Reference signal reporting configuration

Abstract

In accordance with an example aspect of the present disclosure, there is provided a method comprising: receiving, by a wireless network node, capability information from a user equipment, the capability information indicating whether the user equipment has capabilities to perform joint demodulation or separate demodulation on a transport layer received by the user equipment from a first transmit receive point and a second transmit receive point, determining, by the wireless network node, a reference signal reporting configuration for the user equipment based on the capability information, the reference signal reporting configuration for reporting channel state information, the channel state information being associated with reference signals transmitted by the first transmit receive point and the second transmit receive point, the reference signal reporting configuration is sent by the wireless network node to the user equipment.

Description

Technical Field

[0001] The various example embodiments relate generally to cellular communication networks, and more specifically to reference signal reporting configurations in such networks. Background Technology

[0002] Reference signals are crucial in various cellular communication networks, such as those operating under 5G radio access technology, to achieve optimal performance. 5G radio access technology can also be referred to as New Radio (NR) access technology. The 3rd Generation Partnership Project (3GPP) has developed standards for 5G / NR, and several topics in 3GPP discussions relate to reference signals. Improved methods, apparatus, and computer programs related to reference signal reporting configuration are needed. These improvements can also be used in other cellular communication networks, such as 6G networks. Summary of the Invention

[0003] The subject matter of the independent claims is provided in several respects. Several example embodiments are defined in the dependent claims.

[0004] The scope of protection sought by the various exemplary embodiments of the present invention is set forth in the independent claims. Exemplary embodiments and features (if any) described in this specification that do not fall within the scope of the independent claims are to be construed as examples useful for understanding the various exemplary embodiments of the invention.

[0005] According to a first aspect of the invention, an apparatus is provided, comprising at least one processor and at least one memory storing instructions, the instructions, when executed by the at least one processor, causing the apparatus to at least: receive capability information from a user equipment, the capability information indicating whether the user equipment has the capability to perform joint demodulation or separate demodulation of a transport layer received by the user equipment from a first transmit / receive point and a second transmit / receive point; determine a reference signal reporting configuration for the user equipment based on the capability information, the reference signal reporting configuration for reporting channel state information associated with reference signals transmitted by the first transmit / receive point and the second transmit / receive point; and transmit the reference signal reporting configuration to the user equipment. The apparatus may be a wireless network node, such as a base station.

[0006] Example embodiments of the first aspect may include at least one feature from the following list of items or any combination of the following features: The reference signal reporting configuration is a group-based beam reporting configuration; The stored instructions, when executed by at least one processor, also cause the device to at least: determine a reference signal reporting configuration, including a reference signal received power reporting configuration, when capability information indicates that the user equipment has the capability to perform joint demodulation; The stored instructions, when executed by at least one processor, also enable the device to at least: determine a reference signal reporting configuration including a signal-to-interference and noise ratio reporting configuration when capability information indicates that the user equipment has the capability to perform separate demodulation; The stored instructions, when executed by at least one processor, also cause the device to at least: determine a reference signal configuration for a user equipment based on capability information, the reference signal configuration being used to transmit a reference signal from a first transmit / receive point and a second transmit / receive point, and transmit a reference signal to the user equipment from the first transmit / receive point and the second transmit / receive point according to the reference signal configuration; When the capability information indicates that the user equipment has the capability to perform joint demodulation, the reference signal resources from the first transmit / receive point and the second transmit / receive point are configured independently of each other; When the capability information indicates that the user equipment has the capability to perform separate demodulation, a pair of reference signal resources from the first transmit-receive point and the second transmit-receive point are configured, and one of the reference signal resources in the pair is configured for interference measurement. The stored instructions, when executed by at least one processor, also cause the device to at least: cycle through multiple pairs of reference signal resources configured for the first transmit / receive point and the second transmit / receive point; and transmit the multiple pairs of reference signal resources in a time-order manner; The reference signal is the channel state information reference signal, and the reference signal resource is the 2-port channel state information reference signal resource; The stored instructions, when executed by at least one processor, further cause the apparatus to at least: send a receive power threshold for a reported candidate beam to the user equipment; and receive from the user equipment an indication of candidate beams that can be simultaneously received by the user equipment, wherein the candidate beams are beams received by the user equipment at a power higher than the threshold.

[0007] According to a second aspect of the invention, an apparatus is provided, comprising at least one processor and at least one memory storing instructions, the instructions, when executed by the at least one processor, causing the apparatus to at least: transmit capability information to a wireless network node, the capability information indicating whether the apparatus has the capability to perform joint demodulation or separate demodulation of a transport layer received by the apparatus from a first transmit / receive point and a second transmit / receive point; and receive a reference signal reporting configuration for a user equipment from the wireless network node, the reference signal reporting configuration being used to report channel state information associated with a reference signal received by the apparatus from the first transmit / receive point and the second transmit / receive point, wherein the reference signal reporting configuration is based on the capability information.

[0008] Example embodiments of the second aspect may include at least one feature from the following list of items or any combination of the following features: The reference signal reporting configuration is a group-based beam reporting configuration; When the capability information indicating device has the capability to perform joint demodulation, the reference signal reporting configuration includes a reference signal received power reporting configuration. When the capability information indicating device has the capability to perform separate demodulation, the reference signal reporting configuration includes a signal-to-interference and noise ratio reporting configuration.

[0009] According to a third aspect of the present invention, a first method is provided, comprising: receiving capability information from a user equipment (UE) by a wireless network node, the capability information indicating whether the UE has the capability to perform joint demodulation or separate demodulation of a transport layer, the transport layer being received by the UE from a first transmit / receive point and a second transmit / receive point; determining a reference signal reporting configuration for the UE based on the capability information, the reference signal reporting configuration being used to report channel state information associated with reference signals transmitted by the first transmit / receive point and the second transmit / receive point; and transmitting the reference signal reporting configuration to the UE by the wireless network node. The wireless network node may be a base station.

[0010] According to a fourth aspect of the present invention, a second method is provided, comprising: transmitting capability information from a user equipment to a wireless network node, the capability information indicating whether the user equipment has the capability to perform joint demodulation or separate demodulation of a transport layer, the transport layer being received by the user equipment from a first transmit / receive point and a second transmit / receive point; and receiving a reference signal reporting configuration for the user equipment from the wireless network node, the reference signal reporting configuration being used to report channel state information associated with a reference signal received by the user equipment from the first transmit / receive point and the second transmit / receive point, wherein the reference signal reporting configuration is based on the capability information.

[0011] According to a fifth aspect of the present invention, an apparatus is provided, comprising: components for receiving capability information from a user equipment, the capability information indicating whether the user equipment has the capability to perform joint demodulation or separate demodulation of a transport layer, the transport layer being received by the user equipment from a first transmit / receive point and a second transmit / receive point; components for determining a reference signal reporting configuration for the user equipment based on the capability information, the reference signal reporting configuration being used to report channel state information associated with a reference signal transmitted by the first transmit / receive point and the second transmit / receive point; and components for transmitting the reference signal reporting configuration to the user equipment. The apparatus may be a wireless network node, such as a base station.

[0012] According to a sixth aspect of the present invention, an apparatus is provided, comprising: components for transmitting capability information to a wireless network node, the capability information indicating whether the apparatus has the capability to perform joint demodulation or separate demodulation of a transport layer, the transport layer being received by the apparatus from a first transmit / receive point and a second transmit / receive point; and components for receiving from the wireless network node a reference signal reporting configuration for the apparatus, the reference signal reporting configuration being used to report channel state information associated with a reference signal received by the apparatus from the first transmit / receive point and the second transmit / receive point, wherein the reference signal reporting configuration is based on the capability information. The apparatus may be a user equipment.

[0013] According to a seventh aspect of the invention, a non-transitory computer-readable medium is provided, on which a computer-readable instruction set is stored, the computer-readable instruction set causing a device to perform at least a first method when executed by at least one processor. According to an eighth aspect of the invention, a non-transitory computer-readable medium is provided, on which a computer-readable instruction set is stored, the computer-readable instruction set causing a device to perform at least a second method when executed by at least one processor.

[0014] According to a ninth aspect of the invention, a computer program including instructions is provided, which, when executed by a device, cause the device to perform a first method. According to a tenth aspect of the invention, a computer program including instructions is provided, which, when executed by a device, cause the device to perform a second method. Attached Figure Description

[0015] Figure 1 Examples of network scenarios according to at least some example embodiments are shown; Figure 2a A UE using joint demodulation for Layer 4 downlink MIMO is shown according to at least some example embodiments; Figure 2b The illustration shows a UE using separate demodulation for Layer 4 downlink MIMO according to at least some example embodiments; Figure 3a The demodulation of desired and undesired signals by a UE is illustrated according to at least some example embodiments; Figure 3b The channel matrix is ​​shown according to at least some example embodiments; Figure 4 A first signaling diagram according to at least some example embodiments is shown; Figure 5 A second signaling diagram is shown according to at least some example embodiments; Figure 6 An example apparatus capable of supporting at least some of the example embodiments is shown; Figure 7 A flowchart illustrating a method according to at least some example embodiments is shown; Figure 8 This is a flowchart of a second method based on at least some example embodiments. Detailed Implementation

[0016] Embodiments of this disclosure provide improvements to the reference signal for reference signal reporting configuration, applicable at least to cellular communication networks. A User Equipment (UE) can send capability information to a Base Station (BS) indicating whether the UE has the capability to perform joint demodulation or separate demodulation. The BS can then consider the UE's capabilities when determining the reference signal reporting configuration for the UE, for reporting Channel State Information (CSI) associated with reference signals (RS) received by the UE from a first Transmit / Receive Point (TRP) and a second TRP. Therefore, the BS can optimize the scheduling of UE reporting and downlink RS to quickly receive accurate reports from the UE. Consequently, the BS can find the optimal beampair for the UE.

[0017] Figure 1 Examples of network scenarios are shown, based on at least some example embodiments. Figure 1 Example scenarios may exist in network environments, including UE 110, TRP 120 and 122, BS 130, and core network 140. UE 110 may connect to TRP 120 via air interface 115. UE 110 may include, for example, smartphones, cellular phones, machine-to-machine (M2M) nodes, machine-type communication (MTC) nodes, Internet of Things (IoT) nodes, degraded capability (RedCap) nodes, automotive telemetry units, laptops, tablets, ground / sea / air vehicles, or virtually any suitable wireless terminal.

[0018] BS 130 can be a network entity that configures some or all control information and allocates at least some resources to UE 110. BS 130 can control multiple TRPs 120 and 122, which can be co-located or non-co-located. Figure 1 This illustrates a scenario where TRPs 120 and 122 are non-co-located, meaning they reside in different physical devices. In the case of co-located TRPs, TRPs 120 and 122 can reside in the same physical device and share some common functions / circuit systems. That is, in the case of co-located TRPs, two antenna panels can be provided to generate co-located TRPs 120 and 122.

[0019] The air interface 115 between UE 110 and TRPs 120 and 122 can be configured according to a RAT, wherein UE 110 and TRPs 120 and 122 are configured to support the RAT. Examples of cellular RATs include Long Term Evolution (LTE), New Radio (NR), which may also be referred to as fifth-generation (5G) radio access technology, 6G, and MulteFire. Cellular RATs can be standardized by, for example, the 3rd Generation Partnership Project (3GPP). In the context of NR, BS 130 may be referred to as a gNB, while in the context of LTE, BS 130 may be referred to as an eNB. In any case, the exemplary embodiments of this disclosure are not limited to any particular wireless technology. Rather, the exemplary embodiments can be utilized in any wireless communication system in which signals are transmitted via two TRPs.

[0020] The TRP can connect to the BS 130 directly or via at least one intermediate node through wired interface 135, and the BS 130 can be further connected to the core network 140 through wired interface 145. The core network 140 can also connect to another network (…) via interface 145. Figure 1 (Not shown in the image) coupling, through which a connection to another network can be obtained, such as the global interconnection network.

[0021] Multiple receiver chains can be utilized, at least in cellular communication networks. For example, multiple receiver chains can be used in 3GPP Rel-18 and Rel-19, such as Layer 4 downlink MIMO in Frequency Range 2 (FR2). In this case, UE 110 can be equipped with multiple antenna panels (e.g., 2 panels) and multiple receiver chains (e.g., 2 dual-polarized receiver chains). At least in the FR2 case, UE 110 can utilize antenna array techniques to increase gain and link budget to form a refined beam. UE 110 can then guide the beam for optimal alignment with the transmitter (e.g., with the antenna array and analog phase shifter). The refined and guided beam may have significant sidelobes, thus picking up unwanted signals.

[0022] Figure 2a The illustration shows a UE using joint demodulation for Layer 4 downlink MIMO according to at least some example embodiments. Figure 2bThe illustration shows UEs using separate demodulation for Layer 4 downlink MIMO according to at least some example embodiments.

[0023] For example, Layer 4 downlink MIMO can be considered in an intra-cell multi-TRP framework with downlink control information (DCI) schemes (such as sDCI schemes, where each TRP120, 122 can transmit a 2-port CSI-RS beam). TRP120, 122 can belong to the cell physical cell identifier (PCI), and UE 110 can receive a first 2-port CSI RS resource CSI#1 on the first antenna array and a second 2-port CSI RS resource CSI#2 on the second antenna array, such as... Figure 2a As shown. In this scenario, the strong antenna sidelobes of UE 110 can cause unwanted signals to contaminate the desired received signal, which may be measured as a relatively high receiver antenna gain. The ratio between desired and unwanted gain can be significantly affected by the selection of TRP beam pairs. For example, beam pairs CSI#1 (transmitted by the first TRP 120) and CSI#2 (transmitted by the second TRP 122) may have only a 5dB gain difference at the receiver beam of UE 110, while beam pairs CSI#1 (transmitted by the first TRP 120) and CSI#3 (the third 2-port CSI-RS resource transmitted by the second TRP 122) may have a 15dB gain difference at the same receiver beam of UE 110, such as... Figure 2b As shown. Depending on how UE 110 performs demodulation of the received signal, unwanted signals may cause interference.

[0024] The demodulation process of UE 110 can be joint or separate, such as in a 4-layer DL MIMO. In some example embodiments, the choice of demodulation process can be fixed in the on-chip system hardware architecture. The process at UE 110 can differ depending on whether a joint demodulation process or separate demodulation processes are used for the four layers.

[0025] Figure 3a The demodulation of desired and undesired signals by a UE is illustrated according to at least some example embodiments. Figure 3b The channel matrix is ​​shown according to at least some example embodiments.

[0026] In joint demodulation, UE 110 can jointly and simultaneously demodulate all four layers using the four receiver chains, four analog-to-digital converters (ADCs), and four parallel Fast Fourier Transform (FFT) modules in the baseband unit. The entire 4×4 channel matrix (such as...) Figure 3b(As shown) can be reversed. Therefore, due to the detection of UE 110, there is no interference, and the beam pair that will achieve the highest throughput is the beam with the highest received signal reference power RSRP.

[0027] In the case of separate demodulation, UE 110 can demodulate 2x2 layers independently and autonomously. UE 110 may only invert the two 2x2 diagonal blocks of the entire 4x4 channel matrix, leaving the other two 2x2 off-diagonal blocks of the entire 4x4 channel matrix as interference, which will lead to reduced throughput and potentially suboptimal performance. Since some elements may generate interference and reduce the achievable throughput of the beam pair, optimal throughput will come from optimizing the signal-to-interference and noise ratio (SINR) rather than finding the optimal RSRP. The beam pair that optimizes SINR may differ from the beam pair that maximizes RSRP.

[0028] Therefore, at least one challenge is that interference may exist in separate demodulation, which may be transparent (eliminated) in joint demodulation, but the demodulation process used at UE 110 is unknown to the network. Group-based beam reporting (GBBR) can be provided to the beams of that group. L1-RSRP can only provide power feedback from the diagonal elements of the matrix, but not interference values. Furthermore, L1-SINR can provide interference values ​​from any interference source, so L1-SINR may not isolate interference from unwanted CSI signals of the beam pair individually.

[0029] If the network does not know the demodulation type (joint or separate) used by UE 110, it cannot determine how to configure RS reports based on whether UE 110 has the capability to perform joint demodulation or separate modulation. For example, the network cannot know when to configure GBBR for L1-RSRP or L1-SINR at UE 110. Therefore, the selected CSI beam for simultaneous scheduling cannot be adapted by BS 130 to the optimal beam pair selection (to limit interference from unwanted signals), and throughput optimization cannot be performed. Consequently, suboptimal performance will be achieved without improvement.

[0030] Furthermore, if a separate demodulation process is used at UE 110, beampup search itself will be suboptimal, at least if the number of beampup pairs to be measured is very high. If the network knows the type of demodulation process followed by UE 110, how beampup search is performed (simultaneous network scheduling of downlink RS and UE measurement and reporting pairs) can be further optimized to accelerate the search.

[0031] For example, if UE 110 uses joint demodulation, such as Figure 2aAs shown, the contribution of CSI#2 (transmitted by the second TRP 122) on the first antenna panel of UE 110 can be eliminated during signal decoding. Therefore, if CSI#1 (transmitted by the first TRP 120) and CSI#2 (transmitted by the second TRP 122) are beams with the best RSRP report, then CSI#1 and CSI#2 will constitute the optimal beam pair, i.e., the highest achievable throughput. However, if UE 110 will use separate demodulation, such as... Figure 2b As shown, CSI#2 (sent by the second TRP 122) will contribute significantly to the first antenna panel of UE 110, causing substantial interference. Therefore, beam pair selection requires optimization of received power and cross-beam interference. In this scenario, CSI#1 and CSI#2 will not be the optimal beam pair for separate demodulation of UE 110. Instead, CSI#1 and CSI#3 will be the optimal beam pair for throughput. Therefore, if BS 130 cannot distinguish between these two scenarios, it cannot optimize UE 110's UE reports, such as whether UE 110 reports RSRP or SINR, and downlink RS scheduling (which is paired simultaneously, if any), to obtain the fastest and most accurate reports from UE 110 and find the optimal beam pair.

[0032] Therefore, at least some example embodiments of this disclosure enable BS 130 to distinguish the scenarios and configure the RS report of UE 110 accordingly. UE 110 may indicate to BS 130 whether it has the capability to perform joint demodulation or separate demodulation of the transport layer, which is received by UE 110 from the first TRP 120 and the second TRP 122, respectively. Subsequently, BS 130 may determine the RS report configuration for UE 110 based on the capability information of UE 110 and send the configuration to UE 110. The RS report configuration may be associated with RSs sent by the first TRP 120 and the second TRP 122.

[0033] For example, BS 130 can provide the associated GBBR configuration to UE 110 using Radio Resource Control (RRC) signaling based on the demodulation capabilities reported by UE 110. In the case of joint demodulation, BS 130 can determine that UE 110's RS report configuration is an L1-RSRP GBBR configuration. In the case of separate demodulation, BS 130 can determine that UE 110's RS report configuration is an L1-SINR GBBR configuration.

[0034] In some example embodiments, when demodulated separately, BS 120 can determine beam-to-UE receiver chain associations for UE 110 for crosstalk reporting of each CSI resource. An RS reporting configuration can be used to report CSI, and the CSI measurement configuration can be specific to beam pairs including both the expected channel / reference signal and the interfering channel / reference signal. This configuration can include explicit interference sources: CSI-IM = NZP-CSI-RS. Alternatively or additionally, BS 130 can add a CSI-IM resource for general interference that can be reported, including known interference sources and any other interference.

[0035] In some example embodiments, BS 130 can associate its scheduling of downlink RSs with the demodulation capabilities reported by UE 110. In the case of joint demodulation, BS 130 can schedule independent 2-port CSI-RS resources (sequentially or simultaneously). In the case of separate demodulation, BS 130 can schedule separate pairs of sequential 2-port CSI-RS resources.

[0036] When UE 110 is configured to report only L1-RSRP GBBR and not L1-SINR GBBR, BS 130 can schedule independent 2-port CSI-RS resources from the first TRP 120 and the second TRP 122 as downlink RS (sequentially or independently), and select the two optimal beams based solely on received power rather than interference. However, when UE 110 is configured to report L1-SINR GBBR, BS 130 can sequentially schedule pairs of 2-port CSI-RS resources from the first TRP 120 and the second TRP 122 until it finds the optimal combination. This exhaustive search is then limited to UEs that have already reported separate demodulation capabilities.

[0037] In some example embodiments, the RRC configuration for the “separate” case may have two sets for the expected signal and two sets for the interference, wherein the interference resources may be mirrored from the expected resources, and there may be a one-to-one mapping between the expected channel measurement set and the interference measurement set.

[0038] Figure 4 A first signaling diagram is shown according to at least some example embodiments. Figure 4 This shows the RS report based on the UE 110 report's joint demodulation capability. The values ​​are set from left to right on the vertical axis. Figure 1 BS 130 and UE 110. Time progresses from top to bottom.

[0039] In step 402, connection establishment can be performed. UE 110 can send information about its capabilities to BS 130, such as capability information indicating whether UE 110 has the ability to perform joint demodulation (bit-1) or separate demodulation (bit-0) of the transport layer received by UE 110 from first TRP 120 and second TRP 122. In step 404, UE 110 can be moved to the RRC connected state. The transport layer and RS can be transmitted from two different antenna panels of the same TRP, where the same TRP will include first TRP 120 and second TRP 122, or from two different TRPs. In some example embodiments, a set of N transport layers can be received from N different antenna panels of the same TRP and / or from N different TRPs (or any combination of antenna panels and TRPs for each TRP).

[0040] At step 406, BS 130 can determine the RS reporting configuration for the user equipment based on capability information. This RS reporting configuration is used to report CSIs associated with RSs transmitted by the first TRP 120 and the second TRP 122, respectively. If UE 110 supports joint demodulation (bit-1), then L1-RSRP provides the optimal beam pair for Layer 4 downlink MIMO. If UE 110 supports separate demodulation (bit-0), then L1-SINR provides the optimal beam pair for Layer 4 downlink MIMO.

[0041] exist Figure 4 In the example, when the capability information indicates that UE 110 has the capability to perform joint demodulation, BS 130 can therefore determine that the RS report configuration includes the RSRP report configuration. In some example embodiments, BS 130 can determine the RS configuration for UE 110 based on the capability information for sending and receiving RS from the first TRP 120 and the second TRP 122.

[0042] At step 408, BS 130 may send an RS report configuration to UE 110, which includes an RSRP report configuration. For example, BS 130 may send an RRC configuration with a GBBR based on L1-RSRP reports. At step 410, when capability information indicates that UE 110 has the capability to perform joint demodulation, BS 130 may configure RSs from the first TRP 120 and the second TRP 122 independently of each other. That is, downlink RSs can be independently scheduled from either TRP for downlink RSRP calculation at UE 110.

[0043] In steps 412 to 418, BS 130 can send RS to UE 110 from the first TRP 120 and the second TRP 122 according to the RS configuration. In step 412, BS 130 can send 2-port CSI RS resource CSI RS#1 (for H+V polarization) from the first TRP 120. In step 414, BS 130 can send 2-port CSI RS resource CSI RS#2 (for H+V polarization) from the first TRP 120. In step 416, BS 130 can send 2-port CSI RS resource CSI RS#3 (for H+V polarization) from the second TRP 122. In step 418, BS 130 can send 2-port CSI RS resource CSI RS#4 (for H+V polarization) from the second TRP 122.

[0044] In step 420, UE 110 may have received each downlink RS and, based on the received RS, determines two optimal CRIs (one for each TRP) according to the optimal RSRP value. In step 422, UE 110 can report the two optimal CRIs to BS 130. For example, UE 110 can report the L1-RSRP values ​​of beams that can be received simultaneously in the GBBR. At step 424, BS 130 can perform optimal beam pair selection based on UE 110's report of optimal RSRPs. In step 426, BS 130 can perform Layer 4 Physical Downlink Shared Channel (PDSCH) scheduling.

[0045] Figure 5 A second signaling diagram is shown according to at least some example embodiments. Figure 5 This shows the RS report based on the demodulation capabilities reported by UE 110. The values ​​are set from left to right on the vertical axis. Figure 1 BS 130 and UE 110. Time progresses from top to bottom. Steps 402 to 406 can be performed before step 502, but... Figure 5 In the example, when the capability information indicates that UE 110 has the capability to perform separate demodulation, BS 130 can determine that the RS report configuration includes the SINR report configuration.

[0046] At step 502, BS 130 may send an RS report configuration to UE 110, which includes a SINR report configuration. For example, BS 130 may send an RRC configuration with a GBBR based on L1-SINR reporting. At step 504, BS 130 may send a received power threshold for reporting candidate beams to UE 110. The threshold may be a threshold for a good RSRP value for UE beam selection using SINR. At step 506, BS 130 may send periodic SS bursts for L1 measurement. At step 508, UE 110 may classify the highest RSRP beams and map the RSRP value of each beam to all antenna panels of UE 110. At step 510, UE 110 may select candidate beam pairs (e.g., synchronization signal block (SSB) beams) that have a good RSRP based on the threshold and a low SINR. At step 512, UE110 may send information to BS 130 about SSB beams that can be simultaneously received by UE110, i.e. SSB beams that are received on different antenna panels of UE110 with good RSRP (above the threshold) and low SINR.

[0047] At step 514, when the capability information indicates that UE 110 has the capability to perform separate demodulation, BS 130 can configure a pair of RS resources from the first TRP 120 and the second TRP 122 to be transmitted simultaneously. BS 130 can also configure one RS resource in the RS resource pair for interference measurement. That is, a pair of downlink RS resources can be scheduled from both TRPs (simultaneously) for downlink SINR calculation at UE 110. At step 516, BS 130 can select the CSI beam from candidate beams (such as the SSB beam) reported by UE 110.

[0048] At step 518, BS 130 may send RS configuration to UE 110 to configure RS for measuring interference. For example, BS 130 may send RRC configuration for CSI resources to measure interference caused by each beam in the candidate beam pair.

[0049] In steps 520 to 534, BS 130 can transmit RS to UE 110 from the first TRP 120 and the second TRP 122 according to the RS configuration. In step 520, BS 130 can transmit 2-port CSI RS resource CSI RS#1 (for H+V polarization) from the first TRP 120, which is configured as the expected signal, and transmit 2-port CSI RS resource CSI RS#3 (for H+V polarization) from the second TRP 122, which is configured as the interference source. In step 522, BS 130 can transmit 2-port CSI RS resource CSI RS#1 (for H+V polarization) from the first TRP 120, which is configured as the interference source, and transmit 2-port CSI RS resource CSI RS#3 (for H+V polarization) from the second TRP 122, which is configured as the expected signal. In step 524, BS 130 may transmit 2-port CSI RS resource CSI RS#2 (for H+V polarization) from the first TRP 120 configured as the expected signal, and transmit 2-port CSI RS resource CSI RS#4 (for H+V polarization) from the second TRP 122 configured as the interference source. In step 526, BS 130 may transmit 2-port CSI RS resource CSI RS#2 (for H+V polarization) from the first TRP 120 configured as the interference source, and transmit 2-port CSI RS resource CSI RS#4 (for H+V polarization) from the second TRP 122 configured as the expected signal.

[0050] In step 528, BS 130 can transmit 2-port CSI RS resource CSI RS#1 (for H+V polarization) from the first TRP 120 configured as the expected signal, and transmit 2-port CSI RS resource CSI RS#4 (for H+V polarization) from the second TRP 122 configured as the interference source. In step 530, BS 130 can transmit 2-port CSI RS resource CSI RS#1 (for H+V polarization) from the first TRP 120 configured as the interference source, and transmit 2-port CSI RS resource CSI RS#4 (for H+V polarization) from the second TRP 122 configured as the expected signal. In step 532, BS 130 can transmit 2-port CSI RS resource CSI RS#2 (for H+V polarization) from the first TRP 120 configured as the expected signal, and transmit 2-port CSI RS resource CSI RS#3 (for H+V polarization) from the second TRP 122 configured as the interference source. In step 534, BS 130 may send 2-port CSI RS resource CSI RS#2 (for H+V polarization) from the first TRP 120 configured as an interference source, and send 2-port CSI RS resource CSI RS#3 (for H+V polarization) from the second TRP 122 configured as the expected signal.

[0051] In step 536, UE 110 may have received each downlink RS and, based on the received RS, determines two optimal CRIs (one for each TRP) according to the optimal SINR value. In step 538, UE 110 may report the two optimal CRIs to BS 130. For example, UE 110 may report the L1-SINR values ​​of beams that can be received simultaneously in the GBBR. At step 540, BS 130 may perform optimal beam pair selection based on UE 110's report of optimal SINR. In step 542, BS 130 may perform Layer 4 Physical Downlink Shared Channel (PDSCH) scheduling. In some example embodiments, the RRC configuration for separate modulation may include two sets for the intended signal and two sets for interference, wherein the interference resources may be mirrored from the intended resources, and a one-to-one mapping may exist between the intended channel measurement set and the interference measurement set.

[0052] With UE 110 reporting individual demodulation techniques as a capability, BS 130 can have cross-beam power level reporting to calculate optimal beam pairs. For example, L1-SINR can provide interference levels from any interference source, not just from candidate CSI beams.

[0053] In some example embodiments, the 3GPP standard specification TS 38.214 can be modified to cover at least some parts of this disclosure. For example, different measurement configurations can be explicitly defined in TS 38.214 for different demodulation schemes, where the BS130 provides interference resources for L1-SINR calculation, as follows: For aperiodic CSI, and for aperiodic CSI resource settings, if groupBasedBeamReporting-r17 is configured and UE-jointRXCapability='Separate', each trigger state configured using the higher-layer parameter CSI-AperiodicTriggerState is associated with resourcesForChannel and resourcesForChannel2, which correspond to the first resource set and the second resource set, and nzp-CSI-RS-ResourceForChannel and nzp-CSI-RS-ResourceForChannel2, respectively, for L1-SINR measurement; For periodic and semi-persistent CSI resource settings, if groupBasedBeamReporting-r17 and UE-jointRXCapability='Separate' are configured; and When two resource settings are configured, the first resource setting (given by the higher-layer parameter `resourcesForChannelMeasurement`) is for channel measurements on the SSB or NZP-CSI-RS, and the second resource setting (given by the higher-layer parameter `csi-IM-ResourcesForInterference`) is for interference measurements performed on the CSI-IM or NZP-CSI-RS. In this case, the number of CSI-Resource sets configured for channel measurements in the resource settings is 2. Furthermore, the number of NZP-CSI resources configured for interference measurements in the resource settings is 2. For L1-SINR calculation, the first resource setting (given by the higher-layer parameter `resourcesForChannelMeasurement`) is used for channel measurements performed on the NZP-CSI-RS. The second resource setting (given by the higher-layer parameter `csi-IM-ResourcesForInterference` or the higher-layer parameter `nzp-CSI-RS-ResourceForInterference`) is used for interference measurements performed on the CSI-IM or NZP-CSI-RS. For each L1-SINR value, each SSB or NZP-CSI-RS resource for channel measurements is associated with one CSI-IM resource or one NZP-CSI-RS resource for interference measurements, based on the ordering of SSB or NZP-CSI-RS resources for channel measurements and CSI-IM resources or NZP-CSI-RS resources for interference measurements within the corresponding resource set. The number of SSB or CSI-RS resources for channel measurements is equal to the number of CSI-IM resources or NZP-CSI-RS resources for interference measurements.

[0054] The above modifications may be effective for aperiodic, periodic, and semi-persistent resources.

[0055] In some example embodiments, for BS 130, knowing how many panels are receiving a given CSI RS can be valuable information to reduce the number of measurement configurations and the number of downlink RSs that must be scheduled from the network. For example, if a given CSI RS is detected only on a single antenna panel of UE 110, any beam pair including that CSI beam will not suffer interference due to that CSI beam. Therefore, the network does not need to schedule additional interference measurements. On the other hand, if a given CSI is measured at similar power levels on two antenna panels of UE 110, any beam pair including that CSI beam needs to have the interference level between the CSI beams checked, as this could lead to a decrease in throughput.

[0056] In some example embodiments, UE 110 can report power levels received from any given CSI beam from multiple UE receive panels. For this purpose, measurement configurations can be sent from the network to the UE, including the association between the beam of BS 130 (i.e., the Transmission Configuration Index (TCI) state) and the antenna panels of UE 110 (i.e., the receiver chain or sounding reference signal (SRS) resource set of UE 110), for example, using the association of Channel Measurement Resources (CMR) resources and their groups.

[0057] Such a measurement configuration can be part of a GBBR configuration, where the number of panels measuring a particular SSBRI / CRI resource can be explicitly indicated. Alternatively, the received power level for each panel of each beam can be explicitly indicated, or the BS 130 can configure thresholds for “neighboring” panels, allowing the UE 110 to consider or disregard SSBRI / CRI resources. In some example embodiments, the antenna panels of the UE 110 can be described as receiver chains or SRS resource sets.

[0058] In some example embodiments, using the indication from UE 110, the network can know the number of modules associated with each beam and configure how many RS are needed to find the optimal beam pair from an L1-SINR perspective.

[0059] Even when using scenarios with two TRPs in various example embodiments, operation can be similarly extended to three or more (co-located or non-co-located) TRPs. For example, in N In the case of one TRP, one CSI-RS resource from a given TRP can be used for direct channel estimation, and from N-1 The remaining TRP N-1 One CSI-RS resource can be used for interference measurement.

[0060] In some example embodiments, BS 130 may receive capability information from UE 110, which indicates whether UE 110 has the capability to perform joint demodulation or separate demodulation of N transport layers, wherein the N transport layers are selected by UE 110 from [the respective transport layers]. N The TRP receives this information. Then, the BS 130 can determine the reference signal reporting configuration for the UE 110 based on the capability information, for reporting with... N The TRP sends the reference signal associated with the CSI and sends the reference signal report configuration to UE 110.

[0061] In some example embodiments, BS 130 can determine a reference signal configuration for UE 110 based on capability information, for use from N Each TRP sends a reference signal and configures the TRP based on the reference signal. NEach TRP sends a reference signal to UE 110.

[0062] In some example embodiments, when capability information indicates that UE 110 has the capability to perform joint demodulation, from N TRP N Each reference signal resource can be configured independently of the others.

[0063] In some example embodiments, when capability information indicates that UE 110 has the capability to perform separate demodulation, it can be configured (and may be transmitted simultaneously) to... N TRP N A set of reference signal resources, and N In a set of reference signal resources N-1 A reference signal resource can be configured for interference measurement.

[0064] In some example embodiments, BS 130 can be configured to target... N Multiple TRPs are configured N It cycles through a set of reference signal resources and sends them in chronological order. N Multiple sets of reference signal resources.

[0065] Figure 6 An example apparatus capable of supporting at least some of the example embodiments is shown. Device 600 is shown, which may include, for example, UE 110 or BS 130. Device 600 includes a processor 610, which may include, for example, a single-core or multi-core processor, wherein the single-core processor includes one processing core, and the multi-core processor includes more than one processing core. Processor 610 typically includes a control device. Processor 610 may include more than one processor. Processor 610 may be a control device. Processor 610 may include at least one application-specific integrated circuit (ASIC). Processor 610 may include at least one field-programmable gate array (FPGA). Processor 610 may include at least one Qualcomm Snapdragon and / or Intel Atom processor. Processor 610 may include, for example, a Cortex-A8 processing core manufactured by ARM Holdings or a Steamroller processing core manufactured by Advanced Micro Devices Corporation. Processor 610 may be a component for performing method steps (such as determining, causing transmission, and causing reception) in device 600. Processor 610 may be configured at least in part by computer instructions to perform actions.

[0066] A processor may include, or be configured as, one or more circuit systems configured to perform stages of the methods according to the example embodiments described herein. As used herein, the term “circuit” may refer to one or more or all of the following: (a) hardware-only; (b) a hardware-only circuit implementation (such as an implementation in analog and / or digital circuits only); and (c) a combination of hardware circuits and software, such as (if applicable): (i) a combination of (multiple) analog and / or digital hardware circuits with software / firmware; and (ii) any portion of (multiple) hardware processors having software (including (multiple) digital signal processors), software, and (multiple) memories, which work together to enable a device (such as a network function) to perform various functions; and (d) (multiple) hardware circuits and / or (multiple) processors, such as (multiple) microprocessors or portions thereof, which require software (e.g., firmware) to operate, but may be absent when the software is not required to operate.

[0067] The definition of "circuit system" applies to all uses of the term in this application, including any claim. As yet another example, as used in this application, the term "circuit system" also covers implementations of hardware circuitry or processors (or processors) or a portion thereof, including but not limited to hardware circuitry or processors and their accompanying software and / or firmware. The term "circuit system" also covers, for example (and if applicable to a particular claim element), baseband integrated circuits or processor integrated circuits for mobile devices or similar integrated circuits in servers, cellular network devices, or other computing or networking devices.

[0068] Device 600 may include memory 620. Memory 620 may include random access memory and / or permanent memory. Memory 620 may include at least one RAM chip. For example, memory 620 may include solid-state, magnetic, optical, and / or holographic memory. Memory 620 may be at least partially accessible by processor 610. Memory 620 may be at least partially included in processor 610. Memory 620 may be a component for storing information. Memory 620 may include computer instructions configured to be executed by processor 610. When computer instructions configured to cause processor 610 to perform certain actions are stored in memory 620, and device 600 as a whole is configured to operate under the guidance of processor 610 using computer instructions from memory 620, processor 610 and / or at least one of its processing cores may be considered configured to perform certain actions. Memory 620 may be at least partially included in processor 610. Memory 620 may be at least partially external to device 600, but is accessible to device 600.

[0069] Device 600 may include a transmitter 630. Device 600 may include a receiver 440. Transmitter 630 and receiver 640 may be configured to transmit and receive information according to at least one cellular or non-cellular standard. Transmitter 630 may include more than one transmitter. Receiver 640 may include more than one receiver. For example, transmitter 630 and / or receiver 640 may be configured to operate according to Global System for Mobile Communications (GSM), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), and / or 5G / NR standards.

[0070] Device 600 may include a near-field communication (NFC) transceiver 650. The NFC transceiver 650 may support at least one NFC technology, such as Bluetooth, Wibree, or similar technologies.

[0071] Device 600 may include a user interface (UI) 660. UI 660 may include at least one of a display, keyboard, touchscreen, vibrator arranged to signal to the user by causing device 600 to vibrate, speaker, and microphone. The user may be able to operate device 600 via UI 660, for example, to accept incoming telephone calls, initiate telephone or video calls, browse the internet, manage digital files stored in memory 620 or accessible in the cloud via transmitter 630 and receiver 640 or via NFC transceiver 650, and / or play games.

[0072] Device 600 may include or be arranged to accept a subscriber identity module 670. Subscriber identity module 670 may include, for example, a subscriber identity module SIM card that can be installed in device 600. Subscriber identity module 670 may include subscription information identifying a user of device 600. Subscriber identity module 670 may include password information that can be used to verify the identity of the user of device 600 and / or facilitate the encryption of transmitted information and billing of the user of device 600 for communications performed via device 600.

[0073] Processor 610 may be equipped with a transmitter arranged to output information from processor 610 to other devices included in device 600 via electrical leads within device 600. Such a transmitter may include a serial bus transmitter arranged to output information to memory 620 for storage, for example, via at least one electrical lead. Alternatively, the transmitter may include a parallel bus transmitter. Similarly, processor 610 may include a receiver arranged to receive information from other devices included in device 600 via electrical leads within device 600. Such a receiver may include a serial bus receiver arranged to receive information from receiver 640, for example, via at least one electrical lead, for processing within processor 610. Alternatively, the receiver may include a parallel bus receiver.

[0074] Device 600 may include Figure 6 Other devices not shown. For example, in the case where device 600 includes a smartphone, it may include at least one digital camera. Some devices 600 may include a rear camera and a front camera, wherein the rear camera may be designed for digital photography and the front camera for video calling. Device 600 may include a fingerprint sensor arranged to at least partially authenticate the user of device 600. In some embodiments, device 600 lacks at least one of the above-mentioned devices. For example, some devices 600 may lack an NFC transceiver 650 and / or a user identity module 670.

[0075] Processor 610, memory 620, transmitter 630, receiver 640, NFC transceiver 650, UI 660, and / or user identity module 670 can be interconnected in various ways via electrical leads within device 600. For example, each of the aforementioned devices can be individually connected to the main bus within device 600 to allow the devices to exchange information. However, as those skilled in the art will understand, this is merely an example, and various ways of interconnecting at least two of the aforementioned devices may be chosen depending on the embodiment without departing from the scope of the embodiment.

[0076] Figure 7 This is a flowchart of a first method according to at least some example embodiments. The stages of the first method shown can be performed by BS 130.

[0077] The first method may include, at step 710, receiving capability information from the user equipment by the wireless network node. This capability information indicates whether the user equipment has the capability to perform joint demodulation or separate demodulation at the transport layer, which is received by the user equipment from a first transmit / receive point and a second transmit / receive point. The first method may further include, at step 720, determining a reference signal reporting configuration for the user equipment based on the capability information. This reference signal reporting configuration is used to report channel state information associated with reference signals transmitted by the first transmit / receive point and the second transmit / receive point. Finally, the first method may include, at step 730, sending the reference signal reporting configuration to the user equipment by the wireless network node.

[0078] Figure 8 This is a flowchart of a second method according to at least some example embodiments. The stages of the second method shown can be performed by UE 110.

[0079] The second method may include: at step 810, the user equipment (UE) sends capability information to the wireless network node, the capability information indicating whether the UE has the capability to perform joint demodulation or separate demodulation of the transport layer, which is received by the UE from a first transmit / receive point and a second transmit / receive point. The second method may further include: at step 820, the UE receives a reference signal report configuration for the UE from the wireless network node, the reference signal report configuration being used to report channel state information associated with reference signals received by the UE from the first transmit / receive point and the second transmit / receive point, wherein the reference signal report configuration is based on the capability information.

[0080] It should be understood that the disclosed example embodiments are not limited to the specific structures, process steps, or materials disclosed herein, but are extended to their equivalents, as will be recognized by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting.

[0081] Throughout this specification, any reference to an exemplary embodiment or an exemplary embodiment implies that a particular feature, structure, or characteristic described in connection with the exemplary embodiment is included in at least one exemplary embodiment. Therefore, the phrases "in one exemplary embodiment" or "in an exemplary embodiment" appearing in various places throughout this specification do not necessarily refer to the same exemplary embodiment. Where numerical values ​​are referred to using terms such as, for example, approximately or substantially, precise numerical values ​​are also disclosed.

[0082] As used herein, for convenience, multiple items, structural elements, constituent elements, and / or materials may be presented in a common list. However, these lists should be interpreted as if each member of the list were individually identified as a separate and unique member. Therefore, without indication to the contrary, any individual member of such a list should not be construed as a de facto equivalent of any other member of the same list solely based on their presentation in the common group. Furthermore, various exemplary embodiments and examples may be referenced herein along with alternatives to their various components. It should be understood that such exemplary embodiments, examples, and alternatives should not be construed as de facto equivalents of each other, but should be considered as separate and autonomous representations.

[0083] In the example embodiments, the apparatus, including, for example, UE 110 or BS 130, may also include components for performing the example embodiments described above and any combinations thereof. The apparatus may be a cellular communication network (such as a 5G network) and includes components for operating within the cellular communication network.

[0084] In an example embodiment, a computer program including instructions, when executed by a computer, causes the computer to perform a method according to the example embodiments described above and any combination thereof. In an example embodiment, a computer program product embodied on a non-transitory computer-readable medium can be configured to control a processor to perform processes including the example embodiments described above and any combination thereof.

[0085] In the example embodiments, the apparatus, including, for example, UE 110 or BS 130, may further include at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to perform at least the example embodiments described above and any combination thereof. The apparatus may be a cellular communication network (such as a 5G network) and is configured to operate within a cellular communication network.

[0086] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more exemplary embodiments. Numerous specific details, such as examples of length, width, shape, etc., have been provided in the foregoing description to provide a thorough understanding of exemplary embodiments of the invention. However, those skilled in the art will recognize that the invention can be practiced without one or more specific details or using other methods, components, materials, etc. In other instances, well-known structures, materials, or operations have not been shown or described in detail to avoid obscuring aspects of the invention.

[0087] While the foregoing examples illustrate the principles of exemplary embodiments in one or more specific applications, it will be apparent to those skilled in the art that many modifications can be made to the form, use, and details of the implementations without inventive effort and without departing from the principles and concepts of the invention. Therefore, the invention is not intended to be limited except by the claims set forth below.

[0088] The verbs “comprising” and “including” are used herein as open-ended restrictions, neither excluding nor requiring the presence of any unlisted features. Unless otherwise expressly stated, the features recited in the dependent claims may be freely combined with each other. Furthermore, it should be understood that the use of “a” or “an” (i.e., the singular form) throughout this document does not exclude a plurality.

[0089] The phrase “at least one of A or B” in this document means either A or B, or both A and B.

[0090] Industrial applicability At least some example implementations have found industrial applications in cellular communication networks (such as 5G networks), and industrial applications may also be found in other cellular communication networks in the future.

[0091] List of acronyms 3GPP Third Generation Partnership Project ADC analog-to-digital converter BS base station CMR channel measurement resources CSI Channel Status Information D2D device to device DCI downlink control information FFT (Fast Fourier Transform) FR frequency range GBBR Group-Based Beam Reporting GSM Global Mobile Communication System IoT LTE Long Term Evolution M2M (Machine-to-Machine) MAC Media Access Control MIMO (Multiple Input Multiple Output) NFC Near Field Communication NR New Radio PCI Physical Cell Identifier PDSCH Physical Downlink Shared Channel RAT radio access technology RedCap reduces ability RRC Radio Resource Control RS reference signal RSRP Received Signal Reference Power SINR signal-to-interference and noise ratio SRS detection reference signal SSB Synchronization Signal Block TCI Transport Configuration Index TRP Transmitter / Receiver Point UE User Equipment UI User Interface WCDMA Wideband Code Division Multiple Access WiMAX Global Microwave Access Interoperability WLAN wireless local area network List of reference numerals

Claims

1. An apparatus comprising: At least one processor; as well as At least one memory stores instructions that, when executed by the at least one processor, cause the device to at least: - Receive capability information from the user equipment, the capability information indicating whether the user equipment has the capability to perform joint demodulation or separate demodulation on the transport layer, the transport layer being received by the user equipment from a first transmit / receive point and a second transmit / receive point; as well as - Based on the capability information, a reference signal reporting configuration for the user equipment is determined, the reference signal reporting configuration being used to report channel state information associated with reference signals transmitted by the first transmit / receive point and the second transmit / receive point; as well as - Send the reference signal report configuration to the user equipment.

2. The apparatus of claim 1, wherein the reference signal reporting configuration is a group-based beam reporting configuration.

3. The apparatus according to claim 1 or 2, wherein the stored instructions, when executed by the at least one processor, further cause the apparatus to at least: - When the capability information indicates that the user equipment has the capability to perform joint demodulation, it is determined that the reference signal reporting configuration includes a reference signal received power reporting configuration.

4. The apparatus according to any one of the preceding claims, wherein the stored instructions, when executed by the at least one processor, further cause the apparatus to at least: - When the capability information indicates that the user equipment has the capability to perform separate demodulation, it is determined that the reference signal reporting configuration includes a signal-to-interference and noise ratio reporting configuration.

5. The apparatus according to any one of the preceding claims, wherein the stored instructions, when executed by the at least one processor, further cause the apparatus to at least: - Determine a reference signal configuration for the user equipment based on the capability information, the reference signal configuration being used to transmit the reference signal from the first transmit / receive point and the second transmit / receive point; and - According to the reference signal configuration, a reference signal is transmitted from the first transmit / receive point and the second transmit / receive point to the user equipment.

6. The apparatus of claim 5, wherein when the capability information indicates that the user equipment has the capability to perform joint demodulation, the reference signal resources from the first transmit / receive point and the second transmit / receive point are configured independently of each other.

7. The apparatus according to any one of the preceding claims, wherein when the capability information indicates that the user equipment has the capability to perform separate demodulation, a pair of reference signal resources from the first transmit / receive point and the second transmit / receive point are configured, and wherein one of the pair of reference signal resources is configured for interference measurement.

8. The apparatus according to any one of the preceding claims, wherein the stored instructions, when executed by the at least one processor, further cause the apparatus to at least: - Cycle through multiple pairs of reference signal resources configured for the first transmit / receive point and the second transmit / receive point; and - The multiple pairs of reference signal resources are transmitted in chronological order.

9. The apparatus according to any one of claims 6 to 8, wherein the reference signal is a channel state information reference signal, and the reference signal resource is a 2-port channel state information reference signal resource.

10. The apparatus according to any one of the preceding claims, wherein the stored instructions, when executed by the at least one processor, further cause the apparatus to at least: - Send the receive power threshold for the reported candidate beam to the user equipment; and - Receive from the user equipment an indication of candidate beams that can be simultaneously received by the user equipment, wherein the candidate beams are beams received by the user equipment at a power higher than the threshold.

11. An apparatus comprising: At least one processor; as well as At least one memory stores instructions that, when executed by the at least one processor, cause the device to at least: - Send capability information to a wireless network node, the capability information indicating whether the device has the capability to perform joint demodulation or separate demodulation of the transport layer, which is received by the device from a first transmit / receive point and a second transmit / receive point; as well as - Receive a reference signal reporting configuration for the device from the wireless network node. The reference signal reporting configuration is used to report channel state information associated with reference signals received by the device from the first transmit / receive point and the second transmit / receive point, wherein the reference signal reporting configuration is based on the capability information.

12. The apparatus of claim 11, wherein the reference signal reporting configuration is a group-based beam reporting configuration.

13. The apparatus of claim 11 or 12, wherein when the capability information indicates that the apparatus has the capability to perform joint demodulation, the reference signal reporting configuration includes a reference signal received power reporting configuration.

14. The apparatus according to any one of claims 11 to 13, wherein when the capability information indicates that the apparatus has the capability to perform separate demodulation, the reference signal reporting configuration includes a signal-to-interference and noise ratio reporting configuration.

15. A method comprising: - A wireless network node receives capability information from a user equipment, the capability information indicating whether the user equipment has the capability to perform joint demodulation or separate demodulation of the transport layer, the transport layer being received by the user equipment from a first transmit / receive point and a second transmit / receive point; as well as - The wireless network node determines a reference signal reporting configuration for the user equipment based on the capability information. The reference signal reporting configuration is used to report channel state information associated with reference signals transmitted by the first transmit / receive point and the second transmit / receive point. as well as - The reference signal report configuration is sent from the wireless network node to the user equipment.

16. A method comprising: - The user equipment sends capability information to the wireless network node, the capability information indicating whether the user equipment has the capability to perform joint demodulation or separate demodulation of the transport layer, the transport layer being received by the user equipment from a first transmit / receive point and a second transmit / receive point; as well as - The user equipment receives a reference signal reporting configuration for the user equipment from the wireless network node. The reference signal reporting configuration is used to report channel state information associated with reference signals received by the user equipment from the first transmit / receive point and the second transmit / receive point, wherein the reference signal reporting configuration is based on the capability information.

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