Channel state information reporting for wireless communication

Abstract

Methods and apparatuses for wireless communication networks are provided. According to an aspect of some embodiments, a method is provided, performed by a wireless device (300) comprising at least two receive (Rx) port groups, wherein each of the at least two Rx port groups comprises one or more antenna ports for wireless reception at the wireless device. The method comprises receiving (501), from a network node (400), a configuration for channel state information (CSI) reporting. The method further comprises determining (502) one or more CSIs based on the configuration for CSI reporting, wherein each of the one or more CSIs is associated with an Rx port group of the at least two Rx port groups. The method further comprises generating (503) a CSI report comprising the one or more CSIs, and reporting (504) or transmitting the CSI report to the network node (400).

Description

Technical Field

[0001] This disclosure relates to the field of wireless communications, and in particular to methods and apparatus for reporting channel state information (CSI) in wireless communication networks such as advanced 5G networks. Background Technology

[0002] The Radio Access Technology (RAT) in fifth-generation (5G) mobile communication systems, also known as 5G New Radio (NR), offers a higher level of performance and flexibility than previous generations of mobile communication systems. The demand for ubiquitous connectivity from various applications, including data applications such as automotive communications, remote control with feedback, and video downloading, has driven the development of 5G mobile communications. Data applications target Internet of Things (IoT) devices and Machine-Type Communication (MTC) devices. 5G wireless technology brings several key benefits, such as faster speeds, lower latency, and improved connectivity. The 3rd Generation Partnership Project (3GPP) provides a complete system specification for the 5G network architecture, which includes at least the Radio Access Network (RAN), Core Transport Network (CN), and service capabilities.

[0003] Wireless devices that achieve wireless reception through spatial multiplexing of data streams (i.e., multi-layer reception) are equipped with One receive (Rx) antenna port. For those equipped with Wireless devices with multiple receive (Rx) antenna ports face challenges in channel state information (CSI) reporting and network scheduling due to the incoherence of data reception at multiple antenna ports, for example. Summary of the Invention

[0004] Reception at the Rx antenna ports of a wireless device may be coherent or incoherent. If a given Rx port cannot achieve coherent reception with at least one other Rx port, the wireless device can be understood to be performing incoherent or partially coherent reception. Coherent reception on a set of ports can be understood to involve at least one of the following: the ports have a common clock / oscillator, or the clock / oscillator on said ports can be synchronized / kept synchronized; frequency and / or phase distortion on said ports can be estimated / compensated during reception at said ports; a joint Rx processing chain or a jointly operable RF processing chain on said ports. If any given Rx port cannot achieve coherent reception with any other Rx port, the wireless reception at the wireless device is incoherent. If an Rx port has two or more suitable subsets, then the wireless reception is partially coherent, wherein the Rx ports within a subset are coherent, and the Rx ports from the first subset are incoherent with those from the second subset. This partially coherent data reception presents challenges for CSI reporting and network scheduling at the wireless device. This invention proposes several methods to address these challenges.

[0005] The purpose of these embodiments is to provide a method and apparatus for CSI feedback reporting for wireless communication networks such as advanced 5G networks. CSI feedback reporting is used interchangeably with CSI reporting herein.

[0006] According to one aspect of some embodiments herein, a method is provided, performed by a wireless device including at least two groups of receive (Rx) ports, wherein each of the at least two groups of Rx ports includes one or more antenna ports for wireless reception at the wireless device. The method includes: Receive configuration from network nodes for Channel State Information (CSI) reports. One or more CSIs are determined based on the configuration used for CSI reporting, wherein each of the one or more CSIs is associated with an Rx port group in the at least two Rx port groups. Generate a CSI report that includes one or more of the CSIs, and Report to network nodes or send CSI reports.

[0007] According to another aspect of some embodiments herein, a method is provided, performed by a wireless device. The method includes generating a UE capability report, wherein the UE capability report includes information relating to at least two receive (Rx) port groups or the number of Rx port groups of the wireless device, and reporting or transmitting the UE capability report to a network node.

[0008] According to another aspect of the embodiments herein, a method is provided, performed by a network node, for receiving channel state information (CSI) reports from a wireless device comprising at least two groups of receive (Rx) ports, wherein the Rx port groups include one or more antenna ports for wireless reception at the wireless device. The method includes: Configuration for sending Channel State Information (CSI) reports to wireless devices. To enable wireless devices to: One or more CSIs are determined based on the configuration used for CSI reporting, wherein each of the one or more CSIs is associated with an Rx port group in the at least two Rx port groups. Generate a CSI report that includes one or more of the CSIs, and Uplink control information (UCI), including CSI reports, is received from the wireless device via the uplink (UL) channel.

[0009] According to another aspect of the embodiments herein, a method is provided, performed by a network node, for receiving a UE capability report from a wireless device in a wireless communication system. The method includes receiving the UE capability report from the wireless device, wherein the UE capability report includes information relating to at least two receive (Rx) port groups or the number of Rx port groups of the wireless device.

[0010] According to another aspect of the embodiments herein, a wireless device is provided, including a processor and a memory containing instructions executable by the processor, thereby enabling the wireless device to perform any of the embodiments presented in connection with the operation or method steps of the wireless device.

[0011] According to another aspect of the embodiments herein, a network node is provided, including a processor and a memory containing instructions executable by the processor, thereby enabling the network node to perform any of the embodiments relating to the actions or method steps of the network node presented in the specific embodiments.

[0012] A computer program is also provided, including instructions that, when executed on at least one processor of a wireless device, cause the at least one processor to perform the actions or method steps presented herein.

[0013] A computer program is also provided, including instructions that, when executed on at least one processor of a network node, cause the at least one processor to perform the actions or method steps presented herein.

[0014] A carrier comprising a computer program as presented in various embodiments is also provided, wherein the carrier is one of a computer-readable storage medium, an electrical signal, an optical signal, or a radio signal.

[0015] In the embodiments described in this disclosure, various methods are provided for supporting wireless devices having multiple sets of Rx port groups, each Rx port group including one or more antenna ports, and each group being capable of coherent reception. Dividing the receive ports at the wireless device into Rx port groups is to enable incoherent / independent reception on different port groups. Some technical advantages of the embodiments in this disclosure are described below.

[0016] The first advantage is that it enables the network to obtain CSIs for different Rx port groups at a radio device based on reports from the device regarding its ability to support a certain number of Rx port groups, or any other relevant / related information. Since each port group is "independently" coherent, obtaining CSIs for each of them is necessary. The second advantage is that it enables the network to obtain CSIs based on the different sets of Rx port groups at the radio device used for different types of scheduling—scheduling reception simultaneously at multiple Rx port groups or scheduling reception at only one of the Rx port groups at the radio device. The interference assumptions used in CSI calculation determine the types of operations that can be scheduled by the network. Furthermore, the network has flexibility in terms of the number and type of CSIs required for scheduling the UE. This network configuration enables CSI reporting, which can obtain CSIs for simultaneous reception at multiple Rx port groups and / or CSIs for operation at only one of the Rx port groups at the radio device, where the selection decision depends on either the network or the radio device. This flexibility enables various use cases for radio device type and network scheduling.

[0017] By utilizing CSI acquired for various scheduling scenarios, the various embodiments presented in this disclosure can split DL reception based on the scheduled codewords, DMRS CDM groups, and schedule DCI in different Rx port groups. This enables reception at the radio device regardless of whether the network explicitly indicates which Rx port groups must be used for reception at the radio device. The radio device can determine the Rx port groups to operate according to communication specification rules based on its own implementation, thus providing implementation flexibility. The above method is based on UE capability reporting, where information related to Rx port groups or some other information from capabilities can be used by the network to infer the number of Rx port groups used at the UE. This disclosure provides various reporting possibilities, including the reuse / reinterpretation of new parameters and old parameters, which can help reduce communication specification work, network implementation, and UE capability reporting overhead.

[0018] Further advantages of the embodiments described herein are provided in the detailed description of this disclosure. Attached Figure Description

[0019] Embodiments of the invention will now be described in more detail with reference to the accompanying drawings, in which: Figure 1 A schematic diagram of a wireless communication system is shown, and the embodiments described herein can be applied to this wireless communication system.

[0020] Figure 2 A block model of MIMO DL transmission using codebook-based precoding is shown according to LTE version 8.

[0021] Figure 3This is a block diagram depicting a wireless device (e.g., a UE or an IoT device) according to exemplary embodiments herein.

[0022] Figure 4 This is a block diagram depicting a network node (e.g., a gNB) according to exemplary embodiments of this document.

[0023] Figure 5 A flowchart illustrating a method performed by a wireless device (e.g., a UE or an IoT device) according to some embodiments herein is shown.

[0024] Figure 6 A flowchart illustrating a method performed by a wireless device (e.g., a UE or an IoT device) according to some embodiments herein is shown.

[0025] Figure 7 A flowchart illustrating a method performed by a wireless device (e.g., a UE or an IoT device) according to some embodiments herein is shown.

[0026] Figure 8 A flowchart of a method performed by a network node according to some embodiments herein is shown.

[0027] Figure 9 A flowchart of a method performed by a network node according to some embodiments herein is shown.

[0028] Figure 10 A flowchart of a method performed by a network node according to some embodiments herein is shown. Detailed Implementation

[0029] Exemplary embodiments are described in detail below in several scenarios with reference to the accompanying drawings, so as to make it easier to understand the solutions described herein.

[0030] Figure 1 A simplified schematic diagram of an example wireless communication network 100 is shown, which includes a core network (CN) 110 and a radio access network (RAN) 120. The RAN 120 is shown to include multiple network nodes or radio base stations, referred to as gNBs in 5G. Three radio base stations are depicted as gNB1, gNB2, and gNB3. Each gNB serves an area called a coverage area or cell. Figure 1Three cells, 121, 122, and 123, are shown, each served by its own gNB, gNB1, gNB2, and gNB3. It should be noted that network 100 may include any number of cells and gNBs. A wireless base station or network node serves users within a cell. In 4G or LTE, a wireless base station is called an eNB; in 3G or UMTS, it is called an eNodeB; and in other radio access technologies, it is called a BS. Users or user equipment (UE) can be wireless or mobile terminal devices or fixed communication devices. Mobile terminal devices or UEs can also be IoT devices, MTC devices, etc. IoT devices may include wireless sensors, software, actuators, and computer equipment. They can be embedded in mobile devices, motor vehicles, industrial equipment, environmental sensors, medical devices, aircraft, etc., and provide network connectivity that enables these devices to collect and exchange data on existing network infrastructure.

[0031] Return to reference Figure 1 The diagram illustrates that each cell includes UEs and IoT devices. In cell 121, gNB1 serves UE1121A, UE2 121B, and IoT device 121C. Similarly, in cell 122, gNB2 serves UE3 122A, UE4 122B, and IoT device 122C, and in cell 123, gNB3 serves UE5 123A, UE6 123B, and IoT device 123C. Network 100 may include any number of UEs and IoT devices or any other type of device. Devices communicate with the serving gNB in ​​the uplink, and the gNB communicates with the device in the downlink. The corresponding base stations gNB1 to gNB3 can be connected to CN 120, for example, via the S1 interface, via corresponding backhaul links 111, 121D, 122D, and 123D, where the backhaul links are in... Figure 1 The diagram illustrates the core network 120 by arrows pointing towards it. The core network 120 can connect to one or more external networks, such as the Internet. gNBs can connect to each other via the S1, X2, or XN interfaces in 5G, through corresponding interface links 121E, 122E, and 123E, which are depicted in the diagram by arrows pointing towards the gNBs.

[0032] For data transmission, a physical resource grid can be used. A physical resource grid can include a set of resource elements (REs) to which various physical channels and physical signals are mapped. For example, physical channels can include physical downlink, uplink, and / or sidelink shared channels (PDSCH, PUSCH, PSSCH) carrying user-specific data (also known as downlink, uplink, or sidelink (SL) payload data); physical broadcast channels (PBCH) carrying, for example, Master Information Blocks (MIBs) and System Information Blocks (SIBs); and physical downlink, uplink, and / or sidelink control channels (PDCCH, PUCCH, PSCCH) carrying, for example, Downlink Control Information (DCI), Uplink Control Information (UCI), or Sidelink Control Information (SCI). For uplink, physical channels can also include physical random access channels (PRACH or RACH) used by the UE to access the network after the UE is synchronized and obtains the MIB and SIB. Physical signals can include reference signals (RS), synchronization signals (SS), etc. A resource grid can include frames or radio frames with a specific duration (e.g., 10 milliseconds) in the time domain and a given bandwidth in the frequency domain. Radio frames can have a specific number of subframes of a predetermined length, such as two subframes of 1 millisecond in length. Depending on the cyclic prefix (CP) length, each subframe can include two time slots containing multiple OFDM symbols. In 5G, each time slot consists of either 14 or 12 OFDM symbols based on the regular CP and extended CP, respectively. For example, frames can also consist of a smaller number of OFDM symbols when utilizing a shortened transmission time interval (TTI) or a mini-time slot / non-time slot-based frame structure that includes only a few OFDM symbols. 5G NR supports time slot aggregation, allowing data transmission to be scheduled across one or more time slots. The time slot format indicator informs the UE whether the OFDM symbols are downlink, uplink, or flexible.

[0033] Wireless communication network systems can be any single-carrier or multi-carrier system using frequency division multiplexing, such as orthogonal frequency division multiplexing (OFDM) systems, orthogonal frequency division multiple access (OFDMA) systems, or any other signal based on discrete Fourier transform (DFT) with or without CP, such as DFT spread-spectrum OFDM (DFT-s-OFDM). Other waveforms can also be used, such as non-orthogonal waveforms for multiple access, such as filter bank multicarrier (FBMC), generalized frequency division multiplexing (GFDM), or universal filtered multicarrier (UFMC). Wireless communication systems can operate, for example, according to LTE-Advanced Pro standards, 5G or NR (New Radio) standards, or any other standard using any of the aforementioned waveforms.

[0034] Figure 1The wireless communication network system described herein can be a heterogeneous network with two different coverage networks, a macro cell network (each macro cell includes macro base stations, such as base stations gNB1 to gNB3), and a small cell base station network. Figure 1 (Not shown in the text), such as femtocells or picocells. In addition to the wireless networks mentioned above, there are also non-terrestrial wireless communication networks, including satellite transceivers and / or airborne transceivers such as unmanned aerial vehicle systems. Non-terrestrial wireless communication networks or systems can be referenced in the above text. Figure 1 The ground systems described above operate in a similar manner, for example, according to the LTE-advanced pro standard or the 5G or NR standard.

[0035] In such Figure 1 The schematic depiction in the diagram illustrates a wireless communication network system in which multi-antenna techniques, such as those used in LTE, NR, or any other communication system, can be employed to improve user data rates, link reliability, cell coverage, and network capacity. To support multi-stream or multi-layer transmission, linear precoding is used at the physical layer of the communication system. Linear precoding is performed by a precoding matrix that maps the data layer to antenna ports. Precoding can be viewed as a generalization of beamforming, a technique that spatially directs or focuses data transmission toward a desired receiver. Channel state information (CSI) is used to determine the precoding matrix to be used at the gNB to map data to transmit antenna ports.

[0036] In wireless communication network systems as described above (such as LTE or New Radio (5G)), various physical channels are defined for the communication of data payloads and control information. In addition, various reference signals are designed for purposes such as link adaptation and management, demodulation, frame synchronization, cell search, and phase tracking. A gNodeB (gNB) or eNodeB (eNB) (which can also be a base station) transmits data to one or more users in the downlink. User equipment (UE) or mobile terminals transmit data to one or more base stations in the uplink. In the sidelink, communication may involve two or more user equipments. Data payloads are transmitted via the Physical Downlink Shared Channel (PDSCH) in the downlink (DL) of the wireless network, the Physical Uplink Shared Channel (PUSCH) in the uplink (UL), and the Physical Sidelink Shared Channel (PSSCH) in the sidelink (SL). Control information is typically transmitted via the Physical Downlink Control Channel (PDCCH) or Enhanced PDCCH (ePDCCH) in certain LTE versions of the downlink (DL) of the wireless network, the Physical Uplink Control Channel (PUCCH) in the uplink (UL), and the Physical Sidelink Control Channel (PSCCH) in the sidelink (SL).

[0037] The Physical Broadcast Channel (PBCH) and Synchronization Signal (SS) are transmitted together as an SS / PBCH block in the downlink to aid in cell search and downlink synchronization. The SS / PBCH block can also be called a Synchronization Signal Block (SSB). The Physical Sidecast Channel (PSBCH) in the sidelink is structurally and functionally similar to the PBCH. The Physical Random Access Channel (PRACH) in the uplink is characterized by a PRACH preamble and is used for uplink synchronization.

[0038] PDSCH, PDCCH, PBCH, PUSCH, PUCCH, PSSCH, PSCCH, and PSBCH are equipped with a demodulation reference signal (DMRS) for coherent demodulation of the channel. During a given instance of channel transmission, the number of DMRS antenna ports equals the number of layers being transmitted. The channel transmission layer can be described using the DMRS ports associated with it. In LTE, the common reference signal (CRS) can be used for DL ​​demodulation, channel estimation, etc.

[0039] Compared to CRS, Channel State Information Reference Signal (CSI-RS) is transmitted at a lower density in both the time and frequency domains and plays a crucial role in initiating, maintaining, adapting, and restoring communication links. Here are some uses of CSI-RS in wireless networks: estimating DL channels to adapt link parameters such as spatial precoders, modulation orders, and coding schemes; measuring and reporting suitable spatial beams for communication; tracking various parameters required for communication, such as average delay, delay spread, Doppler shift / spread, DL path loss, etc.; and restoring links after a "failure." Several CSI-RS reporting mechanisms are used for signal precoding at the gNB, such as non-precoded CSI-RS and beamforming CSI-RS reporting. For non-precoded CSI-RS, a one-to-one mapping between CSI-RS ports and transceiver units (TXRUs) of the antenna array at the gNB is utilized. Therefore, non-precoded CSI-RS provides cell-wide coverage where different CSI-RS ports have the same beam direction and beamwidth. For UE-specific or non-UE-specific CSI-RS with beamforming / precoding, beamforming operations are applied on a single antenna port or multiple antenna ports to form several high-gain narrow beams in different directions, thus without cell-wide coverage.

[0040] In wireless communication network systems employing Time Division Duplex (TDD), Channel Indicator (CSI) is available at the base station (gNB) due to channel reciprocity. However, when using Frequency Division Duplex (FDD), due to the lack of channel reciprocity, the channel is estimated at the UE, and the estimation results are fed back to the gNB. Figure 2 A block model for multiple-input multiple-output (MIMO) DL transmission using codebook-based precoding is shown according to LTE Release 8. Figure 2 The diagram schematically illustrates a base station 200 (gNB), a user equipment (UE) 202, and a channel 204, such as a wireless channel for wireless data communication between the base station 200 and the user equipment 202. The base station includes an antenna array ANT having multiple antennas or antenna elements. T The precoder 206 receives data vector 208 and a precoding matrix F from codebook 210. Channel 204 can be described by channel tensor / matrix 212. User equipment 202 uses an antenna or an antenna array ANT with multiple antennas or antenna elements. R Receive data vector 214. Provide feedback channel 216 between user equipment 202 and base station 200 for transmitting feedback information. Previous 3GPP versions up to version 15 support CSI estimation at the UE using multiple downlink reference symbols (such as CSI-RS).

[0041] In FDD systems (up to version 15), the channel estimated at the UE is implicitly reported to the gNB. The CSI report sent by the UE via the feedback channel includes the Rank Index (RI), Precoding Matrix Index (PMI), and Channel Quality Indicator (CQI) (as well as the CRI from version 13), which determines the precoding matrix and the modulation order and coding scheme (MCS) of the symbols to be transmitted at the gNB. The PMI and RI are used based on a predefined set of matrices, also known as a codebook. The precoding matrix is ​​determined. For example, according to LTE, the codebook can be a lookup table, where each entry contains a matrix, and the PMI and RI from the UE determine which row and column of the table to obtain the precoding matrix to use. For devices equipped with... A total of dual-polarized antennas (total) A one-dimensional uniform linear array (ULA) with one antenna or antenna port, or equipped with Dual-polarized antenna at location (total) The gNB, precoder, and codebook of a two-dimensional uniform planar array (UPA) (with one antenna or antenna port) are designed up to version 15. ULA allows control of radio waves only in the horizontal (azimuth) direction, thus enabling azimuth-only beamforming at the gNB, while UPA supports transmit beamforming in both the vertical (height) and horizontal (azimuth) directions, also known as full-dimensional (FD) MIMO. For example, in the case of massive antenna arrays such as FD-MIMO, the codebook can be a set of beamforming weights that use the array response vector of the array to form spatially separated electromagnetic transmit / receive beams. The array beamforming weights (also known as the array steering vector) are the amplitude gain and phase adjustment applied to the signal fed to (or received from) the antenna to transmit (or receive) radiation in (or from) a specific direction. The components of the precoding matrix are obtained from the codebook, and PMI and RI are used to read the codebook and obtain the precoder. When ULA or UPA is used for signal transmission, the array steering vector can be described by the columns of a two-dimensional discrete Fourier transform (DFT) matrix.

[0042] The precoding matrix used in Type I, Type I multi-panel, and Type II CSI reporting schemes in the 3GPP NR standard consists of a two-level structure (i.e., a two-component codebook). Definition. The first component, or so-called first-level pre-encoder or matrix. Used to select multiple beam vectors from a Discrete Fourier Transform (DFT) basis matrix (also known as a spatial codebook). Additionally, the first-level pre-encoder... Corresponding to the broadband matrix, it contains multiple spatial beamforming vectors (so-called spatial beams) selected from the DFT codebook matrices for the two polarization directions used in the antenna array. A second component, or so-called second-level pre-encoder, is used to combine the selected beam vectors. This refers to the second-level pre-encoder or matrix. Corresponding to the selection / combination / common phase matrix, to select / combination / common phase The beam defined in [the context]. For rank... transmission, Include vectors, where Represents the transmission rank, where entries for each vector are selected to combine single or multiple beams within each polarization direction. For the matrix... and The selection of the matrix is ​​made by the UE based on reference signals such as CSI-RS and its understanding of channel conditions. The selected matrix is ​​indicated in the CSI report in the form of RI (RI represents the rank of the precoding matrix) and PMI, and is used at the gNB to update the multi-user precoder for the next transmission time interval.

[0043] When used alone, the term "higher layer" refers to any communication layer above the physical layer in the protocol stack. When used in conjunction with a specific layer, it refers to any communication layer above that layer in the protocol stack.

[0044] The terms serving cell and carrier component (CC) are used interchangeably in this disclosure, referring to the serving cell configured for the UE and typically a single physical carrier centered at a specific carrier frequency. The cell size and beamforming reference signal may vary depending on the frequency of the component carrier / serving cell.

[0045] The terms "PDxCH" or "PDXCH" can indicate the Physical Downlink Shared Channel (PDSCH) or the Physical Downlink Control Channel (PDCCH), while "PUxCH" or "PUXCH" can indicate the Physical Uplink Shared Channel (PUSCH) or the Physical Uplink Control Channel (PUCCH). The terms "PxxCH" or "PXXCH" can represent PDSCH, PDCCH, PUSCH, PRACH, PBCH, PSSCH, or PSCCH.

[0046] The phrase “fixed / prescribed / provided in the communication specification” in this disclosure may refer to the following: one or more rules and / or methods and / or details regarding certain parameters provided in the standard communication specification that the UE and / or any network node should follow or implement.

[0047] The term “configuration” may refer to the following: one or more rules and / or methods and / or details about one or more parameters provided by a standard communication specification that a wireless device (e.g., a UE) should follow or implement, provided to the wireless device by one or more network entities, such as via higher-layer signaling, such as Radio Resource Control (RRC) signaling.

[0048] In some embodiments, a wireless device (e.g., a user equipment (UE)) is configured to receive one or more Transport Configuration Indication States (TCI states) from a network node. In another embodiment, the UE is configured with one or more TCI states via known rules (e.g., rules described in the NR standard). The TCI state configuration includes at least one of the following: 1. One or more reference signals and one or more quasi-co-location (QCL) assumptions or setup types for each reference signal. 2. One or more reference signals (RS) to be used as path loss references (the path loss estimation results calculated using the RS are used to calculate the Tx power of the UL channel or RS). 3. One or more transmit power settings.

[0049] Depending on the indicated settings, the TCI state is a DL TCI state, a UL TCI state, or a combined TCI state. If the configuration includes receive settings—one or more reference signals and one or more QCL assumptions or setting types for each reference signal—the TCI state is a DL TCI state. The DL TCI state does not include the second and third settings described above. The settings in the DL TCI state are applied by the UE to the DL channel or RS (the settings in the DL TCI state are applied to the reception of the DL channel or RS). If the configuration includes transmit settings, i.e., the second and / or third settings described above, the TCI state is a UL TCI state. The UL TCI state does not include the first setting. The settings in the UL TCI state are applied by the UE to the UL channel or RS (the settings in the UL TCI state are applied to the transmission of the UL channel or RS). If the configuration includes the first setting and the second and / or third settings, the TCI state is a combined TCI state. The settings in the combined TCI state can be applied by the UE to both the UL and DL channels / RS.

[0050] In some embodiments, the UE is configured to apply one or more DL or joint TCI states (i.e., the reception settings provided in the one or more TCI states) to the reception of DL reference signals or DL ​​channels (e.g., physical downlink shared channel (PDSCH) or physical downlink control channel (PDCCH)).

[0051] The phrase UE “apply TCI state to DL reference signal or channel” has the same meaning as “apply QCL assumptions or settings provided in TCI state to the reception of said DL reference signal or channel”.

[0052] If the large-scale characteristics of a channel transmitting symbols on one antenna port can be inferred from the characteristics of a channel transmitting symbols on another antenna port, then the two antenna ports are said to be quasi-co-located (QCL-ed). Large-scale characteristics include one or more of the following: delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial Rx parameter.

[0053] QCL is assumed to be performed / applied between ports of two different reference signals or between a port of one reference signal and a demodulation reference signal port of a physical channel (such as a physical downlink control channel or a physical downlink shared channel). The UE can infer one or more large-scale channel characteristics of the channel or reference signal based on the reference signal(s) that provide the QCL (i.e., the source RS used for the QCL).

[0054] The phrase “the DL / SL channel or RS’A’ (or its corresponding port) and RS’b’ (or its corresponding port) are quasi-co-located in terms of Doppler shift and delay spread, or are assumed to be quasi-co-located” means that the parameters (or channel parameters) used for receiving, demodulating, decoding, or processing the DL / SL channel or RS’A’ (the port) can be determined, inferred, or derived from RS’b’ (the channel corresponding to RS’b’ / the channel corresponding to the port of RS’b’). Here, RS’b’ (the port) is referred to as the QCL source or source RS, which provides a reference for measuring the channel parameters, or simply parameters. The DL / SL channel (the port) or RS’A’ is the target.

[0055] The current NR standard defines four different QCL types to indicate with respect to which parameters the QCL assumptions should be performed / applied: Type A: {Doppler frequency shift, Doppler spread, average delay, delay spread} Type B: {Doppler frequency shift, Doppler spread} Type C: {Doppler frequency shift, average delay} Type D: {Spatial Rx parameter} The fact that a channel or RS'X' is quasi-co-located with DL RS resource'b relative to QCL type "A" or is assumed to be quasi-co-located means that the Doppler shift, Doppler spread, average delay, and delay spread of the channel (or the DMRS port of the channel) or RS'X can be obtained or derived from DL RS resource'b (the channel corresponding to DL RS resource'b).

[0056] If a channel or RS'X' and DL RS resource'b are quasi-co-located or assumed to be quasi-co-located relative to QCL type "D", it means that the channel (or the DMRS port of the channel) or RS'X' and DL RS resource'b can be received by the UE using the same spatial reception filter. QCL type "D" is generally applicable to UEs capable of receiving (Rx) beamforming (e.g., UEs implementing hybrid or analog beamforming networks).

[0057] The TCI state includes one or more CSI-RS or SSB resources that serve as source RSs, and QCL assumptions for each source RS. RSs in the TCI state are typically RSs that the UE has previously measured, allowing it to use them as references to receive target signals or target channels (ports). RSs provided in the TCI state and QCL assumption types can be referred to as source RSs for QCL.

[0058] TCI status includes at least one of the following: RS'r1' with QCL type "X1", and / or RS'r2' with QCL type "X2", Where "X1" and "X2" can be one of "A", "B", "C", or "D". Applying the TCI state to the DL channel or RS means that the UE executes the QCL assumptions provided in the TCI state, that is, If RS'r1' with QCL type "X1" is provided in the TCI state, the UE assumes that the DL channel or RS and RS'r1' are quasi-co-located with respect to QCL type "X1". If RS'r2' with QCL type "X2" is provided in the TCI state, the UE assumes that the DL channel or RS and RS'r2' are quasi-co-located relative to QCL type "X2". In some embodiments, RS'r1' and 'r2' can be CSI-RS (e.g., NZP CSI-RS resource) or SSB.

[0059] Similarly, the QCL assumption applied to / executed on a DL channel or RS implies the following assumption: the DL channel or RS is quasi-co-located with the indicated / specified RS'r' relative to the indicated / specified / predetermined QCL type "X" (where "X" can be one of "A", "B", "C" or "D").

[0060] This can also be referred to as performing QCL association. In the example above, RS'r' can be a CSI-RS (e.g., an NZP CSI-RS resource) or an SSB.

[0061] The Sounding Reference Signal (SRS) is a UE-specific reference signal transmitted by the UE in the uplink and is primarily used by the gNB to estimate UL Channel State Information (CSI) or UL beam management. SRS transmissions are performed by the UE on a specific set of frequency domain resources allocated to the UE by the network. Based on the SRS transmission, the gNB estimates the CSI on the received SRS signal. The obtained CSI is used for various purposes, including link adaptation in the uplink and downlink CSI acquisition. When assuming reciprocity between uplink and downlink channels, the downlink CSI is obtained based on the estimated uplink CSI. Furthermore, SRS transmissions are used for uplink beam management in 5G NR systems operating within Frequency Range 2 (FR2).

[0062] One or more SRS resource sets can be configured to the UE via a higher layer (e.g., RRC), where each resource set includes one or more resources. Temporal behavior (periodic, semi-persistent, and aperiodic) and SRS use cases / usages (codebook, non-codebook, antenna switching, beam management, positioning) are specified at the resource set level. Upon receiving the SRS configuration via a higher layer (e.g., RRC), the UE begins transmitting periodic SRS. For semi-persistent SRS, transmission is performed after explicit MAC-CE activation of the SRS. For aperiodic SRS, transmission is performed after DCI triggers the SRS. Additionally, in beam management, codebook-based, non-codebook-based, and antenna switching use cases, SRS-Config The parameters in "" usage "Specify the specific use case for each resource set. Multiple parameters are configured for resource mapping via SRS higher-level configuration at the SRS resource level, such as the number of consecutive transmitted symbols in each time slot, the start symbol, the repetition factor, and the number of SRS ports. Additionally, frequency domain resources are allocated to SRS resources via a set of parameters (such as maximum probe bandwidth, start PRB, frequency hopping bandwidth, probe bandwidth, etc.), which can be indicated via PHY layer and / or higher-level configuration / indication (e.g., MAC-CE / RRC)."

[0063] Motivation for Invention This disclosure presents methods and apparatus for operating multiple Rx port groups in a wireless device, such as a UE or IoT device. The wireless device may be equipped with multiple receive antenna ports. These receive antenna ports are divided into multiple sets or groups, hereinafter referred to as Rx port groups. Each Rx port group may include one or more receive antenna ports, wherein ports within the group may be capable of coherent reception at the wireless device, or ports within the group may include a common Rx / RF processing chain and / or clock / oscillator. Different aspects of the operation of a wireless device having multiple such Rx port groups are discussed below: CSI reporting scheme for wireless devices equipped with multiple Rx port groups Indication of the Rx port group used by the wireless device for DL ​​reception. A procedure for individual and simultaneous reception on different Rx port groups. Interference assumptions between Rx port groups used by wireless devices when calculating CSI for CSI reporting.

[0064] CSI reporting for wireless devices equipped with multiple Rx port groups The following provides procedures for wireless devices (UEs) and base stations to implement CSI reporting and DL reception for wireless devices equipped with multiple Rx port groups.

[0065] In some embodiments, a method performed by a wireless device is provided. The method includes: Receive configuration from network nodes for Channel State Information (CSI) reports. The antenna ports used for receiving at the wireless device are divided into at least two receive (Rx) port groups, wherein each Rx port group includes one or more antenna ports. One or more CSIs are determined based on the configuration used for CSI reporting, wherein each of the one or more CSIs is associated with an Rx port group. Generate a CSI report that includes one or more of the CSIs, and Report to network nodes or send CSI reports.

[0066] In some embodiments, a method performed by a wireless device is provided. The method includes: Receive configuration from network nodes for Channel State Information (CSI) reports. One or more CSIs are determined based on the configuration used for CSI reporting, where, Each of the one or more CSIs is associated with a receive (Rx) port group, and The Rx port group at the wireless device includes a subset of antenna ports used for receiving at the wireless device. Generate a CSI report that includes one or more of the CSIs, and Report to network nodes or send CSI reports.

[0067] In some embodiments, the method performed by the wireless device includes sending a CSI report to a network node via a physical uplink shared channel or a physical uplink control channel.

[0068] In some embodiments, the wireless device includes at least two Rx port groups, wherein each Rx port group includes one or more antenna ports for receiving data at the wireless device. The receiving data at the wireless device may be wireless receiving.

[0069] In some embodiments, the antenna ports of the wireless device for receiving are segmented or divided into at least two groups of receive (Rx) ports, wherein each (Rx) port group is associated with or includes one or more (Rx) antenna ports.

[0070] In some alternatives, the antenna port used for reception at the wireless device is associated with only one Rx port group.

[0071] Wireless devices can use the antenna port to receive downlink and sidelink transmissions.

[0072] In some examples, the total number of Rx antenna ports of the wireless device It is an even number, and the number of Rx port groups at the wireless device is 2, where each Rx port group includes Number of antenna ports. For example, having a total of One or A wireless device with one antenna port for receiving will include two Rx port groups, where each Rx port group includes either three or four antenna ports.

[0073] Rx port grouping based on UE capability parameters In the above method, the concept of Rx port groups is used for CSI reporting. This likely refers to explicitly revealing information about the antenna port layout and / or port groups at the wireless device to the gNB. This reporting and architecture-specific configuration can have the following consequences: Revealing the port layout information of wireless devices may infringe on UE privacy by disclosing their implementation details. Architecture-specific configuration specifications may lead to limited applicability across a variety of use cases.

[0074] Therefore, it may be recommended to enable the "masquerading" UE to report or export information based on the UE Rx port group from the existing UE capability report, which can help with gNB configuration or scheduling.

[0075] In some embodiments, the wireless device may be configured to report information about the Rx port group or the number of Rx port groups at the wireless device to the network node, for example, using a UE capability report. The indication of the number of Rx port groups in the UE capability report may also be indirect, i.e., the number of Rx port groups may be indicated by using other (e.g., existing) parameters in the NR specification.

[0076] In some embodiments, a method is provided performed by a wireless device or user equipment (UE), the wireless device including at least two receive (Rx) port groups, wherein the Rx port groups include one or more antenna ports for receiving at the wireless device. The method includes reporting information about the Rx port groups and / or the number of Rx port groups at the wireless device to a network node using a UE capability report.

[0077] In one example, the radio device can indicate in the UE capability report the maximum number of layers it supports for downlink transmissions (e.g., for PDSCH / DL transmissions). This value likely refers to wireless devices, including... One Rx port group. The values ​​can be the same or different. Each value can be associated with an Rx port group (a wireless device can be considered to include...). (One Rx port group), and can indicate the maximum number of layers supported by the Rx port group.

[0078] In the second example, the wireless device can indicate the requirement for [specific feature / component] in the UE capability report. Support for a set of SRS resources. This likely refers to the wireless device and... Each Rx port group is associated with or supports One Rx port group.

[0079] In the third example, the wireless device can indicate (at most) per SRS resource or per SRS resource set in the UE capability report. Support for one SRS port. This likely refers to the wireless device and... Each Rx port group is associated with or supports One Rx port group.

[0080] In the fourth example, the wireless device can indicate the maximum number of layers for uplink (UL) transmissions in the UE capability report. Support for individual values. This likely refers to wireless devices and... Each Rx port group is associated with or supports One Rx port group.

[0081] Note that in some examples... Each of these values ​​can indicate the maximum number of layers used for uplink (UL) transmission.

[0082] In some examples, Each of the values ​​is an integer and comes from 0, 1, 2 or 0, 1, 2, 3 or 0, 1, 2, 4 or 0, 1, 2 or 0, 1, 2, 3 or 1, 2, 3 or 1, 2, 4 or 0, 1, 2, 3, 4 or 1, 2, 3, 4.

[0083] In the example above, the wireless device reports information about multiple sets of downlink (DL) receive layers supported by the wireless device, or multiple sets of UL ports applicable to UL resource (RS) or UL transmission configurations. These parameters are used by the gNB in ​​the configuration and / or indication of DL / UL scheduling and UL reference signals. This reporting is used to interpret / infer the number of Rx port groups that the wireless device may include or support.

[0084] If the wireless device reports a port / layer corresponding to the UL resource / channel transmission... If a value is specified, then the wireless device can be considered to include... A Tx port group, which can also be converted in some cases. One Rx port group.

[0085] Associating configuration or scheduling with an index of UE capability parameters or UE capability values ​​can indirectly indicate to the Rx port group at the radio device.

[0086] In the above example The value can be... Provided in different UE capability parameters, or as a UE capability parameter The length vector is provided.

[0087] In some embodiments, the UE capabilities associated with the maximum number of layers, ports, resources, or resource sets are comprised of... A vector representation of values. Each value in the vector is associated with at least one configuration or scheduling or CSI and a group of Rx ports at the wireless device. For example, the configuration / scheduling resource / CSI is associated with... The association of the first value among these values ​​can indicate the association with the first Rx port group, and the configuration / scheduled resource / CSI with The association of the second value in the set can indicate the association with the second Rx port group at the wireless device, and so on.

[0088] In another example, the UE capability report includes There are parameters, among which, These parameters are associated with the maximum number of layers / ports / resources / resource sets. The configured / scheduled resources / CSI are related to... The association of the first parameter among the parameters can indicate the association with the first Rx port group, and the configured / scheduled resource / CSI with The association of the second parameter in the parameters can indicate the association with the second Rx port group at the wireless device, and so on.

[0089] In some embodiments, the method performed by the wireless device includes reporting to or sending at least one of the following to a network node: At least two values ​​or two parameters associated with the (maximum) number of layers (e.g., the number of layers for DL / UL transmission, the number of layers for PDSCH / PUSCH, etc.). At least two values ​​or two parameters corresponding to the (maximum) number of SRS ports, for example, in an SRS resource or in an SRS resource set. The minimum value for the (maximum) number of SRS resource sets is 2.

[0090] The reported values ​​or parameters can be part of the UE capability report. They can indicate the wireless device's support for the aforementioned configuration / indication.

[0091] In some cases, the values ​​of at least two UE capabilities or the values ​​of at least two parameters may be the same or different. The index or ID of the reported value / parameter is used here to identify the Rx port group at the radio device. Rx port groups may have the same or different configurations / capabilities.

[0092] In some embodiments, the UE reports information associated with one of the aforementioned UE capabilities. There are several parameters (number of layers, number of SRS ports, or number of SRS resource sets) – “Parameter 1”, ..., “Parameter G” – where each parameter includes a value. In some alternatives, the first parameter (“Parameter 1”) (or its value) corresponds to or is associated with the first index or index “1”, the second parameter (“Parameter 2”) (or its value) corresponds to or is associated with the second index or index “2”, and so on.

[0093] In some embodiments, the UE reports a parameter (value 1, ..., value G) associated with one of the aforementioned UE capabilities. Each value is a number of layers, the number of SRS ports, or the number of SRS resource sets. In some alternatives, the first value of the parameter (“value 1”) corresponds to or is associated with the first index or index “1”, the second value (“value 2”) corresponds to or is associated with the second index or index “2”, and so on.

[0094] A first UE capability parameter / value, or a UE capability parameter / value associated with a first index, can be associated with a first Rx port group; a second UE capability parameter / value, or a UE capability parameter / value associated with a second index, can be associated with a second Rx port group, and so on. In some cases, this understanding can be part of the UE implementation, and it is not necessary to specify the UE behavior for mapping such parameters / values ​​to Rx port groups.

[0095] In some embodiments, a method performed by a wireless device is provided, the method comprising: Receive configuration from network nodes for Channel State Information (CSI) reports. One or more CSIs are determined based on the configuration used for CSI reporting, wherein each of the one or more CSIs is associated with user equipment (UE) capability information. Generate a CSI report that includes one or more of the CSIs, and Report to network nodes or send CSI reports.

[0096] In some embodiments, the association between each of the one or more CSIs and UE capability information includes implicitly or explicitly associating each of the one or more CSIs with an index or indicator that indicates, maps, or points to UE capability values ​​and / or parameters.

[0097] The above method can be applied when there are at least two UE capability values ​​and / or parameters that can be indicated or mapped.

[0098] In this disclosure, the mapping or association with the index of the UE capability parameter or value may refer to the UE providing / sending in the UE capability report. A value or parameter, wherein, with respect to the Associated with one of the values ​​or parameters.

[0099] In some embodiments, the UE capability parameter / value is related to at least one of the following: (Maximum) number of layers (e.g., the number of layers used for DL / UL transmission, the number of layers used for PDSCH / PUSCH, etc.). Maximum number of SRS ports The maximum number of supported SRS resource sets must be at least 2.

[0100] In some embodiments, the association between the Rx port group or UE capability parameter / value (index) and the following is indicated / configured to the radio device via PHY layer signaling or higher layer signaling from the network node, and / or fixed in the NR specification: CSI, or CSI-RS resources or one or more ports of CSI-RS resources, or The codewords for PDSCH / PUSCH or PDSCH / PUSCH, or CDM group of DMRS ports of PDSCH / PUSCH.

[0101] In some embodiments, a method performed by a wireless device is provided, the method comprising: Receive configuration from network nodes for Channel State Information (CSI) reports. Based on the configuration used for CSI reporting, one or more CSIs are determined, wherein each of the one or more CSIs is implicitly or explicitly associated with an index or indicator that indicates, maps, or points to a value determined based on UE capability parameters. Generate a CSI report that includes one or more of the CSIs, and Report to network nodes or send CSI reports.

[0102] In some embodiments, the index or indicator takes a value based on the UE capability parameter. For example, the UE capability parameter may indicate / include The value, and the index or indicator can indicate or map to. One of the different values ​​or One of the different values.

[0103] In some embodiments, the method performed by the wireless device includes providing / transmitting parameters in the UE capability report relating to at least one of the following: The number of Rx port groups or Rx / RF processing chains at the wireless device. The (maximum) number of SRS resources or SRS resource sets. The number of PDSCH / PUSCH that can be scheduled in cases of partial / complete overlap in time and / or frequency. The number of possible values ​​of the index / indicator that CSI can associate with. The number of possible values ​​of the index / indicator that can be associated with the codeword of PDSCH / PUSCH. The number of possible values ​​of the index / indicator that the CDM group of the DMRS port of PDSCH / PUSCH can be associated with. The number of possible values ​​of the index / indicator that the DCI used to schedule PUSCH / PDSCH can be associated with.

[0104] In this disclosure, the mapping or association with Rx port groups (implicit mapping or association via rules in the communication specification or explicit mapping or association via network signaling through the PHY layer and / or higher layers) can refer to the wireless device providing / transmitting parameters associated with any of the foregoing in the UE capability report, which indicate The value, wherein the index or indicator used for the mapping / association points to or maps to One of the different values ​​or One of several distinct values. An association or mapping with the first Rx port group means a mapping / association with the first value or the first index (e.g., value / index '0'), and an association or mapping with the second Rx port group means a mapping / association with the second value or the second index (e.g., value / index '1'), and so on.

[0105] In this disclosure, configuration, provision, or inclusion of The radio device in the Rx port group can be referred to in the UE capability report. The radio device can provide / transmit any of the above UE capability parameters. The value of .

[0106] In this disclosure, the mapping or association with an index corresponding to a UE capability parameter or value can refer to the UE providing / sending instructions in the UE capability report. The value of the parameter, where the mapping or association is utilized One of the different values ​​or indices or It can be performed against one or more different values ​​or indices. For example, a mapping or association can be performed against one or more of the following values ​​or indices: or or .

[0107] In some embodiments, the method performed by the wireless device includes, for example, reporting to the network node using a UE capability report about transmit (Tx) ports or uplink antenna ports used for uplink transmission at the wireless device. The wireless device may include one or more Tx port groups, each Tx port group comprising zero or more antenna ports. The indication of the number of Tx port groups in the UE capability report may also be indirect. This refers to indicating the number of Tx port groups using other (e.g., existing) parameters in the NR specification.

[0108] In some embodiments, the wireless device and Each Tx port group is associated with or supports There are Tx port groups. There is a relationship between Rx port groups and Tx port groups. In some cases, there is a one-to-one relationship between Rx port groups and Tx port groups. This means that for every Rx port group, there is one Tx port group.

[0109] In some embodiments, the Tx port group can be connected with... One of the values ​​(indicated in the UE capability parameter in the UE capability report) or Each parameter (indicated in the UE capability report, each parameter includes a value) is associated.

[0110] In some examples, the wireless device can indicate the maximum number of layers used for uplink (UL) transmission in the UE capability report. Support for each value. Note that the stated... The value in the list can also be zero. This means that the wireless device does not have the corresponding Rx port group associated with the Tx port group.

[0111] In some examples, Each of the values ​​is an integer and comes from {0,1,2} or {0,1,2,3} or {0,1,2,4} or {0,1,2} or {0,1,2,3} or {1,2,3} or {1,2,4} or {0,1,2,3,4} or {1,2,3,4}.

[0112] CSI parameters and assumptions regarding Rx port group or UE capability parameters / values In some embodiments, the wireless device performs measurements on one or more CSI resources and determines the CSI associated with an Rx port group or UE capability parameter or value (index). The CSI resources for which the measurements are performed are configured or provided in the CSI report configuration received from the network node.

[0113] In some embodiments, the wireless device is configured to provide / transmit / include at least in the CSI report. The first CSI, of which the second CSI ( )and Each layer or transport layer is associated with a CSI, and each CSI is associated with an Rx port group or UE capability parameter or value (index). Let The total number of layers reported by each CSI is .

[0114] In some embodiments, the CSI is associated with an Rx port group or an index of a UE capability parameter / value and includes at least one of the following CSI quantities: Precoding Matrix Identifier (PMI), Rank Indicator (RI), and Channel Quality Indicator (CQI). In some examples, the PMI is based on an older Type I or Type II codebook (e.g., version 15 Type I codebook, version 15 or version 16 Type II codebook, version 16 Type II Port Selection Codebook, version 17 Type II Port Selection Codebook, version 18 CJT Type II Codebook, version 18 CJT Type II Port Selection Codebook, version 18 Doppler Type II Codebook, or version 18 Doppler Type II Port Selection Codebook) or a new codebook.

[0115] In some embodiments, the CSI includes at least the PMI, and the PMI (or simply CSI below) is associated with the number of layers (or rank) of the precoder or the number of transport layers of the corresponding downlink transmission.

[0116] In some embodiments, the CSI includes at least a value corresponding to the broadband CQI or the subband CQI.

[0117] In some embodiments, the CSI includes at least one indication that indicates the rank or number of transport layers, or the number of layers of the precoder indicated by the PMI in the CSI.

[0118] In some embodiments, the wireless device is configured to determine one or more CSIs based on a CSI reporting configuration, wherein the CSI is associated with the following: A value or parameter associated with the number of layers (e.g., maximum number of layers), wherein the value or parameter is a UE capability, and / or A value or parameter associated with the number of SRS ports or the number of SRS resources / resource sets of SRS resources, wherein the value or parameter is a UE capability.

[0119] In some embodiments, the CSI report includes one or more CSIs, wherein the CSI report includes an indication or index that indicates or maps to the Rx port group or UE capability parameter / value associated with the CSI in the CSI report. In some examples, an indication / index exists in each CSI.

[0120] In some instances, the indicator / index is a bit field. The size of a bit field can be... ,in, This equals the number of Rx port groups at the wireless device (or a value set to the aforementioned UE capability parameters) or the number of (one of the aforementioned) UE capability parameters / values ​​provided / transmitted by the UE. The value of the bit field indicates, maps, or points to an Rx port group, or it maps to a UE capability parameter / value. For example, a bit field of size 'b' represents... The value can indicate / map / point to the first The first Rx port group or the first Each UE capability parameter / value. In some other examples, it is represented by a bit field of size 'b'. The value can indicate / map / point to the index. or The Rx port group or UE capability parameters / values.

[0121] In some of the alternatives, The value is equal to the above. The value of .

[0122] In the case of two Rx port groups at the wireless device, the CSI contains a field of size one bit. When the bit field corresponding to the CSI is '0', the CSI is associated with the first Rx port group, and when the bit field corresponding to the CSI is '1', the CSI is associated with the second Rx port group.

[0123] When a UE reports two parameters / values ​​related to its UE capabilities (i.e., the maximum number of tier / port / RS resources or resource sets that can be configured / used / indicated in the UL or DL), the CSI includes a field of size equal to one bit. When the bit field corresponding to the CSI is '0', the CSI is associated with the first UE capability parameter / value, and when the bit field corresponding to the CSI is '1', the CSI is associated with the second UE capability parameter / value.

[0124] In some embodiments, the wireless device is configured to provide at least one index / indicator in the CSI report, which indicates or maps to / points to. A value or parameter associated with the number of layers (e.g., maximum number of layers), wherein the value or parameter is a UE capability, or A value or parameter associated with the number of ports or the number of SRS resources / resource sets, wherein the value or parameter is a UE capability.

[0125] Single CSI reporting In some embodiments, the wireless device is configured to determine and provide / transmit a CSI report including a single CSI to a network node, wherein the CSI is associated with at least two Rx port groups of the wireless device.

[0126] In some embodiments, the wireless device is configured to determine and provide / transmit a CSI report including a single CSI to the network node, wherein the CSI is associated with one of the at least two UE capability parameters / values.

[0127] In some embodiments, the wireless device is configured to determine and provide / transmit a CSI report including a single CSI to the network node, wherein the CSI is associated with one of the at least two indices corresponding to the UE capability parameters / values.

[0128] In some embodiments, in order to calculate CSI, the UE assumes that there is no interference from the transport layer associated with other Rx port groups or UE capability parameters / values ​​(one or more indices of UE capability parameters / values / corresponding to one or more indices of UE capability parameters / values) (i.e., assumes no interference), wherein the other Rx port groups or other UE capability parameters / values ​​are different from the Rx port groups or UE capability parameters / values ​​associated with the CSI.

[0129] In some examples, the wireless device determines the CSI, UE capability parameter / value, or index corresponding to the UE capability parameter for each of at least two Rx port groups, selects a single CSI for a specific performance measurement or metric (e.g., a performance measurement or metric for achieving higher rates, RSRP, or SINR), and includes the selected CSI in the CSI report.

[0130] Using the method described above, the wireless device reports a CSI for scheduling DL transmissions at the network node, so that it can be received by the wireless device using only one Rx port group from the Rx port group. Below, a method for reporting multiple CSIs is provided, wherein the multiple CSIs implement the following use cases: DL reception is performed using multiple Rx port groups at the wireless device, where the transport layer is independently scheduled to the Rx port group. DL reception is performed using a single Rx port group at the wireless device, while there is no interference scheduling on the other port group.

[0131] Two CSI reports In some embodiments, the wireless device is configured to determine and provide / transmit a CSI report including at least two CSIs, wherein each CSI is associated with an Rx port group or a UE capability parameter / value (an index of the UE capability parameter / value or an index corresponding to the UE capability parameter / value).

[0132] In some embodiments, the wireless device is configured to determine and provide / send a CSI report to a network node, wherein the CSI report includes at least two CSIs, wherein a first CSI is associated with a first Rx port group or a first UE capability parameter / value (a first index of the first UE capability parameter / value / corresponding to the first index of the first UE capability parameter / value) at the wireless device, and a second CSI is associated with a second Rx port group or a second UE capability parameter / value (a second index of the second UE capability parameter / value / corresponding to the second index of the second UE capability parameter / value) at the wireless device, and so on.

[0133] In some embodiments, the wireless device is configured to determine and provide / transmit a CSI report comprising at least two CSIs, wherein the first CSI is... Each transport layer is associated with it, and the second CSI is associated with it. Each transport layer is associated with another, and so on.

[0134] In some examples, each CSI is associated with a different Rx port group or a different UE capability parameter / value (index).

[0135] In some embodiments, when the first When performing a CSI, the wireless device assumes there is no interference from the transport layer associated with other Rx port groups or UE capability parameters / values ​​(index of UE capability parameter / value / corresponding index of UE capability parameter / value), wherein the other Rx port groups or other UE capability parameters / values ​​are different from those associated with the first CSI. The CSI is associated with an Rx port group or UE capability parameter / value. In other words, the radio device assumes that the corresponding DL transmission based on the CSI is scheduled to the Rx port group associated with the CSI.

[0136] In some embodiments, for those in the CSI report The first layer related to the The calculation of each CSI is indicated by other CSIs. Each layer is not considered interference.

[0137] In some embodiments, in order to determine the first The wireless device assumes interference from the transport layer associated with at least one Rx port group or UE capability parameter / value (index of UE capability parameter / value / corresponding index of UE capability parameter / value), wherein the at least one Rx port group or UE capability parameter / value is different from the interference associated with the first CSI. The Rx port group or UE capability parameter / value associated with each CSI. In some examples, it is assumed to be for the first CSI. The transport layer causing the interference from a single CSI can be associated with one or more CSIs provided in the CSI report. This could refer to at least the [number missing] CSI. The transport layer corresponding to the first CSI can be considered as the first... Interference in the calculation of each CSI, where, . No. The and the first Each CSI is associated with a different Rx port group or UE capability parameter / value (index). In some cases, there may be more than one CSI in the CSI report, and the transport layer associated with it is considered to be the [missing information]. Interference (layer) in the calculation of each CSI. In other words, the wireless device assumes based on two CSIs (the first layer). The first CSI and the first The corresponding DL transmission of the CSI (the first CSI) is scheduled to the CSI (the second CSI). The first CSI and the first The two Rx port groups associated with each CSI.

[0138] In some embodiments, in order to determine the first The CSI, UE assumes, comes from at least the first CSI report provided. Interference at the transport layer associated with each CSI, where .

[0139] In some embodiments, two or more CSIs associated with the same Rx port group or the same UE capability parameter / value (index) may be provided in the CSI report.

[0140] In some embodiments, the UE reports two CSIs associated with two different Rx port groups or UE capability parameters / values ​​(indexes). For the calculation of the first or second CSI, the UE does not assume interference from the transport layer corresponding to any other Rx port group or other UE capability parameter / value (index of UE capability parameter / value / index corresponding to UE capability parameter / value) except for the Rx port group or UE capability parameter / value associated with the CSI (or assumes no interference). This reporting method is used to implement Rx port group switching / selection for DL / SL reception; that is, the UE operates only one Rx port group for reception at a given time, while other Rx port groups are not used for reception.

[0141] In some embodiments, the UE reports two CSIs corresponding to two different Rx port groups or UE capability parameters / values ​​(indexes), wherein For the calculation of the first CSI, the wireless device may assume that it is associated with the second CSI. Each transport layer is associated with the first CSI. Interference at the transport layer, and For the calculation of the second CSI, the wireless device may assume that it is associated with the first CSI. Each transport layer is associated with the second CSI. Interference at the transport layer.

[0142] Three CSIs reported In some embodiments, the wireless device is configured to determine and provide / transmit a CSI report including at least three CSIs to the network node, wherein The first CSI is associated with the first Rx port group or the index of the first UE capability parameter / value at the radio device. The second CSI is associated with the second Rx port group or the index of the second UE capability parameter / value at the radio device, and The third CSI is associated with one of the at least two Rx port groups at the wireless device or one of the at least two UE capability parameters / values.

[0143] In some alternatives, the first CSI and Each transport layer is associated with it, and the second CSI is associated with it. Each transport layer is associated. In the calculation of the first CSI, the wireless device may assume association with the second CSI. Each transport layer is associated with the first CSI. Interference at the transport layer. Similarly, in the calculation of the second CSI, the wireless device can assume interference associated with the first CSI. Each transport layer is associated with the second CSI. Interference at the transport layer. In other words, when determining the first and second CSIs, the wireless device assumes that the DL transmission is scheduled to at least two Rx port groups at the wireless device (to which the two CSIs are associated).

[0144] Third CSI and Each transport layer is associated with the following, Each transport layer is associated with one of at least two Rx port groups at the wireless device or one of the at least two UE capability parameters / values. In some examples, the third CSI may be associated with the first or second Rx port group at the wireless device or the index of the first or second UE capability parameter / value. In some alternatives, the third CSI may be calculated regardless of interference for any layer associated with the following: In addition to the Rx port group associated with the third CSI, any other Rx port group at the wireless device, In addition to the UE capability parameters / values ​​(indexes) associated with the third CSI, any other UE capability parameters / values ​​(indexes), or Any other CSI.

[0145] The CSI report, which includes three CSIs, is used to serve two use cases simultaneously: gNB scheduling of simultaneous reception across different port groups, and UE selection in single-port group scheduling (Rx port group handover / selection during DL / SL operations).

[0146] Four CSIs reported In some embodiments, the wireless device is configured to determine and provide / transmit a CSI report including at least four CSIs to the network node, wherein The first CSI is associated with the first Rx port group or the index of the first UE capability parameter / value at the radio device. The second CSI is associated with the second Rx port group or the index of the second UE capability parameter / value at the radio device, wherein, when determining the first CSI and the second CSI, the radio device assumes Associated with the second CSI The transport layer is considered to be the first CSI. Interference at each transport layer, and Associated with the first CSI The transport layer is considered to be the second CSI. Interference at the transport layer The third CSI is associated with one of the at least two Rx port groups at the wireless device or one of the at least two UE capability parameters / values, and The fourth CSI is associated with an Rx port group or UE capability parameter / value (index) at the radio device, which is different from the Rx port group or UE capability parameter / value (index) of the third CSI, wherein interference to other Rx port groups or other UE capability parameters / values ​​(index) at the radio device is not considered when determining the third or fourth CSI.

[0147] In some examples, the third CSI and the fourth CSI are associated with the first and second Rx port groups or the index of the UE capability parameters / values, respectively.

[0148] In some embodiments, the layer associated with a CSI calculated for a specific Rx port group or UE capability parameter / value (index) at a wireless device may or may not be considered interference with the layer corresponding to another CSI in the CSI report. This assumption regarding interference with CSI calculation may be provided to the UE via network signaling through the PHY layer or higher layers, or fixed in the communication specification.

[0149] X CSIs In some embodiments, the wireless device is configured to provide / transmit / include in the CSI report. Each CSI is associated with an Rx port group or UE capability parameter / value (index of UE capability parameter / value / corresponding index of UE capability parameter / value) at the radio device. In some alternative schemes, The value is configured to the wireless device by the network node via the PHY layer or higher layers and / or is known to the wireless device (e.g., the value is defined in the NR specification). Each CSI can be associated with one or more layers or transport layers.

[0150] In some embodiments, the network node configures or instructs the wireless device on an Rx port group or UE capability parameter / value (one or more indices) via the PHY layer or higher layers, and the wireless device provides CSI for that Rx port group or UE capability parameter / value (one or more indices).

[0151] In some examples, the wireless device provides CSIs in the CSI report in a sequential order, which is the order in which the CSI configured or indicated to the wireless device is associated with the Rx port group or UE capability parameter / value (one or more indices).

[0152] In some embodiments, the wireless device can select which Rx port groups or UE capability parameters / values ​​(one or more indices) to report CSI for. In some examples, the UE can provide the Rx port group or UE capability parameter / value (index) associated with the CSI via the indication / index of each CSI in the CSI report.

[0153] In some embodiments, the wireless device is known (e.g., as defined in the NR specification) to report CSI for which Rx port groups or UE capability parameters / values ​​(one or more indices of UE capability parameters / values ​​or one or more indices corresponding to UE capability parameters / values).

[0154] When determined When dealing with one of a series of CSIs, the radio device may assume that all layers corresponding to the DL transmission are associated with (or scheduled by the network node to) the Rx port group or UE capability parameter / value (index) associated with the CSI. That is, the radio device assumes no interference from layers associated with Rx port groups or UE capability parameter / value (index) not associated with the CSI. The UE assumes that for a given CSI, other Rx port groups or other UE capability parameter / value (index) not associated with the CSI are not used for the corresponding DL transmission (e.g., PDSCH transmission). This method allows the radio device to calculate the CSI for a single Rx port group at the radio device without interfering with DL transmissions from other Rx port groups at the radio device.

[0155] when At that time, the CSI report includes at least one CSI associated with one of the at least two Rx port groups at the radio device or one of the at least two UE capability parameters / values.

[0156] In one alternative, the radio device is instructed or configured with the Rx port group or UE capability parameter / value associated with the CSI. In another alternative, the radio device can select the Rx port group or UE capability parameter / value associated with the CSI. In yet another alternative, the Rx port group associated with the CSI is known to the radio device (e.g., it is defined in the NR specification).

[0157] In some embodiments, when At that time, the CSI report includes at least two CSIs, among which, Each CSI in the CSI is associated with a different Rx port group or a different UE capability parameter / value (index) at the radio device.

[0158] In some embodiments, when In order to calculate the first or second CSI, the wireless device assumes that there is no interference from the layer associated with the Rx port group or UE capability parameter / value (index), wherein the Rx port group or UE capability parameter / value (index) is different from the Rx port group or UE capability parameter / value (index) associated with the CSI.

[0159] In some embodiments, when In order to calculate the first or second CSI, the UE assumes interference with the following: Layers associated with other CSIs, or The layer associated with Rx port groups or UE capability parameters / values ​​(indexes) that are not associated with CSI.

[0160] X′+n CSI reports In some embodiments, the wireless device is configured with The value, wherein the wireless device provides or transmits including CSI and The CSI reports of the additional CSI (i.e., the total number of CSI reports) (CSI). In some alternatives, The value is fixed in the NR specification (known to the wireless device) or provided by the network node. In some alternatives, The value is received by the wireless device from the network node via the PHY layer or a higher layer (e.g., RRC).

[0161] In some embodiments, with the CSI and / or The calculation and / or reporting of one or more associated parameters and / or assumptions of an additional CSI are provided to the wireless device by the network node or fixed in the NR specification.

[0162] In some examples, The value is 1 or 2. In some examples, The value is 0, 1, 2, 3 or 4.

[0163] In one example, the wireless device is configured with Then, wireless devices can provide including CSI reports for each CSI. In another example, the UE can provide reports including... A CSI report from a CSI. In the example above... or The value can be configured to the wireless device or fixed in the NR specification (and is therefore known to the wireless device).

[0164] In some embodiments, the wireless device provides in the CSI report CSI, of which When determined When a CSI is used within a CSI, the radio device assumes that, apart from the Rx port group or UE capability parameter / value (one or more indices) associated with that CSI, there is no interference from layers associated with other Rx port groups or other UE capability parameters / values ​​(one or more indices), and When determined When using CSI in a CSI, the wireless device will assume the following as interference: The transport layer associated with at least one other Rx port group or other UE capability parameter / value (index), wherein the index of the at least one other Rx port group or other UE capability parameter / value is different from the Rx port group or UE capability parameter / value (index) associated with the CSI, or The transport layer associated with at least one other CSI provided in the CSI report.

[0165] In some embodiments, the wireless device is configured with The value of , where Wireless devices reported a total of [number] in the CSI report. CSI, of which , CSI is associated with the Rx port group or UE capability parameter / value (index) at the radio device. The reported In CSI CSI and A different Rx port group or UE capability parameter / value (index) is associated.

[0166] In some embodiments, the wireless device is configured with The value of , where Wireless devices reported a total of [number] in the CSI report. CSI, of which , CSI is associated with the Rx port group or UE capability parameter / value (index) at the radio device. The reported In CSI CSI and Affixed to different Rx port groups or UE capability parameters / values ​​(indexes), and in In the calculation of any CSI in a CSI, it is assumed that there is no interference with the layer associated with the Rx port group or UE capability parameter / value (index), wherein the Rx port group or UE capability parameter / value (index) is different from the Rx port group or UE capability parameter / value (index) associated with the CSI.

[0167] In some embodiments, the wireless device is configured with The value of , where Wireless devices reported a total of [number] in the CSI report. CSI, of which , CSI is associated with the Rx port group or UE capability parameter / value (index) at the radio device. In order to calculate the... For each CSI, the wireless device assumes that the transport layer associated with at least one Rx port group or UE capability parameter / value (index) is interference, wherein the at least one Rx port group or UE capability parameter / value (index) is different from the Rx port group or UE capability parameter / value (index) associated with the CSI.

[0168] In some embodiments, the wireless device is configured with The value of , where The UE reported a total of CSI, of which , CSI is associated with the Rx port group or UE capability parameter / value (index) at the radio device. No. The first CSI or the first Each CSI is associated with two different Rx port groups or UE capability parameters / values ​​(indexes), and in the calculation of the... The first CSI or the first When any of the CSIs occur, the wireless device assumes that the transport layer associated with at least one Rx port group or UE capability parameter / value (index) is interfering, wherein the at least one Rx port group or UE capability parameter / value (index) is different from the Rx port group or UE capability parameter / value (index) associated with the CSI.

[0169] In some examples, a CSI report may include a CSI that is associated with a layer that is assumed to interfere with another CSI provided in the CSI report.

[0170] In some examples, with the first The transport layer associated with the first CSI is assumed to be the first... The interference of the calculation of the first CSI, and with the first The transport layer associated with the first CSI is assumed to be the first... Interference in the calculation of each CSI.

[0171] In the above method, Each CSI enables the UE to report a CSI based on operating only one Rx port group at the UE, and the CSI reported for the Rx port group assumes that there is no simultaneous interference reception at any other Rx port group. If If it is zero, it may mean that the UE can operate multiple Rx port groups simultaneously.

[0172] In some embodiments, when At that time, wireless devices can be included in the CSI report. One CSI, of which, with CSI associated One or more indices of Rx port groups or UE capability parameters / values: Determined by the wireless device. Configured / instructed by network nodes, or It is fixed in the NR specification.

[0173] Based on the decision type (network indication / UE decision / specification instruction) in the CSI report, various operating modes of the UE Rx port group can be implemented.

[0174] Apart from In addition to the CSI, additional reports were submitted. One CSI is used to enable wireless devices to receive simultaneously using at least two Rx port groups. In the calculation of the additional CSI, the UE assumes interference from a layer associated with at least one Rx port group or UE capability parameter / value (index), wherein the at least one Rx port group or UE capability parameter / value (index) is different from the Rx port group or UE capability parameter / value (index) associated with the CSI. This means that, using two additional CSIs, simultaneous scheduling and reception at two Rx port groups of the wireless device can be achieved, where the CSI is optimized for interference across the two Rx port groups.

[0175] In some embodiments, the wireless device is configured to receive a CSI report configuration from a network node that includes only one CSI-RS resource for channel measurement.

[0176] In some embodiments, the wireless device is configured not to report the CSI-RS resource indicator in the CSI report.

[0177] In some embodiments, the wireless device is configured to provide / transmit / include in the CSI report. Each CSI includes at least the following parameters: Rank Indicator (RI) Channel Quality Indicator (CQI).

[0178] In some embodiments, the wireless device is configured to provide / transmit / include in the CSI report. Each CSI includes at least the following parameters: Rank Indicator (RI) Precoding Matrix Indicator (PMI) Layer Indicator (LI), if configured in the CSI reporting configuration, Channel Quality Indicator (CQI).

[0179] Rx port group indication In some embodiments, the wireless device is configured to perform DMRS of PDSCH. CDM group and wireless device An association or mapping between Rx port groups or UE capability parameters / values ​​(one or more indices). In some examples, the radio device receives an indication or configuration from the network node via the PHY layer or a higher layer indicating the association or mapping. In one alternative, the radio device receives the indication on the PDCCH / DCI used for scheduling the PDSCH. In another alternative, the association is determined by parameters or configuration associated with the PDCCH / DCI used for scheduling the PDSCH (e.g., parameters provided in the configuration of the search space / CORESET associated with the PDCCH / DCI). In some examples, rules for the association / mapping are provided in the NR specification.

[0180] In some embodiments, the wireless device is configured to perform an association or mapping between the DMRS / antenna port associated with CDM group '0' of the PDSCH and a first Rx port group or a first UE capability parameter / value (index), and an association or mapping between the DMRS / antenna port associated with CDM group '1' of the PDSCH and a second Rx port group or a second UE capability parameter / value (index), and so on. In some examples, this behavior is indicated by the network node through a value '0' used for this indication (e.g., on the PDCCH / DCI used for scheduling the PDSCH).

[0181] In some embodiments, the wireless device is configured to perform an association or mapping between the DMRS / antenna port associated with CDM group '1' of the PDSCH and a first Rx port group or a first UE capability parameter / value (index), and an association or mapping between the DMRS / antenna port associated with CDM group '0' of the PDSCH and a second Rx port group or a second UE capability parameter / value (index), and so on. In some examples, this behavior is indicated by the network node through a value '0' used for this indication (e.g., on the PDCCH / DCI used for scheduling the PDSCH).

[0182] In some embodiments, the wireless device is configured to perform PDSCH. codewords / transmission blocks and An association or mapping between Rx port groups or UE capability parameters or values ​​(one or more indices). In some examples, the radio device receives an indication or configuration from the network node via the PHY layer or a higher layer indicating / determining the association / mapping. In one alternative, the radio device receives the indication on the PDCCH / DCI used for scheduling the PDSCH. In another alternative, the association is determined by parameters or configuration associated with the PDCCH / DCI used for scheduling the PDSCH (e.g., parameters provided in the configuration of the search space / CORESET associated with the PDCCH / DCI). In some examples, rules for the association / mapping are provided in the communication specification.

[0183] In some embodiments, the wireless device is configured to perform an association or mapping between a first codeword / transport block of the PDSCH and a first Rx port group or a first UE capability parameter or value (index), and an association or mapping between a second codeword / transport block of the PDSCH and a second Rx port group or a second UE capability parameter or value (index), and so on. In some examples, this behavior is indicated by the network node using a value '0' for this indication (e.g., on the PDCCH / DCI used for scheduling the PDSCH).

[0184] In some embodiments, the wireless device is configured to perform the association or mapping between the second codeword / transport block of the PDSCH and the first Rx port group or the first UE capability parameter or value (index), and the association or mapping between the first codeword / transport block of the PDSCH and the second Rx port group or the second UE capability parameter or value (index), and so on. In some examples, this behavior is indicated by the network node through the value '1' used for this indication (e.g., on the PDCCH / DCI used for scheduling the PDSCH).

[0185] In some embodiments, the wireless device is configured to perform the association of the PDSCH with a first Rx port group or a first UE capability parameter or value (index). In some examples, the UE receives an indication / configuration indicating / determining the association from a network node via the PHY layer or a higher layer. In one alternative, the UE receives the indication on a PDCCH / DCI used for scheduling the PDSCH. In another alternative, the association is determined by parameters or configuration associated with the PDCCH / DCI used for scheduling the PDSCH (e.g., parameters provided in the configuration of the search space / CORESET associated with the PDCCH / DCI). In some examples, rules for the association are provided in the communication specification.

[0186] In some embodiments, the wireless device is configured to perform the association of PDSCH with a first Rx port group or a first UE capability parameter or value (index). In some examples, this behavior is indicated by a value '0' used for the indication (e.g., on the PDCCH / DCI used for scheduling PDSCH).

[0187] In some embodiments, the wireless device is configured to perform the association of PDSCH with a second Rx port group or a second UE capability parameter or value (index). In some examples, this behavior is indicated by a value '1' used for the indication (e.g., on the PDCCH / DCI used for scheduling PDSCH).

[0188] In some embodiments, the wireless device is configured to receive a PDSCH, one or more DMRS ports of the PDSCH, or a codeword of the PDSCH on one or more ports of an Rx port group associated with an index of a UE capability parameter / value, wherein one or more ports of the Rx port group are associated with the PDSCH or the DMRS port of the PDSCH or the codeword of the PDSCH.

[0189] In some embodiments, the wireless device is configured to receive at least two PDCCH / DCI, wherein Each PDCCH / DCI is used to schedule PDSCH and is associated with a different value of an index or indicator, and The scheduled PDSCHs partially or completely overlap in time and / or frequency.

[0190] In some embodiments, a PDSCH scheduled by a first PDCCH / DCI associated with a first value of an index / indicator is associated with a first Rx port group or a first UE capability parameter or value (index), and a PDSCH scheduled by a second PDCCH / DCI associated with a second value of an index / indicator is associated with a second Rx port group or a second UE capability parameter or value (index), and so on.

[0191] In some examples, the first PDCCH / DCI is associated with a first value (e.g., '0') of the index or indicator, and the second PDCCH / DCI is associated with a second value (e.g., '1') of the index or indicator, and so on. In some examples, the index or indicator is provided in a field of the PDCCH or DCI. In some other examples, the index or indicator is configured for the PDCCH or DCI via a higher layer (e.g., provided in the configuration of the search space or CORESET associated with the PDCCH or DCI).

[0192] In some examples, the mapping between the index / indicator value and the Rx port group or UE capability parameter / value (index) is fixed in the communication specification. In some alternatives, the mapping is a one-to-one mapping.

[0193] In some embodiments, the DMRS port indicated in a given PDCCH / DCI is associated with a CDM group that is different from the CDM group of any other DMRS port indicated in said PDCCH / DCI. In some examples, the rules governing the indexes of the CDM groups that a PDCCH / DCI associated with a given index value can indicate are fixed in the communication specification (e.g., with the index...). The associated PDCCH / DCI can indicate the source from the CDM group. The DMRS port, and The value and This mapping between values ​​can be a one-to-one mapping.

[0194] In some embodiments, the at least two PDCCH / DCIs are received on the same CORESET or different CORESETs, and the value of an index or indicator in a field of one of the PDCCH / DCIs is different from the value of the index or indicator in the field of any other PDCCH / DCI.

[0195] In some embodiments, the at least two PDCCH / DCIs are received on the same CORESET or different CORESETs, and the values ​​of the indexes or indicators associated with the PDCCH / DCIs via higher layers are different from the values ​​of the indexes or indicators associated with any other PDCCH / DCIs via higher layers.

[0196] In some embodiments, each of the at least two PDCCH / DCIs is received on different CORESETs, and a given CORESET is associated with a value of a CORESET pool index that is different from the value of a CORESET pool index associated with any other CORESET. The CORESET pool index is an index / parameter that is provided in the CORESET configuration or associated with the CORESET via fixed rules in the communication specification.

[0197] CSI-RS Resource Allocation In some embodiments, in a CSI reporting configuration, the wireless device is configured with a single (non-zero power (NZP)) CSI-RS resource for channel measurements, wherein the CSI-RS resource includes several antenna ports or CSI-RS ports. The wireless device receives CSI-RS ports, which are included in the CSI-RS resource and transmitted by network nodes on two or more Rx port groups at the wireless device.

[0198] In some alternatives, the wireless device generates a CSI report that includes CSIs corresponding to one or more Rx port groups and sends the CSI report to the network node via an uplink channel (e.g., PUSCH or PUCCH).

[0199] In some embodiments, in a CSI reporting configuration, a wireless device (such as a UE or IoT device) is configured with at least two (NZP) CSI-RS resources for channel measurement, wherein each CSI-RS resource includes several antenna ports or CSI-RS ports. The wireless device receives CSI-RS ports included in the first CSI-RS resource and transmitted by a network node on a first Rx port group, and receives CSI-RS ports included in the second CSI-RS resource on a second Rx port group, and so on. In some cases, the CSI report includes information about the association between the CSI-RS resources and the Rx port groups. For example, each CSI may include an index or indicator associated with the Rx port group.

[0200] In some embodiments, in a CSI report configuration, a wireless device (such as a UE or IoT device) is configured with at least two (NZP) CSI-RS resources for channel measurement, wherein each CSI-RS resource includes several antenna ports or CSI-RS ports. A first CSI-RS resource is associated with an index of a first UE capability parameter / value, and a second CSI-RS resource is associated with an index of the first UE capability parameter / value, and so on. In some cases, the CSI report includes information about the association between CSI-RS resources and the indexes of UE capability parameters / values. For example, each CSI may include an index or indicator that indicates / points to / maps to a UE capability parameter / value.

[0201] In some alternatives, each CSI-RS resource is associated with a QCL hypothesis or TCI state, where the QCL hypothesis or TCI state of the CSI-RS resource is the same or different.

[0202] TCI status of each Rx port group In some embodiments, a method is provided performed by a wireless device (such as a UE or IoT device), the method comprising: Received from network node: Configuration or indication of at least one or more TCI states for downlink reception, wherein the configuration or indication is received via the PHY layer or a higher layer, and The mapping / association of one or more TCI states to one or more Rx port groups or UE capability parameters / values ​​(one or more indices) at the radio device, wherein the mapping / association is received via the PHY layer or higher layers (e.g., RRC or MAC-CE). Apply the configuration or indication to the association / mapping of TCI states.

[0203] In some embodiments, the UE is configured to receive PDCCH / DCI signaling, MAC-CE messages, or higher-layer configurations (e.g., RRC), which will at least be configured for downlink reception. Each TCI state is associated with / mapped to Each Rx port group or UE capability parameter / value (index) is mapped to or associated with an Rx port group or UE capability parameter / value (index).

[0204] In some embodiments, the UE is configured to receive PDCCH / DCI signaling, MAC-CE messages, or higher-layer configurations (e.g., RRC), which will at least be configured for downlink reception. Each TCI state is associated with / mapped to an Rx port group or UE capability parameter / value (index).

[0205] In some embodiments, a method is provided performed by a wireless device (such as a UE or IoT device), the method comprising: Receive configurations or indications of at least one or more TCI states for downlink reception from network nodes via the PHY layer or higher layers, and Map / associate the one or more TCI states to one or more Rx port groups or UE capability parameters / values ​​(one or more indices) at the wireless device.

[0206] In this scenario, mapping / association is performed according to fixed rules in the communication specification. In some examples, rules can be specified based on configuration / indications associated with or provided within one or more downlink receptions of the PDCCH used to schedule the PDSCH. In some alternatives, each TCI state is mapped to or associated with an index of an Rx port group or UE capability parameter / value.

[0207] In some embodiments, the UE is configured to receive a MAC-CE message that maps one or more TCI states to code points in the TCI field of the PDCCH / DCI. One or more TCI states are mapped to code points, and if more than one TCI state is mapped to a code point, each TCI state is associated with a different Rx port group or UE capability parameter / value (index). For example, a first TCI state mapped to a code point is associated with a first Rx port group or UE capability parameter / value (index), and a second TCI state mapped to a code point is associated with a second Rx port group or UE capability parameter or value (index).

[0208] Note that UE capability parameters / values ​​can be associated with the Rx port group at the wireless device.

[0209] In some embodiments, the wireless device (such as a UE or IoT device) is configured to: Receive a PDCCH or DCI from a network node indicating at least one TCI state, which is mapped to or associated with an Rx port group or UE capability parameter / value (index) at the radio device. The TCI state is applied to the reception of one or more ports, codewords, or transmission times of one or more PDSCHs.

[0210] In some embodiments, a method is provided performed by a wireless device (such as a UE or IoT device), the method comprising: Received from network nodes via the PHY layer or higher layers The configuration or indication of a TCI state, the TCI state being used for downlink reception of one or more PDSCHs, and Map / associate the at least two TCI states to A different Rx port group or A list of different UE capability parameters / values ​​(indexes).

[0211] In some embodiments, a method is provided performed by a wireless device (such as a UE or IoT device), the method comprising: Received from network nodes via the PHY layer or higher layers Configuration or indication of each TCI status Map / associate TCI states with the following items: CDM group of PDSCH's DMRS port PDSCH codewords The timing of PDSCH transmission, or PDSCH transport block / codeword repetition / transmission attempt.

[0212] In some embodiments, a method is provided performed by a wireless device (such as a UE or IoT device), the method comprising: Received from network nodes via the PHY layer or higher layers Configuration or indication of each TCI status Map / associate the first TCI state with the following: The first CDM group of the DMRS port of PDSCH. The first codeword of PDSCH The first transmission timing of PDSCH, or At least one repeat / transmission attempt of the PDSCH transport block / codeword, and Map / associate the second TCI state with the following: The second CDM group of the DMRS port of PDSCH. The second codeword of PDSCH The second transmission timing of PDSCH, or At least one repeat / transmission attempt of other PDSCH transport blocks / codewords besides those mapped to the first TCI state. And so on.

[0213] In some embodiments, the wireless device is configured to receive data that may be present in the PDCCH / DCI used for scheduling the PDSCH. There are 10 fields, where the code points of each field are mapped to: Rx port group or UE capability parameter / value (index). CDM group of the DMRS port of PDSCH (e.g., PDSCH scheduled by the PDCCH / DCI), At least one repeat / transmission attempt of PDSCH transport block / codeword (e.g., PDSCH scheduled by the PDCCH / DCI), or PDSCH codewords.

[0214] In some embodiments, the values ​​of fields in the PDCCH / DCI used for scheduling PDSCH can indicate / determine the... Mapping / association of each TCI state to the following items: One Rx port group or One or more indices of a UE capability parameter / value. DMRS port of PDSCH One CDM group, PDSCH transport block / codeword repetition / transmission attempt A number of distinct sets, wherein each set may include at least one repeat / transmission attempt, or PDSCH Each code character.

[0215] In the example, a value of '0' in the field can associate or map the first TCI state to an Rx port group, UE capability parameter / value, CDM group, transmission attempt / repeat, or index. The codeword, and associate or map the second TCI state to the Rx port group, UE capability parameter / value, CDM group, transmission attempt / repeat or index. The codeword. On the other hand, the value '1' of the field can map the first TCI state to the index. And map the second TCI state to the index. (In this example, ).

[0216] In some examples, the CDM group, repeat / transmission attempt, or codeword of the PDSCH is scheduled / activated by the PDCCH / DCI.

[0217] In some embodiments, the wireless device is configured to apply a TCI state associated with the DMRS port, codeword, transmission timing, or transmission attempt / repetition of the PDSCH to the following: PDSCH's DMRS port PDSCH transport block / codeword, The timing of PDSCH transmission, or PDSCH transport block / codeword transport attempts / repeats.

[0218] In some embodiments, the wireless device is configured to perform One Rx port group or Each UE capability parameter or value (index) is associated with the following: Scheduled by PDCCH / DCI One PDSCH transport block / codeword, Associated with the DMRS port of PDSCH scheduled by PDCCH / DCI. One CDM group, or One PDSCH transmission opportunity.

[0219] The above association can be performed using explicit signaling and / or fixed rules in the communication specifications issued from network nodes via the PHY layer or higher layers.

[0220] In some embodiments, the wireless device is configured to receive at least two PDCCH / DCI, wherein Each PDCCH / DCI is used to schedule PDSCH. The scheduled PDSCHs partially or completely overlap in time and / or frequency, and Each PDSCH is associated with a TCI state, which is associated with different of the following: The value of the index / indicator, Rx port group at (UE), or UE capability parameters / values ​​(index).

[0221] In some embodiments, the wireless device is configured to receive PDSCH DMRS ports, PDSCH transport blocks / codewords, PDSCH transmission timings, or PDSCH transmission attempts / repetitions on an Rx port group or on an Rx port group associated with it via implicit association (e.g., using fixed rules in the communication specification) or explicit association from network signaling issued via the PHY layer or higher layers.

[0222] In some examples, the wireless device is also configured to apply a TCI state to the reception, the TCI state being mapped / associated with the following: Rx port group or UE capability parameter / value (index). The DMRS port of the PDSCH The PDSCH transport block / codeword, The transmission timing of the PDSCH, or The transmission attempt / repetition of the PDSCH.

[0223] In this disclosure, one or more indices / indicators mapped to Rx port groups or UE capability parameters / values ​​(one or more indices of UE capability parameters / values ​​or one or more indices corresponding to UE capability parameters / values) can be used to determine Rx port group associations.

[0224] refer to Figure 5 This illustrates a method performed by a wireless device (300) according to some of the foregoing embodiments. The method is performed by a wireless device (such as a UE or IoT device) (300) comprising at least two receive (Rx) port groups, wherein the Rx port groups include one or more antenna ports for wireless reception at the wireless device (300). The method includes: Receive (501) configuration for Channel State Information (CSI) reporting from network node (400). One or more CSIs are determined based on the configuration used for CSI reporting configuration, wherein each of the one or more CSIs is associated with an Rx port group in the at least two Rx port groups. Generate (503) a CSI report including one or more of the CSIs, and Report to network node (400) (504) or send a CSI report.

[0225] Reporting to network nodes (504) or sending CSI reports can be performed via the uplink (UL) channel.

[0226] In some embodiments, the total number N of the Rx antenna ports of the wireless device is an even number, and the number of Rx port groups at the wireless device is 2, such that each Rx port group includes N / 2 Rx antenna ports.

[0227] In some embodiments, the method further includes using a user equipment (UE) capability report to report information relating to the number of Rx port groups and / or Rx port groups at the radio device.

[0228] In some embodiments, the method further includes reporting information about multiple sets of downlink (DL) receive layers or multiple sets of uplink (UL) ports supported by the wireless device in UL resources or UL transport configurations.

[0229] In some embodiments, this information is used to infer the number of Rx port groups included or supported by the wireless device.

[0230] In some embodiments, the CSI report includes at least two CSIs, wherein the first CSI is associated with L-1≥1 transport layers and the second CSI is associated with L_2≥1 transport layers.

[0231] In some embodiments, when the information includes G ≥ 2 values ​​corresponding to the UL ports of the uplink resources, the wireless device includes G transmit (Tx) port groups and G Rx port groups.

[0232] In some embodiments, the method further includes reporting information to network nodes about transmit (Tx) or uplink antenna ports used for uplink transmissions at the wireless device.

[0233] In some embodiments, the wireless device is associated with or supports G_T≥2 Tx port groups, and there is a one-to-one association between the Rx port group and the Tx port group.

[0234] In some embodiments, the CSI in one or more CSIs includes at least a value for a wideband channel quality indicator (CQI) or a subband CQI.

[0235] In some embodiments, one or more CSIs are associated with a value or parameter that is associated with the number of SRS ports or the number of SRS resources / resource sets of a probe reference signal (SRS) resource or resource set, wherein the value or parameter is a UE capability value or parameter.

[0236] In some embodiments, the CSI in one or more CSIs includes at least a rank indicator (RI) and a channel quality indicator (CQI).

[0237] refer to Figure 6 This illustrates a method performed by a wireless device (300) according to some of the foregoing embodiments. The method, performed by the wireless device (such as a UE or IoT device) (300), is used to generate and report or send a CSI report. The method includes: Receive (601) configuration for Channel State Information (CSI) reporting from network node (400). One or more CSIs are determined based on the configuration used for CSI reporting, wherein each of the one or more CSIs is associated with user equipment (UE) capability information. Generate (603) a CSI report including one or more of the CSIs, and Report to network node (400) (604) or send a CSI report.

[0238] In some embodiments, the association between each of the one or more CSIs and UE capability information includes implicitly or explicitly associating each of the one or more CSIs with an index or indicator that indicates, maps, or points to a UE capability value and / or parameter. In this disclosure, unless otherwise defined, the term "parameter / value" means "parameter and / or value".

[0239] In some embodiments, the UE capability report includes information relating to at least one of the following UE capability parameters / values: The number of layers or the maximum number of layers (e.g., the number of layers used for downlink / uplink (DL / UL) transmission, the number of layers used for physical downlink shared channel / physical uplink shared channel (PDSCH / PUSCH), etc.). The number of Sound Reference Signal (SRS) ports or the maximum number of SRS ports. The minimum value for the number of SRS resource sets or the maximum number of SRS resource sets is 2.

[0240] In some embodiments, the method further includes reporting or sending a UE capability report related to the UE capability information to a network node, wherein the UE capability information includes at least... Each UE capability value or parameter.

[0241] In some embodiments, the first UE capability parameter / value is associated with a first index or index '1', the second UE capability parameter / value is associated with a second index or index '2', and so on.

[0242] In some embodiments, the method further includes reporting or sending a UE capability report to a network node, wherein the UE capability report includes parameters relating to at least one of the following: The number of Rx port groups or Rx / RF processing chains at the wireless device. The number of SRS resources or SRS resource sets The maximum number of SRS resources or SRS resource sets. The number of PDSCH / PUSCH that can be scheduled in cases of partial / complete overlap in time and / or frequency. The number of possible values ​​of the index / indicator that CSI can associate with. The number of possible values ​​of the index / indicator that can be associated with the codeword of PDSCH / PUSCH. The number of possible values ​​of the index / indicator that can be associated with the code division multiplexing (CDM) group of the PDSCH / PUSCH demodulation reference signal (DMRS) port. The number of possible values ​​of the index / indicator that can be associated with the downlink control information (DCI) used to schedule PUSCH / PDSCH.

[0243] In some embodiments, the CSI report includes an indicator or index associated with the CSI in the CSI report, the indicator or index indicating or mapping to the following: Rx port group Index corresponding to UE capability parameters, or UE capability parameters / values.

[0244] In some embodiments, the CSI includes at least one indicator that indicates the rank or number of transport layers, or the number of layers of the precoder indicated by the CSI.

[0245] In some embodiments, the CSI report includes a single CSI associated with at least two Rx port groups or one of the UE capability values / parameters.

[0246] In some embodiments, the CSI report includes at least two CSIs, wherein a first CSI is associated with a first Rx port group or a first UE capability parameter / value at the radio device, and a second CSI is associated with a second Rx port group or a second UE capability parameter / value at the radio device, and so on.

[0247] In some embodiments, for the first The calculation of the first CSI, interference from the transport layer and the first The CSI is associated with the first one, where the second one is the third one. The and the first Each CSI is associated with a different Rx port group or a different UE capability parameter / value, and .

[0248] In some embodiments, for the calculation of CSI, at least one of the following conditions is satisfied: Apart from the Rx port group or UE capability parameters / values ​​associated with the CSI, there is no interference from the transport layer associated with other Rx port groups or other UE capability parameters / values. DL transmissions to the wireless device are only scheduled to the Rx port group associated with the CSI or the UE capability parameters / values.

[0249] In some embodiments, the CSI report includes at least three CSIs, wherein The first CSI is associated with the first Rx port group or the first UE capability parameter / value at the radio device. The second CSI is associated with the second Rx port group or the second UE capability parameter / value at the radio device, and The third CSI is associated with one of the at least two Rx port groups at the wireless device or one of the at least two UE capability parameters / values.

[0250] In some embodiments, For the calculation of the first CSI, the second CSI is associated with Each transport layer is associated with the first CSI. Interference at the transport layer For the calculation of the second CSI, the one associated with the first CSI is... Each transport layer is associated with the second CSI. Interference at the transport layer.

[0251] In some embodiments, for the calculation of the third CSI, there is no interference with any layer associated with the following: In addition to the Rx port group associated with the third CSI, any other Rx port group at the wireless device, or Any other UE capability parameters / values ​​besides those associated with the third CSI, or Any other CSI.

[0252] In some embodiments, the CSI report includes at least four CSIs, wherein The first CSI is associated with a first Rx port group or a first UE capability parameter / value at the radio device, and the second CSI is associated with a second Rx port group or a second UE capability parameter / value at the radio device, wherein, when determining the first CSI and the second CSI, Associated with the second CSI The transport layer is for the first CSI. Interference at the transport layer, and Associated with the first CSI The transport layer is for the second CSI. Interference at the transport layer The third CSI is associated with one of the at least two Rx port groups at the wireless device or one of the at least two UE capability parameters / values, and the fourth CSI is associated with an Rx port group or UE capability parameter / value at the wireless device, wherein the Rx port group or UE capability parameter / value is different from the Rx port group or UE capability parameter / value of the third CSI, wherein there is no interference with other Rx port groups or other UE capability parameters / values ​​at the wireless device for the determination of the third or fourth CSI.

[0253] In some embodiments, the CSI report includes CSI, of which When determined When CSI is in a CSI, except for the CSI in the CSI, Apart from the Rx port group or UE capability parameter / value associated with the CSI in each CSI, there is no interference from layers associated with other Rx port groups or other UE capability parameters / values, and When determined When performing CSI within a CSI, interference exists from the following: The transport layer associated with at least one other Rx port group or other UE capability parameter / value, which is different from the one mentioned above. The Rx port group or UE capability parameter / value associated with the CSI in each CSI, or The transport layer associated with at least one other CSI included in the CSI report.

[0254] In some embodiments, The value is configured or indicated to the UE by the network node, and The value is either a fixed value or indicated to the UE by the network node.

[0255] In some embodiments, at least one of the following conditions applies: The value is at least one of the following: {0, 1, 2, 3, 4}. The value is at least one of the following: {1, 2}.

[0256] In some embodiments, the method further includes obtaining an indicator that indicates one or more Rx port groups or one or more UE capability parameters / values, and providing CSI information about the indicated one or more Rx port groups or one or more UE capability parameters / values ​​in a CSI report.

[0257] refer to Figure 7 The present invention illustrates a method performed by a wireless device (300) according to some of the foregoing embodiments. The method is performed by a wireless device (such as a UE or an IoT device) (300) and includes: generating (701) a UE capability report, wherein the UE capability report includes information relating to at least two receive (Rx) port groups or the number of Rx port groups of the wireless device, and reporting (702) or sending the UE capability report to a network node (400).

[0258] In some embodiments, information related to the two Rx port groups may be in the form of the number of layers supported by each Rx port group, the number of ports configured for each Rx port group, etc. Information related to the number of Rx port groups may be in the form of the number of SRS resource sets, the number of simultaneous PDSCHs that can be scheduled, etc.

[0259] In some embodiments, the Rx port group includes one or more antenna ports for wireless reception at a wireless device.

[0260] In some embodiments, the UE capability report includes at least one of the following: Values: number of layers or maximum number of layers, number of SRS resource sets or resources, maximum number of SRS resource sets or resources, number of SRS ports of SRS resources or SRS resource sets, and maximum number of SRS ports of SRS resources or SRS resource sets.

[0261] In some embodiments, This value indicates the number of Rx port groups at the wireless device and / or Each value in the value set is associated with a group of Rx ports at the wireless device.

[0262] In some embodiments, the UE capability report also includes parameters relating to at least one of the following: The number of SRS resources or SRS resource sets The maximum number of SRS resources or SRS resource sets. The number of PDSCH / PUSCH that can be scheduled in cases of partial / complete overlap in time and / or frequency. The number of possible values ​​of the index / indicator that CSI can associate with. The number of possible values ​​of the index / indicator that can be associated with the codeword of PDSCH / PUSCH. The number of possible values ​​of the index / indicator that the CDM group of the DMRS port of PDSCH / PUSCH can be associated with. The number of possible values ​​of the index / indicator that the DCI used to schedule PUSCH / PDSCH can be associated with.

[0263] In some embodiments, the method further includes: performing PDSCH on the DMRS port. CDM group and wireless device One Rx port group or The association or mapping between UE capability parameters / values.

[0264] In some embodiments, the method further includes one of the following: The DMRS / antenna port associated with CDM group '0' of PDSCH is associated / mapped with the first Rx port group or the first UE capability parameter / value, and the DMRS / antenna port associated with CDM group '1' of PDSCH is associated / mapped with the second Rx port group or the second UE capability parameter / value. The DMRS / antenna port associated with CDM group '1' of PDSCH is associated / mapped with the first Rx port group or the first UE capability parameter / value, and the DMRS / antenna port associated with CDM group '0' of PDSCH is associated / mapped with the second Rx port group or the second UE capability parameter / value.

[0265] In some embodiments, the method further includes one of the following: Associate / map the first codeword / transmission block of the PDSCH with the first Rx port group or the first UE capability parameter / value, and associate / map the second codeword / transmission block of the PDSCH with the second Rx port group or the second UE capability parameter / value. Associate / map the second codeword / transmission block of the PDSCH with the first Rx port group or the first UE capability parameter / value, and associate / map the first codeword / transmission block of the PDSCH with the second Rx port group or the second UE capability parameter / value.

[0266] In some embodiments, the method further includes associating / mapping the PDSCH with an Rx port group or a UE capability parameter / value, wherein the association / mapping is determined by at least one of the following: Indications on the Physical Downlink Control Channel / Downlink Control Information (PDCCH / DCI) used for scheduling the PDSCH The parameters or configurations associated with the PDCCH / DCI used to schedule the PDSCH. Reservation rules.

[0267] In some embodiments, predetermined rules can be specified in the NR specification.

[0268] In some embodiments, the method further includes receiving at least two PDCCH / DCI, wherein Each PDCCH / DCI is used to schedule PDSCH and is associated with a different value of an index or indicator. The scheduled PDSCHs partially or completely overlap in time and / or frequency, and The PDSCH scheduled by the first PDCCH / DCI is associated with the first Rx port group or the first UE capability parameter / value, and the PDSCH scheduled by the second PDCCH / DCI is associated with the second Rx port group or the second UE capability parameter or value, and so on.

[0269] In some embodiments, the first PDCCH / DCI is associated with a first value (e.g., '0') of the index or indicator, and the second PDCCH / DCI is associated with a second value (e.g., '1') of the index or indicator, and so on, wherein Provide an index or indicator in the fields of the PDCCH or DCI to indicate / execute the association, or The association is indicated / executed by configuring an index or indicator for the PDCCH or DCI at a higher level (e.g., providing an index or indicator in the configuration of the search space or control resource set (CORESET) associated with the PDCCH or DCI).

[0270] In some embodiments, the at least two PDCCH / DCIs are received on the same CORESET or different CORESETs, and the value of an index or indicator in a field of one of the PDCCH / DCIs is different from the value of the index or indicator in the field of any other PDCCH / DCI.

[0271] In some embodiments, the at least two PDCCH / DCIs are received on the same CORESET or different CORESETs, and the value of the index or indicator associated with the PDCCH / DCI via a higher layer is different from the value of the index or indicator associated with any other PDCCH / DCI via a higher layer (e.g., the CORESET pool index configured for the CORESET associated with the PDCCH / DCI).

[0272] In some embodiments, the at least two PDCCH / DCIs are associated with different CDM groups of the DMRS ports of the PDSCH.

[0273] In some embodiments, the method further includes receiving a PDSCH, one or more DMRS ports of the PDSCH, or a codeword of the PDSCH on one or more antenna ports of an Rx port group associated with a UE capability parameter / value, wherein the UE capability parameter / value is implicitly (e.g., via fixed rules in a communication specification) or explicitly (e.g., via network node signaling issued via the PHY layer and / or higher layers) associated with the PDSCH or the DMRS port of the PDSCH or the codeword of the PDSCH.

[0274] In some embodiments, the method further includes: Received from network node: Configuration or indication of at least one or more Transport Configuration Indication (TCI) states for downlink reception, wherein the configuration or indication is received via the PHY layer or a higher layer, and The mapping / association of one or more TCI states to one or more Rx port groups or UE capability parameters / values ​​at the radio device, wherein the mapping / association is received via the PHY layer or higher layers (e.g., Radio Resource Control (RRC) or Media Access Control-Control Element (MAC-CE)). Apply the configuration or indication to the association / mapping of TCI states.

[0275] In some embodiments, the method further includes: receiving PDCCH / DCI signaling, MAC-CE messages, or higher-layer configurations (e.g., RRC), wherein the PDCCH / DCI signaling, MAC-CE messages, or higher-layer configurations are configured at least for downlink reception. Each TCI state is associated with / mapped to Each Rx port group or UE capability parameter / value is mapped to or associated with an Rx port group or UE capability parameter / value.

[0276] In some embodiments, the method further includes: Receive configurations or indications of at least one or more TCI states for downlink reception from network nodes via the PHY layer or higher layers, and The one or more TCI states are mapped / associated to one or more Rx port groups or UE capability parameters / values ​​at the wireless device, wherein each TCI state is mapped to or associated with an Rx port group or UE capability parameter / value.

[0277] In some embodiments, the method further includes: receiving a MAC-CE message that maps one or more TCI states to code points of a TCI field in a PDCCH / DCI, wherein one or more TCI states are mapped to code points, and if more than one TCI state is mapped to a code point, a first TCI state mapped to a code point is associated with a first Rx port group or UE capability parameter / value, and a second TCI state mapped to a code point is associated with a second Rx port group or UE capability parameter or value, and so on.

[0278] In some embodiments, the method further includes receiving data from the network node via the PHY layer or higher layers. Configuration or indication of each TCI status Map / associate the first TCI state with at least one of the following: The first CDM group of the DMRS port of PDSCH. The first codeword of PDSCH The first transmission timing of PDSCH At least one repeat / transmission attempt of the PDSCH transport block / codeword, and Map / associate the second TCI state with at least one of the following: The second CDM group of the DMRS port of PDSCH. The second codeword of PDSCH The second transmission timing of PDSCH, or At least one repeat / transmission attempt of other PDSCH transport blocks / codewords besides those mapped to the first TCI state. And so on.

[0279] In some embodiments, the values ​​of fields in the PDCCH / DCI used for scheduling PDSCH or fixed rules in the communication specification indicate / determine the... Mapping / association of each TCI state to at least one of the following: One Rx port group or Each UE capability parameter / value DMRS port of PDSCH One CDM group, PDSCH transport block / codeword repetition / transmission attempt A number of distinct sets, wherein each set may include at least one repeat / transmission attempt, and PDSCH Each code character.

[0280] In some embodiments, the method further includes: receiving at least two PDCCH / DCI, wherein Each PDCCH / DCI is used to schedule PDSCH. The scheduled PDSCHs partially or completely overlap in time and / or frequency, and Each PDSCH is associated with a TCI state, which is associated with different of the following: The value of the index / indicator, The Rx port group at the wireless device, or UE capability parameters / values.

[0281] In some embodiments, the method further includes applying a TCI state associated with the DMRS port, codeword, transmission timing, or transmission attempt / repetition of the PDSCH to the following: PDSCH's DMRS port PDSCH transport block / codeword, The timing of PDSCH transmission, or PDSCH transport block / codeword transport attempts / repeats.

[0282] In some embodiments, the method further includes receiving at least one of the following on an Rx port group associated with a UE capability parameter / value: PDSCH's DMRS port PDSCH transport block / codeword PDSCH transmission timing, or PDSCH transmission attempt / repeat The association can be an implicit association (e.g., using fixed rules in the communication specification) or an explicit association from network signaling issued via the PHY layer or higher layers.

[0283] In order to perform the aforementioned process or method steps executed by the wireless device, a wireless device is also provided. Figure 3A simplified block diagram depicting a wireless device (such as a UE or IoT device) 300 is shown. The wireless device 300 includes a processor 310 or processing circuitry or processing module or processing means 310; receiver circuitry or receiver module 340; transmitter circuitry or transmitter module 350; memory module 320; and transceiver circuitry or transceiver module 330, which may include transmitter circuitry 350 and receiver circuitry 340. The wireless device 300 also includes an antenna system 360, which includes antenna circuitry for transmitting / receiving signals to or from network nodes or other wireless devices. The antenna system employs beamforming as described above.

[0284] The wireless device 300 can belong to any wireless access technology that supports beamforming technology, including 4G or LTE, LTE-A, 5G, advanced 5G, or combinations thereof. The wireless device, including a processor and memory, contains instructions executable by the processor, thereby enabling the wireless device 300 to operate or be configured to perform any of the embodiments described above in relation to the wireless device. In some embodiments, the wireless device 300 can be a UE or an IoT device.

[0285] Processing module / circuit 310 includes a processor, microprocessor, application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), etc., and may be referred to as a "processor". Processor 310 controls the operation of the wireless device and its components. Memory (circuit or module) 320 includes random access memory (RAM), read-only memory (ROM), and / or another type of memory to store data and instructions usable by processor 310. Generally, it should be understood that in one or more embodiments, wireless device 700 includes fixed or programmable circuitry configured to perform the operations of any of the embodiments disclosed herein.

[0286] In at least one such example, processor 310 includes a microprocessor, microcontroller, DSP, ASIC, FPGA, or other processing circuitry configured to execute computer program instructions from a computer program stored in or on a non-transitory computer-readable medium accessible to the processing circuitry. Here, "non-transitory" does not necessarily mean permanent or immutable storage and may include storage in working or volatile memory, but the term does indeed imply at least some persistent storage. The execution of the program instructions specifically tunes or configures the processing circuitry to perform the operations disclosed herein in relation to the wireless device. Furthermore, it should be understood that wireless device 300 may include additional components.

[0287] The wireless device 300 executes instructions contained in the memory 320 via the processor 310, thereby enabling the wireless device to perform any of the foregoing embodiments relating to actions performed by the wireless device, some of which are presented in the appended claims.

[0288] A computer program including instructions is also provided, which, when executed by a processor 310 of a wireless device, cause the processor 310 to perform the method according to any of the foregoing embodiments.

[0289] refer to Figure 8 This illustrates a method performed by a network node (400) according to some of the foregoing embodiments. The method performed by the network node (400) is used to receive a CSI report from a wireless device (300) (such as a UE or IoT device) comprising at least two groups of receive (Rx) ports, wherein the Rx port groups include one or more antenna ports for wireless reception at the wireless device. The method includes: Send (801) configuration for Channel State Information (CSI) reports to the wireless device. To enable wireless devices to: One or more CSIs are determined based on the configuration used for CSI reporting, wherein each of the one or more CSIs is associated with an Rx port group in the at least two Rx port groups. Generate a CSI report that includes one or more of the CSIs, and Uplink control information (UCI), including CSI reports, is received (802) from a radio device (300) (such as a UE) via the uplink (UL) channel.

[0290] refer to Figure 9 This illustrates a method performed by a network node (400) according to some of the foregoing embodiments. The method includes: Send (901) configuration for Channel State Information (CSI) reports to the wireless device. To enable wireless devices to: One or more CSIs are determined based on the configuration used for CSI reporting, where each CSI is associated with UE capability information. Generate a CSI report that includes one or more of the CSIs, and Uplink control information (UCI), including CSI reports, is received from the wireless device via the uplink (UL) channel (902).

[0291] In this invention, CSI reports can be used interchangeably with CSI feedback reports.

[0292] refer to Figure 10This illustrates a method performed by a network node (400) according to some of the foregoing embodiments for receiving a UE capability report from a wireless device in a wireless communication system. The method includes: Receive (1001) UE capability report from wireless device (300), wherein the UE capability report includes information relating to at least two receive (Rx) port groups or the number of Rx port groups of the wireless device.

[0293] In some embodiments, information related to the two Rx port groups may be in the form of the number of layers supported by each Rx port group, the number of ports configured for each Rx port group, etc. Information related to the number of Rx port groups may be in the form of the number of SRS resource sets, the number of simultaneous PDSCHs that can be scheduled, etc.

[0294] A network node is also provided for performing the aforementioned process or method steps executed by the network node. Figure 4 A block diagram depicting a network node 400 is shown. The network node 400 includes a processor 410 or processing circuitry or processing module or processing device 410; receiver circuitry or receiver module 440; transmitter circuitry or transmitter module 450; memory module 420; and transceiver circuitry or transceiver module 430, which may include transmitter circuitry 450 and receiver circuitry 440. The network node 400 also includes an antenna system 460, which includes antenna circuitry for transmitting / receiving signals to / from wireless devices. The antenna system employs beamforming as described above.

[0295] Network node 400 can belong to any wireless access technology that supports beamforming technology, including 4G or LTE, LTE-A, 5G, advanced 5G, or combinations thereof. The network device, including a processor and memory, contains instructions executable by the processor, thereby enabling network node 400 to operate or be configured to perform any of the embodiments relating to network node 400 as described above. In some embodiments, the network node is a gNB.

[0296] Processing module / circuit 410 includes a processor, microprocessor, application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), etc., and may be referred to as a "processor". Processor 410 controls the operation of network nodes and their components. Memory (circuit or module) 420 includes random access memory (RAM), read-only memory (ROM), and / or another type of memory to store data and instructions usable by processor 410. Generally, it should be understood that in one or more embodiments, network nodes include fixed or programmable circuitry configured to perform the operations of any of the embodiments disclosed herein.

[0297] In at least one such example, processor 410 includes a microprocessor, microcontroller, DSP, ASIC, FPGA, or other processing circuitry configured to execute computer program instructions from a computer program stored in or on a non-transitory computer-readable medium accessible to the processing circuitry. Here, "non-transitory" does not necessarily mean permanent or immutable storage and may include storage in working or volatile memory, but the term does indeed imply at least some persistent storage. The execution of the program instructions specifically tunes or configures the processing circuitry to perform the operations disclosed herein in relation to the wireless device. Furthermore, it should be understood that wireless device 400 may include additional components. Network node 400 may also be considered a transmit-receive point (TRP).

[0298] Network node 400 executes instructions contained in memory 420 via processor 410, thereby enabling network node 400 to perform any of the aforementioned embodiments in relation to actions performed by the network node.

[0299] A computer program including instructions is also provided, which, when executed by a processor 410 of a network node, cause the processor 410 to perform a method according to some embodiments.

[0300] As described above, several advantages of the embodiments described in this disclosure are achieved, including new modes of operation for wireless devices and use cases for network scheduling, while reusing / utilizing existing information from the wireless device or setting new reporting volumes from the wireless device.

[0301] Throughout this specification, the use of the terms "an example" or "exemplary" means that a particular feature, structure, or characteristic described in connection with that example is included in at least one embodiment of the art. Therefore, the phrase "in an example" or the word "exemplary" appearing in various places throughout this specification does not necessarily refer to the same embodiment.

[0302] In this disclosure, the terms “comprising” or “including” are used in a non-limiting sense, meaning “consisting of at least…”. Although specific terms may be used herein, they are used only in a general and descriptive sense and are not for limiting purposes. The embodiments described herein can be applied to any wireless system, including LTE or 4G, LTE-A (or LTE-Advanced), 5G, advanced 5G, WiMAX, WiFi, satellite communications, TV broadcasting, etc.

Claims

1. A method performed by a wireless device (300) comprising at least two groups of receive (Rx) ports, wherein, Each of the at least two Rx port groups includes one or more antenna ports for wireless reception at the wireless device, the method comprising: Receive (501) configuration for Channel State Information (CSI) reporting from network node (400). Based on the configuration for CSI reporting, one or more CSIs are determined (502), wherein each of the one or more CSIs is associated with an Rx port group in the at least two Rx port groups. Generate (503) a CSI report including one or more of the CSIs, and Report to the network node (504) or send the CSI report.

2. The method according to claim 1, wherein, The total number of Rx antenna ports of the wireless device The number is even, and the number of Rx port groups at the wireless device is 2, such that each Rx port group includes One Rx antenna port.

3. The method according to claim 1 or 2, further comprising: Use User Equipment (UE) Capability Reports to report information related to the number of Rx Port Groups and / or Rx Port Groups at the wireless device.

4. The method according to any one of claims 1 to 3, further comprising: Report information about multiple sets of UL ports or multiple sets of downlink (DL) receive layers that can be supported by the wireless device in the uplink (UL) resource or UL transport configuration.

5. The method according to claim 4, wherein, The information is used to infer the number of Rx port groups that the wireless device includes or supports.

6. The method according to any one of claims 1 to 5, wherein, The CSI report includes at least two CSIs, wherein the first CSI and Each transport layer is associated with it, and the second CSI is associated with it. Each transport layer is associated with it.

7. The method according to claim 4, wherein, When the information includes the UL port corresponding to the uplink resource When a value is specified, the wireless device includes... One transmit (Tx) port group and One Rx port group.

8. The method according to any one of claims 1 to 7, further comprising: Report information to the network node about the transmit (Tx) or uplink antenna port used for uplink transmission at the wireless device.

9. The method according to any one of claims 1 to 8, wherein, The wireless device and Each Tx port group is associated with or supports There are 1 Tx port group, and there is a one-to-one association between the Rx port group and the Tx port group.

10. The method according to any one of claims 1 to 9, wherein, The CSI in one or more of the CSIs includes at least a value for a wideband channel quality indicator (CQI) or a subband CQI.

11. The method according to any one of claims 1 to 10, wherein, One or more CSIs are associated with a value or parameter that is associated with the number of SRS ports or the number of SRS resources / resource sets of a probe reference signal (SRS) resource or resource set, wherein the value or parameter is a UE capability value or parameter.

12. The method according to any one of claims 1 to 11, wherein, The CSIs in the one or more CSIs include at least a rank indicator (RI) and a channel quality indicator (CQI).

13. The method according to claim 3, wherein, The UE capability report includes information relating to at least one of the following UE capability parameters / values: The number of layers or the maximum number of layers (e.g., the number of layers used for downlink / uplink (DL / UL) transmission, the number of layers used for physical downlink shared channel / physical uplink shared channel (PDSCH / PUSCH), etc.). The number of Sound Reference Signal (SRS) ports or the maximum number of SRS ports. The minimum value for the number of SRS resource sets or the maximum number of SRS resource sets is 2.

14. The method according to claim 3, further comprising: Report or send the UE capability report to the network node, wherein the UE capability report includes parameters relating to at least one of the following: The number of Rx port groups or Rx / RF processing chains at the wireless device. The number of SRS resources or SRS resource sets The maximum number of SRS resources or SRS resource sets. The number of PDSCH / PUSCH that can be scheduled in cases of partial / complete overlap in time and / or frequency. The number of possible values ​​of the index / indicator that CSI can associate with. The number of possible values ​​of the index / indicator that can be associated with the codeword of PDSCH / PUSCH. The number of possible values ​​of the index / indicator that can be associated with the code division multiplexing (CDM) group of the PDSCH / PUSCH demodulation reference signal (DMRS) port. The number of possible values ​​of the index / indicator that can be associated with the downlink control information (DCI) used to schedule PUSCH / PDSCH.

15. The method according to any one of the preceding claims, wherein, The CSI report includes indicators or indexes associated with the CSI in the CSI report, which indicate or map to the following items: Rx port group Index corresponding to UE capability parameters, or UE capability parameters / values.

16. The method according to any one of the preceding claims, wherein, The CSI includes at least one indicator that indicates the rank or number of transport layers, or the number of layers of the precoder indicated by the CSI.

17. The method according to any one of the preceding claims, wherein, The CSI report includes at least two CSIs, wherein the first CSI is associated with a first Rx port group or a first UE capability parameter / value at the wireless device, and the second CSI is associated with a second Rx port group or a second UE capability parameter / value at the wireless device, and so on.

18. The method according to claim 17, wherein, For the The calculation of the first CSI, interference from the transport layer and the first The CSI is associated with the first one, wherein the first one is associated with the second one. The and the first Each CSI is associated with a different Rx port group or a different UE capability parameter / value, and .

19. The method according to claim 17, wherein, For CSI calculation, at least one of the following conditions must be met: Apart from the Rx port group or UE capability parameters / values ​​associated with the CSI, there is no interference from the transport layer associated with other Rx port groups or other UE capability parameters / values. DL transmissions to the wireless device are only scheduled to the Rx port group or UE capability parameters / values ​​associated with the CSI.

20. The method according to any one of the preceding claims, wherein, The CSI report includes One CSI, and among them When the determination of the When CSI is one of the CSIs, except for the one mentioned above. Apart from the Rx port group or UE capability parameter / value associated with the CSI in each CSI, there is no interference from layers associated with other Rx port groups or other UE capability parameters / values, and When the determination of the When performing CSI within a CSI, interference exists from the following: The transport layer associated with at least one other Rx port group or other UE capability parameter / value, which is different from the one mentioned above. The Rx port group or UE capability parameter / value associated with the CSI in each CSI, or The transport layer associated with at least one other CSI included in the CSI report.

21. The method according to claim 20, wherein, The value is configured or indicated to the UE by the network node, and The value is either a fixed value or indicated to the UE by the network node.

22. The method according to claim 20 or 21, wherein, At least one of the following conditions applies: The value is at least one of the following: {0, 1, 2, 3, 4}. The value is at least one of the following: {1, 2}.

23. The method according to any one of the preceding claims further comprises: Obtain an indicator that indicates one or more Rx port groups or one or more UE capability parameters / values, and provide a CSI on the indicated one or more Rx port groups or one or more UE capability parameters / values ​​in the CSI report.

24. A method performed by a wireless device, the method comprising generating a (701) UE capability report, wherein, The UE capability report includes information relating to at least two receive (Rx) port groups or the number of Rx port groups of the wireless device, and is reported (702) to or sent to the network node (400).

25. The method according to claim 24, wherein, The Rx port group includes one or more antenna ports for wireless reception at the wireless device.

26. The method according to claim 3 or 24, wherein, The UE capability report includes at least one of the following: Values: number of layers or maximum number of layers, number of SRS resource sets or resources, maximum number of SRS resource sets or resources, number of SRS ports of SRS resources or SRS resource sets, and maximum number of SRS ports of SRS resources or SRS resource sets.

27. The method according to claim 26, wherein, The The value indicates the number of Rx port groups at the wireless device and / or the Each of the values ​​is associated with a group of Rx ports at the wireless device.

28. The method according to claim 3 or any one of 24 to 27, wherein, The UE capability report also includes parameters relating to at least one of the following: The number of SRS resources or SRS resource sets The maximum number of SRS resources or SRS resource sets. The number of PDSCH / PUSCH that can be scheduled in cases of partial / complete overlap in time and / or frequency. The number of possible values ​​of the index / indicator that CSI can associate with. The number of possible values ​​of the index / indicator that can be associated with the codeword of PDSCH / PUSCH. The number of possible values ​​of the index / indicator that the CDM group of the DMRS port of PDSCH / PUSCH can be associated with. The number of possible values ​​of the index / indicator that the DCI used to schedule PUSCH / PDSCH can be associated with.

29. The method according to any one of the preceding claims further comprises: DMRS port executing PDSCH A CDM group and the wireless device at One Rx port group or The association or mapping between UE capability parameters / values.

30. The method of claim 29, further comprising one of the following: The DMRS / antenna ports associated with CDM group '0' of the PDSCH are associated / mapped with the first Rx port group or the first UE capability parameter / value, and the DMRS / antenna ports associated with CDM group '1' of the PDSCH are associated / mapped with the second Rx port group or the second UE capability parameter / value. The DMRS / antenna port associated with CDM group '1' of the PDSCH is associated / mapped with the first Rx port group or the first UE capability parameter / value, and the DMRS / antenna port associated with CDM group '0' of the PDSCH is associated / mapped with the second Rx port group or the second UE capability parameter / value.

31. The method according to any one of the preceding claims further comprises one of the following: Associate / map the first codeword / transmission block of the PDSCH with the first Rx port group or the first UE capability parameter / value, and associate / map the second codeword / transmission block of the PDSCH with the second Rx port group or the second UE capability parameter / value. Associate / map the second codeword / transmission block of the PDSCH with the first Rx port group or the first UE capability parameter / value, and associate / map the first codeword / transmission block of the PDSCH with the second Rx port group or the second UE capability parameter / value.

32. The method according to any one of the preceding claims further comprises: Associate / map the PDSCH with an Rx port group or UE capability parameter / value, wherein the association / mapping is determined by at least one of the following: Indications on the Physical Downlink Control Channel / Downlink Control Information (PDCCH / DCI) used for scheduling the PDSCH The parameters or configurations associated with the PDCCH / DCI used to schedule the PDSCH. Reservation rules.

33. The method of claim 32, further comprising receiving at least two PDCCH / DCI, wherein Each PDCCH / DCI is used to schedule PDSCH and is associated with a different value of an index or indicator. The scheduled PDSCHs partially or completely overlap in time and / or frequency, and The PDSCH scheduled by the first PDCCH / DCI is associated with the first Rx port group or the first UE capability parameter / value, and the PDSCH scheduled by the second PDCCH / DCI is associated with the second Rx port group or the second UE capability parameter or value, and so on.

34. The method of claim 33, wherein, The first PDCCH / DCI is associated with a first value (e.g., '0') of the index or indicator, and the second PDCCH / DCI is associated with a second value (e.g., '1') of the index or indicator, and so on, wherein... Provide an index or indicator in the fields of the PDCCH or DCI to indicate / execute the association, or The association is indicated / executed by configuring an index or indicator for the PDCCH or DCI at a higher level (e.g., providing an index or indicator in the configuration of the search space or control resource set (CORESET) associated with the PDCCH or DCI).

35. The method according to claim 33 or 34, wherein, The at least two PDCCH / DCIs are received on the same CORESET or different CORESETs, and the value of an index or indicator in a field of one of the PDCCH / DCIs is different from the value of an index or indicator in a field of any other PDCCH / DCI.

36. The method according to claim 33 or 34, wherein, The at least two PDCCH / DCIs are received on the same CORESET or different CORESETs, and the value of an index or indicator associated with one of the PDCCH / DCIs via a higher layer is different from the value of an index or indicator associated with any other PDCCH / DCI via a higher layer (e.g., the CORESET pool index configured for the CORESET associated with the PDCCH / DCI).

37. The method according to any one of claims 33 to 36, wherein, The at least two PDCCH / DCI are associated with different CDM groups of the DMRS ports of the PDSCH.

38. The method according to any one of the preceding claims further comprises: Receive PDSCH, one or more DMRS ports of PDSCH, or codewords of PDSCH on one or more antenna ports of an Rx port group associated with UE capability parameters / values, wherein the UE capability parameters / values ​​are implicitly (e.g., via fixed rules in the communication specification) or explicitly (e.g., via network node signaling via the PHY layer and / or higher layers) associated with the PDSCH or the DMRS port of the PDSCH or the codewords of the PDSCH.

39. The method according to any one of the preceding claims further comprises: Received from network node: Configuration or indication of at least one or more Transport Configuration Indication (TCI) states for downlink reception, wherein the configuration or indication is received via the PHY layer or a higher layer, and The mapping / association of one or more TCI states to one or more Rx port groups or UE capability parameters / values ​​at the radio device, wherein the mapping / association is received via the PHY layer or higher layers (e.g., Radio Resource Control (RRC) or Media Access Control-Control Element (MAC-CE)). Apply the configuration or indication to the association / mapping of the TCI state.

40. The method of claim 39, further comprising: Receive PDCCH / DCI signaling, Media Access Control-Control Element (MAC-CE) messages, or higher-layer configurations (e.g., RRC), wherein the PDCCH / DCI signaling, the MAC-CE messages, or the higher-layer configurations will be configured at least for downlink reception. Each TCI state is associated with / mapped to Each Rx port group or UE capability parameter / value is mapped to or associated with an Rx port group or UE capability parameter / value.

41. The method according to any one of the preceding claims further comprises: Receive configurations or indications of at least one or more TCI states for downlink reception from network nodes via the PHY layer or higher layers, and The one or more TCI states are mapped / associated to one or more Rx port groups or UE capability parameters / values ​​at the wireless device, wherein each TCI state is mapped to or associated with an Rx port group or UE capability parameter / value.

42. The method according to any one of the preceding claims further comprises: Receive a MAC-CE message, which maps one or more TCI states to code points in the TCI field of the PDCCH / DCI, wherein one or more TCI states are mapped to code points, and if more than one TCI state is mapped to a code point, the first TCI state mapped to the code point is associated with a first Rx port group or UE capability parameter / value, and the second TCI state mapped to the code point is associated with a second Rx port group or UE capability parameter or value, and so on.

43. The method according to any one of the preceding claims further comprises: Received from network nodes via the PHY layer or higher layers Configuration or indication of each TCI status Map / associate the first TCI state with at least one of the following: The first CDM group of the DMRS port of PDSCH. The first codeword of PDSCH The first transmission timing of PDSCH At least one repeat / transmission attempt of the PDSCH transport block / codeword, and Map / associate the second TCI state with at least one of the following: The second CDM group of the DMRS port of PDSCH. The second codeword of PDSCH The second transmission timing of PDSCH, or At least one repeat / transmission attempt of other PDSCH transport blocks / codewords besides those mapped to the first TCI state. And so on.

44. The method according to claim 43, wherein, The values ​​of fields in the PDCCH / DCI used for scheduling PDSCH or fixed rules in the communication specification indicate / determine the... Mapping / association of each TCI state to at least one of the following: One Rx port group or Each UE capability parameter / value DMRS port of PDSCH One CDM group, PDSCH transport block / codeword repetition / transmission attempt A number of distinct sets, each set including at least one repeat / transmission attempt, and PDSCH Each code character.

45. The method according to any one of the preceding claims further comprises: Receive at least two PDCCH / DCIs, where Each PDCCH / DCI is used to schedule PDSCH. The scheduled PDSCHs partially or completely overlap in time and / or frequency, and Each PDSCH is associated with a TCI state, which is associated with different of the following: The value of the index / indicator, The Rx port group at the wireless device, or UE capability parameters / values.

46. ​​The method according to any one of the preceding claims further comprises: Apply the TCI state to the following items: PDSCH's DMRS port PDSCH transport block / codeword, The timing of PDSCH transmission, or PDSCH transport block / codeword transport attempts / repeats The TCI state is associated with the DMRS port, codeword, transmission timing, or transmission attempt / repetition of the PDSCH.

47. The method according to any one of the preceding claims, further comprising receiving at least one of the following on an Rx port group associated via a UE capability parameter / value: PDSCH's DMRS port PDSCH transport block / codeword PDSCH transmission timing, or PDSCH transmission attempt / repeat in, The association is either an implicit association (e.g., using fixed rules in the communication specification) or an explicit association from network signaling via the PHY layer or higher layers.

48. A method, performed by a network node (400), for receiving a channel state information (CSI) report from a wireless device comprising at least two groups of receive (Rx) ports, wherein, The Rx port group includes one or more antenna ports for wireless reception at the wireless device, and the method includes: Send (801) configuration for Channel State Information (CSI) reporting to the wireless device (300). So that the wireless device can: One or more CSIs are determined based on the configuration used for CSI reporting, wherein each of the one or more CSIs is associated with an Rx port group in the at least two Rx port groups. Generate a CSI report that includes one or more of the CSIs, and Uplink control information (UCI) including the CSI report is received (802) from the wireless device (300) via the uplink (UL) channel.

49. A method, performed by a network node (400), for receiving a UE capability report from a wireless device (300) in a wireless communication system, the method comprising: The wireless device (300) receives (1001) a UE capability report, wherein the UE capability report includes information relating to at least two receive (Rx) port groups or the number of Rx port groups of the wireless device.

50. A network node (400) includes a processor (410) and a memory (420) containing instructions executable by the processor (410), wherein the network node (400) is operable to perform the method according to claim 48 or 49.

51. The network node (400) according to claim 50, wherein, The network node is a gNB.

52. A wireless device (300) includes a processor (310) and a memory (320) containing instructions executable by the processor (310), thereby enabling the wireless device (300) to perform the method according to any one of claims 1 to 47.

53. The wireless device according to claim 52, wherein, The wireless device is a UE.

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