CN116636301A - Side link communication for differently configured user equipment - Google Patents

Abstract

Various aspects of the present disclosure relate generally to wireless communications. In some aspects, a first User Equipment (UE) may identify a set of resources for communicating with a second UE, wherein the set of resources includes a subset of resources that overlap with a Discontinuous Reception (DRX) mode on-duration of the second UE. The first UE may communicate with the second UE using one or more resources of the set of resources. Numerous other aspects are described.

Description

Side link communication for differently configured user equipment

Cross Reference to Related Applications

This patent application claims priority from U.S. provisional patent application No.63/123,870 entitled "SIDELINK COMMUNICATIONS FOR DIFFERENTLY-CONFIGURED USER EQUIPMENT (for side link communication of differently configured user equipment)" filed on month 12 of 2020, and U.S. non-provisional patent application No.17/457,780 entitled "SIDELINK COMMUNICATIONS FOR DIFFERENTLY-CONFIGURED USER EQUIPMENT (for side link communication of differently configured user equipment)" filed on month 12 of 2021, which are hereby expressly incorporated herein by reference.

Introduction to the invention

Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for side-link communications for differently configured User Equipment (UEs).

Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcast, or other similar types of services. These wireless communication systems may employ multiple-access techniques capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, or other resources) with the users. The multiple access technique may rely on any of code division, time division, frequency division, orthogonal frequency division, single carrier frequency division, or time division synchronous code division, to name a few examples. These and other multiple access techniques have been adopted in various telecommunications standards to provide a common protocol that enables different wireless devices to communicate at the urban, national, regional, and even global levels.

Despite the tremendous technological advances made over the years in wireless communication systems, challenges remain. For example, complex and dynamic environments may still attenuate or block signals between the wireless transmitter and the wireless receiver, disrupting the various wireless channel measurement and reporting mechanisms established for managing and optimizing the use of limited wireless channel resources. Accordingly, there is a need for further improvements in wireless communication systems to overcome various challenges.

Disclosure of Invention

An aspect provides a wireless communication method performed by a first User Equipment (UE), comprising: identifying a set of resources for communicating with the second UE, wherein the set of resources includes a subset of resources that overlap with a Discontinuous Reception (DRX) mode on duration of the second UE; and communicate with the second UE using one or more resources of the set of resources.

Other aspects provide an apparatus operable, configured, or otherwise adapted to perform the foregoing methods, as well as those described elsewhere herein; a non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of an apparatus, cause the apparatus to perform the aforementioned methods and those methods described elsewhere herein; a computer program product embodied on a computer-readable storage medium comprising code for performing the foregoing methods and those described elsewhere herein; and an apparatus comprising means for performing the foregoing methods, as well as those methods described elsewhere herein. By way of example, an apparatus may comprise a processing system, a device with a processing system, or a processing system cooperating over one or more networks.

For purposes of illustration, the following description and the annexed drawings set forth certain features.

Brief Description of Drawings

The drawings depict certain features of the aspects described herein and are not intended to limit the scope of the disclosure.

Fig. 1 is a block diagram conceptually illustrating an example wireless communication network.

Fig. 2 is a block diagram conceptually illustrating aspects of an example of a base station and a User Equipment (UE).

Fig. 3A-3D depict various example aspects of a data structure for a wireless communication network.

Fig. 4 is a diagram illustrating an example of side link communication according to the present disclosure.

Fig. 5 is a diagram illustrating an example of side link communication and access link communication according to the present disclosure.

Fig. 6 is a diagram illustrating an example of a Discontinuous Reception (DRX) configuration according to the present disclosure.

Fig. 7 is a diagram illustrating an example associated with side link communication for differently configured UEs in accordance with the present disclosure.

Fig. 8 is a diagram illustrating an example process associated with side-link communication for differently configured UEs in accordance with the present disclosure.

Fig. 9 is a block diagram of an example apparatus for wireless communication according to the present disclosure.

Fig. 10 is a block diagram of an example communication device according to the present disclosure.

Detailed Description

Aspects of the present disclosure provide apparatuses (devices), methods, processing systems, and computer-readable media for side link communication for differently configured User Equipment (UEs).

In some communication systems, differently configured UEs may be deployed in the same area. For example, in a vehicle networking (V2X) communication system, some UEs may be configured as third generation partnership project (3 GPP) release 16 (Rel-16) UEs and other UEs may be configured as 3GPP release 17 (Rel-17) UEs. Additionally or alternatively, some UEs may be configured according to an earlier 3GPP release (e.g., earlier than release 16) and/or according to a later 3GPP release (e.g., later than release 17). Different features may be introduced periodically in different versions. For example, side link Discontinuous Reception (DRX) was introduced in release 17. Thus, release 16 UEs may not be configured to be compatible with side link DRX because side link DRX is not included in release 16.

When communicating on the side link, release 16 UEs may select resources according to a resource selection procedure. In some cases, release 16 UEs may select the resources on which release 17 UEs will monitor according to the side link DRX mode. In this case, release 16UE may successfully communicate with release 17UE using side link DRX. However, if the release 16UE selects resources that the release 17UE will not monitor on according to the side link DRX mode, the release 16UE may not be able to communicate with the release 17 UE. Thus, communications between differently configured UEs (such as release 16 UEs and release 17 UEs) may be unreliable and suffer from failure.

Some aspects described herein enable configuration of a dedicated resource pool that enables a first UE to communicate with a second UE. For example, release 16 UEs may be configured with a resource pool aligned with the side link DRX on duration (even though the release 16UE is not configured with side link DRX capabilities). Similarly, release 17 UEs may be configured such that the resource pool of release 17 UEs overlaps with the dedicated resource pool of release 16 UEs. In this case, when release 16UE attempts to communicate with release 17UE using the dedicated resource pool, release 16UE will use resources aligned with the side chain DRX on duration of release 17UE, thereby enabling communication. In this way, aspects described herein improve reliability of communications and reduce the likelihood of communication failure between differently configured UEs.

Wireless communication network introduction

Fig. 1 depicts an example of a wireless communication system 100 in which aspects described herein may be implemented.

In general, the wireless communication system 100 includes a Base Station (BS) 102, a User Equipment (UE) 104, and one or more core networks, such as an Evolved Packet Core (EPC) and 5G core (5 GC) networks, that interoperate to provide wireless communication services.

The base station 102 may provide an access point for the user equipment 104 to the EPC and/or 5GC and may perform one or more of the following functions: user data delivery, radio channel ciphering and ciphering, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection setup and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio Access Network (RAN) sharing, multimedia Broadcast Multicast Services (MBMS), subscriber and equipment tracking, RAN Information Management (RIM), paging, positioning, delivery of alert messages, and other functions. In various contexts, a base station may include and/or be referred to as a "gNB," "node B," "eNB," "ng-eNB" (e.g., an eNB that has been enhanced to provide connectivity to EPC and 5 GC), "access point," "base transceiver station," "radio base station," "radio transceiver," "transceiver function," or "transmission-reception point" ("TRP").

The base station 102 communicates wirelessly with the UE 104 via a communication link 120. Each base station 102 may provide communication coverage for various geographic coverage areas 110 that may overlap in some cases. For example, a small cell 102 '(e.g., a low power base station) may have a coverage area 110' that overlaps with the coverage area 110 of one or more macro cells (e.g., a high power base station).

The communication link 120 between the base station 102 and the UE 104 may include Uplink (UL) (also referred to as "reverse link") transmissions from the user equipment 104 to the base station 102 and/or Downlink (DL) (also referred to as "forward link") transmissions from the base station 102 to the user equipment 104. In aspects, communication link 120 may use multiple-input multiple-output (MIMO) antenna techniques including spatial multiplexing, beamforming, and/or transmit diversity.

Examples of UEs 104 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player, a camera, a game console, a tablet device, a smart device, a wearable device, a vehicle, an electricity meter, an air pump, a large or small kitchen appliance, a healthcare device, an implant, a sensor/actuator, a display, or other similar devices. The UE 104 may be an internet of things (IoT) device (e.g., a parking meter, air pump, oven, vehicle, heart monitor, or other IoT device), a always-on (AON) device, or an edge processing device. The UE 104 may also be more generally referred to as a "station," mobile station, "" subscriber station, "" mobile unit, "" subscriber unit, "" wireless unit, "" remote unit, "" mobile device, "" wireless communication device, "" remote device, "" mobile subscriber station, "" access terminal, "" mobile terminal, "" wireless terminal, "" remote terminal, "" handset, "" user agent, "" mobile client, "or" client.

Communications using higher frequency bands may have higher path loss and shorter range than lower frequency communications. Thus, certain base stations (e.g., base station 180 in fig. 1) may utilize beamforming 182 with UE 104 to improve path loss and range. For example, the base station 180 and the UE 104 may each include multiple antennas, such as antenna elements, antenna panels, and/or antenna arrays, to facilitate beamforming.

In some cases, the base station 180 may transmit the beamformed signals to the UE 104 in one or more transmit directions 182'. The UE 104 may receive the beamformed signals from the base station 180 in one or more receive directions 182 ". The UE 104 may also transmit the beamformed signals to the base station 180 in one or more transmit directions 182 ". The base station 180 may also receive beamformed signals from the UEs 104 in one or more receive directions 182'. The base station 180 and the UE 104 may then perform beam training to determine the best receive direction and transmit direction for each of the base station 180 and the UE 104. It is noted that the transmission direction and the reception direction of the base station 180 may be the same or different. Similarly, the transmit direction and the receive direction of the UE 104 may be the same or different.

The wireless communication system 100 includes a configuration component 199 that can be configured to configure a UE 104 to communicate (e.g., on a side link with another UE 104).

The wireless communication system 100 further includes a resource management component 198 that can be configured to identify a resource pool for communicating with another UE 104, wherein the resource pool includes a subset of resources that overlap with a Discontinuous Reception (DRX) mode on-duration of the other UE 104; and communicate with the other UE 104 using one or more resources in the resource pool.

Fig. 2 depicts aspects of an example Base Station (BS) 102 and User Equipment (UE) 104.

In general, base station 102 includes various processors (e.g., 220, 230, 236, 238, and 240), memory 242, scheduler 244, antennas 234a-t (collectively 234), transceivers 232a-t (collectively 232) including modulators and demodulators, and other aspects that enable wireless transmission of data (e.g., data source 212) and wireless reception of data (e.g., data sink 239). For example, the base station 102 may send and receive data between itself and the user equipment 104.

The base station 102 includes a controller/processor 240 that may be configured to implement various functions related to wireless communications. In the depicted example, controller/processor 240 includes configuration component 241, which may represent configuration component 199 of fig. 1. It is noted that while depicted as an aspect of controller/processor 240, configuration component 241 may additionally or alternatively be implemented in various other aspects of base station 102 in other implementations.

In general, the user equipment 104 includes various processors (e.g., 256, 258, 264, 266, and 280), memory 282, antennas 252a-r (collectively 252), transceivers 254a-r (collectively 254) including modulators and demodulators, and other aspects that enable wireless transmission of data (e.g., data source 262) and wireless reception of data (e.g., data sink 260).

The user equipment 104 includes a controller/processor 280 that may be configured to implement various functions related to wireless communications. In the depicted example, controller/processor 280 includes resource management component 281, which may represent resource management component 198 of FIG. 1. Notably, while depicted as an aspect of the controller/processor 280, the resource management component 281 may additionally or alternatively be implemented in various other aspects of the user equipment 104 in other implementations.

Fig. 3A-3D depict aspects of a data structure for a wireless communication network, such as the wireless communication system 100 of fig. 1. Specifically, fig. 3A is a diagram 300 illustrating an example of a first subframe within a 5G (e.g., 5G New Radio (NR)) frame structure, fig. 3B is a diagram 330 illustrating an example of a Downlink (DL) channel within a 5G subframe, fig. 3C is a diagram 350 illustrating an example of a second subframe within a 5G frame structure, and fig. 3D is a diagram 380 illustrating an example of an Uplink (UL) channel within a 5G subframe.

Additional description with respect to fig. 1, 2, and 3A-3D is provided elsewhere in this disclosure.

Fig. 4 is a diagram illustrating an example 400 of side link communication according to the present disclosure.

As shown in fig. 4, a first UE 405-1 may communicate with a second UE 405-2 (and one or more other UEs 405) via one or more side link channels 410. The UEs 405-1 and 405-2 may communicate using one or more side link channels 410 for peer-to-peer (P2P) communication, device-to-device (D2D) communication, internet of vehicles (V2X) communication (e.g., which may include vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, etc.), mesh network, and so forth. In some aspects, the UE 405 (e.g., UE 405-1 and/or UE 405-2) may correspond to one or more other UEs described elsewhere herein, such as UE 104. In some aspects, one or more side-link channels 410 may use a PC5 interface and/or may operate in a high frequency band (e.g., 5.9GHz band). Additionally or alternatively, the UE 405 may synchronize the timing of Transmission Time Intervals (TTIs) (e.g., frames, subframes, slots, symbols, etc.) using Global Navigation Satellite System (GNSS) timing.

As further shown in fig. 4, the one or more side link channels 410 may include a physical side link control channel (PSCCH) 415, a physical side link shared channel (PSSCH) 420, and/or a physical side link feedback channel (PSFCH) 425.PSCCH 415 may be used to convey control information similar to a Physical Downlink Control Channel (PDCCH) and/or a Physical Uplink Control Channel (PUCCH) for cellular communication with base station 102 via an access link or access channel. The PSSCH 420 may be used to convey data similar to a Physical Downlink Shared Channel (PDSCH) and/or a Physical Uplink Shared Channel (PUSCH) used for cellular communication with the base station 102 via an access link or access channel. For example, PSCCH 415 may carry side link control information (SCI) 430, which may indicate various control information for side link communications, such as one or more resources (e.g., time resources, frequency resources, spatial resources, etc.), where Transport Blocks (TBs) 435 may be carried on PSCCH 420. TB 435 may include data. The PSFCH 425 may be used to communicate side chain feedback 440, such as hybrid automatic repeat request (HARQ) feedback (e.g., acknowledgement or negative acknowledgement (ACK/NACK) information), transmit Power Control (TPC), scheduling Request (SR), and so forth.

In some aspects, one or more side link channels 410 may use a pool of resources. For example, a particular Resource Block (RB) may be used across time to transmit a scheduling assignment in a subchannel (e.g., included in SCI 430). In some aspects, data transmissions associated with a scheduling assignment (e.g., on PSSCH 420) may occupy adjacent Resource Blocks (RBs) in the same subframe as the scheduling assignment (e.g., using frequency division multiplexing). In some aspects, the scheduling assignment and associated data transmission are not transmitted on adjacent RBs.

In some aspects, the UE 405 may operate using a transmission mode in which resources are selected and/or scheduled to be performed by the UE 405 (e.g., rather than the base station 102). In some aspects, the UE 405 may perform resource selection and/or scheduling by sensing channel availability for transmissions. For example, the UE 405 may measure Received Signal Strength Indicator (RSSI) parameters (e.g., side link-RSSI (S-RSSI) parameters) associated with various side link channels; reference Signal Received Power (RSRP) parameters (e.g., PSSCH-RSRP parameters) associated with various side link channels may be measured; reference Signal Received Quality (RSRQ) parameters (e.g., PSSCH-RSRQ parameters) associated with various side link channels, etc. may be measured; and a channel for transmitting side-link communications may be selected based at least in part on the measurement(s).

Additionally or alternatively, UE 405 may perform resource selection and/or scheduling using SCI 430 (which may indicate occupied resources, channel parameters, etc.) received in PSCCH 415. Additionally or alternatively, the UE 405 may perform resource selection and/or scheduling by determining a Channel Busy Rate (CBR) associated with various side chain channels, which may be used for rate control (e.g., by indicating a maximum number of resource blocks that the UE 405 may use for a particular set of subframes).

In a transmission mode in which resource selection and/or scheduling is performed by UE 405, UE 405 may generate side link grants and may transmit these grants in SCI 430. The side-link grant may indicate, for example, one or more parameters (e.g., transmission parameters) to be used for the upcoming side-link transmission, such as one or more resource blocks to be used for the upcoming side-link transmission on PSSCH 420 (e.g., for TB 435), one or more subframes to be used for the upcoming side-link transmission, a Modulation and Coding Scheme (MCS) to be used for the upcoming side-link transmission, and the like. In some aspects, the UE 405 may generate a side link grant indicating one or more parameters for semi-persistent scheduling (SPS), such as periodicity of the side link transmission. Additionally or alternatively, the UE 405 may generate side chain grants for event driven scheduling (such as for on-demand side chain messages).

As indicated above, fig. 4 is provided as an example. Other examples may differ from the example described with respect to fig. 4.

Fig. 5 is a diagram illustrating an example 500 of side link communication and access link communication according to the present disclosure.

As shown in fig. 5, a transmitting (Tx)/receiving (Rx) UE 505 and an Rx/Tx UE 510 may communicate with each other via a side link, as described above in connection with fig. 4. As further shown, in some sidelink modes, the base station 520 may communicate with the Tx/Rx UE 505 via a first access link. Additionally or alternatively, in some sidelink modes, the base station 520 may communicate with the Rx/Tx UE 510 via a second access link. The Tx/Rx UE 505 and/or the Rx/Tx UE 510 may correspond to one or more UEs described elsewhere herein, such as UE 104 of fig. 1. Base station 520 may correspond to one or more base stations described elsewhere herein, such as base station 102 of fig. 1. Thus, the direct link between UEs 104 (e.g., via the PC5 interface) may be referred to as a "side link" and the direct link between base station 102 and UEs 104 (e.g., via the Uu interface) may be referred to as an "access link". The side link communication may be transmitted via a side link and the access link communication may be transmitted via an access link. The access link communication may be a downlink communication (from the base station 102 to the UE 104) or an uplink communication (from the UE 104 to the base station 102).

As indicated above, fig. 5 is provided as an example. Other examples may differ from the example described with respect to fig. 5.

Fig. 6 is a diagram illustrating an example 600 of a DRX configuration according to the present disclosure.

As shown in fig. 6, a base station 602 may transmit a DRX configuration to a UE 604 to configure a DRX cycle 605 for the UE 604. Base station 602 may correspond to base station 102 and UE 604 may correspond to UE 104 of fig. 1. The DRX cycle 605 may include a DRX on duration 610 (e.g., during which the UE 604 is in an awake or active state) and an opportunity to enter a DRX sleep state 615. As used herein, the time during which the UE 604 is configured to be in an active state during the DRX on duration 610 may be referred to as "active time" and the time during which the UE 604 is configured to be in the DRX sleep state 615 may be referred to as "inactive time". As described herein, the UE 604 may monitor a downlink control channel (e.g., PDCCH) during active times and may refrain from monitoring the PDCCH during inactive times.

During DRX on duration 610 (e.g., active time), UE 604 may monitor a downlink control channel (e.g., PDCCH), as indicated by reference numeral 620. For example, the UE 604 may monitor the PDCCH for Downlink Control Information (DCI) related to the UE 604. If during the DRX on duration 610, the UE 604 does not detect and/or successfully decode any PDCCH communications intended for the UE 604, the UE 604 may enter a sleep state 615 (e.g., for an inactive time) at the end of the DRX on duration 610, as shown by reference numeral 625. In this way, the UE 604 may save battery power and reduce power consumption. As shown, the DRX cycle 605 may be periodically repeated in a configured manner according to a DRX configuration.

If the UE 604 detects and/or successfully decodes PDCCH communications intended for the UE 604, the UE 604 may remain in an active state (e.g., awake) for the duration of the DRX inactivity timer 630 (e.g., which may extend the active time). The UE 604 may start the DRX inactivity timer 630 at the time the PDCCH communication is received (e.g., in a Transmission Time Interval (TTI) such as a slot, subframe, etc., in which the PDCCH communication is received). The UE 604 may remain in the active state until the DRX inactivity timer 630 expires, at which point the UE 604 may enter the sleep state 615 (e.g., for an inactivity time), as shown by reference numeral 635. During the duration of the DRX inactivity timer 630, the UE 604 may continue to monitor PDCCH communications, may obtain downlink data communications scheduled by PDCCH communications (e.g., on a downlink data channel such as PDSCH), may prepare and/or transmit uplink communications scheduled by PDCCH communications (e.g., on PUSCH), and so on. The UE 604 may restart the DRX inactivity timer 630 after each detection of PDCCH communication for the UE 604 for initial transmission (e.g., rather than for retransmission). By operating in this manner, the UE 604 may conserve battery power and reduce power consumption by entering the sleep state 615.

As indicated above, fig. 6 is provided as an example. Other examples may differ from the example described with respect to fig. 6.

When differently configured UEs are deployed in the same area, the resource selection may become misaligned. For example, some UEs may be configured as 3GPP release 16 (Rel-16) UEs and select a first resource, and other UEs may be configured as 3GPP release 17 (Rel-17) UEs and select a second resource that does not overlap with the first resource. Additionally or alternatively, some UEs may be configured according to an earlier 3GPP release (e.g., earlier than release 16) and/or configured according to a later 3GPP release (e.g., later than release 17), and select a third or fourth resource that is not aligned with the first or second resource.

The resource selection may involve features configured for the UE, and different features may be introduced periodically in different versions. For example, side link DRX is introduced in release 17. Thus, release 16 UEs may not be configured to be compatible with side link DRX because side link DRX is not included in release 16. In other words, release 16UE may select the first resource without considering side link DRX. When communicating on the side link, release 16 UEs may select resources according to a release 16 resource selection procedure. In some cases, release 16 UEs may select resources on which release 17 UEs will monitor according to the side link DRX mode. In other words, release 16UE may select a first resource that is aligned with a second resource selected by release 17UE (e.g., it may select the second resource according to the side link DRX mode). In this case, release 16UE may successfully communicate with release 17UE using side link DRX.

However, if the release 16UE selects resources that the release 17UE will not monitor on according to the side link DRX mode, the release 16UE may not be able to communicate with the release 17 UE. For example, release 16 UEs may select a first resource that occurs during a sleep state of a side link DRX mode of release 17 UEs (e.g., release 17 UEs may select a second resource during an on-duration of the side link DRX mode), which may result in release 17 UEs not receiving transmissions from release 16 UEs. Thus, communications between differently configured UEs (such as release 16 UEs and release 17 UEs) may be unreliable and suffer from failure.

Some aspects described herein enable configuration of a dedicated set of resources ("resource pool") that enables a first UE to communicate with a second UE. For example, release 16 UEs may be configured with a set of resources aligned with the side link DRX on duration (even though the release 16UE is not configured with side link DRX capabilities). Similarly, release 17 UEs may be configured such that the resource set of release 17 UEs overlaps with the dedicated resource set of release 16 UEs. In this case, when release 16UE attempts to communicate with release 17UE using the dedicated set of resources, release 16UE will use resources aligned with the side chain DRX on duration of release 17UE, thereby enabling communication. In this way, aspects described herein improve reliability of communications and reduce the likelihood of communication failure between differently configured UEs.

Fig. 7 is a diagram illustrating an example 700 associated with side-link communications for differently configured UEs in accordance with the present disclosure. As shown in fig. 7, example 700 includes communications between a base station 702, a first UE 704-1, and a second UE 704-2 (UE 704), which may correspond to other base stations (e.g., base station 102) and UEs (e.g., UE 104) described herein. The UE 704-1 may be a first type of UE, such as a release 16UE configured without a side link DRX mode, and the UE 704-2 may be a second type of UE, such as a release 17UE configured with a side link DRX mode. In some aspects, the base station 702 and the UE 704 may be included in a wireless network, such as the wireless communication system 100. The base station 702 and the UE 704 may communicate via a radio access link, which may include an uplink and a downlink, and the UE 704-1 may communicate with the UE 704-2 via a radio side link, which may include a forward link and a reverse link.

As shown by reference numerals 705 and 710, the UE 704-1 may identify a configured resource pool for communication with the UE 704-2, such as based at least in part on receiving information from the base station 702 for the resource pool. For example, the base station 702 can configure a dedicated set of resources (e.g., a resource pool) for use by a release 16UE (such as UE 704-1) to communicate with a release 17UE (such as UE 704-2) that is using DRX mode. In this case, the dedicated resource set may have an association between a service type (e.g., V2X or V2P service type) and a resource pool (e.g., a Provider Service Identifier (PSID) or an Application Identifier (AID) of the resource pool). In this case, the UE 704-1 may identify an association between the service type and the resource pool to identify a set of dedicated resources configured for communication with the UE 704-2. In some aspects, the UE 704-1 may identify a configured resource pool for the UE 704-2 based at least in part on the profile. For example, based at least in part on a profile indicating that the UE 704-2 is configured to use and/or is using a DRX mode, the UE 704-1 may identify a resource pool aligned with the DRX mode.

In some aspects, a dedicated set of resources may be configured for at least a subset of another set of resources. For example, the UE 704-1 may have a first resource pool for communicating with other UEs not using DRX mode and a second resource pool for communicating with UEs that are using DRX mode. In this case, the second resource pool may use the same sub-channel as the first resource pool and may use the same time slot or subset thereof covered by the first resource pool. The subset of slots may correspond to an on-duration of a DRX mode, such as may be used by the UE 704-2. In this case, the UE 704-2 may be configured to use the second resource pool or a third resource pool including the second resource pool. In this way, while the UE 704-2 monitors to receive communications (e.g., on the third or second resource pool), the UE 704-2 may receive communications from the UE 704-1 (e.g., that is transmitting using the second resource pool).

In some aspects, the UE 704-1 may identify configured resources aligned with a particular set of time slots. For example, the base station 702 can configure the UE 704-1 to have resources limited to the number of slots aligned with the DRX on duration of the UE 704-2. Additionally or alternatively, the UE 704-1 may identify configured resources having configured gaps between contiguous side link slot groups. For example, the base station 702 may configure the UE 704-1 such that a gap between groups of contiguous side link timeslots in a resource pool (e.g., for communication with the UE 704-2) is greater than a maximum packet delay budget. In this way, the UE 704-1 may align retransmissions using groups of contiguous side chains Lu Shixi with the on-duration of the UE 704-2.

As shown at reference numeral 715, the UE 704-1 may communicate with the UE 704-2 using a configured resource pool. For example, the UE 704-1 may use a resource pool aligned with the DRX on-duration of the UE 704-2 to transmit information to the UE 704-2. In this case, the UE 704-2 may be limited to have a DRX on duration that matches the configured resource pool, thereby enabling communication between the UE 704-1 and the UE 704-2 without interrupting or dropping the communication.

As indicated above, fig. 7 is provided as an example. Other examples may differ from the example described with respect to fig. 7.

Fig. 8 is a diagram illustrating an example process 800 performed, for example, by a first UE, in accordance with the present disclosure. The example process 800 is an example in which a first UE (e.g., the UE 104 and other UEs described herein) performs operations associated with side link communications for differently configured UEs.

As shown in fig. 8, in some aspects, process 800 may include: a set of resources for communicating with a second UE is identified, wherein the set of resources includes a subset of resources that overlap with a DRX mode on duration of the second UE (block 810). For example, the UE (e.g., using the identification component 908 depicted in fig. 9) can identify a set of resources for communicating with the second UE, wherein the set of resources includes a subset of resources that overlap with the DRX mode on duration of the second UE, as described above.

As further shown in fig. 8, in some aspects, process 800 may include communicating with a second UE using one or more resources of the set of resources (block 820). For example, the UE (e.g., using the receiving component 902 and/or the transmitting component 904 depicted in fig. 9) can communicate with a second UE using one or more resources of the set of resources, as described above.

Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in conjunction with one or more other processes described elsewhere herein.

In a first aspect, the set of resources is a first set of resources assigned for communication with UEs that use DRX mode and associated with one or more particular sub-channels, and the first UE is configured to use a second set of resources assigned for communication with UEs that do not use DRX mode and associated with the one or more particular sub-channels.

In a second aspect, alone or in combination with the first aspect, the set of resources is a first set of resources assigned for communication with a UE using DRX mode and associated with one or more specific subchannels, and the second UE is configured to use a second set of resources associated with the one or more specific subchannels.

In a third aspect, alone or in combination with one or more of the first and second aspects, the set of resources has an association with a particular set of applications or services.

In a fourth aspect, alone or in combination with one or more of the first to third aspects, the association is based at least in part on at least one of a V2X service type, a provider service identifier, or an application identifier.

In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the second UE is configured to use the set of resources.

In a sixth aspect, alone or in combination with one or more of the first to fourth aspects, the second UE is not configured to use the set of resources.

In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the set of resources includes only slots of DRX on duration.

In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, a gap between a first group of contiguous side link timeslots in the set of resources and a second group of contiguous side link timeslots in the set of resources is greater than a maximum packet delay budget for a connection with a second UE.

In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the second UE is configured to have at least one DRX on duration aligned with the set of resources.

While fig. 8 shows example blocks of the process 800, in some aspects, the process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than depicted in fig. 8. Additionally or alternatively, two or more blocks of process 800 may be performed in parallel.

Example Wireless communication device

Fig. 9 is a block diagram of an example apparatus 900 for wireless communication. The apparatus 900 may be a UE or the UE may include the apparatus 900. In some aspects, apparatus 900 includes a receiving component 902 and a transmitting component 904 that can be in communication with each other (e.g., via one or more buses and/or one or more other components). As shown, apparatus 900 may use a receiving component 902 and a transmitting component 904 to communicate with another apparatus 906 (such as a UE, a base station, or another wireless communication device). As further shown, the apparatus 900 can include an identification component 908, as well as other examples.

In some aspects, apparatus 900 may be configured to perform one or more operations described herein. Additionally or alternatively, the apparatus 900 may be configured to perform one or more processes described herein, such as the process 800 of fig. 8, and so forth. In some aspects, apparatus 900 and/or one or more components shown in fig. 9 may include one or more components of the UE described above in connection with fig. 2. Additionally or alternatively, one or more of the components shown in fig. 9 may be implemented within one or more of the components described above in connection with fig. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executed by a controller or processor to perform the functions or operations of the component.

The receiving component 902 can receive a communication (such as a reference signal, control information, data communication, or a combination thereof) from a device 906. The receiving component 902 can provide the received communication to one or more other components of the apparatus 900. In some aspects, the receiving component 902 can perform signal processing (such as filtering, amplifying, demodulating, analog-to-digital converting, demultiplexing, deinterleaving, demapping, equalizing, interference cancellation or decoding, etc.) on the received communication and can provide the processed signal to one or more other components of the apparatus 906. In some aspects, the receiving component 902 may include one or more antennas, demodulators, MIMO detectors, receive processors, controllers/processors, memories, or a combination thereof for a UE as described above in connection with fig. 2.

The transmission component 904 can transmit a communication (such as a reference signal, control information, data communication, or a combination thereof) to the device 906. In some aspects, one or more other components of the apparatus 906 may generate a communication and may provide the generated communication to the transmission component 904 for transmission to the apparatus 906. In some aspects, the transmission component 904 can perform signal processing (such as filtering, amplifying, modulating, digital-to-analog converting, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communication and can transmit the processed signal to the device 906. In some aspects, the transmission component 904 may include one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers/processors, memories, or combinations thereof of the UE described above in connection with fig. 2. In some aspects, the transmission component 904 can be co-located with the reception component 902 in a transceiver.

The identification component 908 can identify a set of resources for communicating with the device 906, wherein the set of resources comprises a subset of resources that overlap with a DRX mode on duration of the device 906. The receiving component 902 and/or the transmitting component 904 can employ one or more resources of the set of resources to communicate with the device 906.

The number and arrangement of components shown in fig. 9 are provided as examples. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in fig. 9. Further, two or more components shown in fig. 9 may be implemented within a single component, or a single component shown in fig. 9 may be implemented as multiple distributed components. Additionally or alternatively, the set of components (one or more components) shown in fig. 9 may perform one or more functions described as being performed by another set of components shown in fig. 9.

Fig. 10 depicts an example communication device 1000 that includes various components operable, configured, or adapted to perform operations for the techniques disclosed herein, such as the operations depicted and described with reference to fig. 7-8. In some examples, the communication device 1000 may be a base station 102, such as the base station 102 described with reference to fig. 1 and 2.

The communication device 1000 includes a processing system 1002 that is operatively coupled to a transceiver 1008 (e.g., a transmitter and/or receiver). The transceiver 1008 is configured to transmit (or send) and receive signals (such as the various signals described herein) for the communication device 1000 via the antenna 1010. The processing system 1002 may be configured to perform processing functions for the communication device 1000, including processing signals received and/or to be transmitted by the communication device 1000.

The processing system 1002 includes one or more processors 1020 operatively coupled to a computer-readable medium/memory 1030 via a bus 1006. In certain aspects, the computer-readable medium/memory 1030 is configured to store instructions (e.g., computer-executable code) that, when executed by the one or more processors 1020, cause the one or more processors 1020 to perform the operations illustrated in fig. 7-8 or other operations for performing various techniques for side-link communication for differently configured UEs described herein.

In the depicted example, computer-readable medium/memory 1030 stores code 1031 for identifying a set of resources for communicating with the second UE and code 1032 for communicating with the second UE using one or more resources of the set of resources.

In the depicted example, the one or more processors 1020 include circuitry configured to implement code stored in the computer readable medium/memory 1030, including: circuitry 1021 for identifying a set of resources for communicating with a second UE and circuitry 1022 for communicating with the second UE using one or more resources of the set of resources.

The various components of the communication device 1000 may provide means for performing the methods described herein (including with reference to fig. 7-8).

In some examples, the means for identifying a set of resources for communicating with the second UE and the means for communicating with the second UE using one or more resources of the set of resources may include various processing system components, such as one or more processors 1020 in fig. 10, or aspects of the UE 104 depicted in fig. 2, including a receive processor 258, a transmit processor 264, a Transmit (TX) MIMO processor 266, and/or a controller/processor 280 (including a resource management component 281).

It is noted that fig. 10 is an example, and that many other examples and configurations of communication device 1000 are possible.

Example aspects

The following provides an overview of aspects of the disclosure:

Aspect 1: a wireless communication method performed by a UE, comprising: identifying a set of resources for communicating with a second UE, wherein the set of resources includes a subset of resources that overlap with a Discontinuous Reception (DRX) mode on-duration of the second UE; and communicate with the second UE using one or more resources of the set of resources.

Aspect 2: the method of aspect 1, wherein the set of resources is a first set of resources assigned for communication with UEs that use DRX mode and associated with one or more subchannels, and wherein the first UE is configured to use a second set of resources assigned for communication with UEs that do not use DRX mode and associated with the one or more subchannels.

Aspect 3: the method of any of aspects 1-2, wherein the set of resources is a first set of resources assigned for communication with a UE using DRX mode and associated with one or more subchannels, and

wherein the second UE is configured to use a second set of resources associated with the one or more subchannels.

Aspect 4: the method of any of aspects 1-3, wherein the set of resources has an association with a set of applications or services.

Aspect 5: the method of any one of aspects 1-4, wherein the associating is based at least in part on at least one of: a type of internet of vehicle (V2X) service, a provider service identifier, or an application identifier.

Aspect 6: the method of any of aspects 1-5, wherein the second UE is configured to use the set of resources.

Aspect 7: the method of any of aspects 1-5, wherein the second UE is not configured to use the set of resources.

Aspect 8: the method of any of aspects 1-7, wherein the set of resources comprises only slots of the DRX on duration.

Aspect 9: the method of any of aspects 1-8, wherein a gap between a first group of contiguous side link timeslots in the set of resources and a second group of contiguous side link timeslots in the set of resources is greater than a maximum packet delay budget for a connection with the second UE.

Aspect 10: the method of any of aspects 1-9, wherein the second UE is configured to have at least one DRX on duration aligned with the set of resources.

Aspect 11: an apparatus for wireless communication at a device, comprising: a processor; a memory operatively coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more of aspects 1-10.

Aspect 12: an apparatus for wireless communication, comprising: a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to perform the method of one or more of aspects 1-10.

Aspect 13: an apparatus for wireless communication, comprising: at least one apparatus for performing the method of one or more of aspects 1-10.

Aspect 14: a non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of aspects 1-10.

Aspect 15: a non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform a method of one or more of aspects 1-10.

The foregoing disclosure provides insight and description, but is not intended to be exhaustive or to limit aspects to the precise form disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of the various aspects.

As used herein, the term "component" is intended to be broadly interpreted as hardware and/or a combination of hardware and software. "software" should be construed broadly to mean instructions, instruction sets, code segments, program code, programs, subroutines, software modules, applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and/or functions, etc., whether described in terms of "software," "firmware," "middleware," "microcode," "hardware description language," or other terminology. As used herein, a "processor" is implemented in hardware, and/or a combination of hardware and software. It will be apparent that the systems and/or methods described herein may be implemented in different forms of hardware, and/or combinations of hardware and software. The actual specialized control hardware or software code used to implement the systems and/or methods is not limiting of the aspects. Thus, the operation and behavior of the systems and/or methods were described herein without reference to the specific software code-as one of ordinary skill in the art would understand that software and hardware could be designed to implement the systems and/or methods based at least in part on the description herein.

As used herein, a "meeting a threshold" may refer to a value greater than a threshold, greater than or equal to a threshold, less than or equal to a threshold, not equal to a threshold, etc., depending on the context.

Although specific combinations of features are recited in the claims and/or disclosed in the specification, such combinations are not intended to limit the disclosure of the various aspects. Many of these features may be combined in ways not specifically recited in the claims and/or disclosed in the specification. The disclosure of the various aspects includes each dependent claim combined with each other claim of the set of claims. As used herein, a phrase referring to a list of items "at least one of" refers to any combination of these items, including individual members. As an example, "at least one of a, b, or c" is intended to encompass: a. b, c, a+b, a+c, b+c, and a+b+c, as well as any combination having multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c b+b, b+b+b, b+b+c, c+c, and c+c+c, or any other ordering of a, b and c).

No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. Moreover, as used herein, the articles "a" and "an" are intended to include one or more items, and may be used interchangeably with "one or more". Furthermore, as used herein, the articles "a" and "an" are intended to include one or more items, and may be used interchangeably with "one or more". Furthermore, as used herein, the terms "set" and "group" are intended to include one or more items, and may be used interchangeably with "one or more". Where only one item is intended, the phrase "only one" or similar language is used. Also, as used herein, the terms "having," "containing," "including," and the like are intended to be open ended terms that do not limit the element they modify (e.g., the element "having" a may also have B). Furthermore, the phrase "based on" is intended to mean "based, at least in part, on" unless explicitly stated otherwise. Also, as used herein, the term "or" when used in a sequence is intended to be inclusive and may be used interchangeably with "and/or" unless otherwise specifically stated (e.g., where used in conjunction with "any one of" or "only one of").

Claims (20)

1. A first User Equipment (UE) configured for wireless communication, comprising:

a memory; and

one or more processors coupled to the memory, the memory and the one or more processors configured to cause the first UE to:

identifying a set of resources for communicating with a second UE, wherein the set of resources includes a subset of resources that overlap with a Discontinuous Reception (DRX) mode on-duration of the second UE; and

one or more resources of the set of resources are used to communicate with the second UE.

2. The first UE of claim 1, wherein the set of resources is a first set of resources assigned for communication with a UE using DRX mode and associated with one or more subchannels, and

wherein the first UE is configured to use a second set of resources assigned for communication with UEs that do not use DRX mode and associated with the one or more subchannels.

3. The first UE of claim 1, wherein the set of resources is a first set of resources assigned for communication with a UE using DRX mode and associated with one or more subchannels, and

wherein the second UE is configured to use a second set of resources associated with the one or more subchannels.

4. The first UE of claim 1, wherein the set of resources has an association with a set of applications or services.

5. The first UE of claim 4, wherein the association is based at least in part on at least one of: a type of internet of vehicle (V2X) service, a provider service identifier, or an application identifier.

6. The first UE of claim 1, wherein the second UE is configured to use the set of resources.

7. The first UE of claim 1, wherein the second UE is not configured to use the set of resources.

8. The first UE of claim 1, wherein the set of resources comprises only slots of the DRX on duration.

9. The first UE of claim 1, wherein a gap between a first group of contiguous side link timeslots in the set of resources and a second group of contiguous side link timeslots in the set of resources is greater than a maximum packet delay budget for a connection with the second UE.

10. The first UE of claim 1, wherein the second UE is configured to have at least one DRX on duration aligned with the set of resources.

11. A method of wireless communication performed by a first User Equipment (UE), comprising:

identifying a set of resources for communicating with a second UE, wherein the set of resources includes a subset of resources that overlap with a Discontinuous Reception (DRX) mode on-duration of the second UE; and

One or more resources of the set of resources are used to communicate with the second UE.

12. The method of claim 11, wherein the set of resources is a first set of resources assigned for communication with a UE using DRX mode and associated with one or more subchannels, and

wherein the first UE is configured to use a second set of resources assigned for communication with UEs that do not use DRX mode and associated with the one or more subchannels.

13. The method of claim 11, wherein the set of resources is a first set of resources assigned for communication with a UE using DRX mode and associated with one or more subchannels, and

wherein the second UE is configured to use a second set of resources associated with the one or more subchannels.

14. The method of claim 11, wherein the set of resources has an association with a set of applications or services.

15. The method of claim 14, wherein the associating is based at least in part on at least one of: a type of internet of vehicle (V2X) service, a provider service identifier, or an application identifier.

16. The method of claim 11, wherein the second UE is configured to use the set of resources.

17. The method of claim 11, wherein the second UE is not configured to use the set of resources.

18. The method of claim 11, wherein the set of resources comprises only slots of the DRX on duration.

19. The method of claim 11, wherein a gap between a first group of contiguous side link timeslots in the set of resources and a second group of contiguous side link timeslots in the set of resources is greater than a maximum packet delay budget for a connection with the second UE.

20. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a first User Equipment (UE), cause the first UE to:

identifying a set of resources for communicating with a second UE, wherein the set of resources includes a subset of resources that overlap with a Discontinuous Reception (DRX) mode on-duration of the second UE; and

one or more resources of the set of resources are used to communicate with the second UE.