be implemented in a computer-readable medium having stored thereon instructions for identifying that a first uplink transmission having DMRS bundling overlaps in time with a second uplink transmission in one or more transmit occasions, in response to the identification, allocating transmit power between the first uplink transmission and the second uplink transmission in the one or more transmit occasions based on the first uplink transmission having DMRS bundling, and transmitting at least one of the first uplink transmission or the second uplink transmission in the one or more transmit occasions at the allocated transmit power.

[0013] Certain aspects of the subject matter described in this disclosure may be implemented in a computer-readable medium having stored thereon instructions for identifying a first uplink transmission from a UE that overlaps in time with a second uplink transmission from the UE within one or more transmit occasions, where the first uplink transmission has DMRS bundling; receiving a signal associated with the first uplink transmission; and performing joint channel estimation using the received signal based on the identification.

[0014] To the accomplishment of the foregoing and related ends, the one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail certain illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of the various aspects may be employed.

[0015] So that the above-mentioned features of the present disclosure may be understood in detail, a more particular description may be had by reference to embodiments, some of which are illustrated in the drawings, briefly summarized above. It should be noted, however, that the attached drawings illustrate only some embodiments of the present disclosure, and that the description may lead to other equally effective embodiments. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a block diagram conceptually illustrating an example wireless communication network, in accordance with certain aspects of the present disclosure. [Diagram 2] FIG. 1 is a block diagram conceptually illustrating an example base station (BS) and user equipment (UE) design in accordance with certain aspects of the present disclosure. [Diagram 3] FIG. 1 is a diagram of an example frame format for some wireless communication systems (e.g., New Radio (NR)) in accordance with some aspects of the present disclosure. [Figure 4]FIG. 2 illustrates an example of symbol positions of a demodulation reference signal (DMRS) in multiple slots in accordance with certain aspects of the present disclosure. [Diagram 5] FIG. 2 illustrates an example of time-overlapping transmissions in accordance with some aspects of the present disclosure. [Figure 6] 1 is a flow diagram illustrating example operations for wireless communication by a UE, in accordance with certain aspects of the present disclosure. [Figure 7A] 1 illustrates an example of canceling overlapping transmission occasions of lower priority transmissions with DMRS bundling, according to certain aspects of the disclosure. [Figure 7B] 1 illustrates an example of canceling overlapping and subsequent transmission occasions of lower priority transmissions with DMRS bundling, according to certain aspects of the disclosure. [Figure 8A] 1 illustrates an example of separating DMRS bundling for overlapping transmission occasions in accordance with certain aspects of the present disclosure. [Figure 8B] 1 illustrates an example of separating DMRS bundling between overlapping transmission occasions in accordance with certain aspects of the present disclosure. [Figure 9A] 1 illustrates an example of prioritizing an earlier transmission with DMRS bundling over another transmission, according to certain aspects of the disclosure. [Figure 9B] 1 illustrates an example of prioritizing an earlier transmission with DMRS bundling over another transmission with DMRS bundling, according to certain aspects of the disclosure. [Figure 10A] 1 illustrates an example of allocating transmit power according to a priority order based on earlier transmissions not starting before a certain time window, in accordance with certain aspects of the disclosure. [Figure 10B] 1 illustrates an example of canceling a transmission occasion for a transmission involving DMRS bundling based on an earlier transmission starting before a certain time window, according to certain aspects of the disclosure. [Figure 11]5 is a flow diagram illustrating example operations for wireless communication by a network entity in accordance with certain aspects of the present disclosure. [Figure 12] FIG. 1 illustrates a communications device (e.g., a UE) that may include various components configured to perform operations for the techniques disclosed herein, in accordance with aspects of the present disclosure. [Figure 13] A diagram illustrating a communications device (e.g., a BS) that may include various components configured to perform operations for the techniques disclosed herein, in accordance with aspects of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] For ease of understanding, wherever possible, like reference numbers have been used to designate like elements common to the figures. It is contemplated that elements disclosed in one embodiment may be advantageously utilized in other embodiments without specific recitation.

[0018] Aspects of the present disclosure provide apparatus, methods, processing systems, and computer-readable media for providing transmit power consistency for transmissions with demodulation reference signal (DMRS) bundling. In some cases, prioritization for transmit power reduction may take into account transmissions with DMRS bundling and allocate consistent transmit power across at least a portion of the transmissions with DMRS bundling. For example, prioritization for transmit power reduction may provide contention resolution for transmissions with DMRS bundling through a separate rank for DMRS bundling in a priority order (e.g., new radio priority order), cancellation of a portion of conflicting transmissions (such as lower priority transmissions), or separating DMRS bundling along overlapping transmission occasions.

[0019] The following description provides examples of power consistency for uplink DMRS bundling in a communication system. Changes may be made in the function and configuration of the described elements without departing from the present disclosure. Various examples may omit, substitute, or add various procedures or components, as appropriate. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Also, features described with respect to some examples may be combined in some other examples. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects described herein. In addition, the present disclosure is intended to encompass such apparatus or methods practiced using other structures, functions, or structures and functions in addition to or other than the various aspects of the disclosure described herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim. The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any aspect described herein as "exemplary" should not necessarily be construed as preferred or advantageous over other aspects.

[0020] In general, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a particular radio access technology (RAT) and may operate on one or more frequencies. A RAT may also be referred to as a radio technology, an air interface, etc. A frequency may also be referred to as a carrier, a subcarrier, a frequency channel, a tone, a subband, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs.

[0021] The techniques described herein may be used for a variety of wireless networks and radio technologies. Although aspects may be described herein using terminology commonly associated with 3G, 4G, and / or New Radio (e.g., 5G NR) wireless technologies, aspects of the disclosure may be applied in other generation-based communication systems.

[0022] The NR access may support various wireless communication services, such as enhanced Mobile Broadband (eMBB) targeting wide bandwidth, millimeter wave (mmW), massive machine type communication (MTC) targeting non-backward compatible MTC techniques, and / or mission critical targeting ultra-reliable low latency communication (URLLC). These services may include latency and reliability requirements. These services may also have different transmission time intervals (TTIs) to meet their respective quality of service (QoS) requirements. In addition, these services may coexist in the same subframe.

[0023] NR supports beamforming, and the beam direction may be dynamically configured. MIMO transmission with precoding may also be supported. MIMO configuration in DL may support up to eight transmit antennas with multi-layer DL transmission of up to eight streams and up to two streams per UE. Multi-layer transmission with up to two streams per UE may be supported. Aggregation of multiple cells may be supported with up to eight serving cells.

[0024] FIG. 1 illustrates an example wireless communication network 100 in which aspects of the present disclosure may be implemented. For example, the wireless communication network 100 may be an NR system (e.g., a 5G NR network). As shown in FIG. 1, the wireless communication network 100 may be in communication with a core network 132. The core network 132 may be in communication with one or more base stations (BSs) 110a-z (each also referred to herein individually or collectively as BSs 110) and / or user equipments (UEs) 120a-y (each also referred to herein individually or collectively as UEs 120) in the wireless communication network 100 over one or more interfaces.

[0025] 1, the BS 110a includes a channel estimation manager 112 that determines which transmission occasions associated with a transmission from the UE 120a have DMRS bundling for joint channel estimation according to an aspect of the present disclosure. The UE 120a includes a DMRS bundling manager 122 that allocates transmit power between transmissions with DMRS bundling and other overlapping transmissions according to an aspect of the present disclosure.

[0026] The BSs 110 may provide communication coverage for a particular geographic area, which may be referred to as a "cell," and may be fixed or may move according to the location of the mobile BSs 110. In some examples, the BSs 110 may be interconnected to one another and / or to one or more other BSs or network nodes (not shown) in the wireless communications network 100 through various types of backhaul interfaces (e.g., direct physical connections, wireless connections, virtual networks, etc.) using any suitable transport network. In the example shown in FIG. 1, the BSs 110a, 110b, and 110c may be macro BSs for the macro cells 102a, 102b, and 102c, respectively. The BS 110x may be a pico BS for the pico cell 102x. The BSs 110y and 110z may be femto BSs for the femto cells 102y and 102z, respectively. The BSs may support one or more cells.

[0027] The BS 110 communicates with the UEs 120 within the wireless communications network 100. The UEs 120 (e.g., 120x, 120y, etc.) may be dispersed throughout the wireless communications network 100, and each UE 120 may be fixed or mobile. The wireless communications network 100 may include a relay station (e.g., relay station 110r), also referred to as a relay, etc., that receives transmissions of data and / or other information from an upstream station (e.g., BS 110a or UE 120r) and forwards transmissions of data and / or other information to a downstream station (e.g., UE 120 or BS 110) or relays transmissions between UEs 120 to facilitate communication between the devices.

[0028] The network controller 130 may be in communication with a set of BSs 110 and may provide coordination and control for these BSs 110 (e.g., via a backhaul). In some cases, the network controller 130 may include, for example, a centralized unit (CU) and / or a distributed unit (DU) in a 5G NR system. In an aspect, the network controller 130 may be in communication with a core network 132 (e.g., a 5G core network (5GC)), which provides various network functions such as access and mobility management, session management, user plane functions, policy control functions, authentication server functions, integrated data management, application functions, network exposure functions, network repository functions, network slice selection functions, etc.

[0029] FIG. 2 illustrates example components of a BS 110a and a UE 120a (eg, the wireless communication network 100 of FIG. 1) that may be used to implement aspects of the present disclosure.

[0030] At the BS 110a, the transmit processor 220 may receive data from the data source 212 and control information from the controller / processor 240. The control information may be for a physical broadcast channel (PBCH), a physical control format indicator channel (PCFICH), a physical hybrid ARQ indicator channel (PHICH), a physical downlink control channel (PDCCH), a group common PDCCH (GC PDCCH), etc. The data may be for a physical downlink shared channel (PDSCH), etc. A medium access control (MAC)-control element (MAC-CE) is a MAC layer communication structure that may be used for control command exchange between wireless nodes. The MAC-CE may be carried within a shared channel, such as a physical downlink shared channel (PDSCH), a physical uplink shared channel (PUSCH), or a physical sidelink shared channel (PSSCH).

[0031] The processor 220 may process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively. The transmit processor 220 may also generate reference symbols, such as for a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a PBCH demodulation reference signal (DMRS), and a channel state information reference signal (CSI-RS). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​the data symbols, control symbols, and / or reference symbols, if applicable, and may provide output symbol streams to modulators (MODs) within the transceivers 232a-t. Each modulator within the transceivers 232a-t may process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. Downlink signals from the modulators in transceivers 232a through 232t may be transmitted via antennas 234a through 234t, respectively.

[0032] At the UE 120a, the antennas 252a-252r may receive downlink signals from the BS 110a and may provide received signals to demodulators (DEMODs) within the transceivers 254a-254r, respectively. Each demodulator within the transceivers 254a-254r may condition (e.g., filter, amplify, downconvert, and digitize) a respective received signal to obtain input samples. Each demodulator may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all the demodulators within the transceivers 254a-254r, perform MIMO detection on the received symbols, if applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate, deinterleave, and decode) the detected symbols and provide decoded data for the UE 120a to a data sink 260 and provide decoded control information to the controller / processor 280.

[0033] On the uplink, at the UE 120a, a transmit processor 264 may receive and process data (e.g., for the Physical Uplink Shared Channel (PUSCH)) from a data source 262 and control information (e.g., for the Physical Uplink Control Channel (PUCCH)) from a controller / processor 280. The transmit processor 264 may also generate reference symbols for a reference signal (e.g., for a Sounding Reference Signal (SRS)). The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by modulators in transceivers 254a-254r (e.g., for SC-FDM, etc.), and transmitted to the BS 110a. At BS 110a, the uplink signal from UE 120a may be received by antenna 234, processed by demodulators in transceivers 232a-232t, detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by UE 120a. The receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to a controller / processor 240.

[0034] The memories 242 and 282 may store data and program codes for the BS 110a and the UE 120a, respectively. The scheduler 244 may schedule UEs for data transmission on the downlink and / or uplink.

[0035] The antennas 252, processors 266, 258, 264, and / or controller / processor 280 of the UE 120a and / or the antennas 234, processors 220, 230, 238, and / or controller / processor 240 of the BS 110a may be used to perform various techniques and methods described herein. For example, as shown in FIG. 2, the controller / processor 240 of the BS 110a has a channel estimation manager 241 that determines which transmission occasions associated with a transmission from the UE 120a have DMRS bundling for joint channel estimation according to aspects described herein. As shown in FIG. 2, the controller / processor 280 of the UE 120a has a DMRS bundling manager 281 that allocates transmit power between a transmission with DMRS bundling and another overlapping transmission according to aspects described herein. Although shown in the controller / processor, other components of the UE 120a and the BS 110a may be used to perform the operations described herein.

[0036] NR may utilize Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) on the uplink and downlink. NR may support half-duplex operation using Time Division Duplex (TDD). OFDM and Single Carrier Frequency Division Multiplexing (SC-FDM) partition the system bandwidth into multiple orthogonal subcarriers, which are also commonly referred to as tones, bins, etc. Each subcarrier may be modulated with data. Modulation symbols may be sent in the frequency domain with OFDM and in the time domain with SC-FDM. The spacing between adjacent subcarriers may be fixed, and the total number of subcarriers may depend on the system bandwidth. The minimum resource allocation, called a resource block (RB), may be 12 contiguous subcarriers. The system bandwidth may also be partitioned into subbands. For example, a subband may cover multiple RBs. NR may support a base subcarrier spacing (SCS) of 15 KHz, and other SCSs (e.g., 30 kHz, 60 kHz, 120 kHz, 240 kHz, etc.) may be defined relative to the base SCS.

[0037] FIG. 3 illustrates an example of a frame format 300 for NR. A transmission timeline for each of the downlink and uplink may be partitioned into units of radio frames. Each radio frame may have a predetermined duration (e.g., 10 ms) and may be partitioned into 10 subframes with indices of 0 to 9, each of 1 ms. Each subframe may include a variable number of slots (e.g., 1, 2, 4, 8, 16, ... slots) depending on the SCS. Each slot may include a variable number of symbol periods (e.g., 7, 12, or 14 symbols) depending on the SCS. The symbol periods within each slot may be assigned an index. A subslot structure may refer to a transmission time interval that is shorter in duration than a slot (e.g., 2, 3, or 4 symbols). Each symbol within a slot may be configured for a link direction (e.g., downlink (DL), uplink (UL), or flexible) for data transmission, and the link direction per subframe may be dynamically switched. The link direction may be based on the slot format. Each slot may contain DL / UL data as well as DL / UL control information.

[0038] In NR, a synchronization signal block (SSB) is transmitted. In some aspects, the SSB may be transmitted in a burst, where each SSB in the burst corresponds to a different beam direction for UE-side beam management (including, for example, beam selection and / or beam refinement). The SSB includes a PSS, an SSS, and a 2-symbol PBCH. The SSB may be transmitted in a fixed slot location, such as symbols 0-3 as shown in FIG. 3. The PSS and SSS may be used by the UE for cell search and acquisition. The PSS may provide half-frame timing, and the SS may provide CP length and frame timing. The PSS and SSS may provide cell identification information. The PBCH carries some basic system information, such as downlink system bandwidth, timing information in radio frames, SS burst periodicity, and system frame number. The SSB may be organized into SS bursts to support beam sweeping. Further system information, such as Minimum Residual System Information (RMSI), System Information Block (SIB), Other System Information (OSI), etc., may be transmitted on the Physical Downlink Shared Channel (PDSCH) in some subframes. An SSB may be transmitted up to 64 times, for example, in up to 64 different beam directions for mmWave. Multiple transmissions of an SSB are called an SS burst. The SSBs in an SS burst may be transmitted in the same frequency region, but the SSBs in different SS bursts may be transmitted in different frequency regions.

[0039] In some wireless communication systems (e.g., 5G NR systems), a transmitter may perform DMRS time-domain bundling (also referred to herein as DMRS bundling), in which the DMRS may be transmitted coherently on different transmission occasions (e.g., minislots or slots) using the same power and the same precoder. For example, a transmitter may transmit one or more data packets along with the DMRS with coherent phase (i.e., phase continuity) and consistent transmit power across different transmission occasions, such as consecutive or non-consecutive transmission occasions. At a receiver, the DMRS on different transmission occasions may be coherently filtered to improve the accuracy of channel estimation. That is, the receiver may perform joint channel estimation on multiple transmission occasions (e.g., minislots or slots). DMRS bundling and / or joint channel estimation for an uplink channel (e.g., PUSCH or PUCCH) may enable various coverage extensions, such as joint channel estimation on continuous or discontinuous uplink transmissions, or inter-slot frequency hopping with inter-slot bundling.

[0040] 4 is a diagram illustrating an example of symbol positions of DMRS in slots 1 through K for a PUSCH in accordance with some aspects of the disclosure. The transmitter may perform DMRS bundling across slots 1 through K. In some cases, the DMRS bundling may be for contiguous or non-contiguous slots. For example, DMRS bundling may be performed for slots 1 through K, except for slot 2.

[0041] In some wireless communication systems (e.g., 5G NR systems), when two or more uplink carriers are scheduled for transmission in the same transmission occasion, the UE may have a prioritization for transmit power reduction. In single-cell operation with two uplink carriers, or in operation with carrier aggregation, the total UE transmit power for PUSCH or PUCCH or Physical Random Access Channel (PRACH) or SRS transmissions on the serving cell in a frequency range within each transmission occasion i may be prioritized as follows:

[0042]

number

[0043] However,

[0044]

number

[0045] is P in sending occasion i CMAX If (i) is a linear value of (i), then the UE determines that the total UE transmit power for transmissions on the serving cell in a frequency range is equal to or greater than 1 for that frequency range within every symbol of transmission occasion i.

[0046]

number

[0047] Allocate power to PUSCH / PUCCH / PRACH / SRS transmissions according to a given priority order such that: An exemplary priority order in descending order (sometimes referred to as NR priority order) is: (1) PRACH transmission on the primary serving cell (Pcell); (2) A PUCCH / PUSCH transmission with a higher priority index (e.g., a priority index of 1 used for URLLC and a priority index of 0 for eMBB); (3) For PUCCH / PUSCH transmissions with the same priority index: (a) a PUCCH transmission with Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) information, and / or a Scheduling Request (SR), and / or a Link Recovery Request (LRR), or a PUSCH transmission with HARQ-ACK information; (b) PUSCH / PUCCH carrying CSI, and (c) PUSCH transmission without HARQ-ACK information or CSI, and in the case of a type 2 random access procedure, PUSCH transmission on the PCell; and (4) SRS transmission involving aperiodic SRS having higher priority than semi-persistent and / or periodic SRS, or PRACH transmission on a serving cell other than the PCell (such as a secondary serving cell (Scell)).

[0048] In this example, the PRACH transmission on the Pcell has the highest priority or rank in the priority order, and the SRS or PRACH transmission on the Scell ​​has the lowest priority or rank in the priority order. For example, the UE may allocate more transmit power to the PRACH transmission on the Pcell than to the PRACH transmission on the Scell ​​according to the priority order. In the case of transmissions with the same priority order and in operation with carrier aggregation, the UE may prioritize power allocation for transmissions on the Pcell over transmissions on the Scell. In the case of transmissions with the same priority order and in operation with two uplink carriers (e.g., a supplemental carrier and a non-supplemental carrier), the UE may prioritize power allocation for transmissions on the carrier on which the UE is configured to transmit PUCCH. If PUCCH is not configured for any of the two UL carriers, the UE may prioritize power allocation for transmissions on the non-supplemental UL carrier.

[0049] In an aspect, a transmission may be associated with a priority index, such as an ordinal number (e.g., 0, 1, 2, 3, etc., where a higher number represents a higher priority). In NR, the priority index may have a value of 0 or 1. For example, downlink control information (DCI) that schedules an uplink transmission may include a priority index associated with the transmission. The priority index may be used to determine prioritization as described herein. As an example, a PUCCH / PUSCH transmission with a higher priority index (e.g., a priority index of 1) may be prioritized over another PUCCH / PUSCH transmission with a lower priority index (e.g., a priority index of 0).

[0050] 5 is a diagram illustrating an example of a PUSCH transmission 502 on a first component carrier (CC_0) and a PUCCH transmission 504 on a second component carrier (CC_1) overlapping within one or more transmission occasions 506 in accordance with certain aspects of the present disclosure. 1 and P 2 The sum of the transmit power threshold (P CMAX ) within a transmission occasion 506. 1 , and the PUCCH transmission 504 may be allocated a transmit power of P 2 A PUSCH transmission 502 without HARQ-ACK or CSI may have lower priority than a PUCCH transmission 504 because the PUCCH transmission 504 may carry a HARQ-ACK. In such a case, the PUSCH transmission 502 may be allocated lower transmit power than the PUCCH transmission 504 within a transmission occasion 506.

[0051] For DMRS bundling in a first transmission (e.g., on a first component carrier) and in case of collision with a higher priority second transmission (e.g., on a second component carrier), the UE may adjust the transmit power of the first transmission to ensure that the total transmit power does not exceed the maximum transmit power supported by the UE. Transmit power reduction in the first transmission may remove coherency of the DMRS bundling. In such a case, prioritization for transmit power reduction may not facilitate consistent power for DMRS bundling and / or joint channel estimation.

[0052] Exemplary Power Consistency for Uplink DMRS Bundling Aspects of the present disclosure provide various techniques and apparatus for providing transmit power consistency for transmissions with DMRS bundling. In some cases, the prioritization for transmit power reduction may take into account transmissions with DMRS bundling and allocate consistent transmit power across at least a portion of the transmissions with DMRS bundling. For example, the prioritization for transmit power reduction may provide contention resolution for transmissions with DMRS bundling through a separate rank for DMRS bundling in a priority order (e.g., NR priority order), cancellation of a portion of conflicting transmissions (such as lower priority transmissions), or separating DMRS bundling along overlapping transmission occasions. In an aspect, the prioritization for transmit power reduction may provide contention resolution that is a function of a priority index, a DMRS bundling flag, and a payload type. In general, the UE may prioritize earlier started transmissions with DMRS bundling when overlapping transmissions have the same priority; in other cases, the UE may prioritize higher priority transmissions but take into account transmissions with DMRS bundling (such as canceling or falling back to non-coherent transmissions within overlapping transmission occasions).

[0053] Prioritization for transmit power reduction that takes DMRS bundling into account as described herein may enable allocation of transmit power to transmissions with DMRS bundling that provide desired channel estimates at a receiver (e.g., a base station) and / or desired coverage. Thus, prioritization for transmit power reduction may facilitate desired uplink transmission performance, such as desired data rate, latency, and / or coverage.

[0054] 6 is a flow diagram illustrating example operations 600 for wireless communication according to some aspects of the disclosure. The operations 600 may be performed, for example, by a UE (such as UE 120a in wireless communication network 100). The operations 600 may be implemented as software components executed and operated on one or more processors (e.g., controller / processor 280 of FIG. 2). Furthermore, the transmission and reception of signals by the UE in the operations 600 may be enabled, for example, by one or more antennas (e.g., antenna 252 of FIG. 2). In some aspects, the transmission and / or reception of signals by the UE may be implemented via a bus interface of one or more processors (e.g., controller / processor 280) that acquires and / or outputs the signals.

[0055] The operations 600 may begin at block 602, where a UE may identify that a first uplink transmission with DMRS bundling overlaps in time with a second uplink transmission in one or more transmission occasions (e.g., time domain resources). The first uplink transmission may overlap in the time domain with the second uplink transmission, e.g., as described herein with respect to FIG. 5. In an aspect, the second uplink transmission may be a transmission with or without DMRS bundling. A transmission occasion as used herein may refer to one or more time domain resource units, such as a symbol, a minislot, or a slot, e.g., as described herein with respect to FIG. 3. A minislot may refer to a consecutive sequence of symbols in a slot, such as two or four consecutive symbols in a slot.

[0056] At block 604, the UE may allocate transmit power among the first uplink transmission and the second uplink transmission in one or more transmit occasions based on the first uplink transmission having DMRS bundling, in response to identifying at block 602. For example, at block 604, the UE may apply various prioritizations for transmit power reduction that take into account the first uplink transmission having DMRS bundling, such as a separate rank for DMRS bundling in a priority order (e.g., an NR priority order), canceling a portion of conflicting transmissions (such as lower priority transmissions), or separating DMRS bundling along overlapping transmit occasions, as described further herein.

[0057] In block 606, the UE may transmit at least one of a first uplink transmission or a second uplink transmission in one or more transmit occasions at the allocated transmit power. For example, the UE may transmit a first uplink transmission with DMRS bundling in a transmit occasion that does not overlap with the second uplink transmission and fall back to a non-coherent transmission in a transmit occasion that overlaps with the second uplink transmission. In block 606, the UE may be in communication with a base station (such as BS 110a shown in FIG. 1). That is, the UE may transmit the first uplink transmission or the second uplink transmission to the base station.

[0058] In some aspects, prioritization for transmit power reduction may cancel a portion of a lower priority transmission. For example, if a coherent PUSCH / PUCCH transmission with DMRS bundling overlaps with a higher priority transmission (e.g., a URLLC transmission with priority index 1, or a HARQ-ACK / CSI with the same priority index) and the total transmit power exceeds a threshold transmit power, a portion of the low priority transmission may be canceled. In some cases, only the overlapping transmit occasion may be canceled. In such cases, power consistency (i.e., DMRS bundling) may be assumed after cancellation for joint channel estimation across all transmit occasions except the overlapping transmit occasion. In some aspects, the overlapping transmit occasion and the subsequent transmit occasion may be canceled.

[0059] In block 604, if the first uplink transmission has a lower priority than the second uplink transmission in a priority order (e.g., an NR priority order) associated with the first uplink transmission and the second uplink transmission, the UE may determine whether the total transmit power for the first uplink transmission and the second uplink transmission is lower than a transmit power threshold (e.g.,

[0060]

number

[0061] ), the UE may cancel at least one transmit occasion of the first uplink transmission if the UE would exceed the carrier associated with the first uplink transmission. Canceling a transmit occasion may involve the UE refraining from transmitting on the carrier associated with the first uplink transmission.

[0062] As an example, if the first uplink transmission is a PUSCH transmission without HARQ-ACK information and the second uplink transmission is a PUSCH / PUCCH transmission with HARQ-ACK information, the first uplink transmission may have a lower priority than the second uplink transmission. As another example, if the first uplink transmission is a PUCCH / PUSCH transmission with a lower priority index (e.g., a priority index of 0) and the second uplink transmission is a PUCCH / PUSCH transmission with a higher priority index (e.g., a priority index of 1), the first uplink transmission may have a lower priority than the second uplink transmission.

[0063] In an aspect, the canceled transmission occasion of the first uplink transmission may include a transmission occasion that overlaps in time with the second uplink transmission and / or a subsequent transmission occasion following the overlapping transmission occasion. An overlapping transmission occasion as used herein refers to a transmission occasion (such as transmission occasion 506) in which the first uplink transmission overlaps in time with the second uplink transmission. With respect to operation 600, the at least one transmission occasion (i.e., a canceled transmission occasion associated with the first uplink transmission) may include one or more transmission occasions in which the first uplink transmission overlaps in time with the second uplink transmission. The at least one transmission occasion (i.e., a canceled transmission occasion) may further include one or more subsequent transmission occasions following one or more transmission occasions in which the first uplink transmission overlaps in time with the second uplink transmission.

[0064] If only overlapping transmission occasions are cancelled from the first uplink transmission, power consistency may be assumed for non-canceled transmission occasions associated with the first uplink transmission, including the transmission occasions after the cancellation. That is, the UE may maintain DMRS bundling across discontinuous transmission occasions, e.g., as described further herein with respect to FIG. 7A. In block 606, the UE may allocate consistent transmit power to the first uplink transmission across non-canceled transmission occasions associated with the first uplink transmission, where the non-canceled transmission occasions include the transmission occasions before and after the cancelled transmission. If overlapping transmission occasions and subsequent transmission occasions are cancelled, power consistency may be assumed for the transmission occasions before the cancellation, e.g., as described further herein with respect to FIG. 7B.

[0065] In some aspects, the prioritization for transmit power reduction may temporarily fall back to noncoherent transmission (i.e., transmission without DMRS bundling) for a portion of the DMRS bundled transmission or separate DMRS bundling. These options (e.g., fall back to noncoherent transmission or DMRS bundling separation) may apply regardless of whether the total transmit power of the first uplink transmission and the second uplink transmission would exceed a transmit power threshold. In other words, these options may apply if the UE identifies that a transmission with DMRS bundling overlaps in time with another transmission.

[0066] As an example, if a coherent PUSCH / PUCCH transmission with DMRS bundling overlaps with a higher priority transmission (e.g., a URLLC transmission with priority index 1, or a HARQ-ACK / CSI with the same priority index), a fallback to noncoherent transmission may be assumed for the overlapping transmission occasion, and the transmission occasions before and after the overlapping transmission occasion may be coherent. In an aspect, the overlapping transmission occasion and the subsequent transmission occasion may be allocated less transmit power than the previous slot and may be coherent. In some cases, separating DMRS bundling along the overlapping transmission occasion may be supported, and separating DMRS bundling between the transmission occasions before and after the overlapping transmission occasion may be supported. Even if the same transmit power is used for the transmission occasions before and after the overlapping transmission occasion, the phase may not be continuous across these transmission occasions. In such a case, the DMRS may be assumed to be bundled within each set of transmission occasions (e.g., a transmission occasion before an overlapping transmission occasion, an overlapping transmission occasion, or a transmission occasion after an overlapping transmission occasion), but not across the sets. For example, a higher transmit power (e.g., using the same transmit power as before the collision) may be used for the subsequent transmission occasion to enable the desired performance. The fallback to noncoherent transmission may be transparent to the network side (e.g., the base station and / or the network controller). In other words, if the actual total transmit power is P cmax Regardless of whether or not the UE exceeds the UE coherency limit, the base station may assume that there is no coherency across overlapping transmission occasions. The UE may not dynamically report whether or not coherency is maintained for the current slot.

[0067] In block 604, if the first uplink transmission has a lower priority than the second uplink transmission in a priority order (e.g., NR priority order), the UE may allocate a first transmit power to the first uplink transmission in one or more first transmit occasions occurring before the second uplink transmission, and may allocate a second transmit power to the first uplink transmission in one or more second transmit occasions where the first uplink transmission overlaps in time with the second uplink transmission, provided that the second transmit power is the same (i.e., equal) or less than (i.e., less than) the first transmit power. In other words, the transmit power for the first uplink transmission may or may not be reduced in the overlapping transmit occasions. In some aspects, the base station may assume that there is no coherency across the overlapping transmit occasions (i.e., no DMRS bundling).

[0068] In some aspects, if the DMRS bundled transmission has a lower priority in the priority order (e.g., NR priority order), the UE may separate the DMRS bundling into separate coherent segments across transmission occasions, e.g., as further described herein with respect to Figures 8A and 8B. In block 604, the UE may allocate a second transmit power to the first uplink transmission in one or more third transmit occasions (i.e., subsequent transmit occasions) after the one or more second transmit occasions (i.e., overlapping transmit occasions), such that the DMRS of the first uplink transmission is assumed to be bundled in the one or more first transmit occasions at the first transmit power and bundled in the one or more second transmit occasions and the one or more third transmit occasions at the second transmit power. That is, the first uplink transmission may have DMRS bundling separated into at least two segments, the first segment including one or more first transmission occasions and the second segment including one or more second transmission occasions and one or more third transmission occasions.

[0069] In some aspects, separating the DMRS bundling in block 604 may include allocating a third transmit power to the first uplink transmission in one or more third transmit occasions after the one or more second transmit occasions. In some cases, the third transmit power may be the same as, less than, or greater than the first transmit power. In aspects, the DMRS of the first uplink transmission may be assumed to be bundled in one or more first transmit occasions at the first transmit power, bundled in one or more second transmit occasions at the second transmit power, and bundled in one or more third transmit occasions at the third transmit power.

[0070] In some aspects, if the DMRS bundled transmission has a lower priority in the priority order (e.g., NR priority order), the UE may fall back to noncoherent transmission in the overlapping transmission occasion, e.g., as further described herein with respect to FIG. 8B, and the UE may perform DMRS bundling for the transmission occasions before and after the overlapping transmission occasion. That is, the overlapping transmission occasion may not be coherent, but the transmissions before and after the overlapping transmission occasion may be coherent. In block 604, the UE may allocate a first transmit power to the first uplink transmission in one or more third transmit occasions after the one or more second transmit occasions, such that the DMRS of the first uplink transmission is assumed to be bundled in the one or more first transmit occasions and the one or more third transmit occasions, and not bundled in the one or more second transmit occasions.

[0071] In some aspects, the prioritization for transmit power reduction may prioritize an earlier transmission with DMRS bundling if the overlapping transmissions have the same priority in the priority order (e.g., same order / rank and / or same priority index), e.g., as further described herein with respect to FIG. 9A and FIG. 9B. As an example, if a coherent PUSCH / PUCCH transmission with DMRS bundling overlaps with a second PUCCH / PUSCH transmission with the same priority order, the earlier transmission with DMRS bundling may be assumed to have a higher priority for transmit power allocation regardless of the carrier index (e.g., a transmission with DMRS bundling on an Scell ​​may be prioritized over a transmission on a Pcell, or a transmission on an auxiliary UL carrier may be prioritized over a non-auxiliary UL carrier). The UE may prioritize transmit power allocation for an earlier coherent transmission over a later transmission. This assumption of priority for earlier transmissions with DMRS bundling may also apply to overlapping transmissions with the same priority index. That is, the UE may prioritize transmit power allocation for earlier coherent transmissions regardless of the content of the later transmissions.

[0072] With respect to operation 600, if the first uplink transmission starts earlier than the second uplink transmission, and if the first uplink transmission and the second uplink transmission have the same order in the priority order, the first uplink transmission may be prioritized over the second uplink transmission in the priority order. At block 604, the UE may allocate transmit power between the first uplink transmission and the second uplink transmission based on the first uplink transmission being prioritized over the second uplink transmission. For example, the UE may allocate transmit power to the first uplink transmission that maintains DMRS bundling for the entire duration of the first uplink transmission.

[0073] The same order in the priority order (e.g., NR priority order) may refer to one of the overlapping transmissions having a certain order / rank in the priority order and the other overlapping transmission having that same order / rank. For example, if the overlapping transmissions are PUSCH transmissions with HARQ-ACK information, the overlapping transmissions may have the same order.

[0074] In some aspects, an earlier DMRS bundled transmission may be prioritized in a priority order (e.g., NR priority order) even if the overlapping transmissions have the same priority index. For operation 600, a first uplink transmission may be prioritized over a second uplink transmission even if the first uplink transmission and the second uplink transmission have the same priority index. In some aspects, an earlier DMRS bundled transmission may be prioritized in a priority order even if other overlapping transmissions have DMRS bundling. For operation 600, a first uplink transmission may be prioritized over a second uplink transmission even if the second uplink transmission has DMRS bundling.

[0075] In block 604, the UE may allocate a first transmit power to the first uplink transmission based on the first uplink transmission being prioritized over the second uplink transmission with respect to the earlier DMRS bundled transmission being prioritized. In some aspects, the first transmit power may be constant or consistent during the entire duration of the first uplink transmission. In block 604, the UE may allocate a second transmit power to the second uplink transmission such that the sum of the first transmit power and the second transmit power is equal to or less than a transmit power threshold within one or more transmit occasions. In some cases, the constant or consistent transmit power may have a nominal value with small variations (e.g., ±5% from the nominal value), e.g., due to dynamic operating conditions / characteristics associated with the UE's transmitter. In some cases, the constant or consistent transmit power may be applied in the context of beamforming. For example, constant or consistent transmit power may involve using a set of transmit power weights (which may have distinct or varying weighting values) across the antenna array consistently for the duration of a DMRS bundled transmit occasion, i.e., the same set of transmit power weights (which may vary among antenna elements of the antenna array) may be used for the duration of a DMRS bundled transmit occasion.

[0076] In some aspects, prioritization for transmit power reduction may be based on a timeline condition. For example, an earlier transmission may be prioritized within a certain time window (e.g., T proc,d +d or T proc,CSI +d), prioritization for transmit power reduction may apply various prioritization schemes associated with DMRS bundling (e.g., cancellation of overlapping transmission occasions, noncoherent fallback, or prioritizing earlier DMRS-bundled transmissions). In some cases, an earlier transmission may begin before a time window (e.g., T proc,d +d or T proc,CSI+d), the prioritization for transmit power reduction may allocate transmit power according to a priority order (e.g., an NR priority order) associated with the overlapping transmissions.

[0077] As an example, the earliest symbol of a transmission with DMRS bundling may occur within a certain time window (e.g., T proc +d), the UE may prioritize transmit power allocation according to a priority order associated with the overlapping transmissions. For example, a higher priority transmission may be allocated more transmit power than a lower priority transmission, and a transmission with DMRS bundling may apply its allocated transmit power for the duration of the DMRS bundled transmission occasion. If the earliest symbol of a transmission with DMRS bundling begins some time window (e.g., T proc +d), the UE may apply various prioritization schemes described herein (e.g., cancellation of overlapping transmission occasions, non-coherent fallback, or prioritizing earlier DMRS bundled transmissions).

[0078] For operation 600, the UE may receive information (e.g., DCI, radio resource control (RRC) signaling, medium access control (MAC) signaling, or system information) scheduling a second uplink transmission. In block 604, if the first uplink transmission (e.g., a first symbol in the first uplink transmission) does not start before a time window after the reception of the information (e.g., DCI, or after the last symbol of a PDCCH carrying the DCI), the UE may allocate transmit power according to a priority order (e.g., an NR priority order) associated with the first uplink transmission and the second uplink transmission. The UE may allocate a first transmit power to the first uplink transmission and a second transmit power to the second uplink transmission according to the priority order. In some aspects, the first transmit power may be constant during the entire duration of the first uplink transmission.

[0079] With respect to the operation 600, the UE may receive information scheduling a second uplink transmission. The UE may allocate transmit power based on the first uplink transmission starting before a time window after receipt of the information. For example, the UE may allocate transmit power according to various prioritization schemes associated with DMRS bundling described herein, such as cancellation of overlapping transmission occasions, noncoherent fallback, or prioritizing earlier DMRS bundled transmissions. That is, various prioritization schemes associated with DMRS bundling described herein may be applied in cases when the UE is unable to react in time to determine an appropriate transmit power for a subsequent overlapping transmission.

[0080] In aspects, the time window may have a duration based on various preparation or computation times associated with the UE's processing capabilities. In some cases, the time window may be based on a PUSCH or PUCCH preparation time (e.g., T proc,d ) The time window may have a duration based on the CSI computation time with minimum CSI computation delay (e.g., T proc,CSI) For example, the time window may have a duration according to the following formula: T proc +d However, T proc is the PUSCH / PUCCH preparation time (for example, T proc,d ) or CSI computation time (e.g., T proc,CSI ), where d may be a UE capability (e.g., d∈{0,1,2}) that is reported to the network. In some aspects, T proc is the PUSCH preparation time T proc,d (Minimum throughput 2 transmission numerology μ and N 2 Based on symbols, T proc,2 ), or the CSI calculation delay T proc,CSI (e.g., CSI computation delay requirement 1). In some aspects, T proc,d may be based on a value of μ corresponding to a minimum subcarrier spacing (SCS) configuration among the overlapping transmissions. For example, T proc,d can be 10 symbols for μ=0 by default, 12 symbols for μ=1, 23 symbols for μ=2, and 36 symbols for μ=3.

[0081] In an aspect, DMRS bundling may involve transmitting the DMRS in a transmission with phase continuity (i.e., coherent phase) and constant or consistent transmit power. With respect to operations 600, at block 606, the UE may transmit a first uplink transmission over multiple slots or minislots with phase continuity and consistent transmit power.

[0082] In some aspects, the first and second uplink transmissions may be on separate carriers (e.g., component carriers, for carrier aggregation or operation with a single cell with two uplink carriers). As an example for operation with carrier aggregation, the first uplink transmission may be transmitted via a first component carrier associated with the Pcell, and the second uplink transmission may be transmitted via a second component carrier associated with the Scell. In some cases, in a single cell operation with two uplink carriers (e.g., an auxiliary uplink carrier and a non-auxiliary uplink carrier), the first uplink transmission may be transmitted on the auxiliary uplink carrier, and the second uplink transmission may be transmitted on the non-auxiliary uplink carrier. In other words, the UE may transmit the first uplink transmission via the first carrier and the second uplink transmission via the second carrier.

[0083] In some aspects, the overlapping transmissions may be of various transmission types, for example, the first uplink transmission or the second uplink transmission may include at least one of a PUSCH transmission, a PUCCH transmission, a PRACH transmission, or an SRS transmission.

[0084] In an aspect, the priority order may be a priority hierarchy of transmission types, such as PRACH transmission, PUCCH transmission, PUSCH transmission, and / or SRS transmission. For PUCCH and PUSCH transmissions, the priority order may have a rank associated with the payload type of the transmission (e.g., with or without HARQ-ACK information, SR, LRR, or CSI). The priority order may be, for example, an NR priority order as described herein. The priority order may include a separate rank or order associated with PUCCH / PUSCH transmissions with DMRS bundling. For example, the NR priority order as described herein may further include a separate rank for PUCCH / PUSCH transmissions with the same priority index, except that the separate rank is associated with the transmission with DMRS bundling. In an aspect, the priority hierarchy of the transmission types may include a priority index and a rank associated with the payload type associated with the first uplink transmission and the second uplink transmission.

[0085] FIG. 7A illustrates an example of canceling overlapping transmission occasions of lower priority transmissions with DMRS bundling, according to some aspects of the disclosure. In this example, a first transmission with DMRS bundling (e.g., a PUSCH transmission with DMRS bundling) is scheduled across four slots (slot n to slot n+3) on a first component carrier (CC #0). A second transmission of higher priority (e.g., a URLLC-PUSCH transmission with a priority index of 1) on a second component carrier (CC #1) is scheduled in slot n+2. The UE detects that the first transmission overlaps in time with the second transmission in slot n+2 and that the total transmit power of the first and second transmissions in slot n+2 is less than a threshold transmit power (e.g.,

[0086]

number

[0087] ) for the first transmission. 1 In response to the identification, the UE may cancel a portion of the first transmission in the overlapping transmit occasion (e.g., in slot n+2) because the first transmission may have a consistent transmit power across the non-canceled transmit occasions. For example, the UE may allocate the same transmit power P 1 The cancellation of the first transmission in slot n+2 may cause the UE to allocate transmit power P 2 It may be possible to allocate P 1 and P 2 will exceed the threshold transmit power.

[0088] 7B illustrates an example of canceling overlapping and subsequent transmission occasions of lower priority transmissions with DMRS bundling, according to some aspects of the disclosure. In some cases, the UE may also cancel subsequent transmission occasions following the overlapping transmission occasion. For example, if a higher priority second transmission overlaps in time with the first transmission and the total transmit power would exceed a threshold transmit power, the UE may cancel portions of the first transmission in slots n+2 and n+3.

[0089] FIG. 8A illustrates an example of separating DMRS bundling in overlapping transmission occasions according to some aspects of the disclosure. In this example, a first transmission with DMRS bundling (e.g., a PUSCH transmission with DMRS bundling) may be scheduled across five slots (slots 0-4) on a first component carrier (CC #0). A second transmission of higher priority may also be scheduled on a second component carrier (CC #1) in slot 2. The UE may identify that the first transmission overlaps in time with the second transmission in slot 2. In response to this identification, the UE may determine which portion of the first transmission will have DMRS bundling, as described further herein.

[0090] As an example, the UE may set the transmit power (P 1,s ), where P 1,s P 1 The UE may use transmit power P 2 In an embodiment, P 1,s and P 2 may be less than or equal to the transmit power threshold.

[0091] Referring to FIG. 8A, the first transmission has a transmission power P 1 In , the first transmission may have DMRS bundling in the slots before the overlapping slot (slots 0 and 1). 1 and P 1,s ), a first transmission may have separate DMRS bundling across slots 0 and 1 and slots 2 through 4. That is, the first transmission may have transmit power P 1 In the example, the first transmission may have DMRS bundling in the slots before the overlapping slot (slots 0 and 1), and the second transmission may have transmit power P 1,s In, we may have DMRS bundling in the overlapping slot (slot 2) and subsequent slots (slots 3 and 4).

[0092] 8B illustrates an example of separating DMRS bundling between overlapping transmission occasions according to some aspects of the disclosure. In this example, a first transmission has a transmit power P 1 In the slots before the overlapping slots (slots 0 and 1), the transmit power P 1,s In the overlapping slot (slot 2), and with transmit power P 1 In the first transmission, the UE may separate the DMRS bundling in the slots after the overlapping slot (slots 3 and 4). In some aspects, the first transmission may fall back to a noncoherent transmission only in the overlapping slot. That is, there may be separate DMRS bundling in the slots before and after the overlapping slot, as well as noncoherent transmission in the overlapping slot. In some aspects, separating the DMRS bundling may also be applied for transmission interruption due to an uplink cancellation indication. That is, the UE may receive an indication from a network entity (e.g., a base station or a network controller) to cancel a portion of a transmission with DMRS bundling. For example, the indication may cancel a middle portion of a transmission in the time domain, and the UE may perform DMRS bundling for discontinuous transmission occasions. That is, the cancellation may be limited to a portion of the transmission between the transmission occasions associated with the transmission, such that all remaining transmission occasions following the canceled transmission occasion still continue with DMRS bundling.

[0093] Those skilled in the art will appreciate that the segments of a first transmission described as being coherent (DMRS bundled) or non-coherent shown in Figures 8A and 8B are merely examples. Aspects of the present disclosure may also be applied to separating a DMRS bundled transmission into various DMRS bundled and / or non-coherent segments, where the DMRS bundled transmission has a lower priority than other overlapping transmissions.

[0094] FIG. 9A illustrates an example of prioritizing an earlier transmission with DMRS bundling over another transmission, according to some aspects of the disclosure. In this example, a first transmission with DMRS bundling (e.g., a PUSCH transmission with DMRS bundling) may be scheduled in an Scell ​​across four slots (slot n through slot n+3) on a first component carrier. A second transmission may also be scheduled in a Pcell on a second component carrier in slot n+2. The first and second transmissions may have the same priority in a priority order (e.g., an NR priority order). The UE may identify that the first transmission overlaps in time with the second transmission in slot n+2. In response to this identification, the UE may prioritize the first transmission based on the first transmission starting before the second transmission, rather than the transmission on the Pcell. Such a prioritization order differs from the priority processing as described herein with respect to an NR priority order based on carrier index when two transmissions have the same priority. Prioritizing an earlier DMRS bundled transmission may enable desirable uplink performance, such as desirable data rate, latency, and / or coverage, for the earlier transmission. For example, the UE may allocate a consistent transmit power P 1 Therefore, the transmission power P 1 ensures DMRS bundling from slot n to slot n+3. The UE 1 and P 2 is less than or equal to the transmit power threshold. 2 In some embodiments, P 2 , P 1 It can be the following:

[0095] FIG. 9B illustrates an example of prioritizing an earlier transmission with DMRS bundling over another transmission with DMRS bundling, according to some aspects of the disclosure. In this example, the first and second transmissions may be transmitted on separate carriers of a single cell, and the second transmission may have DMRS bundling in slot n+2 and slot n+3. The first transmission may be on a supplemental uplink (SUL) carrier, and the second transmission may be on a non-supplemental uplink carrier. If the first and second transmissions have the same priority, the UE may prioritize the first transmission based on the first transmission starting before the second transmission, rather than the transmission on the non-supplemental uplink carrier. In an aspect, P 1 and P 2 The first transmission is performed with a transmit power P 1 and the second transmission may have DMRS bundling at 2 In some embodiments, P 2 , P 1 It can be the following:

[0096] FIG. 10A illustrates an example of allocating transmit power according to a priority order based on an earlier transmission not starting before a certain time window, according to certain aspects of the disclosure. In this example, a UE may receive a first DCI on a first component carrier, where the first DCI schedules a first transmission with DMRS bundling across four slots (slot n to slot n+3). The UE may also receive a second DCI on a second component carrier, where the second DCI schedules a second transmission on the second component carrier in slot n+2. The first transmission may start within a time window (e.g., T proc,2 +d or T proc,CSIIf the first transmission is scheduled not to start before P+d, the UE may prioritize the allocation of transmit power according to a priority order (e.g., NR priority order) associated with the first and second transmissions. In this example, the duration between the last symbol of the second DCI and the first symbol of the first transmission may be greater than the time window, causing the UE to apply transmission prioritization based on the priority order associated with the first and second transmissions. Assuming that the first transmission has a lower priority than the second transmission, the UE may prioritize the allocation of transmit power according to a priority order (e.g., NR priority order) associated with the first and second transmissions. 1 and P 2 The sum of is less than or equal to the transmit power threshold, and P 1 P 2 The first transmission is assigned a transmit power P 1 and allocates transmission power P 2 can be allocated.

[0097] FIG. 10B illustrates an example of canceling a transmission occasion for a transmission with DMRS bundling based on an earlier transmission starting before a time window, in accordance with certain aspects of the disclosure. In this example, the duration between the last symbol of the second DCI and the first symbol of the first transmission falls within a time window (e.g., T proc,2 +d or T proc,CSI +d). The first transmission may occur within a time window (e.g., T proc,2 +d or T proc,CSI +d), the UE may apply various schemes of prioritization for transmit power reduction, e.g., as described herein with respect to Figures 7A-9B. In this example, the UE may cancel the overlapping portion of the first transmission, e.g., as described herein with respect to Figure 7A.

[0098] Although the examples shown in Figures 7A, 7B, 8A, 8B, 9A, 10A, and 10B are described herein with respect to having a single overlapping slot between the first and second transmissions for ease of understanding, aspects of the disclosure may also apply to first and second transmissions that overlap across one or more time domain resources, such as symbols, minislots, or slots.

[0099] FIG. 11 is a flow diagram illustrating example operations 1100 for wireless communication according to some aspects of the disclosure. The operations 1100 may be performed, for example, by a network entity (such as BS 110a in wireless communication network 100). The operations 1100 may be complementary to the operations 600 performed by a UE. The operations 1100 may be implemented as software components executed and operated on one or more processors (e.g., controller / processor 240 of FIG. 2). Furthermore, the transmission and reception of signals by the network entity in the operations 1100 may be enabled, for example, by one or more antennas (e.g., antenna 234 of FIG. 2). In some aspects, the transmission and / or reception of signals by the network entity may be implemented via a bus interface of one or more processors (e.g., controller / processor 240) that obtain and / or output the signals. In an aspect, the network entity may include a base station and / or a network controller.

[0100] The operations 1100 may begin at block 1102, where a network entity may identify that a first uplink transmission from a UE overlaps in time with a second uplink transmission from the UE within one or more transmission occasions, the first uplink transmission having DMRS bundling.

[0101] The network entity may receive a signal associated with a first uplink transmission at block 1104. For example, the network entity may receive a PUSCH, a PUCCH, or an SRS transmission as the first uplink transmission from the UE.

[0102] At block 1106, the network entity may perform joint channel estimation with the received signal based on the identification. For example, the network entity may estimate a channel associated with the first uplink signal over multiple transmit occasions (e.g., minislots or slots). That is, the multiple transmit occasions may be used to develop an estimate or model of the channel associated with the first uplink transmission. The channel estimation may enable the network entity to, for example, perform equalization and decode the signal into information bits.

[0103] In some aspects, the network entity may be under the assumption that all of the transmission occasions associated with the first uplink transmission have DMRS bundling. That is, the channel estimation performed by the network entity may assume that all of the transmission occasions associated with the first uplink transmission can be used for joint channel estimation. In block 1106, the network entity may perform joint channel estimation under the assumption that all of the transmission occasions associated with the first uplink transmission have DMRS bundling.

[0104] In some aspects, the network entity may identify which transmission occasion of the first uplink transmission has DMRS bundling for joint channel estimation if the first uplink transmission has a lower priority than the second uplink transmission. In block 1106, if the first uplink transmission has a lower priority than the second uplink transmission in a priority order associated with the first uplink transmission and the second uplink transmission, the network entity may perform joint channel estimation under the assumption that one or more first transmission occasions where the first uplink transmission overlaps in time with the second uplink transmission and one or more second transmission occasions after the one or more first transmission occasions have DMRS bundling. In other words, the network entity may assume that the overlapping transmission occasions and the subsequent transmission occasions have DMRS bundling for joint channel estimation.

[0105] In an aspect, in block 1106, if the first uplink transmission has a lower priority than the second uplink transmission in the priority order, the network entity may perform joint channel estimation under the assumption that one or more first transmission occasions before one or more second transmission occasions where the first uplink transmission overlaps in time with the second uplink transmission and one or more third transmission occasions after the one or more second transmission occasions have DMRS bundling, and the one or more second transmission occasions are canceled. In other words, the network entity may assume that the transmission occasions before and after the overlapping transmission occasions have DMRS bundling for joint channel estimation.

[0106] In some aspects, if the first uplink transmission has a lower priority than the second uplink transmission in the priority order at block 1106, the network entity may perform joint channel estimation under the assumption that the one or more first transmit occasions before the one or more second transmit occasions where the first uplink transmission overlaps in time with the second uplink transmission have DMRS bundling at the first transmit power, and the one or more second transmit occasions and one or more third transmit occasions after the one or more second transmit occasions have DMRS bundling at the second transmit power. That is, the network entity may assume that the transmit occasion before the overlapping transmit occasion has DMRS bundling at the first transmit power, and the overlapping transmit occasion and the subsequent transmit occasion have DMRS bundling at the second transmit power.

[0107] In some aspects, if the first uplink transmission has a lower priority than the second uplink transmission in the priority order at block 1106, the network entity may perform joint channel estimation under the assumption that one or more first transmit occasions before one or more second transmit occasions where the first uplink transmission overlaps in time with the second uplink transmission have DMRS bundling at the first transmit power, one or more second transmit occasions have DMRS bundling at the second transmit power, and one or more third transmit occasions after the one or more second transmit occasions have DMRS bundling at the third transmit power. That is, the network entity may assume that the DMRS bundling may be separated into at least three segments: the first transmit occasion, the second transmit occasion, and the third transmit occasion.

[0108] In some aspects, the network entity may perform joint channel estimation under the assumption that the first uplink transmission is transmitted over multiple slots or minislots with phase continuity and consistent transmit power. Although various aspects are described herein with respect to slot-based DMRS bundling (i.e., DMRS bundling / joint channel estimation across multiple slots), aspects of the present disclosure may also apply to other levels of DMRS bundling, such as minislot-based DMRS bundling.

[0109] 12 illustrates a communications device 1200 that may include various components (e.g., corresponding to means-plus-function components) configured to perform operations for the techniques disclosed herein, such as those illustrated in FIG. 6. The communications device 1200 includes a processing system 1202 coupled to a transceiver 1208 (e.g., a transmitter and / or a receiver). The transceiver 1208 is configured to transmit and receive signals for the communications device 1200 via an antenna 1210, such as various signals as described herein. The processing system 1202 may be configured to perform processing functions for the communications device 1200, including processing signals received by and / or to be transmitted by the communications device 1200.

[0110] The processing system 1202 includes a processor 1204 coupled to a computer-readable medium / memory 1212 via a bus 1206. In some aspects, the computer-readable medium / memory 1212 is configured to store instructions (e.g., computer-executable code) that, when executed by the processor 1204, cause the processor 1204 to perform the operations illustrated in FIG. 6 or other operations to perform various techniques described herein for prioritization for transmit power. In some aspects, the computer-readable medium / memory 1212 stores a code 1214 for identifying, a code 1216 for allocating, and / or a code 1218 for transmitting. In some aspects, the processing system 1202 has a circuit 1222 configured to implement the codes stored in the computer-readable medium / memory 1212. In some aspects, the circuit 1222 is coupled to the processor 1204 and / or the computer-readable medium / memory 1212 via the bus 1206. For example, the circuit 1222 includes a circuit 1224 for identifying, a circuit 1226 for allocating, and / or a circuit 1228 for transmitting.

[0111] 13 illustrates a communications device 1300 that may include various components (e.g., corresponding to means-plus-function components) configured to perform operations for the techniques disclosed herein, such as those illustrated in FIG. 11. The communications device 1300 includes a processing system 1302 coupled to a transceiver 1308 (e.g., a transmitter and / or a receiver). The transceiver 1308 is configured to transmit and receive signals for the communications device 1300 via an antenna 1310, such as various signals as described herein. The processing system 1302 may be configured to perform processing functions for the communications device 1300, including processing signals received by and / or to be transmitted by the communications device 1300.

[0112] The processing system 1302 includes a processor 1304 coupled to a computer-readable medium / memory 1312 via a bus 1306. In some aspects, the computer-readable medium / memory 1312 is configured to store instructions (e.g., computer-executable code) that, when executed by the processor 1304, cause the processor 1304 to perform the operations illustrated in FIG. 11 or other operations to perform various techniques described herein for joint channel estimation. In some aspects, the computer-readable medium / memory 1312 stores code 1314 for identifying, code 1316 for receiving, and / or code 1318 for performing joint channel estimation. In some aspects, the processing system 1302 has a circuit 1322 configured to implement the codes stored in the computer-readable medium / memory 1312. In some aspects, the circuit 1322 is coupled to the processor 1304 and / or the computer-readable medium / memory 1312 via the bus 1306. For example, the circuitry 1322 may include a circuitry 1324 for identifying, a circuitry 1326 for receiving, and / or a circuitry 1328 for performing joint channel estimation.

[0113] Exemplary Aspects In addition to the various aspects described above, specific combinations of aspects are within the scope of the present disclosure, some of which are detailed below.

[0114] Aspect 1: A method of wireless communication by a user equipment, comprising: identifying that a first uplink transmission having demodulation reference signal (DMRS) bundling overlaps in time with a second uplink transmission in one or more transmit occasions; in response to the identification, allocating transmit power between the first uplink transmission and the second uplink transmission in the one or more transmit occasions based on the first uplink transmission having DMRS bundling; and transmitting at least one of the first uplink transmission or the second uplink transmission in the one or more transmit occasions at the allocated transmit power.

[0115] Aspect 2: The method of aspect 1, wherein the step of allocating transmit power includes canceling at least one transmit occasion of the first uplink transmission if a total transmit power for the first uplink transmission and the second uplink transmission would exceed a transmit power threshold if the first uplink transmission has a lower priority than the second uplink transmission in a priority order associated with the first uplink transmission and the second uplink transmission.

[0116] Aspect 3: The method of aspect 2, wherein the at least one transmission occasion includes one or more transmission occasions in which a first uplink transmission overlaps in time with a second uplink transmission.

[0117] Aspect 4: The method of aspect 3, wherein the at least one transmission occasion further includes one or more subsequent transmission occasions after the one or more transmission occasions in which the first uplink transmission overlaps in time with the second uplink transmission.

[0118] Aspect 5: The method according to any of aspects 2 to 4, wherein allocating transmit power includes allocating consistent transmit power to the first uplink transmission across non-canceled transmit occasions.

[0119] Aspect 6: The method of aspect 1, wherein the step of allocating transmit power includes the steps of: allocating a first transmit power to the first uplink transmission in one or more first transmit occasions that occur before the second uplink transmission if the first uplink transmission has a lower priority than the second uplink transmission in a priority order associated with the first uplink transmission and the second uplink transmission; and allocating a second transmit power to the first uplink transmission in one or more second transmit occasions in which the first uplink transmission overlaps in time with the second uplink transmission, wherein the second transmit power is the same as or less than the first transmit power.

[0120] Aspect 7: The method of aspect 6, wherein the step of allocating transmit power includes a step of allocating a second transmit power to the first uplink transmission in one or more third transmit occasions after the one or more second transmit occasions, such that a DMRS of the first uplink transmission is assumed to be bundled in the one or more first transmit occasions at the first transmit power, and bundled in the one or more second transmit occasions and the one or more third transmit occasions at the second transmit power.

[0121] Aspect 8: The method of aspect 6, wherein the step of allocating the transmit power includes the step of allocating a third transmit power to the first uplink transmission within one or more third transmit occasions after the one or more second transmit occasions.

[0122] Aspect 9: The method of aspect 8, wherein the DMRS of a first uplink transmission is assumed to be bundled within one or more first transmission occasions at a first transmit power, bundled within one or more second transmit occasions at a second transmit power, and bundled within one or more third transmit occasions at a third transmit power.

[0123] Aspect 10: The method of aspect 1, wherein if the first uplink transmission starts earlier than the second uplink transmission, and if the first uplink transmission and the second uplink transmission have the same order in a priority order associated with the first uplink transmission and the second uplink transmission, the first uplink transmission is prioritized over the second uplink transmission in the priority order, and the step of allocating transmit power includes the step of allocating transmit power between the first uplink transmission and the second uplink transmission based on the first uplink transmission being prioritized over the second uplink transmission.

[0124] Aspect 11: The method of aspect 10, wherein the first uplink transmission is prioritized over the second uplink transmission in the priority order even if the first uplink transmission and the second uplink transmission have the same priority index.

[0125] Aspect 12: The method according to any of aspects 10 or 11, wherein the first uplink transmission takes precedence over the second uplink transmission in the priority order even if the second uplink transmission has DMRS bundling.

[0126] Aspect 13: The method according to any of aspects 10 to 12, wherein the step of allocating the transmit power includes a step of allocating a first transmit power to the first uplink transmission based on the first uplink transmission being prioritized over the second uplink transmission, and the first transmit power is constant for an entire duration of the first uplink transmission.

[0127] Aspect 14: The method of aspect 13, wherein the step of allocating the transmit power includes a step of allocating a second transmit power to a second uplink transmission such that a sum of the first transmit power and the second transmit power is less than or equal to a transmit power threshold within one or more transmit occasions.

[0128] Aspect 15: The method according to any of aspects 1 to 14, wherein the method further includes receiving information scheduling a second uplink transmission, and wherein allocating the transmit power includes allocating the transmit power based on the first uplink transmission starting before a time window after receipt of the information.

[0129] Aspect 16: The method of aspect 1, wherein the method further includes receiving information scheduling a second uplink transmission, and wherein allocating the transmit power includes allocating the transmit power according to a priority order associated with the first uplink transmission and the second uplink transmission if the first uplink transmission does not begin before a time window after receipt of the information.

[0130] Aspect 17: The method of aspect 16, wherein the step of allocating transmit power includes the step of allocating a first transmit power to the first uplink transmission and a second transmit power to the second uplink transmission according to a priority order, wherein the first transmit power is constant for an entire duration of the first uplink transmission.

[0131] Aspect 18: The method according to any of aspects 15 to 17, wherein the time window has a duration based on a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) preparation time according to a minimum UE processing capability.

[0132] Aspect 19: The method according to any of aspects 15 to 17, wherein the time window has a duration based on a channel state information (CSI) computation time with a minimum CSI computation delay.

[0133] Aspect 20: The method according to any of aspects 1 to 5 or 10 to 19, wherein the step of transmitting the first uplink transmission includes the step of transmitting the first uplink transmission over multiple slots or minislots with phase continuity and consistent transmit power.

[0134] Aspect 21: The method according to any of aspects 1 to 20, wherein the step of transmitting the first uplink transmission and the second uplink transmission includes the step of transmitting the first uplink transmission via a first carrier and transmitting the second uplink transmission via a second carrier.

[0135] Aspect 22: The method according to any of aspects 1 to 21, wherein the first uplink transmission includes at least one of a physical uplink shared channel transmission, a physical uplink control channel transmission, a physical random access channel transmission, or a sounding reference signal transmission.

[0136] Aspect 23: The method according to any of aspects 2, 6, 10, or 15, wherein the priority order is a transmission type priority hierarchy comprising a priority index and a payload type associated with the first uplink transmission and the second uplink transmission.

[0137] Aspect 24: A method of wireless communication by a network entity, comprising: identifying, within one or more transmission occasions, a first uplink transmission from a user equipment (UE) that overlaps in time with a second uplink transmission from the UE, the first uplink transmission having demodulation reference signal (DMRS) bundling; receiving a signal associated with the first uplink transmission; and performing joint channel estimation using the received signal based on the identification.

[0138] Aspect 25: The method of aspect 24, wherein performing joint channel estimation includes performing joint channel estimation under an assumption that all transmission occasions associated with the first uplink transmission have DMRS bundling.

[0139] Aspect 26: The method of aspect 24, wherein the step of performing joint channel estimation includes, if the first uplink transmission has a lower priority than the second uplink transmission in a priority order associated with the first uplink transmission and the second uplink transmission, performing joint channel estimation under an assumption that one or more first transmission occasions in which the first uplink transmission overlaps in time with the second uplink transmission and one or more second transmission occasions after the one or more first transmission occasions have DMRS bundling.

[0140] Aspect 27: The method of aspect 24, wherein the step of performing joint channel estimation includes, if the first uplink transmission has a lower priority than the second uplink transmission in a priority order associated with the first uplink transmission and the second uplink transmission, performing joint channel estimation under an assumption that one or more first transmit occasions before the one or more second transmit occasions at which the first uplink transmission overlaps in time with the second uplink transmission have DMRS bundling at the first transmit power, and that the one or more second transmit occasions and one or more third transmit occasions after the one or more second transmit occasions have DMRS bundling at the second transmit power.

[0141] Aspect 28: The method of aspect 24, wherein the step of performing joint channel estimation includes, if the first uplink transmission has a lower priority than the second uplink transmission in a priority order associated with the first uplink transmission and the second uplink transmission, performing joint channel estimation under an assumption that one or more first transmit occasions prior to one or more second transmit occasions at which the first uplink transmission overlaps in time with the second uplink transmission have DMRS bundling at the first transmit power, the one or more second transmit occasions have DMRS bundling at the second transmit power, and one or more third transmit occasions after the one or more second transmit occasions have DMRS bundling at the third transmit power.

[0142] Aspect 29: The method of aspect 24, wherein the step of performing joint channel estimation includes performing joint channel estimation under an assumption that if the first uplink transmission has a lower priority than the second uplink transmission in a priority order associated with the first uplink transmission and the second uplink transmission, one or more first transmit occasions before the one or more second transmit occasions in which the first uplink transmission overlaps in time with the second uplink transmission and one or more third transmit occasions after the one or more second transmit occasions have DMRS bundling, and the first uplink transmission in the one or more second transmit occasions is canceled.

[0143] Aspect 30: The method according to any of aspects 24 to 28, wherein the step of performing joint channel estimation includes performing joint channel estimation under an assumption that the first uplink transmission is transmitted over multiple slots or minislots with phase continuity and consistent transmit power.

[0144] Aspect 31: An apparatus for wireless communication, comprising: a memory; a processor coupled to the memory, wherein the processor and the memory are configured to: identify a first uplink transmission having demodulation reference signal (DMRS) bundling overlaps in time with a second uplink transmission in one or more transmit occasions, and in response to the identification, allocate transmit power between the first uplink transmission and the second uplink transmission, in the one or more transmit occasions based on the first uplink transmission having DMRS bundling; and a transmitter configured to transmit at least one of the first uplink transmission or the second uplink transmission, in the one or more transmit occasions, at the allocated transmit power.

[0145] Aspect 32: The apparatus of aspect 31, wherein the processor and memory are further configured to cancel at least one transmission occasion of the first uplink transmission if a total transmit power for the first uplink transmission and the second uplink transmission would exceed a transmit power threshold and if the first uplink transmission has a lower priority than the second uplink transmission in a priority ordering associated with the first uplink transmission and the second uplink transmission.

[0146] Aspect 33: The apparatus of aspect 32, wherein the at least one transmission occasion includes one or more transmission occasions in which a first uplink transmission overlaps in time with a second uplink transmission.

[0147] Aspect 34: The apparatus of aspect 33, wherein the at least one transmission occasion further includes one or more subsequent transmission occasions after the one or more transmission occasions in which the first uplink transmission overlaps in time with the second uplink transmission.

[0148] Aspect 35: The apparatus according to aspect 32 or 33, wherein the processor and memory are further configured to allocate a consistent transmit power to the first uplink transmission across non-canceled transmit occasions.

[0149] Aspect 36: The apparatus of aspect 31, wherein the processor and memory are further configured to: allocate a first transmit power to the first uplink transmission in one or more first transmit occasions that occur before the second uplink transmission if the first uplink transmission has a lower priority than the second uplink transmission in a priority order associated with the first uplink transmission and the second uplink transmission; and allocate a second transmit power to the first uplink transmission in one or more second transmit occasions in which the first uplink transmission overlaps in time with the second uplink transmission, wherein the second transmit power is equal to or less than the first transmit power.

[0150] Aspect 37: The apparatus of aspect 36, wherein the processor and memory are further configured to allocate a second transmit power to the first uplink transmission in one or more third transmit occasions after the one or more second transmit occasions, such that a DMRS of the first uplink transmission is assumed to be bundled in the one or more first transmit occasions at the first transmit power, and bundled in the one or more second transmit occasions and the one or more third transmit occasions at the second transmit power.

[0151] Aspect 38: The apparatus of aspect 36, wherein the processor and memory are further configured to allocate a third transmit power to the first uplink transmission in one or more third transmit occasions after the one or more second transmit occasions, wherein a DMRS of the first uplink transmission is assumed to be bundled in the one or more first transmit occasions at the first transmit power, bundled in the one or more second transmit occasions at the second transmit power, and bundled in the one or more third transmit occasions at the third transmit power.

[0152] Aspect 39: The apparatus of aspect 31, wherein if the first uplink transmission starts earlier than the second uplink transmission, and if the first uplink transmission and the second uplink transmission have the same order in a priority order associated with the first uplink transmission and the second uplink transmission, the first uplink transmission is prioritized over the second uplink transmission in the priority order, and the processor and memory are further configured to allocate transmit power between the first uplink transmission and the second uplink transmission based on the first uplink transmission being prioritized over the second uplink transmission.

[0153]

[0071] Aspect 40: The apparatus of aspect 39, wherein the first uplink transmission has priority over the second uplink transmission in the priority order even if the first uplink transmission and the second uplink transmission have the same priority index.

[0154] Example 41: The apparatus according to any of examples 39 or 40, wherein the first uplink transmission takes precedence over the second uplink transmission in the priority order even if the second uplink transmission has DMRS bundling.

[0155] Aspect 42: The apparatus according to any of aspects 39 to 41, wherein the processor and memory are further configured to allocate a first transmit power to the first uplink transmission based on the first uplink transmission being prioritized over the second uplink transmission, wherein the first transmit power is constant for an entire duration of the first uplink transmission.

[0156] Aspect 43: The apparatus of aspect 42, wherein the processor and memory are further configured to allocate a second transmit power to the second uplink transmission such that a sum of the first transmit power and the second transmit power is less than or equal to a transmit power threshold within one or more transmit occasions.

[0157] Aspect 44: The apparatus according to any of aspects 31 to 43, wherein the apparatus further comprises a receiver configured to receive information scheduling the second uplink transmission, and the processor and memory are further configured to allocate transmit power based on the first uplink transmission starting before a time window after receipt of the information.

[0158] Aspect 45: The apparatus of aspect 31, wherein the apparatus further comprises a receiver configured to receive information scheduling the second uplink transmission, and the processor and memory are further configured to allocate transmit power according to a priority order associated with the first uplink transmission and the second uplink transmission if the first uplink transmission does not begin before the time window after receipt of the information.

[0159] Aspect 46: The apparatus of aspect 45, wherein the processor and memory are further configured to allocate a first transmit power to the first uplink transmission and a second transmit power to the second uplink transmission according to a priority order, wherein the first transmit power is constant for an entire duration of the first uplink transmission.

[0160] Aspect 47: The apparatus according to any of aspects 44 to 46, wherein the time window has a duration based on a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) preparation time according to a minimum UE processing capability.

[0161]

[0046] Aspect 48: The apparatus according to any of aspects 44 to 46, wherein the time window has a duration based on a channel state information (CSI) computation time with a minimum CSI computation delay.

[0162]

[0046] Aspect 49: The apparatus according to any of aspects 31-35 or 39-48, wherein the transmitter is further configured to transmit the first uplink transmission over a plurality of slots or minislots with phase continuity and consistent transmit power.

[0163] Aspect 50: The apparatus according to any of aspects 31 to 49, wherein the transmitter is further configured to transmit a first uplink transmission over the first carrier and a second uplink transmission over the second carrier.

[0164] Aspect 51: The apparatus according to any of aspects 31 to 50, wherein the first uplink transmission includes at least one of a physical uplink shared channel transmission, a physical uplink control channel transmission, a physical random access channel transmission, or a sounding reference signal transmission.

[0165] Aspect 52: The apparatus according to any of aspects 32, 36, 39, or 44, wherein the priority order is a transmission type priority hierarchy comprising a priority index and a payload type associated with the first uplink transmission and the second uplink transmission.

[0166] Aspect 53: An apparatus for wireless communications comprising: a receiver configured to receive a signal associated with a first uplink transmission from a user equipment (UE); a memory; and a processor coupled to the memory, wherein the processor and memory are configured to: identify that the first uplink transmission from the UE overlaps in time with a second uplink transmission from the UE within one or more transmit occasions, where the first uplink transmission has demodulation reference signal (DMRS) bundling; and, based on the identification, perform joint channel estimation using the received signal.

[0167]

[0081] Aspect 54: The apparatus of aspect 53, wherein the processor and memory are further configured to perform joint channel estimation under an assumption that all transmission occasions associated with the first uplink transmission have DMRS bundling.

[0168] Aspect 55: The apparatus of aspect 53, wherein the processor and memory are further configured to perform joint channel estimation under an assumption that one or more first transmission occasions in which the first uplink transmission overlaps in time with the second uplink transmission and one or more second transmission occasions after the one or more first transmission occasions have DMRS bundling if the first uplink transmission has a lower priority than the second uplink transmission in a priority order associated with the first uplink transmission and the second uplink transmission.

[0169] Aspect 56: The apparatus of aspect 53, wherein the processor and memory are further configured to perform joint channel estimation under an assumption that, if the first uplink transmission has a lower priority than the second uplink transmission in a priority order associated with the first uplink transmission and the second uplink transmission, the one or more first transmit occasions prior to the one or more second transmit occasions in which the first uplink transmission overlaps in time with the second uplink transmission have DMRS bundling at the first transmit power, and the one or more second transmit occasions and one or more third transmit occasions after the one or more second transmit occasions have DMRS bundling at the second transmit power.

[0170] Aspect 57: The apparatus of aspect 53, wherein the processor and memory are further configured to: perform joint channel estimation under an assumption that, if the first uplink transmission has a lower priority than the second uplink transmission in a priority order associated with the first uplink transmission and the second uplink transmission, one or more first transmit occasions prior to one or more second transmit occasions at which the first uplink transmission overlaps in time with the second uplink transmission have DMRS bundling at the first transmit power, the one or more second transmit occasions have DMRS bundling at the second transmit power, and one or more third transmit occasions after the one or more second transmit occasions have DMRS bundling at the third transmit power.

[0171] Aspect 58: The apparatus of aspect 53, wherein the processor and memory are further configured to perform joint channel estimation under an assumption that if the first uplink transmission has a lower priority than the second uplink transmission in a priority order associated with the first uplink transmission and the second uplink transmission, the one or more first transmit occasions before the one or more second transmit occasions in which the first uplink transmission overlaps in time with the second uplink transmission and the one or more third transmit occasions after the one or more second transmit occasions have DMRS bundling and the first uplink transmissions in the one or more second transmit occasions are canceled.

[0172] Aspect 59: An apparatus for wireless communication comprising: means for identifying that a first uplink transmission having demodulation reference signal (DMRS) bundling overlaps in time with a second uplink transmission in one or more transmit occasions; means for allocating transmit power between the first uplink transmission and the second uplink transmission in the one or more transmit occasions in response to the identification based on the first uplink transmission having DMRS bundling; and means for transmitting at least one of the first uplink transmission or the second uplink transmission in the one or more transmit occasions at the allocated transmit power.

[0173] Aspect 60: An apparatus for wireless communications, comprising: means for identifying that a first uplink transmission from a user equipment (UE) overlaps in time with a second uplink transmission from the UE within one or more transmit occasions, the first uplink transmission having demodulation reference signal (DMRS) bundling; means for receiving a signal associated with the first uplink transmission; and means for performing joint channel estimation using the received signal based on the identification.

[0174] Aspect 61: A computer-readable medium having instructions stored thereon, the instructions being for identifying that a first uplink transmission having demodulation reference signal (DMRS) bundling overlaps in time with a second uplink transmission in one or more transmit occasions, and in response to the identification, allocating transmit power between the first uplink transmission and the second uplink transmission in the one or more transmit occasions based on the first uplink transmission having DMRS bundling, and transmitting at least one of the first uplink transmission or the second uplink transmission in the one or more transmit occasions at the allocated transmit power.

[0175] Aspect 62: A computer-readable medium having instructions stored thereon, the instructions being for identifying a first uplink transmission from a user equipment (UE) that overlaps in time with a second uplink transmission from the UE within one or more transmission occasions, the first uplink transmission having demodulation reference signal (DMRS) bundling, receiving a signal associated with the first uplink transmission, and performing joint channel estimation using the received signal based on the identification.

[0176] The techniques described herein may be used for various wireless communication technologies, such as NR (e.g., 5G NR), 3GPP Long Term Evolution (LTE), LTE Advanced (LTE-A), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), Time Division Synchronous Code Division Multiple Access (TD-SCDMA), and other networks. The terms "network" and "system" are often used interchangeably. A CDMA network may implement a radio technology, such as Universal Terrestrial Radio Access (UTRA), cdma2000, etc. UTRA includes Wideband CDMA (WCDMA), and other variants of CDMA. cdma2000 covers IS-2000, IS-95, and IS-856 standards. A TDMA network may implement a radio technology, such as Global System for Mobile Communications (GSM). An OFDMA network may implement a radio technology such as NR (e.g., 5G RA), Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDMA, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and LTE-A are releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). cdma2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). NR is a new wireless communications technology under development.

[0177] In 3GPP, the term "cell" can refer to a coverage area of ​​a Node B (NB) and / or an NB subsystem serving this coverage area, depending on the context in which the term is used. In an NR system, the terms "cell" and BS, next-generation Node B (gNB or gNode B), access point (AP), distributed unit (DU), carrier, or transmit reception point (TRP) may be used interchangeably. A BS may provide communication coverage for a macrocell, a picocell, a femtocell, and / or other types of cells. A macrocell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UEs with a service subscription. A picocell may cover a relatively small geographic area and may allow unrestricted access by UEs with a service subscription. A femtocell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs having an association with the femtocell (e.g., UEs in a Closed Subscriber Group (CSG), UEs for users in the home, etc.). A BS for a macro cell may be referred to as a macro BS, a BS for a pico cell may be referred to as a pico BS, and a BS for a femto cell may be referred to as a femto BS or a home BS.

[0178] A UE may also be referred to as a mobile station, terminal, access terminal, subscriber unit, station, customer premises equipment (CPE), cellular phone, smartphone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet computer, camera, gaming device, netbook, smartbook, ultrabook, appliance, medical device or equipment, biometric sensor / device, wearable device such as smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet, etc.), entertainment device (e.g., music device, video device, satellite radio, etc.), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, global positioning system device, or any other suitable device configured to communicate over a wireless or wired medium. Some UEs may be considered machine type communication (MTC) devices or evolved MTC (eMTC) devices. MTC UEs and eMTC UEs include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, a location tag, etc., that may communicate with a BS, another device (e.g., a remote device), or some other entity. A wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered Internet of Things (IoT) devices, which may be narrowband IoT (NB-IoT) devices.

[0179] In some examples, access to the air interface may be scheduled. A scheduling entity (e.g., a BS) allocates resources for communication between some or all devices and equipment within its service area or cell. The scheduling entity may be responsible for scheduling, allocating, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduled communication, the subordinate entities utilize resources allocated by the scheduling entity. A base station is not the only entity that may function as a scheduling entity. In some examples, a UE may function as a scheduling entity and may schedule resources for one or more subordinate entities (e.g., one or more other UEs), and the other UEs may utilize the resources scheduled by the UE for wireless communication. In some examples, a UE may function as a scheduling entity in a peer-to-peer (P2P) network and / or in a mesh network. In a mesh network example, the UEs may communicate directly with each other in addition to communicating with the scheduling entity.

[0180] The methods disclosed herein comprise one or more steps or actions for achieving the method. The method steps and / or actions may be interchanged with one another. In other words, unless a specific order of steps or actions is specified, the order and / or use of specific steps and / or actions may be modified.

[0181] As used herein, a phrase referring to "at least one of" a list of items refers to any combination of those items, including single members. As an example, "at least one of a, b, or c" is intended to encompass a, b, c, ab, ac, bc, and abc, as well as any combination having multiples of the same element (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other permutation of a, b, and c).

[0182] As used herein, the term "determining" encompasses a wide variety of actions. For example, "determining" may include calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, database, or another data structure), ascertaining, and the like. Also, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), and the like. Also, "determining" may include resolving, selecting, choosing, establishing, and the like.

[0183] The above description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. Reference to an element in the singular does not mean "the one and only" unless so expressly stated, but means "one or more". Unless otherwise stated, the term "several" refers to one or more. All structural and functional equivalents of the elements of the various aspects described throughout this disclosure that are known or that later become known to those skilled in the art are expressly incorporated herein by reference and are intended to be encompassed by the claims. Moreover, nothing disclosed herein is made public, regardless of whether such disclosure is expressly recited in the claims. An element of a claim shall not be construed under the provisions of 35 U.S.C. 112(f) unless the element is expressly recited using the phrase "means for" or, in the case of a method claim, unless the element is recited using the phrase "step for".

[0184] The various operations of the methods described above may be performed by any suitable means capable of performing the corresponding functions. The means may include various hardware and / or software components and / or modules, including, but not limited to, circuits, digital signal processors (DSPs), application specific integrated circuits (ASICs), or processors (e.g., general-purpose or specially programmed processors). In general, where there are operations illustrated in figures, those operations may have corresponding counterpart means-plus-function components that are similarly numbered.

[0185] The various example logic blocks, modules, and circuits described in connection with this disclosure may be implemented or performed using a general purpose processor, a DSP, an ASIC, a field programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but alternatively, the processor may be any commercially available processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0186] When implemented in hardware, an exemplary hardware configuration may comprise a processing system in a wireless node. The processing system may be implemented using a bus architecture. The bus may include any number of interconnected buses and bridges depending on the particular application and overall design constraints of the processing system. The bus may link various circuits together, including the processor, the machine-readable medium, and the bus interface. The bus interface may be used to connect, among other things, a network adapter to the processing system via the bus. The network adapter may be used to implement the signal processing functions of the PHY layer. In the case of a user terminal (see FIG. 1), a user interface (e.g., keypad, display, mouse, joystick, etc.) may also be connected to the bus. The bus may also link various other circuits, such as timing sources, peripherals, voltage regulators, power management circuits, etc., which are well known in the art and therefore will not be described further. The processor may be implemented using one or more general-purpose and / or special-purpose processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuits capable of executing software. Those skilled in the art will recognize how to best implement the described functionality for a processing system depending on the particular application and the overall design constraints imposed on the overall system.

[0187] If implemented in software, the functions may be stored on or transmitted over a computer-readable medium as one or more instructions or code. Software shall be broadly construed to mean instructions, data, or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. Computer-readable media includes both computer storage media and communication media, including any medium that facilitates transfer of a computer program from one place to another. A processor may be responsible for general processing, including managing a bus and executing software modules stored on a machine-readable storage medium. A computer-readable storage medium may be coupled to a processor such that the processor can read information from and write information to the storage medium. Alternatively, the storage medium may be integral to the processor. By way of example, a machine-readable medium may include a transmission line, a carrier wave modulated by data, and / or a computer-readable storage medium having instructions stored thereon separate from a wireless node, all of which may be accessed by a processor through a bus interface. Alternatively or additionally, the machine-readable medium or any portion thereof may be integrated into the processor, such as a cache and / or a general-purpose register file. Examples of machine-readable storage media may include, by way of example, a RAM (random access memory), a flash memory, a ROM (read-only memory), a PROM (programmable read-only memory), an EPROM (erasable programmable read-only memory), an EEPROM (electrically erasable programmable read-only memory), a register, a magnetic disk, an optical disk, a hard drive, or any other suitable storage medium, or any combination thereof. The machine-readable medium may be embodied in a computer program product.

[0188] A software module may comprise a single instruction or many instructions and may be distributed across several different code segments, among different programs, and across multiple storage media. A computer-readable medium may comprise several software modules. A software module includes instructions that, when executed by a device such as a processor, cause a processing system to perform various functions. A software module may include a transmitting module and a receiving module. Each software module may reside in a single storage device or be distributed across multiple storage devices. As an example, a software module may be loaded into RAM from a hard drive when a trigger event occurs. During execution of a software module, a processor may load some of the instructions into a cache to increase access speed. One or more cache lines may then be loaded into a general-purpose register file to be executed by the processor. When referring to a function of a software module below, it will be understood that such function is implemented by a processor when executing instructions from that software module.

[0189] Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared (IR), radio, and microwave, the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. As used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, where disks typically reproduce data magnetically while discs reproduce data optically using lasers. Thus, in some aspects computer-readable medium may comprise non-transitory computer-readable medium (e.g., tangible media). Additionally, in other aspects, computer-readable medium may comprise transitory computer-readable medium (e.g., a signal). Combinations of the above may also be considered examples of computer-readable media.

[0190] Accordingly, some aspects may comprise a computer program product for performing the operations presented herein. For example, such a computer program product may comprise a computer-readable medium having instructions stored (and / or encoded) thereon, the instructions being executable by one or more processors to perform the operations described herein, e.g., instructions for performing the operations described herein and illustrated in FIG. 6 and / or FIG. 11.

[0191] Further, it should be appreciated that modules and / or other suitable means for performing the methods and techniques described herein may be downloaded and / or otherwise obtained by a user terminal and / or base station, where applicable. For example, such devices may be coupled to a server to facilitate the transfer of means for performing the methods described herein. Alternatively, the various methods described herein may be provided via a storage means (e.g., a physical storage medium such as RAM, ROM, a compact disk (CD) or a floppy disk) such that the user terminal and / or base station may obtain the various methods upon coupling or providing the storage means to the device. Moreover, any other suitable technique for providing the methods and techniques described herein to a device may be utilized.

[0192] It should be understood that the claims are not limited to the precise configuration and components illustrated above. Various modifications, changes and variations may be made in the arrangement, operation and details of the methods and apparatus described above. [Explanation of symbols]

[0193] 100 Wireless Communication Networks 102a, 102b, 102c Macrocells 102x picocell 102y, 102z Femtocell 110 BS, Mobile BS 110a, 110b, 110c, 110x, 110y, 110z BS 110a~z Base station (BS) 110r relay station 112 Channel Estimation Manager 120, 120a, 120r, 120x, 120y UE 120a~y User equipment (UE) 122 DMRS Bundling Manager 130 Network Controller 132 Core Network 212, 262 Data source 220, 264 Transmit Processor, Processor 230 Transmit (TX) Multiple Input Multiple Output (MIMO) Processor, Processor 232a~232t, 254a~254r, 1208, 1308 transceiver 234, 234a~234t, 252, 252a~252r, 1210, 1310 Antennas 236, 256 MIMO detector 238, 258 Receiver Processor, Processor 239, 260 Data Sink 240, 280 Controller / Processor 241 Channel Estimation Manager 242, 282 memory 244 Scheduler 266 TX MIMO Processor, Processor 281 DMRS Bundling Manager 300 Frame Format 502 PUSCH transmission 504 PUCCH transmission 506 Sending Occasion 1200, 1300 Communication Devices 1202, 1302 Processing Systems 1204, 1304 processors 1206, 1306 Bus 1212, 1312 Computer-readable medium / memory 1214, 1314 Identification code 1216 Code for allocation 1218 code to send 1222, 1322 circuits Circuit for identifying 1224 and 1324 1226 Circuit for allocation 1228 Transmitting Circuit 1316 Receive Code 1318 Code for performing joint channel estimation 1326 Receiving Circuit Circuit for performing joint channel estimation

Claims

1. 1. An apparatus for wireless communication, comprising: Memory, a processor coupled to the memory, the processor and the memory comprising: Identifying a first uplink transmission having demodulation reference signal (DMRS) bundling overlapping in time with a second uplink transmission within one or more transmission occasions; and In response to the identifying, allocating transmit power between the first uplink transmission and the second uplink transmission in the one or more transmit occasions based on the first uplink transmission having the DMRS bundling. a processor coupled to the memory configured to: a transmitter configured to transmit at least one of the first uplink transmission or the second uplink transmission within the one or more transmit occasions at the allocated transmit power; Equipped with when the processor and the memory determine a priority associated with the first uplink transmission and the second uplink transmission, the first uplink transmission having a lower priority than the second uplink transmission; allocating a first transmit power to the first uplink transmission within one or more first transmit occasions occurring before the second uplink transmission; and allocating a second transmit power to the first uplink transmission in one or more second transmit occasions in which the first uplink transmission overlaps in time with the second uplink transmission, the second transmit power being equal to or less than the first transmit power. The apparatus is further configured to:

2. An apparatus for wireless communication, comprising: Memory, a processor coupled to the memory, the processor and the memory comprising: Identifying a first uplink transmission having demodulation reference signal (DMRS) bundling overlapping in time with a second uplink transmission within one or more transmission occasions; and In response to the identifying, allocating transmit power between the first uplink transmission and the second uplink transmission in the one or more transmit occasions based on the first uplink transmission having the DMRS bundling. a processor coupled to the memory configured to: a transmitter configured to transmit at least one of the first uplink transmission or the second uplink transmission within the one or more transmit occasions at the allocated transmit power; a receiver configured to receive information scheduling the second uplink transmission; Equipped with the processor and the memory are further configured to allocate the transmit power according to priorities associated with the first uplink transmission and the second uplink transmission if the first uplink transmission does not begin before a time window after the receipt of the information.

3. 3. The apparatus of claim 1, wherein the processor and the memory are further configured to cancel at least one transmit occasion of the first uplink transmission if a total transmit power for the first uplink transmission and the second uplink transmission would exceed a transmit power threshold and if the first uplink transmission has a lower priority than the second uplink transmission in a priority order associated with the first uplink transmission and the second uplink transmission.

4. 4. The apparatus of claim 3, wherein the at least one transmission occasion includes the one or more transmission occasions in which the first uplink transmission overlaps in time with the second uplink transmission.

5. 5. The apparatus of claim 4, wherein the at least one transmission occasion further includes one or more subsequent transmission occasions after the one or more transmission occasions in which the first uplink transmission overlaps in time with the second uplink transmission.

6. 4. The apparatus of claim 3, wherein the processor and the memory are further configured to allocate a consistent transmit power to the first uplink transmission across non-canceled transmit occasions.

7. when the processor and the memory determine a priority associated with the first uplink transmission and the second uplink transmission, the first uplink transmission having a lower priority than the second uplink transmission; allocating a first transmit power to the first uplink transmission within one or more first transmit occasions occurring before the second uplink transmission; and allocating a second transmit power to the first uplink transmission in one or more second transmit occasions in which the first uplink transmission overlaps in time with the second uplink transmission, the second transmit power being equal to or less than the first transmit power. The apparatus of claim 2 , further configured to:

8. The processor and the memory allocating the second transmit power to the first uplink transmission in one or more third transmit occasions after the one or more second transmit occasions, such that the DMRS of the first uplink transmission are assumed to be bundled in the one or more first transmit occasions at the first transmit power and bundled in the one or more second transmit occasions and the one or more third transmit occasions at the second transmit power. The apparatus of claim 1 or 7, further configured to:

9. The processor and the memory allocating a third transmit power to the first uplink transmission in one or more third transmit occasions after the one or more second transmit occasions, wherein the DMRS of the first uplink transmission are assumed to be bundled in the one or more first transmit occasions at the first transmit power, bundled in the one or more second transmit occasions at the second transmit power, and bundled in the one or more third transmit occasions at the third transmit power. The apparatus of claim 1 or 7, further configured to:

10. if the first uplink transmission starts earlier than the second uplink transmission, and if the first uplink transmission and the second uplink transmission have the same ranking in a priority order associated with the first uplink transmission and the second uplink transmission, the first uplink transmission is prioritized over the second uplink transmission in the priority order; 3. The apparatus of claim 1, wherein the processor and the memory are further configured to allocate the transmit power between the first uplink transmission and the second uplink transmission based on a priority of the first uplink transmission over the second uplink transmission.

11. 11. The apparatus of claim 10, wherein the first uplink transmission is prioritized over the second uplink transmission in the priority order even if the first uplink transmission and the second uplink transmission have the same priority index.

12. 11. The apparatus of claim 10, wherein the first uplink transmission is prioritized in the priority order over the second uplink transmission even if the second uplink transmission has DMRS bundling.

13. 11. The apparatus of claim 10, wherein the processor and the memory are further configured to allocate a first transmit power to the first uplink transmission based on the first uplink transmission being prioritized over the second uplink transmission, wherein the first transmit power is constant for an entire duration of the first uplink transmission.

14. 14. The apparatus of claim 13, wherein the processor and the memory are further configured to allocate a second transmit power to the second uplink transmission such that a sum of the first transmit power and the second transmit power is less than or equal to a transmit power threshold within the one or more transmit occasions.

15. The apparatus, a receiver configured to receive information scheduling the second uplink transmission; Further equipped with 3. The apparatus of claim 1, wherein the processor and the memory are further configured to allocate the transmit power based on the first uplink transmission starting before a time window after the reception of the information.

16. The apparatus, a receiver configured to receive information scheduling the second uplink transmission; Further equipped with 2. The apparatus of claim 1, wherein the processor and the memory are further configured to allocate the transmit power according to priorities associated with the first uplink transmission and the second uplink transmission if the first uplink transmission does not begin before a time window after the receipt of the information.

17. the processor and the memory are further configured to allocate a first transmit power to the first uplink transmission and a second transmit power to the second uplink transmission according to the priority; 17. The apparatus of claim 2 or 16, wherein the first transmit power is constant for an entire duration of the first uplink transmission.

18. 16. The apparatus of claim 15, wherein the time window has a duration based on a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) preparation time according to a minimum UE processing capability.

19. 16. The apparatus of claim 15, wherein the time window has a duration based on a channel state information (CSI) computation time with a minimum CSI computation delay.

20. 3. The apparatus of claim 1, wherein the transmitter is further configured to transmit the first uplink transmission over multiple slots or minislots with phase continuity and consistent transmit power.

21. 3. The apparatus of claim 1, wherein the transmitter is further configured to transmit the first uplink transmission over a first carrier and to transmit the second uplink transmission over a second carrier.

22. 3. The apparatus of claim 1, wherein the first uplink transmission comprises at least one of a physical uplink shared channel transmission, a physical uplink control channel transmission, a physical random access channel transmission, or a sounding reference signal transmission.

23. 4. The apparatus of claim 3, wherein the priority is a transmission type priority hierarchy comprising a priority index and a payload type associated with the first uplink transmission and the second uplink transmission.

24. 1. A method of wireless communication by a user equipment, comprising: identifying a first uplink transmission having demodulation reference signal (DMRS) bundling that overlaps in time with a second uplink transmission within one or more transmission occasions; in response to the identifying, allocating transmit power between the first uplink transmission and the second uplink transmission in the one or more transmit occasions based on the first uplink transmission having the DMRS bundling; transmitting at least one of the first uplink transmission or the second uplink transmission within the one or more transmit occasions at the allocated transmit power; Including, if a priority associated with the first uplink transmission and the second uplink transmission, the first uplink transmission has a lower priority than the second uplink transmission; allocating a first transmit power to the first uplink transmission within one or more first transmit occasions occurring before the second uplink transmission; and allocating a second transmit power to the first uplink transmission in one or more second transmit occasions in which the first uplink transmission overlaps in time with the second uplink transmission, the second transmit power being equal to or less than the first transmit power; The method further comprising:

25. A method of wireless communication by a user equipment, comprising: identifying a first uplink transmission having demodulation reference signal (DMRS) bundling that overlaps in time with a second uplink transmission within one or more transmission occasions; in response to the identifying, allocating transmit power between the first uplink transmission and the second uplink transmission in the one or more transmit occasions based on the first uplink transmission having the DMRS bundling; transmitting at least one of the first uplink transmission or the second uplink transmission within the one or more transmit occasions at the allocated transmit power; receiving information scheduling the second uplink transmission; Including, if the first uplink transmission does not commence before a time window after the receipt of the information, allocating the transmit power according to a priority associated with the first uplink transmission and the second uplink transmission. The method further comprising:

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