Sidelink communications for differently configured user equipment

Abstract

Various aspects of the disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) can identify a set of resources for communicating with a second UE, where the set of resources includes a subset of resources that overlap with an on-duration time duration of a discontinuous reception (DRX) mode of the second UE. The first UE can communicate with the second UE using one or more resources of the set of resources. Numerous other aspects are described.

Description

[0001] Cross-reference to related applications

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 123,870, filed December 10, 2020, entitled “SIDELINK COMMUNICATIONS FOR DIFFERENTLY-CONFIGURED USER EQUIPMENT,” and U.S. Non-Provisional Patent Application No. 17 / 457,780, filed December 6, 2021, entitled “SIDELINK COMMUNICATIONS FOR DIFFERENTLY-CONFIGURED USER EQUIPMENT,” which are hereby expressly incorporated by reference.

[0003] introduction

[0004] Various aspects of this disclosure relate to wireless communication, and in particular to techniques for sidelink communication for user equipment (UE) in different configurations.

[0005] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, broadcasting, or other similar services. These wireless communication systems can employ multiple access technologies that enable communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, or other resources). Multiple access technologies can rely on code division, time division, frequency division, orthogonal frequency division, single-carrier frequency division, or time-division synchronous code division, to name just a few. These and other multiple access technologies have been adopted in various telecommunications standards to provide a common protocol enabling different wireless devices to communicate at the city, national, regional, and even global levels.

[0006] Despite the tremendous technological advancements in wireless communication systems over the years, challenges remain. For example, complex and dynamic environments can still attenuate or block signals between wireless transmitters and receivers, disrupting various established wireless channel measurement and reporting mechanisms for managing and optimizing the use of limited wireless channel resources. Therefore, there is a need for further improvements to wireless communication systems to overcome these challenges. Summary of the Invention

[0007] One aspect provides a wireless communication method performed by a first user equipment (UE), comprising: identifying a resource set for communicating with a second UE, wherein the resource set includes a subset of resources that overlap with the discontinuous reception (DRX) mode activation duration of the second UE; and using one or more resources in the resource set to communicate with the second UE.

[0008] Other aspects provide: an apparatus operable to, configured to, or otherwise adapted to perform the foregoing methods and those methods described elsewhere herein; a non-transient computer-readable medium including instructions that, when executed by one or more processors of the apparatus, cause the apparatus to perform the foregoing methods and those methods described elsewhere herein; a computer program product implemented on a computer-readable storage medium including code for performing the foregoing methods and those methods described elsewhere herein; and an apparatus including means for performing the foregoing methods and those methods described elsewhere herein. As an example, an apparatus may include a processing system, an apparatus having a processing system, or a processing system cooperating via one or more networks.

[0009] For illustrative purposes, the following description and accompanying figures illustrate certain features. Brief description of the attached diagram

[0011] The accompanying drawings depict certain features of the aspects described herein and should not be considered as limiting the scope of this disclosure.

[0012] Figure 1 It is a block diagram that conceptually explains an example wireless communication network.

[0013] Figure 2 It is a block diagram that conceptually illustrates various aspects of base stations and user equipment (UE).

[0014] Figures 3A-3D Various example aspects of data structures used in wireless communication networks are described.

[0015] Figure 4 This is a diagram illustrating an example of sidelink communication according to this disclosure.

[0016] Figure 5 This is a diagram illustrating examples of sidelink communication and access link communication according to this disclosure.

[0017] Figure 6 This is a diagram illustrating an example of a discontinuous reception (DRX) configuration according to this disclosure.

[0018] Figure 7 This is a diagram illustrating an example of sidelink communication associated with a UE configured differently according to this disclosure.

[0019] Figure 8 This is a diagram illustrating an example process associated with sidelink communication for UEs configured differently according to this disclosure.

[0020] Figure 9This is a block diagram of an example device for wireless communication according to the present disclosure.

[0021] Figure 10 This is a block diagram of an example communication device according to this disclosure.

[0022] Detailed description

[0023] This disclosure provides apparatus, methods, processing systems, and computer-readable media for sidelink communication of user equipment (UE) in different configurations.

[0024] In some communication systems, differently configured UEs can be deployed in the same area. For example, in a vehicle-to-everything (V2X) communication system, some UEs may be configured as 3GPP Release 16 (Rel-16) UEs and others 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 releases. For example, Sidelink Discontinuous Receive (DRX) was introduced in Release 17. Therefore, a Release 16 UE may not be configured to be compatible with Sidelink DRX because Sidelink DRX was not included in Release 16.

[0025] When communicating on a sidelink, version 16 UE can select resources according to a resource selection procedure. In some cases, version 16 UE may select resources that version 17 UE will monitor according to the sidelink DRX mode. In this case, version 16 UE can successfully communicate with version 17 UE using sidelink DRX. However, if version 16 UE selects resources that version 17 UE will not monitor according to the sidelink DRX mode, version 16 UE may fail to communicate with version 17 UE. Therefore, communication between dissimilarly configured UEs (such as version 16 UE and version 17 UE) may be unreliable and prone to failure.

[0026] Some aspects described herein implement the configuration of a dedicated resource pool that enables a first UE to communicate with a second UE. For example, version 16 UE may be configured with a resource pool aligned with the sidelink DRX activation duration (even if version 16 UE is not configured with sidelink DRX capability). Similarly, version 17 UE may be configured such that the resource pool of version 17 UE overlaps with the dedicated resource pool of version 16 UE. In this scenario, when version 16 UE attempts to communicate with version 17 UE using the dedicated resource pool, version 16 UE will use resources aligned with the sidelink DRX activation duration of version 17 UE, thereby enabling communication. In this way, the aspects described herein improve communication reliability and reduce the likelihood of communication failures between UEs configured differently.

[0027] Introduction to Wireless Communication Networks

[0028] Figure 1 An example of a wireless communication system 100 in which the aspects described herein can be implemented is depicted.

[0029] Typically, wireless communication system 100 includes base station (BS) 102, user equipment (UE) 104, and one or more core networks, such as evolved packet core (EPC) and 5G core (5GC) networks, which interoperate to provide wireless communication services.

[0030] Base station 102 can provide user equipment 104 with an access point to the EPC and / or 5GC, and can perform one or more of the following functions: user data transmission, radio channel cryptography and decoding, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of Non-Access Stratum (NAS) messages, NAS node selection, synchronization, Radio Access Network (RAN) sharing, Multimedia Broadcast Multicast Service (MBMS), subscriber and equipment tracking, RAN Information Management (RIM), paging, location, delivery of alarm messages, and other functions. In various contexts, a base station may include and / or be referred to as “gNB,” “B node,” “eNB,” “ng-eNB” (e.g., an eNB enhanced to provide connectivity to the EPC and 5GC), “access point,” “base transceiver station,” “radio base station,” “radio transceiver,” “transceiver function,” or “transmitter-receiver point” (“TRP”).

[0031] Base station 102 communicates wirelessly with UE 104 via communication link 120. Each base station 102 can provide communication coverage for various geographical 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 areas 110 of one or more macro cells (e.g., high-power base stations).

[0032] The communication link 120 between base station 102 and UE 104 may include uplink (UL) (also referred to as "reverse link") transmission from user equipment 104 to base station 102 and / or downlink (DL) (also referred to as "forward link") transmission from base station 102 to user equipment 104. In various aspects, the communication link 120 may use multiple-input multiple-output (MIMO) antenna technologies, including spatial multiplexing, beamforming, and / or transmit diversity.

[0033] Examples of UE 104 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptop devices, personal digital assistants (PDAs), satellite radios, GPS devices, multimedia devices, video devices, digital audio players, cameras, game consoles, tablet devices, smart devices, wearable devices, vehicles, electricity meters, air pumps, large or small kitchen appliances, healthcare devices, implants, sensors / actuators, displays, or other similar devices. UE 104 can be an Internet of Things (IoT) device (e.g., a parking meter, air pump, oven, vehicle, heart monitor, or other IoT device), an always-on (AON) device, or an edge processing device. 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 device,” “remote device,” “mobile subscriber station,” “access terminal,” “mobile terminal,” “wireless terminal,” “remote terminal,” “handheld device,” “user agent,” “mobile client,” or “client.”

[0034] Compared to lower-frequency communication, communication using higher frequency bands can result in higher path loss and shorter range. Therefore, some base stations (e.g., Figure 1 The base station 180 in the UE 104 can utilize beamforming 182 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.

[0035] In some scenarios, base station 180 may transmit beamformed signals to UE 104 in one or more transmission directions 182'. UE 104 may receive beamformed signals from base station 180 in one or more reception directions 182'. UE 104 may also transmit beamformed signals to base station 180 in one or more transmission directions 182'. Base station 180 may also receive beamformed signals from UE 104 in one or more reception directions 182'. Base station 180 and UE 104 may then perform beamforming to determine the optimal reception and transmission directions for each of base station 180 and UE 104. It is worth noting that the transmission and reception directions of base station 180 may be the same or different. Similarly, the transmission and reception directions of UE 104 may be the same or different.

[0036] The wireless communication system 100 includes a configuration component 199 that can be configured to configure the UE 104 to communicate (e.g., on a side link with another UE 104).

[0037] The wireless communication system 100 further includes a resource management component 198, which 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 the discontinuous reception (DRX) mode activation duration of the other UE 104; and to use one or more resources in the resource pool to communicate with the other UE 104.

[0038] Figure 2 Various aspects of the example base station (BS) 102 and user equipment (UE) 104 are described.

[0039] Generally, base station 102 includes various processors (e.g., 220, 230, 236, 238, and 240), memory 242, scheduler 244, antennas 234a-t (collectively referred to as 234), transceivers 232a-t (collectively referred to as 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 trap 239). For example, base station 102 can transmit and receive data between itself and user equipment 104.

[0040] Base station 102 includes a controller / processor 240 that can be configured to implement various functions related to wireless communication. In the depicted example, controller / processor 240 includes components that can represent... Figure 1 Configuration component 241 of configuration component 199. It is worth noting that although depicted as one aspect of controller / processor 240, configuration component 241 may be additionally or alternatively implemented in various other aspects of base station 102 in other implementations.

[0041] Generally, user equipment 104 includes various processors (e.g., 256, 258, 264, 266, and 280), memory 282, antennas 252a-r (collectively referred to as 252), transceivers 254a-r (collectively referred to as 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 trap 260).

[0042] User equipment 104 includes a controller / processor 280 that can be configured to implement various functions related to wireless communication. In the depicted example, the controller / processor 280 includes components capable of representing... Figure 1 Resource management component 281 of resource management component 198. It is worth noting that although depicted as one aspect of controller / processor 280, resource management component 281 may be additionally or alternatively implemented in various other aspects of user equipment 104 in other implementations.

[0043] Figures 3A-3D Describes the use of wireless communication networks (such as Figure 1 The data structure of the wireless communication system 100) covers various aspects. Specifically, Figure 3A This is an illustration 300 showing an example of the first subframe within a 5G (e.g., 5G New Radio (NR)) frame structure. Figure 3B Figure 330 is an example illustrating the downlink (DL) channel within a 5G subframe. Figure 3C Figure 350 is an example illustrating the second subframe within the 5G frame structure, and Figure 3D Figure 380 is an example illustrating the uplink (UL) channel within a 5G subframe.

[0044] about Figure 1 , Figure 2 and Figures 3A-3D Additional descriptions are provided elsewhere in this disclosure.

[0045] Figure 4 This is a diagram illustrating example 400 of sidelink communication according to this disclosure.

[0046] like Figure 4As shown, the first UE 405-1 can communicate with the second UE 405-2 (and one or more other UEs 405) via one or more sidelink channels 410. UEs 405-1 and 405-2 can use one or more sidelink channels 410 to communicate for peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) communication (e.g., which may include vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, mesh networking, and so on. In some aspects, 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 sidelink channels 410 may use a PC5 interface and / or may operate in a high-frequency band (e.g., the 5.9 GHz band). Additionally or alternatively, UE 405 may use Global Navigation Satellite System (GNSS) timing to synchronize the timing of transmission time intervals (TTIs) (e.g., frames, subframes, time slots, symbols, etc.).

[0047] As in Figure 4 As further illustrated, the one or more sidelink channels 410 may include a Physical Sidelink Control Channel (PSCCH) 415, a Physical Sidelink Shared Channel (PSSCH) 420, and / or a Physical Sidelink 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. PSSCH 420 may be used to convey data, similar to a Physical Downlink Shared Channel (PDSCH) and / or a Physical Uplink Shared Channel (PUSCH) for cellular communication with base station 102 via an access link or access channel. For example, PSCCH 415 may carry Sidelink Control Information (SCI) 430, which may indicate various control information for sidelink communication, such as one or more resources (e.g., time resources, frequency resources, spatial resources, etc.), wherein a Transport Block (TB) 435 may be carried on PSSCH 420. TB 435 may include data. PSFCH 425 may be used to communicate sidelink feedback 440, such as Hybrid Automatic Repeat Request (HARQ) feedback (e.g., ACK / NACK information), Transmit Power Control (TPC), Scheduling Request (SR), and so on.

[0048] In some aspects, one or more sidelink channels 410 may use resource pools. For example, specific resource blocks (RBs) may be used across time to transmit scheduling assignments in a subchannel (e.g., included in SCI 430). In some aspects, data transmissions associated with scheduling assignments (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, scheduling assignments and associated data transmissions are not transmitted on adjacent RBs.

[0049] In some aspects, UE 405 may operate using a transmission mode in which resource selection and / or scheduling are performed by UE 405 (e.g., not by base station 102). In some aspects, UE 405 may perform resource selection and / or scheduling by sensing channel availability for transmission. For example, UE 405 may measure Received Signal Strength Indicator (RSSI) parameters (e.g., sidelink-RSSI (S-RSSI) parameters) associated with various sidelink channels; may measure Reference Signal Received Power (RSRP) parameters (e.g., PSSCH-RSRP parameters) associated with various sidelink channels; may measure Reference Signal Received Quality (RSRQ) parameters (e.g., PSSCH-RSRQ parameters) associated with various sidelink channels, and so on; and may select channels for transmitting sidelink communications based at least in part on (these) measurements.

[0050] Alternatively or additionally, UE 405 may use SCI 430 received in PSCCH 415 (which may indicate the resources used, channel parameters, etc.) to perform resource selection and / or scheduling. Alternatively or additionally, UE 405 may perform resource selection and / or scheduling by determining the Channel Busy Rate (CBR) associated with various sidelink channels, which may be used for rate control (e.g., by indicating the maximum number of resource blocks available to UE 405 for a particular subframe set).

[0051] In a transport mode where resource selection and / or scheduling is performed by UE 405, UE 405 may generate sidelink grants, and these grants may be transmitted in SCI 430. Sidelink grants may indicate one or more parameters (e.g., transport parameters) to be used for an upcoming sidelink transport, such as one or more resource blocks (e.g., for TB 435) to be used for an upcoming sidelink transport on PSSCH 420, one or more subframes to be used for an upcoming sidelink transport, modulation and coding scheme (MCS) to be used for an upcoming sidelink transport, etc. In some aspects, UE 405 may generate sidelink grants indicating one or more parameters for semi-persistent scheduling (SPS), such as the periodicity of sidelink transports. Additionally or alternatively, UE 405 may generate sidelink grants for event-driven scheduling (such as for on-demand sidelink messages).

[0052] As indicated above, Figure 4 This is provided as an example. Other examples may differ from the one provided. Figure 4 The example described.

[0053] Figure 5 This is a diagram illustrating example 500 of sidelink communication and access link communication according to this disclosure.

[0054] like Figure 5 As shown, the transmitting (Tx) / receiving (Rx) UE 505 and the Rx / Tx UE 510 can communicate with each other via a side link, as described above. Figure 4 As further illustrated, in some sidelink modes, base station 520 may communicate with Tx / Rx UE 505 via a first access link. Additionally or alternatively, in some sidelink modes, base station 520 may communicate with Rx / Tx UE 510 via a second access link. Tx / Rx UE 505 and / or Rx / Tx UE 510 may correspond to one or more UEs described elsewhere herein, such as... Figure 1 UE 104. Base station 520 may correspond to one or more base stations described elsewhere herein, such as Figure 1 The base station 102. Therefore, the direct link between UE 104 (e.g., via the PC5 interface) can be referred to as a "side link," and the direct link between base station 102 and UE 104 (e.g., via the Uu interface) can be referred to as an "access link." Side link communication can be transmitted via the side link, and access link communication can be transmitted via the access link. Access link communication can be downlink communication (from base station 102 to UE 104) or uplink communication (from UE 104 to base station 102).

[0055] As indicated above, Figure 5 This is provided as an example. Other examples may differ from the one provided. Figure 5 The example described.

[0056] Figure 6 This is a diagram illustrating an example 600 of the DRX configuration according to this disclosure.

[0057] like Figure 6 As shown, base station 602 can transmit DRX configuration to UE 604 to configure DRX cyclic 605 for UE 604. Base station 602 may correspond to base station 102 and UE 604 may correspond to Figure 1 UE 104. DRX cycle 605 may include a DRX enable duration 610 (during which UE 604 is in a wake-up or active state) and an opportunity to enter a DRX sleep state 615. As used herein, the time during which UE 604 is configured to be active during the DRX enable duration 610 may be referred to as the "active time," and the time during which UE 604 is configured to be in the DRX sleep state 615 may be referred to as the "inactive time." As described herein, UE 604 may monitor the downlink control channel (e.g., PDCCH) during the active time and may suppress monitoring of the PDCCH during the inactive time.

[0058] During the DRX enable duration 610 (e.g., active time), UE 604 may monitor the downlink control channel (e.g., PDCCH), as indicated by reference numeral 620. For example, UE 604 may monitor the PDCCH to look for downlink control information (DCI) associated with UE 604. If, during the DRX enable duration 610, UE 604 does not detect and / or successfully decodes any PDCCH communication intended for UE 604, UE 604 may enter a sleep state 615 (e.g., inactive time) at the end of the DRX enable duration 610, as indicated by reference numeral 625. In this way, UE 604 can conserve battery power and reduce power consumption. As shown, DRX cycle 605 may be configured to repeat periodically according to the DRX configuration.

[0059] If UE 604 detects and / or successfully decodes PDCCH communication intended for UE 604, UE 604 may remain in an active state (e.g., wake-up) for the duration of DRX inactivity timer 630 (e.g., this may extend the active time). UE 604 may start DRX inactivity timer 630 at the time of receiving PDCCH communication (e.g., within the Transmission Time Interval (TTI) of receiving PDCCH communication, such as a time slot, subframe, etc.). UE 604 may remain in an active state until DRX inactivity timer 630 expires, at which point UE 604 may enter a sleep state 615 (e.g., reach the inactivity time), as indicated by reference numeral 635. During the duration of the DRX inactivity timer 630, UE 604 can continue to monitor PDCCH communications, receive downlink data communications scheduled by PDCCH communications (e.g., on a downlink data channel such as PDSCH), prepare and / or transmit uplink communications scheduled by PDCCH communications (e.g., on PUSCH), and so on. UE 604 can restart the DRX inactivity timer 630 each time a PDCCH communication for UE 604 for initial transmission (e.g., not for retransmission) is detected. By operating in this manner, UE 604 can conserve battery power and reduce power consumption by entering sleep state 615.

[0060] As indicated above, Figure 6 This is provided as an example. Other examples may differ from the one provided. Figure 6 The example described.

[0061] When UEs configured differently are deployed in the same area, resource selection may become misaligned. For example, some UEs may be configured as 3GPP version 16 (Rel-16) UEs and select a first resource, while other UEs may be configured as 3GPP version 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 version (e.g., earlier than version 16) and / or according to a later 3GPP version (e.g., later than version 17), and select a third or fourth resource that is not aligned with the first or second resource.

[0062] Resource selection can involve features configured for the UE, and different features can be introduced periodically in different versions. For example, sidelink DRX was introduced in version 17. Therefore, a version 16 UE may not be configured to be compatible with sidelink DRX because sidelink DRX was not included in version 16. In other words, a version 16 UE can select a first resource regardless of sidelink DRX. When communicating on a sidelink, a version 16 UE can select a resource according to the version 16 resource selection procedure. In some cases, a version 16 UE can select a resource that a version 17 UE will monitor based on the sidelink DRX pattern. In other words, a version 16 UE can select a first resource aligned with a second resource selected by a version 17 UE (e.g., which may select a second resource based on the sidelink DRX pattern). In this case, a version 16 UE can successfully communicate with a version 17 UE that uses sidelink DRX.

[0063] However, if version 16 UE selects a resource that version 17 UE will not monitor based on the sidelink DRX mode, version 16 UE may fail to communicate with version 17 UE. For example, version 16 UE may select a first resource that occurs during the sleep state of version 17 UE's sidelink DRX mode (e.g., version 17 UE may select a second resource during the on duration of sidelink DRX mode), which could cause version 17 UE to fail to receive transmissions from version 16 UE. Therefore, communication between dissimilarly configured UEs (such as version 16 UE and version 17 UE) may be unreliable and prone to failure.

[0064] Some aspects described herein implement the configuration of a dedicated resource set (“resource pool”) that enables a first UE to communicate with a second UE. For example, version 16 UE may be configured with a resource set aligned with the sidelink DRX activation duration (even if version 16 UE is not configured with sidelink DRX capability). Similarly, version 17 UE may be configured such that the resource set of version 17 UE overlaps with the dedicated resource set of version 16 UE. In this case, when version 16 UE attempts to communicate with version 17 UE using the dedicated resource set, version 16 UE will use resources aligned with the sidelink DRX activation duration of version 17 UE, thereby enabling communication. In this way, the aspects described herein improve the reliability of communication and reduce the likelihood of communication failures between UEs configured differently.

[0065] Figure 7 This is a diagram illustrating example 700 associated with sidelink communication for UEs configured differently according to this disclosure. Figure 7As shown, Example 700 includes communication between 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. UE 704-1 may be a first type of UE, such as version 16 UE configured without sidelink DRX mode, and UE 704-2 may be a second type of UE, such as version 17 UE configured with sidelink DRX mode. In some aspects, base station 702 and UE 704 may be included in a wireless network (such as wireless communication system 100). Base station 702 and UE 704 may communicate via a wireless access link, which may include an uplink and a downlink, and UE 704-1 may communicate with UE 704-2 via a wireless sidelink, which may include a forward link and a reverse link.

[0066] As shown by reference numerals 705 and 710 in the accompanying drawings, UE 704-1 may identify a resource pool, for example, based at least in part on information received from base station 702 regarding a configured resource pool configured for communication with UE 704-2. For instance, base station 702 may configure a dedicated resource set (e.g., a resource pool) for use by a version 16 UE (such as UE 704-1) to communicate with a version 17 UE (such as UE 704-2) that is using DRX mode. In this scenario, 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 application identifier (AID) of the resource pool). In this scenario, UE 704-1 may identify the association between the service type and the resource pool to identify the dedicated resource set configured for communication with UE 704-2. In some aspects, UE 704-1 may identify the configured resource pool for UE 704-2 based at least in part on a profile. For example, based at least in part on a profile indicating that UE 704-2 is configured to use and / or is using DRX mode, UE 704-1 may identify a resource pool aligned with that DRX mode.

[0067] In some aspects, a dedicated resource set can be configured for at least a subset of another resource set. For example, 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 using DRX mode. In this case, the second resource pool may use the same subchannels as the first resource pool and may use the same time slots or a subset thereof covered by the first resource pool. The subset of time slots may correspond to the on-time of a DRX mode, such as that usable by UE 704-2. In this case, UE 704-2 may be configured to use the second resource pool or a third resource pool that includes the second resource pool. In this way, when UE 704-2 monitors for communication (e.g., on the third or second resource pool), UE 704-2 can receive communication from UE 704-1 (e.g., which is using the second resource pool for transmission).

[0068] In some respects, UE 704-1 may identify configured resources aligned with a specific set of time slots. For example, base station 702 may configure UE 704-1 to have resources with a number of time slots limited to those aligned with the DRX enable duration of UE 704-2. Additionally or alternatively, UE 704-1 may identify configured resources with configured gaps between adjacent side-link time slot groups. For example, base station 702 may configure UE 704-1 such that the gaps between adjacent side-link time slot groups in a resource pool (e.g., for communication with UE 704-2) are greater than the maximum packet delay budget. In this way, UE 704-1 may align retransmissions using adjacent side-link time slot groups with the enable duration of UE 704-2.

[0069] As shown by reference numeral 715 in the attached figure, UE 704-1 can use a configured resource pool to communicate with UE 704-2. For example, UE 704-1 can use a resource pool aligned with the DRX enable duration of UE 704-2 to transmit information to UE 704-2. In this case, UE 704-2 can be limited to having a DRX enable duration that matches the configured resource pool, thereby enabling communication between UE 704-1 and UE 704-2 without interruption or loss of communication.

[0070] As indicated above, Figure 7 This is provided as an example. Other examples may differ from the one provided. Figure 7 The example described.

[0071] Figure 8 This is a diagram illustrating an example process 800 performed, for example, by a first UE according to this disclosure. Example process 800 is an example in which a first UE (e.g., UE 104 and other UEs described herein) performs operations associated with sidelink communication for UEs that are configured differently.

[0072] like Figure 8 As shown, in some aspects, process 800 may include: identifying a resource set for communicating with the second UE, wherein the resource set includes a subset of resources that overlap with the DRX mode activation duration of the second UE (block 810). For example, the UE (e.g., using...) Figure 9 The identification component 908 depicted herein can identify a set of resources used for communication with the second UE, wherein the set of resources includes a subset of resources that overlap with the DRX mode activation duration of the second UE, as described above.

[0073] like Figure 8 As further shown, in some aspects, process 800 may include using one or more resources from the resource set to communicate with a second UE (block 820). For example, the UE (e.g., using...) Figure 9 The receiving component 902 and / or transmitting component 904 described herein may use one or more resources in the resource set to communicate with the second UE, as described above.

[0074] 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.

[0075] In the first aspect, the resource set is a first resource set assigned for communicating with a UE using DRX mode and associated with one or more specific sub-channels, and the first UE is configured to use a second resource set assigned for communicating with a UE not using DRX mode and associated with the one or more specific sub-channels.

[0076] In the second aspect, either alone or in combination with the first aspect, the resource set is a first resource set assigned for communicating with a UE using DRX mode and associated with one or more specific sub-channels, and the second UE is configured to use the second resource set associated with the one or more specific sub-channels.

[0077] In the third aspect, either alone or in combination with one or more of the first and second aspects, the resource set has an association with a specific set of applications or services.

[0078] In the fourth aspect, either 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 the V2X service type, provider service identifier, or application identifier.

[0079] In the fifth aspect, the second UE is configured to use the resource set, either alone or in combination with one or more of the first to fourth aspects.

[0080] In the sixth aspect, either alone or in combination with one or more of the first to fourth aspects, the second UE is not configured to use the resource set.

[0081] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, the resource set includes only the time slots during the DRX activation period.

[0082] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the gap between the first adjacent side link time slot group and the second adjacent side link time slot group in the resource set is greater than the maximum packet delay budget for the connection to the second UE.

[0083] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the second UE is configured to have at least one DRX enable duration aligned with the resource set.

[0084] although Figure 8 An example box of process 800 is shown, but in some respects, process 800 may include... Figure 8 The boxes depicted in the diagram may be fewer, different, or arranged differently compared to additional boxes. Alternatively, two or more boxes in process 800 may be executed in parallel.

[0085] Example wireless communication device

[0086] Figure 9 This is a block diagram of an example device 900 for wireless communication. Device 900 may be a UE, or a UE may include device 900. In some aspects, device 900 includes a receiving component 902 and a transmitting component 904, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 900 may use the receiving component 902 and the transmitting component 904 to communicate with another device 906 (such as a UE, a base station, or another wireless communication device). As further shown, device 900 may include an identification component 908 and other examples.

[0087] In some respects, the 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 Figure 8 Process 800, etc. In some aspects, device 900 and / or Figure 9 One or more components shown may include the above combination Figure 2 One or more components of the described UE. Additionally or alternatively, Figure 9 One or more components shown can be combined as described above. Figure 2Implementation within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially 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 may be executed by a controller or processor to perform the function or operation of that component.

[0088] Receiver 902 may receive communications (such as reference signals, control information, data communications, or combinations thereof) from device 906. Receiver 902 may provide the received communications to one or more other components of device 900. In some aspects, receiver 902 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.), and may provide the processed signal to one or more other components of device 906. In some aspects, receiver 902 may include combinations of the above. Figure 2 The described UE includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0089] The transmission component 904 can transmit communications (such as reference signals, control information, data communications, or combinations thereof) to the device 906. In some aspects, one or more other components of the device 906 can generate communications and provide the generated communications to the transmission component 904 for transmission to the device 906. In some aspects, the transmission component 904 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and can transmit the processed signals to the device 906. In some aspects, the transmission component 904 can include combinations of the above. Figure 2 The described UE includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 904 may be co-located with the receive component 902 in a transceiver.

[0090] Identification component 908 can identify a set of resources used for communicating with device 906, wherein the set of resources includes a subset of resources that overlap with the DRX mode activation duration of device 906. Receiving component 902 and / or transmitting component 904 can use one or more resources in this set of resources to communicate with device 906.

[0091] Figure 9 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 9 The components shown are compared to additional components, fewer components, different components, or components arranged differently. Furthermore, Figure 9The two or more components shown can be implemented within a single component, or Figure 9 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 9 The component collection (one or more components) shown in the diagram can be executed as described by... Figure 9 The other set of components shown in the diagram performs one or more functions.

[0092] Figure 10 The description includes operations that can be operated for, configured for, or adapted to perform the techniques disclosed herein (such as referencing...). Figure 7-8 Example communication device 1000 (depicting and describing the operation) includes various components. In some examples, communication device 1000 may be base station 102, for example, see reference to Figure 1 and Figure 2 The described base station 102.

[0093] Communication device 1000 includes a processing system 1002 operatively coupled to transceiver 1008 (e.g., transmitter and / or receiver). Transceiver 1008 is configured to transmit (or send) and receive signals (such as the various signals described herein) for communication device 1000 via antenna 1010. Processing system 1002 may be configured to perform processing functions for communication device 1000, including processing signals received and / or to be transmitted by communication device 1000.

[0094] Processing system 1002 includes one or more processors 1020 operatively coupled to computer-readable medium / memory 1030 via bus 1006. In some 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. Figure 7-8 The operations described herein or other operations used to perform the various techniques described herein for sidelink communication of UEs in different configurations.

[0095] 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 using one or more resources in the set of resources to communicate with the second UE.

[0096] In the depicted example, one or more processors 1020 include circuitry configured to implement code stored in computer-readable medium / memory 1030, including: circuitry 1021 for identifying a set of resources for communicating with the second UE and circuitry 1022 for using one or more resources in the set of resources to communicate with the second UE.

[0097] Various components of the communication device 1000 can provide for performing the methods described herein (including references) Figure 7-8 ) device.

[0098] In some examples, the means for identifying a set of resources for communicating with the second UE and the means for using one or more resources in the resource set to communicate with the second UE may include various processing system components, such as Figure 10 One or more processors 1020, or Figure 2 The various aspects of UE 104 depicted include receive processor 258, transmit processor 264, transmit (TX) MIMO processor 266 and / or controller / processor 280 (including resource management component 281).

[0099] It is worth noting that, Figure 10 This is one example, and many other examples and configurations of the communication device 1000 are possible.

[0100] Example

[0101] The following provides an overview of the various aspects of this disclosure:

[0102] Aspect 1: A wireless communication method performed by a UE, comprising: identifying a resource set for communicating with a second UE, wherein the resource set includes a subset of resources that overlap with the discontinuous reception (DRX) mode activation duration of the second UE; and using one or more resources in the resource set to communicate with the second UE.

[0103] Aspect 2: The method of aspect 1, wherein the resource set is a first resource set assigned for communicating with a UE using DRX mode and associated with one or more sub-channels, and wherein the first UE is configured to use a second resource set assigned for communicating with a UE not using DRX mode and associated with the one or more sub-channels.

[0104] Aspect 3: The method as described in any of Aspects 1 to 2, wherein the resource set is a first resource set assigned for communicating with a UE using DRX mode and associated with one or more sub-channels, and

[0105] The second UE is configured to use a second resource set associated with the one or more sub-channels.

[0106] Aspect 4: The method as described in any of Aspects 1 to 3, wherein the resource set has an association with a set of applications or services.

[0107] Aspect 5: The method as described in any of Aspects 1 to 4, wherein the association is based at least in part on at least one of the following: a vehicle-to-everything (V2X) service type, a provider service identifier, or an application identifier.

[0108] Aspect 6: The method as described in any of Aspects 1 to 5, wherein the second UE is configured to use the resource set.

[0109] Aspect 7: The method as described in any of Aspects 1 to 5, wherein the second UE is not configured to use the resource set.

[0110] Aspect 8: The method as described in any of Aspects 1 to 7, wherein the resource set includes only the time slots during which the DRX is enabled.

[0111] Aspect 9: The method of any one of Aspects 1 to 8, wherein the gap between the first adjacent side link time slot group and the second adjacent side link time slot group in the resource set is greater than the maximum packet delay budget for the connection with the second UE.

[0112] Aspect 10: The method of any one of Aspects 1 to 9, wherein the second UE is configured to have at least one DRX enable duration aligned with the resource set.

[0113] 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 methods as described in one or more aspects of Aspects 1-10.

[0114] 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 being configured to perform methods as described in one or more aspects of aspects 1-10.

[0115] Aspect 13: An apparatus for wireless communication, comprising: at least one means for performing a method as described in one or more aspects of aspects 1-10.

[0116] Aspect 14: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform methods as described in one or more aspects of aspects 1-10.

[0117] Aspect 15: A non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions which, when executed by one or more processors of a device, cause the device to perform methods as described in one or more aspects of aspects 1-10.

[0118] The foregoing disclosure provides explanations and descriptions, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the foregoing disclosure or may be obtained through practice.

[0119] 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 broadly interpreted as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and / or functions, whether referred to as "software," "firmware," "middleware," "microcode," "hardware description language," or other terms. 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 can be implemented in various forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limited in any way. Therefore, the operation and behavior of these systems and / or methods are described herein without reference to any specific software code, as those skilled in the art will understand that the software and hardware can be designed to implement these systems and / or methods, at least in part, based on the description herein.

[0120] As used in this article, depending on the context, "meeting the threshold" can mean a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0121] Although specific combinations of features are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of aspects. Many of these features may be combined in ways not specifically described in the claims and / or disclosed in the specification. The disclosure of aspects includes each dependent claim in combination with each other claim in the claim set. As used herein, the phrase “at least one of” refers to any combination of these items, including a single member. As an example, “at least one of a, b, or c” is intended to cover: 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).

[0122] The elements, actions, or instructions used herein should not be construed as critical or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “a certain” are intended to include one or more items and may be used interchangeably with “one or more.” Additionally, 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.” In cases where only one item is intended, the phrase “only one” or similar language is used. Moreover, as used herein, the terms “have,” “contain,” “include,” etc., are intended to be open-ended terms that do not limit the elements they modify (e.g., the element “has” A may also have B). Furthermore, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Moreover, as used herein, the term “or” is intended to be inclusive when used in a sequence and may be used interchangeably with “and / or” unless otherwise explicitly stated (e.g., in combination with “either of” or “only one of”).

Claims

1. A first user equipment (UE) configured for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, the memory and the one or more processors being configured to cause the first UE to: Identify a set of resources for communicating with a second UE, wherein the set of resources includes a subset of resources that overlap with the discontinuous reception (DRX) mode activation duration of the second UE, wherein the first UE is configured by the network node to have resources limited to the number of time slots aligned with the DRX mode activation duration of the second UE, or the first UE can identify configured resources with configured gaps between adjacent link time slot groups. as well as Use one or more resources from the resource set to communicate with the second UE.

2. The first UE as claimed in claim 1, wherein the resource set is a first resource set assigned for communicating with a UE using DRX mode and associated with one or more sub-channels, and The first UE is configured to use a second set of resources assigned for communicating with UEs not using DRX mode and associated with the one or more sub-channels.

3. The first UE as claimed in claim 1, wherein the resource set is a first resource set assigned for communicating with a UE using DRX mode and associated with one or more sub-channels, and The second UE is configured to use a second resource set associated with the one or more sub-channels.

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

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

6. The first UE as claimed in claim 1, wherein the second UE is configured to use the resource set.

7. The first UE as claimed in claim 1, wherein the second UE is not configured to use the resource set.

8. The first UE as claimed in claim 1, wherein the resource set includes only the time slots during which the DRX is enabled.

9. The first UE as claimed in claim 1, wherein the gap between the first adjacent side link timeslot group in the resource set and the second adjacent side link timeslot group in the resource set is greater than the maximum packet delay budget for the connection with the second UE.

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

11. A wireless communication method performed by a first user equipment (UE), comprising: Identify a set of resources for communicating with a second UE, wherein the set of resources includes a subset of resources that overlap with the discontinuous reception (DRX) mode activation duration of the second UE, wherein the first UE is configured to have resources limited to the number of time slots aligned with the DRX mode activation duration of the second UE, or the first UE can identify configured resources with configured gaps between adjacent side link time slot groups. as well as Use one or more resources from the resource set to communicate with the second UE.

12. The method of claim 11, wherein the resource set is a first resource set assigned for communicating with a UE using DRX mode and associated with one or more sub-channels, and The first UE is configured to use a second set of resources assigned for communicating with UEs not using DRX mode and associated with the one or more sub-channels.

13. The method of claim 11, wherein the resource set is a first resource set assigned for communicating with a UE using DRX mode and associated with one or more sub-channels, and The second UE is configured to use a second resource set associated with the one or more sub-channels.

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

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

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

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

18. The method of claim 11, wherein the resource set includes only the time slots during which the DRX is enabled.

19. The method of claim 11, wherein the gap between the first adjacent side link time slot group and the second adjacent side link time slot group in the resource set is greater than the maximum packet delay budget for the connection with the second UE.

20. A non-transient computer-readable medium storing an instruction set for wireless communication, the instruction set comprising: One or more instructions, which, when executed by one or more processors of a first user equipment (UE), cause the first UE to: Identify a set of resources for communicating with a second UE, wherein the set of resources includes a subset of resources that overlap with the discontinuous reception (DRX) mode activation duration of the second UE, wherein the first UE is configured to have resources limited to the number of time slots aligned with the DRX mode activation duration of the second UE, or the first UE can identify configured resources with configured gaps between adjacent side link time slot groups. as well as Use one or more resources from the resource set to communicate with the second UE.

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