Sidelink power control using shared resources

Abstract

Methods, systems, and apparatus for wireless communication are described. A user equipment (UE) configured with two sets of power control parameters can be signaled (e.g., via downlink control information (DCI)) about which set of parameters to use to determine the transmit power on a sidelink channel. The UE can determine the transmit power for sidelink messages based on an indication included in the DCI. The base station can transmit this indication based on whether uplink or downlink communication is scheduled on resources that may overlap with resources used for transmitting sidelink messages.

Description

[0001] Cross-referencing

[0002] This patent application claims the benefit of U.S. Provisional Patent Application No. 63 / 038,016, entitled "SIDELINK POWER CONTROL USING SHARED RESOURCES", filed June 11, 2020, and U.S. Patent Application No. 17 / 343,523, entitled "SIDELINK POWER CONTROLUSING SHARED RESOURCES", filed June 9, 2021, each of which is assigned to the assignee of this application.

[0003] introduction

[0004] The following generally pertains to wireless communications, particularly management-side link power. Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, message sending and receiving, broadcasting, and so on. 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 (such as Long Term Evolution (LTE) systems, LTE-A Advanced (LTE-A) systems, or LTE-APro systems) and fifth-generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems can employ various 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 Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). Wireless multiple access communication systems may include one or more base stations or one or more network access nodes, each of which simultaneously supports communication from multiple communication devices, which may also be referred to as User Equipment (UE).

[0005] Overview

[0006] A method for performing wireless communication at a first UE is described. The method may include: receiving from a base station a downlink control information (DCI) message including an indication that one or both of a first power control parameter set and a second power control parameter set are to be used for a sidelink message; and transmitting the sidelink message to a second UE using a transmit power based on the indication that one or both of the first power control parameter set and the second power control parameter set are to be used.

[0007] An apparatus for performing wireless communication at a first UE is described. The apparatus may include a processor and a memory coupled to the processor, the processor and the memory being configured to: receive from a base station a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set are to be used for a sidelink message; and transmit the sidelink message to a second UE using a transmit power based on the indication that one or both of the first and second power control parameter sets are to be used.

[0008] Another apparatus for performing wireless communication at a first UE is described. The apparatus may include: means for receiving from a base station a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set are to be used for a sidelink message; and means for transmitting the sidelink message to a second UE using a transmit power based on the indication that one or both of the first and second power control parameter sets are to be used.

[0009] A non-transient computer-readable medium is described, storing code for wireless communication at a first UE. The code may include instructions executable by a processor to: receive from a base station a DCI message including an indication to use one or both of a first power control parameter set and a second power control parameter set for a sidelink message; and transmit the sidelink message to a second UE using a transmit power based on the indication to use one or both of the first and second power control parameter sets.

[0010] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for receiving radio resource control signals or DCI messages from a base station that indicate a first set of power control parameters and a second set of power control parameters.

[0011] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a DCI message may include operations, features, means, or instructions for receiving a DCI message including a field having an indication of using one or both of a first set of power control parameters or a second set of power control parameters, wherein a sidelink message may be transmitted using a transmit power determined according to the value included in the field.

[0012] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, this field includes bit flags.

[0013] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a DCI message may include an operation, feature, means, or instruction for receiving a DCI message that schedules at least one resource for a sidelink message to be transmitted to a second UE.

[0014] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a sidelink message may include operations, features, means, or instructions for: determining that the DCI message includes an indication to use a first power control parameter set or a second power control parameter set, wherein both the first power control parameter set and the second power control parameter set may be associated with downlink path loss from the base station to the first UE; and transmitting the sidelink message using a transmit power that may be determined based on the first power control parameter set or the second power control parameter set according to the indication.

[0015] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a sidelink message may include operations, features, means, or instructions for: determining that the DCI message includes an indication to use a second set of power control parameters for the sidelink message, wherein a first set of power control parameters may be associated with downlink path loss from a base station to a first UE, and the second set of power control parameters may be associated with sidelink path loss between the first UE and a second UE; and transmitting the sidelink message using a transmit power that can be determined based on the second set of power control parameters according to the indication.

[0016] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a sidelink message may include operations, features, means, or instructions for: determining that a DCI message includes an indication to use both a first power control parameter set and a second power control parameter set for the sidelink message, wherein the first power control parameter set may be associated with downlink path loss from a base station to a first UE, and the second power control parameter set may be associated with sidelink path loss between the first UE and the second UE; identifying the lower transmit power of a first transmit power determined using the first power control parameter set and a second transmit power determined using the second power control parameter set; and using the lower transmit power to transmit the sidelink message based on the indication that the DCI message includes an indication to use both the first power control parameter set and the second power control parameter set.

[0017] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a sidelink message may include operations, features, means, or instructions for: determining that the DCI message includes an indication to use a first power control parameter set or a second power control parameter set, wherein both the first power control parameter set and the second power control parameter set may be associated with the sidelink path loss between the first UE and the second UE; and transmitting the sidelink message using a transmit power that can be determined based on the first power control parameter set or the second power control parameter set according to the indication.

[0018] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a DCI message may include operations, features, means, or instructions for receiving a DCI message in a group-shared DCI message that includes an indication for each resource in a resource set, wherein the transmit power may be determined at least in part based on the resources used for the transmission of sidelink messages.

[0019] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a DCI message may include operations, features, means, or instructions for receiving a DCI message in a group-shared DCI message that includes an indication for each UE in a set of UEs, wherein the transmit power may be determined based on the indication corresponding to the first UE.

[0020] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a DCI message may include operations, features, means, or instructions for: receiving from a base station an indication of a radio network temporary identifier corresponding to a group-shared DCI message; and receiving a DCI message in a group-shared DCI message that may be scrambled by the radio network temporary identifier and includes the indication.

[0021] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for identifying values ​​of target received power and path loss compensation components for a first set of power control parameters and a second set of power control parameters.

[0022] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for identifying a value of target received power for a first set of power control parameters and a second set of power control parameters.

[0023] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for: identifying a target received power value and an offset value for a first set of power control parameters; and identifying a target received power value for a second set of power control parameters based on the target received power value for the first set of power control parameters and the offset value.

[0024] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for: determining that the sidelink message can be associated with a first priority; and identifying a first set of power control parameters and a second set of power control parameters based on the first priority.

[0025] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for: receiving a control signal indicating a set of parameters to be utilized for each geographic region in a set of geographic regions; identifying a geographic region in which a first UE or a second UE can be located; and identifying a first set of power control parameters and a second set of power control parameters based on the identified geographic region.

[0026] A method for wireless communication at a base station is described. The method may include: transmitting to a first UE a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set will be used for sidelink messages based on at least one resource for communication with a second UE; and using the at least one resource to communicate with the second UE.

[0027] An apparatus for wireless communication at a base station is described. The apparatus may include a processor and a memory coupled to the processor, the processor and the memory being configured to: transmit to a first UE a DCI message including an indication of using one or both of a first power control parameter set and a second power control parameter set for sidelink messages based on at least one resource for communication with a second UE; and use the at least one resource to communicate with the second UE.

[0028] Another apparatus for wireless communication at a base station is described. The apparatus may include: means for transmitting to a first UE a DCI message including an indication of using one or both of a first power control parameter set and a second power control parameter set for a sidelink message based on at least one resource for communication with a second UE; and means for using the at least one resource to communicate with the second UE.

[0029] A non-transient computer-readable medium is described, storing code for wireless communication at a base station. The code may include instructions executable by a processor to: transmit to a first UE a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set will be used for a sidelink message based on at least one resource for communication with a second UE; and use the at least one resource to communicate with the second UE.

[0030] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for transmitting to a first UE a radio resource control signal or DCI message indicating a first power control parameter set and a second power control parameter set.

[0031] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a DCI message may include operations, features, means, or instructions for transmitting a DCI message that includes a field having an indication of using one or both of a first set of power control parameters or a second set of power control parameters.

[0032] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, this field includes bit flags.

[0033] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a DCI message may include operations, features, means, or instructions for transmitting a DCI message that schedules at least one second resource for sidelink messaging.

[0034] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means, or instructions for determining the instruction based on identifying that the at least one second resource partially overlaps with the at least one resource.

[0035] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means, or instructions for identifying a geographic region associated with a first UE or a third UE scheduled to receive sidelink messages from the first UE; and determining the instruction based on the geographic region.

[0036] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, devices, or instructions for transmitting control signals instructing each set of parameters in the set of geographic regions to be utilized.

[0037] A method for performing wireless communication at a first UE is described. The method may include: receiving from a base station a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set are to be used for a sidelink message; and receiving the sidelink message from a second UE based on a received power indicated by the indication that one or both of the first power control parameter set and the second power control parameter set are to be used.

[0038] An apparatus for wireless communication at a first UE is described. The apparatus may include a processor and a memory coupled to the processor, the processor and the memory being configured to: receive from a base station a DCI message including an indication to use one or both of a first power control parameter set and a second power control parameter set for sidelink messages; and receive sidelink messages from a second UE based on a received power indicated by the indication to use one or both of the first and second power control parameter sets.

[0039] Another apparatus for performing wireless communication at a first UE is described. The apparatus may include: means for receiving from a base station a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set are to be used for a sidelink message; and means for receiving the sidelink message from a second UE at a receive power based on the indication that one or both of the first and second power control parameter sets are to be used.

[0040] A non-transient computer-readable medium is described, storing code for wireless communication at a first UE. The code may include instructions executable by a processor to: receive from a base station a DCI message including an indication to use one or both of a first power control parameter set and a second power control parameter set for sidelink messages; and receive sidelink messages from a second UE based on a received power indication to use one or both of the first and second power control parameter sets.

[0041] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means, or instructions for determining, based on a DCI message, that a second UE intends to transmit a sidelink message to a first UE using a transmit power that can be determined according to the indication.

[0042] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a DCI message may include operations, features, means, or instructions for receiving a DCI message in a group-shared DCI message that includes an instruction for each UE in the UE set.

[0043] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means, or instructions for receiving DCI messages in a group-shared DCI message that includes instructions for each resource in the resource set.

[0044] A method for performing wireless communication at a first UE is described. The method may include identifying a first power control parameter set and a second power control parameter set at the first UE. The method may also include receiving from a base station a DCI message including an indication that one or both of the first and second power control parameter sets are to be used for a sidelink message. The method may further include transmitting a sidelink message to a second UE using a transmit power determined based on the indication that one or both of the first and second power control parameter sets are to be used.

[0045] An apparatus for wireless communication at a first UE is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: identify a first power control parameter set and a second power control parameter set at the first UE. The processor and the memory may also be configured to: receive from a base station a DCI message including an indication that one or both of the first and second power control parameter sets should be used for sidelink messages. The processor and the memory may be configured to: transmit sidelink messages to a second UE using a transmit power determined based on the indication that one or both of the first and second power control parameter sets should be used.

[0046] Another apparatus for wireless communication at a first UE is described. The apparatus may include means for identifying a first power control parameter set and a second power control parameter set at the first UE. The apparatus may also include means for receiving from a base station a DCI message including an indication that one or both of the first and second power control parameter sets are to be used in a sidelink message. The apparatus may further include means for transmitting a sidelink message to a second UE using a transmit power determined based on the indication that one or both of the first and second power control parameter sets are to be used.

[0047] A non-transient computer-readable medium storing code for wireless communication at a first UE is described. The code may include instructions executable by a processor to identify a first power control parameter set and a second power control parameter set at the first UE. The code may include further instructions executable by a processor to receive from a base station a DCI message including an indication to use one or both of the first and second power control parameter sets for sidelink messages. The code may include further instructions executable by a processor to transmit sidelink messages to a second UE using a transmit power determined based on the indication to use one or both of the first and second power control parameter sets.

[0048] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, identifying the first power control parameter set and the second power control parameter set may include operations, features, means, or instructions for receiving radio resource control signals or DCI messages indicating the first power control parameter set and the second power control parameter set from a base station.

[0049] In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, receiving a DCI message may include operations, features, means, or instructions for receiving a DCI message that includes a field indicating whether one or both of a first set of power control parameters or a second set of power control parameters are to be used. The sidelink message may be transmitted using a transmit power determined based on the value included in that field.

[0050] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, this field includes bit flags.

[0051] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a DCI message may include an operation, feature, means, or instruction for receiving a DCI message that schedules at least one resource for a sidelink message to be transmitted to a second UE.

[0052] In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, the transmission sidelink message may include operations, features, means, or instructions for determining whether a DCI message includes an indication to use a first power control parameter set or a second power control parameter set. Both the first and second power control parameter sets may be associated with downlink path loss from the base station to the first UE. The transmission sidelink message may also include operations, features, means, or instructions for transmitting the sidelink message using a transmit power determined based on the first or second power control parameter set according to the indication.

[0053] In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, transmitting a sidelink message may include operations, features, means, or instructions for determining that the DCI message includes an indication to use a second set of power control parameters for the sidelink message. A first set of power control parameters may be associated with downlink path loss from the base station to the first UE, and a second set of power control parameters may be associated with sidelink path loss between the first UE and the second UE. Transmitting the sidelink message may also include operations, features, means, or instructions for transmitting the sidelink message using a transmit power determined based on the second set of power control parameters according to the indication.

[0054] In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, transmitting a sidelink message may include operations, features, means, or instructions for: determining that the DCI message includes an indication to use both a first power control parameter set and a second power control parameter set for the sidelink message. The first power control parameter set may be associated with downlink path loss from the base station to the first UE, and the second power control parameter set may be associated with sidelink path loss between the first UE and the second UE. The transmitting sidelink message may also include operations, features, means, or instructions for: identifying the lower of a first transmit power determined using the first power control parameter set and a second transmit power determined using the second power control parameter set. The transmitting sidelink message may also include operations, features, means, or instructions for: using the lower transmit power to transmit the sidelink message based on the indication that the DCI message includes an indication to use both the first power control parameter set and the second power control parameter set.

[0055] In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, transmitting a sidelink message may include operations, features, means, or instructions for determining whether a DCI message includes an indication to use a first power control parameter set or a second power control parameter set. Both the first and second power control parameter sets may be associated with the sidelink path loss between a first UE and a second UE. Transmitting a sidelink message may also include operations, features, means, or instructions for transmitting a sidelink message using a transmit power determined based on the first or second power control parameter set according to the indication.

[0056] In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, receiving a DCI message may include operations, features, means, or instructions for receiving a group-shared DCI message that includes an indication for each resource in a resource set. Transmit power may be determined at least in part based on the resources used for transmitting sidelink messages.

[0057] In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, receiving a DCI message may include operations, features, means, or instructions for receiving a group-shared DCI message that includes an indication for each UE in the UE set. The transmit power may be determined based on the indication corresponding to the first UE.

[0058] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a DCI message may include operations, features, means, or instructions for: receiving from a base station an indication of a radio network temporary identifier corresponding to a group shared DCI message; and receiving a group shared DCI message including the indication.

[0059] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, identifying the first power control parameter set and the second power control parameter set may include operations, features, means, or instructions for identifying values ​​of target received power and path loss compensation components for the first power control parameter set and the second power control parameter set.

[0060] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, identifying the first power control parameter set and the second power control parameter set may include operations, features, means, or instructions for identifying a value of target received power for the first power control parameter set and the second power control parameter set.

[0061] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, identifying the first power control parameter set and the second power control parameter set may include operations, features, means, or instructions for: identifying a target received power value and an offset value for the first power control parameter set; and identifying a target received power value for the second power control parameter set based on the target received power value for the first power control parameter set and the offset value.

[0062] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, identifying the first set of power control parameters and the second set of power control parameters may include operations, features, means, or instructions for: determining that a sidelink message may be associated with a first priority; and identifying the first set of power control parameters and the second set of power control parameters based on the first priority.

[0063] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, identifying the first power control parameter set and the second power control parameter set may include operations, features, means, or instructions for: receiving a control signal indicating the set of parameters to be used for each geographic region in the geographic region set; identifying the geographic region in which the first UE or the second UE may be located; and identifying the first power control parameter set and the second power control parameter set based on the identified geographic region.

[0064] A method for wireless communication at a base station is described. The method may include determining that a first UE is configured with a first set of power control parameters and a second set of power control parameters. The method may also include determining at least one first resource for communication with a second UE. The method may further include: transmitting to the first UE a DCI message including an indication that one or both of the first and second power control parameter sets will be used for sidelink messages based on the at least one resource for communication with the second UE; and using the at least one resource to communicate with the second UE.

[0065] An apparatus for wireless communication at a base station is described. The apparatus may include a processor and a memory coupled to the processor, the processor and the memory being configured to: determine that a first UE is configured with a first power control parameter set and a second power control parameter set. The processor and the memory may also be configured to: determine at least one first resource for communication with a second UE. The processor and the memory may further be configured to: transmit to the first UE a DCI message including an indication that one or both of the first power control parameter set and the second power control parameter set will be used for sidelink messages based on at least one resource for communication with the second UE. The processor and the memory may also be configured to: use the at least one resource to communicate with the second UE.

[0066] Another apparatus for wireless communication at a base station is described. The apparatus may include means for determining that a first UE is configured with a first set of power control parameters and a second set of power control parameters. The apparatus may also include means for determining at least one first resource for communication with a second UE. The apparatus may further include means for transmitting to the first UE a DCI message including an indication that one or both of the first and second power control parameter sets will be used in a sidelink message based on at least one resource for communication with the second UE. The apparatus may also include means for using the at least one resource to communicate with the second UE.

[0067] A non-transient computer-readable medium is described, storing code for wireless communication at a base station. The code may include processor-executable instructions to: determine that a first UE is configured with a first power control parameter set and a second power control parameter set. The code may also include processor-executable instructions to: determine at least one first resource for communication with a second UE. The code may further include processor-executable instructions to: transmit to the first UE a DCI message including an indication that one or both of the first and second power control parameter sets will be used for sidelink messages based on at least one resource for communication with the second UE. The code may also include processor-executable instructions to: use the at least one resource to communicate with the second UE.

[0068] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, determining that a first UE may be configured with a first power control parameter set and a second power control parameter set may include operations, features, means, or instructions for transmitting to the first UE a radio resource control signal or DCI message indicating the first power control parameter set and the second power control parameter set.

[0069] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a DCI message may include operations, features, means, or instructions for transmitting a DCI message that includes a field having an indication of using one or both of a first set of power control parameters or a second set of power control parameters.

[0070] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, this field includes bit flags.

[0071] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a DCI message may include operations, features, means, or instructions for transmitting a DCI message that schedules at least one second resource for sidelink messaging.

[0072] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means, or instructions for determining the instruction based on identifying that the at least one second resource partially overlaps with the at least one first resource.

[0073] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means, or instructions for determining the indication based on the identification that the at least one second resource may be different from the at least one first resource.

[0074] Examples of the methods, apparatus (devices), and non-transient computer-readable media described herein may further include operations, features, means, or instructions for transmitting a DCI instructing a first UE to use a first power control parameter set or a second power control parameter set. Both the first and second power control parameter sets may be associated with downlink path loss from the base station to the first UE.

[0075] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a DCI message may include operations, features, means, or instructions for transmitting a DCI instructing a first UE to use a second set of power control parameters for a sidelink message. The first set of power control parameters may be associated with downlink path loss from the base station to the first UE, and the second set of power control parameters may be associated with sidelink path loss.

[0076] In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, transmitting a DCI message may include operations, features, means, or instructions for: transmitting a DCI instructing a first UE to use both a first power control parameter set and a second power control parameter set for a sidelink message. The first power control parameter set may be associated with downlink path loss from the base station to the first UE, and the second power control parameter set may be associated with sidelink path loss.

[0077] In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, transmitting a DCI message may include operations, features, means, or instructions for transmitting a DCI instructing a first UE to use a first power control parameter set or a second power control parameter set. Both the first and second power control parameter sets may be associated with sidelink path loss.

[0078] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a DCI message may include operations, features, means, or instructions for transmitting a group-shared DCI message that includes an indication for each resource in a set of resources.

[0079] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a DCI message may include operations, features, means, or instructions for transmitting a group-shared DCI message that includes an instruction for each UE in the UE set.

[0080] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a DCI message may include operations, features, means, or instructions for: transmitting to a first UE an indication of a radio network temporary identifier corresponding to a group-shared DCI message; and transmitting a group-shared DCI including the indication.

[0081] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, determining that a first UE may be configured with a first power control parameter set and a second power control parameter set may include operations, features, means, or instructions for transmitting control signals indicating values ​​of target received power and values ​​of path loss compensation components for the first power control parameter set and the second power control parameter set.

[0082] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, determining that a first UE may be configured with a first power control parameter set and a second power control parameter set may include operations, features, means, or instructions for transmitting control signals indicating values ​​of target received power for the first power control parameter set and the second power control parameter set.

[0083] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, determining that a first UE may be configured with a first power control parameter set and a second power control parameter set may include operations, features, means, or instructions for transmitting control signals indicating a value of a target received power for the first power control parameter set and an offset value of the value of the target received power for the second power control parameter set.

[0084] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, determining that a first UE may be configured with a first power control parameter set and a second power control parameter set may include operations, features, means, or instructions for transmitting control signals indicating that the first power control parameter set and the second power control parameter set may be associated with a first priority.

[0085] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means, or instructions for identifying a geographic region associated with a first UE or a third UE scheduled to receive sidelink messages from the first UE; and determining the instruction based on the geographic region.

[0086] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, determining that a first UE may be configured with a first set of power control parameters and a second set of power control parameters may include operations, features, means, or instructions for transmitting control signals instructing each geographic region in the set of geographic regions to utilize the set of parameters. Brief description of the attached diagram

[0088] Figure 1 Examples of wireless communication systems that support sidelink power control using shared resources according to one or more aspects of this disclosure are described.

[0089] Figure 2 Examples of wireless communication systems that support sidelink power control using shared resources according to one or more aspects of this disclosure are described.

[0090] Figure 3Examples of wireless communication systems that support sidelink power control using shared resources according to one or more aspects of this disclosure are described.

[0091] Figure 4 Examples of wireless communication systems that support sidelink power control using shared resources according to one or more aspects of this disclosure are described.

[0092] Figure 5 An example of a process flow diagram illustrating the use of sidelink power control with shared resources in accordance with one or more aspects of this disclosure is provided.

[0093] Figure 6 and 7 A block diagram of a device supporting sidelink power control using shared resources, according to one or more aspects of this disclosure, is shown.

[0094] Figure 8 A block diagram of a communication manager supporting sidelink power control using shared resources, according to one or more aspects of this disclosure, is shown.

[0095] Figure 9 A diagram of a system including devices supporting sidelink power control using shared resources, according to one or more aspects of this disclosure, is shown.

[0096] Figure 10 and 11 A block diagram of a device supporting sidelink power control using shared resources, according to one or more aspects of this disclosure, is shown.

[0097] Figure 12 A block diagram of a communication manager supporting sidelink power control using shared resources, according to one or more aspects of this disclosure, is shown.

[0098] Figure 13 A diagram of a system including devices supporting sidelink power control using shared resources, according to one or more aspects of this disclosure, is shown.

[0099] Figures 14 to 18 A flowchart illustrating a method for supporting sidelink power control using shared resources according to one or more aspects of this disclosure is shown.

[0100] Detailed description

[0101] Some wireless communication systems can support device-to-device communication between user equipment (UEs). In some cases, these UEs can communicate on a sidelink channel (which may be referred to as a PC5 link). Sidelink communication can be allocated to a resource pool configured at the UE (e.g., a pre-configured or signaled resource pool). In some examples, the base station can configure a sidelink channel that includes resources overlapping with uplink resources corresponding to the uplink channel between the UE and the base station (e.g., a cellular network connection via a logical interface (UU)). Resources that can be shared between the UU and the PC5 channel can be semi-statically scheduled (e.g., configured via resource pools).

[0102] The UE can be configured with one or more sets of power control parameters for controlling transmit power. For example, the UE can be configured with uplink power control parameters to identify the transmit power for uplink transmissions. These parameters, along with the determined path loss corresponding to the channel between the UE and the base station, can be used to determine the transmit power for uplink transmissions. In some cases, the UE can also be configured with one or more sidelink power control parameters that can be used to determine the transmit power for transmissions on a sidelink channel. In such cases, in addition to the sidelink power control parameters, the UE can also utilize the path loss corresponding to the sidelink channel to determine the sidelink transmit power. The corresponding transmit power can be determined using the appropriate power control parameters and path loss according to an open-loop power control protocol. In some cases, when the UE is configured with both sidelink power control parameters and uplink power control parameters, the UE can utilize the minimum or lowest transmit power determined using each set of power control parameters (and the corresponding path loss) as the transmit power for sidelink communication. Minimum transmit power, or lowest transmit power, can be used to limit potential interference to uplink communications by other UEs during the period when resources are allocated for the sidelink channel, because the sidelink channel may utilize resources that overlap with those of the uplink channel. However, the use of minimum transmit power may unnecessarily limit the amount of sidelink power, as power higher than the determined minimum transmit power may be used without unduly interfering with uplink communications at the base station.

[0103] The disclosed aspects described herein provide techniques that can increase the power of sidelink communication between UEs while limiting the possibility of sidelink communication interfering with uplink communication at the base station. A UE configured with two sets of power control parameters can be signaled (e.g., via DCI) which set of parameters to use to determine the transmit power on the sidelink channel. Therefore, when the base station is scheduling sidelink communication via DCI, the base station can take into account uplink communication scheduled for other UEs within the cell. As a result, if scheduled uplink communication may overlap with sidelink communication, the base station can instruct the sidelink UE to use parameters that result in lower transmit power to reduce the possibility of interfering with scheduled uplink communication. Conversely, if other UEs are not scheduled for uplink communication that may interfere with sidelink communication (e.g., no overlapping resources), the DCI can instruct the sidelink UE to use power control parameters that result in higher transmit power.

[0104] These techniques may be applicable when a UE is configured to use two sets of parameters, both for determining sidelink power, both for determining sidelink power, or one set of parameters using uplink path loss and another set using sidelink path loss. Furthermore, when selecting parameters for sidelink transmit power, the UE may consider the priority of sidelink transmissions. In some examples, the DCI may be a group-shared DCI, which indicates the set of parameters to be used by each resource in a resource set or each UE in a UE set. This group-shared DCI indication technique can be used for mode 2 sidelink communication. In some examples, the group-shared DCI may be received by both the sidelink transmitting UE and the sidelink receiving UE, and the sidelink receiving UE may determine that the sidelink transmitting UE will use one or two sets of power control parameters to communicate sidelink messages to the sidelink receiving UE.

[0105] By using multiple sets of power control parameters and employing various techniques to determine which parameters to use, the described techniques can support reduced signaling overhead, increased reliability, and efficiency in sidechain communication frameworks. Thus, the supported techniques can include reliable network operation and, in some examples, improved network efficiency.

[0106] The aspects of this disclosure are initially described in the context of wireless communication systems. The aspects of this disclosure are further described with reference to wireless communication systems and process flowcharts. The aspects of this disclosure are further illustrated and described with reference to apparatus diagrams, system diagrams, and flowcharts relating to sidelink power control using shared resources.

[0107] Figure 1Examples of a wireless communication system 100 supporting sidelink power control using shared resources according to one or more aspects of this disclosure are described. 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 Advanced 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 communication, ultra-reliable (e.g., mission-critical) communication, low latency communication, communication with low-cost and low-complexity devices, or any combination thereof.

[0108] Base station 105 can be distributed across a geographical area to form wireless communication system 100, and can be different types of devices or devices with different capabilities. Base station 105 and UE 115 can communicate wirelessly via one or more communication links 125. Each base station 105 can provide a coverage area 110, and UE 115 and base station 105 can establish one or more communication links 125 on the coverage area 110. Coverage area 110 can be an example of a geographical area over which base station 105 and UE 115 can support signal communication according to one or more radio access technologies.

[0109] Each UE 115 can be distributed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 can be stationary or mobile, or stationary and mobile at different times. Each UE 115 can be a different type of device or a device with different capabilities. Figure 1 The document describes some example UE 115s. The UE 115 described herein can communicate with various types of devices, such as other UE 115s, base station 105, or network equipment (e.g., core network nodes, relay equipment, integrated access and backhaul (IAB) nodes, or other network equipment). Figure 1 As shown in the image.

[0110] Each base station 105 may communicate with the core network 130, or with each other, or both. For example, base station 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). Base stations 105 may communicate with each other directly (e.g., directly between base stations 105), indirectly (e.g., via the core network 130), or directly and indirectly on backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, backhaul link 120 may be or include one or more radio links. UE 115 may communicate with the core network 130 via communication link 155.

[0111] One or more of the base stations 105 described herein may include, or may be referred to by those skilled in the art as, base transceiver station, radio base station, access point, radio transceiver, B node, evolved B node (eNB), next-generation B node or gigabit B node (any of which may be referred to as gNB), home B node, home evolved B node, or other suitable terms.

[0112] UE 115 may include or be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or any other suitable term, wherein "device" may also be referred to as a unit, station, terminal, or client, etc. UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or machine-type communication (MTC) device, which may be implemented in various objects such as appliances or vehicles, meters, etc.

[0113] The UE 115 described herein can communicate with various types of devices, such as other UEs 115 that sometimes act as relays, as well as base station 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, etc. Figure 1 As shown in the image.

[0114] UE 115 and base station 105 can wirelessly communicate with each other via one or more communication links 125 on one or more carriers. The term "carrier" can refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communication link 125. For example, a carrier for communication link 125 may include a portion of the radio spectrum band (e.g., a bandwidth portion (BWP)) operating according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling coordinating carrier operation, user data, or other signaling. Wireless communication system 100 may support communication with UE 115 using carrier aggregation or multi-carrier operation. UE 115 may be configured to have multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used in conjunction with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0115] In some examples (e.g., in a carrier aggregation configuration), the carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers. The carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be located according to a channel grid for discovery by UE 115. The carrier may operate in an autonomous mode in which initial acquisition and connection can be performed by UE 115 via that carrier, or in a non-autonomous mode in which the carrier may connect to carriers anchored using different carriers (e.g., different carriers of the same or different radio access technologies).

[0116] The communication link 125 shown in the wireless communication system 100 may include uplink transmission from UE 115 to base station 105, or downlink transmission from base station 105 to UE 115. The carrier may carry downlink or uplink communication (e.g., in FDD mode), or may be configured to carry both downlink and uplink communication (e.g., in TDD mode).

[0117] A carrier may be associated with a specific bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one of several defined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz) of a carrier for a particular radio access technology. Devices of the wireless communication system 100 (e.g., base station 105, UE 115, or both) may have a hardware configuration that supports communication over a specific carrier bandwidth, or may be configurable to support communication over a single carrier bandwidth within a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate over a portion (e.g., a subband, BWP) or all of the carrier bandwidth.

[0118] The signal waveform transmitted on the carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform extended OFDM (DFT-S-OFDM)). In a system employing MCM, a resource element may include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and 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 code rate of the modulation scheme, or both). Thus, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate the UE 115 can achieve. Wireless communication resources can refer to a combination of radio frequency spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and using multiple spatial layers can further improve the data rate or data integrity of communication with the UE 115.

[0119] One or more parameter designs for a carrier can be supported, where the parameter design may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier can be divided into one or more BWPs with the same or different parameter designs. In some examples, UE 115 can be configured with multiple BWPs. In some examples, a single BWP for a carrier can be active at a given time, and communication for UE 115 can be limited to one or more active BWPs.

[0120] The time interval of base station 105 or UE 115 can be expressed as a multiple of a basic time unit, such as the sampling period T. s =1 / (Δf) max ·Nf) seconds, where Δf max The maximum supported subcarrier spacing can be represented by Nf, while Nf can represent the maximum supported Discrete Fourier Transform (DFT) size. The time interval of the communication resources can be organized according to radio frames, each with a specified duration (e.g., 10 milliseconds (ms)). Each radio frame can be identified by a System Frame Number (SFN) (e.g., ranging from 0 to 1023).

[0121] 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, a frame may (e.g., in the time domain) be divided into subframes, and each subframe may be further divided into several 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 several symbol periods (e.g., depending on the length of the cyclic prefix added before each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple mini-time slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., Nf) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.

[0122] A subframe, time slot, mini-slot, or symbol can be the smallest scheduling unit of the wireless communication system 100 (e.g., in the time domain) and can be referred to as a transmission time interval (TTI). In some examples, the duration of the TTI (e.g., the number of symbol periods in the TTI) can be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 can be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

[0123] Physical channels can be multiplexed on a carrier using various techniques. Physical control channels and physical data channels can be multiplexed on a downlink carrier, for example, using one or more of Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM), or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET)) for physical control channels can be defined by the number of symbol periods and can extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESET) can be configured for a set of UEs 115. For example, one or more UEs 115 can monitor or search control regions for control information based on one or more search space sets, and each search space set can include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for control channel candidates can refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information in a control information format having a given payload size. The search space set may include a common search space set configured to send control information to multiple UEs 115 and a UE-specific search space set configured to send control information to a specific UE 115.

[0124] Each base station 105 may provide communication coverage via one or more cells (e.g., macrocells, small cells, hotspots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used to communicate with base station 105 (e.g., on a carrier) and may be associated with an identifier used to distinguish adjacent cells (e.g., Physical Cell Identifier (PCID), Virtual Cell Identifier (VCID), or others). In some examples, a cell may also refer to a geographic coverage area 110 or a portion of geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. The extent of such cells may vary from smaller areas (e.g., structures, subsets of structures) to larger areas depending on various factors (such as the capabilities of base station 105). For example, a cell may be or include buildings, subsets of buildings, or external space between or overlapping geographic coverage areas 110, among other examples.

[0125] Macrocells can cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access for UEs 115 that have service subscriptions with a network provider supporting the macrocell. Small cells can be associated with a lower-power base station 105 (compared to macrocells) and can operate in the same or different (e.g., licensed or unlicensed) frequency bands as macrocells. Small cells can provide unrestricted access to UEs 115 that have service subscriptions with a network provider, or can provide restricted access to UEs 115 associated with small cells (e.g., UEs 115 in a closed subscriber group (CSG), or UEs 115 associated with a user in a home or office). Base station 105 can support one or more cells and can also support communication on one or more cells using one or more component carriers.

[0126] In some examples, a carrier can support multiple cells and can be configured with different cells based on different protocol types that can provide access for different types of devices (e.g., MTC, Narrowband IoT (NB-IoT), Enhanced Mobile Broadband (eMBB)).

[0127] In some examples, base station 105 may be mobile, and thus provide communication coverage to 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. Wireless communication system 100 may include, for example, a heterogeneous network, in which different types of base stations 105 use the same or different radio access technologies to provide coverage to various geographic coverage areas 110.

[0128] The wireless communication system 100 can support synchronous or asynchronous operation. For synchronous operation, base stations 105 can have similar frame timing, and transmissions from different base stations 105 can be approximately time-aligned. For asynchronous operation, base stations 105 can have different frame timing, and transmissions from different base stations 105 may not be time-aligned in some examples. The techniques described herein can be used for both synchronous and asynchronous operation.

[0129] Some UE 115 devices (such as MTC or IoT devices) can be low-cost or low-complexity devices and can provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC can refer to data communication technologies that allow devices to communicate with each other or with base station 105 without human intervention. In some examples, M2M communication or MTC may include communication from devices that have integrated sensors or meters to measure or capture information and relay such information to a central server or application that uses the information or presents it to people interacting with the application. Some UE 115 devices may be designed to collect information or automate the behavior of machines or other devices. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wilderness survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial toll collection.

[0130] Some UEs 115 can be configured to operate in reduced-power modes, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but not simultaneous transmission and reception). In some examples, half-duplex communication can be performed at a reduced peak rate. Other power-saving techniques for UEs 115 include entering a power-saving deep sleep mode when not engaged in active communication, operating on limited bandwidth (e.g., according to narrowband communication), or a combination of these techniques. For example, some UEs 115 can be configured to operate using a narrowband protocol type associated with a defined portion or range (e.g., subcarriers or resource block (RB) set) within the carrier, within the carrier's guard band, or outside the carrier.

[0131] Wireless communication system 100 may be configured to support ultra-reliable communication or low latency communication, or various combinations thereof. For example, wireless communication system 100 may be configured to support ultra-reliable low latency communication (URLLC) or mission-critical communication. UE 115 may be designed to support ultra-reliable, low latency, or mission-critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private or group communication and may be supported by one or more mission-critical services, such as Mission-Critical Talk-to-Talk (MCPTT), Mission-Critical Video (MCVideo), or Mission-Critical Data (MCData)). Support for mission-critical functions may include prioritization of services, and mission-critical services may be used for public safety or general business applications. The terms ultra-reliable, low latency, mission-critical, and ultra-reliable low latency are used interchangeably herein.

[0132] In some examples, UE 115 may also be able to 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 UE 115s utilizing D2D communication may be within the geographic coverage area 110 of base station 105. Other UE 115s in such a group may be outside the geographic coverage area 110 of base station 105 or may be unable to receive transmissions from base station 105 for other reasons. In some examples, groups of UE 115s communicating via D2D communication may utilize a one-to-many (1:M) system, where each UE 115 transmits to every other UE 115 in the group. In some examples, base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between the individual UE 115s without involving base station 105.

[0133] In some systems, the D2D communication link 135 may be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, vehicles may communicate using vehicle-to-vehicle (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these communications. Vehicles may signal information related to traffic conditions, signaling, weather, safety, emergencies, or any other information relevant to the V2X system. In some examples, vehicles in a V2X system may communicate via vehicle-to-network (V2N) communication through one or more network nodes (e.g., base station 105) with roadside infrastructure (such as roadside units), or with the network, or with both.

[0134] Core network 130 provides user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. Core network 130 can be an evolved packet core (EPC) or a 5G core (5GC). The EPC or 5GC may include at least one control plane entity (e.g., a Mobility Management Entity (MME), Access and Mobility Management Function (AMF)) for managing access and mobility, and at least one user plane entity (e.g., a Serving Gateway (S-GW), Packet Data Network (PDN) Gateway (P-GW), or User Plane Function (UPF)) for routing packets or interconnecting to external networks. The control plane entity manages non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by base station 105 associated with core network 130. User IP packets can be delivered through the user plane entity, which provides IP address allocation and other functions. The user plane entity can connect to network operator IP service 150. Carrier IP services 150 may include access to the Internet, intranets, IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0135] Some network devices (such as base station 105) may include sub-components, such as access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with each UE 115 through one or more other access network transport entities 145, which may be referred to as a radio headend, smart radio headend, or transmit / receive point (TRP). 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 headends and ANCs) or combined into a single network device (e.g., base station 105).

[0136] Wireless communication system 100 can operate using one or more frequency bands in the range of 300 MHz to 300 GHz. The 300 MHz to 3 GHz band may be referred to as a UHF band or decimeter band because the wavelengths range from approximately 1 decimeter to 1 meter. UHF waves can be blocked or redirected by buildings and environmental features, but these waves can penetrate various structures sufficiently for macrocells to provide service to UE 115 located indoors. 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, UHF wave transmission can be associated with smaller antennas and shorter ranges (e.g., less than 100 km).

[0137] The wireless communication system 100 can also operate in the ultra-high frequency (SHF) zoning using a frequency band from 3 GHz to 30 GHz (also known as the centimeter band) or in the extremely high frequency (EHF) zoning using a spectrum (e.g., from 30 GHz to 300 GHz) (also known as the millimeter band). In some examples, the wireless communication system 100 can support millimeter-wave (mmW) communication between the UE 115 and the base station 105, and the EHF antennas of the corresponding devices can be smaller and more closely spaced than UHF antennas. In some examples, this can facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may suffer even greater atmospheric attenuation and shorter range than SHF or UHF transmissions. The techniques disclosed herein can be employed across transmissions using one or more different frequency zonings, and the frequency band usage specified across these frequency zonings may vary by country or regulatory authority.

[0138] The electromagnetic spectrum is typically subdivided into various classes, bands, channels, etc., based on frequency / wavelength. In 5G NR, two initial operating bands have been designated as frequency ranges FR1 (410MHz–7.125GHz) and FR2 (24.25GHz–52.6GHz). It should be understood that although a portion of FR1 is greater than 6GHz, FR1 is generally (interchangeably) referred to as the “sub-6GHz band” in various documents and articles. Similar naming issues sometimes arise with FR2; although different from the Very High Frequency (EHF) band (30GHz–300GHz) designated as the “millimeter wave” band by the International Telecommunication Union (ITU), FR2 is generally (interchangeably) referred to as the “millimeter wave” band in various documents and articles.

[0139] The frequencies between FR1 and FR2 are generally referred to as intermediate frequency (IF) bands. Recent 5G NR studies have designated the operating bands of these IF bands as the frequency range designation FR3 (7.125 GHz – 24.25 GHz). Bands falling within FR3 can inherit FR1 and / or FR2 characteristics, thus effectively extending the features of FR1 and / or FR2 into the IF band. Additionally, higher frequency bands are currently being explored to extend 5G NR operation above 52.6 GHz. For example, three higher operating frequency bands have been designated as the frequency range designations FR4a or FR4-1 (52.6 GHz – 71 GHz), FR4 (52.6 GHz – 114.25 GHz), and FR5 (114.25 GHz – 300 GHz). Each of these higher frequency bands falls within the EHF band.

[0140] In light of the foregoing, unless otherwise stated, it should be understood that, as used herein, the term "sub-6GHz" and the like can broadly refer to frequencies less than 6GHz, within FR1, or including intermediate frequency band frequencies. Furthermore, unless otherwise stated, it should be understood that, as used herein, the term "millimeter wave" and the like can broadly refer to frequencies that can include intermediate frequency band frequencies, within FR2, FR4, FR4-a or FR4-1 and / or FR5, or within the EHF band.

[0141] Wireless communication system 100 may utilize both licensed and unlicensed radio spectrum bands. For example, wireless communication system 100 may employ licensed assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in unlicensed frequency bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band). When operating in unlicensed radio spectrum bands, devices (such as base station 105 and UE 115) may employ carrier sensing for collision detection and avoidance. In some examples, operation in unlicensed frequency bands may be based on carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in licensed frequency bands. Operation in unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, etc.

[0142] Base station 105 or UE 115 may be equipped with multiple antennas that can be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels that can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may coexist at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with base station 105 may be located in different geographical locations. Base station 105 may have an antenna array with several rows and columns of antenna ports that base station 105 can use to support beamforming for communication with UE 115. Similarly, UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals transmitted via the antenna ports.

[0143] Base station 105 or UE 115 can use MIMO communication to leverage multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. This technique is known as spatial multiplexing. For example, a transmitting device may transmit multiple signals via different antennas or different combinations of antennas. Similarly, a receiving device may receive multiple signals via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), where multiple spatial layers are transmitted to the same receiving device; and multi-user MIMO (MU-MIMO), where multiple spatial layers are transmitted to multiple devices.

[0144] Beamforming (also known as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting or receiving device (e.g., base station 105, UE 115) to shape or guide an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array, such that some signals propagating relative to a particular orientation of the antenna array experience constructive interference, while others experience destructive interference. Adjustments to the signals transmitted via the antenna elements may include the transmitting or receiving device applying amplitude offset, phase offset, or both to the signals carried via the antenna elements associated with that device. The adjustments associated with each antenna element may be defined by a beamforming weight set associated with a particular orientation (e.g., the antenna array relative to the transmitting or receiving device, or relative to some other orientation).

[0145] Base station 105 or UE 115 may use beamsweeping techniques as part of beamforming operations. For example, base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) for beamforming operations to facilitate directional communication with UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by base station 105 in different directions. For example, base station 105 may transmit signals based on different beamforming weight sets associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by the transmitting device (such as base station 105) or the receiving device (such as UE 115)) to identify the beam direction that base station 105 uses for later transmission or reception.

[0146] Some signals (such as data signals associated with a specific receiving device) may be transmitted by base station 105 in a single beam direction (e.g., the direction associated with the receiving device (such as UE 115)). In some examples, the beam direction associated with transmission along a single beam direction may be determined based on the signals transmitted in one or more beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions and may report to base station 105 an indication of the signals received by UE 115 with the highest signal quality or other acceptable signal quality.

[0147] In some examples, transmissions performed by a device (e.g., by base station 105 or UE 115) may be executed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate combined beams for transmission (e.g., from base station 105 to UE 115). UE 115 may report feedback indicating precoding weights for one or more beam directions, and this feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. Base station 105 may transmit reference signals that may be precoded or unprecoded (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)). UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel type codebook, linear combination type codebook, port selection type codebook). Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may use similar techniques to transmit signals multiple times in different directions (e.g., to identify the beam direction used by UE 115 for subsequent transmission or reception) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).

[0148] A receiver device (e.g., UE 115) may attempt multiple receive configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from base station 105. For example, the receiver device may attempt multiple receive directions by: receiving via different antenna subarrays; processing received signals according to different antenna subarrays; receiving according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of the antenna array (e.g., different directional listening weight sets); or processing received signals according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of the antenna array, any of which may be referred to as "listening" according to different receive configurations or receive directions. In some examples, the receiver device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal). The single receive configuration may be aligned 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, highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).

[0149] The wireless communication system 100 can be a packet-based network operating according to a layered protocol stack. In the user plane, communication at the bearer or Packet Data Convergence Protocol (PDCP) layer can be IP-based. The Radio Link Control (RLC) layer performs packet segmentation and reassembly for communication on logical channels. The Media Access Control (MAC) layer performs priority handling and multiplexing of logical channels into transport channels. The MAC layer can also use error detection, error correction, or both to support MAC layer retransmissions to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer can provide the establishment, configuration, and maintenance of RRC connections between the UE 115 and the base station 105 or core network 130 that support user plane data radio bearers. At the physical layer, transport channels can be mapped to physical channels.

[0150] UE 115 and base station 105 can support data retransmission to increase the likelihood of successful data reception. Hybrid Automatic Repeat Request (HARQ) feedback is a technique used to increase the likelihood of correctly receiving data on communication link 125. HARQ may include a combination of error detection (e.g., using Cyclic Redundancy Check (CRC)), forward error correction (FEC), and retransmission (e.g., Automatic Repeat Request (ARQ)). HARQ can improve MAC layer throughput in poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, the device may support simultaneous time-slot HARQ feedback, where the device can provide HARQ feedback in a specific time slot for data received in previous symbols within that time slot. In other cases, the device may provide HARQ feedback in subsequent time slots or according to some other time interval.

[0151] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, message sending and receiving, broadcasting, and so on. These systems can be multiple access systems capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Wireless networks (e.g., wireless local area networks (WLANs), such as Wi-Fi (i.e., IEEE 802.11 networks)) may include access points (APs) that can communicate with one or more wireless or mobile devices. APs may be coupled to a network (such as the Internet) and enable mobile devices to communicate via that network (or with other devices coupled to the access point). Wireless devices can communicate bidirectionally with network devices. For example, in a WLAN, a device can communicate with an associated AP via a downlink (e.g., a communication link from the AP to the device) and an uplink (e.g., a communication link from the device to the AP). Wireless personal area networks (PANs) (which may include Bluetooth connectivity) can provide short-range wireless connectivity between two or more paired wireless devices. For example, wireless devices (such as cellular phones) can use wireless PAN communication to exchange information such as audio signals with wireless headsets.

[0152] In some examples, UE 115 may be configured with one or more sets of power control parameters that can be used to determine transmit power. For example, UE 115 may be configured with a set of parameters that can be used to determine transmit power for uplink communication between UE 115 and base station 105 using an open-loop power control procedure. UE 115 may additionally be configured with a set of parameters that can be used to determine transmit power for sidelink communication between UE 115 and another UE 115. In the case where UE 115 is configured with a single set of parameters, UE 115 can use these parameters for both uplink transmit power determination and sidelink transmit power determination. However, if UE 115 is configured with two sets of parameters, UE 115 may select (using the corresponding set of parameters and path loss) the lower of the two transmit powers to avoid interference with uplink communication with base station 105, because the sidelink channel may use resources that overlap with the uplink channel associated with base station 105. In some examples, the use of minimum transmit power may limit the reliability and efficiency of sidelink communication because power greater than the minimum or lowest transmit power can be used without interfering with uplink communication at base station 105.

[0153] According to the techniques described herein, a UE 115 configured with two sets of power control parameters can be signaled (e.g., via DCI) by the communication manager 101 of base station 105 about which power control parameter to use for determining sidelink transmit power. These two parameter sets can be configured using Radio Resource Control (RRC) signaling, DCI signaling, etc. The DCI can also schedule resources for sidelink communication. Thus, in addition to granting permission to schedule sidelink resources, the DCI may include bit flags or fields indicating the power control parameters. Accordingly, because base station 105 may have scheduled uplink communication with other UEs 115 on resources that at least partially overlap with the scheduled sidelink resources, base station 105 can instruct UE 115 to use a set of parameters that results in lower transmit power to avoid potential interference with uplink communication by other UEs 115. Conversely, if base station 105 does not schedule such uplink transmissions (e.g., those that may overlap with sidelink resources), base station 105 may instruct (e.g., via DCI) UE 115 to use power control parameters that result in higher sidelink transmit power. UE 115's communication manager 102 can use the instructed set of power control parameters to determine the transmit power for sidelink communication. In some examples, UE 115 (e.g., UE 115's communication manager 102) may communicate with another UE 115 (e.g., UE 115's communication manager 103) on communication link 135 (which may be a sidelink link or include a sidelink link).

[0154] The two parameter sets can use uplink path loss, sidelink path loss, or a combination thereof. In some examples, the DCI can be a group-shared DCI, which indicates the set of parameters to be used for each UE 115 in the UE 115 set or for each resource in the resource set. This group-shared DCI indication can be used for UE 115 operating in mode 2 sidelink communication. These and other implementations are further described with reference to the following figures.

[0155] Figure 2 Examples of a wireless communication system 200 supporting sidelink power control using shared resources according to one or more aspects of this disclosure are described. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100. The wireless communication system 200 includes a base station 105-a and UEs 115-a, 115-b, and 115-c, which may be referenced... Figure 1 Example of the corresponding device described. Base station 105-a can schedule various communications with UE 115, including uplink, downlink, and sidelink communications. Because base station 105-a can schedule sidelink communications between each UE 115, UE 115 can perform sidelink communications according to sidelink mode 1 operation.

[0156] One or more of the UEs in UE 115 can be configured with a set of power control parameters for determining the transmit power for the respective transmission. For example... Figure 2 As explained, UE 115-a performs uplink communication on uplink channel 215 (e.g., Physical Uplink Shared Channel (PUSCH)). Uplink channel 215 can be scheduled by base station 105-a (e.g., uplink configured and permitted) and can utilize one or more uplink resources. Uplink communication can be transmitted by UE 115-a using transmit power determined using a set of power control parameters and an open-loop power control procedure. It should be understood that in some examples, a closed-loop power control procedure can be used to perform uplink transmission. According to the open-loop power control procedure, UE 115-a can be configured with parameter P0, which can correspond to a target receive power at the base station. That is, base station 105-a can configure UE 115-a with parameter P0, which instructs base station 105-a to use receive power P0 to receive transmissions performed by UE 115-a. In some cases, parameter P0 can be defined as: p0-DL-PSCCHPSSCH. UE 115-a can also be configured with a parameter α, which can represent the path loss compensation component and may be referred to as alpha-DL-PSCCHPSSCH. These parameters are combined with downlink path loss (PL). D) can be used by UE 115-a to transmit uplink power (P) D The calculation is as follows: P D =P 0，D +10log 1o (2 μ ·M RB (i))+α D ·PL D .

[0157] One or more of the UEs 115 can also be configured with a set of power control parameters for sidelink communication. For example, UE 115-b can be configured with P0 and α for the sidelink, which can also be referred to as p0-SL-PSCCHPSSCH and alpha-SL-PSCCHPSSCH, respectively. The sidelink transmit power can be determined as follows: P S =P 0，s +10log 10 (2 μ ·M RB (i))+α S ·PL S .

[0158] UE 115 can be configured to determine transmit power using downlink path loss (e.g., between UE 115 and base station 105-a), sidelink path loss (e.g., between transmitting UE 115-b and receiving UE 115-c), or both downlink path loss and sidelink path loss. Path loss can correspond to the distance between devices and other factors, and can be based on the difference between the transmitted transmit power and the received power of the same transmission. Path loss can be determined by transmitting UE 115-b based on transmissions destined for receiving UE 115-b. For example, for downlink path loss, base station 105-a can use transmit power to transmit a transmission (e.g., a reference signal), and this transmission can indicate the transmit power. UE 115-b can receive this transmission, determine the received power (e.g., Reference Signal Received Power (RSRP)), and determine the downlink path loss based on the difference between the received power and the indicated transmit power. Similar techniques can be implemented for sidelinks. That is, UE115-c can use transmit power to transmit a transmission (e.g., a reference signal) and indicate the transmit power in the transmission. UE115-b can receive the transmission, determine the received power (e.g., RSRP), and determine the sidelink path loss based on the difference between the received power and the indicated transmit power.

[0159] When parameters for both downlink path loss and sidelink path loss are configured at UE 115, UE 115 can determine the minimum power value based on downlink path loss and sidelink path loss using an open-loop power control equation as follows: For uplink transmit power or sidelink transmit power, P = min{P...} S P D That is, the minimum function can be used to select a determined transmit power that is lower than another transmit power (e.g., one of the determined transmit powers is less than the other). For example, if P S <P D Then UE 115 can determine whether to use transmit power P. S This is because it is lower than or less than P. D Similarly, if PD < P S Then UE 115 can determine to use transmit power PD because it is lower than or less than P. S .

[0160] For example, uplink channel 215 and sidelink channel 210 (which can be scheduled by DCI message 220 transmitted on downlink channel 205) can share resources (e.g., overlapping time-domain and / or frequency-domain resources). Therefore, when UE 115-b is determining the transmit power for sidelink channel 210, UE 115-b can identify the minimum transmit power determined using uplink path loss and corresponding parameters, as well as sidelink path loss and corresponding parameters. Thus, UE 115-b can limit or reduce interference caused by communication on sidelink channel 210 and communication performed by UE 115-a on uplink channel 215. However, in some cases, UE 115-b may be able to perform sidelink communication with a higher transmit power than the determined minimum.

[0161] Based on one or more examples described herein, for a resource pool, UE 115-b can be configured with two sets of open-loop power control parameters based on the downlink path loss between UE 115-b and base station 105-a. and When no UU transmissions (e.g., transmissions between base station 105-a and UE 115-a) are scheduled on overlapping time or frequency resources of the sidelink channel between UE 115-b and UE 115-c, one of the power control parameter sets may be used. When there are UU transmissions scheduled on overlapping time or frequency resources of the sidelink channel between UE 115-b and UE 115-c, other power control parameter sets may be used. DCI message 220 may include an indication (e.g., bit flags or fields) of which power control parameter set UE 115-b will use when determining the sidelink transmit power. Thus, if uplink channel 215 includes resources that at least partially overlap with sidelink channel 210, DCI message 220 may indicate a second parameter set, and if the resources do not at least partially overlap, DCI message 220 may indicate a first parameter set. The parameter set may include P0 or both P0 and α.

[0162] To include this indication, DCI message 220 may include a field containing a sidelink grant from base station 105-a (e.g., DCI format 30 or a newer DCI format 3x) to instruct the sidelink transmitting UE (e.g., UE 115-b) to use either a first P0 (and α) value or a second P0 (and α) value for power control determination. In some cases, UE 115-b may be configured with multiple sets of open-loop power control parameters for a set of priority levels, and the transmitting UE 115-b may select the set of open-loop power control parameters from the corresponding multiple sets of P0 values ​​based on the priority of packets (e.g., sidelink messages) scheduled for transmission on the sidelink channel and the indication included in DCI message 220. That is, UE 115-b may be configured with a first set of parameters associated with a first priority, which may include subsets A (having either P0 or both P0 and α values) and B (having either P0 or both P0 and α values), and a second set of parameters associated with a second priority, which includes subsets A and B. The priority of packets scheduled for transmission can indicate to UE 115-b which set (e.g., the first or the second set) to select from, and the indication in DCI message 220 can indicate which subset (A or B) to select.

[0163] According to another technique, UE 115-b can be configured with an open-loop power control parameter set based on downlink path loss and another power control parameter set based on sidelink path loss. According to this technique, base station 105-b can indicate to the UE via a DCI message 220 carrying sidelink permission whether to use sidelink path loss (e.g., sidelink power control parameters) or both downlink path loss and sidelink path loss. In the second case (e.g., using both downlink path loss parameters and sidelink path loss parameters), UE 115-b can identify the minimum transmit power of the two equations, as described above. Thus, if no UU transmission is scheduled on the same time or frequency resources as sidelink channel 210, the sidelink transmitting UE 115-b can use sidelink path loss to determine the transmit power (e.g., P = PU). S Otherwise, if a UU transmission exists scheduled on the same time / frequency resources as the sidelink transmission, the UE can use both the sidelink path loss and the downlink path loss to determine the transmit power (e.g., P = min(P...). S P D That is, UE 115 can select two transmit powers P. S P D The lower transmit power, as described in this article.

[0164] According to another technique, UE 115-b may be configured with two or more sets of open-loop power control parameters based on sidelink path loss. In such a case, DCI message 220 may include a field indicating whether sidelink UE 115-b should use a first set of open-loop power control parameters or a second set of open-loop power control parameters to determine the sidelink transmit power. This technique can be used when base station 105-a is limiting interference from uplink communication performed by other UEs (such as transmissions performed by UE 115-a on uplink channel 215) to sidelink communication. That is, if uplink channel 215 includes resources that at least partially overlap with sidelink channel 210, base station 105-a may instruct UE 115-b to use parameters that result in higher transmit power (e.g., prioritizing sidelink communication over uplink communication performed by UE 115-a). Thus, the base station can select parameters that result in a transmit power value greater than that determined using another set of parameters. In some cases, sidelink channel 210 may be allocated resources that overlap with those of downlink channel 225. In such cases, the base station may instruct UE 115-b to use parameters that result in higher transmit power in order to limit transmission interference on downlink channel 225 to sidelink transmissions to UE 115-c carried out by base station 105-b.

[0165] UE 115-b can be configured with power control parameters using control signaling. For example, base station 105-a can transmit a radio resource control signal indicating the values ​​of a set of power control parameters. In another example, base station 105-a can transmit a DCI signal indicating the values ​​of the power control parameters. In some examples, the configuration message indicates the priority associated with the set of power control parameters. As discussed above, the set of power control parameters may include a P0 value or both a P0 and an α value. In some examples, UE 115-b is configured with a P0 value and one or more offset values ​​(e.g., -X dB or +X dB) indicating other P0 values ​​relative to a baseline P0 value.

[0166] Figure 3 Examples of a wireless communication system 300 supporting sidelink power control using shared resources according to one or more aspects of this disclosure are described. In some examples, the wireless communication system 300 may implement aspects of the wireless communication system 100. The wireless communication system 300 includes a base station 105-b and UEs 115-d, 115-e, 115-f, 115-g, and 115-h, which may be referenced. Figure 1 and 2 Examples of corresponding devices are described. Base station 105-b can schedule various uplink, downlink, and sidelink communications with various UEs 115. As discussed herein, UE 115 can be configured with two or more sets of power control parameters that can be used to determine the transmit power for various transmissions.

[0167] exist Figure 3 In this context, the group-shared DCI 320 can indicate power control parameters that one or more of the UEs 115 will use to determine the transmit power for sidelink communication. The group-shared DCI 320 can indicate the parameters to be used by the sidelink transmitting UE (e.g., UE 115-e and UE 115-g) on ​​a resource-based or UE-based basis. On a resource-based basis, the group-shared DCI 320 can indicate the set of parameters to be used per resource in the resource set. For example, UE 115-g can identify which sidelink resource will be used for sidelink transmission to UE 115-h. UE 115-g can also identify the indication in the group-shared DCI 320 corresponding to the identified resource. Based on this indication, UE 115-g can determine the transmit power. In some examples, the sidelink receiving UE 115-h can also receive the group-shared DCI 320. The sidelink receiver UE 115-h can determine, based on the group-shared DCI320, whether the sidelink transmitter UE 115-g should use a specific set of power control parameters to transmit sidelink messages to the sidelink receiver UE 115-h.

[0168] Based on UE 115, the group-shared DCI 320 can indicate the set of parameters to be used per UE in the UE 115 set. Thus, if UE 115-g is scheduled for sidelink transmission, UE 115-g can (e.g., based on its UE identifier) ​​identify the DCI indication corresponding to UE 115-g and determine the transmit power based on that indication. This group-shared DCI technology can be used when UE 115 is performing mode 2 sidelink communication. In such a scenario, base station 105-b may not manage sidelink communication and may be unaware of whether any transmissions are expected. Therefore, base station 105-b can perform power boosting or deboosting (e.g., based on the indicated set of parameters) based on the UU resources (e.g., uplink or downlink) that base station 105-b has already scheduled or is scheduling.

[0169] When a sidelink UE (e.g., UE 115-g) is transmitting according to a configured grant (e.g., without a dynamic DCI to indicate the sidelink resource), the group-shared DCI 320 can be used to manage power control and interference. For each configured grant, the sidelink UE 115 can be configured with multiple sets of open-loop power control parameters, and the selection of the open-loop power control parameters is based on the parameters configured for that specific configured grant. If a power control parameter set is configured at UE 115, UE 115 can ignore the indication in the group-shared DCI 320.

[0170] Figure 4 Examples of a wireless communication system 400 supporting sidelink power control using shared resources according to one or more aspects of this disclosure are described. In some examples, the wireless communication system 400 may implement aspects of the wireless communication system 100. The wireless communication system 400 may include a base station 105-c and a UE 115, which may be referenced... Figures 1 to 3 Examples of corresponding devices are described. Base station 105-c can schedule various uplink, downlink, and sidelink communications with various UEs 115. As discussed herein, UE 115 can be configured with two or more sets of power control parameters that can be used to determine the transmit power for various transmissions. These parameter sets can be configured per resource pool.

[0171] For finer-grained power control, the 105-c base station can configure a set of power control parameters per resource pool and per zone. For example... Figure 4As explained, the coverage area 110 of base station 105-c can be divided into multiple zones 405. A UE can be located in a specific zone 405 based on geographic information associated with UE 115 (e.g., Global Positioning System (GPS) information). UEs 115 in different zones can utilize different sets of power control parameters. Furthermore, the corresponding zone may depend on either the sidelink transmitting UE 115 or the sidelink receiving UE 115.

[0172] Base station 105-c can estimate UU (e.g., uplink and downlink) activity in some zones 405. Therefore, base station 105-c can configure smaller or larger open-loop power control values ​​(e.g., P0) based on UU activity in the zone. Base station 105-c can semi-statically adapt open-loop power control parameters based on activity in a given zone 405. Base station 105-c can instruct UE 115 on the set of parameters to be used for sidelink transmit power determination based on activity within zone 405 corresponding to UE 115.

[0173] Figure 5 An example of a process flow diagram 500 supporting sidelink power control using shared resources according to one or more aspects of this disclosure is illustrated. In some examples, the process flow diagram 500 can implement various aspects of the wireless communication system 100. This process flow includes base station 105-d and UEs 115-i and 115-j, which can be referenced... Figures 1 to 4 Examples of the corresponding devices described. UE 115-j can be an example of a sidelink transmitting UE, and UE 115-i can be an example of a sidelink receiving UE.

[0174] In step 505, UE 115-j can identify a first power control parameter set and a second power control parameter set. Both the first and second power control parameter sets can correspond to the downlink path loss between UE 115-j and base station 105-d, or both can correspond to the sidelink path loss between UE 115-j and UE 115-i, or one can correspond to the downlink path loss and the other to the sidelink path loss. The power control parameter set can be identified based on control signals (e.g., DCI messages or RRC signals) transmitted from base station 105-d to UE 115-j. In some examples, UE 115-j can be configured with additional parameter sets associated with different priorities.

[0175] At 510, UE 115-j receives a DCI message from base station 105-d. This DCI message includes an indication of whether one or both of a first power control parameter set and a second power control parameter set should be used for sidelink messages. If both sets correspond to uplink path loss, the indication may specify one of the parameters to use. If one parameter set corresponds to downlink path loss and the other to sidelink path loss, the indication may specify the parameter corresponding to either the sidelink path loss or the minimum transmit power determined by using both sets. If both parameter sets correspond to sidelink path loss, the DCI may specify which set to use. Base station 105-b may identify the set based on whether UU transmissions are scheduled on resources that may overlap with sidelink transmissions. In some examples, the DCI message is included in a group-shared DCI that includes an indication per resource or per UE (e.g., using RNTI). In some examples, the DCI may schedule at least one resource for sidelink messages. In cases where the DCI message is a group-shared DCI, UE 115-i can also receive an indication of whether UE 115-j wants to use one or two sets of power control parameters for sidelink transmit power.

[0176] In 515, UE 115-j can determine the transmit power for sidelink messages based at least in part on indications included in the DCI. That is, UE 115-j can apply a set of indication parameters (which may include a P0 value or both a P0 value and an α value) and the corresponding path loss to a relevant formula to determine the transmit power. In some examples, a second set of power control parameters is identified based on an offset from the values ​​of a first set of power control parameters. In some cases, power control parameters are identified based on the priority associated with the sidelink message (e.g., via DCI indication). In some examples, the power control parameter set is configured at UE 115-j by base station 105-d relative to a geographic region, and UE 115-j can determine the geographic region in which UE 115-j or UE 115-i is located. UE 115-j can identify the first and second sets of power control parameters at least in part based on the identified geographic region.

[0177] At 520, UE 115-j may transmit sidelink messages to the second UE 115-i using a transmit power determined at least in part based on an indication of whether one or both of the first power control parameter set and the second power control parameter set should be used.

[0178] Figure 6A block diagram 600 of a device 605 supporting sidelink power control using shared resources according to one or more aspects of this disclosure is shown. Device 605 may be an example of various aspects of UE 115 as described herein. Device 605 may include a receiver 610, a communication manager 615, and a transmitter 620. Device 605 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0179] Receiver 610 can 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 sidelink power control using shared resources). This information can be transmitted to other components of device 605. Receiver 610 can be a reference... Figure 9 Examples of various aspects of the transceiver 915 described. The receiver 610 may utilize a single antenna or an array of antennas.

[0180] Communication manager 615 may: identify a first power control parameter set and a second power control parameter set at a first UE; receive a DCI message from a base station, the DCI message including an indication to use one or both of the first power control parameter set and the second power control parameter set for a sidelink message; and transmit the sidelink message to a second UE using a transmit power determined based on the indication to use one or both of the first power control parameter set and the second power control parameter set. Communication manager 615 may be an example of aspects of communication manager 910 described herein.

[0181] The communication manager 615 may be an example of a means for performing various aspects of sidelink power control as described herein. The communication manager 615 or its sub-components may be implemented in hardware (e.g., in a communication management circuitry). This circuitry may include a processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), 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 herein.

[0182] In another implementation, the communication manager 615 or its sub-components may be implemented in code executed by a processor (e.g., as communication management software or firmware) or any combination thereof. If implemented in code executed by a processor, the functionality of the communication manager 615 or its sub-components may be executed 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.

[0183] In some examples, the communication manager 615 may be configured to perform various operations (e.g., receive, transmit, receive) using the receiver 610, transmitter 620, or both, or otherwise in cooperation with the receiver 610, transmitter 620, or both.

[0184] The communication manager 615 or its sub-components may be physically located at various locations, including being distributed such that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of this disclosure, the communication manager 615 or its sub-components may be separate and distinct components. In some examples, according to various aspects of this disclosure, the communication manager 615 or its sub-components may be combined with one or more other hardware components (including, but not limited to, input / output (I / O) components, transceivers, network servers, other computing devices, one or more other components described in this disclosure, or combinations thereof).

[0185] Transmitter 620 can transmit signals generated by other components of device 605. In some examples, transmitter 620 may coexist with receiver 610 in a transceiver module. For example, transmitter 620 may be a reference... Figure 9 Examples of various aspects of the transceiver 915 described. The transmitter 620 may utilize a single antenna or an array of antennas.

[0186] In some examples, the communication manager 615 may be implemented as an integrated circuit or chipset for a mobile device modem, and the receiver 610 and transmitter 620 may be implemented as analog components (e.g., amplifiers, filters, antennas) coupled to the mobile device modem to enable wireless transmission and reception over one or more frequency bands.

[0187] The communication manager 615 described herein can be implemented to allow device 605 to determine more precisely the transmit power for sidelink communication to support more efficient sidelink transmission between device 605 and another device, and more specifically, to determine the transmit power based on DCI messages received from the base station. For example, device 605 can identify the transmit power to be used for transmitting sidelink transmissions based on received DCI messages that indicate a set of power control parameters to be used to determine the transmit power.

[0188] Based on the side-link transmit power implementation techniques described herein (e.g., controlling receiver 610, transmitter 620, or as referred to...), Figure 9 The processor of the UE 115 described in the transceiver 920 can improve reliability and reduce signaling overhead in the side link because the side link can use sufficient transmit power to transmit.

[0189] Figure 7A block diagram 700 of a device 705 supporting sidelink power control using shared resources according to one or more aspects of this disclosure is shown. Device 705 may be an example of aspects of device 605 or UE 115 as described herein. Device 705 may include a receiver 710, a communication manager 715, and a transmitter 735. Device 705 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0190] Receiver 710 can 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 sidelink power control using shared resources). This information can be transmitted to other components of device 705. Receiver 710 can be a reference... Figure 9 Examples of various aspects of the transceiver 915 described. The receiver 710 may utilize a single antenna or an array of antennas.

[0191] Communication manager 715 may be an example of aspects of communication manager 615 as described herein. Communication manager 715 may include parameter identifier 720, DCI interface 725, and sidelink interface 730. Communication manager 715 may be an example of aspects of communication manager 910 as described herein.

[0192] The parameter identifier 720 can identify the first power control parameter set and the second power control parameter set at the first UE.

[0193] The sidelink interface 730 can transmit sidelink messages to the second UE using a transmit power determined based on an indication of whether to use one or both of the first power control parameter set and the second power control parameter set.

[0194] DCI interface 725 can receive DCI messages from the base station, which include an indication of whether one or both of a first power control parameter set and a second power control parameter set should be used for sidelink messages.

[0195] Transmitter 735 can transmit signals generated by other components of device 705. In some examples, transmitter 735 may coexist with receiver 710 in a transceiver module. For example, transmitter 735 may be a reference... Figure 9 Examples of various aspects of the transceiver 915 described. The transmitter 735 may utilize a single antenna or an array of antennas.

[0196] Figure 8A block diagram 800 of a communication manager 805 supporting sidelink power control using shared resources, according to one or more aspects of this disclosure, is shown. The communication manager 805 may be an example of aspects of the communication manager 615, communication manager 715, or communication manager 910 described herein. The communication manager 805 may include a parameter identifier 810, a DCI interface 815, a sidelink interface 820, an RRC interface 825, a sidelink power component 830, a priority component 835, and a zone identifier 840. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0197] The parameter identifier 810 can identify the first power control parameter set and the second power control parameter set at the first UE.

[0198] In some examples, parameter identifier 810 can identify the value of the target received power and the value of the path loss compensation component for the first power control parameter set and the second power control parameter set.

[0199] In some examples, parameter identifier 810 can identify the value of the target received power for a first set of power control parameters and a second set of power control parameters.

[0200] In some examples, parameter identifier 810 can identify the target received power value and offset value for the first power control parameter set.

[0201] In some examples, parameter identifier 810 can identify the target received power value for a second power control parameter set based on the target received power value and offset value for a first power control parameter set.

[0202] In some examples, parameter identifier 810 can identify a first set of power control parameters and a second set of power control parameters based on a first priority.

[0203] In some examples, parameter identifier 810 can identify the first power control parameter set and the second power control parameter set based on the identified geographic region.

[0204] DCI interface 815 can receive DCI messages from the base station, which include an indication of whether one or both of a first power control parameter set and a second power control parameter set should be used for sidelink messages.

[0205] In some examples, the DCI interface 815 can receive DCI messages that include a field indicating whether one or both of a first set of power control parameters or a second set of power control parameters should be used, wherein the sidelink message is transmitted using a transmit power determined according to the value included in the field.

[0206] In some examples, the DCI interface 815 can receive a DCI message that schedules at least one resource for a sidelink message to be transmitted to a second UE.

[0207] In some examples, the DCI interface 815 can receive DCI messages in a group-shared DCI message that includes an indication for each resource in the resource set, wherein the transmit power is determined at least in part based on the resources used for the transmission of sidelink messages.

[0208] In some examples, the DCI interface 815 can receive DCI messages in a group-shared DCI message that includes an indication for each UE in the UE set, wherein the transmit power is determined based on the indication corresponding to the first UE.

[0209] In some examples, the DCI interface 815 may receive control signals indicating the set of parameters to be used for each geographic region in the set of geographic regions. In some cases, this field includes bit flags.

[0210] In some examples, the DCI interface 815 may transmit to the first UE an indication of a radio network temporary identifier corresponding to a group shared DCI message, and transmit a group shared DCI scrambled with the radio network temporary identifier and including the indication.

[0211] The sidelink interface 820 can transmit sidelink messages to the second UE using a transmit power determined based on an indication of whether to use one or both of the first power control parameter set and the second power control parameter set.

[0212] In some examples, the sidelink interface 820 may transmit sidelink messages according to the instruction, using a transmit power determined based on a first set of power control parameters or a second set of power control parameters.

[0213] In some examples, the sidelink interface 820 may transmit sidelink messages using a transmit power determined based on a second set of power control parameters, according to the instruction. In some examples, the sidelink interface 820 may transmit sidelink messages using a lower transmit power, at least in part, based on determining that the DCI message includes an instruction regarding the use of both the first and second sets of power control parameters.

[0214] In some examples, the sidelink interface 820 may transmit sidelink messages according to the instruction, using a transmit power determined based on a first set of power control parameters or a second set of power control parameters.

[0215] The RRC interface 825 can receive radio resource control signals or DCI messages from the base station that indicate a first power control parameter set and a second power control parameter set.

[0216] The sidelink power component 830 can determine that the DCI message includes an indication of whether to use a first power control parameter set or a second power control parameter set, wherein both the first power control parameter set and the second power control parameter set are associated with downlink path loss from the base station to the first UE.

[0217] In some examples, the sidelink power component 830 may determine that the DCI message includes an indication to use a second set of power control parameters for the sidelink message, wherein the first set of power control parameters is associated with downlink path loss from the base station to the first UE, and the second set of power control parameters is associated with sidelink path loss between the first UE and the second UE.

[0218] In some examples, the sidelink power component 830 may determine that the DCI message includes an indication of using both a first power control parameter set and a second power control parameter set for the sidelink message, wherein the first power control parameter set is associated with downlink path loss from the base station to the first UE, and the second power control parameter set is associated with sidelink path loss between the first UE and the second UE.

[0219] In some examples, the sidelink power component 830 may identify the lower of a first transmit power determined using a first set of power control parameters and a second transmit power determined using a second set of power control parameters.

[0220] In some examples, the sidelink power component 830 may determine that the DCI message includes an indication of whether to use a first power control parameter set or a second power control parameter set, wherein both the first power control parameter set and the second power control parameter set are associated with the sidelink path loss between the first UE and the second UE.

[0221] Priority component 835 can determine that a sidelink message is associated with a first priority. Zone identifier 840 can identify the geographical zone in which the first UE or the second UE is located.

[0222] Figure 9A diagram of a system 900 including device 905 supporting sidelink power control using shared resources, according to one or more aspects of this disclosure, is shown. Device 905 may be an example of device 605, device 705, or UE 115 as described herein, or a component including the aforementioned devices. Device 905 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 910, a transceiver 915, an antenna 920, a memory 925, and a processor 935. These components may be in electronic communication via one or more buses (e.g., bus 940).

[0223] The communication manager 910 may: identify a first power control parameter set and a second power control parameter set at a first UE; receive a DCI message from a base station, the DCI message including an indication to use one or both of the first power control parameter set and the second power control parameter set for a sidelink message; and transmit the sidelink message to a second UE using a transmit power determined based on the indication to use one or both of the first power control parameter set and the second power control parameter set.

[0224] Transceiver 915 can communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, transceiver 915 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 915 may also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and to demodulate packets received from the antenna.

[0225] In some cases, a wireless device may include a single antenna 920. However, in other cases, the device may have more than one antenna 920, which may be able to transmit or receive multiple wireless transmissions concurrently.

[0226] Memory 925 may include random access memory (RAM) and read-only memory (ROM). Memory 925 may store computer-readable, computer-executable code 930, including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, memory 925 may particularly include a basic input / output system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0227] Code 930 may include instructions for implementing various aspects of this disclosure, including instructions for supporting wireless communication. Code 930 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, code 930 may not be directly executed by processor 935, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0228] Processor 935 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 935 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 935. Processor 935 may be configured to execute computer-readable instructions stored in memory (e.g., memory 925) to cause device 905 to perform various functions (e.g., functions or tasks supporting sidelink power control using shared resources).

[0229] Figure 10 A block diagram 1000 of a device 1005 supporting sidelink power control using shared resources, according to one or more aspects of this disclosure, is shown. Device 1005 may be an example of aspects of a base station 105 as described herein. Device 1005 may include a receiver 1010, a communication manager 1015, and a transmitter 1020. Device 1005 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0230] Receiver 1010 can 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 sidelink power control using shared resources). This information can be transmitted to other components of device 1005. Receiver 1010 can be a reference... Figure 13 Examples of various aspects of the transceiver 1320 described. The receiver 1010 may utilize a single antenna or an array of antennas.

[0231] Communication manager 1015 may determine that a first UE is configured with a first power control parameter set and a second power control parameter set; determine at least one first resource for communication with a second UE; transmit to the first UE a DCI message including an indication that one or both of the first and second power control parameter sets will be used for sidelink messages based on the at least one resource for communication with the second UE; and use the at least one resource to communicate with the second UE. Communication manager 1015 may be an example of aspects of communication manager 1310 described herein.

[0232] The communication manager 1015 may be an example of a means for performing various aspects of management sidelink power control as described herein. The communication manager 1015 or its sub-components may be implemented in hardware (e.g., in a communication management circuitry). This circuitry may include a processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), 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 herein.

[0233] In another implementation, the communication manager 1015 or its subcomponents may be implemented in code executed by a processor (e.g., as communication management software or firmware) or any combination thereof. If implemented in code executed by a processor, the functionality of the communication manager 1015 or its subcomponents may be executed 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.

[0234] In some examples, the communication manager 1015 may be configured to perform various operations (e.g., transmit, communicate) using the receiver 1010, the transmitter 1020, or both, or otherwise in cooperation with the receiver 1010, the transmitter 1020, or both.

[0235] The communication manager 1015 or its subcomponents may be physically located at various locations, including being distributed such that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of this disclosure, the communication manager 1015 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of this 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, other computing devices, one or more other components described in this disclosure, or combinations thereof).

[0236] Transmitter 1020 can transmit signals generated by other components of device 1005. In some examples, transmitter 1020 may coexist with receiver 1010 in a transceiver module. For example, transmitter 1020 may be a reference... Figure 13 Examples of various aspects of the transceiver 1320 are described. The transmitter 1020 may utilize a single antenna or an array of antennas.

[0237] Figure 11A block diagram 1100 of a device 1105 supporting sidelink power control using shared resources according to one or more aspects of this disclosure is shown. Device 1105 may be an example of a device 1105 as described herein or an aspect of base station 105. Device 1105 may include a receiver 1110, a communication manager 1115, and a transmitter 1140. Device 1105 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0238] Receiver 1110 can 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 sidelink power control using shared resources). This information can be transmitted to other components of device 1105. Receiver 1110 can be a reference... Figure 13 Examples of various aspects of the transceiver 1320 described. The receiver 1110 may utilize a single antenna or an array of antennas.

[0239] Communication manager 1115 may be an example of aspects of communication manager 1015 as described herein. Communication manager 1115 may include parameter identifier 1120, resource component 1125, DCI interface 1130, and communication interface 1135. Communication manager 1115 may be an example of aspects of communication manager 1310 as described herein.

[0240] The parameter identifier 1120 can determine that the first UE is configured with a first power control parameter set and a second power control parameter set. The communication interface 1135 can use the at least one resource to communicate with the second UE. The resource component 1125 can determine at least one first resource for communication with the second UE.

[0241] DCI interface 1130 can transmit to the first UE a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set will be used for sidelink messages based on at least one resource for communication with the second UE.

[0242] Transmitter 1140 can transmit signals generated by other components of device 1105. In some examples, transmitter 1140 may coexist with receiver 1110 in a transceiver module. For example, transmitter 1140 may be a reference... Figure 13 Examples of various aspects of the transceiver 1320 are described. The transmitter 1140 may utilize a single antenna or an array of antennas.

[0243] Figure 12A block diagram 1200 of a communication manager 1205 supporting sidelink power control using shared resources, according to one or more aspects of this disclosure, is shown. The communication manager 1205 may be an example of aspects of the communication manager 1015, communication manager 1115, or communication manager 1310 described herein. The communication manager 1205 may include a parameter identifier 1210, a resource component 1215, a DCI interface 1220, a communication interface 1225, an RRC interface 1230, a control signal component 1235, and a zone identifier 1240. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0244] The parameter identifier 1210 can determine that the first UE is configured with a first power control parameter set and a second power control parameter set.

[0245] Resource component 1215 may identify at least one first resource for communication with the second UE. In some examples, resource component 1215 may determine the indication based on the identification that at least one second resource partially overlaps with at least one first resource.

[0246] DCI interface 1220 can transmit to the first UE a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set will be used for sidelink messages based on at least one resource for communication with the second UE.

[0247] In some examples, DCI interface 1220 may transmit a DCI message including a field indicating whether one or more of a first power control parameter set or a second power control parameter set should be used. In some examples, DCI interface 1220 may transmit a DCI message for scheduling at least one second resource for a sidelink message.

[0248] In some examples, the DCI interface 1220 may determine the indication based on the identification that at least one second resource is different from at least one first resource.

[0249] In some examples, the DCI interface 1220 may transmit a DCI indicating that the first UE should use a first power control parameter set or a second power control parameter set, wherein both the first power control parameter set and the second power control parameter set are associated with downlink path loss from the base station to the first UE.

[0250] In some examples, the DCI interface 1220 can transmit a DCI instructing the first UE to use a second set of power control parameters for a sidelink message, wherein the first set of power control parameters is associated with downlink path loss from the base station to the first UE, and the second set of power control parameters is associated with sidelink path loss.

[0251] In some examples, the DCI interface 1220 can transmit a DCI instructing the first UE to use both a first power control parameter set and a second power control parameter set for a sidelink message, wherein the first power control parameter set is associated with downlink path loss from the base station to the first UE, and the second power control parameter set is associated with sidelink path loss.

[0252] In some examples, the DCI interface 1220 may transmit a DCI indicating that the first UE should use a first power control parameter set or a second power control parameter set, wherein both the first power control parameter set and the second power control parameter set are associated with sidelink path loss.

[0253] In some examples, DCI interface 1220 can transmit downlink control information in a group-shared DCI message that includes an indication for each resource in the resource set.

[0254] In some examples, DCI interface 1220 can transmit downlink control information in a group-shared DCI message that includes an indication for each UE in the UE set.

[0255] In some examples, the DCI interface 1220 can transmit control signals indicating the values ​​of the target received power and the path loss compensation components for a first set of power control parameters and a second set of power control parameters.

[0256] In some examples, the DCI interface 1220 can transmit control signals indicating the values ​​of a target received power for a first set of power control parameters and a second set of power control parameters.

[0257] In some examples, the DCI interface 1220 may determine the indication based on geographic region. In some cases, the field includes bit flags. The communication interface 1225 may use this at least one resource to communicate with a second UE.

[0258] In some examples, the DCI interface 1220 may transmit to the first UE an indication of a radio network temporary identifier corresponding to a group shared DCI message, and transmit a group shared DCI scrambled with the radio network temporary identifier and including the indication.

[0259] RRC interface 1230 can transmit radio resource control signals or DCI messages to the first UE that indicate a first power control parameter set and a second power control parameter set.

[0260] The control signal component 1235 can transmit control signals indicating a target received power value for a first set of power control parameters and an offset value for a target received power value for a second set of power control parameters.

[0261] In some examples, the control signal component 1235 may transmit control signals indicating a first set of power control parameters, and a second set of power control parameters may be associated with a first priority.

[0262] The zone identifier 1240 can identify a geographic zone associated with a first UE or a third UE scheduled to receive sidelink messages from the first UE. In some examples, the zone identifier 1240 can receive control signals indicating the set of parameters to be used for each geographic zone in the set of geographic zones.

[0263] Figure 13 A diagram of a system 1300 including device 1305 supporting sidelink power control using shared resources, according to one or more aspects of this disclosure, is shown. Device 1305 may be an example of or include components of device 1005, device 1105, or base station 105 as described herein. Device 1305 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 1310, a network communication manager 1315, a transceiver 1320, an antenna 1325, a memory 1330, a processor 1340, and an inter-site communication manager 1345. These components may be in electronic communication via one or more buses (e.g., bus 1350).

[0264] The communication manager 1310 can determine that the first UE is configured with a first power control parameter set and a second power control parameter set; determine at least one first resource for communication with the second UE; transmit to the first UE a DCI message including an indication that one or both of the first power control parameter set and the second power control parameter set will be used for sidelink messages based on at least one resource for communication with the second UE; and use the at least one resource to communicate with the second UE.

[0265] The network communication manager 1315 can manage communication with the core network (e.g., via one or more wired backhaul links). For example, the network communication manager 1315 can manage the delivery of data communication to client devices (such as one or more UEs 115).

[0266] Transceiver 1320 can communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, transceiver 1320 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 1320 may also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and to demodulate packets received from the antenna.

[0267] In some cases, the wireless device may include a single antenna 1325. However, in other cases, the device may have more than one antenna 1325, which may be able to transmit or receive multiple wireless transmissions concurrently.

[0268] Memory 1330 may include RAM and ROM. Memory 1330 may store computer-readable, computer-executable code 1335, including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, memory 1330 may, in particular, contain a BIOS that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0269] Code 1335 may include instructions for implementing various aspects of this disclosure, including instructions for supporting wireless communication. Code 1335 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, code 1335 may not be directly executed by processor 1340, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0270] Processor 1340 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 1340 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 1340. Processor 1340 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1330) to cause device 1305 to perform various functions (e.g., functions or tasks supporting sidelink power control using shared resources).

[0271] Inter-site communication manager 1345 manages communication with other base stations 105 and may include a controller or scheduler for cooperating with other base stations 105 to control communication with UE 115. For example, inter-site communication manager 1345 may coordinate the scheduling of transmissions to UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, inter-site communication manager 1345 may provide an X2 interface within LTE / LTE-A wireless communication network technology to facilitate communication between base stations 105.

[0272] Figure 14A flowchart illustrating a method 1400 for supporting sidelink power control using shared resources according to one or more aspects of this disclosure is shown. Operation of method 1400 may be implemented by a UE 115 or its components as described herein. For example, operation of method 1400 may be implemented by, as referred to... Figures 6 to 9 The described communication manager is used to execute this function. In some examples, the UE can execute a set of instructions to control the UE's functional elements to perform the described function. Alternatively or alternatively, the UE can use dedicated hardware to perform aspects of the described function.

[0273] At 1405, the UE can identify a first power control parameter set and a second power control parameter set at the first UE location. The operation of 1405 can be performed according to the method described herein. In some examples, aspects of the operation of 1405 can be determined by referring to... Figures 6 to 9 The described parameter identifier is used for execution.

[0274] At 1410, the UE may receive from the base station a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set are to be used in a sidelink message. Operation of 1410 may be performed according to the methods described herein. In some examples, aspects of the operation of 1410 may be determined by reference to... Figures 6 to 9 The described DCI interface is used for execution.

[0275] At 1415, the UE can transmit sidelink messages to the second UE using a transmit power determined based on an indication of whether one or both of a first power control parameter set and a second power control parameter set should be used. The operation of 1415 can be performed according to the methods described herein. In some examples, aspects of the operation of 1415 can be determined by referring to... Figures 6 to 9 The described sidelink interface is used for execution.

[0276] Figure 15 A flowchart illustrating a method 1500 for supporting sidelink power control using shared resources according to one or more aspects of this disclosure is shown. Operation of method 1500 may be implemented by a base station 105 or its components as described herein. For example, operation of method 1500 may be implemented by, as referred to... Figures 10 to 13 The described communication manager is used to execute this. In some examples, the base station can execute a set of instructions to control the functional elements of the base station to perform the described functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the described functions.

[0277] At step 1505, the base station can determine that the first UE is configured with a first set of power control parameters and a second set of power control parameters. Operation of step 1505 can be performed according to the method described herein. In some examples, aspects of operation of step 1505 can be determined by referring to... Figures 10 to 13 The described parameter identifier is used for execution.

[0278] At 1510, the base station may determine at least one first resource for communication with the second UE. The operation of 1510 may be performed according to the method described herein. In some examples, aspects of the operation of 1510 may be determined by reference to... Figures 10 to 13 The resource components described are used to execute.

[0279] At 1515, the base station may transmit to the first UE a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set will be used for sidelink messages based on at least one resource for communication with the second UE. Operation of 1515 may be performed according to the methods described herein. In some examples, aspects of the operation of 1515 may be determined by reference to... Figures 10 to 13 The described DCI interface is used for execution.

[0280] At 1520, the base station can use the at least one resource to communicate with the second UE. The operation of 1520 can be performed according to the method described herein. In some examples, aspects of the operation of 1520 can be determined by referring to... Figures 10 to 13 The described communication interface is used for execution.

[0281] Figure 16 A flowchart illustrating a method 1400 for supporting sidelink power control using shared resources according to one or more aspects of this disclosure is shown. Operation of method 1600 may be implemented by a UE or its components as described herein. For example, operation of method 1600 may be implemented by, as referred to... Figures 1 to 9 The described UE 115 and / or reference Figures 6 to 9 The described communication manager is used to execute this function. In some examples, the UE can execute a set of instructions to control the UE's functional elements to perform the described function. Alternatively or alternatively, the UE may use dedicated hardware to perform aspects of the described function.

[0282] At 1605, the method may include receiving from a base station a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set are to be used for a sidelink message. Operation of 1605 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1605 may be provided by reference to... Figure 8The described DCI interface 815 is used for execution. In some examples, the DCI may include an indication of using a first power control parameter set or a second power control parameter set, wherein both the first and second power control parameter sets are associated with downlink path loss from the base station to the first UE. In some examples, the DCI may include an indication of using the second power control parameter set for sidelink messages, wherein the first power control parameter set is associated with downlink path loss from the base station to the first UE, and the second power control parameter set is associated with sidelink path loss between the first UE and the second UE. In some examples, the DCI may include an indication of using both the first and second power control parameter sets for sidelink messages, wherein the first power control parameter set is associated with downlink path loss from the base station to the first UE, and the second power control parameter set is associated with sidelink path loss between the first UE and the second UE. In some examples, the DCI may include an indication of using either the first or second power control parameter set, wherein both the first and second power control parameter sets are associated with sidelink path loss between the first UE and the second UE. In some examples, the DCI is included in a group-shared DCI that includes an indication per resource or per UE or both (e.g., using RNTI).

[0283] In 1610, the method may include transmitting a sidelink message to a second UE using a transmit power based on an indication of whether one or both of a first power control parameter set and a second power control parameter set are to be used. Operation of 1610 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1610 may be provided by reference to... Figure 8 The described side link interface 820 is used for execution.

[0284] Figure 17 A flowchart illustrating a method 1500 for supporting sidelink power control using shared resources according to one or more aspects of this disclosure is shown. Operation of method 1700 may be implemented by a base station or its components as described herein. For example, operation of method 1700 may be implemented by, as referred to... Figures 1 to 5 The base station 105 described in 10 to 13 is used to perform this function. In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the described functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the described functions.

[0285] In 1705, the method may include transmitting to the first UE a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set will be used for sidelink messages, at least in part based on at least one resource for communication with the second UE. Operation of 1705 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1705 may be provided by reference to... Figure 12 The described DCI interface 1220 is used for execution. In some examples, the DCI may include an indication of using a first power control parameter set or a second power control parameter set, wherein both the first and second power control parameter sets are associated with downlink path loss from the base station to the first UE. In some examples, the DCI may include an indication of using the second power control parameter set for sidelink messages, wherein the first power control parameter set is associated with downlink path loss from the base station to the first UE, and the second power control parameter set is associated with sidelink path loss between the first UE and the second UE. In some examples, the DCI may include an indication of using both the first and second power control parameter sets for sidelink messages, wherein the first power control parameter set is associated with downlink path loss from the base station to the first UE, and the second power control parameter set is associated with sidelink path loss between the first UE and the second UE. In some examples, the DCI may include an indication of using either the first or second power control parameter set, wherein both the first and second power control parameter sets are associated with sidelink path loss between the first UE and the second UE. In some examples, the DCI is included in a group-shared DCI that includes an indication per resource or per UE or both (e.g., using RNTI).

[0286] In 1710, the method may include using at least one resource to communicate with a second UE. The operation of 1710 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1710 may be provided by reference to... Figure 12 The described communication interface 1225 is used for execution.

[0287] Figure 18 A flowchart illustrating a method 1800 for supporting sidelink power control using shared resources according to one or more aspects of this disclosure is shown. Operation of method 1800 may be implemented by a UE or its components as described herein. For example, operation of method 1800 may be implemented by, as referred to... Figures 1 to 9 The UE 115 described herein is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described function.

[0288] At 1805, the method may include receiving from a base station a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set are to be used for a sidelink message. Operation of 1805 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1805 may be provided by reference to... Figure 8 The described DCI interface 815 is used for execution. In some examples, the DCI may include an indication of using a first power control parameter set or a second power control parameter set, wherein both the first and second power control parameter sets are associated with downlink path loss from the base station to the first UE. In some examples, the DCI may include an indication of using the second power control parameter set for sidelink messages, wherein the first power control parameter set is associated with downlink path loss from the base station to the first UE, and the second power control parameter set is associated with sidelink path loss between the first UE and the second UE. In some examples, the DCI may include an indication of using both the first and second power control parameter sets for sidelink messages, wherein the first power control parameter set is associated with downlink path loss from the base station to the first UE, and the second power control parameter set is associated with sidelink path loss between the first UE and the second UE. In some examples, the DCI may include an indication of using either the first or second power control parameter set, wherein both the first and second power control parameter sets are associated with sidelink path loss between the first UE and the second UE. In some examples, the DCI is included in a group-shared DCI that includes an indication per resource or per UE or both (e.g., using RNTI).

[0289] In 1810, the method may include receiving a sidelink message from a second UE based on an indication of received power regarding the use of one or both of a first set of power control parameters and a second set of power control parameters. Operation of 1810 may be performed according to the examples disclosed herein. In some examples, aspects of operation of 1810 may be provided by reference to... Figure 8 The described side link interface 820 is used for execution.

[0290] The following provides a first overview of various aspects of the present invention:

[0291] Aspect 1: A method for performing wireless communication at a first UE, comprising: receiving from a base station a DCI message including an indication of using one or both of a first power control parameter set and a second power control parameter set for a sidelink message; and transmitting the sidelink message to a second UE using a transmit power at least in part based on the indication of using one or both of the first power control parameter set and the second power control parameter set.

[0292] Aspect 2: The method of aspect 1 further includes: receiving from the base station a radio resource control signal or DCI message indicating a first power control parameter set and a second power control parameter set.

[0293] Aspect 3: The method of any one of Aspects 1 to 2, wherein receiving a DCI message includes: receiving a DCI message including a field having an indication of using one or both of a first set of power control parameters or a second set of power control parameters, wherein the sidelink message is transmitted using a transmit power determined according to a value included in the field.

[0294] Aspect 4: The method of aspect 3, wherein the field includes a bit flag.

[0295] Aspect 5: The method of any one of Aspects 1 to 4, wherein receiving a DCI message includes: receiving a DCI message that schedules at least one resource for a sidelink message to be transmitted to a second UE.

[0296] Aspect 6: The method of any one of Aspects 1 to 5, wherein transmitting the sidelink message comprises: determining that the DCI message includes an indication of using a first power control parameter set or a second power control parameter set, wherein both the first power control parameter set and the second power control parameter set are associated with downlink path loss from the base station to the first UE; and transmitting the sidelink message using a transmit power determined according to the indication based at least in part on the first power control parameter set or the second power control parameter set.

[0297] Aspect 7: A method of any one of Aspects 1 to 5, wherein transmitting a sidelink message comprises: determining that the DCI message includes an indication to use a second set of power control parameters for the sidelink message, wherein a first set of power control parameters is associated with downlink path loss from the base station to the first UE and the second set of power control parameters is associated with sidelink path loss between the first UE and the second UE; and transmitting the sidelink message using a transmit power determined according to the indication based at least in part on the second set of power control parameters.

[0298] Aspect 8: A method of any one of Aspects 1 to 5, wherein transmitting a sidelink message comprises: determining that the DCI message includes an indication regarding using both a first power control parameter set and a second power control parameter set for the sidelink message, wherein the first power control parameter set is associated with downlink path loss from the base station to the first UE, and the second power control parameter set is associated with sidelink path loss between the first UE and the second UE; identifying the lower of a first transmit power determined using the first power control parameter set and a second transmit power determined using the second power control parameter set; and using the lower transmit power to transmit the sidelink message, at least in part, based on the indication that the DCI message includes the indication regarding using both the first power control parameter set and the second power control parameter set.

[0299] Aspect 9: A method of any one of Aspects 1 to 5, wherein transmitting a sidelink message comprises: determining that the DCI message includes an indication to use a first power control parameter set or a second power control parameter set, wherein both the first power control parameter set and the second power control parameter set are associated with the sidelink path loss between the first UE and the second UE; and transmitting the sidelink message using a transmit power determined according to the indication based at least in part on the first power control parameter set or the second power control parameter set.

[0300] Aspect 10: The method of any one of Aspects 1 to 9, wherein receiving a DCI message comprises: receiving a DCI message in a group-shared DCI message including an indication for each resource in the resource set, wherein the transmit power is determined at least in part based on the resources used for the transmission of sidelink messages.

[0301] Aspect 11: The method of any one of Aspects 1 to 10, wherein receiving a DCI message comprises: receiving a DCI message in a group-shared DCI message including an indication for each UE in the UE set, wherein the transmit power is determined at least in part based on the indication corresponding to the first UE.

[0302] Aspect 12: The method of any one of Aspects 1 to 11, wherein receiving a DCI message comprises: receiving from a base station an indication of a radio network temporary identifier corresponding to a group shared DCI message; and receiving the DCI message in a group shared DCI message scrambled with the radio network temporary identifier and including the indication.

[0303] Aspect 13: The method of any one of Aspects 1 to 12 further includes: identifying the value of the target received power and the value of the path loss compensation component for the first power control parameter set and the second power control parameter set.

[0304] Aspect 14: The method of any one of Aspects 1 to 13 further includes: identifying a value of a target received power for a first set of power control parameters and a second set of power control parameters.

[0305] Aspect 15: The method of any one of Aspects 1 to 14 further includes: identifying a value of a target received power and an offset value for a first set of power control parameters; and identifying a value of a target received power for a second set of power control parameters based at least in part on the value of the target received power for the first set of power control parameters and the offset value.

[0306] Aspect 16: The method of any one of Aspects 1 to 15 further includes: determining that a side link message is associated with a first priority; and identifying a first set of power control parameters and a second set of power control parameters based at least in part on the first priority.

[0307] Aspect 17: The method of any one of Aspects 1 to 16 further includes: receiving a control signal indicating a set of parameters to be used for each geographic region in the geographic region set; identifying the geographic region in which the first UE or the second UE is located; and identifying the first power control parameter set and the second power control parameter set at least in part based on the identified geographic region.

[0308] Aspect 18: A method for wireless communication at a base station, comprising: transmitting to a first UE a DCI message including an indication that one or both of a first power control parameter set and a second power control parameter set will be used for sidelink messages based at least in part on at least one resource for communication with a second UE; and using the at least one resource to communicate with the second UE.

[0309] Aspect 19: The method of aspect 18 further includes: transmitting to the first UE a radio resource control signal or DCI message indicating a first power control parameter set and a second power control parameter set.

[0310] Aspect 20: The method of any one of Aspects 18 to 19, wherein transmitting the DCI message comprises: transmitting a DCI message including a field having an indication of using one or both of a first set of power control parameters or a second set of power control parameters.

[0311] Aspect 21: The method of aspect 20, wherein the field includes a bit flag.

[0312] Aspect 22: The method of any one of Aspects 18 to 21, wherein transmitting the DCI message includes: transmitting a DCI message for scheduling at least one second resource as a sidelink message.

[0313] Aspect 23: The method of any one of Aspects 18 to 22 further includes: determining the indication based at least in part on identifying that at least one second resource partially overlaps with the at least one resource.

[0314] Aspect 24: The method of any one of Aspects 18 to 23 further includes: identifying a geographic region associated with the first UE or a third UE scheduled to receive sidelink messages from the first UE; and determining the indication based at least in part on the geographic region.

[0315] Aspect 25: The method of any one of Aspects 18 to 24 further includes: transmitting a control signal indicating the set of parameters to be used for each geographic region in the set of geographic regions.

[0316] Aspect 26: A method for performing wireless communication at a first UE, comprising: receiving from a base station a DCI message including an indication of using one or both of a first power control parameter set and a second power control parameter set for a sidelink message; and receiving the sidelink message from a second UE at a received power at least in part based on the indication of using one or both of the first power control parameter set and the second power control parameter set.

[0317] Aspect 27: The method of aspect 26 further includes: determining, at least in part, based on the DCI message, that the second UE will use the transmit power determined according to the indication to transmit the sidelink message to the first UE.

[0318] Aspect 28: The method of any one of Aspects 26 to 27, wherein receiving a DCI message includes: receiving a DCI message in a group-shared DCI message that includes an indication for each UE in the UE set.

[0319] Aspect 29: The method of any one of Aspects 26 to 28 further includes: receiving a DCI message in a group-shared DCI message that includes an indication for each resource in the resource set.

[0320] Aspect 30: An apparatus for wireless communication at a first UE, comprising: a processor; and a memory coupled to the processor, the processor and the memory being configured to perform a method as described in any one of aspects 1 to 17.

[0321] Aspect 31: An apparatus for wireless communication at a first UE, comprising at least one means for performing a method as described in any one of aspects 1 to 17.

[0322] Aspect 32: A non-transient computer-readable medium storing code for wireless communication at a first UE, the code including instructions executable by a processor to perform methods as described in any of Aspects 1 to 17.

[0323] Aspect 33: An apparatus for wireless communication at a base station, comprising a processor and a memory coupled to the processor, the processor and the memory being configured to perform the method of any one of aspects 18 to 25.

[0324] Aspect 34: An apparatus for wireless communication at a base station, comprising at least one means for performing the method of any one of aspects 18 to 25.

[0325] Aspect 35: A non-transient computer-readable medium storing code for wireless communication at a base station, the code including instructions executable by a processor to perform methods as described in any one of Aspects 18 to 25.

[0326] Aspect 36: An apparatus comprising: a processor; and a memory coupled to the processor, the processor and the memory being configured to perform a method as described in any one of aspects 26 to 29.

[0327] Aspect 37: An apparatus comprising at least one means for performing a method as described in any of aspects 26 to 29.

[0328] Aspect 38: A non-transient computer-readable medium storing code including instructions executable by a processor to perform methods as described in any of Aspects 26 to 29.

[0329] The following provides a second overview of various aspects of the invention:

[0330] Aspect 1: A method for performing wireless communication at a first UE, comprising: identifying a first power control parameter set and a second power control parameter set at the first UE; receiving from a base station a DCI message including an indication that one or both of the first power control parameter set and the second power control parameter set are to be used for a sidelink message; and transmitting the sidelink message to a second UE using a transmit power determined at least in part based on the indication that one or both of the first power control parameter set and the second power control parameter set are to be used.

[0331] Aspect 2: The method of aspect 1, wherein identifying the first power control parameter set and the second power control parameter set includes: receiving a radio resource control signal or DCI message from a base station indicating the first power control parameter set and the second power control parameter set.

[0332] Aspect 3: The method of any one of Aspects 1 to 2, wherein receiving a DCI message includes: receiving a DCI message including a field having an indication of using one or both of a first set of power control parameters or a second set of power control parameters, wherein the sidelink message is transmitted using a transmit power determined according to a value included in the field.

[0333] Aspect 4: The method of aspect 3, wherein the field includes a bit flag.

[0334] Aspect 5: The method of any one of Aspects 1 to 4, wherein receiving a DCI message includes: receiving a DCI message that schedules at least one resource for a sidelink message to be transmitted to a second UE.

[0335] Aspect 6: The method of any one of Aspects 1 to 5, wherein transmitting the sidelink message comprises: determining that the DCI message includes an indication of using a first power control parameter set or a second power control parameter set, wherein both the first power control parameter set and the second power control parameter set are associated with downlink path loss from the base station to the first UE; and transmitting the sidelink message using a transmit power determined according to the indication based at least in part on the first power control parameter set or the second power control parameter set.

[0336] Aspect 7: A method of any one of Aspects 1 to 5, wherein transmitting a sidelink message comprises: determining that the DCI message includes an indication to use a second set of power control parameters for the sidelink message, wherein a first set of power control parameters is associated with downlink path loss from the base station to the first UE and the second set of power control parameters is associated with sidelink path loss between the first UE and the second UE; and transmitting the sidelink message using a transmit power determined according to the indication based at least in part on the second set of power control parameters.

[0337] Aspect 8: A method of any one of Aspects 1 to 5, wherein transmitting a sidelink message comprises: determining that the DCI message includes an indication regarding using both a first power control parameter set and a second power control parameter set for the sidelink message, wherein the first power control parameter set is associated with downlink path loss from the base station to the first UE, and the second power control parameter set is associated with sidelink path loss between the first UE and the second UE; identifying the lower of a first transmit power determined using the first power control parameter set and a second transmit power determined using the second power control parameter set; and using the lower transmit power to transmit the sidelink message, at least in part, based on the indication that the DCI message includes the indication regarding using both the first power control parameter set and the second power control parameter set.

[0338] Aspect 9: A method of any one of Aspects 1 to 5, wherein transmitting a sidelink message comprises: determining that the DCI message includes an indication to use a first power control parameter set or a second power control parameter set, wherein both the first power control parameter set and the second power control parameter set are associated with the sidelink path loss between the first UE and the second UE; and transmitting the sidelink message using a transmit power determined according to the indication based at least in part on the first power control parameter set or the second power control parameter set.

[0339] Aspect 10: The method of any one of Aspects 1 to 9, wherein receiving a DCI message comprises: receiving a group-shared DCI message including an indication for each resource in the resource set, wherein the transmit power is determined at least in part based on the resources used for the transmission of sidelink messages.

[0340] Aspect 11: The method of any one of Aspects 1 to 9, wherein receiving a DCI message comprises: receiving a group-shared DCI message including an indication for each UE in the UE set, wherein the transmit power is determined at least in part based on the indication corresponding to the first UE.

[0341] Aspect 12: The method of any one of Aspects 1 to 11, wherein receiving a DCI message comprises: receiving from a base station an indication of a radio network temporary identifier corresponding to a group shared DCI message; and receiving a group shared DCI message including the indication.

[0342] Aspect 13: The method of any one of Aspects 1 to 12, wherein identifying the first power control parameter set and the second power control parameter set includes: identifying the value of the target received power and the value of the path loss compensation component for the first power control parameter set and the second power control parameter set.

[0343] Aspect 14: The method of any one of Aspects 1 to 12, wherein identifying the first power control parameter set and the second power control parameter set includes: identifying a value of the target received power for the first power control parameter set and the second power control parameter set.

[0344] Aspect 15: The method of any one of Aspects 1 to 14, wherein identifying the first power control parameter set and the second power control parameter set includes: identifying a target received power value and an offset value for the first power control parameter set; and identifying a target received power value for the second power control parameter set based at least in part on the target received power value for the first power control parameter set and the offset value.

[0345] Aspect 16: The method of any one of Aspects 1 to 15, wherein identifying the first power control parameter set and the second power control parameter set includes: determining that a side link message is associated with a first priority; and identifying the first power control parameter set and the second power control parameter set at least in part based on the first priority.

[0346] Aspect 17: The method of any one of Aspects 1 to 16, wherein identifying the first power control parameter set and the second power control parameter set comprises: receiving a control signal indicating a set of parameters to be used for each geographic region in the geographic region set; identifying the geographic region in which the first UE or the second UE is located; and identifying the first power control parameter set and the second power control parameter set at least in part based on the identified geographic region.

[0347] Aspect 18: A method for wireless communication at a base station, comprising: determining that a first UE is configured with a first power control parameter set and a second power control parameter set; determining at least one first resource for communication with a second UE; transmitting to the first UE a DCI message including an indication that one or both of the first power control parameter set and the second power control parameter set will be used for sidelink messages, at least in part based on the at least one resource for communication with the second UE; and using the at least one resource to communicate with the second UE.

[0348] Aspect 19: The method of aspect 18, wherein determining that the first UE is configured with a first power control parameter set and a second power control parameter set includes: transmitting to the first UE a radio resource control signal or DCI message indicating the first power control parameter set and the second power control parameter set.

[0349] Aspect 20: The method of aspect 18, wherein transmitting the DCI message includes transmitting a DCI having a field having an indication of using one or both of a first set of power control parameters or a second set of power control parameters.

[0350] Aspect 21: The method of aspect 20, wherein the field includes a bit flag.

[0351] Aspect 22: The method of any one of Aspects 18 to 21, wherein transmitting the DCI message includes: transmitting a DCI message for scheduling at least one second resource as a sidelink message.

[0352] Aspect 23: The method of any one of Aspects 18 to 22 further includes: determining the indication based at least in part on identifying that at least one second resource partially overlaps with at least one first resource.

[0353] Aspect 24: The method of any one of Aspects 18 to 22 further includes: determining the indication based at least in part on identifying that at least one second resource is different from at least one first resource.

[0354] Aspect 25: The method of any one of Aspects 18 to 24, transmitting a DCI message includes: transmitting a DCI indicating that the first UE wants to use a first power control parameter set or a second power control parameter set, wherein both the first power control parameter set and the second power control parameter set are associated with downlink path loss from the base station to the first UE.

[0355] Aspect 26: The method of any one of Aspects 18 to 24, wherein transmitting the DCI message includes: transmitting an instruction for the first UE to use a second set of power control parameters for the DCI of a sidelink message, wherein the first set of power control parameters is associated with downlink path loss from the base station to the first UE, and the second set of power control parameters is associated with sidelink path loss.

[0356] Aspect 27: The method of any one of Aspects 18 to 24, wherein transmitting the DCI message includes: transmitting an instruction for the first UE to use both a first power control parameter set and a second power control parameter set for the DCI of a sidelink message, wherein the first power control parameter set is associated with downlink path loss from the base station to the first UE, and the second power control parameter set is associated with sidelink path loss.

[0357] Aspect 28: The method of any one of Aspects 18 to 24, wherein transmitting the DCI message includes: transmitting a DCI indicating that the first UE wants to use a first power control parameter set or a second power control parameter set, wherein both the first power control parameter set and the second power control parameter set are associated with sidelink path loss.

[0358] Aspect 29: The method of any one of Aspects 18 to 28, wherein transmitting the DCI message comprises: transmitting a group-shared DCI message including an indication for each resource in the resource set.

[0359] Aspect 30: The method of any one of Aspects 18 to 28, wherein transmitting the DCI message includes: transmitting a group-shared DCI message including an indication for each UE in the UE set.

[0360] Aspect 31: The method of any one of Aspects 18 to 30, wherein transmitting the DCI message comprises: transmitting to the first UE an indication of a radio network temporary identifier corresponding to a group shared DCI message; and transmitting a group shared DCI including the indication.

[0361] Aspect 32: The method of any one of Aspects 18 to 31, wherein determining that the first UE is configured with a first power control parameter set and a second power control parameter set includes: transmitting a control signal indicating a value of a target received power and a value of a path loss compensation component for the first power control parameter set and the second power control parameter set.

[0362] Aspect 33: The method of any one of Aspects 18 to 31, wherein determining that the first UE is configured with a first power control parameter set and a second power control parameter set includes: transmitting a control signal indicating a value of a target received power for the first power control parameter set and the second power control parameter set.

[0363] Aspect 34: The method of any one of Aspects 18 to 33, wherein determining that the first UE is configured with a first power control parameter set and a second power control parameter set includes: transmitting a control signal indicating a value of a target received power for the first power control parameter set and an offset value of a value of a target received power for the second power control parameter set.

[0364] Aspect 35: The method of any one of Aspects 18 to 34, wherein determining that the first UE is configured with a first power control parameter set and a second power control parameter set includes: transmitting a control signal indicating that the first power control parameter set and the second power control parameter set are associated with a first priority.

[0365] Aspect 36: The method of any one of Aspects 18 to 35 further includes: identifying a geographic region associated with the first UE or a third UE scheduled to receive sidelink messages from the first UE; and determining the indication based at least in part on the geographic region.

[0366] Aspect 37: The method of any one of Aspects 18 to 36, wherein determining that the first UE is configured with a first power control parameter set and a second power control parameter set includes: transmitting a control signal indicating the set of parameters to be used for each geographic region in the geographic region set.

[0367] Aspect 38: A device for wireless communication, comprising at least one means for performing a method as described in any one of aspects 1 to 17.

[0368] Aspect 39: An apparatus for wireless communication, comprising a processor and a memory coupled to the processor, the processor and the memory being configured to perform a method as described in any one of Aspects 1 to 17.

[0369] Aspect 40: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform methods as described in any of Aspects 1 to 17.

[0370] Aspect 41: An apparatus for wireless communication, comprising at least one means for performing the method of any one of aspects 18 to 37.

[0371] Aspect 42: An apparatus for wireless communication, comprising a processor and a memory coupled to the processor, the processor and the memory being configured to perform the method of any one of aspects 18 to 37.

[0372] Aspect 43: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform methods as described in any of Aspects 18 to 37.

[0373] It should be noted that the methods described in this paper describe possible implementations, and the operations and steps can be rearranged or otherwise modified, and other implementations are also possible. Furthermore, aspects from two or more methods can be combined.

[0374] While aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for illustrative purposes, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used in most of the description, the techniques described herein can also be applied to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques can be applied to a variety of other wireless communication systems, such as Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0375] The information and signals described herein can be represented using any of a wide variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or light particles, or any combination thereof.

[0376] The various illustrative boxes and components described herein can 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. The general-purpose processor may be a microprocessor, but in alternatives, 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, multiple microprocessors, one or more microprocessors working in conjunction with a DSP core, or any other such configuration).

[0377] 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 or transmitted as one or more instructions or code on a computer-readable medium. Other examples and implementations fall within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Features implementing the functions may also be physically located in various locations, including being distributed such that different parts of the function are implemented at different physical locations.

[0378] Computer-readable media includes both non-transient computer storage media and communication media, encompassing any medium that facilitates the transfer of a computer program from one location to another. Non-transient storage media can be any available medium accessible to a general-purpose or special-purpose computer. By way of example and not limitation, non-transient computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other non-transient medium that can be used to carry or store desired program code in the form of instructions or data structures and is accessible to a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Similarly, any connection is also legitimately referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then that coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable media. As used in this article, disk and disc include CDs, laser discs, optical discs, DVDs, floppy disks, and Blu-ray discs, where disks often magnetically reproduce data while discs optically reproduce data using lasers. Combinations of these media are also included within the scope of computer-readable media.

[0379] As used herein (including in the claims), the word "or" in an enumeration of items (e.g., an enumeration of items accompanied by phrases such as "at least one of" or "one or more of") indicates an inclusive enumeration, such that an enumeration of at least one of, for example, 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). Similarly, as used herein, the phrase "based on" should not be interpreted as referring to a closed set of conditions. For example, an example step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "at least partially based on".

[0380] In the accompanying drawings, similar components or features may have the same reference numerals. Furthermore, components of the same type may be distinguished by a dash following the reference numeral and a second reference numeral used to differentiate between similar components. If only the first reference numeral is used in the description, the description may apply to any of the similar components having the same first reference numeral, regardless of the second reference numeral or other subsequent reference numerals.

[0381] This document, illustrated with reference to the accompanying drawings, describes exemplary configurations but does not represent all examples that can be implemented or fall within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration" and does not imply "superior" or "outperforming" other examples. This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0382] The description provided herein is intended to enable those skilled in the art to make or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the universal principles defined herein can be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An apparatus for performing wireless communication at a first user equipment (UE), comprising: processor; A memory coupled to the processor, wherein the processor and the memory are configured to: Receive a downlink control information message from a network entity, including an indication that one or both of a first power control parameter set and a second power control parameter set should be used for a sidelink message; as well as The sidelink message is transmitted to the second UE using a transmit power based at least in part on the indication of whether one or both of the first power control parameter set and the second power control parameter set should be used. Wherein, when it is determined that the downlink control information message includes an indication to use both the first power control parameter set and the second power control parameter set for the sidelink message, wherein the first power control parameter set is associated with the downlink path loss from the network entity to the first UE, and the second power control parameter set is associated with the sidelink path loss between the first UE and the second UE, the processor and the memory are configured to: The lower of the first transmit power determined using the first set of power control parameters and the second transmit power determined using the second set of power control parameters is identified. as well as The sidelink message is transmitted using the lower transmit power, at least in part, based on the determination that the downlink control information message includes an indication of using both the first power control parameter set and the second power control parameter set.

2. The apparatus of claim 1, further comprising: An antenna configured to receive, from the network entity, a radio resource control signal or a downlink control information message indicating the first power control parameter set and the second power control parameter set.

3. The apparatus of claim 1, wherein, The downlink control information message includes a field having an indication of whether to use one or both of the first power control parameter set or the second power control parameter set. Furthermore, the processor and the memory are configured to transmit the sidelink message using a transmit power determined based on the values ​​included in the field.

4. The apparatus of claim 3, wherein, The field includes bit flags.

5. The apparatus of claim 1, wherein, The downlink control information message is the sidelink message to be transmitted to the second UE, which schedules at least one resource.

6. The apparatus of claim 1, wherein, When it is determined that the downlink control information message includes an indication to use either the first power control parameter set or the second power control parameter set, wherein both the first power control parameter set and the second power control parameter set are associated with downlink path loss from the network entity to the first UE, The processor and the memory are configured to transmit the sidelink message using a transmit power based at least in part on the first power control parameter set or the second power control parameter set, according to the instructions.

7. The apparatus of claim 1, wherein, When the downlink control information message includes an indication to use the second power control parameter set for the sidelink message, wherein the first power control parameter set is associated with the downlink path loss from the network entity to the first UE, and the second power control parameter set is associated with the sidelink path loss between the first UE and the second UE, The processor and the memory are configured to transmit the sidelink message using a transmit power based at least in part on the second set of power control parameters, according to the instructions.

8. The apparatus of claim 1, wherein, When it is determined that the downlink control information message includes an indication to use either the first power control parameter set or the second power control parameter set, wherein both the first power control parameter set and the second power control parameter set are associated with the sidelink path loss between the first UE and the second UE, The processor and the memory are configured to transmit the sidelink message using a transmit power determined at least in part based on the first power control parameter set or the second power control parameter set, according to the instructions.

9. The apparatus of claim 1, wherein, In order to receive the downlink control information message, the processor and the memory are configured to receive the downlink control information message in a group-shared downlink control information message that includes an indication for each resource in the resource set, wherein the transmit power is determined at least in part based on the resources used for the transmission of the sidelink message.

10. The apparatus of claim 1, wherein, In order to receive the downlink control information message, the processor and the memory are configured to: The downlink control information message is received in a group-shared downlink control information message that includes an indication for each UE in the UE set, wherein the transmit power is determined at least in part based on the indication corresponding to the first UE.

11. The apparatus of claim 1, wherein, The processor and the memory are configured to: Receive from the network entity an indication of a radio network temporary identifier corresponding to a group-shared downlink control information message; The processor and the memory are configured to receive the downlink control information message in a group-shared downlink control information message scrambled by the radio network temporary identifier and including the indication.

12. The apparatus of claim 1, wherein, The first power control parameter set and the second power control parameter set include corresponding values ​​of the target received power and corresponding values ​​of the path loss compensation component.

13. The apparatus of claim 1, wherein, The first power control parameter set includes the target received power value and the offset value, and The target received power value for the second set of power control parameters is based at least in part on the target received power value and the offset value.

14. The apparatus of claim 1, wherein, The sidelink message is associated with the first priority; and The first set of power control parameters and the second set of power control parameters are at least partially based on the first priority.

15. The apparatus of claim 1, wherein, The processor and the memory are further configured to: Receives control signals instructing each geographic region in the set of geographic regions to utilize the set of parameters; and The first power control parameter set and the second power control parameter set are at least partially based on the geographical division.

16. An apparatus for wireless communication at a network entity, comprising: processor; A memory coupled to the processor, wherein the processor and the memory are configured to: A downlink control information message is transmitted to a first user equipment (UE) including an indication that one or both of a first power control parameter set and a second power control parameter set will be used in a sidelink message from the first UE to the second UE. Wherein, when it is determined that the downlink control information message includes an indication to use both the first power control parameter set and the second power control parameter set in the sidelink message, wherein the first power control parameter set is associated with the downlink path loss from the network entity to the first UE, and the second power control parameter set is associated with the sidelink path loss between the first UE and the second UE, the indication causes the first UE to: The sidelink message is transmitted to the second UE using the lower of a first transmit power determined by the first set of power control parameters and a second transmit power determined by the second set of power control parameters.

17. The apparatus of claim 16, wherein, The processor and the memory are further configured to: The first UE is sent a radio resource control signal or a downlink control information message that indicates the first power control parameter set and the second power control parameter set.

18. The apparatus of claim 16, wherein, The downlink control information message includes a field having an indication of whether to use one or both of the first power control parameter set or the second power control parameter set.

19. The apparatus of claim 18, wherein, The field includes bit flags.

20. The apparatus of claim 16, wherein, The downlink control information message is used to schedule at least one second resource for the sidelink message.

21. The apparatus of claim 16, wherein, The indication is based at least in part on the overlap of at least one second resource with at least one first resource, wherein the at least one first resource includes at least one uplink resource and the at least one second resource includes at least one sidelink resource.

22. The apparatus of claim 16, wherein, The geographical region is associated with the first UE or a third UE scheduled to receive sidelink messages from the first UE; and The instructions are based at least in part on geographical regions.

23. The apparatus of claim 16, wherein, The processor and the memory are further configured to: Transmit control signals indicating the set of parameters to be used for each geographic region in the geographic region set.

24. An apparatus for performing wireless communication at a first user equipment (UE), comprising: processor; A memory coupled to the processor, wherein the processor and the memory are configured to: Receive from a network entity a downlink control information message including an indication that one or both of a first power control parameter set and a second power control parameter set should be used in a sidelink message; and The second UE receives sidelink messages based at least in part on the received power indicated regarding the use of one or both of the first power control parameter set and the second power control parameter set. Wherein, when it is determined that the downlink control information message includes an indication to use both the first power control parameter set and the second power control parameter set in the sidelink message, wherein the first power control parameter set is associated with the downlink path loss from the network entity to the first UE, and the second power control parameter set is associated with the sidelink path loss between the first UE and the second UE, the indication causes the second UE to: The sidelink message is transmitted to the first UE using the lower of a first transmit power determined by the first set of power control parameters and a second transmit power determined by the second set of power control parameters.

25. The apparatus of claim 24, wherein, The processor and the memory are configured to: The sidelink message is transmitted to the first UE using the transmit power determined according to the instruction.

26. The apparatus of claim 24, wherein, In order to receive the downlink control information message, the processor and the memory are configured to: The downlink control information message is received in a group-shared downlink control information message that includes an indication for each UE in the UE set.

27. The apparatus of claim 24, wherein, In order to receive the downlink control information message, the processor and the memory are configured to: The downlink control information message is received in a group-shared downlink control information message that includes an indication for each resource in the resource set.

28. A method for conducting wireless communication at a first user equipment (UE), comprising: Receive a downlink control information message from a network entity, including an indication that one or both of a first power control parameter set and a second power control parameter set should be used for a sidelink message; as well as The sidelink message is transmitted to the second UE using a transmit power based at least in part on the indication of whether one or both of the first power control parameter set and the second power control parameter set should be used. When it is determined that the downlink control information message includes an indication to use both the first power control parameter set and the second power control parameter set in the sidelink message, wherein the first power control parameter set is associated with the downlink path loss from the network entity to the first UE, and the second power control parameter set is associated with the sidelink path loss between the first UE and the second UE, transmitting the sidelink message includes: The lower of the first transmit power determined using the first set of power control parameters and the second transmit power determined using the second set of power control parameters is identified. as well as The sidelink message is transmitted using the lower transmit power, at least in part, based on the determination that the downlink control information message includes an indication of using both the first power control parameter set and the second power control parameter set.

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