Reciprocity-based power control for cross-link interference

Abstract

Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive a configuration from a base station for indicating interference reciprocity between a first UE and a second UE, wherein the interference reciprocity is associated with cross-link interference (CLI) between the first UE and the first UE. The first UE may also receive an indication of a transmit power of the second UE from the base station. The first UE may measure a path loss associated with the CLI between the first UE and the second UE based at least in part on the received transmit power of the second UE. The first UE may determine a transmit power for transmission of one or more uplink messages based at least in part on the measured path loss, and send the uplink message using the determined transmit power.

Description

Technical Field

[0001] The following relates generally to wireless communications, and more particularly to reciprocity based power control for cross-link interference (CLI). Background Art

[0002] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcasting, etc. These systems can support communication with multiple users by sharing available system resources (e.g., time, frequency and power). Examples of such multiple access systems include fourth generation (4G) systems (e.g., long term evolution (LTE) systems, improved LTE (LTE-A) systems or LTE-A Pro systems) and fifth generation (5G) systems (which may be referred to as new radio (NR) systems). These systems may use technologies such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA) or discrete Fourier transform spread spectrum orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each base station or network access node simultaneously supporting communication for multiple communication devices (which may be further referred to as user equipment (UE)).

[0003] In some wireless communication systems, two or more UEs may have different timing or resource configurations, so that one UE may be configured to receive a signal in a symbol or time slot, while another UE is configured to send a signal in the same symbol or time slot. When the UEs are very close, the UEs are able to detect the signals sent by each other, and one UE may experience cross-link interference (CLI) caused by another UE due to the conflicting time slot configuration. In some cases, when a victim UE (i.e., a UE experiencing CLI) becomes an aggressor UE (i.e., a UE causing CLI) in a different symbol or time slot, there may be a reciprocity effect (e.g., CLI reciprocity). For example, when each of the UEs is configured with one or more downlink symbols that overlap with one or more uplink symbols of another UE, two or more UEs may interfere with each other through CLI, which may result in increased interference, lost communications, or other problems experienced by the UEs. Summary of the invention

[0004] The described technology relates to improved methods, systems, devices and apparatuses for supporting power control based on reciprocity for cross-link interference (CLI). In summary, the described technology provides a method for interference management by a first user equipment (UE) by adjusting the transmission power for uplink transmission based at least in part on the measurement of CLI from a second UE. The first UE can receive a configuration indicating CLI reciprocity between the first UE and the second UE (e.g., including CLI resources associated with the CLI reciprocity) from a base station, wherein the interference reciprocity is associated with the CLI between the first UE and the second UE. The first UE can also receive an indication of the transmit power of the second UE from the base station. The first UE can measure the path loss associated with the CLI between the first UE and the second UE based at least in part on the transmit power received by the second UE. The first UE can determine the transmit power for the transmission of one or more uplink messages based at least in part on the measured path loss, and send the uplink message using the determined transmit power.

[0005] A method of wireless communication at a first UE is described. The method may include: receiving from a base station a configuration indicating interference reciprocity between a first UE and a second UE, the interference reciprocity being associated with a CLI between the first UE and the second UE; receiving from the base station an indication of a configured transmit power for the second UE based on the CLI between the first UE and the second UE; measuring a path loss associated with the CLI between the first UE and the second UE based on the configured transmit power; determining a transmit power for transmission of one or more uplink messages by the first UE based on the measured path loss; and sending the one or more uplink messages according to the determined transmit power.

[0006] An apparatus for wireless communication at a first UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to perform the following operations: receive a configuration indicating interference reciprocity between a first UE and a second UE from a base station, the interference reciprocity being associated with a CLI between the first UE and the second UE; receive an indication of a configured transmit power for the second UE based on the CLI between the first UE and the second UE from the base station; measure a path loss associated with the CLI between the first UE and the second UE based on the configured transmit power; determine a transmit power for transmission of one or more uplink messages by the first UE based on the measured path loss; and send one or more uplink messages according to the determined transmit power.

[0007] Another apparatus for wireless communication at a first UE is described. The apparatus may include means for: receiving from a base station a configuration indicating interference reciprocity between a first UE and a second UE, the interference reciprocity being associated with a CLI between the first UE and the second UE; receiving from the base station an indication of a configured transmit power of the second UE for the CLI based on the first UE and the second UE; measuring a path loss associated with the CLI between the first UE and the second UE based on the configured transmit power; determining a transmit power for transmission of one or more uplink messages by the first UE based on the measured path loss; and sending the one or more uplink messages according to the determined transmit power.

[0008] A non-transitory computer-readable medium storing code for wireless communication at a first UE is described. The code may include instructions executable by a processor to: receive from a base station a configuration indicating interference reciprocity between a first UE and a second UE, the interference reciprocity being associated with a CLI between the first UE and the second UE; receive from the base station an indication of a configured transmit power for the second UE based at least in part on the CLI between the first UE and the second UE; measure a path loss associated with the CLI between the first UE and the second UE based on the configured transmit power; determine a transmit power for transmission of one or more uplink messages by the first UE based on the measured path loss; and send the one or more uplink messages according to the determined transmit power.

[0009] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining resources associated with a CLI between a first UE and a second UE based on a configuration; performing interference measurements on the resources; and determining a path loss between the first UE and the second UE based on the interference measurements on the resources.

[0010] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, determining path loss may include operations, features, units, or instructions for determining a difference between a configured transmit power at the UE and interference measurements performed on a resource.

[0011] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, performing interference measurements may include operations, features, means, or instructions for measuring a reference signal received power (RSRP) associated with a second UE on a resource.

[0012] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, interference measurements may be performed using the same spatial filter used for transmission of one or more uplink messages.

[0013] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: determining resources associated with a CLI between a UE and multiple UEs; determining multiple path loss values ​​associated with the CLI between the UE and multiple UEs based on the resources, wherein each path loss value in the multiple path loss values ​​corresponds to a corresponding one of the multiple UEs; and determining a path loss based on the multiple path loss values.

[0014] In some examples of methods, apparatus, and non-transitory computer-readable media described herein, determining the path loss may include operations, features, means, or instructions for determining the path loss as a minimum path loss value among a plurality of path loss values.

[0015] In some examples of methods, apparatus, and non-transitory computer-readable media described herein, determining the path loss may include operations, features, units, or instructions for performing the following operations: determining the path loss as an average path loss value of multiple path loss values ​​in the decibel meter (dB) domain.

[0016] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, determining the path loss may include operations, features, units, or instructions for performing the following operations: determining the path loss as an average path loss value of multiple path loss values ​​in a linear domain; and converting the average path loss value of the multiple path loss values ​​in the linear domain to a dB metering domain.

[0017] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: identifying a path loss coefficient based on cross-link interference; and determining a transmit power based on the measured path loss and the path loss coefficient.

[0018] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, determining the transmit power may include operations, features, units, or instructions for performing the following operations: determining the transmit power based on a signal type associated with one or more uplink messages, wherein the signal type includes one of an uplink data channel, an uplink control channel, a reference signal, or a random access channel.

[0019] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, determining a transmit power may include operations, features, units, or instructions for adjusting the transmit power from a first value to a second value greater than the first value based on a measured path loss exceeding a path loss threshold.

[0020] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, determining the transmit power may include operations, features, units, or instructions for performing the following operations: adjusting the transmit power from a first value to a second value less than the first value based on the measured path loss being below a path loss threshold.

[0021] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a configuration for indicating interference reciprocity between a first UE and a second UE may include operations, features, units, or instructions for performing the following operations: measuring a path loss associated with a CLI between the first UE and the first UE in a first symbol; and sending at least one uplink message of one or more uplink messages in a second symbol.

[0022] A method of wireless communication at a base station is described. The method may include: determining interference reciprocity between a first UE and a second UE, the interference reciprocity being associated with a CLI between the first UE and the second UE; sending a configuration to the first UE indicating the interference reciprocity between the first UE and the second UE; configuring a transmit power for the second UE based on cross-link interference; and sending an indication of the configured transmit power for the second UE to the first UE.

[0023] An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to perform the following operations: determine interference reciprocity between a first UE and a second UE, the interference reciprocity being associated with a CLI between the first UE and the second UE; send a configuration to the first UE indicating the interference reciprocity between the first UE and the second UE; configure a transmit power for the second UE based on cross-link interference; and send an indication of the configured transmit power for the second UE to the first UE.

[0024] Another apparatus for wireless communication at a base station is described. The apparatus may include means for determining interference reciprocity between a first UE and a second UE, the interference reciprocity being associated with a CLI between the first UE and the second UE; sending a configuration to the first UE indicating the interference reciprocity between the first UE and the second UE; configuring a transmit power for the second UE based on cross-link interference; and sending an indication of the configured transmit power for the second UE to the first UE.

[0025] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: determine interference reciprocity between a first UE and a second UE, the interference reciprocity being associated with a CLI between the first UE and the second UE; send a configuration to the first UE indicating the interference reciprocity between the first UE and the second UE; configure a transmit power for the second UE based on cross-link interference; and send an indication of the configured transmit power for the second UE to the first UE.

[0026] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for transmitting a set of resources associated with a CLI between a first UE and a second UE in a configuration.

[0027] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: sending configuration via radio resource control (RRC) signaling, medium access control (MAC) control element (MAC-CE), or downlink control information (DCI).

[0028] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for sending an indication of the configured transmit power for the second UE via RRC signaling, MAC-CE, or DCI. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 An example of a wireless communication system supporting reciprocity based power control for cross-link interference (CLI) in accordance with aspects of the present disclosure is shown.

[0030] Figure 2A and 2B An example of a wireless communication system supporting reciprocity based power control for CLI in accordance with aspects of the present disclosure is shown.

[0031] Figure 3An example of time-frequency resource configuration supporting reciprocity based power control for CLI in accordance with aspects of the present disclosure is shown.

[0032] Figure 4 An example of a process flow supporting reciprocity based power control for a CLI in accordance with aspects of the present disclosure is shown.

[0033] Figure 5 An example of a process flow supporting reciprocity based power control for a CLI in accordance with aspects of the present disclosure is shown.

[0034] Figure 6 and 7 A block diagram of a device supporting reciprocity based power control for a CLI in accordance with aspects of the present disclosure is shown.

[0035] Figure 8 A block diagram of a communications manager supporting reciprocity based power control for a CLI is shown in accordance with aspects of the present disclosure.

[0036] Fig. 9 A diagram of a system including a device supporting reciprocity based power control for a CLI in accordance with aspects of the present disclosure is shown.

[0037] Fig.10 and 11 A block diagram of a device supporting reciprocity based power control for a CLI in accordance with aspects of the present disclosure is shown.

[0038] Fig.12 A block diagram of a communications manager supporting reciprocity based power control for a CLI is shown in accordance with aspects of the present disclosure.

[0039] Fig.13 A diagram of a system including a device supporting reciprocity based power control for a CLI in accordance with aspects of the present disclosure is shown.

[0040] Figures 14 to 18 A flow chart illustrating a method of supporting reciprocity based power control for a CLI in accordance with aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0041] A wireless communication system may support communication for multiple wireless devices, referred to as user equipment (UE). For example, a first UE and one or more second UEs may be served by the same base station and the same serving cell, but in other cases, the first and second UEs may be served by different cells or base stations, where the different serving cells may at least partially overlap in coverage. In such cases, the UE may be able to detect transmissions from other UEs, which may cause interference.

[0042] The first UE may have a first slot format, and the second UE may have a second slot format. If the slot formats for a given slot are different, the slot format for the first UE may conflict with the slot format for the second UE, which may cause interference. For example, the second UE may be configured to send an uplink transmission in the same time resource (e.g., one or more slots) in which the first UE is configured to receive a downlink transmission. In such a case, the uplink transmission performed by the second UE may interfere with the downlink reception at the first UE. This may be an example of cross-link interference (CLI), in which the second UE is an aggressor UE and the first UE is a victim UE. CLI may occur in a system configured to support and utilize time division duplex (TDD) communication for wireless devices. CLI may occur between UEs served by different cells, but when one UE is configured for downlink transmission, when another UE is configured for uplink transmission, CLI may also occur between UEs in the same cell. CLI may be caused by any uplink transmission from an aggressor UE, including but not limited to Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Physical Random Access Channel (PRACH), PRACH preamble, and Sounding Reference Signal (SRS) transmissions.

[0043] In some examples, when each of the two UEs has one or more downlink time resources (e.g., time slots or symbols) that overlap in time with the uplink time resources (e.g., time slots or symbols) of the other UE, the two UEs may interfere with each other through CLI. This mutual CLI between two or more UEs may be referred to as CLI reciprocity. For example, in a time slot, the first UE may be configured for uplink transmission, and the second UE may be configured for downlink transmission. At this time, the second UE may experience CLI from the first UE that sends the uplink, and the first UE may be an aggressor UE for CLI of the CLI, and the second UE may be a victim UE for CLI. At the second time slot, the first UE may be configured for uplink transmission, and the second UE may be configured for uplink transmission. At this time, the first UE may experience CLI from the second UE, and the first UE may be a victim UE for CLI, and the second UE may be an aggressor UE for CLI. Whether detectable CLI occurs may also depend on the transmit beam and receive beam of the first UE and the second UE, and the transmission power of each of the first UE and the second UE.

[0044] A network such as a base station may configure a first UE with a CLI measurement configuration so that the victim UE can perform interference management. The victim UE may measure the CLI and report the measurement to the network. The victim UE may receive a third layer measurement and reporting mechanism for CLI measurement. The CLI measurement may include measurements of one or more of SRS, reference signal received power (RSRP), or received signal strength indicator (RSSI) as measurement metrics. The measurement resource configuration may also include the period, frequency, and resource block or orthogonal frequency division multiplexing (OFDM) symbol on which the victim UE will measure the CLI. If RSRP is configured, the resource configuration also includes information about the SRS sequence to be measured. The CLI may correspond to the transmission of an uplink reference signal (such as an SRS or an uplink channel) by the aggressor UE. The aggressor UE may use a transmit beam (e.g., a spatial filter for transmission) to send an uplink signal, wherein the transmit beam is the same as the receive beam used by the aggressor UE to receive a downlink signal from the base station, which may cause interference.

[0045] There may be a timing difference between the slot configuration of the victim UE and the slot configuration of the aggressor UE. The victim UE may not know the slot configuration of the aggressor UE, where the slot configuration may include a TDD uplink or downlink configuration or an SRS transmission configuration. To measure CLI, the victim UE may follow the measurement resource configuration received from the network.

[0046] In some examples, when CLI reciprocity exists between two UEs, the first UE may perform power control to reduce CLI to the other UE. The first UE may determine to adjust the transmit power for uplink transmission to reduce CLI to the other UE. In some cases, the determination of the transmit power for uplink transmission may be based on a CLI measurement at the first UE.

[0047] In some examples, the first UE may perform power control for CLI based on CLI measurements and the configured transmission power of the second UE. The network may configure the first UE with CLI measurement resources, and the network may also configure the first UE with the transmission power level of the second UE, where the second UE generates CLI observed by the first UE. The first UE may measure CLI from the second UE, and use the measured CLI and the configured transmission power level of the second UE to estimate the path loss between the first UE and the second UE. The first UE may use the estimated path loss between the first UE and the second UE to adjust the transmission power level of the uplink transmission performed by the first UE to reduce the CLI experienced at the second UE. Similarly, the second UE may also perform power control for CLI based on CLI measurements and the configured transmission power of the first UE. The network may configure the second UE with CLI measurement resources and the transmission power level of the first UE. The second UE may measure CLI from the first UE, and use the measured CLI and the configured transmission power level of the first UE to estimate the path loss between the first UE and the second UE. The second UE may use the estimated path loss between the first UE and the second UE to adjust a transmit power level of uplink transmissions by the second UE to reduce the CLI experienced at the first UE.

[0048] In some examples, the first UE may perform power control for CLI based on CLI measurements and an estimate of path loss between the first UE and the second UE. In some cases, the estimate of path loss between the first UE and the second UE may be based on the transmit power of the CLI measurement resource and the CLI measurement. In some cases, the estimate of path loss between the first UE and the second UE may be equal to the transmit power of the CLI measurement resource minus the CLI measurement. In some examples, the estimate of path loss between the first UE and the second UE may be based on the transmit power of the CLI measurement resource and the CLI measurement, where the CLI measurement may be an RSRP measurement. In some cases, when performing power control for CLI, the first UE may use the same spatial filtering for CLI measurements and uplink transmissions. Using the same spatial filtering for CLI measurements and uplink transmissions, the path loss estimate estimated based on the CLI measurements performed by the first UE may reflect the path loss for CLI from the first UE to the second UE.

[0049] In some examples, the first UE may experience CLI reciprocity with multiple second UEs. In some cases, the first UE may be configured with a transmit power level for each of the multiple second UEs. In this case, the first UE may determine the path loss between the first UE and each of the multiple second UEs based on the configured transmit power level. In other cases, the first UE may estimate multiple path loss values ​​based on CLI measurement resources from each of the multiple second UEs. In some examples, the first UE may perform power control for CLI using the minimum value of the path loss value between the first UE and the multiple second UEs. In some examples, the first UE may perform power control for CLI using the average value of all path loss values ​​between the first UE and the multiple second UEs. In some cases, the first UE may average the path loss values ​​in the decibel milliwatt (dBm) domain. In other cases, the first UE may average the path loss values ​​in the linear domain and then convert the average value from the linear domain to the dBm domain.

[0050] In some cases, power control is applied separately to uplink transmissions, including PUSCH, PUCCH, SRS, and PRACH. Power control for uplink transmissions may be applied according to a specified power control formula. For example, power control for PUSCH transmissions may be applied according to the following equation: Where P CMAX is the maximum transmit power, P O_PUSCH (j) is the target power, α(j) is the path loss scaling factor, PL(q) is the path loss between the UE and the serving base station, Δ TF Taking into account the modulation and coding scheme (MCS) and code rate used for uplink transmission, is the bandwidth of the uplink transmission, and f(l) is the closed-loop power control value. In some examples, to perform power control for CLI, the power control formula specified for uplink transmission may be modified to include additional terms. In some cases, the power control formula specified may be modified to include a term PL representing the path loss between the first UE and the second UE according to the following equation: CLI and the term β used to represent the path loss coefficient: Wherein q determines a downlink reference signal comprising a channel state information reference signal (CSI-RS) and a synchronization signal block (SSB) for estimating a downlink path loss for PUSCH transmission, j determines one of a plurality of open-loop power controller parameter sets to be used for open-loop power control, and l determines one of two closed-loop power control parameter sets to be used for closed-loop power control.

[0051] Aspects of the disclosure are first described in the context of wireless communication systems. Aspects of the disclosure are further illustrated by and described with reference to time-frequency resource configurations and process flow diagrams. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flow diagrams involving reciprocity-based power control for CLI.

[0052] Figure 1 An example of a wireless communication system 100 supporting power control based on reciprocity for CLI in accordance with various aspects of the present disclosure is shown. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a long term evolution (LTE) network, an improved LTE (LTE-A) network, an LTE-A Pro network, or a new radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, or communications with low-cost and low-complexity devices, or any combination thereof.

[0053] The base stations 105 may be dispersed throughout a geographic area to form the wireless communication system 100 and may be devices of different forms or capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base stations 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the base stations 105 and the UEs 115 may support transmission of signals according to one or more radio access technologies.

[0054] UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary, mobile, or both at different times. UEs 115 may be devices of different forms or with different capabilities. Figure 1Some example UEs 115 are shown in FIG. 1. The UEs 115 described herein can communicate with various types of devices, such as other UEs 115, base stations 105, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices), such as Figure 1 shown.

[0055] The base stations 105 may communicate with the core network 130, or communicate with each other, or perform both operations. For example, the base stations 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). The base stations 105 may communicate with each other directly (e.g., directly between the base stations 105) on the backhaul links 120 (e.g., via X2, Xn, or other interfaces), or communicate with each other indirectly (e.g., via the core network 130), or perform both operations. In some examples, the backhaul links 120 may be one or more wireless links or may include one or more wireless links.

[0056] One or more of the base stations 105 described herein may include or may be referred to by those skilled in the art as a base station transceiver, a wireless base station, an access point, a wireless transceiver, a Node B, an evolved Node B (eNB), a next generation Node B, or a Gigabit Node B (any of which may be referred to as a gNB), a Home Node B, a Home Evolved Node B, or some other appropriate terminology.

[0057] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a user device, or some other appropriate terminology, where a "device" may also be referred to as a unit, a station, a terminal, or a client, among other examples. UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, among other examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, which may be implemented in various objects such as appliances, or vehicles, meters, among other examples.

[0058] The UE 115 described herein is capable of communicating with various types of devices, such as other UEs 115, which may sometimes act as relays, as well as base stations 105 and network devices, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, such as, among other examples. Figure 1 as shown in .

[0059] The UE 115 and the base station 105 can communicate with each other wirelessly via one or more communication links 125 on one or more carriers. The term "carrier" refers to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, the carrier used for the communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating the operation of the carrier, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation or multi-carrier operation. According to the carrier aggregation configuration, the UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used with both frequency division duplex (FDD) component carriers and TDD component carriers.

[0060] The signal waveform transmitted on the carrier may be composed of multiple subcarriers (e.g., using a multicarrier modulation (MCM) technique such as OFDM or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may be composed of a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Therefore, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate for UE 115 can be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may further increase the data rate or data integrity for communication with UE 115.

[0061] The basic time unit (which may be referred to as T s =1 / (Δf max ·N f ) seconds sampling period, where Δf max It can represent the maximum supported subcarrier spacing, and N f The time intervals for the base station 105 or the UE 115 may be expressed as multiples of a maximum supported discrete Fourier transform (DFT) size). The time intervals of the communication resources may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0062] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, the frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into multiple time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include multiple symbol periods (e.g., depending on the length of the cyclic prefix added in front of each symbol period). In some wireless communication systems 100, the time slots may be further divided into multiple micro-time slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.

[0063] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI)).

[0064] Physical channels may be multiplexed on a carrier according to various techniques. For example, one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique may be used to multiplex physical control channels and physical data channels on a downlink carrier. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by a plurality of symbol periods and may extend over a system bandwidth or a subset of a system bandwidth of a carrier. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more UEs in UE 115 may monitor or search a control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. The aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coding information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0065] Each base station 105 can provide communication coverage via one or more cells (e.g., macro cells, small cells, hot spots or other types of cells, or any combination thereof). The term "cell" can refer to a logical communication entity used to communicate with the base station 105 (e.g., on a carrier), and can be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID) or other identifier) ​​for distinguishing adjacent cells. In some examples, a cell can also refer to a geographic coverage area 110 or a portion of a geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. Depending on various factors (such as the capabilities of the base station 105), the range of such a cell can range from a smaller area (e.g., a structure, a subset of a structure) to a larger area. For example, a cell can be or include a building, a subset of a building, or an external space between or overlapping geographic coverage areas 110, as well as other examples.

[0066] A macro cell typically covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE 115 with a service subscription to a network provider that supports the macro cell. A small cell may be associated with a lower power base station 105 than a macro cell, and the small cell may operate in the same or different (e.g., licensed, unlicensed) frequency band as the macro cell. A small cell may provide unrestricted access to a UE 115 with a service subscription to a network provider, or may provide restricted access to a UE 115 associated with a small cell (e.g., a UE 115 in a closed subscriber group (CSG), a UE 115 associated with a user in a residence or office). A base station 105 may support one or more cells, and may also support the use of one or more component carriers to communicate on one or more cells.

[0067] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.

[0068] In some examples, the base stations 105 may be mobile and, therefore, provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 provide coverage for respective geographic coverage areas 110 using the same or different radio access technologies.

[0069] The wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, the wireless communication system 100 can be configured to support ultra-reliable low-latency (URLLC) or mission-critical communication. UE 115 can be designed to support ultra-reliable, low-latency or critical functions (e.g., mission-critical functions). Ultra-reliable communication can include private communication or group communication, and can be supported by one or more mission-critical services (such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions can include prioritization of services, and such mission-critical services can be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency can be used interchangeably herein.

[0070] In some examples, UE 115 can also communicate directly with other UE 115 on a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication can be within a geographic coverage area 110 of a base station 105. Other UEs 115 in such a group can be outside the geographic coverage area 110 of the base station 105, or otherwise unable to receive transmissions from the base station 105. In some examples, multiple groups of UEs 115 communicating via D2D communication can utilize a one-to-many (1:M) system, wherein each UE 115 transmits to each other UE 115 in the group. In some examples, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving the base station 105.

[0071] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connection, and other access, routing or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity for managing access and mobility (e.g., a mobility management entity (MME), an access and mobility management function unit (AMF)) and at least one user plane entity for routing or interconnecting packets to an external network (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function unit (UPF)). The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UE 115 served by a base station 105 associated with the core network 130. User IP packets may be transmitted via a user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to a network operator IP service 150. The network operator IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0072] Some of the network devices (e.g., base stations 105) may include subcomponents such as access network entities 140, which may be examples of access node controllers (ANCs). Each access network entity 140 may communicate with the UE 115 through one or more other access network transport entities 145 (which may be referred to as radio heads, smart radio heads, or transmit / receive points (TRPs)). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or merged into a single network device (e.g., base station 105).

[0073] The wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Typically, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, but the waves may be sufficient to penetrate structures for macro cells to provide service to UEs 115 located indoors. Transmissions using UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers) compared to transmissions using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0074] The wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 can employ license assisted access (LAA), LTE unlicensed (LTE-U) wireless access technology, or NR technology in an unlicensed band (such as the 5 GHz industrial, scientific, and medical (ISM) band). When operating in an unlicensed radio frequency spectrum band, devices (such as base stations 105 and UEs 115) can employ carrier sensing for conflict detection and avoidance. In some examples, operations in unlicensed bands can be based on a carrier aggregation configuration in combination with component carriers operating in a licensed band (e.g., LAA). Among other examples, operations in unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions.

[0075] The base station 105 or UE 115 may be equipped with multiple antennas, which may be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels (which may support MIMO operations or transmit or receive beamforming). For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, the antennas or antenna arrays associated with the base station 105 may be located at different geographical locations. The base station 105 may have an antenna array having antenna ports of several rows and columns that the base station 105 may use to support beamforming for communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals sent via the antenna ports.

[0076] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a base station 105 or a UE 115) to form or direct an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array so that some signals propagating in a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals transmitted via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each of the antenna elements may be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0077] As part of the beamforming operation, the base station 105 or the UE 115 may use beam scanning techniques. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communications with the UE 115. The base station 105 may send some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) multiple times in different directions. For example, the base station 105 may send signals based on different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by a transmitting device (such as the base station 105) or by a receiving device (such as the UE 115)) to identify a beam direction for subsequent transmission or reception by the base station 105.

[0078] Base station 105 may transmit some signals (e.g., data signals associated with a particular receiving device (e.g., UE 115)) in a single beam direction (e.g., a direction associated with the receiving device). In some examples, the beam direction associated with transmission along the single beam direction may be determined based on signals transmitted in one or more beam directions. For example, UE 115 may receive one or more of the signals transmitted by base station 105 in different directions and may report to base station 105 an indication of the signal received by UE 115 having the highest signal quality or otherwise acceptable signal quality.

[0079] In some examples, transmissions by a device (e.g., by a base station 105 or a UE 115) may be performed using multiple beam directions, and the device may generate a combined beam for transmission (e.g., from the base station 105 to the UE 115) using a combination of digital precoding or radio frequency beamforming. The UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. The base station 105 may send reference signals (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)) that may be precoded or not precoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type of codebook, a linear combination type of codebook, a port selection type of codebook). Although these techniques are described with reference to signals sent by base station 105 in one or more directions, UE 115 may employ similar techniques to send signals multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115) or to send signals in a single direction (e.g., to send data to a receiving device).

[0080] When receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from the base station 105, the receiving device (e.g., UE 115) can try multiple reception configurations (e.g., directional listening). For example, the receiving device can try multiple reception directions by receiving via different antenna subarrays, by processing the received signals according to different antenna subarrays, by receiving according to different reception beamforming weight sets applied to the signals received at multiple antenna elements of the antenna array (e.g., different directional listening weight sets), or by processing the received signals according to different reception beamforming weight sets applied to the signals received at multiple antenna elements of the antenna array (any of the above operations may be referred to as "listening" according to different reception configurations or reception directions). In some examples, the receiving device can use a single reception configuration to receive along a single beam direction (e.g., when receiving a data signal). A single receive configuration may be aligned on a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio (SNR), or otherwise acceptable signal quality based on listening according to multiple beam directions).

[0081] The wireless communication system 100 may support power control techniques based on reciprocity for CLI between two or more UEs 115. In some examples, a first UE 115 may be an aggressor UE and may perform power control (e.g., reduce or adjust uplink transmit power) in a given symbol or time slot to reduce CLI experienced by other UEs 115 in the wireless communication system. For example, the first UE 115 may determine to reduce transmit power for uplink transmissions on time resources identified as CLI resources (i.e., resources where the first UE 115 causes CLI interference at one or more other UEs 115) to reduce CLI experienced by the other UEs 115. In some cases, the determination of transmit power for uplink transmissions may be based on CLI measurements at the first UE 115, estimated path loss between the first UE 115 and one or more other UEs 115, or any combination thereof.

[0082] Figure 2A and 2BAn example of a wireless communication system 200-a and a wireless communication system 200-b that support power control based on reciprocity for CLI according to aspects of the present disclosure is shown. In some examples, the wireless communication system 200-a and the wireless communication system 200-b can implement aspects of the wireless communication system 100. For example, the wireless communication system 200-a and the wireless communication system 200-b may include one or more base stations 105 and one or more UEs 115, which may be represented as shown in reference Figure 1 An example of a base station 105 and a UE 115 is described. For example, the wireless communication system 200 may include two or more UEs 115, such as UEs 115-a and 115-b in the wireless communication system 200-a and UEs 115-c and 115-d in the wireless communication system 200-b. In some cases, one or more uplink transmissions 210 from a first UE 115 may cause interference at a second victim UE 115, such as a CLI 220.

[0083] Figure 2A An example wireless communication system 200-a that supports power control based on reciprocity for CLI is shown. In the wireless communication system 200-a, UE 115-a may be served by base station 105-a in coverage area 110-a, and UE 115-b may be served by base station 105-b in coverage area 110-b. In some examples, coverage area 110-a and coverage area 110-b may be physically proximate or physically overlap. UE 115-a and UE 115-b may be proximate and may have conflicting time slot configurations.

[0084] In some examples, UE 115-a and UE 115-b may experience CLI reciprocity. An uplink transmission 210-a from UE 115-a may cause CLI 220-a at UE 115-b, and an uplink transmission 210-b from UE 115-b may cause CLI 220-b at UE 115-a. UE 115-a may be configured with a first time slot format and UE 115-b may be configured with a second time slot format. If, for a given set of time slots, the first time slot format is different from the second time slot format, UE 115-a may be configured for uplink transmissions and UE 115-b is configured for downlink transmissions, or alternatively, UE 115-b may be configured for uplink transmissions and UE 115-a is configured for downlink transmissions.

[0085] In some examples, UE 115-a may perform interference management to reduce CLI 220-a experienced by UE 115-b. UE 115-a may perform interference management by adjusting the transmission power used for uplink transmission 210-a to reduce CLI experienced by UE 115-b. UE 115-a may adjust the transmission power used for uplink transmission 210-a based at least in part on an estimate of path loss between UE 115-a and UE 115-b. UE 115-a may determine an estimate of path loss between UE 115-a and UE 115-b based at least in part on a CLI measurement of CLI 220-b sent by UE 115-b.

[0086] In some examples, UE 115-a may communicate with base station 105-a to perform interference management. UE 115-a may receive a CLI measurement configuration from base station 105-a in a downlink transmission 205-a. The CLI measurement configuration may include an indication of CLI measurement resources for UE 115-a to use to measure CLI 220-b from UE 115-b. UE 115-a may receive a third layer measurement and reporting mechanism for CLI measurements. CLI measurements may include measurements of SRS or RSRP measurements. The measurement resource configuration may also include a period, frequency, and resource blocks or OFDM symbols on which UE 115-a will measure CLI 220-b. CLI 220-b may correspond to the transmission of an uplink reference signal (such as SRS) or an uplink channel by UE 115-b.

[0087] In some examples, UE 115-a may determine an estimate of the path loss between UE 115-a and UE 115-b based at least in part on a CLI measurement of CLI 220-b from UE 115-b and an indication of a transmit power used by UE 115-b to send an uplink transmission 210-b used to generate CLI 220-b. UE 115-a may receive an indication of a transmit power from base station 105-a, and UE 115-b may use the transmit power to send an uplink transmission 210-b used to generate CLI 220-b.

[0088] In some examples, UE 115-a may measure or estimate a path loss between UE 115-a and UE 115-b based at least in part on a CLI measurement of CLI 220-b from UE 115-b and a transmit power used during the CLI measurement resource. In some examples, the path loss may be estimated as a difference between the CLI measurement resource and the transmit power used during the CLI measurement. In some examples, UE 115-a may perform the CLI measurement by performing an RSRP measurement. In some examples, UE 115-a may perform the CLI measurement using the same spatial filter that UE 115-a will use for uplink transmissions.

[0089] In some examples, UE 115-a may adjust the transmission power used for uplink transmission 210-a based on the path loss value determined from the CLI measurement. In some cases, when a higher path loss is determined, the transmission power used for uplink transmission 210-a may be set higher. In other cases, when a lower path loss is determined, the transmission power used for uplink transmission 210-a may be set lower.

[0090] In some examples, UE 115-a can use a set of uplink power control formulas that support power control based on reciprocity for CLI. The set of uplink power control formulas can include power control formulas specific to each type of uplink transmission, such as but not limited to PUSCH, PUCCH, SRS, and PRACH. The power control formulas that support power control based on reciprocity for CLI can include terms that adjust for a determined path loss. The power control formulas that support power control based on reciprocity for CLI can adjust the power level so that the CLI 220 experienced at UE 115-b is below a threshold.

[0091] In some examples, UE 115-a may send uplink transmission 210-a using a transmission power determined based at least on a CLI measurement of CLI 220-b. In some examples, CLI 220-a from uplink transmission 210-a experienced at UE 115-b may be reduced below a threshold or eliminated.

[0092] In some examples, similar to the methods discussed herein for UE 115-a, UE 115-b may perform reciprocity-based power control for CLI. UE 115-b may adjust the transmission power used for uplink transmission 210-b based on the CLI measurement of CLI 220-a so that the CLI 220-b experienced at UE 115-a is less than a threshold.

[0093] Figure 2B An example wireless communication system 200-b that supports reciprocity-based power control for CLI is shown. In the wireless communication system 200-b, UE 115-c and UE 115-d may be served by base station 105-c in coverage area 110-c. In some examples, UE 115-c and UE 115-d may be in close proximity and may have conflicting time slot configurations.

[0094] In some examples, UE 115-c and UE 115-d may experience CLI reciprocity. An uplink transmission 210-c from UE 115-c may cause CLI 220-c at UE 115-d, and an uplink transmission 210-d from UE 115-d may cause CLI 220-d at UE 115-c. UE 115-c may be configured with a first time slot format and UE 115-d may be configured with a second time slot format. If the first time slot format is different from the second time slot format for a given set of time slots, UE 115-c may be configured for uplink transmissions and UE 115-d may be configured for downlink transmissions, or alternatively, UE 115-d may be configured for uplink transmissions and UE 115-c may be configured for downlink transmissions.

[0095] In some examples, UE 115-c may perform interference management to reduce CLI 220-c experienced by UE 115-d. UE 115-c may perform interference management by adjusting the transmission power used for uplink transmissions 210-c to reduce CLI experienced by UE 115-d. UE 115-c may adjust the transmission power used for uplink transmissions 210-c based at least in part on an estimate of path loss between UE 115-c and UE 115-d. UE 115-c may determine an estimate of path loss between UE 115-c and UE 115-d based at least in part on CLI measurements of CLI 220-d sent by UE 115-d.

[0096] In some examples, UE 115-c may communicate with base station 105-c to perform interference management. UE 115-c may receive a CLI measurement configuration from base station 105-c in a downlink transmission 205-c. The CLI measurement configuration may include an indication of CLI measurement resources for UE 115-c to use to measure CLI 220-d from UE 115-d. UE 115-c may receive a third layer measurement and reporting mechanism for CLI measurement. CLI measurements may include measurements of SRS or RSRP measurements. The measurement resource configuration may also include a period, frequency, and resource blocks or OFDM symbols on which UE 115-c will measure CLI 220-d. CLI 220-d may correspond to transmission of an uplink reference signal (such as SRS) or an uplink channel by UE 115-d.

[0097] In some examples, UE 115-c may determine an estimate of path loss between UE 115-c and UE 115-d based at least in part on a CLI measurement of CLI 220-d from UE 115-d and an indication of a transmit power that UE 115-d uses to send an uplink transmission 210-d for generating CLI 220-d. UE 115-c may receive an indication of a transmit power from base station 105-c that UE 115-d uses to send an uplink transmission 210-d for generating CLI 220-d.

[0098] In some examples, UE 115-c may estimate or measure a path loss between UE 115-c and UE 115-d based at least in part on a CLI measurement of CLI 220-d from UE 115-d and a transmit power of a CLI measurement resource. In some examples, the path loss may be estimated as a difference between the transmit power of the CLI measurement resource and the CLI measurement. In some examples, UE 115-c may perform the CLI measurement by performing an RSRP measurement. In some examples, UE 115-c may perform the CLI measurement using the same spatial filter that UE 115-c will use for uplink transmissions.

[0099] In some examples, UE 115-c may adjust the transmission power used for uplink transmission 210-c based on the path loss value determined from the CLI measurement. In some cases, when a higher path loss is determined, the transmission power used for uplink transmission 210-c may be set higher. In other cases, when a lower path loss is determined, the transmission power used for uplink transmission 210-c may be set lower.

[0100] In some examples, UE 115-c can use a set of uplink power control formulas that support power control based on reciprocity for CLI. The set of uplink power control formulas can include power control formulas specific to each type of uplink transmission, such as but not limited to PUSCH, PUCCH, SRS, and PRACH. The power control formulas that support power control based on reciprocity for CLI can include terms that adjust for a determined path loss. The power control formulas that support power based on reciprocity control for CLI can adjust the power level so that the CLI 220-c experienced at UE 115-d is below a threshold.

[0101] In some examples, UE 115-c may send uplink transmission 210-c using a transmission power determined based at least on a CLI measurement of CLI 220-d. In some examples, CLI 220-c from uplink transmission 210-c experienced at UE 115-d may be reduced below a threshold or eliminated.

[0102] In some examples, similar to the methods discussed herein for UE 115-c, UE 115-d may perform reciprocity-based power control for CLI. UE 115-d may adjust the transmission power used for uplink transmission 210-d to base station 105-c based on the CLI measurement of CLI 220-c such that the CLI 220-d experienced at UE 115-c is less than a threshold.

[0103] Figure 3 An example of a time-frequency resource configuration 300 that supports power control based on reciprocity for CLI in accordance with aspects of the present disclosure is shown. In some examples, the time-frequency resource configuration 300 can implement aspects of the wireless communication system 100, the wireless communication system 200-a, and the wireless communication system 200-b. In some examples, the time-frequency resource configuration 305-a and the time-frequency resource configuration 305-b can be examples of time-frequency resource configurations for transmissions in the wireless communication system 100, the wireless communication system 200-a, and the wireless communication system 200-b. The time-frequency resource configuration 305-a can configure resources for UE 115-e. The time-frequency resource configuration 305-b can configure resources for UE 115-f. In some examples, the time-frequency resources configured by the time-frequency resource configuration 305-a may have a frequency sufficiently close to the frequency configured by the time-frequency resource configuration 305-b so that interference may occur between UE 115-e and UE 115-f.

[0104] exist Figure 3In the example, resources marked with "U" can be configured for uplink transmission, resources marked with "D" can be configured for downlink transmission, and resources marked with "F" can be configured as flexible resources, which can be uplink transmission, downlink transmission, protection band, etc.

[0105] At time period 310, UE 115-e may be configured with resources for uplink transmissions and UE 115-f may be configured with resources for downlink transmissions. UE 115-e may use a first transmission power for uplink transmissions during time period 310. The first transmission power may be high enough to cause CLI at UE 115-f. UE 115-f may experience CLI from UE 115-e during time period 310.

[0106] In some examples, after time period 310, UE 115-e may be configured with resources for downlink transmission. In some examples, at time slot 315, UE 115-e may receive a downlink transmission including an indication of CLI reciprocity and, at time slot 320, configure resources for CLI measurement.

[0107] At a second time period 325, UE 115-f may be configured with resources for uplink transmissions and UE 115-e may be configured with resources for downlink transmissions. At time slot 320, UE 115-e may measure CLI from UE 115-f. UE 115-e may determine a path loss value for a path loss between UE 115-e and UE 115-f based on the CLI measurement measured at time slot 320. UE 115-e may determine a transmit power level based on the determined path loss value for future uplink transmissions.

[0108] At the third time period 330, the UE 115-e may be configured with resources for uplink transmissions. The UE 115-e may send uplink transmissions during the third time period 330 using a transmit power level determined based on a path loss value estimated by the CLI measurement measured at the time slot 320. In some cases, the power level used by the UE 115-e for uplink transmissions in the third time period 330 may be sufficiently low to mitigate adverse effects of the CLI on the UE 115-e.

[0109] In some examples, at time slot 335, UE 115-f may receive a downlink transmission including an indication of CLI reciprocity and configure resources for CLI measurement at time slot 340. At time slot 340, UE 115-f may measure CLI from UE 115-e. UE 115-f may determine a path loss value for a path loss between UE 115-e and UE 115-f based on the CLI measurement measured at time slot 340. The UE may determine a transmit power level based on the determined path loss value for future uplink transmissions.

[0110] At a fourth time period 345, UE 115-f may be configured with resources for uplink transmissions. UE 115-f may send uplink transmissions during fourth time period 345 using a transmit power level determined based on a path loss value estimated by the CLI measurement measured at time slot 340. In some cases, the power level used by UE 115-f for uplink transmissions in fourth time period 345 may be sufficiently low to mitigate adverse effects of CLI on UE 115-e.

[0111] Figure 4 An example of a process flow 400 for supporting reciprocity-based power control for a CLI in accordance with aspects of the present disclosure is shown. In some examples, the process flow 400 may implement aspects of the wireless communication system 100, the wireless communication system 200-a, and the wireless communication system 200-b. The process flow 400 may include the UE 115-g and the UE 115-h, which may be as described with reference to Figure 1 The process flow 400 may include a base station 105-d, which may be an example of a base station 105 as described with reference to 1. The base station 105-d, the UE 115-g, and the UE 115-h may communicate to perform power control to reduce CLI reciprocity between the UE 115-g and the UE 115-h.

[0112] At 405, UE 115-g may receive, from base station 105-d, a configuration indicating interference reciprocity between a first UE and a second UE, the interference reciprocity being associated with a CLI between UE 115-g and UE 115-h. In some cases, UE 115-g may receive a configuration indicating interference reciprocity between the first UE and the second UE, the configuration comprising a first symbol and a second symbol associated with the CLI. In this case, UE 115-g may measure a path loss associated with the CLI between UE 115-g and UE 115-h in the first symbol and send at least one of the uplink messages in the second symbol.

[0113] At 410 , UE 115 - g may receive, from base station 105 - d , an indication of a configured transmit power for UE 115 - h based on a CLI between UE 115 - g and UE 115 - h .

[0114] At 415 , UE 115 - g may receive, from base station 105 - d , a configuration for resources for performing CLI measurements.

[0115] At 420, UE 115-g may receive, from UE 115-h, a CLI from an uplink transmission sent by UE 115-h.

[0116] At 425, UE 115-g may measure a path loss associated with the CLI between UE 115-g and UE 115-h based on the configured transmit power. In some examples, UE 115-g may determine a resource associated with the CLI between UE 115-g and UE 115-h based at least in part on the configuration, perform an interference measurement on the resource, and determine the path loss between UE 115-g and UE 115-h based on the interference measurement of the resource. In some examples, UE 115-g may determine a difference between the configured transmit power of the UE and the interference measurement performed on the resource. In some cases, UE 115-g may perform the interference measurement by measuring RSRP associated with UE 115-h on the resource.

[0117] In some examples, the UE 115-g may determine resources associated with the CLI of multiple other UEs. In this example, the UE 115-g may determine multiple path loss values ​​associated with the CLI between the UE and the multiple UEs based on the resources, wherein each path loss value in the multiple path loss values ​​corresponds to one UE in the multiple UEs. The UE 115-g may then determine the path loss based on the multiple path loss values. In some cases, the UE 115-g may determine the path loss value by averaging the path loss values ​​for the multiple UEs in the dB domain. In some cases, the UE 115-g may determine the path loss as an average path loss value of the multiple path loss values ​​in the linear domain, and convert the average path loss value in the linear domain to the dB domain.

[0118] In some examples, UE 115-g can identify a path loss coefficient based at least in part on the CLI and determine a transmit power based at least in part on the measured path loss and the path loss coefficient.

[0119] At 430, UE 115-g may determine a transmit power for transmission of one or more uplink messages by the first UE based on the measured path loss. In some cases, UE 115-g may determine the transmit power based on a signal type associated with the one or more uplink messages, wherein the signal type includes one of an uplink data channel, an uplink control channel, a reference signal, or a random access channel. In some cases, UE 115-g may determine the transmit power based at least in part on the measured path loss exceeding a path loss threshold by adjusting the transmit power from a first value to a second value greater than the first value. In some cases, UE 115-g may determine the transmit power based on the measured path loss being less than the path loss threshold by adjusting the transmit power from a first value to a second value less than the first value.

[0120] At 435, UE 115-g may send one or more uplink messages based on the determined transmit power.

[0121] Figure 5 An example of a process flow 500 for supporting reciprocity-based power control for a CLI in accordance with aspects of the present disclosure is shown. In some examples, the process flow 500 may implement aspects of the wireless communication system 100, the wireless communication system 200-a, and the wireless communication system 200-b. The process flow 500 may include UE 115-j and UE 115-k, which may be as described with reference to Figure 1 The process flow 500 may include a base station 105-e, which may be a reference to Figure 1 105-e, UE 115-j, and UE 115-k may communicate to perform power control to reduce CLI reciprocity between UE 115-j and UE 115-k. In some cases, UE 115-j and UE 115-k may be served by the same base station 105 (such as base station 105-e) and be in the same serving cell. In other cases, UE 115-j and UE 115-k may be served by different base stations 105 and be in different serving cells.

[0122] At 505, UE 115-j and UE 115-k may experience CLI reciprocity. At a first point in time, UE 115-j may be configured for uplink transmission, and UE 115-k may be configured for downlink transmission. At the first point in time, uplink transmission from UE 115-j may interfere with downlink transmission for UE 115-k via CLI. At a second point in time, UE 115-j may be configured for downlink transmission, and UE 115-k may be configured for uplink transmission. At the second point in time, uplink transmission from UE 115-k may interfere with downlink transmission for UE 115-j via CLI.

[0123] At 510, in some examples, base station 105-e may receive an indication of CLI from UE 115-j. Alternatively, base station 105-e may receive an indication of CLI from UE 115-k. Alternatively, base station 105-e may determine the potential for CLI between UE 115-j and UE 115-k based on the conflicting time-frequency resource configurations.

[0124] At 515, the base station 105-e may determine interference reciprocity between the UE 115-j and the UE 115-k, wherein the interference reciprocity is associated with a CLI between the UE 115-j and the UE 115-k. In some examples, the base station 105-e may determine the interference reciprocity between the UE 115-j and the UE 115-k based at least in part on an indication of the CLI sent by the UE 115-j at 510. In some other examples, the base station 105-e may determine the interference reciprocity between the UE 115-j and the UE 115-k based on the conflicting time-frequency resource configurations.

[0125] At 520, the base station 105-e may send a configuration to the UE 115-j indicating interference reciprocity between the UE 115-j and the UE 115-k. In some cases, the base station 105-e may send a set of resources associated with the CLI between the UE 115-j and the UE 115-k in the configuration. In some cases, the base station 105-e may send the configuration via radio resource control (RRC) signaling, a medium access control (MAC) control element (MAC-CE), or downlink control information (DCI).

[0126] At 525, in some examples, the base station 105-e may receive an indication of a transmit power used by the UE 115-k. If the base station 105-e is a serving base station for the UE 115-k, the UE 115-k may send the indication of the transmit power to the base station 105-e. If the base station 105-e is not a serving base station 105 for the UE 115-k, the base station 105-e may receive an indication of the transmit power of the UE 115-k from a base station 105 serving the UE 115-k for the network.

[0127] At 530, the base station 105-e may configure the transmit power for the UE 115-k based at least in part on the CLI between the UE 115-j and the UE 115-k.

[0128] At 535, the base station 105-e may send an indication of the configured transmit power for the UE 115-k to the UE 115-j. In some cases, the base station 105-e may send the indication of the configured transmit power for the second UE via RRC signaling, MAC-CE, or DCI.

[0129] Figure 6 A block diagram 600 of a device 605 supporting reciprocity-based power control for a CLI according to aspects of the present disclosure is shown. The device 605 may be an example of aspects of a UE 115 as described herein. The device 605 may include a receiver 610, a communication manager 615, and a transmitter 620. The device 605 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0130] The receiver 610 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to power control based on reciprocity for CLI, etc.). The information may be communicated to other components of the device 605. The receiver 610 may be a reference Fig. 9 Examples of various aspects of the transceiver 920 are described. The receiver 610 may utilize a single antenna or a group of antennas.

[0131] The communication manager 615 may perform the following operations: receiving from a base station a configuration indicating interference reciprocity between a first UE and a second UE, the interference reciprocity being associated with a CLI between the first UE and the second UE; receiving from a base station an indication of a configured transmit power for a second UE based on the CLI between the first UE and the second UE; measuring a path loss associated with the CLI between the first UE and the second UE based on the configured transmit power; determining a transmit power for transmission of one or more uplink messages by the first UE based on the measured path loss; and sending one or more uplink messages according to the determined transmit power. The communication manager 615 may be an example of aspects of the communication manager 910 described herein.

[0132] The communication manager 615 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 615 or its subcomponents may be performed by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0133] The communication manager 615 or its subcomponents may be physically located at various locations, including being distributed so that portions of the functions are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 615 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 615 or its subcomponents may be combined with one or more other hardware components (including, but not limited to, input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in the present disclosure, or combinations thereof).

[0134] The transmitter 620 can transmit signals generated by other components of the device 605. In some examples, the transmitter 620 can be co-located with the receiver 610 in a transceiver module. For example, the transmitter 620 can be a reference Fig. 9 Examples of aspects of the transceiver 920 are described. The transmitter 620 may utilize a single antenna or a group of antennas.

[0135] In some examples, the communication manager 615 can be implemented as an integrated circuit or chipset for a mobile device modem, and the receiver 610 and transmitter 620 can be implemented as analog components (e.g., amplifiers, filters, antennas) coupled to the mobile device modem to enable wireless transmission and reception on one or more frequency bands.

[0136] The communication manager 615 described herein may be implemented to achieve one or more potential advantages. One implementation may allow the device 605 to reduce CLI sent between the device 605 and one or more other wireless communication devices. Based on techniques for reducing CLI between the device 605 and one or more other wireless communication devices, the device 605 may support the other wireless communication devices experiencing reduced CLI from uplink transmissions from the device 605.

[0137] Thus, device 605 can reduce the likelihood of performance degradation due to CLI, and therefore, can communicate with a greater likelihood of successful communication. In some examples, based on the greater likelihood of successful communication, device 605 can more efficiently power a processor or one or more processing units associated with sending and receiving communications, which can enable the device to save power, increase battery life, and increase communication speeds.

[0138] Figure 7 A block diagram 700 of a device 705 supporting reciprocity-based power control for a CLI according to aspects of the present disclosure is shown. The device 705 may be an example of aspects of the device 605 or UE 115 as described herein. The device 705 may include a receiver 710, a communication manager 715, and a transmitter 745. The device 705 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0139] The receiver 710 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to power control based on reciprocity for CLI, etc.). The information may be communicated to other components of the device 705. The receiver 710 may be a reference Fig. 9 Examples of various aspects of the transceiver 920 are described. The receiver 710 may utilize a single antenna or a group of antennas.

[0140] The communication manager 715 may be an example of aspects of the communication manager 615 as described herein. The communication manager 715 may include an interference configuration receiver 720, a transmit power receiver 725, a path loss measurement component 730, a transmit power controller 735, and an uplink transmitter 740. The communication manager 715 may be an example of aspects of the communication manager 910 described herein.

[0141] The interference configuration receiver 720 may receive a configuration indicating interference reciprocity between the first UE and the second UE from the base station, the interference reciprocity being associated with the CLI between the first UE and the second UE.

[0142] The transmit power receiver 725 may receive, from the base station, an indication of a configured transmit power for the second UE based on the CLI between the first UE and the second UE.

[0143] Path loss measuring component 730 can measure a path loss associated with a CLI between a first UE and a second UE based on a configured transmit power.

[0144] The transmit power controller 735 may determine a transmit power for transmission of one or more uplink messages by the first UE based on the measured path loss.

[0145] The uplink transmitter 740 may transmit one or more uplink messages according to the determined transmit power.

[0146] The transmitter 745 can transmit signals generated by other components of the device 705. In some examples, the transmitter 745 can be co-located with the receiver 710 in a transceiver module. For example, the transmitter 745 can be a reference Fig. 9 Examples of various aspects of the transceiver 920 are described. The transmitter 745 may utilize a single antenna or a group of antennas.

[0147] Figure 8 A block diagram 800 of a communication manager 805 supporting reciprocity based power control for CLI in accordance with aspects of the present disclosure is shown. The communication manager 805 may be an example of aspects of the communication manager 615, the communication manager 715, or the communication manager 910 described herein. The communication manager 805 may include an interference configuration receiver 810, a transmit power receiver 815, a path loss measurement component 820, a transmit power controller 825, an uplink transmitter 830, a CLI resource component 835, an interference measurement component 840, a path loss component 845, a multiple CLI resource component 850, a multiple path loss component 855, a path loss aggregation component 860, and a path loss coefficient component 865. Each of these modules may be in communication with each other directly or indirectly (e.g., via one or more buses).

[0148] The interference configuration receiver 810 may receive a configuration indicating interference reciprocity between the first UE and the second UE from a base station, the interference reciprocity being associated with a CLI between the first UE and the second UE.

[0149] The transmit power receiver 815 may receive, from the base station, an indication of a configured transmit power for the second UE based on the CLI between the first UE and the second UE.

[0150] Path loss measuring component 820 can measure a path loss associated with a CLI between a first UE and a second UE based on a configured transmit power.

[0151] In some examples, path loss measurement component 820 can measure path loss associated with the CLI between the first UE and the first UE in the first symbol.

[0152] The transmit power controller 825 may determine a transmit power for transmission of one or more uplink messages by the first UE based on the measured path loss.

[0153] In some examples, the transmit power controller 825 can determine the transmit power based on the measured path loss and the path loss coefficient.

[0154] In some examples, the transmit power is determined based on a signal type associated with one or more uplink messages, where the signal type includes one of an uplink data channel, an uplink control channel, a reference signal, or a random access channel.

[0155] In some examples, the transmit power controller 825 can adjust the transmit power from a first value to a second value greater than the first value based on the measured path loss exceeding a path loss threshold.

[0156] In some examples, the transmit power controller 825 can adjust the transmit power from a first value to a second value less than the first value based on the measured path loss being below a path loss threshold.

[0157] The uplink transmitter 830 may transmit one or more uplink messages according to the determined transmit power.

[0158] In some examples, the uplink transmitter 830 may send at least one uplink message of the one or more uplink messages in the second symbol.

[0159] The CLI resource component 835 may determine resources associated with the CLI between the first UE and the second UE based on the configuration.

[0160] Interference measuring component 840 can perform interference measurements on the resources.

[0161] In some examples, interference measuring component 840 can measure RSRP associated with the second UE on the resource.

[0162] In some cases, interference measurements are performed using the same spatial filter used for transmission of one or more uplink messages.

[0163] Path loss component 845 can determine a path loss between the first UE and the second UE based on interference measurements on the resources.

[0164] In some examples, path loss component 845 can determine a difference between the UE's configured transmit power and interference measurements performed on the resources.

[0165] The multi-CLI resource component 850 can determine resources associated with the CLI between the UE and multiple UEs.

[0166] The multi-path loss component 855 can determine, based on the resources, a plurality of path loss values ​​associated with the CLI between the UE and the plurality of UEs, wherein each path loss value of the plurality of path loss values ​​corresponds to a respective one of the plurality of UEs.

[0167] Path loss aggregation component 860 can determine a path loss based on a plurality of path loss values.

[0168] In some examples, path loss aggregation component 860 can determine the path loss as a minimum path loss value among a plurality of path loss values.

[0169] In some examples, path loss aggregation component 860 can determine the path loss as an average path loss value among a plurality of path loss values ​​in the dB domain.

[0170] In some examples, path loss aggregation component 860 can determine the path loss as an average path loss value of a plurality of path loss values ​​in a linear domain.

[0171] In some examples, path loss aggregation component 860 can convert an average path loss value of multiple path loss values ​​in the linear domain to the dB domain.

[0172] A path loss coefficient component 865 can identify a path loss coefficient based on the CLI.

[0173] Fig. 9A diagram of a system 900 including a device 905 supporting reciprocity based power control for a CLI in accordance with aspects of the present disclosure is shown. The device 905 may be an example of or include a component of a device 605, a device 705, or a UE 115 as described herein. The device 905 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 910, an I / O controller 915, a transceiver 920, an antenna 925, a memory 930, and a processor 940. These components may be in electronic communication via one or more buses (e.g., a bus 945).

[0174] The communication manager 910 can perform the following operations: receive a configuration for indicating interference reciprocity between a first UE and a second UE from a base station, the interference reciprocity being associated with a CLI between the first UE and the second UE; receive an indication of a configured transmit power for the second UE based on the CLI between the first UE and the second UE from the base station; measure a path loss associated with the CLI between the first UE and the second UE based on the configured transmit power; determine a transmit power for transmission of one or more uplink messages by the first UE based on the measured path loss; and send one or more uplink messages according to the determined transmit power.

[0175] I / O controller 915 can manage input and output signals for device 905. I / O controller 915 can also manage peripheral devices that are not integrated into device 905. In some cases, I / O controller 915 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 915 can utilize a computer such as a , or another known operating system. In other cases, I / O controller 915 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 915 may be implemented as part of a processor. In some cases, a user may interact with device 905 via I / O controller 915 or via hardware components controlled by I / O controller 915.

[0176] The transceiver 920 may communicate bidirectionally via one or more antennas, wired or wireless links as described herein. For example, the transceiver 920 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 920 may also include a modem for modulating packets and providing the modulated packets to an antenna for transmission, and demodulating packets received from an antenna.

[0177] In some cases, a wireless device may include a single antenna 925. However, in some cases, the device may have more than one antenna 925 that are capable of sending or receiving multiple wireless transmissions simultaneously.

[0178] The memory 930 may include random access memory (RAM) and read-only memory (ROM). The memory 930 may store computer-readable, computer-executable code 935, which includes instructions that, when executed, cause the processor to perform various functions described herein. In some cases, the memory 930 may also contain, among other things, a basic input / output system (BIOS), which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0179] The processor 940 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a central processing unit (CPU), a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 940 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 940. The processor 940 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 930) to cause the device 905 to perform various functions (e.g., functions or tasks that support power control based on reciprocity for a CLI).

[0180] The code 935 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 935 may be stored in a non-transitory computer-readable medium (e.g., a system memory or other type of memory). In some cases, the code 935 may not be directly executable by the processor 940, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0181] Fig.10 A block diagram 1000 of a device 1005 supporting reciprocity-based power control for a CLI according to aspects of the present disclosure is shown. The device 1005 may be an example of aspects of a base station 105 as described herein. The device 1005 may include a receiver 1010, a communication manager 1015, and a transmitter 1020. The device 1005 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0182] The receiver 1010 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to power control based on reciprocity for CLI, etc.). The information may be communicated to other components of the device 1005. The receiver 1010 may be a reference Fig.13 Examples of various aspects of the transceiver 1320 are described. The receiver 1010 may utilize a single antenna or a group of antennas.

[0183] The communication manager 1015 may perform the following operations: determining interference reciprocity between the first UE and the second UE, the interference reciprocity being associated with the CLI between the first UE and the second UE; sending a configuration indicating the interference reciprocity between the first UE and the second UE to the first UE; configuring a transmit power for the second UE based on the CLI; and sending an indication of the configured transmit power for the second UE to the first UE. The communication manager 1015 may be an example of aspects of the communication manager 1310 described herein.

[0184] The communication manager 1015 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 1015 or its subcomponents may be performed by a general purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0185] The communication manager 1015 or its subcomponents may be physically located at various locations, including being distributed so that portions of the functions are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 1015 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 1015 or its subcomponents may be combined with one or more other hardware components (including, but not limited to, input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in the present disclosure, or combinations thereof).

[0186] The transmitter 1020 can transmit signals generated by other components of the device 1005. In some examples, the transmitter 1020 can be co-located with the receiver 1010 in a transceiver module. For example, the transmitter 1020 can be a reference Fig.13 Examples of various aspects of the transceiver 1320 are described. The transmitter 1020 may utilize a single antenna or a group of antennas.

[0187] Fig.11 A block diagram 1100 of a device 1105 supporting reciprocity-based power control for a CLI according to aspects of the present disclosure is shown. The device 1105 may be an example of aspects of the device 1005 or base station 105 as described herein. The device 1105 may include a receiver 1110, a communication manager 1115, and a transmitter 1140. The device 1105 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0188] The receiver 1110 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to power control based on reciprocity for CLI, etc.). The information may be communicated to other components of the device 1105. The receiver 1110 may be a reference Fig.13 Examples of various aspects of the transceiver 1320 are described. The receiver 1110 may utilize a single antenna or a group of antennas.

[0189] The communication manager 1115 can be an example of aspects of the communication manager 1015 as described herein. The communication manager 1115 can include an interference reciprocity component 1120, a configuration transmission component 1125, a transmit power component 1130, and a transmit power indication controller 1135. The communication manager 1115 can be an example of aspects of the communication manager 1310 described herein.

[0190] The interference reciprocity component 1120 can determine interference reciprocity between the first UE and the second UE, the interference reciprocity being associated with the CLI between the first UE and the second UE.

[0191] The configuration transmission component 1125 can transmit, to the first UE, a configuration indicating interference reciprocity between the first UE and the second UE.

[0192] The transmit power component 1130 can configure the transmit power for the second UE based on the CLI.

[0193] The transmit power indication controller 1135 may send an indication of the configured transmit power for the second UE to the first UE.

[0194] The transmitter 1140 may transmit signals generated by other components of the device 1105. In some examples, the transmitter 1140 may be co-located with the receiver 1110 in a transceiver module. Fig.13 Examples of various aspects of the transceiver 1320 are described. The transmitter 1140 may utilize a single antenna or a group of antennas.

[0195] Fig.12A block diagram 1200 of a communication manager 1205 supporting reciprocity based power control for CLI in accordance with aspects of the present disclosure is shown. The communication manager 1205 can be an example of aspects of the communication manager 1015, the communication manager 1115, or the communication manager 1310 described herein. The communication manager 1205 can include an interference reciprocity component 1210, a configuration transmit component 1215, a transmit power component 1220, a transmit power indication controller 1225, a CLI resource controller 1230, a configuration transmitter 1235, and a power indication component 1240. Each of these modules can communicate with each other directly or indirectly (e.g., via one or more buses).

[0196] The interference reciprocity component 1210 can determine interference reciprocity between a first UE and a second UE, the interference reciprocity being associated with a CLI between the first UE and the second UE.

[0197] The configuration transmission component 1215 can send a configuration to the first UE indicating interference reciprocity between the first UE and the second UE.

[0198] The transmit power component 1220 can configure the transmit power for the second UE based on the CLI.

[0199] The transmit power indication controller 1225 may send an indication of the configured transmit power for the second UE to the first UE.

[0200] The CLI resource controller 1230 may send a resource set associated with the CLI between the first UE and the second UE in the configuration.

[0201] The configuration transmitter 1235 may send the configuration via RRC signaling, MAC-CE, or DCI.

[0202] The power indicating component 1240 may send an indication of the configured transmit power for the second UE via RRC signaling, MAC-CE, or DCI.

[0203] Fig.13A diagram of a system 1300 including a device 1305 supporting reciprocity based power control for a CLI in accordance with aspects of the present disclosure is shown. The device 1305 may be an example of or include components of a device 1005, a device 1105, or a base station 105 as described herein. The device 1305 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communications manager 1310, a network communications manager 1315, a transceiver 1320, an antenna 1325, a memory 1330, a processor 1340, and an inter-station communications manager 1345. These components may be in electronic communication via one or more buses (e.g., a bus 1350).

[0204] The communication manager 1310 can perform the following operations: determine the interference reciprocity between the first UE and the second UE, the interference reciprocity is associated with the CLI between the first UE and the second UE; send a configuration indicating the interference reciprocity between the first UE and the second UE to the first UE; configure the transmit power for the second UE based on the CLI; and send an indication of the configured transmit power for the second UE to the first UE.

[0205] The network communications manager 1315 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1315 may manage the transmission of data communications for client devices (eg, one or more UEs 115).

[0206] The transceiver 1320 may communicate bidirectionally via one or more antennas, wired or wireless links as described herein. For example, the transceiver 1320 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1320 may also include a modem for modulating packets and providing the modulated packets to an antenna for transmission, and demodulating packets received from an antenna.

[0207] In some cases, a wireless device may include a single antenna 1325. However, in some cases, the device may have more than one antenna 1325 that are capable of sending or receiving multiple wireless transmissions simultaneously.

[0208] Memory 1330 may include RAM, ROM, or a combination thereof. Memory 1330 may store computer readable code 1335, which includes instructions that, when executed by a processor (e.g., processor 1340), cause the device to perform various functions described herein. In some cases, memory 1330 may also contain, among other things, BIOS, which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0209] Processor 1340 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1340 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1340. Processor 1340 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1330) to cause device 1305 to perform various functions (e.g., functions or tasks that support power control based on reciprocity for CLI).

[0210] The inter-site communication manager 1345 can manage communications with other base stations 105 and can include a controller or scheduler for controlling communications with UE 115 in cooperation with other base stations 105. For example, the inter-site communication manager 1345 can coordinate the scheduling of transmissions to UE 115 to implement various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-site communication manager 1345 can provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0211] The code 1335 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1335 may be stored in a non-transitory computer-readable medium (e.g., system memory or other types of memory). In some cases, the code 1335 may not be directly executable by the processor 1340, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0212] Fig.14 A flow chart illustrating a method 1400 for supporting power control based on reciprocity for CLI according to aspects of the present disclosure is shown. The operations of the method 1400 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1400 may be implemented by a UE 115 or a component thereof as described with reference to Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional units of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described herein.

[0213] At 1405, the UE may receive a configuration indicating interference reciprocity between the first UE and the second UE from the base station, the interference reciprocity being associated with the CLI between the first UE and the second UE. The operations of 1405 may be performed according to the methods described herein. In some examples, aspects of the operations of 1405 may be performed as described with reference to Figures 6 to 9 The interference configuration described is performed by the receiver.

[0214] At 1410, the UE may receive from the base station an indication of a configured transmit power of the second UE based on the CLI between the first UE and the second UE. The operations of 1410 may be performed according to the methods described herein. In some examples, aspects of the operations of 1410 may be performed as described with reference to Figures 6 to 9 The transmit power receiver described is implemented.

[0215] At 1415, the UE may measure a path loss associated with a CLI between the first UE and the second UE based on the configured transmit power. The operations of 1415 may be performed according to the methods described herein. In some examples, aspects of the operations of 1415 may be performed as described with reference to Figures 6 to 9 The path loss measurement component described is performed.

[0216] At 1420, the UE may determine a transmit power for transmission of one or more uplink messages by the first UE based on the measured path loss. The operations of 1420 may be performed according to the methods described herein. In some examples, aspects of the operations of 1420 may be performed as described with reference to Figures 6 to 9 The transmit power controller described is implemented.

[0217] At 1425, the UE may send one or more uplink messages according to the determined transmit power. The operations of 1425 may be performed according to the methods described herein. In some examples, aspects of the operations of 1425 may be described with reference to Figures 6 to 9 The uplink transmitter described is performed.

[0218] Fig.15 A flow chart illustrating a method 1500 for supporting power control based on reciprocity for CLI according to aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1500 may be implemented by a UE 115 or a component thereof as described herein. Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional units of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described herein.

[0219] At 1505, the UE may receive from a base station a configuration indicating interference reciprocity between a first UE and a second UE, the interference reciprocity being associated with a CLI between the first UE and the second UE. The operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be performed as described with reference to Figures 6 to 9 The interference configuration described is performed by the receiver.

[0220] At 1510, the UE may receive from the base station an indication of a configured transmit power for the second UE based on a CLI between the first UE and the second UE. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be as described with reference to Figures 6 to 9 The transmit power receiver described is implemented.

[0221] At 1515, the UE may determine resources associated with the CLI between the first UE and the second UE based on the configuration. The operations of 1515 may be performed according to the methods described herein. In some examples, aspects of the operations of 1515 may be as described with reference to Figures 6 to 9 Describes the CLI resource component to execute.

[0222] At 1520, the UE may perform interference measurements on the resources. The operations of 1520 may be performed according to the methods described herein. In some examples, aspects of the operations of 1520 may be as described with reference to Figures 6 to 9 The interference measurement components described are performed.

[0223] At 1525, the UE may measure a path loss associated with a CLI between the first UE and the second UE based on the configured transmit power. The operations of 1525 may be performed according to the methods described herein. In some examples, aspects of the operations of 1525 may be as described with reference to Figures 6 to 9 The path loss measurement component described is performed.

[0224] At 1530, the UE may determine a path loss between the first UE and the second UE based on interference measurements on the resources. The operations of 1530 may be performed according to methods described herein. In some examples, aspects of the operations of 1530 may be performed as described with reference to Figures 6 to 9 The path loss component described is performed.

[0225] At 1535, the UE may determine a transmit power for transmission of one or more uplink messages by the first UE based on the measured path loss. The operations of 1535 may be performed according to the methods described herein. In some examples, aspects of the operations of 1535 may be as described with reference to Figures 6 to 9 The transmit power controller described is implemented.

[0226] At 1540, the UE may send one or more uplink messages according to the determined transmit power. The operations of 1540 may be performed according to the methods described herein. In some examples, aspects of the operations of 1540 may be described with reference to Figures 6 to 9 The uplink transmitter described is performed.

[0227] Fig.16 A flow chart illustrating a method 1600 for supporting power control based on reciprocity for CLI according to aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1600 may be implemented by a UE 115 or a component thereof as described herein. Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional units of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described herein.

[0228] At 1605, the UE may receive from the base station a configuration indicating interference reciprocity between the first UE and the second UE, the interference reciprocity being associated with the CLI between the first UE and the second UE. The operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be performed as described with reference to Figures 6 to 9 The interference configuration described is performed by the receiver.

[0229] At 1610, the UE may receive from the base station an indication of a configured transmit power for the second UE based on the CLI between the first UE and the second UE. The operations of 1610 may be performed according to the methods described herein. In some examples, aspects of the operations of 1610 may be as described with reference to Figures 6 to 9 The transmit power receiver described is implemented.

[0230] At 1615, the UE may determine resources associated with a CLI between the UE and the plurality of UEs. The operations of 1615 may be performed according to methods described herein. In some examples, aspects of the operations of 1615 may be as described with reference to Figures 6 to 9 Describes the multiple CLI resource components to execute.

[0231] At 1620, the UE may measure a path loss associated with a CLI between the first UE and the second UE based on the configured transmit power. The operations of 1620 may be performed according to the methods described herein. In some examples, aspects of the operations of 1620 may be as described with reference to Figures 6 to 9 The path loss measurement component described is performed.

[0232] At 1625, the UE may determine, based on the resource, a plurality of path loss values ​​associated with a CLI between the UE and a plurality of UEs, wherein each of the plurality of path loss values ​​corresponds to a respective one of the plurality of UEs. The operations of 1625 may be performed according to methods described herein. In some examples, aspects of the operations of 1625 may be performed as described with reference to Figures 6 to 9 The multipath loss components described are implemented.

[0233] At 1630, the UE may determine a path loss based on the plurality of path loss values. The operations of 1630 may be performed according to methods described herein. In some examples, aspects of the operations of 1630 may be as described with reference to Figures 6 to 9 The path loss aggregation component described is performed.

[0234] At 1635, the UE may determine a transmit power for transmission of one or more uplink messages by the first UE based on the measured path loss. The operations of 1635 may be performed according to the methods described herein. In some examples, aspects of the operations of 1635 may be as described with reference to Figures 6 to 9 The transmit power controller described is implemented.

[0235] At 1640, the UE may send one or more uplink messages according to the determined transmit power. The operations of 1640 may be performed according to the methods described herein. In some examples, aspects of the operations of 1640 may be as described with reference to Figures 6 to 9 The uplink transmitter described is performed.

[0236] Fig.17 A flow chart illustrating a method 1700 for supporting power control based on reciprocity for CLI according to aspects of the present disclosure is shown. The operations of the method 1700 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 1700 may be implemented by a base station 105 or components thereof as described herein. Figures 10 to 13 In some examples, the base station may execute an instruction set to control the functional units of the base station to perform the functions described herein. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described herein.

[0237] At 1705, the base station may determine interference reciprocity between the first UE and the second UE, the interference reciprocity being associated with the CLI between the first UE and the second UE. The operations of 1705 may be performed according to the methods described herein. In some examples, aspects of the operations of 1705 may be performed as described with reference to Figures 10 to 13 The interference reciprocity components described are implemented.

[0238] At 1710, the base station may send a configuration to the first UE indicating interference reciprocity between the first UE and the second UE. The operations of 1710 may be performed according to the methods described herein. In some examples, aspects of the operations of 1710 may be as described with reference to Figures 10 to 13 Describes the configuration of the transport component to perform.

[0239] At 1715, the base station may configure the transmit power for the second UE based on the CLI. The operations of 1715 may be performed according to the methods described herein. In some examples, aspects of the operations of 1715 may be described with reference to Figures 10 to 13 The transmit power components described are performed.

[0240] At 1720, the base station may send an indication of the configured transmit power for the second UE to the first UE. The operations of 1720 may be performed according to the methods described herein. In some examples, aspects of the operations of 1720 may be as described with reference to Figures 10 to 13 The transmit power indication controller is described to perform.

[0241] Fig.18 A flow chart illustrating a method 1800 for supporting power control based on reciprocity for CLI according to aspects of the present disclosure is shown. The operations of the method 1800 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 1800 may be implemented by a base station 105 or components thereof as described herein. Figures 10 to 13 In some examples, the base station may execute an instruction set to control the functional units of the base station to perform the functions described herein. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described herein.

[0242] At 1805, the base station may determine interference reciprocity between the first UE and the second UE, the interference reciprocity being associated with the CLI between the first UE and the second UE. The operations of 1805 may be performed according to the methods described herein. In some examples, aspects of the operations of 1805 may be performed as described with reference to Figures 10 to 13 The interference reciprocity components described are implemented.

[0243] At 1810, the base station may send a configuration to the first UE indicating interference reciprocity between the first UE and the second UE. The operations of 1810 may be performed according to the methods described herein. In some examples, aspects of the operations of 1810 may be performed as described with reference to Figures 10 to 13 Describes the configuration of the transport component to perform.

[0244] At 1815, the base station may send a resource set associated with a CLI between the first UE and the second UE in a configuration. The operations of 1815 may be performed according to the methods described herein. In some examples, aspects of the operations of 1815 may be as described with reference to Figures 10 to 13 Describes the CLI resource controller to execute.

[0245] At 1820, the base station may configure the transmit power for the second UE based on the CLI. The operations of 1820 may be performed according to the methods described herein. In some examples, aspects of the operations of 1820 may be as described with reference to Figures 10 to 13 The transmit power components described are performed.

[0246] At 1825, the base station may send an indication of the configured transmit power for the second UE to the first UE. The operations of 1825 may be performed according to the methods described herein. In some examples, aspects of the operations of 1825 may be as described with reference to Figures 10 to 13 The transmit power indication controller is described to perform.

[0247] It should be noted that the methods described herein describe possible implementations, and operations and steps may be rearranged or modified, and other implementations are also possible. In addition, aspects of two or more methods from these methods may be combined.

[0248] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein may be applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0249] The information and signals described herein may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0250] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or executed using a general purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration).

[0251] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted by a computer-readable medium as one or more instructions or codes. Other examples and implementations are within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these items. Features that implement the functions may also be physically located at various locations, including being distributed so that portions of the functions are implemented at different physical locations.

[0252] Computer readable medium includes both non-transitory computer storage medium and communication medium, and communication medium includes any medium that promotes the transmission of computer program from one place to another place.Non-transitory storage medium can be any available medium that can be accessed by general-purpose computer or special-purpose computer.By way of example and not limitation, non-transitory computer readable medium can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, disk storage or other magnetic storage device, or can be used for carrying or storing desired program code unit and can be accessed by general-purpose or special-purpose computer or general-purpose or special-purpose processor in the form of instruction or data structure.In addition, any connection is appropriately referred to as computer readable medium.For example, if software is to send from website, server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are included in the definition of computer readable medium. As used herein, disk and disc include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, wherein disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0253] As used herein (including in the claims), "or" as used in a list of items (e.g., a list of items ending with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). In addition, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, an example step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0254] In the accompanying drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number, the second reference number being used to distinguish between similar components. If only the first reference number is used in the specification, the description applies to any of the similar components having the same first reference number, without regard to the second reference number or other subsequent reference numbers.

[0255] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that may be implemented or within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration," rather than "preferred" or "advantageous over other examples." For the purpose of providing an understanding of the described techniques, the detailed description includes specific details. However, these techniques may be implemented without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0256] The description herein is provided to enable one of ordinary skill in the art to implement or use the present disclosure. Various modifications to the present disclosure will be apparent to one of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but is given the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a first user equipment (UE), comprising: receiving, from a base station, a configuration of interference reciprocity, the configuration of interference reciprocity indicating that cross-link interference between the first UE and the second UE is reciprocal; receiving, from the base station, an indication of a configured transmit power for the second UE based at least in part on the reciprocal cross-link interference between the first UE and the second UE; measuring a path loss associated with the cross-link interference between the first UE and the second UE based at least in part on the configured transmit power; determining, based at least in part on the measured path loss, a transmit power for transmission of one or more uplink messages by the first UE for reciprocal cross-link interference; as well as The one or more uplink messages are sent according to the determined transmit power.

2. The method according to claim 1, further comprising: determining, based at least in part on the configuration, resources associated with the cross-link interference between the first UE and the second UE; performing interference measurements on the resources; and The path loss between the first UE and the second UE is determined based at least in part on the interference measurement on the resources.

3. The method according to claim 2, wherein: Determining the path loss includes: A difference between the configured transmit power of the second UE and the interference measurement performed on the resources is determined.

4. The method according to claim 2, wherein: Performing the interference measurement includes: A reference signal received power (RSRP) associated with the second UE is measured on the resources.

5. The method according to claim 2, wherein: The interference measurement is performed using the same spatial filter used for transmission of the one or more uplink messages.

6. The method according to claim 1, further comprising: determining resources associated with cross-link interference between the first UE and a plurality of UEs; determining, based at least in part on the resources, a plurality of path loss values ​​associated with the cross-link interference between the first UE and the plurality of UEs, wherein each path loss value of the plurality of path loss values ​​corresponds to a respective one of the plurality of UEs; and The path loss is determined based at least in part on the plurality of path loss values.

7. The method according to claim 6, wherein: Determining the path loss includes: The path loss is determined as a minimum path loss value among the plurality of path loss values.

8. The method according to claim 6, wherein: Determining the path loss includes: The path loss is determined as an average path loss value of the plurality of path loss values ​​in a decibel meter domain.

9. The method according to claim 6, wherein: Determining the path loss includes: determining the path loss as an average path loss value of the plurality of path loss values ​​in a linear domain; and The average path loss value of the plurality of path loss values ​​in the linear domain is converted to a decibel meter domain.

10. The method according to claim 1, further comprising: identifying a path loss coefficient based at least in part on the cross-link interference; as well as The transmit power is determined based at least in part on the measured path loss and the path loss coefficient.

11. The method according to claim 1, wherein: Determining the transmit power includes: The transmit power is determined based at least in part on a signal type associated with the one or more uplink messages, wherein the signal type comprises one of an uplink data channel, an uplink control channel, a reference signal, or a random access channel.

12. The method according to claim 1, wherein: Determining the transmit power includes: The transmit power is adjusted from a first value to a second value greater than the first value based at least in part on the measured path loss exceeding a path loss threshold.

13. The method according to claim 1, wherein: Determining the transmit power includes: The transmit power is adjusted from a first value to a second value less than the first value based at least in part on the measured path loss being below a path loss threshold.

14. The method according to claim 1, wherein: The configuration of interference reciprocity includes a first symbol and a second symbol associated with the cross-link interference, the method further comprising: measuring the path loss associated with the cross-link interference between the first UE and the second UE in the first symbol; and At least one uplink message of the one or more uplink messages is sent in the second symbol.

15. A method for wireless communication at a base station, comprising: determining an interference reciprocity between a first user equipment (UE) and a second UE, the interference reciprocity being associated with a cross-link interference between the first UE and the second UE; sending a configuration of interference reciprocity to the first UE, the configuration of interference reciprocity indicating that the cross-link interference between the first UE and the second UE is reciprocal; configuring a transmit power for the second UE based at least in part on the reciprocal cross-link interference; sending, to the first UE, an indication of the configured transmit power for the second UE; as well as One or more uplink messages are received from the first UE, wherein the one or more uplink messages are based at least in part on a configured transmit power for the second UE for the reciprocal cross-link interference.

16. The method according to claim 15, further comprising: A set of resources associated with the cross-link interference between the first UE and the second UE is sent in the configuration.

17. The method according to claim 15, further comprising: The configuration is sent via radio resource control (RRC) signaling, medium access control (MAC) control element (MAC-CE), or downlink control information.

18. The method according to claim 15, further comprising: The indication of the configured transmit power for the second UE is sent via radio resource control (RRC) signaling, medium access control (MAC) control element (MAC-CE), or downlink control information.

19. An apparatus for wireless communication at a first user equipment (UE), comprising: processor, a memory coupled to the processor; as well as Instructions, which are stored in the memory and executable by the processor to cause the device to perform the following operations: receiving, from a base station, a configuration of interference reciprocity, the configuration of interference reciprocity indicating that cross-link interference between the first UE and the second UE is reciprocal; receiving, from the base station, an indication of a configured transmit power for the second UE based at least in part on the reciprocal cross-link interference between the first UE and the second UE; measuring a path loss associated with the cross-link interference between the first UE and the second UE based at least in part on the configured transmit power; determining, based at least in part on the measured path loss, a transmit power for transmission of one or more uplink messages by the first UE for reciprocal cross-link interference; as well as The one or more uplink messages are sent according to the determined transmit power.

20. The apparatus of claim 19, wherein the instructions are further executable by the processor to cause the apparatus to: determining, based at least in part on the configuration, resources associated with the cross-link interference between the first UE and the second UE; performing interference measurements on the resources; and The path loss between the first UE and the second UE is determined based at least in part on the interference measurement on the resources.

21. The device according to claim 20, wherein: The instructions are executable by the processor to cause the apparatus to determine the path loss by: A difference between the configured transmit power of the second UE and the interference measurement performed on the resources is determined.

22. The device according to claim 20, wherein: The instructions are executable by the processor to cause the apparatus to perform the interference measurement by: A reference signal received power (RSRP) associated with the second UE is measured on the resources.

23. The device according to claim 20, wherein: The interference measurement is performed using the same spatial filter used for transmission of the one or more uplink messages.

24. The apparatus of claim 19, wherein the instructions are further executable by the processor to cause the apparatus to: determining resources associated with cross-link interference between the first UE and a plurality of UEs; determining a plurality of path loss values ​​associated with the cross-link interference between the first UE and the plurality of UEs based at least in part on the resources, wherein: Each of the plurality of path loss values ​​corresponds to a respective one of the plurality of UEs; and The path loss is determined based at least in part on the plurality of path loss values.

25. The device according to claim 24, wherein: The instructions are executable by the processor to cause the apparatus to determine the path loss by: The path loss is determined as a minimum path loss value among the plurality of path loss values.

26. The device according to claim 24, wherein: The instructions are executable by the processor to cause the apparatus to determine the path loss by: The path loss is determined as an average path loss value of the plurality of path loss values ​​in a decibel meter domain.

27. The device according to claim 24, wherein: The instructions are executable by the processor to cause the apparatus to determine the path loss by: determining the path loss as an average path loss value of the plurality of path loss values ​​in a linear domain; as well as The average path loss value of the plurality of path loss values ​​in the linear domain is converted to a decibel meter domain.

28. The apparatus of claim 19, wherein the instructions are further executable by the processor to cause the apparatus to: identifying a path loss coefficient based at least in part on the cross-link interference; and The transmit power is determined based at least in part on the measured path loss and the path loss coefficient.

29. The device according to claim 19, wherein The instructions are executable by the processor to cause the device to determine the transmit power by: The transmit power is determined based at least in part on a signal type associated with the one or more uplink messages, wherein the signal type comprises one of an uplink data channel, an uplink control channel, a reference signal, or a random access channel.

30. The device according to claim 19, wherein The instructions are executable by the processor to cause the device to determine the transmit power by: The transmit power is adjusted from a first value to a second value greater than the first value based at least in part on the measured path loss exceeding a path loss threshold.

31. The device according to claim 19, wherein: The instructions are executable by the processor to cause the device to determine the transmit power by: The transmit power is adjusted from a first value to a second value less than the first value based at least in part on the measured path loss being below a path loss threshold.

32. The apparatus of claim 19, wherein: The configuration of interference reciprocity includes a first symbol and a second symbol associated with the cross-link interference, and wherein the instructions are further executable by the processor to cause the apparatus to: measuring the path loss associated with the cross-link interference between the first UE and the second UE in the first symbol; and At least one uplink message of the one or more uplink messages is sent in the second symbol.

33. An apparatus for wireless communication at a base station, comprising: processor, a memory coupled to the processor; as well as Instructions, which are stored in the memory and executable by the processor to cause the device to perform the following operations: determining an interference reciprocity between a first user equipment (UE) and a second UE, the interference reciprocity being associated with a cross-link interference between the first UE and the second UE; sending a configuration of interference reciprocity to the first UE, the configuration of interference reciprocity indicating that the cross-link interference between the first UE and the second UE is reciprocal; configuring a transmit power for the second UE based at least in part on the reciprocal cross-link interference; sending, to the first UE, an indication of the configured transmit power for the second UE; as well as One or more uplink messages are received from the first UE, wherein the one or more uplink messages are based at least in part on a configured transmit power for the second UE for the reciprocal cross-link interference.

34. The apparatus of claim 33, wherein the instructions are further executable by the processor to cause the apparatus to: A set of resources associated with the cross-link interference between the first UE and the second UE is sent in the configuration.

35. The apparatus of claim 33, wherein the instructions are further executable by the processor to cause the apparatus to: The configuration is sent via radio resource control (RRC) signaling, medium access control (MAC) control element (MAC-CE), or downlink control information.

36. The apparatus of claim 33, wherein the instructions are further executable by the processor to cause the apparatus to: The indication of the configured transmit power for the second UE is sent via radio resource control (RRC) signaling, medium access control (MAC) control element (MAC-CE), or downlink control information.

37. An apparatus for wireless communication at a first user equipment (UE), comprising: means for receiving a configuration of interference reciprocity from a base station, the configuration of interference reciprocity indicating that cross-link interference between the first UE and the second UE is reciprocal; means for receiving, from the base station, an indication of a configured transmit power for the second UE based at least in part on the cross-link interference of a reciprocity between the first UE and the second UE; means for measuring a path loss associated with the cross-link interference between the first UE and the second UE based at least in part on the configured transmit power; means for determining a transmit power for transmission of one or more uplink messages by the first UE for reciprocal cross-link interference based at least in part on the measured path loss; as well as Means for transmitting the one or more uplink messages according to the determined transmit power.

38. An apparatus for wireless communication at a base station, comprising: means for determining interference reciprocity between a first user equipment (UE) and a second UE, the interference reciprocity being associated with cross-link interference between the first UE and the second UE; means for sending a configuration of interference reciprocity to the first UE, the configuration of interference reciprocity indicating that the cross-link interference between the first UE and the second UE is reciprocal; means for configuring transmit power for the second UE based at least in part on the reciprocal cross-link interference; means for sending, to the first UE, an indication of the configured transmit power for the second UE; as well as Means for receiving one or more uplink messages from the first UE, wherein the one or more uplink messages are based at least in part on a configured transmit power for the second UE for the reciprocal cross-link interference.

39. A non-transitory computer-readable medium storing code for wireless communication at a first user equipment (UE), the code comprising instructions executable by a processor to: receiving, from a base station, a configuration of interference reciprocity, the configuration of interference reciprocity indicating that cross-link interference between the first UE and the second UE is reciprocal; receiving, from the base station, an indication of a configured transmit power for the second UE based at least in part on the reciprocal cross-link interference between the first UE and the second UE; measuring a path loss associated with the cross-link interference between the first UE and the second UE based at least in part on the configured transmit power; determining, based at least in part on the measured path loss, a transmit power for transmission of one or more uplink messages by the first UE for reciprocal cross-link interference; as well as The one or more uplink messages are sent according to the determined transmit power.

40. A non-transitory computer readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to: determining interference reciprocity between a first user equipment (UE) and a second UE, the interference reciprocity being associated with cross-link interference between the first UE and the second UE; sending a configuration of interference reciprocity to the first UE, the configuration of interference reciprocity indicating that the cross-link interference between the first UE and the second UE is reciprocal; configuring a transmit power for the second UE based at least in part on the reciprocal cross-link interference; sending, to the first UE, an indication of the configured transmit power for the second UE; as well as One or more uplink messages are received from the first UE, wherein the one or more uplink messages are based at least in part on a configured transmit power for the second UE for the reciprocal cross-link interference.

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