Power control and direction for wireless communications - Patents.com

Abstract

This document generally relates to wireless communications involving transmission power. Some embodiments include at least one communication node that determines a downlink or uplink transmission power based on at least one power control parameter, each of a plurality of power control parameters corresponding to a respective one of a plurality of resource types, and communicates (transmits and / or receives) a downlink or uplink signal or channel according to the transmission power. Additionally or alternatively, the wireless access node generates a downlink control information (DCI) or a medium access control (MAC) control element (CE) to indicate the downlink transmission power, and transmits the DCI or MAC CE to a user device, which receives the DCI or MAC CE to determine the downlink transmission power.

Description

[Technical field]

[0001] This document relates generally to wireless communications with power control and power direction. [Background technology]

[0002] In a time division duplex (TDD) system, a slot may be used only for downlink transmission or only for uplink transmission at a time. Correspondingly, a downlink slot may be used only for downlink transmission, and an uplink slot may be used only for uplink transmission. In contrast, when full-duplex communication is used, a slot may be used for both downlink and uplink transmission. In general, downlink and uplink transmissions may be assigned different frequency resources. A method of improving power control for good performance in such systems may be desirable. Summary of the Invention [Means for solving the problem]

[0003] This document relates to methods, systems, apparatus, and devices for wireless communication. In some implementations, a method for wireless communication includes determining, by a wireless access node, a downlink transmission power based on at least one downlink power control parameter of a plurality of downlink power control parameters, each of the plurality of downlink power control parameters corresponding to a respective one of a plurality of resource types, and transmitting, by the wireless access node, a downlink signal or a downlink channel to a user device according to the downlink transmission power.

[0004] In some other implementations, a method for wireless communication includes determining, by a user device, a downlink transmission power based on at least one downlink power control parameter of a plurality of downlink power control parameters, each of the plurality of downlink power control parameters corresponding to a respective one of a plurality of resource types; receiving, by the user device, a downlink signal or a downlink channel from the radio access node, the downlink signal or the downlink channel being transmitted in accordance with a downlink transmit power.

[0005] In some other implementations, a method for wireless communication includes generating, by a radio access node, a downlink control information (DCI) or a medium access control (MAC) control element (CE) to indicate a plurality of downlink transmit powers for transmission of a downlink signal or a downlink channel, each of the plurality of downlink transmit powers corresponding to a respective one of a plurality of time units in which the downlink signal or the downlink channel is to be transmitted, and transmitting, by the radio access node, the DCI or MAC CE to a user device.

[0006] In some other implementations, a method for wireless communication includes receiving, by a user device, a downlink control information (DCI) or a medium access control (MAC) control element (CE), and determining, by the user device, from the DCI or MAC CE, a plurality of downlink transmit powers for transmission of a downlink signal or a downlink channel, each of the plurality of downlink transmit powers corresponding to a respective one of a plurality of time units over which the downlink signal or the downlink channel is transmitted.

[0007] In some other implementations, a method for wireless communication includes determining, by a user device, an uplink transmission power based on at least one uplink power control parameter of a plurality of uplink power control parameters, each of the plurality of uplink power control parameters corresponding to a respective one of a plurality of resource types, and transmitting, by the user device, an uplink signal or uplink channel to a radio access node in accordance with the uplink transmission power.

[0008] In some other implementations, a method for wireless communication includes determining, by a radio access node, an uplink transmission power based on at least one uplink power control parameter of a plurality of uplink power control parameters, each of the plurality of uplink power control parameters corresponding to a respective one of a plurality of resource types, and receiving, by the radio access node, an uplink signal or uplink channel from a user device, the uplink signal or uplink channel being transmitted in accordance with the uplink transmission power.

[0009] In some other implementations, a device, such as a network device, is disclosed. The device may include one or more processors and one or more memories, the one or more processors configured to read computer code from the one or more memories to perform any of the methods described above.

[0010] In yet some other implementations, a computer program product is disclosed. The computer program product may include a non-transitory computer-readable program medium having computer code stored thereon, the computer code causing one or more processors to perform any of the methods described above when executed by the one or more processors.

[0011] These and other aspects and their implementations are described in more detail in the drawings, description, and claims. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 illustrates a block diagram of an example wireless communication system.

[0013] [Diagram 2] FIG. 2 shows a diagram of an example slot format.

[0014] [Diagram 3] FIG. 3 shows an example diagram of a resource configuration showing different resource types.

[0015] [Figure 4A] FIG. 4A illustrates a flowchart of an example of a method for wireless communication with downlink transmit power.

[0016] [Figure 4B] FIG. 4B illustrates a flowchart of a second example of a method for wireless communication with downlink transmit power.

[0017] [Figure 5A] FIG. 5A illustrates a flowchart of a third example of a method for wireless communication with downlink transmit power.

[0018] [Figure 5B] FIG. 5B illustrates a flowchart of a fourth example of a method for wireless communication with downlink transmit power.

[0019] [Figure 6] FIG. 6 shows a diagram of an example of DL signal transmit power indication in multiple slots.

[0020] [Figure 7] FIG. 7 shows another example diagram of DL signal transmit power indication in multiple slots.

[0021] [Figure 8A] FIG. 8A illustrates a flowchart of an example of a method for wireless communication with uplink transmit power.

[0022] [Figure 8B] FIG. 8B illustrates a flowchart of another example of a method for wireless communication with uplink transmit power.

[0023] [Figure 9] FIG. 9 illustrates a flow chart of an example of a method for wireless communication with measurements on a reference signal. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] This specification describes various embodiments of systems, apparatus, devices, and methods for wireless communication that include determining a transmit power.

[0025] 1 illustrates a diagram of an exemplary wireless communication system 100 including multiple communication nodes (or simply nodes) configured to wirelessly communicate with one another. In general, a communication node includes at least one user device 102 and at least one wireless access node 104. The exemplary wireless communication system 100 of FIG. 1 is shown as including two user devices 102, including a first user device 102(1) and a second user device 102(2), and one wireless access node 104. However, various other examples of wireless communication systems 100 including any of various combinations of one or more user devices 102 and / or one or more wireless access nodes 104 may be possible.

[0026] In general, a user device as described herein, such as user device 102, may include a single electronic device or apparatus or multiple electronic devices or apparatuses (e.g., a network of electronic devices or apparatuses) that can communicate wirelessly over a network. A user device may include or be otherwise referred to as a user terminal, user terminal device, or user equipment (UE). Additionally, a user device may be or include, but is not limited to, a mobile device (such as a mobile phone, a smartphone, a smart watch, a tablet, a laptop computer, a vehicle or other vessel (such as, by way of non-limiting example, a human, motor, or engine-powered vehicle or other vessel, such as an automobile, an airplane, a train, a boat, or a bicycle) or a fixed or stationary device (such as, by way of non-limiting example, a desktop computer or other computing device that is not typically moved for long periods of time, such as an appliance, other relatively heavy device including the Internet of Things (IoT), or a computing device used in a commercial or industrial environment). In various embodiments, the user device 102 may include a transceiver circuit 106 coupled to an antenna 108 for wireless communication with the wireless access node 104. The transceiver circuitry 106 may also be coupled to a processor 110, which may be coupled to a memory 112 or other storage device. The memory 112 may store instructions or code that, when read and executed by the processor 110, cause the processor 110 to implement various of the methods described herein.

[0027] Additionally, in general, a radio access node as described herein, such as the radio access node 104, may include a single electronic device or apparatus, or multiple electronic devices or apparatus (e.g., a network of electronic devices or apparatus), and may include one or more base stations or other wireless network access points that can wirelessly communicate with one or more user devices and / or one or more other radio access nodes 104 over a network. For example, the radio access node 104 may comprise a 4G LTE base station, a 5G NR base station, a 5G central unit base station, a 5G distributed unit base station, a next generation node B (gNB), an enhanced node B (eNB), or other similar or next generation (e.g., 6G) base station, in various embodiments. The radio access node 104 may include a transceiver circuit 114 coupled to an antenna 116, which may include an antenna tower 118 in various manners, for conducting wireless communications with a user device 102 or another radio access node 104. The transceiver circuit 114 may also be coupled to one or more processors 120, which may be coupled to a memory 122 or other storage device. The memory 122 may store instructions or code that, when read and executed by the processor 120, causes the processor 120 to implement one or more of the methods described herein.

[0028] In various embodiments, two communication nodes in the wireless system 100 (such as a user device 102 and a radio access node 104, two user devices 102 without a radio access node 104, or two radio access nodes 104 without a user device 102) may be configured to wirelessly communicate with each other within or across a mobile network and / or radio access network in accordance with one or more standards and / or specifications. In general, the standards and / or specifications may define rules or procedures under which the communication nodes may wirelessly communicate, which in various embodiments may include those for communicating in millimeter (mm) wave bands and / or with multi-antenna schemes and beamforming capabilities. Additionally or alternatively, the standards and / or specifications may be those that define radio access technologies and / or cellular technologies, such as, by way of non-limiting example, Fourth Generation (4G) Long Term Evolution (LTE), Fifth Generation (5G) New Radio (NR), or New Radio Unlicensed (NR-U).

[0029] Furthermore, in the wireless system 100, the communication nodes are configured to wirelessly communicate signals with each other. In general, communication in the wireless system 100 between two communication nodes can be or include transmission or reception, and generally both occur simultaneously, depending on the perspective of the particular node in the communication. For example, for a given communication between a first node and a second node, where the first node is transmitting a signal to the second node and the second node is receiving a signal from the first node, the first node can be referred to as a source or transmitting node or device, the second node can be referred to as a destination or receiving node or device, and the communication can be considered as a transmission for the first node and a reception for the second node. Of course, since communication nodes in the wireless system 100 can both transmit and receive signals, a single communication node can be both a transmitting / source node and a receiving / destination node at the same time, or can switch between a source / source node and a destination / receiving node.

[0030] A particular signal can be characterized or defined as either an uplink (UL) signal, a downlink (DL) signal, or a sidelink (SL) signal. An uplink signal is a signal transmitted from a user device 102 to a radio access node 104. A downlink signal is a signal transmitted from a radio access node 104 to a user device 102. A sidelink signal is a signal transmitted from one user device 102 to another user device 102 or from one radio access node 104 to another radio access node 104. Furthermore, with respect to sidelink transmission, a first / source user device 102 transmits a sidelink signal directly to a second / destination user device 102 without forwarding the sidelink signal to the radio access node 104.

[0031] Additionally, signals communicated between communication nodes in system 100 may be characterized (or defined) as data signals or control signals. In general, data signals are signals that contain or carry data, such as multimedia data (e.g., voice and / or image data), and control signals are signals that carry control information that configure communication nodes in a particular way to communicate with each other, or that control how communication nodes communicate data signals with each other. Particular signals may be defined or characterized by a combination of data / control and uplink / downlink / sidelink, including uplink control signals, uplink data signals, downlink control signals, downlink data signals, sidelink control signals, and sidelink data signals.

[0032] In at least some specifications, such as 5G NR, data and control signals are transmitted and / or carried on physical channels. Generally, a physical channel corresponds to a set of time-frequency resources used for the transmission of signals. Different types of physical channels may be used to transmit different types of signals. For example, a physical data channel (or simply data channel) is used to transmit data signals, and a physical control channel (or simply control channel) is used to transmit control signals. Examples of types of physical data channels include, but are not limited to, a physical downlink shared channel (PDSCH) used to communicate downlink data signals, a physical uplink shared channel (PUSCH) used to communicate uplink data signals, and a physical sidelink shared channel (PSSCH) used to communicate sidelink data signals. Furthermore, examples of types of physical control channels include, but are not limited to, a physical downlink control channel (PDCCH) used to communicate downlink control signals, a physical uplink control channel (PUCCH) used to communicate uplink control signals, and a physical sidelink control channel (PSCCH) used to communicate sidelink control signals. As used herein for simplicity, unless otherwise specified, a particular type of physical channel is also used to refer to a signal transmitted on that particular type of physical channel and / or a transmission on that particular type of transmission. By way of example, a PDSCH refers to the physical downlink shared channel itself, a downlink data signal transmitted on the PDSCH, or a downlink data transmission. Thus, a communication node transmitting or receiving a PDSCH means that the communication node is transmitting or receiving a signal on the PDSCH.

[0033] Furthermore, for at least some specifications, such as 5G NR, and / or for at least some types of control signals, control signals transmitted by communication nodes may include control information including information necessary to enable transmission of one or more data signals between communication nodes and / or to schedule one or more data channels (or one or more transmissions on a data channel). For example, such control information may include information necessary for proper reception, decoding, and demodulation of data signals received on a physical data channel during a data transmission, and / or information necessary for an uplink scheduling grant that informs a user device about resources and transport formats to be used for an uplink data transmission. In some embodiments, the control information includes downlink control information (DCI) transmitted in a downlink direction from the radio access node 104 to the user device 102. In other embodiments, the control information includes uplink control information (UCI) transmitted in an uplink direction from the user device 102 to the radio access node 104, or sidelink control information (SCI) transmitted in a sidelink direction from one user device 102(1) to another user device 102(2).

[0034] Additionally, in the wireless communication system 100, the slot format for multiple slots or frames may be configured by the wireless access node 104 or may be defined by a protocol. In a particular example, a slot may be denoted (or defined) as a downlink slot, a flexible slot, or an uplink slot. In various embodiments, an Orthogonal Frequency Division Multiplexing (OFDM) symbol may also be denoted (or defined) as a downlink symbol, a flexible symbol, or an uplink symbol.

[0035] FIG. 2 is a diagram of an example of a slot format. In FIG. 2, five slots are shown, for example, Slot 0, Slot 1, Slot 2, Slot 3, and Slot 4. The symbols in Slot 0 and the first nine symbols in Slot 1 are configured as downlink symbols. Thus, the downlink (DL) bandwidth portion (BWP) includes these symbols / slots. The last five symbols in Slot 1, the symbols in Slot 2, and the first eight symbols in Slot 3 are configured as flexible symbols (i.e., these symbols are used as uplink or downlink transmission symbols). Furthermore, the last six symbols in Slot 3 and the symbols in Slot 4 are configured as uplink symbols. Thus, the uplink (UP) BWP includes these symbols / slots.

[0036] Further, in the wireless communication system 100, the radio access node 104 may configure a downlink (DL) bandwidth portion (BWP) to include frequency resources for downlink transmissions and / or may configure an uplink (UL) BWP to include frequency resources for uplink transmissions for the user device 102. In various embodiments, the radio access node 104 may also configure or determine a slot as a downlink slot, an uplink slot, or a flexible slot. Similarly, the radio access node 104 may set or determine a symbol as a downlink symbol, an uplink symbol, or a flexible symbol.

[0037] In some embodiments, in a downlink slot or symbol, or in a flexible slot or symbol, a first frequency bandwidth (or frequency resource) may be configured for uplink transmission for the user device 102. In various of these embodiments, the first frequency bandwidth may be fully or partially inside or fully or partially outside the DL BWP. In such embodiments, in a downlink slot or symbol, or in a flexible slot or symbol, a first portion of the frequency resource may be used for downlink transmission and a second portion of the frequency resource may be used for uplink transmission.

[0038] As described herein, resources, including time domain and frequency domain resources, used for transmission may be characterized (or determined or defined) as having a resource type. That is, a given resource, including a given time domain resource or a given frequency domain resource, may have a corresponding one of a plurality of resource types. In various embodiments of these embodiments, resources used for downlink transmission may be referred to as downlink resources and may have a corresponding downlink resource type of a plurality of different downlink resource types, and / or resources used for uplink transmission may be referred to as uplink resources and may have a corresponding uplink resource type of a plurality of different uplink resource types.

[0039] Furthermore, as used herein, a time unit (e.g., a slot or a symbol) has a first downlink resource type if it is configured as a downlink time unit and all frequency resources in a bandwidth portion for (within or corresponding to) that time unit are used for downlink transmission. Furthermore, a frequency resource (e.g., a bandwidth) has a first downlink resource type if it is used for downlink transmission and for (within or corresponding to) a time unit having the first downlink resource type.

[0040] Additionally, a time unit has the second downlink resource type if it is configured as a downlink time unit and a bandwidth portion for (at or corresponding to) that time unit has a first portion used for downlink transmission and a second portion used for uplink transmission. A frequency resource (e.g., bandwidth) has the second downlink resource type if it is used for downlink transmission and for (within or corresponding to) a time unit having the second downlink resource type.

[0041] Additionally, a time unit has a third downlink resource type if it is configured as an uplink time resource and a bandwidth portion for that time resource (within or corresponding to that time resource) has a first portion used for uplink transmission and a second portion used for downlink transmission. A frequency resource (e.g., bandwidth) has a third downlink resource type if it is used for downlink transmission and for a time unit (within or corresponding to that time unit) having the third downlink resource type.

[0042] Similarly, in an uplink slot or symbol, or a flexible slot or symbol, a second frequency bandwidth (or frequency resource) may be configured for downlink transmission. In various of these embodiments, the second frequency bandwidth may be fully or partially within the UL BWP, or may be fully or partially outside the UL BWP. In such embodiments, in an uplink slot or symbol, or a flexible slot or symbol, a first portion of the frequency resource may be used for downlink transmission and a second portion of the frequency resource may be used for uplink transmission.

[0043] As used herein, a time unit (e.g., slot, symbol, frame, subframe, or subslot) has a first uplink resource type if it is configured as an uplink time unit and all frequency resources in (in or corresponding to) the bandwidth portion for that time unit are used for uplink transmission. A frequency resource (e.g., bandwidth) has a first uplink resource type if it is used for uplink transmission and for (within or corresponding to) the time unit has the first uplink resource type.

[0044] Additionally, a time unit has a second uplink resource type if it is configured as an uplink time unit and a bandwidth portion for (at or corresponding to) that time unit has a first portion used for uplink transmission and a second portion used for downlink transmission. A frequency resource (e.g., bandwidth) has a second uplink resource type if it is used for uplink transmission and for (within or corresponding to) a time unit having the second uplink resource type.

[0045] Also, a time unit has a third uplink resource type if it is configured as a downlink time resource and a bandwidth portion for (within or corresponding to) that time resource has a first portion used for downlink transmission and a second portion used for uplink transmission. A frequency resource (e.g., bandwidth) has a third uplink resource type if it is used for uplink transmission and for (within or corresponding to) that time unit has a third uplink resource type.

[0046] 3 shows a diagram of an example resource configuration illustrating different resource types. As shown in FIG. 3, the example configuration includes 10 slots, designated by Slots 0 through 9. Each of the first four slots (Slot 0 through Slot 3) is configured as a DL slot; each of Slots 4 and 5 is configured as a flexible slot; and each of the last four slots (Slot 6 through Slot 9) is configured as a UL slot.

[0047] Furthermore, in the resource configuration example of Figure 3, all of the frequency resources of the BWP in Slot 0 are used for downlink transmission. That is, the BWP for Slot 0 has no frequency resources (bandwidth) used for uplink transmission. Therefore, Slot 0 has the first downlink resource type. Any frequency resources (bandwidth) for (within or corresponding to) Slot 0 also have the first downlink resource type.

[0048] Furthermore, UL frequency resources (bandwidth) are configured for UL transmission in each of Slot 1, Slot 2, and Slot 3. Thus, each of Slot 1, Slot 2, and Slot 3 has a second downlink resource type (from the perspective of DL transmission) and a third uplink resource type (from the perspective of UL transmission), since each is configured as a downlink time slot and each of their corresponding BWPs has a first portion used for downlink transmission and a second portion used for uplink transmission. Furthermore, in each of Slot 1, Slot 2, and Slot 3, the frequency resources used for downlink transmission have the second downlink resource type since they are in a time slot having the second downlink resource type, and the frequency resources used for uplink transmission have the third uplink resource type since they are in a time slot having the third uplink resource type.

[0049] Furthermore, DL frequency resources (bandwidth) are configured for DL ​​transmission in each of Slot 6 and Slot 7. Thus, each of Slot 6 and Slot 7 has a third downlink resource type (from the perspective of DL transmission) and a second uplink resource type (from the perspective of UL transmission), since each is configured as an uplink time slot and each of their corresponding BWPs has a first portion used for downlink transmission and a second portion used for uplink transmission. Furthermore, the frequency resources used for uplink transmission have the second uplink resource type since they are in a time slot with the second uplink resource type, and the frequency resources used for downlink transmission have the third downlink resource type since they are in a time slot with the third downlink resource type.

[0050] Furthermore, each of Slot 8 and Slot 9 does not have a DL frequency bandwidth configured for DL ​​transmission, i.e., all of the frequency resources of Slot 8 and Slot 9 are used for UL transmission. Thus, each of Slot 8 and Slot 9 has a first uplink resource type, and correspondingly, the frequency resources of Slot 8 and Slot 9 have the first uplink resource type.

[0051] Although not shown in Figure 3, in other embodiments, there may be frequency gaps between downlink and uplink frequency resources in a given slot, and such frequency gaps may not be used for DL ​​or UL transmissions.

[0052] Further, in some embodiments, for transmission of a signal or channel, the transmission power may be indicated by an absolute power indication or a relative power indication. For an absolute power indication, the radio access node 104 may directly indicate the transmission power of the signal. For example, the radio access node 104 may configure the transmission power of the signal to be a power value, such as 12 decibel milliwatts (dBm). For a relative power indication, a power offset relative to the transmission power of the second signal is indicated for the first signal. For such a relative power indication, a communication node, such as the user device 102, may determine the transmission power of the first signal based on the power offset and the transmission power of the second signal. To illustrate, assume that the radio access node 104 configures a power offset of the second signal (e.g., a channel state information reference signal (CSI-RS)) to be 3 dB relative to the transmission power of the first signal, such as a synchronization signal / physical broadcast channel block (SSB). The user device 102 may then determine that the transmit power of the second signal (e.g., CSI-RS) is 15 dBm (i.e., 12 dBm+3 dB).

[0053] Additionally or alternatively, the transmission power may be indicated by an implicit indication. For such an embodiment, the transmission power may be determined (or calculated) based on one or more other parameters, such as the bandwidth, bandwidth portion (BWP), or allocated resources of the signal, as non-limiting examples. The radio access node 104 may set one or more parameters or parameter values, each of the one or more parameters corresponding to a respective one or more transmission power values. Additionally or alternatively, a communication node, such as the user device 102, may be configured to determine or derive a transmission power value based on the determined one or more parameter values. For example, the communication node may determine a transmission power of a signal having a second transmission bandwidth based on the configured transmission power and the second transmission bandwidth. For example, to illustrate, the radio access node 104 may configure the transmission power to be P watts (W) or P dBm. Further assume that the first transmission bandwidth is N physical resource blocks (PRBs) or N resource elements (REs) and the second transmission bandwidth of the signal is M PRBs or M REs. The communication node may then determine a transmission power of the signal based on the configured transmission power P, the first transmission bandwidth N, and the second transmission bandwidth M. For example, the communication node may determine or calculate the transmission power according to or using an algorithm or formula. An exemplary formula is P*(N / M)W or P+10*log 10 It may include (N / M) dBm.

[0054] In addition, in various embodiments using implicit indications, one or more of the parameters used to indicate the transmission power may depend on the resource type associated with the one or more parameters. For example, the second transmission bandwidth in the above example may depend on the uplink or downlink resource type of the time unit and / or frequency resource. In particular, the second transmission bandwidth may be within a configured frequency resource or within a slot or symbol having a particular one of the resource types.

[0055] As an illustrative example with reference to FIG. 3, assume that the radio access node 104 configures the bandwidth for the first DL resource type, the second DL resource type, and the third DL resource type to be 100 PRB, 50 PRB, and 25 PRB, respectively. In addition, assume that the radio access node 104 configures the transmission power corresponding to the first DL resource type to be 15 dBm. Further, assume that the radio access node 104 transmits CSI-RS in Slot 0. The user device 102 may determine that Slot 0 has the first DL resource type and determine that the transmission bandwidth for the transmission of CSI-RS in Slot 0 is 100 PRB. Then, the user device 102 may determine that the transmission power for the transmission of CSI-RS in Slot 0 is 15 dBm. Additionally or alternatively, assume that the radio access node 104 transmits CSI-RS in downlink Slot 1, Slot 2, or Slot 3. The user device 102 may determine that slot 1, 2, or 3 has a second DL resource type, and then determine that the transmission bandwidth for transmission of CSI-RS in slot 1, 2, or 3 is 50 PRB. The user device 102 may then determine the transmission power for transmitting CSI-RS in slot 1, 2, or 3 based on the transmission power for the first DL resource type, the bandwidth for the first DL resource type, and the bandwidth for the second DL resource type. Furthermore, the user device 102 may determine the transmission power according to an algorithm or formula as described above. For example, the user device 102 may determine the transmission power for transmission of CSI-RS in slot 1, 2, or 3 to be 18 dBm (15+10*1og10(100 / 50) dBm). Additionally or alternatively, assume that the radio access node 104 transmits CSI-RS in uplink Slot 6 or Slot 7. The user device 102 may then determine that slot 6 or 7 has a third DL resource type and determine that the transmission bandwidth for transmission of the CSI-RS in slot 6 or 7 is 25 PRB.The user device may then determine a transmit power for transmitting a CSI-RS in Slot 6 or Slot 7 based on the transmit power for the first DL resource type, the bandwidth for the first DL resource type, and the bandwidth for the third DL resource type. Further, the user device 102 may determine the transmit power according to an algorithm or formula as described above. For example, the user device 102 may determine the transmit power for transmission of a CSI-RS in Slot 6 or 7 to be 21 dBm (15+10*log10(100 / 25) dBm).

[0056] Additionally or alternatively, the radio access node 104 may configure or indicate the second transmission bandwidth via DCI, medium access control (MAC) control element (CE), or radio resource control (RRC) signaling. For example, the DCI indicates that the bandwidth of the CSI-RS transmitted in Slot 4 is 75 PRB. The user device 102 then determines the bandwidth of 75 PRBs indicated by the DCI, and then determines the transmission power for the transmission in Slot 4 based on the transmission power for the first DL resource type, the bandwidth for the first DL resource type, and the bandwidth indicated by the DCI. Furthermore, the user device 102 may determine the transmission power according to an algorithm or formula as described above. For example, the user device 102 may determine the transmission power for the transmission in Slot 4 to be 16.2 dBm (15+10*log10(100 / 75) dBm).

[0057] FIG. 4A illustrates a flowchart of an example method 400 for wireless communication with downlink transmission power. In block 402A, the radio access node 104 may determine a downlink transmission power based on at least one downlink power control parameter of a plurality of downlink power control parameters. Each of the plurality of downlink power control parameters may correspond to a respective one of a plurality of resource types. In any of the various embodiments, each of the plurality of resource types may include a DL resource type or a UL resource type, such as a first, second, or third DL resource type, or a first, second, or third UL resource type, as previously described. In block 404A, the radio access node 104 may transmit a downlink signal or a downlink channel to the user device 102 according to the downlink transmission power determined in block 402A. In various embodiments, the downlink signal may include a synchronization signal / physical broadcast channel block (SSB), a channel state information reference signal (CSI-RS), a remote interference management reference signal (RIM-RS), or a positioning reference signal (PRS). Additionally or alternatively, the physical channel may include a PDSCH, a physical broadcast channel (PBCH), or a PDCCH.

[0058] FIG. 4B illustrates a flowchart of an example method 400B for wireless communication with downlink transmission power. In block 402B, the user device 102 may determine a downlink transmission power based on at least one downlink power control parameter of a plurality of downlink power control parameters. Each of the plurality of downlink power control parameters may correspond to a respective one of a plurality of resource types. In any of the various embodiments, each of the plurality of resource types may include a DL resource type or a UL resource type, such as a first, second, or third DL resource type, or a first, second, or third UL resource type, as previously described. In block 404B, the user device 102 may receive a downlink signal or a downlink channel from the wireless communication node 104 according to the downlink transmission power determined in block 402B. In various embodiments, the downlink signal may include a synchronization signal / physical broadcast channel block (SSB), a channel state information reference signal (CSI-RS), a remote interference management reference signal (RIM-RS), or a positioning reference signal (PRS). Additionally or alternatively, the physical channel may include a PDSCH, a physical broadcast channel (PBCH), or a PDCCH.

[0059] Other embodiments are possible that include combinations of two or more of the blocks from methods 400A and 400B.

[0060] More specifically, for at least some embodiments, including some corresponding to FIG. 4A and / or FIG. 4B, the radio access node 104 may configure multiple power control parameters for transmission of a downlink channel or signal. One of the multiple power control parameters may indicate a transmission power to be used for transmission of a DL signal or channel. In particular, one of the multiple power control parameters may correspond to a particular resource type that a resource on which the DL signal or channel is transmitted has. For example, a first power control parameter may indicate a transmission power of a downlink signal or channel transmitted on a resource having a first downlink resource type, a second power control parameter may indicate a transmission power of a downlink signal or channel transmitted on a resource having a second DL resource type, and a third power control parameter may indicate a transmission power of a downlink signal or channel transmitted on a third DL resource (or a third DL slot / symbol). Additionally, in various embodiments, the first power control parameter may indicate a transmission power of a downlink signal or channel, regardless of whether the downlink signal or channel is transmitted on resources having a first downlink resource type or on resources having a second downlink resource type, if the downlink signal or channel is a group-common signal, such as an SSB, a PDSCH carrying paging information or system information, a PDCCH carrying group-common information, or a PDCCH scheduling paging information or system information. Additionally, in any of the various embodiments, each of the multiple power control parameters may be configured via an absolute power indication, a relative power indication, and / or an implicit indication, as previously described.

[0061] In accordance with the above, at least one communication node (such as the radio access node 104 and / or the user device 102 to which the radio access node 104 is to transmit a downlink signal) may determine to communicate a downlink signal. The at least one communication node may determine a resource on which to transmit the downlink signal, a resource type from a plurality of resource types for the resource, and a power control parameter from a plurality of power control parameters corresponding to the determined resource type. The at least one communication node may then determine a downlink transmission power corresponding to the determined power control parameter.

[0062] As an example for absolute power indication, assume that three power control parameters are configured for a downlink signal, such as an SSB. A first power control parameter may indicate that if the SSB is transmitted on a resource having a first DL resource type (e.g., Slot 0 in FIG. 3), the SSB transmit power is 10 dBm. A second power control parameter may indicate that if the SSB is transmitted on a resource having a second DL resource type (e.g., Slot 1, Slot 2, or Slot 3 in FIG. 3), the SSB transmit power is 15 dBm. A third power control parameter may indicate that if the SSB is transmitted on a resource having a third DL resource type (e.g., Slot 6 or Slot 7 in FIG. 3), the SSB transmit power is 8 dBm. Correspondingly, upon determining the DL resource type for a given resource, the radio access node 104 and / or user device 102 may determine a downlink transmit power for transmitting a downlink signal on the given resource. For example, if the radio access node 104 and / or user device 102 determines to communicate a downlink signal in Slot 0, the radio access node 104 and / or user device 102 may determine that Slot 0 has a first DL resource type and then determine that the downlink transmit power for transmitting in Slot 0 is 10 dBm.

[0063] Additionally or alternatively, with respect to the relative power indication, a power offset may be indicated by a power control parameter, where the power offset indicates a power change relative to a transmission power indicated by another power control parameter. For example, a first power control parameter may indicate that the CSI-RS transmission power is 12 dBm if the CSI-RS is transmitted in a slot having a first DL resource type (e.g., Slot 0). In addition, a second power control parameter may indicate a power offset value of 3 dB. The second power control parameter may also indicate that the power offset value is for a transmission power of the CSI-RS transmitted on a resource having the first DL resource type. Thus, for example, assume that the CSI-RS is transmitted in a slot having a second DL resource type (e.g., Slot 1, 2, or 3). At least one communication node, including the radio access node 104 and / or the user device 102, may determine a downlink transmission power for transmission of a downlink signal or channel in a slot having the second DL resource type based on the first power control parameter and the second power control parameter. For example, the at least one communication node may determine that the downlink transmit power is 15 dBm (12 dBm+3 dB).

[0064] Additionally or alternatively, with respect to the implicit power indication, the second power control parameter may indicate a transmission bandwidth for transmission of a DL signal or channel on the second DL resource. At least one communication node, e.g., user device 104 and / or user device 102, may determine a transmission power of a DL signal or channel transmitted on a resource having a second DL resource type based on at least the indicated transmission bandwidth and the transmission power indicated by another power control parameter.

[0065] Additionally or alternatively, in some embodiments, the power control parameter may include a ratio of PDSCH EPRE to PDSCH demodulation reference signal (DMRS) energy per resource element (EPRE). In various of these embodiments, the radio access node 104 may configure a plurality of ratios for the user device 102. A first ratio of the plurality of ratios may be used for PDSCH transmitted on resources having a first DL resource type, a second ratio of the plurality of ratios may be used for PDSCH transmitted on resources having a second DL resource type, and a third ratio of the plurality of ratios may be used for PDSCH transmitted on resources having a third DL resource type.

[0066] Additionally or alternatively, in some embodiments, one of the power control parameters may indicate a transmission power of a DL signal channel or signal transmitted on multiple resources having multiple resource types, for example, a second power control parameter may indicate a downlink transmission power for transmission of a downlink signal or channel transmitted on a second resource having a second DL resource type and a third resource having a third DL resource type.

[0067] FIG. 5A illustrates a flowchart of an example method 500A for wireless communication with downlink transmit power. In block 502A, the radio access node 104 may determine a plurality of downlink transmit powers for transmission of a downlink signal or downlink channel to indicate in a downlink control information (DCI) or a medium access control (MAC) control element (CE), and / or the radio access node 104 may generate a DCI or MAC CE to indicate the plurality of downlink transmit powers. Each of the plurality of transmit powers corresponds to a respective one of a plurality of time units in which the downlink signal or channel is transmitted. Each time unit of the plurality of time units may be a symbol (e.g., an orthogonal frequency division multiplexing (OFDM) symbol), a subslot, a slot, a subframe, or a system frame. Additionally or alternatively, the DCI may have a DCI format, and the DCI format may be a DCI format in a common search space or a UE-specific search space.

[0068] At block 504A, the radio access node 104 may transmit a DCI or MAC CE to the user device 102 that is to receive the downlink signal or channel. For at least some embodiments, at block 504A, the radio access node 104 may also transmit a downlink signal or channel to the user device 102 after or simultaneously with transmitting the DCI or MAC CE to the user device 102. The DCI or MAC CE may indicate multiple downlink transmit powers that the radio access node 104 determines at block 502A and / or multiple downlink transmit powers that it indicates in the DCI or MAC CE. In this manner, through the transmission of the DCI or MAC CE, the user device 102 may know or determine multiple downlink transmit powers for time units to properly or successfully receive the downlink signal or channel from the radio access node 104.

[0069] 5B illustrates a flowchart of an example method 500B for wireless communication with downlink transmit power. At block 502B, the user device 102 may receive a DCI or MAC CE from the radio access node 104. At block 504B, the user device 102 may determine a plurality of downlink transmit powers indicated by the DCI or MAC CE. Each of the plurality of transmit powers may correspond to a respective one of a plurality of time units in which the downlink signal is transmitted by the radio access node 104. Thus, for at least some embodiments, upon determining the plurality of downlink transmit powers, the user device 102 may perform appropriate operations to properly receive the downlink signal from the radio access node 104 over the plurality of time units. For example, the user device 102 may demodulate the downlink signal, calculate a path loss associated with the downlink signal, and / or scale a measurement result of a measurement of the downlink signal according to the downlink transmit power. Further, for at least some embodiments, in block 504B, the user device 102 may receive a downlink signal from the radio access node 104, the downlink signal being transmitted by the radio access node 104 in accordance with a downlink transmit power indicated in the DCI or MAC CE.

[0070] More specifically, in various embodiments, including those corresponding to FIG. 5A and / or FIG. 5B, the radio access node 104 may configure a DCI format for the user device 102. Furthermore, the radio access node 104 may transmit a DCI having the configured DCI format to the user device 102. Additionally or alternatively, the radio access node 104 may transmit a medium access control (MAC) control element (CE) to the user device 102. The DCI or MAC CE may indicate a transmission power for transmission of the downlink signal in the multiple time units based on the DCI format of the DCI or MAC CE. Furthermore, in various embodiments, the radio access node 104 may configure multiple transmission power candidates for the DL signal. The DCI or MAC CE may further indicate a transmission power of the DL signal from the multiple transmission power candidates for the multiple time units. For at least some of these embodiments, one of the multiple transmission power candidates may be indicated as a default transmission power. If the DL signal transmission power in the time unit is not indicated by the DCI or MAC CE, the transmission power of the DL signal is the default transmission power.

[0071] Additionally or alternatively, the DCI or MAC CE may include multiple information blocks. For at least some of these embodiments, each information block may have the same length, i.e., number of information bits. Each of the multiple information blocks may correspond to a respective one of the multiple time units and may indicate the transmission power of the DL signal for the corresponding time unit. For example, a first information block may indicate the transmission power of the DL signal in a first time unit of the multiple time units, a second information block may indicate the transmission power of the DL signal in a second time unit of the multiple time units, and so on.

[0072] For at least some embodiments, the time interval (or time offset) between a first time unit of the multiple time units and the DCI, MAC CE, or PUCCH corresponding to the MAC CE may be configured by the network in terms of symbols, subslots, slots, subframes, or frames. The duration of the time unit may be configured by the radio access node 104.

[0073] FIG. 6 is a diagram illustrating an example DL signal transmission power indication for multiple slots. Corresponding to FIG. 6, the radio access node 104 may set four transmission power candidates, including 10 dBm, 13 dBm, 16 dBm, and 18 dBm, for downlink signal (e.g., CSI-RS) resources. The radio access node 104 may further configure a default transmission power of 13 dBm. The radio access node 104 may also configure the time unit of the transmission power indication to be a slot. In the example of FIG. 6, the radio access node 104 may configure a DCI to indicate a transmission power value of a downlink signal resource in four time units (e.g., four slots). Correspondingly, the DCI may include four information blocks, each of which indicates a transmission power of a CSI-RS resource in a corresponding slot of the four slots.

[0074] 6, the DCI may have an associated length and each information block may also have an associated length. For example, the length of the DCI may be 8 bits and each information block includes 2 bits. Additionally or alternatively, the radio access node 104 may configure a time offset between the DCI and the first or initial slot of the plurality of slots. For example, the DCI of FIG. 6 may indicate a time offset of 3 slots between the DCI and the first slot. Furthermore, in various embodiments, the DCI indicates a time offset. As shown in FIG. 6, the DCI is transmitted in Slot 1 and the first slot of the plurality of slots indicated by the DCI is Slot 4. Furthermore, the DCI indicates the transmission power of the downlink signal in Slot 4, Slot 5, Slot 6, and Slot 7. Correspondingly, the first information block indicates the transmission power of the downlink signal in Slot 4, the second information block indicates the transmission power of the downlink signal in Slot 5, the third information block indicates the transmission power of the downlink signal in Slot 6, and the fourth (last) information block indicates the transmission power of the downlink signal in Slot 7. Furthermore, each information block may include a bit value, such as a two-bit value, indicating the transmission power value of the corresponding slot. For example, a bit value "00" may indicate a transmission power of 10 dBm, a bit value "01" may indicate a transmission power of 13 dBm, a bit value "10" may indicate a transmission power of 16 dBm, and a bit value "11" may indicate a transmission power of 18 dBm.

[0075] Additionally or alternatively, in some embodiments, the time units or durations of the time units are also indicated by the DCI or MAC CE. In addition to the information blocks, the DCI or MAC CE may include a second portion indicating at least one of the start of the time units and the duration of the time units. The start of the time units or the duration of the time units is indicated from a number of candidate values ​​configured by the radio access node 104 or specified by the protocol.

[0076] Still referring to FIG. 6, the DCI may include an additional portion including two fields. The first field may indicate the start of the plurality of slots in terms of a time offset between the DCI and the first slot of the plurality of slots. The candidate values ​​configured by the radio access node 104 may include 1, 2, 3, 4, 5, 6, 7, and 8 slots. Additionally or alternatively, the first field includes a bit value indicating a time offset. For example, a 3-bit value "010" may indicate a time offset value of 3 between the DCI and the first slot of the plurality of slots. Then, the first slot of the plurality of slots indicated by the DCI is Slot 4.

[0077] Further, for at least some embodiments, the second of the two fields may indicate a duration of the time unit. For example, the possible values ​​configured by the radio access node 104 may include 1, 2, 3, and 4 slots. Additionally or alternatively, the second field may include a value, such as a bit value, indicating the duration of the time unit. For example, a two-bit value "00" may indicate that the duration of the time unit for transmission of the downlink signal is 1 slot.

[0078] Additionally or alternatively, in various embodiments, each information block of the DCI or MAC CE information blocks may indicate not only a particular time unit, but also the transmit power of the DL signal in the particular time unit. A given information block may indicate at least the start of a particular time unit and the duration of the particular time unit, which may be indicated from a number of possible values ​​configured by the radio access node 104 or specified by a protocol.

[0079] 7 is a diagram illustrating another example of a DL signal transmission power indication. Referring to FIG. 7, in various embodiments, the radio access node 104 may configure the DCI to include multiple information blocks (e.g., four information blocks as shown in FIG. 7). Each information block may include three fields. A first field and a second field of the three fields may indicate a particular time unit. The first field may indicate a start of the particular time unit, and the second field may indicate a duration of the particular time unit.

[0080] In more detail, the first field may include a bit value, such as a 3-bit value, to indicate the start of a particular time unit. The second field may include a bit value, such as a 2-bit value, to indicate the duration of a particular time unit. Furthermore, the third field may include a bit value, such as a 2-bit value, to indicate the transmission power of the DL signal in the indicated time unit. By way of example, assume that the first information block includes a first field with a bit value "010" indicating that the start of the particular time unit is Slot 4, a second field with a bit value "00" indicating that the duration of the time unit is 1 slot, and a third field with a bit value "10" indicating that the transmission power of the downlink signal in Slot 4 is 16 dBm. As another exemplary illustration, assume that the second information block includes a first field having a bit value "011" indicating that the start of a particular time unit is Slot 5, a second field having a bit value "00" indicating that the duration of the time unit is 1 slot, and a third field having a bit value "10" indicating that the transmission power of the downlink signal in Slot 5 is 16 dBm. As a third example, the third information block may include a first field having a bit value "101" indicating that the start of a particular time unit is Slot 7, a second field having a bit value "01" indicating that the duration of the time unit is 2 slots, and a third field having a bit value "00" indicating that the transmission power of the downlink signal in Slots 7 and 8 is 10 dBm. As a fourth example, the fourth information block includes a first field having a bit value "111" indicating that the start of a particular time unit is Slot 9, a second field having a bit value "00" indicating that the duration of the time unit is one slot, and a third field having a bit value "11" indicating that the transmission power of the downlink signal in Slot 9 is 18 dBm. Furthermore, for some embodiments of the example of FIG. 7, the DCI does not indicate the transmission power of the downlink signal in Slot 6. Then, the transmission power of the CSI-RS in Slot 6 is a default value, for example, 13 dBm.

[0081] Furthermore, for at least some embodiments, the start of a particular time unit is indicated with respect to a time offset between this particular time unit and a previous particular time unit (if any). For example, a second information block in the DCI or MAC CE may have a bit value (e.g., a 3-bit value) indicating a time offset between the time unit indicated by the second information block and the time unit indicated by the first information block. For example, a 3-bit value "000" may indicate a time offset of 1. Correspondingly, the start of the particular time unit indicated by the second information block is slot 5. Additionally or alternatively, information blocks other than the first information block may not include the first field. For such embodiments, the start of the time unit indicated by the information block is the next to the previous time unit indicated by the previous information block.

[0082] Further, in some embodiments, the DCI or DCI format of the MAC CE may indicate a DL transmission bandwidth for a signal transmitted in the indicated time unit, or a resource type for the indicated time unit. At least one communication node, such as the wireless access node 104 and / or the user device 102, may determine one or more downlink transmission powers based on the DL transmission bandwidth and / or resource type for the indicated time unit.

[0083] 8A is a flow chart of an example method 800 of wireless communication with uplink transmit power. In block 802A, a user device determines an uplink transmit power based on at least one uplink power control parameter of a plurality of uplink power control parameters. Furthermore, each of the plurality of uplink power control parameters corresponds to a respective one of a plurality of resource types. For at least some embodiments, the plurality of uplink power control parameters may also include at least one of a received power target, a maximum output power, a cell-specific power component, a UE-specific power component, a coefficient of path loss, a path loss reference signal, a loop index, a power control adjustment, a plurality of transmit power command values, or a function of a number of bits per resource element (BPRE). In block 804A, the user device may transmit an uplink signal or an uplink channel to the radio access node 104 according to the uplink transmit power.

[0084] 8B is a flow chart of an example method 800B of wireless communication with uplink transmit power. At block 802B, the radio access node 104 determines an uplink transmit power based on at least one uplink power control parameter of a plurality of uplink power control parameters. Furthermore, each of the plurality of uplink power control parameters corresponds to a respective one of a plurality of resource types. In at least some embodiments, the plurality of uplink power control parameters may also include at least one of a received power target, a maximum output power, a cell-specific power component, a UE-specific power component, a coefficient of path loss, a path loss reference signal, a loop index, a power control adjustment, a plurality of transmit power command values, or a function of a number of bits per resource element (BPRE). At block 804B, the radio access node 104 may receive an uplink signal or an uplink channel from the user device 102 according to the uplink transmit power.

[0085] Other embodiments are possible, including combinations of two or more of the blocks from methods 800A and 800B.

[0086] More specifically, for some embodiments, including some corresponding to Figures 8A and / or 8B, the radio access node 104 may configure a number of power control parameters for transmission of an uplink signal or channel by the user device 102. Exemplary uplink signals may include a Sounding Reference Signal (SRS). Exemplary uplink channels may include a PUCCH, a PUSCH, or a Physical Random Access Channel (PRACH).

[0087] Additionally, in various embodiments, one of the power control parameters may be used to determine a transmission power of a UL signal or channel transmitted on a resource having a UL resource type, such as a first UL resource type, a second UL resource type, or a third UL resource type, as previously described. Correspondingly, for at least some embodiments, the first power control parameter may be used to determine a transmission power of a UL signal or channel transmitted on a resource having a first UL resource type, the second power control parameter may be used to determine a transmission power of a UL signal or channel transmitted on a resource having a second UL resource type, and the third power control parameter may be used to determine a transmission power of a UL signal or channel transmitted on a resource having a third UL resource type. Additionally, in at least some embodiments, a user device 102 transmitting an uplink signal or channel on a resource may determine the UL resource type of the resource and then determine an uplink transmit power for the uplink transmission.

[0088] For example, using the diagram of FIG. 3, the radio access node 104 may configure at least one first power control parameter to include a UE-specific power component value Z1 and a loop index value I1. The values ​​Z1 and I1 may be used to determine a transmit power of a UL signal transmitted on resources having a first type of UL resource type, such as Slot 8 or Slot 9. In addition, the radio access node 104 may configure at least one second power control parameter to include a UE-specific power component value Z2 and a loop index value I2. The values ​​Z2 and I2 may be used to determine a transmit power of a UL signal transmitted on resources having a second UL resource type, such as Slot 6 or Slot 7. In addition, the radio access node 104 may configure at least one third power control parameter to include a UE-specific power component value Z3 and a loop index value I3. The values ​​Z3 and I3 may be used to determine a transmit power of a UL signal transmitted on resources having a third UL resource type, such as Slot 1, Slot 2, or Slot 3.

[0089] Furthermore, at least one communication node, such as the radio access node 104 and / or the user device 102, may use one of a plurality of power control parameters to determine a transmit power of an UL signal or channel transmitted on a plurality of resources having a plurality of UL resource types. For example, the first power control parameter may include a plurality of transmit power command values ​​used to determine a transmit power of an UL signal transmitted on a first resource having a first UL resource type, a second resource having a second UL resource type, and a third resource having a third UL resource type. The DCI may further indicate a transmit power command value from the plurality of transmit power command values ​​for an UL signal or channel transmitted on a first resource having a first UL resource type, a second resource having a second UL resource type, and a third resource having a third UL resource type.

[0090] Further, some embodiments may utilize a cumulative power control mechanism to determine the transmit power of a UL signal or channel transmitted on resources having a particular UL resource type and a previous signal transmitted on resources having the same UL resource type. For example, the user device 102 may transmit a first UL signal in Slot 1 having a third UL resource type. The previous signal used to determine the transmit power of the first UL signal is the most recent signal before the first UL signal transmitted in Slot 1, Slot 2, or Slot 3.

[0091] Further, the user device 102 may transmit a UL signal or channel over the first UL resource and the second UL resource. The user device 102 may determine a transmission power of the UL signal corresponding to the at least one first power control parameter that is different from the transmission power of the UL signal corresponding to the at least one second power control parameter. In various embodiments, the user device 102 may determine a difference between the transmission powers or may simply determine that a difference exists and, correspondingly, based on the difference and / or based on the determination that a difference exists, may determine to transmit the UL signal or channel according to a greater or lesser transmission power. In other embodiments, if the user device 102 determines a non-zero difference, the user device 102 may determine not to transmit the UL signal or channel.

[0092] Furthermore, in some embodiments, for two UL signals or channels (e.g., a first UL signal or channel and a second UL signal or channel) transmitted in the same or consecutive time units, if a difference in transmission power between the first UL signal or channel and the second signal or channel is equal to or greater than a threshold, the user device 102 may not transmit one of the two UL signals or channels. In various embodiments, the threshold may be configured by the radio access node 104 or may be specified by a wireless communication protocol.

[0093] Additionally, for demodulation reference signal (DMRS) bundling, the wireless access node 104 and / or user device 102 may determine or consider resource type boundaries as events that break power consistency and phase continuity. For example, the start boundary of Slot 6 or Slot 8 may be considered as an event that breaks power consistency and phase continuity.

[0094] FIG. 9 illustrates a flowchart 900 of an example method for wireless communication with measurements of a reference signal. In block 902, the user device 102 may receive a reference signal (e.g., CSI-RS) transmitted on multiple resources (e.g., multiple time units) having one or more resource types. In block 904, the user device 102 may measure the reference signal on the multiple resources to determine multiple measurement results. In block 906, the user device 102 may scale at least one of the measurement results to determine multiple scaled measurement results and filter (e.g., by averaging) the multiple measurement results including the scaled measurement results and the unscaled measurement results. Alternatively, in block 906, the user device 102 may filter (e.g., by averaging) measurement results corresponding to resources having the same resource type.

[0095] More specifically, in some embodiments, including some embodiments for method 900, the radio access node 104 may configure multiple reference signals for the user device 102 to perform measurements. The reference signals may be transmitted on multiple resource opportunities. In response, the user device 102 may measure the reference signals at the multiple resource opportunities. Additionally, the user device 102 may filter (or average) measurement results of the measurements of the multiple resource opportunities. If the reference signals at the two resource opportunities have different transmit powers, the user device 102 may scale at least one of the measurement results according to a transmit power offset.

[0096] 3, assume that the radio access node 104 transmits a reference signal (e.g., CSI-RS) in Slot 0 and Slot 5. Further, assume that the transmit power in Slot 0 is P1W or P1dBm, and the transmit power in Slot 5 is P2W or P2dBm. The user device 102 may measure the CSI-RS in Slot 1 and determine a first measurement result as S1, and measure the CSI-RS in Slot 5 and determine a second measurement result as S2.

[0097] Further, the user device 102 may perform scaling on the first measurement result S1 and / or the second measurement result S2 according to an algorithm, formula, or the like. For example, after scaling, the user device 102 may scale the scaled first measurement result of the CSI-RS in Slot 0 as S1*(P2 / P1) or S1+10*log 10 (P2 / P1). The user device 102 may then filter (by averaging) the scaled first measurement result and the second measurement result. Alternatively, the user device may determine that the scaled second measurement result of the CSI-RS in Slot 5 is S2*(P1 / P2) or S2+10*log10(P1 / P2). The user device 102 may then filter (by averaging) the scaled second measurement result and the first measurement result.

[0098] In some embodiments, the radio access node 104 may also configure a set of CSI-RS resources. Additionally, the radio access node 104 may configure multiple CSI reports corresponding to the set of CSI-RS resources. The radio access node 104 may configure the CSI reports to be associated with resource types. For example, a first CSI report is associated with a first DL resource type, a second CSI report is associated with a second DL resource type, and a third CSI report is associated with a third DL resource type.

[0099] With respect to CSI reporting, the user device 102 may determine, obtain, or calculate CSI based on measurements of CSI-RS transmitted on resources having one or more corresponding resource types. That is, the user device 102 may determine the CSI of a first CSI report based on measurements of CSI-RS transmitted on a first resource having a first DL resource type (e.g., Slot 0 in FIG. 3) and / or may determine the CSI of a second CSI report based on measurements of CSI-RS transmitted on a second resource having a second DL resource type (e.g., Slots 1, 2, or 3 in FIG. 3).

[0100] Additionally or alternatively, the user device 102 may filter together (e.g., by averaging) measurements for CSI-RS transmitted on resources having the same resource type. That is, the user device 102 may filter measurements for CSI-RS transmitted on resources having a first DL resource type (e.g., Slot 0), may filter measurements for CSI-RS transmitted on resources each having a second DL resource type (e.g., Slot 1, Slot 2, and / or Slot 3), and may filter measurements for CSI-RS transmitted on resources each having a third DL resource type (e.g., Slot 6 or Slot 7).

[0101] In various embodiments, for CSI reporting, the radio access node 104 may also configure multiple subbands, within which the user device 102 may report CSI only for subbands within a corresponding DL resource type. For at least some of these embodiments, for the first CSI report, the user device 102 may report CSI for all subbands, for the second CSI report, the user device 102 may report CSI for subbands within resources having a second DL resource type, and for the third CSI report, the user device 102 may report CSI for subbands within resources having a third DL resource type.

[0102] The above description and the accompanying drawings provide specific exemplary embodiments and implementations. However, the described subject matter may be embodied in various different forms, and therefore, it is intended that the subject matter encompassed or claimed be construed as not being limited to any exemplary embodiment described herein. A reasonably broad scope of subject matter as claimed or encompassed is intended. Among other things, for example, the subject matter may be embodied as a method, device, component, system, or non-transitory computer-readable medium for storing computer code. Thus, the embodiments may take the form of, for example, hardware, software, firmware, storage medium, or any combination thereof. For example, the method embodiments described above may be implemented by a component, device, or system including a memory and a processor by executing computer code stored in the memory.

[0103] Throughout this specification and the claims, terms may have subtle meanings that are suggested or implied in the context beyond the meaning explicitly stated. Similarly, the phrase "in one embodiment / implementation" as used herein does not necessarily refer to the same embodiment, and the phrase "in another embodiment / implementation" as used herein does not necessarily refer to a different embodiment. For example, the subject matter described in the claims is intended to include combinations of the example embodiments in whole or in part.

[0104] Generally, terms may be understood at least in part from their use in context. For example, terms such as "and," "or," or "and / or" as used herein may include various meanings that may depend at least in part on the context in which such terms are used. Typically, "or" when used to relate a list such as A, B, or C is intended to mean not only A, B, and C, which are used herein in an inclusive sense, but also A, B, or C, which are used herein in an exclusive sense. Furthermore, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending at least in part on the context. Similarly, terms such as "a," "an," or "the" may be understood to convey a singular use or to convey a plural use, depending at least in part on the context. Moreover, the term "based on" may be understood as not necessarily intended to convey an exclusive set of factors, but instead may allow for the existence of additional factors not necessarily explicitly described, depending at least in part on the context.

[0105] References to features, advantages, or similar language throughout this specification do not imply that all of the features and advantages that may be realized by the solution should or are included in any single implementation thereof. Rather, language referring to features and advantages is understood to mean that the particular feature, advantage, or characteristic described in connection with an embodiment is included in at least one embodiment of the solution. Thus, descriptions of features and advantages throughout this specification, as well as similar language, may, but do not necessarily, refer to the same embodiment.

[0106] Furthermore, the described features, advantages, and characteristics of the solution may be combined in any suitable manner in one or more embodiments. Those skilled in the art will recognize in light of the description herein that the solution may be practiced without one or more of the specific features or advantages of a particular embodiment. In other instances, additional features and advantages may be recognized in certain embodiments that may not be present in all embodiments of the solution.

[0107] The subject matter of the present disclosure may also relate to or include, among other aspects, the following:

[0108] A first aspect includes a method for wireless communication including determining, by a radio access node, a downlink transmission power based on at least one downlink power control parameter of a plurality of downlink power control parameters, each of the plurality of downlink power control parameters corresponding to a respective one of a plurality of resource types, and transmitting, by the radio access node, a downlink signal or a downlink channel to a user device in accordance with the downlink transmission power.

[0109] A second aspect includes a method for wireless communication including: determining, by a user device, a downlink transmission power based on at least one downlink power control parameter of a plurality of downlink power control parameters, each of the plurality of downlink power control parameters corresponding to a respective one of a plurality of resource types; and receiving, by the user device, a downlink signal or downlink channel from a radio access node, the downlink signal or downlink channel being transmitted in accordance with the downlink transmission power.

[0110] A third aspect includes any of the first or second aspects and further includes configuring a plurality of downlink power parameters by the radio access node to indicate a downlink transmission power.

[0111] A fourth aspect includes any of the first to third aspects and further includes determining, by at least one of a radio access node or a user device, resources over which a downlink signal is to be transmitted; determining, by at least one of the radio access node or the user device, one resource type of a plurality of resource types in the resources over which the downlink signal is to be transmitted; and determining, by the at least one of the radio access node or the user device, at least one downlink power control parameter based on the determined resource type.

[0112] A fifth aspect includes any of the first through fourth aspects and further includes the at least one downlink power control parameter comprising a power value at a downlink transmit power.

[0113] A sixth aspect includes any of the first through fifth aspects and further includes the at least one downlink power control parameter comprising a power offset value for the power value.

[0114] A seventh aspect includes any of the first to sixth aspects and further includes the at least one downlink power control parameter comprising a transmission bandwidth for transmitting the downlink signal.

[0115] An eighth aspect includes any of the first to seventh aspects and further includes the downlink signal comprising a synchronization signal / physical broadcast channel block (SSB), a channel state information reference signal (CSI-RS), a remote interference management reference signal (RIM-RS), or a positioning reference signal (PRS), and the downlink channel comprises a physical downlink shared channel (PDSCH), a physical broadcast channel (PBCH), or a physical downlink control channel (PDCCH).

[0116] A ninth aspect includes any of the first to eighth aspects and further includes the plurality of resource types including a first resource type for a first time unit configured as a downlink time unit, where all frequency resources for, in, or a bandwidth portion corresponding to the first time unit are used for downlink transmissions, or a first frequency resource type for, in, or a bandwidth portion corresponding to the first time unit are used for downlink transmissions, and a second resource type for a second time unit configured as a downlink time unit, where all frequency resources for, in, or a bandwidth portion corresponding to the second time unit are used for downlink transmissions. and a second resource type for a third time unit configured as an uplink time unit, wherein the bandwidth portion for, in or corresponding to the third time unit comprises a first portion used for uplink transmissions and a second portion used for downlink transmissions or a third frequency resource for, in or corresponding to the third time unit.

[0117] A tenth aspect includes the ninth aspect and further includes that each of the first time unit, the second time unit, and the third time unit comprises a frame, a subframe, a slot, a subslot, or a symbol.

[0118] An eleventh aspect includes a method for wireless communication that includes generating, by a radio access node, a downlink control information (DCI) or a medium access control (MAC) control element (CE) to indicate a plurality of downlink transmit powers for transmission of a downlink signal or a downlink channel, each of the plurality of downlink transmit powers corresponding to a respective one of a plurality of time units in which the downlink signal or the downlink channel is to be transmitted, and transmitting, by the radio access node, the DCI or MAC CE to a user device.

[0119] A twelfth aspect includes the eleventh aspect and further includes transmitting, by the radio access node, downlink signals or downlink channels according to a plurality of downlink transmit powers.

[0120] A thirteenth aspect includes any of the eleventh or twelfth aspects and further includes generating the DCI or MAC CE includes configuring the DCI or MAC CE to include a plurality of information blocks, each information block indicating a respective one of a plurality of downlink transmission powers for a respective one of the plurality of time units.

[0121] A fourteenth aspect includes the thirteenth aspect and further includes that each information block further indicates a respective one of a plurality of time units, the method further including determining, by the radio access node, the plurality of time units from the plurality of information blocks.

[0122] A fifteenth aspect includes any of the eleventh to fourteenth aspects and further includes that generating the DCI or MAC CE includes configuring the DCI or MAC CE to indicate a start time unit of the multiple time units.

[0123] A sixteenth aspect includes any of the eleventh to fifteenth aspects and further includes the DCI or MAC CE indicating a transmission bandwidth for a time unit of the plurality of time units, the transmission bandwidth determining a downlink transmit power for the time unit.

[0124] A seventeenth aspect includes a method for wireless communication that includes receiving, by a user device, downlink control information (DCI) or a medium access control (MAC) control element (CE); and determining, by the user device, from the DCI or MAC CE, a plurality of downlink transmit powers for transmission of a downlink signal or a downlink channel, each of the plurality of downlink transmit powers corresponding to a respective one of a plurality of time units over which the downlink signal or the downlink channel is transmitted.

[0125] An eighteenth aspect includes the seventeenth aspect and further includes receiving, by the user device, a downlink channel or a downlink signal from the radio access node according to a plurality of transmission powers indicated by the DCI or MAC CE.

[0126] A nineteenth aspect includes any of the seventeenth or eighteenth aspects and further includes that the DCI or MAC CE includes a plurality of information blocks, each information block indicating a respective one of a plurality of downlink transmit powers for a respective one of a plurality of time units, and determining the plurality of downlink transmit powers from the DCI or MAC CE includes determining the plurality of transmit powers from the plurality of information blocks.

[0127] A twentieth aspect includes the nineteenth aspect and further includes that each information block further indicates a respective one of a plurality of time units, and the method further includes determining, by the user device, the plurality of time units from the plurality of information blocks.

[0128] A twenty-first aspect includes any of the seventeenth to twentieth aspects and further includes that the DCI or MAC CE indicates a start time unit of the multiple time units, and the method further includes determining, by the user device, the start time unit from the DCI or MAC CE, and determining, by the user device, the multiple time units based on the start time unit.

[0129] A 22nd aspect includes any of the 17th to 21st aspects and further includes that the DCI or MAC CE indicates a transmission bandwidth for a time unit of the multiple time units, and determining the multiple downlink transmission powers from the DCI or MAC CE includes determining the downlink transmission power for the time unit based on the transmission bandwidth indicated in the DCI or MAC CE.

[0130] A twenty-third aspect includes a method for wireless communication that includes determining, by a user device, an uplink transmission power based on at least one uplink power control parameter of a plurality of uplink power control parameters, each of the plurality of uplink power control parameters corresponding to a respective one of a plurality of resource types, and transmitting, by the user device, an uplink signal or uplink channel to a radio access node in accordance with the uplink transmission power.

[0131] A twenty-fourth aspect includes a method for wireless communication that includes determining, by a radio access node, an uplink transmission power based on at least one uplink power control parameter of a plurality of uplink power control parameters, each of the plurality of uplink power control parameters corresponding to a respective one of a plurality of resource types, and receiving, by the radio access node, an uplink signal or uplink channel from a user device, the uplink signal or uplink channel being transmitted in accordance with the uplink transmission power.

[0132] A twenty-fifth aspect includes any of the twenty-third or twenty-fourth aspects and further includes at least one of the plurality of uplink power control parameters comprising a function of a received power target, a maximum output power, a cell specific power component, a user device (UE) specific power component, a coefficient of path loss, a path loss reference signal, a loop index, a power control adjustment state, a plurality of transmit power command values, or a number of bits per resource element (BPRE).

[0133] A 26th aspect includes any of the 23rd to 25th aspects and further includes the plurality of resource types including a first resource type for a first time unit configured as an uplink time unit, where all frequency resources for, in, or a bandwidth portion corresponding to the first time unit are used for uplink transmissions, or a first frequency resource for, in, or a bandwidth portion corresponding to the first time unit are used for uplink transmissions, and a second resource type for a second time unit configured as an uplink time unit, where all frequency resources for, in, or a bandwidth portion corresponding to the second time unit are used for uplink transmissions. and a second resource type for a third time unit configured as a downlink time unit, wherein the bandwidth portion for, in or corresponding to the third time unit comprises a first portion used for downlink transmission and a second portion used for uplink transmission or a third frequency resource for, in or corresponding to the third time unit.

[0134] A 27th aspect includes any of the 23rd to 26th aspects and further includes: the uplink signal or uplink channel is transmitted on first resources having a first resource type of the multiple resource types and on second resources having a second resource type of the multiple resource types, and determining the uplink transmit power includes determining a first uplink transmit power for transmission on the first resources based on a first uplink power control parameter of the multiple uplink power control parameters and determining a second uplink transmit power for transmission on the second resources based on a second uplink power control parameter of the multiple uplink power control parameters.

[0135] A twenty-eighth aspect includes a wireless communication device having a processor and a memory, the processor configured to read code from the memory and perform a method of any of the first to twenty-seventh aspects.

[0136] A twenty-ninth aspect includes a computer program product including a computer-readable program medium including code stored thereon, the code, when executed by a processor, causing the processor to perform a method of any of the first to twenty-seventh aspects.

[0137] In addition to the features mentioned in each of the independent aspects listed above, some examples may exhibit optional features mentioned in dependent aspects and / or disclosed and illustrated in the description above, either alone or in combination.

Claims

1. 1. A method for wireless communication, the method comprising: determining, with a user device, an uplink transmission power based on at least one uplink power control parameter of a plurality of uplink power control parameters, each of the plurality of uplink power control parameters corresponding to a respective one of a plurality of resource types; transmitting an uplink signal or an uplink channel to a radio access node according to the uplink transmission power using the user device; A method comprising:

2. 1. A method for wireless communication, the method comprising: determining, with a radio access node, an uplink transmission power based on at least one uplink power control parameter of a plurality of uplink power control parameters, each of the plurality of uplink power control parameters corresponding to a respective one of a plurality of resource types; receiving an uplink signal or an uplink channel from a user device using the radio access node; Including, The uplink signal or the uplink channel is transmitted according to the uplink transmit power.

3. 3. The method of claim 1 or 2, wherein at least one of the plurality of uplink power control parameters comprises a function of a received power target, a maximum output power, a cell specific power component, a user equipment (UE) specific power component, a factor of path loss, a path loss reference signal, a loop index, a power control adjustment state, a plurality of transmit power command values, or a number of bits per resource element (BPRE).

4. The plurality of resource types include: a first resource type for a first time unit configured as an uplink time unit, wherein all frequency resources for, in, or in a bandwidth portion corresponding to the first time unit are used for uplink transmission or a first frequency resource for, in, or in the first time unit; a second resource type for a second time unit configured as an uplink time unit, wherein a bandwidth portion for, in or corresponding to the second time unit comprises a first portion used for uplink transmissions and a second portion used for downlink transmissions or a second frequency resource for, in or corresponding to the second time unit; a third resource type for a third time unit configured as a downlink time unit, wherein a bandwidth portion for, in or corresponding to the third time unit comprises a first portion used for downlink transmissions and a second portion used for uplink transmissions or a third frequency resource for, in or corresponding to the third time unit; The method according to claim 1 or 2, comprising:

5. The method of claim 4, wherein the first time unit, the second time unit, and the third time unit each comprise a frame, a subframe, a slot, a subslot, or a symbol.

6. The uplink signal or the uplink channel is transmitted on first resources having a first resource type of the plurality of resource types and on second resources having a second resource type of the plurality of resource types, and determining the uplink transmit power includes: determining a first uplink transmit power for transmission on the first resource based on a first uplink power control parameter of the plurality of uplink power control parameters; determining a second uplink transmit power for transmission on the second resource based on a second uplink power control parameter of the plurality of uplink power control parameters; The method of claim 1 or 2, comprising:

7. A wireless communication device comprising a processor and a memory, the processor configured to read code from the memory and to implement a method according to claim 1 or 2.

8. A computer program product comprising a computer-readable program medium having code stored thereon, the code, when executed by a processor, causing the processor to implement a method as described in claim 1 or 2.

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