Systems, methods, and devices for CMR configuration enhancement and UE capability reporting

Abstract

Solutions are described for channel measurement resource (CMR) configuration and UE capability reporting. A user equipment (UE) can determine capability information associated with a quantity of channel state information (CSI) reference signal (CSI-RS) resources, a quantity of ports per CSI-RS resource, a total quantity of ports, or any combination thereof that the UE can support. Based on receiving UE capability reporting including the capability information, a network can configure a CSI-RS resource set and corresponding configuration information. The network can configure the CSI-RS resources with slot offsets. A base station can transmit downlink control information indicating the CSI-RS resource set and the slot offsets, which the UE can use to receive a CSI-RS via the CSI-RS resources in accordance with the slot offsets. The UE can determine CSI based on the CSI-RS and transmit the CSI to the base station.

Description

Docket No. 106842260040 (P70862WO1)SYSTEMS, METHODS, AND DEVICES FOR CMR CONFIGURATION ENHANCEMENT AND UE CAPABILITY REPORTINGCROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of U.S. Provisional Application No.63 / 779,112, filed March 27, 2025, the content of which is herein incorporated by reference in its entirety for all purposes.FIELD

[0002] This disclosure relates to wireless communication networks and mobile device capabilities.BACKGROUND

[0003] Wireless communication networks and wireless communication services are becoming increasingly dynamic, complex, and ubiquitous. For example, some wireless communication networks can be developed to implement fifth generation (5G) or new radio (NR) technology, sixth generation (6G) technology, and so on. Such technology can include solutions for channel measurement resource (CMR) configuration enhancement and user equipment (UE) capability reporting. For example, a base station can configure CSLRS resources to support a hybrid beamforming configuration. Additionally, or alternatively, a UE can support communicating UE capability information to the base station for use in configuring the CSI-RS resources based on the hybrid beamforming configuration.BRIEF DESCRIPTION OF THE DRAWINGS

[0004] The present disclosure will be readily understood and enabled by the detailed description and accompanying figures of the drawings. Like reference numerals can designate like features and structural elements. Figures and corresponding descriptions are provided as non-limiting examples of aspects, implementations, etc., of the present disclosure, and references to "an" or “one” aspect, implementation, etc., may not necessarily refer to the same aspect, implementation, etc., and can mean at least one, one or more, etc.

[0005] Fig. l is a diagram of an example of an overview according one or more implementations described herein.

[0006] Fig. 2 is a diagram of example environment according to one or more implementation described herein.14935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)

[0007] Fig. 3 is a diagram of an example process for configuring a channel state information (CSI) reference signal (CSI-RS) resource set based on UE capability reporting according to one or more implementations described herein.

[0008] Fig. 4 is a diagram of an example CSI-RS resource set configuration according to one or more implementations described herein.

[0009] Figs. 5A and 5B are diagrams of example CSI-RS resource set configurations based on available slots according to one or more implementations described herein.

[0010] Figs. 6A and 6B are diagrams of example data structures for a CSI-RS resource set configuration according to one or more implementations described herein.

[0011] Figs. 7A and 7B are diagrams of example data structures for a CSI reporting configuration according to one or more implementations described herein.

[0012] Figs. 8 is a diagram of an example of components of a device configured to support channel measurement resource (CMR) configuration enhancement and UE capability reporting according to one or more implementations described herein.

[0013] Fig. 9 is a diagram of example interfaces of baseband circuitry configured to support CMR configuration enhancement and UE capability reporting according to one or more implementations described herein.

[0014] Fig. 10 is a block diagram illustrating components, according to one or more implementations described herein, able to read instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium) and perform any one or more of the methodologies supporting CMR configuration enhancement and UE capability reporting, as discussed herein.

[0015] Fig. 11 is a diagram of an example process for CMR configuration enhancement and UE capability reporting according to one or more implementations described herein.

[0016] Fig. 12 is a diagram of an example process for CMR configuration enhancement and UE capability reporting according to one or more implementations described herein.DETAILED DESCRIPTION

[0017] The following detailed description refers to the accompanying drawings. Like reference numbers in different drawings can identify the same or similar features, elements, operations, etc. Additionally, the present disclosure is not limited to the following description as other implementations can be utilized, and structural or logical changes made, without departing from the scope of the present disclosure.24935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)

[0018] Wireless communication networks can include user equipment (UE) capable of communicating with base stations and / or other network devices. UEs and base stations can implement various techniques and communications standards for enabling UEs and base stations to discover one another, establish and maintain connectivity, and exchange information in an ongoing manner. For example, UEs and base stations can be configured to communicate based on beamforming, in which beams associated with directional signaling can be generated, transmitted, and received between UEs and base stations.

[0019] Base stations and UEs can be configured to support channel measurement. For example, a base station can be configured to transmit a channel state information (CSI) reference signal (CSI-RS) and the UE can be configured to determine CSI based on the CSI-RS. The UE can determine CSI based on performing channel measurement (e.g., one or more measurements) and transmit a CSI report (e.g., an indication of the determined CSI) to the base station. The CSI-RS can be transmitted via a set of CSI-RS resources (e.g., channel measurement resources (CMR)), which can include time and frequency resources associated with portions of the CSI-RS. For example, each CSI-RS resource of a CSI-RS resource set can be associated with communicating a respective portion of a CSI-RS.

[0020] Some networks can support hybrid beamforming, in which antenna elements of a base station can be mapped to digital ports. For example, a quantity of antenna elements (e.g., 128 antenna elements) can be mapped to a different quantity of ports (e.g., 32 ports), such that a sub-quantity of antenna elements (e.g., 4 antenna elements) can map to each port. In some examples, a network can implement hybrid beamforming based on a base station being configured to support a quantity of ports for CSI-RSs (e.g., 32 CSI-RS ports for downlink (DL) CSI acquisition and Multiple-Input Multiple-Output (MIMO) operation) that is different than a quantity of antenna elements (e.g., due to a supported codebook). Based on implementing hybrid beamforming, a network (e.g., a base station) can functionally support 128 ports for CSI-RSs (e.g., based on mapping 4 antenna elements to each port of 32 CSI-RS ports).

[0021] Hybrid beamforming can include downlink sounding and CSI feedback reception. Implementing downlink sounding at a base station can include semi-static beamforming in which the base station is configured to perform beam sweeping for each port in multiple directions (e.g., 4 directions based on 4 antenna elements mapping to each port) to improve coverage. Additionally, or alternatively, implementing downlink sounding at a base station can include dynamic beamforming in which the base station is configured to dynamically change a precoder for MIMO operations to improve coverage and throughput. Implementing 34935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)CSI feedback reception can include a UE selecting a beam from the beam sweeping associated with semi-static beamforming based on performing channel measurement, before transmitting an indication of a precoder to the base station (e.g., based on performing channel measurement).

[0022] In some examples, a network (e.g., a base station of the network, a UE of the network) can support a quantity of CSI-RS resources (KS > 1) for channel measurement based on the network implementing hybrid beamforming. That is, the network can support a combination of a number of ports per CSI-RS resource and a quantity of CSI-RS resources. For example, the network can support 32 ports per CSI-RS resource (e.g., for 2, 3, 4 CSI-RS resources) or 16 ports per CSI-RS resource (e.g., for 5, 6, 7, 8 CSI-RS resources).

[0023] In some examples, the network can configure a UE to perform CSI reporting for a quantity of the CSI-RS resources (M < 4). Of the quantity of CSI-RS resources, the network can configure a sub-quantity of CSI-RS resources (MR) which the UE may not be required to select. The UE can be configured to select and report CSI for a portion of the quantity of CSI-RS resources (M - MR) among the remaining CSI-RS resources (KS-MR). In some cases, for each reported CSI-RS resource, the UE can report channel measurement information including a channel rank indicator (CRI), a channel quality indicator (CQI), a precoding matrix indicator (PMI), and a layer indicator, among other channel measurement parameters.

[0024] In some examples, implementing hybrid beamforming at a network can be associated with implementing CSI-RS resources of a set within a same slot. For example, if the network is configured to support a quantity of CSI-RS resources for channel measurement (Ks = 8), the CSI-RS resources can be associated with a same slot based on the network functionally supporting 128 CSI-RS ports. However, implementing multiple CSI-RS resources within a same slot can be difficult based on limited time within the slot.

[0025] For example, each slot can be configured to include 14 orthogonal frequency division multiplexing (OFDM) symbols, and each CSI-RS resource can be associated with one or more respective OFDM symbols of the slot. Additionally, each slot can include reserved OFDM symbols for uplink transmissions, measurement gaps, and other time intensive operations or signaling. Therefore, implementing a relatively large quantity of CSI-RS resources (e.g., 8 CSI-RS resources) within a same slot while maintaining the reserved OFDM symbols can be challenging.

[0026] One or more techniques described herein can support CMR configuration enhancement. For example, a CSI-RS resource set can be configured with each CSI-RS resource being implemented in accordance with a slot offset. The slot offsets can enable the 44935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)CSI-RS resource set to be spread across multiple slots. For example, a first CSI-RS resource and a second CSI-RS resource of the CSI-RS resource set can be configured with slot offsets defining that the first CSI-RS resource and the second CSI-RS resource are implemented in a first slot. Likewise, a third CSI-RS resource and a fourth CSI-RS resource of the CSI-RS resource set can be configured with slot offsets (e.g., different slot offsets than the first CSI-RS resource and the second CSI-RS resource) defining that the third CSI-RS resource and the fourth CSI-RS resource are implemented in a second slot. Implementing the slot offsets can provide increased flexibility for OFDM symbols of the respective slots (e.g., for performing other signaling or operations). Spreading the CSI-RS resources across multiple slots can improve reliability for functionally supporting 128 CSI-RS ports by distributing the CSI-RS resources of the CSI-RS resource set. In some examples, each CSI-RS resource of the CSI-RS resource set can be configured with a fixed slot offset or a candidate slot offset. In some examples, available slots supporting DL transmissions can be determined, and the slot offsets can define the CSI-RS resources to be implemented in the available slots.

[0027] Additionally, the techniques described herein can enable UE capability reporting. For example, a UE can indicate to a network (e.g., a base station of the network) capability information regarding channel measurement parameters that the UE supports. In some examples, the UE can indicate a quantity of CSI-RS resources (KS > 1) that the UE can support, a quantity of ports per CSI-RS resource (PCSI-RS) that the UE can support, or a total quantity of ports across all the CSI-RS resources (KS x PCSI-RS) that the UE can support. Additionally, or alternatively, the UE can indicate to the network a combination of the quantity of CSI-RS resources (KS > 1) that the UE can support, and the maximum quantity of ports per CSI-RS resource that the UE can support. In some implementations, the UE can indicate separate capability information for each codebook (e.g., Rel-15 Type-I Single Panel (SP) codebook, Rel-16 eType-II codebook) or common capability information for multiple codebooks. The network can use the UE capability reporting to configure the CSI-RS resource set. For example, the network can configure the slot offsets in accordance with the quantity of CSI-RS resources that the UE is configured to support. Configuring the CSI-RS resources, such as the slot offsets associated with the CSI-RS resources, can improve compatibility between the UE and the network. Likewise, implementing UE capability reporting can support the functional implementation of 128 CSI-RS ports, among other advantages.

[0028] Fig. 1 is a diagram of an example of an overview 100 according to one or more implementations described herein. As shown, overview 100 includes UE 110 and base station 54935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)120. Overview 100 includes an example network which can support communicating signaling between base station 120 and UE 110 based on the network implementing hybrid beamforming. That is, the network can be configured to functionally support 128 CSI-RS ports based on mapping 4 antenna elements of base station 120 to each of the 32 digital CSI-RS ports supported by the network.

[0029] Overview 100 illustrates the network supporting CMR configuration enhancement and UE capability reporting improvements as described herein. For example, the network can be configured to support communicating UE capability reporting between UE 110 and base station 120 (at 1.1). That is, UE 110 can be configured to transmit to base station 120 an indication of a quantity of CSI-RS resources, a quantity of ports per CSI-RS resource, or a total quantity of ports across the CSI-RS resources that the UE 110 can support. In some examples, UE 110 can be configured to alternatively transmit to base station 120 an indication of a combination of CSI-RS resources and ports per CSI-RS resource that UE 110 can support. In other examples, UE 110 can transmit an indication of separate capabilities associated with respective codebooks implemented by the network, or common capabilities associated with the codebooks implemented by the network.

[0030] The network can configure the CSI-RS resources based on the UE capability reporting (at 1.2). For example, base station 120 can configure a CSI-RS resource set associated with a CSI based on the capability of UE 110 to support the CSI-RS resource set. In some examples, configuring the CSI-RS resource set can include configuring each CSI-RS resource with a slot offset. For example, one or more CSI-RS resources of the CSI-RS resource set can be configured with a first slot offset correlating the CSI-RS resources with a first slot, and one or more CSI-RS resources of the CSI-RS resource set can be configured with a second slot offset correlating the CSI-RS resources with a second slot. In some implementations, the slot offset for each CSI-RS resource can be a fixed slot offset or a dynamically selectable slot offset (e.g., a candidate slot offset). In some implementations, the slot offsets can be based on slots available for DL transmissions.

[0031] After configuring the CSI-RS resources based on the UE capability reporting, base station 120 can communicate an indication of the CSI-RS resources to UE 110. For example, base station 120 can transmit downlink control information (DCI) indicating the CSI-RS resources to UE 110, including the slot offsets for each CSI-RS resource (at 1.3). At a time after the DCI is transmitted to UE 110, base station 120 can transmit the CSI-RS via the CSI-RS resources indicated by the DCI (at 1.4). For example, base station 120 can transmit a64935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)portion of the CSI-RS via each CSI-RS resource of the CSI-RS resource set based on the slot offset for the respective CSI-RS resource.

[0032] After receiving the CSI-RS via the CSI-RS resources, UE 110 can perform CSI measurement (at 1.5). For example, UE 110 can use the CSI-RS to perform one or more channel measurements identifying CSI associated with the CSI-RS. After performing CSI measurement, UE 110 can communicate CSI reporting to base station 120 (at 1.6). For example, UE 110 can transmit channel measurement information to base station 120, which base station 120 can use to facilitate other operations of the network.

[0033] Implementing the techniques described herein can support CMR configuration enhancement and UE capability reporting improvement. For example, because the CMR configuration is based on the UE capability reporting, the network can support improved compatibility between base station 120 and UE 110 for perform channel measurements. Likewise, implementing the CMR configuration can support hybrid beamforming by the network, which can enable 128 CSI-RS ports to be functionally supported by the network, among other advantages.

[0034] Fig. 2 is an example environment 200 in which one or more of the techniques described herein can be implemented. Example environment 200 can include UEs 210-1, 210-2, etc. (referred to collectively as “UEs 210” and individually as “UE 210”), a radio access network (RAN) 220, a core network (CN) 230, application servers 240, external networks 250.

[0035] The systems and devices of example environment 200 can operate in accordance with one or more communication standards, such as 3rd generation (3G), 4th generation (4G) (e.g., long-term evolution (LTE)), and / or 5th generation (5G) (e.g., new radio (NR)) communication standards of the 3rd generation partnership project (3GPP). Additionally, or alternatively, one or more of the systems and devices of example environment 200 can operate in accordance with other communication standards and protocols discussed herein, including future versions or generations of 3GPP standards (e.g., sixth generation (6G) standards, seventh generation (7G) standards, etc.), institute of electrical and electronics engineers (IEEE) standards, and more.

[0036] As shown, UEs 210 can include smartphones (e.g., handheld touchscreen mobile computing devices connectable to one or more wireless communication networks).Additionally, or alternatively, UEs 210 can include other types of mobile or non-mobile computing devices capable of wireless communications, such as personal data assistants (PDAs), pagers, laptop computers, desktop computers, wireless handsets, etc. In some74935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)implementations, UEs 210 can include Internet of Things (loT) devices (or loT UEs) that can implement narrowband (NB) communications and that can comprise, for example, a network access layer designed for low-power loT applications utilizing short-lived UE connections.

[0037] Additionally, or alternatively, an loT UE can utilize one or more types of technologies, such as machine-to-machine (M2M) communications or machine-type communications (MTC) (e.g., to exchanging data with an MTC server or other device via a public land mobile network (PLMN)), proximity-based service (ProSe) or device-to-device (D2D) communications, sensor networks, loT networks, and more. Depending on the scenario, an M2M or MTC exchange of data can be a machine-initiated exchange, and an loT network can include interconnecting loT UEs (which can include uniquely identifiable embedded computing devices within an Internet infrastructure) with short-lived connections. In some scenarios, loT UEs can execute background applications (e.g., keep-alive messages, status updates, etc.) to facilitate the connections of the loT network.

[0038] UEs 210 can communicate and establish a connection with one or more other UEs 210 via one or more wireless channels 212, each of which can comprise a physical communications interface / layer. The connection can include an M2M connection, MTC connection, D2D connection, SL connection, etc. The connection can involve a PC5 interface. In some implementations, UEs 210 can be configured to discover one another, negotiate wireless resources between one another, and establish connections between one another, without intervention or communications involving RAN node 222 or another type of network node. In some implementations, discovery, authentication, resource negotiation, registration, etc., can involve communications with RAN node 222 or another type of network node.

[0039] Various techniques for communication between and among UEs 210 in furtherance of offloading or computing operations are within the scope of the present disclosure. As described herein, in an example, UE 210 can communicate with RAN node 222 to request SL resources. RAN node 222 can respond to the request by providing UE 210 with a dynamic grant (DG) or configured grant (CG) regarding SL resources. The UE 210 can communicate with RAN node 222 using a licensed frequency band and communicate with the other UE 210 using an unlicensed or licensed frequency band. In another example, UEs 210 can communicate directly without involvement of RAN node 222, such as through resource pools, etc.

[0040] UEs 210 can communicate and establish a connection with RAN 220, which can involve one or more wireless channels 214-1 and 214-2, each of which can comprise a84935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)physical communications interface / layer. In some implementations, a UE can be configured with dual connectivity (DC) as a multi-radio access technology (multi-RAT) or multi-radio dual connectivity (MR-DC), where a multiple receive and transmit (Rx / Tx) capable UE can use resources provided by different network nodes (e.g., 222-1 and 222-2) that can be connected via non-ideal backhaul (e.g., where one network node provides NR access and the other network node provides either E-UTRA for LTE or NR access for 5G). A network node can be referred to herein as a base station 222. In such a scenario, one network node can operate as a master node (MN) and the other as the secondary node (SN). The MN and SN can be connected via a network interface, and at least the MN can be connected to the CN 230. In some implementations, a base station (as described herein) can be an example of network node 222. In some scenarios, RAN 220 can coordinate with core network 230 via interfaces 224, 226, and / or 228.

[0041] As shown, UE 210 can also, or alternatively, connect to access point (AP) 216 via connection interface 218, which can include an air interface enabling UE 210 to communicatively couple with AP 216. AP 216 can comprise a wireless local area network (WLAN), WLAN node, WLAN termination point, etc. The AP 216 can comprise a local wireless connection, such as a connection consistent with any IEEE 802.11 protocol, and AP 216 can comprise a wireless fidelity (Wi-Fi®) router or other access point device. While not explicitly depicted in Fig. 2, AP 216 can be connected to another network (e.g., the Internet) without connecting to RAN 220 or CN 230.

[0042] One or more of the techniques described herein include solutions for CMR configuration enhancement and UE capability reporting to support hybrid beamforming at a network. For example, UE 210 can transmit capability information to RAN node 222, which RAN node 222 can use to configure a CSI-RS resource set. The capability information can include a quantity of CSLRS resources, a quantity of ports per CSI-RS resource, a total quantity of ports across the CSI-RS resources, or any combination thereof that the UE can support. The RAN node 222 can configure the CSI-RS resource set such that each CSI-RS resource is associated with a slot offset. Implementing the slot offset can improve flexibility and configurability of the network for operating in accordance with hybrid beamforming operations, among other advantages. These and many other features and examples are described herein.

[0043] RAN 220 can include one or more RAN nodes 222-1 andr-r(referred to collectively as RAN nodes 222, and individually as RAN node 222) that enable channels 214-1 and 214-2 to be established between UEs 210 and RAN 220. RAN nodes 222 can 94935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)include network access points configured to provide radio baseband functions for data and / or voice connectivity between users and the network based on one or more of the communication technologies described herein (e.g., 3G, 4G, 5G, WiFi, etc.). As examples therefore, a RAN node can be an E-UTRAN Node B (e.g., an enhanced Node B, eNodeB, eNB, 4G base station, etc.), a next generation base station (e.g., a 5G base station, NR base station, next generation eNBs (gNB), etc.). RAN nodes 222 can include a roadside unit (RSU), a transmission reception point (TRxP or TRP), and one or more other types of ground stations (e.g., terrestrial access points). In some scenarios, RAN node 222 can be a dedicated physical device, such as a macrocell base station, and / or a low power (LP) base station for providing femtocells, picocells or the like having smaller coverage areas, smaller user capacity, or higher bandwidth compared to macrocells. A RAN node can generally be referred to herein as base station 222.

[0044] Some or all of RAN nodes 222, or portions thereof, can be implemented as one or more software entities running on server computers as part of a virtual network, which can be referred to as a centralized RAN (CRAN) and / or a virtual baseband unit pool (vBBUP). In these implementations, the CRAN or vBBUP can implement a RAN function split, such as a packet data convergence protocol (PDCP) split wherein radio resource control (RRC) and PDCP layers can be operated by the CRAN / vBBUP and other Layer 1 (LI) protocol entities can be operated by individual RAN nodes 222; a media access control (MAC) / physical (PHY) layer split wherein RRC, PDCP, radio link control (RLC), and MAC layers can be operated by the CRAN / vBBUP and the PHY layer can be operated by individual RAN nodes 222; or a “lower PHY” split wherein RRC, PDCP, RLC, MAC layers and upper portions of the PHY layer can be operated by the CRAN / vBBUP and lower portions of the PHY layer can be operated by individual RAN nodes 222. This virtualized framework can allow freed-up processor cores of RAN nodes 222 to perform or execute other virtualized applications.

[0045] In some implementations, an individual RAN node 222 can represent individual gNB-distributed units (DUs) connected to a gNB-control unit (CU) via individual Fl or other interfaces. In such implementations, the gNB-DUs can include one or more remote radio heads or radio frequency (RF) front end modules (RFEMs), and the gNB-CU can be operated by a server (not shown) located in RAN 220 or by a server pool (e.g., a group of servers configured to share resources) in a similar manner as the CRAN / vBBUP. Additionally, or alternatively, one or more of RAN nodes 222 can be next generation eNBs (i.e., gNBs) that can provide evolved universal terrestrial radio access (E-UTRA) user plane and control plane104935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)protocol terminations toward UEs 210, and that can be connected to a 5G core network (5GC) 230 via an NG interface.

[0046] Any of the RAN nodes 222 can terminate an air interface protocol and can be the first point of contact for UEs 210. In some implementations, any of the RAN nodes 222 can fulfill various logical functions for the RAN 220 including, but not limited to, radio network controller (RNC) functions such as radio bearer management, uplink and downlink dynamic radio resource management and data packet scheduling, and mobility management. UEs 210 can be configured to communicate using orthogonal frequency-division multiplexing (OFDM) communication signals with each other or with any of the RAN nodes 222 over a multicarrier communication channel in accordance with various communication techniques, such as, but not limited to, an OFDMA communication technique (e.g., for downlink communications) or a single carrier frequency-division multiple access (SC-FDMA) communication technique (e.g., for uplink and ProSe or sidelink (SL) communications), although the scope of such implementations may not be limited in this regard. The OFDM signals can comprise a plurality of orthogonal subcarriers.

[0047] The PDSCH can carry user data and higher layer signaling to UEs 210. The physical downlink control channel (PDCCH) can carry information about the transport format and resource allocations related to the PDSCH channel, among other things. The PDCCH can also inform UEs 210 about the transport format, resource allocation, and hybrid automatic repeat request (HARQ) information related to the uplink shared channel. Typically, downlink scheduling (e.g., assigning control and shared channel resource blocks to UE 210 within a cell) can be performed at any of the RAN nodes 222 based on channel quality information feedback from any of UEs 210. The downlink resource assignment information can be sent on the PDCCH used for (e.g., assigned to) each of UEs 210.

[0048] RAN nodes 222 can be configured to communicate with one another via interface 223. In implementations where the system is an LTE system, interface 223 can be an X2 interface. In NR systems, interface 223 can be an Xn interface. The X2 interface can be defined between two or more RAN nodes 222 (e.g., two or more eNBs / gNBs or a combination thereof) that connect to evolved packet core (EPC) or CN 230, or between two eNBs connecting to an EPC. As shown, RAN 220 can be connected (e.g., communicatively coupled) to CN 230. CN 230 can comprise a plurality of network elements 232, which are configured to offer various data and telecommunications services to customers / subscribers (e.g., users of UEs 210) who are connected to the CN 230 via the RAN 220. In some114935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)implementations, CN 230 can include an evolved packet core (EPC), a 5G CN (5GC), and / or one or more additional or alternative types of CNs.

[0049] As shown, CN 230, application servers 240, and external networks 250 can be connected to one another via interfaces 234, 236, and 238, which can include IP network interfaces. Application servers 240 can include one or more server devices or network elements (e.g., virtual network functions (VNFs) offering applications that use IP bearer resources with CN 230 (e.g., universal mobile telecommunications system packet services (UMTS PS) domain, LTE PS data services, etc.). Application servers 240 can also, or alternatively, be configured to support one or more communication services (e.g., voice over IP (VoIP sessions, push-to-talk (PTT) sessions, group communication sessions, social networking services, etc.) for UEs 210 via the CN 230. Similarly, external networks 250 can include one or more of a variety of networks, including the Internet, thereby providing the mobile communication network and UEs 210 of the network access to a variety of additional services, information, interconnectivity, and other network features.

[0050] Fig. 3 is a diagram of an example process 300 for configuring a CSI-RS resource set based on UE capability reporting to support hybrid beamforming at a network. As shown, process 300 can be performed by UE 210 and base station 222. Operations described as being performed by UE 210 can be performed, at least in part, by baseband circuitry of UE 210. Operations described as being performed by base station 222 can be performed, at least in part, by baseband circuitry of base station 222 or another type of network access node.Process 300 illustrates operations and signaling associated with a network implementing hybrid beamforming, such that the network can functionally support 128 CSI-RS ports based on mapping 4 antenna elements of base station 222 to each of 32 CSI-RS ports. Process 300 illustrates channel measurement process enhancements to support the 128 CSI-RS ports when the network has configured a CSI-RS resource set (e.g., including more than one CSI-RS resource) for channel measurement.

[0051] Some or all of process 300 can be performed by one or more other systems or devices, including one or more of the devices of Figure 1 or Figure 2. Additionally, process 300 can include one or more, additional, differently ordered, and / or arranged operations than those shown in Figure 3. Some or all of the operations of process 300 can be performed independently, successively, simultaneously, etc., of one or more of the other operations of process 300. As such, the techniques described herein are not limited to the number, sequence, arrangement, timing, etc., of the operations or processes depicted in Figure 3.124935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)

[0052] As shown, process 300 includes establishing a connection between UE 210 and base station 222 (at block 310). For example, base station 222 can communicate signaling with UE 210 to connect UE 210 to one or more cells of base station 222 and / or the network associated with base station 222. In some examples, during establishing the connection between UE 210 and base station 222, UE 210 can communicate a UE capability report to the base station 222 (at block 320). That is, UE 210 can transmit an indication of the UE’s capability to support operations associated with the network implementing hybrid beamforming. In some examples, UE 210 can determine capability information associated with the UE capability report prior to transmitting the UE capability report. In other examples, UE 210 can be preconfigured with the capability information (e.g., based on the UE, the network, or other factors), such that transmitting the UE capability report can include transmitting an indication of the preconfigured capability information.

[0053] In some examples, the UE capability report can include an indication of a quantity of CSI-RS resources (e.g., KS, where KS is greater than 1) that UE 210 can support. That is, UE 210 can support performing CSI-RS measurements based on the quantity of CSI-RS resources (e.g., 2, 3, 4, 5, 6, 7, or 8 CSI-RS resources), and an indication of said quantity of CSI-RS resources can be included in the UE capability report. In some such examples, it can be assumed that for each quantity of CSI-RS resources (e.g., KS), UE 210 can support various (e.g., all) possible quantities of ports per CSI-RS resource (e.g., 16 ports per CSI-RS resource and 32 CSI-RS resources). In some cases, the value of the quantity of CSI-RS resources can be based on the network implementing hybrid beamforming, functionally supporting 128 CSI-RS ports.

[0054] In some examples, the UE capability report can include an indication of a quantity of ports per CSI-RS resource (e.g., PCSI-RS) that UE 210 can support. That is, UE 210 can support performing CSI-RS measurements based on the quantity of ports per CSI-RS resource (e.g., 16 ports or 32 ports), and an indication of said quantity of ports per CSI-RS resource can be included in the UE capability report. In some such examples, it can be assumed that for each quantity of ports per CSI-RS resource (e.g., PCSI-RS), UE 210 can support various (e.g., all) possible quantities of CSI-RS resources (e.g., 2, 3, 4, 5, 6, 7, and 8 CSI-RS resources). In some cases, the value of the quantity of ports per CSI-RS resource can be based on the network implementing hybrid beamforming, functionally supporting 128 CSI-RS ports.

[0055] In some examples, the UE capability report can include an indication of a maximum total quantity of ports across all the CSI-RS resources of the CSI-RS resource set 134935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)(e.g., KS x PCSI-RS). That is, UE 210 can support performing CSI-RS measurements based on the maximum total quantity of ports across all the CSI-RS resources, and an indication of said maximum total quantity can be included in the UE capability report. In some cases, the value of the maximum total quantity can be based on the network implementing hybrid beamforming, functionally supporting 128 CSI-RS ports.

[0056] In some examples, the UE capability report can include an indication of a combination of CSI-RS resources and ports that UE 210 can support. That is, the UE capability report can include an indication of the maximum quantity of ports per CSI-RS resource that UE 210 can support. For example, UE 210 can support a maximum of 32 ports per CSI-RS resource or a maximum of 16 ports per CSI-RS resource. Likewise, the UE capability report can include an indication of the maximum quantity of CSI-RS resources that UE 210 can support for a given maximum quantity of ports per CSI-RS resource. For example, UE 210 can support a maximum of 4 CSI-RS resources for a maximum of 32 ports per CSI-RS resource, or 8 CSI-RS resources for a maximum of 16 ports per CSI-RS resource. In some cases, the values of the maximum quantity of ports per CSI-RS resource and the maximum quantity of CSI-RS resources can be based on the network implementing hybrid beamforming, functionally supporting 128 CSI-RS ports.Table 1: Possible Combinations of CSI-RS Resources and Ports per CSI-RS Resource Ks (Quantity of CSI-RS Resources) Maximum # of Ports per CSI-RS Resource 2, 3, 4 325, 6, 7, 8 16

[0057] Table 1 illustrates an example of possible combinations of CSI-RS resources and ports per CSI-RS resource. For example, UE 210 can support 3 CSI-RS resources and 32 ports per CSI-RS resource (e.g., 96 total ports) or 6 CSI-RS resources and 16 ports per CSI-RS resource (e.g., 96 total ports). In some such examples, UE 210 can therefore also support 2 CSI-RS resources and 32 ports per CSI-RS resource (e.g., 64 total ports), and 5 CSI-RS resources and 16 ports per CSI-RS resource (e.g., 80 total ports). This can be due to the total quantity of ports for the aforementioned combinations (e.g., 64 total ports, 80 total ports) being less than the total quantity of ports that UE 210 can support (e.g., 96 total ports).However, in some such examples, UE 210 can therefore not support 4 CSI-RS resources and 32 ports per CSI-RS resource (e.g., 128 total ports), 7 CSI-RS resources and 16 ports per144935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)CSI-RS resource (e.g., 112 total ports), and 8 CSI-RS resources and 16 ports per CSI-RS resource (e.g., 128 total ports). This can be due to the total quantity of ports for the aforementioned combinations (e.g., 112 total ports, 128 total ports) being greater than the total quantity of ports that UE 210 can support (e.g., 96 total ports).

[0058] In some examples, the UE capability report can include an indication of a combination of CSI-RS resources and ports that UE 210 can support for one or more codebooks. For example, UE 210 can independently report a first UE capability for a first codebook (e.g., Rel-15 Type-I Single Panel (SP) codebook) and a second UE capability for a second codebook (e.g., Rel 16 eType-II codebook). In some such examples, the first UE capability and the second UE capability can each include an indication of a quantity of CSI-RS resources, a quantity of ports per CSI-RS resource, a total quantity of ports, or any combination thereof or referenced herein. In other examples, UE 210 can report a single common UE capability for the first codebook and the second codebook. In some such examples, the single common UE capability can include an indication of a quantity of CSI-RS resources, a quantity of ports per CSI-RS resource, a total quantity of ports, or any combination thereof or referenced herein.

[0059] As shown, process 300 includes configuring a CSI-RS resource set (at block 330). The network (e.g., base station 222) can configure the CSI-RS resources associated with the CSI-RS resource set based on the UE capability report received (at block 320). For example, the network (e.g., base station 222) can configure the quantity of CSI-RS resources of the CSI-RS resource set based on the quantity of CSI-RS resources that UE 210 can support, the quantity of ports per CSI-RS resources that UE 210 can support, the total quantity of ports that UE 210 can support, a combination of CSI-RS resources and ports per CSI-RS resource that UE 210 can support, one or more codebooks that UE 210 can support, or a combination of any of the preceding. In some examples, the CSI-RS resource set can be an aperiodic CSI-RS resource set, such that the CSI-RS resource can be aperiodic CSI-RS resources.

[0060] Configuring the CSI-RS resource set can include configuring each CSI-RS resource with a slot offset. The slot offset can be defined relative to a reference slot, where the reference slot is configured as a quantity of slots (e.g., offset) from a slot in which a DCI (e.g., a DCI associated with the CSI-RS resources) is transmitted. In some examples, the slot offset can be a single bit indicating whether a slot offset is applied for the respective CSI-RS resource. In some such examples, the slot offset can be a fixed slot offset, such that if the single bit indicates a slot offset, the slot offset is preconfigured for the respective CSI-RS resource. In other examples, the slot offset can be more than one bit indicating a selection 154935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)from more than one candidate slot offsets. In some such examples, the slot offset can indicate which slot the respective CSI-RS resource is offset to, or a quantity of slots that the respective CSI-RS resource can be offset to.

[0061] In some cases, the slot offset can be configured for each CSI-RS resource within configuration information of the CSI-RS resource set, such that upon reception of the configuration information (e.g., DCI) of the CSI-RS resource set, the slot offset can be recognized by UE 210. That is, the slot offset for each CSI-RS resource can be included in the configuration information for the CSI-RS resource set. In other cases, the slot offset can be configured for each CSI report associated with a respective CSI-RS resource of the CSI-RS resource set, such that upon reception of configuration information associated with CSI reporting, the slot offset can be recognized by UE 210. That is, the slot offset for each CSI-RS resource can be included in CSI reporting configuration information used to indicate to UE 210 how to measure the CSI-RS resources for CSI reporting.

[0062] In some examples, the slot offset can be configured based on available downlink slots. For example, the slot offset is configured for each CSI-RS resource such that the CSI-RS resource is associated with a slot reserved for downlink transmissions (e.g., due to a CSI-RS being transmitted downlink via the CSI-RS resources). In some such examples, the slot offset can skip unavailable slots, which can be reserved for uplink transmissions, and unsuitable for the CSI-RS resources (e.g., due the CSI-RS resources being associated with downlink transmission).

[0063] After configuring the CSI-RS resource set, base station 222 can transmit DCI indicating the CSI-RS resource set to UE 210 (at block 340). The DCI can include an indication of the CSI-RS resource set and configuration information associated with the CSI-RS resource set, including the slot offsets which can be preconfigured for the CSI-RS resources. That is, upon receiving the DCI, UE 210 can be configured to receive the CSI-RS via the CSI-RS resources at the respective slot offsets associated with each of the CSI-RS resources. The DCI can include an indication of an offset for a reference slot in which base station 222 can begin to transmit the CSI-RS via the CSI-RS resources. For example, the offset can indicate a quantity of slots for UE 210 to wait before beginning measuring the CSI-RS resources. That is, the DCI can be transmitted to UE 210 at a first slot, and include the offset, which indicates a quantity of slots or duration, from the first slot, until a slot serving as a reference slot. The reference slot can be the time at which the slot offsets are defined relatively.164935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)

[0064] As shown, process 300 includes communicating the CSI-RS via the CSI-RS resource set (at 350). Base station 222 can transmit the CSI-RS using the CSI-RS resources in accordance with the slot offset defined by the configuration information. For example, base station 222 can transmit a first portion of the CSI-RS via a first CSI-RS resource associated with a first slot offset (e.g., defined relative to the reference slot), and a second portion of the CSI-RS via a second CSI-RS resource associated with a second slot offset (e.g., defined relative to the reference slot). UE 210 can monitor for the CSI-RS at the CSI-RS resources based on receiving the DCI indicating the CSI-RS resources.

[0065] Additionally, UE 210 can perform CSI measurements based on the CSI-RS and using the CSI-RS resources to identify CSI (at block 360). For example, UE 210 can measure CRI, CQI, PMI, and LI based on receiving the CSI-RS via the CSI-RS resources and performing channel measurement. After determining the CSI, UE 210 can transmit one or more CSI reports to base station 222 (at block 370). In some examples, the one or more CSI reports can include an indication of the CRI, CQI, PMI, and LI determined by the UE at block 360. UE 210 can perform CSI reporting based on satisfying a threshold. For example, UE 210 can transmit the one or more CSI reports based on determining the CSI satisfies a threshold. Upon receiving the one or more CSI reports, base station 222 can use the CSI for performing other operations and / or signaling.

[0066] Implementing process 300 as described herein can support hybrid beamforming at a network. Additionally, the techniques described herein can provide improved flexibility and support for compatibility between devices of the network, including UE 210 and base station 222, among other advantages.

[0067] Fig. 4 is a diagram of an example CSI-RS resource set configuration 400 implementing slot offsets to support hybrid beamforming according to one or more implementations described herein. CSI-RS resource set configuration 400 can be implemented by a network, including one or more network devices, which can be examples of UE 210 and base station 222. CSI-RS resource set configuration 400 is illustrated relative to a horizontal axis which can be representative of a time domain, including a quantity of slots 430 that each occupy a portion of the time domain.

[0068] CSI-RS resource set configuration 400 illustrates communicating a CSI-RS via CSI-RS resources 410 (e.g., CSI-RS resource 410-1, CSI-RS resource 410-2, CSI-RS resource 410-3, CSI-RS resource 410-4) as shown in block 350 of process 300. For example, base station 222 can transmit the CSI-RS via the CSI-RS resources 410, such that each CSI-RS resource 410 is associated with communicating a portion of the CSI-RS. The CSI-RS 174935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)resources 410 can be configured (e.g., as shown in block 330 of process 300) by base station 222 (e.g., or the network) prior to transmitting the CSI-RS via the CSI-RS resources 410.

[0069] In some cases, the CSI-RS can be an aperiodic CSI-RS and the CSI-RS resources 410 can be aperiodic CSI-RS resources associated with an aperiodic CSI-RS resource set corresponding to the aperiodic CSI-RS. For example, CSI-RS resource 410-1, CSI-RS resource 410-2, CSI-RS resource 410-3, and CSI-RS resource 410-4 are associated with a CSI-RS resource set. Each CSI-RS resource 410 can be associated with a respective time range (e.g., one or more OFDM symbols) and a frequency range (e.g., a quantity of subcarriers) over which a portion of the CSI-RS is transmitted from base station 222 to UE 210. For example, CSI-RS resource 410-1 and CSI-RS resource 410-2 can be associated with slot 430-2, and CSI-RS resource 410-3 and CSI-RS resource 410-4 can be associated with slot 430-3 based on configuration by base station 222 (e.g., or the network). In some such examples, slot 430-3 can immediately succeed slot 430-2 in the time domain, or one or more slots can be present between slot 430-2 and slot 430-3 in the time domain.

[0070] Each CSI-RS resource 410 can be associated with a respective slot offset. That is, each CSI-RS resource 410 can be configured with a respective slot offset by base station 222 (e.g., or the network), as shown in block 330 of process 300. For example, CSI-RS resource 410-1 can be configured with a first slot offset, CSI-RS resource 410-2 can be configured with a second slot offset, CSI-RS resource 410-3 can be configured with a third slot offset, and CSI-RS resource 410-4 can be configured with a fourth slot offset.

[0071] In some implementations, the first slot offset and the second slot offset can be a same slot offset, and the third slot offset and the fourth slot offset can be a same slot offset different from the slot offset of the first and second slot offset. In some such implementations, the first slot offset and the second slot offset can be associated with slot 430-2, and the third slot offset and the fourth slot offset can be associated with slot 430-3. In other implementations, the first slot offset and the second slot offset can be different slot offsets, such that the first slot offset and the second slot offset can indicate different OFDM symbols within the same slot. For example, the first slot offset can be associated with an OFDM symbol of slot 430-2 and the second slot offset can be associated with a different OFDM symbol of slot 430-2.

[0072] The slot offsets can be indicated by DCI 420. That is, base station 222 can transmit DCI 420 to UE 210 which can include an indication of CSI-RS resources 410 and configuration information associated with CSI-RS resources 410. In some examples, DCI 420 can include an indication of the CSI-RS resource set including the CSI-RS resources 410, and 184935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)the CSI-RS resource set can be preconfigured (e.g., by base station 222, by the network) with configuration information, such that UE 210 can recognize the implicit configuration information based on the indication of the CSI-RS resource set. The configuration information can include the slot offsets associated with each CSI-RS resource 410 of the CSI-RS resource set. For example, each CSI-RS resource 410 can be configured with a respective slot offset such that an indication of the CSI-RS resource set within DCI 420 can indicate the slot offsets.

[0073] DCI 420 can be transmitted from base station 222 to UE 210 and can indicate to UE 210 the CSI-RS resources 410 and the respective slot offsets. For example, UE 210 can receive (e.g., and decode) DCI 420 to determine the scheduling of the CSI-RS resources 410 which the CSI-RS can be transmitted via. In some examples, the DCI 420 can functionally convey CSI-RS resource set configuration 400, such that the UE can be configured to search for and receive the CSI-RS via the CSI-RS resources 410 indicated by the DCI 420. In some such examples, the UE can determine the slot offsets for the CSI-RS resources 410 based on receiving an indication of the slot offsets or receiving an indication of the CSI-RS resource set (e.g., in which the slot offsets can be preconfigured).

[0074] Each slot offset can be either a fixed offset or a dynamic offset. For example, a slot offset can be a fixed offset hardcoded in the specification regarding the CSI-RS resource set or configured by RRC regarding the CSI-RS resource set. That is, the first slot offset can be a fixed offset configured for CSI-RS resource 410-1 which indicates slot 430-2, and the second slot offset can be a fixed offset configured for CSI-RS resource 410-2 which indicates slot 430-2. Likewise, the third slot offset can be a fixed offset configured for CSI-RS resource 410-3 which indicates slot 430-3, and the fourth slot offset can be a fixed offset configured for CSI-RS resource 410-4 which indicates slot 430-3. In some implementations, each fixed offset can indicate the respective slot 430 associated with each of the CSI-RS resources 410, where the respective slot 430 is preconfigured for the respective CSI-RS resource 410. In other implementations, each fixed offset can be associated with an order of the CSI-RS resources 410 relative to the time domain and can indicate the respective slot 430 of the respective CSI-RS resource 410 based on the location of the CSI-RS resource within the order.

[0075] In other examples, each slot offset can be a dynamic offset. The dynamic offset can enable selection of a slot offset from a quantity of candidate slot offsets. For example, the first slot offset can be a dynamic offset configured for CSI-RS resource 410-1 which indicates slot 430-2 or slot 430-3, or an OFDM symbol within slot 430-2 (e.g., or slot 430-3).194935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)In some implementations, each dynamic offset can indicate the selection of the candidate slot offset from the quantity of candidate slot offsets. In other implementations, each dynamic offset can be associated with an order of the CSI-RS resources 410 relative to the time domain and can indicate the selected candidate slot offset for the respective CSI-RS resource 410 based on the location of the CSI-RS resource within the order.

[0076] In some examples, the slot offsets can be defined by one or more bits in the indication of CSI-RS resources 410 or the configuration information included in DCI 420. For example, the slot offset can be a fixed offset defined by one bit, or a dynamic offset defined by more than one bit. If the slot offset is defined by one bit, a first value of the bit (e.g., “0”) can indicate no slot offset is applied for the respective CSI-RS resource 410.Additionally, if the slot offset is defined by one bit, a second value of the bit (e.g., “1”) can indicate the fixed offset for the respective CSI-RS resource 410. If the slot offset is defined by more than one bit, the value of the bit can provide selection of more than 1 candidate slot offset that can be implemented for the respective CSI-RS resource 410.

[0077] The slot offsets can be defined relative to a reference location or a reference slot, where the reference location or reference slot is defined relative to DCI 420. For example, DCI 420 can be transmitted at slot 430-1, and DCI 420 can include an indication of offset 440 (e.g., aperiodicTriggeringOffset) for defining the reference location or reference slot. That is, offset 440 can be applied to slot 430-1, and an end of offset 440 (e.g., in time) can define the reference location or reference slot. Then, the slot offsets can be defined relative to the reference location or reference slot, such that the end of offset 440 can define from where the slot offset is applied. Offset 440 can be defined as a quantity of slots 430, a quantity of OFDM symbols, or another quantity in the time domain which is applied to slot 430-1. In some examples, one or more slots 430 can be present between the end of offset 440 (e.g., the reference location or reference slot) and the slot 430 (e.g., slot 430-2) implementing CSI-RS resources 410 (e.g., CSI-RS resource 410-1, CSI-RS resource 410-2).

[0078] For example, the end of offset 440 can align to the beginning of slot 430-2, and the slot offsets can be defined relative to slot 430-2. In some examples, the first slot offset and the second slot offset may not offset (e.g., can be zero offsets) CSI-RS resource 410-1 and CSI-RS resource 410-2 from slot 430-2 based on slot 430-2 being implemented immediately after offset 440. In other examples, the first offset and the second slot offset can offset CSI-RS resource 410-1 and CSI-RS resource 410-2 to slot 430-2 based on slot 430-2 being implemented after offset 440.204935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)

[0079] Implementing CSI-RS resource set configuration 400 can provide increased flexibility for transmitting the CSI-RS via CSI-RS resources 410. Additionally, applying the slot offsets to CSI-RS resources 410 can enable multiple CSI-RS resources 410 to be implemented in each slot, while allowing time to perform other signaling or operations (e.g., measurement gaps, uplink transmissions). In some examples, the slot offsets can be configured based on UE capability reporting received from UE 210. Configuring the CSI-RS resource set based on the UE capability reporting can provide improved support for compatibility between devices operating in a network implementing hybrid beamforming, among other advantages.

[0080] Figs. 5A and 5B are diagrams of example CSI-RS resource set configurations 500 based on available slots according to one or more implementations described herein. For example, Fig. 5 A illustrates CSI-RS resource set configuration 500-1 and Fig. 5B illustrates CSI-RS resource set configuration 500-2. CSI-RS resource set configuration 500-1 and CSI-RS resource set configuration 500-2 can each be implemented by a network, including one or more network devices, which can be examples of UE 210 and base station 222. CSI-RS resource set configuration 500-1 and CSI-RS resource set configuration 500-2 are each illustrated relative to respective horizontal axes which can be representative of a time domain, each including a quantity of slots 430 that each occupy a portion of the time domain.

[0081] CSI-RS resource set configuration 500-1 and CSI-RS resource set configuration 500-2 each include CSI-RS resources 410, as described with reference to Fig. 4. The CSI-RS resources 410 in each of CSI-RS resource set configuration 500-1 and CSI-RS resource set configuration 500-2 can be representative of a CSI-RS resource set corresponding to a CSI-RS. For example, each CSI-RS resource 410 can be used for communicating a portion of the CSI-RS.

[0082] Each CSI-RS resource 410 can be associated with a slot 430, where each slot 430 can be configured to implement multiple CSI-RS resources 410. For example, each CSI-RS resource 410 can be associated with a respective slot offset, which can be preconfigured by base station 222 for the corresponding CSI-RS resource set. The slot offsets can be classified as fixed offsets or dynamic offsets (e.g., candidate slot offsets), as described herein. Each slot offset can configure the respective CSI-RS resource to be implemented within a slot 430. For example, a first slot offset can configure CSI-RS resource 410-1 to be implemented within slot 430-2 and a second slot offset can configure CSI-RS resource 410-2 to be implemented within slot 430-2.214935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)

[0083] The slot offsets can be defined relative to offset 440, which can be applied after DCI 420. That is, each of CSI-RS resource set configuration 500-1 and CSI-RS resource set configuration 500-2 include DCI 420, which can be transmitted from base station 222 to UE 210 indicating CSI-RS resources 410 and corresponding configuration information. The offset 440 can be a time offset applied to slot 430-1, in which DCI 420 is communicated, and can define a reference location or slot from which the slot offsets are defined.

[0084] Each slot 430 can be associated with communicating UL signaling or DL signaling. That is, each slot 430 can be reserved by the network (e.g., or base station 222) for primarily performing UL transmissions or DL receptions. For example, slot 430-2 is a DL slot configured primarily for communicating DL signaling, slot 430-3 is a UL slot configured primarily for communicating UL signaling, and slot 430-4 is a DL slot configured primarily for communicating DL signaling. In some examples, a DL slot can include a quantity (e.g., a majority) of OFDM symbols reserved for performing DL signaling, and a UL slot can include a quantity (e.g., a majority) of OFDM symbols reserved for performing UL signaling.Although a DL slot can include a quantity of OFDM symbols reserved for performing DL signaling, the DL slot can also include one or more OFDM symbols reserved for measurement gaps, UL signaling, or other operations and signaling. Likewise, the UL slot can include one or more OFDM symbols reserved for DL signaling, among other operations and signaling.

[0085] Each slot 430 can be classified as available or unavailable for communicating the CSI-RS via the CSI-RS resources 410. Slots 430 can be classified as available based on the slots 430 being DL slots configured for performing DL signaling, including CSI-RS reception via the CSI-RS resources 410. Slots can be classified as unavailable based on the slots 430 being UL slots configured for performing UL signaling rather than DL signaling. For example, slot 430-2 and slot 430-4 can be available slots based on slot 430-2 and slot 430-4 being DL slots. However, slot 430-3 can be an unavailable slot based on being a UL slot.

[0086] CSI-RS resource set configuration 500-1 illustrates a first operation for communicating the CSI-RS via the corresponding CSI-RS resources 410, and CSI-RS resource set configuration 500-2 illustrates a second operation for communicating the CSI-RS via the corresponding CSI-RS resources 410. The first operation can be a relatively simple operation, in which CSI-RS resources 410 can be offset to any slot 430 (e.g., slot 430-2, slot 430-3, slot 430-4). The second operation can be a relatively advanced operation, in which CSI-RS resources 410 can be offset to available slots 430 (e.g., slot 430-2, slot 430-4).224935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)

[0087] In the first operation, the CSI-RS resources 410 can be configured with slot offsets that do not factor in the availability of the resulting slot. For example, CSI-RS resource 410-3 and CSI-RS resource 410-4 can be configured with slot offsets resulting in CSI-RS resource 410-3 and CSI-RS resource 410-4 being implemented in an unavailable slot (e.g., a UL slot). In some examples, the slot offsets for CSI-RS resource 410-3 and CSI-RS resource 410-4 can be configured such that the slot offsets result in the CSI-RS resources 410 being implemented in the slot (e.g., slot 430-3) immediately following the slot (e.g., slot 430-2) associated with CSI-RS resource 410-1 and CSI-RS resource 410-2. That is, UE 210 can be configured to monitor for the CSI-RS via the CSI-RS resources 410 (e.g., CSI-RS resource 410-3, CSI-RS resource 410-4) during slot 430-3, which is an unavailable slot. Monitoring for the CSI-RS during the unavailable slot can prevent UE 210 from receiving the CSI-RS during the unavailable slot.

[0088] In the second operation, the CSI-RS resources 410 can be configured with slot offsets that factor in the availability of the resulting slot. For example, CSI-RS resource 410-3 and CSI-RS resource 410-4 can be configured with slot offsets resulting in CSI-Rs resource 410-3 and CSI-RS resource 410-4 being implemented in an available slot (e.g., a DL slot). In some examples, the slot offsets for CSI-RS resource 410-3 and CSI-RS resource 410-4 can be configured such that the slot offsets result in the CSI-RS resources 410 being implemented in the next available slot (e.g., slot 430-4) following the slot (e.g., slot 430-2) associated with CSI-RS resource 410-1 and CSI-RS resource 410-2. That is, UE 210 can be configured to monitor for the CSI-RS via the CSI-RS resources 410 (e.g., CSI-RS resource 410-3, CSI-RS resource 410-4) during slot 430-4, which is an available slot. Monitoring for the CSI-RS during the available slot can enable UE 210 to receive the CSI-RS during the available slot.

[0089] To facilitate the second operation, unavailable slots may not be counted in the slot offsets. That is, the UE 210 can be configured to monitor for the CSI-RS only during the available slots based on receiving an indication of the available slots. For example, base station 222 can indicate to UE 210 the list of available slots or the slot availabilities per slot, which UE 210 can use to determine when the CSI-RS will be transmitted. In some implementations, UE 210 can skip monitoring for the CSI-RS at an unavailable slot (e.g., which can be indicated by the slot offsets), and monitor for the CSI-RS at the next available slot (e.g., following the unavailable slot. In some examples, UE 210 can be configured with the capability to support the second operation. In some such examples, UE 210 can transmit an indication of the capability to support the second operation during the UE capability234935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)reporting at block 320 of process 300. In some implementations, the second operation can be separately enabled by the network (e.g., base station 222) via RRC.

[0090] In some examples, when the network (e.g., base station 222) configures each CSI-RS resource 410 with a respective slot offset, the slot offset can be counted as the available slot offset for CSI-RS reception. That is, the available slots can be configured using an RRC configuration. In some implementations, the network can configure DL OFDM symbols or flexible OFDM symbols for the time domain locations for the symbols of CSI-RS resources 410. In some examples, throughout a time period defined by a first symbol associated with DCI 420 and a last symbol of the CSI-RS resource set, the classifications of available slots may not be altered. For example, throughout the time period, UE 210 can receive an SFI indication, aDL signaling cancellation indication, orUL signaling (e.g., dynamic scheduling of UL channel signaling) on the flexible OFDM symbols which would otherwise alter the determination of available slots to unavailable slots.

[0091] Implementing CSI-RS resource set configuration 500-1 and CSI-RS resource set configuration 500-2 can improve accuracy in monitoring for the CSI-RS via CSI-RS resources 410. For example, UE 210 supporting CSI-RS resource set configuration 500-2 can enable UE 210 to refrain from monitoring for the CSI-RS during unavailable slots, which can reduce overhead at UE 210 or enable UE 210 to perform other operations during the unavailable slots. In some examples, the slot offsets can be configured based on UE capability reporting received from UE 210. Configuring the CSI-RS resource set based on the UE capability reporting can provide improved support for compatibility between devices operating in a network implementing hybrid beamforming, among other advantages.

[0092] Figs. 6A and 6B are diagrams of example data structures 600 for a CSI-RS resource set configuration according to one or more implementations described herein. For example, Fig. 6A illustrates data structure 600-1 and Fig. 6B illustrates data structure 600-2. The data structures 600 can be used by a network to define a CSI-RS resource set and configuration information associated with the CSI-RS resource set (e.g., NZP-CSI-RS-ResourceSet). For example, the data structures 600 can be implemented by one or more devices of a network, including base station 222 and UE 210, to define operations and signaling thereof.

[0093] The data structures 600 can be used by the network for configuring the CSI-RS resource set and the slot offsets associated with each CSI-RS resource of the CSI-RS resource set. For example, base station 222 (e.g., or the network) can configure the data structures 600 and transmit a CSI-RS via the CSI-RS resource set in accordance with the data structures 244935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)600. In some examples, base station 222 can configure the data structures 600 based on UE capability reporting. For example, UE 210 can transmit a UE capability report to base station 222 which can be used to define the CSI-RS resource set for transmitting the CSI-RS. In some cases, the data structures 600 can be transmitted to UE 210 as part of a DCI or can be implemented by base station 222 for transmitting the CSI-RS in accordance with the data structures 600.

[0094] Each data structure 600 includes an information element (bolded) for configuring the slot offset for each CSI-RS resource. That is, each data structure 600 includes the information element, aperiodicSlotOffset-rl9, which can define the slot offsets for the CSI-RS resources of the CSI-RS resource set. Data structure 600-1 includes the information element, aperiodicSlotOffset-rl9, which can be associated with defining the slot offset as a fixed offset as described herein. Data structure 600-2 includes the information element, aperiodicSlotOffset-rl9, which can be associated with defining the slot offset as a dynamic offset, as described herein.

[0095] In data structure 600-1, the information element can contain one bit, which can indicate whether a fixed offset is applied. For example, a first value of the bit (e.g., “0”) can indicate that no slot offset is applied for a CSI-RS resource. Additionally, a second value of the bit (e.g., “1”) can indicate that a fixed offset is applied for the CSI-RS resource. In some examples, the information element can be at least partially represented by a Boolean bit indicating the slot offset (e.g., fixed offset).

[0096] In data structure 600-2, the information element can contain more than one bit, which can indicate more than one candidate slot offsets. That is, a first value of the more than one bit (e.g., “0”) can indicate that a first candidate slot offset is applied for the CSI-RS resource. Additionally, a second value of the more than one bit (e.g., “1”) can indicate that a second candidate slot offset is applied for the CSI-RS resource. Likewise, a third value of the more than one bit (e.g., “2”) can indicate that a third candidate slot offset is applied for the CSI-RS resource. In some examples, the more than one bit can indicate that no slot offset is applied. In some implementations, the information element can be at least partially represented by an integer value indicating the slot offset (e.g., the candidate slot offset). In some such implementations, an integer value in the information element can indicate selection of one or more candidate slot offsets from a quantity of candidate slot offsets.

[0097] Implementing the data structures 600 can support the network defining slot offsets for the CSI-RS resources, which can support hybrid beamforming at the network. For254935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)example, enabling the slot offsets can provide increased flexibility and improved compatibility between devices of the network implementing hybrid beamforming.

[0098] Figs. 7A and 7B are diagrams of example data structures 700 for a CSI reporting configuration according to one or more implementations described herein. For example, Fig.7A illustrates data structure 700-1 and Fig. 7B illustrates data structure 700-2. The data structures 700 can be used by a network to define CSI reporting associated with a CSI-RS resource set (e.g., CSI-AssociatedReportConfiglnfo). For example, the data structures 700 can be implemented by one or more devices of a network, including base station 222 and UE 210, to define operations and signaling thereof.

[0099] The data structures 700 can be used by the network for configuring the CSI reporting from UE 210. For example, base station 222 (e.g., or the network) can configure the data structures 700 and transmit configuration information for performing CSI reporting in accordance with the data structures 700 to UE 210. In some examples, base station 222 can configure the data structures 700 based on UE capability reporting. For example, UE 210 can transmit a UE capability report to base station 222 which can be used to define the CSI reporting in the data structures 700. In some cases, the data structures 700 can be transmitted to UE 210 as part of a DCI or can be implemented by base station 222 or UE 210 for performing CSI reporting in accordance with the data structures 700.

[0100] The data structures 700 define configuration information associated with performing CSI reporting for a CSI-RS transmitted using the CSI-RS resource set. That is, the data structures 700 can include configuration information defining the CSI-RS resource set, including slot offsets associated with each CSI-RS resource of the CSI-RS resource set. For example, each data structure 700 includes an information element (bolded) for configuring the slot offset for each CSI-RS resource. That is, each data structure 700 includes the information element, aperiodicSlotOffset-rl9, which can define the slot offsets for the CSI-RS resources of the CSI-RS resource set. Data structure 700-1 includes the information element, aperiodicSlotOffset-rl9, which can be associated with defining the slot offset as a fixed offset as described herein. Data structure 700-2 includes the information element, aperiodicSlotOffset-rl9, which can be associated with defining the slot offset as a dynamic offset, as described herein.

[0101] In data structure 700-1, the information element can contain one bit, which can indicate whether a fixed offset is applied. For example, a first value of the bit (e.g., “0”) can indicate that no slot offset is applied for a CSI-RS resource. Additionally, a second value of the bit (e.g., “1”) can indicate that a fixed offset is applied for the CSI-RS resource. In some 264935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)examples, the information element can be at least partially represented by a Boolean bit indicating the slot offset (e.g., fixed offset).

[0102] In data structure 700-2, the information element can contain more than one bit, which can indicate more than one candidate slot offsets. That is, a first value of the more than one bit (e.g., “0”) can indicate that a first candidate slot offset is applied for the CSI-RS resource. Additionally, a second value of the more than one bit (e.g., “1”) can indicate that a second candidate slot offset is applied for the CSI-RS resource. Likewise, a third value of the more than one bit (e.g., “2”) can indicate that a third candidate slot offset is applied for the CSI-RS resource. In some examples, the more than one bit can indicate that no slot offset is applied. In some implementations, the information element can be at least partially represented by an integer value indicating the slot offset (e.g., the candidate slot offset). In some such implementations, an integer value in the information element can indicate selection of one or more candidate slot offsets from a quantity of candidate slot offsets.

[0103] Implementing the data structures 700 can support the network defining slot offsets for the CSI-RS resources, which can support hybrid beamforming at the network. For example, enabling the slot offsets can provide increased flexibility and improved compatibility between devices of the network implementing hybrid beamforming.

[0104] Fig. 8 is a diagram of an example of components of a device according to one or more implementations described herein. In some implementations, device 800 can include application circuitry 802, baseband circuitry 804, RF circuitry 806, front-end module (FEM) circuitry 808, one or more antennas 810, and power management circuitry (PMC) 812 coupled together at least as shown. In some implementations, device 800 can include fewer elements (e.g., a RAN node may not utilize application circuitry 802 and can instead include a processor / controller to process data received from a core network. In some implementations, device 800 can include additional elements such as, for example, memory / storage, display, camera, sensor (including one or more temperature sensors, such as a single temperature sensor, a plurality of temperature sensors at different locations in device 800, etc.), or input / output (I / O) interface. In other implementations, the components described below can be included in more than one device (e.g., said circuitries can be separately included in more than one device for cloud-RAN (C-RAN) implementations).

[0105] Application circuitry 802 can include one or more application processors. For example, application circuitry 802 can include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processor(s) can include any combination of general-purpose processors and dedicated processors (e.g., graphics processors, application 274935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)processors, etc.). The processors can be coupled with or can include memory / storage and can be configured to execute instructions stored in the memory / storage to enable various applications or operating systems to run on device 800. In some implementations, processors of application circuitry 802 can process data packets received from a core network.

[0106] Baseband circuitry 804 can include circuitry such as, but not limited to, one or more single-core or multi-core processors. Baseband circuitry 804 can include one or more baseband processors or control logic to process baseband signals received from a receive signal path of RF circuitry 806 and to generate baseband signals for a transmit signal path of RF circuitry 806. Baseband circuitry 804 can interface with application circuitry 802 for generation and processing of the baseband signals and for controlling operations of RF circuitry 806. For example, in some implementations, baseband circuitry 804 can include a 3G baseband processor 804A, a 4G baseband processor 804B, a 5G baseband processor 804C, or other baseband processor(s) 804D for other existing generations, generations in development or to be developed in the future (e.g., 5G, 6G, 7G, etc.).

[0107] Baseband circuitry 804 (e.g., one or more of baseband processors 804A-D) can handle various radio control functions that enable communication with one or more radio networks via RF circuitry 806. In other implementations, some or all of the functionality of baseband processors 804A-D can be included in modules stored in memory 804G and executed via a central processing unit (CPU) 804E. The radio control functions can include, but are not limited to, signal modulation / demodulation, encoding / decoding, radio frequency shifting, etc. In some implementations, modulation / demodulation circuitry of baseband circuitry 804 can include Fast-Fourier Transform (FFT), precoding, or constellation mapping / de-mapping functionality. In some implementations, encoding / decoding circuitry of baseband circuitry 804 can include convolution, tail-biting convolution, turbo, Viterbi, or low-density parity check (LDPC) encoder / decoder functionality. Implementations of modulation / demodulation and encoder / decoder functionality are not limited to these examples and can include other suitable functionality in other implementations.

[0108] In some implementations, memory 804G can receive and / or store information and instructions for CMR configuration enhancement and UE capability reporting to support hybrid beamforming at a network. For example, UE 210 can transmit capability information to base station 222, which base station 222 can use to configure a CSI-RS resource set. The capability information can include a quantity of CSI-RS resources, a quantity of ports per CSI-RS resource, a total quantity of ports across the CSI-RS resources, or any combination thereof that the UE can support. The base station 222 can configure the CSI-RS resource set 284935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)such that each CSI-RS resource is associated with a slot offset. Implementing the slot offset can improve flexibility and configurability of the network for operating in accordance with hybrid beamforming operations, among other advantages. Many other aspects and examples are also described herein.

[0109] In some implementations, baseband circuitry 804 can include one or more audio digital signal processor(s) (DSP) 804F. Audio DSP 804F can include elements for compression / decompression and echo cancellation and can include other suitable processing elements in other implementations. Components of baseband circuitry 804 can be suitably combined in a single chip, a single chipset, or disposed on a same circuit board in some implementations. In some implementations, some or all of the constituent components of baseband circuitry 804 and application circuitry 802 can be implemented together such as, for example, on a system on a chip (SOC).

[0110] In some implementations, baseband circuitry 804 can provide for communication compatible with one or more radio technologies. For example, in some implementations, baseband circuitry 804 can support communication with a NG-RAN, an evolved universal terrestrial radio access network (EUTRAN) or other wireless metropolitan area networks (WMAN), a wireless local area network (WLAN), a wireless personal area network (WPAN), etc. Implementations in which baseband circuitry 804 is configured to support radio communications of more than one wireless protocol can be referred to as multi-mode baseband circuitry.[OHl] RF circuitry 806 can enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium. In various implementations, RF circuitry 806 can include switches, filters, amplifiers, etc., to facilitate the communication with the wireless network. RF circuitry 806 can include a receive signal path which can include circuitry to down-convert RF signals received from FEM circuitry 808 and provide baseband signals to baseband circuitry 804. RF circuitry 806 can also include a transmit signal path which can include circuitry to up-convert baseband signals provided by baseband circuitry 804 and provide RF output signals to FEM circuitry 808 for transmission.

[0112] In some implementations, the receive signal path of RF circuitry 806 can include mixer circuitry 806A, amplifier circuitry 806B and filter circuitry 806C. In some implementations, the transmit signal path of RF circuitry 806 can include filter circuitry 806C and mixer circuitry 806A. RF circuitry 806 can also include synthesizer circuitry 806D for synthesizing a frequency for use by mixer circuitry 806A of the receive signal path and the 294935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)transmit signal path. In some implementations, mixer circuitry 806A of the receive signal path can be configured to down-convert RF signals received from FEM circuitry 808 based on the synthesized frequency provided by synthesizer circuitry 806D. Amplifier circuitry 806B can be configured to amplify the down-converted signals and filter circuitry 806C can be a low-pass filter (LPF) or band-pass filter (BPF) configured to remove unwanted signals from the down-converted signals to generate output baseband signals. Output baseband signals can be provided to baseband circuitry 804 for further processing. In some implementations, the output baseband signals can be zero-frequency baseband signals, although this may not be a requirement. In some implementations, mixer circuitry 806A of the receive signal path can comprise passive mixers, although the scope of the implementations is not limited in this respect.

[0113] In some implementations, mixer circuitry 806A of the transmit signal path can be configured to up-convert input baseband signals based on the synthesized frequency provided by synthesizer circuitry 806D to generate RF output signals for FEM circuitry 808. The baseband signals can be provided by baseband circuitry 804 and can be filtered by filter circuitry 806C. In some implementations, mixer circuitry 806A of the receive signal path and mixer circuitry 806A of the transmit signal path can include two or more mixers and can be arranged for quadrature down conversion and up conversion, respectively. In some implementations, mixer circuitry 806A of the receive signal path and mixer circuitry 806A of the transmit signal path can include two or more mixers and can be arranged for image rejection. In some implementations, mixer circuitry 806 A of the receive signal path and mixer circuitry 806A can be arranged for direct down conversion and direct up conversion, respectively. In some implementations, mixer circuitry 806A of the receive signal path and mixer circuitry 806A of the transmit signal path can be configured for super-heterodyne operation.

[0114] In some implementations, the output baseband signals, and the input baseband signals can be analog baseband signals, although the scope of the implementations is not limited in this respect. In some alternate implementations, the output baseband signals, and the input baseband signals can be digital baseband signals. In these alternate implementations, RF circuitry 806 can include analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuitry and baseband circuitry 804 can include a digital baseband interface to communicate with RF circuitry 806.

[0115] In some dual-mode implementations, a separate radio integrated circuitry can be provided for processing signals for each spectrum, although the scope of the implementations 304935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)is not limited in this respect. In some implementations, synthesizer circuitry 806D can be a fractional -N synthesizer or a fractional N / N+l synthesizer, although the scope of the implementations is not limited in this respect as other types of frequency synthesizers can be suitable. For example, synthesizer circuitry 806D can be a delta-sigma synthesizer, a frequency multiplier, or a synthesizer comprising a phase-locked loop with a frequency divider.

[0116] Synthesizer circuitry 806D can be configured to synthesize an output frequency for use by mixer circuitry 806 A of RF circuitry 806 based on a frequency input and a divider control input. In some implementations, synthesizer circuitry 806D can be a fractional N / N+l synthesizer. In some implementations, frequency input can be provided by a voltage-controlled oscillator (VCO). Divider control input can be provided by either baseband circuitry 804 or the applications circuitry 802 depending on the desired output frequency. In some implementations, a divider control input (e.g., N) can be determined from a look-up table based on a channel indicated by the applications circuitry 802.

[0117] Synthesizer circuitry 806D of RF circuitry 806 can include a divider, a delay-locked loop (DLL), a multiplexer, and a phase accumulator. In some implementations, the divider can be a dual modulus divider (DMD), and the phase accumulator can be a digital phase accumulator (DPA). In some implementations, the DMD can be configured to divide the input signal by either N or N+l (e.g., based on a carry out) to provide a fractional division ratio. In some example implementations, the DLL can include a set of cascaded, tunable, delay elements, a phase detector, a charge pump and a D-type flip-flop. In these implementations, the delay elements can be configured to break a VCO period up into Nd equal packets of phase, where Nd is the number of delay elements in the delay line. In this way, the DLL provides negative feedback to help ensure that the total delay through the delay line is one VCO cycle.

[0118] In some implementations, synthesizer circuitry 806D can be configured to generate a carrier frequency as the output frequency, while in other implementations, the output frequency can be a multiple of the carrier frequency (e.g., twice the carrier frequency, four times the carrier frequency) and used in conjunction with quadrature generator and divider circuitry to generate multiple signals at the carrier frequency with multiple different phases with respect to each other. In some implementations, the output frequency can be a LO frequency (fLO). In some implementations, RF circuitry 806 can include an in-phase / quadrature (I / Q) / polar converter.314935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)

[0119] FEM circuitry 808 can include a receive signal path which can include circuitry configured to operate on RF signals received from one or more antennas 810, amplify the received signals and provide the amplified versions of the received signals to RF circuitry 806 for further processing. FEM circuitry 808 can also include a transmit signal path which can include circuitry configured to amplify signals for transmission provided by RF circuitry 806 for transmission by one or more of the one or more antennas 810. In various implementations, the amplification through the transmit or receive signal paths can be done solely in RF circuitry 806, solely in FEM circuitry 808, or in both RF circuitry 806 and FEM circuitry 808.

[0120] In some implementations, FEM circuitry 808 can include a transmit / receive switch to switch between transmit mode and receive mode operation. FEM circuitry 808 can include a receive signal path and a transmit signal path. The receive signal path of FEM circuitry 808 can include a low noise amplifier to amplify received RF signals and provide the amplified received RF signals as an output (e.g., to RF circuitry 806). The transmit signal path of FEM circuitry 808 can include a power amplifier to amplify input RF signals (e.g., provided by RF circuitry 806), and one or more filters to generate RF signals for subsequent transmission (e.g., by one or more of one or more antennas 810).

[0121] In some implementations, PMC 812 can manage power provided to baseband circuitry 804. In particular, PMC 812 can control power-source selection, voltage scaling, battery charging, or direct current (DC) to DC (DC-to-DC) conversion. PMC 812 can often be included when device 800 is capable of being powered by a battery, for example, when device 800 is included in a UE. PMC 812 can increase the power conversion efficiency while providing desirable implementation size and heat dissipation characteristics.

[0122] While Fig. 8 shows PMC 812 coupled only with baseband circuitry 804.However, in other implementations, PMC 812 can be additionally or alternatively coupled with, and perform similar power management operations for, other components such as, but not limited to, application circuitry 802, RF circuitry 806, or FEM circuitry 808.

[0123] In some implementations, PMC 812 can control, or otherwise be part of, various power saving mechanisms of device 800. For example, if device 800 is in anRRC Connected state, where device 800 is still connected to the RAN node as device 800 expects to receive traffic shortly, then device 800 can enter a state known as discontinuous reception mode (DRX) after a period of inactivity. During this state, device 800 can power down for brief intervals of time and thus save power.324935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)

[0124] If there is no data traffic activity for an extended period of time, then device 800 can transition off to an RRC Idle state, where device 800 disconnects from the network and does not perform operations such as channel quality feedback, handover, etc. Device 800 can go into a very low power state and device 800 can perform paging where again device 800 periodically can wake up to listen to the network and then power down again. Device 800 may not receive data in this state; in order to receive data, device 800 can transition back to RRC Connected state.

[0125] An additional power saving mode can allow a device to be unavailable to the network for periods longer than a paging interval (ranging from seconds to a few hours). During this time, the device 800 can be unreachable to the network and can power down completely. Any data sent during this time can incur a large delay and device 800 can assume the delay is acceptable.

[0126] Processors of application circuitry 802 and processors of baseband circuitry 804 can be used to execute elements of one or more instances of a protocol stack. For example, processors of baseband circuitry 804, alone or in combination, can be used execute Layer 3, Layer 2, or Layer 1 functionality, while processors of baseband circuitry 804 can utilize data (e.g., packet data) received from these layers and further execute Layer 4 functionality (e.g., transmission communication protocol (TCP) and user datagram protocol (UDP) layers). As referred to herein, Layer 3 can comprise a radio resource control layer. As referred to herein, Layer 2 can comprise a medium access control layer, a radio link control layer, and a packet data convergence protocol layer, described in further detail below. As referred to herein, Layer 1 can comprise a physical layer of a UE / RAN node.

[0127] Fig. 9 is a diagram of example interfaces 900 of baseband circuitry according to one or more implementations described herein. One or more components or features of example interfaces 900 can correspond to one or more components or features described above or elsewhere. Baseband circuitry 904 can comprise processors 904A, 904B, 904C, 904D, and 904E and a memory 904G utilized by said processors. Each of processors 904A, 904B, 904C, 904D, and 904E can include a memory interface, 906A, 906B, 906C, 906D, and 906E, respectively, to send / receive data to / from memory 904G. Baseband circuitry can be a component of a UE and / or another type of device or system capable of transmitting and / or receiving wireless signals.

[0128] Baseband circuitry 904 can further include one or more interfaces to communicatively couple to other circuitries / devices, such as memory interface 9012 (e.g., an interface to send / receive data to / from memory external to baseband circuitry 904), an334935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)application circuitry interface 9014 (e.g., an interface to send / receive data to / from the application circuitry as described herein), an RF circuitry interface 9016, a wireless hardware connectivity interface 9018 (e.g., an interface to send / receive data to / from near field communication components, Bluetooth® components (e.g., Bluetooth® Low Energy), WiFi® components, and other communication components), and a power management interface 9020 (e.g., an interface to send / receive power or control signals to / from a PMC).

[0129] Fig. 10 is a block diagram illustrating components, according to some example implementations, able to read instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium) and perform any one or more of the methodologies discussed herein. Specifically, Fig. 10 shows a diagrammatic representation of hardware resources 1000 including one or more processors 1010 (or processor cores), one or more memory / storage devices 1020, and one or more communication resources 1030, each of which can be communicatively coupled via a bus 1040. For implementations where node virtualization or network function virtualization is utilized, a hypervisor can be executed to provide an execution environment for one or more network slices / sub-slices to utilize hardware resources 1000. Hardware resources 1000 can interact with hypervisor 1002. For example, hypervisor 1002 can schedule or otherwise manage hardware resource 1000.

[0130] Processors 1010 (e.g., a central processing unit (CPU), a reduced instruction set computing (RISC) processor, a complex instruction set computing (CISC) processor, a graphics processing unit (GPU), a digital signal processor (DSP) such as a baseband processor, an application specific integrated circuit (ASIC), a radio-frequency integrated circuit (RFIC), another processor, or any suitable combination thereof) can include, for example, a processor 1012 and a processor 1014.

[0131] Memory / storage devices 1020 can include main memory, disk storage, or any suitable combination thereof. Memory / storage devices 1020 can include, but are not limited to any type of volatile or non-volatile memory such as dynamic random-access memory (DRAM), static random-access memory (SRAM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), flash memory, solid-state storage, etc.

[0132] In some implementations, memory / storage devices 1020 receive and / or store information and instructions 1055 for CMR configuration enhancement and UE capability reporting to support hybrid beamforming at a network. For example, UE 210 can transmit capability information to base station 222, which base station 222 can use to configure a CSI- 344935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)RS resource set. The capability information can include a quantity of CSI-RS resources, a quantity of ports per CSI-RS resource, a total quantity of ports across the CSI-RS resources, or any combination thereof that the UE can support. The base station 222 can configure the CSI-RS resource set such that each CSI-RS resource is associated with a slot offset.Implementing the slot offset can improve flexibility and configurability of the network for operating in accordance with hybrid beamforming operations, among other advantages. Many other aspects and examples are also described herein.

[0133] Communication resources 1030 can include interconnection or network interface components or other suitable devices to communicate with one or more peripheral devices 1004 or one or more databases 1006 via a network 1008. For example, communication resources 1030 can include wired communication components (e.g., for coupling via a universal serial bus), cellular communication components, near field communication components, Bluetooth® components (e.g., Bluetooth® Low Energy), Wi-Fi® components, and other communication components.

[0134] Instructions 1050A, 1050B, 1050C, 1050D, and / or 1050E can comprise software, a program, an application, an applet, an app, or other executable code for causing at least any of processors 1010 to perform any one or more of the methodologies discussed herein.Instructions 1050 can reside, completely or partially, within at least one of processors 1010 (e.g., within a cache memory), memory / storage devices 1020, or any suitable combination thereof. Furthermore, any portion of instructions 1050A-E can be transferred to hardware resources 1000 from any combination of peripheral devices 1004 or databases 1006.Accordingly, memory of processors 1010, memory / storage devices 1020, peripheral devices 1004, and databases 1006 are examples of computer-readable and machine-readable media.

[0135] Fig. 11 is a diagram of an example process 1100 for CMR configuration enhancement and UE capability reporting according to one or more implementations described herein. As shown, process 1100 can be implemented by base station 222 (e.g., baseband circuitry of base station 222) or another type of network access device. In some implementations, some or all of process 1100 can be performed by one or more other systems or devices, including one or more of the devices of Fig. 2. Additionally, process 1100 can include one or more fewer, additional, differently ordered and / or arranged operations than those shown in Fig. 11. In some implementations, some or all of the operations of process 1100 can be performed independently, successively, simultaneously, etc., of one or more of the other operations of process 1100. As such, the techniques described herein are not limited354935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)to the number, sequence, arrangement, timing, etc., of the operations or processes depicted in Fig. H.

[0136] As shown, process 1100 can include receiving user equipment (UE) capability information (block 1110). Process 1100 can include determining, based on the UE capability information, a channel state information (CSI) reference signal (CSI-RS) resource set including a plurality of CSI-RS resources and a corresponding slot offset for each CSI-RS resource of the plurality of CSI-RS resources (block 1120). Process 1100 can include transmitting a CSI-RS according to the CSI-RS resource set (block 1130). One or more of the examples described herein can also, or alternatively, be part of process 1100.

[0137] Fig. 12 is a diagram of an example process 1200 for CMR configuration enhancement and UE capability reporting according to one or more implementations described herein. As shown, process 1200 can be implemented by UE 210 and / or baseband circuitry 804. In some implementations, some or all of process 1200 can be performed by one or more other systems or devices, including one or more of the devices of Fig. 2.Additionally, process 1200 can include one or more fewer, additional, differently ordered and / or arranged operations than those shown in Fig. 12. In some implementations, some or all of the operations of process 1200 can be performed independently, successively, simultaneously, etc., of one or more of the other operations of process 1200. As such, the techniques described herein are not limited to the number, sequence, arrangement, timing, etc., of the operations or processes depicted in Fig. 12.

[0138] As shown, process 1200 can include transmitting UE capability information (block 1210). Process 1200 can include receiving, after transmitting the UE capability information, downlink control information (DCI) including an indication of a channel state information (CSI) reference signal (CSI-RS) resource set comprising a plurality of CSI-RS resources and a corresponding slot offset for each CSI-RS resource of the plurality of CSI-RS resources (block 1220). Process 1200 can include receiving a CSI-RS according to the CSI-RS resource set (1230). One or more of the examples described herein can also, or alternatively, be part of process 1200.

[0139] Examples herein can include subject matter such as a method, means for performing acts or blocks of the method, at least one machine-readable medium including executable instructions that, when performed by a machine (e.g., a processor (e.g., processor, etc.) with memory, an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or the like) cause the machine to perform acts of the method or of an364935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)apparatus or system for concurrent communication using multiple communication technologies according to implementations and examples described.

[0140] In example 1, which can also include one or more of the examples described herein, a base station can include one or more processors configured to: receive user equipment (UE) capability information; determine, based on the UE capability information, a channel state information (CSI) reference signal (CSI-RS) resource set including a plurality of CSI-RS resources and a corresponding slot offset for each CSI-RS resource of the plurality of CSI-RS resources; and transmit a CSI-RS according to the CSI-RS resource set.

[0141] In example 2, which can also include one or more of the examples described herein, the UE capability information can include an indication of a quantity of CSI-RS resources, a quantity of ports per CSI-RS resource, or a total quantity of ports, or any combination thereof.

[0142] In example 3, which can also include one or more of the examples described herein, the one or more processors are further configured to: transmit downlink control information (DCI) including an indication of the CSI-RS resource set and configuration information associated with the CSI-RS resource set, the configuration information including an indication of the corresponding slot offset for each CSI-RS resource, where transmitting the CSI-RS according to the CSI-RS resource set is based on transmitting the DCI.

[0143] In example 4, which can also include one or more of the examples described herein, to transmit the DCI, the one or more processors are further configured to: trigger an offset defining a reference location in time from which the corresponding slot offsets are applied for each CSI-RS resource of the plurality of CSI-RS resources.

[0144] In example 5, which can also include one or more of the examples described herein, the corresponding slot offset for each CSI-RS resource of the plurality of CSI-RS resources can include a fixed offset, a dynamic offset, or an indication of no offset.

[0145] In example 6, which can also include one or more of the examples described herein, the fixed offset indicates a slot for implementing the corresponding CSI-RS resource of the plurality of CSI-RS resources; the dynamic offset indicates a selection of a slot offset from a plurality of candidate slot offsets, where the selected slot offset indicates a slot of a plurality of slots corresponding to the plurality of candidate slot offsets, the slot implementing the corresponding CSI-RS resource of the plurality of CSI-RS resources; and the indication of no offset indicates that no slot offset is applied for the corresponding CSI-RS resource of the plurality of CSI-RS resources.374935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)

[0146] In example 7, which can also include one or more of the examples described herein, the fixed offset and the indication of no offset are represented by a single bit in configuration information associated with the CSI-RS resource set or configuration information associated with CSI report setting corresponding to the CSI-RS resource set.

[0147] In example 8, which can also include one or more of the examples described herein, the dynamic offset is represented by more than one bit in configuration information associated with the CSI-RS resource set or configuration information associated with CSI report setting corresponding to the CSI-RS resource set.

[0148] In example 9, which can also include one or more of the examples described herein, to determine the CSI-RS resource set, the one or more processors are further configured to: configure a first CSI-RS resource of the plurality of CSI-RS resources with a first slot offset defining implementing the first CSI-RS resource in a first slot; and configure a second CSI-RS resource of the plurality of CSI-RS resources with a second slot offset defining implementing the second CSI-RS resource in a second slot.

[0149] In example 10, which can also include one or more of the examples described herein, to determine the CSI-RS resource set, the one or more processors are further configured to: configure a third CSI-RS resource of the plurality of CSI-RS resources with a third slot offset defining implementing the third CSI-RS resource in the first slot.

[0150] In example 11, which can also include one or more of the examples described herein, to determine the CSI-RS resource set, the one or more processors are further configured to: configure each CSI-RS resource of the plurality of CSI-RS resources with the corresponding slot offset based on available slots for performing downlink transmissions.

[0151] In example 12, which can also include one or more of the examples described herein, to transmit the CSI-RS according to the CSI-RS resource set, the one or more processors are further configured to: transmit the CSI-RS according to the CSI-RS resource set where each CSI-RS resource of the plurality of CSI-RS resources is offset to an available slot based on configuring each CSI-RS resource with the corresponding slot offset.

[0152] In example 13, which can also include one or more of the examples described herein, to transmit the CSI-RS according to the CSI-RS resource set, the one or more processors are further configured to: refrain from transmitting the CSI-RS in unavailable slots for performing uplink transmissions based on configuring each CSI-RS resource of the plurality of CSI-RS resources with the corresponding slot offset.

[0153] In example 14, which can also include one or more of the examples described herein, the one or more processors are further configured to: determine the available slots,384935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)where configuring each CSI-RS resource of the plurality of CSI-RS resources with the corresponding slot offset is based on determining the available slots.

[0154] In example 15, which can also include one or more of the examples described herein, the one or more processors are further configured to: refrain from performing operations or signaling that can reconfigure the available slots to unavailable slots for a duration associated with transmitting the CSI-RS according to the CSI-RS resource set.

[0155] In example 16, which can also include one or more of the examples described herein, the UE capability information is based on a first codebook or a second codebook.

[0156] In example 17, which can also include one or more of the examples described herein, the one or more processors are further configured to: receive, based on transmitting the CSI-RS, one or more CSI report settings including CSI associated with the CSI-RS.

[0157] In example 18, which can also include one or more of the examples described herein, a user equipment (UE) can include a memory storing one or more instructions and one or more processors. The one or more processors can be configured to, when executing the one or more instructions, cause the UE to: transmit UE capability information; receive, in response to transmitting the UE capability information, downlink control information (DCI) including an indication of a channel state information (CSI) reference signal (CSI-RS) resource set including a plurality of CSI-RS resources and a corresponding slot offset for each CSI-RS resource of the plurality of CSI-RS resources; and receive a CSI-RS according to the CSI-RS resource set.

[0158] In example 19, which can also include one or more of the examples described herein, the UE capability information can include an indication of a quantity of CSI-RS resources, a quantity of ports per CSI-RS resource, or a total quantity of ports, or any combination thereof.

[0159] In example 20, which can also include one or more of the examples described herein, when executing the one or more instructions to receive the DCI, the one or more processors are further configured to: trigger an offset defining a reference location in time from which the corresponding slot offsets are applied for each CSI-RS resource of the plurality of CSI-RS resources.

[0160] In example 21, which can also include one or more of the examples described herein, the corresponding slot offset for each CSI-RS resource of the plurality of CSI-RS resources can include a fixed offset, a dynamic offset, or an indication of no offset.

[0161] In example 22, which can also include one or more of the examples described herein, the fixed offset indicates a slot for implementing the corresponding CSI-RS resource 394935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)of the plurality of CSI-RS resources; the dynamic offset indicates a selection of a slot offset from a plurality of candidate slot offsets, where the selected slot offset indicates a slot of a plurality of slots corresponding to the plurality of candidate slot offsets, the slot implementing the corresponding CSI-RS resource of the plurality of CSI-RS resources; and the indication of no offset indicates that no slot offset is applied for the corresponding CSI-RS resource of the plurality of CSI-RS resources.

[0162] In example 23, which can also include one or more of the examples described herein, the fixed offset and the indication of no offset are represented by a single bit in configuration information associated with the CSI-RS resource set or configuration information associated with CSI report setting corresponding to the CSI-RS resource set.

[0163] In example 24, which can also include one or more of the examples described herein, the dynamic offset is represented by more than one bit in configuration information associated with the CSI-RS resource set or configuration information associated with CSI report setting corresponding to the CSI-RS resource set.

[0164] In example 25, which can also include one or more of the examples described herein, when executing the one or more instructions to receive the CSI-RS according to the CSI-RS resource set, the one or more processors are further configured to: receive a first portion of the CSI-RS according to a first CSI-RS resource of the plurality of CSI-RS resources based on the first CSI-RS resource being configured with a first slot offset corresponding to implementing the first CSI-RS resource in a first slot; and receive a second portion of the CSI-RS according to a second CSI-RS resource of the plurality of CSI-RS resources based on the second CSI-RS resource being configured with a second slot offset corresponding to implementing the second CSI-RS resource in a second slot.

[0165] In example 26, which can also include one or more of the examples described herein, when executing the one or more instructions to receive the CSI-RS according to the CSI-RS resource set, the one or more processors are further configured to: receive a third portion of the CSI-RS according to a third CSI-RS resource of the plurality of CSI-RS resources based on the third CSI-RS resource being configured with a third slot offset corresponding to implementing the third CSI-RS resource in the first slot.

[0166] In example 27, which can also include one or more of the examples described herein, when executing the one or more instructions to receive the CSI-RS according to the CSI-RS resource set, the one or more processors are further configured to: receive the CSI-RS according to the CSI-RS resource set during available slots for performing downlink404935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)transmissions based on each CSI-RS resource of the plurality of CSI-RS resources being implemented in an available slot due to the corresponding slot offset.

[0167] In example 28, which can also include one or more of the examples described herein, the UE capability information can include an indication of the UE’s capability for receiving the CSI-RS according to the CSI-RS resource set during available slots.

[0168] In example 29, which can also include one or more of the examples described herein, when executing the one or more instructions to receive the CSI-RS according to the CSI-RS resource set, the one or more processors are further configured to: refrain from receiving the CSI-RS during unavailable slots for performing uplink transmissions based on each CSI-RS resource of the plurality of CSI-RS resources being implemented in an available slot.

[0169] In example 30, which can also include one or more of the examples described herein, the UE capability information is based on a first codebook or a second codebook.

[0170] In example 31, which can also include one or more of the examples described herein, when executing the one or more instructions, the one or more processors are further configured to: perform one or more measurements using the CSI-RS to determine CSI associated with the CSI-RS; generate one or more CSI reports based on determining the CSI; and transmit the one or more CSI reports.

[0171] In example 32, which can also include one or more of the examples described herein, the UE capability information can include: an indication of a quantity of channel state CSI-RS resources including 2 to 8 CSI-RS resources, an indication of a quantity of ports per CSI-RS resource including 16 ports per CSI-RS resource or 32 ports per CSI-RS resource, or an indication of a total quantity of ports including 64 to 128 ports, or any combination thereof.

[0172] In example 33, which can also include one or more of the examples described herein, baseband circuitry can include one or more processors configured to: obtain user equipment (UE) capability information; determine, based on the UE capability information, a channel state information (CSI) reference signal (CSI-RS) resource set including a plurality of CSI-RS resources and a corresponding slot offset for each CSI-RS resource of the plurality of CSI-RS resources; and transmit a CSI-RS according to the CSI-RS resource set.

[0173] The above description of illustrated examples, implementations, aspects, etc., of the subject disclosure, including what is described in the Abstract, is not intended to be exhaustive or to limit the disclosed aspects to the precise forms disclosed. While specific examples, implementations, aspects, etc., are described herein for illustrative purposes,414935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)various modifications are possible that are considered within the scope of such examples, implementations, aspects, etc., as those skilled in the relevant art can recognize.

[0174] In this regard, while the disclosed subject matter has been described in connection with various examples, implementations, aspects, etc., and corresponding Figures, where applicable, it is to be understood that other similar aspects can be used or modifications and additions can be made to the disclosed subject matter for performing the same, similar, alternative, or substitute function of the subject matter without deviating therefrom.Therefore, the disclosed subject matter should not be limited to any single example, implementation, or aspect described herein, but rather should be construed in breadth and scope in accordance with the appended claims below.

[0175] In particular regard to the various functions performed by the above described components or structures (assemblies, devices, circuits, systems, etc.), the terms (including a reference to a “means”) used to describe such components are intended to correspond, unless otherwise indicated, to any component or structure which performs the specified function of the described component (e.g., that is functionally equivalent), even though not structurally equivalent to the disclosed structure which performs the function in the herein illustrated exemplary implementations. In addition, while a particular feature can have been disclosed with respect to only one of several implementations, such feature can be combined with one or more other features of the other implementations as can be desired and advantageous for any given application.

[0176] As used herein, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or”. That is, unless specified otherwise, or clear from context, “X employs A or B” is intended to mean any of the natural inclusive permutations. That is, if X employs A; X employs B; or X employs both A and B, then “X employs A or B” is satisfied under any of the foregoing instances. In addition, the articles “a” and “an” as used in this application and the appended claims should generally be construed to mean “one or more” unless specified otherwise or clear from context to be directed to a singular form. Furthermore, to the extent that the terms “including”, “includes”, “having”, “has”, “with”, or variants thereof are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term “comprising.” Additionally, in situations wherein one or more numbered items are discussed (e.g., a “first X”, a “second X”, etc.), in general the one or more numbered items can be distinct, or they can be the same, although in some situations the context can indicate that they are distinct or that they are the same.424935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)

[0177] It is well understood that the use of personally identifiable information should follow privacy policies and practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy of users. In particular, personally identifiable information data should be managed and handled to minimize risks of unintentional or unauthorized access or use, and the nature of authorized use should be clearly indicated to users.4935-1323-7894, v. 4

Claims

Docket No. 106842260040 (P70862WO1)CLAIMSWhat is claimed is:

1. Abase station comprising:one or more processors configured to:receive user equipment (UE) capability information;determine, based on the UE capability information, a channel state information (CSI) reference signal (CSLRS) resource set comprising a plurality of CSLRS resources and a corresponding slot offset for each CSLRS resource of the plurality of CSLRS resources; andtransmit a CSLRS according to the CSLRS resource set.

2. The base station of claim 1, wherein the UE capability information comprises an indication of a quantity of CSLRS resources, a quantity of ports per CSLRS resource, or a total quantity of ports, or any combination thereof.

3. The base station of claim 1, wherein the one or more processors are further configured to: transmit downlink control information (DCI) comprising an indication of the CSLRS resource set and configuration information associated with the CSLRS resource set, the configuration information comprising an indication of the corresponding slot offset for each CSLRS resource,wherein transmitting the CSLRS according to the CSLRS resource set is based on transmitting the DCI.

4. The base station of claim 3, wherein, to transmit the DCI, the one or more processors are further configured to:trigger an offset defining a reference location in time from which the corresponding slot offsets are applied for each CSLRS resource of the plurality of CSLRS resources.

5. The base station of claim 1, wherein the corresponding slot offset for each CSLRS resource of the plurality of CSLRS resources comprises a fixed offset, a dynamic offset, or an indication of no offset.444935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)6. The base station of claim 5, wherein:the fixed offset indicates a slot for implementing the corresponding CSI-RS resource of the plurality of CSI-RS resources;the dynamic offset indicates a selection of a slot offset from a plurality of candidate slot offsets, wherein the selected slot offset indicates a slot of a plurality of slots corresponding to the plurality of candidate slot offsets, the slot implementing the corresponding CSI-RS resource of the plurality of CSI-RS resources; andthe indication of no offset indicates that no slot offset is applied for the corresponding CSI-RS resource of the plurality of CSI-RS resources.

7. The base station of claim 5, wherein the fixed offset and the indication of no offset are represented by a single bit in configuration information associated with the CSI-RS resource set or configuration information associated with CSI report setting corresponding to the CSI-RS resource set.

8. The base station of claim 5, wherein the dynamic offset is represented by more than one bit in configuration information associated with the CSI-RS resource set or configuration information associated with CSI report setting corresponding to the CSI-RS resource set.

9. The base station of claim 1, wherein, to determine the CSI-RS resource set, the one or more processors are further configured to:configure a first CSI-RS resource of the plurality of CSI-RS resources with a first slot offset defining implementing the first CSI-RS resource in a first slot; andconfigure a second CSI-RS resource of the plurality of CSI-RS resources with a second slot offset defining implementing the second CSI-RS resource in a second slot.

10. The base station of claim 1, wherein, to determine the CSI-RS resource set, the one or more processors are further configured to:configure each CSI-RS resource of the plurality of CSI-RS resources with the corresponding slot offset based on available slots for performing downlink transmissions.454935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)11. The base station of claim 10, wherein, to transmit the CSI-RS according to the CSI-RS resource set, the one or more processors are further configured to:transmit the CSI-RS according to the CSI-RS resource set wherein each CSI-RS resource of the plurality of CSI-RS resources is offset to an available slot based on configuring each CSI-RS resource with the corresponding slot offset.

12. Baseband circuitry comprising:one or more processors configured to:transmit user equipment (UE) capability information;receive, after transmitting the UE capability information, downlink control information (DCI) comprising an indication of a channel state information (CSI) reference signal (CSI-RS) resource set comprising a plurality of CSI-RS resources and a corresponding slot offset for each CSI-RS resource of the plurality of CSI-RS resources; andreceive a CSI-RS according to the CSI-RS resource set.

13. The baseband circuitry of claim 12, wherein the UE capability information comprises an indication of a quantity of CSI-RS resources, a quantity of ports per CSI-RS resource, or a total quantity of ports, or any combination thereof.

14. The baseband circuitry of claim 12, wherein the one or more processors are further configured to:trigger an offset defining a reference location in time from which the corresponding slot offsets are applied for each CSI-RS resource of the plurality of CSI-RS resources.

15. The baseband circuitry of claim 12, wherein the corresponding slot offset for each CSI-RS resource of the plurality of CSI-RS resources comprises a fixed offset, a dynamic offset, or an indication of no offset.

16. The baseband circuitry of claim 15, wherein:the fixed offset indicates a slot for implementing the corresponding CSI-RS resource of the plurality of CSI-RS resources;the dynamic offset indicates a selection of a slot offset from a plurality of candidate slot offsets, wherein the selected slot offset indicates a slot of a plurality of slots corresponding to 464935-1323-7894, v. 4Docket No. 106842260040 (P70862WO1)the plurality of candidate slot offsets, the slot implementing the corresponding CSI-RS resource of the plurality of CSI-RS resources; andthe indication of no offset indicates that no slot offset is applied for the corresponding CSI-RS resource of the plurality of CSI-RS resources.

17. The baseband circuitry of claim 15, wherein:the fixed offset and the indication of no offset are represented by a single bit in configuration information associated with the CSI-RS resource set or configuration information associated with CSI report setting corresponding to the CSI-RS resource set; and the dynamic offset is represented by more than one bit in the configuration information associated with the CSI-RS resource set or the configuration information associated with the CSI report setting corresponding to the CSI-RS resource set.

18. The baseband circuitry of claim 12, wherein the one or more processors are further configured to:receive the CSI-RS according to the CSI-RS resource set during available slots for performing downlink transmissions based on each CSI-RS resource of the plurality of CSI-RS resources being implemented in an available slot due to the corresponding slot offset.

19. The baseband circuitry of claim 12, wherein the UE supports a first codebook and a second codebook, and wherein the UE capability information is associated with the first codebook or the second codebook.

20. A user equipment (UE) comprising:a memory storing one or more instructions; andone or more processors configured to, when executing the one or more instructions, cause the UE to:transmit UE capability information;receive, after transmitting the UE capability information, downlink control information (DCI) comprising an indication of a channel state information (CSI) reference signal (CSI-RS) resource set comprising a plurality of CSI-RS resources and a corresponding slot offset for each CSI-RS resource of the plurality of CSI-RS resources; andreceive a CSI-RS according to the CSI-RS resource set.474935-1323-7894, v. 4

Images