User equipment and network node

Abstract

The disclosure relates to user equipment and a network node. A user equipment, UE, comprises means for determining an antenna port group calibration capability of the UE, where the antenna port group calibration capability depends on at least one of: a phase calibration or an amplitude calibration of one or more antenna port groups of the UE.

Description

Technical Field

[0001] Examples disclosed herein relate to user equipment and network nodes. Some examples relate to user equipment and network nodes used for non-codebook-based uplink transmissions. Background Technology

[0002] In uplink transmission, precoding is applied to the signal to compensate for the response (time domain) or transfer function (frequency domain) of the uplink channel and transmission circuitry system.

[0003] For uplink transmission, two transmission schemes are provided: codebook-based transmission and non-codebook-based transmission. Summary of the Invention

[0004] According to various, but not necessarily all, examples, a user equipment (UE) is provided that includes components for determining the antenna port group calibration capability of the UE, wherein the antenna port group calibration capability depends on at least one of the following: phase calibration or amplitude calibration of one or more antenna port groups of the UE.

[0005] In some, but not all, examples, determining multi-antenna port calibration capability includes generating a multi-antenna port calibration capability indicator associated with a non-codebook-based precoding used for uplink communication between the UE and the network, wherein the multi-antenna port calibration capability indicator indicates the UE's ability to perform relative phase and / or amplitude calibration between multiple antenna ports of the UE.

[0006] In some, but not all, examples of determining multi-antenna port calibration capability include using one or more antenna ports to measure one or more reference signals.

[0007] In some, but not all, examples, determining multi-antenna port calibration capability involves measuring the symbols of one or more reference signals.

[0008] In some, but not all, examples, determining multi-antenna port calibration capability includes comparing a measurement of a first measurement reference signal with a measurement of a second measurement reference signal, wherein the first reference signal is a downlink reference signal and the second reference signal is at least one of the following: a different measurement reference signal; a reference signal measured at an antenna port different from the first measurement reference signal; an uplink reference signal; or an expected reference signal.

[0009] In some, but not all, examples, determining multi-antenna-port precoding values ​​includes determining the difference between one or more dynamic characteristics of two or more antenna ports based at least in part on a comparison of measurements of one or more downlink reference signals measured at the first antenna port and the second antenna port.

[0010] In some, but not all, examples, determining multi-antenna port calibration capability includes: determining, at least in part, based on a comparison of measurements of one or more uplink reference signals measured at a first antenna port with measurements of one or more uplink reference signals measured at a second antenna port, the difference between one or more dynamic characteristics of the first antenna port and one or more corresponding dynamic characteristics of the second antenna port among the two or more antenna ports.

[0011] In some, but not all, examples, one or more dynamic characteristics include at least one of the following: directivity; complex impedance; angular direction of maximum gain; phase; amplitude.

[0012] In some, but not all, examples, the user equipment includes: a component for identifying one or more valid combinations of two or more antenna ports based at least in part on a comparison of measurements of a first measurement reference signal and measurements of a second measurement reference signal.

[0013] In some, but not all, examples, the identification of one or more valid combinations of two or more antenna ports is based at least in part on: for multiple antenna ports of the two or more antenna ports, a comparison of the measured downlink reference signal at the antenna port with the measured uplink reference signal at one or more antenna ports.

[0014] In some, but not all, examples, if the UE is able to perform relative phase and / or amplitude calibration between two or more antenna ports, then the combination of two or more antenna ports is valid and its calibration capability is fully calibrated.

[0015] In some, but not all, examples, if the UE is able to perform relative phase and / or amplitude calibration between subsets of two or more antenna ports, then the combination of two or more antenna ports is valid and its calibration capability is partial calibration.

[0016] In some, but not all, examples, if the UE cannot perform relative phase and / or amplitude calibration between two or more antenna ports within an antenna port group, then the combination of two or more antenna ports is invalid and its calibration capability is uncalibrated.

[0017] In some, but not all, examples, the user equipment includes: a component for determining one or more preferred combinations of one or more antenna ports based at least in part on one or more valid combinations identified in two or more antenna ports.

[0018] In some, but not all, examples, the user equipment includes: a component for determining one or more candidate combinations of one or more antenna ports based at least in part on one or more valid combinations identified in two or more antenna ports.

[0019] In some, but not all, examples, determining one or more preferred combinations of one or more antenna ports, and / or one or more candidate combinations of one or more antenna ports, is based on the calibration capability of one or more combinations of one or more antenna ports.

[0020] In some, but not all, examples, the components for determining one or more preferred combinations of one or more antenna ports, and / or the components for determining one or more candidate combinations of one or more antenna ports, are configured to: select one or more valid and fully calibrated combinations of one or more antenna ports as preferred and / or candidate combinations, prior to one or more valid and partially calibrated combinations of one or more antenna ports; and / or select one or more valid and partially calibrated combinations of one or more antenna ports as preferred and / or candidate combinations, prior to one or more invalid and uncalibrated combinations of one or more antenna ports.

[0021] In some, but not all, examples, the components for determining one or more preferred combinations of one or more antenna ports, and / or the components for determining one or more candidate combinations of one or more antenna ports, are configured to: measure the RSRP of one or more valid combinations of one or more antenna ports; and, based on the measured RSRP, determine one or more preferred combinations of one or more antenna ports, and / or one or more candidate combinations of one or more antenna ports.

[0022] In some, but not all, examples, the user equipment includes: a component for associating one or more preferred combinations and / or one or more candidate combinations of antenna ports with one or more groups of antenna ports, wherein the group of antenna ports includes at least one or more combinations of its associated antenna ports.

[0023] In some, but not all, examples, the user equipment includes: a component for determining an intra-group calibration indicator for one or more antenna port groups in an antenna port group, wherein the intra-group calibration indicator indicates: the ability of the UE to perform relative phase and / or amplitude calibration between multiple antenna ports within the antenna port group based on the calibration capability of one or more combinations of antenna ports associated with the antenna port group.

[0024] In some, but not all, examples, the user equipment includes a component for identifying an antenna port group as having in-group calibration capabilities that are fully calibrated, partially calibrated, or uncalibrated, based on the calibration capabilities of one or more combinations of associated antenna ports.

[0025] In some, but not all, examples, the user equipment includes: a component for determining an inter-group calibration indicator for a combination of two or more antenna port groups, wherein the inter-group calibration indicator indicates: the UE's ability to perform relative phase and / or amplitude calibration between two or more antenna port groups based on the calibration capability of one or more combinations of antenna ports associated with the two or more antenna port groups.

[0026] In some, but not all, examples, generating multi-antenna port calibration capability indicators includes generating indicators for: one or more antenna port groups; intra-group calibration indicators for one or more antenna port groups; and inter-group calibration indicators for one or more combinations of one or more antenna port groups.

[0027] In some, but not all, examples, the user equipment includes components for: obtaining an indication for initiating a determination of the multi-antenna port calibration capability; and, based on the indication, initiating the determination of the multi-antenna port calibration capability.

[0028] In some, but not all, examples, the user equipment includes components for receiving instructions from network nodes.

[0029] In some, but not all, examples, the user equipment includes a component for generating an indication based on the fulfillment of a trigger condition.

[0030] According to various, but not all, embodiments, an apparatus is provided comprising: at least one processor; and at least one memory including computer program code; at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to perform at least a portion of one or more methods described herein.

[0031] According to various, but not necessarily all, embodiments, an apparatus is provided comprising: components for performing at least a portion of one or more methods described herein. The description of functions and / or actions should also be considered as disclosing any components suitable for performing those functions and / or actions. The functions and / or actions described herein can be performed using any suitable method and in any suitable manner.

[0032] Examples as claimed in the appended claims are provided according to various, but not necessarily all, embodiments.

[0033] While the examples and optional features of this disclosure have been described separately, it should be understood that their availability in all possible combinations and arrangements is included within this disclosure. It should be understood that various examples of this disclosure may include any or all of the features described with respect to other examples of this disclosure, and vice versa. It should also be understood that any one or more features in any combination may be implemented / included / performable by means of an apparatus, method, and / or computer program instructions as needed and appropriately. The description of a function should also be considered as disclosing any components suitable for performing that function. Attached Figure Description

[0034] Some examples will now be described with reference to the accompanying drawings, in which:

[0035] Figure 1 Examples of the topics described in this article are shown;

[0036] Figure 2A and Figure 2B Another example of the topics described in this article is shown;

[0037] Figure 3 Examples of the topics described in this article are shown;

[0038] Figure 4A and Figure 4B Another example of the topics described in this article is shown;

[0039] Figure 5A and Figure 5B Another example of the topics described in this article is shown;

[0040] Figure 6 Another example of the topics described in this article is shown;

[0041] Figure 7 Another example of the topics described in this article is shown;

[0042] Figure 8A and Figure 8B Another example of the topics described in this article is shown;

[0043] Figure 9A and Figure 9B Another example of the topics described in this article is shown;

[0044] Figure 10 Another example of the topics described in this article is shown; and

[0045] Figure 11 Another example of the topics described in this article is shown.

[0046] The accompanying drawings are not necessarily drawn to scale. For clarity and simplicity, some features and views in the drawings may be shown schematically or enlarged to scale. For example, the dimensions of some elements in the drawings may be enlarged relative to other elements to aid illustration. Similar reference numerals are used in the drawings to indicate similar features. For clarity, not all reference numerals need to be shown in all drawings. Detailed Implementation

[0047] The accompanying figure illustrates a user equipment (UE) including: components for transmitting to the network an antenna port group calibration capability associated with uplink communication between the UE and the network based on non-codebook precoding, wherein the antenna port group calibration capability indicates information associated with at least one of the following: phase calibration or amplitude calibration of one or more antenna port groups of the UE.

[0048] This provides the technical benefits of enabling efficient utilization of 6G non-codebook-based operations with varying vendor-specific transmission (TX) calibration capabilities. This can be enabled in operations such as SRS, PUSCH, and PUCCH.

[0049] The device can be used to notify the network of calibration capabilities based on non-codebook precoding to facilitate uplink communication between the UE and the network.

[0050] Figure 1 An example of a network 100 comprising multiple network entities, including a terminal device 110, a node device 120, and one or more network devices 130, is illustrated. The terminal device 110 and the node device 120 communicate with each other 124. One or more network devices 130 communicate with the node device 120 128.

[0051] In some examples, one or more network devices 130 communicate with terminal device 110. In some examples, one or more network devices 130 may communicate with each other. In some examples, one or more node devices 120 may communicate with each other.

[0052] Network 100 may be a cellular network comprising multiple cells 122, each cell 122 being served by node device 120. In this example, the interface between terminal device 110 and node device 120 defining cell 122 is wireless interface 124.

[0053] Node device 120 includes one or more cellular radio transceivers. Terminal device 110 includes one or more cellular radio transceivers.

[0054] In the illustrated example, cellular network 100 is a 3GPP network, where terminal device 110 is a user equipment (UE), and node device 120 may be an access node such as a base station.

[0055] User equipment includes mobile devices. Where a user equipment is referenced, the reference should, to the extent possible, include and encompass references to mobile devices.

[0056] In some examples, during operation, user equipment 110 includes a mobile device that includes a smart card, such as a subscriber identification module (SIM), for authentication / encryption, etc. In some examples, during operation, user equipment 110 includes a mobile device that includes a circuitry system, such as a software SIM, embedded as part of user equipment 110 for authentication / encryption.

[0057] Node device 120 can be any suitable access node, such as a base station or a transmit / receive point. Node device 120 can be a network element responsible for radio transmission and reception to or from UE 110 in one or more cells 122. Node device 120 can be a network element in a radio access network (RAN), an open radio access network (O-RAN), or any other suitable type of network.

[0058] Network device 130 may be part of the core network. Network device 130 may be configured to manage functions related to connectivity for UE 110. For example, network device 130 may be configured to manage functions such as connectivity, mobility, authentication, authorization, and / or other suitable functions. In some examples, network device 130 may include Access and Mobility Management Functions (AMF), and / or User Plane Functions (UPF), or any other suitable entity.

[0059] exist Figure 1 In the example, network device 130 is shown as a single entity. In some examples, network device 130 may be distributed across multiple entities. For example, network device 130 may be cloud-based or distributed in any other suitable manner. Network device 130 may be a core network node.

[0060] For example, network 100 can be a 4G or 5G network. For instance, it can be a New Radio (NR) network using gNBs or eNBs as access nodes 120. New Radio is the 3GPP name for 5G technology. In this case, node device 120 may include gNodeBs (gNBs) 120 configured to provide user plane and control plane protocol termination to UE 110, and / or perform any other suitable functions. gNBs 120 interconnect with each other via X2 / Xn interfaces 126. gNBs are also connected to network device 130 via N2 interfaces 128. gNBs can be connected to an AMF or any other suitable network device 130. In other examples, other types of networks and interfaces can be used. Other types of networks may include next-generation mobile and communication networks, such as 6G networks.

[0061] There is ongoing work supporting simultaneous transmission (TX) in the uplink (UL) to enable UL MIMO operation.

[0062] In UL TX, precoding is applied to the signal to compensate for the response (time domain) or transfer function (frequency domain) of the UL channel and TX circuit system.

[0063] For UL TX, two transmission schemes are provided: codebook-based transmission and non-codebook-based transmission. The transmission scheme used determines how the precoding is determined.

[0064] In codebook-based transmission, the network sends a Transmit Precoding Matrix Indicator (TPMI) to the UE to control UL precoding at the UE. Figure 2A The process shown includes:

[0065] At box 202, SRS resource 210 is transmitted from the UE to the network. Depending on the UE's capabilities, the SRS can be transmitted sequentially or simultaneously. However, due to the maximum combined Tx power requirement at the UE, simultaneous transmission of SRS will reduce coverage.

[0066] At box 204, the network estimates the channel based on previous steps and determines the optimal SRS, SRS resource indicator (SRI), and rank.

[0067] At box 206, the network sends SRI, rank, and TPMI to the UE.

[0068] At box 208, at the UE, the PUSCH transmission uses the latest indication for precoding based on the previous steps.

[0069] The drawback of this process is that the UE relies on a predetermined codebook. This codebook is derived under the assumption of a uniform linear array (ULA) of omnidirectional cross-polarized elements on the UE side, resulting in a “beam grid” (GOB) based on the Discrete Fourier Transform (DFT). However, the UE antenna array is not uniform and linear because the antenna pattern has directional variations in gain and phase, and the inter-antenna spacing is rarely half a wavelength (e.g., for 9 GHz, this could be a maximum of 5 wavelengths). This leads to a suboptimal codebook.

[0070] In non-codebook-based transmissions, the precode to be used is determined at the UE using DL CSI-RS and taking advantage of DL-UL reciprocity at the UE TX.

[0071] Figure 2B The process shown is based on the following steps:

[0072] At box 212, CSI-RS is sent from the network to the UE, where the UE estimates the channel and calculates the precoder for UL at the UE.

[0073] At box 214, based on the previous steps, the precoded SRS, together with the weights generated by the UE, is sent to the network in the UL.

[0074] At box 216, the network performs the selection of the best SRS and uses SRI to indicate it to the UE.

[0075] At box 218, at the UE, the PUSCH transmission uses the latest calculated precoding based on the indicated SRI.

[0076] This process assumes complete channel reciprocity between UL and DL. However, the UL phase difference between antenna ports can vary dynamically, independently of the DL phase difference.

[0077] Therefore, in order for the UE to perform non-codebook-based transmission, different UE TX antenna ports must be calibrated in the phase and amplitude domains so that the response / transfer function dependent on the UE can be compensated through precoding.

[0078] In examples where the UL TX antenna configuration is known and unchanged, full calibration in the phase and amplitude domains can be assumed, and therefore non-codebook-based transmissions can be performed.

[0079] In order to support different UL TX antenna configurations with different calibration assumptions, information about the UE's ability to calibrate the TX circuitry system response / transfer function is required.

[0080] SRS antenna port switching is a prerequisite for codebook-based UL MIMO.

[0081] SRS transmission is also a prerequisite for non-codebook-based UL MIMO. In this case, the UE uses multiple antennas with associated weighting coefficients for each precoded SRS.

[0082] Figure 3 An example of the method is illustrated.

[0083] In the example, Figure 3 This can be seen as illustrating multiple methods. For example, Figure 3 The diagram illustrates one or more actions at multiple actors / entities, and in the example, Figure 3 It can be viewed as a diagram illustrating multiple methods performed by a single actor / entity.

[0084] about Figure 3 One or more of the features discussed can be found in one or more other graphs.

[0085] exist Figure 3 In the example, multiple devices cross and / or via and / or use a network to send and / or receive one or more signals and / or one or more messages. In the example, any suitable form of communication can be used in any suitable network. For example, Figure 1 At least a portion of the network 100 can be used.

[0086] Therefore, in the example, Figure 3 Multiple devices formed about Figure 1 At least a portion of the network 100.

[0087] In the example shown, terminal node 110 and access node 120 send and / or receive one or more signals and / or one or more messages. The access node may include a gNodeB (gNB), and terminal node 110 may include UE 140.

[0088] In the example, Figure 3 Communication and / or transmission between the elements shown can be carried out via any number of intermediary elements (including no intermediary elements).

[0089] Despite Figure 3 The example illustrates a terminal node 110, but in this example, any suitable number of terminal nodes 110 (e.g., UEs) may be included. Similarly, in this example, any suitable number of access nodes 120 may be included.

[0090] As described herein, descriptions of functions and / or actions should also be considered as publicly enabling, and / or causing, and / or controlling the function and / or action. For example, descriptions of sending information should also be considered as publicly enabling, and / or causing, and / or controlling the sending / transmission of information.

[0091] For example, a description of a means of transmitting information (such as UE 140) should also be regarded as disclosing at least one controller of the means of transmitting information, enabling, and / or causing, and / or controlling the means of transmitting information.

[0092] In the example shown, the location of the boxes indicates the entity performing (multiple) functions and / or (multiple) actions. For example, box 302 is performed by terminal node 110 (such as UE 140).

[0093] because Figure 3 The diagram illustrates one or more actions / features that are sent, so Figure 3 The diagram illustrates the corresponding receive / enable and / or enable receive(multiple) actions / (multiple) features.

[0094] for Figure 3 Further discussion will consider that terminal node 110 is UE 140.

[0095] From the perspective of UE 140, at block 302, the method includes: sending to the network an antenna port group calibration capability associated with a non-codebook-based precoding used for uplink communication between UE 140 and the network. The antenna port group calibration capability may also be referred to as an antenna port group calibration capability indicator.

[0096] Antenna port group calibration capability indicates the ability of UE 140 to perform relative phase and / or amplitude calibration among multiple antenna ports 300 of UE 140.

[0097] Figure 4A and Figure 4B An example of a UE 140 including an antenna port group 350 is illustrated. The antenna port group 350 may include one or more antenna ports 300.

[0098] In some, but not all, examples, antenna port 300 is a Tx antenna port. In other examples, antenna port 300 includes both Tx and Rx antenna ports.

[0099] exist Figure 4A In the example, UE 140 includes three antenna port groups 350. Antenna port groups 350_1 and 350_2 each include two antenna ports 300, and antenna port 350_3 includes one antenna port.

[0100] exist Figure 4B In the example, UE 140 includes 12 antenna port groups 350, and all antenna port groups 350 include a single antenna port (not shown).

[0101] It should be understood that it is possible for an antenna port group 350 to have a different number of antenna ports 300 than the antenna port group shown.

[0102] like Figure 4A and Figure 4B As shown, parameters D_G-H and D_G-V define the distance between antenna port groups in the horizontal and vertical domains, respectively.

[0103] Reference Figure 3 In some, but not all, examples, for an antenna port group 350 comprising multiple antenna ports 300, the antenna port group calibration capability indicates the UE 140’s ability to perform relative phase and / or amplitude calibration between the antenna ports 300 of the antenna port group 350.

[0104] In the example, the antenna port group calibration capability indicates that antenna port group 350 and / or the combination of antenna port group 350 is fully calibrated, partially calibrated, or uncalibrated.

[0105] If UE 140 is able to perform relative phase and / or amplitude calibration between antenna ports 300 of antenna port group 350, or a combination of two or more antenna port groups 350, then antenna port group 350 or a combination of two or more antenna port groups 350 is fully calibrated.

[0106] If UE 140 is able to perform relative phase and / or amplitude calibration between a subset of antenna ports 300 of antenna port group 350, or between two or more combinations of antenna port groups 350, then antenna port group 350 or combination of two or more antenna port groups 350 is partially calibrated.

[0107] If UE 140 cannot perform relative phase and / or amplitude calibration between antenna port 300 of antenna port group 350, or between two or more combinations of antenna port groups 350, then antenna port group 350 or the combination of two or more antenna port groups 350 is uncalibrated.

[0108] In some, but not all, examples, relative phase and / or amplitude calibration is performed between antenna ports 300 and / or antenna port groups 350 to compensate for user equipment-related transfer functions in the phase and / or time domains associated with different antenna ports 300 and / or different antenna port groups 350.

[0109] Therefore, if it is possible to compensate the transfer function associated with the user equipment in the phase and / or time domain associated with different antenna ports 300 and / or different antenna port groups 350, then UE 140 is able to perform relative phase and / or amplitude calibration between antenna ports 300 and / or antenna port groups 350.

[0110] In some, but not all, examples, relative phase calibration involves delivering multiple timing offsets to multiple antenna ports 300 and / or antenna port groups 350 such that the phase difference between the multiple antenna ports 300 and / or antenna port groups 350 is below a threshold. In the examples, the multiple timing offsets are different timing offsets.

[0111] Therefore, if it is possible to deliver multiple timing offsets to multiple antenna ports 300 and / or antenna port groups 350 such that the phase difference between the multiple antenna ports 300 and / or antenna port groups 350 is below a threshold, then UE 140 is able to perform relative phase calibration between the multiple antenna ports 300 and / or antenna port groups 350.

[0112] In some, but not all, examples, relative amplitude calibration involves delivering multiple power offsets to multiple antenna ports 300 and / or antenna port groups 350 such that the amplitude difference between the multiple antenna ports 300 and / or antenna port groups 350 is below a threshold. In the examples, the multiple power offsets are distinct power offsets.

[0113] Therefore, if it is possible to deliver multiple power offsets to multiple antenna ports 300 and / or antenna port groups 350 such that the amplitude difference between the multiple antenna ports 300 and / or antenna port groups 350 is less than a threshold, then UE 140 is able to perform relative amplitude calibration between the multiple antenna ports 300 and / or antenna port groups 350.

[0114] In some, but not all, examples, the antenna port group calibration capability indicates for multiple antenna port groups 350: the UE 140 performs multiple capabilities to perform relative phase and / or amplitude calibration between antenna ports 300 of multiple antenna port groups 350.

[0115] In some, but not all, examples, the antenna port group calibration capability indicates for each antenna port group 350 the UE 140's ability to perform relative phase and / or amplitude calibration between multiple antenna ports 300 of the antenna port group 350.

[0116] For example, for a first antenna port group 350 including multiple antenna ports 300, the antenna port group calibration capability may indicate that the UE 140 performs a first capability of relative phase and / or amplitude calibration between the antenna ports 300 of the first antenna port group 350, and for a second antenna port group 350 including multiple antenna ports 300, it may indicate that the UE 140 performs a second capability of relative phase and / or amplitude calibration between the antenna ports 300 of the second antenna port group 350.

[0117] In some, but not all, examples, the first antenna port group 350 is different from the second antenna port group 350. For example, the first antenna port group 350 may include an antenna port 300 that is different from the second antenna port group 350, such that there is no overlap between the antenna ports 300 of the first antenna port group 350 and the antenna ports 300 of the second antenna port group 350.

[0118] In some, but not all, examples, the first capability differs from the second capability. For example, the first and / or second capability could be the capability to perform: relative phase calibration instead of relative amplitude calibration; relative amplitude calibration instead of relative phase calibration; relative phase calibration and relative amplitude calibration; or neither relative phase calibration nor relative amplitude calibration. For example, the first and / or second capability could be fully calibrated, partially calibrated, or uncalibrated.

[0119] In some, but not all, examples, the antenna port group calibration capability includes an intra-group calibration indicator. In some, but not all, examples, the intra-group calibration indicator indicates at least one of the following: the phase calibration status or amplitude calibration status among multiple antenna ports within the antenna port group. In some, but not all, examples, the intra-group calibration indicator indicates: the ability of UE 140 to perform relative phase and / or amplitude calibration among multiple antenna ports 300 within the antenna port group 350.

[0120] For antenna port group 350_N, the in-group calibration indicator can be represented as CNN.

[0121] In some examples, the in-group calibration indicator indicates that antenna port group 350 is one of the following: fully calibrated, partially calibrated, or uncalibrated.

[0122] The fully calibrated intra-group calibration indicator indicates that the UE 140 is capable of performing relative phase and / or amplitude calibration between antenna ports 300 of antenna port group 350.

[0123] The partial calibration within a group indicator indicates that the UE 140 is capable of performing relative phase and / or amplitude calibration between a subset of antenna ports 300 of antenna port group 350. In the example, the subset of antenna ports 300 of antenna port group 350 is smaller than all antenna ports 300 of antenna port group 350.

[0124] An uncalibrated intra-group calibration indicator indicates that UE 140 cannot perform relative phase and / or amplitude calibration between antenna ports 300 of antenna port group 350.

[0125] In some, but not all, examples, the antenna port group calibration capability includes an inter-group calibration indicator. In some, but not all, examples, the inter-group calibration indicator indicates at least one of the following: the phase calibration status and / or amplitude calibration status between two or more antenna port groups. In some, but not all, examples, the inter-group calibration indicator indicates: the ability of UE 140 to perform relative phase and / or amplitude calibration between two or more antenna port groups 350.

[0126] For antenna port groups 350_N and 350_M, the inter-group calibration indicator can be represented as CNM and / or CMN.

[0127] In some such examples, the inter-group calibration indicator indicates that the combination of two or more antenna port groups 350 is one or more of the following: fully calibrated, partially calibrated, or uncalibrated.

[0128] The fully calibrated inter-group calibration indicator indicates that the UE 140 is capable of performing relative phase and / or amplitude calibration between two or more antenna port groups 350.

[0129] The partial calibration inter-group calibration indicator indicates that the UE 140 is capable of performing relative phase and / or amplitude calibration between subsets of antenna ports 300 in a combination of two or more antenna port groups 350. In the example, the subset of antenna ports 300 in a combination of two or more antenna port groups 350 is less than all antenna ports 300 in a combination of two or more antenna port groups 350.

[0130] An uncalibrated inter-group calibration indicator indicates that UE 140 cannot perform relative phase and / or amplitude calibration between antenna port groups 350.

[0131] In some, but not all, examples, antenna port group calibration capability includes: inter-group calibration indicators for all combinations (but not all permutations) of antenna port group 350.

[0132] In some, but not all, examples, the inter-group calibration indicator between the two antenna port groups 350_N and 350_M depends on the intra-group calibration indicator of at least one of antenna port group 350_N and antenna port group 350_M. In some such examples, the inter-group calibration indicator is equivalent to the lower of the intra-group calibration indicator of antenna port group 350_N and the intra-group calibration indicator of antenna port group 350_M. For example:

[0133] If the CNN is "fully calibrated" and the CMM is "fully calibrated",

[0134] Then CNM is "fully calibrated";

[0135] If the CNN is "fully calibrated" and the CMM is "partially calibrated",

[0136] Then CNM is "partially calibrated";

[0137] If the CNN is "fully calibrated" and the CMM is "uncalibrated", then the CNM is "uncalibrated".

[0138] In the example, antenna port group 350 has one intra-group calibration indicator and as many inter-group calibration indicators as possible combinations of those present in other antenna port groups 350. For example, in a UE 140 comprising three antenna port groups 350, one antenna port group 350 may have one intra-group calibration indicator and two inter-group calibration indicators.

[0139] Figure 5A and 5B An example of a UE 140 including six antenna port groups 350 is illustrated. Each antenna port group 350 includes one or more antenna ports 300.

[0140] exist Figure 5A In the examples, boxes with dot-filled areas represent antenna port group 350 with a fully calibrated in-group calibration indicator; boxes with stripe-filled areas represent antenna port group 350 with a partially calibrated in-group calibration indicator; and boxes without fill represent antenna port group 350 with an uncalibrated in-group calibration indicator.

[0141] Therefore, in Figure 5A In the example, the in-group calibration indicator is as follows:

[0142] C11 = Fully calibrated;

[0143] C22 = Partial calibration;

[0144] C33 = Fully calibrated;

[0145] C44 = Partial calibration;

[0146] C55 = Partial calibration; and

[0147] C66 = Uncalibrated.

[0148] against Figure 5A Examples of intergroup calibration indicators are listed in Table 1, where F indicates full calibration; P indicates partial calibration; and N indicates no calibration.

[0149]

[0150]

[0151] Table 1

[0152] In some, but not all, examples indicate that the antenna port group calibration capability means that UE 140 supports non-codebook precoding for multiple antenna ports 300. UE 140 is capable of supporting non-codebook precoding for fully calibrated and partially calibrated antenna port groups 350 and / or combinations of antenna port groups 350, but cannot support non-codebook precoding for uncalibrated antenna port groups 350 and / or combinations of antenna port groups 350.

[0153] Antenna port group calibration capability indication: UE 140 is able to simultaneously transmit single antenna port UL SRS resources via UE 140 logical antenna port 300 associated with multiple fully calibrated and / or partially calibrated antenna port groups 350.

[0154] Reference Figure 3 At block 304, the method includes sending an antenna port capability indicator to the network, the antenna port capability indicator including an indication of the size and / or arrangement of the antenna port 300 of the UE 140.

[0155] exist Figure 3 In the example, method boxes 302 and 304 can be executed simultaneously.

[0156] The antenna port capability indicator includes at least one of the following: the number of antenna port groups 350; the number of logical antenna ports of each antenna port group 350; the number of physical antenna elements of each antenna port group 350; the number of physical antenna elements per horizontal dimension; the number of physical antenna elements per vertical dimension; one or more polarization domains of the antenna ports; the horizontal distance between antenna port groups 350; or the vertical distance between antenna port groups 350. The antenna element includes at least one of the following: an antenna element, an antenna connector, and / or a radiator.

[0157] At box 308, the method includes: receiving configuration information from network node 150 of the network, wherein the configuration information includes one or more uplink resource sets, wherein each uplink resource set is associated with antenna group calibration information and / or an indicator of the antenna group calibration information.

[0158] In some, but not all, examples, the configuration information includes one or more antenna port supergroups 400, and an indication of using the antenna port supergroup 400 as a single uplink resource. Supergroups can be indicated explicitly or implicitly. Multiple antenna ports or groups of antenna ports sharing the same single uplink resource can be implicitly considered as supergroups.

[0159] Antenna port supergroup 400 includes one or more antenna port groups 350, wherein inter-group calibration indicators within antenna port groups 350 of antenna port supergroup 400 indicate full or partial calibration. Therefore, UE 140 is capable of performing relative phase and / or amplitude calibration between antenna ports 300 of antenna port supergroup 400 or between subsets of antenna ports 300 of antenna port supergroup 400.

[0160] In some, but not all, examples, it is assumed that antenna port group 350 with uncalibrated intra-group calibration indicators cannot be used for non-codebook-based transmissions. Therefore, no uplink resource set or antenna port supergroup 400 is created that includes antenna port group 350 with uncalibrated intra-group calibration indicators.

[0161] Figure 5B The diagram includes Figure 5A An example set of antenna port group 350 and antenna port supergroup 400. Figure 5B In the example, all antenna port groups 350 sharing configuration indicators (full calibration, partial calibration) are provided as a single antenna port supergroup 400. In other examples, some, but not all, of the antenna port groups 350 sharing configuration indicators are provided as antenna port supergroups 400; for example, two or more antenna port supergroups 400 with the same configuration indicator may be provided. In such examples, the two or more antenna port supergroups 400 are different antenna port supergroups 400, i.e., one antenna port group 350 may exist only in one antenna port supergroup 400.

[0162] Reference Figure 3 At box 310, the method includes determining precoding for uplink transmission between UE 140 and the network based on the received configuration information.

[0163] In some, but not all, examples, for a fully calibrated antenna group or combination of antenna groups, the component for determining precoding is configured to determine precoding based on one or more downlink measurements of a non-zero power channel state information resource associated with one or more antenna ports, such that at least one of the phase and amplitude is fully calibrated among the multiple transmit physical antenna elements of the UE.

[0164] In some, but not all, examples, for partially calibrated antenna groups or combinations of antenna groups, the component for determining precoding is configured to determine precoding based on one or more downlink measurements of non-zero power channel state information resources associated with one or more antenna ports, such that at least one of the phase and amplitude is partially calibrated among the multiple transmit physical antenna elements of the UE.

[0165] In some, but not all, examples, determining the precoding for uplink transmissions between UE 140 and the network based on the received configuration information includes: determining the precoding for uplink transmissions between UE 140 and the network using the uplink resource set or antenna port supergroup 400 for the uplink resource set and / or antenna port supergroup 400.

[0166] In some examples, UE 140 determines precoding for uplink transmissions between UE 140 and the network using multiple resource sets and / or multiple antenna port supergroups 400, for each resource set and / or antenna port supergroup 400.

[0167] At block 312, the method includes: precoding at least one reference signal to be transmitted using the resource set using the determined precoding for the resource set.

[0168] In some, but not all, examples, the method includes precoding at least one reference signal to be transmitted using the antenna port supergroup 400 using determined precoding for the antenna port supergroup 400.

[0169] In some, but not all, examples, the UE includes: a component for determining precoding for the uplink resource set based on one or more downlink measurements of non-zero power (NZP) channel state information (CSI) resources associated with the resource set.

[0170] In some, but not all, examples, when the uplink resource set is configured for use in non-codebook transmission and the antenna group of the resource set is fully calibrated, the UE includes: a component for determining precoding for transmitting single-antenna-port UL SRS resources based at least in part on an indication including fully calibrated antenna port group calibration information, and based on one or more DL measurements of non-zero power (NZP) channel state information (CSI) resources associated with one or more antenna ports. The precoding is determined such that the phase and / or amplitude are fully calibrated across the different UE TX physical antenna elements of the resource set.

[0171] In some, but not all, examples, when the uplink SRS resource set is configured to use "non-codebook" and calibration information = "fully calibrated", the UE determines the precoder for transmitting single-antenna-port UL SRS resources based on DL measurements of the associated non-zero power (NZP) channel state information (CSI) resources. This also applies to non-codebook-based PUSCH / PUCCH transmissions.

[0172] In some, but not all, examples, when the uplink resource set is configured for use in non-codebook transmissions and the antenna group of the resource set is partially calibrated, the UE includes: a component for determining precoding of the transmission for a single-antenna-port UL SRS resource based at least in part on an indication including partially calibrated antenna port group calibration information, and based on one or more DL measurements of the non-zero power (NZP) channel state information (CSI) resources associated with one or more antenna ports. The precoding is determined such that the phase and / or amplitude are partially calibrated among the different UE TX physical antenna elements of the resource set.

[0173] In some, but not all, examples, when the UL SRS resource set is configured to use "non-codebook" and calibration information = "partial calibration", the UE determines the precoder for transmitting single-antenna-port ULSRS resources based on DL measurements of the associated NZP CSI resources. This also applies to non-codebook-based PUSCH / PUCCH transmissions.

[0174] In some examples, UE 140 precodes multiple reference signals to be transmitted using multiple resource sets and / or multiple antenna port supergroups 400. In some examples, UE 140 precodes multiple reference signals to be transmitted using each resource set and / or each antenna port supergroup 400.

[0175] At block 314, the method includes transmitting at least one precoded reference signal via a resource set and / or antenna port supergroup 400 associated with precoding.

[0176] At block 320, the method includes: receiving an antenna port supergroup 400 indication from the network, the indication being used to indicate which of one or more antenna port supergroups 400 will be used for UL transmission between UE 140 and the network.

[0177] At block 322, the method includes enabling UL transmission between UE 140 and NW using the indicated antenna port supergroup 400.

[0178] In some, but not all, examples, uplink transmission is single-antenna-port UL SRS transmission / non-codebook-based PUSCH / PUCCH transmission.

[0179] therefore, Figure 3 The diagram illustrates a method that includes:

[0180] Sends to the network an antenna port group calibration capability associated with non-codebook-based precoding for uplink communication between UE 140 and the network, wherein the antenna port group calibration capability indicates the ability of UE 140 to perform relative phase and / or amplitude calibration between multiple antenna ports 300 of UE 140;

[0181] Send an antenna port capability indicator to the network, which includes an indication of the size and / or arrangement of the antenna port 300 of UE 140;

[0182] Receive configuration information from network node 150 of the network, wherein the configuration information includes one or more uplink resource sets and an indication to use the uplink resource set as a single uplink resource, wherein the uplink resource set includes one or more antenna port groups 350, and wherein the inter-group calibration indicator of the antenna port group 350 within the uplink resource set is fully calibrated or partially calibrated.

[0183] Based on the received configuration information, determine the precoding for uplink transmission between UE 140 and the network;

[0184] The determined precoding for the uplink resource set is used to precode at least one reference signal to be transmitted using the uplink resource set.

[0185] At least one precoded reference signal is sent to the network using the uplink resource set associated with the precoding;

[0186] Receive an uplink resource set indication from the network. This indication specifies which uplink resource set from one or more antenna port uplink resource sets will be used by the UE.

[0187] 140 Uplink transmission between the network; and

[0188] Use the indicated uplink resource set to enable uplink transmission between UE 140 and the network.

[0189] From the perspective of network node 150, at block 302, the method includes: receiving from UE 140 an antenna port group calibration capability associated with uplink communication between UE 140 and the network based on non-codebook precoding.

[0190] At block 304, the method includes receiving an antenna port capability indicator from UE 140, the indicator including an indication of the size and / or arrangement of antenna port 300 of UE 140.

[0191] exist Figure 3 In the example, method boxes 302 and 304 are executed simultaneously. In other examples, method boxes 302 and 304 can be executed individually.

[0192] At block 306, the method includes: determining one or more uplink resource sets based on at least one received antenna port group calibration capability, wherein the uplink resource set includes one or more antenna port groups.

[0193] In some, but not all, examples, the method includes: identifying one or more antenna port supergroups 400, wherein the antenna port supergroup 400 includes one or more antenna port groups 350, and wherein the inter-group calibration indicator of the antenna port groups 350 within the antenna port supergroup 400 is fully calibrated or partially calibrated.

[0194] In some, but not all, examples, the network determines how many antenna port groups 350 are captured within the uplink resource set and / or antenna port supergroup 400. In some examples, this determination is based at least in part on received antenna port capability indicators.

[0195] At block 308, the method includes sending configuration information to UE 140, wherein the configuration information includes one or more uplink resource sets, wherein each uplink resource set is associated with antenna group calibration information and / or an indication of antenna group calibration information.

[0196] In some, but not all, examples, the configuration information includes: one or more antenna port supergroups 400, and an indication to use the antenna port supergroup 400 as a single uplink resource.

[0197] At block 314, the method includes: receiving at least one precoded reference signal from UE 140.

[0198] At block 316, the method includes: determining a channel estimate based on the received precoded reference signal.

[0199] At block 318, the method includes: determining, based on channel estimation, which of one or more uplink resource sets and / or antenna port supergroups 400 will be used for uplink transmission between UE 140 and the network.

[0200] At block 320, the method includes: sending an uplink resource set and / or antenna port supergroup 400 indication to the UE 140, the indication being used to indicate which of one or more uplink resource sets and / or antenna port supergroups 400 will be used for UL transmission between the UE 140 and the network.

[0201] At box 322, the method includes enabling UL transmission between UE 140 and NW using the indicated uplink resource set and / or antenna port supergroup 400.

[0202] therefore, Figure 3 The diagram illustrates a method that includes:

[0203] The UE 140 receives antenna port group calibration capability associated with non-codebook-based precoding for uplink communication between the UE 140 and the network.

[0204] Receive an antenna port capability indicator from UE 140, which includes an indication of the size and / or arrangement of antenna port 300 of UE 140;

[0205] Antenna port group calibration capability and antenna port capability reception can be in the same message or in separate messages;

[0206] One or more uplink resource sets are determined based on the calibration capability of at least one received antenna port group, wherein the uplink resource set includes one or more antenna port groups 350, and wherein the inter-group calibration indicator of the antenna port groups 350 within the uplink resource set is fully calibrated or partially calibrated.

[0207] Send configuration information to UE 140, wherein the configuration information includes one or more uplink resource sets and an indication to use the uplink resource set as a single uplink resource;

[0208] Receive at least one precoded reference signal from UE 140;

[0209] Channel estimation is determined based on the received precoded reference signal;

[0210] Based on channel estimation, determine which uplink resource set from one or more uplink resource sets will be used for uplink transmission between UE 140 and the network;

[0211] Send an uplink resource set indication to UE 140, which indicates which uplink resource set from one or more uplink resource sets will be used for UL transmission between UE 140 and the network; and

[0212] Use the indicated uplink resource set to enable UL transmission between UE 140 and NW.

[0213] Figure 6 An example of method 600 is illustrated.

[0214] This method can be performed by any suitable means including any suitable components for performing the method, for example, regarding Figure 9AThe aforementioned device.

[0215] In the example, the method can be executed by terminal node 110 (such as UE 140).

[0216] At block 602, method 600 includes: sending to the network an antenna port group calibration capability associated with uplink communication between UE 140 and the network based on non-codebook precoding, wherein the antenna port group calibration capability indicates the ability of UE 140 to perform relative phase and / or amplitude calibration between multiple antenna ports 300 of UE 140.

[0217] At block 604, method 600 includes: sending an antenna port capability indicator to the network, the indicator including an indication of the size and / or arrangement of the antenna port 300 of UE 140.

[0218] In one example, boxes 602 and 604 are executed simultaneously in a single message. In other examples, boxes 602 and 604 may be executed separately, for example, in the same or different messages.

[0219] At block 606, method 600 includes: receiving configuration information from network node 150 of the network, wherein the configuration information includes one or more uplink resource sets and an indication to use the uplink resource sets as a single uplink resource, wherein the uplink resource sets include one or more antenna port groups 350, and wherein inter-group calibration indicators of the antenna port groups 350 within the uplink resource sets are fully calibrated or partially calibrated.

[0220] At block 608, method 600 includes: determining precoding for uplink transmission between UE 140 and the network based on the received configuration information.

[0221] At block 610, method 600 includes: precoding at least one reference signal to be transmitted using the uplink resource set using a precoding determined for the uplink resource set.

[0222] At block 612, method 600 includes: sending at least one precoding reference signal to the network via an uplink resource set associated with precoding.

[0223] At block 614, method 600 includes: receiving a supergroup indication from the network, the indication being used to indicate which uplink resource set of one or more uplink resource sets will be used for uplink transmission between UE 140 and the network.

[0224] At block 616, method 600 includes enabling uplink transmission between UE 140 and the network using the indicated uplink resource set.

[0225] therefore, Figure 6 The diagram illustrates a method that includes:

[0226] Sends to the network an antenna port group calibration capability associated with non-codebook-based precoding for uplink communication between UE 140 and the network, wherein the antenna port group calibration capability indicates the ability of UE 140 to perform relative phase and / or amplitude calibration between multiple antenna ports 300 of UE 140;

[0227] Send an antenna port capability indicator to the network, which includes an indication of the size and / or arrangement of the antenna port 300 of UE 140;

[0228] Receive configuration information from network node 150 of the network, wherein the configuration information includes one or more uplink resource sets and an indication to use the uplink resource set as a single uplink resource, wherein the uplink resource set includes one or more antenna port groups 350, and wherein the inter-group calibration indicator of the antenna port group 350 within the uplink resource set is fully calibrated or partially calibrated.

[0229] The precoding for uplink transmission between UE 140 and the network is determined based on the received configuration information;

[0230] The determined precoding for the uplink resource set is used to precode at least one reference signal to be transmitted using the uplink resource set.

[0231] At least one precoded reference signal is sent to the network using the uplink resource set associated with the precoding;

[0232] Receive an uplink resource set indication from the network, which indicates which uplink resource set from one or more uplink resource sets will be used for uplink transmission between UE 140 and the network; and

[0233] Use the indicated uplink resource set to enable uplink transmission between UE 140 and the network.

[0234] Figure 7 An example of one method is illustrated.

[0235] This method can be performed by any suitable means including any suitable components for performing the method, for example, regarding Figure 9A The aforementioned device.

[0236] In the example, this method can be executed by network node 150 (such as gNB).

[0237] At block 702, method 700 includes: receiving from UE 140 an antenna port group calibration capability associated with uplink communication between UE 140 and the network based on non-codebook precoding.

[0238] At block 704, method 700 includes receiving an antenna port capability indicator from UE 140, the indicator including an indication of the size and / or arrangement of antenna port 300 of UE 140.

[0239] In one example, boxes 702 and 704 are executed simultaneously in a single message. In other examples, boxes 702 and 704 may be executed separately, for example, in the same or different messages.

[0240] At block 706, method 700 includes: determining one or more uplink resource sets based on at least one received antenna port group calibration capability, wherein the uplink resource set includes one or more antenna port groups 350, and wherein the inter-group calibration indicator of the antenna port groups 350 within the uplink resource set is fully calibrated or partially calibrated.

[0241] At block 708, method 700 includes sending configuration information to UE 140, wherein the configuration information includes one or more uplink resource sets and an indication to use the uplink resource sets as a single uplink resource.

[0242] At blocks 110 and 150, method 700 includes receiving at least one precoded reference signal from UE 140.

[0243] At block 712, method 700 includes: determining a channel estimate based on the received precoded reference signal.

[0244] At block 714, method 700 includes: determining, based on channel estimation, which uplink resource set from one or more uplink resource sets will be used for uplink transmission between UE 140 and the network.

[0245] At block 716, method 700 includes sending an uplink resource set indication to UE 140, the indication being used to indicate which uplink resource set of one or more uplink resource sets will be used for UL transmission between UE 140 and the network.

[0246] At box 718, method 700 includes enabling UL transmission between UE 140 and NW using the indicated uplink resource set.

[0247] therefore, Figure 7 The diagram illustrates a method that includes:

[0248] The UE 140 receives antenna port group calibration capability associated with non-codebook-based precoding for uplink communication between the UE 140 and the network.

[0249] Receive an antenna port capability indicator from UE 140, which includes an indication of the size and / or arrangement of antenna port 300 of UE 140;

[0250] One or more uplink resource sets are determined based on the calibration capability of at least one received antenna port group, wherein the uplink resource set includes one or more antenna port groups 350, and wherein the inter-group calibration indicator of the antenna port groups 350 within the uplink resource set is fully calibrated or partially calibrated.

[0251] Send configuration information to UE 140, wherein the configuration information includes one or more uplink resource sets and an indication to use the uplink resource set as a single uplink resource;

[0252] Receive at least one precoded reference signal from UE 140;

[0253] Channel estimation is determined based on the received precoded reference signal;

[0254] Channel estimation is used to determine which uplink resource set from one or more uplink resource sets will be used for uplink transmission between UE 140 and the network;

[0255] Send an uplink resource set indication to UE 140, which indicates which uplink resource set from one or more uplink resource sets will be used for UL transmission between UE 140 and the network; and

[0256] Use the indicated uplink resource set to enable UL transmission between UE 140 and NW.

[0257] Figure 10 An example of method 1000 is illustrated.

[0258] In the example, Figure 10 It can be considered to illustrate multiple methods.

[0259] Method 1000 can be performed by any suitable means including any suitable components for performing method 1000, for example, regarding Figure 9A The aforementioned device.

[0260] Method 1000 can be performed in combination with one or more of the methods described above. For example, method 1000 can be performed before and / or simultaneously with method 300 and / or method 600. Method 1000 and methods 300 and 600 can be performed by the same apparatus or different apparatuses.

[0261] In the example, method 1000 can be executed by terminal node 110 (such as UE 140).

[0262] Method 1000 is used to determine the antenna port calibration capability of a UE. Method 1000 can be considered to include a main block 1050, which includes determining the antenna port group calibration capability of the UE. Blocks 1002-1024 can be sub-blocks of the main block 1050.

[0263] The antenna port group calibration capability depends on at least one of the following: phase calibration or amplitude calibration of one or more antenna port groups of the UE.

[0264] In some, but not all, examples, antenna port group calibration capability is or indicates the UE's ability to perform relative phase and / or amplitude calibration between multiple antenna ports of the UE.

[0265] In some, but not all, examples, determining the UE’s antenna port group calibration capability includes determining the UE’s ability to perform relative phase and / or amplitude calibration between multiple antenna ports of the UE.

[0266] In some, but not all, examples, determining antenna port group calibration capability includes generating or otherwise creating an antenna port group calibration capability indicator associated with non-codebook-based precoding used for uplink communication between the UE and the network. The antenna port group calibration capability indicator indicates the UE's ability to perform relative phase and / or amplitude calibration between multiple antenna ports of the UE. In the example, the antenna port group calibration capability indicator indicates the antenna port group calibration capability as described above.

[0267] In some, but not all, examples, the determination of antenna port group calibration capability is performed by the UE at the baseband level.

[0268] At block 1002, method 1000 includes: obtaining an indication for initiating a determination of antenna port group calibration capability.

[0269] In some, but not all, examples, this instruction is received from the network node. Therefore, the determination of the antenna port group calibration capability is initiated based on instructions from the network.

[0270] In some, but not all, examples, this indication is generated by the UE based on the fulfillment of a trigger condition. Therefore, the determination of the antenna port group calibration capability is initiated based on the fulfillment of the trigger condition. Consequently, the determination of the antenna port group calibration capability can be performed dynamically, for example, during UE usage.

[0271] In some, but not all, examples, the trigger condition is met if a change is detected by one or more sensors and / or if a change in the measurement signal is detected. The one or more sensors may include at least one of the following: a proximity sensor; a motion sensor; or a position sensor. The change in the measurement signal may be at least one of the following: a phase change; an amplitude change.

[0272] At block 1004, method 1000 includes: initiating a determination of antenna port group calibration capability based on obtaining the instruction.

[0273] At block 1006, method 1000 includes: using one or more antenna ports to measure one or more reference signals.

[0274] In some, but not all, examples, one or more reference signals are measured through one or more combinations of two or more antenna ports.

[0275] In some, but not all, examples, one or more reference signals are received reference signals.

[0276] In some, but not all, examples, measuring one or more reference signals includes measuring the symbols of one or more reference signals.

[0277] In some, but not all, examples, measuring one or more reference signals includes measuring the amplitude and / or phase of one or more reference signals.

[0278] In some, but not all, examples, method 1000 includes: measuring one or more downlink reference signals and / or one or more uplink reference signals and / or one or more uplink signals during an authorized uplink gap. The downlink reference signals can be used to characterize / calibrate the RF receiver path. The transmission path can be characterized / calibrated by the UE transmitting an SRS or specific TX reference signal for internal characterization. Transmitting the internal characterization / calibration signal requires uplink gap allocation from the network node.

[0279] At block 1008, method 1000 includes: comparing a measurement of a first measurement reference signal with a measurement of a second measurement reference signal. The first reference signal is a downlink reference signal. The second reference signal is at least one of the following: a different measurement reference signal; a reference signal measured at an antenna port different from the first measurement reference signal; an uplink reference signal; or a anticipated reference signal.

[0280] Therefore, the measurement of the first reference signal is a downlink reference signal measurement. Therefore, the measurement of the second reference signal is at least one of the following: a measurement of a different measurement reference signal; a measurement of a reference signal measured at an antenna port different from the first measurement reference signal; a measurement of an uplink reference signal; or a measurement of a anticipated reference signal.

[0281] In some, but not all, examples, the first measurement reference signal is a downlink reference signal measured at two or more antenna ports, and the second measurement reference signal is an uplink reference signal measured at one or more antenna ports.

[0282] At block 1010, method 1000 includes: determining a difference between one or more dynamic characteristics of two or more antenna ports based at least in part on a comparison of measurements of one or more downlink reference signals measured at a first antenna port and a second antenna port.

[0283] In some, but not all, examples, method 1000 includes: determining a difference between one or more dynamic characteristics of a first antenna port among two or more antenna ports and one or more corresponding dynamic characteristics of a second antenna port among two or more antenna ports. The determination of this difference is based at least in part on a comparison of measurements of one or more uplink reference signals measured at the first antenna port with measurements of one or more uplink reference signals measured at the second antenna port.

[0284] In some, but not all, examples, method 1000 includes: determining a difference between one or more dynamic characteristics of a first antenna port among two or more antenna ports and one or more corresponding dynamic characteristics of a third antenna port among two or more antenna ports. The determination of this difference is based at least in part on a comparison of a measurement of a downlink reference signal taken at the first antenna port and a measurement of a downlink reference signal taken at the third antenna port.

[0285] In some, but not all, examples, method 1000 includes: determining a difference between one or more dynamic characteristics of a first combination of two or more antenna ports and one or more corresponding dynamic characteristics of a second combination of two or more antenna ports. The determination of this difference is based at least in part on a comparison of measurements of a downlink reference signal taken at the first combination of one or more antenna ports and measurements of the downlink reference signal taken at the second combination of one or more antenna ports.

[0286] In some, but not all, examples, one or more dynamic characteristics include at least one of the following: directivity; complex impedance; angular direction of maximum gain; phase; amplitude.

[0287] In the example, the first downlink reference signal can be used to characterize the receiver path on all antenna ports. The UE reference signal can be transmitted simultaneously or sequentially on all transmit paths.

[0288] In some, but not all, examples, the DL signal is used to measure the relative amplitude and phase difference between antenna ports. Based on this, the UE can apply the correct amplitude and phase values ​​(precoding) for non-codebook-based UL MIMO transmissions because it knows the calibration values ​​for each MIMO / RF branch, as well as the required relative amplitude and phase values ​​between antenna ports.

[0289] At box 1012, method 1000 includes: identifying one or more valid combinations of two or more antenna ports.

[0290] The identifier is based at least in part on a comparison of two or more reference signals. For example, the identifier may be based at least in part on a comparison of a measurement of a first measurement reference signal with a measurement of a second measurement reference signal.

[0291] In some, but not all, examples, the identification of one or more valid combinations of two or more antenna ports is based at least in part on: for multiple antenna ports among the two or more antenna ports, a comparison of the measured downlink reference signal at the antenna port with the measured uplink reference signal at the antenna port. In some, but not all, examples, the identification of one or more valid combinations of two or more antenna ports is based at least in part on: for all antenna ports among the two or more antenna ports, a comparison of the measured downlink reference signal at the antenna port with the measured uplink reference signal at the antenna port.

[0292] In some, but not all, examples, the identification of one or more valid combinations of two or more antenna ports is based at least in part on a comparison of one or more first reference signals measured at a first antenna port among the two or more antenna ports with one or more second reference signals measured at a second antenna port among the two or more antenna ports.

[0293] In some, but not all, examples, a combination of two or more antenna ports is valid if relative phase and / or amplitude calibration can be performed between at least a subset of the two or more antenna ports.

[0294] In some, but not all, examples, if the UE is able to perform relative phase and / or amplitude calibration between two or more antenna ports, then the combination of two or more antenna ports is valid and its calibration capability is fully calibrated. In some examples, if the UE is able to perform relative phase and / or amplitude calibration between all antenna ports, then the combination of two or more antenna ports is valid and its calibration capability is fully calibrated.

[0295] In some, but not all, examples, if the UE is able to perform relative phase and / or amplitude calibration between subsets of two or more antenna ports, then the combination of two or more antenna ports is valid and its calibration capability is partial calibration.

[0296] In some, but not all, examples, if the UE cannot perform relative phase and / or amplitude calibration between two or more antenna ports, then the combination of two or more antenna ports is invalid and its calibration capability is uncalibrated.

[0297] In some, but not all, examples, relative phase and / or amplitude calibration is performed between antenna ports and / or groups of antenna ports to compensate for user equipment-related transfer functions in the phase and / or time domains associated with different antenna ports and / or different groups of antenna ports.

[0298] In some, but not all, examples, relative phase calibration includes delivering multiple timing offsets to multiple antenna ports and / or groups of antenna ports such that the phase difference between the multiple antenna ports and / or groups of antenna ports is below a threshold.

[0299] In some, but not all, examples, relative amplitude calibration includes delivering multiple power offsets to multiple antenna ports and / or groups of antenna ports such that the amplitude difference between the multiple antenna ports and / or groups of antenna ports is below a threshold.

[0300] In some, but not all, examples, a combination of two or more antenna ports is valid if the phase and amplitude of the RX path and TX path for two or more antenna ports are reciprocal.

[0301] In some, but not all, examples, the validity of a combination of two or more antenna ports is based at least in part on at least one of the following: channel coherence; UE movement and / or rotation; time since the combination of two or more antenna ports was last calibrated; RF front-end reconfiguration.

[0302] At block 1014, method 1000 includes determining at least one of the following: one or more preferred combinations of one or more antenna ports; or one or more candidate combinations of one or more antenna ports. This determination is based at least in part on one or more valid combinations of the identified two or more antenna ports.

[0303] In some, but not all, examples, a preferred combination of one or more antenna ports is the combination of one or more combinations of one or more antenna ports that has the best expected performance. For example, a preferred combination of one or more antenna ports may have one or more of the following: the maximum number of fully calibrated antenna ports; the highest RSRP.

[0304] In some, but not all, examples, a candidate combination of one or more antenna ports is a combination of one or more antenna ports that can be used as an alternative to a service combination of one or more antenna ports. For example, if the performance of a service combination of one or more antenna ports degrades below a threshold, a candidate combination of one or more antenna ports can become a new service combination of one or more antenna ports. The new service combination of one or more antenna ports can replace a previous service combination of one or more antenna ports, or can supplement a previous service combination of one or more antenna ports.

[0305] In some, but not all, examples, the antenna ports of one or more candidate antenna ports are calibrated before they become the serving combination of one or more antenna ports. In other examples, the antenna ports of one or more candidate antenna ports are calibrated after they have been selected as the serving combination of one or more antenna ports.

[0306] In some, but not all, examples, the determination of one or more preferred combinations and / or one or more candidate combinations of one or more antenna ports is based on the calibration capability of one or more combinations of one or more antenna ports.

[0307] In some, but not all, examples, combinations of one or more valid and fully calibrated antenna ports (rather than combinations of one or more valid and partially calibrated antenna ports) are selected as preferred and / or candidate combinations.

[0308] In some, but not all, examples, combinations of one or more valid and partially calibrated antenna ports (rather than combinations of one or more invalid and uncalibrated antenna ports) are selected as preferred and / or candidate combinations.

[0309] In some, but not all, examples, determining one or more preferred combinations and / or one or more candidate combinations of antenna ports includes measuring the RSRP of one or more valid combinations of one or more antenna ports.

[0310] In some such examples, the determination of one or more preferred combinations and / or one or more candidate combinations is based at least in part on the measured RSRP. In some, but not necessarily all, examples, one or more preferred combinations and / or one or more candidate combinations are selected based on one or more highest measured RSRPs.

[0311] At block 1016, method 1000 includes associating one or more preferred combinations and / or one or more candidate combinations of antenna ports with one or more groups of antenna ports. A group of antenna ports includes at least one or more combinations of antenna ports associated with it.

[0312] At box 1018, method 1000 includes: determining an in-group calibration indicator for one or more antenna port groups.

[0313] The intra-group calibration indicator indicates the UE's ability to perform relative phase and / or amplitude calibration between multiple antenna ports within an antenna port group. In the example, the determined intra-group calibration indicator is the intra-group calibration indicator as described above.

[0314] The intra-group calibration indicator is determined based on the calibration capability of one or more combinations of antenna ports associated with the antenna port group. In some, but not all, examples, the intra-group calibration indicator identifies the antenna port group as fully calibrated, partially calibrated, or uncalibrated based on the calibration capability of one or more combinations of associated antenna ports.

[0315] At block 1020, method 1000 includes: determining an inter-group calibration indicator for a combination of two or more antenna port groups.

[0316] The inter-group calibration indicator indicates the UE's ability to perform relative phase and / or amplitude calibration between two or more antenna port groups. In the example, the determined inter-group calibration indicator is the inter-group calibration indicator as described above.

[0317] Inter-group calibration indicators are determined based on the calibration capability of one or more combinations of antenna ports associated with two or more antenna port groups. In some, but not all, examples, the inter-group calibration indicator indicates whether a combination of antenna port groups is fully calibrated, partially calibrated, or uncalibrated based on the calibration capability of one or more combinations of associated antenna ports.

[0318] At box 1022, method 1000 includes: generating an antenna port group calibration capability indicator.

[0319] Generating antenna port group calibration capability indicators includes generating indicators for: one or more antenna port groups; intra-group calibration indicators for one or more antenna port groups; and inter-group calibration indicators for one or more combinations of one or more antenna port groups.

[0320] In some, but not all, examples, the antenna port group calibration capability indicator includes indications for multiple, but not all, antenna port groups. In other examples, the antenna port group calibration capability indicator includes indications for all identified antenna port groups.

[0321] Therefore, the antenna port group calibration capability indicator provides phase and amplitude information for different antenna ports. Thus, the antenna port group calibration capability indicator identifies which antenna ports can be calibrated.

[0322] At box 1024, method 1000 includes sending an antenna port group calibration capability indicator to the network. In some examples, box 1024 is performed as box 302 of method 300 and / or box 602 of method 600.

[0323] therefore, Figure 10 The illustration shows a method 1000 for determining the antenna port group calibration capability of a UE, the method comprising:

[0324] Obtain an indication to determine the capability to initiate antenna port group calibration;

[0325] Determine the antenna port group calibration capability;

[0326] Use one or more antenna ports to measure one or more reference signals;

[0327] The measurement of the first measurement reference signal is compared with the measurement of the second measurement reference signal;

[0328] Determine the difference between one or more dynamic characteristics of the first antenna port among two or more antenna ports and one or more corresponding dynamic characteristics of the second antenna port among two or more antenna ports;

[0329] Identifies one or more valid combinations of two or more antenna ports;

[0330] Determine at least one of the following: one or more preferred combinations of one or more antenna ports, or one or more candidate combinations of one or more antenna ports;

[0331] Associate one or more preferred combinations and / or one or more candidate combinations of antenna ports with one or more groups of antenna ports;

[0332] Determine the intra-group calibration indicator for one or more antenna port groups;

[0333] Determine the inter-group calibration indicator for a combination of two or more antenna port groups;

[0334] Generate antenna port group calibration capability indicators; and

[0335] Sends an antenna port group calibration capability indicator to the network.

[0336] Figure 11 An example of method 1100 is illustrated.

[0337] In the example, it can be considered that Figure 11 The diagram illustrates several methods.

[0338] Method 1100 can be performed by any suitable means including any suitable components for performing method 1100, for example, regarding Figure 9A The aforementioned device.

[0339] Method 800 can be performed in combination with one or more of the methods described above. For example, method 800 can be performed before and / or concurrently with method 300 and / or method 600. Method 800 and methods 300 and 600 can be performed by the same apparatus or different apparatuses.

[0340] In the example, method 800 can be executed by terminal node 110 (such as UE 140).

[0341] Method 800 is used to determine the multi-antenna port calibration capability of a UE. Method 800 can be considered to include a main block 850, which includes determining the multi-antenna port calibration capability of the UE. Blocks 802-826 can be sub-blocks of the main block 850.

[0342] Multi-antenna port calibration capability depends on at least one of the following: phase calibration or amplitude calibration of one or more RF branches of the UE.

[0343] In some, but not all, examples, multi-antenna port calibration capability is, or instructs, the UE to perform relative phase and / or amplitude calibration between multiple antenna ports of the UE.

[0344] In some, but not all, examples, determining the UE's antenna port calibration capability includes determining the UE's ability to perform relative phase and / or amplitude calibration between multiple antenna ports of the UE.

[0345] In some, but not all, examples, multi-antenna port calibration capability additionally or alternatively indicates the UE's ability to perform phase and / or amplitude calibration of one or more RF branches of the UE.

[0346] In some, but not all, examples, determining multi-antenna port calibration capability includes generating or otherwise creating a multi-antenna port calibration capability indicator that facilitates non-codebook-based precoding for uplink communication between the UE and the network. The multi-antenna port calibration capability indicator indicates: the UE's ability to perform relative phase and / or amplitude calibration between multiple antenna ports of the UE, and / or the UE's ability to perform phase and / or amplitude calibration of one or more RF branches of the UE.

[0347] In some, but not all, examples, the determination of multi-antenna port calibration capability is performed by the UE at the baseband level.

[0348] At block 802, method 800 includes: obtaining a determination of the capability to initiate multi-antenna port calibration.

[0349] In some, but not all, examples, this instruction is received from the network node. Therefore, the determination of multi-antenna port calibration capability is initiated based on instructions from the network.

[0350] In some, but not all, examples, this indication is generated by the UE based on the fulfillment of a trigger condition. Therefore, the determination of multi-antenna port calibration capability is initiated based on the fulfillment of the trigger condition. Consequently, the determination of multi-antenna port calibration capability can be performed dynamically, for example, during UE usage.

[0351] In some, but not all, examples, the trigger condition is met if a change is detected by one or more sensors and / or if a change in the measurement signal is detected. The one or more sensors may include at least one of the following: a proximity sensor; a motion sensor; or a position sensor. The change in the measurement signal may be at least one of the following: a phase change; an amplitude change.

[0352] At block 804, method 800 includes: initiating a determination of multi-antenna port calibration capability based on obtaining the instruction.

[0353] At block 806, method 800 includes: using one or more antenna ports to measure one or more reference signals.

[0354] One or more antenna ports used to measure one or more reference signals are connected to a corresponding RF branch. The RF branch is connected to one of the one or more selectable antenna ports. Therefore, by measuring the reference signal at the antenna port connected to the RF branch, information about the RF branch can be obtained.

[0355] In some, but not all, examples, one or more reference signals are one or more downlink reference signals. In some, but not all, examples, one or more reference signals are one or more uplink reference signals. In some, but not all, examples, one or more reference signals include one or more downlink reference signals and one or more uplink reference signals.

[0356] In some, but not all, examples, the reference signals include at least one or more of the following: a first set of one or more downlink reference signals; a second set of one or more downlink reference signals; and a first set of one or more uplink reference signals. The first set of downlink reference signals and the second set of downlink reference signals may include the same, overlapping, or different reference signals. In some, but not all, examples, the first set of one or more uplink reference signals includes one or more RF calibration signals.

[0357] In the examples, boxes 806-812 provide sub-methods of method 800 for identifying one or more valid RF branches. For clarity, some examples listed below boxes 806-812 are described with reference to a single RF branch; however, it should be understood that boxes 806-812 can be executed simultaneously or sequentially against multiple RF branches.

[0358] Therefore, in the example, at box 806, method 800 includes: measuring one or more reference signals using an antenna port connected to the RF branch.

[0359] In some, but not all, examples, one or more reference signals are measured by one or more combinations of two or more antenna ports.

[0360] In some, but not all, examples, one or more reference signals are received reference signals.

[0361] In some, but not all, examples, measuring one or more reference signals includes measuring the symbols of one or more reference signals.

[0362] In some, but not all, examples, measuring one or more reference signals includes measuring the amplitude and / or phase of one or more reference signals.

[0363] In some, but not all, examples, method 800 includes measuring one or more downlink reference signals and / or one or more uplink reference signals and / or one or more licensed uplink gaps. An uplink gap is an allocation in which the UE does not need to transmit to the gNB. Such uplink gaps can be used by the UE to perform, for example, TX calibration.

[0364] For example, method 800 may include measuring downlink reference signals and uplink reference signals at an antenna port connected to an RF branch.

[0365] In the example, one or more downlink reference signals from the second set of downlink reference signals are used to characterize / calibrate the RF receiver path.

[0366] The transmission path can be characterized / calibrated by the UE transmitting an SRS or a specific TX reference signal for internal characterization. In some, but not all, examples, one or more uplink reference signals from a first set of uplink reference signals are used to characterize / calibrate the RF transmission path. The UE may require uplink gap allocation from network nodes to transmit internal characterization / calibration signals.

[0367] At block 808, method 800 includes: comparing a measurement of a first measurement reference signal with a measurement of a second measurement reference signal. The first reference signal is a downlink reference signal or an uplink reference signal. The second reference signal is at least one of the following: a different measurement reference signal; a reference signal measured at an antenna port different from the first measurement reference signal; an uplink reference signal; a downlink reference signal; or a anticipated reference signal.

[0368] Therefore, the measurement of the first reference signal is a downlink reference signal measurement. Therefore, the measurement of the second reference signal is at least one of the following: a measurement of a different measurement reference signal; a measurement of a reference signal measured at an antenna port different from the first measurement reference signal; a measurement of an uplink reference signal; a measurement of a downlink reference signal; or a measurement of a anticipated reference signal.

[0369] In the example, the first reference signal is a downlink reference signal measured at the antenna port connected to the RF branch, and the second reference signal is an RF calibration signal measured at the antenna port connected to the RF branch.

[0370] In some, but not all, examples, the first reference signal is a downlink reference signal in a first set of downlink reference signals, and the second reference signal is a downlink reference signal in a first set of downlink reference signals. In some, but not all, examples, the first reference signal is a downlink reference signal in a first set of downlink reference signals, and the second reference signal is an uplink reference signal in a first set of uplink reference signals.

[0371] At block 810, method 800 includes: determining the difference between a first reference signal and a second reference signal.

[0372] In some, but not all, examples, method 800 includes: determining the difference between one or more downlink reference signals in a second set of downlink reference signals and one or more uplink reference signals in a first set of uplink reference signals.

[0373] The difference between the first (downlink) reference signal and the second (uplink) reference signal at the RF branch is determined by measuring the difference between a first (downlink) reference signal measured at the antenna port connected to the RF branch and a second (uplink) reference signal measured at the antenna port connected to the RF branch. The measurements of the first and second reference signals are performed at the baseband.

[0374] In some, but not all, examples, method 800 includes determining one or more dynamic characteristics of an antenna port connected to an RF branch.

[0375] In some, but not all, examples, one or more dynamic characteristics include at least one of the following: directivity; complex impedance; angular direction of maximum gain; phase; amplitude.

[0376] In the example, the first downlink reference signal can be used to characterize the receiver path on the antenna port connected to the RF branch. In the example, the first downlink reference signal can be used to characterize the receiver path on all multiple antenna ports connected to multiple RF branches. The UE reference signal can be transmitted simultaneously or sequentially on all transmission paths.

[0377] In some, but not all, examples, a reference signal is compared to determine the relative amplitude and phase difference between the antenna ports. In some such examples, the reference signal is a downlink reference signal from the first set of downlink reference signals. Based on this, the UE can apply the correct amplitude and phase values ​​(precoding) for non-codebook-based UL MIMO transmissions because it knows the calibration values ​​for each MIMO / RF branch, as well as the required relative amplitude and phase values ​​between the antenna ports.

[0378] At box 812, method 800 includes: identifying one or more valid RF branches covering the first frequency band.

[0379] The identifier is based at least in part on a comparison of two or more measurement reference signals. For example, the identifier may be based at least in part on a comparison of a measurement of a first (downlink) measurement reference signal with a measurement of a second (uplink) measurement reference signal.

[0380] In some, but not all, examples, the identification of an effective RF branch covering the first frequency band is based at least in part on: for an antenna port connected to the RF branch, a comparison of the measured downlink reference signal at the antenna port with the measured uplink reference signal at the antenna port. In some, but not all, examples, the identification of one or more effective RF branches covering the first frequency band is based at least in part on: for all two or more antenna ports, a comparison of the measured downlink reference signal at the antenna port with the measured uplink reference signal at the antenna port.

[0381] In some, but not all, examples, the identification of a valid RF branch is based at least in part on: a comparison of two or more downlink reference signals in a second set of downlink reference signals, a comparison of two or more uplink reference signals in a first set of uplink reference signals, or a comparison of the second set of downlink reference signals with one or more reference signals in the first set of uplink reference signals.

[0382] In some, but not all, examples, an RF branch covering the first frequency band is valid if relative phase and / or amplitude calibration can be performed between at least a subset of two or more antenna ports.

[0383] In some, but not all, examples, the RF branch covering the first frequency band is valid if the UE is able to perform relative phase and / or amplitude calibration of the Rx and Tx paths of the RF branch.

[0384] The difference between the Rx path and the Tx path can be determined by comparing the downlink reference signal (e.g., a downlink reference signal in a second set of downlink reference signals) and the uplink reference signal (e.g., an uplink reference signal in a first set of uplink reference signals) measured at the antenna port connected to the RF branch. In the example, the RF branch is valid if the difference between the Rx path and the Tx path of the RF branch can be compensated.

[0385] In some, but not all, examples, if the UE cannot perform relative phase and / or amplitude calibration between the Rx and Tx paths of the RF branch, the RF branch covering the first frequency band is invalid.

[0386] In some, but not all, examples, performing relative phase and / or amplitude calibration between the Rx and Tx paths of the RF branch can compensate for the user equipment-related transfer function in the phase and / or time domain associated with the Rx and Tx paths of the RF branch.

[0387] In some, but not all, examples, performing relative phase and / or amplitude calibration between the Rx and Tx paths of the RF branch includes applying precoding to the Tx signal to compensate for the user-dependent transfer function in the phase and / or time domain associated with the Rx and Tx paths of the RF branch.

[0388] In some, but not all, examples, relative phase calibration includes delivering multiple timing offsets to the Rx and Tx paths of the RF branch such that the phase difference between the Rx and Tx paths of the RF branch is below a threshold.

[0389] In some, but not all, examples, relative amplitude calibration involves delivering multiple power offsets to the Rx and Tx paths of the RF branch such that the amplitude difference between the Rx and Tx paths of the RF branch is below a threshold.

[0390] In some, but not all, examples, the RF branch covering the first frequency band is valid and fully calibrated if the phase and / or amplitude between the RX and TX paths for two or more antenna ports of the RF branch are reciprocal.

[0391] In some, but not all, examples, the validity of the RF branch covering the first frequency band is based at least in part on at least one of the following: RF front-end reconfiguration, channel coherence; UE movement and / or rotation; time since the RF branch covering the first frequency band was last calibrated; RF front-end reconfiguration.

[0392] At block 814, method 800 includes: determining the number of valid RF branches covering the first frequency band based on the identifiers of one or more valid RF branches covering the first frequency band.

[0393] At block 816, method 800 includes: determining the number of available antenna ports covering the first frequency band.

[0394] In the example, box 816 includes: determining whether antenna ports covering the first frequency band and connected to the RF branch are available for each valid RF branch. Therefore, in some, but not necessarily all, examples, the number of available antenna ports covering the first frequency band is equal to the total number of available antenna ports connected to the valid RF branches.

[0395] In some, but not all, examples, determining the number of available ports covering the first frequency band includes: determining the number of antenna ports of the UE covering the first frequency band; and, for example, determining, by another operation, how many of the antenna ports covering the first frequency band are in use. The number of antenna ports covering the first frequency band is determined by subtracting the number of antenna ports covering the first frequency band in use from the number of antenna ports in use.

[0396] In some, but not all, examples, determining whether an antenna port connected to a valid RF branch is available includes, for example, determining whether the antenna port is in use through another operation. If the antenna port is not in use (e.g., through another operation), then the antenna port is available.

[0397] Other operations may include: multiple RAT DC, UL-CA, non-standalone 5G / 6G, or another operation.

[0398] At block 818, method 800 includes: determining the maximum number of available antenna ports for transmission within a first frequency band.

[0399] This determination is based at least in part on the number of effective RF branches covering the first frequency band and the number of antenna ports covering the first frequency band.

[0400] In some, but not all, examples, if the number of available antenna ports covering the first frequency band is equal to or greater than the number of effective RF branches covering the first frequency band, and if all available antenna ports covering the first frequency band can be connected to all effective RF branches, then the maximum number of available antenna ports for transmission within the first frequency band is equal to the number of effective RF branches covering the first frequency band.

[0401] In some, but not all, examples, the maximum number of available antenna ports for transmission within the first frequency band is equal to the lower of the determined number of effective RF branches covering the first frequency band and the determined number of available antenna ports covering the first frequency band.

[0402] In some, but not all, examples, method 800 includes determining at least one of the following: the maximum number of fully calibrated antenna ports available for transmission; or the maximum number of partially calibrated antenna ports available for transmission.

[0403] The maximum number of fully calibrated antenna ports available for transmission and / or the maximum number of partially calibrated antenna ports available for transmission depends on the possible combinations of antenna ports used for transmission.

[0404] In some, but not all, examples, determining the maximum number of fully calibrated antenna ports available and / or the maximum number of partially calibrated antenna ports available includes determining the difference between one or more dynamic characteristics of a first antenna port out of two or more antenna ports and one or more corresponding dynamic characteristics of a second antenna port out of two or more antenna ports. This difference is determined at least in part based on a comparison of a downlink reference signal measurement taken at the first antenna port and a downlink reference signal measurement taken at the second antenna port.

[0405] In some, but not all, examples, determining the maximum number of fully calibrated antenna ports available and / or the maximum number of partially calibrated antenna ports available involves determining the relative phase and / or amplitude difference between two or more antenna ports. This determination is based on a comparison of one or more downlink reference signals from a first set of downlink reference signals.

[0406] In some, but not all, examples, determining the maximum number of fully calibrated antenna ports available and / or the maximum number of partially calibrated antenna ports available includes determining the difference between one or more dynamic characteristics of a first combination of two or more antenna ports and one or more corresponding dynamic characteristics of a second combination of two or more antenna ports. This difference is determined at least in part based on a comparison of measurements of a downlink reference signal taken at the first combination of two or more antenna ports and measurements of the downlink reference signal taken at the second combination of two or more antenna ports. The downlink reference signal may be the same or different downlink reference signals.

[0407] At box 820, the method includes: generating a multi-antenna port calibration capability indicator. In the example, the multi-antenna port calibration capability indicator is the multi-antenna port calibration capability indicator as described above.

[0408] The generation of a multi-antenna port calibration capability indicator includes: generating an indication of the number of available antenna ports for transmission within the first frequency band.

[0409] In some, but not all, examples, for a combination of multiple supported antenna ports, the multi-antenna port calibration capability indicator indicates at least one of the following: the maximum number of fully calibrated antenna ports available for transmission within the first frequency band, and the maximum number of partially calibrated antenna ports available for transmission within the first frequency band.

[0410] In some, but not all, examples, the multi-antenna port calibration capability indicator indicates the number of antenna ports connected to a valid RF branch that can be used for transmission.

[0411] Therefore, the multi-antenna port calibration capability indicator identifies which RF branches can be calibrated.

[0412] At box 822, method 800 includes sending a multi-antenna port calibration capability indicator to the network. In some examples, box 826 is performed as box 302 of method 300 and / or box 602 of method 600.

[0413] Therefore, Figure 8 illustrates a method 800 for determining the multi-antenna port calibration capability of a UE, the method comprising:

[0414] Obtain a definitive indication for initiating multi-antenna port calibration capability;

[0415] Based on this instruction, initiate the determination of multi-antenna port calibration capability;

[0416] Use one or more antenna ports to measure one or more reference signals;

[0417] The measurement of the first measurement reference signal is compared with the measurement of the second measurement reference signal;

[0418] Determine the difference between one or more dynamic characteristics of the first antenna port among two or more antenna ports and one or more corresponding dynamic characteristics of the second antenna port among two or more antenna ports;

[0419] Identify one or more valid RF branches covering the first frequency band;

[0420] Coverage is determined based on the identification of one or more valid RF branches covering the first frequency band;

[0421] The number of effective RF branches in the first frequency band;

[0422] Determine the number of available antenna ports covering the first frequency band;

[0423] Determine the maximum number of available antenna ports for transmission within the first frequency band;

[0424] Generate multi-antenna port calibration capability indicators; and

[0425] Send a multi-antenna port calibration capability indicator to the network.

[0426] Figure 8A and Figure 8B The diagram illustrates the signaling diagram used in the embodiment. Specifically, Figure 8A and Figure 8B The diagram illustrates an example signaling flowchart for reporting TX antenna port calibration capabilities for PUSCH / PUSCH / PUCCH.

[0427] Figure 8BThe signaling diagram is directly from Figure 8A The signaling diagram continues.

[0428] At box 802, UE 140 indicates TX antenna port calibration inter-group capability information for non-codebook-based PUSCH and / or PUCCH and / or ULSRS resource transmissions for the network. TX antenna port calibration inter-group capability may indicate at least one of the following:

[0429] The number of TX antenna port calibration groups;

[0430] The number of UE logical TX antenna ports per TX antenna port calibration group;

[0431] The number of UE physical TX antenna elements / antenna connectors / radiators per TX antenna port calibration group;

[0432] alternative sites

[0433] Number of antenna elements / antenna connectors / radiators per horizontal dimension;

[0434] Number of antenna elements / antenna connectors / radiators per azimuth dimension;

[0435] Polarization order: the number of polarization domains.

[0436] For each TX antenna port calibration group, the TX calibration information defining the UE TX calibration capability between the same antenna port group and / or different antenna port groups is as follows:

[0437] Fully calibrated TX antenna ports in phase and / or amplitude within and / or between different antenna port groups, or

[0438] Partially calibrated TX antenna ports in phase and / or amplitude within an antenna port group and / or between different antenna port groups. In other words, portions / sets of TX antenna ports are calibrated in amplitude / phase relative to each other within a group or between different antenna port groups.

[0439] Uncalibrated antenna ports in phase and / or amplitude within and / or between different antenna port groups.

[0440] TX antenna port calibration group-specific information can encapsulate all calibration combinations between different possible antenna port calibration groups.

[0441] Alternatively, symmetrical TX calibration information can be assumed between different antenna port calibration groups, so that only one TX calibration information between the two groups is included as part of the TX calibration capability indication.

[0442] When UE 140 reports antenna port calibration information that needs to be fully or partially calibrated between two or more antenna port calibration groups, it can be assumed that UE 140 can simultaneously transmit (multiple) single antenna port UL SRS resources via the UE logical antenna port and corresponding physical antenna element / connector associated with different antenna port calibration groups.

[0443] When two or more groups share the same inter-antenna port calibration information, all combinations between different groups need to share the same calibration information. For example, in the case of three different groups (i.e., group #0, group #1, and group #2): Group #0 needs to have the same inter-antenna port calibration information as both group #1 and group #2. Similarly, group #1 needs to share the same inter-antenna port calibration information between group #0 and group #1. Furthermore, group #2 needs to have the same inter-group antenna port calibration information as both group #0 and group #1.

[0444] For example, UE 140 indicates via capability (e.g., RRC or MAC level) signaling that it has TX antenna port group calibration capability for non-codebook-based PUSCH, wherein UE 140 has 4 TX antenna groups, wherein the first antenna port group has fully calibrated antenna ports, the second antenna port group has fully calibrated antenna ports, the third antenna port group has partially calibrated antenna ports, and the fourth antenna port group has uncalibrated antenna ports.

[0445] At box 804, based on the TX antenna port group calibration capability information indicated by UE 140, the network determines (multiple) ULSRS single antenna port resources such that one or more antenna port groups that report sharing the same TX antenna port group calibration information (i.e., fully calibrated or partially calibrated) are determined as a single antenna port UL SRS resource.

[0446] How many actual UE logical TX antenna ports are captured within a single antenna port SRS resource depends on the network (depending on the reported capabilities).

[0447] The network can configure UE 140 with UL SRS resource configuration, where:

[0448] One or more UL SRS resource sets are configured with a new information element, “calibration information,” that uses a “non-codebook” and is associated with TX antenna port group calibration information (i.e., full calibration or partial calibration).

[0449] All single-antenna port UL SRS resources within each UL SRS resource set share the same TX antenna port group calibration information.

[0450] Assume that UE 140 has the ability to simultaneously transmit all single-antenna-port UL SRS resources within the UL SRS resource set.

[0451] It is assumed that antenna port calibration groups with calibration information set to "uncalibrated" cannot be used for non-codebook-based SRS / PUSCH / PUCCH transmissions. Therefore, the UL SRS resource set cannot have calibration information set to "uncalibrated".

[0452] In one implementation example of the 6G variant of this standard, the UL SRS resource set-specific calibration information element can be implemented as (underlined).

[0453]

[0454] At box 810, after receiving UL SRS configuration (e.g., via RRC) / activation (e.g., via MAC) / indication (e.g., via DCI), UE 140 should determine single-antenna-port UL SRS transmission as follows:

[0455] When the UL SRS resource set is configured to use "Non-codebook" and calibration information = "Fully Calibrated", the UE 140 determines the precoder for transmitting the single-antenna-port ULSRS resource based on DL measurements of the associated non-zero power (NZP) channel state information (CSI) resource, ensuring that the phase and / or amplitude are fully calibrated across different UE TX physical antenna elements. This also applies to non-codebook-based PUSCH / PUCCH transmissions.

[0456] When the UL SRS resource set is configured to use "non-codebook" and calibration information = "partial calibration", UE 140 determines the precoder for transmitting single-antenna-port ULSRS resources based on DL measurements of the associated non-zero power (NZP) channel state information (CSI) resources, such that the phase and / or amplitude are partially calibrated across different UE TX physical antenna elements. This also applies to non-codebook-based PUSCH / PUCCH transmissions.

[0457] To enable handheld UEs to support non-codebook-based UL MIMO, each configurable antenna must be connected to an RF branch where the phase and amplitude are fully reciprocal between the Rx and Tx paths. Antennas implemented on a handheld UE will have different unknown dynamic characteristics, such as directivity, complex impedance, and angular direction of maximum gain. The UE can quantify these differences in antenna characteristics through baseband-domain DL measurements. This may require specific DL reference signals or UL gaps to determine these differences. However, baseband-domain DL characterization is only useful for non-codebook-based UL MIMO if the UE can ensure that the phase and amplitude differences measured by DL can be applied to the antenna used by the UL signal. Ensuring Rx and Tx reciprocity will require additional hardware in the UE to perform these calibrations, as the calibrations must be performed using a given periodicity due to the dynamic behavior of the handheld UE influenced by the user.

[0458] The following describes the process by which a UE selects the optimal RF branch / antenna combination for non-codebook-based UL MIMO.

[0459] The UE receives the txConfig for “non-codebook” UL MIMO via DCI.

[0460] The UE will initiate its Rx and Tx calibration for each RF branch, where each RF branch can be connected to one or more antennas.

[0461] The UE will monitor the appropriate DL reference signal and / or the authorized UL gap to perform calibration.

[0462] The UE will prioritize invalid RF branches and antenna combinations that have the best reception and calibration RSPR values, because the UE may not know whether it will be able to calibrate all of its RF branches / antenna combinations. The effectiveness of RF branch / antenna calibration depends on channel coherence and / or UE movement / rotation. Therefore, it depends on the time since the combination was last calibrated.

[0463] The UE determines the effective number of RF branches / antenna combinations for non-codebook-based UL MIMO and links them to the defined calibration group.

[0464] As mentioned above, the UE sends a signal to notify the current calibration status.

[0465] Figure 3 The diagram illustrates a method executed by the system, which includes interactions between different system entities. Figure 3 The diagram also illustrates a set of individual methods executed separately by different system entities.

[0466] Figure 9AAn example of a controller 900 suitable for devices 110, 150 is illustrated. The implementation of controller 900 can be a controller circuit system. Controller 900 can be implemented solely in hardware, have certain aspects in software comprising only firmware, or be a combination of hardware and software (including firmware). The controller can be a controller for a device or equipment such as terminal node 110 (e.g., UE) or network node 120 (e.g., gNB).

[0467] In this example, the controller may be included in the electronic device. Therefore, in this example, an electronic device including a controller as described herein is provided.

[0468] The controller 900 can be implemented as a controller circuit system. The controller 900 can be implemented solely in hardware, have certain aspects in software consisting only of firmware, or be a combination of hardware and software (including firmware).

[0469] like Figure 9A As shown, the controller 900 can be implemented using instructions that enable hardware functions, for example, by using executable instructions 906 in a general-purpose or special-purpose processor 902, which can be stored on a machine-readable storage medium (disk, memory, etc.) for execution by such processor 902.

[0470] Processor 902 is configured to read from and write to memory 904. Processor 902 may also include an output interface and an input interface, through which data and / or commands are output by processor 902 and through which data and / or commands are input to processor 902.

[0471] Memory 904 stores instructions, programs, or code 906 that control the operation of devices 110 and 120 when loaded into processor 902. The computer program instructions, programs, or code 906 provide logic and routines that enable devices 110 and 120 to perform the methods shown in the figures. By reading memory 904, processor 902 is configured to load and execute the instructions, programs, and code 906.

[0472] In some examples, controller 900 is UE 110 or is included therein. In some such examples, devices 110, 120 include:

[0473] At least one processor 902; and

[0474] At least one memory 904 storing instructions, which are processed by at least one processor 902

[0475] When executed, the device shall at least:

[0476] Sends to the network an antenna port group calibration capability associated with non-codebook-based precoding for uplink communication between the UE and the network, wherein the antenna port group calibration capability indicates the UE's ability to perform relative phase and / or amplitude calibration between multiple antenna ports of the UE;

[0477] Send an antenna port capability indicator to the network, which includes an indication of the size and / or arrangement of the UE's antenna ports;

[0478] Receive configuration information from network node 120 of the network, wherein the configuration information includes one or more antenna port supergroups and an indication to use the supergroup as a single uplink resource, wherein the antenna port supergroup includes one or more antenna port groups, and wherein an inter-group calibration indicator for the antenna port groups within the antenna port supergroup indicates full calibration or partial calibration.

[0479] The precoding for uplink transmission between the UE and the network is determined based on the received configuration information;

[0480] Use the determined precoding for the supergroup to precode at least one reference signal to be transmitted using the supergroup;

[0481] At least one precoding reference signal is sent to the network via a supergroup associated with the precoding.

[0482] Receive a supergroup indication from the network, which indicates which of one or more antenna port supergroups will be used for uplink transmission between the UE and the network; and

[0483] Use the indicated supergroup to enable uplink transmission between the UE and the network.

[0484] In some examples, controller 900 is UE 110 or is included therein. In some such examples, devices 110, 120 include:

[0485] At least one processor 902; and

[0486] At least one memory 904 stores instructions that, when executed by at least one processor 902, cause the device to at least:

[0487] Obtain an indication to determine the capability to initiate antenna port group calibration;

[0488] Determine the antenna port group calibration capability;

[0489] Use one or more antenna ports to measure one or more reference signals;

[0490] The measurement of the first measurement reference signal is compared with the measurement of the second measurement reference signal;

[0491] Determine the difference between one or more dynamic characteristics of the first antenna port among two or more antenna ports and one or more corresponding dynamic characteristics of the second antenna port among two or more antenna ports;

[0492] Identifies one or more valid combinations of two or more antenna ports;

[0493] Determine at least one of the following: one or more preferred combinations of one or more antenna ports, or one or more candidate combinations of one or more antenna ports;

[0494] Associate one or more preferred combinations and / or one or more candidate combinations of antenna ports with one or more groups of antenna ports;

[0495] Determine the intra-group calibration indicator for one or more antenna port groups;

[0496] Determine the inter-group calibration indicator for a combination of two or more antenna port groups;

[0497] Generate antenna port group calibration capability indicators; and

[0498] Sends an antenna port group calibration capability indicator to the network.

[0499] In some examples, controller 900 is or is included in network node 120. In some such examples, devices 110, 120 include:

[0500] At least one processor 902; and

[0501] At least one memory 904 stores instructions that, when executed by at least one processor 902, cause the device to at least:

[0502] The ability to receive antenna port group calibration associated with non-codebook-based precoding for uplink communication between the UE and the network;

[0503] Receive an antenna port capability indicator from the UE, which includes an indication of the size and / or arrangement of the UE's antenna ports;

[0504] One or more antenna port supergroups are determined based on the calibration capability of at least one received antenna port group, wherein the antenna port supergroup comprises one or more antenna port groups, and wherein inter-group calibration indicators of antenna port groups within the antenna port supergroup indicate full calibration or partial calibration.

[0505] Send configuration information to the UE, which includes one or more antenna port supergroups and an indication to use the supergroup as a single uplink resource;

[0506] Receive at least one precoded reference signal from the UE;

[0507] Channel estimation is determined based on the received precoded reference signal;

[0508] Channel estimation is used to determine which of one or more antenna port supergroups will be used for uplink transmission between the UE and the network.

[0509] Send a supergroup indication to the UE, which indicates which of one or more antenna port supergroups will be used for UL transmission between the UE and the network; and

[0510] Use the indicated supergroup to enable UL transmission between the UE and NW.

[0511] In some examples, there exists a (computer-implemented) system comprising a UE and a network node 120, wherein the UE and / or network node 120 includes components for the following:

[0512] The transmission of antenna port group calibration capability, associated with non-codebook-based precoding for uplink communication between the UE and the network, to the network, wherein the antenna port group calibration capability instructs the UE to perform relative phase and / or summation between multiple antenna ports of the UE.

[0513] Or the ability to calibrate amplitude;

[0514] The transmission of an antenna port capability indicator to the network is controlled, and the indicator includes an indication of the size and / or arrangement of the UE's antenna ports;

[0515] The control configuration information is received from the network node 120 of the network, wherein the configuration information includes one or more antenna port supergroups and an indication to use the supergroup as a single uplink resource, wherein the antenna port supergroup includes one or more antenna port groups, and wherein the inter-group calibration indicator of the antenna port groups within the antenna port supergroup indicates full calibration or partial calibration.

[0516] Control is used to determine the precoding for uplink transmissions between the UE and the network based on the received configuration information;

[0517] The control uses the determined precoding for the supergroup to precode at least one reference signal to be transmitted using the supergroup;

[0518] Control the transmission of at least one precoded reference signal to the network through a supergroup associated with the precoded signal;

[0519] The control supergroup indication received from the network indicates which of one or more antenna port supergroups will be used for uplink transmission between the UE and the network; and

[0520] Use the indicated supergroup to enable uplink transmission between the UE and the network.

[0521] In some examples, there exists a (computer-implemented) system comprising a UE and a network node 120, wherein the UE and / or network node 120 includes components for the following:

[0522] The control obtains the indication used to initiate the determination of the antenna port group calibration capability;

[0523] Initiating the determination of the calibration capability of the control antenna port group;

[0524] Control the measurement of one or more reference signals using one or more antenna ports;

[0525] The measurement of the first measurement reference signal is compared with the measurement of the second measurement reference signal;

[0526] Determining the difference between one or more dynamic characteristics of the first antenna port among two or more antenna ports and one or more corresponding dynamic characteristics of the second antenna port among two or more antenna ports;

[0527] An identifier that controls one or more valid combinations of two or more antenna ports;

[0528] Controlling the determination of at least one of the following: one or more preferred combinations of one or more antenna ports, or one or more candidate combinations of one or more antenna ports; controlling the association of one or more preferred combinations and / or one or more candidate combinations of antenna ports with one or more groups of antenna ports;

[0529] Controls the determination of intra-group calibration indicators for one or more antenna port groups;

[0530] Controls the determination of inter-group calibration indicators for combinations of two or more antenna port groups;

[0531] The generation of the control antenna port group calibration capability indicator; and

[0532] Control the transmission of the antenna port group calibration capability indicator to the network.

[0533] like Figure 9BAs shown, instructions, programs, or code 906 can reach devices 110 and 120 (not shown) via any suitable delivery mechanism 908. The delivery mechanism 908 can be, for example, a machine-readable medium, a computer-readable medium, a non-transient computer-readable storage medium, a computer program product, a memory device, a recording medium such as an optical disc read-only memory (CD-ROM) or a digital versatile optical disc (DVD) or a solid-state memory, or an article of manufacture that includes or tangibly embodies the computer program 906. The delivery mechanism can be a signal configured to reliably transmit the computer program 906. Devices 110 and 120 can propagate or transmit the computer program 906 as a computer data signal.

[0534] The term “non-transient” as used in this article refers to the limitation on the medium itself (i.e., tangible, not signal), rather than the limitation on the persistence of data storage (e.g., RAM vs. ROM).

[0535] A computer program instruction for causing a device to perform at least the following, or for performing at least the following:

[0536] Sends to the network an antenna port group calibration capability associated with non-codebook-based precoding for uplink communication between the UE and the network, wherein the antenna port group calibration capability indicates the UE's ability to perform relative phase and / or amplitude calibration between multiple antenna ports of the UE;

[0537] Send an antenna port capability indicator to the network, which includes an indication of the size and / or arrangement of the UE's antenna ports;

[0538] Receive configuration information from network node 120 of the network, wherein the configuration information includes one or more antenna port supergroups and an indication to use the supergroup as a single uplink resource, wherein the antenna port supergroup includes one or more antenna port groups, and wherein an inter-group calibration indicator for the antenna port groups within the antenna port supergroup indicates full calibration or partial calibration.

[0539] The precoding for uplink transmission between the UE and the network is determined based on the received configuration information;

[0540] Use the determined precoding for the supergroup to precode at least one reference signal to be transmitted using the supergroup;

[0541] At least one precoding reference signal is sent to the network via a supergroup associated with the precoding.

[0542] Receive a supergroup indication from the network, which indicates which of one or more antenna port supergroups will be used for uplink transmission between the UE and the network; and

[0543] Use the indicated supergroup to enable uplink transmission between the UE and the network.

[0544] A computer program instruction for causing a device to perform at least the following, or for performing at least the following:

[0545] Obtain an indication to determine the capability to initiate antenna port group calibration;

[0546] Determine the antenna port group calibration capability;

[0547] Use one or more antenna ports to measure one or more reference signals;

[0548] The measurement of the first measurement reference signal is compared with the measurement of the second measurement reference signal;

[0549] Determine the difference between one or more dynamic characteristics of the first antenna port among two or more antenna ports and one or more corresponding dynamic characteristics of the second antenna port among two or more antenna ports;

[0550] Identifies one or more valid combinations of two or more antenna ports;

[0551] Determine at least one of the following: one or more preferred combinations of one or more antenna ports, or one or more candidate combinations of one or more antenna ports;

[0552] Associate one or more preferred combinations and / or one or more candidate combinations of antenna ports with one or more groups of antenna ports;

[0553] Determine the intra-group calibration indicator for one or more antenna port groups;

[0554] Determine the inter-group calibration indicator for a combination of two or more antenna port groups;

[0555] Generate antenna port group calibration capability indicators; and

[0556] Sends an antenna port group calibration capability indicator to the network.

[0557] A computer program instruction for causing a device to perform at least the following, or for performing at least the following:

[0558] The ability to receive antenna port group calibration associated with non-codebook-based precoding for uplink communication between the UE and the network;

[0559] Receive an antenna port capability indicator from the UE, which includes an indication of the size and / or arrangement of the UE's antenna ports;

[0560] One or more antenna port supergroups are determined based on the calibration capability of at least one received antenna port group, wherein the antenna port supergroup comprises one or more antenna port groups, and wherein inter-group calibration indicators of antenna port groups within the antenna port supergroup indicate full calibration or partial calibration.

[0561] Send configuration information to the UE, which includes one or more antenna port supergroups and an indication to use the supergroup as a single uplink resource;

[0562] Receive at least one precoded reference signal from the UE;

[0563] Channel estimation is determined based on the received precoded reference signal;

[0564] Channel estimation is used to determine which of one or more antenna port supergroups will be used for uplink transmission between the UE and the network.

[0565] Send a supergroup indication to the UE, which indicates which of one or more antenna port supergroups will be used for UL transmission between the UE and the network; and

[0566] Use the indicated supergroup to enable UL transmission between the UE and NW.

[0567] Computer program instructions can be included in a computer program, a non-transitory computer-readable medium, a computer program product, or a machine-readable medium. In some, but not all, examples, computer program instructions may be distributed across more than one computer program.

[0568] Although memory 904 is illustrated as a single component / circuit system, it can also be implemented as one or more separate component / circuit systems, some or all of which may be integrated / removable and / or provide permanent / semi-permanent / dynamic / cache storage.

[0569] Although processor 902 is illustrated as a single component / circuit system, it can also be implemented as one or more separate component / circuit systems, some or all of which may be integrated / remote. Processor 902 may be a single-core processor or a multi-core processor.

[0570] The aforementioned public requirement is to signal new capabilities with new information elements, which will be implemented in the standard 6G version.

[0571] In addition, the standard 6G version will have new information elements in the SRS configuration within the SRS resource set or SRS resource definition.

[0572] In addition, the 6G version will have corresponding configuration information in the dedicated terms for SRS and the terms for PUSCH based on non-codebook, which define the UE procedure for sending the corresponding UL SRS resources.

[0573] References to “computer-readable storage medium,” “computer program product,” “computer program tangibly embodied,” or “controller,” “computer,” “processor,” etc., should be understood to encompass not only computers with different architectures (such as single / multiprocessor architectures and sequential (von Neumann) / parallel architectures) but also special-purpose circuits, such as field-programmable gate arrays (FPGAs), special-purpose circuits (ASICs), signal processing devices, and other processing circuitry systems. References to computer programs, instructions, code, etc., should be understood to encompass software or firmware used in programmable processors, such as the programmable content of hardware devices, whether instructions for the processor or configuration settings for fixed-function devices, gate arrays, or programmable logic devices.

[0574] As used in this application, the term "circuit system" may refer to one or more or all of the following:

[0575] (a) Implementations only in hardware circuit systems (such as implementations only in analog and / or digital circuit systems) and

[0576] (b) A combination of hardware circuitry and software, such as (if applicable):

[0577] (i) A combination of (multiple) analog and / or digital hardware circuits and software / firmware, and

[0578] (ii) Any portion of a hardware processor (including a digital signal processor), software, and one or more memories having software, which work together to enable a device such as a mobile phone or server to perform various functions, and (c) (a) hardware circuitry and / or (a) processors, such as (a) microprocessors or a portion thereof, which require software (e.g., firmware).

[0579] The software can be used to perform operations, but it may not be required when no operation is needed.

[0580] This definition of circuit system applies to all uses of the term in this application (including in any claim). As another example, as used herein, the term circuit system also covers only the implementation of hardware circuitry or processors and their accompanying software and / or firmware. For example, if applicable to elements of the claims, the term circuit system also covers baseband integrated circuits for mobile devices, or similar integrated circuits in servers, cellular network devices, or other computing or networking devices.

[0581] The boxes shown in the accompanying drawings may represent steps in a method and / or code segments in a computer program [REF3]. The illustration of a specific order of boxes does not necessarily indicate a required or preferred order for the boxes, and the order and arrangement of the boxes may vary. Furthermore, some boxes may be omitted.

[0582] As used herein, "module" refers to a unit or device that does not include certain parts / components added by the terminal manufacturer or user. Devices 110 and 120 may be modules, for example. The controller 900 of devices 110 and 120 may be a module, for example.

[0583] Where a structural feature has been described, it can be replaced by a component that performs one or more functions of the structural feature, whether or not the function or these functions are described explicitly or implicitly.

[0584] Radio frequency circuitry and antennas can be configured to operate in multiple resonant frequency bands. For example, operating frequency bands may include (but are not limited to) Long Term Evolution (LTE) (US) (734–746 MHz and 869–894 MHz), Long Term Evolution (LTE) (Other World) (791–821 MHz and 925–960 MHz), AM radio (0.535–1.705 MHz); FM radio (76–108 MHz); Bluetooth (2400–2483.5 MHz); Wireless Local Area Network (WLAN) (2400–2483.5 MHz); HiperLAN (5150–5850 MHz); and more. Global Positioning System (GPS) (1570.42-1580.42MHz); US-GSM 850 (824-894MHz) and 1900 (1850-1990MHz); European EGSM 900 (880-960MHz) and 1800 (1710-1880MHz); European Wideband Code Division Multiple Access (EU-WCDMA) 900 (880-960MHz); Personal Communication Network (PCN / DCS) 1800 (1710-1880MHz); US-WCDMA 1700 (transmit: 1710-1755MHz (receive: 2110-2155MHz) and 1900 (1850-1990MHz); Wideband Code Division Multiple Access (WCDMA) 2100 (transmit: 1920-1980MHz, receive: 2110-2180MHz); Personal Communication Service (PCS) 1900 (1850-1990MHz); Time Division Synchronous Code Division Multiple Access (TD-SCDMA) (1900MHz to 1920MHz, 2010MHz to 2025MHz), Ultra Wideband (UWB) lower limit (3100-4900MHz); UWB upper limit (6000-10600MHz); Handheld Digital Video Broadcasting (DVB-H) (470-702MHz); DVB-H USA (1670-1675MHz); Global Digital Radio (DRM) (0.15-30MHz); Global Microwave Access Interoperability (WiMax) (2300-2400MHz, 2305-2360MHz, 2496-2690MHz, 3300-3400MHz, 3400-3800MHz, 5250-5875MHz); Digital Audio Broadcasting (DAB) (174.928-239.2MHz, 1452.96-1490.62MHz); Radio Frequency Identification (RFID LF) (0.125-0.134MHz); Radio Frequency Identification (RFID HF) (13.56-13.56MHz).56MHz); Ultra-high frequency (UHF) radio frequency identification (RFID) (433MHz, 865-956MHz, 2450MHz), and frequency allocations for 5G may include, for example, 700MHz, 410MHz-7125MHz (FR1), 24250MHz-52600MHz (FR2), 3.6-3.8GHz, 24.25-27.5GHz, 31.8-33.4GHz, 37.45-43.5GHz, 66-71GHz, mmWave, and >24GHz).

[0585] The above example serves as an enabling component for the following applications:

[0586] Automotive systems; telecommunications systems; electronic systems, including consumer electronics; distributed computing systems; media systems for generating or rendering media content, including audio, video, and audiovisual content, as well as mixed, mediated, virtual, and / or augmented reality; personal systems, including personal health systems or personal fitness systems; navigation systems; user interfaces, also known as human-machine interfaces; networks, including cellular, non-cellular, and optical networks; ad-hoc networks; the Internet of Things; the Internet of Things; virtualized networks; and related software and services.

[0587] According to the examples of this disclosure, the device can be provided in an electronic device (e.g., a mobile terminal). However, it should be understood that a mobile terminal is merely one example of an electronic device that will benefit from implementations of this disclosure, and therefore should not be considered as limiting the scope of this disclosure. While in some implementation examples, the device can be provided in mobile terminals, other types of electronic devices, such as, but not limited to: mobile communication devices, portable electronic devices, wearable computing devices, portable digital assistants (PDAs), pagers, mobile computers, desktop computers, televisions, gaming devices, laptop computers, cameras, video recorders, GPS devices, and other types of electronic systems that can readily employ examples of this disclosure. Furthermore, devices can readily employ examples of this disclosure regardless of their intention to provide mobility.

[0588] The term "comprise" as used in this document has an inclusive rather than exclusive meaning. That is, any reference to X that includes Y means that X may include only one Y or may include more than one Y. If the intention is to use "comprise" with an exclusive meaning, it will be clearly stated in the context by referring to "comprising onlyone" or using "consisting".

[0589] In this specification, “connection,” “coupling,” and “communication,” and their derivatives, refer to operational connection / coupling / communication. It should be understood that any number or combination of intermediate components (including no intermediate components) may be present to provide direct or indirect connection / coupling / communication. Any such intermediate component may include hardware and / or software components.

[0590] As used herein, the term "determine" (and its grammatical variations) can include at least: calculating, processing, deriving, measuring, investigating, identifying, searching (e.g., searching in a table, database, or other data structure), confirming, etc. Furthermore, "determine" can include receiving (e.g., receiving information), accessing (e.g., accessing data in memory), obtaining, etc. Additionally, "determine" can include parsing, selecting, picking, building, etc.

[0591] Various examples are referenced in this specification. Descriptions of features or functions associated with examples indicate that such features or functions exist in that example. The use of the terms "example," "for example," "may," or "may" in the text indicates (whether explicitly stated or not) that such features or functions exist at least in the described example, whether or not they are described as examples, and that they may, but not necessarily, exist in some or all other examples. Therefore, "example," "for example," "may," or "may" refers to a specific instance of a class of examples. An instance's property can be a property of only that instance, a property of the class, or a property of a subclass of a class that includes some, but not all, instances of that class. Therefore, it is implicitly disclosed that features described with reference to one example and not another may, where possible, be used as part of a work composition in that other example, but are not necessarily required to be used in that other example.

[0592] As used herein, “at least one of the following:” and “at least one of…” and similar wording (where a list of two or more elements is connected by “and” or “or”) means at least any one of these elements, or at least any two or more of these elements, or at least all of these elements.

[0593] Although examples have been described with reference to various examples in the preceding paragraphs, it should be understood that modifications may be made to the given examples without departing from the scope of the claims.

[0594] The features described above can be used in combinations other than those explicitly described above.

[0595] Although some features have been described with reference to certain characteristics, these functions can be performed by other features, whether or not they are described.

[0596] Descriptions of features (such as means or components of means) additionally configured to perform a function or for performing a function should be considered as disclosing a method for performing that function. For example, additionally, descriptions of means configured to perform one or more actions or for performing one or more actions should be considered as disclosing a method for performing those one or more actions with or without the means.

[0597] Although features have been described with reference to some examples, these features may also exist in other examples, whether or not they are described.

[0598] The terms “a,” “an,” or “the” as used in this document have an inclusive rather than exclusive meaning. That is, unless the context explicitly indicates otherwise, any reference to X that includes a (a) / an / the Y implies that X may include only one Y or may include more than one Y. If the use of “a,” “an,” or “the” with an exclusive meaning is intended, it will be explicitly stated in the context. In some cases, the use of “at least one” or “one or more” may be used to emphasize an inclusive meaning, but the omission of these terms should not be taken as an inference of any exclusive meaning.

[0599] The presence of a feature (or combination of features) in a claim is a reference to that feature or combination of features itself, as well as a reference to a feature (equivalent feature) that achieves substantially the same technical effect. Equivalent features include, for example, features that are variations and achieve substantially the same result in substantially the same manner. Equivalent features include, for example, features that perform substantially the same function in substantially the same manner to achieve substantially the same result.

[0600] In this specification, various examples have been referenced to describe the characteristics of the examples using adjectives or adjective phrases. Such descriptions of characteristics associated with examples indicate that the characteristic exists exactly as described in some examples, and substantially as described in others.

[0601] The foregoing description illustrates some examples of this disclosure; however, those skilled in the art will recognize possible alternative structural and methodological features that provide functionality equivalent to the specific examples of such structures and features described herein, and for the sake of brevity and clarity, these alternative structural and methodological features have been omitted from the foregoing description. Nevertheless, the foregoing description should be understood to implicitly include references to such alternative structural and methodological features that provide equivalent functionality, unless such alternative structural or methodological features are expressly excluded in the foregoing description of the examples of this disclosure.

[0602] Although the features deemed important are noted in the foregoing specification, the applicant may seek protection by means of the claims for any patentable feature or combination of features mentioned above and / or shown in the figures, whether or not they are emphasized.

[0603] Example implementation:

[0604] Example 1. A method performed by a user equipment (UE), the method comprising: determining an antenna port group calibration capability of the UE, wherein the antenna port group calibration capability depends on at least one of the following: phase calibration or amplitude calibration of one or more antenna port groups of the UE, wherein determining the multi-antenna port calibration capability comprises: using one or more antenna ports to measure one or more reference signals.

[0605] Example 2. According to the method of Example 1, determining the multi-antenna port calibration capability includes: generating a multi-antenna port calibration capability indicator associated with a non-codebook-based precoding for uplink communication between the UE and the network, wherein the multi-antenna port calibration capability indicator indicates the UE's ability to perform relative phase and / or amplitude calibration between multiple antenna ports of the UE.

[0606] Example 3. The method according to Example 1 or 2, wherein determining the multi-antenna port calibration capability includes: using one or more antenna ports to measure one or more reference signals.

[0607] Example 4. According to the method of Example 3, determining the multi-antenna port calibration capability includes: measuring the symbols of one or more reference signals.

[0608] Example 5. The method according to any one of Examples 1 to 4, wherein determining the multi-antenna port calibration capability includes: comparing a measurement of a first measurement reference signal with a measurement of a second measurement reference signal, wherein the first reference signal is a downlink reference signal, and the second reference signal is at least one of the following: a different measurement reference signal; a reference signal measured at an antenna port different from the first measurement reference signal; an uplink reference signal; or a anticipated reference signal.

[0609] Example 6. According to the method of Example 5, determining the multi-antenna port precoding value includes: determining the difference between one or more dynamic characteristics of two or more antenna ports based at least in part on a comparison of measurements of one or more downlink reference signals measured at a first antenna port and a second antenna port.

[0610] Example 7. According to the method of Example 5, determining the multi-antenna port calibration capability includes: determining, at least in part, based on a comparison of measurements of one or more uplink reference signals measured at a first antenna port with measurements of one or more uplink reference signals measured at a second antenna port, the difference between one or more dynamic characteristics of the first antenna port and one or more corresponding dynamic characteristics of the second antenna port among the two or more antenna ports.

[0611] Example 8. The method according to Example 6 or 7, wherein one or more dynamic characteristics include at least one of the following: directivity; complex impedance; angular direction of maximum gain; phase; amplitude.

[0612] Example 9. The method according to any one of Examples 5 to 8, comprising: identifying one or more valid combinations of two or more antenna ports based at least in part on a comparison of a measurement of a first measurement reference signal and a measurement of a second measurement reference signal.

[0613] Example 10. According to the method of Example 9, the identification of one or more valid combinations of two or more antenna ports is based at least in part on: for multiple antenna ports of the two or more antenna ports, a comparison of the measured downlink reference signal at the antenna port with the measured uplink reference signal at one or more antenna ports.

[0614] Example 11. The method according to Example 9 or 10, wherein if the UE is able to perform relative phase and / or amplitude calibration between two or more antenna ports, the combination of two or more antenna ports is valid and its calibration capability is fully calibrated.

[0615] Example 12. The method according to any one of Examples 9 to 11, wherein if the UE is able to perform relative phase and / or amplitude calibration between subsets of two or more antenna ports, the combination of two or more antenna ports is valid and its calibration capability is partial calibration.

[0616] Example 13. The method according to any one of Examples 9 to 12, wherein if the UE is unable to perform relative phase and / or amplitude calibration between two or more antenna ports within the antenna port group, the combination of the two or more antenna ports is invalid and its calibration capability is uncalibrated.

[0617] Example 14. The method according to any one of Examples 9 to 13 includes determining one or more preferred combinations of one or more antenna ports based at least in part on one or more valid combinations identified among two or more antenna ports.

[0618] Example 15. The method according to any one of Examples 9 to 14 includes determining one or more candidate combinations of one or more antenna ports based at least in part on one or more valid combinations identified among two or more antenna ports.

[0619] Example 16. The method according to any one of Examples 9 to 15, wherein determining one or more preferred combinations of one or more antenna ports, and / or one or more candidate combinations of one or more antenna ports, is based on the calibration capability of one or more combinations of one or more antenna ports.

[0620] Example 17. According to the method of Example 16, determining one or more preferred combinations of one or more antenna ports, and / or determining one or more candidate combinations of one or more antenna ports includes: prioritizing one or more valid and partially calibrated combinations of one or more antenna ports as preferred combinations and / or candidate combinations; and / or prioritizing one or more invalid and uncalibrated combinations of one or more antenna ports as preferred combinations and / or candidate combinations.

[0621] Example 18. The method according to Example 16 or 17, wherein determining one or more preferred combinations of one or more antenna ports, and / or determining one or more candidate combinations of one or more antenna ports includes:

[0622] Measure the RSRP of one or more valid combinations of one or more antenna ports; and

[0623] Based on the measured RSRP, determine one or more preferred combinations of one or more antenna ports, and / or one or more candidate combinations of one or more antenna ports.

[0624] Example 19. The method according to any one of Examples 14 to 18 includes: associating one or more preferred combinations and / or one or more candidate combinations of antenna ports with one or more groups of antenna ports, wherein the group of antenna ports includes at least one or more combinations of its associated antenna ports.

[0625] Example 20. The method according to Example 19 includes: determining an intra-group calibration indicator for one or more antenna port groups in an antenna port group, wherein the intra-group calibration indicator indicates the ability of the UE to perform relative phase and / or amplitude calibration between multiple antenna ports within the antenna port group based on the calibration capability of one or more combinations of antenna ports associated with the antenna port group.

[0626] Example 21. The method according to Example 20 includes: identifying an antenna port group as having in-group calibration capability of full calibration, partial calibration, or no calibration based on the calibration capability of one or more combinations of associated antenna ports.

[0627] Example 22. The method according to Example 21 includes: determining an inter-group calibration indicator for a combination of two or more antenna port groups, wherein the inter-group calibration indicator indicates the ability of the UE to perform relative phase and / or amplitude calibration between the two or more antenna port groups based on the calibration capability of one or more combinations of antenna ports associated with the two or more antenna port groups.

[0628] Example 23. The method according to Example 22, wherein generating a multi-antenna port calibration capability indicator includes generating an indicator of: one or more antenna port groups; an intra-group calibration indicator for one or more antenna port groups; and an inter-group calibration indicator for one or more combinations of one or more antenna port groups.

[0629] Example 24. The method according to any of the foregoing embodiments includes:

[0630] Obtain an indication used to initiate the determination of multi-antenna port calibration capability; and

[0631] Initiate the determination of multi-antenna port calibration capability based on the indication.

[0632] Example 25. The method according to Example 23 includes: receiving an indication from a network node, and / or generating an indication based on a trigger condition being met.

Claims

1. A user equipment (UE), comprising: A component for determining the antenna port group calibration capability of the UE, wherein the antenna port group calibration capability depends on at least one of the following: phase calibration or amplitude calibration of one or more antenna port groups of the UE, wherein determining the antenna port group calibration capability includes: determining multi-antenna port calibration capability.

2. The user equipment according to claim 1, wherein determining the multi-antenna port calibration capability includes: Generate a multi-antenna port calibration capability indicator associated with non-codebook-based precoding for uplink communication between the UE and the network, wherein the multi-antenna port calibration capability indicator indicates: the UE's ability to perform relative phase and / or amplitude calibration between multiple antenna ports of the UE; and / or Determining the multi-antenna port calibration capability includes using one or more antenna ports to measure one or more reference signals.

3. The user equipment according to any one of claims 1 to 2, wherein determining the multi-antenna port calibration capability comprises: The measurement of a first measurement reference signal is compared with the measurement of a second measurement reference signal, wherein the first reference signal is a downlink reference signal and the second reference signal is at least one of the following: a different measurement reference signal; a reference signal measured at an antenna port different from the first measurement reference signal; an uplink reference signal; or an expected reference signal.

4. The user equipment according to claim 3, comprising: Components for identifying one or more valid combinations of two or more antenna ports based at least in part on the comparison of the measurement of the first measurement reference signal with the measurement of the second measurement reference signal, and The identifier of one or more valid combinations of two or more antenna ports is based at least in part on: for multiple antenna ports of the two or more antenna ports, a comparison of the measured downlink reference signal at the antenna port with the measured uplink reference signal at one or more antenna ports.

5. The user equipment of claim 4, wherein if the UE is capable of performing relative phase and / or amplitude calibration between two or more antenna ports, the combination of the two or more antenna ports is valid and its calibration capability is fully calibrated; Wherein, if the UE is capable of performing relative phase and / or amplitude calibration between subsets of two or more antenna ports, then the combination of the two or more antenna ports is valid and its calibration capability is partial calibration; or If the UE is unable to perform relative phase and / or amplitude calibration between two or more antenna ports within an antenna port group, then the combination of the two or more antenna ports is invalid and its calibration capability is uncalibrated.

6. The user equipment according to claim 5, further comprising: Components for determining one or more preferred combinations of one or more antenna ports based at least in part on one or more valid combinations identified among two or more antenna ports; or A component for determining one or more candidate combinations of one or more antenna ports based at least in part on one or more valid combinations identified in two or more antenna ports.

7. The user equipment of claim 6, wherein determining one or more preferred combinations of one or more antenna ports, and / or one or more candidate combinations of one or more antenna ports, is based on the calibration capability of one or more combinations of one or more antenna ports, and / or The components for determining one or more preferred combinations of one or more antenna ports, and / or the components for determining one or more candidate combinations of one or more antenna ports, are configured as follows: Prioritizing one or more valid and partially calibrated combinations of one or more antenna ports, select one or more valid and fully calibrated combinations of one or more antenna ports as preferred combinations and / or candidate combinations; and / or One or more valid and partially calibrated combinations of one or more antenna ports are selected as preferred combinations and / or candidate combinations, taking into account one or more invalid and uncalibrated combinations of one or more antenna ports.

8. The user equipment according to claim 7, further comprising: Components for associating the one or more preferred combinations and / or the one or more candidate combinations of antenna ports with one or more groups of antenna ports, wherein the group of antenna ports includes at least: the antenna ports of one or more combinations of its associated antenna ports; Components for determining an intra-group calibration indicator for one or more antenna port groups in the antenna port group, wherein the intra-group calibration indicator indicates the UE's ability to perform relative phase and / or amplitude calibration between multiple antenna ports within the antenna port group based on the calibration capability of the one or more combinations of antenna ports associated with the antenna port group; A component used to identify an antenna port group as having in-group calibration capability of full calibration, partial calibration, or no calibration based on the calibration capability of one or more combinations of associated antenna ports; or A component for determining an inter-group calibration indicator for a combination of two or more antenna port groups, wherein the inter-group calibration indicator indicates the UE's ability to perform relative phase and / or amplitude calibration between the two or more antenna port groups based on the calibration capability of the one or more combinations of antenna ports associated with the two or more antenna port groups.

9. The user equipment of claim 8, wherein generating the multi-antenna port calibration capability indicator comprises generating an indication of: one or more antenna port groups; intra-group calibration indicators of the one or more antenna port groups; and inter-group calibration indicators of one or more combinations of the one or more antenna port groups.

10. The user equipment according to any of the preceding claims, further comprising: Components for obtaining an indication for initiating the determination of the multi-antenna port calibration capability, and for initiating the determination of the multi-antenna port calibration capability based on the indication; and The user equipment further includes: Components for receiving the indication from the network node, and / or A component used to generate the indication based on the fulfillment of a triggering condition.

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