Capability signaling for uplink demodulation reference signal bundling - Patents.com

Abstract

Methods, systems, and devices for wireless communications are described. Generally, a UE may transmit a first control message to a network entity reporting a bundled transmission capability of the UE to transmit multiple bundled uplink transmissions and maintain phase continuity for multiple physical uplink channels, receive control signaling from the network entity to schedule the multiple physical uplink channels according to the bundled transmission capability, and transmit the multiple physical uplink channels with phase continuity based at least in part on the control signaling.

Description

[Technical field]

[0001] cross reference This patent application claims the benefit of U.S. Provisional Patent Application No. 63 / 186,561, filed May 10, 2021, and entitled "CAPABILITY SIGNALING FOR UPLINK DEMODULATION REFERENCE SIGNAL BUNDLING," by SRIDHARAN et al., and U.S. Patent Application No. 17 / 739,016, filed May 6, 2022, and entitled "CAPABILITY SIGNALING FOR UPLINK DEMODULATION REFERENCE SIGNAL BUNDLING," by SRIDHARAN et al., each of which is assigned to the present application.

[0002] The following relates to wireless communications including capability signaling for uplink demodulation reference signal bundling. [Background technology]

[0003] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasts, and the like. These systems may be capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include fourth generation (4G) systems, such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems, sometimes referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM), etc. A wireless multiple-access communication system may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, which may in some cases be known as user equipment (UE). Summary of the Invention [Means for solving the problem]

[0004] The described techniques relate to improved methods, systems, devices and apparatus, as well as computer-readable media and computer programs, for supporting capability signaling transmission. The present application provides the solutions defined in the independent claims. Optional variants are defined in the dependent claims.

[0005] In general, a UE may report a demodulation reference signal (DMRS) bundling capability of the UE for maintaining phase continuity across multiple uplink channels (e.g., multiple uplink transmissions on a physical uplink channel) when an intervening time gap occurs between consecutive uplink transmissions. For example, consecutive uplink transmissions may include a first transmission and a second transmission that are adjacent or consecutive in time (e.g., transmissions in adjacent slots) and a time gap between the first transmission and the second transmission (e.g., a time gap of symbols in a slot that includes the first transmission), among other examples. In some examples, the first transmission may be located in a first slot and the second transmission may be located in a third slot (e.g., following an intervening second slot). The transmissions may be consecutive and thus referred to as consecutive transmissions, but separated by a time gap (e.g., an intervening second slot). In some examples, the first transmission and the second transmission may be located in adjacent slots (e.g., may be referred to as consecutive, adjacent, or consecutive). However, the first transmission may not occupy the entire slot and the remaining portion of the first adjacent slot, such that the time gap resulting between consecutive uplink transmissions may include one or more symbols of the consecutive slots (e.g., the remaining portion of the first slot not occupied by the first transmission may be the gap between the first transmission in the first slot and the second transmission in the second slot). The UE may transmit a control message including the capability information, and the network entity may configure the uplink transmission accordingly such that the UE may maintain uplink phase continuity across the intervening time gap. In some examples, the UE may indicate that it is capable of maintaining phase continuity across multiple uplink channels even when there is an intervening time gap between at least one pair of consecutive uplink transmissions.

[0006] The capability information may include indicating whether the UE can maintain phase continuity over a set of uplink transmissions, in the same slot or across multiple slots. The capability information may also indicate whether the UE can maintain phase continuity over a set of uplink channels, such as when uplink or downlink signaling is scheduled within an intervening time gap between at least one consecutive pair of bundled uplink channels (e.g., a pair of bundled uplink channels that are consecutive in time), when the UE can maintain phase continuity over a set of bundled uplink channels when switching to a transmission chain or component carrier (CC) for transmission of one or more uplink channels, or when the UE can maintain phase continuity over a set of bundled uplink channels transmitted across different carriers. The capability information may be indicated per band, per subcarrier spacing, per modulation and coding scheme (MCS), etc. In some examples, the UE may indicate a maximum duration for a time gap, or a maximum amount of a time gap for which uplink or downlink signaling may be scheduled, a minimum time between the end of an intervening uplink or downlink signal and the next uplink transmission, or any combination thereof.

[0007] A method for wireless communication in a user equipment (UE) is described that may include transmitting a first control message to a network entity reporting a bundled transmission capability of the UE that maintains phase continuity for a set of multiple physical uplink channels (e.g., multiple uplink transmissions on one or more physical uplink channels), receiving control signaling from the network entity based on the first control message that schedules the set of multiple physical uplink channels according to the reported capability, and transmitting, based on the control signaling, the set of multiple physical uplink channels with phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels.

[0008] An apparatus for wireless communication in a UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor and may cause the apparatus to transmit a first control message to a network entity reporting a bundled transmission capability of the UE to maintain phase continuity for a set of multiple physical uplink channels, receive control signaling from the network entity based on the first control message to schedule the set of multiple physical uplink channels according to the bundled transmission capability, and transmit, based on the control signaling, the set of multiple physical uplink channels with phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels.

[0009] Another apparatus for wireless communications in a UE is described. The apparatus may include means for transmitting a first control message to a network entity reporting a bundled transmission capability of the UE to maintain phase continuity for a set of multiple physical uplink channels, means for receiving control signaling from the network entity based on the first control message to schedule the set of multiple physical uplink channels according to the bundled transmission capability, and means for transmitting, based on the control signaling, the set of multiple physical uplink channels with phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels.

[0010] A non-transitory computer readable medium storing code for wireless communication in a UE is described. Similarly, a computer program including code for wireless communication in a UE is described. The code may include instructions executable by a processor to cause: transmitting a first control message to a network entity reporting a bundled transmission capability of the UE to maintain phase continuity for a set of multiple physical uplink channels; receiving control signaling from the network entity based on the first control message to schedule the set of multiple physical uplink channels according to the bundled transmission capability; and transmitting, based on the control signaling, the set of multiple physical uplink channels having phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels.

[0011] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, at least two consecutive physical uplink channels of the set of multiple physical uplink channels may be separated by a time period.

[0012] In some examples of the methods, apparatus, computer programs, and non-transitory computer readable media described herein, the time period is of shorter duration than a slot.

[0013] In some examples of the methods, apparatus, computer programs, and non-transitory computer readable media described herein, the time period is a duration of a slot or greater.

[0014] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include acts, features, means, or instructions for transmitting the first control message indicating that the UE may be capable of maintaining phase continuity for a set of multiple physical uplink channels that may be scheduled across a set of multiple time slots.

[0015] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, at least a portion of the set of multiple time slots may be contiguous in time within the set of multiple time slots.

[0016] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include operations, features, means, or instructions for transmitting the first control message indicating a frequency band, a modulation and coding scheme, or both, associated with the bundled transmission capability.

[0017] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include operations, features, means, or instructions for transmitting the first control message indicating whether the UE may be able to maintain phase continuity for the set of multiple physical uplink channels when at least one of the set of multiple physical uplink channels includes one or more intervening non-bundled transmissions.

[0018] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include an operation, feature, means, or instruction for receiving a second control message from a network entity indicating a change in the timeslot format, and transmitting the first control message may be based on receiving the second control message.

[0019] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include acts, features, means, or instructions for transmitting the first control message indicating that the UE may be capable of maintaining phase continuity for the set of multiple physical uplink channels when the set of multiple physical uplink channels are scheduled within the same time slot.

[0020] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include acts, features, means, or instructions for transmitting the first control message indicating that the UE may be capable of maintaining phase continuity for a set of multiple physical uplink channels that may be scheduled across a set of multiple time slots.

[0021] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, at least a portion of the set of multiple time slots may be contiguous in time within the set of time slots.

[0022] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include operations, features, means, or instructions for transmitting the first control message indicating a frequency band, subcarrier spacing, modulation and coding scheme, or any combination thereof, associated with the bundled transmission capability.

[0023] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include operations, features, means, or instructions for transmitting the first control message indicating a threshold number of time slots for a time period between at least two consecutive physical uplink channels over which the UE can maintain phase continuity.

[0024] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include acts, features, means, or instructions for transmitting the first control message requesting that the network entity refrain from scheduling uplink transmissions, or downlink transmissions, or both, for the UE during a period of time.

[0025] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include acts, features, means, or instructions for transmitting a first control message indicating that the UE supports scheduling of one or more downlink transmissions during a time period, one or more reference signal measurement durations, or any combination thereof.

[0026] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include acts, features, means, or instructions for transmitting the first control message indicating that the UE supports scheduling of one or more uplink transmissions for the time period.

[0027] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving control signaling may include acts, features, means, or instructions for receiving control signaling that configures a same set of parameter values ​​for each transmission of a set of multiple physical uplink channels and for one or more uplink transmissions.

[0028] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, the same set of parameters may include operations, features, means, or instructions for bandwidth, transmit power, modulation order, number of layers, antenna ports, transmitted precoding matrix indicators, carriers, transmit chain switching configurations, or any combination thereof.

[0029] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include operations, features, means, or instructions for transmitting the first control message indicating that the UE supports scheduling of one or more intervening uplink transmissions during a first portion of a time period, a second portion of a time period including a transmission gap after an intervening scheduled transmission, or any combination thereof.

[0030] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include acts, features, means, or instructions for transmitting the first control message indicating a maximum duration for a period of time between at least two consecutive physical uplink channels over which the UE can maintain phase continuity.

[0031] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include acts, features, means, or instructions for transmitting the first control message indicating that the UE supports transmission of a set of multiple physical uplink channels, which may all be scheduled within the same frame.

[0032] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include operations, features, means, or instructions for transmitting a first control message indicating that the UE may be capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across a set of multiple carriers in carrier aggregation.

[0033] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include operations, features, means, or instructions for transmitting a first control message indicating that the UE may be capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across a first carrier in the set of multiple carriers during a first transmission window that may be time-aligned to a second transmission window of a second carrier in the set of multiple carriers.

[0034] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting the first control message may include acts, features, means, or instructions for transmitting the first control message indicating that the UE may be capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across a set of multiple transmit chains.

[0035] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, the set of physical uplink channels may include operations, features, means, or instructions for a set of physical uplink shared channels, a set of physical uplink control channels, or both.

[0036] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, the set of multiple physical uplink channels may include operations, features, means, or instructions for multiple repeating sets of the same physical uplink channel, or two or more different physical uplink channels scheduled by multiple sets of downlink control information messages, or any combination thereof.

[0037] A method of wireless communication in a network entity is described, which may include, to an apparatus, receiving from a UE a first control message reporting a bundled transmission capability of the UE to maintain phase continuity for a set of multiple physical uplink channels, transmitting control signaling to the UE based on the first control message to schedule the set of multiple physical uplink channels according to the bundled transmission capability, and receiving, based on the control signaling, the set of multiple physical uplink channels with phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels.

[0038] An apparatus for wireless communication in a network entity is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor and may cause the apparatus to receive a first control message from the UE reporting a bundled transmission capability of the UE to maintain phase continuity for a set of multiple physical uplink channels, transmit control signaling to the UE based on the first control message to schedule the set of multiple physical uplink channels according to the bundled transmission capability, and receive, based on the control signaling, the set of multiple physical uplink channels with phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels.

[0039] Another apparatus for wireless communication in a network entity is described, which may include means for receiving from a UE a first control message reporting a bundled transmission capability of the UE that maintains phase continuity for a set of multiple physical uplink channels, means for transmitting control signaling to the UE based on the first control message, the control signaling scheduling the set of the multiple physical uplink channels according to the bundled transmission capability, and means for receiving, based on the control signaling, the set of the multiple physical uplink channels with phase continuity and a set of multiple demodulation reference signals corresponding to the set of the multiple physical uplink channels.

[0040] A non-transitory computer readable medium storing code for wireless communication in a network entity is described. Similarly, a computer program including code for wireless communication in a network entity is described. The code may include instructions executable by a processor, the instructions may cause: to receive from a UE a first control message reporting a bundled transmission capability of the UE to maintain phase continuity for a set of a plurality of physical uplink channels; to transmit control signaling to the UE based on the first control message, the control signaling scheduling the set of the plurality of physical uplink channels according to the bundled transmission capability; and to receive, based on the control signaling, the set of the plurality of physical uplink channels having phase continuity and a set of a plurality of demodulation reference signals corresponding to the set of the plurality of physical uplink channels.

[0041] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, at least two consecutive physical uplink channels of the set of multiple physical uplink channels may be separated by a time period.

[0042] In some examples of the methods, apparatus, computer programs, and non-transitory computer readable media described herein, the time period is of shorter duration than a slot.

[0043] In some examples of the methods, apparatus, computer programs, and non-transitory computer readable media described herein, the time period is a duration of a slot or greater.

[0044] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving the first control message may include an operation, feature, means, or instruction for transmitting a second control message to the UE indicating the change in the timeslot format, and receiving the first control message may be based on transmitting the second control message.

[0045] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving the first control message may include acts, features, means, or instructions for receiving a first control message indicating that the UE may be capable of maintaining phase continuity for the set of multiple physical uplink channels when the set of multiple physical uplink channels are scheduled within the same time slot.

[0046] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving the first control message may include acts, features, means, or instructions for receiving a first control message indicating that the UE may be capable of maintaining phase continuity for a set of multiple physical uplink channels that may be scheduled across a set of multiple time slots.

[0047] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, at least a portion of the set of multiple time slots may be contiguous in time within the set of time slots.

[0048] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving a first control message may include operations, features, means, or instructions for receiving a first control message indicating a frequency band, subcarrier spacing, modulation and coding scheme, or any combination thereof, associated with the bundled transmission capability.

[0049] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving the first control message may include acts, features, means, or instructions for receiving a first control message indicating a threshold number of time slots for a time period between at least two consecutive physical uplink channels over which the UE can maintain phase continuity.

[0050] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving the first control message may include acts, features, means, or instructions for receiving a first control message requesting that a network entity refrain from scheduling uplink transmissions, or downlink transmissions, or both, for the UE during a period of time.

[0051] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving the first control message may include acts, features, means, or instructions for receiving a first control message indicating that the UE supports scheduling of one or more downlink transmissions, one or more reference signal measurement durations, or any combination thereof, during a time period between at least two consecutive physical uplink channels.

[0052] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving the first control message may include acts, features, means, or instructions for receiving a first control message indicating that the UE supports scheduling of one or more uplink transmissions for the time period.

[0053] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, transmitting control signaling may include acts, features, means, or instructions for transmitting control signaling configuring a same set of parameter values ​​for each transmission of a set of multiple physical uplink channels and for one or more uplink transmissions.

[0054] Some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein may include any of the following: bandwidth, transmit power, modulation order, number of layers, antenna ports, TPMI, carrier, transmit chain switching configuration, or any combination thereof.

[0055] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving the first control message may include acts, features, means, or instructions for receiving a first control message indicating that the UE supports scheduling of one or more intervening uplink transmissions during a first portion of a time period, a second portion of a time period including a transmission gap after an intervening scheduled transmission, or any combination thereof.

[0056] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving the first control message may include acts, features, means, or instructions for receiving a first control message indicating a maximum duration for a period of time between at least two consecutive physical uplink channels over which the UE can maintain phase continuity.

[0057] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving the first control message may include acts, features, means, or instructions for receiving a first control message indicating that the UE supports transmission of a set of multiple physical uplink channels, which may all be scheduled within the same frame.

[0058] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving a first control message may include operations, features, means, or instructions for receiving a first control message indicating that the UE may be capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across a first carrier in the set of multiple carriers during a first transmission window that may be time-aligned to a second transmission window of a second carrier in the set of multiple carriers.

[0059] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving a first control message may include operations, features, means, or instructions for receiving a first control message indicating whether the UE may maintain phase continuity for a set of multiple physical uplink channels that may be scheduled across a set of multiple time slots when at least one of the set of multiple physical uplink channels includes one or more intervening non-bundled transmissions.

[0060] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving a first control message may include operations, features, means, or instructions for receiving a first control message indicating that the UE may be capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across a first carrier in the set of multiple carriers during a first transmission window that may be time-aligned to a second transmission window of a second carrier in the set of multiple carriers.

[0061] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, receiving the first control message may include acts, features, means, or instructions for receiving a first control message indicating that the UE may be capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across a set of multiple transmit chains.

[0062] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, the set of physical uplink channels may include operations, features, means, or instructions for a set of physical uplink shared channels, a set of physical uplink control channels, or both.

[0063] In some examples of the methods, apparatus, computer programs, and non-transitory computer-readable media described herein, the set of multiple physical uplink channels may include operations, features, means, or instructions for multiple repeating sets of the same physical uplink channel, or two or more different physical uplink channels scheduled by multiple sets of downlink control information messages, or any combination thereof. [Brief description of the drawings]

[0064] [Figure 1]FIG. 1 illustrates an example of a wireless communication system supporting capability signaling transmission according to aspects of the present disclosure. [Diagram 2] FIG. 2 illustrates an example of a resource configuration according to aspects of the present disclosure. [Diagram 3] FIG. 2 illustrates an example of a resource configuration according to aspects of the present disclosure. [Figure 4] FIG. 1 illustrates an example of a demodulation reference signal bundling scheme according to aspects of the present disclosure. [Diagram 5] FIG. 1 illustrates an example of a demodulation reference signal bundling configuration according to aspects of the present disclosure. [Figure 6] FIG. 1 illustrates an example of a timeline supporting capability signaling for uplink transmissions, according to an aspect of the disclosure. [Figure 7] FIG. 1 illustrates an example of a timeline supporting capability signaling for uplink transmissions, according to an aspect of the disclosure. [Figure 8] FIG. 1 illustrates an example of a process flow according to an aspect of the present disclosure. [Figure 9] FIG. 1 is a block diagram of an exemplary device according to an aspect of the present disclosure. [Figure 10] FIG. 1 is a block diagram of an exemplary device according to an aspect of the present disclosure. [Figure 11] FIG. 2 is a block diagram of an example communications manager according to an aspect of the present disclosure. [Figure 12] FIG. 1 is a diagram of an exemplary system including a device according to an aspect of the present disclosure. [Figure 13] FIG. 1 is a block diagram of an exemplary device according to an aspect of the present disclosure. [Figure 14] FIG. 1 is a block diagram of an exemplary device according to an aspect of the present disclosure. [Figure 15] FIG. 2 is a block diagram of an example communications manager according to an aspect of the present disclosure. [Figure 16] FIG. 1 is a diagram of an exemplary system including a device according to an aspect of the present disclosure. [Figure 17]1 is a flowchart illustrating an example method for supporting capability signaling for uplink transmissions, according to an aspect of the disclosure. [Figure 18] 1 is a flowchart illustrating an example method for supporting capability signaling for uplink transmissions, according to an aspect of the disclosure. [Figure 19] 1 is a flowchart illustrating an example method for supporting capability signaling for uplink transmissions, according to an aspect of the disclosure. [Figure 20] 1 is a flowchart illustrating an example method for supporting capability signaling for uplink transmissions, according to an aspect of the disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0065] Some wireless communications systems may support multiple uplink transmissions (e.g., repetitions of a single message on a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH), or different data or control messages transmitted on a PUSCH or PUCCH) while maintaining phase continuity across each transmission in different time slots. Maintaining phase continuity may be referred to as bundling and may include using the same set of parameters (e.g., the same frequency resources, the same transmit power, the same spatial transmission relationship, the same antenna ports, the same precoding, etc.) for each set of uplink transmissions. Maintaining phase continuity may include transmitting the first and second transmissions such that the two transmissions do not include a discontinuity that exceeds a threshold. For example, the difference between the phase of the first transmission and the phase of the second transmission meets a threshold phase difference at a boundary (e.g., a slot boundary) between the two transmissions (e.g., the phase is approximately the same or within a threshold difference).

[0066] Bundling one or more respective sets of transmissions may support joint processing of demodulation reference signals (DMRS) at the base station. The base station may perform joint channel estimation across a set of uplink channels received in multiple time slots (e.g., time intervals such as slots, minislots, subslots, symbols, frames, subframes, etc.) provided that the UE maintains phase continuity across the set of uplink channels. The base station may generate joint channel estimates for multiple time slots using DMRS transmissions transmitted by the UE in the set of uplink channels and use the joint channel estimates to demodulate multiple uplink transmissions received in the set of uplink channels.

[0067] In some examples, the uplink transmissions may be contiguous in a single timeslot, contiguous across multiple timeslots, discontinuous in a single timeslot (e.g., a time gap between at least two of the uplink transmissions), discontinuous across multiple timeslots (e.g., consecutive or discontinuous timeslots), etc. Some UEs (e.g., devices with advanced processing or computing capabilities) may maintain phase continuity in any of the above scenarios. However, some UEs may only be able to maintain phase continuity if the uplink transmissions are scheduled to comply with a set of restrictions or rules.

[0068] Conventional systems may not support techniques for determining whether a UE can maintain phase continuity in various situations. If a base station is unable to recognize UE capabilities, it may inefficiently schedule multiple uplink transmissions for joint channel estimation if the UE is unable to maintain phase continuity. For example, if a base station schedules a UE to transmit multiple bundled uplink transmissions (e.g., under the incorrect assumption that the UE can maintain phase continuity over the entire set of scheduled uplink transmissions), the UE may not be able to maintain phase continuity for the scheduled uplink transmissions, and joint channel estimation may fail due to phase noise or phase jumps, poor reception at the base station, failed transmissions, retransmissions, increased system latency, etc. However, if a base station incorrectly determines that an advanced UE with improved capabilities in some or all use cases is unable to maintain phase continuity, the base station may avoid scheduling the UE for multiple uplink transmissions in some or all of the use cases described herein. In this case, resources may be used inefficiently and computational and system efficiencies available to the advanced UE may not be fully utilized.

[0069] Techniques are described for reporting uplink transmission bundling capabilities for a UE to maintain phase continuity across multiple physical uplink channels (e.g., multiple uplink transmissions on a physical uplink channel, e.g., DMRS). In some examples, the UE may indicate that it can maintain phase continuity across a set of multiple uplink transmissions (e.g., multiple physical uplink channels) even if there is an intervening time gap between at least one pair of consecutive bundled uplink channels. The UE may transmit a control message including the capability information, and the base station may correspondingly configure the uplink transmissions such that the UE can maintain phase continuity for the configured uplink channels across the intervening time gaps. The capability information may include indicating whether the UE can maintain phase continuity across a set of uplink transmissions, in the same slot or across multiple slots. The capability information may also indicate whether the UE can maintain phase continuity, such as when uplink or downlink signaling is scheduled within an intervening time gap between adjacent uplink transmissions, when the UE can maintain phase continuity across a set of uplink channels when switching transmission chains or component carriers (CCs) for transmission of one or more uplink channels, or when the UE can maintain phase continuity across a set of uplink channels transmitted across different carriers. The capability information may be indicated per band, per subcarrier spacing, per modulation and coding scheme (MCS), etc. In some examples, the UE may indicate a maximum duration for a time gap, or a maximum amount of a time gap in which uplink or downlink signaling may be scheduled, a minimum time between the end of an intervening uplink or downlink signal and the next uplink transmission, or any combination thereof.

[0070] Aspects of the present disclosure are first described in the context of a wireless communication system. Aspects of the present disclosure are further illustratively illustrated by and described with reference to resource configurations, DMRS bundling configurations, timelines, and process flows. Aspects of the present disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flow charts relating to functional signaling for uplink transmissions.

[0071] FIG. 1 illustrates an example of a wireless communication system 100 supporting capability signaling for uplink transmissions according to aspects of the disclosure. The wireless communication system 100 may include one or more network entities 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a network operating according to a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or other systems and radio technologies, including future systems and radio technologies not explicitly described herein. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low latency communications, communications with low-cost and low-complexity devices, or any combination thereof.

[0072] The network entities 105 may be distributed throughout a geographic area to form the wireless communication system 100 and may be devices of different forms or with different capabilities. In various examples, the network entities 105 may be referred to as network elements, mobility elements, radio access network (RAN) nodes, or network equipment, among other names. In some examples, the network entities 105 and the UEs 115 may communicate wirelessly over one or more communication links 125 (e.g., radio frequency (RF) access links). For example, the network entities 105 may support a coverage area 110 (e.g., a geographic coverage area) over which the UEs 115 and the network entities 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the network entities 105 and the UEs 115 may support communication of signals over one or more radio access technologies (RATs).

[0073] The UEs 115 may be distributed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be fixed or mobile or both at different times. The UEs 115 may be devices of different forms or with different capabilities. Some example UEs 115 are shown in FIG. 1. The UEs 115 described herein may be able to communicate with various types of devices, such as other UEs 115, network entities 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment) as shown in FIG. 1.

[0074] As described herein, a node of the wireless communication system 100 may be referred to as a network node or a wireless node, and may be a network entity 105 (e.g., any network entity described herein), a UE 115 (e.g., any UE described herein), a network controller, an apparatus, a device, a computing system, one or more components, or another appropriate processing entity configured to perform any of the techniques described herein. For example, a node may be a UE 115. As another example, a node may be a network entity 105. As another example, a first node may be configured to communicate with a second node or a third node. In one aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a UE 115. In another aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a network entity 105. In yet other aspects of this example, the first, second, and third nodes may be different for these examples. Similarly, references to a UE 115, a network entity 105, an apparatus, a device, a computing system, etc. may include disclosure of the UE 115, the network entity 105, the apparatus, the device, the computing system, etc. being a node. For example, disclosure that a UE 115 is configured to receive information from a network entity 105 also discloses that a first node is configured to receive information from a second node.

[0075] In some examples, the network entities 105 may communicate with the core network 130, or with each other, or both. For example, the network entities 105 may interface with the core network 130 through one or more backhaul communication links 120 (e.g., according to an S1, N2, N3, or other interface protocol). In some examples, the network entities 105 may communicate with each other through the backhaul communication links 120 (e.g., according to an X2, Xn, or other interface protocol), either directly (e.g., directly between the network entities 105), or indirectly (e.g., via the core network 130), or both. In some examples, the backhaul links 120 may be or include one or more wireless links. In some examples, the network entities 105 (e.g., base stations) may communicate with each other via midhaul communication links (e.g., according to a midhaul interface protocol), or via fronthaul communication links (e.g., according to a fronthaul interface protocol), or via any combination thereof. The backhaul communications link 120 may be or include one or more wireless midhaul communications links, or the fronthaul communications link may be or include one or more wired links (e.g., electrical links, optical fiber links), one or more wireless links (e.g., radio links, wireless optical links), or various combinations thereof, among other examples. The UE 115 may communicate with the core network 130 over the communications links.

[0076] One or more of the network entities 105 (e.g., base stations) described herein may include or be referred to by one skilled in the art as a base transceiver station, radio base station, access point, radio transceiver, Node B, eNodeB (eNB), Next Generation Node B or Giga Node B (any of which may be referred to as a gNB), Home Node B, Home eNodeB, 5G NB, Next Generation eNB (ng-eNB), Home Node B, Home eNodeB, or other suitable terminology. In some examples, the network entities 105 (e.g., base stations) may be implemented in an aggregated (e.g., monolithic, standalone) base station architecture, which may be configured to utilize protocol stacks that are physically or logically integrated within a single network entity 105 (e.g., a single RAN node such as a base station).

[0077] In some examples, one or more network entities 105 (e.g., one or more base stations or aspects of the network entities 105) may be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture), which may be configured to utilize a protocol stack that is physically or logically distributed between two or more network entities 105, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or a virtualized RAN (vRAN) (e.g., Cloud RAN (C-RAN)). For example, the network entity 105 may include one or more of a central unit (CU) 160, a distributed unit (DU) 165, a radio unit (RU) 170, a RAN intelligent controller (RIC) 175 (e.g., a Near-Real Time RIC (Near RT RTC), a Non-Real Time RIC (Non-RT RIC)), a Service Management and Orchestration (SMO) 180 system, or any combination thereof. The RU 170 may also be referred to as a radio head, a smart radio head, a remote radio head (RRH), a remote radio unit (RRU), or a transmit / receive point (TRP). One or more components of the work entity 105 in a decomposed RAN architecture may be co-located, or one or more components of the network entity 105 may be located in distributed locations (e.g., separate physical locations). In some examples, one or more network entities 105 of the disaggregated RAN architecture may be implemented as virtual units (e.g., Virtual CU (VCU), Virtual DU (VDU), Virtual RU (VRU)).

[0078] The division of functions between the CU 160, the DU 165, and the RU 170 may be flexible and support different functions depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, and any combination thereof) are performed in the CU 160, the DU 165, or the RU 170. For example, a functional division of a protocol stack may be used between the CU 160 and the DU 165 such that the CU 160 may support one or more layers of the protocol stack and the DU 165 may support one or more different layers of the protocol stack. In some examples, the CU 160 may host higher protocol layer (e.g., Layer 3 (L3), Layer 2 (L2)) functions and signaling (e.g., Radio Resource Control (RRC), Service Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP)). The CU 160 may be connected to the DU 165 or the RU 170, which may host lower protocol layers such as Layer 1 (L1) (e.g., physical (PHY) layer) or L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functions and signaling, each of which may be at least partially controlled by the CU 160. Additionally or alternatively, a functional division of the protocol stack may be used between the DU 165 and the RU 170, such that the DU 165 may support one or more layers of the protocol stack and the RU 170 may support one or more different layers of the protocol stack. The DU 165 may support one or more different cells (e.g., via one or more RUs 170). In some cases, the functional division between CU160 and DU165 or between DU165 and RU170 may be performed within a protocol layer (e.g., some functions of the protocol layer may be performed by one of CU160, DU165, or RU170, while other functions of the protocol layer are performed by a different unit among CU160, DU165, or RU170).The CU 160 may be further divided in terms of functionality into a CU Control Plane (CU-CP) function and a CU User Plane (CU-UP) function. The CU 160 may be connected to the DU 165 via a midhaul communication link (e.g., F1, F1-c, F1-u), which may be connected to one or more RUs 170 via a fronthaul communication link (e.g., an open fronthaul (FH) interface). In some examples, the midhaul or fronthaul communication link may be implemented according to an interface (e.g., a channel) between layers of a protocol stack supported by the respective network entities 105 that communicate via such communication links.

[0079] In a wireless communication system (e.g., the wireless communication system 100), infrastructure and spectrum resources for radio access may support wireless backhaul link capabilities to assist wired backhaul connectivity, forming an IAB network architecture (e.g., to the core network 130). In some cases, in an IAB network, one or more network entities 105 (e.g., IAB nodes) may be partially controlled by one another. One or more IAB nodes may also be referred to as donor entities or IAB donors. The DU 165 or one or more RUs 170 may be partially controlled by a CU 160 associated with a donor network entity 105 (e.g., a donor base station). One or more donor network entities 105 (e.g., IAB donors) may communicate with one or more additional network entities 105 (e.g., IAB nodes) via supported access and backhaul links (e.g., the backhaul communication link 120). An IAB node may include an IAB mobile termination (IAB-MT) controlled (e.g., scheduled) by a DU 165 of the associated IAB donor. The IAB-MT may include an independent set of antennas for relaying communications with the UE 115 or may share the same antennas (e.g., of the RU 170) of the IAB node used for access via the DU 165 of the IAB node (e.g., referred to as a virtual IAB-MT (vIAB-MT)). In some examples, the IAB node may include a DU 165 that supports communication links with additional entities (e.g., the IAB node, the UE 115) in the relay chain or configuration of the access network (e.g., downstream). In such cases, one or more components of the decomposed RAN architecture (e.g., one or more IAB nodes or components of the IAB node) may be configured to operate in accordance with the techniques described herein.

[0080] For the techniques described herein applied in the context of a decomposed RAN architecture, one or more components of the decomposed RAN architecture may be configured to support phase tracking and demodulation reference signals for joint channel estimation as described herein. For example, some operations described as being performed by the UE 115 or a network entity 105 (e.g., a base station) may additionally or alternatively be performed by one or more components of the decomposed RAN architecture (e.g., an IAB node, a DU 165, a CU 160, a RU 170, a RIC 175, a SMO 180).

[0081] The UE 115 may include or be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, and a "device" may be referred to as a unit, a station, a terminal, or a client, among other things. The UE 115 may also include or be referred to as a personal electronic device, such as a mobile phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, the UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, among other things, which may be implemented in various articles, such as an appliance, or a vehicle, a meter, among other things.

[0082] The UEs 115 described herein may be able to communicate with various types of devices, such as other UEs 115 that may act as relays, as shown in FIG. 1, as well as network entities 105 and network equipment, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among others.

[0083] The UE 115 and the network entity 105 may wirelessly communicate with each other via one or more communication links 125 on one or more carriers. The term “carrier” may refer to a set of radio frequency spectrum resources having a defined physical layer structure to support the communication link 125. For example, a carrier used for the communication link 125 may include a portion (e.g., a bandwidth part (BWP)) of a radio frequency spectrum band that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry collection signaling (e.g., synchronization signals, system information), control signaling that may coordinate operation on the carrier, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation or multi-carrier operation. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplex (FDD) and time division duplex (TDD) component carriers. Communication between the network entity 105 and other devices may refer to communication between a device and any portion (e.g., entity, sub-entity) of the network entity 105. For example, the terms "transmit," "receive," or "communicate," when referring to the network entity 105, may refer to any portion (e.g., base station, CU 160, DU 165, RU 170) of the network entity 105 of the RAN that communicates with another device (e.g., directly or via one or more other network entities 105).

[0084] In some examples (e.g., in a carrier aggregation configuration), a carrier may also have collection or control signaling to coordinate operation with respect to other carriers. A carrier may be associated with a frequency channel (e.g., evolved universal mobile telecommunication system terrestrial radio access (E-UTRA) absolute radio frequency channel number (EARFCN)) and may be arranged according to a channel raster for discovery by the UE 115. A carrier may operate in a standalone mode, where initial collection and connection may be made by the UE 115 over the carrier, or the carrier may operate in a non-standalone mode, where connection is anchored using a different carrier (e.g., of the same or different radio access technology).

[0085] The communication links 125 shown in the wireless communication system 100 may include uplink transmissions from the UE 115 to the network entity 105 (e.g., a base station), or downlink transmissions (e.g., forward link transmissions) from the network entity 105 to the UE 115, uplink transmissions (e.g., return link transmissions) from the network entity 105 to the UE 115, or both, among other communication configurations. A carrier may carry downlink or uplink communications (e.g., in FDD mode) or may be configured to carry downlink and uplink communications (e.g., in TDD mode).

[0086] A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one of several determined bandwidths for a carrier of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 Megahertz (MHz)). The devices of the wireless communication system 100 (e.g., the network entity 105, the UE 115, or both) may have a hardware configuration that supports communication on a particular carrier bandwidth or may be configurable to support communication on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a network entity 105 or a UE 115 that supports simultaneous communication over a carrier associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate on a portion (e.g., a sub-band, BWP) or all of the carrier bandwidth.

[0087] A signal waveform transmitted on a carrier may be composed of multiple subcarriers (e.g., using a multi-carrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may consist of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, where the symbol period and the subcarrier spacing are inversely proportional. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Thus, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate may be for the UE 115. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may further increase the data rate or data integrity for communications with the UE 115.

[0088] One or more numerologies for a carrier may be supported, where the numerology may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communication for the UE 115 may be limited to one or more active BWPs.

[0089] The time interval for the network entity 105 or the UE 115 may be, for example, T s =1 / (Δf max N f ) seconds, where Δf maxmay represent the maximum supported subcarrier spacing, and N f may represent the maximum discrete Fourier transform (DFT) size supported. The communication resource time intervals may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0090] Each frame may include multiple consecutively numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into several slots. Alternatively, each frame may include a variable number of slots, and the number of slots may depend on the subcarrier spacing. Each slot may include several symbol periods (e.g., depending on the length of a cyclic prefix prepended to each symbol period). In some wireless communications systems 100, a slot may be further divided into multiple minislots containing one or more symbols. Excluding the cyclic prefix, each symbol period may include one or more (e.g., N f The waiting time in symbol periods may depend on the subcarrier spacing or the frequency band of operation.

[0091] A subframe, slot, minislot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g., in a burst of shortened TTIs (sTTIs)).

[0092] The physical channels may be multiplexed on the carriers according to various techniques. The physical control channels and the physical data channels may be multiplexed on the downlink carriers using, for example, one or more of a time division multiplexing (TDM), a frequency division multiplexing (FDM), or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) for the physical control channel may be defined by a number of symbol periods and may extend across the system bandwidth of the carrier or a subset of the system bandwidth. One or more control regions (e.g., CORESET) may be configured for a set of UEs 115. For example, one or more of the UEs 115 may monitor or search the control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates at one or more aggregation levels configured in a cascaded manner. The aggregation level for the control channel candidates may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with the coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for sending control information to multiple UEs 115 and a UE-specific search space set for sending control information to a particular UE 115 .

[0093] Each network entity 105 may provide communication coverage via one or more cells, e.g., macro cells, small cells, hot spots, or other types of cells, or any combination thereof. The term “cell” may refer to a logical communication entity used for communication with the network entity 105 (e.g., on a carrier) and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other) to distinguish neighboring cells. In some examples, a cell may also refer to a geographic coverage area 110 or a portion (e.g., a sector) of a geographic coverage area 110 in which the logical communication entity operates. Such a cell may range from a smaller area (e.g., a structure, a subset of a structure) to a larger area depending on various factors such as the capabilities of the network entity 105. For example, a cell may be or include, among others, a building, a subset of a building, or an outside space between or overlapping with the geographic coverage area 110.

[0094] A macro cell generally covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UEs 115 subscribing to the service of a network provider supporting the macro cell. A small cell may be associated with a lower power network entity 105 compared to a macro cell, and the small cell may operate in the same or different (e.g., licensed, unlicensed) frequency band as the macro cell. A small cell may provide unrestricted access to UEs 115 subscribing to the service of the network provider, or may provide restricted access to UEs 115 having an association with the small cell (e.g., UEs 115 in a closed subscriber group (CSG), UEs 115 associated with a user in a home or office). A network entity 105 may support one or more cells and may support communication on one or more cells using one or more component carriers.

[0095] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.

[0096] In some examples, the network entities 105 may be mobile and thus provide communication coverage to moving geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same network entity 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different network entities 105. The wireless communication system 100 may include heterogeneous networks, for example, where different types of network entities 105 provide coverage to various geographic coverage areas 110 using the same or different radio access technologies.

[0097] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, the network entities 105 may have similar frame timing and transmissions from different network entities 105 may be approximately aligned in time. For asynchronous operation, the network entities 105 may have different frame timing and transmissions from different network entities 105 may not be aligned in time, in some examples. The techniques described herein may be used for either synchronous or asynchronous operation.

[0098] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technologies that allow devices to communicate with each other or with network entities 105 without human intervention. In some examples, M2M communication or MTC may include communication from devices that incorporate sensors or meters to measure or capture information and relay that information to a central server or application program that utilizes such information or presents the information to a human interacting with the application program. Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business billing.

[0099] Some UEs 115 may be configured to employ operating modes that reduce power consumption, such as half-duplex communication (e.g., modes that support one-way communication via transmission or reception, but not simultaneous transmission and reception). In some examples, the half-duplex communication may be performed at a reduced peak rate. Other power conservation techniques for the UE 115 include entering a power-saving deep sleep mode when not engaged in active communication, operating over a limited bandwidth (e.g., in accordance with narrowband communication), or a combination of these techniques. For example, some UEs 115 may be configured for operation using a narrowband protocol type associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of the carrier, or outside of the carrier.

[0100] The wireless communication system 100 may be configured to support ultra-reliable or low latency communications, or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low latency communications (URLLC) or mission-critical communications. The UEs 115 may be designed to support ultra-reliable, low latency, or critical functions (e.g., mission-critical functionality). Ultra-reliable communications may include private or group communications and may be supported by one or more mission-critical services, such as mission critical push-to-talk (MCPTT), mission critical video (MCVideo), or mission critical data (MCData). Support for mission-critical functionality may include service prioritization, and the mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low latency, mission-critical, and ultra-reliable low latency may be used interchangeably herein.

[0101] In some examples, the UE 115 may also be able to communicate directly with other UEs 115 via a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) protocol or a D2D protocol). One or more UEs 115 utilizing D2D communication may be within a geographic coverage area 110 of the network entity 105. Other UEs 115 in such a group may be outside of the geographic coverage area 110 of the network entity 105 or may not be able to receive transmissions from the network entity 105 in some examples. In some examples, a group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system in which each UE 115 transmits to every other UE 115 in the group. In some examples, the network entity 105 facilitates scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without the involvement of the network entity 105.

[0102] In some systems, the D2D communication link 135 may be an example of a communication channel between vehicles (e.g., UE 115), such as a sidelink communication channel. In some examples, the vehicles may communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination thereof. The vehicles may signal information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, the vehicles in the V2X system may communicate with roadside infrastructure, such as roadside units, or with a network via one or more network nodes (e.g., network entity 105) using vehicle-to-network (V2N) communication, or both.

[0103] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) that manages access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) that routes packets or interconnects to external networks. The control plane entities may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for UEs 115 served by network entities 105 associated with the core network 130. User IP packets may be forwarded through user plane entities, which may provide IP address allocation as well as other functions. The user plane entities may be connected to IP services 150 for one or more network operators. The IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0104] Some of the network devices, such as the network entity 105, may include subcomponents, such as an access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with the UE 115 through one or more other access network transmitting entities 145, which may be referred to as radio heads, smart radio heads, or transmission / reception points (TRPs). Each access network transmitting entity 145 may include one or more antenna panels. In some configurations, various functions of each access network entity 140 or network entity 105 may be distributed across various network devices (e.g., radio heads and ANCs) or integrated into a single network device (e.g., the network entity 105).

[0105] The wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). The 300 MHz to 3 GHz region is commonly referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately 1 decimeter to 1 meter in length. Although UHF waves may be blocked or redirected by buildings and environmental features, the waves may penetrate structures sufficiently for a macrocell to serve UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers) compared to transmissions using lower frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0106] The wireless communication system 100 may also operate in the super high frequency (SHF) region, also known as the centimeter band, using a frequency band from 3 GHz to 30 GHz, or in the extremely high frequency (EHF) region of the spectrum, also known as the millimeter band (e.g., from 30 GHz to 300 GHz). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the network entity 105, and the EHF antennas of the respective devices may be smaller and more closely spaced than UHF antennas. In some examples, this may facilitate the use of antenna arrays within the devices. However, propagation of EHF transmissions may experience more atmospheric attenuation and shorter distances than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions using one or more different frequency regions, and the designated use of the bands across these frequency regions may vary by country or regulatory body.

[0107] The wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ License Assisted Access (LAA), LTE-Unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band, such as the 5 GHz Industrial, Scientific, and Medical (ISM) band. When operating in an unlicensed radio frequency spectrum band, the network entity 105 and devices such as the UE 115 may employ carrier sensing for collision detection and avoidance. In some examples, operation in an unlicensed band may be based on a carrier aggregation configuration in conjunction with component carriers operating in a licensed band (e.g., LAA). Operation in an unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.

[0108] A network entity (base station) or UE 115 may be equipped with multiple antennas that may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the network entity 105 or UE 115 may be located in one or more antenna arrays or antenna panels that may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located in an antenna assembly such as an antenna tower. In some examples, antennas or antenna arrays associated with the network entity 105 may be located in diverse geographic locations. The network entity 105 may have an antenna array with several rows and columns of antenna ports that the network entity 105 may use to support beamforming of communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panels may support radio frequency beamforming for signals transmitted through the antenna ports.

[0109] The network entity 105 or UE 115 may use MIMO communications to exploit multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing. The multiple signals may be transmitted by a transmitting device, for example, via different antennas or different combinations of antennas. Similarly, the multiple signals may be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits related to the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). The different spatial layers may be associated with different antenna ports used for channel measurements and reporting. MIMO techniques include single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0110] Beamforming, sometimes referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting or receiving device (e.g., network entity 105, UE 115) to shape or steer an antenna beam (e.g., transmit beam, receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals communicated through antenna elements of an antenna array such that some signals propagating in a particular orientation relative to the antenna array are subject to constructive interference, while other signals are subject to destructive interference. Adjustment of signals communicated through antenna elements may include a transmitting or receiving device applying an amplitude offset, a phase offset, or both to signals carried through an antenna element associated with the device. The adjustment associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., relative to the antenna array of the transmitting or receiving device, or to some other orientation).

[0111] The network entity 105 (e.g., a base station) and / or the UE 115 may use beam sweeping techniques as part of a beamforming operation. For example, the network entity 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform a beamforming operation for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted by the network entity 105 multiple times in different directions. For example, the network entity 105 may transmit signals according to different beamforming weight sets associated with different directions of transmission. The transmissions in different beam directions may be used to identify beam directions (e.g., by a transmitting device such as the network entity 105 or by a receiving device such as the UE 115) for subsequent transmission or reception by the network entity 105.

[0112] Some signals, such as data signals associated with a particular receiving device, may be transmitted by the network entity 105 in a single beam direction (e.g., a direction associated with a receiving device, such as the UE 115). In some examples, a beam direction associated with a transmission along a single beam direction may be determined based on signals transmitted in one or more beam directions. For example, the UE 115 may receive one or more of the signals transmitted in different directions by the network entity 105 and may report to the network entity 105 an indication of the signal that the UE 115 received with the highest signal quality or possibly an acceptable signal quality.

[0113] In some examples, transmission by a device (e.g., by the network entity 105 or the UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from the network entity 105 to the UE 115). The UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. The network entity 105 may transmit reference signals (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)) that may or may not be precoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook). These techniques are described with reference to signals transmitted by the network entity 105 in one or more directions, although the UE 115 may employ similar techniques for transmitting a signal multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by the UE 115) or for transmitting a signal in a single direction (e.g., to transmit data to a receiving device).

[0114] A receiving device (e.g., UE 115) may attempt multiple receive configurations (e.g., directional listening) when receiving various signals, such as synchronization signals, reference signals, beam selection signals, or other control signals, from the network entity 105. For example, the receiving device may attempt multiple receive directions by receiving via different antenna subarrays, by processing the received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of the antenna array, or by processing the received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of the antenna array, any of which may be referred to as "listening" with different receive configurations or receive directions. In some examples, the receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal). The single receive configuration may be aligned to a beam direction determined based on listening with different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio (SNR), or possibly acceptable signal quality based on listening with multiple beam directions).

[0115] The wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communication at the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based. The Radio Link Control (RLC) layer may perform packet segmentation and reassembly to communicate on logical channels. The Medium Access Control (MAC) layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer may also use error detection techniques, error correction techniques, or both to support retransmissions at the MAC layer to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer may establish, configure, and maintain an RRC connection between the UE 115 and the network entity 105 or the core network 130, which supports radio bearers for user plane data. In the physical layer, the transport channels may be mapped to physical channels.

[0116] The UE 115 and the network entity 105 may support retransmission of data to increase the likelihood that the data is successfully received. Hybrid automatic repeat request (HARQ) feedback is one technique for increasing the likelihood that the data is correctly received on the communication link 125. HARQ may include a combination of error detection (e.g., using cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ may improve throughput at the MAC layer in poor radio conditions (e.g., low signal-to-noise conditions). In some examples, a device may support same-slot HARQ feedback, in which the device may provide HARQ feedback in a particular slot for data received in a previous symbol in that slot. In other cases, the device may provide HARQ feedback in a subsequent slot or according to some other time interval.

[0117] In general, the UE 115 may report an uplink transmission bundling capability to maintain phase continuity across multiple physical uplink channels (e.g., multiple uplink transmissions on one or more physical uplink channels). The uplink transmissions may be DMRS. The UE 115 may transmit a control message including the capability information, and the network entity may configure the physical uplink channels accordingly such that the UE 115 may maintain uplink phase continuity across intervening time gaps between the bundled physical uplink channels. In some examples, the UE 115 may indicate that it can maintain phase continuity across multiple uplink transmissions on one or more physical uplink channels even if there is an intervening time gap between at least one pair of consecutive uplink transmissions. The capability information may include indicating whether the UE 115 can maintain phase continuity across a set of uplink transmissions in the same slot or across multiple slots. The capability information may also indicate whether uplink or downlink signaling is scheduled within an intervening time gap between at least one consecutive pair of uplink channels, if the UE 115 is able to maintain phase continuity across a set of uplink channels when switching transmission chains or component carriers (CCs) for transmission of one or more uplink channels, if the UE 115 is able to maintain phase continuity across a set of uplink channels transmitted across different carriers, etc. The capability information may be indicated per band, per subcarrier spacing, per modulation and coding scheme (MCS), etc. In some examples, the UE 115 may indicate a maximum duration for a time gap, or a maximum amount of a time gap in which uplink or downlink signaling may be scheduled, a minimum time between the end of an intervening uplink or downlink signal and the next uplink transmission, or any combination thereof.

[0118] FIG. 2 illustrates an example of a resource configuration 200 supporting capability signaling for uplink transmissions according to aspects of the disclosure. In some examples, the resource configuration 200 may implement or be implemented by aspects of the wireless communication system 100. The resource configuration 200 illustrates a set of resources 205 across multiple slots 210 that may be used for transmission and reception of phase coherent transmissions, such as DMRS. As illustrated with reference to the slots 210, the techniques described with reference to FIG. 2 elsewhere herein may be implemented for any transmission time interval (TTI) (e.g., slot, minislot, subslot, symbol, frame, subframe, etc.). Additionally, although the resource configuration 200 includes a PUSCH transmission 215, the techniques described herein may be performed with reference to a PUCCH.

[0119] As mentioned herein, some wireless communications systems (e.g., wireless communications system 100) may enable a wireless device (e.g., UE 115) to transmit bundled uplink transmissions, such as DMRSs 220 with phase continuity (e.g., phase coherent DMRSs 220) to improve channel estimation. For example, UE 115 may transmit a set of DMRSs 220 with phase continuity to network entity 105 within a set of resources known by both UE 115 and network entity 105. In this example, since DMRSs 220 with phase continuity are received by network entity 105 within a set of known resources, network entity 105 may be configured to aggregate DMRSs 220 with phase continuity to make a more accurate channel estimate of the channel between UE 115 and network entity 105. Network entity 105 may then demodulate (e.g., decode) other transmissions (e.g., PUSCH transmissions 215) received from UE 115 over the channel using the improved channel estimate. In some aspects, the PUSCH transmissions 215 may be transmitted with phase continuity across each slot 210 .

[0120] Some wireless communication systems allow bundling of DMRSs 220 only within a single TTI and not across multiple TTIs. For example, in some wireless communication systems, the UE 115 may be configured to transmit a set of DMRSs 220 with phase continuity in a first slot 210-a, but may not be able to maintain phase coherency for the DMRSs 220 transmitted in different slots 210. For example, in some wireless communication systems, the UE 115 may not be able to maintain phase continuity across the DMRSs 220 transmitted in the first slot 210-a and the second slot 210-b. In this regard, phase continuity may be maintained for the DMRSs 220 in each respective slot 210, but may not be maintained for the DMRSs 220 across multiple slots 210.

[0121] In some other wireless communications systems (e.g., the wireless communications system 100), the DMRS 220 may be bundled across multiple slots and / or across multiple transmissions (e.g., PUCCH or PUSCH transmissions), whereby phase continuity may be maintained across multiple slots 210 and / or across multiple transmissions. For example, in the wireless communications system 100, the UE 115 may be configured to transmit the DMRS 220 in a first slot 210-a, a second slot 210-b, and a third slot 210-c, where phase continuity is maintained across each of the slots 210-a, 210-b, and 210-c. In this example, the network entity 105 may be configured to jointly process (e.g., aggregate) phase-coherent DMRSs 220 received across slots 210-a, 210-b, and 210-c when performing channel estimation (e.g., cross-slot channel estimation) and may demodulate PUSCH transmissions 215 (e.g., PUSCH transmissions 215 having phase continuity) received across slots 210-a, 210-b, and 210-c using the resulting channel estimate.

[0122] In some aspects, one or more parameters or characteristics may be maintained for phase coherent DMRSs 220 bundled across one or more slots 210. Parameters that may be used to maintain phase continuity for a DMRS 220 associated with one or more PUSCH transmissions 215 may include, but are not limited to, phase, frequency allocation, transmit power, spatial transmission relationship, antenna port used for transmission, precoding scheme, etc. For example, as shown in FIG. 2, if a DMRS 220 is bundled across a first slot 210-a, a second slot 210-b, and a third slot 210-c, the frequency allocation and transmission for the DMRS 220 in each respective slot 210 remains unchanged. Conversely, phase continuity may not be maintained across slots 210 and / or other transmissions (e.g., phase discontinuity) if the slots 210 and / or the DMRS 220 in each slot 210 indicate one or more different parameters (e.g., different phases, different frequency resource allocation within or between PUSCH slots, discontinuous time resource allocation for PUSCH slots, different transmit powers, different antenna ports, different timing advances).

[0123] In some aspects, the ability to bundle DMRSs 220 across multiple slots 210 (maintain phase coherency for DMRSs 220 across multiple slots 210) and / or bundle DMRSs 220 across multiple transmissions (e.g., multiple PUSCH transmissions 215) may enable improved channel estimation at a receiving device (e.g., network entity 105). In particular, by allowing more DMRSs 220 to be aggregated across multiple slots 210, the network entity 105 may be able to make more comprehensive channel estimates (e.g., cross-slot channel estimates), which may improve the ability of the network entity 105 to demodulate received PUSCH transmissions 215.

[0124] In some examples, different UEs 115 may have different capabilities. For example, some UEs 115 may be able to maintain phase continuity across a set of uplink channels across several consecutive slots 210 or several non-consecutive slots. Some UEs 115 may be able to maintain phase continuity across different CCs or while switching transmission chains. Some UEs 115 may be able to maintain phase continuity across a set of uplink channels for a set of uplink transmissions within or across a slot 210, even if an uplink or downlink transmission is scheduled in between. For example, a UE 115 may be able to maintain phase continuity for uplink PUSCH transmissions 215 between slots 210-a and 210-b, even if a different uplink transmission is scheduled during slot 210-b. Other UEs 115 may have more limited capabilities and may be able to maintain phase continuity across a set of uplink channels only if one or more rules or conditions are met. For example, such a UE 115 may be able to maintain phase continuity for back-to-back (e.g., consecutive) uplink channels scheduled within slot 210-a or across slots 210-a and 210-b, but may not be able to maintain phase continuity when an intervening uplink or downlink transmission is scheduled between the consecutive uplink channels. Additional restrictions may apply to such UEs 115, as described in more detail with reference to Figures 3-7.

[0125] In some examples, the UE 115 may transmit the bundling capability information to a network entity, which may schedule multiple uplink channels according to the bundling capability information (e.g., so that the UE can maintain phase continuity across the multiple scheduled uplink channels without exceeding the UE's capability to enable the network entity to perform joint channel estimation).

[0126] The bundling functionality may be different for different use cases or bundling configurations, as will be described in more detail with reference to FIG.

[0127] 3 illustrates an example of a resource configuration 300 supporting capability signaling for uplink transmissions in accordance with aspects of the present disclosure. In some examples, the resource configuration 300 may implement or be implemented by aspects of the wireless communication system 100, the resource configuration 200, or both.

[0128] As previously indicated herein, bundling DMRS with phase continuity across one or more slots 310 and / or one or more PUSCH transmissions may enable a receiving device to aggregate the bundled DMRS and perform more accurate channel estimation, which may improve demodulation of other received transmissions.

[0129] For example, as shown in the resource allocation scheme 305-a, a set of DMRSs with phase continuity (e.g., phase coherent DMRSs) may be transmitted with a set of repetitions of PUSCH transmissions across multiple slots 310. In other words, phase continuity is maintained for the bundled DMRSs across the first slot 310-a, the second slot 310-b, the third slot 310-c, and the fourth slot 310-d. Furthermore, phase continuity may be maintained for the bundled DMRSs across each PUSCH repetition. In this example, the PUSCH transmissions in each slot 310 may include repetitions of the same PUSCH transmission. In other words, each PUSCH transmission shown in the resource allocation scheme 305-a may include the same data payload (e.g., the same transport block). Each PUSCH transmission may be transmitted with phase continuity across each slot 310. In this example, maintaining phase continuity across the bundled DMRS across multiple slots 310 and / or PUSCH transmissions may enable a receiving device (e.g., the network entity 105) to perform more accurate channel estimation, which may enable the receiving device to more accurately and efficiently demodulate (e.g., decode) multiple repetitions of the PUSCH transmission.

[0130] In additional or alternative aspects, bundling DMRSs with phase continuity across multiple slots may enable efficient demodulation of different PUSCH transmissions. For example, as shown in resource allocation scheme 305-b, a set of DMRSs with phase continuity may be transmitted together with a set of PUSCH transmissions across multiple slots 310. In other words, phase continuity is maintained for the bundled DMRSs across the first slot 310-e, the second slot 310-f, the third slot 310-g, and the fourth slot 310-h.

[0131] Additionally or alternatively, phase continuity is maintained for the bundled DMRS across the respective PUSCH transmissions. In this example, the PUSCH transmissions in each slot 310 may include different PUSCH transmissions (e.g., different data payloads, different transport blocks), and the different PUSCH transmissions may be scheduled by different scheduling grants, DCI messages, etc. For example, a PUSCH transmission in a first slot 310-e may be different from a PUSCH transmission in a second slot 310-f, a third slot 310-g, a fourth slot 310-h, or any combination thereof. For example, a first PUSCH transmission in a first slot 310-a may be scheduled by a first DCI message, and a second PUSCH transmission in a second slot 310-b may be scheduled by a second DCI message. Thus, the four PUSCH transmissions in each of the respective slots 310 may include different PUSCH transmissions (e.g., different data payloads, different transport blocks) scheduled using different scheduling grants (e.g., four separate DCI messages each scheduling the four PUSCH transmissions). In some cases, the PUSCH transmissions may be transmitted with phase continuity across the respective slots 310. In this example, maintaining phase continuity across the bundled DMRS across multiple slots 310 and / or multiple PUSCH transmissions may enable a receiving device (e.g., network entity 105) to perform more accurate channel estimation (e.g., cross-slot channel estimation), which may enable the receiving device to more accurately and efficiently demodulate (e.g., decode) the different PUSCH transmissions received in each respective slot 310.

[0132] PUSCH or PUCCH DMRS bundling may be applied to PUSCH or PUCCH repetitions across multiple slots, PUSCH or PUCCH transmissions carrying different transport blocks (TBs) (e.g., scheduled by separate downlink control information (DCI) messages), etc. As described herein with reference to Figures 2 and 3, the UE 115 may be able to perform DMRS bundling for joint channel estimation if it can maintain phase continuity across associated PUSCH or PUCCH symbols. In some examples, phase continuity may not be a prerequisite for successful demodulation if the network entity can compensate for phase error. In other examples, successful joint channel estimation may depend on the transmission of multiple uplink transmissions (e.g., on the PUCCH or PUSCH) that maintain phase continuity.

[0133] The phase discontinuity may be due to one or more scenarios described herein (e.g., with reference to FIG. 4). For example, the phase discontinuity may possibly occur due to discontinuous time resource allocation. In some examples, if a timing gap between PUSCH symbols or slots is greater than a threshold time, or if other uplink signals (e.g., PUCCH, PUSCH sounding reference signal (SRS), etc.) or downlink signals (e.g., PDCCH, PDSCH, synchronization signal block (SSB), channel state information (CSI) reference signal (RS), etc.) are scheduled between consecutive uplink transmissions for joint channel estimation, the UE 115 may possibly be unable to maintain phase continuity across a set of uplink channels. Similarly, the UE 115 may possibly be unable to maintain phase continuity for a set of uplink channels that have different transmit powers, different transmit waveforms, or are allocated different frequency resources.

[0134] However, the threshold time between successive uplink transmissions that can maintain phase continuity may be different for some UEs 115. Similarly, some UEs may support coherent transmission of multiple uplink channels even if uplink signaling, downlink signaling, or both are scheduled between successive uplink transmissions. If the network entity does not have knowledge of which use cases the UE 115 can maintain phase continuity in, the network entity may schedule uplink transmissions inefficiently. Instead, as described with reference to Figures 5-8, the UE 115 may transmit bundling capability information to the network entity, which may schedule uplink transmissions accordingly, enabling the UE 115 to maintain phase continuity across a set of uplink channels, thereby enabling the network entity 105 to perform joint channel estimation.

[0135] 4 illustrates an example of a DMRS bundling scheme 400 supporting capability signaling for uplink transmissions in accordance with an aspect of the disclosure. The DMRS bundling scheme 400 may be implemented in or by one or more wireless devices, such as the UE 115 and the network entity 105, which may be examples of corresponding devices described with reference to FIGS. 1-3.

[0136] The network entity 105 may configure the UE 115 with time slot format information (e.g., resource allocation information). For example, the UE 115 may be configured in a time division multiplexed (TDM) configuration, where each time slot (e.g., each TTI, such as a slot, subslot, minislot, symbol, etc.) is allocated as an uplink time slot (e.g., U), a downlink time slot (e.g., D), or a special (e.g., flexible) time slot (e.g., S). Some or all symbols in an S TTI may be allocated for uplink signaling, and some or all symbols in an S TTI may be allocated for downlink signaling. In some examples, the TDM resource allocation may include a pattern of U, D, and S TTIs. An exemplary pattern may be DDDSUDDSUU. Such a pattern may repeat itself over time (e.g., across various time slots). The span 405 spans the set of uplink transmissions to be transmitted while defining the amount of time to maintain phase continuity for joint channel estimation. The span of repetition 405 may depend on the slot pattern and how the symbol or slot should be used (eg, U, D, or S).

[0137] In some cases, the exemplary pattern may be UDDD, which may be repeated over time. The network entity 105 may configure the UE 115 with one or more uplink transmissions (e.g., four uplink transmissions during four different slots). The multiple uplink transmissions may be different transmissions or may be repetitions of a single transmission. In an example where the slot allocation includes a UDDD pattern, four repetitions of the uplink transmission may be located in slots 0, 4, 8, and 12, respectively. In such an example, the multiple uplink transmissions (e.g., repetitions) may cover a span 405-a in time. Some UEs 115 may be able to maintain phase continuity over such a span 405-a. However, other UEs 115 may not be able to maintain phase continuity over such a long time or over such a large time gap (e.g., three slots between each successive uplink transmission), or over intervening downlink transmissions (e.g., during the intervening D slots).

[0138] In some cases, the network entity 105 may configure the UE 115 in an FDM configuration. In such an example, each time slot (e.g., slot, minislot, subslot, symbol, etc.) in a set of frequency resources (e.g., PUSCH or PUCCH) may be allocated (e.g., U) for uplink signaling. The UE may transmit scheduled uplink signaling during each U time slot. For example, the network entity may configure the UE to transmit four repetitions of an uplink message during slot 0 to slot 3 (three repetitions of an uplink message after the first transmission of the uplink message). In such an example, the multiple uplink transmissions (e.g., repetitions) may cover a span 405-b in time. Some UEs 115 may be able to maintain phase continuity across such a span 405-b. However, other UEs 115 may not be able to maintain phase continuity across the span 405-b. Some UEs 115 may be able to maintain phase continuity even when intervening uplink transmissions (e.g., for which the UE 115 is not expected to maintain phase continuity) are scheduled between uplink transmissions, while other UEs 115 may not be able to maintain phase continuity across non-consecutive U slots.

[0139] In some cases, the exemplary pattern may be a DDDUU that may be repeated over time. The network entity 105 may configure the UE 115 with one or more uplink transmissions (e.g., four uplink transmissions during four different slots). The multiple uplink transmissions may be different transmissions or may be repetitions of a single transmission. In an example where the slot allocation includes a DDDUU pattern, the four repetitions of the uplink transmission may be located in slots 3, 4, 8, and 9, respectively. In such an example, the multiple uplink transmissions (e.g., repetitions) may cover a span 405-c in time. Some UEs 115 may be able to maintain phase continuity over such a span 405-a. However, other UEs 115 may not be able to maintain phase continuity over such a long time, over such a large time gap (e.g., three slots between successive uplink transmissions between slots 4 and 8), or over intervening downlink transmissions (e.g., over the intervening D slots). Some UEs 115 may be able to maintain phase continuity during slot 3 and slot 4, but may not be able to maintain phase continuity during slot 4 through slot 8.

[0140] As will be further described with reference to Figures 5-8, the network entity 105 may more efficiently schedule uplink transmissions for which the UE 115 is expected to maintain phase continuity based on the bundling capability information transmitted by the UE. Various use cases in which the UE may or may not maintain phase continuity are described in more detail with reference to Figure 5. Additional considerations and information that may be included in the bundling capability information are described in more detail with reference to Figures 5-8.

[0141] 5 illustrates an example of a timeline 500 supporting capability signaling for uplink transmissions according to aspects of the disclosure. The timeline 500 may implement or be implemented by one or more wireless devices, such as the UE 115 and the network entity 105, which may be examples of the corresponding devices described with reference to FIGS. 1-4.

[0142] In some examples, the UE 115 may report its bundling capability to the network entity 105, as described herein. The network entity 105 may then schedule uplink transmissions (in accordance with the time slot format information, as described with reference to FIG. 4) in accordance with the bundling capability information to enable the UE 115 to maintain phase continuity across a set of uplink channels when joint channel estimation is desired. The bundling capability information may include an indication (e.g., transmission configuration) of whether phase continuity can be maintained in one or more use cases. The UE 115 may include the bundling capability information in a control message sent to the network entity 105, as described in more detail with reference to FIG. 8.

[0143] The UE 115 may indicate in the bundling capability information that it can or cannot support DMRS bundling (e.g., maintain phase continuity) across multiple physical uplink channel transmissions (e.g., on the PUCCH or PUSCH) that satisfy one or more conditions. For example, the UE 115 may indicate that it can or cannot maintain phase continuity for back-to-back (e.g., consecutive) uplink transmissions across multiple time slots (e.g., slots, minislots, subslots, symbols, frames, subframes, etc.) in the first transmission configuration. In such an example, the network entity may schedule the bundle transmissions 510 in consecutive slots in which the UE 115 can maintain phase continuity.

[0144] The UE 115 may indicate in its bundling capability information that it is capable (or not capable) of maintaining phase continuity across a set of uplink channels in back-to-back (e.g., consecutive) transmissions on the physical uplink channels within a single timeslot in the second transmission configuration. In such an example, the network entity 105 may schedule consecutive bundled transmissions 510 within individual timeslots in which the UE 115 is capable of maintaining phase continuity.

[0145] If the UE 115 can maintain phase continuity across a set of uplink channels for the back-to-back bundled transmissions 510 (e.g., first transmission configuration, second transmission configuration, etc.), the UE 115 may indicate a maximum bundling duration (e.g., maximum span 405). The maximum bundling duration may be indicated in absolute time, number of symbols, number of slots, an offset value, etc. The maximum bundling duration may be indicated per modulation order (e.g., MCS), per subcarrier spacing, per band, etc.

[0146] The UE 115 may indicate in its bundling capability information that it is capable (or incapable) of maintaining phase continuity across a set of uplink channels for non-back-to-back (e.g., non-contiguous) bundled transmissions 510 within a timeslot in the third transmission configuration. For example, the UE 115 may indicate in its bundling capability information that it is capable of maintaining phase continuity for multiple bundled transmissions 510 within a timeslot (e.g., timeslot 0) even if the pair of bundled transmissions 510 are separated by a time gap 505-a. In some examples, as described in more detail with reference to FIGS. 6-8, the UE 115 may further indicate in its bundling capability information a threshold duration for the time gap 505-a. The threshold duration for the time gap 505-a may indicate a maximum amount of time between two consecutive bundled transmissions 510. If uplink transmissions are scheduled within the same timeslot but are separated by an amount of time that exceeds the threshold duration for the time gap 505-a, the UE 115 may not be able to maintain phase continuity within the timeslot. The network entity 105 may schedule multiple bundle transmissions 510 within individual time slots based on the received bundling capability information. In some examples, the UE 115 may schedule multiple bundle transmissions 510 separated by a time equal to or less than a threshold duration for the time gap 505-a.

[0147] UE 115 may indicate in its bundling capability information that UE 115 can (or cannot) maintain phase continuity for non-back-to-back (e.g., non-contiguous) uplink channels scheduled across multiple time slots. UE 115 may indicate in its bundling capability information that UE 115 can (or cannot) maintain phase continuity across contiguous time slots in the fourth transmission configuration, or that UE 115 can (or cannot) maintain phase continuity across non-contiguous time slots in the fifth transmission configuration, or both.

[0148] In some examples, the UE 115 may provide a restriction on the time gap 505 (e.g., a threshold duration for the time gap 505) as part of the bundling capability information (e.g., UE capability information). For example, in the fourth transmission configuration, the UE 115 may indicate that it can maintain phase continuity for discontinuous bundle transmissions 510 across multiple slots (e.g., a bundle transmission 510 in each slot followed by one or more non-bundled transmissions 515 (e.g., uplink or downlink signaling), or a time gap 505-b (e.g., not including a scheduled transmission). In some examples, the UE 115 may further indicate a threshold duration for the time gap 505-b (e.g., a maximum amount of time for the time gap 505-b). The UE 115 may determine that it cannot maintain phase continuity between the first bundle transmission 510 (e.g., in slot 2) and the second bundle transmission 510 (e.g., in slot 3) if the time gap 505-b exceeds the threshold duration for the time gap 505-b. Similarly, the UE 115 may indicate a threshold duration for the time gap 505-c in the fifth transmission configuration. For example, the time gap 505-c may correspond to an amount of time (e.g., scheduled or unscheduled) between a first uplink transmission (e.g., in slot 0) and a second uplink transmission (e.g., in slot 2). The UE 115 may determine that phase continuity cannot be maintained between the first and second transmissions if the time gap 505-c exceeds the threshold duration for the time gap 505-c. The threshold duration for the time gap 505 may be indicated in the bundling capability information as an absolute duration (e.g., in ms), a number of symbols, a number of slots, etc.

[0149] In some implementations, the fourth transmission configuration and the fifth transmission configuration may include at least two consecutive physical uplink channels separated by a time period (e.g., time gap 505-b or time gap 505-c). In an example of the fourth transmission configuration, the time period may be of less duration than a slot (e.g., including a scheduled transmission, not including a scheduled transmission, or both). In an example of the fifth transmission configuration, the time period may be of more duration than a slot (e.g., including a scheduled transmission, not including a scheduled transmission, or both). In some cases, the UE 115 may provide as part of the bundling capability information one or more indications of whether the UE 115 can maintain phase continuity according to the fourth transmission configuration, the fifth transmission configuration, or both.

[0150] The UE 115 may indicate in the bundling capability information what it can and cannot support (e.g., what it can or cannot do to maintain phase continuity) during the time gaps 505 (e.g., during discontinuous uplink transmissions within or across a time slot). For example, the UE 115 may indicate in the bundling capability information that it can maintain phase continuity for a set of physical uplink channels when the time gaps 505 (e.g., time gaps 505-a in the third transmission configuration, time gaps 505-b in the fourth transmission configuration, or time gaps 505-c in the fifth transmission configuration) remain unscheduled (e.g., do not include scheduled downlink or uplink signaling). In some examples, the UE 115 may indicate that the time gaps 505 may be occupied by downlink reception. For example, the UE 115 may indicate that it can maintain phase continuity over a set of uplink channels for discontinuous bundled transmissions 510 when downlink signaling is scheduled during the time gaps 505. In some examples, the UE 115 may indicate that the time gap 505 may be a measurement gap in which some reference signals are measured. Scheduling a measurement gap for the time gap 505 may differ from scheduling downlink signaling during the time gap 505 (e.g., because the UE 115 partially or fully powers down the transmit chain to perform measurements). In some examples, the UE 115 may indicate a portion of the time gap 505 that can be allocated for downlink signaling (e.g., as described in more detail with reference to FIG. 7), a portion of the time gap 505 that can be allocated for reference signal measurement (e.g., based on reference signals received in downlink scheduling in a first portion of the time gap 505), a portion of the time gap 505 that remains unscheduled, or any combination thereof.

[0151] The UE may indicate in the bundling capability information that the time gap 505 may be occupied by an uplink transmission (e.g., an intervening non-bundled transmission 515 between consecutive bundled transmissions 510). In some examples, the UE 115 may indicate whether it can or cannot maintain phase continuity across the set of uplink channels when one or more intervening uplink transmissions (e.g., a non-bundled transmission 515) are located on the same carrier as the bundled transmission 510, on a different carrier than the bundled transmission 510, or both. For example, the network entity may schedule one or more intervening uplink transmissions on a physical uplink channel on a second carrier that is different from the first carrier on which the set of bundled uplink channels was scheduled. The UE 115 may or may not be able to maintain phase continuity across a set of bundled uplink channels on a first component carrier if the scheduled intervening uplink transmission is located on a second carrier (e.g., a second carrier that is far enough away in the frequency domain that transmitting or receiving on the second carrier requires the UE 115 to perform transmit chain switching or adjust one or more antenna port configurations). The UE 115 may indicate this capability in the bundling capability information. If the UE 115 indicates that it can support intervening non-bundled transmissions 515 during the time gap 505, it may further indicate whether it can support transmit chain switching. For example, the UE 115 may indicate that it can maintain phase continuity across a set of uplink channels when switching between bundled transmissions 510 and non-bundled transmissions 515 scheduled on different component carriers using the same transmit chains for transmissions on the different component carriers, as described in more detail with reference to FIG. 6.Similarly, the UE 115 may indicate whether it is able to maintain phase continuity across a set of uplink channels when switching between bundled transmissions 510 and non-bundled transmissions 515 scheduled on different component carriers using separate transmit chains for transmissions on the different component carriers, as will be described in more detail with reference to FIG. 6.

[0152] The UE 115 may indicate in the bundling capability information of the UE 115 one or more parameter values ​​for non-bundled transmissions 515 scheduled during the time gap 505. For example, the UE 115 may indicate that phase continuity can be maintained across discontinuous bundled uplink transmissions including the intervening non-bundled transmissions 515 if the non-bundled transmissions 515 have the same parameter values ​​as the bundled transmissions 510. For example, the UE 115 may indicate that the non-bundled transmissions 515 and the bundled transmissions 510 have the same bandwidth, the same transmit power, the same modulation order (e.g., the same MCS), the same number of layers, are transmitted on the same antenna ports and transmit precoder matrix indicator (TPMI), or any combination thereof if they maintain phase continuity across a set of uplink channels.

[0153] The UE 115 may indicate a maximum bundling duration (e.g., maximum span 405) if it can maintain phase continuity across a set of uplink channels for non-back-to-back bundled transmissions 510 (e.g., the third transmission configuration, the fourth transmission configuration, the fifth transmission configuration, etc.). The maximum bundling duration may be indicated in absolute time, in number of symbols, in number of slots, an offset value, etc. The maximum bundling duration may be indicated per modulation order (e.g., MCS), per subcarrier spacing, per band, etc.

[0154] In some examples, the UE 115 may indicate that the UE 115 can maintain phase continuity across a set of physical uplink channels if the bundling window (e.g., bundling duration or span 405) does not cross a timing boundary (e.g., a frame boundary).

[0155] 6 illustrates an example of a timeline 600 supporting capability signaling for uplink transmissions in accordance with aspects of the disclosure. The timeline 600 may implement or be implemented by aspects of one or more wireless devices, such as the UE 115 and the network entity 105, which may be examples of the corresponding devices described with reference to FIGS. 1-5.

[0156] In some examples, as described in more detail with reference to FIG. 5, the UE 115 may be able to maintain phase continuity for discontinuous uplink transmissions within or across timeslots. The UE 115 may include in the bundling capability information message one or more conditions or rules that scheduled uplink transmissions must satisfy in order for the UE 115 to maintain phase continuity across the set of uplink channels. In some examples, the UE may indicate that it can maintain phase continuity across the set of uplink channels if one or more intervening uplink transmissions are scheduled between bundled uplink transmissions or if the intervening uplink transmissions meet one or more conditions. For example, the UE 115 may indicate that it can maintain phase continuity across the set of uplink channels for one or more intervening non-bundled transmissions 610 scheduled on the same carrier as the bundled transmission. In some examples, the UE 115 may indicate that it can maintain phase continuity across the set of uplink channels for one or more intervening non-bundled transmissions 610 scheduled on the same carrier or different carriers (e.g., different carriers less than X MHz away from the bundled transmission) that meet a threshold frequency difference value. In some examples, the UE 115 may indicate that it can maintain phase continuity across a set of uplink channels for one or more intervening non-bundled transmissions 610 scheduled on the same band as the bundled transmission 605. In such examples, the UE may be able to alternate between the bundled transmission 605-a and the intervening non-bundled transmissions 610-a using the same transmit chain (e.g., the first transmit chain 615) while maintaining phase continuity across the set of uplink channels transporting the bundled transmission 605-a.For example, the UE 115 may transmit a first bundled transmission 605-a in a first uplink channel by engaging a first transmit chain 615 in the transmission, and may transmit an intervening non-bundled transmission 610-a (e.g., in the next slot) by engaging the first transmit chain 615 in the transmission, while maintaining phase continuity across the set of uplink channels transporting the bundled transmission 605-a.

[0157] In some examples, the UE 115 may include an indication in the bundling capability information that it is unable to maintain phase continuity across a set of uplink channels for one or more intervening non-bundled transmissions 610 that require an uplink transmission chain switch (e.g., indicating that resources cannot be diverted away from the bundled transmission 605). For example, the UE 115 may indicate that it is unable to maintain phase continuity across a set of uplink channels for transmissions of the first bundled transmission 605-b and the second bundled transmission 605-b when the intervening non-bundled transmission 610-b is transmitted using the second transmission chain 620 (while the first transmission chain 615 is idle).

[0158] In some examples, the UE 115 may indicate that it can maintain phase continuity across a set of uplink channels even when switching between the first transmit chain 615 and the second transmit chain 620 to transmit the bundled transmission 605-b and the intervening non-bundled transmission 610-b.

[0159] The UE 115 may report in the bundling capability information whether it can maintain phase continuity across a set of bundled physical uplink channels for uplink carrier aggregation (ULCA). The UE 115 may transmit the bundling capability information to a network entity, which may enable simultaneous bundling across two carriers on a physical uplink channel (e.g., PUSCH or PUCCH) in a ULCA scenario. In some examples, the UE 115 may indicate in the capability information that it can maintain phase continuity across a set of bundled physical uplink channels during carrier aggregation when a bundling window (e.g., bundling duration or span 405) is aligned across multiple carriers. This may allow for uplink transmit power splitting across carriers to be managed.

[0160] The UE 115 may indicate in the bundling capability information one or more thresholds for a maximum time gap value or the portion of the time gap between discontinuous bundle transmissions 605 over which the UE can maintain phase continuity across the set of uplink channels, as described in more detail with reference to FIG. 7.

[0161] 7 illustrates an example of a timeline 700 supporting capability signaling for uplink transmissions in accordance with aspects of the disclosure. The timeline 700 may implement or be implemented by aspects of one or more wireless devices, such as the UE 115 and the network entity 105, which may be examples of the corresponding devices described with reference to FIGS. 1-6.

[0162] As described with reference to FIGS. 2-6, the UE 115 may provide bundling capability information to a network entity indicating conditions under which phase continuity can be maintained across a set of uplink channels. In some examples, the capability information may include an indication that the UE can maintain phase continuity (e.g., within a timeslot or across multiple timeslots) across a set of uplink channels for discontinuous bundled transmissions 710 when an intervening non-bundled transmission 715 is scheduled during a time gap 705 between contiguous bundled transmissions 710. In such examples, the UE 115 may further indicate one or more additional constraints on accommodating the intervening non-bundled transmission 715. For example, the UE may indicate that it can maintain phase continuity across a set of bundled physical uplink channels when the intervening non-bundled transmission 715 lasts for a time period equal to or less than a time period 720. The time period 720 may be a portion of the time gap 705. The time period 720 may be defined as an amount of time (e.g., in milliseconds), a number of symbols, a number of slots, etc. In some examples, the UE 115 may indicate that it can maintain phase continuity across the set of bundled physical uplink channels if an intervening non-bundled transmission 715 is followed by a time period 725. For example, the UE 115 may indicate that it can maintain phase continuity across the set of bundled physical uplink channels if an unscheduled gap having a minimum duration (e.g., in units of time, in units of symbols or slots, etc.) ends after each non-bundled transmission 715. The time period 725 may have a duration sufficient for the UE 115 to retune one or more antennas, reconfigure one or more antenna ports, pause transmit power, transition between transmit chains, or otherwise adjust one or more transmit parameters to maintain phase continuity for the bundled transmissions 710 before and after the time gap 705.

[0163] In some examples, the UE 115 may indicate that it can maintain phase continuity across a set of uplink channels when receiving downlink signaling (e.g., non-bundled transmissions 715) during the time gap 705, or when performing measurements during the time gap 705, or both. In some examples, the UE may indicate that it can maintain phase continuity across a set of physical uplink channels when receiving a reference signal during the time period 720 and that it can maintain phase continuity across a set of physical uplink channels when performing reference signal measurements during the time period 725. In some examples, the UE 115 may indicate in the bundling capability information that it supports downlink signaling during the time gap 705 if the downlink signaling is on the same carrier, or in the same band, or on a carrier that meets a threshold (e.g., is less than a threshold number of MHz) away from the carrier on which the bundled transmission 710 is scheduled.

[0164] FIG. 8 illustrates an example of a process flow 800 supporting capability signaling for uplink transmission according to an aspect of the disclosure. The process flow 800 may include a UE 115-a and a network entity 105-a, which may be examples of corresponding devices described with reference to FIGS. 1-7. In the following description of the process flow 800, operations between the network entity 105-a and the UE 115-a may be transmitted in a different order than the example order shown, or operations performed by the network entity 105-a and the UE 115-a may be performed in a different order or at different times. Some operations may also be omitted from the process flow 800, and other operations may be added to the process flow 800.

[0165] In one implementation, process flow 800 may depict operations including a UE 115-a transmitting a first control message reporting a bundled transmission capability of the UE 115-a to maintain phase continuity for multiple physical uplink channels (e.g., maintain phase continuity for multiple transmissions across multiple physical uplink channels), receiving control signaling to schedule the multiple physical uplink channels according to the bundled transmission capability, and transmitting the multiple physical uplink channels with phase continuity and multiple DMRSs corresponding to the multiple physical uplink channels. This implementation may enable more efficient communication between the UE 115-a and the network entity 105-a, which may successfully maintain phase continuity, successfully perform joint channel estimation, reduce system latency, and efficiently utilize resources, among other benefits.

[0166] In some examples, the network entity 105-a may transmit, and the UE 115-a may receive, control signaling at 805. The control signaling may include time slot format information (e.g., a slot format indicator (SFI)). The time slot format information may indicate a particular pattern of uplink slots, downlink slots, and flexible slots (e.g., U, D, or S) within a set of time slots (e.g., UDDD, UUUU, UDDDU, etc.). A time slot may be a unit of time, such as one or more slots, symbols, minislots, subslots, subframes, frames, etc.

[0167] At 810, the UE 115-a may transmit a first control message, and the network entity 105-a may receive the first control message. The first control message may report a bundle transmission capability of the UE 115-a to maintain phase continuity for the multiple physical uplink channels. In some examples, each of the multiple physical uplink channels (e.g., individual uplink messages scheduled by different DCI messages, or repetitions of a single uplink message) may be contiguous (e.g., within a timeslot or across multiple timeslots). In some examples, each of the multiple physical uplink channels may be non-contiguous. In such examples, at least two consecutive physical uplink channels (e.g., bundle transmissions) may be separated by a time period (e.g., time gap 505). In some examples, the first control message may indicate a capability of the UE 115-a to maintain phase continuity for the multiple physical uplink channels according to the indicated timeslot format information. For example, the timeslot format information may indicate that a set of timeslots are all back-to-backup link timeslots, or may indicate that the set includes one or more downlink timeslots such that one or more non-back-to-backup link timeslots occur between consecutive uplink timeslots.

[0168] In some examples, the UE 115-a may transmit the capability information based at least in part on receiving the control signaling at 805. In some examples, the UE 115-a may transmit updated capability information corresponding to the indicated time slot format information each time it receives the time slot format information from the network entity 105-a. For example, the time slot format information may indicate that a time gap (e.g., time gap 505 in FIG. 5) occurs between occasions for consecutive uplink slots or uplink symbol periods in which a set of uplink channels may be scheduled in the same time slot or across a set of multiple time slots. The bundled transmission capability may indicate whether the UE 115-a can maintain phase continuity for a set of multiple physical uplink channels, where at least two consecutive physical uplink channels of the multiple physical uplink channels are separated by a time period.

[0169] The capability information may indicate that the UE 115-a can maintain phase continuity for a physical uplink channel when the physical uplink channels are scheduled in the same time slot. In some examples, the capability information may indicate that the UE 115-a can maintain phase continuity for a physical uplink channel scheduled across multiple time slots. In some examples, the multiple time slots may be contiguous in time or may include at least one intervening time slot (e.g., a time gap).

[0170] In some examples, the capability information may indicate a frequency band, subcarrier spacing, MCS, or any combination thereof, associated with the reported capability. For example, the UE 115-a may transmit capability information per band for one or more bands, per subcarrier spacing for one or more subcarrier spacings, per MCS order for one or more MCSs (e.g., QPSK may allow looser requirements than other modulation orders), or in any combination thereof. Each bundle capability information message may include an indication of the band, subcarrier spacing, MCS, or any combination thereof to which the included capability information applies. In some examples, the UE 115-a may report its bundling capability information whenever the TDD slot pattern is changed.

[0171] The capability information may indicate a threshold number of time slots for a time period (e.g., a time gap) between at least two consecutive physical uplink channels over which the UE can maintain phase continuity. The capability information may indicate that the network entity 105-a can maintain phase continuity for a set of physical uplink channels if the network entity 105-a refrains from scheduling uplink transmissions, or downlink transmissions, or both, for the UE 115-a for the time period.

[0172] The capability information may indicate that the UE 115-a supports scheduling of one or more downlink transmissions for a time period, one or more reference signal measurement durations, or any combination thereof.

[0173] The capability information may indicate that the UE 115-a supports scheduling of one or more uplink transmissions for the time period. The capability information may indicate a set of parameter values ​​for transmitting each of the bundled transmissions. The network entity 105-a may include in the control signaling at 805 a physical uplink channel and a set of parameter values ​​for transmitting each of the one or more uplink transmissions. The parameter values ​​may include an indication of a bandwidth, a transmit power, a modulation order, a number of layers, an antenna port, a transmit precoding matrix index, a carrier, a transmit chain switching configuration, or any combination thereof. That is, the UE 115-a may indicate in the capability information a set of parameter values ​​for transmitting the bundled transmission and an indication that the UE 115-a can maintain phase continuity for multiple physical uplink channels when the network entity 105-a schedules any intervening non-bundled transmissions with the same parameters.

[0174] The capability information may indicate that the UE 115-a supports scheduling of one or more intervening non-bundled uplink transmissions during a first portion (e.g., a first threshold portion) of the time period, during a second portion (e.g., a second threshold portion) of the time period that includes a transmission gap after the intervening scheduled transmission, or any combination thereof. In some examples, the capability information may indicate a maximum duration for a time period between at least two consecutive physical uplink channels for which the UE can maintain phase continuity. The UE 115-a may indicate that it supports transmission of scheduled physical uplink channels all within the same frame.

[0175] The capability information may indicate that the UE 115-a is capable of maintaining phase continuity for a physical uplink channel scheduled across the multiple carriers. The capability information may indicate that the UE 115-a is capable of maintaining phase continuity for a physical uplink channel scheduled across a first carrier of the multiple carriers during a first transmission window that is time-aligned to a second transmission window of a second carrier of the multiple carriers.

[0176] In some examples, the capability information may indicate that the UE 115-a is capable of maintaining phase continuity for a physical uplink channel scheduled across multiple transmit chains.

[0177] The network entity 105-a may transmit, and the UE 115-a may receive, the control signaling, at 815. The control signaling may schedule multiple physical uplink channels according to the reported capabilities.

[0178] At 820, the UE 115-a may transmit, and the network entity 105-a may receive, multiple physical uplink channels with phase continuity in one or more timeslots. The UE 115-a may also transmit multiple DMRSs corresponding to the multiple physical uplink channels in one or more timeslots.

[0179] At 825, the network entity 105-a may receive one or more DMRSs in one or more timeslots and may perform a joint channel estimate for the multiple physical uplink channels based on the received one or more DMRSs. The network entity 105-a may demodulate the set of physical uplink channels received in the one or more timeslots at 820 using the joint channel estimate.

[0180] 9 illustrates a block diagram 900 of an example device 905 supporting capability signaling for uplink transmissions according to an aspect of the disclosure. The device 905 may be an example of an aspect of a UE 115 as described herein. The device 905 may include a receiver 910, a transmitter 915, a communications manager 920. The device 905 may include a processor. Each of these components may communicate with one another (e.g., via one or more buses).

[0181] The receiver 910 may provide a means for receiving information such as packets associated with various information channels (e.g., a control channel, a data channel, an information channel relating to capability signaling for uplink transmissions), user data, control information, or any combination thereof. The information may be passed to other components of the device 905. The receiver 910 may utilize a single antenna or a set of multiple antennas.

[0182] The transmitter 915 may provide a means for transmitting signals generated by other components of the device 905. For example, the transmitter 915 may transmit information such as packets associated with various information channels (e.g., a control channel, a data channel, an information channel related to capability signaling for uplink transmissions), user data, control information, or any combination thereof. In some examples, the transmitter 915 may be co-located with the receiver 910 in a transceiver module. The transmitter 915 may utilize a single antenna or a set of multiple antennas.

[0183] The communications manager 920, the receiver 910, the transmitter 915, or various combinations thereof or components thereof may be examples of means for performing various aspects of the functionality signaling for uplink transmission described herein. For example, the communications manager 920, the receiver 910, the transmitter 915, or various combinations thereof or components thereof may support a method for performing one or more of the functionality described herein.

[0184] In some examples, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry). The hardware may include a processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as, or in some cases supporting, a means for performing the functions described in this disclosure. In some examples, the processor, and a memory coupled to the processor, may be configured to perform one or more of the functions described herein (e.g., by executing, by the processor, instructions stored in the memory).

[0185] Additionally or alternatively, in some examples, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communications management software or firmware). When implemented in code executed by a processor, the functions of the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be performed by a general purpose processor, a DSP, a central processing unit (CPU), an ASIC, an FPGA, or any combination of these or other programmable logic devices (e.g., configured as, or in some cases supporting, a means for performing the functions described in this disclosure).

[0186] In some examples, the communications manager 920 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using, or possibly cooperating with, the receiver 910, the transmitter 915, or both. For example, the communications manager 920 may receive information from the receiver 910, send information to the transmitter 915, or be integrated with the receiver 910, the transmitter 915, or both to receive information, transmit information, or perform various other operations described herein.

[0187] The communications manager 920 may support wireless communications in a UE according to examples described herein. For example, the communications manager 920 may be configured as, or may possibly support, a means for transmitting a first control message to a network entity reporting a bundled transmission capability of the UE maintaining phase continuity for a set of multiple physical uplink channels. At least two consecutive physical uplink channels of the set of multiple physical uplink channels are separated by a time period. The communications manager 920 may be configured as, or may possibly support, a means for receiving, from the network entity based on the first control message, control signaling for scheduling the set of multiple physical uplink channels according to the reported capability. The communications manager 920 may be configured as, or may possibly support, a means for transmitting, based on the control signaling, a set of multiple physical uplink channels having phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels.

[0188] By including or configuring a communications manager 920 according to examples described herein, the device 905 (e.g., a processor controlling, or possibly coupled to, the receiver 910, the transmitter 915, the communications manager 920, or a combination thereof) may support techniques for signaling bundling capability information, thereby resulting in more efficient use of system resources, more efficient use of computational resources, reduced system latency, and an improved user experience.

[0189] 10 illustrates a block diagram 1000 of an example device 1005 supporting capability signaling for uplink transmissions according to an aspect of the disclosure. The device 1005 may be an example of an aspect of a device 905 or a UE 115 described herein. The device 1005 may include a receiver 1010, a transmitter 1015, and a communications manager 1020. The device 1005 may also include a processor. Each of these components may communicate with one another (e.g., via one or more buses).

[0190] The receiver 1010 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to capability signaling for uplink transmissions). The information may be passed to other components of the device 1005. The receiver 1010 may utilize a single antenna or a set of multiple antennas.

[0191] The transmitter 1015 may provide a means for transmitting signals generated by other components of the device 1005. For example, the transmitter 1015 may transmit information such as packets associated with various information channels (e.g., a control channel, a data channel, an information channel related to capability signaling for uplink transmissions), user data, control information, or any combination thereof. In some examples, the transmitter 1015 may be co-located with the receiver 1010 in a transceiver module. The transmitter 1015 may utilize a single antenna or a set of multiple antennas.

[0192] The device 1005 or various components thereof may be an example of a means for performing various aspects of capability signaling for uplink transmission as described herein. For example, the communications manager 1020 may include a bundling capability manager 1025, a scheduling manager 1030, a physical uplink channel transmission manager 1035, or any combination thereof. The communications manager 1020 may be an example of an aspect of a communications manager 920 as described herein. In some examples, the communications manager 1020 or various components thereof may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with the receiver 1010, the transmitter 1015, or both. For example, the communications manager 1020 may receive information from the receiver 1010, may send information to the transmitter 1015, or may be integrated in combination with the receiver 1010, the transmitter 1015, or both to receive information, transmit information, or perform various other operations as described herein.

[0193] The communications manager 1020 may support wireless communications in the UE according to examples described herein. The bundling capability manager 1025 may be configured as, or may in some cases support, a means for transmitting a first control message to a network entity reporting a bundle transmission capability of the UE maintaining phase continuity for a set of multiple physical uplink channels. At least two consecutive physical uplink channels of the set of multiple physical uplink channels are separated by a time period. The scheduling manager 1030 may be configured as, or may in some cases support, a means for receiving, from the network entity based on the first control message, control signaling for scheduling the set of multiple physical uplink channels according to the reported capability. The physical uplink channel transmission manager 1035 may be configured as, or may in some cases support, a means for transmitting, based on the control signaling, a set of multiple physical uplink channels having phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels.

[0194] FIG. 11 illustrates a block diagram 1100 of an example communications manager 1120 supporting capability signaling for uplink transmissions according to aspects of the disclosure. Communications manager 1120 may be an example of aspects of communications manager 920, communications manager 1020, or both described herein. Communications manager 1120, or various components thereof, may be an example of a means for performing various aspects of capability signaling for uplink transmissions described herein. For example, communications manager 1120 may include a bundling capability manager 1125, a scheduling manager 1130, a physical uplink channel transmission manager 1135, a time slot format manager 1140, a phase continuity manager 1145, a parameter value manager 1150, or any combination thereof. Each of these components may be in direct or indirect communication with one another (e.g., via one or more buses).

[0195] The communications manager 1120 may support wireless communications in the UE according to examples described herein. The bundling capability manager 1125 may be configured as, or may possibly support, a means for transmitting a first control message to a network entity reporting a bundle transmission capability of the UE maintaining phase continuity for a set of the plurality of physical uplink channels. At least two consecutive physical uplink channels of the set of the plurality of physical uplink channels are separated by a time period. The scheduling manager 1130 may be configured as, or may possibly support, a means for receiving, from the network entity based on the first control message, control signaling for scheduling the set of the plurality of physical uplink channels according to the reported capability. The physical uplink channel transmission manager 1135 may be configured as, or may possibly support, a means for transmitting, based on the control signaling, a set of the plurality of physical uplink channels having phase continuity and a set of the plurality of demodulation reference signals corresponding to the set of the plurality of physical uplink channels.

[0196] In some examples, to support the transmission of the first control message, the timeslot format manager 1140 may be configured with or support a means for receiving a second control message from a network entity indicating a change in the timeslot format, and the transmission of the first control message is based on the receipt of the second control message.

[0197] In some examples, to support transmission of the first control message, the phase continuity manager 1145 may be configured as, or in some cases may support, a means for the UE to transmit the first control message indicating that the UE is capable of maintaining phase continuity for a set of multiple physical uplink channels when the multiple physical uplink channels are scheduled within the same timeslot.

[0198] In some examples, to support transmission of the first control message, the phase continuity manager 1145 may be configured as, or in some cases may support, a means for transmitting the first control message indicating that the UE is capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across multiple time slots.

[0199] In some examples, at least a portion of the set of the multiple time slots are contiguous in time within the multiple time slots.

[0200] In some examples, to support transmission of the first control message, the bundling capability manager 1125 may be configured as, or in some cases may support, a means for transmitting a first control message indicating a frequency band, subcarrier spacing, modulation and coding scheme, or any combination thereof, associated with the reported capability.

[0201] In some examples, to support transmission of the first control message, the bundling function manager 1125 may be configured as, or in some cases may support, a means for transmitting the first control message indicating a threshold number of time slots for a time period between at least two consecutive physical uplink channels over which the UE can maintain phase continuity.

[0202] In some examples, to support transmission of the first control message, the bundling function manager 1125 may be configured as, or in some cases may support, a means for transmitting the first control message requesting that a network entity refrain from scheduling uplink transmissions, or downlink transmissions, or both, for the UE for a period of time.

[0203] In some examples, to support transmission of the first control message, the bundling function manager 1125 may be configured as, or in some cases may support, a means for transmitting a first control message indicating that the UE supports scheduling of one or more downlink transmissions for a time period, one or more reference signal measurement durations, or any combination thereof.

[0204] In some examples, to support transmission of the first control message, the bundling function manager 1125 may be configured as, or may possibly support, a means for transmitting the first control message indicating that the UE supports scheduling of one or more uplink transmissions for a time period.

[0205] In some examples, to support reception of control signaling, the parameter value manager 1150 may be configured as, or in some cases may support, a means for receiving control signaling that configures the same set of parameter values ​​for each transmission of a set of multiple physical uplink channels and one or more uplink transmissions.

[0206] In some examples, to support the same set of parameters, the parameter value manager 1150 may be configured as, or in some cases may support, a means for receiving control signaling to configure the bandwidth, transmit power, modulation order, number of layers, antenna ports, transmit precoding matrix index, carrier, transmit chain switching configuration, or any combination thereof.

[0207] In some examples, to support transmission of the first control message, the bundling function manager 1125 may be configured as, or may possibly support, a means for transmitting a first control message indicating that the UE supports scheduling of one or more intervening uplink transmissions during a first portion of a time period, a second portion of a time period that includes a transmission gap after an intervening scheduled transmission, or any combination thereof.

[0208] In some examples, to support transmission of the first control message, the bundling function manager 1125 may be configured as, or in some cases may support, a means for transmitting a first control message indicating a maximum duration for a time period between at least two consecutive physical uplink channels over which the UE can maintain phase continuity.

[0209] In some examples, to support the transmission of the first control message, the bundling function manager 1125 may be configured as, or may possibly support, a means for transmitting the first control message indicating that the UE supports the transmission of a set of multiple physical uplink channels all scheduled within the same frame.

[0210] In some examples, to support transmission of the first control message, the phase continuity manager 1145 may be configured as, or in some cases may support, a means for transmitting the first control message indicating that the UE is capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across a set of multiple carriers in a carrier aggregation.

[0211] In some examples, to support transmission of the first control message, the phase continuity manager 1145 may be configured as, or in some cases may support, a means for transmitting a first control message indicating that the UE is capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across a first carrier in the set of multiple carriers during a first transmission window that is time-aligned to a second transmission window of a second carrier in the set of multiple carriers.

[0212] In some examples, to support transmission of the first control message, the phase continuity manager 1145 may be configured as, or may possibly support, a means for transmitting the first control message indicating that the UE is capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across a set of multiple transmit chains.

[0213] In some examples, to support a set of multiple physical uplink channels, the physical uplink channel transmission manager 1135 may be configured as, or in some cases may support, a means for transmitting a set of multiple physical uplink shared channels, a set of multiple physical uplink control channels, or both.

[0214] In some examples, to support multiple sets of physical uplink channels, the physical uplink channel transmission manager 1135 may be configured as, or in some cases may support, a means for multiple repeating sets of the same physical uplink channel, or two or more different physical uplink channels scheduled by multiple sets of downlink control information messages, or any combination thereof.

[0215] FIG. 12 illustrates a diagram of an example system 1200 including a device 1205 supporting capability signaling for uplink transmissions according to aspects of the disclosure. The device 1205 may be an example of or may include components of a device 905, a device 1005, or a UE 115 as described herein. The device 1205 may wirelessly communicate with one or more network entities 105, a UE 115, or any combination thereof. The device 1205 may include components for two-way voice and data communication, including components for transmitting and receiving communications, such as a communications manager 1220, an input / output (I / O) controller 1210, a transceiver 1215, an antenna 1225, a memory 1230, code 1235, and a processor 1240. These components may be in electronic communication or may be coupled (e.g., operatively, communicatively, functionally, electronically, electrically) possibly via one or more buses (e.g., a bus 1245).

[0216] The I / O controller 1210 may manage input and output signals for the device 1205. The I / O controller 1210 may also manage peripherals that are not integrated into the device 1205. In some cases, the I / O controller 1210 may represent a physical connection or port to an external peripheral. In some cases, the I / O controller 1210 may utilize an operating system, such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. Additionally or alternatively, the I / O controller 1210 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, the I / O controller 1210 may be implemented as part of a processor, such as the processor 1240. In some cases, a user may interact with the device 1205 through the I / O controller 1210 or through hardware components controlled by the I / O controller 1210.

[0217] In some cases, the device 1205 may include a single antenna 1225. However, in some other cases, the device 1205 may have two or more antennas 1225 that may be capable of simultaneously transmitting or receiving multiple wireless transmissions. The transceiver 1215 may communicate bidirectionally via one or more antennas 1225, a wired link, or a wireless link, as described herein. For example, the transceiver 1215 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1215 may also include a modem for modulating packets and providing the modulated packets to the one or more antennas 1225 for transmission, and for demodulating packets received from the one or more antennas 1225. The transceiver 1215, or the transceiver 1215 and one or more antennas 1225, may be an example of the transmitter 915, the transmitter 1015, the receiver 910, the receiver 1010, or any combination or components thereof, as described herein.

[0218] The memory 1230 may include random access memory (RAM) and read only memory (ROM). The memory 1230 may store computer readable computer executable code 1235 including instructions that, when executed by the processor 1240, cause the device 1205 to perform various functions described herein. The code 1235 may be stored in a non-transitory computer readable medium, such as a system memory or another type of memory. In some cases, the code 1235 may not be directly executable by the processor 1240, but may (e.g., when compiled and executed) cause a computer to perform functions described herein. In some cases, the memory 1230 may include a basic I / O system (BIOS) that may control basic hardware or software operations, such as interactions with peripheral components or devices, among other things.

[0219] The processor 1240 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 1240 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 1240. The processor 1240 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1230) to cause the device 1205 to perform various functions (e.g., functions or tasks supporting functional signaling for uplink transmissions). For example, the device 1205 or a component of the device 1205 may include the processor 1240 and a memory 1230 coupled to the processor 1240, where the processor 1240 and the memory 1230 are configured to perform various functions described herein.

[0220] The communications manager 1220 may support wireless communications in a UE according to examples described herein. For example, the communications manager 1220 may be configured as, or may possibly support, a means for transmitting a first control message to a network entity reporting a bundled transmission capability of the UE maintaining phase continuity for a set of multiple physical uplink channels. At least two consecutive physical uplink channels of the set of multiple physical uplink channels are separated by a time period. The communications manager 1220 may be configured as, or may possibly support, a means for receiving, from the network entity based on the first control message, control signaling for scheduling the set of multiple physical uplink channels according to the reported capability. The communications manager 1220 may be configured as, or may possibly support, a means for transmitting, based on the control signaling, a set of multiple physical uplink channels having phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels.

[0221] By including or configuring a communications manager 1220 according to examples described herein, the device 1205 may support techniques for signaling bundling capability information, thereby resulting in more efficient use of system resources, more efficient use of computational resources, reduced system latency, and an improved user experience.

[0222] In some examples, the communications manager 1220 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with the transceiver 1215, the one or more antennas 1225, or any combination thereof. Although the communications manager 1220 is shown as a separate component, in some examples, one or more functions described with reference to the communications manager 1220 may be supported or performed by the processor 1240, the memory 1230, the code 1235, or any combination thereof. For example, the code 1235 may include instructions executable by the processor 1240 to cause the device 1205 to perform various aspects of the functionality signaling for uplink transmissions described herein, or the processor 1240 and the memory 1230 may be configured to perform or support such operations, as the case may be.

[0223] 13 illustrates a block diagram 1300 of an example device 1305 supporting capability signaling for uplink transmissions according to an aspect of the disclosure. The device 1305 may be an example of an aspect of a network entity 105 described herein. The device 1305 may include a receiver 1310, a transmitter 1315, and a communications manager 1320. The device 1305 may also include a processor. Each of these components may communicate with one another (e.g., via one or more buses).

[0224] The receiver 1310 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., a control channel, a data channel, an information channel related to capability signaling for uplink transmissions). The information may be passed to other components of the device 1305. The receiver 1310 may utilize a single antenna or a set of multiple antennas.

[0225] The transmitter 1315 may provide a means for transmitting signals generated by other components of the device 1305. For example, the transmitter 1315 may transmit information such as packets associated with various information channels (e.g., a control channel, a data channel, an information channel related to capability signaling for uplink transmissions), user data, control information, or any combination thereof. In some examples, the transmitter 1315 may be co-located with the receiver 1310 in a transceiver module. The transmitter 1315 may utilize a single antenna or a set of multiple antennas.

[0226] The communications manager 1320, the receiver 1310, the transmitter 1315, or various combinations or components thereof may be examples of means for performing various aspects of the functionality signaling for uplink transmission described herein. For example, the communications manager 1320, the receiver 1310, the transmitter 1315, or various combinations or components thereof may support a method for performing one or more of the functions described herein.

[0227] In some examples, the communications manager 1320, the receiver 1310, the transmitter 1315, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry). The hardware may include a processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as, or in some cases supporting, a means for performing the functions described in this disclosure. In some examples, the processor, and a memory coupled to the processor, may be configured to perform one or more of the functions described herein (e.g., by executing, by the processor, instructions stored in the memory).

[0228] Additionally or alternatively, in some examples, the communications manager 1320, the receiver 1310, the transmitter 1315, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communications management software or firmware). When implemented in code executed by a processor, the communications manager 1320, the receiver 1310, the transmitter 1315, or various combinations or components thereof may be executed by a general purpose processor, a DSP, a CPU, an ASIC, an FPGA, or any combination thereof or other programmable logic device (e.g., configured as, or in some cases supporting, a means for performing the functions described in this disclosure).

[0229] In some examples, the communications manager 1320 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using, or possibly in cooperation with, the receiver 1310, the transmitter 1315, or both. For example, the communications manager 1320 may receive information from the receiver 1310, may send information to the transmitter 1315, or may be integrated in combination with the receiver 1310, the transmitter 1315, or both to receive information, transmit information, or perform various other operations as described herein.

[0230] The communications manager 1320 may support wireless communications in a network entity according to examples disclosed herein. For example, the communications manager 1320 may be configured as, or may possibly support, a means for receiving from a UE a first control message reporting a bundled transmission capability of the UE maintaining phase continuity for a set of a plurality of physical uplink channels. At least two consecutive physical uplink channels of the set of a plurality of physical uplink channels are separated by a time period. The communications manager 1320 may be configured as, or may possibly support, a means for transmitting, based on the first control message, control signaling to the UE that schedules the set of a plurality of physical uplink channels according to the reported capability. The communications manager 1320 may be configured as, or may possibly support, a means for receiving, based on the control signaling, a set of a plurality of physical uplink channels having phase continuity and a set of a plurality of demodulation reference signals corresponding to the set of a plurality of physical uplink channels.

[0231] By including or configuring the communications manager 1320 according to the examples described herein, the device 1305 (e.g., a processor controlling, or possibly coupled to, the receiver 1310, the transmitter 1315, the communications manager 1320, or a combination thereof) may support techniques for signaling bundling capability information, thereby resulting in more efficient use of system resources, more efficient use of computational resources, reduced system latency, and an improved user experience.

[0232] 14 illustrates a block diagram 1400 of an example device 1405 supporting capability signaling for uplink transmissions according to an aspect of the disclosure. The device 1405 may be an example of an aspect of a device 1305 or a network entity 105 as described herein. The device 1405 may include a receiver 1410, a transmitter 1415, and a communications manager 1420. The device 1405 may also include a processor. Each of these components may communicate with one another (e.g., via one or more buses).

[0233] The receiver 1410 may provide a means for receiving information such as packets associated with various information channels (e.g., a control channel, a data channel, an information channel relating to capability signaling for uplink transmissions), user data, control information, or any combination thereof. The information may be passed to other components of the device 1405. The receiver 1410 may utilize a single antenna or a set of multiple antennas.

[0234] The transmitter 1415 may provide a means for transmitting signals generated by other components of the device 1405. For example, the transmitter 1415 may transmit information such as packets associated with various information channels (e.g., a control channel, a data channel, an information channel related to capability signaling for uplink transmissions), user data, control information, or any combination thereof. In some examples, the transmitter 1415 may be co-located with the receiver 1410 in a transceiver module. The transmitter 1415 may utilize a single antenna or a set of multiple antennas.

[0235] The device 1405 or various components thereof may be an example of a means for performing various aspects of capability signaling for uplink transmission described herein. For example, the communications manager 1420 may include a bundling capability manager 1425, a scheduling manager 1430, a physical uplink channel manager 1435, or any combination thereof. The communications manager 1420 may be an example of an aspect of the communications manager 1320 as described herein. In some examples, the communications manager 1420, or various components thereof, may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or possibly cooperating with the receiver 1410, the transmitter 1415, or both. For example, the communications manager 1420 may be integrated with the receiver 1410, the transmitter 1415, or both to receive information from the receiver 1410, send information to the transmitter 1415, or receive information, transmit information, or perform various other operations described herein.

[0236] The communications manager 1420 may support wireless communications in a network entity according to examples disclosed herein. The bundling capability manager 1425 may be configured as, or may support, a means for receiving from the UE a first control message reporting a bundle transmission capability of the UE maintaining phase continuity for a set of multiple physical uplink channels. At least two consecutive physical uplink channels of the set of multiple physical uplink channels are separated by a time period. The scheduling manager 1430 may be configured as, or may support, a means for transmitting, based on the first control message, control signaling to the UE to schedule the set of multiple physical uplink channels according to the reported capability. The physical uplink channel manager 1435 may be configured as, or may support, a means for receiving, based on the control signaling, a set of multiple physical uplink channels having phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels.

[0237] FIG. 15 illustrates a block diagram 1500 of an example communications manager 1520 supporting capability signaling for uplink transmissions according to aspects of the disclosure. Communications manager 1520 may be an example of aspects of communications manager 1320, communications manager 1420, or both described herein. Communications manager 1520, or various components thereof, may be an example of a means for performing various aspects of capability signaling for uplink transmissions described herein. For example, communications manager 1520 may include a bundling capability manager 1525, a scheduling manager 1530, a physical uplink channel manager 1535, a time slot format manager 1540, a timing manager 1545, a parameter value manager 1550, or any combination thereof. Each of these components may be in direct or indirect communication with one another (e.g., via one or more buses).

[0238] The communications manager 1520 may support wireless communications in a network entity according to examples disclosed herein. The bundling capability manager 1525 may be configured as, or may support, a means for receiving from the UE a first control message reporting a bundle transmission capability of the UE maintaining phase continuity for a set of a plurality of physical uplink channels. At least two consecutive physical uplink channels of the plurality of physical uplink channels are separated by a time period. The scheduling manager 1530 may be configured as, or may support, a means for transmitting, based on the first control message, control signaling to the UE to schedule the set of a plurality of physical uplink channels according to the reported capability. The physical uplink channel manager 1535 may be configured as, or may support, a means for receiving, based on the control signaling, a set of a plurality of physical uplink channels having phase continuity and a set of a plurality of demodulation reference signals corresponding to the set of a plurality of physical uplink channels.

[0239] In some examples, to support reception of the first control message, the timeslot format manager 1540 may be configured with or support a means for transmitting a second control message to the UE indicating a change in the timeslot format, and the reception of the first control message is based on the transmission of the second control message.

[0240] In some examples, to support receipt of the first control message, the bundling function manager 1525 may be configured as, or in some cases may support, a means for the UE to receive a first control message indicating that the UE is capable of maintaining phase continuity for a set of multiple physical uplink channels when the multiple physical uplink channels are scheduled within the same timeslot.

[0241] In some examples, to support receipt of the first control message, the bundling function manager 1525 may be configured as, or in some cases may support, a means for receiving a first control message indicating that the UE is capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across multiple time slots.

[0242] In some examples, at least a portion of the set of the multiple time slots are contiguous in time within the multiple time slots.

[0243] In some examples, to support receipt of the first control message, the bundling capability manager 1525 may be configured as, or in some cases may support, a means for receiving a first control message indicating a frequency band, subcarrier spacing, modulation and coding scheme, or any combination thereof, associated with the reported capability.

[0244] In some examples, to support reception of the first control message, the bundling function manager 1525 may be configured as, or in some cases may support, a means for receiving a first control message indicating a threshold number of time slots for a time period between at least two consecutive physical uplink channels over which the UE may maintain phase continuity.

[0245] In some examples, to support receipt of the first control message, the bundling function manager 1525 may be configured as, or in some cases may support, a means for receiving a first control message requesting that a network entity refrain from scheduling uplink transmissions, or downlink transmissions, or both, for the UE for a period of time.

[0246] In some examples, to support reception of the first control message, the bundling function manager 1525 may be configured as, or in some cases may support, a means for receiving a first control message indicating that the UE supports scheduling of one or more downlink transmissions for a time period between at least two consecutive physical uplink channels, one or more reference signal measurement durations, or any combination thereof.

[0247] In some examples, to support reception of the first control message, the bundling function manager 1525 may be configured as, or may possibly support, a means for the UE to receive a first control message indicating that the UE supports scheduling of one or more uplink transmissions for a period of time.

[0248] In some examples, to support the transmission of control signaling, the parameter value manager 1550 may be configured as, or in some cases may support, a means for transmitting control signaling that configures the same set of parameter values ​​for each transmission of a set of multiple physical uplink channels and one or more uplink transmissions.

[0249] In some examples, to support the same set of parameters, the parameter value manager 1550 may be configured as, or in some cases may support, a means for transmitting control signaling to configure bandwidth, transmit power, modulation order, number of layers, antenna ports, TPMI, carrier, transmit chain switching configuration, or any combination thereof.

[0250] In some examples, to support reception of the first control message, the scheduling manager 1530 may be configured as, or may possibly support, a means for receiving a first control message indicating that the UE supports scheduling of one or more intervening uplink transmissions during a first portion of a time period, a second portion of a time period that includes a transmission gap after an intervening scheduled transmission, or any combination thereof.

[0251] In some examples, to support reception of the first control message, the timing manager 1545 may be configured as, or may possibly support, a means for receiving a first control message indicating a maximum duration for a time period between at least two consecutive physical uplink channels over which the UE can maintain phase continuity.

[0252] In some examples, to support reception of the first control message, the timing manager 1545 may be configured as, or may possibly support, a means for receiving a first control message indicating that the UE supports transmission of a set of multiple physical uplink channels all scheduled within the same frame.

[0253] In some examples, to support reception of the first control message, the bundling function manager 1525 may be configured as, or in some cases may support, a means for receiving a first control message indicating that the UE is capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across a first carrier in the set of multiple carriers during a first transmission window that is time-aligned to a second transmission window of a second carrier in the set of multiple carriers.

[0254] In some examples, to support reception of the first control message, the bundling function manager 1525 may be configured as, or in some cases may support, a means for receiving a first control message indicating that the UE is capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across a first carrier in the set of multiple carriers during a first transmission window that is time-aligned to a second transmission window of a second carrier in the set of multiple carriers.

[0255] In some examples, to support reception of the first control message, the bundling function manager 1525 may be configured as, or may in some cases support, a means for receiving a first control message indicating that the UE is capable of maintaining phase continuity for a set of multiple physical uplink channels scheduled across a set of multiple transmit chains.

[0256] In some examples, to support a set of multiple physical uplink channels, the physical uplink channel manager 1535 may be configured as, or in some cases may support, a means for receiving a set of multiple physical uplink shared channels, a set of multiple physical uplink control channels, or both.

[0257] In some examples, to support multiple sets of physical uplink channels, the physical uplink channel manager 1535 may be configured as, or in some cases may support, a means for receiving multiple repeating sets of the same physical uplink channel, or two or more different physical uplink channels scheduled by multiple sets of downlink control information messages, or any combination thereof.

[0258] FIG. 16 illustrates a diagram of an example system 1600 including a device 1605 supporting capability signaling for uplink transmissions according to aspects of the disclosure. The device 1605 may be an example of or may include a component of a device 1305, a device 1405, or a network entity 105 as described herein. The device 1605 may wirelessly communicate with one or more network entities 105, UEs 115, or any combination thereof. The device 1605 may include components for two-way voice and data communication, including components for transmitting and receiving communications, such as a communications manager 1620, a network communications manager 1610, a transceiver 1615, an antenna 1625, a memory 1630, code 1635, a processor 1640, and an inter-station communications manager 1645. These components may be in electronic communication or may be coupled (e.g., operatively, communicatively, functionally, electronically, electrically) possibly via one or more buses (e.g., a bus 1650).

[0259] The network communications manager 1610 may manage communications with the core network 130 (e.g., via one or more wired backhaul links). For example, the network communications manager 1610 may manage the transfer of data communications for client devices, such as one or more UEs 115.

[0260] In some cases, the device 1605 may include a single antenna 1625. However, in some other cases, the device 1605 may have two or more antennas 1625 that may be capable of simultaneously transmitting or receiving multiple wireless transmissions. The transceiver 1615 may communicate bidirectionally via one or more antennas 1625, wired links, or wireless links as described herein. For example, the transceiver 1615 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1615 may also include a modem for modulating packets and providing the modulated packets to the one or more antennas 1625 for transmission, and for demodulating packets received from the one or more antennas 1625. The transceiver 1615, or the transceiver 1615 and one or more antennas 1625, may be an example of the transmitter 1315, the transmitter 1415, the receiver 1310, the receiver 1410, or any combination or components thereof, as described herein.

[0261] The memory 1630 may include RAM and ROM. The memory 1630 may store computer-readable, computer-executable code 1635 including instructions that, when executed by the processor 1640, cause the device 1605 to perform various functions described herein. The code 1635 may be stored in a non-transitory computer-readable medium, such as a system memory or another type of memory. In some cases, the code 1635 may not be directly executable by the processor 1640, but may (e.g., when compiled and executed) cause the computer to perform functions described herein. In some cases, the memory 1630 may include a BIOS, which may control basic hardware or software operations, such as interaction with peripheral components or devices, among other things.

[0262] The processor 1640 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 1640 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 1640. The processor 1640 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1630) to cause the device 1605 to perform various functions (e.g., functions or tasks supporting functional signaling for uplink transmissions). For example, the device 1605 or a component of the device 1605 may include a processor 1640 and a memory 1630 coupled to the processor 1640, where the processor 1640 and the memory 1630 are configured to perform various functions described herein.

[0263] The inter-station communications manager 1645 may manage communications with other network entities 105 and may include a controller or scheduler for controlling communications with the UE 115 in cooperation with the other network entities 105. For example, the inter-station communications manager 1645 may coordinate scheduling for transmissions to the UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, the inter-station communications manager 1645 may provide an X2 interface in LTE / LTE-A wireless communications network technology to communicate between the network entities 105.

[0264] The communications manager 1620 may support wireless communications in a network entity according to examples disclosed herein. For example, the communications manager 1620 may be configured as, or may possibly support, a means for receiving from a UE a first control message reporting a bundled transmission capability of the UE maintaining phase continuity for a set of a plurality of physical uplink channels. At least two consecutive physical uplink channels of the set of a plurality of physical uplink channels are separated by a time period. The communications manager 1620 may be configured as, or may possibly support, a means for transmitting, based on the first control message, control signaling to the UE that schedules the set of a plurality of physical uplink channels according to the reported capability. The communications manager 1620 may be configured as, or may possibly support, a means for receiving, based on the control signaling, a set of a plurality of physical uplink channels having phase continuity and a set of a plurality of demodulation reference signals corresponding to the set of a plurality of physical uplink channels.

[0265] By including or configuring a communications manager 1620 according to examples described herein, the device 1605 may support techniques for signaling bundling capability information, thereby resulting in more efficient use of system resources, more efficient use of computational resources, reduced system latency, and an improved user experience.

[0266] In some examples, the communications manager 1620 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using, or in some cases in cooperation with, the transceiver 1615, the one or more antennas 1625, or any combination thereof. Although the communications manager 1620 is shown as a separate component, in some examples, one or more functions described with reference to the communications manager 1620 may be supported or performed by the processor 1640, the memory 1630, the code 1635, or any combination thereof. For example, the code 1635 may include instructions executable by the processor 1640 to cause the device 1605 to perform various aspects of the functionality signaling for uplink transmissions described herein, or the processor 1640 and the memory 1630 may be configured to perform or support such operations, as the case may be.

[0267] FIG. 17 illustrates a flowchart of an example method 1700 for supporting capability signaling for uplink transmissions according to aspects of the disclosure. The operations of method 1700 may be performed by a UE or components thereof as described herein. For example, the operations of method 1700 may be performed by a UE 115 as described with reference to FIGS. 1-12. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0268] The method may include, at 1705, transmitting a first control message to a network entity reporting a bundled transmission capability of the UE to maintain phase continuity for a set of a plurality of physical uplink channels. The operations of 1705 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1705 may be performed by a bundling capability manager 1125 as described with reference to FIG.

[0269] The method may include, at 1710, receiving control signaling from a network entity based on the first control message to schedule a set of multiple physical uplink channels according to a bundled transmission function. The operations of 1710 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1710 may be performed by a scheduling manager 1130 as described with reference to FIG.

[0270] The method may include, at 1715, transmitting, based on the control signaling, a set of multiple physical uplink channels having phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels. The operations of 1715 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1715 may be performed by a physical uplink channel transmission manager 1135 as described with reference to FIG.

[0271] FIG. 18 illustrates a flowchart of an example method 1800 for supporting capability signaling for uplink transmissions according to aspects of the disclosure. The operations of the method 1800 may be performed by a UE or components thereof as described herein. For example, the operations of the method 1800 may be performed by a UE 115 as described with reference to FIGS. 1-12. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0272] The method may include receiving an indication of a timeslot format change from a network entity, at 1805. The operations of 1805 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1805 may be performed by a timeslot format manager 1140 as described with reference to FIG.

[0273] The method may include, at 1810, transmitting a first control message to a network entity reporting a bundled transmission capability of the UE to maintain phase continuity for a set of a plurality of physical uplink channels based at least in part on receiving the indication, the first control message indicating a frequency band, a subcarrier spacing, a modulation and coding scheme, or any combination thereof, associated with the bundled transmission capability. The operations of 1810 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1810 may be performed by a bundling capability manager 1125 as described with reference to FIG. 11.

[0274] The method may include, at 1815, receiving control signaling from a network entity based on the first control message to schedule the set of multiple physical uplink channels according to a bundled transmission function. The operations of 1815 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1815 may be performed by a scheduling manager 1130 as described with reference to FIG.

[0275] The method may include, at 1820, transmitting, based on the control signaling, a set of multiple physical uplink channels having phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels. The operations of 1820 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1820 may be performed by a physical uplink channel transmission manager 1135 as described with reference to FIG.

[0276] FIG. 19 illustrates a flowchart of an example method 1900 for supporting capability signaling for uplink transmissions according to aspects of the disclosure. The operations of method 1900 may be implemented by a network entity or components thereof as described herein. For example, the operations of method 1900 may be performed by network entity 105 as described with reference to FIGS. 1-8 and 13-16. In some examples, the network entity may execute a set of instructions to control functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may perform aspects of the described functions using dedicated hardware.

[0277] The method may include, at 1905, receiving a first control message from a UE reporting a bundled transmission capability of the UE that maintains phase continuity for a set of a plurality of physical uplink channels. The operations of 1905 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1905 may be performed by a bundling capability manager 1525 as described with reference to FIG.

[0278] The method may include, at 1910, receiving control signaling to schedule a set of multiple physical uplink channels according to a bundled transmission function based on the first control message. The operations of 1910 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1910 may be performed by a scheduling manager 1530 as described with reference to FIG.

[0279] The method may include, at 1915, receiving, based on the control signaling, a set of multiple physical uplink channels having phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels. The operations of 1915 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1915 may be performed by a physical uplink channel manager 1535 as described with reference to FIG.

[0280] FIG. 20 illustrates a flowchart of an example method 2000 for supporting capability signaling for uplink transmissions according to aspects of the disclosure. The operations of method 2000 may be implemented by a network entity or components thereof as described herein. For example, the operations of method 2000 may be performed by network entity 105 as described with reference to FIGS. 1-8 and 13-16. In some examples, the network entity may execute a set of instructions to control functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform aspects of the described functions.

[0281] The method may include, at 2005, transmitting an indication of the timeslot format change to the UE. The operations of 2005 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 2005 may be performed by a timeslot format manager 1540 as described with reference to FIG.

[0282] The method may include, in 2010, receiving from the UE a first control message reporting a bundled transmission capability of the UE to maintain phase continuity for a set of a plurality of physical uplink channels based at least in part on the transmitting instruction, the first control message indicating a frequency band, a modulation and coding scheme, or both, associated with the bundled transmission capability. The operations of 2010 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 2010 may be performed by a bundling capability manager 1525 as described with reference to FIG. 15.

[0283] The method may include, at 2015, receiving control signaling to schedule a set of multiple physical uplink channels according to a bundled transmission function based on the first control message. The operations of 2015 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 2015 may be performed by a scheduling manager 1520 as described with reference to FIG.

[0284] The method may include, at 2020, receiving, based on the control signaling, a set of multiple physical uplink channels having phase continuity and a set of multiple demodulation reference signals corresponding to the set of multiple physical uplink channels. The operations of 2020 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 2020 may be performed by a physical uplink channel manager 1535 as described with reference to FIG.

[0285] The following provides a summary of aspects of the disclosure.

[0286] Aspect 1: A method for wireless communications in a UE, comprising: transmitting a first control message to a network entity reporting a bundled transmission capability of the UE that maintains phase continuity for a plurality of physical uplink channels; receiving control signaling from the network entity that schedules the plurality of physical uplink channels according to the bundled transmission capability; and transmitting, based at least in part on the control signaling, the plurality of physical uplink channels having phase continuity and a plurality of demodulation reference signals corresponding to the plurality of physical uplink channels.

[0287] Aspect 2: The method of aspect 1, wherein at least two consecutive physical uplink channels of the plurality of physical uplink channels are separated by a time period.

[0288] Aspect 3: The method of aspect 2, wherein the time period is of shorter duration than the slot.

[0289] Aspect 4: The method of any of aspects 1 to 3, wherein the time period is a duration of a slot or greater.

[0290] Aspect 5: A method as described in any of aspects 1 to 4, wherein the step of transmitting the first control message includes the step of transmitting the first control message indicating that the UE is capable of maintaining phase continuity for multiple physical uplink channels scheduled across multiple time slots.

[0291] Aspect 6: The method of aspect 5, wherein at least a portion of the plurality of time slots are contiguous in time within the plurality of time slots.

[0292] Aspect 7: The method of any of aspects 1 to 6, wherein the step of transmitting the first control message includes transmitting the first control message indicating a frequency band, a modulation and coding scheme, or both, associated with the bundled transmission capability.

[0293] Aspect 8: The method of any of aspects 1 to 7, wherein the step of transmitting the first control message includes the step of transmitting a first control message indicating whether the UE can maintain phase continuity for the plurality of physical uplink channels when at least one of the plurality of physical uplink channels includes one or more intervening non-bundled transmissions.

[0294] Aspect 9: The method of any of aspects 1 to 8, wherein the step of transmitting the first control message includes the step of receiving a second control message from a network entity indicating a change in the timeslot format, and the step of transmitting the first control message is based at least in part on receiving the second control message.

[0295] Aspect 10: The method of any of aspects 1 to 9, wherein the step of transmitting the first control message includes a step of the UE transmitting the first control message indicating that the UE is capable of maintaining phase continuity for the multiple physical uplink channels when the multiple physical uplink channels are scheduled in the same time slot.

[0296] Aspect 11: A method according to any of aspects 1 to 10, wherein the step of transmitting the first control message includes the step of transmitting the first control message indicating that the UE is capable of maintaining phase continuity for a plurality of physical uplink channels scheduled across a plurality of time slots.

[0297] Aspect 12: The method of aspect 11, wherein the multiple time slots are contiguous in time or include at least one intervening time slot.

[0298] Aspect 13: The method of any of aspects 1 to 12, wherein the step of transmitting the first control message includes the step of transmitting the first control message indicating a frequency band, a subcarrier spacing, a modulation and coding scheme, or any combination thereof, associated with the reported capability.

[0299] Aspect 14: The method of any of aspects 1 to 13, wherein the step of transmitting the first control message includes the step of transmitting the first control message indicating a threshold number of time slots for a time period between at least two consecutive physical uplink channels over which the UE can maintain phase continuity.

[0300] Aspect 15: The method of any of aspects 1 to 14, wherein the step of transmitting the first control message includes transmitting a first control message requesting that the network entity refrain from scheduling uplink transmissions, or downlink transmissions, or both, for the UE for a time period.

[0301] Aspect 16: The method of any of aspects 1 to 15, wherein the step of transmitting the first control message includes transmitting a first control message indicating that the UE supports scheduling of one or more downlink transmissions, one or more reference signal measurement durations, or any combination thereof, for a time period.

[0302] Aspect 17: The method of any of aspects 1 to 16, wherein the step of transmitting the first control message includes the step of transmitting a first control message indicating that the UE supports scheduling of one or more uplink transmissions for a time period.

[0303] Aspect 18: The method of aspect 17, wherein receiving the control signaling includes receiving control signaling configuring a same set of parameter values ​​for each transmission of a plurality of physical uplink channels and for one or more uplink transmissions.

[0304] Aspect 19: The method of aspect 18, wherein the same set of parameters includes a bandwidth, a transmit power, a modulation order, a number of layers, an antenna port, a transmit precoding matrix index, a carrier, a transmit chain switching configuration, or any combination thereof.

[0305] Aspect 20: The method of any of aspects 1 to 19, wherein transmitting the first control message includes transmitting a first control message indicating that the UE supports scheduling of one or more intervening uplink transmissions during a first portion of a time period, a second portion of a time period including a transmission gap after an intervening scheduled transmission, or any combination thereof.

[0306] Aspect 21: The method of any of aspects 1 to 20, wherein the step of transmitting the first control message includes the step of transmitting the first control message indicating a maximum duration for a time period between at least two consecutive physical uplink channels over which the UE can maintain phase continuity.

[0307] Aspect 22: The method of any of aspects 1 to 21, wherein the step of transmitting the first control message includes the step of transmitting a first control message indicating that the UE supports transmission of multiple physical uplink channels all scheduled within the same frame.

[0308] Aspect 23: The method of any one of aspects 1 to 22, wherein the step of transmitting the first control message includes the step of transmitting the first control message indicating that the UE is capable of maintaining phase continuity for multiple physical uplink channels scheduled across multiple carriers in carrier aggregation.

[0309] Aspect 24: The method of aspect 23, wherein the step of transmitting the first control message includes the step of transmitting a first control message indicating that the UE can maintain phase continuity for a plurality of physical uplink channels scheduled across a first carrier of the plurality of carriers during a first transmission window that is time-aligned to a second transmission window of a second carrier of the plurality of carriers.

[0310] Aspect 25: The method of any of aspects 1 to 24, wherein the step of transmitting the first control message includes the step of transmitting the first control message indicating that the UE is capable of maintaining phase continuity for multiple physical uplink channels scheduled across multiple transmit chains.

[0311] Aspect 26: The method of any one of aspects 1 to 25, wherein the plurality of physical uplink channels includes a plurality of physical uplink shared channels, a plurality of physical uplink control channels, or both.

[0312] Aspect 27: The method of any of aspects 1 to 26, wherein the multiple physical uplink channels include multiple repetitions of the same physical uplink channel, or two or more different physical uplink channels scheduled by multiple downlink control information messages, or any combination thereof.

[0313] Aspect 28: A method for wireless communication in a network entity, comprising: receiving a first control message from a UE reporting a bundled transmission capability of the UE that maintains phase continuity for a plurality of physical uplink channels; transmitting control signaling to the UE that schedules the plurality of physical uplink channels according to the bundled transmission capability based at least in part on the first control message; and receiving, at least in part on the control signaling, the plurality of physical uplink channels having phase continuity and a plurality of demodulation reference signals corresponding to the plurality of physical uplink channels.

[0314] Aspect 29: The method of aspect 28, wherein at least two consecutive physical uplink channels of the plurality of physical uplink channels are separated by a time period.

[0315] Aspect 30: The method of aspect 29, wherein the time period is of shorter duration than the slot.

[0316] Aspect 31: The method of any of aspects 29 to 30, wherein the time period is a duration of a slot or greater.

[0317] Aspect 32: The method of aspect 28, further comprising the step of transmitting a second control message to the UE indicating a change in the timeslot format, wherein the step of receiving the first control message is based at least in part on transmitting the second control message.

[0318] Aspect 33: The method of any of aspects 28 to 32, wherein the step of receiving the first control message includes a step of the UE receiving a first control message indicating that the UE is capable of maintaining phase continuity for the multiple physical uplink channels when the multiple physical uplink channels are scheduled in the same time slot.

[0319] Aspect 34: The method of any of aspects 28 to 33, wherein receiving the first control message includes receiving a first control message indicating that the UE is capable of maintaining phase continuity for a plurality of physical uplink channels scheduled across a plurality of time slots.

[0320] Aspect 35: The method of aspect 34, wherein at least a portion of the plurality of time slots are contiguous in time within the plurality of time slots.

[0321] Aspect 36: The method of any of aspects 28 to 35, wherein receiving the first control message includes receiving a first control message indicating a frequency band, a subcarrier spacing, a modulation and coding scheme, or any combination thereof, associated with the bundled transmission capability.

[0322] Aspect 37: The method of any of aspects 28 to 36, wherein receiving the first control message includes receiving a first control message indicating a threshold number of time slots for a time period between at least two consecutive physical uplink channels over which the UE can maintain phase continuity.

[0323] Aspect 38: The method of any of aspects 28 to 37, wherein receiving the first control message includes receiving a first control message requesting the network entity to refrain from scheduling uplink transmissions, or downlink transmissions, or both, for the UE for a time period.

[0324] Aspect 39: The method of any of aspects 28 to 38, wherein receiving the first control message includes receiving a first control message indicating that the UE supports scheduling of one or more downlink transmissions, one or more reference signal measurement durations, or any combination thereof, for a time period between at least two consecutive physical uplink channels.

[0325] Aspect 40: The method of any of aspects 28 to 39, wherein receiving the first control message includes receiving a first control message indicating that the UE supports scheduling of one or more uplink transmissions for a time period.

[0326] Aspect 41: The method of aspect 40, wherein the step of transmitting the control signaling includes the step of transmitting control signaling configuring a same set of parameter values ​​for each transmission of the plurality of physical uplink channels and for the one or more uplink transmissions.

[0327] Aspect 42: The method of aspect 41, wherein the same set of parameters includes a bandwidth, a transmit power, a modulation order, a number of layers, an antenna port, a TPMI, a carrier, a transmit chain switching configuration, or any combination thereof.

[0328] Aspect 43: The method of any of aspects 28 to 42, wherein receiving the first control message includes receiving a first control message indicating that the UE supports scheduling of one or more intervening uplink transmissions during a first portion of a time period, a second portion of a time period including a transmission gap after an intervening scheduled transmission, or any combination thereof.

[0329] Aspect 44: The method of any of aspects 28 to 43, wherein receiving the first control message includes receiving a first control message indicating a maximum duration for a time period between at least two consecutive physical uplink channels over which the UE can maintain phase continuity.

[0330] Aspect 45: The method of any of aspects 28 to 44, wherein receiving the first control message includes receiving a first control message indicating that the UE supports transmission of multiple physical uplink channels all scheduled within the same frame.

[0331] Aspect 46: The method of any of aspects 28 to 45, wherein the step of receiving the first control message includes a step of receiving a first control message indicating that the UE is capable of maintaining phase continuity for multiple physical uplink channels scheduled across multiple carriers in a carrier aggregation scenario.

[0332] Aspect 47: The method of aspect 46, wherein the step of receiving the first control message includes the step of receiving a first control message indicating that the UE can maintain phase continuity for a plurality of physical uplink channels scheduled across a first carrier of the plurality of carriers during a first transmission window that is time-aligned to a second transmission window of a second carrier of the plurality of carriers.

[0333] Aspect 48: The method of any of aspects 28 to 47, wherein the step of receiving the first control message includes the step of receiving a first control message indicating that the UE is capable of maintaining phase continuity for multiple physical uplink channels scheduled across multiple transmit chains.

[0334] Aspect 49: The method of any one of aspects 28 to 48, wherein the plurality of physical uplink channels includes a plurality of physical uplink shared channels, a plurality of physical uplink control channels, or both.

[0335] Aspect 50: The method of any of aspects 28 to 49, wherein the multiple physical uplink channels include multiple repetitions of the same physical uplink channel, or two or more different physical uplink channels scheduled by multiple downlink control information messages, or any combination thereof.

[0336] Aspect 51: An apparatus for wireless communication in a UE, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform any of the methods of aspects 1 to 27.

[0337] An apparatus for wireless communication in a UE, comprising at least one means for performing the method of any of aspects 1 to 27.

[0338] Aspect 53: A non-transitory computer-readable medium storing code for wireless communication in a UE, the code comprising instructions executable by a processor to perform the method of any of aspects 1 to 27.

[0339] Aspect 54: A computer program comprising code for wireless communication that, when executed by a processor of a UE, causes the processor to perform any of the methods of aspects 1 to 27.

[0340] Aspect 55: An apparatus for wireless communication in a network entity, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform any of the methods of aspects 28 to 50.

[0341]

[0081] Example 56: An apparatus for wireless communication in a network entity, comprising at least one means for performing the method of any of examples 28 to 50.

[0342] Aspect 57: A non-transitory computer-readable medium storing code for wireless communication in a network entity, the code including instructions executable by a processor to perform any of the methods of aspects 28 to 50.

[0343] Aspect 58: A computer program comprising code for wireless communication that, when executed by a processor of a network entity, causes the processor to perform any of the methods of aspects 28 to 50.

[0344] It should be noted that the methods described herein describe possible implementations, that the acts and steps may be rearranged or otherwise modified, and that other implementations are possible. Additionally, aspects from two or more of these methods may be combined.

[0345] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described as examples, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used throughout much of the description, the techniques described herein may be applicable to other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0346] The information and signals described herein may be represented using any of a wide variety of technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0347] The various example blocks and components described with respect to the disclosure herein may be implemented or performed using a general purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, 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 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).

[0348] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. When implemented in software executed by a processor, the functions may be stored on or transmitted via a computer-readable medium as one or more instructions or codes. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features implementing the functions may also be physically located in various locations, including being distributed such that parts of the functions are implemented in different physical locations.

[0349] Computer-readable media includes both non-transitory computer storage media and communication media, including any medium that facilitates transfer of a computer program from one place to another. Non-transitory storage media may be any available medium that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general purpose or special purpose computer or a general purpose or special purpose processor. 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, radio, and microwave, the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included within the definition of computer readable media. As used herein, disk and disc include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, where disks typically reproduce data magnetically and discs reproduce data optically using lasers. Combinations of the above are also included within the scope of computer readable media.

[0350] As used herein, including within the claims, "or" as used in a list of items (e.g., a list of items beginning with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, such as, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Also, the phrase "based on" as used herein should not be construed as a reference to a closed set of conditions. For example, an exemplary step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, the phrase "based on" as used herein is to be construed similarly to the phrase "based at least in part on."

[0351] The terms "determine" or "determining" encompass a wide variety of actions, and thus "determining" can include calculating, computing, processing, deriving, investigating, looking up (e.g., by looking up in a table, database, or another data structure), ascertaining, etc. "Determining" can also include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), etc. "Determining" can also include resolving, selecting, choosing, establishing, and other such similar actions.

[0352] In the accompanying figures, similar components or features may have the same reference label. Furthermore, various components of the same type may be distinguished by following the reference label with a dash and a second label that distinguishes the similar components. If only a first reference label is used herein, the description is applicable to any of the similar components having the same first reference label, regardless of the second reference label, or any other subsequent reference label.

[0353] The description set forth herein with respect to the accompanying drawings describes exemplary configurations and does not necessarily represent all examples that may be implemented or are within the scope of the claims. As used herein, the term "exemplary" means "serving as an example, instance, or illustration" and does not mean "preferred" or "advantageous over other examples." The detailed description includes specific details for the purposes of providing an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0354] The description herein is provided to enable any person skilled in the art to make or use the disclosure. Various modifications of the disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein. [Explanation of symbols]

[0355] 100 Wireless communication system 105 Network Entities 115 UE 120 backhaul communication links 125 Communication Links 130 Core Network 135 Communication Links 140 Access Network Entity 145 Access Network Transmission Entity 150 IP Services 160 Central Unit (CU) 165 Distributed Unit (DU) 170 Radio Unit (RU) 175 RIC 180 Service Management and Orchestration (SMO) 200 Resource Configuration 210, 210-a, 210-b, 210-c slots 215 PUSCH transmission 220 DMRS 300 Resource Configuration 305-a, 305-b Resource Allocation Method 310a, 310-b, 310-c, 310-d, 310-e, 310-f, 310-g, 310-h slots 400 DMRS bundling method 405-a, 405-b span 500 Timeline 505-a, 505-b, 505-c Time Gap 510 Bundle Transmission 515 Unbundled Transmission 600 Timeline 605-a, 605-b bundle transmission 610-a, 610-b Non-bundled transmission 615 1st transmit chain 620 Second Transmit Chain 700 Timeline 705 Time Gap 710 Bundle Transmission 715 Unbundled Transmission 720 hour period 725 hour period 800 Process Flow 900 Block Diagram 905 Devices 910 Receiver 915 Transmitter 920 Communications Manager 1000 Block Diagram 1005 Devices 1010 Receiver 1015 Transmitter 1020 Communications Manager 1025 Bundling Function Manager 1030 Scheduling Manager 1035 Physical Uplink Channel Transmission Manager 1100 Block Diagram 1120 Communications Manager 1125 Bundling Function Manager 1130 Scheduling Manager 1135 Physical Uplink Channel Transmission Manager 1140 Timeslot Format Manager 1145 Topological Continuity Manager 1150 Parameter Value Manager 1200 System 1205 Devices 1210 I / O Controller 1215 Transceiver 1220 Communications Manager 1225 Antenna 1230 Memory 1235 Code 1240 Processor 1245 Bus 1300 Block Diagram 1305 Devices 1310 Receiver 1315 Transmitter 1320 Communications Manager 1400 Block Diagram 1405 Devices 1410 Receiver 1415 Transmitter 1420 Communications Manager 1425 Bundling Feature Manager 1430 Scheduling Manager 1435 Physical Uplink Channel Manager 1500 Block Diagram 1520 Communications Manager 1525 Bundling Function Manager 1530 Scheduling Manager 1535 Physical Uplink Channel Manager 1540 Timeslot Format Manager 1545 Timing Manager 1550 Parameter Value Manager 1600 System 1605 Devices 1610 Network Communications Manager 1615 Transceiver 1620 Communications Manager 1625 Antenna 1630 Memory 1635 Code 1640 processor 1645 Inter-Station Communication Manager 1650 Bus 1700 methods 1800 methods 1900 method 2000 methods

Claims

1. 1. A method for wireless communication in a user equipment (UE), comprising: transmitting a first control message to a network entity, the first control message reporting a bundled transmission capability of the UE that maintains phase continuity for a plurality of physical uplink channels, the transmitting of the first control message comprising: transmitting the first control message indicating whether the UE is capable of maintaining phase continuity for the plurality of physical uplink channels when at least one of the plurality of physical uplink channels includes one or more intervening non-bundled transmissions; transmitting the first control message indicating that the UE supports scheduling of one or more intervening uplink transmissions during a first portion of a time period, a second portion of the time period that includes a transmission gap after an intervening scheduled transmission, or any combination thereof; or transmitting the first control message indicating that the UE is capable of maintaining phase continuity for a plurality of physical uplink channels scheduled across a plurality of transmit chains. and receiving control signaling from the network entity scheduling the plurality of physical uplink channels in accordance with the bundled transmission function; transmitting, based at least in part on the control signaling, the plurality of physical uplink channels with phase continuity and a plurality of demodulation reference signals corresponding to the plurality of physical uplink channels.

2. The method of claim 1 , wherein at least two consecutive physical uplink channels of the plurality of physical uplink channels are separated by a time period.

3. The method of claim 2 , wherein the time period is of less duration than a slot.

4. The method of claim 2 , wherein the time period is equal to or greater than a slot in duration.

5. 2. The method of claim 1, further comprising: receiving a second control message from the network entity indicating a change in a timeslot format, and wherein transmitting the first control message is based at least in part on receiving the second control message.

6. The plurality of physical uplink channels include:

10. The method of claim 1, comprising a plurality of physical uplink shared channels, a plurality of physical uplink control channels, or both.

7. The plurality of physical uplink channels include:

2. The method of claim 1, comprising multiple repetitions of the same physical uplink channel, or two or more different physical uplink channels scheduled by multiple downlink control information messages, or any combination thereof.

8. 1. A method for wireless communication in a network entity, comprising: receiving a first control message from a user equipment (UE) reporting a bundled transmission capability of the UE to maintain phase continuity for a plurality of physical uplink channels, the receiving of the first control message comprising: receiving the first control message indicating whether the UE is capable of maintaining phase continuity for the plurality of physical uplink channels when at least one of the plurality of physical uplink channels includes one or more intervening non-bundled transmissions; receiving the first control message indicating that the UE supports scheduling of one or more intervening uplink transmissions during a first portion of a time period, a second portion of the time period including a transmission gap after an intervening scheduled transmission, or any combination thereof; or receiving the first control message indicating that the UE is capable of maintaining phase continuity for a plurality of physical uplink channels scheduled across a plurality of transmit chains; and transmitting control signaling to the UE to schedule the plurality of physical uplink channels according to the bundled transmission function based at least in part on the first control message; receiving, based at least in part on the control signaling, the plurality of physical uplink channels having phase continuity and a plurality of demodulation reference signals corresponding to the plurality of physical uplink channels.

9. 9. The method of claim 8, wherein at least two consecutive physical uplink channels of the plurality of physical uplink channels are separated by a time period.

10. The method of claim 9 , wherein the time period is of less duration than a slot.

11. The method of claim 9 , wherein the time period is equal to or greater than a slot in duration.

12. The plurality of physical uplink channels include:

9. The method of claim 8, comprising multiple repetitions of the same physical uplink channel, or two or more different physical uplink channels scheduled by multiple downlink control information messages, or any combination thereof.

13. An apparatus for wireless communication in a user equipment (UE), comprising: A transceiver; A processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of claims 1 to 7.

14. An apparatus for wireless communication in a network entity, comprising: A transceiver; A processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of claims 8 to 12.

Images