Resource allocation for bidirectional sidelink wake-up and paging

Abstract

Methods, systems, and apparatus for wireless communication are described. A user equipment (UE) can identify an indication of a wake-up signal (WUS) configuration for a first UE, the WUS configuration indicating the timing of WUS monitoring for sidelink wake-up signaling between the first UE and a second UE. The UE can determine, based on the WUS configuration, a first resource set for the first UE to transmit WUS during the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing. The UE can use the first resource set to transmit WUS to the second UE during the WUS monitoring timing based on the identification of a service for the second UE at the first UE.

Description

[0001] Cross-references to related applications

[0002] This patent application claims priority to U.S. Patent Application No. 17 / 214,651, filed March 26, 2021, entitled “RESOURCE ALLOCATIONFOR BI-DIRECTIONAL SIDELINK WAKEUP AND PAGING”, each of which is assigned to the assignee of this application and is expressly incorporated herein by reference. Technical Field

[0003] The following pertains to wireless communication, including resource allocation for bidirectional sidelink wake-up and paging. Background Technology

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, message sending and receiving, and broadcasting. 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), LTE-A Advanced (LTE-A), or LTE-A Pro systems, and fifth-generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems can employ technologies such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal FDMA (OFDMA), or Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each of which simultaneously supports communication for multiple communication devices (which may also be referred to as User Equipment (UE)).

[0005] In some wireless communication systems, a UE can use sidelink communication to communicate directly with another UE via a sidelink, and this other UE can be outside the base station's service area. As part of the sidelink communication, the UE can determine the resources to use when transmitting a wake-up signal to the other UE. Conventional methods for wake-up signaling in sidelink communication and related resource allocation may be flawed. Summary of the Invention

[0006] The described technology relates to improved methods, systems, devices, and apparatuses for supporting resource allocation for bidirectional sidelink wake-up and paging. Generally, the described technology provides a method for resource allocation for wake-up signaling in sidelink communications. A user equipment (UE) can identify an indication of a wake-up signal (WUS) configuration for a first UE, which indicates a WUS monitoring timing (e.g., a WUS monitoring timing or a paging monitoring timing) for sidelink wake-up signaling between the first UE and a second UE. In some cases, the UE can determine a joint index to be used to determine resources. The UE can determine, based on the WUS configuration, a first resource set for the first UE to transmit WUS (e.g., a WUS or paging signal) within the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE within the WUS monitoring timing. In some cases, this determination can be based on a joint index. The UE can use the first resource set to transmit WUS to the second UE within the WUS monitoring timing based on the identification of a service for the second UE at the first UE. In some cases, the first UE can monitor the second resource set for the second WUS from the second UE, and can also monitor the sidelink transmission from the second UE based on the received second WUS.

[0007] A method for wireless communication at a first UE is described. The method may include: identifying an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE; determining, based on the WUS configuration, a first resource set for the first UE to transmit WUS during the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing; and using the first resource set to transmit WUS to the second UE during the WUS monitoring timing based on the identification of a service for the second UE at the first UE.

[0008] An apparatus for wireless communication at a first UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions, executable by the processor, cause the apparatus to: identify an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE; determine, based on the WUS configuration, a first resource set for the first UE to transmit WUS during the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing; and, based on the identification of a service for the second UE at the first UE, transmit WUS to the second UE using the first resource set during the WUS monitoring timing.

[0009] Another apparatus for wireless communication at a first UE is described. The apparatus may include: components for identifying an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE; components for determining, based on the WUS configuration, a first resource set for the first UE to transmit WUS during the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing; and components for using the first resource set to transmit WUS to the second UE during the WUS monitoring timing based on the identification of a service for the second UE at the first UE.

[0010] A non-transitory computer-readable medium is described, storing code for wireless communication at a first UE. The code may include instructions executable by a processor to: identify an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE; determine, based on the WUS configuration, a first resource set for the first UE to transmit WUS during the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing; and, based on the identification of a service for the second UE at the first UE, transmit WUS to the second UE using the first resource set during the WUS monitoring timing.

[0011] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining a joint index for a first UE and a second UE.

[0012] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following operations: determining a first resource set based on a composite index, and determining a second resource set for a second UE based on a composite index.

[0013] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the composite index may be indicated in the WUS configuration.

[0014] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following: determining the amount of time resources and frequency resources available for WUS monitoring, wherein the first set of resources may be determined based on the amount of time resources and frequency resources available for WUS monitoring.

[0015] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining a first resource set based on an identifier of a first UE and a joint index for the first UE and a second UE.

[0016] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following: determining a coordination rule between a first UE and a second UE, wherein a first resource set may be determined according to the coordination rule, wherein the coordination rule indicates the first resource set or the second resource set based on a comparison of identifiers associated with the first UE and the second UE.

[0017] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following: determining a hopping pattern for a sidelink control channel between a first UE and a second UE, wherein a first resource set may be determined based on the hopping pattern.

[0018] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the WUS monitoring timing includes two time-domain resource elements, and the methods, apparatuses, and non-transitory computer-readable media may also include operations, features, components, or instructions for performing the following: determining a first resource set as a first time-domain resource in the two time-domain resource elements based on an identifier of a first UE, the first time-domain resource corresponding to either an odd-numbered time index value or an even-numbered time index value.

[0019] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing: based on WUS configuration, monitoring a second resource set for a second WUS from a second UE.

[0020] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing: receiving a second WUS from a second UE based on monitoring, and monitoring sidelink transmissions from a second UE based on receiving a second wake-up signal.

[0021] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, identifying an indication of WUS configuration may include an operation, feature, component or instruction for receiving an indication of WUS configuration from a second UE or from a base station.

[0022] A method for wireless communication at a first UE is described. The method may include: identifying an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE; determining, based on the WUS configuration, a first resource set for the first UE to transmit WUS during the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing; and using the first resource set to transmit WUS to the second UE during the WUS monitoring timing based on the identification of a service for the second UE at the first UE.

[0023] An apparatus for wireless communication at a first UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: identify an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE; determine, based on the WUS configuration, a first resource set for the first UE to transmit WUS during the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing; and, based on the identification of a service for the second UE at the first UE, transmit WUS to the second UE using the first resource set during the WUS monitoring timing.

[0024] Another apparatus for wireless communication at a first UE is described. The apparatus may include: components for identifying an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE; components for determining, based on the WUS configuration, a first resource set for transmission of WUS by the first UE during the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing; and components for using the first resource set to transmit WUS to the second UE during the WUS monitoring timing based on the identification of a service for the second UE at the first UE.

[0025] A non-transitory computer-readable medium is described, storing code for wireless communication at a first UE. The code may include instructions executable by a processor to: identify an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE; determine, based on the WUS configuration, a first resource set for the first UE to transmit WUS during the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing; and, based on the identification of a service for the second UE at the first UE, transmit WUS to the second UE using the first resource set during the WUS monitoring timing.

[0026] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining a joint index for a first UE and a second UE.

[0027] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following operations: determining a first resource set based on a composite index, and determining a second resource set for a second UE based on a composite index.

[0028] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the composite index may be indicated in the WUS configuration.

[0029] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following: determining the amount of time resources and the amount of frequency resources for the WUS monitoring occasion, wherein the first resource set may be determined based on the amount of time resources and the amount of frequency resources for the WUS monitoring occasion.

[0030] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining a first resource set based on an identifier of a first UE and a joint index for the first UE and a second UE.

[0031] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following: determining a coordination rule between a first UE and a second UE, wherein a first resource set may be determined according to the coordination rule, wherein the coordination rule indicates the first resource set or the second resource set based on a comparison of identifiers associated with the first UE and the second UE.

[0032] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following: determining a hopping pattern for a sidelink control channel between a first UE and a second UE, wherein a first resource set may be determined based on the hopping pattern.

[0033] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the WUS monitoring timing includes two time-domain resource elements, and the methods, apparatuses, and non-transitory computer-readable media may also include operations, features, components, or instructions for performing the following: determining a first resource set as a first time-domain resource in the two time-domain resource elements based on an identifier of a first UE, the first time-domain resource corresponding to either an odd-numbered time index value or an even-numbered time index value.

[0034] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing: based on WUS configuration, monitoring a second resource set for a second WUS from a second UE.

[0035] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing: receiving a second WUS from a second UE based on monitoring, and monitoring sidelink transmissions from a second UE based on receiving a second wake-up signal.

[0036] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, identifying an indication of WUS configuration may include an operation, feature, component or instruction for receiving an indication of WUS configuration from a second UE or from a base station.

[0037] A method for wireless communication at a first UE is described. The method may include: identifying an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE; determining, based on the WUS configuration, a first resource set for the first UE to transmit WUS during the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing; and using the first resource set to transmit WUS to the second UE during the WUS monitoring timing based on the identification of a service for the second UE at the first UE.

[0038] An apparatus for wireless communication at a first UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: identify an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE; determine, based on the WUS configuration, a first resource set for the first UE to transmit WUS during the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing; and, based on the identification of a service for the second UE at the first UE, transmit WUS to the second UE using the first resource set during the WUS monitoring timing.

[0039] Another apparatus for wireless communication at a first UE is described. The apparatus may include: components for identifying an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE; components for determining, based on the WUS configuration, a first resource set for transmission of WUS by the first UE during the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing; and components for using the first resource set to transmit WUS to the second UE during the WUS monitoring timing based on the identification of a service for the second UE at the first UE.

[0040] A non-transitory computer-readable medium is described, storing code for wireless communication at a first UE. The code may include instructions executable by a processor to: identify an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE; determine, based on the WUS configuration, a first resource set for the first UE to transmit WUS during the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing; and, based on the identification of a service for the second UE at the first UE, transmit WUS to the second UE using the first resource set during the WUS monitoring timing.

[0041] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining a joint index for a first UE and a second UE.

[0042] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for performing the following operations: determining a first resource set based on a composite index, and determining a second resource set for a second UE based on a composite index. Attached Figure Description

[0043] Figure 1 An example of a wireless communication system that supports resource allocation for bidirectional sidelink wake-up and paging according to various aspects of this disclosure is illustrated.

[0044] Figure 2 An example of a wireless communication system is illustrated, which supports resource allocation techniques for bidirectional sidelink wake-up and paging according to various aspects of this disclosure.

[0045] Figure 3A , 3B The diagram above illustrates an example of a timing diagram for a technology supporting resource allocation for bidirectional sidelink wake-up and paging, according to various aspects of this disclosure.

[0046] Figure 4 The illustration shows an example resource determination for resource allocation for bidirectional sidelink wake-up and paging according to various aspects of this disclosure.

[0047] Figure 5 An example of a processing flow for a technology supporting resource allocation for bidirectional sidelink wake-up and paging, according to various aspects of this disclosure, is illustrated.

[0048] Figure 6 and 7 A block diagram of a device for resource allocation for bidirectional sidelink wake-up and paging, according to various aspects of this disclosure, is shown.

[0049] Figure 8 A block diagram of a communication manager supporting resource allocation for bidirectional sidelink wake-up and paging, according to various aspects of this disclosure, is shown.

[0050] Figure 9 A diagram of a system including a device supporting resource allocation for bidirectional sidelink wake-up and paging, according to various aspects of this disclosure, is shown.

[0051] Figures 10 to 15 A flowchart illustrating a method for resource allocation for bidirectional sidelink wake-up and paging, according to various aspects of this disclosure, is shown. Detailed Implementation

[0052] In some wireless communications, devices transmit and receive signals, but continuous monitoring of incoming signals at the receiving device consumes power. To save power, devices can periodically monitor for a wake-up signal (WUS) instead of continuously monitoring signaling, which conserves power. The WUS can be used to notify the device that it is ready to receive downlink signals, such as data or control signals.

[0053] WUS can also be used in sidelink communication, where a UE can communicate with another UE. In this case, the UE can also perform periodic monitoring of the WUS to conserve power. During communication via the sidelink, a UE can transmit a WUS to notify another UE that it is ready to receive signals (such as data or control signals). In some cases, each UE may transmit a corresponding WUS to another UE at the same (or overlapping) time period, which may result in no UE receiving the WUS (e.g., in a situation where one or two UEs are operating in half-duplex mode where simultaneous transmission and reception by the UE is not permitted).

[0054] To improve WUS reliability, a resource allocation scheme can be used that enables each UE to send and receive WUS via sidelink communication without conflicts or interference caused by simultaneous resource usage. This resource allocation scheme can define non-overlapping time resources to be used during WUS monitoring, where each UE can utilize a portion of the resources without interfering with or overlapping with the time resources of another UE. In some examples, the resource allocation scheme can establish a joint index defined by one or more parameters, such as an identifier associated with the UE.

[0055] In some examples, the resource allocation scheme can be derived using the Latin square method to avoid overlap between time and frequency resources. In this way, each UE can utilize given time and frequency resources, where a given UE can send a WUS to another UE as part of sidelink communication. This technique can reduce or prevent situations where two UEs attempt to send a WUS on the same time period and neither receives the WUS (e.g., in an example where either or both UEs are operating in half-duplex mode). In some examples, rules can be specified regarding which resources are assigned to each UE in the resource allocation scheme. Such techniques are applicable to bidirectional paging using bidirectional paging channels; therefore, all descriptions related to WUS herein can be similarly applied to paging. Furthermore, WUS can also be referred to as a paging channel or paging signal, or interchangeably with paging channel or paging signal.

[0056] The aspects of this disclosure are initially described in the context of a wireless communication system. These aspects are then illustrated using timing diagrams, resource allocation schemes, and processing flows. The aspects of this disclosure are further illustrated and described with reference to apparatus diagrams, system diagrams, and flowcharts relating to resource allocation for bidirectional sidelink wake-up and paging.

[0057] Figure 1An example of a wireless communication system 100 supporting techniques for bidirectional wake-up signals in sidelink transmission according to various aspects of this disclosure is illustrated. 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-APro 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.

[0058] Base stations 105 can be distributed throughout a geographical area to form a wireless communication system 100, and can be devices of different forms or with different capabilities. Base stations 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. The coverage area 110 can be an example of a geographical area where base stations 105 and UE 115 can support signal communication according to one or more radio access technologies.

[0059] UE 115 can be distributed throughout the entire coverage area 110 of the wireless communication system 100, and each UE 115 can be stationary, mobile, or both at different times. UE 115 can be devices of different forms or with different capabilities. Some example UE 115s are shown in... Figure 1 The diagram is shown in the image. Figure 1 As shown, 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).

[0060] Base station 105 may communicate with core network 130, or with each other, or with both. For example, base station 105 may be connected to core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). Base station 105 may communicate with each other directly (e.g., directly between base stations 105) or indirectly (e.g., via core network 130) via backhaul links 120 (e.g., via X2, Xn, or other interfaces), or both. In some examples, backhaul link 120 may be one or more radio links or include one or more radio links.

[0061] 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, Node (node) B, eNodeB (eNB), next-generation NodeB or gigabit-NodeB (any of which may be referred to as gNB), home NodeB, home eNodeB or other suitable terms.

[0062] UE 115 may include or be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or some other suitable term, wherein "device" may also be referred to as a unit, station, terminal, or client, etc. UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or machine-type communication (MTC) device, etc., which can be implemented in various objects (such as appliances, vehicles, instruments, etc.).

[0063] like Figure 1 As shown, the UE 115 described herein can communicate with various types of devices, such as other UE 115s that can sometimes act as relays, as well as base station 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, etc.

[0064] UE 115 and base station 105 can wirelessly communicate with each other on one or more carriers via one or more communication links 125. The term "carrier" can refer to a set of radio 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 (e.g., a bandwidth portion (BWP)) of a radio spectrum band operating according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-APro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), coordination control signaling for carrier, user data, or other signaling operations. Wireless communication system 100 can support communication with UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation can be used with frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0065] The signal waveform transmitted via a carrier can consist of 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 can consist of one symbol period (e.g., the duration of a modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are negatively correlated. The number of bits carried by each resource element can depend on the modulation scheme (e.g., the order of the modulation scheme, the decoding rate of the modulation scheme, or both). Therefore, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate that can be used for the UE 115. 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 the use of multiple spatial layers can further improve the data rate or data integrity used for communication with the UE 115.

[0066] The time interval used for base station 105 or UE 115 can be expressed as a multiple of a basic time unit, such as T. s =1 / (Δf) max ·N f The sampling period is ) seconds, where Δf max This can represent the maximum supported subcarrier spacing, while N... f This can represent the maximum supported Discrete Fourier Transform (DFT) size. The time interval of the communication resource 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).

[0067] 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 be divided (e.g., in the time domain) 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 appended to each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple micro-time slots containing one or more symbols. In addition to the cyclic prefix, each symbol period may contain one or more (e.g., N) symbols. f Sampling period. The duration of the symbol period can depend on the subcarrier spacing or the operating frequency band.

[0068] A subframe, time slot, micro-time 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 a burst of shortened TTIs (sTTIs)).

[0069] Physical channels can be multiplexed on a carrier using various techniques. For example, one or more of Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM), or hybrid TDM-FDM techniques can be used to multiplex physical control channels and physical data channels on a downlink carrier. The control region (e.g., a control resource set (CORESET)) of a physical control channel can be defined by several symbol periods and can extend across the system bandwidth or a subset of the carrier's system bandwidth. One or more control regions (e.g., CORESETs) can be configured for a set of UEs 115. For example, one or more UEs 115 can monitor or search for 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 arranged in a cascaded manner in one or more aggregation levels. The 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 can include a common search space set configured to transmit control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115.

[0070] In some examples, base station 105 may be mobile, thereby providing communication coverage to mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but 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 for various geographic coverage areas 110.

[0071] 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 can include communication from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application, which uses the information or presents it to humans interacting with the application. Some UE 115 devices can be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, health monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based service charging.

[0072] Some UE 115s can be configured to operate in a power-saving mode, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception, but not simultaneous transmission and reception). In some examples, half-duplex communication can be performed at a reduced peak rate. Other power-saving techniques for UE 115s include entering a power-saving deep sleep mode when not involved in active communication, operating on limited bandwidth (e.g., according to narrowband communication), or a combination of these techniques. For example, some UE 115s can be configured to operate using a narrowband protocol type associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within the carrier, within the carrier's guard band, or outside the carrier.

[0073] Wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. UE 115 can be designed to support ultra-reliable, low-latency, or critical functions (e.g., mission-critical functions). Ultra-reliable communication can include private or group communication and can be supported by one or more mission-critical services, such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions can include service prioritization, and mission-critical services can 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.

[0074] In some examples, UE 115 may also be able to communicate directly with other UE 115 via device-to-device (D2D) communication link 135 (e.g., using peer-to-peer (P2P) or D2D protocols). 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 otherwise unable to receive transmissions from base station 105. In some examples, the group 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 between UE 115s is performed without the involvement of base station 105.

[0075] 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-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination thereof. Vehicles may signal information related to traffic conditions, traffic signal control, weather, safety, emergencies, or any other information related to the V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure (such as roadside units), or communicate with the network via vehicle-to-network (V2N) communication through one or more network nodes (e.g., base station 105), or both.

[0076] Core network 130 can provide 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), and can include at least one control plane entity (e.g., a mobility management entity (MME), access and mobility management function (AMF)) 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)) routing packets or interconnecting to external networks. The control plane entity can manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UE 115 served by base station 105 associated with core network 130. User IP packets can be delivered through user plane entities, which can provide IP address allocation and other functions. User plane entities can connect to IP services 150 for one or more network operators. IP services 150 can include access to the Internet, intranet(s), IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0077] 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 UE 115 through one or more other access network transmitting entities 145, which may be referred to as a radio head, smart radio head, or transmit / receive point (TRP). Each access network transmitting entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or combined into a single network device (e.g., base station 105).

[0078] Wireless communication system 100 can operate using one or more frequency bands typically in the range of 300 MHz to 300 GHz. The region from 300 MHz to 3 GHz is generally referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelength range is from approximately one decimeter to one meter. UHF waves may be blocked or redirected by buildings and environmental features, but these waves can penetrate structures sufficiently to enable macrocells to serve UE 115 located indoors. Compared to transmissions using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz, UHF wave transmissions can be associated with smaller antennas and shorter distances (e.g., less than 100 km).

[0079] Wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, wireless communication system 100 can employ License Assisted Access (LAA), LTE-Unlicensed (LTE-U) radio access technology, or NR technology in unlicensed bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band). When operating in unlicensed radio frequency spectrum bands, devices such as base station 105 and UE 115 can employ carrier sensing for collision detection and avoidance. In some examples, operation in unlicensed bands can be based on carrier aggregation configurations (e.g., LAA) that combine component carriers operating in licensed bands. Among other examples, operation in unlicensed spectrum can include downlink transmission, uplink transmission, P2P transmission, or D2D transmission.

[0080] Base station 105 or UE 115 may be equipped with multiple antennas that can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of 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 be located together at an antenna accessory (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, antenna panels may support radio frequency beamforming for signals transmitted via antenna ports.

[0081] 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., transmit beam, receive beam) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals communicating via antenna elements of an antenna array such that some signals propagating with respect to a specific orientation of the antenna array experience constructive interference while others experience destructive interference. Adjustments to the signals communicating via the antenna elements can include the transmitting or receiving device applying amplitude shifts, phase shifts, or both to the signals carried via the antenna elements associated with the device. The adjustments associated with each of the antenna elements can be defined by a beamforming weight set associated with a specific orientation (e.g., the antenna array relative to the transmitting or receiving device, or relative to some other orientation).

[0082] The first UE 115 can identify an indication of a WUS configuration for the first UE 115, the WUS configuration indicating the WUS monitoring timing (e.g., WUS monitoring timing or paging monitoring timing) for sidelink wake-up signaling between the first UE 115 and the second UE. In some cases, the first UE 115 can determine a joint index to be used to determine resources. The first UE 115 can determine a first resource set based on the WUS configuration for transmitting WUS (e.g., WUS or paging signal) by the first UE 115 within the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE within the WUS monitoring timing. In some cases, the first UE 115 can make this determination based on a joint index. The first UE 115 can use the first resource set to transmit WUS to the second UE within the WUS monitoring timing based on the identification of services for the second UE at the first UE 115. In some cases, the first UE 115 can monitor a second resource set for a second WUS from the second UE, and can also monitor sidelink transmissions from the second UE based on the received second WUS. Therefore, the first UE 115 and the second UE can transmit WUS in sidelink communication on non-overlapping resources.

[0083] Figure 2 An example of a wireless communication system 200 supporting a technique for bidirectional wake-up signals in sidelink transmission is shown. The wireless communication system 200 may include a base station 205, a first UE 210, and a second UE 215, each of which may be an example of a corresponding device as described herein. The base station 205 may serve a geographic coverage area 220. In some examples, the first UE 210 and the second UE 215 may be within the geographic coverage area 220, with the first UE 210 serving a first sidelink coverage area 225 and the second UE 215 serving a second sidelink coverage area 230. The first sidelink coverage area 225 and the second sidelink coverage area 230 may overlap, and the first UE 210 and the second UE 215 may perform sidelink communication with each other. In some sidelink communications, the first UE 210 and the second UE 215 may communicate directly with each other without the involvement or communication via the base station 205.

[0084] In some examples, and such as Figure 2As depicted, the first UE 210 and the second UE 215 may be within the geographical coverage area 220 of the base station 205. In this case, the base station 205 may transmit the WUS resource configuration 235 to both the first UE 210 and the second UE 215. In other examples, only one of the first UE 210 and the second UE 215 may be within the geographical coverage area 220, while the other UE may be outside the geographical coverage area 220. In such an example, the base station 205 may transmit the WUS resource configuration 235 to the UE within the geographical coverage area 220, and then the UE may forward the WUS resource configuration to the other UE that is not within the geographical coverage area 220.

[0085] WUS resource configuration 235 may include settings, parameters, rules, configurations, or other information that enable the first UE 210 and the second UE 215 to determine the resources used for bidirectional sidelink WUS transmission. In some embodiments, a federated index may be included in the WUS resource configuration 235. In some examples, the federated index may be determined based on one or more factors. The one or more factors may include various characteristics, identifiers, configurations, settings, rules, procedures, or other information. In some examples, the one or more factors may include the identifier (ID) of the first UE 210, the second UE 215, or both.

[0086] In some examples, the first UE 210 and the second UE 215 can each be designated to send WUS to the other UE (e.g., as shown in the image). Figure 2 The resources (WUS240 as depicted in the diagram) are determined. Such determination can be based on settings, parameters, rules, configurations, or information (e.g., federated indexes) included in the configuration. These determinations can also be based on pre-configurations of the first UE 210 or the second UE 215, or on rules, procedures, or configurations already known to the first UE 210 and the second UE 215. In some cases, the resources determined by the first UE 210 may include time-frequency resources that do not overlap with the resources determined by the second UE 215 in terms of time, frequency, or both. Such non-overlapping resources allow the first UE 210 to transmit WUS240 to the second UE 215 during a first time period and monitor WUS240 from the second UE 215 during a second time period, rather than both the first UE 210 and the second UE 215 using the same resources to transmit WUS240. This may result in a higher probability of successful reception and transmission of WUS240 from both the first UE 210 and the second UE 215.

[0087] In some examples, once the first UE 210 and the second UE 215 have received the WUS resource configuration 235 and determined the resources they will each use to transmit WUS 240 to the other UE, one of the first UE 210 or the second UE 215 can use the determined corresponding resources to transmit WUS 240. For example, the first UE 210 may have data to transmit to the second UE 215 via a sidelink, and can then use the determined resources to transmit WUS 240 according to the WUS resource configuration 235. The second UE 215 can monitor the resources used by the first UE 210 for transmitting WUS based on the WUS resource configuration 235, and can receive WUS 240 from the first UE 210. After receiving WUS 240, the second UE 215 can wake up and monitor the transmission of control information, data, or other messages from the first UE 210.

[0088] Figure 3A , 3B Examples of timing diagrams are illustrated in the 3C diagrams, which show the timing of monitoring WUS, discontinuous reception (DRX), and paging signals as used in the techniques described herein. Both WUS and paging signals are depicted in these examples, and while not all alternatives are depicted in every example, it should be understood that the WUS-related techniques described herein can also be applied to the use of paging signals.

[0089] Figure 3A The graph depicts WUS monitoring timing, WUS cycles, and various states, each of which can be associated with WUS and the techniques described herein. The horizontal axis represents the time progressing towards the right side of the graph, and the vertical axis represents the pool of available resources in the frequency domain.

[0090] At the first WUS monitoring time 305-a, the UE (e.g., as Figure 2The first UE 210 or the second UE 215 described herein can monitor WUS transmitted from another device (e.g., another UE attempting to communicate via sidelink communication through resources determined herein). Once the first WUS monitoring period 305-a ends, the UE can stop monitoring WUS for a period of time until the next monitoring period. The UE can periodically start and end monitoring periods according to a period such as WUS period 310-a. In some examples, the UE can monitor resources determined by the UE in the first WUS monitoring period 305-a that correspond to resources used by another UE (e.g., a sidelink UE communicating with the UE) to transmit WUS, as described herein. In this example, the UE may not detect any signal in the first WUS monitoring period 305-a because there is no WUS transmitted for the UE to detect. In this case, the UE can remain in a sleep state (e.g., the UE can suppress monitoring of any control, data, or other communications, can shut down one or more components, etc.) until the second WUS monitoring period 315-a.

[0091] At the second WUS monitoring point 315-a, the UE can receive WUS 320-a. WUS 320-a can be a reference. Figure 2 The description includes an example of the WUS240. The WUS 320-a can be communicated by another device based on configuration (e.g., regarding...). Figure 2 The WUS resource configuration 235 describes the resource transmissions determined by the UE. In response to the detection of WUS 320-a, the UE receiving WUS 32-0a may enter wake-up state 325-a for the remainder of the WUS cycle following the second WUS monitoring opportunity 315-a. During wake-up state 325-a, the UE may actively monitor or may be available to receive other transmissions, such as configuration transmissions, data transmissions, or other transmissions from the device transmitting WUS 320-a. In some cases, the UE may receive control information (e.g., sidelink control information (SCI) 322), sidelink data 324, or both during wake-up state 325-a. In some examples, the UE may monitor resources determined by the UE in the second WUS monitoring opportunity 315-a that correspond to resources used by another UE (e.g., a sidelink UE communicating with the UE) for WUS transmissions, as described herein.

[0092] Once wake-up state 325-a and the corresponding WUS cycle end, the UE monitors the third WUS monitoring opportunity 330-a. During the third WUS monitoring opportunity 330-a, the UE monitors the WUS signal, and in this example, no WUS is detected during the third WUS monitoring opportunity 330-a. As a result, the UE can then enter sleep cycle 335-a for the remainder of the corresponding WUS cycle.

[0093] Figure 3B The timing of WUS monitoring is described, which may be about Figure 3A Examples of those described. Figure 3A It also includes the DRX process. The horizontal axis depicts the time progressing forward toward the right side of the graph, and the vertical axis depicts the pool of available resources in the frequency domain.

[0094] At the first WUS monitoring time 305-b and the second WUS monitoring time 315-b, the UE monitors the WUS, similar to the first WUS monitoring time 305-a and the second WUS monitoring time 315-a described herein. In some examples, the UE may monitor resources determined by the UE in the first WUS monitoring time 305-b that correspond to resources used by another UE (e.g., a sidelink UE communicating with the UE) for transmitting the WUS, as described herein. Optionally, the UE may be configured for DRX and may monitor during DRX monitoring time 340 and DRX monitoring time 345 according to DRX cycle 350. During such times, the UE may monitor WUS, paging signals, or other transmissions for the UE. For example, the UE may monitor the Physical Downlink Control Channel (PDCCH) during DRX monitoring time 340 to determine whether data will be transmitted to the UE via the Physical Downlink Shared Channel (PDCSH). In some embodiments, DRX monitoring time 340, DRX monitoring time 345, and DRX cycle 350 may be associated with paging operations.

[0095] Figure 3C A timing diagram associated with the paging operation is depicted. The horizontal axis depicts the time progressing towards the right side of the diagram, and the vertical axis depicts the pool of available resources in the frequency domain.

[0096] In some examples, the techniques described herein can also be used in conjunction with paging operations. In some aspects, paging operations can operate on periods or cycles longer than those of WUS.

[0097] At the first paging monitoring time 352, the UE may monitor one or more resources in response to a paging signal. Afterward, the UE may terminate monitoring for a period of time until the second paging monitoring time 355 begins. In some examples, the UE may monitor resources identified by the UE in the first paging monitoring time 352 that correspond to resources used by another UE (e.g., a sidelink UE communicating with the UE) to transmit paging signals, as described herein. The UE may periodically start and end paging monitoring times and may establish a paging periodicity 358. At the first paging monitoring time 352, the UE may not detect a paging signal. However, at the second paging monitoring time 355, the UE may detect a paging signal 360. Upon detecting paging signal 360, the UE may re-establish a connection with another device at 365. For example, as a result of detecting paging signal 360, the UE may re-establish a PC5 connection or other sidelink connection with another UE. Alternatively or additionally, as a result of receiving paging signal 360, the UE may subsequently re-establish a connection with another UE (such as regarding...). Figure 2 The second UE (215) described herein has a sidelink connection. Such paging signals can be transmitted and received using various resources determined by the techniques for implementing bidirectional sidelink paging transmission described herein.

[0098] Figure 4 The illustration depicts an exemplary resource determination for bidirectional sidelink WUS and paging transmission. The horizontal axis depicts the time travel towards the right side of the graph, and the vertical axis depicts the frequencies available for WUS and paging transmission. T 405 can refer to the number of resource elements in the time domain during WUS monitoring. NF 410 can refer to the number of resource elements in the frequency domain during WUS monitoring. N F / 2 415 can refer to the number of resource units in the frequency domain during WUS monitoring, which is the total number of available frequency resource units N. F Half of 410.

[0099] As described herein, the first UE and the second UE can determine resource allocation or assignment based on the WUS resource configuration received by the UE. In some examples, a composite index z can be established, which the first UE and the second UE can use to select resources. The composite index z can be 1 and N. T *floor(N FValues ​​between / 2). As discussed herein, the combined index z can be determined based on one or more factors, rules, configurations, or other information. In some examples, the combined index z can be determined based on the IDs of the first UE and the second UE. For example, the combined index z can be specific to the WUS resource configuration or can be transmitted within the WUS resource configuration. In other examples, the combined index z can be determined based on characteristics, parameters, IDs, or other information available to the UE. For example, the combined index z can be determined based on the UE's ID (e.g., L2 ID).

[0100] In some examples, the first UE and the second UE can then each determine resource pairs that are not temporally overlapping (e.g., non-overlapping time periods). In some examples, this can be done for the first resource (n t1 ,n f1 ) and second resource (n t2 ,n f2 These resources are indexed. In some examples, each of these indexed resources can be determined via the Latin square method, which allows resources to be temporally disjoint (e.g., not overlapping in time). Figure 4 In this configuration, each number can represent a different resource that can be used to transmit WUS or paging signals, and each pair of numbers (e.g., pairs of "1" indices, "2" indices, etc.) does not overlap in time. In this way, resource pairs corresponding to the number pairs can be identified for use by a first UE and a second UE, such that the first UE is allocated a resource set corresponding to one resource in the resource pair, and the second UE is allocated a different resource set corresponding to the other resource in the resource pair.

[0101] The resource used for the first resource (n) can be determined as follows: t1 ,n f1 ) and second resource (n t2 ,n f2 The index of n can be determined by the following formula. t1 It can be determined by n t1 =mod(z,N) T Confirmed. f1 It can be by Confirmed. t2 It can be by Confirmed. f2 It can be by Sure.

[0102] Once each UE has determined these indices and thus the resource pairs to be used for WUS transmission, the UE can determine which UE will use which resource in the resource pair identified by the determination process. In some examples, the UE can utilize rules that each UE already knows. For example, a UE with a smaller ID (e.g., L2 ID) can utilize the resource that appears first in time, and a UE with a larger ID can utilize the resource that appears later in time. Alternatively, a UE with a larger ID (e.g., L2 ID) can utilize the resource that appears first in time, and a UE with a smaller ID can utilize the resource that appears later in time. Additionally or alternatively, two UEs can alternately select the resource that appears first in time. In some examples, different rules, configurations, or determinations can be used to coordinate which UE will use which resource determined by the techniques described herein.

[0103] Under certain conditions, the identification of resources that are not temporally overlapping can be simplified. For example, the WUS monitoring period may contain only two temporal resource units (e.g., N). T In the case of (=2), the determination can be simplified so that one UE will use resources(s) with odd-numbered time indices, and another UE will use resources(s) with even-numbered time indices. A method similar to that described herein can be used to determine which UE can utilize which resource (e.g., odd-numbered or even-numbered time indexed resource).

[0104] Figure 5 An example of a processing flow 500 supporting technology for resource determination for bidirectional sidelink WUS and paging transmission is illustrated. This processing flow includes operations, signaling, or other procedures performed by a first UE 505 or a second UE 510, which may be an example of a corresponding device as described herein.

[0105] At 515, the first UE 505 can recognize a WUS configuration for the first UE 505, which can be exchanged between the first UE 505 and the second UE 510. In some examples, the WUS configuration indicates the timing of WUS monitoring for sidelink wake-up signaling between the first UE 505 and the second UE 510 (e.g., as part of the WUS configuration). In some examples, the second UE 510 can recognize a WUS configuration for the second UE 510, which can be exchanged between the first UE 505 and the second UE 510. The WUS configuration can be about... Figure 2 The example of WUS resource configuration 235 is discussed.

[0106] In some examples, the first UE 505 may receive instructions on WUS configuration from the second UE 510. In some examples, the first UE 505 and optionally the second UE 510 may receive instructions on WUS configuration from the base station. In some cases, the WUS configuration may indicate a joint index for the first UE 505 and the second UE 510.

[0107] At 520, the first UE 505 and the second UE 510 can determine resources for sidelink wake-up signaling or paging. For example, resources may include a first resource set and a second resource set within a WUS monitoring or paging monitoring period (e.g., DRX on-duration). In some cases, the first resource set and the second resource set may not overlap in time. For example, this can be achieved via... Figure 4 The described Latin square method is used to determine resources.

[0108] In some examples, resources may include multiple time resources and multiple frequency resources for WUS monitoring. In some examples, a first resource set and a second resource set may be determined based on the number of time resources and the number of frequency resources for WUS monitoring.

[0109] At point 525, the first UE 505 and optionally the second UE 510 can determine coordination rules for the determined resources between the first UE 505 and the second UE 510. For example, a first resource set and a second resource set can each be determined according to the coordination rules. In some examples, the coordination rules can indicate the first resource set or the second resource set based on a comparison of IDs associated with the first UE 505 and the second UE 510. For example, the first UE 505 may have a lower ID, and the first resource set can be utilized if it appears earlier in time. The second UE 510 may have a higher ID, and the second resource set can be utilized if it appears later in time. Based on the resource coordination rules, the first UE 505 can use resources with odd-numbered indices, and the second UE 510 can use resources with even-numbered indices.

[0110] In some examples, the first UE 505 or the second UE 510 can determine a hopping pattern for the sidelink control channel between the first UE 505 and the second UE 510. In some examples, resource coordination rules can instruct the first UE 505 to use a first resource set based on the hopping pattern, and the second UE 510 to use a second resource set based on the hopping pattern.

[0111] In some examples, WUS monitoring timing may include two time-domain resource units. In some examples, the first resource set may be a first time-domain resource in one of the two time-domain resource units, at least in part based on the identifier of the first UE 505. In some examples, the first time-domain resource may correspond to either an odd-numbered time index value or an even-numbered time index value.

[0112] Each of the first UE 505 and the second UE 510 may use the determined resources and the corresponding resource sets in the first and second resource sets to send WUS to the other UE. For example, at 530, the first UE 505 may identify a service to be sent to the second UE 510 via sidelink communication. For example, the first UE 505 may identify the existence of a service to be sent to the second UE 510 (e.g., a service generated by the first UE 505 at an upper layer). Therefore, the first UE 505 may determine to send a WUS or paging signal to the second UE 510. Such determination may be based on WUS configuration or other information.

[0113] At 535, the first UE 505 can use the first resource set to send WUS to the second UE 510 during the WUS monitoring period according to the resource coordination rules.

[0114] At position 540, the second UE 510 can monitor the WUS monitoring opportunity sent by the first UE 505 at position 535. For example, the second UE 510 can monitor the first resource set within the WUS monitoring opportunity according to the WUS cycle, such as... Figure 3A and 3B As described in [the document]. In some cases, the second UE 510 can receive WUS based on monitoring.

[0115] At point 545, the first UE 505 may send a sidelink control message (e.g., SCI), a sidelink data message, or both to the second UE 510 based on the service identified at point 530. The sidelink control message may include configuration or scheduling information for the service identified at point 530, or it may include other communications.

[0116] At 550, the second UE 510 can identify services intended for transmission to the first UE 505 via sidelink communication. For example, the second UE 510 can identify the existence of a service to be transmitted to the first UE 505 (e.g., a service generated by the second UE 510 at an upper layer). Therefore, the second UE 510 can determine to send a WUS or paging signal to the first UE 505. Such determination can be based on WUS configuration or other information.

[0117] At 555, the second UE 510 may send WUS to the first UE 505 using the second resource set during the WUS monitoring period, in accordance with the resource coordination rules.

[0118] At position 560, the first UE 505 can monitor the WUS monitoring timing of the WUS sent by the second UE 510 at position 555. For example, the first UE 505 can monitor the second resource set within the WUS monitoring timing according to the WUS cycle, such as... Figure 3A and 3B As described in [the document]. In some cases, the first UE 505 can receive WUS based on monitoring.

[0119] At point 565, the second UE 510 may send a sidelink control message (e.g., SCI), a sidelink data message, or both to the first UE 505 based on the service identified at point 550. The sidelink control message may include configuration or scheduling information for the service identified at point 550, or may include other communications.

[0120] Figure 6 A block diagram 600 of a device 605 supporting resource allocation for bidirectional sidelink wake-up and paging according to various aspects of this disclosure is shown. Device 605 may be an example of various aspects of UE 115 as described herein. Device 605 may include a receiver 610, a transmitter 615, and a communications manager 620. Device 605 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0121] Receiver 610 may provide components for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to resource allocation for bidirectional sidelink wake-up and paging). The information may be transmitted to other components of device 605. Receiver 610 may utilize a single antenna or a collection of antennas.

[0122] Transmitter 615 may provide components for transmitting signals generated by other components of device 605. For example, transmitter 615 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to resource allocation for bidirectional sidelink wake-up and paging). In some examples, transmitter 615 may be co-located with receiver 610 in a transceiver module. Transmitter 615 may utilize a single antenna or a collection of multiple antennas.

[0123] The communication manager 620, receiver 610, transmitter 615, or various combinations thereof or various components thereof may be examples of parts for performing various aspects of resource allocation for bidirectional sidelink wake-up and paging as described herein. For example, the communication manager 620, receiver 610, transmitter 615, or various combinations thereof or components thereof may support methods for performing one or more functions described herein.

[0124] In some examples, the communication manager 620, receiver 610, transmitter 615, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuitry system). The hardware may include a processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of components configured to or otherwise support the performance of the functions described herein. In some examples, the processor and memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in memory by the processor).

[0125] Additionally or alternatively, in some examples, the communication manager 620, receiver 610, transmitter 615, or various combinations or components thereof may be implemented using code executed by a processor (e.g., as communication management software or firmware). If implemented using processor-executed code, the functionality of the communication manager 620, receiver 610, transmitter 615, or various combinations or components thereof may be performed by a general-purpose processor, DSP, central processing unit (CPU), ASIC, FPGA, or any combination of these or other programmable logic devices (e.g., components configured or otherwise supported for performing the functions described in this disclosure).

[0126] In some examples, the communication manager 620 may be configured to perform various operations (e.g., receive, monitor, transmit) using or otherwise cooperating with the receiver 610, transmitter 615, or both. For example, the communication manager 620 may receive information from the receiver 610, transmit information to the transmitter 615, or integrate with or in combination with the receiver 610, transmitter 615, or both to receive information, transmit information, or perform various other operations as described herein.

[0127] Communication manager 620 may support wireless communication at a first UE according to the example disclosed herein. For example, communication manager 620 may be configured or otherwise supported to support components for identifying an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE. Communication manager 620 may be configured or otherwise supported to support components for determining, based on the WUS configuration, a first resource set for transmission of WUS by the first UE within the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE within the WUS monitoring timing. Communication manager 620 may be configured or otherwise supported to use the first resource set to transmit WUS to the second UE within the WUS monitoring timing based on the identification of a service for the second UE at the first UE.

[0128] By including or configuring the communication manager 620 according to the examples described herein, the device 605 (e.g., a processor that controls or otherwise couples to the receiver 610, transmitter 615, communication manager 620, or a combination thereof) can support techniques for reducing power consumption and utilizing communication resources more efficiently.

[0129] Figure 7 A block diagram 700 of a device 705 supporting resource allocation for bidirectional sidelink wake-up and paging according to various 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 transmitter 715, and a communications manager 720. Device 705 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0130] Receiver 710 may provide components for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to resource allocation for bidirectional sidelink wake-up and paging). The information may be transmitted to other components of device 705. Receiver 710 may utilize a single antenna or a collection of antennas.

[0131] Transmitter 715 may provide components for transmitting signals generated by other components of device 705. For example, transmitter 715 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to resource allocation for bidirectional sidelink wake-up and paging). In some examples, transmitter 715 may be co-located with receiver 710 in a transceiver module. Transmitter 715 may utilize a single antenna or a collection of multiple antennas.

[0132] Device 705 or its various components may be examples of parts used to perform various aspects of resource allocation for bidirectional sidelink wake-up and paging as described herein. For example, communication manager 720 may include WUS configuration manager 725, resource determination manager 730, WUS transmission manager 735, or any combination thereof. Communication manager 720 may be examples of various aspects of communication manager 620 as described herein. In some examples, communication manager 720 or its various components may be configured to perform various operations (e.g., receive, monitor, transmit) using receiver 710, transmitter 715, or both, or otherwise in cooperation with receiver 710, transmitter 715, or both. For example, communication manager 720 may receive information from receiver 710, transmit information to transmitter 715, or integrate with receiver 710, transmitter 715, or a combination thereof to receive information, transmit information, or perform various other operations as described herein.

[0133] Communication manager 720 may support wireless communication at a first UE according to the example disclosed herein. WUS configuration manager 725 may be configured or otherwise supported to support components for identifying an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and the second UE. Resource determination manager 730 may be configured or otherwise supported to support components for determining a first resource set for WUS transmission by the first UE during the WUS monitoring timing based on the WUS configuration, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing. WUS transmission manager 735 may be configured or otherwise supported to use the first resource set to transmit WUS to the second UE during the WUS monitoring timing based on the identification of a service for the second UE at the first UE.

[0134] Figure 8 A block diagram 800 of a communication manager 820 supporting resource allocation for bidirectional sidelink wake-up and paging according to various aspects of this disclosure is shown. The communication manager 820 may be an example of aspects of the communication manager 620, communication manager 720, or both as described herein. The communication manager 820 or its various components may be examples of parts for performing various aspects of resource allocation for bidirectional sidelink wake-up and paging as described herein. For example, the communication manager 820 may include a WUS configuration manager 825, a resource determination manager 830, a WUS transmit manager 835, a WUS receive manager 840, a coordination rule manager 845, or any combination thereof. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses).

[0135] Communication manager 820 may support wireless communication at a first UE according to an example disclosed herein. WUS configuration manager 825 may be configured or otherwise supported to include components for identifying an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and the second UE. Resource determination manager 830 may be configured or otherwise supported to include components for determining a first resource set for WUS transmission by the first UE during the WUS monitoring timing based on the WUS configuration, the first resource set being temporally disjoint from a second resource set for the second UE during the WUS monitoring timing. WUS transmission manager 835 may be configured or otherwise supported to use the first resource set to transmit WUS to the second UE during the WUS monitoring timing based on the identification of a service for the second UE at the first UE.

[0136] In some examples, the resource determination manager 830 can be configured or otherwise supported for a component used to determine the joint index for the first UE and the second UE.

[0137] In some examples, the resource determination manager 830 may be configured or otherwise support components for determining a first resource set based on a composite index. In some examples, the resource determination manager 830 may be configured or otherwise support components for determining a second resource set for a second UE based on a composite index.

[0138] In some examples, the composite index is indicated in the WUS configuration.

[0139] In some examples, the resource determination manager 830 may be configured or otherwise support components for determining the number of time resources and the number of frequency resources for WUS monitoring, wherein the first resource set is determined based on the number of time resources and the number of frequency resources for WUS monitoring.

[0140] In some examples, the resource determination manager 830 may be configured or otherwise support components for determining a first resource set based on an identifier of a first UE and a combined index for the first UE and the second UE.

[0141] In some examples, the coordination rule manager 845 may be configured or otherwise support components for determining coordination rules between a first UE and a second UE, wherein a first resource set is determined according to coordination rules, wherein the coordination rules indicate a first resource set or a second resource set based on a comparison of identifiers associated with the first UE and the second UE.

[0142] In some examples, the resource determination manager 830 may be configured or otherwise support components for determining the hopping pattern for the side link control channel between the first UE and the second UE, wherein the first resource set is determined based on the hopping pattern.

[0143] In some examples, the WUS monitoring timing includes two time-domain resource units, and the resource determination manager 830 can be configured or otherwise supported to include components for determining a first resource set as a first time-domain resource in the two time-domain resource units based on the identifier of the first UE, the first time-domain resource corresponding to either an odd-numbered time index value or an even-numbered time index value.

[0144] In some examples, the WUS receiver manager 840 may be configured or otherwise support components for WUS monitoring of a second resource set from a second UE based on the WUS configuration.

[0145] In some examples, the WUS receiver manager 840 may be configured or otherwise support components for receiving a second WUS from a second UE based on monitoring. In some examples, the WUS receiver manager 840 may be configured or otherwise support components for monitoring sidelink transmissions from a second UE based on the receipt of the second WUS.

[0146] In some examples, in order to support the identification of indications for WUS configuration, the WUS configuration manager 825 may be configured or otherwise supported to support components for receiving indications for WUS configuration from a second UE or from a base station.

[0147] Figure 9 A diagram of a system 900 including device 905 supporting resource allocation for bidirectional sidelink wake-up and paging, according to various aspects of this disclosure, is shown. Device 905 may be an example of a component of device 605, device 705, or UE 115 as described herein, or may include components of device 605, device 705, or UE 115 as described herein. Device 905 may wirelessly communicate with one or more base stations 105, UE 115, or any combination thereof. Device 905 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, such as a communication manager 920, an input / output (I / O) controller 910, a transceiver 915, an antenna 925, a memory 930, a code 935, and a processor 940. These components may communicate electronically or be otherwise coupled (e.g., operatively, communicatively, functionally, electronically, or electrically) via one or more buses (e.g., bus 945).

[0148] I / O controller 910 can manage input and output signals for device 905. I / O controller 910 can also manage peripheral devices not integrated into device 905. In some cases, I / O controller 910 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 910 can utilize an operating system, such as... Or another known operating system. Additionally or alternatively, the I / O controller 910 may represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 910 may be implemented as part of a processor (such as processor 940). In some cases, a user may interact with device 905 via the I / O controller 910 or via hardware components controlled by the I / O controller 910.

[0149] In some cases, device 905 may include a single antenna 925. However, in other cases, device 905 may have more than one antenna 925, which are capable of simultaneously transmitting or receiving multiple wireless transmissions. Transceiver 915 may communicate bidirectionally via one or more antennas 925, wired or wireless links, as described herein. For example, transceiver 915 may represent a wireless transceiver and be capable of bidirectional communication with another wireless transceiver. Transceiver 915 may also include a modem to modulate packets, provide modulated packets to one or more antennas 925 for transmission, and demodulate packets received from the one or more antennas 925. Transceiver 915, or transceiver 915 and one or more antennas 925, may be an example of transmitter 615, transmitter 715, receiver 610, receiver 710, or any combination thereof or components thereof as described herein.

[0150] 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 by processor 940, cause device 905 to perform the various functions described herein. Code 935 may be stored in a non-transitory computer-readable medium, such as system memory or another type of memory. In some cases, code 935 may not be directly executed by processor 940, but may instead cause a computer (e.g., when compiled and executed) to perform the functions described herein. In some cases, memory 930 may, in particular, include a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0151] Processor 940 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 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 resource allocation for bidirectional sidelink wake-up and paging). For example, device 905 or components of device 905 may include processor 940 and memory 930 coupled to processor 940, processor 940 and memory 930 being configured to perform the various functions described herein.

[0152] The communication manager 920 may support wireless communication at a first UE according to an example disclosed herein. For example, the communication manager 920 may be configured or otherwise supported to support components for identifying an indication of a WUS configuration for the first UE, the WUS configuration indicating a WUS monitoring timing for sidelink wake-up signaling between the first UE and a second UE. The communication manager 920 may be configured or otherwise supported to support components for determining, based on the WUS configuration, a first resource set for transmission of WUS by the first UE within the WUS monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE within the WUS monitoring timing. The communication manager 920 may be configured or otherwise supported to use the first resource set to transmit WUS to the second UE within the WUS monitoring timing based on the identification of a service for the second UE at the first UE.

[0153] By including or configuring a communication manager 920 according to the examples described herein, device 905 can support technologies for improved communication reliability, reduced latency, improved user experience associated with reduced processing, reduced power consumption, more efficient use of communication resources, improved coordination between devices, and longer battery life.

[0154] In some examples, the communication manager 920 may be configured to use or otherwise cooperate with transceiver 915, one or more antennas 925, or any combination thereof to perform various operations (e.g., receiving, monitoring, transmitting). Although the communication manager 920 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 920 may be supported or performed by processor 940, memory 930, code 935, or any combination thereof. For example, code 935 may include instructions executable by processor 940 to cause device 905 to perform various aspects of resource allocation for bidirectional sidelink wake-up and paging as described herein, or processor 940 and memory 930 may be otherwise configured to perform or support such operations.

[0155] Figure 10 A flowchart illustrating a method 1000 for resource allocation supporting bidirectional sidelink wake-up and paging according to various aspects of this disclosure is shown. Operation of method 1000 can be implemented by a UE or its components as described herein. For example, operation of method 1000 can be implemented by, as referred to... Figures 1 to 9 The UE 115 described is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the described function.

[0156] At 1005, the method may include: identifying an indication of WUS configuration for a first UE, the WUS configuration indicating the timing of WUS monitoring for sidelink wake-up signaling between the first UE and the second UE. The operation of 1005 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1005 may be derived from, as referenced... Figure 8 The WUS Configuration Manager 825 is described and executed.

[0157] At 1010, the method may include: determining a first resource set based on WUS configuration for WUS transmission by a first UE during WUS monitoring, the first resource set being temporally disjoint from a second resource set for a second UE during WUS monitoring. The operation of 1010 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1010 may be derived from, as referenced... Figure 8 The resource manager 830 is described and executed.

[0158] At point 1015, the method may include: based on the identification of a service for the second UE at the first UE, sending a WUS to the second UE using a first resource set during a WUS monitoring period. The operation of point 1015 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of point 1015 may be derived from, as referenced... Figure 8 The WUS Send Manager 835 is described and executed.

[0159] Figure 11 A flowchart illustrating a method 1100 for resource allocation supporting bidirectional sidelink wake-up and paging according to various aspects of this disclosure is shown. Operation of method 1100 can be implemented by a UE or its components as described herein. For example, operation of method 1100 can be implemented by, as referred to... Figures 1 to 9 The UE 115 described is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the described function.

[0160] At 1105, the method may include: identifying an indication of WUS configuration for a first UE, the WUS configuration indicating the timing of WUS monitoring for sidelink wake-up signaling between the first UE and the second UE. The operation of 1105 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1105 may be derived from, as referenced... Figure 8 The WUS Configuration Manager 825 is described and executed.

[0161] At 1110, the method may include determining a joint index for the first UE and the second UE. The operation at 1110 can be performed according to the examples disclosed herein. In some examples, aspects of the operation at 1110 may be derived from, as referenced... Figure 8 The resource manager 830 is described and executed.

[0162] At 1115, the method may include: determining a first resource set based on WUS configuration for transmission of WUS by a first UE during WUS monitoring, the first resource set being temporally disjoint from a second resource set for a second UE during WUS monitoring. The operation of 1115 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1115 may be derived from, as referenced... Figure 8 The resource manager 830 is described and executed.

[0163] In step 1120, the method may include determining a first resource set based on a composite index. The operations of step 1120 can be performed according to the examples disclosed herein. In some examples, aspects of the operations of step 1120 may be derived from, as referenced... Figure 8 The resource manager 830 is described and executed.

[0164] At 1125, the method may include determining a second resource set for the second UE based on a composite index. The operation of 1125 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1125 may be derived from, as referenced... Figure 8 The resource manager 830 is described and executed.

[0165] At 1130, the method may include: based on the identification of a service for the second UE at the first UE, sending a WUS to the second UE using a first resource set during a WUS monitoring period. The operation of 1130 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1130 may be provided by reference to... Figure 8 The WUS Send Manager 835 is described and executed.

[0166] Figure 12 A flowchart illustrating a method 1200 for resource allocation supporting bidirectional sidelink wake-up and paging according to various aspects of this disclosure is shown. Operation of method 1200 can be implemented by a UE or its components as described herein. For example, operation of method 1200 can be implemented by, as referred to... Figures 1 to 9 The UE 115 described is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the described function.

[0167] At 1205, the method may include: identifying an indication of WUS configuration for a first UE, the WUS configuration indicating the timing of WUS monitoring for sidelink wake-up signaling between the first UE and the second UE. The operation of 1205 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1205 may be derived from, as referenced... Figure 8 The WUS Configuration Manager 825 is described and executed.

[0168] At 1210, the method may include determining a joint index for the first UE and the second UE. The operation of 1210 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1210 may be derived from, as referenced... Figure 8 The resource manager 830 is described and executed.

[0169] At 1215, the method may include: determining, based on WUS configuration, a first resource set for transmitting WUS by a first UE during a WUS monitoring period, the first resource set being temporally disjoint from a second resource set for a second UE during the WUS monitoring period. The operation of 1215 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1215 may be derived from, as referenced... Figure 8 The resource manager 830 is described and executed.

[0170] At 1220, the method may include determining the amount of time resources and frequency resources available for WUS monitoring, wherein the first resource set is determined based on the amount of time resources and frequency resources available for WUS monitoring. The operation of 1220 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1220 may be determined by reference to [reference needed]. Figure 8 The resource manager 830 is described and executed.

[0171] At 1225, the method may include: based on the identification of a service for the second UE at the first UE, sending a WUS to the second UE using a first resource set during a WUS monitoring period. The operation of 1225 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1225 may be provided as referenced. Figure 8 The WUS Send Manager 835 is described and executed.

[0172] Figure 13 A flowchart illustrating a method 1300 for resource allocation supporting bidirectional sidelink wake-up and paging according to various aspects of this disclosure is shown. Operation of method 1300 can be implemented by a UE or its components as described herein. For example, operation of method 1300 can be implemented by, as referred to... Figures 1 to 9 The UE 115 described is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the described function.

[0173] At 1305, the method may include: identifying an indication of WUS configuration for a first UE, the WUS configuration indicating the timing of WUS monitoring for sidelink wake-up signaling between the first UE and the second UE. The operation of 1305 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1305 may be derived from, as referenced... Figure 8 The WUS Configuration Manager 825 is described and executed.

[0174] At 1310, the method may include determining a joint index for the first UE and the second UE. The operation at 1310 can be performed according to the examples disclosed herein. In some examples, aspects of the operation at 1310 may be derived from, as referenced... Figure 8 The resource manager 830 is described and executed.

[0175] At 1315, the method may include: determining, based on WUS configuration, a first resource set for transmitting WUS by a first UE during a WUS monitoring period, the first resource set being temporally disjoint from a second resource set for a second UE during the WUS monitoring period. The operation of 1315 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1315 may be derived from, as referenced... Figure 8 The resource manager 830 is described and executed.

[0176] At 1320, the method may include: determining a coordination rule between a first UE and a second UE, wherein a first resource set is determined according to the coordination rule, wherein the coordination rule indicates a first resource set or a second resource set based on a comparison of identifiers associated with the first UE and the second UE. The operation of 1320 may be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1320 may be provided by reference to [reference needed]. Figure 8 The described coordination rule manager 845 is used to execute this.

[0177] At 1325, the method may include: based on the identification of a service for the second UE at the first UE, sending a WUS to the second UE using a first resource set during a WUS monitoring period. The operation of 1325 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1325 may be provided by reference to... Figure 8 The WUS Send Manager 835 is described and executed.

[0178] Figure 14 A flowchart illustrating a method 1400 for resource allocation supporting bidirectional sidelink wake-up and paging according to various aspects of this disclosure is shown. Operation of method 1400 can be implemented by a UE or its components as described herein. For example, operation of method 1400 can be implemented by, as referred to... Figures 1 to 9 The UE 115 described is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the described function.

[0179] At 1405, the method may include: identifying an indication of WUS configuration for a first UE, the WUS configuration indicating the timing of WUS monitoring for sidelink wake-up signaling between the first UE and the second UE. The operation of 1405 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1405 may be derived from, as referenced... Figure 8 The WUS Configuration Manager 825 is described and executed.

[0180] At 1410, the method may include: determining, based on a WUS configuration, a first resource set for transmitting WUS by a first UE during a WUS monitoring period, the first resource set being temporally disjoint from a second resource set for a second UE during the WUS monitoring period. The operation of 1410 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1410 may be derived from, as referenced... Figure 8 The resource manager 830 is described and executed.

[0181] At 1415, the method may include: based on the identification of a service for the second UE at the first UE, sending a WUS to the second UE using a first resource set during a WUS monitoring period. The operation of 1415 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1415 may be provided by reference to... Figure 8 The WUS Send Manager 835 is described and executed.

[0182] At 1420, the method may include determining a hopping pattern for a sidelink control channel between a first UE and a second UE, wherein the first resource set is determined based on the hopping pattern. The operation of 1420 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1420 may be provided by reference to... Figure 8 The resource manager 830 is described and executed.

[0183] Figure 15 A flowchart illustrating a method 1500 for resource allocation supporting bidirectional sidelink wake-up and paging according to various aspects of this disclosure is shown. Operation of method 1500 can be implemented by a UE or its components as described herein. For example, operation of method 1500 can be performed by, as described in reference... Figures 1 to 9 The UE 115 described is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the described function. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the described function.

[0184] At 1505, the method may include: identifying an indication of WUS configuration for a first UE, the WUS configuration indicating the timing of WUS monitoring for sidelink wake-up signaling between the first UE and the second UE. The operation of 1505 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1505 may be derived from, as referenced... Figure 8 The WUS Configuration Manager 825 is described and executed.

[0185] At 1510, the method may include: determining, based on WUS configuration, a first resource set for transmitting WUS by a first UE during a WUS monitoring period, the first resource set being temporally disjoint from a second resource set for a second UE during the WUS monitoring period. The operation of 1510 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of 1510 may be derived from, as referenced... Figure 8 The resource manager 830 is described and executed.

[0186] At point 1515, the method may include: based on the identification of a service for the second UE at the first UE, sending a WUS to the second UE using a first resource set during a WUS monitoring period. The operation of point 1515 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of point 1515 may be provided by reference to... Figure 8 The WUS Send Manager 835 is described and executed.

[0187] At point 1520, the method may include: monitoring a second resource set for a second WUS from a second UE, based on the WUS configuration. The operation at point 1520 can be performed according to the examples disclosed herein. In some examples, aspects of the operation at point 1520 may be derived from, as referenced... Figure 8 The WUS Receiver Manager 840 is described and executed.

[0188] At point 1525, the method may include: receiving a second WUS from a second UE based on monitoring. The operation of point 1525 can be performed according to the examples disclosed herein. In some examples, aspects of the operation of point 1525 may be derived from, as referenced... Figure 8 The WUS Receiver Manager 840 is described and executed.

[0189] At 1530, the method may include: monitoring sidelink transmissions from the second UE based on the received second WUS. The operation at 1530 can be performed according to the examples disclosed herein. In some examples, aspects of the operation at 1530 may be derived from, as referenced... Figure 8 The WUS Receiver Manager 840 is described and executed.

[0190] The following provides an overview of the various aspects of this disclosure:

[0191] Aspect 1: A method for wireless communication at a first UE, comprising: identifying an indication of a wake-up signal configuration for the first UE, the wake-up signal configuration indicating a wake-up signal monitoring timing for sidelink wake-up signaling between the first UE and a second UE; determining, at least in part based on the wake-up signal configuration, a first resource set for transmitting a wake-up signal by the first UE during the wake-up signal monitoring timing, the first resource set being temporally disjoint from a second resource set for the second UE during the wake-up signal monitoring timing; and using the first resource set to transmit a wake-up signal to the second UE during the wake-up signal monitoring timing, at least in part based on the identification of a service for the second UE at the first UE.

[0192] Aspect 2: The method according to aspect 1 further includes: determining a joint index for the first UE and the second UE.

[0193] Aspect 3: The method according to aspect 2 further includes: determining a first resource set based at least in part on a composite index; and determining a second resource set for a second UE based at least in part on a composite index.

[0194] Aspect 4: The method according to any one of Aspects 2 to 3, wherein the composite index is indicated in the wake-up signal configuration.

[0195] Aspect 5: The method according to any one of Aspects 2 to 4 further includes: determining the number of time resources and the number of frequency resources for the wake-up signal monitoring opportunity, wherein the first resource set is determined at least in part based on the number of time resources and the number of frequency resources for the wake-up signal monitoring opportunity.

[0196] Aspect 6: The method according to any one of Aspects 2 to 5 further includes: determining the first resource set based at least in part on the identifier of the first UE and a joint index for the first UE and the second UE.

[0197] Aspect 7: The method according to any one of Aspects 2 to 6 further includes: determining a coordination rule between a first UE and a second UE, wherein a first resource set is determined according to the coordination rule, wherein the coordination rule indicates the first resource set or the second resource set based at least in part on a comparison of identifiers associated with the first UE and the second UE.

[0198] Aspect 8: The method according to any one of Aspects 1 to 7 further includes: determining a hopping mode for a side link control channel between a first UE and a second UE, wherein the first resource set is determined at least in part based on the hopping mode.

[0199] Aspect 9: The method according to any one of Aspects 1 to 8, wherein the wake-up signal monitoring timing includes two time-domain resource units, the method further comprising: determining a first resource set as a first time-domain resource in the two time-domain resource units based at least in part on an identifier of a first UE, the first time-domain resource corresponding to one of an odd time index value or an even time index value.

[0200] Aspect 10: The method according to any one of Aspects 1 to 9 further includes: monitoring a second resource set for a second wake-up signal from a second UE, at least in part based on a wake-up signal configuration.

[0201] Aspect 11: The method according to aspect 10 further includes: receiving a second wake-up signal from a second UE at least in part based on monitoring; and monitoring sidelink transmissions from the second UE at least in part based on receiving the second wake-up signal.

[0202] Aspect 12: The method according to any one of Aspects 1 to 11, wherein identifying the indication for the wake-up signal configuration includes: receiving an indication for the wake-up signal configuration from a second UE or from a base station.

[0203] Aspect 13: An apparatus for wireless communication at a first 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 12.

[0204] Aspect 14: An apparatus for wireless communication at a first UE, comprising at least one component for performing the method according to any one of aspects 1 to 12.

[0205] Aspect 15: A non-transitory computer-readable medium storing code for wireless communication at a first UE, the code including instructions executable by a processor to perform the method according to any one of aspects 1 to 12.

[0206] It should be noted that the method described in this paper describes possible implementations, and the operations and steps can be rearranged or otherwise modified, and other implementations are also possible. Furthermore, two or more aspects from the method can be combined.

[0207] 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 are also applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described 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.

[0208] 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 referenced throughout the description can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.

[0209] The various illustrated 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 component, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but alternatively, it 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 combined with a DSP core, or any other such configuration).

[0210] 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 on or transmitted via a computer-readable medium as one or more instructions or code. Other examples and implementations are 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 different places, including being distributed such that portions of the functions are implemented in different physical locations.

[0211] Computer-readable media includes both non-transitory computer storage media and communication media, encompassing any medium that facilitates the delivery of a computer program from one place to another. Non-transitory storage media can be any available medium accessible by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store required program code components in the form of instructions or data structures and is accessible by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Similarly, any connection is appropriately referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology (such as infrared, radio, and microwave), then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technology (such as infrared, radio, and microwave) is included in the definition of computer-readable media. The disks and optical discs used in this article include CDs, laser discs, optical discs, DVDs, floppy disks, and Blu-ray discs, where disks typically reproduce data magnetically, while optical discs reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media.

[0212] As used herein and included in the claims, the word "or" in a list of items (e.g., a list of items beginning with phrases such as "at least one of..." or "one or more of...") indicates an inclusive list, such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Similarly, as used herein, the phrase "based on" should not be construed as a reference to a closed set of conditions. For example, an exemplary step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "at least partially based on".

[0213] The term "determine" or "determining" encompasses a wide variety of actions, and therefore, "determining" can include calculating, computation, processing, deriving, investigating, searching (such as by looking in a table, database, or other data structure), ascertaining, etc. Furthermore, "determining" can include receiving (such as receiving information), accessing (such as accessing data in memory), etc. Additionally, "determining" can include parsing, selecting, picking, building, and other similar actions.

[0214] In the accompanying drawings, similar components or features may have the same reference numerals. Furthermore, various components of the same type can be distinguished by adding a dash after the reference numeral and a second reference numeral to differentiate between similar components. If only the first reference numeral is used in the specification, the description applies to any of the similar components having the same first reference numeral, regardless of the second or other subsequent reference numerals.

[0215] The description herein, in conjunction with the accompanying drawings, illustrates exemplary configurations and does not represent all examples that can be implemented or that fall within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration," not "preferred" or "superior to other examples." Detailed descriptions, including specific details, are provided for the purpose of providing an understanding of the described techniques. However, these techniques can 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.

[0216] 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 general 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 wireless communication at a first user equipment (UE), comprising: The exchange provides an indication of the wake-up signal configuration for the first UE, the wake-up signal configuration being exchanged between the first UE and the second UE, and indicates the wake-up signal monitoring timing for sidelink wake-up signaling between the first UE and the second UE; as well as Based on the identification of the service for the second UE at the first UE, a first resource set for the first UE to send the wake-up signal to the second UE during the wake-up signal monitoring period is used. The first resource set is configured according to the wake-up signal and determined according to the coordination rules between the first UE and the second UE. The first resource set is also time-disjoint with the second resource set for the second UE during the wake-up signal monitoring period.

2. The method according to claim 1, further comprising: Determine the combined index for the first UE and the second UE.

3. The method according to claim 2, further comprising: The first resource set is determined based on the composite index; as well as The second resource set for the second UE is determined based on the combined index.

4. The method according to claim 2, wherein, The composite index is indicated in the wake-up signal configuration.

5. The method according to claim 2, further comprising: The quantity of time resources and the quantity of frequency resources for the wake-up signal monitoring timing are determined, wherein the first resource set is determined based on the quantity of time resources and the quantity of frequency resources for the wake-up signal monitoring timing.

6. The method according to claim 2, further comprising: The first resource set is determined based on the identifier of the first UE and the combined index used for the first UE and the second UE.

7. The method according to claim 2, further comprising: Determine the coordination rules between the first UE and the second UE, wherein the coordination rules are at least in part based on a comparison of identifiers associated with the first UE and the second UE to indicate the first resource set or the second resource set.

8. The method according to claim 1, further comprising: A hopping mode for the sidelink control channel between the first UE and the second UE is determined, wherein the first resource set is determined based on the hopping mode.

9. The method according to claim 1, wherein, The wake-up signal monitoring timing includes two time-domain resource units, and the method further includes: The first resource set is determined as the first time-domain resource among the two time-domain resource units based on the identifier of the first UE, and the first time-domain resource corresponds to one of the odd time index value or the even time index value.

10. The method according to claim 1, further comprising: According to the wake-up signal configuration, the second resource set is monitored in response to the second wake-up signal from the second UE.

11. The method of claim 10, further comprising: The second wake-up signal from the second UE is received based on the monitoring. as well as The side link transmission from the second UE is monitored based on the received second wake-up signal.

12. The method according to claim 1, wherein, The indication for configuring the wake-up signal includes: Receive the instruction configured for the wake-up signal from the second UE or from the base station.

13. An apparatus for wireless communication at a first user equipment (UE), comprising: processor; as well as A memory coupled to the processor, the processor and the memory being operable to enable the device to: The exchange provides an indication of the wake-up signal configuration for the first UE, the wake-up signal configuration being exchanged between the first UE and the second UE, and indicates the wake-up signal monitoring timing for sidelink wake-up signaling between the first UE and the second UE; as well as Based on the identification of the service for the second UE at the first UE, a first resource set for the first UE to send the wake-up signal to the second UE during the wake-up signal monitoring period is used. The first resource set is configured according to the wake-up signal and determined according to the coordination rules between the first UE and the second UE. The first resource set is also time-disjoint with the second resource set for the second UE during the wake-up signal monitoring period.

14. The apparatus according to claim 13, wherein, The processor and memory are also operable to enable the device to: Determine the combined index for the first UE and the second UE.

15. The apparatus according to claim 14, wherein, The processor and memory are also operable to enable the device to: The first resource set is determined based on the composite index; and The second resource set for the second UE is determined based on the combined index.

16. The apparatus according to claim 14, wherein, The composite index is indicated in the wake-up signal configuration.

17. The apparatus according to claim 14, wherein, The processor and memory are also operable to enable the device to: The quantity of time resources and the quantity of frequency resources for the wake-up signal monitoring timing are determined, wherein the first resource set is determined based on the quantity of time resources and the quantity of frequency resources for the wake-up signal monitoring timing.

18. The apparatus according to claim 14, wherein, The processor and memory are also operable to enable the device to: The first resource set is determined based on the identifier of the first UE and the combined index used for the first UE and the second UE.

19. The apparatus according to claim 14, wherein, The processor and memory are also operable to enable the device to: Determine the coordination rules between the first UE and the second UE, wherein the coordination rules are at least in part based on a comparison of identifiers associated with the first UE and the second UE to indicate the first resource set or the second resource set.

20. The apparatus according to claim 13, wherein, The processor and memory are also operable to enable the device to: A hopping mode for the sidelink control channel between the first UE and the second UE is determined, wherein the first resource set is determined based on the hopping mode.

21. The apparatus according to claim 13, wherein, The wake-up signal monitoring timing includes two time-domain resource units, and the processor and memory are also operable to enable the device to: The first resource set is determined as the first time-domain resource among the two time-domain resource units based on the identifier of the first UE, and the first time-domain resource corresponds to one of the odd time index value or the even time index value.

22. The apparatus according to claim 13, wherein, The processor and memory are also operable to enable the device to: According to the wake-up signal configuration, the second resource set is monitored in response to the second wake-up signal from the second UE.

23. The apparatus according to claim 22, wherein, The processor and memory are also operable to enable the device to: Receive the second wake-up signal from the second UE based on the monitoring; and The side link transmission from the second UE is monitored based on the received second wake-up signal.

24. The apparatus according to claim 13, wherein, The processor and memory are also operable to enable the device to: Receive the instruction configured for the wake-up signal from the second UE or from the base station.

25. An apparatus for wireless communication at a first user equipment (UE), comprising: A component for exchanging indications of wake-up signal configurations for the first UE, the wake-up signal configurations being exchanged between the first UE and the second UE, and indicating the timing of wake-up signal monitoring for sidelink wake-up signaling between the first UE and the second UE; as well as A component for sending a wake-up signal to the second UE using a first resource set for sending a wake-up signal by the first UE during the wake-up signal monitoring period, based on the identification of a service for the second UE at the first UE. The first resource set is configured according to the wake-up signal and determined according to a coordination rule between the first UE and the second UE, and the first resource set is also time-disjoint with a second resource set for the second UE during the wake-up signal monitoring period.

26. The apparatus of claim 25, further comprising: Components used to determine the joint index for the first UE and the second UE.

27. The apparatus of claim 26, further comprising: Components used to determine the first resource set based on the composite index; as well as A component for determining the second resource set for the second UE based on the combined index.

28. A non-transitory computer-readable medium storing code for wireless communication at a first user equipment (UE), the code comprising instructions executable by a processor to perform the following operations: The exchange includes an indication of the wake-up signal configuration for the first UE, which is exchanged between the first UE and the second UE, and an indication of the wake-up signal monitoring timing for sidelink wake-up signaling between the first UE and the second UE; and Based on the identification of the service for the second UE at the first UE, a first resource set for the first UE to send the wake-up signal to the second UE during the wake-up signal monitoring period is used. The first resource set is configured according to the wake-up signal and determined according to the coordination rules between the first UE and the second UE. The first resource set is also time-disjoint with the second resource set for the second UE during the wake-up signal monitoring period.

29. The non-transitory computer-readable medium according to claim 28, wherein, The instructions can also be executed by the processor to: Determine the combined index for the first UE and the second UE.

30. The non-transitory computer-readable medium according to claim 29, wherein, The instructions can also be executed by the processor to: The first resource set is determined based on the composite index; and The second resource set for the second UE is determined based on the combined index.

Images