Power saving for pedestrian user equipment

Abstract

Methods, systems, and devices for wireless communications are described. A first user equipment (UE), such as a pedestrian UE, may perform a discovery process with a second UE in a vehicle-to-everything (V2X) wireless communication environment that includes a plurality of other UEs in addition to the first UE and the second UE. The second UE may, for example, be a roadside UE configured to aggregate V2X messages for the first UE. The first UE may determine a schedule for the first UE to receive bundled V2X messages from the second UE based on performing the discovery process. The first UE may receive a message from the second UE based on the determined schedule that indicates information from a bundle of a plurality of V2X messages received at the second UE from the plurality of UEs.

Description

[0001] Cross-references

[0002] This patent application claims priority to U.S. patent application No. 17 / 066,366, entitled “POWERSAVING FOR PEDSTRIAN USER EQUIPMENTS,” filed by CHENG et al. on October 8, 2020, which claims priority to U.S. provisional patent application No. 62 / 914,878, entitled “POWER SAVING FOR PEDSTRIAN USER EQUIPMENTS,” filed by CHENG et al. on October 14, 2019, which is assigned to the assignee of this application. Technical Field

[0003] The following relates generally to wireless communications, and more particularly to power conservation for pedestrian user equipment (UE). Background Art

[0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (such as long term evolution (LTE) systems, improved LTE (LTE-A) systems, or LTE-A professional systems) and fifth generation (5G) systems (which may be referred to as new radio (NR) systems). These systems may employ techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include multiple base stations or network access nodes, each of which simultaneously supports communication for multiple communication devices (which may be further referred to as UEs).

[0005] In some wireless communication systems, such as vehicle-to-everything (V2X) communication systems, a UE may receive messages from multiple devices. Techniques for receiving these messages may be improved. Summary of the invention

[0006] The described technology relates to improved methods, systems, devices and apparatuses that support power conservation for pedestrian user equipment (UE). In summary, the described technology provides bundling of vehicle-to-everything (V2X) messages for pedestrian UEs (P-UEs). A V2X wireless communication environment may include multiple types of wireless communication devices. For example, a V2X environment may include UEs (such as P-UEs, UEs integrated into vehicles (e.g., V-UEs), and base stations. A P-UE may monitor V2X messages from other devices in the V2X wireless communication environment, which may indicate warnings, environmental information, etc. The V2X wireless communication system described herein may support bundling of V2X messages from multiple V2X devices such that a P-UE receives a single transmission for a V2X message, rather than multiple separate V2X messages.

[0007] In some cases, a roadside unit (RSU) may be an example of a UE that aggregates V2X messages from other devices and sends a message indicating the aggregated message to a P-UE. In some cases, the message may include an aggregated V2X message. In some cases, the message may be based on the aggregated V2X message, for example, by including some information (e.g., high priority information), but not the entire content of the aggregated V2X message. The RSU and the P-UE may determine a schedule for the P-UE to receive messages from the RSU, and the RSU may send a message based on the bundled V2X message to the P-UE according to the schedule. In this document, "bundled" or "bundling" may also be referred to interchangeably as "aggregated" or "aggregation", for example, a "bundled V2X message" may also be referred to as an "aggregated V2X message". Techniques for P-UE to discover RSUs are described herein. For example, RSU discovery may be based on a notification sent by the RSU (e.g., a presence notification) or based on a notification sent by the P-UE. In some examples, once it is determined that the RSU can send an indication of a bundled or aggregated message to the P-UE based on the discovery process, the P-UE can enter a low power mode until a time period for receiving a bundled or aggregated V2X message, at which time the P-UE can enter a higher power mode.

[0008] A method of wireless communication at a first UE is described. The method may include: performing a discovery process with a second UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE; determining a schedule for the first UE to receive aggregated vehicle-to-everything messages from the second UE based on performing the discovery process; and receiving a message from the second UE based on the determined schedule, the message indicating aggregated information from the set of vehicle-to-everything messages received at the second UE from the set of UEs.

[0009] An apparatus for wireless communication at a first UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to perform the following operations: perform a discovery process with a second UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE; determine a schedule for the first UE to receive aggregated vehicle-to-everything messages from the second UE based on performing the discovery process; and receive a message from the second UE based on the determined schedule, the message indicating aggregated information from the set of vehicle-to-everything messages received at the second UE from the set of UEs.

[0010] Another apparatus for wireless communication at a first UE is described. The apparatus may include means for performing the following operations: performing a discovery process with a second UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE; determining a schedule for the first UE to receive aggregated vehicle-to-everything messages from the second UE based on performing the discovery process; and receiving a message from the second UE based on the determined schedule, the message indicating aggregated information from the set of vehicle-to-everything messages received at the second UE from the set of UEs.

[0011] A non-transitory computer-readable medium storing code for wireless communication at a first UE is described. The code may include instructions executable by a processor to perform the following operations: perform a discovery process with a second UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE; determine a schedule for the first UE to receive aggregated vehicle-to-everything messages from the second UE based on performing the discovery process; and receive a message from the second UE based on the determined schedule, the message indicating aggregated information from the set of vehicle-to-everything messages received at the second UE from the set of UEs.

[0012] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving the message indicating the aggregated information from the vehicle-to-everything message set may include operations, features, units, or instructions for performing the following items: receiving a notification of the aggregated information from the second UE, wherein the second UE may have processed the vehicle-to-everything message set to generate the aggregated information for the notification.

[0013] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving the message indicating the aggregated information from the vehicle-to-everything message set may include operations, features, units, or instructions for performing the following items: receiving the message from the second UE, the message including the aggregation of the vehicle-to-everything message set.

[0014] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, performing the discovery process with the second UE may include operations, features, units, or instructions for performing: receiving a notification on a discovery channel indicating discovery information for the second UE; and sending a request to the second UE to associate with the second UE based on the received notification.

[0015] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following items: entering a second mode from a first mode based on the schedule having been determined, the second mode being associated with lower power than the first mode.

[0016] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following items: monitoring the discovery channel according to resources dedicated to discovering UEs capable of bundling vehicle-to-everything messages, and the notification is received based on the monitoring.

[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the notification includes an identifier, a permanent state, a location identifier, a transmission schedule, a transmission capability, at least one connection establishment setting, or a combination thereof for the second UE.

[0018] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, performing the discovery process with the second UE may include operations, features, units, or instructions for performing: sending a notification indicating that the first UE can be used to receive the schedule of aggregated vehicle-to-everything messages; and receiving a signal from the second UE indicating that the second UE will associate with the first UE at least partially in response to the sent notification.

[0019] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the notification includes an identifier for the first UE, a speed, a direction, a planned path, an indicator of the schedule, or a combination thereof.

[0020] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing: when operating according to the first mode, receiving a vehicle-to-everything message from at least one UE in the set of UEs; and entering a second mode based on performing the discovery process, the second mode being associated with lower power than the first mode.

[0021] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, performing the discovery process with the second UE may also include operations, features, units, or instructions for performing: determining a set of UEs capable of bundling vehicle-to-everything messages from the first UE; and selecting the second UE from the set of UEs.

[0022] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, executing the discovery process may also include operations, features, units, or instructions for performing the following: identifying a set of resources for discovering UEs capable of bundling vehicle-to-everything messages, the set of resources comprising at least a transmission period; and entering a second mode from a first mode according to the transmission period to monitor the discovery signal of the discovery process on the set of resources.

[0023] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following items: broadcasting a discontinuous reception schedule for the first UE, wherein the message indicating the aggregated information may be received during a wake-up period of the discontinuous reception schedule in response to the broadcasted discontinuous reception schedule.

[0024] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, determining the schedule may include operations, features, means, or instructions for receiving an indication of the schedule from the second UE.

[0025] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the message indicating the aggregated information may be unicast or multicast.

[0026] A method of wireless communication with a first UE at a second UE is described. The method may include: performing a discovery process with the first UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE; determining a schedule for the first UE to receive aggregated vehicle-to-everything messages based on performing the discovery process; receiving a set of vehicle-to-everything messages from the set of UEs; and sending a message indicating aggregated information from the set of vehicle-to-everything messages to the second UE according to the determined schedule.

[0027] An apparatus for wireless communication with a first UE at a second UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to perform the following operations: perform a discovery process with the first UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE; determine a schedule for the first UE to receive aggregated vehicle-to-everything messages based on performing the discovery process; receive a set of vehicle-to-everything messages from the set of UEs; and send a message indicating aggregated information from the set of vehicle-to-everything messages to the second UE according to the determined schedule.

[0028] Another apparatus for wireless communication with a first UE at a second UE is described. The apparatus may include means for performing the following operations: performing a discovery process with the first UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE; determining a schedule for the first UE to receive aggregated vehicle-to-everything messages based on performing the discovery process; receiving a set of vehicle-to-everything messages from the set of UEs; and sending a message indicating aggregated information from the set of vehicle-to-everything messages to the second UE according to the determined schedule.

[0029] A non-transitory computer-readable medium storing code for wireless communication with a first UE at a second UE is described. The code may include instructions executable by a processor to: perform a discovery process with the first UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE; determine a schedule for the first UE to receive aggregated vehicle-to-everything messages based on performing the discovery process; receive a set of vehicle-to-everything messages from the set of UEs; and send a message indicating aggregated information from the set of vehicle-to-everything messages to the second UE according to the determined schedule.

[0030] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following items: processing the vehicle-to-everything message set to generate the aggregated information of the notification, wherein sending the message includes: indicating the aggregated information from the vehicle-to-everything message set.

[0031] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing: aggregating the vehicle-to-everything message set; and sending the message including the aggregation of the vehicle-to-everything message set to the first UE.

[0032] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, performing the discovery process with the first UE may include operations, features, units, or instructions for performing: sending a notification on a discovery channel indicating discovery information for the second UE; and receiving a request from the first UE to associate with the second UE at least in part in response to the sent notification.

[0033] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the notification includes an identifier, a permanent state, a location identifier, a transmission schedule, a transmission capability, at least one connection establishment setting, or a combination thereof for the second UE.

[0034] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, performing the discovery process with the first UE may include operations, features, units, or instructions for performing: receiving a notification indicating that the first UE can be used to receive the schedule of aggregated vehicle-to-everything messages; and sending a signal to the second UE in response to the received notification indicating that the second UE will associate with the first UE.

[0035] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the notification includes an identifier for the first UE, a speed, a direction, a planned path, an indicator of the schedule, or a combination thereof.

[0036] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for sending an indication of the scheduling to the second UE.

[0037] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the message indicating the aggregated information may be unicast or multicast.

[0038] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following: identifying that there is no UE with the ability to bundle vehicle-to-everything messages from the set of UEs; and determining, based on the identification, that the second UE performs bundling of vehicle-to-everything messages for the set of UEs.

[0039] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second UE is included at a base station.

[0040] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following items: using at least one sensor of the second UE to determine environmental information for the second UE, the information sent indicating the aggregated information from the vehicle-to-everything message set and the environmental information. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 An example of a system for wireless communications that supports power conservation for pedestrian user equipment (UE) in accordance with aspects of the present disclosure is shown.

[0042] Figure 2 An example of a wireless communication system supporting power conservation for pedestrian UEs in accordance with aspects of the present disclosure is shown.

[0043] Figure 3 An example of a process flow to support power conservation for pedestrian UEs in accordance with aspects of the present disclosure is shown.

[0044] Figure 4 An example of a process flow to support power conservation for pedestrian UEs in accordance with aspects of the present disclosure is shown.

[0045] Figure 5 and 6 A block diagram of a device supporting power conservation for pedestrian UEs in accordance with aspects of the present disclosure is shown.

[0046] Figure 7 A block diagram of a communication manager supporting power conservation for pedestrian UEs in accordance with aspects of the present disclosure is shown.

[0047] Figure 8 A schematic diagram of a system including a device supporting power conservation for pedestrian UEs in accordance with aspects of the present disclosure is shown.

[0048] Figures 9 to 13A flow chart illustrating a method of supporting power conservation for pedestrian UEs in accordance with aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0049] A vehicle-to-everything (V2X) wireless communication environment may include multiple types of wireless communication devices. For example, a V2X environment may include user equipment (UE) such as a pedestrian UE (P-UE), a UE integrated into a vehicle (e.g., a V-UE), and a base station. A P-UE may monitor V2X messages from other devices in the V2X wireless communication environment. In one example, if a P-UE is approaching a busy intersection and one of the V2X devices detects a possible collision, the P-UE may receive a warning of the possible collision. A user of the P-UE may then take action to avoid the possible collision. The V2X device may identify environmental information (e.g., V2X device location, trajectory, etc.) and information of the P-UE (e.g., speed, direction, and position), and send a V2X message to the P-UE accordingly.

[0050] In some conventional V2X systems, a P-UE may receive V2X messages from multiple V2X devices. For example, in a V2X system with multiple V-UEs, the P-UE may monitor V2X messages from each of the multiple V-UEs. This may consume a lot of power at the P-UE because the P-UE may continuously monitor V2X messages in case of any emergency alerts or warnings. P-UEs of these systems may be prevented from entering a low power state.

[0051] The wireless communication systems described herein support techniques for enhancing power saving of P-UEs. For example, some V2X wireless communication systems described herein may support bundling of V2X messages from multiple V2X devices at a UE, and cause the UE to send a message indicating the bundled V2X messages to the P-UE. In this document, "bundled" or "bundling" may also be interchangeably referred to as "aggregated" or "aggregation", for example, a "bundled V2X message" may also be referred to as an "aggregated V2X message". The P-UE may then receive a single transmission from a single device instead of monitoring multiple V2X messages from multiple V2X devices. In some cases, a roadside unit (RSU) may be an example of a UE that aggregates V2X messages from other devices and sends a message indicating the bundled or aggregated message to the P-UE. The RSU and the P-UE may determine a schedule for the P-UE to receive messages from the RSU, and the RSU may send a message based on the bundled or aggregated V2X message to the P-UE according to the schedule. Techniques for P-UE to discover RSUs are described herein. For example, RSU discovery may be based on a notification sent by the RSU (e.g., a presence notification) or based on a notification sent by the P-UE. Once it is determined that the RSU may send an indication of a bundled or aggregated message to the P-UE based on the discovery process, the P-UE may enter a low power mode.

[0052] Aspects of the disclosure are first described in the context of wireless communication systems. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flow diagrams relating to power saving for pedestrian UEs.

[0053] Figure 1 An example of a wireless communication system 100 supporting power conservation for pedestrian UEs in accordance with aspects of the present disclosure is shown. The wireless communication system 100 includes a base station 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 may be a long term evolution (LTE) network, an advanced LTE (LTE-A) network, an LTE-A professional network, or a new radio (NR) network. In some cases, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, or communications with low-cost and low-complexity devices.

[0054] The base station 105 may communicate wirelessly with the UE 115 via one or more base station antennas. The base station 105 described herein may include or may be referred to by those skilled in the art as a base station transceiver, a radio base station, an access point, a radio transceiver, a node B, an evolved node B (eNB), a next generation node B, or a giganode B (any of which may be referred to as a gNB), a home node B, a home evolved node B, or some other appropriate terminology. The wireless communication system 100 may include different types of base stations 105 (e.g., macro cell base stations or small cell base stations). The UE 115 described herein may be able to communicate with various types of base stations 105 and network devices (including macro eNBs, small cell eNBs, gNBs, relay base stations, etc.).

[0055] Each base station 105 may be associated with a particular geographic coverage area 110 in which it supports communications with respective UEs 115. Each base station 105 may provide communications coverage for the respective geographic coverage area 110 via a communication link 125, and the communication link 125 between the base station 105 and the UE 115 may utilize one or more carriers. The communication link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105, or a downlink transmission from the base station 105 to the UE 115. Downlink transmissions may also be referred to as forward link transmissions, and uplink transmissions may also be referred to as reverse link transmissions.

[0056] The geographic coverage area 110 for the base station 105 can be divided into sectors, which constitute a portion of the geographic coverage area 110, and each sector can be associated with a cell. For example, each base station 105 can provide communication coverage for a macro cell, a small cell, a hotspot, or other types of cells, or various combinations thereof. In some examples, the base station 105 can be mobile and, therefore, provide communication coverage for a mobile geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies can overlap, and overlapping geographic coverage areas 110 associated with different technologies can be supported by the same base station 105 or by different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous LTE / LTE-A / LTE-A professional or NR network, in which different types of base stations 105 provide coverage for respective geographic coverage areas 110.

[0057] The term "cell" refers to a logical communication entity used for communication with a base station 105 (e.g., on a carrier), and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID)) used to distinguish adjacent cells operating via the same or different carriers. In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., machine type communication (MTC), narrowband Internet of Things (NB-IoT), enhanced mobile broadband (eMBB), or other protocol types) that may provide access to different types of devices. In some cases, the term "cell" may refer to a portion of a geographic coverage area 110 (e.g., a sector) on which the logical entity operates.

[0058] UE 115 can be dispersed throughout the wireless communication system 100, and each UE 115 can be stationary or mobile. UE 115 can also be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a user device, or some other appropriate term, wherein "device" can also be referred to as a unit, a station, a terminal, or a client. UE 115 can also be a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 can also refer to a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or an MTC device, etc., which can be implemented in various items such as electrical appliances, vehicles, meters, etc.

[0059] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or base station 105 without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay the information to a central server or application, which may utilize the information or present the information to a human interacting with the program or application. Some UEs 115 may be designed to collect information or implement automated behavior of machines. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, climate and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business billing.

[0060] Some UEs 115 may be configured to employ a reduced power consumption mode of operation, such as half-duplex communication (e.g., a mode that supports one-way communication via transmission or reception rather than simultaneous transmission and reception). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power conservation techniques for UE 115 include entering a power-saving "deep sleep" mode when not engaged in active communications or operating over limited bandwidth (e.g., in accordance with narrowband communications). In some cases, UE 115 may be designed to support critical functions (e.g., mission critical functions), and the wireless communication system 100 may be configured to provide ultra-reliable communications for these functions.

[0061] In some cases, UE 115 may also be able to communicate directly with other UE 115 (e.g., using peer-to-peer (P2P) or device-to-device (D2D) protocols). One or more UE 115 in a group of UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105, or otherwise unable to receive transmissions from the base station 105. In some cases, a group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system in which each UE 115 transmits to each other UE 115 in the group. In some cases, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving the base station 105.

[0062] The base stations 105 may communicate with the core network 130 and with each other. For example, the base stations 105 may interface with the core network 130 via a backhaul link 132 (e.g., via S1, N2, N3, or other interface). The base stations 105 may communicate with each other directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130) over a backhaul link 134 (e.g., via X2, Xn, or other interface).

[0063] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connections, and other access, routing or mobility functions. The core network 130 may be an evolved packet core (EPC), which may include at least one mobility management entity (MME), at least one serving gateway (S-GW), and at least one packet data network (PDN) gateway (P-GW). The MME may manage non-access stratum (e.g., control plane) functions such as mobility, authentication, and bearer management for UE 115 served by a base station 105 associated with the EPC. User IP packets may be transmitted through the S-GW, which itself may be connected to the P-GW. The P-GW may provide IP address allocation and other functions. The P-GW may be connected to a network operator IP service. Operator IP services may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or a packet switched (PS) streaming service.

[0064] At least some of the network devices, such as the base station 105, may include subcomponents such as access network entities, which may be examples of access node controllers (ANCs). Each access network entity may communicate with the UE 115 through a plurality of other access network transport entities, which may be referred to as radio heads, smart radio heads, or transmit / receive points (TRPs). In some configurations, the various functions of each access network entity or base station 105 may be distributed across various network devices (e.g., radio heads and access network controllers) or merged into a single network device (e.g., base station 105).

[0065] The wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Typically, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band, because the wavelength ranges from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features. However, the waves may be sufficient to penetrate structures for macro cells to provide services to UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 km) compared to transmission of smaller frequencies and longer waves using the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

[0066] The wireless communication system 100 may also operate in the Super High Frequency (SHF) region using frequency bands from 3 GHz to 30 GHz (also referred to as centimeter bands). The SHF region includes frequency bands such as the 5 GHz Industrial, Scientific, and Medical (ISM) band, which may be opportunistically used by devices that may be able to tolerate interference from other users.

[0067] The wireless communication system 100 may also operate in the extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz), also referred to as the millimeter band. In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antennas of the corresponding devices may be even smaller and more closely spaced than the UHF antennas. In some cases, this may facilitate the use of antenna arrays within the UE 115. However, the propagation of EHF transmissions may suffer from even greater atmospheric attenuation and shorter distances than SHF or UHF transmissions. The technology disclosed herein may be employed across transmissions using one or more different frequency regions, and the designated use of frequency bands across these frequency regions may differ according to countries or regulatory agencies.

[0068] In some cases, the wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 can adopt license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band (such as a 5GHz ISM band). When operating in an unlicensed radio frequency spectrum band, wireless devices (such as base stations 105 and UE 115) can use a listen-before-talk (LBT) process to ensure that the frequency channel is idle before sending data. In some cases, operations in unlicensed bands can be based on carrier aggregation configurations combined with component carriers operating in licensed bands (e.g., LAA). Operations in unlicensed spectrum can include downlink transmissions, uplink transmissions, peer-to-peer transmissions, or a combination of these items. Duplexing in unlicensed spectrum can be based on frequency division duplexing (FDD), time division duplexing (TDD), or a combination of the two.

[0069] In some examples, the base station 105 or the UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. For example, the wireless communication system 100 may use a transmission scheme between a transmitting device (e.g., a base station 105) and a receiving device (e.g., a UE 115), wherein the transmitting device is equipped with multiple antennas and the receiving device is equipped with one or more antennas. MIMO communication may employ multipath signal propagation to improve spectral efficiency by transmitting or receiving multiple signals (which may be referred to as spatial multiplexing) via different spatial layers. For example, a transmitting device may transmit multiple signals via different antennas or different combinations of antennas. Similarly, a receiving device may receive multiple signals via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams. Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO) (where multiple spatial layers are sent to the same receiving device) and multi-user MIMO (MU-MIMO) (where multiple spatial layers are sent to multiple devices).

[0070] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a base station 105 or a UE 115) to form or direct an antenna beam (e.g., a transmit beam or a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array so that signals propagating at a specific orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals transmitted via antenna elements may include the transmitting device or the receiving device applying certain amplitude and phase offsets to signals carried via each of the antenna elements associated with the device. Adjustments associated with each of the antenna elements may be defined by a set of beamforming weights associated with a specific orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0071] In one example, the base station 105 may use multiple antennas or antenna arrays to perform beamforming operations for directional communication with the UE 115. For example, the base station 105 may transmit some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) multiple times in different directions, and the some signals may include signals transmitted according to different beamforming weight sets associated with different transmission directions. Transmissions in different beam directions can be used (e.g., by the base station 105 or a receiving device (such as the UE 115)) to identify the beam direction for subsequent transmission and / or reception by the base station 105.

[0072] Base station 105 may transmit some signals (such as data signals associated with a particular receiving device) in a single beam direction (e.g., a direction associated with a receiving device (such as UE 115)). In some examples, the beam direction associated with transmissions along the single beam direction may be determined based at least in part on signals transmitted in different beam directions. For example, UE 115 may receive one or more of the signals transmitted by base station 105 in different directions, and UE 115 may report to base station 105 an indication of the signal received by it having the highest signal quality or otherwise acceptable signal quality. Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may employ similar techniques to transmit signals multiple times in different directions (e.g., to identify beam directions for subsequent transmissions or receptions by UE 115) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).

[0073] When receiving various signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) from base station 105, a receiving device (e.g., UE 115, which may be an example of a mmW receiving device) may try multiple receiving beams. For example, the receiving device may try multiple receiving directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different sets of receiving beamforming weights applied to signals received at multiple antenna elements of an antenna array, or by processing received signals according to different sets of receiving beamforming weights applied to signals received at multiple antenna elements of an antenna array (any of the above operations may be referred to as "listening" according to different receiving beams or receiving directions). In some examples, the receiving device may use a single receiving beam to receive along a single beam direction (e.g., when receiving a data signal). A single receive beam can be aligned in a beam direction determined based at least in part on listening according to different receive beam directions (e.g., a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio, or otherwise acceptable signal quality based at least in part on listening according to multiple beam directions).

[0074] In some cases, the antennas of the base station 105 or UE 115 may be located within one or more antenna arrays that may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some cases, the antennas or antenna arrays associated with the base station 105 may be located at different geographical locations. The base station 105 may have an antenna array having multiple rows and columns of antenna ports that the base station 105 may use to support beamforming for communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations.

[0075] In some cases, the wireless communication system 100 can be a packet-based network operated according to a layered protocol stack. In the user plane, the communication at the bearer or packet data convergence protocol (PDCP) layer can be based on IP. The radio link control (RLC) layer can perform packet segmentation and reorganization to communicate on a logical channel. The medium access control (MAC) layer can perform priority processing and multiplexing of logical channels to transport channels. The MAC layer can also use hybrid automatic repeat request (HARQ) to provide retransmission at the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer can provide the establishment, configuration and maintenance of the RRC connection (which supports radio bearers for user plane data) between the UE 115 and the base station 105 or the core network 130. At the physical layer, the transport channel can be mapped to the physical channel.

[0076] In some cases, UE 115 and base station 105 can support retransmission of data to increase the possibility that data is successfully received. HARQ feedback is a technique that increases the possibility that data is correctly received on communication link 125. HARQ can include a combination of error detection (e.g., using cyclic redundancy check (CRC)), forward error correction (FEC) and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve the throughput at the MAC layer under poor radio conditions (e.g., signal and noise conditions). In some cases, a wireless device can support same slot HARQ feedback, wherein the device can provide HARQ feedback for data received in previous symbols in the slot in a specific slot. In other cases, the device can provide HARQ feedback in subsequent slots or according to some other time interval.

[0077] The basic time unit (which may be referred to as T s =1 / 30,720,000 seconds). The time intervals of communication resources may be organized according to radio frames each having a duration of 10 milliseconds (ms), where the frame period may be denoted as T f =307,200T s. A radio frame may be identified by a system frame number (SFN) ranging from 0 to 1023. Each frame may include 10 subframes numbered from 0 to 9, and each subframe may have a duration of 1 ms. A subframe may be further divided into 2 slots, each having a duration of 0.5 ms, and each slot may contain 6 or 7 modulation symbol periods (e.g., depending on the length of a cyclic prefix added in front of each symbol period). Excluding the cyclic prefix, each symbol period may contain 2048 sampling periods. In some cases, a subframe may be the smallest scheduling unit of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In other cases, the smallest scheduling unit of the wireless communication system 100 may be shorter than a subframe or may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI) or in a component carrier selected to use sTTI).

[0078] In some wireless communication systems, a time slot may be further divided into a plurality of micro-slots containing one or more symbols. In some instances, a symbol of a micro-slot or a micro-slot may be a minimum scheduling unit. Each symbol may vary in duration according to, for example, a subcarrier spacing or a frequency band of operation. In addition, some wireless communication systems may implement time slot aggregation, wherein a plurality of time slots or micro-slots are bundled or aggregated together and used for communication between a UE 115 and a base station 105.

[0079] The term "carrier" refers to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communications on the communication link 125. For example, a carrier of the communication link 125 may include a portion of a radio frequency spectrum band that operates according to a physical layer channel for a given radio access technology. Each physical layer channel may carry user data, control information, or other signaling. A carrier may be associated with a predefined frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be placed according to a channel grid so as to be discovered by a UE 115. A carrier may be a downlink or an uplink (e.g., in an FDD mode), or may be configured to carry downlink and uplink communications (e.g., in a TDD mode). In some examples, a signal waveform transmitted on a carrier may be composed of multiple subcarriers (e.g., using a multi-carrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)).

[0080] The organization structure of the carrier may be different for different radio access technologies (e.g., LTE, LTE-A, LTE-A Professional, NR). For example, communications on a carrier may be organized according to TTIs or time slots, each of which may include user data and control information or signaling to support decoding of the user data. A carrier may also include dedicated acquisition signaling (e.g., synchronization signals or system information, etc.) and control signaling to coordinate operations for the carrier. In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling to coordinate operations for other carriers.

[0081] Physical channels may be multiplexed on a carrier according to various techniques. For example, a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique may be used to multiplex a physical control channel and a physical data channel on a downlink carrier. In some examples, the control information sent in the physical control channel may be distributed in a cascaded manner between different control regions (e.g., between a common control region or common search space and one or more UE-specific control regions or UE-specific search spaces).

[0082] A carrier may be associated with a particular bandwidth of a radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a plurality of predetermined bandwidths for a carrier of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). In some examples, each served UE 115 may be configured to operate on part or all of the bandwidth of the carrier bandwidth. In other examples, some UEs 115 may be configured to operate using a narrowband protocol type associated with a predefined portion or range (e.g., a set of subcarriers or RBs) within a carrier (e.g., an "in-band" deployment of a narrowband protocol type).

[0083] In a system using MCM technology, a resource element may consist of a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme). Therefore, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate for UE 115 can be. In a MIMO system, wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and space resources (e.g., space layers), and the use of multiple space layers may further increase the data rate for communication with UE 115.

[0084] A device (e.g., base station 105 or UE 115) of wireless communication system 100 may have a hardware configuration that supports communication on a specific carrier bandwidth, or may be configurable to support communication on one of a set of carrier bandwidths. In some examples, wireless communication system 100 may include base station 105 and / or UE 115 that supports simultaneous communication via carriers associated with more than one different carrier bandwidths.

[0085] The wireless communication system 100 may support communication with the UE 115 on multiple cells or carriers (a feature that may be referred to as carrier aggregation or multi-carrier operation). Depending on the carrier aggregation configuration, the UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used with both FDD component carriers and TDD component carriers.

[0086] In some cases, the wireless communication system 100 can utilize an enhanced component carrier (eCC). An eCC can be characterized by one or more features including: a wider carrier or frequency channel bandwidth, a shorter symbol duration, a shorter TTI duration, or a modified control channel configuration. In some cases, an eCC can be associated with a carrier aggregation configuration or a dual connectivity configuration (e.g., when multiple serving cells have suboptimal or non-ideal backhaul links). An eCC can also be configured for use in an unlicensed spectrum or a shared spectrum (e.g., where more than one operator is allowed to use the spectrum). An eCC characterized by a wide carrier bandwidth can include one or more segments that can be used by a UE 115 that is unable to monitor the entire carrier bandwidth or is otherwise configured to use a limited carrier bandwidth (e.g., to save power).

[0087] In some cases, an eCC may utilize a different symbol duration than other component carriers, which may include using a reduced symbol duration compared to the symbol duration of the other component carriers. A shorter symbol duration may be associated with an increased spacing between adjacent subcarriers. A device utilizing an eCC (such as a UE 115 or a base station 105) may transmit a wideband signal (e.g., according to a frequency channel or carrier bandwidth of 20, 40, 60, 80 MHz, etc.) with a reduced symbol duration (e.g., 16.67 microseconds). A TTI in an eCC may consist of one or more symbol periods. In some cases, the TTI duration (i.e., the number of symbol periods in a TTI) may be variable.

[0088] In addition, the wireless communication system 100 can be an NR system that can utilize any combination of licensed, shared, and unlicensed spectrum bands. The flexibility of eCC symbol duration and subcarrier spacing can allow eCC to be used across multiple spectrums. In some examples, NR shared spectrum can improve spectrum utilization and spectrum efficiency, especially through dynamic vertical (e.g., across the frequency domain) and horizontal (e.g., across the time domain) sharing of resources.

[0089] The wireless communication system 100 may support bundling of V2X messages for pedestrian UEs. A V2X wireless communication environment, such as the wireless communication system 100, may include multiple types of wireless communication devices. For example, the V2X environment may include P-UEs 115, V-UEs, base stations 105, and other types of devices. The P-UE 115 may monitor V2X messages from other devices in the wireless communication system 100, which may indicate warnings, environmental information, etc. The wireless communication system 100 may support bundling of V2X messages from multiple V2X devices, such that the P-UE 115 receives a single transmission for the V2X message, rather than multiple separate V2X messages for multiple V2X devices.

[0090] In some cases, the RSU may be an example of a UE 115 that aggregates V2X messages from other devices and sends a message indicating the bundled or aggregated messages to the P-UE 115. In some cases, the message may include all bundled or aggregated V2X messages. In some cases, the message may be based on the bundled or aggregated V2X messages, for example, by including some information (e.g., high priority information) of the bundled or aggregated V2X messages, but not all information. The RSU and the P-UE 115 may determine a schedule for the P-UE 115 to receive messages from the RSU, and the RSU may send a message based on the bundled or aggregated V2X messages to the P-UE 115 according to the schedule. Techniques for P-UE discovery of RSUs are described herein. For example, RSU discovery may be based on a notification (e.g., presence notification) sent by the RSU (e.g., for P-UE discovery of RSUs) or based on a notification sent by the P-UE 115 (e.g., for RSU discovery of P-UEs). Once it is determined that the RSU may send an indication of the bundled or aggregated messages to the P-UE 115 based on the discovery process, the P-UE 115 may enter a low power mode.

[0091] Figure 2 An example of a wireless communication system 200 that supports power conservation for pedestrian UEs in accordance with aspects of the present disclosure is shown. In some examples, the wireless communication system 200 can implement aspects of the wireless communication system 100.

[0092] The wireless communication system 200 may be an example of a V2X wireless communication system. The wireless communication system 200 may include devices that may communicate wirelessly with each other. For example, a pedestrian UE such as a UE 115 or a P-UE 115 may communicate with other UEs 115 such as a vehicle or a V-UE 205. As shown, the V-UEs 205 may each include a wireless communication device that enables the V-UEs 205 to communicate with each other, with a base station 105, with a P-UE 115, with other wireless devices (e.g., RSU 210), or any combination thereof. In some cases, references to the V-UE 205 may refer to a wireless communication device that is integrated into the V-UE 205. The P-UE 115 may communicate with other P-UEs 115, with a V-UE 205, with a base station 105, or with other wireless devices (e.g., RSU 210).

[0093] In some V2X wireless communication systems, the P-UE 115 may receive V2X messages from V2X devices. The V2X devices may send, for example, environmental information or traffic warnings to the P-UE 115. Traffic warnings may indicate possible collisions or approaching vehicles, which may be a safety feature for pedestrians and P-UEs 115 in V2X systems. In some examples of these systems, the P-UE 115 may receive V2X messages from each neighboring V-UE 205. For example, the P-UE 115-a may receive V2X messages from V-UE 205-a, V-UE 205-b, and V-UE 205-c. The P-UE 115-a may monitor messages from each of the nearby V-UEs 205. Monitoring messages from each of the nearby devices may consume a lot of power at the P-UE 115 and prevent the P-UE 115 from entering a lower power state.

[0094] Techniques applied in wireless communication systems (such as the wireless communication system 200) described herein may support power conservation for a P-UE 115. For example, the wireless communication system 200 may support bundling of V2X messages from multiple devices (e.g., multiple V-UEs 205) and sending the bundled or aggregated messages to the P-UE 115 in a single transmission. This may reduce the amount of time that the P-UE 115 spends waking up to monitor and receive V2X messages from multiple different devices. In some cases, bundling messages as described herein may reduce the number of messages received by the P-UE 115, which may also save time for packet processing and security processing. In some cases, bundled or aggregated V2X messages may be combined, or a transmitting device may send a reduced set of information from a bundled or aggregated V2X message, which may reduce the message size for the P-UE 115.

[0095] In some cases, V2X messages may be aggregated and bundled by the UE 115. For example, the RSU 210 may receive V2X messages from other devices in the V2X wireless communication system, such as the V-UE 205. For example, the RSU 210 may receive the V2X message from the V-UE 205 over the communication link 215. The P-UE 115 may then receive a single transmission from the RSU 210. For example, the RSU and the P-UE 115-a may communicate over the RSU wireless communication link 220. The RSU 210 may be a wireless communication system such as the RSU 210. Figure 1 In some examples, the wireless communication system 200 may include one or more RSUs 210. In some cases, the RSU 210 may also be an example of a P-UE 115, a V-UE 205, or a base station 105 configured to perform features of an RSU as further described herein.

[0096] In some cases, the P-UE 115 may not be able to process the V2X message. For example, the P-UE 115 may have a limited set of capabilities, or the P-UE 115 may operate in a mode where the P-UE 115 does not process V2X messages to save power. In these examples, the RSU 210 may send a notification indication to the P-UE 115. The notification indication may include a limited set of information for a bundled or aggregated set of V2X messages. For example, the notification indication may include a warning message, etc. Therefore, in some cases, the RSU 210 may send an indication of a bundled or aggregated V2X message instead of sending multiple bundled or aggregated V2X messages to the P-UE 115, and the indication may include a reduced set of information from the bundled or aggregated V2X message. In some cases, the indication may include high priority V2X information, and the RSU 210 may discard other lower priority information for transmission to the P-UE 115.

[0097] In some examples, the P-UE 115 may be able to process V2X inputs. In this example, the RSU 210 may aggregate the V2X messages and environmental information into fewer transmissions (e.g., into one transmission). In this example, the RSU 210 may bundle V2X messages from other V2X devices (e.g., V-UE 205) and send a single transmission to the P-UE 115. Bundling V2X messages may reduce the amount of time that the P-UE 115 may spend monitoring each of the V2X messages from different V2X devices. This may reduce power consumption for reception at the P-UE 115 and reduce power consumption for message processing at the P-UE 115.

[0098] In some cases, the RSU 210 may detect environmental information based on one or more sensors at the RSU 210. For example, the RSU 210 may include one or more cameras. Using the cameras, the RSU 210 may determine whether to send a notification to the P-UE 115. For example, the RSU 210 may determine that the P-UE 115 is on a collision track with the V-UE 205, and the RSU 210 may send a notification to the P-UE 115. In some examples, such as where the RSU 210 obtains information via sensors, the RSU 210 may operate independently of transmission operations at the P-UE 115.

[0099] The RSU 210 may send messages to the P-UE 115 at a message transmission frequency (e.g., consistent with the wake-up / sleep schedule of the P-UE 115). For example, the message transmission frequency may be 100 to 200 milliseconds, which may ensure that the messages are sent frequently enough so that the P-UE 115 does not have a significant relative position change (e.g., based on the movement rate of the P-UE 115, such as a typical movement rate). For example, a message indicating a bundled or aggregated V2X message may be sent to the P-UE 115 at a rate such that the P-UE 115 may have moved within a range of approximately 25 centimeters since the last message time.

[0100] The wireless communication system 200 may also support techniques for discovering the RSU 210 at the P-UE 115. In some cases, once the P-UE 115 discovers the RSU 210 and identifies the timing instant for the RSU 210 to transmit information for a bundled or aggregated V2X message, the P-UE 115 may enter a low power state. Then, in some cases, the P-UE 115 may enter a higher power state and monitor transmissions from the RSU 210 at the corresponding instant. Once a message from the RSU 210 is received, or the transmission instant for the message has passed, the P-UE 115 may enter a low power state again.

[0101] In some cases, the RSU discovery process may be based on announcements or broadcasts from the RSU 210. Figure 3An example of a discovery process initiated by an RSU 210 is described in more detail. Multiple RSUs 210 may be present in the wireless communication system 200. In some cases, each RSU 210 may advertise its presence or an identifier (e.g., an RSU ID), or both. For example, an RSU 210-a may broadcast an identifier that distinguishes the RSU 210-a from, for example, an RSU 210-b. The P-UE 115-a may receive the announcement from the RSU 210-a, identify the RSU 210-a, and associate with the RSU 210-a. In some cases, the P-UE 115-a may then determine that a power save mode may be enabled at the P-UE 115-a.

[0102] If the P-UE 115-a recognizes multiple RSUs 210, the P-UE 115-a may determine which RSU 210 is appropriate for use. For example, the P-UE 115-a may recognize RSU 210-a and RSU 210-b. The P-UE 115-a may associate with RSU 210-a because the P-UE 115-a may be closer to RSU 210-a than to RSU 210-b. In some cases, if the P-UE 115-a was previously associated with a different RSU 210, the P-UE 115-a may update or change the association with RSU 210-a.

[0103] In some cases, the notification from the RSU 210 may include an RSU identifier, an RSU state, location information of the RSU 210, transmission scheduling information, capability information, and connection establishment settings, or any combination thereof. In some cases, the RSU identifier may be a layer 2 identifier. In some examples, the RSU state may indicate whether the RSU is a permanent RSU or operates as a temporary RSU. In some examples, the transmission scheduling information may indicate a radio resource identifier that the RSU 210 may use to send a bundled or aggregated V2X message or information associated with a bundled or aggregated V2X message. The capability information may indicate what information the RSU 210 is capable of sending. For example, the RSU 210 may indicate support for sending a bundle of V2X messages, or the RSU 210 may indicate support for sending a subset of information (e.g., high priority information) from a bundled or aggregated V2X message set. In some cases, the connection establishment settings may include an identifier for accessing a radio resource requested of the RSU 210.

[0104] In some examples, the P-UE 115 may be pre-configured with RSU presence announcement resources. For example, the P-UE 115-a may have stored, for example, in a memory, an indicator of a resource that the RSU 210-a may use to announce an identifier as part of the RSU discovery process. The P-UE 115-a may then monitor those pre-configured resources to discover the RSU 210-a and perform the discovery process. In some cases, the P-UE 115 may assume that there are many RSUs 210 in the wireless communication system (e.g., at each intersection of a road), and the P-UE 115 may enable reception only when searching for the presence of an RSU. In some other examples, the P-UE 115 may not assume that there are nearby RSUs 210, and the P-UE 115 may search for RSUs 210 only when it indicates that there is at least one RSU 210 nearby. For example, the P-UE 115 may monitor all V2X messages until it is determined that there is an accessible RSU 210.

[0105] In some cases, an announcement (e.g., or other discovery process signaling) may be sent (e.g., on a discovery channel) for the V2X device. For example, the RSU 210 may send an identifier, status, etc. on the discovery channel, and the P-UE 115 may monitor the identifier on the discovery channel. In some examples, using two resource blocks (e.g., message type 4 and a 32-bit message integrity code), the discovery channel code may have 184 bits.

[0106] Some examples of the discovery process may be initiated by the P-UE 115. Figure 4 An example of a discovery process initiated by the P-UE 115 is described in more detail. For example, the P-UE 115 may broadcast (e.g., announce) its presence instead of the RSU 210 broadcasting a discovery signal. In the announcement, the P-UE 115 may indicate the presence, identifier, speed, direction, planned path, and other information of the P-UE 115, or any combination thereof.

[0107] In some cases, the P-UE 115 may indicate a receive schedule. The P-UE may monitor the radio resources (e.g., power up to monitor the radio resources) as indicated by the receive schedule. The RSU 210 may receive the announcement from the P-UE 115 and determine to serve the P-UE 115. The RSU 210 may contact the P-UE 115 during the indicated resources. For example, the RSU 210 may identify the resources during which the P-UE 115 may turn on and monitor, and the RSU 210 may send a message indicating to serve the P-UE 115 during the identified resources. The P-UE 115 may turn on a power saving mode after receiving the indication from the RSU 210. In some cases, the RSU 210 may also indicate detection or tracking of the P-UE 115. In some examples, the RSU 210 may transmit on behalf of the P-UE 115 so that the P-UE 115 may avoid transmitting when being served by the RSU 210.

[0108] In some cases, multiple RSUs 210 may receive announcements from the P-UE 115. In some cases, the RSUs 210 may communicate and determine which of the multiple RSUs 210 is to serve the P-UE 115. In some other examples, multiple RSUs 210 may send an indication to the P-UE 115, and the P-UE 115 may select an RSU 210 from the multiple RSUs 210. The P-UE 115 may then receive a message from the selected RSU 210 indicating the bundled or aggregated information.

[0109] The P-UE 115 and the RSU 210 may negotiate the operation of the P-UE 115. For example, there may be at least three different modes of operation. In a first example, the P-UE 115 may broadcast a V2X message (e.g., including position, speed, and direction). The RSU 210 may process the message and other V2X messages, camera input, sensor input, etc. If the P-UE 115 may be affected by the V-UE 205 or other environmental factors, the RSU 210 may send a warning message to the P-UE 115. In a second example, the P-UE 115 may broadcast a discontinuous reception schedule, and the RSU 210 may aggregate information (e.g., V2X messages, sensor information, camera information, etc.) and send the bundled or aggregated information to the P-UE 115. In a third example, the RSU 210 may broadcast fused sensor information at a fixed schedule, and all P-UEs 115 may receive messages based on the transmission schedule announced to the RSU 210. The fused sensor information may come from one or more sensors (eg, cameras, proximity sensors, etc.) at the RSU 210 or other RSUs 210 .

[0110] For the first and second examples, the RSU 210 may send a warning and bundled or aggregated information via a unicast channel. For the third example, the RSU 210 may send an indication of the bundled or aggregated V2X information via a multicast channel.

[0111] In some cases, for the first and second examples, regardless of the discovery process, the P-UE 115 (or RSU 210) may initiate an interaction to confirm that the RSU 210 can serve or assist the P-UE 115. For example, after the P-UE 115 detects an advertisement from the RSU 210, the P-UE 115 may verify that the RSU 210 will send an indication of the bundled or aggregated message to the P-UE 115. In some cases, the P-UE 115 or the RSU 210 may initiate the verification. Once it is verified that the RSU 210 will send an indication based on the bundled or aggregated V2X information, the P-UE 115 may enter and exit the low power state to receive transmissions from the RSU 210. In some cases, if unicast transmission is used, an authentication process may be used to verify the RSU identity and authorization.

[0112] Figure 3 An example of a process flow 300 for supporting power conservation for pedestrian UEs according to aspects of the present disclosure is shown. In some examples, the process flow 300 may implement aspects of the wireless communication system 100. The process flow 300 may be implemented by the UE 115-b or the RSU 305 or both. The UE 115-b may be as described with reference to Figure 1 The RSU 305 may be an example of a pedestrian UE or UE 115 as described above. Figure 2 RSU 210 as described or as referenced Figure 1 and 2 An example of a UE 115 or base station 105 is described.

[0113] UE 115-b and RSU 305 may perform a discovery process 310 in a V2X wireless communication environment that includes a plurality of UEs 115 in addition to UE 115-b and RSU 305. In some cases, the plurality of UEs 115 may be, for example, V-UEs, such as described in reference to Figure 2 The V-UE 205 is described. The discovery process 310 may be an example of a discovery process initiated by an RSU.

[0114] For example, at 315, the RSU 305 may send an announcement on a discovery channel indicating discovery information for the RSU 305. The UE 115-b may receive the announcement on the discovery channel indicating the discovery information. At 320, the UE 115-b may send a request to the RSU 305 to associate with the RSU 305 based on the received announcement. In some cases, the UE 115-b may verify that the RSU 305 can aggregate V2X messages for the UE 115-b and send V2X information for the UE 115-b in a single transmission before entering a low power state.

[0115] In some cases, the notification from the RSU 305 may include an identifier of the RSU 305, a permanent status (e.g., whether the RSU 305 is a permanent RSU or a temporary RSU), a location identifier, a transmission schedule, transmission capabilities, at least one connection establishment setting, or a combination thereof. In some cases, the UE 115-b may send a request to associate with the RSU 305 based on the at least one connection establishment setting.

[0116] Once the discovery process is performed, in some cases, the UE 115-b may enter a low power state. The UE 115-b may determine a schedule for the UE 115-b to receive bundled or aggregated V2X messages from the RSU 305 based on performing the discovery process. For example, the UE 115-b may enter a low power state and remain in the low power state except for receiving bundled or aggregated V2X messages from the RSU 305. The RSU 305 may determine a schedule for the UE 115-b to receive bundled or aggregated V2X messages based on performing the discovery process. In some cases, the UE 115-b may identify a schedule for receiving bundled or aggregated V2X messages based on a notification from the RSU 305 (e.g., based on an indicated transmission schedule of the RSU 305).

[0117] At 330, the RSU 305 may aggregate the set of V2X messages. The V2X messages may be received from a plurality of other UEs 115 (e.g., from V-UEs) in the V2X wireless communication environment. At 335, the RSU 305 may send a message indicating bundled or aggregated information from the set of V2X messages to the UE 115-b. The UE 115-b may receive from the RSU 305 a message indicating bundled or aggregated information from the set of V2X messages received at the RSU 305 from a plurality of UEs. In some cases, once the UE 115-b has received the V2X message from the RSU 305, the UE 115-b may enter a low power state.

[0118] In some cases, UE 115-b may receive a notification of bundled or aggregated information from RSU 305, where RSU 305 has processed a set of V2X messages to generate the bundled or aggregated information of the notification. In some examples, UE 115-b may not be able to process the V2X message, so RSU 305 may process the V2X message and only send the bundled or aggregated information of the notification. For example, the bundled or aggregated information may not include all information of all V2X messages. In some cases, the bundled or aggregated information may include high priority information from the set of V2X messages.

[0119] In another example, the UE 115-b may receive a message from the RSU 305 that includes an aggregation of a set of V2X messages. For example, the UE 115-b may be capable of processing V2X messages, and the message from the RSU 305 may include each V2X message in the aggregated V2X messages from other V2X devices.

[0120] Figure 4 An example of a process flow 400 is shown to support power conservation for pedestrian UEs in accordance with aspects of the present disclosure. In some examples, the process flow 400 can implement aspects of the wireless communication system 100.

[0121] Process flow 400 may be implemented by UE 115-c or RSU 405 or both. UE 115-c may be as described with reference to Figure 1 An example of a pedestrian UE or UE 115 is described. The RSU 405 may be a reference Figure 2 RSU 210 as described or as referenced Figure 1 An example of UE 115 is described.

[0122] In some cases, at 410, the RSU 405 may identify that there is no UE 115 with the ability to bundle V2X messages from multiple UEs 115 in the V2X wireless communication environment. The RSU 405 may determine, based on the identification, that the RSU 405 performs bundling of V2X messages for multiple UEs 115. For example, there may be no active RSUs in the V2X wireless communication environment, so the RSU 405 may behave as an RSU. For example, the RSU 405 may be an example of a V-UE, a base station 105, a UE 115, or another wireless device that (e.g., temporarily) behaves as an RSU.

[0123] UE 115-c and RSU 405 may perform a discovery process 415 in a V2X wireless communication environment that includes a plurality of UEs other than UE 115-c and RSU 405. In some cases, the plurality of UEs may be, for example, V-UEs, such as described in reference to Figure 2 The V-UE 205 is described. The discovery process 415 may be an example of a discovery process initiated by a pedestrian UE.

[0124] For example, at 420, the UE 115-c may send (e.g., on a discovery channel) a notification indicating a schedule that the UE 115-c will use to receive bundled or aggregated V2X messages. The RSU 405 may receive the notification indicating the schedule and, in response to the received notification, send a signal to the UE 115-c indicating that the RSU 405 will associate with the UE 115-c at 425. The UE 115-c may receive the signal indicating that the RSU 405 will associate with the UE 115-c. In some cases, the notification from the UE 115-c may include an identifier of the UE 115-b, a speed, a direction, a planned path, an indicator of the schedule, or a combination thereof.

[0125] At 430, the UE 115-c may determine, based on performing the discovery process, a schedule for the UE 115-c to use to receive bundled or aggregated V2X messages from the RSU 405. In some cases, the schedule may be based on the schedule indicated in the announcement at 420.

[0126] In some examples, once the discovery process is performed, UE 115-b may enter a low power state. UE 115-c may leave the low power state based on a schedule to receive bundled or aggregated information from RSU 405. In some cases, UE 115-c may verify that RSU 405 can aggregate V2X messages for UE 115-c and send V2X information for UE 115-c in a single transmission before entering the low power state.

[0127] At 435, the RSU 405 may aggregate the set of V2X messages. The V2X messages may be received from a plurality of other UEs 115 (e.g., from V-UEs) in the V2X wireless communication environment. At 440, the RSU 405 may send a message indicating bundled or aggregated information from the set of V2X messages to the UE 115-c according to the determined schedule. The UE 115-c may receive from the RSU 405 a message indicating bundled or aggregated information from the set of V2X messages received at the RSU 405 from a plurality of UEs. In some cases, once the UE 115-c has received the V2X message from the RSU 405, the UE 115-c may enter a low power state.

[0128] In some cases, the UE 115-c may receive a notification of bundled or aggregated information from the RSU 405, where the RSU 405 has processed the set of V2X messages to generate the bundled or aggregated information of the notification. In some examples, the UE 115-c may not be able to process the V2X message, so the RSU 405 may process the V2X message and only send the bundled or aggregated information of the notification. For example, the bundled or aggregated information may not include all information of all V2X messages. In some cases, the bundled or aggregated information may include high priority information from the set of V2X messages.

[0129] In another example, the UE 115-c may receive a message from the RSU 405 that includes an aggregation of a set of V2X messages. For example, the UE 115-c may be capable of processing V2X messages, and the message from the RSU 405 may include each V2X message in the aggregated V2X messages from other V2X devices.

[0130] Figure 5 A block diagram 500 of a device 505 supporting power conservation for pedestrian UEs according to aspects of the present disclosure is shown. The device 505 may be an example of aspects of the UE 115 as described herein. The device 505 may include a receiver 510, a communication manager 515, and a transmitter 520. The device 505 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0131] The receiver 510 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to power saving for pedestrian UEs, etc.). The information may be communicated to other components of the device 505. The receiver 510 may be a reference Figure 8 Examples of various aspects of the transceiver 820 are described. The receiver 510 may utilize a single antenna or a group of antennas.

[0132] The communication manager 515 may perform the following operations: perform a discovery process with a second UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE; determine a schedule for the first UE to receive a bundled or aggregated vehicle-to-everything message from the second UE based on the performance of the discovery process; and receive a message from the second UE based on the determined schedule, the message indicating the bundled or aggregated information from the vehicle-to-everything message set received from the UE set at the second UE. The communication manager 515 may also perform the following operations: perform a discovery process with a first UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE; determine a schedule for the first UE to receive a bundled or aggregated vehicle-to-everything message based on the performance of the discovery process; receive the vehicle-to-everything message set from the UE set; and send a message indicating the bundled or aggregated information from the vehicle-to-everything message set to the second UE according to the determined schedule. The communication manager 515 may be an example of aspects of the communication manager 810 described herein.

[0133] The communication manager 515 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 515 or its subcomponents may be performed by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a fully programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0134] The communication manager 515 or its subcomponents can be physically located at various locations, including being distributed so that parts of the functions are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 515 or its subcomponents can be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 515 or its subcomponents can be combined with one or more other hardware components (including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in the present disclosure, or combinations thereof).

[0135] The transmitter 520 can transmit signals generated by other components of the device 505. In some examples, the transmitter 520 can be co-located with the receiver 510 in a transceiver module. For example, the transmitter 520 can be a reference Figure 8 Examples of aspects of the transceiver 820 are described. The transmitter 520 may utilize a single antenna or a group of antennas.

[0136] Figure 6 A block diagram 600 of a device 605 supporting power conservation for pedestrian UEs according to aspects of the present disclosure is shown. The device 605 may be an example of aspects of the device 505 or UE 115 as described herein. The device 605 may include a receiver 610, a communication manager 615, and a transmitter 645. The device 605 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0137] The receiver 610 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to power saving for pedestrian UEs, etc.). The information may be communicated to other components of the device 605. The receiver 610 may be a reference Figure 8 Examples of various aspects of the transceiver 820 are described. The receiver 610 may utilize a single antenna or a group of antennas.

[0138] The communication manager 615 can be an example of aspects of the communication manager 515 as described herein. The communication manager 615 can include a discovery process component 620, a bundle scheduling component 625, a bundle information receiving component 630, a message bundling component 635, and a bundle information sending component 640. The communication manager 615 can be an example of aspects of the communication manager 810 described herein.

[0139] The discovery process component 620 can perform a discovery process with a second UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE. The bundled scheduling component 625 can determine a schedule for the first UE to receive bundled or aggregated vehicle-to-everything messages from the second UE based on performing the discovery process. The bundled information receiving component 630 can receive a message from the second UE based on the determined schedule, the message indicating bundled or aggregated information from the set of vehicle-to-everything messages received from the set of UEs at the second UE.

[0140] The discovery process component 620 can perform a discovery process with a first UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE. The bundling scheduling component 625 can determine a schedule for the first UE to receive bundled or aggregated vehicle-to-everything messages based on performing the discovery process. The message bundling component 635 can receive a vehicle-to-everything message set from the UE set. The bundled information sending component 640 can send a message indicating bundled or aggregated information from the vehicle-to-everything message set to the second UE according to the determined schedule.

[0141] The actions performed by the UE communication manager 615 as described herein may be implemented to achieve one or more potential advantages. An implementation may allow the UE 115 to save power and increase battery life by reducing the amount of time the UE 115 spends receiving messages. For example, the UE 115 may instead receive a single transmission from another UE 115 (e.g., an RSU) instead of receiving multiple transmissions from multiple receivers (e.g., multiple V-UEs). Additionally or alternatively, the UE 115 may further reduce the power spent on packet processing. For example, the RSU may reduce the number of messages to be processed by the UE 115, which may further increase power savings at the UE 115.

[0142] The transmitter 645 can transmit signals generated by other components of the device 605. In some examples, the transmitter 645 can be co-located with the receiver 610 in a transceiver module. For example, the transmitter 645 can be a reference Figure 8 Examples of various aspects of the transceiver 820 are described. The transmitter 645 may utilize a single antenna or a group of antennas.

[0143] Figure 7 A block diagram 700 of a communication manager 705 supporting power conservation for pedestrian UEs in accordance with aspects of the present disclosure is shown. The communication manager 705 may be an example of aspects of the communication manager 515, the communication manager 615, or the communication manager 810 described herein. The communication manager 705 may include a discovery process component 710, a bundling scheduling component 715, a bundling information receiving component 720, a pedestrian discovery announcement receiving component 725, a pedestrian discovery announcement component 730, a mode conversion component 735, a message bundling component 740, a bundling information sending component 745, and a bundling device determination component 750. Each of these modules may communicate with each other directly or indirectly (e.g., via one or more buses).

[0144] The discovery process component 710 may perform a discovery process with a second UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE. In some examples, the discovery process component 710 may perform a discovery process with a first UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE.

[0145] In some examples, the discovery process component 710 can determine a set of UEs that can bundle the vehicle-to-everything message from the first UE. In some examples, the discovery process component 710 can select a second UE from the set of UEs.

[0146] The bundled scheduling component 715 can determine a schedule for the first UE to receive a bundled or aggregated vehicle-to-everything message from the second UE based on performing a discovery process. In some examples, the bundled scheduling component 715 can determine a schedule for the first UE to receive a bundled or aggregated vehicle-to-everything message based on performing a discovery process.

[0147] In some examples, the bundled scheduling component 715 can broadcast a discontinuous reception schedule for the first UE, wherein the message indicating the bundled or aggregated information is received during a wake-up period of the discontinuous reception schedule in response to the broadcasted discontinuous reception schedule. In some examples, the bundled scheduling component 715 can receive an indication of the schedule from the second UE. In some examples, the bundled scheduling component 715 can send an indication of the schedule to the second UE.

[0148] The bundled information receiving component 720 can receive a message from a second UE based on the determined schedule, the message indicating bundled or aggregated information from a vehicle-to-everything message set received from a set of UEs at the second UE. In some examples, the bundled information receiving component 720 can receive a notification of the bundled or aggregated information from the second UE, where the second UE has processed the vehicle-to-everything message set to generate the notified bundled or aggregated information. In some examples, the bundled information receiving component 720 can receive a message from the second UE that includes an aggregation of the vehicle-to-everything message set. In some cases, the message indicating the bundled or aggregated information is unicast or multicast.

[0149] The message bundling component 740 can receive a vehicle-to-everything message set from a set of UEs. In some examples, the vehicle-to-everything message set is processed to generate bundled or aggregated information for a notification, wherein sending a message includes: indicating bundled or aggregated information from the vehicle-to-everything message set. In some examples, the message bundling component 740 can use at least one sensor of a second UE to determine environmental information for the second UE, and the information sent indicates the bundled or aggregated information from the vehicle-to-everything message set and the environmental information. In some cases, the second UE is included at or co-located with the base station 105.

[0150] The bundled information sending component 745 can send a message indicating bundled or aggregated information from the vehicle-to-everything message set to the second UE according to the determined schedule. In some examples, the bundled information sending component 745 can aggregate the vehicle-to-everything message set. In some examples, the bundled information sending component 745 can send a message to the first UE, the message including an aggregation of the vehicle-to-everything message set. In some cases, the message indicating the bundled or aggregated information is unicast or multicast.

[0151] The pedestrian discovery announcement receiving component 725 can receive an announcement indicating discovery information for the second UE on the discovery channel. In some examples, the pedestrian discovery announcement receiving component 725 can send a request to the second UE to associate with the second UE based on the received announcement. In some examples, the pedestrian discovery announcement receiving component 725 can enter a second mode from the first mode based on the scheduling having been determined, the second mode being associated with lower power than the first mode.

[0152] In some examples, the pedestrian discovery notification receiving component 725 can monitor a discovery channel based on resources dedicated to discovering UEs capable of bundling vehicle-to-everything messages, and the notification is received based on the monitoring. In some examples, the pedestrian discovery notification receiving component 725 can send a notification indicating discovery information for a second UE on the discovery channel. In some examples, the pedestrian discovery notification receiving component 725 can receive a request to associate with a second UE from a first UE at least in part in response to the sent notification. In some cases, the notification includes an identifier for the second UE, a permanent state, a location identifier, a transmission schedule, a transmission capability, at least one connection establishment setting, or a combination thereof.

[0153] The pedestrian discovery notification component 730 may send a notification indicating that the first UE will be used to receive a schedule of bundled or aggregated vehicle-to-everything messages. In some examples, the pedestrian discovery notification component 730 may receive a signal from a second UE indicating that the second UE will be associated with the first UE, at least in part in response to the sent notification. In some examples, the pedestrian discovery notification component 730 may receive a notification indicating that the first UE will be used to receive a schedule of bundled or aggregated vehicle-to-everything messages. In some examples, the pedestrian discovery notification component 730 may send a signal to the second UE indicating that the second UE will be associated with the first UE, in response to the received notification. In some cases, the notification includes an identifier, speed, direction, planned path, scheduled indicator, or a combination thereof for the first UE.

[0154] The mode transition component 735 can receive a vehicle-to-everything message from at least one UE in the set of UEs when operating according to the first mode.

[0155] In some examples, the mode switching component 735 can enter a second mode based on performing a discovery process, the second mode being associated with lower power than the first mode. In some examples, the mode switching component 735 can identify a resource set for discovering UEs capable of bundling vehicle-to-everything messages, the resource set comprising at least a transmission period. In some examples, the mode switching component 735 can enter a second mode from a first mode based on a transmission period to monitor a discovery signal of the discovery process on the resource set.

[0156] The bundling device determining component 750 can identify that there is no UE with the ability to bundle vehicle-to-everything messages from the set of UEs. In some examples, the bundling device determining component 750 can determine, based on the identification, that a second UE performs bundling of vehicle-to-everything messages for the set of UEs.

[0157] Figure 8 A schematic diagram of a system 800 including a device 805 supporting power conservation for pedestrian UEs according to aspects of the present disclosure is shown. The device 805 may be an example of a device 505, a device 605, or a UE 115 as described herein or include a component of the device 505, a device 605, or a UE 115. The device 805 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 810, an I / O controller 815, a transceiver 820, an antenna 825, a memory 830, and a processor 840. These components may communicate electronically via one or more buses (e.g., a bus 845).

[0158] The communication manager 810 may perform the following operations: perform a discovery process with a second UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE; determine a schedule for the first UE to receive bundled or aggregated vehicle-to-everything messages from the second UE based on the performance of the discovery process; and receive a message from the second UE based on the determined schedule, the message indicating bundled or aggregated information from the set of vehicle-to-everything messages received from the set of UEs at the second UE. The communication manager 810 may also perform the following operations: perform a discovery process with a first UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE; determine a schedule for the first UE to receive bundled or aggregated vehicle-to-everything messages based on the performance of the discovery process; receive the set of vehicle-to-everything messages from the set of UEs; and send a message indicating bundled or aggregated information from the set of vehicle-to-everything messages to the second UE according to the determined schedule.

[0159] I / O controller 815 can manage input and output signals for device 805. I / O controller 815 can also manage peripheral devices that are not integrated into device 805. In some cases, I / O controller 815 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 815 can utilize a computer such as a , or another known operating system. In other cases, I / O controller 815 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 815 may be implemented as part of a processor. In some cases, a user may interact with device 805 via I / O controller 815 or via hardware components controlled by I / O controller 815.

[0160] The transceiver 820 may communicate bidirectionally via one or more antennas, wired or wireless links as described above. For example, the transceiver 820 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 820 may also include a modem for modulating packets and providing the modulated packets to an antenna for transmission, and demodulating packets received from an antenna.

[0161] In some cases, a wireless device may include a single antenna 825. However, in some cases, the device may have more than one antenna 825, which may be capable of sending or receiving multiple wireless transmissions simultaneously.

[0162] The memory 830 may include random access memory (RAM) and read-only memory (ROM). The memory 830 may store computer-readable, computer-executable code 835, which includes instructions that, when executed, cause the processor to perform various functions described herein. In some cases, the memory 830 may also contain, among other things, a basic input / output system (BIOS), which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0163] The processor 840 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 840 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 840. The processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 830) to cause the device 805 to perform various functions (e.g., functions or tasks that support power saving for pedestrian UEs).

[0164] The code 835 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 835 may be stored in a non-transitory computer-readable medium such as a system memory or other type of memory. In some cases, the code 835 may not be directly executable by the processor 840, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0165] Based on remaining in the power saving mode, the processor of the UE 115 (e.g., controlling the receiver 610, the transmitter 645 or as described in reference Figure 8 The transceiver 820 described herein can efficiently manage power control of components of the UE 115. For example, when the UE 115 is not receiving a message indicating a bundled or aggregated transmission at another UE 115, the UE 115 can remain in a low power state. In this low power state, components such as the receiver 610, the transmitter 645, and the transceiver 820 can be powered off or in a low power mode. When the UE 115 is to receive a message according to the schedule, the processor of the UE 115 can turn on one or more processing units to receive a message indicating a bundled or aggregated V2X message, enable a message processing component, or a similar mechanism within the UE 115.

[0166] Fig. 9 A flow chart illustrating a method 900 for supporting power saving for pedestrian UEs according to aspects of the present disclosure is shown. The operations of the method 900 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 900 may be implemented by a UE 115 or a component thereof as described with reference to FIG. Figures 5 to 8 In some examples, the UE may execute an instruction set to control the functional units of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0167] At 905, the UE may perform a discovery process with a second UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE. The operations of 905 may be performed according to the methods described herein. In some examples, aspects of the operations of 905 may be performed as described with reference to Figures 5 to 8 Describes the discovery process components to perform.

[0168] At 910, the UE may determine a schedule for the first UE to receive a bundled or aggregated vehicle-to-everything message from the second UE based on performing a discovery process. The operations of 910 may be performed according to the methods described herein. In some examples, aspects of the operations of 910 may be performed as described with reference to Figures 5 to 8 Describes the bundled scheduling components to execute.

[0169] At 915, the UE may receive a message from a second UE based on the determined schedule, the message indicating bundled or aggregated information from the set of vehicle-to-everything messages received from the set of UEs at the second UE. The operations of 915 may be performed according to the methods described herein. In some examples, aspects of the operations of 915 may be performed as described with reference to Figures 5 to 8 The described bundling or aggregation of information is performed by a receiving component.

[0170] Fig.10 A flow chart illustrating a method 1000 for supporting power saving for pedestrian UEs according to aspects of the present disclosure is shown. The operations of the method 1000 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1000 may be implemented by a UE 115 or a component thereof as described with reference to Figures 5 to 8 In some examples, the UE may execute an instruction set to control the functional units of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0171] At 1005, the UE may perform a discovery process with a second UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE. The operations of 1005 may be performed according to the methods described herein. In some examples, aspects of the operations of 1005 may be performed as described with reference to Figures 5 to 8 Describes the discovery process components to perform.

[0172] At 1010, the UE may determine a schedule for the first UE to receive a bundled or aggregated vehicle-to-everything message from the second UE based on performing a discovery process. The operations of 1010 may be performed according to the methods described herein. In some examples, aspects of the operations of 1010 may be performed as described with reference to Figures 5 to 8 Describes the bundled scheduling components to execute.

[0173] At 1015, the UE may receive a notification from a second UE of bundled or aggregated information from a set of vehicle-to-everything messages received at the second UE from a set of UEs, wherein the second UE has processed the set of vehicle-to-everything messages to generate the bundled or aggregated information for the notification. The operations of 1015 may be performed according to the methods described herein. In some examples, aspects of the operations of 1015 may be performed as described with reference to Figures 5 to 8 The described bundling or aggregation of information is performed by a receiving component.

[0174] Fig.11A flow chart illustrating a method 1100 for supporting power saving for pedestrian UEs according to aspects of the present disclosure is shown. The operations of the method 1100 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1100 may be implemented by a UE 115 or a component thereof as described herein. Figures 5 to 8 In some examples, the UE may execute an instruction set to control the functional units of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0175] At 1105, the UE may perform a discovery process with a second UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE. The operations of 1105 may be performed according to the methods described herein. In some examples, aspects of the operations of 1105 may be performed as described with reference to Figures 5 to 8 Describes the discovery process components to perform.

[0176] At 1110, the UE may determine a schedule for the first UE to receive a bundled or aggregated vehicle-to-everything message from the second UE based on performing a discovery process. The operations of 1110 may be performed according to the methods described herein. In some examples, aspects of the operations of 1110 may be performed as described with reference to Figures 5 to 8 Describes the bundled scheduling components to execute.

[0177] At 1115, the UE may receive a message from a second UE based on the determined schedule, the message indicating bundled or aggregated information from a set of vehicle-to-everything messages received from a set of UEs at the second UE, the message including an aggregation of the set of vehicle-to-everything messages. The operations of 1115 may be performed according to the methods described herein. In some examples, aspects of the operations of 1115 may be performed as described with reference to Figures 5 to 8 The described bundling or aggregation of information is performed by a receiving component.

[0178] Fig.12 A flow chart illustrating a method 1200 for supporting power saving for pedestrian UEs according to aspects of the present disclosure is shown. The operations of the method 1200 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1200 may be implemented by a UE 115 or a component thereof as described herein. Figures 5 to 8 In some examples, the UE may execute an instruction set to control the functional units of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0179] At 1205, the UE may perform a discovery process with the first UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE. The operations of 1205 may be performed according to the methods described herein. In some examples, aspects of the operations of 1205 may be performed as described with reference to Figures 5 to 8 Describes the discovery process components to perform.

[0180] At 1210, the UE may determine a schedule for the first UE to receive bundled or aggregated vehicle-to-everything messages based on performing a discovery process. The operations of 1210 may be performed according to the methods described herein. In some examples, aspects of the operations of 1210 may be performed as described with reference to Figures 5 to 8 Describes the bundled scheduling components to execute.

[0181] At 1215, the UE may receive a set of vehicle-to-everything messages from the set of UEs. The operations of 1215 may be performed according to the methods described herein. In some examples, aspects of the operations of 1215 may be performed as described with reference to Figures 5 to 8 Describes the message bundle component to execute.

[0182] At 1220, the UE may send a message indicating bundled or aggregated information from the vehicle-to-everything message set to a second UE according to the determined schedule. The operations of 1220 may be performed according to the methods described herein. In some examples, aspects of the operations of 1220 may be performed as described with reference to Figures 5 to 8 The described bundling or aggregation information sending components are performed.

[0183] Fig.13 A flow chart illustrating a method 1300 for supporting power saving for pedestrian UEs according to aspects of the present disclosure is shown. The operations of the method 1300 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1300 may be implemented by a UE 115 or a component thereof as described with reference to FIG. Figures 5 to 8 In some cases, the UE 115 or its components as described herein may be included at the base station 105 or co-located with the base station 105. In some examples, the UE may execute an instruction set to control the functional units of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0184] At 1305, the UE may perform a discovery process with the first UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a set of UEs other than the first UE and the second UE. The operations of 1305 may be performed according to the methods described herein. In some examples, aspects of the operations of 1305 may be performed as described with reference to Figures 5 to 8Describes the discovery process components to perform.

[0185] At 1310, the UE may determine a schedule for the first UE to receive bundled or aggregated vehicle-to-everything messages based on performing a discovery process. The operations of 1310 may be performed according to the methods described herein. In some examples, aspects of the operations of 1310 may be performed as described with reference to Figures 5 to 8 Describes the bundled scheduling components to execute.

[0186] At 1315, the UE may receive a set of vehicle-to-everything messages from the set of UEs. The operations of 1315 may be performed according to the methods described herein. In some examples, aspects of the operations of 1315 may be performed as described with reference to Figures 5 to 8 Describes the message bundle component to execute.

[0187] At 1320, the UE may send a message indicating bundled or aggregated information from the vehicle-to-everything message set to a second UE according to the determined schedule. The operations of 1320 may be performed according to the methods described herein. In some examples, aspects of the operations of 1320 may be performed as described with reference to Figures 5 to 8 The described bundling or aggregation information sending components are performed.

[0188] At 1325, the UE may aggregate the vehicle-to-everything message set. The operations of 1325 may be performed according to the methods described herein. In some examples, aspects of the operations of 1325 may be performed as described with reference to Figures 5 to 8 The described bundling or aggregation information sending components are performed.

[0189] At 1330, the UE may send a message including an aggregate of the vehicle-to-everything message set to the first UE. The operations of 1330 may be performed according to the methods described herein. In some examples, aspects of the operations of 1330 may be performed as described with reference to Figures 5 to 8 The described bundling or aggregation information sending components are performed.

[0190] It should be noted that the methods described herein describe possible implementations, and that the operations and steps may be rearranged or otherwise modified, and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0191] The technology described herein can be used in various wireless communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA) and other systems. CDMA systems can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions can be generally referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is generally referred to as CDMA2000 1xEV-DO, High Speed ​​Packet Data (HRPD), etc. UTRA includes broadband CDMA (W-CDMA) and other variants of CDMA. TDMA systems can implement radio technologies such as Global System for Mobile Communications (GSM).

[0192] OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS). LTE, LTE-A, and LTE-A Professional are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, LTE-A Professional, NR, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The technology described herein can be used for the systems and radio technologies mentioned herein as well as other systems and radio technologies. Although aspects of LTE, LTE-A, LTE-A Professional, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Professional, or NR terminology may be used in much of the description, the techniques described herein may be applicable beyond LTE, LTE-A, LTE-A Professional, or NR applications.

[0193] A macro cell typically covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE with a service subscription to a network provider. Compared to a macro cell, a small cell may be associated with a lower power base station, and the small cell may operate in the same or different frequency band as the macro cell (e.g., licensed, unlicensed, etc.). According to various examples, a small cell may include a pico cell, a femto cell, and a micro cell. For example, a pico cell may cover a small geographic area and may allow unrestricted access by a UE with a service subscription to a network provider. A femto cell may also cover a small geographic area (e.g., a residence) and may provide restricted access by a UE associated with the femto cell (e.g., a UE in a closed subscriber group (CSG), a UE for a user in a residence, etc.). An eNB for a macro cell may be referred to as a macro eNB. An eNB for a small cell may be referred to as a small cell eNB, a pico eNB, a femto eNB, or a home eNB. An eNB may support one or more (e.g., two, three, four, etc.) cells and may also support communications using one or more component carriers.

[0194] The wireless communication systems described herein may support synchronous or asynchronous operation. For synchronous operation, the base stations may have similar frame timing, and transmissions from different base stations may be approximately aligned in time. For asynchronous operation, the base stations may have different frame timing, and transmissions from different base stations may not be aligned in time. The techniques described herein may be used for synchronous or asynchronous operation.

[0195] The information and signals described herein may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0196] The various illustrative blocks and modules described in conjunction with the disclosure herein may be implemented or executed using a general purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration).

[0197] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or sent through a computer-readable medium as one or more instructions or codes. Other examples and implementations are within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented in software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these items. Features that implement the functions may also be physically located at various locations, including being distributed so that parts of the functions are implemented at different physical locations.

[0198] Computer readable medium includes both non-transitory computer storage medium and communication medium, and communication medium includes any medium that promotes the transmission of computer program from one place to another place.Non-transitory storage medium can be any available medium that can be accessed by general-purpose computer or special-purpose computer.By way of example and not limitation, non-transitory computer readable medium can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, disk storage or other magnetic storage device, or can be used for carrying or storing desired program code unit and can be accessed by general-purpose or special-purpose computer or general-purpose or special-purpose processor in the form of instruction or data structure.In addition, any connection is appropriately referred to as computer readable medium.For example, if software is to send from website, server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are included in the definition of medium. As used herein, disk and disc include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, wherein disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0199] As used herein (including in the claims), "or" as used in a list of items (e.g., a list of items ending with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, for example, a list of at least one of A, B, or C means A, or B, or C, or AB, or AC, or BC, or ABC (i.e., A and B and C). In addition, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, an exemplary step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0200] In the accompanying drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number, the second reference number being used to distinguish between similar components. If only the first reference number is used in the specification, the description applies to any of the similar components having the same first reference number, without regard to the second reference number or other subsequent reference numbers.

[0201] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that may be implemented or within the scope of the claims. The term "exemplary" as used herein means "serving as an example, instance, or illustration," rather than "preferred" or "having advantages over other examples." For the purpose of providing an understanding of the described techniques, the detailed description includes specific details. However, these techniques may be implemented without these specific details. In some instances, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0202] To enable those skilled in the art to implement or use the present disclosure, the description herein is provided. It will be apparent to those skilled in the art that various modifications to the present disclosure will be apparent, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but is given the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a first user equipment (UE), comprising: performing a discovery process with a second UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a plurality of UEs other than the first UE and the second UE; determining, based at least in part on performing the discovery process, a schedule for the first UE to receive an aggregated vehicle-to-everything message from the second UE, the schedule being a time schedule, and the aggregated vehicle-to-everything message being based at least in part on a plurality of vehicle-to-everything messages received at the second UE from the plurality of UEs; as well as At least one or more messages related to the aggregated vehicle-to-everything message are received from the second UE based at least in part on the determined schedule.

2. The method according to claim 1, wherein: Receiving at least the one or more messages comprises: Receiving a notification of the aggregated vehicle-to-everything message from the second UE, wherein the second UE has processed the plurality of vehicle-to-everything messages to generate the aggregated vehicle-to-everything message.

3. The method according to claim 1, wherein: Receiving at least the one or more messages comprises: An aggregation of the plurality of vehicle-to-everything messages is received.

4. The method according to claim 1, wherein: Performing the discovery process with the second UE includes: receiving a notification on a discovery channel indicating discovery information for the second UE; and A request is sent to the second UE to associate with the second UE based at least in part on the received notification.

5. The method according to claim 4, further comprising: A second mode is entered from the first mode based at least in part on having determined the schedule, the second mode being associated with lower power than the first mode.

6. The method according to claim 4, further comprising: The discovery channel is monitored according to resources dedicated to discovering UEs capable of bundling vehicle-to-everything messages, and the announcement is received based at least in part on the monitoring.

7. The method according to claim 4, wherein: The notification includes an identifier, a permanent state, a location identifier, a transmission schedule, a transmission capability, at least one connection establishment setting, or a combination thereof for the second UE.

8. The method according to claim 1, wherein: Performing the discovery process with the second UE includes: sending a notification indicating the schedule that the first UE is to use to receive aggregated vehicle-to-everything messages; and A signal is received from the second UE indicating that the second UE is to associate with the first UE, at least in part in response to the transmitted announcement.

9. The method according to claim 8, wherein: The notification includes an identifier, a speed, a direction, a planned path, an indicator of the schedule, or a combination thereof for the first UE.

10. The method according to claim 1, further comprising: when operating according to the first mode, receiving a vehicle-to-everything message from at least one UE of the plurality of UEs; as well as A second mode is entered based at least in part on performing the discovery process, the second mode being associated with lower power than the first mode.

11. The method according to claim 1, wherein: Performing the discovery process with the second UE also includes: Determining a set of UEs capable of bundling the vehicle-to-everything message from the first UE; and The second UE is selected from the UE set.

12. The method according to claim 1, wherein: Executing the discovery process also includes: identifying a set of resources for discovering UEs capable of bundling vehicle-to-everything messages, the set of resources comprising at least a transmission period; and Entering the second mode from the first mode according to the transmission period to monitor the discovery signal of the discovery process on the resource set.

13. The method according to claim 1, further comprising: A discontinuous reception schedule for the first UE is broadcasted, wherein at least the one or more messages are received during a wake-up period of the discontinuous reception schedule in response to the broadcasted discontinuous reception schedule.

14. The method according to claim 1, wherein: Determining the schedule includes: An indication of the scheduling is received from the second UE.

15. The method according to claim 1, wherein: At least the one or more messages include a message indicating aggregate information corresponding to the plurality of vehicle-to-everything messages, wherein at least the one or more messages are unicast or multicast.

16. A method for wireless communication at a second user equipment (UE) with a first UE, comprising: performing a discovery process with the first UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a plurality of UEs other than the first UE and the second UE; determining, based at least in part on performing the discovery process, a schedule for the first UE to receive an aggregated vehicle-to-everything message, the schedule being a time schedule, and the aggregated vehicle-to-everything message being based at least in part on a plurality of vehicle-to-everything messages received at the second UE from the plurality of UEs; receiving a plurality of vehicle-to-everything messages from the plurality of UEs; as well as At least one or more messages related to the aggregated vehicle-to-everything message are sent to the first UE according to the determined schedule.

17. The method according to claim 16, further comprising: processing the plurality of vehicle-to-everything messages to generate the aggregated vehicle-to-everything message; as well as Send a notification of the aggregated vehicle-to-everything message to the first UE.

18. The method according to claim 16, further comprising: Aggregating the plurality of vehicle-to-everything messages; as well as Sending a message including the aggregation of the plurality of vehicle-to-everything messages to the first UE.

19. The method according to claim 16, wherein: Performing the discovery process with the first UE includes: sending a notification on a discovery channel indicating discovery information for the second UE; and A request is received from the first UE to associate with the second UE in response, at least in part, to the sent notification.

20. The method according to claim 19, wherein: The notification includes an identifier, a permanent state, a location identifier, a transmission schedule, a transmission capability, at least one connection establishment setting, or a combination thereof for the second UE.

21. The method according to claim 16, wherein: Performing the discovery process with the first UE includes: receiving a notification indicating the schedule that the first UE is to use to receive aggregated vehicle-to-everything messages; and A signal is sent to the second UE in response to the received notification indicating that the second UE is to associate with the first UE.

22. The method according to claim 21, wherein: The notification includes an identifier, a speed, a direction, a planned path, an indicator of the schedule, or a combination thereof for the first UE.

23. The method of claim 16, further comprising: Sending an indication of the scheduling to the first UE.

24. The method according to claim 16, wherein: At least the one or more messages are unicast or multicast.

25. The method of claim 16, further comprising: identifying that there is no UE having the capability to bundle vehicle-to-everything messages from the plurality of UEs; as well as The second UE is determined to perform bundling of vehicle-to-everything messages for the plurality of UEs based at least in part on the identifying.

26. The method of claim 16, further comprising: Environmental information for the second UE is determined using at least one sensor of the second UE, and the transmitted message indicates the aggregated vehicle-to-everything message from the plurality of vehicle-to-everything messages and the environmental information.

27. The method of claim 16, wherein: The second UE is included at a base station.

28. An apparatus for wireless communication at a first user equipment (UE), comprising: a unit for performing a discovery process with a second UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a plurality of UEs other than the first UE and the second UE; means for determining, based at least in part on performing the discovery process, a schedule for the first UE to use to receive an aggregated vehicle-to-everything message from the second UE, the schedule being a time schedule, and the aggregated vehicle-to-everything message being based at least in part on a plurality of vehicle-to-everything messages received at the second UE from the plurality of UEs; as well as Means for receiving, from the second UE, at least one or more messages related to the aggregated vehicle-to-everything message based at least in part on the determined schedule.

29. The device according to claim 28, wherein The means for receiving at least the one or more messages further comprises: Means for receiving a notification of the aggregated vehicle-to-everything message from the second UE, wherein the second UE has processed the plurality of vehicle-to-everything messages to generate the aggregated vehicle-to-everything message.

30. An apparatus for wireless communication at a second user equipment (UE) with a first UE, comprising: a unit for performing a discovery process with the first UE in a vehicle-to-everything wireless communication environment, the vehicle-to-everything wireless communication environment including a plurality of UEs other than the first UE and the second UE; means for determining, based at least in part on performing the discovery process, a schedule for the first UE to receive an aggregated vehicle-to-everything message, the schedule being a time schedule, and the aggregated vehicle-to-everything message being based at least in part on a plurality of vehicle-to-everything messages received at the second UE from the plurality of UEs; means for receiving a plurality of vehicle-to-everything messages from the plurality of UEs; as well as Means for sending at least one or more messages related to the aggregated vehicle-to-everything message to the first UE according to the determined schedule.

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