Functional signaling for uplink demodulation reference signal bundling.

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 on May 10, 2021, entitled "CAPABILITY SIGNALING FOR UPLINK DEMODULATION REFERENCE SIGNAL BUNDLING", by Sridharan et al., and U.S. Patent Application No. 17 / 739,016 filed on May 6, 2022, entitled "CAPABILITY SIGNALING FOR UPLINK DEMODULATION REFERENCE SIGNAL BUNDLING", by Sridharan et al., both of which are assigned to the assignee of the present application.

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

Background Art

[0003] Wireless communication systems are widely deployed to provide various types of communication content, including voice, video, packet data, messaging, and broadcast. These systems can sometimes support 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 called 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). 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 sometimes be known as user equipment (UEs). [Overview of the Initiative] [Means for solving the problem]

[0004] The techniques described relate to improved methods, systems, devices, and apparatus, as well as computer-readable media and computer programs, that support functional signaling transmission. This application provides the solutions defined in the independent claims. Any modifications are defined in the dependent claims.

[0005] In general, a UE may report its demodulated reference signal (DMRS) bundling capabilities for maintaining phase continuity across multiple uplink channels when intervening time gaps occur between consecutive uplink transmits (e.g., multiple uplink transmits on a physical uplink channel). For example, consecutive uplink transmits may include, among several other examples, first and second transmits that are temporally adjacent or sequential (e.g., transmits in adjacent slots) and a time gap between the first and second transmits (e.g., a time gap of symbols in the slot containing the first transmit). In some examples, the first transmit may be located in a first slot, and the second transmit may be located in a third slot (e.g., following an intervening second slot). The transmits are sequential and therefore sometimes called consecutive transmits, but may be separated by a time gap (e.g., an intervening second slot). In some examples, the first and second transmits may be located in adjacent slots (e.g., sometimes called consecutive, adjacent, or sequential). However, the first transmission may not occupy the entire slot and the remainder of the first adjacent slot, thereby the time gap between consecutive uplink transmissions may include one or more symbols of the consecutive slots (for example, the remainder 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 control messages containing functional information, and the network entity may configure the uplink transmissions accordingly so that the UE can maintain uplink phase continuity across the intervening time gap. In some examples, the UE may demonstrate that phase continuity can be maintained across multiple uplink channels even when there is an intervening time gap between at least one pair of consecutive uplink transmissions.

[0006] Functional information may include indicating whether the UE can maintain phase continuity across a set of uplink transmissions, either within the same slot or across multiple slots. Functional information may also indicate whether phase continuity can be maintained across 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 temporally consecutive pair of bundled uplink channels), when the UE switches to a transmit chain or component carrier (CC) for the transmission of one or more uplink channels, or when the UE can maintain phase continuity across a set of bundled uplink channels transmitted across different carriers. Functional information may be presented per bandwidth, per subcarrier interval, per modulation and coding scheme (MCS), etc. In some examples, the UE may indicate the maximum duration of a time gap, or the maximum amount of time gap over which uplink or downlink signaling can be scheduled, the minimum time between the endpoint 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. This method may include the steps of: sending a first control message to a network entity reporting the UE's bundled transmission capability, which maintains phase continuity over a set of multiple physical uplink channels (for example, multiple uplink transmissions on one or more physical uplink channels); receiving control signaling from the network entity based on the first control message, which schedules the set of multiple physical uplink channels according to the reported capability; and, based on the control signaling, transmitting a set of multiple physical uplink channels having phase continuity, and a set of multiple demodulated reference signals corresponding to the set of multiple physical uplink channels.

[0008] A device for wireless communication in a UE is described. The device may include a processor, memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor and may cause the device to send a first control message to a network entity reporting the UE's bundle transmit function that maintains phase continuity over a set of multiple physical uplink channels; to receive control signaling from the network entity based on the first control message that schedules the set of multiple physical uplink channels according to the bundle transmit function; and to transmit, based on the control signaling, a set of multiple physical uplink channels with phase continuity, and a set of multiple demodulated reference signals corresponding to the set of multiple physical uplink channels.

[0009] Another apparatus for wireless communication in a UE is described. The apparatus may include means for transmitting a first control message to a network entity reporting the UE's bundle transmit capability which maintains phase continuity over a set of multiple physical uplink channels; means for receiving control signaling from the network entity based on the first control message which schedules the set of multiple physical uplink channels according to the bundle transmit capability; and means for transmitting, based on the control signaling, a set of multiple physical uplink channels having phase continuity, and a set of multiple demodulated reference signals corresponding to the set of multiple physical uplink channels.

[0010] A non-temporary computer-readable medium for storing code for wireless communications in a UE is described. Similarly, a computer program containing code for wireless communications in a UE is described. The code may include instructions executable by a processor, which may cause the instructions to send a first control message to a network entity reporting the UE's bundle transmit capability that maintains phase continuity over a set of multiple physical uplink channels; to receive control signaling from the network entity based on the first control message, which schedules the set of multiple physical uplink channels according to the bundle transmit capability; and, based on the control signaling, to transmit a set of multiple physical uplink channels having phase continuity, and a set of multiple demodulated reference signals corresponding to the set of multiple physical uplink channels.

[0011] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, at least two consecutive physical uplink channels of a 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-temporary computer-readable media described herein, the time period is a duration shorter than a slot.

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

[0014] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, transmitting a first control message may include an operation, feature, means, or instruction for transmitting a first control message indicating that the UE can maintain phase continuity with respect to a set of physical uplink channels that can be scheduled across a set of time slots.

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

[0016] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, transmitting a first control message may include an operation, feature, means, or instruction for transmitting a first control message that indicates a frequency band, modulation and coding scheme, or both, associated with a bundled transmission function.

[0017] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, transmitting a first control message may include an operation, feature, means, or instruction for transmitting a first control message indicating whether the UE can maintain phase continuity with respect to a set of physical uplink channels when at least one of the set of physical uplink channels includes one or more intervening non-bundled transmissions.

[0018] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, transmitting a 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 time slot format, and transmitting a first control message may be based on receiving a second control message.

[0019] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, transmitting a first control message may include an operation, feature, means, or instruction for transmitting a first control message indicating that the UE can maintain phase continuity with respect to a set of physical uplink channels when the set of multiple physical uplink channels is scheduled within the same time slot.

[0020] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, transmitting a first control message may include an operation, feature, means, or instruction for transmitting a first control message indicating that the UE can maintain phase continuity with respect to a set of physical uplink channels that can be scheduled across a set of time slots.

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

[0022] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, transmitting a first control message may include an operation, feature, means, or instruction for transmitting a first control message that indicates a frequency band, subcarrier spacing, modulation and coding scheme, or any combination thereof, associated with a bundled transmission function.

[0023] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, transmitting a first control message may include an operation, feature, means, or instruction for transmitting a first control message indicating a threshold number of time slots for a time period between at least two consecutive physical uplink channels in which phase continuity can be maintained.

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

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

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

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

[0028] In some examples of the methods, apparatuses, 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 indicator, carrier, transmit chain switching configuration, or any combination thereof.

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

[0030] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, transmitting a first control message may include an operation, feature, means, or instruction for transmitting a first control message indicating a maximum duration of time between at least two consecutive physical uplink channels that can maintain phase continuity.

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

[0032] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, transmitting a first control message may include an operation, feature, means, or instruction for transmitting a first control message indicating that the UE can maintain phase continuity with respect to a set of physical uplink channels scheduled across a set of carriers in carrier aggregation.

[0033] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, transmitting a first control message may include an operation, feature, means, or instruction for transmitting a first control message indicating that the UE can maintain phase continuity with respect to a set of multiple physical uplink channels scheduled across a set of multiple carriers between first transmission windows that can be temporally aligned with a second transmission window of a second carrier in a set of multiple carriers.

[0034] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, transmitting a first control message may include an operation, feature, means, or instruction for transmitting a first control message indicating that the UE can maintain phase continuity with respect to a set of physical uplink channels scheduled across a set of transmission chains.

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

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

[0037] A method for wireless communication in a network entity is described. This method may include the steps of: receiving a first control message from the UE reporting the UE's bundle transmit function that maintains phase continuity over a set of multiple physical uplink channels; sending a control signaling to the UE based on the first control message that schedules the set of multiple physical uplink channels according to the bundle transmit function; and receiving a set of multiple physical uplink channels having phase continuity, and a set of multiple demodulated reference signals corresponding to the set of multiple physical uplink channels, based on the control signaling.

[0038] A device for wireless communication in a network entity is described. The device may include a processor, memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor and may cause the device to receive a first control message from the UE reporting the UE's bundle transmit function that maintains phase continuity over a set of multiple physical uplink channels; to send control signaling to the UE, based on the first control message, scheduling the set of multiple physical uplink channels according to the bundle transmit function; and to receive, 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.

[0039] Another apparatus for wireless communication in a network entity is described. This apparatus may include means for receiving a first control message from the UE reporting the UE's bundle transmit function that maintains phase continuity over a set of multiple physical uplink channels; means for transmitting a control signaling to the UE, based on the first control message, that schedules the set of multiple physical uplink channels according to the bundle transmit function; and means for receiving a set of multiple physical uplink channels having phase continuity, and a set of multiple demodulated reference signals corresponding to the set of multiple physical uplink channels, based on the control signaling.

[0040] A non-temporary computer-readable medium for storing code for wireless communication in a network entity is described. Similarly, a computer program containing code for wireless communication in a network entity is described. The code may include instructions executable by a processor, which may cause the instructions to: receive a first control message from the UE reporting the UE's bundle transmit function that maintains phase continuity over a set of multiple physical uplink channels; transmit a control signaling to the UE, based on the first control message, that schedules the set of multiple physical uplink channels according to the bundle transmit function; and receive, based on the control signaling, a set of multiple physical uplink channels having phase continuity, and a set of multiple demodulated reference signals corresponding to the set of multiple physical uplink channels.

[0041] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, at least two consecutive physical uplink channels of a 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-temporary computer-readable media described herein, the time period is a duration shorter than a slot.

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

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

[0045] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, receiving a first control message may include an operation, feature, means, or instruction for receiving a first control message indicating that the UE can maintain phase continuity with respect to a set of physical uplink channels when the set of multiple physical uplink channels is scheduled within the same time slot.

[0046] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, receiving a first control message may include an operation, feature, means, or instruction for receiving a first control message indicating that the UE can maintain phase continuity with respect to a set of physical uplink channels that can be scheduled across a set of time slots.

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

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

[0049] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, receiving a first control message may include an operation, feature, means, or instruction 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 in which phase continuity can be maintained.

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

[0051] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, receiving a first control message may include an operation, feature, means, or instruction for receiving a first control message indicating that the UE supports scheduling 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-temporary computer-readable media described herein, receiving a first control message may include an operation, feature, means, or instruction for receiving a first control message indicating that the UE supports scheduling one or more uplink transmissions over a period of time.

[0053] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, transmitting control signaling may include operations, features, means, or instructions for transmitting control signaling that constitutes the 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-temporary computer-readable media described herein include 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-temporary computer-readable media described herein, receiving a first control message may include an operation, feature, means, or instruction for receiving a first control message indicating that the UE supports scheduling 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-temporary computer-readable media described herein, receiving a first control message may include an operation, feature, means, or instruction for receiving a first control message indicating a maximum duration of time between at least two consecutive physical uplink channels that can maintain phase continuity.

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

[0058] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, receiving a first control message may include an operation, feature, means, or instruction for receiving a first control message indicating that the UE can maintain phase continuity with respect to a set of multiple physical uplink channels scheduled across a set of multiple carriers between first transmission windows that can be temporally aligned with a second transmission window of a second carrier in a set of multiple carriers.

[0059] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, receiving a first control message may include an operation, feature, means, or instruction for receiving a first control message indicating whether the UE can maintain phase continuity with respect to a set of multiple physical uplink channels that can be scheduled across a set of multiple time slots, when at least one of a 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-temporary computer-readable media described herein, receiving a first control message may include an operation, feature, means, or instruction for receiving a first control message indicating that the UE can maintain phase continuity with respect to a set of multiple physical uplink channels scheduled across a set of multiple carriers between first transmission windows that can be temporally aligned with a second transmission window of a second carrier in a set of multiple carriers.

[0061] In some examples of the methods, apparatus, computer programs, and non-temporary computer-readable media described herein, receiving a first control message may include an operation, feature, means, or instruction for receiving a first control message indicating that the UE can maintain phase continuity with respect to a set of physical uplink channels scheduled across a set of transmission chains.

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

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

[0064] [Figure 1]This figure shows an example of a wireless communication system that supports functional signaling transmission according to the aspects of this disclosure. [Figure 2] This figure shows an example of a resource configuration according to the aspects of this disclosure. [Figure 3] This figure shows an example of a resource configuration according to the aspects of this disclosure. [Figure 4] This figure shows an example of a demodulation reference signal bundling method according to the embodiments of this disclosure. [Figure 5] This figure shows an example of a demodulated reference signal bundling configuration according to the embodiments of this disclosure. [Figure 6] This figure shows an example of a timeline supporting functional signaling for uplink transmission according to the aspects of this disclosure. [Figure 7] This figure shows an example of a timeline supporting functional signaling for uplink transmission according to the aspects of this disclosure. [Figure 8] This figure shows an example of a process flow according to the aspects of this disclosure. [Figure 9] This is a block diagram of an exemplary device according to an aspect of the present disclosure. [Figure 10] This is a block diagram of an exemplary device according to an aspect of the present disclosure. [Figure 11] This is a block diagram of an exemplary communications manager according to an aspect of the present disclosure. [Figure 12] This is a diagram illustrating an exemplary system including a device according to an aspect of the present disclosure. [Figure 13] This is a block diagram of an exemplary device according to an aspect of the present disclosure. [Figure 14] This is a block diagram of an exemplary device according to an aspect of the present disclosure. [Figure 15] This is a block diagram of an exemplary communications manager according to an aspect of the present disclosure. [Figure 16] This is a diagram illustrating an exemplary system including a device according to an aspect of the present disclosure. [Figure 17]This flowchart shows an exemplary method for supporting functional signaling for uplink transmission according to an aspect of the present disclosure. [Figure 18] This flowchart shows an exemplary method for supporting functional signaling for uplink transmission according to an aspect of the present disclosure. [Figure 19] This flowchart shows an exemplary method for supporting functional signaling for uplink transmission according to an aspect of the present disclosure. [Figure 20] This flowchart shows an exemplary method for supporting functional signaling for uplink transmission according to an aspect of the present disclosure. [Modes for carrying out the invention]

[0065] Some wireless communication systems may support multiple uplink transmissions (e.g., repetition of a single message on a physical uplink shared channel (PUSCH) or 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 is sometimes called bundling and may involve using the same set of parameters for each set of uplink transmissions (e.g., the same frequency resources, the same transmit power, the same spatial transmit relation, the same antenna port, the same precoding, etc.). Maintaining phase continuity may also involve transmitting the first and second transmissions such that the two transmissions do not contain a discontinuity exceeding a threshold. For example, the difference between the phase of the first transmission and the phase of the second transmission satisfies a threshold phase difference at the boundary between the two transmissions (e.g., the phases are approximately the same or within the threshold difference).

[0066] Bundling one or more sets of transmissions may support joint processing of demodulation reference signals (DMRS) at the base station. The base station may perform joint channel estimation over 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 estimations for multiple time slots using DMRS transmissions transmitted by the UE within the set of uplink channels, and use the joint channel estimations to demodulate multiple uplink transmissions received within the set of uplink channels.

[0067] In some examples, uplink transmissions may be continuous within a single time slot, continuous across multiple time slots, discontinuous within a single time slot (e.g., a time gap between at least two uplink transmissions), or discontinuous across multiple time slots (e.g., continuous or discontinuous time slots). 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 an UE can maintain phase continuity under various circumstances. If a base station is unable to recognize the UE's 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 false assumption that the UE can maintain phase continuity across the entire set of scheduled uplink transmissions), the UE may be unable 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, transmission failure, retransmission, increased system latency, etc. However, if a base station incorrectly determines that an advanced UE with enhanced capabilities in some or all use cases cannot 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 the computational and system efficiencies available to the advanced UE may not be fully utilized.

[0069] Techniques are described for a UE to report uplink transmit bundling capabilities for maintaining phase continuity across multiple physical uplink channels (e.g., multiple uplink transmits on a physical uplink channel, e.g., DMRS). In some examples, the UE may indicate that phase continuity can be maintained across a set of multiple uplink transmits (e.g., multiple physical uplink channels) even if there is a time gap intervening between at least one pair of consecutive bundled uplink channels. The UE may transmit a control message containing capability information, and the base station may, accordingly, configure the uplink transmits so that the UE can maintain phase continuity over configured uplink channels across the intervening time gap. The capability information may include indicating whether the UE can maintain phase continuity across a set of uplink transmits in the same slot or across multiple slots. Functional 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 switching the transmit chain or component carrier (CC) for the transmission of one or more uplink channels, or when the UE can maintain phase continuity across a set of uplink channels transmitted over different carriers. Functional information may be presented per bandwidth, per subcarrier interval, per modulation and coding scheme (MCS), etc. In some examples, the UE may indicate the maximum duration for a time gap, or the maximum amount of time gap over which uplink or downlink signaling can be scheduled, the minimum time between the endpoint of an intervening uplink or downlink signal and the next uplink transmission, or any combination thereof.

[0070] The aspects of this disclosure are first described in the context of wireless communication systems. The aspects of this disclosure are further illustrated by resource configurations, DMRS bundling configurations, timelines, and process flows, and are described with reference to them. The aspects of this disclosure are further illustrated by apparatus diagrams, system diagrams, and flowcharts relating to functional signaling for uplink transmission, and are described with reference to them.

[0071] Figure 1 shows an example of a wireless communication system 100 supporting functional signaling for uplink transmission according to an aspect of this 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 expressly described herein. In some examples, the wireless communication system 100 may support extended broadband communication, ultra-high reliability (e.g., mission-critical) communication, low-latency communication, communication with low-cost and low-complexity devices, or any combination thereof.

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

[0073] The UE115 may be distributed across the entire coverage area 110 of the wireless communication system 100, and each UE115 may be fixed, mobile, or both at different times. The UE115 may be devices of different forms or with different capabilities. Several exemplary UE115 are shown in Figure 1. The UE115 described herein may communicate with various types of devices, such as other UE115, 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 Figure 1.

[0074] As described herein, the nodes of the wireless communication system 100 may be called network nodes or wireless nodes and may be network entities 105 (e.g., any network entities described herein), UE 115 (e.g., any UE described herein), network controllers, apparatus, devices, computing systems, one or more components, or other suitable processing entities 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 yet another example, the first node may be configured to communicate with a second or 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 another aspect of this example, the first, second, and third nodes may differ from those examples. Similarly, references to UE115, network entity 105, apparatus, device, computing system, etc., may include disclosures of UE115, network entity 105, apparatus, device, computing system, etc., which are nodes. For example, a disclosure that UE115 is configured to receive information from network entity 105 also discloses that a first node is configured to receive information from a second node.

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

[0076] One or more of the network entities 105 (e.g., base stations) described herein may include, or be referred to by, a preferred term, base station, access point, radio transceiver, node B, eNode B (eNodeB:eNB), next-generation node B or giganode B (either of which may be called gNB), home node B, home eNode B, 5G NB, next-generation eNB (ng-eNB), home node B, home eNode B, or other preferred terms. In some examples, the network entities 105 (e.g., base stations) may be implemented in aggregated (e.g., monolithic, standalone) base station architectures, which may be configured to utilize a physically or logically integrated protocol stack 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 embodiments of network entities 105) may be implemented in a disassembled architecture (e.g., a disassembled base station architecture, a disassembled RAN architecture), which may be configured to utilize a physically or logically distributed protocol stack among 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., a Cloud RAN (C-RAN)). For example, the network entity 105 may include one or more of the following: 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 called a radio head, smart radio head, remote radio head (RRH), remote radio unit (RRU), or transmit / receive point (TRP). One or more components of the work entity 105 in the disassembled RAN architecture may be collocated, 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 disassembled RAN architecture may be implemented as virtual units (e.g., virtual CUs (VCUs), virtual DUs (VDUs), virtual RUs (VRUs)).

[0078] The functional partitioning between CU160, DU165, and RU170 is flexible and can 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 CU160, DU165, or RU170. For example, functional partitioning of the protocol stack may be used between CU160 and DU165 so that CU160 can support one or more layers of the protocol stack, and DU165 can support one or more different layers of the protocol stack. In some examples, CU160 may host higher protocol layer functions (e.g., Layer 3 (L3), Layer 2 (L2)) and signaling (e.g., Radio Resource Control (RRC), Service Data Adaptive Protocol (SDAP), Packet Data Convergence Protocol (PDCP)). CU160 may be connected to DU165 or RU170, 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 controlled at least partially by CU160. Additionally or alternatively, a functional decomposition of the protocol stack may be used between DU165 and RU170 so that DU165 may support one or more layers of the protocol stack, and RU170 may support one or more different layers of the protocol stack. DU165 may support one or more different cells (e.g., via one or more RU170s). In some cases, the functional partitioning between CU160 and DU165, or between DU165 and RU170, may be performed within the protocol layer (for example, some functions of the protocol layer may be performed by one of CU160, DU165, or RU170, while other functions of the protocol layer may be performed by different units of CU160, DU165, or RU170).CU160 may be further divided in terms of function into CU control plane (CU-CP) functions and CU user plane (CU-UP) functions. CU160 may be connected to DU165 via midhaul communication links (e.g., F1, F1-c, F1-u), and DU165 may be connected to one or more RU170 via fronthaul communication links (e.g., open fronthaul (FH) interfaces). In some examples, the midhaul or fronthaul communication links may be implemented according to the interlayer interfaces (e.g., channels) of the protocol stacks supported by each network entity 105 communicating over such communication links.

[0079] In a wireless communication system (e.g., wireless communication system 100), the infrastructure and spectral resources for radio access may support wireless backhaul link functionality to assist wired backhaul connections and form an IAB network architecture (e.g., to a 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 each other. One or more IAB nodes may also be called donor entities or IAB donors. A DU 165 or one or more RU 170s 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., backhaul communication link 120). An IAB node may include an IAB mobile termination (IAB-MT) controlled (e.g., scheduled) by the DU 165 of a combined IAB donor. An IAB-MT may include a separate set of antennas for relaying communications with the UE115, or it may share the same antennas (e.g., RU170) of an IAB node used to access via the DU165 of an IAB node (e.g., a virtual IAB-MT (vIAB-MT)). In some examples, an IAB node may include a DU165 that supports communication links with relay chains or additional entities (e.g., IAB nodes, UE115) in the access network (e.g., downstream). In such cases, one or more components of the disassembled RAN architecture (e.g., one or more IAB nodes or components of an IAB node) may be configured to operate according to the techniques described herein.

[0080] For the techniques described herein, applied in the context of a disassembled RAN architecture, one or more components of the disassembled RAN architecture may be configured to support phase-tracking reference signals and demodulation reference signals for joint channel estimation as described herein. For example, some operations described as being performed by UE115 or network entity 105 (e.g., base station) may be performed additionally or alternatively by one or more components of the disassembled RAN architecture (e.g., IAB node, DU165, CU160, RU170, RIC175, SMO180).

[0081] UE115 may include, or may be referred to as, a mobile device, wireless device, remote device, handheld device, or subscriber device, or any other appropriate term, and “device” may also be referred to as a unit, station, terminal, or client, among other things. UE115 may also include, or may be referred to as, a personal electronic device such as a mobile phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, UE115 may also include, or may be referred to as, a wireless local loop (WLL) station, an Internet of Things (IoT) device, any Internet of Things (IoE) device, or a machine-type communications (MTC) device, among other things, which may be implemented in an appliance, or various items such as a vehicle, meter, etc.

[0082] The UE115 described herein may be able to communicate with other UE115s that may act as relays, as shown in Figure 1, as well as with various types of devices such as network entities 105 and network equipment, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations.

[0083] UE115 and network entity 105 may communicate wirelessly with each other via one or more communication links 125 over one or more carriers. The term “carrier” may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication links 125. For example, a carrier used for a communication link 125 may include a portion of the radio frequency spectrum band (e.g., a bandwidth part (BWP)) operating 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 collected signaling (e.g., synchronization signals, system information), control signaling that can coordinate operations with the carrier, user data, or other signaling. The wireless communication system 100 may support communication with UE115 using carrier aggregation or multi-carrier operation. UE115 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) component carriers and time division duplex (TDD) component carriers. Communication between network entity 105 and other devices may refer to communication between a device and any part of network entity 105 (e.g., an entity, a sub-entity). For example, when referring to network entity 105, the terms “transmit,” “receive,” or “communicate” may refer to any part of network entity 105 in the RAN (e.g., a base station, CU160, DU165, RU170) communicating with another device (e.g., directly or via one or more other network entities 105).

[0084] In some examples (for instance, in carrier aggregation configurations), a carrier may also have acquisition or control signaling to coordinate its operation with other carriers. A carrier may be associated with a frequency channel (e.g., an 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 UE115. A carrier may operate in standalone mode, where initial acquisition and connection may be performed via the carrier by the UE115, or it may operate in non-standalone mode, where connection is anchored using different carriers (e.g., the same or different radio access technologies).

[0085] The communication link 125 shown in the wireless communication system 100 may, in particular, include an uplink transmission from UE 115 to network entity 105 (e.g., base station), or a downlink transmission from network entity 105 to UE 115 (e.g., forward link transmission), an uplink transmission from network entity 105 to UE 115 (e.g., reply link transmission), or both. The carrier may carry downlink communication or uplink communication (e.g., in FDD mode), or may be configured to carry both downlink communication and uplink communication (e.g., in TDD mode).

[0086] A carrier may be associated with a specific 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 the carrier of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)). Devices of the wireless communication system 100 (e.g., network entity 105, UE115, or both) may have a hardware configuration that supports communication on a specific carrier bandwidth, or may be configurable to support communication on one of the carrier bandwidths in a set of carrier bandwidths. In some examples, the wireless communication system 100 may include network entity 105 or UE115 that support simultaneous communication over carriers associated with multiple carrier bandwidths. In some examples, each UE115 being served may be configured to operate on a portion (e.g., subband, BWP) or all of the carrier bandwidth.

[0087] The signal waveform transmitted on the carrier may consist of multiple subcarriers (for example, using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM). In systems employing MCM techniques, a resource element may consist of one symbol period (e.g., duration of one modulation symbol) and one subcarrier, where the symbol period and 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). Therefore, the more resource elements the UE115 receives, and the higher the order of the modulation scheme, the higher the data rate for the UE115 can be. Wireless communication resources may refer to a combination of radio frequency spectral resources, temporal 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 communication with the UE115.

[0088] One or more numerologies may be supported for a carrier, where the numerology may include a subcarrier interval (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. In some examples, UE115 may consist of multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communication for UE115 may be limited to one or more active BWPs.

[0089] The time interval for network entity 105 or UE115 is, for example, T s = 1 / (Δf max ·N f ) seconds may refer to a sampling period, and may also be expressed as a multiple of the basic time unit, where Δf maxThis may represent the maximum supported subcarrier interval, N f This may represent the maximum supported Discrete Fourier Transform (DFT) size. The time interval of the communication resources 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 contain multiple sequentially numbered subframes or slots, each subframe or slot having the same duration. In some examples, a frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into several slots. Alternatively, each frame may contain a variable number of slots, the number of slots may depend on the subcarrier interval. Each slot may contain several symbol periods (e.g., depending on the length of the cyclic prefix prepared for each symbol period). In some wireless communication systems 100, a slot may be further divided into several minislots containing one or more symbols. Except for the cyclic prefix, each symbol period may contain one or more (e.g., N) symbols. f The sampling period may include (1) units. The waiting time for the symbol period may depend on the subcarrier interval or the frequency bandwidth of the operation.

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

[0092] Physical channels may be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels may be multiplexed on a downlink carrier using one or more of the following techniques: time-division multiplexing (TDM), frequency-division multiplexing (FDM), or hybrid TDM-FDM. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by the number of symbol periods and may extend across the carrier's system bandwidth or a subset of the system bandwidth. One or more control regions (e.g., CORESETs) may be configured for a set of UE115s. For example, one or more UE115s may monitor or search for control regions for control information according to one or more search space sets, each search space set may include one or more control channel candidates in one or more aggregation levels configured in a cascaded manner. An aggregation level for control channel candidates may refer to a number of control channel resources (e.g., control channel elements (CCEs)) associated with encoded information for a control information format having a given payload size. The search space set may include a common search space set configured to send control information to multiple UE115s, and a UE-specific search space set for sending control information to a specific UE115.

[0093] Each network entity 105 may provide communication coverage through one or more cells, such as macrocells, small cells, hotspots, or other types of cells, or any combination thereof. The term “cell” may refer to a logical communication entity used for communication with network entity 105 (for example, on a carrier) and may be associated with an identifier for distinguishing neighboring cells (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other). In some examples, a cell may also refer to a geographical coverage area 110 or a portion of geographical coverage area 110 (e.g., a sector) on which the logical communication entity operates. Such cells may range from smaller areas (e.g., structures, subsets of structures) to larger areas, depending on various factors such as the capabilities of network entity 105. For example, a cell may be, among other things, a building, a subset of a building, or external space between or overlapping with geographical coverage area 110.

[0094] Macrocells generally cover relatively large geographical areas (e.g., a radius of several kilometers) and may enable unrestricted access by UE115s subscribed to the services of a network provider that supports macrocells. Small cells may be associated with lower-power network entities 105 compared to macrocells, and small cells may operate in the same or different frequency bands as macrocells (e.g., licensed, unlicensed). Small cells may provide unrestricted access to UE115s subscribed to the services of a network provider, or they may provide restricted access to UE115s associated with small cells (e.g., UE115s in a closed subscriber group (CSG), UE115s associated with users 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 can provide access to different types of devices.

[0096] In some examples, the network entity 105 may be mobile and therefore capable of providing communication coverage to a moving geographical coverage area 110. In some examples, different geographical coverage areas 110 associated with different technologies may overlap, but these different geographical coverage areas 110 may be supported by the same network entity 105. In other examples, overlapping geographical 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, in which different types of network entities 105 provide coverage to various geographical coverage areas 110 using the same or different radio access technologies.

[0097] The wireless communication system 100 may support synchronous or asynchronous operation. In synchronous operation, network entities 105 may have similar frame timings, and transmissions from different network entities 105 may be approximately time-coordinated. In asynchronous operation, network entities 105 may have different frame timings, and transmissions from different network entities 105 may, in some cases, not be time-coordinated. The techniques described herein may be used for either synchronous or asynchronous operation.

[0098] Some UE115, such as MTC devices or IoT devices, may be low-cost or low-complexity devices that can provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that enables 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 it to a human interacting with the application program. Some UE115 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 detection, physical access control, and transaction-based business billing.

[0099] Some UE115s may be configured to employ power-saving operating modes, such as half-duplex communication (e.g., modes that support one-way communication via transmit or receive, but not simultaneous transmit and receive). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power-saving techniques for the UE115 include entering a power-saving deep sleep mode when not engaged in active communication, operating over a limited bandwidth (e.g., according to narrowband communication), or a combination of these techniques. For example, some UE115s may be configured for operation using narrowband protocol types related to a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within, within, or outside the carrier.

[0100] The wireless communication system 100 may be configured to support ultra-high reliability communication, low latency communication, or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-high reliability low latency communication (URLLC) or mission-critical communication. The UE 115 may be designed to support ultra-high reliability, low latency, or critical functions (e.g., mission-critical functions). Ultra-high reliability communication may include private or group communication 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 functions may include service prioritization, and mission-critical services may be used for public safety or general commercial purposes. The terms ultra-high reliability, low latency, mission-critical, and ultra-high reliability low latency may be used interchangeably herein.

[0101] In some examples, UE115 may also communicate directly with other UE115 via a device-to-device (D2D) communication link 135 (for example, using a peer-to-peer (P2P) protocol or a D2D protocol). One or more UE115s utilizing D2D communication may be within the geographical coverage area 110 of the network entity 105. Other UE115s in such a group may be outside the geographical coverage area 110 of the network entity 105, or in some cases, may not be able to receive transmissions from the network entity 105. In some examples, a group of UE115s communicating via D2D communication may utilize a one-to-many (1:M) system where each UE115 transmits to any other UE115 in the group. In some examples, the network entity 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication takes place between UE115s 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 side-link communication channel. In some examples, vehicles may communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or any combination thereof. Vehicles may signal information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information related to the V2X system. In some examples, vehicles in the V2X system may communicate with roadside infrastructure such as roadside units, or with the 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 a 5G core (5GC), which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME), an access and mobility management function (AMF)), and at least one user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW), a Packet Data Network (PDN) gateway (P-GW), or a user plane function (UPF)). The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for the UE 115, which is serviced by the network entity 105 associated with the core network 130. User IP packets may be forwarded through user plane entities that may provide IP address allocation and other functions. The user plane entity may be connected to an IP service 150 for one or more network operators. The IP service 150 may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or a packet-switched streaming service.

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

[0105] The wireless communication system 100 may typically operate using one or more frequency bands in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally, the region from 300 MHz to 3 GHz is called the ultra-high frequency (UHF) region or decimeter band, as the wavelengths range from approximately 1 decimeter to 1 meter. UHF waves may be blocked or redirected by building and environmental characteristics, but the waves may penetrate structures well enough for a macrocell to service an indoor UE 115. Transmitting UHF waves may involve smaller antennas and shorter distances (e.g., less than 100 kilometers) compared to transmitting using lower frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

[0106] The wireless communication system 100 may also operate in the super high frequency (SHF) region using a frequency band from 3 GHz to 30 GHz, also known as the centimeter band, or in the extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz), also known as the millimeter band. In some examples, the wireless communication system 100 can support millimeter wave (mmW) communication between the UE 115 and the network entity 105, and the EHF antennas of each device may be smaller and more closely spaced than UHF antennas. In some examples, this may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may be subject to greater atmospheric attenuation than SHF or UHF transmissions and may have shorter distances. The techniques disclosed herein may be employed across transmissions using one or more different frequency domains, and the specified use of bands across these frequency domains 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 unlicensed bands such as the 5 GHz Industrial Scientific Medical (ISM) band. When operating in unlicensed radio frequency spectrum bands, devices such as network entities 105 and UE115 may employ carrier detection for collision detection and avoidance. In some examples, operation in unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating in licensed bands (e.g., LAA). Operation in unlicensed spectrums may include, among other things, downlink transmission, uplink transmission, P2P transmission, or D2D transmission.

[0108] A network entity (base station) or UE115 may be equipped with multiple antennas that can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of the network entity 105 or UE115 may be located within one or more antenna arrays or antenna panels that can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be collated in an antenna assembly such as an antenna tower. In some examples, the antennas or antenna arrays associated with the network entity 105 may be located in diverse geographical locations. The network entity 105 may have an antenna array having several rows and columns of antenna ports that the network entity 105 can use to support beamforming for communication with the UE115. Similarly, the UE115 may have one or more antenna arrays that can support various MIMO or beamforming operations. As an addition or alternative, an antenna panel may support radio frequency beamforming for signals transmitted through the antenna ports.

[0109] Network entities 105 or UE115 may use MIMO communication to enhance spectral efficiency by leveraging multipath signal propagation by transmitting or receiving multiple signals through different spatial layers. Such techniques are sometimes called spatial multiplexing. Multiple signals may be transmitted by a transmitting device through, for example, different antennas or different combinations of antennas. Similarly, multiple signals may be received by a receiving device through different antennas or different combinations of antennas. Each of the multiple signals may be called a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), where multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), where multiple spatial layers are transmitted to multiple devices.

[0110] Beamforming, sometimes called spatial filtering, directional transmission, or directional reception, is a signal processing technique that can be used in a transmitting or receiving device (e.g., network entity 105, UE115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting and receiving devices. Beamforming may be achieved by combining signals communicated through the antenna elements of an antenna array such that several signals propagating in a particular direction relative to the antenna array undergo constructive interference, while other signals undergo destructive interference. The coordination of signals communicated through antenna elements may include the transmitting or receiving device applying amplitude offset, phase offset, or both to the signals carried through the antenna elements associated with the device. The coordination associated with each antenna element may be defined by a beamforming weight set associated with a particular direction (e.g., relative to the antenna array of the transmitting or receiving device, or to some other direction).

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

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

[0113] In some examples, transmission by a device (e.g., by network entity 105 or UE115) 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 network entity 105 to UE115). UE115 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. Network entity 105 may transmit reference signals that may or may not be precoded (e.g., cell-specific reference signal (CRS), channel state information reference signal (CSI-RS)). UE115 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 will be described with reference to signals transmitted by the network entity 105 in one or more directions, but the UE 115 may employ similar techniques to transmit signals multiple times in different directions (for example, to identify beam directions for subsequent transmission or reception by the UE 115) or to transmit signals in a single direction (for example, to transmit data to a receiving device).

[0114] When a receiving device (e.g., UE115) receives various signals from a network entity 105, such as synchronization signals, reference signals, beam selection signals, or other control signals, it may attempt multiple receiving configurations (e.g., directional listening). For example, the receiving device may attempt multiple receiving directions by receiving through different antenna subarrays, by processing the received signal according to different antenna subarrays, by receiving according to different sets of receive beamforming weights (e.g., different directional listening weights) applied to the received signal at multiple antenna elements of an antenna array, or by processing the received signal according to different sets of receive beamforming weights applied to the received signal at multiple antenna elements of an antenna array, any of which may be referred to as “listening” by different receiving configurations or receiving directions. In some examples, the receiving device may use a single receiving configuration to receive along a single beam direction (e.g., when receiving a data signal). The single receiving configuration may be matched to a beam direction determined based on listening by different receiving configuration directions (e.g., a beam direction determined to have the highest signal intensity, the highest signal-to-noise ratio (SNR), or possibly acceptable signal quality based on listening by multiple beam directions).

[0115] The wireless communication system 100 may be a packet-based network operating 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 for communication on logical channels. The Medium Access Control (MAC) layer may perform priority processing and multiplexing of logical channels to transport channels. The MAC layer may also use error detection techniques, error correction techniques, or both to improve link efficiency by supporting retransmission at the MAC layer. In the control plane, the Radio Resource Control (RRC) protocol layer may establish, configure, and maintain RRC connections between the UE 115 and network entities 105 or the core network 130, supporting radio bearers for user plane data. At the physical layer, transport channels may be mapped to physical channels.

[0116] UE115 and network entity 105 may support data retransmission to increase the likelihood of successful data reception. Hybrid automatic repeat request (HARQ) feedback is one technique to increase the likelihood of data being correctly received on 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 can improve throughput at the MAC layer under poor radio conditions (e.g., low signal-to-noise conditions). In some examples, devices may support same-slot HARQ feedback, where the device provides HARQ feedback within a slot for data received in a previous symbol within a particular slot. In other cases, the device may provide HARQ feedback in subsequent slots or according to some other time interval.

[0117] In general, UE115 may report uplink transmit bundling capabilities for maintaining phase continuity across multiple physical uplink channels (e.g., multiple uplink transmits on one or more physical uplink channels). Uplink transmits may be DMRS. UE115 may send control messages containing capability information, and the network entity may, accordingly, configure the physical uplink channels so that UE115 can maintain uplink phase continuity across intervening time gaps between bundled physical uplink channels. In some examples, UE115 may indicate that phase continuity can be maintained across multiple uplink transmits on one or more physical uplink channels even if there is an intervening time gap between at least one pair of consecutive uplink transmits. The capability information may include indicating whether UE115 can maintain phase continuity across a set of uplink transmits in the same slot or across multiple slots. Functional information may also indicate whether phase continuity can be maintained across 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 uplink channels, when UE115 can maintain phase continuity across a set of uplink channels when switching the transmit chain or component carrier (CC) for the transmission of one or more uplink channels, or when UE115 can maintain phase continuity across a set of uplink channels transmitted over different carriers. Functional information may be shown per bandwidth, per subcarrier interval, per modulation and coding scheme (MCS), etc. In some examples, UE115 may indicate the maximum duration for a time gap, or the maximum amount of time gap over which uplink or downlink signaling can be scheduled, the minimum time between the endpoint of an intervening uplink or downlink signal and the next uplink transmission, or any combination thereof.

[0118] Figure 2 shows an example of a resource configuration 200 supporting functional signaling for uplink transmission according to an aspect of this disclosure. In some examples, the resource configuration 200 implements, or may implement, an aspect of a wireless communication system 100. The resource configuration 200 represents a set of resources 205 across a plurality of slots 210 that may be used for sending and receiving phase-coherent transmissions, such as DMRS. Techniques described in other parts of this specification with reference to Figure 2, as illustrated with reference to slot 210, may be performed for any transmit time interval (TTI) (e.g., slot, minislot, subslot, symbol, frame, subframe, etc.). Furthermore, the resource configuration 200 includes a PUSCH transmission 215, although techniques described herein may be performed with reference to PUCCH.

[0119] As referred to herein, some wireless communication systems (e.g., wireless communication system 100) may improve channel estimation by allowing a wireless device (e.g., UE 115) to transmit bundled uplink transmissions, such as phase-continuous DMRS 220 (e.g., phase-coherent DMRS 220). For example, UE 115 may transmit a set of phase-continuous DMRS 220 to network entity 105 within a set of resources known to both UE 115 and network entity 105. In this example, since the phase-continuous DMRS 220 are received by network entity 105 within a set of known resources, network entity 105 may be configured to aggregate the phase-continuous DMRS 220 to make a more accurate channel estimation of the channel between UE 115 and network entity 105. In that case, network entity 105 may use the improved channel estimation to demodulate (e.g., decode) other transmissions (e.g., PUSCH transmission 215) received from UE 115 over the channel. In some embodiments, the PUSCH transmit 215 may be transmitted such that it has phase continuity across each slot 210.

[0120] Some wireless communication systems allow bundling DMRS220 within a single TTI, but not across multiple TTIs. For example, in some wireless communication systems, UE115 may be configured to transmit a set of DMRS220 with phase continuity within a first slot 210-a, but may not be able to maintain phase coherence for DMRS220 transmitted in different slots 210. For example, in some wireless communication systems, UE115 may not be able to maintain phase continuity across DMRS220 transmitted in a first slot 210-a and a second slot 210-b. In this regard, phase continuity may be maintained for DMRS220 within each respective slot 210, but not for DMRS220 across multiple slots 210.

[0121] In some other wireless communication systems (for example, wireless communication system 100), the DMRS220 may be bundled across multiple slots and / or multiple transmissions (for example, PUCCH or PUSCH transmissions), thereby maintaining phase continuity across multiple slots 210 and / or multiple transmissions. For example, in wireless communication system 100, the UE115 may be configured to transmit the DMRS220 within a first slot 210-a, a second slot 210-b, and a third slot 210-c, maintaining phase continuity across each of 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 DMRS 220 received across slots 210-a, 210-b, and 210-c when performing channel estimation (e.g., cross-slot channel estimation), and may demodulate the PUSCH transmission 215 (e.g., a phase-continuous PUSCH transmission 215) received across slots 210-a, 210-b, and 210-c using the channel estimations made.

[0122] In some embodiments, one or more parameters or characteristics may be maintained for phase-coherent DMRS220 bundled across one or more slots 210. Parameters that may be used to maintain phase continuity for DMRS220 associated with one or more PUSCH transmitters 215 may include, but are not limited to, phase, frequency allocation, transmit power, spatial transmit relationship, antenna port used for transmission, precoding scheme, etc. For example, if the DMRS220 is bundled across a first slot 210-a, a second slot 210-b, and a third slot 210-c, as shown in Figure 2, the frequency allocation and transmission for the DMRS220 in each respective slot 210 remain unchanged. Conversely, phase continuity may not be maintained across slot 210 and / or other transmissions (e.g., phase discontinuity) if slot 210 and / or the DMRS220 in each slot 210 exhibit one or more different parameters (e.g., different phase, different frequency resource allocation within or between PUSCH slots, discontinuous time resource allocation for PUSCH slots, different transmit power, different antenna ports, different timing advance).

[0123] In some embodiments, the ability to bundle DMRS220 across multiple slots 210 (maintaining phase coherence for DMRS220 across multiple slots 210), and / or bundle DMRS220 across multiple transmissions (e.g., multiple PUSCH transmissions 215), may enable improved channel estimation in a receiving device (e.g., network entity 105). In particular, by enabling the aggregation of more DMRS220 across multiple slots 210, the network entity 105 may be able to perform a more comprehensive channel estimation (e.g., cross-slot channel estimation), thereby improving the network entity 105's ability to demodulate the received PUSCH transmissions 215.

[0124] In some examples, different UE115s may have different capabilities. For example, some UE115s may be able to maintain phase continuity across a set of uplink channels across some consecutive slots 210 or some discontinuous slots. Some UE115s may be able to maintain phase continuity across different CCs or while switching transmit chains. Some UE115s may be able to maintain phase continuity across a set of uplink channels for a set of uplink transmits within or across slots 210, even if uplink or downlink transmits are scheduled in between. For example, a UE115 may be able to maintain phase continuity for an uplink push transmit 215 between slots 210-a and 210-b, even if different uplink transmits are scheduled between slots 210-b. Other UE115s may have more limited capabilities and may only be able to maintain phase continuity across a set of uplink channels if one or more rules or conditions are met. For example, such a UE115 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 if an uplink or downlink transmission intervening between consecutive uplink channels is scheduled. Additional limitations may apply to such a UE115, as will be described in more detail with reference to Figures 3-7.

[0125] In some examples, UE115 may transmit bundling capability information to the network entity. The network entity may schedule multiple uplink channels according to the bundling capability information (for example, so that the UE can maintain phase continuity across the scheduled multiple uplink channels without exceeding the UE's capabilities that allow the network entity to perform joint channel estimation).

[0126] The bundling function may differ for different use cases or bundling configurations, as will be explained in more detail with reference to Figure 4.

[0127] Figure 3 shows an example of a resource configuration 300 that supports functional signaling for uplink transmission according to an aspect of this disclosure. In some examples, the resource configuration 300 may implement an aspect of the wireless communication system 100, the resource configuration 200, or both, or may be implemented by both.

[0128] As previously described herein, a bundled DMRS having phase continuity across one or more slots 310 and / or one or more PUSCH transmits may allow a receiving device to aggregate the bundled DMRS and perform more accurate channel estimation, thereby potentially improving the demodulation of other received transmits.

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

[0130] In an additional or alternative embodiment, bundling DMRS 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 phase-continuity DMRS may be transmitted together with a set of PUSCH transmissions across multiple slots 310. In other words, phase continuity is maintained for DMRS bundled across the first slot 310-e, the second slot 310-f, the third slot 310-g, and the fourth slot 310-h.

[0131] As an addition or alternative, phase continuity is maintained for bundled DMRS across each PUSCH transmission. In this example, PUSCH transmissions in each slot 310 may include different PUSCH transmissions (e.g., different data payloads, different transport blocks), and each different PUSCH transmission may be scheduled by a different scheduling permission, DCI message, etc. For example, a PUSCH transmission in the first slot 310-e may be different from PUSCH transmissions in the second slot 310-f, the third slot 310-g, the fourth slot 310-h, or any combination thereof. For example, the first PUSCH transmission in the first slot 310-a may be scheduled by a first DCI message, and the second PUSCH transmission in the second slot 310-b may be scheduled by a second DCI message. Therefore, the four PUSCH transmissions within each of the slots 310 may include different PUSCH transmissions (e.g., different data payloads, different transport blocks) scheduled using different scheduling permissions (e.g., four separate DCI messages, each scheduling four PUSCH transmissions). In some cases, the PUSCH transmissions may be transmitted to have phase continuity across each of the slots 310. In this example, maintaining phase continuity across multiple slots 310 and / or bundled DMRS across 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), thereby enabling the receiving device to demodulate (e.g., decode) the different PUSCH transmissions received in each of the respective slots 310 more accurately and efficiently.

[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, UE115 may perform DMRS bundling for joint channel estimation if phase continuity can be maintained across the relevant PUSCH or PUCCH symbols. In some examples, phase continuity may not be a prerequisite for successful demodulation if the network entities can compensate for phase errors. In other examples, success of joint channel estimation may depend on the transmission of multiple uplink transmissions (e.g., over PUCCH or PUSCH) that maintain phase continuity.

[0133] Phase discontinuities may be due to one or more scenarios described herein (for example, with reference to Figure 4). For example, phase discontinuities may in some cases result from discontinuous time resource allocation. In some examples, if the timing gap between PUSCH symbols or slots is greater than the 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 continuous uplink transmissions for joint channel estimation, the UE115 may in some cases fail to maintain phase continuity across a set of uplink channels. Similarly, the UE115 may in some cases fail to maintain phase continuity across a set of uplink channels that have different transmit powers, different transmit waveforms, or different frequency resources allocated to them.

[0134] However, the threshold time between consecutive uplink transmissions that can maintain phase continuity may differ for some UE115s. Similarly, some UEs may support coherent transmissions of multiple uplink channels even when uplink signaling, downlink signaling, or both are scheduled between consecutive uplink transmissions. If a network entity does not have knowledge of in which use cases the UE115 can maintain phase continuity, the network entity may schedule uplink transmissions inefficiently. Instead, as described with reference to Figures 5-8, the UE115 may transmit bundling capability information to the network entity, which may then schedule uplink transmissions accordingly, enabling the UE115 to maintain phase continuity across the set of uplink channels, thereby enabling the network entity 105 to perform joint channel estimation.

[0135] Figure 4 shows an example of a DMRS bundling scheme 400 supporting functional signaling for uplink transmission according to an aspect of this disclosure. The DMRS bundling scheme 400 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 corresponding devices described with reference to Figures 1 to 3.

[0136] Network entity 105 may configure UE 115 with time slot format information (e.g., resource allocation information). For example, UE 115 may be configured in a time-division multiplexing (TDM) configuration, where each time slot (e.g., each TTI such as a slot, sub-slot, mini-slot, 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 S TTI may be allocated for uplink signaling, and some or all symbols in S TII may be allocated for downlink signaling. In some examples, the TDM resource allocation may include patterns of U, D, and S TTI. An exemplary pattern may be DDDSUDDSUU. Such a pattern may repeat itself over time (e.g., across different time slots). Span 405 defines the amount of time over a set of uplink transmissions being sent, while maintaining phase continuity for joint channel estimation. The repeating span 405 may depend on the slot pattern and how the symbols or slots should be used (e.g., U, D, or S).

[0137] In some cases, the exemplary pattern may be a UDDD that can be repeated over time. Network entity 105 may consist of one or more uplink transmissions in UE115 (e.g., four uplink transmissions between four different slots). The multiple uplink transmissions may be different transmissions or repetitions of a single transmission. In the example where the slot allocation includes a UDDD pattern, the 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 temporal span 405-a. Some UE115s may be able to maintain phase continuity over such a span 405-a. However, other UE115s may not be able to maintain phase continuity over such a long time, or across such a large time gap (e.g., three slots between each consecutive uplink transmission), or across intervening downlink transmissions (e.g., between D intervening 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, mini-slot, sub-slot, symbol, etc.) in a set of frequency resources (e.g., PUSCH or PUCCH) may be allocated for uplink signaling (e.g., U). The UE may transmit scheduled uplink signaling during each U time slot. For example, the network entity may configure the UE to transmit uplink messages four times in repetition between slots 0 and 3 (transmitting the uplink message three times after the initial transmission). In such an example, the multiple uplink transmissions (e.g., repetitions) may temporally cover a span 405-b. Some UE 115s may be able to maintain phase continuity across such a span 405-b. However, other UE 115s may not be able to maintain phase continuity across a span 405-b. Some UE115s may be able to maintain phase continuity even when intervening uplink transmissions are scheduled between uplink transmissions (for example, when the UE115 is not expected to maintain phase continuity). Other UE115s may not be able to maintain phase continuity across discontinuous U slots.

[0139] In some cases, the exemplary pattern may be a DDDUU that can be repeated over time. Network entity 105 may consist of UE 115 with one or more uplink transmissions (e.g., four uplink transmissions between four different slots). The multiple uplink transmissions may be different transmissions or repetitions of a single transmission. In the 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 temporal span 405-c. Some UE 115 may be able to maintain phase continuity over such a long period of time, across such a large time gap (e.g., three slots between consecutive uplink transmissions between slot 4 and slot 8), or across intervening downlink transmissions (e.g., between D intervening slots). Some UE115s may be able to maintain phase continuity between slots 3 and 4, but may not be able to maintain phase continuity between slots 4 and 8.

[0140] As will be further explained with reference to Figures 5-8, the network entity 105 may more efficiently schedule uplink transmissions in 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 can or cannot maintain phase continuity will be described in more detail with reference to Figure 5. Additional considerations and information that may be included in the bundling capability information will be described in more detail with reference to Figures 5-8.

[0141] Figure 5 shows an example of a timeline 500 supporting functional signaling for uplink transmission according to an aspect of this 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 corresponding devices described with reference to Figures 1 to 4.

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

[0143] UE115 may indicate in its bundling capability information whether it can or cannot support DMRS bundling (e.g., maintaining phase continuity) across multiple physical uplink channel transmissions (e.g., on PUCCH or PUSCH) that satisfy one or more conditions. For example, UE115 may indicate whether it can or cannot maintain phase continuity for back-to-back (e.g., continuous) uplink transmissions across multiple time slots (e.g., slots, minislots, subslots, symbols, frames, subframes, etc.) in a first transmission configuration. In such an example, a network entity may schedule bundled transmissions 510 in continuous slots in which UE115 can maintain phase continuity.

[0144] The UE115 may indicate in its bundling capability information that, in a second transmission configuration, it can (or cannot) maintain phase continuity across a set of uplink channels in back-to-back (e.g., continuous) transmissions on a physical uplink channel within a single time slot. In such an example, the network entity 105 may schedule continuous bundled transmissions 510 within individual time slots in which the UE115 can maintain phase continuity.

[0145] UE115 may indicate the maximum bundling duration (e.g., maximum span 405) if it can maintain phase continuity across a set of uplink channels for a back-to-back bundled transmit 510 (e.g., first transmit configuration, second transmit configuration, etc.). The maximum bundling duration may be expressed in absolute time, number of symbols, number of slots, offset value, etc. The maximum bundling duration may be expressed per modulation order (e.g., MCS), per subcarrier interval, per bandwidth, etc.

[0146] UE115 may indicate in its bundling capability information that it can (or cannot) maintain phase continuity across a set of uplink channels for non-back-to-back (e.g., discontinuous) bundled transmissions 510 within a time slot in a third transmission configuration. For example, UE115 may indicate in its bundling capability information that it can maintain phase continuity for multiple bundled transmissions 510 within a time slot (e.g., time slot 0) even if a pair of bundled transmissions 510 are separated by a time gap 505-a. In some examples, as will be explained in more detail with reference to Figures 6-8, UE115 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 represent the maximum amount of time between two consecutive bundled transmissions 510. If uplink transmissions are scheduled within the same time slot but are separated by an amount of time exceeding the threshold duration for the time gap 505-a, UE115 may not be able to maintain phase continuity within the time slot. The network entity 105 may schedule multiple bundle transmissions 510 within individual time slots based on the received bundling functionality information. In some examples, the UE 115 may schedule multiple bundle transmissions 510 separated for a time less than or equal to a threshold duration for the time gap 505-a.

[0147] The UE115 may indicate in its bundling capabilities information that it can (or cannot) maintain phase continuity over non-back-to-back (e.g., discontinuous) uplink channels scheduled across multiple time slots. The UE115 may also indicate in its bundling capabilities information that it can (or cannot) maintain phase continuity over continuous time slots in a fourth transmit configuration, or can (or cannot) maintain phase continuity over discontinuous time slots in a fifth transmit configuration, or both.

[0148] In some examples, UE115 may provide a limit on the time gap 505 (e.g., a threshold duration for the time gap 505) as part of the bundling functionality information (e.g., UE functionality information). For example, in a fourth transmit configuration, UE115 may indicate that phase continuity can be maintained with respect to discontinuous bundle transmits 510 across multiple slots (e.g., a bundle transmit 510 in each slot followed by one or more non-bundle transmits 515 (e.g., uplink or downlink signaling) or time gap 505-b (e.g., not including scheduled transmits)). In some examples, UE115 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). UE115 may determine that phase continuity cannot be maintained between a first bundle transmit 510 (e.g., in slot 2) and a second bundle transmit 510 (e.g., in slot 3) if the time gap 505-b exceeds the threshold duration for the time gap 505-b. Similarly, UE115 may indicate a threshold duration for time gap 505-c in the fifth transmit configuration. For example, time gap 505-c may correspond to a period of time (e.g., scheduled or unscheduled) between a first uplink transmit (e.g., in slot 0) and a second uplink transmit (e.g., in slot 2). UE115 may determine that phase continuity cannot be maintained between the first and second transmits if time gap 505-c exceeds a threshold duration for time gap 505-c. The threshold duration for time gap 505 may be indicated in the bundling function information as an absolute duration (e.g., in ms), number of symbols, number of slots, etc.

[0149] In some implementations, the fourth and fifth transmit configurations 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 the example of the fourth transmit configuration, the time period may have a duration shorter than the slot (e.g., including a scheduled transmit, not including a scheduled transmit, or both). In the example of the fifth transmit configuration, the time period may have a duration longer than the slot (e.g., including a scheduled transmit, not including a scheduled transmit, or both). In some cases, the UE115 may provide one or more indications as part of the bundling functionality information about whether the UE115 can maintain phase continuity according to the fourth transmit configuration, the fifth transmit configuration, or both.

[0150] UE115 may indicate in the bundling functionality information what can and cannot be supported (e.g., what can or cannot be done to maintain phase continuity) during the time gap 505 (e.g., during discontinuous uplink transmissions within or across time slots). For example, UE115 may indicate in the bundling functionality information that phase continuity can be maintained for a set of physical uplink channels when the time gap 505 (e.g., time gap 505-a in a third transmission configuration, time gap 505-b in a fourth transmission configuration, or time gap 505-c in a fifth transmission configuration) remains unscheduled (e.g., without scheduled downlink signaling or uplink signaling). In some examples, UE115 may indicate that the time gap 505 may be occupied by downlink reception. For example, UE115 may indicate that phase continuity can be maintained across a set of uplink channels for a discontinuous bundle transmission 510 when downlink signaling is scheduled during the time gap 505. In some examples, UE115 may indicate that the time gap 505 may be a measurement gap in which several reference signals are measured. Scheduling a measurement gap for the time gap 505 may differ from scheduling downlink signaling during the time gap 505 (for example, because UE115 performs measurements by partially or completely disconnecting the power to the transmit chain). In some examples, UE115 may indicate a portion of the time gap 505 that can be allocated for downlink signaling (as described in more detail, for example, with reference to Figure 7), a portion that can be allocated for reference signal measurements in the time gap 505 (for example, based on reference signals received in downlink scheduling in the 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 functionality information that the time gap 505 may be occupied by uplink transmissions (e.g., intervening unbundled transmissions 515 between consecutive bundled transmissions 510). In some examples, the UE 115 may indicate whether or not phase continuity can be maintained across the set of uplink channels if one or more intervening uplink transmissions (e.g., unbundled transmissions 515) are located on the same carrier as the bundled transmissions 510, on a different carrier than the bundled transmissions 510, or both. For example, a network entity may schedule one or more intervening uplink transmissions on physical uplink channels on a second carrier different from the first carrier on which the bundled set of uplink channels is scheduled. UE115 may or may not be able to maintain phase continuity across a bundled set of uplink channels on the first component carrier if the scheduled intervening uplink transmit lies on a second carrier (for example, a second carrier so far away that in the frequency domain UE115 would need to perform transmit chain switching or adjust one or more antenna port configurations to transmit or receive on the second carrier). UE115 may indicate this capability in the bundling capability information. UE115 may further indicate whether it can support transmit chain switching if it indicates that it can support an intervening unbundled transmit 515 during a time gap 505. For example, UE115 may indicate that it can maintain phase continuity across a set of uplink channels when switching between a bundled transmit 510 and an unbundled transmit 515 scheduled on different component carriers using the same transmit chain for transmits on different component carriers, as will be described in more detail with reference to Figure 6.Similarly, UE115 may demonstrate, as will be explained in more detail with reference to Figure 6, whether it is possible to maintain phase continuity across a set of uplink channels when switching between bundled and unbundled transmits 510 and unbundled transmits 515 scheduled on different component carriers using separate transmit chains for transmits on different component carriers.

[0152] UE115 may indicate in its bundling functionality information one or more parameter values ​​for unbundled transmits 515 scheduled during the time gap 505. For example, UE115 may indicate that phase continuity can be maintained across discontinuous bundled uplink transmits including the intervening unbundled transmit 515 if the unbundled transmit 515 has the same parameter values ​​as the bundled transmit 510. For example, UE115 may indicate that, when phase continuity is maintained across a set of uplink channels, the unbundled transmit 515 and the bundled transmit 510 have the same bandwidth, the same transmit power, the same modulation order (e.g., the same MCS), the same number of layers, and are transmitted at the same antenna port and transmit precoder matrix indicator (TPMI), or any combination thereof.

[0153] UE115 may indicate the maximum bundling duration (e.g., maximum span 405) if phase continuity can be maintained across the set of uplink channels for non-back-to-back bundled transmits 510 (e.g., third transmit configuration, fourth transmit configuration, fifth transmit configuration, etc.). The maximum bundling duration may be expressed in absolute time, number of symbols, number of slots, offset value, etc. The maximum bundling duration may be expressed per modulation order (e.g., MCS), per subcarrier interval, per bandwidth, etc.

[0154] In some examples, UE115 may demonstrate that it 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] Figure 6 shows an example of a timeline 600 supporting functional signaling for uplink transmission according to an aspect of this disclosure. The timeline 600 may implement an aspect of one or more wireless devices, such as the UE 115 and the network entity 105, or be implemented by such wireless devices, which may be examples of corresponding devices described with reference to Figures 1 to 5.

[0156] In some examples, as will be described in more detail with reference to Figure 5, UE115 may be able to maintain phase continuity for discontinuous uplink transmissions within or across time slots. UE115 may include in its bundling functionality information message one or more conditions or rules that uplink transmissions scheduled to maintain phase continuity across a set of uplink channels must satisfy. In some examples, UE may indicate that phase continuity can be maintained across a set of uplink channels if one or more intervening uplink transmissions are scheduled between bundled uplink transmissions, or if the intervening uplink transmissions satisfy one or more conditions. For example, UE115 may indicate that phase continuity can be maintained across a set of uplink channels for one or more intervening unbundled transmissions 610 scheduled on the same carrier as the bundled transmission. In some examples, UE115 may indicate that phase continuity can be maintained across a set of uplink channels for one or more intervening unbundled transmissions 610 scheduled on the same or different carriers (e.g., different carriers less than X MHz away from the bundled transmission) that satisfy a threshold frequency difference. In some examples, UE115 may be able to maintain phase continuity across a set of uplink channels for one or more intervening unbundled transmits 610 scheduled on the same bandwidth as bundled transmit 605. In such examples, UE may be able to alternate between bundled transmit 605-a and intervening unbundled transmit 610-a using the same transmit chain (e.g., first transmit chain 615), while maintaining phase continuity across a set of uplink channels transporting bundled transmit 605-a.For example, UE115 may transmit a first bundled transmit 605-a on a first uplink channel by involving a first transmit chain 615 in the transmit, and transmit an intervening unbundled transmit 610-a (for example, in the next slot) by involving the first transmit chain 615 in the transmit, while maintaining phase continuity across the set of uplink channels transporting the bundled transmit 605-a.

[0157] In some examples, UE115 may include in the bundling functionality information an indication that it cannot maintain phase continuity across a set of uplink channels for one or more intervening unbundled transmits 610 that require uplink transmit chain switching (for example, indicating that resources cannot be diverted from bundled transmit 605). For example, UE115 may indicate that it cannot maintain phase continuity across a set of uplink channels for the transmissions of the first bundled transmit 605-b and the second bundled transmit 605-b when an intervening unbundled transmit 610-b is transmitted using the second transmit chain 620 (while the first transmit chain 615 is idle).

[0158] In some examples, UE115 may be shown to maintain phase continuity across the set of uplink channels even when switching between the first transmit chain 615 and the second transmit chain 620 to transmit bundled transmit 605-b and intervening unbundled transmit 610-b.

[0159] The UE115 may report in its bundling functionality information whether phase continuity can be maintained across the bundled set of physical uplink channels for uplink carrier aggregation (ULCA). The UE115 may also transmit the bundling functionality 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 UE115 may indicate in its functionality information that phase continuity can be maintained across the bundled set of physical uplink channels during carrier aggregation when the bundling window (e.g., bundling duration or span 405) is aligned across multiple carriers. This allows for management of uplink transmit power splitting across carriers.

[0160] UE115 may indicate in its bundling functionality information one or more thresholds for the maximum time gap value, or for the portion of the time gap between discontinuous bundled transmits 605 that the UE can maintain phase continuity across the set of uplink channels, as will be described in more detail with reference to Figure 7.

[0161] Figure 7 shows an example of a timeline 700 supporting functional signaling for uplink transmission according to an aspect of this disclosure. The timeline 700 may implement an aspect of one or more wireless devices, such as the UE 115 and the network entity 105, or be implemented by such wireless devices, which may be examples of corresponding devices described with reference to Figures 1 to 6.

[0162] As illustrated with reference to Figures 2-6, UE 115 may provide the network entity with bundling capability information indicating the 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 across a set of uplink channels (e.g., within or across time slots) for discontinuous bundled transmissions 710 if an intervening non-bundled transmission 715 is scheduled during a time gap 705 between continuous bundled transmissions 710. In such examples, 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 phase continuity can be maintained across a set of bundled physical uplink channels if the intervening non-bundled transmission 715 persists for a time period 720 or less. The time period 720 may be part of the time gap 705. The time period 720 may be defined as a time unit (e.g., in milliseconds), a number of symbols, a number of slots, etc. In some examples, UE115 may demonstrate that phase continuity can be maintained across a bundled set of physical uplink channels if a time period 725 follows an intervening non-bundled transmit 715. For example, UE115 may demonstrate that phase continuity can be maintained across a bundled set of physical uplink channels if an unscheduled gap having the shortest duration (e.g., in units of time, symbols, or slots) ends after each non-bundled transmit 715. The time period 725 may have a sufficient duration for UE115 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 with respect to the bundled transmit 710 before and after the time gap 705.

[0163] In some examples, UE115 may indicate that it can maintain phase continuity across a set of uplink channels when receiving downlink signaling (e.g., unbundled transmit 715) during a time gap 705, or when performing a measurement during a time gap 705, or both. In some examples, UE may indicate that it can maintain phase continuity across a set of physical uplink channels when receiving a reference signal during a time period 720, and can maintain phase continuity across a set of physical uplink channels when performing a reference signal measurement during a time period 725. In some examples, UE115 may indicate in the bundling functionality information that it supports downlink signaling during a time gap 705 if the downlink signaling is on the same carrier, or within the same band, or on a carrier that meets a threshold for moving away from the carrier on which the bundled transmit 710 is scheduled (e.g., less than a threshold number of MHz).

[0164] Figure 8 shows an example of a process flow 800 supporting functional signaling for uplink transmission according to an aspect of this disclosure. The process flow 800 may include a UE115-a and a network entity 105-a, which may be examples of corresponding devices described with reference to Figures 1 to 7. In the following description of the process flow 800, the operations between the network entity 105-a and the UE115-a may be transmitted in an order different from the illustrated exemplary order, or the operations performed by the network entity 105-a and the UE115-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 represent an operation in which UE115-a transmits a first control message reporting UE115-a's bundle transmit capability to maintain phase continuity over multiple physical uplink channels (for example, maintaining phase continuity over multiple transmits across multiple physical uplink channels), receives control signaling to schedule multiple physical uplink channels according to the bundle transmit capability, and transmits multiple physical uplink channels having phase continuity and multiple DMRS corresponding to the multiple physical uplink channels. This implementation may enable more efficient communication between UE115-a and network entity 105-a, thereby enabling successful maintenance of phase continuity, successful joint channel estimation, reduced system latency, and efficient resource utilization, among other benefits.

[0166] In some examples, at 805, network entity 105-a may transmit control signaling and UE 115-a may receive control signaling. The control signaling may include time slot format information (e.g., slot format indicator (SFI)). The time slot format information may indicate a specific 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, or frames.

[0167] In 810, UE115-a may send a first control message, and network entity 105-a may receive a first control message. The first control message may report UE115-a's bundle transmission capability, which maintains phase continuity over 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 continuous (e.g., within a time slot or across multiple time slots). In some examples, each of the multiple physical uplink channels may be discontinuous. In such examples, at least two continuous physical uplink channels (e.g., bundle transmissions) may be separated by a time period (e.g., a time gap 505). In some examples, the first control message may indicate UE115-a's capability to maintain phase continuity over multiple physical uplink channels according to indicated time slot format information. For example, time slot format information may indicate that all of the time slots are back-to-backup link time slots, or that it contains one or more downlink time slots such that one or more non-back-to-backup link time slots occur between consecutive uplink time slots.

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

[0169] Functional information may indicate that UE115-a can maintain phase continuity for physical uplink channels when they are scheduled within the same time slot. In some examples, functional information may indicate that UE115-a can maintain phase continuity for physical uplink channels scheduled across multiple time slots. In some examples, the multiple time slots may be temporally consecutive or may include at least one intervening time slot (e.g., a time gap).

[0170] In some examples, the feature information may indicate the frequency band, subcarrier interval, MCS, or any combination thereof associated with the reported feature. For example, the UE115-a may transmit feature information per band for one or more bands, per subcarrier interval for one or more subcarrier intervals, per MCS order for one or more MCSs (for example, QPSK may allow for less stringent requirements than other modulation orders), or in any combination thereof. Each bundle feature information message may include an indication of the band, subcarrier interval, MCS, or any combination thereof to which the contained feature information applies. In some examples, the UE115-a may report the UE115-a's bundling feature information whenever the TDD slot pattern is changed.

[0171] Functional 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 during which the UE can maintain phase continuity. Functional information may also indicate that the network entity 105-a can maintain phase continuity over a set of physical uplink channels if it refrains from scheduling uplink transmits, downlink transmits, or both for the UE 115-a during a time period.

[0172] Functional information may indicate that the UE115-a supports scheduling of one or more downlink transmissions, one or more reference signal measurement durations, or any combination thereof during a time period.

[0173] Functional information may indicate that UE115-a supports scheduling one or more uplink transmissions over a period of time. Functional information may indicate a set of parameter values ​​for transmitting each of the bundled transmissions. Network entity 105-a may include a set of parameter values ​​for transmitting each of the physical uplink channels and one or more uplink transmissions in the control signaling at 805. The parameter values ​​may include indications for bandwidth, transmit power, modulation order, number of layers, antenna port, transmit precoding matrix index, carrier, transmit chain switching configuration, or any combination thereof. That is, UE115-a may indicate in the functional information a set of parameter values ​​for transmitting bundled transmissions and an indication that UE115-a can maintain phase continuity over multiple physical uplink channels when network entity 105-a schedules any intervening non-bundled transmissions using the same parameters.

[0174] The functional information may indicate that UE115-a supports scheduling one or more intervening unbundled uplink transmissions for a first portion of a time period (e.g., a first threshold portion), for a second portion of a time period (e.g., a second threshold portion) including a transmit gap after an intervening scheduled transmission, or for any combination thereof. In some examples, the functional information may indicate the maximum duration for a time period between at least two consecutive physical uplink channels where phase continuity can be maintained. UE115-a may also indicate that it supports transmissions of physical uplink channels, all scheduled within the same frame.

[0175] Functional information may indicate that UE115-a can maintain phase continuity for physical uplink channels scheduled across multiple carriers. Functional information may also indicate that UE115-a can maintain phase continuity for physical uplink channels scheduled across a first carrier among multiple carriers between first transmit windows that are temporally aligned with a second transmit window of a second carrier among multiple carriers.

[0176] In some examples, the functional information may indicate that the UE115-a can maintain phase continuity for physical uplink channels scheduled across multiple transmit chains.

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

[0178] In 820, UE115-a may transmit multiple physical uplink channels having phase continuity in one or more time slots, and network entity 105-a may receive multiple physical uplink channels. UE115-a may also transmit multiple DMRS corresponding to multiple physical uplink channels in one or more time slots.

[0179] At 825, network entity 105-a may receive one or more DMRSs in one or more time slots and may make joint channel estimations for multiple physical uplink channels based on the received DMRSs. Network entity 105-a may use the joint channel estimations to demodulate the set of physical uplink channels received in one or more time slots at 820.

[0180] Figure 9 shows a block diagram 900 of an exemplary device 905 supporting functional signaling for uplink transmission according to an aspect of this disclosure. Device 905 may be an example of an embodiment of UE 115 as described herein. Device 905 may include a receiver 910, a transmitter 915, and a communications manager 920. Device 905 may also include a processor. Each of these components may communicate with one another (for example, via one or more buses).

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

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

[0183] The communication manager 920, receiver 910, transmitter 915, or various combinations thereof or various components thereof may be examples of means for performing various forms of functional signaling for uplink transmission as described herein. For example, the communication manager 920, receiver 910, transmitter 915, or various combinations thereof or components thereof may support a method for performing one or more of the functions 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 (for example, in a communications management circuit configuration). 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 that constitutes, or optionally supports, means for performing the functions described herein. In some examples, the processor and memory coupled to the processor may be configured to perform one or more of the functions described herein (for example, by the processor executing instructions stored in the memory).

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

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

[0187] The communication manager 920 may support wireless communication in the UE according to the examples described herein. For example, the communication manager 920 may be configured, or may optionally support, means for sending a first control message to a network entity reporting the UE's bundle transmission capability to maintain phase continuity over a set of multiple physical uplink channels. At least two of the multiple physical uplink channels that are consecutive are separated by a time period. Based on the first control message, the communication manager 920 may be configured, or may optionally support, means for receiving control signaling from the network entity to schedule the set of multiple physical uplink channels according to the reported capability. Based on the control signaling, the communication manager 920 may be configured, or may optionally support, means for transmitting 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 the communications manager 920 in accordance with the examples described herein, the device 905 (for example, a processor controlling the receiver 910, transmitter 915, communications manager 920, or a combination thereof, or optionally coupled thereto) may support techniques for signaling bundling functionality information, thereby enabling more efficient use of system resources, more efficient use of computing resources, reduced system latency, and an improved user experience.

[0189] Figure 10 shows a block diagram 1000 of an exemplary device 1005 supporting functional signaling for uplink transmission according to an aspect of this disclosure. Device 1005 may be an example of an aspect of device 905 or UE 115 described herein. Device 1005 may include a receiver 1010, a transmitter 1015, and a communications manager 1020. Device 1005 may also include a processor. Each of these components may communicate with one another (for example, via one or more buses).

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

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

[0192] Device 1005 or its various components may be examples of means for performing various forms of functional signaling for uplink transmission as described herein. For example, communication manager 1020 may include a bundling function manager 1025, a scheduling manager 1030, a physical uplink channel transmission manager 1035, or any combination thereof. Communication manager 1020 may be an example of a form of communication manager 920 as described herein. In some examples, communication manager 1020 or its various components may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or in other ways with receiver 1010, transmitter 1015, or both. For example, communication manager 1020 may receive information from receiver 1010, send information to transmitter 1015, or be integrated with receiver 1010, transmitter 1015, or both to receive information, transmit information, or perform various other operations as described herein.

[0193] The communication manager 1020 may support wireless communication in the UE according to the examples described herein. The bundling function manager 1025 may be configured, or may optionally support, means for sending a first control message to a network entity reporting the UE's bundle transmission function that maintains phase continuity over 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, or may optionally support, means for receiving control signaling from a network entity based on the first control message, which schedules the set of multiple physical uplink channels according to the reported function. The physical uplink channel transmission manager 1035 may, or may optionally support, means for transmitting 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, based on the control signaling.

[0194] Figure 11 shows a block diagram 1100 of an exemplary communications manager 1120 supporting functional signaling for uplink transmissions according to an aspect of this disclosure. Communications manager 1120 may be an example of an aspect of communications manager 920, communications manager 1020, or both, as described herein. Communications manager 1120 or various components thereof may be an example of means for performing various aspects of functional signaling for uplink transmissions as described herein. For example, communications manager 1120 may include a bundling function 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 communicate with one another directly or indirectly (for example, via one or more buses).

[0195] The communication manager 1120 may support wireless communication in the UE according to the examples described herein. The bundling function manager 1125 may be configured, or may optionally support, means for sending a first control message to a network entity reporting the UE's bundle transmission function that maintains phase continuity over 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 1130 may be configured, or may optionally support, means for receiving control signaling from a network entity based on the first control message, which schedules the set of multiple physical uplink channels according to the reported function. The physical uplink channel transmission manager 1135 may be configured, or may optionally support, means for transmitting 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, based on the control signaling.

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

[0197] In some examples, to support the transmission of a first control message, the phase continuity manager 1145 may be configured, or may support, means for transmitting a first control message indicating that the UE can maintain phase continuity for a set of multiple physical uplink channels when multiple physical uplink channels are scheduled within the same time slot.

[0198] In some examples, to support the transmission of a first control message, the phase continuity manager 1145 may be configured, or may support, means for transmitting a first control message indicating that the UE can maintain phase continuity for a set of multiple physical uplink channels scheduled over multiple time slots.

[0199] In some examples, at least a portion of a set of time slots are temporally continuous within those time slots.

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

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

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

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

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

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

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

[0207] In some examples, to support the transmission of a first control message, the bundling function manager 1125 may be configured, or may support, means for transmitting a first control message indicating that the UE supports scheduling 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.

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

[0209] In some examples, to support the transmission of a first control message, the bundling function manager 1125 may be configured, or may support, a means for sending a 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 the transmission of a first control message, the phase continuity manager 1145 may be configured, or may support, means for transmitting a first control message indicating that the UE can maintain phase continuity over a set of physical uplink channels scheduled across a set of carriers in carrier aggregation.

[0211] In some examples, to support the transmission of a first control message, the phase continuity manager 1145 may be configured, or may support, means for transmitting a first control message indicating that the UE can maintain phase continuity with respect to a set of multiple physical uplink channels scheduled across a set of multiple carriers between first transmit windows that are temporally aligned with a second transmit window of a second carrier in a set of multiple carriers.

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

[0213] In some examples, to support a set of multiple physical uplink channels, the physical uplink channel transmit manager 1135 may be configured, or may support, 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 a set of multiple physical uplink channels, the physical uplink channel transmission manager 1135 may be configured, or may support, means for multiple sets of repetitions of the same physical uplink channel, or for two or more different physical uplink channels scheduled by sets of multiple downlink control information messages, or for any combination thereof.

[0215] Figure 12 shows an exemplary system 1200 including a device 1205 that supports functional signaling for uplink transmission, according to an aspect of the present disclosure. Device 1205 may be an example of, or include, a component of, device 905, device 1005, or UE 115 as described herein. Device 1205 may communicate wirelessly with one or more network entities 105, UE 115, or any combination thereof. Device 1205 may include components for bidirectional 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, a code 1235, and a processor 1240. These components may communicate electronically or, in some cases, be coupled via one or more buses (e.g., bus 1245) (e.g., operably, communicatively, functionally, electronically, electrically).

[0216] The I / O controller 1210 may manage input and output signals for device 1205. The I / O controller 1210 may also manage peripherals not integrated into device 1205. In some cases, the I / O controller 1210 may represent physical connections or ports to external peripherals. 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, touchscreen, or similar device. In some cases, the I / O controller 1210 may be implemented as part of a processor, such as processor 1240. In some cases, the user may interact with the device 1205 via the I / O controller 1210 or via hardware components controlled by the I / O controller 1210.

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

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

[0219] The processor 1240 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, 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 memory (e.g., memory 1230) to cause device 1205 to perform various functions (e.g., functions or tasks supporting function signaling for uplink transmission). For example, device 1205 or components of device 1205 may include the processor 1240 and memory 1230 coupled to the processor 1240, and the processor 1240 and memory 1230 may be configured to perform various functions described herein.

[0220] The communication manager 1220 may support wireless communication in the UE according to the examples described herein. For example, the communication manager 1220 may be configured, or may support, means for sending a first control message to a network entity reporting the UE's bundle transmission capability to maintain phase continuity over a set of multiple physical uplink channels. At least two of the multiple physical uplink channels that are consecutive are separated by a time period. Based on the first control message, the communication manager 1220 may be configured, or may support, means for receiving control signaling from the network entity to schedule the set of multiple physical uplink channels according to the reported capability. Based on the control signaling, the communication manager 1220 may be configured, or may support, means for transmitting 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 the communications manager 1220 according to the examples described herein, the device 1205 may support techniques for signaling bundling functionality information, thereby enabling more efficient use of system resources, more efficient use of computing 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 in cooperation with the transceiver 1215, 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, memory 1230, code 1235, or any combination thereof. For example, code 1235 may include instructions executable by the processor 1240 to cause the device 1205 to perform various forms of functional signaling for uplink transmission as described herein, or the processor 1240 and memory 1230 may, in some cases, be configured to perform or support such operations.

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

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

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

[0226] The communication manager 1320, receiver 1310, transmitter 1315, or various combinations thereof or various components thereof may be examples of means for performing various forms of functional signaling for uplink transmission as described herein. For example, the communication manager 1320, receiver 1310, transmitter 1315, or various combinations thereof 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 (for example, in a communications management circuit configuration). The hardware may include a processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gates or transistor logic, discrete hardware components, or means for performing the functions described herein, or optionally any combination thereof supporting such means. In some examples, the processor and memory coupled to the processor may be configured to perform one or more of the functions described herein (for example, by the processor executing instructions stored in memory).

[0228] As an addition or alternative, in some examples, the communications manager 1320, receiver 1310, transmitter 1315, or various combinations or components thereof may be implemented in code executed by a processor (for example, as communications management software or firmware). When implemented in code executed by a processor, the communications manager 1320, receiver 1310, transmitter 1315, or various combinations or components thereof may be implemented by a general-purpose processor, DSP, CPU, ASIC, FPGA, or any combination thereof or other programmable logic device (for example, configured as a means for performing the functions described herein, or optionally supporting such means).

[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, send information to the transmitter 1315, or be integrated with the receiver 1310, the transmitter 1315, or both to receive information, transmit information, or perform various other operations as described herein.

[0230] The communication manager 1320 may support wireless communication in a network entity in accordance with the examples disclosed herein. For example, the communication manager 1320 may be configured, or may optionally support, means for receiving a first control message from the UE reporting the UE's bundle transmission capability to maintain phase continuity over a set of multiple physical uplink channels. At least two of the multiple physical uplink channels that are contiguous are separated by a time period. Based on the first control message, the communication manager 1320 may be configured, or may optionally support, means for transmitting a control signaling to the UE that schedules the set of multiple physical uplink channels according to the reported capability. Based on the control signaling, the communication manager 1320 may be configured, or may optionally support, means for receiving 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.

[0231] By including or configuring the communications manager 1320 in accordance with the examples described herein, the device 1305 (for example, a processor controlling the receiver 1310, transmitter 1315, communications manager 1320, or a combination thereof, or optionally coupled thereto) can support techniques for signaling bundling functionality information, thereby enabling more efficient use of system resources, more efficient use of computing resources, reduced system latency, and an improved user experience.

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

[0233] Receiver 1410 may provide means for receiving information such as packets related to various information channels (e.g., control channels, data channels, information channels for functional signaling for uplink transmission), user data, control information, or any combination thereof. The information may be passed to other components of device 1405. Receiver 1410 may utilize a single antenna or a set of multiple antennas.

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

[0235] Device 1405 or its various components may be examples of means for performing various forms of functional signaling for uplink transmission as described herein. For example, the communications manager 1420 may include a bundling function 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 a form of communications manager 1320 as described herein. In some examples, the communications manager 1420, or its various components may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using, or possibly in cooperation 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 and send information to the transmitter 1415, or to receive information, transmit information, or perform various other operations as described herein.

[0236] The communications manager 1420 may support wireless communications in a network entity in accordance with the examples disclosed herein. The bundling function manager 1425 may be configured, or may optionally support, means for receiving a first control message from the UE reporting the UE's bundling transmission function that maintains phase continuity over 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, or may optionally support, means for transmitting a control signaling to the UE that schedules the set of multiple physical uplink channels according to the reported function, based on the first control message. The physical uplink channel manager 1435 may be configured, or may optionally support, means for receiving 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, based on the control signaling.

[0237] Figure 15 shows a block diagram 1500 of an exemplary communications manager 1520 supporting functional signaling for uplink transmissions according to an aspect of this disclosure. Communications manager 1520 may be an example of an aspect of communications manager 1320, communications manager 1420, or both, as described herein. Communications manager 1520 or various components thereof may be an example of means for performing various aspects of functional signaling for uplink transmissions as described herein. For example, communications manager 1520 may include a bundling function 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 communicate with one another directly or indirectly (for example, via one or more buses).

[0238] The communications manager 1520 may support wireless communications in a network entity in accordance with the examples disclosed herein. The bundling function manager 1525 may be configured, or may optionally support, means for receiving a first control message from the UE reporting the UE's bundling transmit function that maintains phase continuity over a set of multiple physical uplink channels. At least two of the multiple physical uplink channels are contiguous and separated by a time period. The scheduling manager 1530 may be configured, or may optionally support, means for transmitting a control signaling to the UE that schedules the set of multiple physical uplink channels according to the reported function, based on the first control message. The physical uplink channel manager 1535 may be configured, or may optionally support, means for receiving 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, based on the control signaling.

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

[0240] In some examples, to support the reception of a first control message, the bundling function manager 1525 may be configured, or may support, means for receiving a first control message indicating that the UE can maintain phase continuity for a set of multiple physical uplink channels when multiple physical uplink channels are scheduled within the same time slot.

[0241] In some examples, to support the reception of a first control message, the bundling function manager 1525 may be configured, or may support, means for receiving a first control message indicating that the UE can maintain phase continuity over a set of multiple physical uplink channels scheduled across multiple time slots.

[0242] In some examples, at least a portion of a set of time slots are temporally continuous within those time slots.

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

[0244] In some examples, to support the reception of a first control message, the bundling function manager 1525 may be configured, or may support, 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 in which the UE can maintain phase continuity.

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

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

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

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

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

[0250] In some examples, to support the reception of a first control message, the scheduling manager 1530 may be configured, or may support, means for receiving a first control message indicating that the UE supports scheduling 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.

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

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

[0253] In some examples, to support the reception of a first control message, the bundling function manager 1525 may be configured, or may support, means for receiving a first control message indicating that the UE can maintain phase continuity with respect to a set of multiple physical uplink channels scheduled across a set of multiple carriers between first transmit windows that are temporally aligned with a second transmit window of a second carrier in a set of multiple carriers.

[0254] In some examples, to support the reception of a first control message, the bundling function manager 1525 may be configured, or may support, means for receiving a first control message indicating that the UE can maintain phase continuity over a set of multiple physical uplink channels scheduled across a set of multiple carriers, between first transmit windows that are temporally aligned to a second transmit window of a second carrier in a set of multiple carriers.

[0255] In some examples, to support the reception of a first control message, the bundling function manager 1525 may be configured, or may support, means for receiving a first control message indicating that the UE can maintain phase continuity over a set of multiple physical uplink channels scheduled across a set of multiple transmission chains.

[0256] In some examples, to support a set of multiple physical uplink channels, the physical uplink channel manager 1535 may be configured, or may support, 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 a set of multiple physical uplink channels, the physical uplink channel manager 1535 may be configured, or may support, means for receiving multiple sets of repetitions 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] Figure 16 shows an exemplary system 1600, including a device 1605 that supports functional signaling for uplink transmission, according to an aspect of the present disclosure. Device 1605 may be, or include, an example of a component of device 1305, device 1405, or network entity 105 as described herein. Device 1605 may communicate wirelessly with one or more network entities 105, UE 115, or any combination thereof. Device 1605 may include components for bidirectional 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, a code 1635, a processor 1640, and an inter-station communications manager 1645. These components may communicate electronically or, in some cases, be coupled via one or more buses (e.g., bus 1650) (e.g., operably, communicatively, functionally, electronically, electrically).

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

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

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

[0262] The processor 1640 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, 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 memory (e.g., memory 1630) to cause device 1605 to perform various functions (e.g., functions or tasks supporting function signaling for uplink transmission). For example, device 1605 or components of device 1605 may include the processor 1640 and memory 1630 coupled to the processor 1640, and the processor 1640 and memory 1630 may be configured to perform various functions described herein.

[0263] The inter-station communication manager 1645 may manage communication with other network entities 105 and may include a controller or scheduler for coordinating communication with the UE 115 in cooperation with the other network entities 105. For example, the inter-station communication 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 communication manager 1645 may provide an X2 interface within the LTE / LTE-A wireless communication network technology for communication between network entities 105.

[0264] The communication manager 1620 may support wireless communication in a network entity in accordance with the examples disclosed herein. For example, the communication manager 1620 may be configured, or may optionally support, means for receiving a first control message from the UE reporting the UE's bundle transmission capability to maintain phase continuity over a set of multiple physical uplink channels. At least two of the multiple physical uplink channels that are consecutive are separated by a time period. Based on the first control message, the communication manager 1620 may be configured, or may optionally support, means for transmitting a control signaling to the UE that schedules the set of multiple physical uplink channels according to the reported capability. Based on the control signaling, the communication manager 1620 may be configured, or may optionally support, means for receiving 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.

[0265] By including or configuring the communications manager 1620 according to the examples described herein, device 1605 may support techniques for signaling bundling functionality information, thereby enabling more efficient use of system resources, more efficient use of computing 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 possibly in cooperation with, the transceiver 1615, 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, memory 1630, code 1635, or any combination thereof. For example, code 1635 may include instructions executable by the processor 1640 to cause the device 1605 to perform various aspects of functional signaling for uplink transmission as described herein, or the processor 1640 and memory 1630 may be configured to perform or support such operations.

[0267] Figure 17 shows a flowchart of an exemplary method 1700 supporting functional signaling for uplink transmission according to an aspect of this disclosure. The operation of method 1700 may be performed by a UE or its components, as described herein. For example, the operation of method 1700 may be performed by a UE 115, as described with reference to Figures 1 to 12. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. In addition or alternatively, the UE may use dedicated hardware to perform aspects of the described functions.

[0268] The method may include sending a first control message to a network entity in 1705 reporting the UE's bundle transmission capability to maintain phase continuity over a set of multiple physical uplink channels. The operation of 1705 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1705 may be performed by a bundling capability manager 1125, as described with reference to Figure 11.

[0269] The method may include, in 1710, receiving a control signal from a network entity based on a first control message, which schedules a set of multiple physical uplink channels according to a bundle transmission function. The operation of 1710 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1710 may be performed by a scheduling manager 1130, as described with reference to Figure 11.

[0270] The method may include, in 1715, transmitting a set of multiple physical uplink channels having phase continuity, and a set of multiple demodulated reference signals corresponding to the set of multiple physical uplink channels, based on control signaling. The operation of 1715 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1715 may be performed by a physical uplink channel transmit manager 1135, as described with reference to Figure 11.

[0271] Figure 18 shows a flowchart of an exemplary method 1800 supporting functional signaling for uplink transmission according to an aspect of this disclosure. The operation of method 1800 may be performed by a UE or its components, as described herein. For example, the operation of method 1800 may be performed by a UE 115, as described with reference to Figures 1 to 12. In some examples, the UE may execute a set of instructions to control a functional element of the UE to perform the function described. In addition or alternatively, the UE may use dedicated hardware to perform aspects of the function described.

[0272] The method may include receiving instructions from a network entity to change the time slot format in 1805. The operation of 1805 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1805 may be performed by a time slot format manager 1140, as described with reference to Figure 11.

[0273] The method may include, at least in part, the 1810 sending a first control message to a network entity reporting the UE's bundled transmit capability for maintaining phase continuity over a set of multiple physical uplink channels, the first control message indicating the frequency band, subcarrier spacing, modulation and coding scheme, or any combination thereof, associated with the bundled transmit capability. The operation of the 1810 may be performed according to examples such as those disclosed herein. In some examples, the operation of the 1810 may be performed by a bundling capability manager 1125, as described with reference to Figure 11.

[0274] The method may include, in 1815, receiving a control signal from a network entity based on a first control message, which schedules a set of multiple physical uplink channels according to a bundle transmission function. The operation of 1815 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1815 may be performed by a scheduling manager 1130, as described with reference to Figure 11.

[0275] The method may include, in 1820, transmitting a set of multiple physical uplink channels having phase continuity, and a set of multiple demodulated reference signals corresponding to the set of multiple physical uplink channels, based on control signaling. The operation of 1820 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1820 may be performed by a physical uplink channel transmit manager 1135, as described with reference to Figure 11.

[0276] Figure 19 shows a flowchart of an exemplary method 1900 supporting functional signaling for uplink transmissions according to an aspect of this disclosure. The operation of method 1900 may be implemented by a network entity or its components, as described herein. For example, the operation of method 1900 may be performed by a network entity 105, as described with reference to Figures 1–8 and 13–16. In some examples, the network entity may execute a set of instructions to control the functional elements of the network entity to perform the functions described. In addition or alternatively, the network entity may use dedicated hardware to perform aspects of the functions described.

[0277] The method may include receiving a first control message from the UE reporting the UE's bundle transmission capability to maintain phase continuity over a set of physical uplink channels in 1905. The operation of 1905 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1905 may be performed by a bundling function manager 1525, as described with reference to Figure 15.

[0278] The method may include, in 1910, receiving control signaling that schedules a set of multiple physical uplink channels according to a bundle transmission function based on a first control message. The operation of 1910 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1910 may be performed by a scheduling manager 1530, as described with reference to Figure 15.

[0279] The method may include, in 1915, receiving 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, based on control signaling. The operation of 1915 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1915 may be performed by a physical uplink channel manager 1535, as described with reference to Figure 15.

[0280] FIG. 20 shows a flowchart of an example method 2000 supporting functional signaling for uplink transmission according to aspects of the present disclosure. Operations of method 2000 may be implemented by a network entity or a component thereof as described herein. For example, operations of method 2000 may be performed by network entity 105 as described with reference to FIGS. 1 through 8 and 13 through 16. In some examples, a network entity may execute a set of instructions to control the 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.

[0281] The method may include, at 2005, transmitting an indication of a time slot format change to a UE. Operations at 2005 may be performed according to examples as disclosed herein. In some examples, aspects of the operations at 2005 may be performed by a time slot format manager 1540 as described with reference to FIG. 15.

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

[0283] The method may include, in 2015, receiving a control signaling that schedules a set of multiple physical uplink channels according to a bundle transmission function based on a first control message. The operation of 2015 may be performed according to examples such as those disclosed herein. In some examples, the operation of 2015 may be performed by a scheduling manager 1520, as described with reference to Figure 15.

[0284] The method may include, in 2020, receiving a set of multiple physical uplink channels having phase continuity, and a set of multiple demodulated reference signals corresponding to the set of multiple physical uplink channels, based on control signaling. The operation of 2020 may be performed according to examples such as those disclosed herein. In some examples, the operation of 2020 may be performed by a physical uplink channel manager 1535, as described with reference to Figure 15.

[0285] The following provides an overview of the aspects of this disclosure.

[0286] Embodiment 1: A method for wireless communication in a UE, comprising the steps of: transmitting a first control message to a network entity reporting the UE's bundle transmit capability which maintains phase continuity over a plurality of physical uplink channels; receiving control signaling from the network entity which schedules the plurality of physical uplink channels according to the bundle transmit capability; and transmitting a plurality of phase-continuity physical uplink channels and a plurality of demodulated reference signals corresponding to the plurality of physical uplink channels, at least in part on the control signaling.

[0287] Embodiment 2: The method according to Embodiment 1, wherein at least two of the multiple physical uplink channels are separated by a time period.

[0288] Embodiment 3: The method according to Embodiment 2, wherein the time period is a duration shorter than the slot.

[0289] Embodiment 4: The method according to any one of Embodiments 1 to 3, wherein the time period is a duration equal to or greater than the number of slots.

[0290] Embodiment 5: The method according to any one of embodiments 1 to 4, wherein the step of transmitting a first control message includes transmitting a first control message indicating that the UE can maintain phase continuity for a plurality of physical uplink channels scheduled over a plurality of time slots.

[0291] Embodiment 6: The method according to Embodiment 5, wherein at least a portion of the multiple time slots are temporally continuous within the multiple time slots.

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

[0293] Embodiment 8: The method according to any one of embodiments 1 to 7, wherein the step of transmitting a first control message includes transmitting a first control message indicating whether the UE can maintain phase continuity for the multiple physical uplink channels when at least one of the multiple physical uplink channels includes one or more intervening unbundled transmits.

[0294] Embodiment 9: The method according to any one of Embodiments 1 to 8, wherein the step of sending a first control message includes the step of receiving a second control message from a network entity indicating a change in the time slot format, and the step of sending a first control message is at least in part based on receiving the second control message.

[0295] Embodiment 10: The method according to any one of embodiments 1 to 9, wherein the step of transmitting a first control message includes the step of transmitting a first control message indicating that the UE can maintain phase continuity for the multiple physical uplink channels when the multiple physical uplink channels are scheduled within the same time slot.

[0296] Embodiment 11: The method according to any one of embodiments 1 to 10, wherein the step of transmitting a first control message includes transmitting a first control message indicating that the UE can maintain phase continuity for a plurality of physical uplink channels scheduled over a plurality of time slots.

[0297] Embodiment 12: The method according to Embodiment 11, wherein the multiple time slots are temporally consecutive or include at least one intervening time slot.

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

[0299] Embodiment 14: The method according to any one of embodiments 1 to 13, wherein the step of transmitting a first control message includes transmitting a first control message indicating a threshold number of time slots for a time period between at least two consecutive physical uplink channels in which phase continuity can be maintained.

[0300] Embodiment 15: The method according to any one of embodiments 1 to 14, wherein the step of sending a first control message includes sending a first control message requesting a network entity to refrain from scheduling uplink transmissions or downlink transmissions or both for a period of time.

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

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

[0303] Aspect 18: The method according to Aspect 17, wherein the step of receiving control signaling comprises receiving control signaling that configures the 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 according to Aspect 18, wherein the same set of parameters comprises bandwidth, transmit power, modulation order, number of layers, antenna port, transmit precoding matrix indicator, carrier, transmit chain switching configuration, or any combination thereof.

[0305] Aspect 20: The method according to any one of Aspects 1 to 19, wherein the step of transmitting a first control message comprises transmitting a first control message indicating that a 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.

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

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

[0308] Embodiment 23: The method according to any one of embodiments 1 to 22, wherein the step of transmitting a first control message includes transmitting a first control message indicating that the UE can maintain phase continuity for a plurality of physical uplink channels scheduled across a plurality of carriers in carrier aggregation.

[0309] Embodiment 24: The method according to Embodiment 23, wherein the step of transmitting a first control message includes transmitting a first control message indicating that the UE can maintain phase continuity with respect to a plurality of physical uplink channels scheduled across a first carrier among a plurality of carriers between first transmission windows that are temporally aligned to a second transmission window of a second carrier among a plurality of carriers.

[0310] Embodiment 25: The method according to any one of embodiments 1 to 24, wherein the step of transmitting a first control message includes transmitting a first control message indicating that the UE can maintain phase continuity for a plurality of physical uplink channels scheduled across a plurality of transmission chains.

[0311] Embodiment 26: The method according to any one of Embodiments 1 to 25, wherein the plurality of physical uplink channels include a plurality of physical uplink sharing channels, a plurality of physical uplink control channels, or both.

[0312] Embodiment 27: The method according to any one of Embodiments 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] Embodiment 28: A method for wireless communication in a network entity, comprising the steps of: receiving a first control message from a UE reporting the UE's bundle transmit capability for maintaining phase continuity over a plurality of physical uplink channels; transmitting a control signaling to the UE, at least in part, based on the first control message, for scheduling the plurality of physical uplink channels according to the bundle transmit capability; and receiving a plurality of phase-continuity physical uplink channels and a plurality of demodulation reference signals corresponding to the plurality of physical uplink channels, at least in part, based on the control signaling.

[0314] Embodiment 29: The method according to Embodiment 28, wherein at least two of the multiple physical uplink channels are separated by a time period.

[0315] Embodiment 30: The method according to Embodiment 29, wherein the time period is a duration shorter than the slot.

[0316] Embodiment 31: The method according to any one of Embodiments 29 to 30, wherein the time period is a duration equal to or greater than the number of slots.

[0317] Embodiment 32: The method according to Embodiment 28, further comprising the step of sending a second control message to the UE indicating a change in the time slot format, wherein the step of receiving the first control message is at least in part based on sending the second control message.

[0318] Embodiment 33: The method according to any one of embodiments 28 to 32, wherein the step of receiving a first control message includes the step of receiving a first control message indicating that the UE can maintain phase continuity for the multiple physical uplink channels when the multiple physical uplink channels are scheduled within the same time slot.

[0319] Embodiment 34: The method according to any one of embodiments 28 to 33, wherein the step of receiving a first control message includes receiving a first control message indicating that the UE can maintain phase continuity for a plurality of physical uplink channels scheduled over a plurality of time slots.

[0320] Embodiment 35: The method according to Embodiment 34, wherein at least a portion of the multiple time slots are temporally continuous within the multiple time slots.

[0321] Embodiment 36: The method according to any one of embodiments 28 to 35, wherein the step of receiving a first control message includes receiving a first control message indicating a frequency band, subcarrier spacing, modulation and coding scheme, or any combination thereof, associated with a bundle transmission function.

[0322] Embodiment 37: The method according to any one of embodiments 28 to 36, wherein the step of receiving a 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 in which phase continuity can be maintained.

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

[0324] Embodiment 39: The method according to any one of embodiments 28 to 38, wherein the step of receiving a first control message includes receiving a first control message indicating that the UE supports scheduling 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] Embodiment 40: The method according to any one of embodiments 28 to 39, wherein the step of receiving a first control message includes the step of receiving a first control message indicating that the UE supports scheduling one or more uplink transmissions for a period of time.

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

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

[0328] Embodiment 43: The method according to any one of embodiments 28 to 42, wherein the step of receiving a first control message includes receiving a first control message indicating that the UE supports scheduling 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] Embodiment 44: The method according to any one of embodiments 28 to 43, wherein the step of receiving a 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 in which phase continuity can be maintained.

[0330] Embodiment 45: The method according to any one of embodiments 28 to 44, wherein the step of receiving a 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] Embodiment 46: The method according to any one of embodiments 28 to 45, wherein the step of receiving a first control message includes receiving a first control message indicating that the UE can maintain phase continuity for a plurality of physical uplink channels scheduled across a plurality of carriers in a carrier aggregation scenario.

[0332] Embodiment 47: The method of Embodiment 46, wherein the step of receiving a first control message includes receiving a first control message indicating that the UE can maintain phase continuity with respect to a plurality of physical uplink channels scheduled across a first carrier among a plurality of carriers between first transmission windows that are temporally aligned to a second transmission window of a second carrier among a plurality of carriers.

[0333] Embodiment 48: The method according to any one of embodiments 28 to 47, wherein the step of receiving a first control message includes receiving a first control message indicating that the UE can maintain phase continuity for a plurality of physical uplink channels scheduled across a plurality of transmission chains.

[0334] Embodiment 49: The method according to any one of Embodiments 28 to 48, wherein the plurality of physical uplink channels include a plurality of physical uplink sharing channels, a plurality of physical uplink control channels, or both.

[0335] Embodiment 50: The method according to any one of embodiments 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] Embodiment 51: A device for wireless communication in a UE, comprising a processor, a memory coupled to the processor, and instructions stored in the memory that can be executed by the processor to cause the device to perform any of the methods in Embodiments 1 to 27.

[0337] Embodiment 52: An apparatus for wireless communication in a UE, comprising at least one means for performing any of the methods of Embodiments 1 to 27.

[0338] Embodiment 53: A non-temporary computer-readable medium for storing code for wireless communication in a UE, wherein the code comprises instructions that can be executed by a processor to perform any of the methods of Embodiments 1 to 27.

[0339] Embodiment 54: A computer program comprising code for wireless communication, which, when executed by the processor of a UE, causes the processor to perform any of the methods described in Embodiments 1 through 27.

[0340] Embodiment 55: A device for wireless communication in a network entity, comprising a processor, memory coupled to the processor, and instructions stored in the memory that can be executed by the processor to cause the device to perform any of the methods in Embodiments 28 to 50.

[0341] Embodiment 56: An apparatus for wireless communication in a network entity, comprising at least one means for performing any of the methods of Embodiments 28 to 50.

[0342] Embodiment 57: A non-temporary computer-readable medium for storing code for wireless communication in a network entity, wherein the code includes instructions that can be executed by a processor to perform any of the methods of Embodiments 28 to 50.

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

[0344] It should be noted that the methods described herein describe possible implementations, that the operations and steps may be reconfigured or otherwise modified, and that other implementations are possible. Furthermore, two or more embodiments of these methods may be combined.

[0345] While embodiments of LTE, LTE-A, LTE-A Pro, or NR systems may be described as examples, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used extensively in the description, the techniques described herein are applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR. For example, the techniques described may be applicable to various other wireless communication systems such as Ultra-Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and wireless technologies not expressly mentioned herein.

[0346] The information and signals described herein may be represented using any of the wide variety of techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be mentioned throughout this description may be represented by voltage, electric current, electromagnetic waves, magnetic fields or magnetic particles, light fields or optical particles, or any combination thereof.

[0347] The various exemplary blocks and components described in this disclosure may be implemented or run using general-purpose processors, DSPs, ASICs, CPUs, FPGAs or other programmable logic devices, 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, a 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 working 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 accompanying claims. For example, due to the nature of the 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 so that parts of the functions are implemented in different physical locations.

[0349] Computer-readable media include both non-temporary computer storage media and communication media, including any media that facilitates the transfer of computer programs from one location to another. Non-temporary storage media may be any available media that can be accessed by a general-purpose or dedicated computer. Examples, but not limited to, non-temporary 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-temporary media that can be used to carry or store desired program code means in the form of instructions or data structures, and can be accessed by a general-purpose or dedicated computer or a general-purpose or dedicated processor. Any connection is also appropriately referred to as computer-readable media. For example, if 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, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable media. As used herein, disk and disc include CD, laserdisc, optical disc, digital versatile disc (DVD) disc, floppy disk, and Blu-ray® disc, where disk typically reproduces data magnetically and disc optically using a laser. Any combination of the above is also included in the scope of computer-readable media.

[0350] When used herein, including within the claims, “or” as used in an enumeration of items (for example, an enumeration of items beginning with a phrase such as “at least one of” or “one or more of”) indicates an inclusive enumeration, such as the enumeration “at least one of A, B, or C” meaning A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Furthermore, 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 this disclosure. In other words, the phrase “based on” as used herein should be construed in the same way as the phrase “at least partially based on.”

[0351] The term "decide" or "make a decision" encompasses a wide variety of actions, and therefore "making a decision" can include calculating, calculating, processing, deriving, investigating, looking up (for example, by looking up in a table, database, or another data structure), confirming, etc. It can also include receiving (for example, receiving information), accessing (for example, accessing data in memory), etc. Furthermore, "making a decision" can include resolving, selecting, choosing, establishing, and other similar actions.

[0352] In the attached diagrams, 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 similar components. When only the first reference label is used herein, the description is applicable to any similar component having the same first reference label, regardless of the second reference label or any other subsequent reference labels.

[0353] The descriptions provided herein with respect to the accompanying drawings describe exemplary configurations and do not necessarily represent all examples that may be implemented or that fall within the claims. The term “exemplary” as used herein means “acting as an example, case, or illustration,” and does not mean “preferred” or “advantageous over other examples.” Detailed descriptions include specific details to facilitate understanding of the described techniques. However, these techniques may be practiced without these specific details. In some cases, 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 those skilled in the art to create or use this disclosure. Various modifications of this disclosure will become 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 this disclosure. Accordingly, this disclosure should be given the broadest scope that is consistent with the principles and novel features disclosed herein, and is not limited to the examples and designs described herein. [Explanation of symbols]

[0355] 100 Wireless Communication Systems 105 Network Entities 115 UE 120 Backhaul Communication Link 125 Communication Link 130 Core Network 135 Communication Links 140 Access Network Entities 145 Access Network Transmitting Entities 150 IP services 160 Central Unit (CU) 165 Distributed Units (DU) 170 Wireless Units (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 Timelines 505-a, 505-b, 505-c time gap 510 Bundle Sending 515 Unbundled transmission 600 Timelines 605-a, 605-b bundle transmission 610-a, 610-b unbundled transmission 615 First transmission chain 620 Second transmission chain 700 Timeline 705 Time Gap 710 Bundle Sending 715 Unbundled transmission 720-hour period 725-hour period 800 Process Flows 900 Block Diagram 905 Device 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 Transmitter 1100 Block Diagram 1120 Communications Manager 1125 Bundling Function Manager 1130 Scheduling Manager 1135 Physical Uplink Channel Transmitter Manager 1140 Time Slot Format Manager 1145 Phase 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 Function 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 Time Slot 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 communications manager 1650 Bus 1700 methods 1800 methods 1900 method 2000 methods

Claims

1. A method for wireless communication in user equipment (UE), A step of sending a first control message to a network entity reporting the bundle transmission capability of the UE in maintaining phase continuity over multiple physical uplink channels, wherein the first control message indicates the maximum duration for a time period between at least two consecutive physical uplink channels in which the UE can maintain phase continuity; The steps include receiving control signaling from the network entity to schedule the plurality of physical uplink channels in accordance with the bundle transmission function, A method comprising the steps of transmitting, at least in part, the plurality of physical uplink channels having phase continuity, and a plurality of demodulated reference signals corresponding to the plurality of physical uplink channels, based on the control signaling.

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

3. The method according to claim 2, wherein the time period is a duration shorter than the slot.

4. The method according to claim 2, wherein the aforementioned time period is a duration equal to or greater than the number of slots.

5. The method according to claim 1, further comprising the step of receiving a second control message from the network entity indicating a change in the time slot format, wherein the step of sending the first control message is at least in part based on receiving the second control message.

6. The aforementioned multiple physical uplink channels are The method according to claim 1, comprising a plurality of physical uplink sharing channels, a plurality of physical uplink control channels, or both.

7. The aforementioned multiple physical uplink channels are The method according to 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. A method for wireless communication in a network entity, A step of receiving a first control message from a user equipment (UE) reporting the bundled transmission capability of the UE in maintaining phase continuity over multiple physical uplink channels, wherein the first control message indicates the maximum duration for a time period between at least two consecutive physical uplink channels in which the UE can maintain phase continuity; The steps include sending a control signaling to the UE that schedules the plurality of physical uplink channels according to the bundle transmission function, based at least in part on the first control message, A method comprising the steps of receiving, at least in part, the plurality of physical uplink channels having phase continuity, and a plurality of demodulated reference signals corresponding to the plurality of physical uplink channels, based on the control signaling.

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

10. The method according to claim 9, wherein the time period is a duration shorter than the slot.

11. The method according to claim 9, wherein the aforementioned time period is a duration equal to or greater than the number of slots.

12. The aforementioned multiple physical uplink channels are The method according to 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. A device for wireless communication in user equipment (UE), Transceiver and, Processor and The memory coupled to the aforementioned processor, A device comprising instructions stored in the memory and executable by the processor to cause the device to perform the method according to any one of claims 1 to 7.

14. A device for wireless communication in a network entity, Transceiver and, Processor and The memory coupled to the aforementioned processor, A device comprising instructions stored in the memory and executable by the processor to cause the device to perform the method described in any one of claims 8 to 12.

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