UU hibernation and sidelink transmission permission

Abstract

This disclosure relates to sidelink carrier aggregation and includes methods and apparatus for performing the following operations: receiving from a network entity a configuration indicating a subset of Uu component carriers (CCs) among a plurality of Uu component carriers (CCs); receiving downlink control information (DCI) from the network entity via the Uu CC subset based on the received configuration, wherein the DCI schedules sidelink transmissions for a first UE via the plurality of sidelink CCs; and communicating with a second user equipment (UE) on the sidelink CC subset based on the DCI.

Description

[0001] This application is a divisional application of the application filed on September 22, 2021, with application number 202180062818.4 and entitled "UU hibernation and sidelink transmission permission". Cross-reference to related applications

[0002] This application claims the benefit of U.S. Provisional Application No. 63 / 081,878, filed September 22, 2020, entitled “UU DORMANCY AND SIDELINK TRANSMISSION GRANT,” and U.S. Non-Provisional Application No. 17 / 480,978, filed September 22, 2021, entitled “UU DORMANCY AND SIDELINK TRANSMISSION GRANT,” which have been assigned to the assignee of this application and are expressly incorporated herein by reference. Technical Field

[0003] In summary, this disclosure relates to communication systems, and more specifically, to enhancements to sidelink carrier aggregation. Background Technology

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that enable communication with multiple users by sharing available system resources. Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems.

[0005] These 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. An example telecommunications standard is 5G New Radio (NR). 5G NR is part of the continuous evolution of mobile broadband released by the 3rd Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with the Internet of Things (IoT),) and other requirements. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), and ultra-reliable low-latency communications (URLLC). Some aspects of 5G NR can be based on the 4G Long Term Evolution (LTE) standard. There is a need for further improvements to 5G NR technology. These improvements can also be applied to other multiple access technologies and telecommunications standards that adopt them.

[0006] Some wireless communication networks include device-to-device (D2D) communication, such as, but not limited to, vehicle-based communication devices that can communicate according to: vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I) (e.g., from a vehicle-based communication device to a road infrastructure node), vehicle-to-network (V2N) (e.g., from a vehicle-based communication device to one or more network nodes such as a base station), combinations thereof, and / or combinations with other devices, which can be collectively referred to as vehicle-to-everything (V2X) communication. Further improvements in multiple access and D2D technologies are expected. Summary of the Invention

[0007] The following provides a brief overview of one or more aspects to offer a basic understanding of such aspects. This overview is not a comprehensive summary of all anticipated aspects, nor is it intended to identify key or important elements of all aspects, nor to depict the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that follows.

[0008] According to one example, a method for wireless communication at a first user equipment (UE) includes: receiving from a network entity a configuration indicating a subset of Uu component carriers (CCs) among a plurality of Uu component carriers (CCs); receiving downlink control information (DCI) from the network entity via the Uu CC subset based on the received configuration, wherein the DCI schedules sidelink transmissions for the first UE via the plurality of sidelink CCs; and communicating with a second UE on the subset of sidelink CCs among the plurality of sidelink CCs based on the DCI.

[0009] In another example, an apparatus for wireless communication at a first UE is provided, comprising: a transceiver; a memory configured to store instructions; and one or more processors communicatively coupled to the transceiver and the memory. The one or more processors are configured to execute instructions to: receive from a network entity a configuration indicating a subset of Uu CCs among a plurality of Uu CCs; receive a Direct Access Code (DCI) from the network entity via the Uu CC subset based on the received configuration, wherein the DCI schedules sidelink transmissions for the first UE via the plurality of sidelink CCs; and communicate with a second UE on the subset of sidelink CCs among the plurality of sidelink CCs based on the DCI.

[0010] In another aspect, an apparatus for wireless communication at a first UE is provided, comprising: a unit for receiving from a network entity a configuration indicating a subset of Uu CCs among a plurality of Uu CCs; a unit for receiving a DCI from the network entity via the Uu CC subset based on the received configuration, wherein the DCI schedules sidelink transmissions for the first UE via the plurality of sidelink CCs; and a unit for communicating with a second UE on the subset of sidelink CCs among the plurality of sidelink CCs based on the DCI.

[0011] In another aspect, a non-transitory computer-readable medium is provided at the first UE, comprising code executable by one or more processors to perform the following operations: receiving from a network entity a configuration indicating a subset of Uu CCs among a plurality of Uu CCs; receiving a DCI from the network entity via the Uu CC subset based on the received configuration, wherein the DCI schedules sidelink transmissions for the first UE via the plurality of sidelink CCs; and communicating with a second UE on the subset of sidelink CCs among the plurality of sidelink CCs based on the DCI.

[0012] Another example implementation includes a method for wireless communication at a network entity, comprising: determining a configuration indicating a subset of UuCCs among a plurality of UuCCs; transmitting the configuration to a first UE, wherein the first UE is configured to communicate via a side link with a second UE; and transmitting a DCI to the first UE in the subset of UuCCs in response to transmitting the configuration.

[0013] In another example, an apparatus for wireless communication at a network entity is provided, comprising: a transceiver; a memory configured to store instructions; and one or more processors communicatively coupled to the transceiver and the memory. The one or more processors are configured to execute instructions to: determine a configuration indicating a subset of UuCCs among a plurality of UuCCs; transmit the configuration to a first UE, wherein the first UE is configured to communicate via a sidelink with a second UE; and, in response to transmitting the configuration, transmit a DCI to the first UE within the UuCC subset.

[0014] In another aspect, an apparatus for wireless communication at a network entity is provided, comprising: a unit for determining a configuration indicating a subset of Uu CCs among a plurality of Uu CCs; transmitting a configuration to a first UE, wherein the first UE is configured to communicate via a side link with a second UE; and a unit for transmitting a DCI to the first UE in the subset of Uu CCs in response to transmitting the configuration.

[0015] In another aspect, a non-transitory computer-readable medium is provided at a network entity, comprising code executable by one or more processors to: determine a configuration indicating a subset of Uu CCs among a plurality of Uu CCs; transmit the configuration to a first UE, wherein the first UE is configured to communicate via a side link with a second UE; and, in response to transmitting the configuration, transmit a DCI to the first UE within the subset of Uu CCs.

[0016] Another example implementation includes a method for wireless communication at a first UE, comprising: determining a sidelink CC to be associated with a non-dormant Uu CC in a subset of Uu CCs, wherein the subset of Uu CCs corresponds to a portion of Uu CCs from a network entity receiving a Mode 1 transmission permission for a sidelink CC between the first UE and a second UE; and communicating with the second UE on the sidelink CC associated with the non-dormant Uu CC in the subset of Uu CCs.

[0017] In another example, an apparatus for wireless communication at a first UE is provided, comprising: a transceiver; a memory configured to store instructions; and one or more processors communicatively coupled to the transceiver and the memory. The one or more processors are configured to execute instructions to: determine a sidelink CC to be associated with a non-dormant Uu CC in a subset of Uu CCs, wherein the subset of Uu CCs corresponds to a portion of a plurality of Uu CCs from a network entity receiving a portion of Uu CCs for a sidelink CC between the first UE and a second UE; and communicate with the second UE on the sidelink CC associated with the non-dormant Uu CC in the subset of Uu CCs.

[0018] In another aspect, an apparatus for wireless communication at a first UE is provided, comprising: a unit for determining a sidelink CC to be associated with a non-dormant Uu CC in a subset of Uu CCs, wherein the subset of Uu CCs corresponds to a portion of Uu CCs from a plurality of Uu CCs that receive mode 1 transmission permission from a network entity for a sidelink CC between the first UE and a second UE; and a unit for communicating with the second UE on the sidelink CC associated with the non-dormant Uu CC in the subset of Uu CCs.

[0019] In another aspect, a non-transitory computer-readable medium including code is provided at the first UE, the code being executable by one or more processors to: determine a sidelink CC to be associated with a non-dormant Uu CC in a subset of Uu CCs, wherein the subset of Uu CCs corresponds to a portion of Uu CCs from a network entity receiving a Mode 1 transmission permission for a sidelink CC between the first UE and the second UE; and communicate with the second UE on the sidelink CC associated with the non-dormant Uu CC in the subset of Uu CCs.

[0020] Another example implementation includes a method for communication at a network entity, the method comprising: determining whether one or more Uu CCs in a subset of Uu CCs are in a dormant state, wherein the subset of Uu CCs corresponds to a Mode 1 transmission permitted CC for a sidelink CC between a first UE and a second UE transmitted from the network entity; and configuring the sidelink CC to associate with a non-dormant Uu CC in the subset of Uu CCs based on the determination that one or more Uu CCs in the subset of Uu CCs are in a dormant state.

[0021] In another example, an apparatus for wireless communication at a network entity is provided, the apparatus comprising: a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the transceiver and the memory. The one or more processors are configured to execute instructions to: determine whether one or more Uu CCs in a subset of Uu CCs are in a dormant state, wherein the subset of Uu CCs corresponds to a Mode 1 transmission-permitted CC transmitted from the network entity for a sidelink CC between a first UE and a second UE; and, based on the determination that one or more Uu CCs in the subset of Uu CCs are in a dormant state, configure the sidelink CCs to associate with non-dormant Uu CCs in the subset of Uu CCs.

[0022] In another aspect, an apparatus for wireless communication at a network entity is provided, the apparatus comprising: a unit for determining whether one or more Uu CCs in a subset of Uu CCs are in a dormant state, wherein the subset of Uu CCs corresponds to a Mode 1 transmission permitted CC for a sidelink CC between a first UE and a second UE transmitted from the network entity; and a unit for configuring a sidelink CC to associate with a non-dormant Uu CC in the subset of Uu CCs based on the determination that one or more Uu CCs in the subset of Uu CCs are in a dormant state.

[0023] On the other hand, a non-transitory computer-readable medium including code is provided at the network entity, the code being executable by one or more processors to perform the following operations: determining whether one or more Uu CCs in a subset of Uu CCs are in a dormant state, wherein the subset of Uu CCs corresponds to a Mode 1 transmission permitted CC for a sidelink CC between a first UE and a second UE transmitted from the network entity; and configuring the sidelink CC to associate with a non-dormant Uu CC in the subset of Uu CCs based on the determination that one or more Uu CCs in the subset of Uu CCs are in a dormant state.

[0024] To achieve the foregoing and related objectives, one or more aspects include the features fully described below and specifically pointed out in the claims. Certain illustrative features of one or more aspects are set forth in detail in the following description and accompanying drawings. However, these features may be indicated in only some of the various ways in which they adopt the principles of the aspects, and this specification is intended to include all such aspects and their equivalents. Attached Figure Description

[0025] Figure 1 This is a schematic diagram illustrating examples of wireless communication systems and access networks according to one or more aspects of this disclosure.

[0026] Figure 2A , 2B 2C and 2D are, respectively, one or more aspects of this disclosure for use in Figure 1 A schematic diagram illustrating an example of communication between two communication nodes in a system, including the first 5G / NR frame, the DL channel within the 5G / NR subframe, the second 5G / NR frame, and the UL channel within the 5G / NR subframe.

[0027] Figure 3 It is for the purpose of using one or more aspects of this disclosure in Figure 1 A schematic diagram of an example frame structure and resources for side link communication between two communication nodes in a system.

[0028] Figure 4 Based on one or more aspects of this disclosure Figure 1 A schematic diagram illustrating an example of the hardware components of two communication nodes in a system.

[0029] Figure 5 It is possible based on one or more aspects of this disclosure. Figure 1 A schematic diagram illustrating an example of a sidelink communication configuration operating in the system.

[0030] Figure 6 This is a schematic diagram illustrating the determination of Uu component carrier sleep mode based on one or more aspects of this disclosure.

[0031] Figure 7 It is possible based on one or more aspects of this disclosure. Figure 1 A flowchart of another example method for wireless communication of the first UE operating in the system.

[0032] Figure 8 It is possible based on one or more aspects of this disclosure. Figure 1 The flowchart shows another example method for wireless communication of network entities operating in the system.

[0033] Figure 9 It is possible based on one or more aspects of this disclosure. Figure 1 The flowchart shows another example method for wireless communication of network entities operating in the system.

[0034] Figure 10 It is possible based on one or more aspects of this disclosure. Figure 1 The flowchart shows another example method of wireless communication for a UE operating in the system.

[0035] Figure 11 This is a block diagram of an example UE based on various aspects of this disclosure.

[0036] Figure 12 This is a block diagram of an example base station based on various aspects of this disclosure. Detailed Implementation

[0037] The specific embodiments described below with reference to the accompanying drawings are intended as descriptions of various configurations and are not intended to represent only configurations in which the concepts described herein can be practiced. For the purpose of providing a full understanding of the various concepts, the specific embodiments include particular details. However, it will be apparent to those skilled in the art that these concepts can be practiced without these particular details. In some instances, well-known structures and components are shown in block diagram form to avoid obscuring such concepts.

[0038] This disclosure generally relates to sidelink communications, including communication by a user equipment (UE) from a base station via a sidelink to a second UE or from a second UE to a base station via that UE. The sidelink may include a Physical Sidelink Shared Channel (PSSCH) and a Physical Sidelink Control Channel (PSCCH). The PSSCH may carry sidelink data between a first UE and a second UE. In one example, the first UE may be a relay UE, and the second UE may be a remote UE. Sidelink transmissions can be defined as a one-to-many scheme, meaning that data can be received by multiple UEs belonging to a group. The PSCCH may carry sidelink control information (SCI), which may include information about resource allocation for the PSSCH.

[0039] Specifically, this disclosure relates to enhancements to sidelink communication, and in particular, to blind search for Mode 1 transmission permission and Uu sleep. For example, Uu sleep applies only to secondary cells (SCells). When a SCell transitions to a sleep bandwidth portion (BWP), all PDCCH monitoring is skipped. A sleeping SCell may receive only the Channel State Information Reference Signal (CSI RS) and maintain Automatic Gain Control (AGC). When a scheduled SCell is in sleep mode, the UE may not monitor the PDCCH for that SCell, such as for cross-carrier scheduling. SCells may transition to sleep mode and out of sleep mode in non-overlapping sleep groups, where each sleep group is signaled by bits in the Downlink Control Information (DCI). When the DCI bits indicate a transition out of sleep mode, the SCell transitions to the default first non-sleeping BWP. The UE may stop any uplink transmissions, suspend any configured uplink permission type 1, and clear any configured uplink permission type 2 configured in a sleeping SCell. Furthermore, in some instances, probe reference signal (SRS) transmission is not supported, including aperiodic SRS, semi-periodic SRS, and periodic SRS.

[0040] In one aspect, for sidelink communication in Mode 1, a network entity (e.g., gNodeB) schedules sidelink transmissions between a first UE and a second UE. For example, the network entity sends DCI 3_0 with resource allocation to the sidelink transmitting UE for sidelink transmission. The sidelink transmitting UE sends sidelink control information 1 (SCI1) and SCI2 (PSCCH / PSSCH) to the sidelink receiving UE. SCI1 / SCI2 may include information about the sidelink transmission, including information and transmission parameters.

[0041] In one aspect, the sidelink UE can use carrier aggregation with multiple sidelink component carriers. In the case of multiple sidelink CCs, the number of DCI 3_0s to be monitored by the sidelink UE increases. For example, allowing the UE to search for DCI 3_0 for any sidelink CC across all Uu CCs may lead to increased monitoring overhead on the UE. Furthermore, the amount of different sized DCIs that can be transmitted per Uu CC is limited.

[0042] Therefore, this disclosure mitigates the implementation complexity and potential negative impacts of blind searches for UEs requiring an increased number of blind searches for DCI 3_0 by dynamically adapting the blind search. Specifically, this disclosure relates to determining the subset of CCs for which blind searches should be performed and the dynamic adaptability of sleep time for Uu CCs.

[0043] In one aspect, this disclosure provides apparatus and methods for performing: receiving from a network entity a configuration indicating a subset of Uu CCs among a plurality of Uu CCs; receiving a DCI from the network entity via the Uu CC subset based on the received configuration, wherein the DCI schedules sidelink transmissions for a first UE via the plurality of sidelink CCs; and communicating with a second UE on the subset of sidelink CCs among the plurality of sidelink CCs based on the DCI.

[0044] In one aspect, this disclosure provides apparatus and methods for performing the following operations: determining a configuration indicating a subset of UuCCs among a plurality of UuCCs; sending the configuration to a first UE, wherein the first UE is configured to communicate via a side link with a second UE; and sending a DCI to the first UE in the UuCC subset in response to sending the configuration.

[0045] In one aspect, this disclosure provides apparatus and methods for performing the following operations: determining a sidelink CC to be associated with a non-dormant Uu CC in a subset of Uu CCs, wherein the subset of Uu CCs corresponds to a CC that is permitted to transmit in Mode 1 from a network entity for a sidelink CC between a first UE and a second UE; and communicating with the second UE on the sidelink CC associated with the non-dormant Uu CC in the subset of Uu CCs.

[0046] In one aspect, this disclosure provides apparatus and methods for performing the following operations: determining whether one or more Uu CCs in a subset of Uu CCs are in a dormant state, wherein the subset of Uu CCs corresponds to a portion of Uu CCs among a plurality of Uu CCs that are permitted to transmit in Mode 1 from a network entity for a sidelink CC between a first UE and a second UE; and configuring a sidelink CC to associate with a non-dormant Uu CC in the subset of Uu CCs based on the determination that one or more Uu CCs in the subset of Uu CCs are in a dormant state. The following is related to... Figure 1-12 These and other features of this disclosure will be discussed in detail.

[0047] Several aspects of a telecommunications system will now be described with reference to various apparatuses and methods. These apparatuses and methods will be described in detail below and illustrated in the accompanying drawings in the form of various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as “elements”). These elements can be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the system as a whole.

[0048] By way of example, an element, or any part of an element, or any combination of elements, can be implemented as a “processing system” including one or more processors. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, system-on-a-chip (SoCs), baseband processors, field-programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform the various functions described herein. One or more processors in a processing system can execute software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, software can be broadly interpreted to mean instructions, instruction sets, code, code segments, program code, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc.

[0049] Accordingly, in one or more example embodiments, the described functionality may be implemented in hardware, software, or any combination thereof. If implemented in software, the functionality may be stored or encoded as one or more instructions or code on a computer-readable medium. A computer-readable medium includes a computer storage medium. The storage medium may be any available medium accessible by a computer. By way of example, and not limitation, such a computer-readable medium may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of computer-readable media of the types described above, or any other medium that may be used to store computer-executable code accessible by a computer in the form of instructions or data structures.

[0050] Figure 1 This is a schematic diagram illustrating an example of a wireless communication system and access network 100. The wireless communication system (also referred to as a wireless wide area network (WWAN)) includes a base station 102, a UE 104, an evolved packet core (EPC) 160, and another core network 190 (e.g., a 5G core (5GC)).

[0051] In some aspects, UE 104b may include a communication component 121 for facilitating sidelink communication between base station 102a and UE 104a. UE 104a may have a first access link 120a directly with base station 102a, and a second communication link with base station 102a via a sidelink 158a to base station 102a, UE 104b having a second access link 120b to base station 102a. The communication component 121 of UE 104b may include a sidelink component 123, which may be selectively configured for the establishment, activation, and deactivation of sidelink carrier aggregation.

[0052] Accordingly, UE 104a can be configured to manage communication between UE 104b via side link 158a and between UE 104b and base station 102a via access link 120a.

[0053] Similarly, base station 102a may include base station communication component 127, which is configured to manage communication between UE 104b via access link 120b and UE 104a via access link 120a.

[0054] Further details of these operations performed by UE 104b, UE 104a and base station 102a are discussed below.

[0055] Base station 102 (including base station 102a) may include macro cells (high-power cellular base stations) and / or small cells (low-power cellular base stations). Macro cells include base stations. Small cells include femtocells, picocells, and microcells.

[0056] Base station 102 configured for 4G LTE (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can interface with EPC 160 via backhaul link 132 (e.g., S1 interface). Base station 102 configured for 5G NR (collectively referred to as Next Generation RAN (NG-RAN)) can interface with 5G core network 190 via backhaul link 184. Among other functions, base station 102 can also perform one or more of the following functions: transmission of user data, radio channel encryption and decryption, 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), user and device tracking, RAN information management (RIM), paging, location, and delivery of warning messages. Base stations 102 can communicate with each other directly or indirectly (e.g., via EPC 160 or core network 190) via backhaul link 134 (e.g., X2 interface). Backhaul link 134 can be wired or wireless.

[0057] Base station 102 can wirelessly communicate with UE 104 (including UE 104b and UE 104a). Each base station 102 in the base station 102 can provide communication coverage for a corresponding geographic coverage area 110. Overlapping geographic coverage areas 110 may exist. For example, small cell 102' may have a coverage area 110' that overlaps with the coverage areas 110 of one or more macro base stations 102. A network that includes both small cells and macro cells can be referred to as a heterogeneous network. The heterogeneous network may also include a Home Evolved Node B (eNB) (HeNB), which can provide services to restricted groups referred to as Closed Subscriber Groups (CSGs). The communication link 120 (including access links 120a and 120b) between base station 102 and UE 104 may include uplink (UL) (also referred to as reverse link) transmissions from UE 104 to base station 102 and / or downlink (DL) (also referred to as forward link) transmissions from base station 102 to UE 104. Communication link 120 may use multiple-input multiple-output (MIMO) antenna techniques, including spatial multiplexing, beamforming, and / or transmit diversity. The communication link may be via one or more carriers. Base station 102 / UE 104 may use a total of up to [number missing] for transmission in each direction. Yx MHz ( x In carrier aggregation (of component carriers), the allocation per carrier is up to [number] Y A spectrum with a bandwidth of MHz (e.g., 5, 10, 15, 20, 100, 400 MHz, etc.). Carriers may be adjacent to each other or may not be adjacent to each other. Carrier allocation may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated to DL compared to UL). Component carriers may include primary component carriers and one or more secondary component carriers. The primary component carrier may be referred to as the primary cell (PCell), and the secondary component carrier may be referred to as the secondary cell (SCell).

[0058] Some UEs 104 (such as UE 104a and UE 104b) can communicate with each other using device-to-device (D2D) communication links 158 (one example including side link 158a). D2D communication links 158 can use DL / UL WWAN spectrum. D2D communication links 158 can use one or more side link channels, such as the Physical Side Link Broadcast Channel (PSBCH), Physical Side Link Discovery Channel (PSDCH), Physical Side Link Shared Channel (PSSCH), and Physical Side Link Control Channel (PSCCH). D2D communication can be achieved through a wide variety of wireless D2D communication systems, such as FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the IEEE 802.11 standard, LTE, or NR.

[0059] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in the 5 GHz unlicensed spectrum. When communicating in the unlicensed spectrum, the STA 152 / AP 150 may perform a free channel assessment (CCA) before communication to determine whether the channel is available.

[0060] Small cell 102' can operate in licensed and / or unlicensed spectrum. When operating in unlicensed spectrum, small cell 102' can employ NR and use the same 5 GHz unlicensed spectrum as that used by Wi-Fi AP 150. Small cell 102' employing NR in unlicensed spectrum can improve the coverage and / or increase the capacity of the access network.

[0061] Base station 102 (whether it is a small cell 102' or a large cell (e.g., a macro base station)) may include an eNB, a gNodeB (gNB), or another type of base station. Some base stations (such as gNB 180) may operate in conventional sub-6 GHz spectrum, millimeter wave (mmW) frequencies, and / or near-mmW frequencies to communicate with UE 104. When gNB 180 operates in mmW or near-mmW frequencies, gNB 180 may be referred to as an mmW base station. Extremely high frequency (EHF) is a portion of the RF spectrum within the electromagnetic spectrum. The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc., based on frequency / wavelength. In 5G NR, two initial operating bands have been designated as frequency range names FR1 (410 MHz - 7.125 GHz) and FR2 (24.25 GHz - 52.6 GHz). Frequencies between FR1 and FR2 are typically referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, in various documents and articles, FR1 is generally (interchangeably) referred to as the "below 6 GHz" band. Similar naming issues sometimes arise regarding FR2, which, although different from the Extreme High Frequency (EHF) band (30 GHz - 300 GHz) designated as a "millimeter wave" band by the International Telecommunication Union (ITU), is generally (interchangeably) referred to as the "millimeter wave" band in documents and articles.

[0062] In light of the above, unless otherwise specifically stated, it should be understood that when the term "below 6 GHz" is used herein, it can broadly refer to frequencies that are less than 6 GHz, within FR1, or may include intermediate frequency band frequencies. Furthermore, unless otherwise specifically stated, it should be understood that when the term "millimeter wave" is used herein, it can broadly refer to frequencies that may include intermediate frequency band frequencies, within FR2, or within the EHF band.

[0063] Base station 180 may transmit beamformed signals to UE 104 in one or more transmit directions 182'. UE 104 may receive beamformed signals from base station 180 in one or more receive directions 182''. UE 104 may also transmit beamformed signals to base station 180 in one or more transmit directions. Base station 180 may receive beamformed signals from UE 104 in one or more receive directions. Base station 180 / UE 104 may perform beam training to determine the optimal receive and transmit directions for each of base station 180 / UE 104. The transmit and receive directions for base station 180 may be the same or different. The transmit and receive directions for UE 104 may be the same or different.

[0064] EPC 160 may include Mobility Management Entity (MME) 162, other MMEs 164, Serving Gateway 166, Multimedia Broadcast Multicast Service (MBMS) Gateway 168, Broadcast Multicast Service Center (BM-SC) 170, and Packet Data Network (PDN) Gateway 172. MME 162 can communicate with Home Subscriber Server (HSS) 174. MME 162 is the control node that handles signaling between UE 104 and EPC 160. Typically, MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through Serving Gateway 166, which is itself connected to PDN Gateway 172. PDN Gateway 172 provides IP address allocation and other functions to the UE. PDN Gateway 172 and BM-SC 170 are connected to IP Service 176. IP Service 176 may include the Internet, intranet, IP Multimedia Subsystem (IMS), PS streaming service, and / or other IP services. The BM-SC 170 provides functions for MBMS user service provisioning and delivery. The BM-SC 170 can serve as an entry point for MBMS transmissions to content providers, authorize and initiate MBMS bearer services within a Public Land Mobile Network (PLMN), and schedule MBMS transmissions. The MBMS gateway 168 can distribute MBMS services to base stations 102 belonging to areas of Multicast-Broadcast Single Frequency Networks (MBSFNs) that broadcast specific services, and can be responsible for session management (start / stop) and collecting billing information related to eMBMS.

[0065] Core network 190 may include Access and Mobility Management Functions (AMF) 192, other AMFs 193, Session Management Functions (SMF) 194, and User Plane Functions (UPF) 195. AMF 192 can communicate with Unified Data Management (UDM) 196. AMF 192 is the control node that processes signaling between UE 104 and core network 190. Typically, AMF 192 provides QoS streaming and session management. All user Internet Protocol (IP) packets are transmitted through UPF 195. UPF 195 provides UE IP address allocation and other functions. UPF 195 connects to IP service 197. IP service 197 may include the Internet, intranet, IP Multimedia Subsystem (IMS), PS streaming service, and / or other IP services.

[0066] A base station may also be referred to as a gNB, Node B, Evolved Node B (eNB), access point, base transceiver, radio base station, radio transceiver, transceiver function, Basic Services Set (BSS), Extended Services Set (ESS), Transmitter Receiver Point (TRP), or some other suitable term. Base station 102 provides access to EPC 160 or core network 190 for UE 104. Examples of UE 104 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radio units, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablets, smart devices, wearable devices, vehicles, electricity meters, air pumps, large or small kitchen appliances, healthcare devices, implants, sensors / actuators, displays, or any other similarly functional devices. Some UE 104 devices may be referred to as IoT devices (e.g., parking meters, air pumps, ovens, vehicles, heart monitors, etc.). UE 104 may also be referred to as a station, mobile station, user station, mobile unit, user unit, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile user station, access terminal, mobile terminal, radio terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term.

[0067] Figure 2A-2D This includes schematic diagrams of example frame structures and resources that can be used in communication between base station 102 and UE 104 as described in this disclosure. Figure 2A This is a schematic diagram 200 showing an example of the first subframe within a 5G / NR frame structure. Figure 2B This is a schematic diagram 230 illustrating an example of a DL channel within a 5G / NR subframe. Figure 2C This is a schematic diagram 250 showing an example of a second subframe within a 5G / NR frame structure. Figure 2D This is a schematic diagram 280 illustrating an example of a UL channel within a 5G / NR subframe. The 5G / NR frame structure can be FDD (where, for a specific set of subcarriers (carrier system bandwidth), subframes within that set are dedicated to either DL or UL), or TDD (where, for a specific set of subcarriers (carrier system bandwidth), subframes within that set are dedicated to both DL and UL). In the context of... Figure 2A , 2CIn the provided example, the 5G / NR frame structure is assumed to be TDD, where subframe 4 is configured with slot format 28 (mostly DL), where D is DL, U is UL, and X is flexibly usable between DL / UL, and subframe 3 is configured with slot format 34 (mostly UL). Although subframes 3 and 4 are shown as having slot formats 34 and 28, respectively, any particular subframe can be configured with any of the various available slot formats 0-61. Slot formats 0 and 1 are full DL and full UL, respectively. Other slot formats 2-61 include a mixture of DL, UL, and flexible symbols. The UE is configured to have a slot format via the received Slot Format Indicator (SFI) (dynamically configured via DL Control Information (DCI) or semi-statically / statically configured via Radio Resource Control (RRC) signaling). Note that the following description also applies to the 5G / NR frame structure as TDD.

[0068] Other wireless communication technologies may have different frame structures and / or different channels. A frame (10 ms) can be divided into 10 equal-sized subframes (1 ms). Each subframe may include one or more time slots. Subframes may also include micro-time slots, which may include 7, 4, or 2 symbols. Each time slot may include 7 or 14 symbols, depending on the time slot configuration. For time slot configuration 0, each time slot may include 14 symbols, and for time slot configuration 1, each time slot may include 7 symbols. Symbols on the DL can be Cyclic Prefix (CP) OFDM (CP-OFDM) symbols. Symbols on the UL can be CP-OFDM symbols (for high-throughput scenarios) or Discrete Fourier Transform (DFT) Extended OFDM (DFT-s-OFDM) symbols (also known as Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols) (for power-constrained scenarios; limited to single-stream transmission). The number of time slots within a subframe is based on the time slot configuration and the numbering scheme. For slot configuration 0, different digital schemes µ 0 to 5 allow 1, 2, 4, 8, 16, and 32 slots per subframe, respectively. For slot configuration 1, different digital schemes 0 to 2 allow 2, 4, and 8 slots per subframe, respectively. Correspondingly, for slot configuration 0 and digital scheme µ, there are 14 symbols / slot and 2... µ Each time slot / subframe. Subcarrier spacing and symbol length / duration are functions of the digital scheme. Subcarrier spacing can be equal to... ,in These are digital schemes 0 through 5. Therefore, digital scheme µ=0 has a subcarrier spacing of 15 kHz, and digital scheme µ=5 has a subcarrier spacing of 480 kHz. The symbol length / duration is inversely related to the subcarrier spacing. Figure 2A-2DExamples are provided for slot configuration 0 with 14 symbols per slot and a digital scheme µ=0 with 1 slot per subframe. The subcarrier spacing is 15 kHz, and the symbol duration is approximately 66.7 kHz. µs .

[0069] A resource grid can be used to represent frame structure. Each time slot includes a resource block (RB) (also known as a physical RB (PRB)), which consists of 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0070] As in Figure 2A As shown, some of the REs carry reference (pilot) signals (RS) for the UE. The RS may include a demodulated RS (DM-RS) for channel estimation at the UE (indicated as R for a specific configuration). x (where 100x is the port number, but other DM-RS configurations are possible) and Channel State Information Reference Signal (CSI-RS). RS may also include Beam Measurement RS (BRS), Beam Refinement RS (BRRS), and Phase Tracking RS (PT-RS).

[0071] Figure 2B Examples of various DL channels within a subframe of a frame are shown. The Physical Downlink Control Channel (PDCCH) carries the DCI within one or more Control Channel Elements (CCEs), each CCE comprising nine RE Groups (REGs), each REG comprising four consecutive REs within an OFDM symbol. The Primary Synchronization Signal (PSS) may be located within symbol 2 of a specific subframe of the frame. The PSS is used by UE104 to determine subframe / symbol timing and physical layer identification. The Secondary Synchronization Signal (SSS) may be located within symbol 4 of a specific subframe of the frame. The SSS is used by the UE to determine the Physical Layer Cell Identifier Group Number and radio frame timing. Based on the Physical Layer Identifier and Physical Layer Cell Identifier Group Number, the UE can determine the Physical Cell Identifier (PCI). Based on the PCI, the UE can determine the location of the aforementioned DM-RS. The Physical Broadcast Channel (PBCH) (which carries the Master Information Block (MIB)) may logically be grouped with the PSS and SSS to form a Synchronization Signal (SS) / PBCH block. The MIB provides the number of RBs in the system bandwidth and the System Frame Number (SFN). The Physical Downlink Shared Channel (PDSCH) carries user data, broadcast system information (e.g., System Information Block (SIB)) not transmitted via the PBCH, and paging messages.

[0072] As in Figure 2CAs shown, some REs in the RE array carry DM-RS for channel estimation at the base station (indicated as R for a specific configuration, but other DM-RS configurations are possible). The UE can transmit DM-RS for the Physical Uplink Control Channel (PUCCH) and DM-RS for the Physical Uplink Shared Channel (PUSCH). The PUSCH DM-RS can be transmitted in the first one or two symbols preceding the PUSCH. The PUCCH DM-RS can be transmitted in different configurations, depending on whether a short or long PUCCH is transmitted and on the specific PUCCH format used. Although not shown, the UE can transmit a Sounding Reference Signal (SRS). The SRS can be used by the base station for channel quality estimation to enable frequency-dependent scheduling on the UL.

[0073] Figure 2D Examples of various UL channels within a subframe of a frame are shown. The PUCCH can be placed as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicators (CQI), precoding matrix indicators (PMI), rank indicators (RI), and HARQ ACK / NACK feedback. The PUSCH carries data and can also be used to carry buffer status reports (BSR), power headroom reports (PHR), and / or UCI.

[0074] Figure 3 This is a schematic diagram 300 illustrating an example of a time slot structure that can be used within a 5G / NR frame structure (e.g., for sidelink communication). This is merely an example, and other wireless communication technologies may have different frame structures and / or different channels. A frame (e.g., 10 ms) can be divided into subframes of equal size (1 ms). Each subframe may include one or more time slots. Subframes may also include micro-time slots, which may include 7, 4, or 2 symbols. Each time slot may include 7 or 14 symbols, depending on the time slot configuration. For time slot configuration 0, each time slot may include 14 symbols, and for time slot configuration 1, each time slot may include 7 symbols.

[0075] A resource grid can be used to represent the frame structure. Each time slot may include a resource block (RB) (also referred to as a physical RB (PRB)) containing 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme. Some REs may include control information (e.g., along with demodulated RS (DMRS)). The control information may include sidelink control information (SCI). In some implementations, at least one symbol at the beginning of a time slot may be used by the transmitting device to perform a listen-before-tell (LBT) operation before transmission. In some implementations, at least one symbol may be used for feedback, as described herein. In some implementations, another symbol, for example, at the end of a time slot, may be used as a gap. The gap allows the device to switch from operating as a transmitting device to preparing to operate as a receiving device (e.g., in a subsequent time slot). As shown, data can be transmitted in the remaining REs. The data may include the data messages described herein. The position of any of the SCI, feedback, and LBT symbols may differ from the position of the RE in the following document. Figure 3 The example shown. In some implementations, multiple time slots can be aggregated together, and... Figure 3 The example aggregation of two time slots should not be considered limiting, as the number of time slots aggregated can also be greater than two. When time slots are aggregated, the symbols used for feedback and / or the slot symbols may differ from those used for a single time slot.

[0076] Figure 4This is a schematic diagram of the hardware components of example transmit and / or receive (TX / RX) nodes 410 and 450, which can be any combination of base station 102-UE 104 communication and / or UE 104-UE 104 communication in system 100. For example, such communication can include, but is not limited to, communication such as a base station transmitting to a UE, a UE transmitting to a second UE, a second UE transmitting to a UE, or a UE transmitting to a base station in the access network. In a particular example, TX / RX node 410 can be an example implementation of base station 102, and TX / RX node 450 can be an example implementation of UE 104. In the DL, IP packets from EPC 160 can be provided to controller / processor 475. Controller / processor 475 implements layer 4 and layer 2 functions. Layer 4 includes the Radio Resource Control (RRC) layer, and layer 2 includes the Serving Data Adaptation Protocol (SDAP) layer, Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer, and Media Access Control (MAC) layer. The controller / processor 475 provides: RRC layer functions associated with: broadcasting system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-Radio Access Technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functions associated with: header compression / decompression, security (encryption, decryption, integrity protection, integrity verification), and handover support functions; RLC layer functions associated with: transmission of upper-layer packet data units (PDUs), error correction via ARQ, concatenation, segmentation and reassembly of RLC service data units (SDUs), resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with: mapping between logical channels and transport channels, multiplexing of MAC SDUs to transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction via HARQ, priority processing, and logical channel prioritization.

[0077] Transmit (TX) processor 416 and receive (RX) processor 470 implement Layer 1 functions associated with various signal processing functions. Layer 1, including the physical (PHY) layer, may include error detection of the transport channel, forward error correction (FEC) encoding / decoding of the transport channel, interleaving, rate matching, mapping to the physical channel, modulation / demodulation of the physical channel, and MIMO antenna processing. TX processor 416 processes the mapping to the signal constellation based on various modulation schemes, such as binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), multilevel phase shift keying (M-PSK), and multilevel quadrature amplitude modulation (M-QAM). The encoded and modulated symbols can then be divided into parallel streams. Each stream can then be mapped to OFDM subcarriers, multiplexed with a reference signal (e.g., a pilot) in the time and / or frequency domains, and then combined using an inverse fast Fourier transform (IFFT) to produce a physical channel carrying a stream of time-domain OFDM symbols. The OFDM stream is spatially precoded to generate multiple spatial streams. Channel estimates from channel estimator 474 can be used to determine coding and modulation schemes, as well as for spatial processing. The channel estimates can be derived from reference signals transmitted by tx / rx nodes 450 and / or channel condition feedback. Each spatial stream is then provided to different antennas 420 via a separate transmitter 418TX. Each transmitter 418TX can use the corresponding spatial stream to modulate an RF carrier for transmission.

[0078] At TX / RX node 450, each receiver 454RX receives a signal via its corresponding antenna 452. Each receiver 454RX recovers the information modulated onto the RF carrier and provides that information to the receive (RX) processor 456. TX processor 468 and RX processor 456 implement Layer 1 functions associated with various signal processing functions. RX processor 456 can perform spatial processing on the information to recover any spatial stream destined for TX / RX node 450. If multiple spatial streams are destined for TX / RX node 450, they can be combined by RX processor 456 into a single OFDM symbol stream. RX processor 456 then uses a Fast Fourier Transform (FFT) to transform the OFDM symbol stream from the time domain to the frequency domain. The frequency domain signal consists of a separate OFDM symbol stream for each subcarrier of the OFDM signal. Symbols and a reference signal on each subcarrier are recovered and demodulated by determining the most probable signal constellation point transmitted by TX / RX node 410. These soft decisions can be based on a channel estimate calculated by channel estimator 458. The soft decision is then decoded and de-interleaved to recover the data and control signals originally transmitted by the TX / RX node 410 on the physical channel. The data and control signals are then provided to the controller / processor 459 that implements Layer 4 and Layer 2 functions.

[0079] Controller / processor 459 may be associated with memory 460, which stores program code and data. Memory 460 may be referred to as a computer-readable medium. In UL, controller / processor 459 provides demultiplexing, packet reassembly, decryption, header decompression, and control signal processing between transport and logical channels to recover IP packets from EPC 160. Controller / processor 459 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.

[0080] Similar to the functions described in conjunction with DL transmissions performed by TX / RX node 410, controller / processor 459 provides: RRC layer functions associated with: system information (e.g., MIB, SIB) acquisition, RRC connection and measurement reporting; PDCP layer functions associated with: header compression / decompression and security (encryption, decryption, integrity protection, integrity verification); RLC layer functions associated with: transmission of upper-layer PDUs, error correction via ARQ, concatenation, segmentation and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with: mapping between logical channels and transport channels, multiplexing of MAC SDUs to TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction via HARQ, priority handling and logical channel prioritization.

[0081] The channel estimate derived by channel estimator 458 from the reference signal or feedback transmitted by TX / RX node 410 can be used by TX processor 468 to select appropriate coding and modulation schemes, as well as to facilitate spatial processing. The spatial stream generated by TX processor 468 can be provided to different antennas 452 via individual transmitters 454TX. Each transmitter 454TX can use the corresponding spatial stream to modulate the RF carrier for transmission.

[0082] At TX / RX node 410, UL transmission is handled in a manner similar to that described for the receiver functions incorporated at TX / RX node 450. Each receiver 418RX receives signals via its respective antenna 420. Each receiver 418RX recovers the information modulated onto the RF carrier and provides that information to the RX processor 470.

[0083] Controller / processor 475 may be associated with memory 476, which stores program code and data. Memory 476 may be referred to as a computer-readable medium. In UL, controller / processor 475 provides demultiplexing, packet reassembly, decryption, header decompression, and control signal processing between transport and logical channels to recover IP packets from TX / RX node 450. IP packets from controller / processor 475 may be provided to EPC 160. Controller / processor 475 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.

[0084] In one implementation, at least one of the TX processor 468, RX processor 456, and controller / processor 459 can be configured to perform operations related to... Figure 1 The aspects relating to components 121 and / or 127.

[0085] In one implementation, at least one of the TX processor 416, the RX processor 470, and the controller / processor 475 can be configured to perform operations related to... Figure 1 The aspects relating to components 121 and / or 127.

[0086] refer to Figure 5 The aspects discussed in this article generally relate to sidelink communication scenarios 500 and 550, which involve communication over a sidelink. As mentioned above, sidelink communication typically includes any type of device-to-device (D2D) communication. D2D communication can be used in applications such as, but not limited to, vehicle-to-everything (V2X) or vehicle-to-any other device type communication, sensor networks, public safety-related communication services with limited infrastructure availability, or any other such applications. In one example, a sidelink communication scenario could be sidelink relay communication.

[0087] In sidelink communication scenario 500, UE 504a can establish Uu communication with one or more base stations 102 and establish at least one indirect link via a sidelink with UE 504b. In a first case, when one or more UEs 504a and 504b are within the coverage of network entity 502, network entity 502 can configure multiple sidelink CCs for transmission and reception. Initial sidelink beam pairing can occur on a designated sidelink CC between UEs 504a and 504b. For example, a designated sidelink CC can correspond to at least one of the following: a pre-configured sidelink CC, a CC of a sidelink SSB transmitted by one of the UEs (e.g., UE 504a), or a CC of a sidelink SSB successfully received by one of the UEs (e.g., UE 504b). Additional CCs can be added based on either the network entity already knowing the capabilities of UEs 504a and 504b and configuring additional CCs based on those capabilities (e.g., the number of CCs supported by each UE 504a and 504b), or UEs 504a and 504b directly exchanging their capabilities via sidelink RRC and then sending the capabilities to network entity 502 to obtain its preferred multi-CC configuration. Accordingly, network entity 502 can configure Mode 1 permission for any sidelink CC for one or more UEs.

[0088] In one aspect of scenario 550, when one or more UEs 504a and 504b are outside the coverage of network entity 502, one or more UEs 504a and 504b perform a sidelink switch (e.g., sidelink RRC) instead of via network entity 502. Once switched, one or more UEs 504a and 504b use Mode 2 permission for any sidelink CC. In some implementations, if the first UE 504a engages in star-like topology-like behavior similar to that of the network entity, then a Mode 1-like operation may occur if the first UE 504a schedules another UE 504b.

[0089] refer to Figure 6This document typically relates to a sidelink communication scenario 600, which includes communication on sidelink component carriers. For example, in sidelink communication scenario 600, mode 1 control for sidelink CC2 is received in UuCC2. When UuCC2 goes into sleep mode, SL CC2 is associated with UuCC1 to receive mode 1 control. For each sidelink component carrier, UE 104 can determine the subset of UuCCs in which mode 1 transmission permission (e.g., any sidelink control) for a sidelink CC is granted. If an associated UuCC goes into sleep mode, a network entity (e.g., base station 102) can dynamically configure the sidelink CC to be associated with a non-sleeping Uu CC.

[0090] In one respect, the reassociation control message may be part of a Uu sleep indication (e.g., a wake-up signal or non-fallback DCI). In another respect, the reassociation control message may be sent separately from the sleep indication. For example, a DCI and / or Media Access Control (MAC) control element (CE) message may instruct the UE to reassociate all sidelink CCs currently associated with the now-sleeping Uu CC with another non-sleeping Uu CC.

[0091] In one aspect, UE 104 can be configured to associate a sidelink CC with a non-dormant Uu CC based on configuration rules. For example, UE 104 can be configured to move to the next index of the non-dormant Uu CC.

[0092] In one aspect, reassociation of a sidelink CC can only occur if all sidelink CCs currently associated with a Uu CC are dormant. For example, if Uu CC2 goes dormant, a sidelink CC can be configured to associate with both Uu CC1 and Uu CC2. The UE can receive sidelink control in Uu CC1. In one example, when a Uu CC goes dormant, one or more of the PDCCH monitoring configurations of the Uu CC are transferred to another non-dormant Uu CC via dynamic configuration or rule-based configuration.

[0093] refer to Figure 7 The example method 700 for wireless communication can be performed by UE 104b, which may include, for example, […]. Figure 1 , 4 Or one or more components discussed in section 11, and can establish, activate, and deactivate sidelink carrier aggregation, as described above regarding Figure 1-4 The subject of discussion.

[0094] At 702, method 700 includes receiving from a network entity a configuration indicating a subset of Uu CCs among a plurality of Uu CCs. For example, in one aspect, UE 104b may operate one or any combination of antenna 1165, RF front-end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, or communication component 121 in conjunction with sidelink component 123 to receive from a network entity a configuration indicating a subset of Uu CCs among a plurality of Uu CCs. Therefore, UE 104b, antenna 1165, RF front-end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, and communication component 121 may define elements for receiving the configuration indicating a subset of Uu CCs among a plurality of Uu CCs from a network entity. For example, in one aspect, UE 104b and / or communication component 121, in conjunction with sidelink component 123, may receive a signal and process that signal into a configuration, and / or perform, as described above regarding... Figure 3 Other signal processing described.

[0095] At 704, method 700 includes: receiving DCI from a network entity via a subset of UuCCs based on the received configuration, wherein the DCI is scheduled for sidelink transmissions of the first UE via a plurality of sidelink CCs. For example, in one aspect, UE 104b may operate one or any combination of antenna 1165, RF front end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, or communication component 121 in conjunction with sidelink component 123 to receive DCI from a network entity via a subset of UuCCs based on the received configuration, wherein the DCI is scheduled for sidelink transmissions of the first UE via a plurality of sidelink CCs. Therefore, UE 104b, antenna 1165, RF front-end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, and communication component 121 can define elements for receiving DCI from a network entity via a subset of Uu CCs based on the receiving configuration, wherein DCI scheduling is for sidelink transmissions of the first UE via multiple sidelink CCs. For example, in one aspect, UE 104b and / or communication component 121, in conjunction with sidelink component 123, can receive signals and process those signals into DCI, and / or perform, as described above, regarding... Figure 3 Other signal processing described.

[0096] At 706, method 700 includes: communicating with a second UE on a subset of sidelink CCs among multiple sidelink CCs based on DCI. For example, in one aspect, UE 104b may operate one or any combination of antenna 1165, RF front-end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, or communication component 121 in conjunction with sidelink component 123 to communicate with the second UE on a subset of sidelink CCs among multiple sidelink CCs based on DCI. Therefore, UE 104b, antenna 1165, RF front-end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, and communication component 121 may define elements for communicating with the second UE on a subset of sidelink CCs among multiple sidelink CCs based on DCI. For example, in one aspect, UE 104b and / or communication component 121, in conjunction with side link component 123, can process multiple signals and transmit signals to a second UE, and / or perform, as described above regarding Figure 3 Other signal processing described.

[0097] In some implementations of method 700, the communication component 121 (e.g., in conjunction with side link component 123, transceiver 1102, processor 1112, memory 1116, or modem 1140) is configured to receive DCI from network entities in a Uu CC subset, which further includes: performing a blind search process for the DCI in each Uu CC of the Uu CC subset; and identifying the DCI in the Uu CC of the CC subset based on the blind search process.

[0098] In some implementations of method 700, DCI corresponds to a Mode 1 message with resource allocation for sidelink transmission for the first UE.

[0099] In some implementations of method 700, the communication component 121 (e.g., in conjunction with sidelink component 123, transceiver 1102, processor 1112, memory 1116, or modem 1140) is configured to receive DCI from a network entity in a Uu CC subset, further comprising: receiving DCI in a Uu CC subset having resource allocation for sidelink transmission between the first UE and the second UE.

[0100] In some implementations of method 700, the communication component 121 (e.g., in conjunction with sidelink component 123, transceiver 1102, processor 1112, memory 1116, or modem 1140) is configured to communicate with the second UE on a sidelink CC subset, which further includes sending one or more sidelink control messages (SCI) to the second UE.

[0101] In some implementations of method 700, one or more SCIs include SCI1 and SCI2.

[0102] In some implementations of method 700, SCI1 and SCI2 include resource information and transmission parameters regarding sidelink transmission between the first UE and the second UE.

[0103] In some implementations of method 700, one or more SCIs correspond to the Physical Side Link Control Channel (PSCCH) and the Physical Side Link Shared Channel (PSSCH).

[0104] refer to Figure 8 The example method 800 for wireless communication can be performed by network entity 102, which may include, for example, […]. Figure 1 , 4 Or one or more components discussed in section 12, and can establish, activate and deactivate sidelink carrier aggregation, as mentioned above. Figure 1-4 The subject of discussion.

[0105] At 802, method 800 includes: determining a configuration indicating a subset of UuCCs among a plurality of UuCCs. For example, in one aspect, network entity 102 may operate one or any combination of antenna 1265, RF front-end 1288, transceiver 1202, processor 1212, memory 1216, modem 1240, or base station communication component 127 to determine a configuration indicating a subset of UuCCs among a plurality of UuCCs. Therefore, network entity 102, antenna 1265, RF front-end 1288, transceiver 1202, processor 1212, memory 1216, modem 1240, and base station communication component 127 may define units for determining a configuration indicating a subset of UuCCs among a plurality of UuCCs. For example, in one aspect, network entity 102 and / or base station communication component 127 may perform one or more determinations based on one or more processed signals, and / or perform, as described above regarding... Figure 3 Other signal processing described.

[0106] At 804, method 800 includes: sending a configuration to a first UE, wherein the first UE is configured to communicate via a sidelink with a second UE. For example, in one aspect, network entity 102 may operate one or any combination of antenna 1265, RF front-end 1288, transceiver 1202, processor 1212, memory 1216, modem 1240, or base station communication component 127 to send a configuration to the first UE 104b, wherein the first UE is configured to communicate via a sidelink with the second UE 104a. Therefore, network entity 102, antenna 1265, RF front-end 1288, transceiver 1202, processor 1212, memory 1216, modem 1240, and base station communication component 127 may define elements for sending a configuration to the first UE, wherein the first UE is configured to communicate via a sidelink with the second UE. For example, in one aspect, network entity 102 and / or base station communication component 127 can process the configuration into a signal and send the signal to the first UE 104b, and / or perform, as described above, regarding Figure 3 Other signal processing described.

[0107] At 806, method 800 includes: transmitting DCI to a first UE in a Uu CC subset in response to a transmission configuration. For example, in one aspect, network entity 102 may operate one or any combination of antenna 1265, RF front-end 1288, transceiver 1202, processor 1212, memory 1216, modem 1240, or base station communication component 127 to transmit DCI to the first UE in a Uu CC subset in response to a transmission configuration. Therefore, network entity 102, antenna 1265, RF front-end 1288, transceiver 1202, processor 1212, memory 1216, modem 1240, and base station communication component 127 may define elements for transmitting DCI to the first UE in a Uu CC subset in response to a transmission configuration. For example, in one aspect, network entity 102 and / or base station communication component 127 may process the DCI into a signal and transmit the signal to the first UE 104b, and / or perform, as described above regarding... Figure 3 Other signal processing described.

[0108] In some implementations of method 800, DCI corresponds to a Mode 1 message having resource allocation for the first UE for side link transmission with the second UE.

[0109] In some implementations of method 800, the communication component 127 (e.g., in conjunction with transceiver 1202, processor 1212, memory 1216, or modem 1240) is configured to transmit DCI to the first UE in a Uu CC subset, further comprising: transmitting DCI in the Uu CC subset with resource allocation for sidelink transmission between the first UE and the second UE.

[0110] refer to Figure 9 The example method 900 for wireless communication can be performed by UE 104b, which may include, for example, […]. Figure 1 , 4 Or one or more components discussed in section 11, and can establish, activate, and deactivate sidelink carrier aggregation, as described above regarding Figure 1-4 Described.

[0111] At 902, method 900 includes: determining a sidelink CC to be associated with a non-dormant Uu CC in a subset of Uu CCs, wherein the subset of Uu CCs corresponds to a portion of Uu CCs from a network entity receiving a Mode 1 transmission permission for a sidelink CC between a first UE and a second UE. For example, in one aspect, UE 104b may operate one or any combination of antenna 1165, RF front-end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, or communication component 121 in conjunction with sidelink component 123 to determine the sidelink CC to be associated with a non-dormant Uu CC in a subset of Uu CCs, wherein the subset of Uu CCs corresponds to a portion of Uu CCs from a network entity 102 receiving a Mode 1 transmission permission for a sidelink CC between a first UE 104b and a second UE 104a. Therefore, UE104b, antenna 1165, RF front-end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, and communication component 121 can define elements for determining the sidelink CCs to be associated with non-dormant Uu CCs in a subset of Uu CCs, wherein the subset of Uu CCs corresponds to a portion of Uu CCs that receive Mode 1 transmission permission from a network entity for a sidelink CC between the first UE and the second UE. For example, in one aspect, UE 104b and / or communication component 121, in conjunction with sidelink component 123, can perform one or more determinations based on one or more received signals, and / or perform, as described above regarding... Figure 3 Other signal processing described.

[0112] At 904, method 900 includes communicating with a second UE on a sidelink CC associated with a non-dormant Uu CC in a subset of Uu CCs. For example, in one aspect, UE 104b may operate one or any combination of antenna 1165, RF front-end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, or communication component 121 in conjunction with sidelink component 123 to communicate with the second UE 104a on a sidelink CC associated with a non-dormant Uu CC in a subset of Uu CCs. Thus, UE 104b, antenna 1165, RF front-end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, and communication component 121 may define elements for communicating with the second UE on a sidelink CC associated with a non-dormant Uu CC in a subset of Uu CCs. For example, in one aspect, UE 104b and / or communication component 121, in conjunction with sidelink component 123, can process one or more signals and / or perform, as described above, during communication with second UE 104a. Figure 3 Other signal processing described.

[0113] In some implementations of method 900, the communication component 121 (e.g., in conjunction with sidelink component 123, transceiver 1102, processor 1112, memory 1116, or modem 1140) is configured to determine the sidelink CC to be associated with the non-dormant Uu CC in the Uu CC subset, and also includes receiving a reassociation control message.

[0114] In some implementations of method 900, the communication component 121 (e.g., in conjunction with side link component 123, transceiver 1102, processor 1112, memory 1116, or modem 1140) is configured to receive reassociation control messages, further including receiving a reassociation control message with a Uu sleep indication from a network entity.

[0115] In some implementations of method 900, the Uu sleep indicator corresponds to at least one of a wake-up signal or a non-back-off DCI.

[0116] In some implementations of method 900, the communication component 121 (e.g., in conjunction with side link component 123, transceiver 1102, processor 1112, memory 1116, or modem 1140) is configured to receive reassociation control messages, further including receiving reassociation control messages from network entities separately from Uu hibernation indications.

[0117] In some implementations of method 900, the reassociation control message corresponds to at least one of the DCI or MAC CEs indicating the reassociation of all sidelink CCs associated with one or more dormant Uu CCs in the Uu CC subset with non-dormant Uu CCs in the Uu CC subset.

[0118] In some implementations of method 900, the communication component 121 (e.g., in conjunction with sidelink component 123, transceiver 1102, processor 1112, memory 1116, or modem 1140) is configured to determine the sidelink CC to be associated with the non-dormant Uu CC in the Uu CC subset, further comprising: configuring the first UE to associate the sidelink CC with the non-dormant Uu CC based on one or more parameters.

[0119] In some implementations of method 900, the communication component 121 (e.g., in conjunction with sidelink component 123, transceiver 1102, processor 1112, memory 1116, or modem 1140) is configured to determine the sidelink CCs to be associated with non-dormant Uu CCs in the Uu CC subset, further including: reassociating the sidelink CCs when all Uu CCs in one or more Uu CCs associated with the sidelink CC in the Uu CC subset are dormant.

[0120] In some implementations of method 900, one or more physical downlink control channel (PDCCH) monitoring configurations are transferred from one or more dormant Uu CCs in the Uu CC subset to non-dormant Uu CCs in the Uu CC subset.

[0121] refer to Figure 10 The example method 1000 for wireless communication can be performed by UE 104b, which may include, for example, […]. Figure 1 , 4 Or one or more components discussed in section 11, and can establish, activate, and deactivate sidelink carrier aggregation, as described above regarding Figure 1-4 The subject of discussion.

[0122] At 1002, method 1000 includes: determining whether one or more Uu CCs in a subset of Uu CCs are in a dormant state, wherein the subset of Uu CCs corresponds to a Mode 1 transmission permitted CC sent from a network entity for a sidelink CC between a first UE and a second UE. For example, in one aspect, UE 104b may operate one or any combination of antenna 1165, RF front-end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, or communication component 121 in conjunction with sidelink component 123 to determine whether one or more Uu CCs in the subset of Uu CCs are in a dormant state, wherein the subset of Uu CCs corresponds to a Mode 1 transmission permitted CC sent from a network entity for a sidelink CC between a first UE and a second UE. Therefore, UE 104b, antenna 1165, RF front-end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, and communication component 121 can define elements for determining whether one or more Uu CCs in a subset of Uu CCs are in a dormant state, wherein the subset of Uu CCs corresponds to CCs permitted by mode 1 transmission sent from the network entity for sidelink CCs between the first UE and the second UE. For example, in one aspect, network entity 102 and / or base station communication component 127 can perform one or more determinations based on processing one or more signals, and / or perform, as described above regarding... Figure 3 Other signal processing described.

[0123] At 1004, method 1000 includes: configuring a sidelink CC to associate with a non-dormant Uu CC in the Uu CC subset based on determining that one or more Uu CCs in the Uu CC subset are in a dormant state. For example, in one aspect, UE 104b may operate one or any combination of antenna 1165, RF front end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, or communication component 121 in conjunction with sidelink component 123 to configure the sidelink CC to associate with a non-dormant Uu CC in the Uu CC subset based on determining that one or more Uu CCs in the Uu CC subset are in a dormant state. Therefore, UE 104b, antenna 1165, RF front-end 1188, transceiver 1102, processor 1112, memory 1116, modem 1140, and communication component 121 can define elements for configuring a sidelink CC to associate with a non-dormant Uu CC in the Uu CC subset based on determining that one or more Uu CCs in the Uu CC subset are in a dormant state. For example, in one aspect, network entity 102 and / or base station communication component 127 can process signals to configure the CC, and / or perform, as described above, regarding Figure 3Other signal processing described.

[0124] In some implementations of method 1000, the communication component 121 (e.g., in conjunction with sidelink component 123, transceiver 1102, processor 1112, memory 1116, or modem 1140) is configured to associate the sidelink CC with a non-dormant Uu CC in the Uu CC subset, which also includes sending a reassociation control message.

[0125] In some implementations of method 1000, the communication component 121 (e.g., in conjunction with sidelink component 123, transceiver 1102, processor 1112, memory 1116, or modem 1140) is configured to send a reassociation control message, further comprising: sending a reassociation control message with a Uu sleep indication to the first UE.

[0126] In some implementations of method 1000, the Uu sleep indicator corresponds to at least one of a wake-up signal or a non-back-off DCI.

[0127] In some implementations of method 1000, the communication component 121 (e.g., in conjunction with sidelink component 123, transceiver 1102, processor 1112, memory 1116, or modem 1140) is configured to send a reassociation control message, further comprising: sending the reassociation control message separately from the Uu sleep indication to the first UE.

[0128] In some implementations of method 1000, the reassociation control message corresponds to at least one of the DCI or MAC CEs indicating the reassociation of all sidelink CCs associated with one or more dormant Uu CCs in the Uu CC subset with non-dormant Uu CCs in the Uu CC subset.

[0129] In some implementations of method 1000, the communication component 121 (e.g., in conjunction with sidelink component 123, transceiver 1102, processor 1112, memory 1116, or modem 1140) is configured to associate the sidelink CC with a non-dormant Uu CC in the Uu CC subset, further comprising: configuring the first UE to associate the sidelink CC with a non-dormant Uu CC.

[0130] In some implementations of method 1000, the communication component 121 (e.g., in conjunction with sidelink component 123, transceiver 1102, processor 1112, memory 1116, or modem 1140) is configured to associate the sidelink CC with a non-dormant Uu CC in the Uu CC subset, further comprising: reassociating the sidelink CC when all Uu CCs in one or more Uu CCs associated with the sidelink CC in the Uu CC subset are dormant.

[0131] In some implementations of method 1000, one or more PDCCH monitoring configurations are transferred from one or more dormant Uu CCs in the Uu CC subset to non-dormant Uu CCs in the Uu CC subset.

[0132] Reference Figure 11 An example of an implementation of UE 104 (including UE 104b and / or UE 104a) may include various components, some of which have been described above and are further described herein, including components such as: one or more processors 1112 and memory 1116 and transceiver 1102 communicating via one or more buses 1144, which may operate in conjunction with modem 1140 and / or communication component 121 and sidelink component 123 configured for sidelink carrier aggregation.

[0133] In one aspect, one or more processors 1112 may include a modem 1140 using one or more modem processors, and / or may be part of a modem 1140. Therefore, various functions associated with configuration component 198 may be included in the modem 1140 and / or processor 1112, and in one aspect, may be performed by a single processor, while in other aspects, different functions may be performed by a combination of two or more different processors. For example, in one aspect, one or more processors 1112 may include any one or any combination of: a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiver processor, or a transceiver processor associated with transceiver 1102. In other aspects, some features of one or more processors 1112 and / or modem 1140 associated with configuration component 198 may be performed by transceiver 1102.

[0134] Furthermore, memory 1116 may be configured to store data used herein and / or a local version of application 1175 executed by at least one processor 1112, or one or more sub-components of communication component 1142 and / or its sub-components. Memory 1116 may include any type of computer-readable medium that can be used by a computer or at least one processor 1112, such as random access memory (RAM), read-only memory (ROM), magnetic tape, magnetic disk, optical disk, volatile memory, non-volatile memory, and any combination thereof. In one aspect, for example, memory 1116 may be a non-transitory computer-readable storage medium storing one or more computer-executable codes and / or associated data, wherein the one or more computer-executable codes define one or more sub-components of communication component 121 and / or its sub-components when UE 104 operates at least one processor 1112 to execute communication component 121 and / or its sub-components.

[0135] Transceiver 1102 may include at least one receiver 1106 and at least one transmitter 1108. Receiver 1106 may include hardware for receiving data and / or processor-executable software, the code comprising instructions and stored in memory (e.g., a computer-readable medium). Receiver 1106 may be, for example, a radio frequency (RF) receiver. In one aspect, receiver 1106 may receive signals transmitted by at least one base station 102. Additionally, receiver 1106 may process such received signals and may also obtain measurements of the signals, such as, but not limited to, Ec / Io, signal-to-noise ratio (SNR), reference signal received power (RSRP), received signal strength indicator (RSSI), etc. Transmitter 1108 may include hardware for transmitting data and / or processor-executable software, the code comprising instructions and stored in memory (e.g., a computer-readable medium). Suitable examples of transmitter 1108 may include, but are not limited to, RF transmitters.

[0136] Furthermore, in one aspect, UE 104 may include an RF front-end 1188 that can operate communicatively with one or more antennas 1165 and transceiver 1102 to receive and transmit radio transmissions, such as wireless communications transmitted by at least one base station 102 or wireless communications transmitted by UE 104. The one or more antennas 1165 may include one or more antenna panels and / or subarrays, for example, that can be used for beamforming. RF front-end 1188 may be connected to one or more antennas 1165 and may include one or more low-noise amplifiers (LNAs) 1190, one or more switches 1192, one or more power amplifiers (PAs) 1198, and one or more filters 1196 for transmitting and receiving RF signals.

[0137] In one aspect, the LNA 1190 can amplify the received signal at a desired output level. In another aspect, each LNA 1190 can have a specified minimum gain value and a maximum gain value. In yet another aspect, the RF front end 1188 can use one or more switches 1192 to select a particular LNA 1190 and its specified gain value based on the desired gain value for a particular application.

[0138] Furthermore, for example, one or more PAs 1198 can be used by the RF front end 1188 to amplify the signal for RF output at a desired output power level. In one aspect, each PA 1198 may have a specified minimum gain value and a maximum gain value. In another aspect, the RF front end 1188 may use one or more switches 1192 to select a particular PA 1198 and its specified gain value based on the desired gain value for a particular application.

[0139] Furthermore, for example, one or more filters 1196 may be used by the RF front end 1188 to filter the received signal to obtain the input RF signal. Similarly, in one aspect, for example, a corresponding filter 1196 may be used to filter the output from a corresponding PA 1198 to produce an output signal for transmission. In one aspect, each filter 1196 may be connected to a specific LNA 1190 and / or PA 1198. In one aspect, the RF front end 1188 may use one or more switches 1192 to select the transmit or receive path using a specified filter 1196, LNA 1190, and / or PA 1198 based on the configuration specified by the transceiver 1102 and / or processor 1112.

[0140] Therefore, transceiver 1102 can be configured to transmit and receive wireless signals via RF front end 1188 through one or more antennas 1165. In one aspect, the transceiver can be tuned to operate at a specified frequency, enabling UE 104 to communicate with, for example, one or more base stations 102 or one or more cells associated with one or more base stations 102. In another aspect, for example, modem 1140 can configure transceiver 1102 to operate at a specified frequency and power level based on UE configuration of UE 104 and communication protocol used by modem 1140.

[0141] In one aspect, modem 1140 may be a multi-band, multi-mode modem capable of processing digital data and communicating with transceiver 1102, such that digital data is transmitted and received using transceiver 1102. In another aspect, modem 1140 may be multi-band and can be configured to support multiple frequency bands for a specific communication protocol. In another aspect, modem 1140 may be multi-mode and configured to support multiple operating networks and communication protocols. In another aspect, modem 1140 may control one or more components of UE 104 (e.g., RF front-end 1188, transceiver 1102) based on a specified modem configuration to enable the transmission and / or reception of signals from the network. In another aspect, modem configuration may be based on modem mode and frequency band in use. In yet another aspect, modem configuration may be based on UE configuration information associated with UE 104 (such as information provided by the network during cell selection and / or cell reselection).

[0142] In one aspect, processor 1112 can correspond to being combined with Figure 4 The UE describes one or more processors in the processor. Similarly, memory 1116 may correspond to the processor combined with... Figure 4 The memory described in the UE.

[0143] refer to Figure 12 In addition to components such as those described above, an example of the implementation of base station 102 (e.g., base station 102, 102a and / or 102b as described above) may include various components, some of which have already been described above, but also include components such as those described above: one or more processors 1212 and memory 1216 and transceiver 1202 communicating via one or more buses 1244, which may operate in conjunction with modem 1240 and base station communication component 127 configured to establish, activate and deactivate side-link carrier aggregation.

[0144] The transceiver 1202, receiver 1206, transmitter 1208, one or more processors 1212, memory 1216, application 1275, bus 1244, RF front end 1288, LNA 1290, switch 1292, filter 1296, PA 1298 and one or more antennas 1265 may be the same as or similar to the corresponding components of the UE 104 as described above, but may be configured for or otherwise programmed for base station operation opposite to UE operation.

[0145] In one aspect, processor 1212 can correspond to being combined with Figure 4The base station described in the text refers to one or more processors. Similarly, memory 1216 may correspond to the processors combined with... Figure 4 The memory described by the base station in the text.

[0146] The following provides an overview of examples of the contents of this disclosure:

[0147] Example 1. An apparatus for wireless communication at a first user equipment (UE), comprising: a transceiver, a memory, and one or more processors coupled to the transceiver and the memory, wherein the one or more processors and the memory are configured to: receive from a network entity a configuration indicating a subset of Uu component carriers (CCs) among a plurality of Uu component carriers (CCs); receive downlink control information (DCI) from the network entity via the Uu CC subset based on the received configuration, wherein the DCI schedules sidelink transmissions for the first UE via the plurality of sidelink CCs; and communicate with a second UE on the subset of sidelink CCs among the plurality of sidelink CCs based on the DCI.

[0148] Example 2, the apparatus according to Example 1, wherein one or more processors configured to receive DCI from a network entity in a subset of Uu CCs are further configured to: perform a blind search process for DCI in each Uu CC of the subset of Uu CCs; and identify DCI in the Uu CCs of the CC subset based on the blind search process.

[0149] Example 3, the apparatus according to Example 1, wherein the DCI corresponds to a Mode 1 message having resource allocation for sidelink transmission for a first UE.

[0150] Example 4. The apparatus according to Example 1, wherein one or more processors configured to receive DCI from a network entity in a Uu CC subset are further configured to: receive DCI having resource allocation for sidelink transmission between a first UE and a second UE in the Uu CC subset.

[0151] Example 5, the apparatus according to Example 1, wherein one or more processors configured to communicate with a second UE on a sidelink CC subset are further configured to send one or more sidelink control messages (SCI) to the second UE.

[0152] Example 6: The apparatus according to Examples 1 and 5, wherein one or more SCIs include SCI1 and SCI2.

[0153] Example 7: The apparatus according to Examples 1, 5 and 6, wherein SCI1 and SCI2 include resource information and transmission parameters regarding sidelink transmission between the first UE and the second UE.

[0154] Example 8: The apparatus according to Examples 1 and 5, wherein one or more SCIs correspond to the Physical Side Link Control Channel (PSCCH) and the Physical Side Link Shared Channel (PSSCH).

[0155] Example 9. An apparatus for wireless communication at a network entity, comprising: a transceiver, a memory, and one or more processors coupled to the transceiver and the memory, wherein the one or more processors and the memory are configured to: determine a configuration indicating a subset of Uu CCs among a plurality of Uu component carriers (CCs); transmit the configuration to a first user equipment (UE), wherein the first UE is configured to communicate on a sidelink with a second UE; and, in response to transmitting the configuration, transmit downlink control information (DCI) to the first UE in the subset of Uu CCs.

[0156] Example 10, the apparatus according to Example 9, wherein the DCI corresponds to a Mode 1 message having resource allocation for a first UE for side link transmission with a second UE.

[0157] Example 11, according to the apparatus of Example 9, wherein one or more processors configured to send a DCI to a first UE in a Uu CC subset are further configured to: send a DCI with resource allocation for sidelink transmission between the first UE and the second UE in the Uu CC subset.

[0158] Example 12. An apparatus for wireless communication at a first user equipment (UE), comprising: a transceiver, a memory, and one or more processors coupled to the transceiver and the memory, wherein the one or more processors and the memory are configured to: determine a sidelink CC to be associated with a non-dormant Uu CC in a subset of Uu component carriers (CCs), wherein the Uu CC subset corresponds to a portion of CCs from a network entity receiving a mode 1 transmission permission for a sidelink CC between a first UE and a second UE; and communicate with the second UE on the sidelink CC associated with the non-dormant Uu CC in the Uu CC subset.

[0159] Example 13, the apparatus according to Example 12, wherein one or more processors configured to determine the sidelink CCs to be associated with non-dormant Uu CCs in the Uu CC subset are further configured to receive a reassociation control message.

[0160] Example 14. The apparatus according to Examples 12 and 13, wherein one or more processors configured to receive reassociation control messages are further configured to: receive a reassociation control message with a Uu sleep indication from a network entity.

[0161] Example 15, the apparatus according to Examples 12-14, wherein the Uu sleep indication corresponds to at least one of a wake-up signal or a non-backoff downlink control information (DCI).

[0162] Example 16. The apparatus according to Examples 12 and 13, wherein one or more processors configured to receive reassociation control messages are further configured to receive reassociation control messages from network entities separately from Uu hibernation indications.

[0163] Example 17, the apparatus according to Examples 12, 13 and 16, wherein the reassociation control message corresponds to at least one of a downlink control information (DCI) or a media access control (MAC) control element (CE) indicating the reassociation of all sidelink CCs associated with one or more dormant Uu CCs in the Uu CC subset with non-dormant Uu CCs in the Uu CC subset.

[0164] Example 18, the apparatus according to Example 12, wherein one or more processors configured to determine a sidelink CC to be associated with a non-dormant Uu CC in a subset of Uu CCs are further configured to: configure a first UE to associate the sidelink CC with the non-dormant Uu CC based on one or more parameters.

[0165] Example 19. The apparatus according to Example 12, wherein one or more processors configured to determine the sidelink CCs to be associated with non-dormant Uu CCs in the Uu CC subset are further configured to re-associate the sidelink CCs when all Uu CCs in the Uu CC subset associated with the sidelink CCs are dormant.

[0166] Example 20, the apparatus according to Example 12, wherein one or more physical downlink control channel (PDCCH) monitoring configurations are transferred from one or more dormant Uu CCs in a subset of Uu CCs to non-dormant Uu CCs in a subset of Uu CCs.

[0167] Example 21. An apparatus for wireless communication at a network entity, comprising: a transceiver, a memory, and one or more processors coupled to the transceiver and the memory, wherein the one or more processors and the memory are configured to: determine whether one or more Uu CCs in a subset of Uu component carriers (CCs) are in a dormant state, wherein the subset of Uu CCs corresponds to a Mode 1 transmission permitted CC for a sidelink CC between a first user equipment (UE) and a second UE transmitted from the network entity; and configure the sidelink CCs to associate with non-dormant Uu CCs in the subset of Uu CCs based on the determination that one or more Uu CCs in the subset of Uu CCs are in a dormant state.

[0168] Example 22, the apparatus according to Example 21, wherein one or more processors configured to associate a sidelink CC with a non-dormant Uu CC in a subset of Uu CCs are further configured to send a reassociation control message.

[0169] Example 23, the apparatus according to Examples 21 and 22, wherein one or more processors configured to send a reassociation control message are further configured to send a reassociation control message with a Uu sleep indication to a first UE.

[0170] Example 24, the apparatus according to Examples 21-23, wherein the Uu sleep indication corresponds to at least one of a wake-up signal or a non-backoff downlink control information (DCI).

[0171] Example 25, the apparatus according to Examples 21 and 22, wherein one or more processors configured to send a reassociation control message are further configured to send the reassociation control message to the first UE separately from the Uu hibernation indication.

[0172] Example 26, the apparatus according to Examples 21, 22 and 25, wherein the reassociation control message corresponds to at least one of a downlink control information (DCI) or a media access control (MAC) control element (CE) indicating the reassociation of all sidelink CCs associated with one or more dormant Uu CCs in the Uu CC subset with non-dormant Uu CCs in the Uu CC subset.

[0173] Example 27. The apparatus according to Example 21, wherein one or more processors configured to associate a sidelink CC with a non-dormant Uu CC in a subset of Uu CCs are further configured to: configure a first UE to associate a sidelink CC with a non-dormant Uu CC.

[0174] Example 28. The apparatus according to Example 21, wherein one or more processors configured to associate a sidelink CC with a non-sleeping Uu CC in a subset of Uu CCs are further configured to reassociate the sidelink CC when all Uu CCs in the subset of Uu CCs associated with the sidelink CC are in a sleep state.

[0175] Example 29, the apparatus according to Example 21, wherein one or more physical downlink control channel (PDCCH) monitoring configurations are transferred from one or more dormant Uu CCs in a subset of Uu CCs to non-dormant Uu CCs in a subset of Uu CCs.

[0176] Example 30, the apparatus according to Examples 21 and 29, wherein one or more PDCCH monitoring configurations of the Uu CC are transferred to the non-dormant Uu CC via dynamic configuration or rule-based configuration.

[0177] It should be understood that the specific order or hierarchy of the blocks in the disclosed process / flowchart is illustrative of the exemplary method. It should be understood that the specific order or hierarchy of the blocks in the process / flowchart may be rearranged based on design preferences. Furthermore, some blocks may be combined or omitted. The appended method claims give the elements of each block in the illustrative order, and are not intended to limit one to the given specific order or hierarchy.

[0178] The preceding description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects. Therefore, the claims are not intended to be limited to the aspects shown herein, but are to be given the full scope consistent with the content expressed in the claims, wherein, unless expressly stated otherwise, references to elements in the singular are not intended to mean “one and only one,” but rather “one or more.” The word “exemplary” herein is used to mean “serving as an example, instance, or illustration.” Any aspect described herein as “exemplary” is not necessarily to be construed as preferred or superior to other aspects. Unless expressly stated otherwise, the term “some” refers to one or more. For example, combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B, and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof” include any combination of A, B, and / or C, and may include multiples of A, multiples of B, or multiples of C. Specifically, combinations such as "at least one of A, B, or C", "one or more of A, B, or C", "at least one of A, B, and C", "one or more of A, B, and C", and "A, B, C, or any combination thereof" can be A only, B only, C only, A and B, A and C, B and C, or A and B and C, wherein any such combination may include one or more members of A, B, or C. All structural and functional equivalents of elements throughout the various aspects described in this disclosure that are known to or will be known later by one of ordinary skill in the art are expressly incorporated herein by reference and are intended to be included in the claims. Furthermore, the disclosure herein is not intended to be offered to the public, whether or not such disclosure is expressly stated in the claims. The terms "module", "mechanism", "element", "device", etc., may not be a substitute for the term "unit". Accordingly, no claim element is to be interpreted as a functional module unless the element is expressly stated using the phrase "unit for..."

Claims

1. An apparatus for wireless communication at a first user equipment (UE), comprising: transceiver; Memory; as well as One or more processors coupled to the transceiver and the memory, wherein the one or more processors and the memory are configured to: Receive configuration from the network entity indicating a subset of Uu CCs among multiple Uu component carriers (CCs); Based on the received configuration, downlink control information (DCI) is received from the network entity via the Uu CC subset, wherein the DCI schedules sidelink transmissions of the first UE via multiple sidelink CCs; and Based on the DCI, the second UE communicates on a subset of the multiple sidelink CCs.

2. The apparatus according to claim 1, wherein, The one or more processors configured to receive the DCI from the network entity in the Uu CC subset are further configured to: A blind search process is performed for the DCI in each Uu CC subset of the Uu CC; as well as The blind search process is used to identify the DCI in the Uu CC of the CC subset.

3. The apparatus according to claim 1, wherein, The DCI corresponds to a Mode 1 message with resource allocation for sidelink transmission for the first UE.

4. The apparatus according to claim 1, wherein, The one or more processors configured to receive the DCI from the network entity in the Uu CC subset are further configured to receive the DCI with resource allocation for sidelink transmission between the first UE and the second UE in the Uu CC subset.

5. The apparatus according to claim 1, wherein, The one or more processors configured to communicate with the second UE on the sidelink CC subset are also configured to send one or more sidelink control messages (SCI) to the second UE.

6. The apparatus according to claim 5, wherein, The one or more SCIs include SCI1 and SCI2.

7. The apparatus according to claim 6, wherein, The SCI1 and SCI2 include resource information and transmission parameters regarding sidelink transmissions between the first UE and the second UE.

8. The apparatus according to claim 5, wherein, The one or more SCIs correspond to the Physical Side Link Control Channel (PSCCH) and the Physical Side Link Shared Channel (PSSCH).

9. An apparatus for wireless communication at a network entity, comprising: transceiver; Memory; as well as One or more processors coupled to the transceiver and the memory, wherein the one or more processors and the memory are configured to: Determine the configuration indicating the Uu CC subset among multiple Uu component carriers (CCs); The configuration is sent to a first user equipment (UE), wherein the first UE is configured to communicate via a sidelink with a second UE; and In response to sending the configuration, downlink control information (DCI) is sent to the first UE in the Uu CC subset.

10. The apparatus according to claim 9, wherein, The DCI corresponds to a Mode 1 message with resource allocation for the first UE for side link transmission with the second UE.

11. The apparatus according to claim 9, wherein, The one or more processors configured to send the DCI to the first UE in the Uu CC subset are further configured to send the DCI with resource allocation for sidelink transmissions between the first UE and the second UE in the Uu CC subset.

Images