Semi-persistent scheduling configuration for sidelink communication

Abstract

Methods, systems, and devices are described for wireless communication. A base station can transmit coupled configured grants to a transmitting user equipment (UE) and a receiving UE, respectively. For example, when transmitting a pair of configured grants including a first configured grant to a first UE and a second configured grant to a second UE, the base station can include an indication in each configured grant that sidelink semi-persistent scheduling resources are activated or deactivated. Additionally, the configured grants can indicate which UE is the receiver and which UE is the transmitter. For example, the first configured grant can indicate that the first UE is to be the transmitter, and the second configured grant can indicate that the second UE is to be the receiver.

Description

[0001] Cross-referencing

[0002] This patent application claims the benefit of U.S. Provisional Patent Application No. 63 / 049,019, filed July 7, 2020, entitled “SEMI-PERSISTENT SCHEDULING CONFIGURATIONS FOR SIDELINK COMMUNICATIONS,” and U.S. Patent Application No. 17 / 327,211, filed May 21, 2021, entitled “SEMI-PERSISTENT SCHEDULING CONFIGURATIONS FOR SIDELINK COMMUNICATIONS,” each of which is assigned to the assignee of this application. Technical Field

[0003] The following generally pertains to wireless communication, and in particular to semi-persistent scheduling (SPS) configurations for sidelink communication.

[0004] background

[0005] 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-A Pro 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).

[0006] A wireless multiple access communication system may include one or more base stations or network access nodes, each of which simultaneously supports communication from multiple communication devices, which may also be referred to as user equipment (UEs). In some cases, two or more UEs may communicate with each other via sidelink communication. Additionally, UEs may communicate with each other according to a semi-persistent scheduling (SPS) configuration. For example, an SPS configuration may allocate periodic resources every "X" time slots (e.g., each time slot, each second time slot, each fourth time slot, etc.) to transmit sidelink messages between two UEs. With an SPS configuration, efficient techniques are required to implement and support sidelink communication between UEs.

[0007] Overview

[0008] The described technology relates to improved methods, systems, devices, or apparatuses supporting semi-persistent scheduling (SPS) configuration for sidelink communication. Generally, the described technology enables a base station to indicate a configured permission pair configuration to two (or more) user preparation units (UEs), wherein the configured permission pair configuration includes a sidelink SPS resource allocation for a sidelink channel that the two UEs can use for sidelink communication with each other. The base station can then transmit a first configured permission in the configured permission pair to a first UE based on the configured permission pair configuration, and can transmit a second configured permission in the configured permission pair to a second UE based on the configured permission pair configuration. Based on receiving the first and second configured permissions in the configured permission pair, the first UE and the second UE can determine that the sidelink SPS resource allocation is activated and can use the sidelink SPS resource allocation to communicate with each other (e.g., sidelink communication). The configured permission pair can represent a coupled downlink control information (DCI) message carrying the corresponding configured permission sent to each UE.

[0009] In some implementations, when transmitting each configured permission in a configured permission pair, the base station may indicate which UE is the transmitter and which UE is the receiver of the sidelink communication. For example, the base station may use indications in the corresponding configured permission, bits in the corresponding configured permission, different DCI formats, different Cyclic Redundancy Check (CRC) fields, or combinations thereof, to indicate the transmitter and receiver. Additionally, the base station may transmit indications of configured permissions in a configured permission pair to signal to the UE that SPS resource allocation has been activated or deactivated. Subsequently, the UE may (e.g., via a Media Access Control (MAC) element (CE)) transmit an acknowledgment message to the base station to confirm that SPS resource allocation has been activated or deactivated.

[0010] A method for wireless communication at a UE is described. The method may include: receiving from a base station a configured permission pair configuration indicating sidelink SPS resource allocation for a sidelink channel; receiving from the base station, based on the configured permission pair configuration, a first configured permission in the configured permission pair indicating activation of the sidelink SPS resource allocation for the sidelink channel; and communicating with a second UE on the sidelink channel according to the sidelink SPS resource allocation, based on the first configured permission.

[0011] An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. These instructions are executable by the processor to cause the apparatus to: receive from a base station a configured permission pair configuration indicating sidelink SPS resource allocation for a sidelink channel; receive from the base station, based on the configured permission pair configuration, a first configured permission in the configured permission pair indicating activation of the sidelink SPS resource allocation for the sidelink channel; and communicate with a second UE on the sidelink channel according to the sidelink SPS resource allocation, based on the first configured permission.

[0012] Another apparatus for wireless communication at a UE is described. The apparatus may include means for: receiving from a base station a configured permission pair configuration indicating sidelink SPS resource allocation for a sidelink channel; receiving from the base station, based on the configured permission pair configuration, a first configured permission in the configured permission pair indicating activation of the sidelink SPS resource allocation for the sidelink channel; and communicating with a second UE on the sidelink channel according to the sidelink SPS resource allocation, based on the first configured permission.

[0013] A non-transient computer-readable medium is described, storing code for wireless communication at a UE. The code may include instructions executable by a processor for: receiving from a base station a configured permission pair configuration indicating sidelink SPS resource allocation for a sidelink channel; receiving from the base station, based on the configured permission pair configuration, a first configured permission in the configured permission pair indicating activation of the sidelink SPS resource allocation for the sidelink channel; and communicating with a second UE on the sidelink channel according to the sidelink SPS resource allocation, based on the first configured permission.

[0014] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a first configured permission may include operations, features, means, or instructions for the following action: receiving a first configured permission indicating that the UE is the transmitter of communication with a second UE on a sidelink channel.

[0015] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, communicating with a second UE on a sidelink channel may include operations, features, means, or instructions for transmitting sidelink messages to the second UE via a sidelink SPS resource allocation based on a first configured permission indicating that the UE is the transmitter.

[0016] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a first configured permission may include operations, features, means, or instructions for receiving a first configured permission including bits set to indicate that the UE is a transmitter.

[0017] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a first configured permission may include operations, features, means, or instructions for receiving the first configured permission in a DCI format indicating that the UE is a transmitter.

[0018] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a first configured permission may include an operation, feature, means, or instruction for receiving a first configured permission that includes a CRC field scrambled with a Radio Network Temporary Identifier (RNTI) indicating that the UE is a transmitter.

[0019] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a first configured permission may include operations, features, means, or instructions for the following action: receiving a first configured permission indicating that the UE is the receiver of communications with a second UE on a sidelink channel.

[0020] In some examples of the methods, apparatus (devices) and nontransient computer-readable media described herein, communicating with a second UE on a sidelink channel may include operations, features, means, or instructions for receiving sidelink messages from the second UE via a sidelink SPS resource allocation based on a first configured permission indicating that the UE is the receiver.

[0021] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a first configured permission may include operations, features, means, or instructions for receiving a first configured permission including bits set to indicate that the UE is a receiver.

[0022] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a first configured grant may include operations, features, means, or instructions for receiving the first configured grant in a DCI format indicating that the UE is a receiver.

[0023] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a first configured permission may include operations, features, means, or instructions for receiving a first configured permission that includes a CRC field scrambled with an RNTI indicating that the UE is a receiver.

[0024] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a first configured permission may include operations, features, means, or instructions for the following action: receiving a first configured permission including a new data indicator set to a first value and a resource assignment field set to a second value to indicate activation of a sidelink SPS resource allocation.

[0025] In some examples of the methods, apparatus (devices) and nontransient computer-readable media described herein, receiving a first configured permission may include operations, features, means, or instructions for the following actions: receiving a first configured permission including a field set to a first value indicates activation of a sidelink SPS resource allocation.

[0026] 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 DCI message from a base station indicating that sidelink SPS resource allocation for sidelink channels should be disabled.

[0027] 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 an acknowledgment message to a base station based on receiving the DCI message to confirm the deactivation of sidelink SPS resource allocation for the sidelink channel.

[0028] In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, transmitting an acknowledgment message may include operations, features, means, or instructions for transmitting a MAC CE that includes an acknowledgment message.

[0029] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a first configured permission may include operations, features, means, or instructions for receiving a first configured permission including a CRC scrambled with an RNTI corresponding to the UE and an indication to a second UE for communication on a sidelink channel.

[0030] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a first configured grant may include operations, features, means, or instructions for the following actions: receiving an indication to retransmit communications on a sidelink channel according to a sidelink SPS resource allocation, based on a UE-specific sidelink RNTI for scrambling a CRC of the first configured grant, a new data indicator, a Hybrid Access Request (HARQ) identifier field in the first configured grant, or a combination thereof.

[0031] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a configured permission pair may include operations, features, means, or instructions for receiving a configured permission pair configuration from a base station via a DCI message, Radio Resource Control (RRC) signaling, or a combination thereof.

[0032] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a first configured grant in a configured grant pair may include operations, features, means, or instructions for receiving a DCI message from a base station that includes the first configured grant in the configured grant pair.

[0033] 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 an acknowledgment message to a base station based on receiving a first configured permission to confirm activation of the allocation of sidelink SPS resources for the sidelink channel.

[0034] In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, transmitting an acknowledgment message may include operations, features, means, or instructions for transmitting a MAC CE that includes an acknowledgment message.

[0035] A method for wireless communication at a base station is described. The method may include: transmitting a configured permission pair configuration to a first UE and a second UE, indicating the allocation of sidelink SPS resources for a sidelink channel; transmitting, based on the configured permission pair configuration, a first configured permission in the configured permission pair to the first UE, the first configured permission indicating activation of the allocation of sidelink SPS resources for the sidelink channel; and transmitting, based on the configured permission pair configuration, a second configured permission in the configured permission pair to the second UE, the second configured permission indicating activation of the allocation of sidelink SPS resources for the sidelink channel.

[0036] An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. These instructions are executable by the processor to cause the apparatus to: transmit to a first UE and a second UE a configured permission pair configuration indicating the allocation of sidelink SPS resources for a sidelink channel; transmit to the first UE, based on the configured permission pair configuration, a first configured permission in the configured permission pair indicating activation of the allocation of sidelink SPS resources for the sidelink channel; and transmit to the second UE, based on the configured permission pair configuration, a second configured permission in the configured permission pair indicating activation of the allocation of sidelink SPS resources for the sidelink channel.

[0037] Another apparatus for wireless communication at a base station is described. The apparatus may include means for: transmitting a configured permission pair configuration to a first UE and a second UE, indicating the allocation of sidelink SPS resources for a sidelink channel; transmitting, based on the configured permission pair configuration, a first configured permission in the configured permission pair to the first UE, the first configured permission indicating activation of the allocation of sidelink SPS resources for the sidelink channel; and transmitting, based on the configured permission pair configuration, a second configured permission in the configured permission pair to the second UE, the second configured permission indicating activation of the allocation of sidelink SPS resources for the sidelink channel.

[0038] 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 for: transmitting to a first UE and a second UE a configured permission pair configuration indicating the allocation of sidelink SPS resources for a sidelink channel; transmitting to the first UE, based on the configured permission pair configuration, a first configured permission in the configured permission pair indicating activation of the allocation of sidelink SPS resources for the sidelink channel; and transmitting to the second UE, based on the configured permission pair configuration, a second configured permission in the configured permission pair indicating activation of the allocation of sidelink SPS resources for the sidelink channel.

[0039] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a first configured permission may include operations, features, means, or instructions for: transmitting to a first UE a first configured permission indicating that the first UE is a transmitter communicating with a second UE on a sidelink channel.

[0040] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a first configured permission may include operations, features, means, or instructions for transmitting a first configured permission that includes bits indicating that the UE is a transmitter.

[0041] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a first configured grant may include operations, features, means, or instructions for transmitting the first configured grant in a DCI format indicating that the UE is a transmitter.

[0042] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a first configured permission may include operations, features, means, or instructions for transmitting a first configured permission that includes scrambling a CRC field with an RNTI indicating that the UE is a transmitter.

[0043] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a second configured permission may include operations, features, means, or instructions for the following action: transmitting to a second UE a second configured permission indicating that the second UE is the receiver of communications with the first UE on a sidelink channel.

[0044] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a second configured permission may include operations, features, means, or instructions for transmitting a second configured permission including bits configured to indicate that a second UE is a receiver.

[0045] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a second configured grant may include operations, features, means, or instructions for transmitting the second configured grant in a DCI format indicating that the second UE is a receiver.

[0046] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a second configured permission may include operations, features, means, or instructions for transmitting a second configured permission that includes a CRC field scrambled with an RNTI indicating that the second UE is a receiver.

[0047] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting each configured permission in a configured permission pair may include operations, features, means, or instructions for the following actions: transmitting a first configured permission and a second configured permission, each including a new data indicator set to a first value and a resource assignment field set to a second value, to indicate activation of the opposite link SPS resource allocation.

[0048] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting each configured permission in a configured permission pair may include operations, features, means, or instructions for the following actions: transmitting a first configured permission and a second configured permission, each including a field set to a first value, to indicate activation of the allocation of SPS resources on the opposite side link.

[0049] 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 a DCI message to a first UE, a second UE or both, indicating that the allocation of sidelink SPS resources for the sidelink channel should be disabled.

[0050] 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 an acknowledgment message from a first UE, a second UE or both based on the transmission of a DCI message to acknowledge the deactivation of sidelink SPS resource allocation for the sidelink channel.

[0051] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving an acknowledgment message may include an operation, feature, device, or instruction for receiving a MAC CE that includes an acknowledgment message.

[0052] 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 instructions for resource assignment for sidelink SPS resource allocation.

[0053] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting each configured permission in a configured permission pair may include operations, features, means, or instructions for: transmitting a first configured permission including a first CRC scrambled with a first RNTI corresponding to a first UE and an indication to a second UE, and transmitting a second configured permission including a second CRC scrambled with a second RNTI corresponding to a second UE and an indication to the first UE.

[0054] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means, or instructions for: instructing a transmission pair to retransmit on a sidelink channel according to sidelink SPS resource allocation, based on a first sidelink RNTI specific to a first UE for scrambling a first CRC for a first configured grant, a second sidelink RNTI specific to a second UE for scrambling a second CRC for a second configured grant, a new data indicator in each configured grant of a configured grant pair, a HARQ identifier field in each configured grant of a configured grant pair, or a combination thereof.

[0055] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, transmitting a configured permission pair configuration may include operations, features, means, or instructions for performing actions such as transmitting the configured permission pair configuration to a first UE, a second UE, or both via a DCI message, RRC signaling, or a combination thereof.

[0056] In some examples of the methods, apparatus (devices) and nontransient computer-readable media described herein, transmitting each configured permission in a configured permission pair may include operations, features, means, or instructions for: transmitting to a first UE a first DCI message that includes the first configured permission in the configured permission pair in a coupled DCI message; and transmitting to a second UE a second DCI message that includes the second configured permission in the configured permission pair in a coupled DCI message;

[0057] 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 an acknowledgment message from a first UE, a second UE, or both to confirm activation of the allocation of sidelink SPS resources for the sidelink channel.

[0058] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving an acknowledgment message may include an operation, feature, means, or instruction for receiving a MAC CE that includes an acknowledgment message. Brief description of the attached diagram

[0060] Figure 1 Examples of systems for wireless communication based on various aspects of this disclosure are explained.

[0061] Figure 2 Examples of wireless communication systems according to various aspects of this disclosure are explained.

[0062] Figure 3A and 3BExamples of sidelink communication configurations based on various aspects of this disclosure are explained.

[0063] Figure 4A and 4B Examples of sidelink feedback configurations based on various aspects of this disclosure are explained.

[0064] Figure 5 An example of the process flow for SPS configuration for sidelink communication, based on various aspects of this disclosure, is explained.

[0065] Figure 6 and 7 A block diagram of a device supporting SPS configuration for sidelink communication according to various aspects of this disclosure is shown.

[0066] Figure 8 A block diagram of a communication manager according to various aspects of this disclosure is shown.

[0067] Figure 9 A diagram of a system including a device supporting SPS configuration for sidelink communication is shown according to various aspects of this disclosure.

[0068] Figure 10 and 11 A block diagram of a device supporting SPS configuration for sidelink communication according to various aspects of this disclosure is shown.

[0069] Figure 12 A block diagram of a communication manager supporting SPS configuration for sidelink communication according to various aspects of this disclosure is shown.

[0070] Figure 13 A diagram of a system including a device supporting SPS configuration for sidelink communication is shown according to various aspects of this disclosure.

[0071] Figures 14 to 21 A flowchart illustrating a method for supporting SPS configuration for sidelink communication according to various aspects of this disclosure is shown.

[0072] Detailed description

[0073] In some wireless communication systems, a first User Equipment (UE) can communicate with a second UE over sidelink communication. To enable sidelink communication, a base station can indicate a configured permission pair configuration to both UEs, wherein the configured permission pair configuration includes a sidelink semi-persistent scheduling (SPS) resource allocation for the sidelink channel that the two UEs can use for sidelink communication. Subsequently, the base station can then transmit a first configured permission in the configured permission pair to the first UE based on the configured permission pair configuration, and can transmit a second configured permission in the configured permission pair to the second UE based on the configured permission pair configuration. Based on receiving the first and second configured permissions in the configured permission pair, the first UE and the second UE can determine that the sidelink SPS resource allocation is activated and can use the sidelink SPS resource allocation to communicate with each other (e.g., sidelink communication). The configured permission pair can represent a coupled downlink control information (DCI) message carrying the corresponding configured permission sent to each UE.

[0074] Previously, for sidelink communication, the base station could schedule sidelink resources for use by multiple (e.g., two) UEs for sidelink transmission (e.g., the base station controlled the resource allocation for sidelink communication). In Industrial Internet of Things (I-IoT) systems, the base station controls the resource allocation for each sidelink channel. Before using the allocated sidelink resources for sidelink transmission, the UE can transmit control information messages (e.g., Sidelink Control Information (SCI) messages) to convey control information to enable sidelink transmission. However, transmitting SCIs increases control overhead, especially when sidelink traffic is deterministic and periodic. Furthermore, conventional systems do not provide a mechanism for the semi-static allocation of configured sidelink resources to enable or disable sidelink transmission.

[0075] As described herein, a base station can send coupled configured permissions (e.g., configured permission pairs, coupled DCI messages, etc.) to both the transmitting UE and the receiving UE, thereby eliminating the need for additional DCI and SCI when periodic data is to be transmitted on a sidelink channel (e.g., a Physical Sidelink Shared Channel (PSSCH)). For example, when transmitting a pair of configured permissions including a first configured permission sent to a first UE and a second configured permission sent to a second UE, the base station may include an indication that sidelink SPS resources are activated or deactivated in each configured permission. Additionally, the configured permissions may indicate which UE is the receiving UE and which UE is the transmitting UE. For example, a first configured permission may indicate that the first UE will be the transmitting UE (e.g., including bits set to a first value or using a first DCI format for the transmitting UE), and a second configured permission may indicate that the second UE will be the receiving UE (e.g., including bits set to a second value or using a second DCI format for the receiving UE).

[0076] The aspects of this disclosure are initially described in the context of a wireless communication system. Additionally, the aspects of this disclosure are explained by additional wireless communication systems, sidelink communication configurations, sidelink feedback configurations, and process flows. The aspects of this disclosure are further explained and described by means of, and with reference to, apparatus diagrams, system diagrams, and flowcharts relating to SPS configurations for sidelink communication.

[0077] Figure 1 Examples of a wireless communication system 100 supporting SPS configurations for sidelink communication according to various 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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 the device may also be referred to as a cell, 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 can be implemented in various objects such as appliances or vehicles, instruments, etc.

[0083] 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.

[0084] 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.

[0085] 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).

[0086] 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).

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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 maxThe 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).

[0091] 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.

[0092] 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)).

[0093] 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.

[0094] 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.

[0095] Macrocells typically 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 may be associated with a lower-power base station 105 (compared to macrocells) and may operate in the same or different (e.g., licensed or unlicensed) frequency bands as macrocells. Small cells may provide unrestricted access to UEs 115 that have service subscriptions with a network provider, or may provide restricted access to UEs 115 associated with the small cell (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 may support one or more cells and may also support communication on one or more cells using one or more component carriers.

[0096] 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)).

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] 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).

[0105] Wireless communication system 100 can operate using one or more frequency bands, typically in the range of 300 MHz to 300 GHz. Generally, the 300 MHz to 3 GHz band is 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 lower HF or 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).

[0106] 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.

[0107] 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.

[0108] 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).

[0109] 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 UE 115 and base station 105 or core network 130 supporting user plane data radio bearers. At the physical layer, transport channels can be mapped to physical channels.

[0110] 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.

[0111] In some wireless communication systems, sidelink communication can be supported, where a first UE 115 can communicate directly with a second UE 115. To enable sidelink communication, the base station 105 can control the resource allocation of the sidelink channel and can indicate the resource allocation to the first UE 115, the second UE 115, or both. Before using the resource allocation of the sidelink channel for sidelink communication, the UE 115 can transmit a control information message (e.g., an SCI message) to convey control information to enable sidelink communication. However, transmitting an SCI may increase signaling and control overhead.

[0112] Additionally, in some cases, sidelink communication between the two UEs 115 may occur depending on the SPS configuration. For example, the first UE 115 may transmit a sidelink message to the second UE 115 every 'X' time slots (e.g., every time slot, every second time slot, every fourth time slot, etc.) or every 'X' TTIs. That is, sidelink communication can occur with a deterministic and periodic configuration (e.g., cyclic message exchange). Thus, if both UEs 115 identify the SPS configuration, any control information messages (e.g., SCI messages) transmitted between the two UEs may be unnecessary, and transmitting such signaling for known or determined periodic sidelink traffic may increase signaling overhead and latency.

[0113] The wireless communication system 100 supports efficient techniques for configuring sidelink SPS resource allocation for two UEs 115 that can use the sidelink SPS for sidelink communication with each other. For example, base station 105 can transmit a first configured permission in a configured permission pair to a first UE 115 of the two UEs 115 based on the configured permission pair configuration, and can transmit a second configured permission in a configured permission pair to a second UE 115 of the two UEs 115 based on the configured permission pair configuration. Based on receiving the first and second configured permissions in the configured permission pair, the first UE 115 and the second UE 115 can determine that the sidelink SPS resource allocation is activated and can use the sidelink SPS resource allocation to communicate with each other (e.g., sidelink communication). Additionally, each configured permission in the configured permission pair may include an indication of whether sidelink SPS resources are activated or deactivated, and an indication of which UE 115 is the receiver of sidelink communication and which UE 115 is the transmitter of sidelink communication. Thus, the first UE 115 and the second UE 115 can communicate on the sidelink channel without transmitting SCI or receiving additional control information (e.g., DCI) from base station 105.

[0114] Figure 2Examples of a wireless communication system 200 supporting an SPS configuration for sidelink communication according to various aspects of this disclosure are described. In some examples, the wireless communication system 200 may implement various aspects of the wireless communication system 100. For example, the wireless communication system 200 may include a base station 105-a, a UE 115-a, and a UE 115-b, which may respectively represent as referred to in the reference... Figure 1 Examples of corresponding base station 105 and UE 115 are described below. Additionally, the wireless communication system 200 may support sidelink communication for direct transmission between UE 115-a and UE 115-b. Base station 105-a and UE 115-a may communicate on the resources of carrier 205-a, base station 105-a and UE 115-b may communicate on the resources of carrier 205-b, and UE 115-a and UE 115-b may communicate on the resources of sidelink channel 210.

[0115] In some scenarios, base station 105-a may control the resource allocation for one or more sidelink channels between UEs 115 connected to base station 105-a. For example, UE 115-a and UE 115-b may be UE 115 in an I-IoT system (or V2X system) managed by base station 105-a, where base station 105-a controls the resource allocation of sidelink channel 210 to enable sidelink communication between UE 115-a and UE 115-b. However, when granting permission (e.g., dynamic permission, configured permission, etc.) for resource allocation instructing sidelink communication between UE 115-a and UE 115-b to the transmitting UE 115, base station 105-a may not know which UE 115 is the receiving UE 115.

[0116] As described herein, base station 105-a can transmit coupled DCIs to UE 115-a and UE 115-b, each of which contains permission to transmit to the transmitting UE 115 and the receiving UE 115, respectively, so that an SCI is not required when data is transmitted on sidelink channel 210 (e.g., Physical Sidelink Shared Channel (PSSCH)). Additionally, traffic between UE 115-a and UE 115-b on sidelink channel 210 can occur periodically and deterministically, depending on the SPS configuration. Thus, permission transmitted to UE 115-a and UE 115-b may include configured permission to allocate sidelink SPS resources available for periodic traffic (e.g., as a supplement or replacement to dynamic permission). For example, base station 105-a may transmit a configured grant pair configuration 215 to both UE 115-a and UE 115-b to indicate coupled DCI and sidelink SPS resource allocation. Subsequently, base station 105-a may transmit a first configured grant 220-a to UE 115-a and a second configured grant 220-b to UE 115-b, wherein the first configured grant 220-a and the second configured grant 220-b constitute coupled DCI or coupled configured grant.

[0117] By transmitting a coupled DCI containing configured permission 220 to the corresponding UE 115, base station 105-a can reduce the need for additional DCI and SCI when transmitting periodic data on sidelink channel 210. For example, for deterministic and periodic traffic, periodic DCI and SCI can be omitted. Additionally, the coupled DCI containing configured permission 220 can indicate the activation of sidelink SPS to signal to UE 115 that sidelink SPS resource allocation on sidelink channel 210 is available for UE 115-a and UE 115-b for sidelink communication.

[0118] In some implementations, base station 105-a can transmit a sidelink SPS indicator via CRC scrambling in each configured grant 220. For example, base station 105-a can use a node-specific Radio Network Temporary Identifier (RNTI) to scramble the CRC of each configured grant 220 (e.g., a DCI message) used to activate or deactivate sidelink SPS resource allocation, while another node associated with the sidelink SPS communication can be indicated in an additional field (e.g., a DCI field) of each configured grant 220. That is, as an example, base station 105-a may use the RNTI corresponding to UE 115-a to scramble the CRC of the configured grant 220-a to transmit the first configured grant 220-a, and the configured grant 220-a may also include an indication to UE 115-b (e.g., in an additional field, DCI field, etc.). Additionally, base station 105-a may use the RNTI corresponding to UE 115-b to scramble the CRC of the configured grant 220-b to transmit the second configured grant 220-b, and the configured grant 220-b may also include an indication to UE 115-a. Thus, each UE 115 can identify which configured grant 220 is intended for itself (e.g., based on a node-specific RNTI used to scramble the corresponding CRC of the configured grant 220), and can also determine which UE 115 to communicate with for sidelink communication using sidelink SPS resource allocation.

[0119] When activating sidelink SPS resource allocation using configured permission 220, base station 105-a can also indicate which UE 115 is the transmitter (e.g., transmitter-specified) and which UE 115 is the receiver (e.g., receiver-specified) for sidelink communication. In some implementations, base station 105-a can use the same DCI format to activate or deactivate sidelink SPS resource allocation on both the transmitter and receiver sides, but can indicate which UE 115 is the transmitter and which UE 115 is the receiver by using different field values. For example, each configured permission 220 (e.g., each DCI in a coupled DCI) may contain bits indicating whether the receiver of the configured permission 220 should consider itself as the transmitter UE 115 or the receiver UE 115. By using the same DCI format but different field values ​​to indicate the sender and receiver, base station 105-a can use node-specific RNTIs (e.g., sidelink-configured scheduling RNTIs (SL-CS-RNTI)) for both the sender UE 115 and the receiver UE 115. Alternatively, sender and receiver designations can be distinguished without different field values, and base station 105-a can indicate which UE 115 is the receiver and which is the sender based on destination node-specific RNTIs (e.g., receiver-specific SL-CS-RNTIs (SL-CS-Rx-RNTIs) and sender-specific SL-CS-RNTIs (SL-CS-Tx-RNTIs)).

[0120] Additionally or alternatively, to indicate which UE 115 is the transmitter and which is the receiver for sidelink communication, base station 105-a may use different DCI formats for the corresponding configured grant 220 when transmitting the configured grant to activate or deactivate sidelink SPS resource allocation at the transmitter and receiver. For example, base station 105-a may use a first DCI format to transmit a first configured grant 220-a to indicate whether UE 115-a is the transmitter or receiver, and may use a second DCI format to transmit a second configured grant 220-b to indicate whether UE 115-b is a complementary receiver or transmitter for sidelink communication. By using different DCI formats to transmit the configured grant 220, base station 105-a can use a node-specific RNTI (e.g., SL-CS-RNTI) for both the transmitter and receiver UE 115.

[0121] As previously described, a coupled DCI containing configured permission 220 can indicate activation (or deactivation) of sidelink SPS resource allocation. In some implementations, base station 105-a can implicitly indicate activation of sidelink SPS resource allocation using the coupled DCI and fields within configured permission 220. For example, base station 105-a can indicate activation of sidelink SPS resource allocation by using a CRC in the DCI to indicate sidelink SPS communication, including a new data indicator bit set to a value (e.g., "0") in the DCI, and indicating frequency and time resource allocation for sidelink SPS communication. If UE 115, receiving these DCIs and configured permission 220, determines that the CRC indicates SPS communication, no new data is incoming, and frequency and time resource allocation is feasible, then UE 115 can determine that the indicated sidelink SPS resource allocation is activated. Alternatively, if base station 105-a includes the same new data indicator in the DCI (e.g., set to "0"), but frequency and time resource assignments are both set to zero, then UE 115 can determine that sidelink SPS resource allocation is disabled. Base station 105-a can use explicit fields in the DCI or configured grant 220 to indicate activation or deactivation, rather than using implicit indications to activate or deactivate sidelink SPS resource allocation.

[0122] On the UE side, after receiving the configured permission pair configuration 215 indicating sidelink SPS resource allocation and the coupled DCI, along with the corresponding configured permission 220, UE 115-a and UE 115-b can monitor the downlink channel (e.g., the Physical Downlink Control Channel (PDCCH)) to look for possible activation or deactivation of sidelink SPS resource allocation for sidelink communication. During monitoring, UE 115-a and UE 115-b can receive a first configured permission 220-a and a second configured permission 220-b, respectively. If each UE 115 determines that the CRC of the corresponding configured permission 220 (e.g., DCI) indicates sidelink SPS, each UE 115 can identify itself as a transmitter or receiver (e.g., from the DCI or the configured permission). Additionally, each UE 115 can identify whether the DCI indicates activation or deactivation of sidelink SPS resource allocation. If activation or deactivation is associated with an existing configuration indicated in the DCI (e.g., the indicated sidelink SPS resource allocation) (e.g., configured grant 220), each UE 115 may activate or deactivate the corresponding configuration. Alternatively, if activation or deactivation is not tied to an existing configuration, each UE 115 may store and activate the configuration indicated in the DCI. Subsequently, if activated, the UE 115 may transmit or receive SPS data via sidelink channel 210 (e.g., PSSCH) according to each stored configuration, and may suppress the transmission of the SCI along with the SPS data.

[0123] Additionally, UE 115-a and UE 115-b can monitor downlink channels (e.g., PDCCH) to look for possible retransmission instructions from base station 105-a. For example, for sidelink communication on sidelink channel 210, base station 105-a can use a coupled DCI and a configured grant 220 to indicate the HARQ procedure and retransmission strategy. For dynamic retransmission, retransmission on sidelink channel 210 can occur on dynamic resources granted by base station 105-a. Base station 105-a can use several fields within the DCI carrying the configured grant 220 to indicate the retransmission grant (e.g., using the configured grant 220). For example, base station 105-a may use a node-specific sidelink RNTI or a receiver-specific sidelink RNTI (e.g., sidelink receiver RNTI (SL Rx RNTI)) to scramble the CRC of each DCI (e.g., each configured permission 220) in the coupled DCI, set the new data indicator to "1", and set the HARQ identifier field within the DCI to be equal to the HARQ identifier of the sidelink SPS communication.

[0124] Figure 3A and 3BExamples of sidelink communication configurations 300 and 301 according to various aspects of this disclosure are explained. In some examples, sidelink communication configurations 300 and 301 may implement various aspects of wireless communication systems 100 and 200. For example, sidelink communication configurations 300 and 301 may include base station 105-b, UE 115-c, and UE 115-d, which may be respectively as referred to Figure 1 and 2 Examples of base station 105 and UE 115 described. In some cases, sidelink communication configurations 300 and 301 may represent factory automation systems (e.g., I-IoT), where UE 115-c and UE 115-d represent sensors / actuators (S / A).

[0125] Additionally, sidelink communication configurations 300 and 301 may include a programmable logic controller (PLC) 305 (e.g., a wireless PLC). The PLC 305 can provide cyclic switching between base station 105-b, UE 115-c, and UE 115-d. In some scenarios, base station 105-b may transmit mission-critical traffic to UE 115-c and UE 115-d via the PLC 305, where the mission-critical traffic is deterministic and periodic (e.g., transmitted according to periodic scheduling or SPS). For example, base station 105-b may communicate with the PLC 305 on resources of carrier 310, and the PLC 305 may subsequently communicate with UE 115-c on resources of carrier 315-a and with UE 115-d on resources of carrier 315-b. Alternatively or alternatively, UE 115-c may communicate directly with base station 105-b on the resources of carrier 320-a, while UE 115-d may also communicate directly with base station 105-b on the resources of carrier 310-b.

[0126] In some cases, communication between PLC 305 and UE 115 may include a small application-layer payload (e.g., 40 to 256 bytes), where signaling overhead is minimized due to various headers. Additionally, communication may include stringent latency and reliability requirements (e.g., for mission-critical traffic). For example, latency requirements may include a latency of one (1) to two (2) milliseconds, while reliability requirements may include 10 milliseconds. -6 Reliability. In some cases, both data and control channels can be designed to meet overall reliability and latency requirements. For example, as seen in sidelink communication configuration 301, PLC 305 can transmit message 325 (e.g., downlink telegram) to UE 115, where the transmission of message 325 can elapse a first time amount (T). D-DL Subsequently, UE 115 can spend a second amount of time (T). APThe UE 115 processes message 325 and prepares message 330 for response to PLC 305. Subsequently, the UE 115 can transmit message 330 (e.g., an uplink telegram) to PLC 305, where the transmission elapses a third time amount (T). D-UL The PLC 305 can then spend a fourth time amount (T). AP ) to process message 330. Each of these times can increase the cycle time (T) used to transmit messages between PLC 305 and UE 115. cyc The loop time must meet the waiting time requirement.

[0127] As part of a factory automation system, each PLC may have a large number of S / As (e.g., UE 115) (e.g., approximately 20-50 S / As per PLC), and there may be many PLCs in the facility (e.g., 100-1000 PLCs). Enabling wireless connectivity for PLCs can reduce reconfiguration costs on the factory floor. In some cases, PLCs may be located close to the machines (e.g., S / As, UE 115, etc.), while base station 105 (e.g., base station 105-b) may be mounted on the ceiling. PLC 305 can communicate with S / As (e.g., UE 115-c and UE 115-d) on a side link (e.g., carrier 315) via a PC5 interface to support side link communication, and PLC 305 can communicate with base station 105-b on carrier 310 via a Uu interface.

[0128] Using the techniques described herein, base station 105-b can activate or deactivate sidelink SPS resource allocation by transmitting coupled DCI and configured permission to UE 115-c and UE 115-d directly or via PLC 305. Subsequently, after sidelink SPS resource allocation is activated, UE 115-c and UE 115-d can then communicate with each other directly or via PLC 305.

[0129] Figure 4A and 4B Examples of sidelink feedback configurations 400 and 401 according to various aspects of this disclosure are explained. In some examples, sidelink feedback configurations 400 and 401 may implement various aspects of wireless communication systems 100 and 200. For example, sidelink feedback configurations 400 and 401 may include base station 105-c, UE 115-e, and UE 115-f, which may be respectively as referred to Figure 1-3BExamples of base station 105 and UE 115 described herein. In some cases, sidelink feedback configurations 400 and 401 may represent a V2X system, where UE 115-c and UE 115-d represent vehicles. Additionally, base station 105-c may communicate with UE 115-e using the Uu interface on resources of carrier 405, and UE 115-e and UE 115-f may communicate with each other using the PC5 interface on resources of carrier (e.g., sidelink communication).

[0130] To enable communication between UE 115-e and UE 115-f using the PC5 interface and connection, base station 105-c can schedule sidelink resources for UE 115-e to use for sidelink transmission. In some cases, base station 105-c can use dynamic permission, configured permission type 1, configured permission type 2, or a combination thereof to transmit indications of sidelink resources to be used for sidelink transmission. In some cases, base station 105-c can activate configured permission type 1 via RRC signaling.

[0131] Alternatively or concurrently, base station 105-c may use a Type 2 DCI format (e.g., DCI 3_0) to transmit dynamic and configured grants on downlink channels (e.g., carrier 405, PDCCH, etc.). For example, the DCI may be a dynamic grant and may be provided for one-time allocation on a sidelink (e.g., carrier 410). For dynamic grants, the CRC of the DCI carrying the dynamic grant may be scrambled by a sidelink RNTI (SL-RNTI). Alternatively or concurrently, the DCI may activate or deactivate configured Type 2 grants for the sidelink, wherein the CRC of the DCI carrying the configured Type 2 grant is scrambled by an SL-CS-RNTI. In some cases, UE 115 receiving a DCI carrying the configured Type 2 grant may use a MAC control element (MAC-CE) to report activation or deactivation confirmation. For example, if base station 105-c transmits a DCI to UE 115-e to activate the configured permission type 2, and UE 115-e successfully receives and decodes the DCI, UE 115-e may transmit a MAC-CE to acknowledge the reception of the DCI and confirm that the configured permission type 2 has been activated or deactivated. Additionally, UE 115 may use MAC-CE to report a sidelink buffer status report (BSR) to base station 105-c. In some cases, UE 115 may select a modulation and coding scheme (MCS) for the sidelink, where the selected MCS falls within the constraints set by base station 105-c.

[0132] As shown in the reference sidelink feedback configuration 401, base station 105-c, UE 115-e, and UE 115-f can follow physical layer protocols to activate (or deactivate) configured type 2 resources for V2X. Initially, base station 105-c can use a DCI format (e.g., DCI 3_0) to deliver a configured grant 415 (e.g., configured grant type 2) to the transmitting UE 115 (e.g., UE 115-e) to activate (or deactivate) sidelink resources. In some cases, DCI format 3_0 can be used to schedule the Physical Sidelink Control Channel (PSCCH) and PSCCH within a cell. The CRC of DCI format 3_0 can be scrambled by SL-RNTI or SL-CS-RNTI. Additionally, DCI format 3_0 may include time slots, HARQ process identifiers, new data indicators, a minimum index to the subchannel allocation for the initial transmission, first-stage SCI format 0-1 fields (e.g., to indicate frequency resource allocation, time resource allocation, or both), a physical sidelink feedback channel (PSFCH) to HARQ feedback timing indicator, a physical uplink control channel (PUCCH) resource indicator, a configuration index, or a combination thereof.

[0133] Subsequently, the transmitting UE can confirm the activation (or deactivation) of the sidelink resource via MAC-CE. Once activated, the transmitting UE 115 can use different SCI formats (e.g., SCI 0-1 and SCI 0-2) to schedule and transmit data to the receiving UE 115 on the sidelink resource via PSSCH according to the configured permission 415 (e.g., configured permission type 2). For example, UE 115-e can transmit sidelink transmission 420 to UE 115-f. First-stage SCI format 0-1 can be used to schedule the PSSCH, while second-stage SCI can be used on the PSSCH. SCI format 0-1 may include a priority field (e.g., three (3) bits), frequency resource allocation, time resource allocation, resource reservation period, demodulation reference signal (DMRS) mode, second-stage SCI format (e.g., for broadcast, unicast, multicast, etc.), β offset indicator, indication of the number of DMRS ports (e.g., one bit, MCS, one or more reserved bits (e.g., two (2) to four (4) bits determined by higher-level parameters (sl-NumReservedBits)) or a combination thereof. Second-stage SCI format 0-2 can be used to decode PSSCH. SCI Format 0-2 may include a HARQ procedure identifier, a new data indicator (e.g., one (1) bit), an indication of a redundant version (e.g., two (2) bits), a source identifier (e.g., eight (8) bits), a destination identifier (e.g., 16 bits), a channel state information (CSI) request (e.g., one (1) bit), or a combination thereof. Additionally, if the corresponding second-stage SCI format field in SCI format 0-1 indicates type 1 multicast, then SCI format 0-2 may further include a region identifier (e.g., 12 bits) and a communication range requirement (e.g., four (4) bits).

[0134] After receiving sidelink transmission 420, the receiving UE 115 (e.g., UE 115-f) may send sidelink feedback 425 (e.g., acknowledgment feedback) on the PSFCH when receiving each transmission according to the configured grant 415 (e.g., configured grant type 2). The transmitting UE 115 may then forward the sidelink feedback 425 in feedback 430 to the base station 105-c on the uplink channel (e.g., PUCCH).

[0135] As described herein, base station 105-c may indicate activation of sidelink SPS resources when transmitting configured grant 415, instead of transmitting SCI using a different SCI format before transmitting sidelink transmission 420. Accordingly, UE 115-e may then transmit sidelink transmission 420 without additional DCI, grant, or SCI. Additionally, base station 105-c may transmit coupled (e.g., corresponding, related, etc.) configured grant 415 to UE 115-f, such that UE 115-f can identify sidelink SPS resources to know when and where to receive sidelink transmission 420. Both UE 115-e and UE 115-f may transmit MAC CE to acknowledge receipt of the corresponding configured grant and confirm that the sidelink SPS resources are activated. Subsequently, if base station 105-c needs to disable sidelink SPS resources (e.g., sidelink communication between UE 115-e and UE 115-f is no longer needed, UE 115-e or UE 115-f is disabled or needs repair, etc.), base station 105-c can transmit a DCI to both UE 115-e and UE 115-f to indicate the disabling of sidelink SPS resources. Accordingly, UE 115-e and UE 115-f can retransmit a MAC CE to acknowledge receipt of the corresponding DCI and confirm that the sidelink SPS resources have been disabled.

[0136] Figure 5 Examples of a process flow 500 supporting SPS configuration for sidelink communication according to various aspects of this disclosure are described. In some examples, process flow 500 may implement various aspects of wireless communication systems 100 and 200. For example, process flow 500 may include base station 105-d, UE 115-g, and UE 115-h, which may be respectively as referred to Figure 1 -4 describes examples of corresponding base station 105 and UE 115.

[0137] In the following description of process flow 500, operations between UE 115-g, UE 115-h and base station 105-d may be transmitted in a different order than shown, or operations performed by base station 105-d, UE 115-g, and UE 115-h may be performed in a different order or at different times. Some operations may also be excluded from process flow 500, or other operations may be added to process flow 500. Base station 105-d, UE 115-g, and UE 115-h are shown performing several operations of process flow 500; in some cases, any wireless device may perform the operations shown.

[0138] At point 505, base station 105-d may transmit a configured permission pair configuration indicating sidelink SPS resource allocation for the sidelink channel to UE 115-g (e.g., the first UE) and UE 115-h (e.g., the second UE). For example, UE 115-g may receive the configured permission pair configuration. In some cases, UE 115-g may receive the configured permission pair configuration from base station 105-d via DCI message, RRC signaling, or a combination thereof.

[0139] At 510, base station 105-d may transmit a first configured permission in a configured permission pair to UE 115-g based on a configured permission pair configuration, wherein the first configured permission indicates activation of sidelink SPS resource allocation for the sidelink channel. In some cases, UE 115-g may receive a first configured permission indicating that UE 115-g is the transmitter in communication with UE 115-h on the sidelink channel. For example, UE 115-g may receive a first configured permission including bits set to indicate that UE 115-g is the transmitter. Additionally or alternatively, UE 115-g may receive the first configured permission in a DCI format indicating that UE 115-g is the transmitter. In some cases, UE 115-g may receive a first configured permission including a CRC field scrambled with an RNTI indicating that UE 115-g is a transmitter (e.g., SL-CS-Tx-RNTI, SL-CS-RNTI, etc.).

[0140] At 515, base station 105-d can transmit a second configured permission in a configured permission pair to UE 115-h based on a configured permission pair configuration, wherein the second configured permission indicates activation of sidelink SPS resource allocation for the sidelink channel. In some cases, UE 115-h can receive a second configured permission indicating that UE 115-h is the receiver of communication with UE 115-g on the sidelink channel. For example, UE 115-h can receive a second configured permission including bits set to indicate that UE 115-h is the receiver. Additionally or alternatively, UE 115-h can receive the second configured permission in a DCI format indicating that UE 115-h is the receiver. In some cases, UE 115-h may receive a second configured permission including a CRC field scrambled with an RNTI indicating that UE 115-h is a receiver (e.g., SL-CS-Rx-RNTI, SL-CS-RNTI, etc.).

[0141] In some cases, when transmitting each configured permission in a configured permission pair, base station 105-d may transmit a first configured permission, which includes a first CRC scrambled with a first RNTI corresponding to UE 115-g and an indication to UE 115-h, and may transmit a second configured permission, which includes a second CRC scrambled with a second RNTI corresponding to UE 115-h and an indication to UE 115-g. Additionally, base station 105-d may transmit a first DCI message to UE 115-g comprising a first configured permission in a coupled DCI message, and may transmit a second DCI message to UE 115-h comprising a second configured permission in a coupled DCI message, and may transmit a second DCI message to UE 115-h comprising a second configured permission in a coupled DCI message, and may transmit a second configured permission in a coupled DCI message, to UE 115-h. In some cases, base station 105-d may transmit an indication of resource allocation for sidelink SPS resource allocation (e.g., in each configured permission). Additionally, base station 105-d may transmit an indication for retransmission on the sidelink channel based on sidelink SPS resource allocation, based on a first sidelink RNTI for scrambling a first CRC for a first configured grant specific to UE 115-g, a second sidelink RNTI for scrambling a second CRC for a second configured grant specific to UE 115-h, a new data indicator in each configured grant of the configured grant pair, a HARQ identifier field in each configured grant of the configured grant pair, or a combination thereof.

[0142] Upon receiving a first configured grant and a second configured grant, UE 115-g and UE 115-h may respectively receive the first configured grant and the second configured grant, which include a new data indicator set to a first value and a resource assignment field set to a second value to indicate activation of sidelink SPS resource allocation. Additionally or alternatively, UE 115-g and UE 115-h may respectively receive the first configured grant and the second configured grant, which include a field set to a first value to indicate activation of sidelink SPS resource allocation.

[0143] At 520, UE 115-g may transmit an acknowledgment message to base station 105-d based on receiving a first configured grant, to confirm activation of sidelink SPS resource allocation for the sidelink channel. In some cases, UE 115-g may transmit a MAC CE including the acknowledgment message.

[0144] At 525, UE 115-h may transmit an acknowledgment message to base station 105-d based on receiving a second configured grant to confirm activation of sidelink SPS resource allocation for the sidelink channel. In some cases, UE 115-h may transmit a MAC CE including the acknowledgment message.

[0145] At 530, UE 115-g can communicate with UE 115-h on a sidelink channel based on a first configured permission and a second configured permission, according to the sidelink SPS resource allocation. For example, UE 115-g can transmit sidelink messages to UE 115-h via sidelink SPS resource allocation based on a first configured permission indicating that UE 115-g is the transmitter, while UE 115-h can receive sidelink messages from UE 115-b via sidelink SPS resource allocation based on a second configured permission indicating that UE 115-h is the receiver.

[0146] At 535, base station 105-d may transmit a DCI message to UE 115-g, UE 115-h, or both, indicating that sidelink SPS resource allocation for sidelink channels should be disabled.

[0147] At point 540, UE 115-g can transmit an acknowledgment message to base station 105-d based on the received DCI message to acknowledge the deactivation of sidelink SPS resource allocation for the sidelink channel. In some cases, UE 115-g can transmit a MAC CE including the acknowledgment message.

[0148] At point 545, UE 115-h can transmit an acknowledgment message to base station 105-d based on the received DCI message to acknowledge the deactivation of sidelink SPS resource allocation for the sidelink channel. In some cases, UE 115-g can transmit a MAC CE including the acknowledgment message.

[0149] Figure 6 A block diagram 600 of a device 605 supporting an SPS configuration for sidelink communication according to various aspects of this disclosure is shown. Device 605 may be an example of various aspects of a 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).

[0150] 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 SPS configuration for sidelink communication). 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 920 described. The receiver 610 may utilize a single antenna or an array of antennas.

[0151] Communication manager 615 may receive from a base station a configured permission pair configuration indicating sidelink SPS resource allocation for a sidelink channel. Additionally, communication manager 615 may receive from the base station, based on the configured permission pair configuration, a first configured permission in the configured permission pair indicating activation of sidelink SPS resource allocation for the sidelink channel. In some cases, communication manager 615 may communicate with a second UE on a sidelink channel based on the first configured permission and the sidelink SPS resource allocation. Communication manager 615 may be an example of aspects of communication manager 910 described herein.

[0152] In some examples, the UE communication manager 615, as described herein, can be implemented to achieve one or more potential advantages for UE 115. For example, by using information included in a configured grant in a configured grant pair, UE 115 can transmit sidelink messages to a second UE 115 without transmitting SCI or other control information before transmitting sidelink messages. Thus, UE 115 can reduce signaling overhead and reduce latency for sidelink messages.

[0153] The communication manager 615 or its sub-components may be implemented in hardware, code executed by a processor (e.g., 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 performed by a general-purpose 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 in this disclosure.

[0154] The communication manager 615 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 615 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of this disclosure, the communication manager 615 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in this disclosure, or combinations thereof.

[0155] 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 920 described. The transmitter 620 may utilize a single antenna or an array of antennas.

[0156] Figure 7 A block diagram 700 of a device 705 supporting an SPS configuration for sidelink communication according to 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).

[0157] 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 SPS configuration for sidelink communication). 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 920 described. The receiver 710 may utilize a single antenna or an array of antennas.

[0158] Communication manager 715 may be an example of aspects of communication manager 615 as described herein. Communication manager 715 may include a configured permission configuration component 720, a configured permission component 725, and an SPS sidelink communication component 730. Communication manager 715 may be an example of aspects of communication manager 910 as described herein.

[0159] The configured permission configuration component 720 can receive from the base station a configured permission pair configuration indicating the allocation of sidelink SPS resources for the sidelink channel.

[0160] The configured granting component 725 can receive a first configured grant in a configured grant pair from the base station based on the configured grant pair configuration, the first configured grant indicating activation of sidelink SPS resource allocation for sidelink channels.

[0161] The SPS sidelink communication component 730 can communicate with the second UE on the sidelink channel based on the first configured permission and the allocation of sidelink SPS resources.

[0162] Based on the technology for communicating with a second UE on a sidelink channel according to sidelink SPS resource allocation based on configured permission, the processor of UE 115 (e.g., as referred to) Figure 9 The described control receiver 710, transmitter 735, or transceiver 920 can reduce the latency and signaling overhead incurred due to the transmission of control messages with the second UE before communication can be established on the side link channel. Additionally, the processor of UE 115 can reduce battery consumption and power consumption by decreasing the amount of signaling required for preparation and processing caused by control message transmission.

[0163] 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 920 described. The transmitter 735 may utilize a single antenna or an array of antennas.

[0164] Figure 8 A block diagram 800 of a communication manager 805 supporting SPS configuration for sidelink communication according to various 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 configured permission configuration component 810, a configured permission component 815, an SPS sidelink communication component 820, a sidelink transmitter component 825, a sidelink receiver component 830, an SPS resource activation component 835, and an SPS resource deactivation component 840. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0165] The configured permission configuration component 810 can receive from the base station a configured permission pair configuration indicating the allocation of sidelink SPS resources for a sidelink channel. In some examples, the configured permission configuration component 810 can receive the configured permission pair configuration from the base station via a DCI message, RRC signaling, or a combination thereof.

[0166] The configured granting component 815 can receive a first configured grant from the base station based on the configured grant pair configuration, the first configured grant indicating activation of sidelink SPS resource allocation for the sidelink channel. In some examples, the configured granting component 815 can receive a first configured grant including cyclic redundancy check scrambled with a radio network temporary identifier corresponding to the UE and an indication of a second UE for communication on the sidelink channel. In some examples, the configured granting component 815 can receive an indication for retransmitting communication on the sidelink channel according to the sidelink SPS resource allocation based on a UE-specific sidelink radio network temporary identifier scrambled for the cyclic redundancy check of the first configured grant, a new data indicator, a hybrid access request identifier field in the first configured grant, or a combination thereof. In some examples, the configured granting component 815 can receive a downlink control information message from the base station including the first configured grant in the configured grant pair.

[0167] The SPS sidelink communication component 820 can communicate with the second UE on the sidelink channel based on the first configured permission and the sidelink SPS resource allocation.

[0168] The sidelink transmitter component 825 may receive a first configured permission indicating that the UE is a transmitter in communication with the second UE on the sidelink channel. In some examples, the sidelink transmitter component 825 may transmit a sidelink message to the second UE via sidelink SPS resource allocation based on the first configured permission indicating that the UE is a transmitter. In some examples, the sidelink transmitter component 825 may receive a first configured permission including bits set to indicate that the UE is a transmitter. In some examples, the sidelink transmitter component 825 may receive the first configured permission in a downlink control information format indicating that the UE is a transmitter. In some examples, the sidelink transmitter component 825 may receive a first configured permission including a cyclic redundancy check field scrambled with a radio network temporary identifier indicating that the UE is a transmitter.

[0169] Sidelink receiver component 830 may receive a first configured permission indicating that the UE is a receiver in communication with the second UE on the sidelink channel. In some examples, sidelink receiver component 830 may receive sidelink messages from the second UE via sidelink SPS resource allocation based on the first configured permission indicating that the UE is a receiver. In some examples, sidelink receiver component 830 may receive a first configured permission including bits set to indicate that the UE is a receiver. In some examples, sidelink receiver component 830 may receive the first configured permission in a downlink control information format indicating that the UE is a receiver. In some examples, sidelink receiver component 830 may receive a first configured permission including a cyclic redundancy check field scrambled with a radio network temporary identifier indicating that the UE is a receiver.

[0170] SPS resource activation component 835 may receive a first configured permission, including a new data indicator set to a first value and a resource assignment field set to a second value, to indicate activation of sidelink SPS resource allocation. In some examples, SPS resource activation component 835 may receive a first configured permission, including a field set to a first value, to indicate activation of sidelink SPS resource allocation. In some examples, SPS resource activation component 835 may transmit an acknowledgment message to the base station based on receiving the first configured permission to acknowledge activation of sidelink SPS resource allocation for the sidelink channel. In some examples, SPS resource activation component 835 may transmit a Media Access Control (MAC) control element including the acknowledgment message.

[0171] SPS resource deactivation component 840 can receive from a base station a downlink control information message indicating the deactivation of sidelink SPS resource allocation for the sidelink channel. In some examples, SPS resource deactivation component 840 can transmit an acknowledgment message to the base station based on the received downlink control information message to confirm the deactivation of sidelink SPS resource allocation for the sidelink channel. In some examples, SPS resource deactivation component 840 can transmit a media access control (MAC) control element including the acknowledgment message.

[0172] Figure 9 A diagram of a system 900 including device 905 supporting SPS configuration for sidelink communication according to various 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, an I / O controller 915, a transceiver 920, an antenna 925, a memory 930, and a processor 940. These components may be in electronic communication via one or more buses (e.g., bus 945).

[0173] The communication manager 910 can receive from the base station a configured permission pair configuration indicating the allocation of sidelink SPS resources for a sidelink channel. Additionally, the communication manager 910 can receive from the base station, based on the configured permission pair configuration, a first configured permission in the configured permission pair indicating activation of the sidelink SPS resource allocation for the sidelink channel. In some cases, the communication manager 910 can communicate with a second UE on the sidelink channel according to the sidelink SPS resource allocation based on the first configured permission.

[0174] The I / O controller 915 manages the input and output signals of the device 905. The I / O controller 915 can also manage peripheral devices not integrated into the device 905. In some cases, the I / O controller 915 may represent a physical connection or port to an external peripheral device. In some cases, the I / O controller 915 may utilize an operating system, such as... MS- MS- OS / Or another known operating system. In other cases, the I / O controller 915 may represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 915 may be implemented as part of a processor. In some cases, a user may interact with the device 905 via the I / O controller 915 or via hardware components controlled by the I / O controller 915.

[0175] Transceiver 920 can communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, transceiver 920 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 920 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.

[0176] In some cases, a wireless device may include a single antenna 925. However, in other cases, the device may have more than one antenna 925, which may be able to transmit or receive multiple wireless transmissions concurrently.

[0177] Memory 930 may include random access memory (RAM) and read-only memory (ROM). Memory 930 may store computer-readable, computer-executable code 935, including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, memory 930 may particularly include a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0178] Processor 940 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, central processing units (CPUs), microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 940 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 940. Processor 940 may be configured to execute computer-readable instructions stored in memory (e.g., memory 930) to cause device 905 to perform various functions (e.g., functions or tasks supporting SPS configuration for sidelink communication).

[0179] Code 935 may include instructions for implementing various aspects of this disclosure, including instructions for supporting wireless communication. Code 935 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, code 935 may not be directly executed by processor 940, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0180] Figure 10 A block diagram 1000 of a device 1005 supporting an SPS configuration for sidelink communication according to various aspects of this disclosure is shown. Device 1005 may be an example of various 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).

[0181] 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 SPS configuration for sidelink communication). 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 herein. The receiver 1010 may utilize a single antenna or an array of antennas.

[0182] Communication manager 1015 may transmit a configured permission pair configuration indicating the allocation of sidelink SPS resources for a sidelink channel to a first UE and a second UE. In some cases, communication manager 1015 may transmit a first configured permission in a configured permission pair to the first UE based on the configured permission pair configuration, the first configured permission indicating activation of the allocation of sidelink SPS resources for the sidelink channel. Additionally, communication manager 1015 may transmit a second configured permission in a configured permission pair to the second UE based on the configured permission pair configuration, the second configured permission indicating activation of the allocation of sidelink SPS resources for the sidelink channel. Communication manager 1015 may be an example of aspects of communication manager 1310 described herein.

[0183] The communication manager 1015 or its sub-components may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functionality of the communication manager 1015 or its sub-components may be performed by a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.

[0184] 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, I / O components, transceivers, network servers, another computing device, one or more other components described in this disclosure, or combinations thereof).

[0185] 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 described. The transmitter 1020 may utilize a single antenna or an array of antennas.

[0186] Figure 11A block diagram 1100 of a device 1105 supporting an SPS configuration for sidelink communication according to aspects of this disclosure is shown. Device 1105 may be an example of aspects of device 1005 or base station 105 as described herein. Device 1105 may include a receiver 1110, a communication manager 1115, and a transmitter 1135. 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).

[0187] 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 SPS configuration for sidelink communication). 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.

[0188] Communication manager 1115 may be an example of aspects of communication manager 1015 as described herein. Communication manager 1115 may include a configured permission configuration component 1120, a first configured permission component 1125, and a second configured permission component 1130. Communication manager 1115 may be an example of aspects of communication manager 1310 as described herein.

[0189] The configured permission pair configuration component 1120 can transmit a configured permission pair configuration indicating the allocation of sidelink SPS resources for the sidelink channel to the first UE and the second UE.

[0190] The first configured granting component 1125 can transmit a first configured grant in the configured granting pair to the first UE based on the configured granting pair configuration, the first configured grant indicating activation of sidelink SPS resource allocation for the sidelink channel.

[0191] The second configured granting component 1130 can transmit a second configured grant in the configured granting pair to the second UE based on the configured granting pair configuration, the second configured grant indicating activation of sidelink SPS resource allocation for the sidelink channel.

[0192] Transmitter 1135 can transmit signals generated by other components of device 1105. In some examples, transmitter 1135 may coexist with receiver 1110 in a transceiver module. For example, transmitter 1135 may be a reference... Figure 13 Examples of various aspects of the transceiver 1320 described. The transmitter 1135 may utilize a single antenna or an array of antennas.

[0193] Figure 12 A block diagram 1200 of a communication manager 1205 supporting SPS configuration for sidelink communication according to various 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 configured grant-to-grant configuration component 1210, a first configured grant-to-grant component 1215, a second configured grant-to-grant component 1220, a sidelink transmitter indication component 1225, a sidelink receiver indication component 1230, a sidelink SPS resource activation component 1235, a sidelink SPS resource deactivation component 1240, an SPS resource assignment component 1245, and a retransmission indication component 1250. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0194] The configured permission pair configuration component 1210 can transmit a configured permission pair configuration indicating the allocation of sidelink SPS resources for a sidelink channel to a first UE and a second UE. In some examples, the configured permission pair configuration component 1210 can transmit the configured permission pair configuration to the first UE, the second UE, or both via a downlink control information message, radio resource control signaling, or a combination thereof.

[0195] The first configured granting component 1215 may transmit a first configured grant in the configured granting pair to the first UE based on the configured granting pair configuration, the first configured grant indicating activation of sidelink SPS resource allocation for the sidelink channel. In some examples, the first configured granting component 1215 may transmit a first configured grant including a first cyclic redundancy check scrambled with a first radio network temporary identifier corresponding to the first UE and an indication to a second UE. In some examples, the first configured granting component 1215 may transmit first downlink control information in a coupled downlink control information message including the first configured grant in the configured granting pair to the first UE.

[0196] The second configured granting component 1220 can transmit a second configured grant in the configured granting pair to the second UE based on the configured granting pair configuration. This second configured grant indicates activation of sidelink SPS resource allocation for the sidelink channel. In some examples, the second configured granting component 1220 can transmit a second configured grant including a second cyclic redundancy check scrambled with a second radio network temporary identifier corresponding to the second UE and an indication to the first UE. In some examples, the second configured granting component 1220 can transmit second downlink control information in a coupled downlink control information message including the second configured grant in the configured granting pair to the second UE.

[0197] The sidelink transmitter indication component 1225 can transmit to the first UE a first configured permission indicating that the first UE is a transmitter in communication with the second UE on the sidelink channel. In some examples, the sidelink transmitter indication component 1225 can transmit the first configured permission including bits set to indicate that the UE is a transmitter. In some examples, the sidelink transmitter indication component 1225 can transmit the first configured permission in a downlink control information format indicating that the UE is a transmitter. In some examples, the sidelink transmitter indication component 1225 can transmit the first configured permission including a cyclic redundancy check field scrambled with a radio network temporary identifier indicating that the UE is a transmitter.

[0198] The sidelink receiver indication component 1230 can transmit a second configured permission to the second UE, indicating that the second UE is the receiver of communication with the first UE on the sidelink channel. In some examples, the sidelink receiver indication component 1230 can transmit a second configured permission including bits set to indicate that the UE is the receiver. In some examples, the sidelink receiver indication component 1230 can transmit the second configured permission in a downlink control information format indicating that the second UE is the receiver. In some examples, the sidelink receiver indication component 1230 can transmit a second configured permission including a cyclic redundancy check field scrambled with a radio network temporary identifier indicating that the second UE is the receiver.

[0199] The sidelink SPS resource activation component 1235 can transmit a first configured grant and a second configured grant, each including a new data indicator set to a first value and a resource allocation field set to a second value, to indicate activation of the sidelink SPS resource allocation. In some examples, the sidelink SPS resource activation component 1235 can transmit a first configured grant and a second configured grant, each including a field set to a first value, to indicate activation of the sidelink SPS resource allocation. In some examples, the sidelink SPS resource activation component 1235 can receive an acknowledgment message from a first UE, a second UE, or both, to acknowledge activation of the sidelink resource allocation for the sidelink channel. In some examples, the sidelink SPS resource activation component 1235 can receive a Media Access Control (MAC) control element including an acknowledgment message.

[0200] The sidelink SPS resource deactivation component 1240 can transmit a downlink control information message indicating the deactivation of sidelink SPS resource allocation for the sidelink channel to a first UE, a second UE, or both. In some examples, the sidelink SPS resource deactivation component 1240 can receive an acknowledgment message from the first UE, the second UE, or both based on the transmission of the downlink control information message, to acknowledge the deactivation of the sidelink resource allocation for the sidelink channel. In some examples, the sidelink SPS resource deactivation component 1240 can receive a media access control (MAC) control element including the acknowledgment message.

[0201] SPS resource assignment component 1245 can transmit instructions for resource assignments used for sidelink SPS resource allocation.

[0202] The retransmission indication component 1250 can transmit an indication for retransmission on the sidelink channel based on the sidelink SPS resource allocation, based on a first sidelink radio network temporary identifier for scrambling a first cyclic redundancy check for a first configured grant, a second sidelink radio network temporary identifier for scrambling a second cyclic redundancy check for a second configured grant, a new data indicator in each configured grant of a configured grant pair, a hybrid access request identifier field in each configured grant of a configured grant pair, or a combination thereof.

[0203] Figure 13 A diagram of a system 1300 including device 1305 supporting SPS configuration for sidelink communication according to various 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-station communication manager 1345. These components may be in electronic communication via one or more buses (e.g., bus 1350).

[0204] The communication manager 1310 may transmit a configured permission pair configuration indicating the allocation of sidelink SPS resources for a sidelink channel to a first UE and a second UE. In some cases, the communication manager 1310 may transmit a first configured permission in the configured permission pair to the first UE based on the configured permission pair configuration, the first configured permission indicating activation of the allocation of sidelink SPS resources for the sidelink channel. Additionally, the communication manager 1310 may transmit a second configured permission in the configured permission pair to the second UE based on the configured permission pair configuration, the second configured permission indicating activation of the allocation of sidelink SPS resources for the sidelink channel.

[0205] 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 by client devices (such as one or more UEs 115).

[0206] 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.

[0207] 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.

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

[0209] 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 some 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 SPS configuration for sidelink communication).

[0210] 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.

[0211] 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.

[0212] Figure 14 A flowchart illustrating a method 1400 for supporting SPS configuration for sidelink communication according to various aspects of this disclosure is shown. Operation of method 1400 can be implemented by a UE 115 or its components as described herein. For example, operation of method 1400 can be performed by, as described in reference... Figures 6 to 9 The described communication manager 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 following functions. Alternatively or alternatively, the UE can use dedicated hardware to perform aspects of the following functions.

[0213] At 1405, the UE may receive from the base station a configured permission pair indicating the allocation of sidelink SPS resources for the sidelink channel. The operation of 1405 may be performed according to the methods described herein. In some examples, aspects of the operation of 1405 may be provided as referenced... Figures 6 to 9 The described configured permission configuration component is used to execute.

[0214] At 1410, the UE can receive a first configured permission from the base station based on the configured permission pair configuration, the first configured permission indicating activation of sidelink SPS resource allocation for the sidelink channel. The operation of 1410 can be performed according to the method described herein. In some examples, aspects of the operation of 1410 can be derived from, as referenced... Figures 6 to 9 The configured permission component described is used to execute.

[0215] At point 1415, the UE can communicate with the second UE on the sidelink channel based on the first configured permission and the sidelink SPS resource allocation. The operation of point 1415 can be performed according to the method described herein. In some examples, aspects of the operation of point 1415 can be described as follows: Figures 6 to 9 The described SPS sidelink communication component is used to perform this.

[0216] Figure 15 A flowchart illustrating a method 1500 for supporting SPS configuration for sidelink communication according to various aspects of this disclosure is shown. Operation of method 1500 can be implemented by a UE 115 or its components as described herein. For example, operation of method 1500 can be performed by, as described in reference... Figures 6 to 9 The described communication manager 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 following functions. Alternatively or alternatively, the UE can use dedicated hardware to perform aspects of the following functions.

[0217] At point 1505, the UE may receive from the base station a configured permission pair indicating the allocation of sidelink SPS resources for the sidelink channel. Operation of point 1505 may be performed according to the methods described herein. In some examples, aspects of operation of point 1505 may be determined by reference to... Figures 6 to 9 The described configured permission configuration component is used to execute.

[0218] At 1510, the UE can receive a first configured permission from the base station based on the configured permission pair configuration, the first configured permission indicating activation of sidelink SPS resource allocation for the sidelink channel. The operation of 1510 can be performed according to the method described herein. In some examples, aspects of the operation of 1510 can be derived from, as referenced... Figures 6 to 9 The configured permission component described is used to execute.

[0219] At point 1515, the UE may receive a first configured permission indicating that the UE is the transmitter of communication with the second UE on the sidelink channel. The operation of point 1515 may be performed according to the method described herein. In some examples, aspects of the operation of point 1515 may be determined by reference to... Figures 6 to 9 The described sidelink transport component is used to perform this.

[0220] At point 1520, the UE can communicate with the second UE on the sidelink channel based on the first configured permission, according to the sidelink SPS resource allocation. The operation of point 1520 can be performed according to the method described herein. In some examples, aspects of the operation of point 1520 can be described as follows: Figures 6 to 9 The described SPS sidelink communication component is used to perform this.

[0221] Figure 16 A flowchart illustrating a method 1600 for supporting SPS configuration for sidelink communication according to various aspects of this disclosure is shown. Operation of method 1600 can be implemented by a UE 115 or its components as described herein. For example, operation of method 1600 can be performed by, as described in reference... Figures 6 to 9 The described communication manager 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 following functions. Alternatively or alternatively, the UE can use dedicated hardware to perform aspects of the following functions.

[0222] At point 1605, the UE may receive from the base station a configured permission pair indicating the allocation of sidelink SPS resources for the sidelink channel. Operation of point 1605 may be performed according to the methods described herein. In some examples, aspects of operation of point 1605 may be determined by reference to... Figures 6 to 9 The described configured permission configuration component is used to execute.

[0223] At 1610, the UE can receive a first configured permission from the base station based on the configured permission pair configuration, the first configured permission indicating activation of sidelink SPS resource allocation for the sidelink channel. The operation of 1610 can be performed according to the method described herein. In some examples, aspects of the operation of 1610 can be derived from, as referenced... Figures 6 to 9 The configured permission component described is used to execute.

[0224] At point 1615, the UE may receive a first configured permission indicating that the UE is the receiver of communication with the second UE on the sidelink channel. The operation of point 1615 may be performed according to the method described herein. In some examples, aspects of the operation of point 1615 may be determined by reference to... Figures 6 to 9 The described sidelink receiver component is used to perform this.

[0225] At 1620, the UE can communicate with the second UE on the sidelink channel based on the first configured permission, according to the sidelink SPS resource allocation. The operation of 1620 can be performed according to the method described herein. In some examples, aspects of the operation of 1620 can be described as follows: Figures 6 to 9 The described SPS sidelink communication component is used to perform this.

[0226] Figure 17 A flowchart illustrating a method 1700 for supporting SPS configuration for sidelink communication according to various aspects of this disclosure is shown. Operation of method 1700 can be implemented by a UE 115 or its components as described herein. For example, operation of method 1700 can be implemented by, as referred to... Figures 6 to 9 The described communication manager 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 following functions. Alternatively or alternatively, the UE can use dedicated hardware to perform aspects of the following functions.

[0227] At 1705, the UE may receive from the base station a configured permission pair indicating the allocation of sidelink SPS resources for the sidelink channel. Operation of 1705 may be performed according to the methods described herein. In some examples, aspects of the operation of 1705 may be determined by reference to... Figures 6 to 9 The described configured permission configuration component is used to execute.

[0228] At 1710, the UE can receive a first configured permission from the base station based on the configured permission pair configuration, the first configured permission indicating activation of sidelink SPS resource allocation for the sidelink channel. Operation of 1710 can be performed according to the method described herein. In some examples, aspects of operation of 1710 can be derived from, as referenced... Figures 6 to 9 The configured permission component described is used to execute.

[0229] At 1715, the UE can communicate with the second UE on the sidelink channel based on the first configured permission, according to the sidelink SPS resource allocation. The operation of 1715 can be performed according to the method described herein. In some examples, aspects of the operation of 1715 can be described as follows: Figures 6 to 9 The described SPS sidelink communication component is used to perform this.

[0230] At 1720, the UE may receive a first configured grant including cyclic redundancy check scrambled with a radio network temporary indicator corresponding to the UE and an indication of a second UE for communication on the sidelink channel. Operation of 1720 may be performed according to the method described herein. In some examples, aspects of operation of 1720 may be provided as referenced... Figures 6 to 9 The configured permission component described is used to execute.

[0231] Figure 18A flowchart illustrating a method 1800 for supporting SPS configuration for sidelink communication according to various aspects of this disclosure is shown. Operation of method 1800 can be implemented by a base station 105 or its components as described herein. For example, operation of method 1800 can be implemented by referring to... Figures 10 to 13 The described communication manager is used to perform 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 following functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the following functions.

[0232] At point 1805, the base station may transmit a configured grant-to-configuration pair indicating the allocation of sidelink SPS resources for the sidelink channel to both the first and second UEs. The operation of point 1805 may be performed according to the method described herein. In some examples, aspects of the operation of point 1805 may be determined by reference to... Figures 10 to 13 The described configured permission is executed on the configured component.

[0233] At 1810, the base station can transmit a first configured permission in the configured permission pair to the first UE based on the configured permission pair configuration, the first configured permission indicating activation of sidelink SPS resource allocation for the sidelink channel. The operation of 1810 can be performed according to the method described herein. In some examples, aspects of the operation of 1810 can be derived from, as referenced... Figures 10 to 13 The first configured permission component described is used to execute.

[0234] At point 1815, the base station can transmit a second configured permission in the configured permission pair to the second UE based on the configured permission pair configuration. This second configured permission indicates activation of sidelink SPS resource allocation for the sidelink channel. The operation of point 1815 can be performed according to the method described herein. In some examples, aspects of the operation of point 1815 can be derived from, as referenced... Figures 10 to 13 The second configured permission component described herein shall be executed.

[0235] Figure 19 A flowchart illustrating a method 1900 for supporting SPS configuration for sidelink communication according to various aspects of this disclosure is shown. Operation of method 1900 can be implemented by a base station 105 or its components as described herein. For example, operation of method 1900 can be implemented by referring to... Figures 10 to 13 The described communication manager is used to perform 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 following functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the following functions.

[0236] At point 1905, the base station may transmit a configured grant pair configuration indicating the allocation of sidelink SPS resources for the sidelink channel to both the first UE and the second UE. The operation of point 1905 may be performed according to the method described herein. In some examples, aspects of the operation of point 1905 may be determined by reference to... Figures 10 to 13 The described configured permission is executed on the configured component.

[0237] At 1910, the base station can transmit a first configured permission in the configured permission pair to the first UE based on the configured permission pair configuration, the first configured permission indicating activation of sidelink SPS resource allocation for the sidelink channel. The operation of 1910 can be performed according to the method described herein. In some examples, aspects of the operation of 1910 can be derived from, as referenced... Figures 10 to 13 The first configured permission component described is used to execute.

[0238] At point 1915, the base station can transmit a second configured permission in the configured permission pair to the second UE based on the configured permission pair configuration. This second configured permission indicates activation of sidelink SPS resource allocation for the sidelink channel. The operation at point 1915 can be performed according to the method described herein. In some examples, aspects of the operation at point 1915 can be derived from, as referenced... Figures 10 to 13 The second configured permission component described herein shall be executed.

[0239] At point 1920, the base station may transmit a first configured grant and a second configured grant, each including a new data indicator set to a first value and a resource allocation field set to a second value, indicating activation of SPS resource allocation for the sidelink. Operation at point 1920 may be performed according to the method described herein. In some examples, aspects of operation at point 1920 may be determined by reference to... Figures 10 to 13 The described sidelink SPS resource activation component is used to perform this.

[0240] Figure 20 A flowchart illustrating a method 2000 for supporting SPS configuration for sidelink communication according to various aspects of this disclosure is shown. Operation of method 2000 can be implemented by a base station 105 or its components as described herein. For example, operation of method 2000 can be implemented by referring to... Figures 10 to 13 The described communication manager is used to perform 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 following functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the following functions.

[0241] At point 2005, the base station may transmit a configured grant-to-configuration pair indicating the allocation of sidelink SPS resources for the sidelink channel to both the first UE and the second UE. Operation of point 2005 may be performed according to the method described herein. In some examples, aspects of operation of point 2005 may be determined by reference to... Figures 10 to 13 The described configured permission is executed on the configured component.

[0242] At 2010, the base station can transmit a first configured permission in a configured permission pair to a first UE based on the configured permission pair configuration, the first configured permission indicating activation of sidelink SPS resource allocation for the sidelink channel. Operation of 2010 can be performed according to the method described herein. In some examples, aspects of operation of 2010 can be derived from, as referenced... Figures 10 to 13 The first configured permission component described is used to execute.

[0243] At 2015, the base station can transmit a second configured permission in the configured permission pair to the second UE based on the configured permission pair configuration. This second configured permission indicates activation of sidelink SPS resource allocation for the sidelink channel. Operation 2015 can be performed according to the method described herein. In some examples, aspects of operation 2015 can be derived from, as referenced... Figures 10 to 13 The second configured permission component described herein shall be executed.

[0244] At 2020, the base station can transmit a first configured permission and a second configured permission, each including a field set to a first value, indicating activation of sidelink SPS resource allocation. Operation of 2020 can be performed according to the method described herein. In some examples, aspects of operation of 2020 can be determined by referring to... Figures 10 to 13 The described sidelink SPS resource activation component is used to perform this.

[0245] Figure 21 A flowchart illustrating a method 2100 for supporting SPS configuration for sidelink communication according to various aspects of this disclosure is shown. Operation of method 2100 may be implemented by a base station 105 or its components as described herein. For example, operation of method 2100 may be implemented by, as referred to... Figures 10 to 13 The described communication manager is used to perform 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 following functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the following functions.

[0246] At 2105, the base station may transmit a configured grant-to-configuration pair indicating the allocation of sidelink SPS resources for the sidelink channel to the first UE and the second UE. The operation of 2105 may be performed according to the method described herein. In some examples, aspects of the operation of 2105 may be provided by reference to... Figures 10 to 13 The described configured permission is executed on the configured component.

[0247] At 2110, the base station may transmit a first configured permission in a configured permission pair to the first UE based on the configured permission pair configuration, the first configured permission indicating activation of sidelink SPS resource allocation for the sidelink channel. The operation of 2110 may be performed according to the method described herein. In some examples, aspects of the operation of 2110 may be provided as referenced... Figures 10 to 13 The first configured permission component described is used to execute.

[0248] At 2115, the base station can transmit a second configured permission in the configured permission pair to the second UE based on the configured permission pair configuration, the second configured permission indicating activation of sidelink SPS resource allocation for the sidelink channel. The operation of 2115 can be performed according to the method described herein. In some examples, aspects of the operation of 2115 can be derived from, as referenced... Figures 10 to 13 The second configured permission component described herein shall be executed.

[0249] At 2120, the base station may transmit a downlink control information message to the first UE, the second UE, or both, indicating the discontinuation of sidelink SPS resource allocation for the sidelink channel. The operation of 2120 may be performed according to the method described herein. In some examples, aspects of the operation of 2120 may be as described in reference... Figures 10 to 13 The described sidelink SPS resource deactivation component is used to perform this.

[0250] 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.

[0251] The following provides an overview of the various aspects of this disclosure:

[0252] Aspect 1: A method for wireless communication at a UE, comprising: receiving from a base station a configured permission pair configuration indicating a sidelink semi-persistent scheduling resource allocation for a sidelink channel; receiving from the base station, at least in part based on the configured permission pair configuration, a first configured permission in the configured permission pair indicating activation of the sidelink semi-persistent scheduling resource allocation for the sidelink channel; and communicating with a second UE on the sidelink channel according to the sidelink semi-persistent scheduling resource allocation, based at least in part on the first configured permission.

[0253] Aspect 2: The method of aspect 1, wherein receiving the first configured permission includes: receiving a first configured permission indicating that the UE is the transmitter of communication with the second UE on the side link channel.

[0254] Aspect 3: The method of aspect 2, wherein communicating with the second UE on the sidelink channel includes: transmitting a sidelink message to the second UE via a sidelink semi-persistent scheduling resource allocation based at least in part on a first configured permission indicating that the UE is the transmitter.

[0255] Aspect 4: The method of any one of Aspects 2 to 3, wherein receiving the first configured permission includes: receiving a first configured permission including a bit set to indicate that the UE is a transmitter.

[0256] Aspect 5: The method of any one of Aspects 2 to 4, wherein receiving the first configured permission includes: receiving the first configured permission in a downlink control information format indicating that the UE is a transmitter.

[0257] Aspect 6: The method of any one of Aspects 2 to 5, wherein receiving the first configured permission includes: receiving a first configured permission including a cyclic redundancy check field scrambled with a radio network temporary identifier indicating that the UE is a transmitter.

[0258] Aspect 7: The method of any one of Aspects 1 to 6, wherein receiving the first configured permission includes: receiving a first configured permission indicating that the UE is the receiver of communication with the second UE on the side link channel.

[0259] Aspect 8: The method of aspect 7, wherein communicating with the second UE on the sidelink channel includes: receiving sidelink messages from the second UE via a sidelink semi-persistent scheduling resource allocation based at least in part on a first configured permission indicating that the UE is the receiver.

[0260] Aspect 9: The method of any one of Aspects 7 to 8, wherein receiving the first configured permission includes: receiving a first configured permission including bits set to indicate that the UE is a receiver.

[0261] Aspect 10: The method of any one of Aspects 7 to 9, wherein receiving the first configured permission includes: receiving the first configured permission in a downlink control information format indicating that the UE is a receiver.

[0262] Aspect 11: The method of any one of Aspects 7 to 10, wherein receiving the first configured permission includes: receiving a first configured permission including a cyclic redundancy check field scrambled with a radio network temporary identifier indicating that the UE is a receiver.

[0263] Aspect 12: The method of any one of Aspects 1 to 11, wherein receiving the first configured permission includes: receiving the first configured permission, which includes a new data indicator set to a first value and a resource assignment field set to a second value, indicating the activation of a semi-persistent scheduling resource allocation for the counterpart link.

[0264] Aspect 13: The method of any one of Aspects 1 to 12, wherein receiving the first configured permission includes: receiving the first configured permission, which includes a field set to a first value, to indicate the activation of the semi-persistent scheduling resource allocation of the counterpart link.

[0265] Aspect 14: The method of any one of Aspects 1 to 13 further includes: receiving from the base station a downlink control information message indicating that the allocation of sidelink semi-persistent scheduling resources for the sidelink channel should be disabled.

[0266] Aspect 15: The method of aspect 14 further includes: transmitting an acknowledgment message to the base station at least in part based on the receipt of a downlink control information message to acknowledge the deactivation of the sidelink semi-persistent scheduling resource allocation for the sidelink channel.

[0267] Aspect 16: The method of aspect 15, wherein transmitting the acknowledgment message includes: transmitting a Media Access Control (MAC) control element including the acknowledgment message.

[0268] Aspect 17: The method of any one of Aspects 1 to 16, wherein receiving the first configured permission includes: receiving a first configured permission including a cyclic redundancy check scrambled with a radio network temporary indicator corresponding to the UE and an indication of a second UE for communication on a sidelink channel.

[0269] Aspect 18: The method of any one of Aspects 1 to 17, wherein receiving the first configured grant comprises: receiving an indication to retransmit communication on the sidelink channel in accordance with the sidelink semi-persistent scheduling resource allocation, based at least in part on a sidelink radio network temporary identifier, a new data indicator, a hybrid access request identifier field in the first configured grant, or a combination thereof, scrambled by a UE-specific sidelink radio network temporary identifier for scrambling the cyclic redundancy check of the first configured grant.

[0270] Aspect 19: The method of any one of Aspects 1 to 18, wherein receiving the configured permission pair configuration includes: receiving the configured permission pair configuration from the base station via a downlink control information message, radio resource control signaling, or a combination thereof.

[0271] Aspect 20: The method of any one of Aspects 1 to 19, wherein receiving the first configured permission in a configured permission pair comprises: receiving from a base station a downlink control information message including the first configured permission in the configured permission pair.

[0272] Aspect 21: The method of any one of Aspects 1 to 20 further includes: transmitting an acknowledgment message to the base station at least in part based on receiving a first configured permission to confirm activation of the allocation of sidelink semi-persistent scheduling resources for the sidelink channel.

[0273] Aspect 22: The method of aspect 21, wherein transmitting the acknowledgment message includes: transmitting a Media Access Control (MAC) control element including the acknowledgment message.

[0274] Aspect 23: A method for conducting wireless communication at a base station, comprising: transmitting to a first UE and a second UE a configured permission pair configuration indicating the allocation of sidelink semi-persistent scheduling resources for a sidelink channel; transmitting to the first UE, at least in part based on the configured permission pair configuration, a first configured permission in the configured permission pair indicating activation of the allocation of sidelink semi-persistent scheduling resources for the sidelink channel; and transmitting to the second UE, at least in part based on the configured permission pair configuration, a second configured permission in the configured permission pair indicating activation of the allocation of sidelink semi-persistent scheduling resources for the sidelink channel.

[0275] Aspect 24: The method of aspect 23, wherein transmitting the first configured permission includes: transmitting to the first UE a first configured permission indicating that the first UE is the transmitter communicating with the second UE on the side link channel.

[0276] Aspect 25: The method of aspect 24, wherein transmitting the first configured permission includes transmitting a first configured permission including bits indicating that the UE is a transmitter.

[0277] Aspect 26: The method of any one of Aspects 24 to 25, wherein transmitting the first configured permission includes transmitting the first configured permission in a downlink control information format indicating that the UE is a transmitter.

[0278] Aspect 27: The method of any one of Aspects 24 to 26, wherein transmitting the first configured permission includes: transmitting the first configured permission including a cyclic redundancy check field scrambled with a radio network temporary identifier indicating that the UE is a transmitter.

[0279] Aspect 28: The method of any one of Aspects 23 to 27, wherein transmitting the second configured permission includes: transmitting to the second UE a second configured permission indicating that the second UE is the receiver of communication with the first UE on the side link channel.

[0280] Aspect 29: The method of aspect 28, wherein transmitting the second configured permission includes transmitting a second configured permission including bits set to indicate that the second UE is a receiver.

[0281] Aspect 30: The method of any one of Aspects 28 to 29, wherein transmitting the second configured permission includes transmitting the second configured permission in a downlink control information format indicating that the second UE is a receiver.

[0282] Aspect 31: The method of any one of Aspects 28 to 30, wherein transmitting the second configured permission includes: transmitting a second configured permission including a cyclic redundancy check field scrambled with a radio network temporary identifier indicating that the second UE is a receiver.

[0283] Aspect 32: The method of any one of Aspects 23 to 31, wherein transmitting each configured permission in the configured permission pair comprises: transmitting a first configured permission and a second configured permission, each including a new data indicator set to a first value and a resource assignment field set to a second value, to indicate activation of a semi-persistent resource allocation on the opposite link.

[0284] Aspect 33: The method of any one of Aspects 23 to 32, wherein transmitting each configured permission in the configured permission pair comprises: transmitting a first configured permission and a second configured permission, each including a field set to a first value, to indicate activation of the counterpart link semi-persistent scheduling resource allocation.

[0285] Aspect 34: The method of any one of Aspects 23 to 33 further includes: transmitting to the first UE, the second UE, or both a downlink control information message indicating that the allocation of sidelink semi-persistent scheduling resources for the sidelink channel should be disabled.

[0286] Aspect 35: The method of aspect 34 further includes: receiving an acknowledgment message from a first UE, a second UE, or both, at least in part based on transmitting downlink control information messages, to acknowledge the deactivation of sidelink semi-persistent scheduling resource allocation for the sidelink channel.

[0287] Aspect 36: The method of aspect 35, wherein receiving the acknowledgment message includes: receiving a media access control (MAC) control element including the acknowledgment message.

[0288] Aspect 37: The method of any one of Aspects 23 to 36 further includes: transmitting an indication of resource assignment for sidelink semi-persistent scheduling resource allocation.

[0289] Aspect 38: The method of any one of Aspects 23 to 37, wherein transmitting each configured permission in the configured permission pair comprises: transmitting a first configured permission including a first cyclic redundancy check and an indication of a second UE scrambled with a first radio network temporary identifier corresponding to the first UE; and transmitting a second configured permission including a second cyclic redundancy check and an indication of a first UE scrambled with a second radio network temporary identifier corresponding to the second UE.

[0290] Aspect 39: The method of any one of Aspects 23 to 38 further includes: transmitting an indication for retransmission on a sidelink channel based at least in part on a first sidelink radio network temporary identifier for scrambling a first cyclic redundancy check for a first configured grant, a second sidelink radio network temporary identifier for scrambling a second cyclic redundancy check for a second configured grant, a new data indicator in each configured grant of a configured grant pair, a hybrid access request identifier field in each configured grant of a configured grant pair, or a combination thereof.

[0291] Aspect 40: The method of any one of Aspects 23 to 39, wherein transmitting the configured permission pair configuration includes transmitting the configured permission pair configuration to a first UE, a second UE, or both via a downlink control information message, radio resource control signaling, or a combination thereof.

[0292] Aspect 41: The method of any one of Aspects 23 to 40, wherein transmitting each configured permission in a configured permission pair comprises: transmitting to a first UE a first downlink control information message in a coupled downlink control information message including the first configured permission in the configured permission pair; and transmitting to a second UE a second downlink control information message in a coupled downlink control information message including the second configured permission in the configured permission pair.

[0293] Aspect 42: The method of any one of Aspects 23 to 41 further includes: receiving an acknowledgment message from a first UE, a second UE, or both to acknowledge activation of the sidelink semi-persistent scheduling resource allocation for the sidelink channel.

[0294] Aspect 43: The method of aspect 42, wherein receiving the acknowledgment message includes: receiving a media access control (MAC) control element including the acknowledgment message.

[0295] Aspect 44: An apparatus for wireless communication at a UE, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of any one of aspects 1 to 22.

[0296] Aspect 45: An apparatus for wireless communication at a UE, comprising at least one means for performing the method of any one of aspects 1 to 22.

[0297] Aspect 46: A non-transient computer-readable medium storing code for wireless communication at a UE, the code including instructions executable by a processor to perform methods as described in any of Aspects 1 to 22.

[0298] Aspect 47: An apparatus for wireless communication at a base station, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of any one of aspects 23 to 43.

[0299] Aspect 48: An apparatus for wireless communication at a base station, comprising at least one means for performing the method of any one of aspects 23 to 43.

[0300] Aspect 49: 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 of Aspects 23 to 43.

[0301] 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.

[0302] 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.

[0303] 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).

[0304] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can 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 can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Features implementing the functions can also be physically located in various locations, including being distributed such that different parts of the function are implemented at different physical locations.

[0305] 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 random access memory (RAM), read-only memory (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 such 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.

[0306] 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 way as the phrase "at least partially based on."

[0307] 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.

[0308] 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.

[0309] 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. A method for conducting wireless communication at a first user equipment (UE), comprising: Receive a configured permission pair configuration from the network entity, wherein the configured permission pair configuration instruction is: Sidelink semi-persistent scheduling resource allocation for the sidelink channel used to communicate with the second UE, and A first configured permission for the first UE and a second configured permission for the second UE, wherein the first configured permission and the second configured permission in the configured permission pair each indicate: Activation of the sidelink semi-persistent scheduling resource allocation, which is used for communication between the first UE and the second UE via the sidelink channel. Which of the first UE or the second UE is the transmitter of communication between the first UE and the second UE on the side link channel, and Which of the first UE or the second UE is the receiver of communication between the first UE and the second UE on the side link channel; The first configured permission in the configured permission pair is received from the network entity at least in part based on the configured permission pair configuration; as well as The second UE communicates on the sidelink channel based at least in part on the first configured permission, according to the allocation of the sidelink semi-persistent scheduling resources.

2. The method of claim 1, wherein the first configured permission indicates that the first UE is the transmitter of communication with the second UE on the side link channel.

3. The method of claim 1, wherein communicating with the second UE on the side link channel comprises: The sidelink message is transmitted to the second UE via the sidelink semi-persistent scheduling resource allocation, at least in part based on the first configured permission indicating that the first UE is the transmitter.

4. The method of claim 1, wherein the first configured permission includes a bit configured to indicate that the first UE is the transmitter.

5. The method of claim 1, wherein receiving the first configured permission comprises: The first configured permission is received in a downlink control information format indicating that the first UE is the transmitting party.

6. The method of claim 1, wherein the first configured grant includes a cyclic redundancy check field scrambled with a radio network temporary identifier indicating that the first UE is the transmitting party.

7. The method of claim 1, wherein the first configured permission indicates that the first UE is the receiver of communication with the second UE on the side link channel.

8. The method of claim 1, wherein communicating with the second UE on the side link channel comprises: The sidelink message is received from the second UE via the sidelink semi-persistent scheduling resource allocation, at least in part based on the first configured permission indicating that the first UE is the receiver.

9. The method of claim 1, wherein the first configured grant includes a bit configured to indicate that the first UE is the receiver.

10. The method of claim 1, wherein receiving the first configured permission comprises: The first configured permission is received in a downlink control information format that indicates the first UE is the receiver.

11. The method of claim 1, wherein the first configured grant includes a cyclic redundancy check field scrambled with a radio network temporary identifier indicating that the first UE is the receiver.

12. The method of claim 1, wherein the first configured grant includes a new data indicator set to a first value and a resource assignment field set to a second value to indicate activation of the sidelink semi-persistent scheduling resource allocation.

13. The method of claim 1, wherein the first configured grant includes a field set to a first value to indicate activation of the sidelink semi-persistent scheduling resource allocation.

14. The method of claim 1, further comprising: Receive from the network entity a downlink control information message indicating that the allocation of the sidelink semi-persistent scheduling resources for the sidelink channel should be disabled.

15. The method of claim 14, further comprising: The acknowledgment message is sent to the network entity at least in part based on the receipt of the downlink control information message to confirm the deactivation of the sidelink semi-persistent scheduling resource allocation for the sidelink channel.

16. The method of claim 15, wherein transmitting the confirmation message comprises: Transmit the Media Access Control (MAC) element including the confirmation message.

17. The method of claim 1, wherein the first configured grant includes cyclic redundancy check scrambled with a radio network temporary indicator corresponding to the first UE and an indication of the second UE for communication on the sidelink channel.

18. The method of claim 1, wherein receiving the first configured permission comprises: The system receives, at least in part, an indication for retransmission of communication on the sidelink channel in accordance with the sidelink semi-persistent scheduling resource allocation, based on a sidelink radio network temporary identifier, a new data indicator, a hybrid access request identifier field in the first configured grant, or a combination thereof, specific to the first UE for scrambling the first configured granted cyclic redundancy check.

19. The method of claim 1, wherein receiving the configured permission configuration comprises: The configured permission is received from the network entity via downlink control information messages, radio resource control signaling, or a combination thereof.

20. The method of claim 1, wherein receiving the first configured permission comprises: Receive from the network entity a downlink control information message including the first configured and authorized downlink control information message.

21. The method of claim 1, further comprising: At least in part, an acknowledgment message is sent to the network entity based on receiving the first configured permission to confirm activation of the sidelink semi-persistent scheduling resource allocation for the sidelink channel.

22. The method of claim 21, wherein transmitting the confirmation message comprises: Transmit the Media Access Control (MAC) element including the confirmation message.

23. An apparatus for performing wireless communication at a first user equipment (UE), comprising: One or more processors; Memory coupled to the one or more processors; as well as Instructions stored in the memory, which can be executed by the one or more processors to cause the device to: Receive a configured permission pair configuration from the network entity, wherein the configured permission pair configuration instruction is: Sidelink semi-persistent scheduling resource allocation for the sidelink channel used to communicate with the second UE, and A first configured permission for the first UE and a second configured permission for the second UE, wherein the configured permission indicates, respectively, the first configured permission and the second configured permission: Activation of the sidelink semi-persistent scheduling resource allocation, which is used for communication between the first UE and the second UE via the sidelink channel. Which of the first UE or the second UE is the transmitter for communication between the first UE and the second UE on the side link channel, and Which of the first UE or the second UE is the receiver for communication between the first UE and the second UE on the side link channel; The first configured permission in the configured permission pair is received from the network entity at least in part based on the configured permission pair configuration; as well as The second UE communicates on the sidelink channel based at least in part on the first configured permission, according to the allocation of the sidelink semi-persistent scheduling resources.

24. The apparatus of claim 23, wherein the first configured permission indicates that the first UE is the transmitter of communication with the second UE on the side link channel.

25. The apparatus of claim 23, wherein instructions for communicating with the second UE on the side link channel are executable by the one or more processors to cause the apparatus to: The sidelink message is transmitted to the second UE via the sidelink semi-persistent scheduling resource allocation, at least in part based on the first configured permission indicating that the first UE is the transmitter.

26. The apparatus of claim 23, wherein the first configured grant includes a bit configured to indicate that the first UE is the transmitter.

27. The apparatus of claim 23, wherein the instruction for receiving the first configured grant can be executed by the one or more processors to cause the apparatus to: The first configured permission is received in a downlink control information format indicating that the first UE is the transmitting party.

28. The apparatus of claim 23, wherein the first configured grant includes a cyclic redundancy check field scrambled with a radio network temporary identifier indicating that the first UE is the transmitting party.

29. The apparatus of claim 23, wherein the first configured permission indicates that the first UE is the receiver of communication with the second UE on the side link channel.

30. The apparatus of claim 23, wherein instructions for communicating with the second UE on the side link channel are executable by the one or more processors to cause the apparatus to: The sidelink message is received from the second UE via the sidelink semi-persistent scheduling resource allocation, at least in part based on the first configured permission indicating that the first UE is the receiver.

31. The apparatus of claim 23, wherein the first configured grant includes a bit configured to indicate that the first UE is the receiver.

32. The apparatus of claim 23, wherein the instruction for receiving the first configured grant can be executed by the one or more processors to cause the apparatus to: The first configured permission is received in a downlink control information format that indicates the first UE is the receiver.

33. The apparatus of claim 23, wherein the first configured grant includes a cyclic redundancy check field scrambled with a radio network temporary identifier indicating that the first UE is the receiver.

34. The apparatus of claim 23, wherein the first configured grant includes a new data indicator set to a first value and a resource assignment field set to a second value to indicate activation of the sidelink semi-persistent scheduling resource allocation.

35. The apparatus of claim 23, wherein the first configured grant includes a field set to a first value to indicate activation of the sidelink semi-persistent scheduling resource allocation.

36. The apparatus of claim 23, wherein the instructions are executable by the one or more processors to cause the apparatus to: Receive from the network entity a downlink control information message indicating that the allocation of the sidelink semi-persistent scheduling resources for the sidelink channel should be disabled.

37. The apparatus of claim 36, wherein the instructions are executable by the one or more processors to cause the apparatus to... The acknowledgment message is sent to the network entity at least in part based on the receipt of the downlink control information message to confirm the deactivation of the sidelink semi-persistent scheduling resource allocation for the sidelink channel.

38. The apparatus of claim 37, wherein the instructions for transmitting the confirmation message are executable by the one or more processors to cause the apparatus to: Transmit the Media Access Control (MAC) element including the confirmation message.

39. The apparatus of claim 23, wherein the first configured grant includes a cyclic redundancy check scrambled with a radio network temporary indicator corresponding to the first UE and an indication of the second UE for communication on the sidelink channel.

40. The apparatus of claim 23, wherein the instruction for receiving the first configured grant can be executed by the one or more processors to cause the apparatus to: The system receives, at least in part, an indication for retransmission of communication on the sidelink channel in accordance with the sidelink semi-persistent scheduling resource allocation, based on a sidelink radio network temporary identifier, a new data indicator, a hybrid access request identifier field in the first configured grant, or a combination thereof, specific to the first UE for scrambling the first configured granted cyclic redundancy check.

41. The apparatus of claim 23, wherein the configured instructions for granting configuration can be executed by the one or more processors to cause the apparatus to: The configured permission is received from the network entity via downlink control information messages, radio resource control signaling, or a combination thereof.

42. The apparatus of claim 23, wherein the instruction for receiving the first configured grant can be executed by the one or more processors to cause the apparatus to: Receive from the network entity a downlink control information message including the first configured and authorized downlink control information message.

43. The apparatus of claim 23, wherein the instructions are executable by the one or more processors to cause the apparatus to: At least in part, an acknowledgment message is sent to the network entity based on receiving the first configured permission to confirm activation of the sidelink semi-persistent scheduling resource allocation for the sidelink channel.

44. The apparatus of claim 43, wherein the instructions for transmitting the confirmation message are executable by the one or more processors to cause the apparatus to: Transmit the Media Access Control (MAC) element including the confirmation message.

45. An apparatus for performing wireless communication at a first user equipment (UE), comprising: A means for receiving a configured permission pair configuration instruction from a network entity: Sidelink semi-persistent scheduling resource allocation for the sidelink channel used to communicate with the second UE, and A first configured permission for the first UE and a second configured permission for the second UE, wherein the configured permission indicates, respectively, the first configured permission and the second configured permission: Activation of the sidelink semi-persistent scheduling resource allocation, which is used for communication between the first UE and the second UE via the sidelink channel. Which of the first UE or the second UE is the transmitter for communication between the first UE and the second UE on the side link channel, and Which of the first UE or the second UE is the receiver for communication between the first UE and the second UE on the side link channel; A means for receiving, at least in part, the first configured permission in the configured permission pair from the network entity based on the configured permission pair configuration; as well as A means for communicating with the second UE on the sidelink channel based at least in part on the first configured permission, according to the allocation of the sidelink semi-persistent scheduling resources.

46. ​​A non-transient computer-readable medium storing code for wireless communication at a first user equipment (UE), the code including instructions executable by one or more processors for the following operations: Receive a configured permission pair configuration from the network entity, wherein the configured permission pair configuration instruction is: Sidelink semi-persistent scheduling resource allocation for the sidelink channel used to communicate with the second UE, and A first configured permission for the first UE and a second configured permission for the second UE, wherein the configured permission indicates, respectively, the first configured permission and the second configured permission: Activation of the sidelink semi-persistent scheduling resource allocation, which is used for communication between the first UE and the second UE via the sidelink channel. Which of the first UE or the second UE is the transmitter for communication between the first UE and the second UE on the side link channel, and Which of the first UE or the second UE is the receiver for communication between the first UE and the second UE on the side link channel; The first configured permission in the configured permission pair is received from the network entity at least in part based on the configured permission pair configuration; as well as The second UE communicates on the sidelink channel based at least in part on the first configured permission, according to the allocation of the sidelink semi-persistent scheduling resources.

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