Capability aware beam reporting for uplink transmissions

Abstract

Various example embodiments relate to capability aware beam reporting for uplink (UL) transmissions. An apparatus may receive a transmission of a plurality of downlink reference signals, DL RSs, from a network node. The apparatus may measure a DL RS for at least one set of capability values of a user equipment (UE), each set of capability values associated with a set of one or more antenna ports of the UE. The apparatus may transmit, to a network node, a report identifying one or more DL RS resources and one or more sets of capability values.

Description

Technical Field

[0001] Various example embodiments relate generally to the field of wireless communications. Some example embodiments relate to capability-aware beam reporting for uplink (UL) transmissions. Background Art

[0002] In terms of antenna ports, a user equipment (UE) may be configured with various UE capabilities. Summary of the invention

[0003] The present summary is provided to introduce selected concepts in a simplified form, which are further described in the following detailed description. The present summary is not intended to identify key features or essential features of the claimed technical solution, nor is it intended to be used to limit the scope of the claimed technical solution.

[0004] Example embodiments provide UE capability aware beam selection and / or reporting for UL transmissions. Example embodiments improve the throughput and / or reliability of UL transmissions. This and other benefits may be achieved by the features of the independent claims. Further example embodiments are provided in the dependent claims, the description and the drawings.

[0005] According to a first aspect, an apparatus may include: at least one processor; and at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to utilize the at least one processor together to cause the apparatus to at least perform operations, the operations including: receiving a transmission of multiple downlink reference signals DL RS from a network node; measuring multiple DL RSs for at least one capability value set of a user equipment UE, each capability value set being associated with a set of one or more antenna ports of the UE; and transmitting a report identifying one or more DL RS resources and one or more capability value sets to the network node.

[0006] According to an example embodiment of the first aspect, the report comprises a first report identifying at least two first DL RS resources and at least two first capability value sets.

[0007] According to an example embodiment of the first aspect, the first report indicates simultaneous transmission of at least two beams in an uplink, each of the at least two beams is associated with a corresponding one of at least two first DL RS resources, and each of the at least two beams is transmitted via a group of antenna port groups associated with a corresponding one of at least two first capability value sets.

[0008] According to an example embodiment of the first aspect, the report includes a first report when the criteria of the first set are met, and the criteria of the first set include one or more of the following: each of the at least two first DL RS resources identified in the first report is associated with a different first capability value set; the reference signal received power (RSRP) of at least two first DL RS resources is higher than a first threshold; the difference between the RSRPs of at least two first DL RS resources is lower than a second threshold; and the ability of the UE to transmit simultaneously using two first capability value sets.

[0009] According to an example embodiment of the first aspect, the report comprises a second report identifying at least two second DL RS resources and a single set of second capability values.

[0010] According to an example embodiment of the first aspect, the second report indicates simultaneous transmission of at least two beams in an uplink, each of the at least two beams being associated with a corresponding one of at least two second DL RS resources, and the at least two beams being transmitted via a set of antenna ports associated with a single second capability value set.

[0011] According to an example embodiment of the first aspect, the report includes a second report when the criteria of the second set are met, and the criteria of the second set include one or more of the following: at least two second DL RS resources are associated with the same second capability value set; the RSRP of at least two second DL RS resources is higher than the first threshold; and the difference between the RSRP of at least two second DL RS resources is lower than the second threshold.

[0012] According to an example embodiment of the first aspect, the report comprises a third report identifying a single third DL RS resource and a single third capability value set.

[0013] According to an example embodiment of the first aspect, the third report indicates transmission of a single beam in uplink, the single beam being associated with a single third DL RS resource and being transmitted via a set of antenna ports associated with a single set of third capability values.

[0014] According to an exemplary embodiment of the first aspect, each group of antenna ports corresponds to a different antenna panel of the UE.

[0015] According to an exemplary embodiment of the first aspect, the simultaneous transmission of at least two beams or the transmission of a single beam comprises the transmission of a sounding reference signal SRS.

[0016] According to an exemplary embodiment of the first aspect, each capability value set includes one or more of the following: the number of antenna ports, the number of beams of the antenna ports, the achievable transmission power of the antenna ports, and on and off times of the antenna ports.

[0017] According to an exemplary embodiment of the first aspect, the DL RSs are grouped into a plurality of DL RS sets, each DL RS set being received from a different transmission reception point TRP.

[0018] According to an exemplary embodiment of the first aspect, the DL RSs are grouped into a plurality of sets, each DL RS set including one or more of the following: a synchronization signal block SSB; and a channel state information reference signal CSI-RS.

[0019] According to an example embodiment of the first aspect, the report includes one or more of a first report, a second report or a third report in a single beam report instance, wherein the beam report instance is configured such that: N first entries correspond to one or more first reports; M adjacent entries correspond to one or more second reports; and L last entries correspond to one or more second reports, wherein N, M and L are fixed or configurable by the network node.

[0020] According to a second aspect, a method may include: receiving a transmission of multiple DL RSs from a network node; measuring the multiple DL RSs for at least one capability value set of a UE, each capability value set being associated with a set of one or more antenna ports of the UE; and transmitting a report identifying one or more DL RS resources and one or more capability value sets to the network node.

[0021] According to a third aspect, a computer program may include instructions for causing a device to perform at least the following operations: receive a transmission of multiple downlink DL RSs from a network node; measure multiple DLRSs for at least one capability value set of a UE, each capability value set being associated with a set of one or more antenna ports of the UE; and transmit a report identifying one or more DL RS resources and one or more capability value sets to the network node.

[0022] According to a fourth aspect, an apparatus comprises: a component for receiving a transmission of multiple DL RSs from a network node; a component for measuring multiple DL RSs for at least one capability value set of a UE, each capability value set being associated with a set of one or more antenna ports of the UE; and a component for transmitting a report identifying one or more DL RS resources and one or more capability value sets to the network node.

[0023] According to the fifth aspect, a device may include: at least one processor; and at least one memory, including computer program code, the at least one memory and the computer program code being configured to utilize the at least one processor together to cause the device to at least perform operations, the operations including: transmitting multiple DL RSs to a UE; and receiving a report from the UE identifying one or more DL RS resources and one or more capability value sets, the one or more DL RS resources and the one or more capability value sets being based on measuring multiple DL RSs at the UE for at least one capability value set of the UE, each capability value set being associated with a set of one or more antenna ports of the UE.

[0024] According to an example embodiment of the fifth aspect, the report comprises a first report identifying at least two first DL RS resources and at least two first capability value sets.

[0025] According to an example embodiment of the fifth aspect, the first report indicates simultaneous transmission of at least two beams in an uplink, each of the at least two beams is associated with a corresponding one of at least two first DL RS resources, and each of the at least two beams is transmitted via a set of antenna ports associated with a corresponding one of at least two first capability value sets.

[0026] According to an example embodiment of the fifth aspect, when the criteria of the first set are met, the report includes a first report, and the criteria of the first set include one or more of the following: each of the at least two first DL RS resources identified in the first report is associated with a different first capability value set; the reference signal received power RSRP in at least two first DL RS resources is higher than a first threshold; the difference between the RSRP of at least two first DL RS resources is lower than a second threshold; and the ability of the UE to transmit simultaneously using two first capability value sets.

[0027] According to an example embodiment of the fifth aspect, the report comprises a second report identifying at least two second DL RS resources and a single set of second capability values.

[0028] According to an example embodiment of the fifth aspect, the second report indicates simultaneous transmission of at least two beams in the uplink, each of the at least two beams is associated with a corresponding one of at least two second DL RS resources, and the at least two beams are transmitted via a set of antenna ports associated with a single second capability value set.

[0029] According to an example embodiment of the fifth aspect, the report includes a second report when the criteria of the second set are met, and the criteria of the second set include one or more of the following: at least two second DL RS resources are associated with the same second capability value set; the RSRP of at least two second DL RS resources is higher than the first threshold; and the difference between the RSRP of at least two second DL RS resources is lower than the second threshold.

[0030] According to an example embodiment of the fifth aspect, the report comprises a third report identifying a single third DL RS resource and a single third capability value set.

[0031] According to an example embodiment of the fifth aspect, the third report indicates transmission of a single beam in uplink, the single beam being associated with a single third DL RS resource and being transmitted via a set of antenna ports associated with a single set of third capability values.

[0032] According to an example embodiment of the fifth aspect, each group of antenna ports corresponds to a different antenna panel of the UE.

[0033] According to an exemplary embodiment of the fifth aspect, the simultaneous transmission of at least two beams or the transmission of a single beam comprises transmission of an SRS.

[0034] According to an example embodiment of the fifth aspect, each capability value set includes one or more of the following: the number of antenna ports, the number of beams of the antenna ports, the achievable transmission power of the antenna ports, and the on and off times of the antenna ports.

[0035] According to an exemplary embodiment of the fifth aspect, the DL RSs are grouped into multiple groups of DL RS sets, each group of DL RS sets is received from a different TRP.

[0036] According to an example embodiment of the fifth aspect, each of the DL RSs includes one or more of: SSB; and CSIRS.

[0037] According to an example embodiment of the fifth aspect, the report includes one or more of a first report, a second report or a third report in a single beam report instance, wherein the beam report instance is configured such that: N first entries correspond to one or more first reports; M adjacent entries correspond to one or more second reports; and L last entries correspond to one or more second reports, wherein N, M and L are fixed or configurable by the network node.

[0038] According to a sixth aspect, a method may include: transmitting multiple DL RSs to a UE; and receiving a report from the UE identifying one or more DL RS resources and one or more capability value sets, wherein the one or more DL RS resources and the one or more capability value sets are based on measuring multiple DL RSs at the UE for at least one capability value set of the UE, each capability value set being associated with a set of one or more antenna ports of the UE.

[0039] According to the seventh aspect, a computer program may include instructions for causing a device to perform at least the following operations: transmitting multiple DL RSs to a UE; and receiving a report from the UE identifying one or more DL RS resources and one or more capability value sets, wherein the one or more DL RS resources and the one or more capability value sets are based on measuring multiple DL RSs at the UE for at least one capability value set of the UE, each capability value set being associated with a set of one or more antenna ports of the UE.

[0040] According to the eighth aspect, an apparatus may include: a component for transmitting multiple DL RSs to a UE; and a component for receiving a report identifying one or more DL RS resources and one or more capability value sets from the UE, wherein the one or more DL RS resources and the one or more capability value sets are based on measuring multiple DL RSs at the UE for at least one capability value set of the UE, each capability value set being associated with a set of one or more antenna ports of the UE.

[0041] Any exemplary embodiment may be combined with one or more other exemplary embodiments.Many of the relevant features will be more readily understood by referring to the following detailed description considered in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are included to provide a further understanding of the example embodiments and constitute a part of this specification, illustrate example embodiments and together with the description help to understand the example embodiments. In the drawings:

[0043] Figure 1 An example embodiment of a communication network is shown;

[0044] Figure 2 An example embodiment of an apparatus configured to practice one or more example embodiments is shown;

[0045] Figure 3 An example embodiment of UE capability aware beam reporting for UL transmission is shown;

[0046] Figure 4 An example embodiment of UE capability aware beam selection for UL transmission is shown;

[0047] Figure 5An example embodiment of panel capability aware beam reporting for multi-panel UL transmission is shown; and

[0048] Figure 6 An example embodiment of UE capability aware beam reporting for UL transmission is shown.

[0049] Figure 7 An example embodiment of UE capability aware beam reporting for UL transmission is shown.

[0050] In the drawings, the same reference numerals are used to denote the same components. DETAILED DESCRIPTION

[0051] Reference will now be made in detail to example embodiments, examples of which are illustrated in the accompanying drawings. The detailed description provided below in conjunction with the drawings is intended as a description of the present examples and is not intended to represent the only form in which the present examples may be constructed or utilized. The description sets forth the functions of the examples and the sequence for constructing and operating the example steps. However, the same or equivalent functions and sequences may be implemented by different examples.

[0052] In order to improve the reliability, latency and / or capacity of the uplink channel, the device can be configured with multiple groups of antenna ports. In particular, the antenna ports can be grouped into different antenna panels. For example, different transmissions can be transmitted simultaneously using different antenna panels. In particular, different transmissions can be transmitted simultaneously toward different transmission and reception points (TRPs) using different antenna panels. Similarly, signals can be received simultaneously using different antenna panels. In particular, signals can be received simultaneously from different TRPs using different antenna panels. Alternatively or in combination, different transmissions can be transmitted in time division multiplexing using a single panel with two corresponding beams. This enables improved multiplexing capabilities and, more generally, improved transmission resource efficiency and also lower latency. However, multi-panel UL transmissions require panel-aware beams and / or panel selection and reporting.

[0053] Some embodiments provide apparatus and methods for facilitating simultaneous multi-panel UL transmissions. Some embodiments provide apparatus and methods for facilitating simultaneous UL transmissions in multi-TRP situations. Some embodiments improve the throughput and / or reliability of UL transmissions.

[0054] According to an example embodiment, an apparatus (e.g., a UE) may receive a transmission of a plurality of DL RSs from a network node. The apparatus may measure the plurality of DL RSs for at least one capability value set of the UE, each capability value set being associated with a set of one or more antenna ports of the UE. The apparatus may transmit a report identifying one or more DL RS resources and one or more capability value sets to the network node.

[0055] Figure 1 An example of a communication network is shown. The communication network 100 may include one or more devices, which may also be referred to as client nodes, user nodes, or UEs, an example of which is provided as UE 110. UE 110 may communicate with one or more access points (gNBs) 130, represented in this example by a first TRP 120 and a second TRP 122. UE 110 may generally communicate with any number (M) of TRPs. The communication between UE 110 and TRPs 120, 122 may be bidirectional, and thus any of these entities may be configured to operate as a transmitter and / or a receiver.

[0056] UE 110 may be configured with multiple antenna ports 1111, 112, 1121, 1122, 1131. These antenna ports may be grouped into multiple groups of one or more antenna ports. Each group may be associated with a differently oriented antenna panel 111, 112, 113, each panel including one or more antenna ports. For example, UE 110 may include: a first panel 111 including two antenna ports 1111, 1112; a second panel 112 including two antenna ports 1121, 1122; and a third panel 113 including one antenna port 1131.

[0057] UE 110 may be configured to transmit a sounding reference signal (SRS) on each of its antenna ports to measure channel conditions associated therewith. For example, UE 110 may be configured to transmit the SRS in a codebook-based transmission. The SRS required to measure channel conditions may depend on the UE's capabilities in terms of SRS, and in particular, on the number of antenna ports used for SRS resources.

[0058] The capabilities of UE 110 may be defined for one or more (e.g., for SRS resources) antenna ports. For example, the capabilities of UE 110 may be defined by the maximum number of SRS ports that the UE may support for certain UL transmission (TX) beams, where the TX beams are characterized by SSB (synchronization signal blocks) and / or CSI-RS (channel state information reference signal) resources. The capabilities of UE 110 may be further defined by the number of beams, the achievable transmission power (e.g., EIRP (effective isotropic radiated power)), and / or the on and off times. Each capability of UE 110 may be associated with a capability value set. Each capability value set may include one or more of the following: the number of antenna ports, the number of beams, the achievable EIRP, the achievable TX power, and the on and off times of the antenna ports.

[0059] In particular, multiple panels may have different capabilities. The capabilities of a panel may be defined by the number of antenna ports of the panel, the number of beams of the panel, the achievable transmission power of the panel (e.g., EIRP), and / or the on and off time of the panel. Each panel of the UE 110 may be associated with a capability value set. Each capability value set may include the number of antenna ports of the panel, the number of beams of the panel, the achievable transmission power of the panel (e.g., EIRP (effective isotropic radiated power) and / or TX), and / or the on and off time of the panel.

[0060] The capability value set may be identified by an index. For example, the first panel 111 including antenna ports 1111, 1112 may be identified by capability value set index #0:=2SRS port. The second panel 112 including antenna ports 1121, 1122 may be identified by capability value set index #1:=2SRS port. The third panel 113 including antenna port 1131 may be identified by capability value set index #2:=1SRS port.

[0061] Each antenna panel 111, 112, 113 may transmit a different transmission. Two or more antenna panels 111, 112, 113 may transmit simultaneously. In particular, two or more antenna panels 111, 112, 113 may transmit simultaneously towards different TRPs 120, 122. Alternatively or in combination, a single panel 111, 112, 113 may transmit different transmissions in time division multiplexing using different beams.

[0062] The appropriate antenna panel may be selected for communicating with a particular TRP. For example, UE 110 may communicate with a first TRP 120 using a first panel 111 and may communicate with a second TRP 122 using a second panel 112. Transmissions from a device to gNB 130 (e.g., from UE 110 to TRP 120) may be referred to as uplink (UL) transmissions. Transmissions from an access node to a device may be referred to as downlink (DL) transmissions.

[0063] Example embodiments described herein may enable panel and / or beam selection and / or reporting for multi-panel UL transmissions. In particular, example embodiments described herein may enable UE-initiated panel selection for multi-panel UL transmissions.

[0064] The communication network 100 may further include one or more core network elements (not shown), such as network nodes, network devices, or network functions. The core network may, for example, include an access and mobility management function (AMF) and / or a user plane function (UPF), which enables TRP 120, TRP 122 to provide various communication services for UE 110. TRP 120, TRP1 22 may be configured to communicate with the core network elements via a communication interface (e.g., a control plane interface and / or a user plane interface (e.g., NG-C / U)). An access node (such as TRP 120) may also be referred to as a base station or a radio access network (RAN) node, and it may be part of the RAN between the core network and UE 110. The function of the access node (such as the fifth generation (5G) gNB). It may be between a central unit (CU) (e.g., gNB-CU) and one or more distributed units (DU) (e.g., gNB-DU). It should therefore be understood that the access node functions described herein may be implemented at the gNB, or divided between the gNB-CU and the gNB. Network elements such as gNB, gNB-CU and gNB-DU may be generally referred to as network nodes or network devices. Although depicted as a single device, a network node may not be a standalone device, but rather a distributed computing system coupled to a remote radio head, for example. For example, a cloud radio access network (cRAN) may be applied for split control of radio functions to optimize performance and cost.

[0065] The communication network 100 may be configured, for example, according to a 5G digital cellular communication network defined by the Third Generation Partnership Project (3GPP). In one example, the communication network 100 may operate according to 3GPP 5G NR (New Radio). However, it should be appreciated that the example embodiments presented herein are not limited to this example network and may be applied to any current or future wireless communication network or combination thereof, such as other types of cellular networks, short-range wireless networks, broadcast or multicast networks, etc.

[0066] Data communication in the communication network 100 may be based on a protocol stack including various communication protocols and layers. The layers of the protocol stack may be configured to provide certain functions, for example, based on an open system interconnection (OSI) model or a layer model of a specific standard (eg, NR).

[0067] In one example, the protocol stack may include a service data adaptation protocol (SDAP) layer, which may receive data, such as one or more data packets, from an application layer for transmission at a transmitter side. The SDAP layer may be configured to exchange data with a PDCP (packet convergence protocol) layer. The PDCP layer may be responsible for generating PDCP data packets, for example, based on data obtained from the SDAP layer.

[0068] For example, a radio resource control (RRC) layer provided above the PDCP layer may be configured to implement control plane functions. RRC may refer to providing radio resource related control data. RRC messages may be transmitted on various logical control channels, such as a common control channel (CCCH) or a dedicated control channel (DCCH).

[0069] The PDCP layer may provide data to one or more instances of the radio link control (RLC) layer. For example, a PDCP packet may be transmitted on one or more RLC transmission branches. (Multiple) RLC instances may be associated with corresponding medium access control (MAC) instances of the MAC layer. The MAC layer may transmit data to the physical layer for transmission.

[0070] The MAC layer may provide mapping between logical channels and transport channels of (multiple) upper layers, such as, for example, a broadcast channel (BCH), a paging channel (PCH), a downlink shared channel (DL-SCH), an uplink shared channel (UL-SCH), or a random access channel (RACH). The MAC layer may be further configured to handle multiplexing and demultiplexing of MAC service data units (SDUs). In addition, the MAC layer may provide error correction functionality based on data packet retransmission, for example, according to a hybrid automatic repeat request (HARQ) process. The MAC layer may also carry control information, for example in a MAC control element (CE). This enables fast exchange of control information at the MAC layer without involving upper layers.

[0071] The physical layer may provide data transmission services on a physical layer channel, such as a physical broadcast channel (PBCH), a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), or a physical random access channel (PRACH). The physical layer may, for example, perform modulation, forward error correction (FEC) coding, define a physical layer frame structure, etc., to transmit upper layer data at the physical channel. The physical channel may carry a transport channel. The physical layer may also carry signaling information, such as downlink control information (DCI). Thus, the DCI may include physical layer signaling information. The DCI may, for example, be carried on the PDCCH. The DCI may include information about uplink resource allocation and / or information about downlink transmissions for the UE 110. The DCI may be used, for example, by TRP 120, TRP 122 to schedule an uplink grant for UE 110, i.e., to inform UE 110 about transmission resources (e.g., subcarriers of a specific orthogonal frequency division multiplexing (OFDM) symbol) allocated to UE 110 for uplink transmission. The DCI may also indicate transmission parameters to be used for the uplink grant.

[0072] The transmission resources of the physical layer may include time and / or frequency resources. An example of a frequency resource is a subcarrier of an orthogonal frequency division multiplexing (OFDM) symbol. An example of a time resource is an OFDM symbol. A resource element (RE) may, for example, include a subcarrier position during an OFDM symbol. A resource element may be configured to carry a modulation symbol, for example, a quadrature amplitude modulation (QAM) symbol including the real and / or imaginary part of a modulation symbol. Transmission resources may be allocated in blocks of resource elements. A resource block may include a group of resource elements (e.g., 12 REs).

[0073] The protocol stack may thus include the following layers (lowest to highest): physical layer, MAC layer, RLC layer, and PDCP layer. RRC and SDAP protocols may be configured to operate on top of the PDCP layer. The corresponding protocol stack may be applied at UE 110 and TRP 120, TRP 122. Although various operations have been described using the above protocol stack as an example, it should be understood that the described exemplary embodiments may also be applied to other protocol stacks having sufficiently similar functionality.

[0074] It should be noted that throughout this disclosure, an uplink beam may also refer to spatial relationship information, (separate) uplink transmission configuration indicator (TCI) state, joint or common TCI state, spatial filter, power control information (or power control parameter set), panel or panel ID, quasi co-location type D (or other type), SRS resource indicator, etc. More generally, all of these terms may be used interchangeably and are summarized as parameters indicating the directionality of uplink transmission. In addition, the TRP may be identified by at least one of the following: an SRS resource set, a CSI-RS resource set, a BFD-RS (beam failure detection reference signal) set, a subset / set of UL beams, a CORESET pool index (CORESETPoolIndex) (if configured), or a physical cell identifier (PCI). The antenna panel of UE 110 may be identified by a panel ID. Alternatively or additionally, a panel may be identified or associated by at least one DL RS (or more generally RS) or by an uplink beam. Beam information for PUCCH and / or PUSCH may be indicated / configured based on the 3GPP Rel-15 / Rel-16 framework or based on the 3GPP Rel-17 unified TCI framework.

[0075] Figure 2An example embodiment of an apparatus 200 (e.g., UE 110, TRP 120, TRP 122, or a component or chipset of UE 110 or TRP 120, TRP 122) is shown. Apparatus 200 may include at least one processor 202. At least one processor 202 may include, for example, one or more of various processing devices or processor circuitry, such as, for example, a coprocessor, a microprocessor, a controller, a digital signal processor (DSP), processing circuitry with or without an accompanying DSP, or various other processing devices including an integrated circuit, such as, for example, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), a microcontroller unit (MCU), a hardware accelerator, a dedicated computer chip, etc.

[0076] The apparatus 200 may also include at least one memory 204. The at least one memory 204 may be configured to store, for example, computer program code, such as operating system software and application software. The at least one memory 204 may include one or more volatile memory devices, one or more non-volatile memory devices, and / or a combination thereof. For example, the at least one memory 204 may be embodied as a magnetic storage device (such as a hard disk drive, a floppy disk, a magnetic tape, etc.), an optical magnetic storage device, or a semiconductor memory (such as a mask ROM, a PROM (programmable ROM), an EPROM (erasable PROM), a flash ROM, a RAM (random access memory), etc.).

[0077] The device 200 may also include a communication interface 208, which is configured to enable the device 200 to transmit and / or receive information to / from other devices. In one example, the device 200 may use the communication interface 208 to transmit or receive signaling information and / or data according to at least one cellular communication protocol. The communication interface 208 may be configured to provide at least one wireless radio connection, such as, for example, a 3GPP mobile broadband connection (e.g., 3G, 4G, 5G, 6G). However, the communication interface may be configured to provide one or more other types of connections, such as a wireless local area network (WLAN) connection standardized by, for example, the IEEE 802.11 series or the Wi-Fi Alliance; a short-range wireless network connection, such as, for example, Bluetooth, NFC (near field communication) or RFID connection; a wired connection, such as, for example, a local area network (LAN) connection, a universal serial bus (USB) connection, or an optical network connection, etc.; or a wired Internet connection. The communication interface may therefore include various devices for transmitting and / or receiving radio signals, such as analog and / or digital circuit systems, such as, for example, baseband circuits and / or radio frequency (RF) circuits. The communication interface 208 may also include or be configured to be coupled to one or more antennas to transmit and / or receive radio signals. One or more of the various types of connections may also be implemented as a separate communication interface, which may be coupled or configured to be coupled to one or more antennas.

[0078] The apparatus 200 may also include a user interface 210, which includes an input device and / or an output device. The input device may take various forms, such as a keyboard, a touch screen, or one or more embedded control buttons. The output device may include, for example, a display, a speaker, a vibration motor, etc.

[0079] When the apparatus 200 is configured to implement some functions of the example embodiment, a certain component and / or certain components of the apparatus 200 (such as, for example, at least one processor 202 and / or at least one memory 204) may be configured to implement the function. In addition, when the at least one processor 202 is configured to implement a certain function, the function may be implemented by using, for example, a program code 206 included in the at least one memory 204.

[0080] The functions described herein may be performed at least in part by one or more computer program product components such as software components. According to an embodiment, the device includes a processor or a processor circuit system, such as a microcontroller, configured by a program code to perform the described operations and embodiments of the functions when the program code is executed. The computer program or computer program product may therefore include instructions for causing the device 200 to perform the (multiple) methods described herein when executed. Alternatively or additionally, the functions described herein may be performed at least in part by one or more hardware logic components. For example, but not limited to, illustrative types of hardware logic components that may be used include field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chip (SOCs), complex programmable logic devices (CPLDs), and graphics processing units (GPUs).

[0081] The apparatus 200 includes components for performing at least one method described herein. In an example, the components include at least one processor 202, at least one memory 204, the at least one memory 204 including program code 206, the program code being configured to cause the apparatus 200 to perform a method when executed by the at least one processor. The apparatus 200 may, for example, include components for generating, transmitting and / or receiving wireless communication signals, such as modulation circuitry, demodulation circuitry, radio frequency (RF) circuitry, etc. The circuitry (s) may be coupled to or configured to be coupled to one or more antennas to transmit and / or receive wireless communication signals over an air interface.

[0082] The apparatus 200 may include a computing device, such as, for example, a gNB, a base station, a mobile phone, a smart phone, a tablet computer, a laptop computer, an Internet of Things (IoT) device, etc. Examples of IoT devices include, but are not limited to, consumer electronics, wearable devices, sensors, and smart home devices. In an example, the apparatus 200 may include a vehicle, such as a car. Although the apparatus 200 is shown as a single device, it should be understood that the functionality of the apparatus 200 may be distributed to multiple devices wherever applicable, such as for implementing the example embodiments as a cloud computing service.

[0083] Figure 3 An example embodiment of a method for UE capability aware beam reporting for UL transmission is shown. The example embodiments described herein may be used, for example, to schedule SRS resources in codebook based transmissions. Apparatus such as UE 110 and gNB 130 may be configured to perform Figure 3 The functions and operations of the methods.

[0084] The example embodiments described herein may be applied to beam and / or panel selection for multi-panel UL transmission. The example embodiments described herein may be used to achieve simultaneous multi-panel UL transmission for higher UL throughput / reliability. Figure 5 Example embodiments for panel capability aware beam reporting for multi-panel UL transmissions are described in further detail.

[0085] It is important to note that Figure 3 One example of operations at UE 110 and gNB 130 is presented. Some of the operations described may not be present in all example embodiments, and example embodiments may also include additional features / operations described elsewhere in this specification.

[0086] At operation 301, UE 110 may receive a plurality of downlink reference signal (DL RS) sets from gNB 130. In particular, each DL RS set may include one or more SSBs (synchronization signal blocks) and / or CSI-RSs (channel state information reference signals). In particular, each DL RS set may include one or more pairs of SSB / CSI-RSs.

[0087] In an example embodiment, the UE may treat each DL RS set as a separate DL RS set. In another example embodiment, the DL RS sets may be grouped together into groups. Each group of DL RS sets may be identified by using an index value associated with a resource set configuration. As an example, DL RS set #1 and DL RS set #2 may be grouped together (or other ways in which the UE may understand that the sets are grouped) by using an index value (e.g., index #0) in the corresponding DL RS set configuration. In addition, for example, DL RS set #2 and DL RS set #3 may be grouped together by index value #1. As described in relation to Figure 5 As described in detail in , each set of DL RSs can be associated with and / or received from a specific TRP.

[0088] Prior to operation 301, the UE may have sent a list of capability value sets to the gNB. The list may be provided, for example, in an RRC message sent by the UE to the gNB during an initial registration procedure. The capability value set list may include one or more capability value sets.

[0089] Each capability value set may correspond to a capability of the UE. In particular, the capability of the UE may be a set of one or more antenna ports of the UE (e.g., for SRS resources). In particular, each set of antenna ports may be associated with a different panel in the UE. In the list, each capability value set may be associated with an index.

[0090] Each capability value set may include one or more of the following: the number of antenna ports (eg, for SRS resources), the number of beams, the achievable EIRP, the achievable TX power, and on and off times of antenna ports.

[0091] At operation 302, UE 110 may measure different DL RSs. In particular, UE 110 may measure different DL RSs for different capability value sets of the UE. In particular, UE 110 may measure different DL RSs received at each group of antenna ports. For example, UE 110 may measure the DL RSs received by each antenna panel. UE 110 may measure the signal quality for each DL RS, such as RSRP (reference signal received power, in particular L1-RSRP.

[0092] At operation 303, UE 110 may transmit a report to gNB 130. The report may be included in a beam reporting instance of UL control information. Prior to operation 303, UE 110 may be configured with packet-based uplink reporting higher layer parameters by the gNB.

[0093] The report may indicate one or more available UL transmission modes for the UE. Based on the selection of one or more DL RS resources for one or more capability value sets, the available UL transmission modes may be determined. The selection may be based on measurements of different DL RSs. The report may also indicate an association between the selected DL RS resources and the selected capability value set. Figure 4 Let's describe selection and association in more detail.

[0094] Figure 4 An example embodiment of a method for UE capability-aware beam selection for UL transmission is shown. In particular, the example embodiments described herein may be applied to Figure 5 Panel and / or beam selection for multi-panel UL transmission as described in more detail herein. Apparatus such as UE 110 and gNB 130 may be configured to perform Figure 4 The functions and operations of the methods.

[0095] At operation 401, the UE 110 may determine whether at least two DL RSs satisfy a first set of criteria regarding different UE capabilities.

[0096] The first set of criteria may include that the RSRP of the DL RS is above a first threshold. The first set of criteria may also include that the difference between the RSRPs of the DL RSs is below a second threshold. The set of criteria may also include the ability of UE 110 to transmit simultaneously using two UE capabilities.

[0097] If UE 110 can find at least two DL RSs that meet the criteria of the first set regarding different UE capabilities, UE 110 sends a first report 411 to the gNB. The first report 411 may include an index of each DL RS resource in the DL RS resources that meet the criteria of the first set and an index of the associated UE capability value set. The first report indicates the ability of the UE to perform a first UL transmission mode. The first UL transmission mode includes simultaneous UL transmission via multiple beams. Each beam may correspond to one DL RS resource in the DL RS resources identified in the first report. In particular, each beam may be quasi-co-located with a corresponding DL RS resource identified in the first report. Each beam is transmitted via an antenna port group identified by a corresponding capability value set identified in the first report.

[0098] At operation 402, UE 110 may determine whether at least two DL RS resources satisfy a second set of criteria regarding the same set of capability values.

[0099] The second set of criteria may include that the RSRP of the two DL RS resources is higher than a first threshold. The second set of criteria may also include that the difference between the RSRP of the two DL RS resources is lower than a second threshold.

[0100] If the UE can find at least two DL RS resources that meet the criteria of the second set of the same capability value set, the UE 110 sends a second report 412 to the gNB. The second report 412 may include an index of the DL RS resources that meet the criteria of the second set and an index of the associated capability value set. The second report indicates the ability of the UE 110 to perform the second UL transmission mode.

[0101] The second UL transmission mode may include simultaneous transmission of multiple beams. Each beam corresponds to one of the DL RS resources identified in the second report. In particular, each beam may be quasi-co-located with the corresponding DL RS resource identified in the second report. The antenna port group associated with the capability value set identified in the second report may generate all beams simultaneously.

[0102] The second UL transmission mode may also include time division multiplexing transmission of multiple beams. Each beam corresponds to one of the DL RS resources identified in the second report. In particular, each beam may be quasi-co-located with the corresponding DL RS resource identified in the second report. An antenna port group associated with a capability value set identified in the second report may alternatively generate each beam.

[0103] If UE 110 cannot find at least two DL RS resources that meet the second set of criteria for the same capability value set, UE 110 may determine that at least one DL RS resource meets the third set of criteria for a single capability value set. The third set of criteria may include that the RSRP of the DL RS resource for the capability value set is above the first threshold.

[0104] If the UE 110 can find at least one DL RS resource that meets the criteria of the third set with respect to the single capability value set, the UE sends a third report 413 to the gNB. The third report 413 may include an index of a DL RS resource that meets the criteria of the third set and an index of the associated capability value set. In particular, the third report 413 may include twice the index of the DL RS resource that meets the criteria of the third set and twice the index of the associated capability value set. The third report indicates the ability of the UE to perform a third UL transmission mode. The third UL transmission mode includes transmission of a beam corresponding to the DL RS resource identified in the third report. In particular, the beam may be quasi-co-located with the corresponding DL RS resource identified in the third report. The beam is transmitted via an antenna port group associated with the single capability value set identified in the third report.

[0105] The report may include a first report, a second report, and a third report in a single beam report instance. For example, the report may be organized such that: - the first N entries of a report are reserved for the first report, - the next M entries of the report are reserved for the second report, -The last L entries of the report are reserved for the third report. N, M and L may be fixed in the specification or configurable by the gNB.

[0106] Figure 5 Example embodiments of methods for panel capability aware beam reporting and / or selection for multi-panel UL transmission are shown. Example embodiments described herein may be used to schedule SRS resources, for example, in codebook based transmissions. Example embodiments described herein may be used to enable simultaneous multi-panel UL transmissions for higher UL throughput / reliability. Note that Figure 5 An example of operations at UE 110 and TRP 120, 122 is presented. Some of the operations described may not be present in all example embodiments, and example embodiments may also include additional features / operations described elsewhere in this specification. Apparatus such as UE 110 and TRP 120, 122 may be configured to perform Figure 5 The functions and operations of the methods.

[0107] In an example embodiment, each capability value set may correspond to a set of one or more antenna ports of the UE (e.g., for SRS resources). Each set of antenna ports of the UE may correspond to an antenna panel of the UE. In particular, a first capability value set may correspond to a first antenna panel of the UE, and a second capability value set may correspond to a second antenna panel of the UE.

[0108] Each capability value set may include one or more of the following: the number of antenna ports of the antenna panel used for SRS resources, the number of beams of the antenna panel, the achievable EIRP, the achievable TX power of the antenna panel, and the on and off times of the antenna panel.

[0109] Each set of capability values ​​may be associated with an index identifying a panel. For example, a first index may be associated with a first panel of UE 110, and a second index may be associated with a second panel of UE 110. The list may be provided in an RRC message sent by the UE to the network, for example, during an initial registration procedure.

[0110] At operation 501, UE 110 may receive a first DL RS set from a first TRP 120.

[0111] At operation 502, UE 110 may receive a second DL RS set from a second TRP 122.

[0112] In an example embodiment, DL RS sets may be assumed by the UE to be implicitly associated with different TRPs. In particular, different DL RS sets are assumed to be from different TRPs.

[0113] In another example embodiment, the association between at least one of the DL RS sets and the associated TRP may be indicated to the UE 110, for example, by the TRP. The TRP may be identified based on any suitable parameters. For example, each DL RS set may be associated with a specific TRP and / or associated by a control resource set pool index (CORESETPoolIndex), at least one control resource set identifier (CORESET ID), a beam failure detection reference signal (BFD-RS) set, an SRS resource set, and / or a physical cell ID. Based on any (one or more) of these parameters, the UE 110 may determine the DL RS set associated with each TRP. For example, the first TRP 120 may be identified based on the first CORESETPoolIndex, the first CORESET ID, the first BFD-RS set, the first SRS resource set, or the first physical cell ID. The second TRP 122 may be identified based on the second CORESETPoolIndex, the second CORESET ID, the second BFD-RS set, the second SRS resource set, or the second physical cell ID.

[0114] At operation 503, UE 110 may measure each DL RS for each antenna panel of the UE. For example, UE 110 may measure a first DL RS set and a second DL RS set for a first antenna panel and a second antenna panel of the UE.

[0115] At operation 504, UE 110 may transmit a report to the gNB. The report may include the selection of a panel and the association between the panel and the TRP. The report may also indicate whether the UE is capable of simultaneous multi-panel UL transmissions, time division multiplexed multi-panel UL transmissions, and / or single-panel UL transmissions. Figure 4 Selection and association are described in more detail.

[0116] Figure 6 An example embodiment of UE 110 capability aware beam reporting for UL transmissions is shown.

[0117] At operation 601, the method may include receiving a transmission of a plurality of DL RSs from a network node.

[0118] At operation 602, the method may include measuring a plurality of DL RSs for at least one capability value set of the UE, each capability value set being associated with a set of one or more antenna ports of the UE.

[0119] At operation 603, the method may include transmitting a report identifying one or more DL RS resources and one or more sets of capability values ​​to a network node.

[0120] Figure 7 An example embodiment of UE 110 capability aware beam reporting for UL transmissions is shown.

[0121] At operation 701 , the method may include transmitting a plurality of DL RSs to a UE.

[0122] At operation 702, the method may include receiving a report from a UE identifying one or more DL RS resources and one or more capability value sets, wherein the one or more DL RS resources and the one or more capability value sets are based on measuring multiple DL RSs for at least one capability value set of the UE at the UE, each capability value set being associated with a set of one or more antenna ports of the UE.

[0123] Further features of the method result directly from the functionality and parameters of the UE 110, TRP 120, TRP 122 or in general the apparatus 200, as described in the appended claims and throughout the specification and are therefore not repeated here. Different variants of the method may also be applied, as described in connection with the various exemplary embodiments.

[0124] Without losing the effect sought, any range or device value given herein may be expanded or changed. In addition, unless explicitly not permitted, any embodiment may be combined with another embodiment.

[0125] Although the technical solution has been described in a language specific to structural features and / or actions, it should be understood that the technical solution defined in the appended claims is not necessarily limited to the above-mentioned specific features or actions. On the contrary, the specific features and actions described above are disclosed as examples of implementing the claims, and other equivalent features and actions are intended to fall within the scope of the claims.

[0126] It should be understood that the above benefits and advantages may relate to one embodiment or may relate to several embodiments. The embodiments are not limited to those that solve any or all problems or have any or all benefits and advantages. It should also be understood that reference to "an" item may refer to one or more of those items.

[0127] The steps or operations of the methods described herein may be performed in any suitable order, or simultaneously where appropriate. Additionally, individual blocks may be deleted from any method without departing from the scope of the technical solutions described herein. Aspects of any embodiment described above may be combined with aspects of any of the other embodiments described to form additional embodiments without losing the effects sought.

[0128] The term "comprising" is used herein to mean including the identified methods, blocks or elements, but such blocks or elements do not include an exclusive list and the method or apparatus may contain additional blocks or elements.

[0129] As used in this application, the term "circuitry" may refer to one or more or all of the following: (a) hardware circuit implementations only (such as implementations in analog and / or digital circuitry only) and (b) combinations of hardware circuitry and software, such as (as applicable): (i) a combination of analog and / or digital hardware circuitry(s) with software / firmware, and (ii) hardware processor(s) with software (including any portion of digital signal processor(s), software, and memory(s) that work together to enable a device such as a mobile phone or server to perform various functions) and (c) hardware circuit(s) and / or processor(s) that require software (e.g., firmware) for operation, such as microprocessor(s) or a portion of microprocessor(s), but the software may not be present when not required for operation. This definition of circuitry applies to all uses of the term in this application, including in any claims.

[0130] As another example, as used in this application, the term circuitry also covers an implementation of only a hardware circuit or processor (or multiple processors) or a portion of a hardware circuit or processor and its accompanying software and / or firmware. For example, the term circuitry also covers a baseband integrated circuit or processor integrated circuit used in a mobile device or similar integrated circuit in a server, cellular network device, or other computing or network device, if applicable to the particular claim element.

[0131] It should be understood that the above description is given as an example only, and various modifications may be made by those skilled in the art. The above description, examples and data provide a complete description of the structure and use of the exemplary embodiments. Although various embodiments have been described above with certain particularity or with reference to one or more separate embodiments, those skilled in the art may make many changes to the disclosed embodiments without departing from the scope of this specification.

Claims

1. A device comprising: at least one processor; as well as at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processor, cause the apparatus to at least perform operations comprising: receiving a transmission of a plurality of downlink reference signals DL RS from a network node; measuring the plurality of DL RSs for at least one capability value set of a user equipment UE, each capability value set being associated with a set of one or more antenna ports of the UE; and A report identifying one or more DL RS resources and one or more sets of capability values ​​is transmitted to the network node. 2 . The apparatus of claim 1 , wherein the report comprises a first report identifying at least two first DL RS resources and at least two first capability value sets.

3. An apparatus according to claim 2, wherein the first report indicates simultaneous transmission of at least two beams in an uplink, each of the at least two beams is associated with a corresponding one of the at least two first DL RS resources, and each of the at least two beams is transmitted via the set of antenna ports associated with a corresponding one of the at least two first capability value sets.

4. The apparatus of any one of claims 2 to 3, wherein the report comprises the first report when a first set of criteria is met, the first set of criteria comprising one or more of: Each of the at least two first DL RS resources identified in the first report is associated with a different set of first capability values; The reference signal received power RSRP of the at least two first DL RS resources is higher than a first threshold; A difference between the RSRPs of the at least two first DL RS resources is lower than a second threshold; and The UE is capable of transmitting simultaneously using the two first capability value sets. 5 . The apparatus of claim 1 , wherein the report comprises a second report identifying at least two second DL RS resources and a single second capability value set.

6. An apparatus according to claim 5, wherein the second report indicates simultaneous transmission of at least two beams in an uplink, each of the at least two beams being associated with a corresponding one of the at least two second DL RS resources, and the at least two beams being transmitted via a set of antenna ports associated with the single second capability value set.

7. The apparatus of any one of claims 5 to 6, wherein the report comprises the second report when a second set of criteria is met, the second set of criteria comprising one or more of: The at least two second DL RS resources are associated with the same second capability value set; The RSRP of the at least two second DL RS resources is higher than a first threshold; and A difference between the RSRPs of the at least two second DL RS resources is lower than a second threshold.

8. The apparatus of claim 1, wherein the report comprises a third report identifying a single third DL RS resource and a single third set of capability values.

9. The apparatus of claim 8, wherein the third report indicates transmission of a single beam in uplink, the single beam being associated with the single third DL RS resource and being transmitted via a set of antenna ports associated with the single third set of capability values.

10. The apparatus according to any one of claims 1 to 9, wherein each group of antenna ports corresponds to a different antenna panel of the UE.

11. The apparatus according to any one of claims 1 to 10, wherein the simultaneous transmission of the at least two beams or the transmission of the single beam comprises transmission of a sounding reference signal (SRS).

12. The apparatus according to any one of claims 1 to 11, wherein each capability value set comprises one or more of the following: The number of antenna ports, the number of beams of the antenna port, the achievable transmission power of the antenna port; and The opening and closing time of the antenna port.

13. The apparatus according to any one of claims 1 to 12, wherein the DL RSs are grouped into a plurality of DL RS sets, each DL RS set being received from a different transmission reception point (TRP).

14. The apparatus according to any one of claims 1 to 13, wherein the DL RSs are grouped into multiple DL RS sets, each DL RS set comprising one or more of the following: Synchronization signal block SSB; and Channel State Information Reference Signal CSI-RS.

15. The apparatus according to any one of claims 1 to 14, wherein the report comprises one or more of the first report, the second report or the third report in a single beam reporting instance, wherein the beam reporting instance is configured such that: - N first entries corresponding to one or more first reports; -M immediately adjacent entries correspond to one or more second reports; - the L last entries correspond to one or more second reports, Wherein N, M and L are fixed or configurable by the network node.

16. A method comprising: receiving a transmission of a plurality of DL RSs from a network node; measuring the plurality of DL RSs for at least one capability value set of the UE, each capability value set being associated with a set of one or more antenna ports of the UE; as well as A report identifying one or more DL RS resources and one or more sets of capability values ​​is transmitted to the network node.

17. A computer program comprising instructions for causing a device to perform at least the following operations: receiving a transmission of a plurality of DL RSs from a network node; measuring the plurality of DL RSs for at least one capability value set of the UE, each capability value set being associated with a set of one or more antenna ports of the UE; and A report identifying one or more DL RS resources and one or more sets of capability values ​​is transmitted to the network node.

18. An apparatus comprising: means for receiving a transmission of a plurality of DL RSs from a network node; means for measuring the plurality of DL RSs for at least one capability value set for a UE, each capability value set being associated with a set of one or more antenna ports of the UE; as well as Means for transmitting a report identifying one or more DL RS resources and one or more sets of capability values ​​to the network node.

19. An apparatus comprising: at least one processor; as well as at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processor, cause the apparatus to at least perform operations comprising: Transmitting multiple DL RSs to the UE; as well as A report is received from the UE identifying one or more DL RS resources and one or more capability value sets, wherein the one or more DL RS resources and the one or more capability value sets are based on measuring the multiple DL RSs at the UE for at least one capability value set of the UE, each capability value set being associated with a set of one or more antenna ports of the UE.

20. The apparatus of claim 19, wherein the report comprises a first report identifying at least two first DL RS resources and at least two first capability value sets.

21. An apparatus according to claim 20, wherein the first report indicates simultaneous transmission of at least two beams in an uplink, each of the at least two beams is associated with a corresponding one of the at least two first DL RS resources, and each of the at least two beams is transmitted via the set of antenna ports associated with a corresponding one of the at least two first capability value sets.

22. The apparatus of any one of claims 20 to 21, wherein the report comprises the first report when a first set of criteria is met, the first set of criteria comprising one or more of: Each of the at least two first DL RS resources identified in the first report is associated with a different set of first capability values; The RSRP of the at least two first DL RS resources is higher than a first threshold; A difference between the RSRPs of the at least two first DL RS resources is lower than a second threshold; and The UE uses the capability of simultaneously transmitting the two first capability value sets.

23. The apparatus of claim 19, wherein the report comprises a second report identifying at least two second DL RS resources and a single set of second capability values.

24. An apparatus according to claim 23, wherein the second report indicates simultaneous transmission of at least two beams in an uplink, each of the at least two beams is associated with a corresponding one of the at least two second DL RS resources, and the at least two beams are transmitted via a set of antenna ports associated with the single second capability value set.

25. The apparatus of any one of claims 23 to 24, wherein the report comprises the second report when a second set of criteria is met, the second set of criteria comprising one or more of: The at least two second DL RS resources are associated with the same second capability value set; The RSRP of the at least two second DL RS resources is higher than a first threshold; and A difference between the RSRPs of the at least two second DL RS resources is lower than a second threshold.

26. The apparatus of claim 19, wherein the report comprises a third report identifying a single third DL RS resource and a single third set of capability values.

27. The apparatus of claim 26, wherein the third report indicates transmission of a single beam in uplink, the single beam being associated with the single third DL RS resource and being transmitted via a set of antenna ports associated with the single third set of capability values.

28. The apparatus of any one of claims 19 to 27, wherein each group of antenna ports corresponds to a different antenna panel of the UE.

29. The apparatus according to any one of claims 19 to 28, wherein the simultaneous transmission of the at least two beams or the transmission of the single beam comprises transmission of a sounding reference signal (SRS).

30. The apparatus according to any one of claims 19 to 29, wherein each capability value set comprises one or more of the following: The number of antenna ports, the number of beams of the antenna port, the achievable transmission power of the antenna port, and The opening and closing time of the antenna port.

31. The apparatus according to any one of claims 19 to 30, wherein the DL RSs are grouped into a plurality of DL RS sets, each DL RS set being received from a different transmission reception point (TRP).

32. The apparatus according to any one of claims 19 to 31, wherein the DL RSs are grouped into sets of DL RSs, each set of DL RSs comprising one or more of the following: SSB; and CSI-RS.

33. An apparatus according to any one of claims 19 to 32, wherein the report comprises one or more of the first report, the second report or the third report in a single beam reporting instance, wherein the beam reporting instance is configured such that: - N first entries corresponding to one or more first reports; -M immediately adjacent entries correspond to one or more second reports; - the L last entries correspond to one or more second reports, Wherein N, M and L are fixed or configurable by the network node.

34. A method comprising: Transmitting multiple DL RSs to the UE; as well as A report is received from the UE identifying one or more DL RS resources and one or more capability value sets, wherein the one or more DL RS resources and the one or more capability value sets are based on measuring the multiple DL RSs at the UE for at least one capability value set of the UE, each capability value set being associated with a set of one or more antenna ports of the UE.

35. A computer program comprising instructions for causing a device to perform at least the following operations: transmitting a plurality of DL RSs to the UE; and A report is received from the UE identifying one or more DL RS resources and one or more capability value sets, wherein the one or more DL RS resources and the one or more capability value sets are based on measuring the multiple DL RSs at the UE for at least one capability value set of the UE, each capability value set being associated with a set of one or more antenna ports of the UE.

36. An apparatus comprising: A means for transmitting a plurality of DL RSs to a UE; as well as A component for receiving a report identifying one or more DL RS resources and one or more capability value sets from the UE, wherein the one or more DL RS resources and the one or more capability value sets are based on measuring the multiple DL RSs at the UE for at least one capability value set of the UE, each capability value set being associated with a set of one or more antenna ports of the UE.

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