Estimated MPR instructions for UE on UL beam pairs for STXMP

Abstract

The device receives a first instruction from a first network node to activate a first set of transmit setting instruction states associated with the first network node, receives a second instruction from the first network node for a second network node, and is configured to perform simultaneous transmission with the first and second network nodes, and sends a first report to the first network node, the first report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

Description

Technical Field

[0001] Exemplary and non-limiting embodiments generally relate to uplink MIMO / beamforming, and more particularly to simultaneous transmission across multiple panels (STxMP).

Background Art

[0002] In cellular communications, it is known that user equipment provides a power headroom report (PHR).

Summary of the Invention

[0003] The following summary is merely illustrative and is not intended to limit the claims.

[0004] According to one aspect, a device includes at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the device to at least receive, from a first network node, a first instruction to activate a first set of transmission configuration indication states associated with the first network node; receive, from the first network node, a second instruction of a second network node, wherein the device is configured to perform simultaneous transmission with the first network node and the second network node; and transmit, to the first network node, a first report including at least one indication indicating the presence of a power back-off value associated with a set of transmission configuration indication states.

[0005] According to one embodiment, the method includes: receiving a first instruction from a first network node for activating a first set of transmit setting instruction states associated with the first network node, and receiving a second instruction from the first network node for a second network node, wherein the user equipment is configured to perform simultaneous transmission with the first and second network nodes; and transmitting a first report to the first network node, wherein the first report includes at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0006] According to one embodiment, the apparatus comprises means for receiving a first instruction from a first network node to activate a first set of transmit setting instruction states associated with the first network node; means for receiving a second instruction from a second network node from the first network node, wherein the apparatus is configured to perform simultaneous transmission with the first and second network nodes; and means for transmitting a first report to the first network node, wherein the first report includes at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0007] In one embodiment, a non-temporary computer-readable medium is provided which stores program instructions for performing the following actions: receiving a first instruction from at least a first network node to activate a first set of transmit setting instruction states associated with the first network node; receiving a second instruction from the first network node to a second network node, wherein the user equipment is configured to perform simultaneous transmission with the first and second network nodes; and transmitting a first report to the first network node, wherein the first report includes at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0008] In one embodiment, the device comprises at least one processor and at least one memory storing instructions that, when executed by at least one processor, cause the device to transmit to a user device a first instruction to activate a first set of transmit setting instruction states associated with the device; transmit to the user device a second instruction for a network node, the user device being configured to perform simultaneous transmission with the device and the network node; and receive from the user device a first report, the first report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0009] According to one embodiment, a method is provided which includes: a first network node transmitting a first instruction to a user device for activating a first set of transmit setting instruction states associated with the first network node; transmitting a second instruction of the network node to the user device, the user device being configured to perform simultaneous transmission with the first network node and the network node; and receiving a first report from the user device, the first report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0010] In one embodiment, the apparatus comprises means for transmitting a first instruction to a user device for activating a first set of transmit setting instruction states associated with the apparatus; means for transmitting a second instruction to a network node to the user device, wherein the user device is configured to perform simultaneous transmission with the apparatus and the network node; and means for receiving a first report from the user device, wherein the first report includes at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0011] In one embodiment, a non-temporary computer-readable medium stores program instructions for performing at least: causing a first network node to cause a user device to transmit a first instruction to activate a first set of transmit setting instruction states associated with the first network node; causing the user device to transmit a second instruction of the network node, the user device being configured to perform simultaneous transmission with the first network node and the network node; and causing the user device to receive a first report, the first report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0012] According to one embodiment, the device comprises at least one processor and at least one memory that stores instructions causing the device to perform, when executed by the at least one processor, an instruction to transmit to a user device an instruction to activate a second set of transmit setting instruction states associated with the device, and to receive a second report from the user device, the second report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0013] According to one embodiment, the method includes using a first network node to transmit an instruction to a user device to activate a second set of transmit configuration instruction states associated with the device, and receiving a second report from the user device, the second report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit configuration instruction states.

[0014] According to one embodiment, the apparatus includes means for transmitting an instruction to a user device to activate a second set of transmission setting instruction states associated with the apparatus, and means for receiving a second report from the user device, the second report including at least one instruction indicating the presence of a power backoff value associated with a set of transmission setting instruction states.

[0015] In one embodiment, the non-temporary computer-readable medium is a non-temporary computer-readable medium storing program instructions for performing at least the following: causing a first network node to cause a user device to transmit an instruction to activate a second set of transmit setting instruction states associated with the first network node; and causing the user device to receive a second report, the second report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0016] According to some embodiments, the subject matter of the independent claim is provided. Some further embodiments are defined in the dependent claims. [Brief explanation of the drawing]

[0017] The aforementioned embodiments and other features are described in the following description in relation to the attached drawings. [Figure 1] Figure 1 is a block diagram of one possible and non-limiting exemplary system in which exemplary embodiments may be implemented. [Figure 2] Figure 2 is a diagram showing the features described herein. [Figure 3] Figure 3 is a diagram showing the features described herein. [Figure 4] Figure 4 is a diagram showing the features described herein. [Figure 5] Figure 5 is a diagram showing the features described herein. [Figure 6] Figure 6 is a flowchart showing the steps described herein. [Figure 7] Figure 7 is a diagram showing the features described herein. [Figure 8] Figure 8 is a diagram showing the features described herein. [Figure 9] Figure 9 is a diagram showing the features described herein. [Figure 10] Figure 10 is a diagram showing the features described herein. [Figure 11]FIG. 11 is a flowchart showing the steps described in this specification. [Figure 12] FIG. 12 is a flowchart showing the steps described in this specification. [Figure 13] FIG. 13 is a flowchart showing the steps described in this specification.

MODE FOR CARRYING OUT THE INVENTION

[0018] The following abbreviations seen in this specification and / or drawings are defined as follows. 3GPP (Registered Trademark) Third Generation Partnership Project 5G Fifth Generation 5GC 5G Core Network AMF Access and Mobility Management Function CE Control Element CPE Customer Premises Equipment CRI CSI-RS Resource Indicator CSI Channel State Information cRAN Cloud Radio Access Network CRI Corresponding Resource Indicator CU Central Unit DCI Downlink Control Information DL Downlink DU Distributed Unit EIRP Equivalent Isotropically Radiated Power eNB (or, eNodeB) Evolved Node B (e.g., LTE base station) EN-DC E-UTRA-NR Dual Connectivity en-gNB or En-gNB A node that provides termination of NR user plane and control plane protocols towards the UE and operates as a secondary node in EN-DC E-UTRA Evolved Universal Terrestrial Radio Access, i.e., LTE radio access technology FWA Fixed Wireless Access gNB (or gNodeB) is a base station for 5G / NR, i.e., a node that provides NR user plane and control plane protocol termination to the UE and connects to the 5GC via the NG interface. I / F Interface L1 Layer 1 LTE Long-Term Evolution MAC Media Access Control mDCI Multiple Downlink Control Information MIMO Multi-Input Multi-Output MME Mobility Management Entity MPE Maximum Allowable Exposure MPR maximum power reduction mTRP Multiple transmit / receive points ng or NG New generation ng-eNB or NG-eNB: Next-generation eNB NR new radio N / W or NW Network O-RAN Open Radio Access Network PA Power Amplifier PDCP Packet Data Convergence Protocol PH Power Headroom PHR Power Headroom Report PHY physical layer P-MPR Power Management Maximum Power Reduction PRB (Physical Resource Block) PUSCH Physical Uplink Shared Channel RAN (Radio Access Network) RB resource block RF radio frequency RLC Wireless Link Control RRC (Radio Resource Control) RRH Remote Radio Head RS reference signal RSRP Reference Signal Received Power RU Wireless Unit Rx Receiver SCH Shared Channel SDAP Service Data Adaptive Protocol sDCI Single Downlink Control Information SGW Serving Gateway SINR (Signal-to-Interference Ratio + Noise Ratio) SMF session management function SSB Synchronization Signal Block SSBRI Synchronization Signal Block Resource Block Indicator STxMP simultaneous transmission across multiple panels TCI transmission setting indicator TRP total radiated power TRP Send / Receive Point Tx transmitter UE (User Equipment) refers to user equipment (e.g., wireless devices, typically mobile devices). UL Uplink UPF User Plane Functionality VNR Virtualization Network Function

[0019] Looking at Figure 1, this figure shows a block diagram of one possible and non-limiting example in which this embodiment may be implemented. A user device (UE) 110, a radio access network (RAN) node 170, and a network element(s) 190 are illustrated. In the example of Figure 1, the user device (UE) 110 wirelessly communicates with the radio network 100. The UE is a radio device that can access the radio network 100. The UE 110 includes one or more processors 120, one or more memories 125, and one or more transceivers 130 interconnected via one or more buses 127. Each of the one or more transceivers 130 includes a receiver Rx132 and a transmitter Tx133. The one or more buses 127 may be an address bus, a data bus, or a control bus, and may include any interconnection mechanism such as a series of lines on a motherboard or integrated circuit, optical fiber, or other optical communication equipment. The "circuit" may include dedicated hardware or hardware associated with software that can run on it. One or more transceivers 130 are connected to one or more antennas 128. One or more memories 125 contain computer program code 123. The UE 110 includes module 140 which contains one or both of modules 140-1 and / or 140-2, which can be implemented in many ways. Module 140 may be implemented in hardware as module 140-1, such as being implemented as part of one or more processors 120. Module 140-1 may also be implemented as an integrated circuit or via other hardware such as a programmable gate array. In another embodiment, module 140 may be implemented as computer program code 123 and as module 140-2, which is executed by one or more processors 120. For example, one or more memories 125 and computer program code 123 may be configured by one or more processors 120 to cause user equipment 110 to perform one or more operations described herein. The UE 110 communicates with RAN node 170 via radio link 111.

[0020] In this embodiment, the RAN node 170 is a base station that provides access to the radio network 100 by radio devices such as the UE 110. The RAN node 170 may also be a base station for 5G, also known as New Radio (NR). In 5G, the RAN node 170 may be an NG-RAN node defined as either a gNB or an ng-eNB. A gNB is a node that provides NR user plane and control plane protocol termination to the UE and is connected to the 5GC (e.g., network element(s) 190, etc.) via an NG interface. An NG-eNB is a node that provides E-UTRA user plane and control plane protocol termination to the UE and is connected to the 5GC via an NG interface. An NG-RAN node may include multiple gNBs and may also include a central unit (CU) (gNB-CU) 196 and a distributed unit (DU) (gNB-DU), of which DU 195 is shown. Note that a DU may include or be connected to a radio unit (RU) and be able to control the radio unit (RU). A gNB-CU is a logical node that hosts the RRC, SDAP, and PDCP protocols of a gNB, or the RRC and PDCP protocols of an en-gNB, and controls the operation of one or more gNB-DUs. A gNB-CU terminates the F1 interface connected to a gNB-DU. The F1 interface is illustrated as reference numeral 198, but reference numeral 198 also illustrates links between remote elements of RAN node 170 and central elements of RAN node 170, such as between gNB-CU 196 and gNB-DU 195. A gNB-DU is a logical node that hosts the RLC, MAC, and PHY layers of a gNB or en-gNB, and some of its operation is controlled by a gNB-CU. One gNB-CU supports one or more cells. One cell is supported by only one gNB-DU. A gNB-DU terminates the F1 interface 198 connected to a gNB-CU.DU195 is thought to include transceiver 160 as part of RU, for example, but it should be noted that in some examples of this embodiment, transceiver 160 may be part of a separate RU, for example, under the control of DU195 and connected to DU195. RAN node 170 may also be an eNB (Evolutionary NodeB) base station for LTE (Long-Term Evolution), or any other suitable base station, access point, access node, or node.

[0021] RAN node 170 includes one or more processors 152, one or more memories 155, one or more network interfaces (N / WI / F(or more)) 161, and one or more transceivers 160 interconnected via one or more buses 157. Each of the one or more transceivers 160 includes a receiver Rx162 and a transmitter Tx163. One or more transceivers 160 are connected to one or more antennas 158. One or more memories 155 contain computer program code 153. CU 196 may include a processor 152, memory 155, and network interface 161. DU 195 may also include its own memory / storage and processor(s), and / or other hardware, but these are not shown in the illustration.

[0022] RAN node 170 includes module 150, which includes one or both of module 150-1 and / or 150-2, and this can be implemented in many ways. Module 150 may be implemented in hardware as module 150-1, such as being implemented as part of one or more processors 152. Module 150-1 may also be implemented as an integrated circuit or via other hardware such as a programmable gate array. In other embodiments, module 150 may be implemented as computer program code 153 and as module 150-2, which is executed by one or more processors 152. For example, one or more memories 155 and computer program code 153, together with one or more processors 152, are configured to cause RAN node 170 to perform one or more operations described herein. Note that the functionality of module 150 may be distributed, such as being distributed between DU195 and CU196, or it may be implemented only in DU195.

[0023] One or more network interfaces 161 communicate over the network, such as via links 176 and 131. One or more gNBs 170 can communicate, for example, using link 176. Link 176 may be wired, wireless, or both, and may implement, for example, an Xn interface for 5G, an X2 interface for LTE, or other suitable interfaces for other standards.

[0024] One or more buses 157 may be address buses, data buses, or control buses, and may include any interconnection mechanisms such as a series of wirings on a motherboard or integrated circuit, optical fibers or other optical communication equipment, or radio channels. For example, one or more transceivers 160 may be implemented as a remote radio head (RRH) 195 for LTE or a distributed unit (DU) 195 for gNB implementation for 5G, other elements of the RAN node 170 may be located in a physically separate location from the RRH / DU, one or more buses 157 may be partially implemented as, for example, optical fiber cables or other suitable network connections, and other elements (e.g., the central unit (CU) of the RAN node 170, gNB-CU) may be partially implemented as optical fiber cables or other suitable network connections for connecting to the RRH / DU 195. Reference numeral 198 indicates those suitable network links.

[0025] In this specification, while "cell" is used to indicate that a function is performed, it should be noted that it is obvious that the equipment forming the cell performs the function. A cell constitutes part of a base station. That is, there can be multiple cells in a single base station. For example, if there are three cells for one carrier frequency and associated bandwidth, and each cell covers one-third of a 360-degree area, then the coverage area of ​​one base station can cover an approximately ellipse or circle. Furthermore, each cell corresponds to one carrier, and a base station can use multiple carriers. In other words, if there are three 120-degree cells per carrier and two carriers, the base station will have a total of six cells.

[0026] The wireless network 100 may include core network functions and may include one or more network elements 190 that provide connectivity via one or more links 181 to further networks such as telephone networks and / or data communication networks (e.g., the Internet). Such core network functions for 5G may include access and mobility management functions (AMF(or)) and / or user plane functions (UPF(or)) and / or session management functions (SMF(or)). Such core network functions for LTE may include MME (Mobility Management Entity) / SGW (Serving Gateway) functions. These are merely illustrative functions that may be supported by the network element 190, and it should be noted that both 5G and LTE functions may be supported. The RAN node 170 is connected to the network element 190 via link 131. Link 131 may be implemented, for example, as an NG interface for 5G, or an S1 interface for LTE, or other suitable interface for other standards. The network element 190 includes one or more processors 175, one or more memories 171, and one or more network interfaces (N / WI / F(or more)) 180 interconnected via one or more buses 185. One or more memories 171 contain computer program code 173. One or more memories 171 and the computer program code 173 are configured by one or more processors 175 to cause the network element 190 to perform one or more operations.

[0027] The wireless network 100 can implement network virtualization, which is the process of combining hardware and software network resources and network functions into a virtual network, a single software-based management entity. Network virtualization includes platform virtualization and is often combined with resource virtualization. Network virtualization is classified into external types, which unify many networks or parts of networks into virtual units, and internal types, which provide network-like functions to software containers on a single system. For example, a network may be deployed in a telecloud, and virtualized network functions (VNFs) may run on servers in a data center, for example. For example, network core functions and / or wireless access networks (CloudRAN, O-RAN, edge cloud, etc.) may be virtualized. It should be noted that the virtualized entities resulting from network virtualization are still implemented at some level using hardware such as processors 152 or 175 and memory 155 and 171, and such virtualized entities produce technical effects.

[0028] Furthermore, it should be noted that the operation of the exemplary embodiments of this disclosure may be carried out by multiple collaborative devices (e.g., cRAN).

[0029] Computer-readable memories 125, 155, and 171 may be of any type appropriate to the local technical environment and can be implemented using any suitable data storage technology, such as semiconductor-based memory devices, flash® memory, magnetic memory devices and systems, optical memory devices and systems, fixed memory, and removable memory. Computer-readable memories 125, 155, and 171 may also be means for performing storage functions. Processors 120, 152, and 175 may be of any type appropriate to the local technical environment and, in non-limiting examples, may include one or more of general-purpose computers, special-purpose computers, microprocessors, digital signal processors (DSPs), and processors based on multi-core processor architectures. Processors 120, 152, and 175 may be means for performing functions such as controlling the UE 110, the RAN node 170, and other functions, as described herein.

[0030] Generally, various exemplary embodiments of the user device 110 may include, but are not limited to, mobile phones such as smartphones, tablets, personal digital assistants (PDAs) with wireless communication capabilities, portable computers with wireless communication capabilities, image capture devices such as digital cameras with wireless communication capabilities, game devices with wireless communication capabilities, music storage and playback devices with wireless communication capabilities, internet devices that enable wireless internet access and browsing, tablets with wireless communication capabilities, and portable units or terminals incorporating combinations of these functions.

[0031] Having thus introduced one technical background that is suitable but not limiting for the implementation of exemplary embodiments of this disclosure, we will now describe the exemplary embodiments in more detail.

[0032] The features described in this document may generally relate to simultaneous transmission across multiple panels (STxMP). In RAN#98e, the Multi-Input Multi-Output (MIMO) evolution work item RP-223276 for downlink and uplink was approved. One of its objectives is the consideration and specification of STxMP for multi-transmit / receive point (multi-TRP) operation.

[0033] The Radio Frequency (RF) group in RAN4 discusses uplink (UL) power requirements when multiple UE panels transmit simultaneously. As shown in Figure 2, the maximum peak equivalent isotropic radiated power (EIRP) of a UE is achieved when two panels transmit at maximum power amplifier (PA) power, and two directional TX beams are steered in the same direction and added together. In the example in Figure 2, beams 220 and 230 from two panels 210 and 220 of the UE are induced in the same general direction. The maximum radiated power can be achieved when both panels are oriented in the same direction. Panels can also be referred to as antenna panels.

[0034] Since the maximum peak EIRP is a regulatory requirement, UEs must autonomously apply power backoff to avoid violating radiated power requirements.

[0035] RAN1 WID (Work Item Description) applies to fixed wireless access (FWA), CPE (Customer Premises Equipment), automotive devices, and / or industrial devices. The maximum output power limits for power classes 1 and 2 are specified in 3GPP® TS38.101-2, and a table covering the UL MIMO case is copied below for reference.

[0036] Referring to Table 1, Table 6.2D.1.1-3 shows the UE maximum output power limits for UL MIMO in power class 1. [Table 1]

[0037] Next, referring to Table 2, Table 6.2D.1.2-2 shows the UE maximum output power limits for UL MIMO in power class 2. [Table 2]

[0038] Tables 1 and 2 show that the maximum power limit per UE panel when using multiple active panels in UL MIMO is the same as when operating with a single active panel. That is, each UE panel (operating independently) must be below 35 dBm of total radiated power (TRP), and a UE with panels transmitting simultaneously must also be below 35 dBm of TRP. For example, in 4-layer UL MIMO, each panel may be transmitting at 29 dBm (i.e., 35 dBm of available power divided by the two panels and divided by the two polarizations). Thus, it is clear that the output power limit is defined per UE, not per UE panel.

[0039] In Figure 2, since the two antenna panels 210 and 230 are mounted on the same side of the FWA device, there is a risk of exceeding the UE's power limit if both panels are transmitting at maximum. Furthermore, in other implementations as well, the total radiated power may exceed the maximum EIRP. This can occur in areas of overlapping use cases, for example, as depicted in Figure 3.

[0040] Referring to Figure 3, an example of a UE architecture is illustrated where overlapping regions occur and the total radiated power may exceed the specified limit if the UE does not use power backoff. FWA310 includes two panels on the same side, which can result in overlapping region 320. FWA330 includes panels on different sides, which can also result in overlapping region 340. The Power Management Maximum Power Reduction (P-MPR) framework allows the UE to reduce the maximum transmit power defined in TS38.101-2 for each transmitter, thereby complying with regulatory requirements regarding maximum EIRP. P-MPRf,c This is power management maximum output power reduction. The UE applies P-MPR only to the carrier f of serving cell c. f,c Apply this.

[0041] The determined overlap may include overlap between activated UE panels. Additionally or alternatively, the determined overlap may include overlap between arrival angles. In addition or alternatively, the determined overlap may include overlap between departure angles. Additionally or alternatively, the determined overlap may include the UE Tx beam emission pattern (beam width). Additionally or alternatively, the determined overlap may include the UE Tx beam steering angle. Additionally or alternatively, the determined overlap may include the UE Tx antenna gain.

[0042] The functions described herein generally relate to power headroom reporting (PHR). PHR is a type of MAC control element (CE) message defined in 3GPP® TS38.321 and is used to report power headroom (PH). PH is defined as the difference between the nominal maximum output power and the estimated output power of the UL-SCH transmit, where PH = UE maximum transmit power - PUSCH power = Pmax - P_pusch.

[0043] Next, referring to Figure 4, an example of PHR in TS38.321 is shown. The network uses PH to evaluate the number of uplink resources that can be scheduled to the UE without exceeding the UE's maximum power. PCMAX is defined in TS38.101-2 as the maximum set transmit power by the UE.

[0044] The results of the 3GPP® RAN4 Way Forward after the February meeting (R4-2303495) are as follows: "...Draft UE RF agenda for the next meeting, RAN4#106-bis-e 3. General and Work Plan 4. UE RF on simultaneous transmission with multi-panel (STxMP) 2.1 Power limits per panel 2.2 Power limits per UE <Agreement>: Application of FR2 power class Consider only PC1 / PC2 / PC4 / PC5 / [PC6]. <Agreement> The currently defined power classes will be further considered as reference points for discussions regarding power limits when defining new requirements for STxMP cases, if necessary. <Progress>: Set power per TCI for per panel power limiting Companies are encouraged to provide their views on alternative solutions that support either "per TCI state" power limits or "per panel" power control based on practical implementation considerations. <Forward>: How to specify power limits "per UE" Companies are recommended to offer the following options for STxMP "per UE" power limits: Option 1: Reuse the legacy requirements of STxMP. Option 2: Define new requirements as the "Comprehensive Capability Concept" for STxMP.

[0045] The features described herein may relate to the simultaneous transmission of multiple beams. When multiple beams are transmitted simultaneously and the beams overlap (see the example shown in Figure 5), the transmitted beams from each panel overlap, which risks causing the UE's peak EIRP in some directions to exceed the maximum allowable EIRP. As a result, the UE may need to reduce its output power to comply with regulatory requirements, namely, the maximum total radiated power (TRP) and the maximum peak EIRP.

[0046] Because the network does not recognize the UE's radiation patterns or panel configuration, it cannot evaluate whether UL beam pairs overlap or whether the UE needs to perform P-MPR for a given beam combination.

[0047] P-MPR is applied autonomously by the UE, and the gNB does not know the P-MPR value that the UE is actually using or when it was used. P-MPR reduces the PCMAX value in PHR reporting (reduces PH), but the network does not know the P CMAX It is unclear whether the reduction was due to P-MPR, other factors, or a combination of both.

[0048] The beam is identified by the Transmit Setting Instruction (TCI) state. The gNB may add or modify the active TCI state / beam of the UE depending on radio conditions, mobility, etc. Referring to Figure 5, an example use case is illustrated in which an alternative TCI state may be preferred because the network considers and does not generate P-MPR, assuming that the maximum EIRP is exceeded. The UE (505) may, for example, direct the beam in the direction of a reflector (515) to avoid a blocker (520) and reach TRP B (530). At 510, if TCI state Y is set to TRP B, the beam may be a beam without MPR. At 525, TCI state Y may be active at TRP B.

[0049] UE(505) can direct the beam towards the presence of a reflector (540) so that it reaches TRP B(530) while avoiding, for example, a blocker (520). At 545, TCI state X can become active on TRP B.

[0050] UE(505) can direct its beam toward TRP A (555). At 550, the current TCI state is likely to be TRP A. At 535, if TCI state X is set to TRP B, there may be overlapping beams toward TRP A and TRP B. If TRP A and TRP B belong to different cells, these different cells may be located in the same gNB or in different gNBs.

[0051] In this embodiment, we assume that the L1-RSRP measurement report showed the following RSRP values.

[0052] a) L1-RSRP = -80dBm for TCI state X

[0053] b) L1-RSRP = -81dBm for TCI state Y

[0054] Furthermore, assume that the UE switches from operating in one UL TCI state to operating in two UL TCI states simultaneously (i.e., STxMP operation, (e.g., from a scheduling request for additional uplink data)), and that the UE is transmitting at maximum power (e.g., maximum bandwidth allocation). As a result, the UE's uplink resource allocation is power-limited (due to maximum PRB allocation and link budget), and the following P-MPR values ​​will be applied to each of the candidate links above (due to maximum power transmission).

[0055] c) P-MPR = 3dB in TCI state X, P-MPR = 3dB in the current TCI state.

[0056] d) P-MPR = 0 dB in TCI state Y, P-MPR = 3 dB in the current TCI state.

[0057] In this case, even though the L1-RSRP level suggests that TCI state X(a) has a better link budget, the gNB selects TCI state X and adds it to the current TCI state for STxMP operation. However, with such beam selection, UL performance becomes suboptimal. Instead, it would have been beneficial to select TCI state Y because this avoids a 3dB P-MPR (known only from d to UE), resulting in an overall PH increase of 2dB. In summary, since the network is not aware of the effects of P-MPR beforehand, selecting TCI state X is not optimal.

[0058] In this disclosure, PRBs and resource blocks (RBs) may be used interchangeably, and in the examples, only one may be referenced, while the other may be appropriately replaced.

[0059] Because added / modified TCI states / beams may overlap with other active TCI states / beams of the UE, P-MPR may be applied by the UE during TCI addition / modification, resulting in suboptimal beam selection and suboptimal UE transmit power. In exemplary embodiments, the network may be informed of potential P-MPR before selecting a beam pair for simultaneous TX (i.e., STxMP). The technical effect of the exemplary embodiments of this disclosure would be to fully utilize the potential of UL MIMO.

[0060] The beam pair being considered may be updated due to / in response to various causes. For example, updates may be provided due to the addition of a second TRP, changes in channel conditions, or movement / rotation of the UE.

[0061] In an exemplary embodiment, the network may be notified by the UE about the P-MPR (up to 3 dB) applied for STxMP (i.e., reactively) or about the P-MPR that would be applied for STxMP if a TCI switchover were performed (i.e., proactively). Based on this information, the network can evaluate the UE's selection of TCI state pairs in the UL and optimize UL performance by taking into account the potential P-MPR due to STxMP. In other words, by notifying the network of the need for P-MPR, a more accurate UL estimate may be given to the network by the UE, which may optimize the UL beam selection of the gNB.

[0062] In an exemplary embodiment, UE reporting may be added to inform the network about P-MPR by STxMP in selected beam pairs, for example, by proactively indicating P-MPR reduction resulting from potential switching to different combinations of UL TCI states for simultaneous UL transmission.

[0063] In exemplary embodiments, UE reporting may be added to inform the network about the P-MPR by STxMP for selected beam pairs, for example, by reactively indicating the actual P-MPR for the actual TX beam combination for simultaneous UL transmission.

[0064] In exemplary embodiments, the network can consider alternative beam combinations while taking into account the required P-MPR. The technical effect of the exemplary embodiments of the present disclosure would be that the network can select beam combinations that have similar path losses but lower P-MPR (e.g., because the beams do not overlap).

[0065] In an exemplary embodiment, the network connects to the UE. max If there is a sufficient margin for this (for example, if the reported PH is far above PH=0), it may be chosen to schedule a Physical Uplink Shared Channel (PUSCH) on a pair of beams that could potentially cause P-MPR.

[0066] In an exemplary embodiment, P-MPR is reported proactively to the network by the UE (e.g., proactive P-MPR reporting), and the gNB can reselect beam pairs accordingly, avoiding switching to non-preferred UL beam pairs. In an exemplary embodiment, the UE (i.e., configured for STxMP) can report to TRP A about TCI states(s) belonging to TRP B. For example, the UE can report potential P-MPR resulting from combining the active UL TCI states of TRP B (i.e., UL TCI states embedded in activated code points, e.g., four UL TCI states) with the current indicated UL TCI states of TRP A. In an exemplary embodiment, there may be one report per indicated TCI, or a combined report may be used for all indicated TCI states.

[0067] In another exemplary embodiment, the UE may report all combinations of activated UL TCI states for each TRP. In this case, it may be necessary to significantly expand the PHR reporting.

[0068] Additional fields may be used to associate P-MPR values ​​with resource indicators (see, for example, Figure 10). In an exemplary embodiment, an existing single TRP PHR may be used for proactive P-MPR reporting. In an alternative exemplary embodiment, a multi-TRP PHR may be updated for proactive P-MPR reporting by adding beam information for alternative TCI states, for example, as has already been done for a single TRP PHR. In an alternative exemplary embodiment, an L1-RSRP report may be updated for proactive P-MPR reporting to include P-MPR for potential TCI state switches.

[0069] In an exemplary embodiment, P-MPR may be reported to the network in a reactive manner by the UE (e.g., reactive P-MPR reporting). The technical effect of this exemplary embodiment is to minimize UE reporting to selected beam pairs and / or to allow the gNB to re-switch the UL beams to a better pair. This exemplary embodiment implies multiple TCI state switches and may have the technical effect of slowing down network operation (e.g., due to TCI switch delay requirements). This exemplary embodiment may provide easier specification and UE procedure implementation. This exemplary embodiment may require the UE to notify the network about the P-MPR actually applied.

[0070] In exemplary embodiments, P-MPR may be reported reactively using an existing multi-TRP PHR solution (i.e., without additional information, see, for example, Figures 8-9). In other exemplary embodiments, the L1-RSRP report may be updated to include P-MPR for the current beam combination for reactive P-MPR reporting.

[0071] Referring to Figure 6, a message sequence chart for the proactive exchange of P-MPR information from the UE to the TRP is illustrated. Two alternative methods (PHR and L1-RSRP reporting) are shown as alternative 1 (635) and alternative 2 (650), respectively. With respect to Figure 6, either single downlink control information (sDCI) operation or multiple downlink control information (mDCI) operation can be used.

[0072] In 605, TRP A may perform RRC connection establishment between TRP A and UE. In 610, TRP A may transmit activation / deactivation of unified TCI status to UE. In 615, TRP A may transmit an RRC reconfiguration to UE, adding TRP B. This may include a P-MPR threshold for reporting candidate beams for STxMP. In an exemplary embodiment, signaling of the P-MPR threshold in 615 (RRC reconfiguration) may be supported for both proactive and reactive P-MPR reporting. This may allow the network to configure a threshold for the P-MPR range that can be reported by the P-MPR bit. RRC reconfiguration may be optional.

[0073] In 620, TRP B may transmit Unified TCI state activation / deactivation to the UE. In 625, the MAC CE's "Unified TCI state activation / deactivation" may include a set of activated code points (up to eight code points). In 630, the UE may extract the uplink / joint TCI state from the list of code points. The UL beam corresponding to each TCI state may be determined from the measured value of the reference signal specified in the QCL information (included in the TCI state information).

[0074] In an exemplary embodiment, the activated code point consists of a "Unified TCI State Activate / Deactivate" MAC CE message (620), and the UE can report one of the four best TCI states, PH (640, 645) or L1 RSRP (655, 660).

[0075] Reports in non-limiting examples include P-MPR1 of the best TCI of TRP1 and TCI X of TRP B, P-MPR2 of the second best TCI of TRP1 and TCI X of TRP B, P-MPR3 of the third best TCI of TRP1 and TCI X of TRP B, etc.

[0076] In alternative 1 (635), using PHR on MAC CE, in 640, the UE can send a PHR report in MAC CE to TRP A, which may include P-MPR indications for the four best beams of TRP A. In 645, the UE can send a PHR report in MAC CE to TRP B, which may include P-MPR indications for the four best beams of TRP B.

[0077] In alternative 2 (650) using L1-RSRP in UCI, in 655, the UE may transmit L1-RSRP in a Channel Status Information (CSI) report to TRP A, which may include P-MPR indications for the four best beams of TRP A. In 660, the UE may transmit L1-RSRP in a CS report to TRP B, which may include P-MPR indications for the four best beams of TRP B.

[0078] It should be noted that L1 beam management typically reports four best beams. The four best beams (or TCI states) shown in TRP A (e.g., in 640 or 655) and TRP B (e.g., in 645 or 660) may be independent of each other. In exemplary embodiments, the PH and P-MPR reported in two PHR reports may differ between different TRPs. Reporting to each TRP may be done assuming that the TCI states of the other TRP remain unchanged. If the network needs to change the TCI states on both TRPs, it may be assumed that this happens sequentially (e.g., in a message in addition to 680).

[0079] In an exemplary embodiment, an L1 report including an STxMP P-MPR may trigger the network to configure the UE in single-PHR reporting mode or two-PHR reporting mode. If the UE is provided with twoPHRMode in the active UL BWPb of carrier f in serving cell c, and two SRS resource sets are provided in srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2 with usage set to “codebook” or “nonCodebook”, the UE can provide two Type 1 power headroom reports in slot n. TS 38.331 also defines that twoPHRmode is used for the UE to send PHRs as twoPHRs in the sDCI operation of the mTRP.

[0080] In an exemplary embodiment, the P-MPR may be reported together with the L1 RSRP / PHR. The network can then use this information to set the newly indicated TCI state (680).

[0081] In an exemplary embodiment, the UE may report to the TRP a P-MPR that applies when at least one pair of activated TCI states are indicated by a single DCI. In another exemplary embodiment, the UE may report to the TRP a P-MPR that applies (already applied) to the indicated pair of activated TCI states.

[0082] In 665, the received P-MPR indication may be shared between TRPs utilizing the backhaul link. The combined information may be used to select an alternative beam that is unaffected (or less affected) by P-MPR. In 670, information can be exchanged between TRP A and TRP B via backhaul. In 675, TRP A may decide to switch beams for the UE, taking the P-MPR information into consideration. For example, one set of TCI states may result in a lower P-MPR or higher UE power compared to another set of activated TCI states.

[0083] In 680, TRP A can send DCI 1_1 to the UE, which sets a new TCI state. The activated set of TCI states may be shown to the UE in a single DCI (i.e., sDCI). Alternatively, in mDCI mTRP operation, each TRP sends its own DCI, and each DCI can show only one TCI state.

[0084] The Rel-18 definition (agreement in RAN1) states that both TRP A and TRP B can interchangeably activate the TCI state of either TRP A or TRP B. For example, TRP B may transmit the activation of the TCI state (on 620) in the case of sDCI operation. For example, TRP A may transmit the activation of the TCI state of TRP B.

[0085] In exemplary embodiments, P-MPR instructions may be sent periodically (e.g., if included in PHR reports) or triggered by specific conditions (e.g., if included in L1-RSRP reports). Such trigger conditions may be event-driven (e.g., TCI switching, or TCI addition, or L1-RSRP / L1-SINR changing beyond a threshold).

[0086] In exemplary embodiments, P-MPR may always be reported for STxMP operation. Additionally or alternatively, P-MPR may be reported to TRP A when the UL TCI state is changed / added on TRP B (and vice versa). For example, a change in the TCI state may be indicated by the received DCI. For example, a change in the TCI state may be indicated by the received MAC CE. In addition or alternatively, P-MPR may be reported when the current link's PH is above a threshold (e.g., PH MPR_reporting ) Reporting may only occur in the following cases. For example, there may be conditions that require multiple conditions to be met in order to trigger a P-MPR report.

[0087] In an exemplary embodiment, the network may also consider a prohibition timer to minimize reporting in the absence of TCI switching / addition.

[0088] In exemplary embodiments, the P-MPR bit may be mapped to a P-MPR range for PHR reporting, which may be directly specified or configurable in RRC reconstruction (as shown by 615 in the messaging sequence chart of Figure 5).

[0089] In an exemplary embodiment, an L1-RSRP report (e.g., 650) can be embedded in a CSI report (as defined in 3GPP® TS 38.212). Existing CSI reports may not retain P-MPR values, and Tables 3 and 4 include the necessary addition of the MPR field to the CSI report. Table 4 includes two P-MPR values ​​per resource group, and each P-MPR value within a group may be mapped to a beam that may be used simultaneously (for example, because it is mapped to a different UE panel).

[0090] Table 3 describes the mapping order of the P-MPR fields in one CSI report (non-group-based). [Table 3]

[0091] Table 3 lists four optimal beams for L1 beam management and their P-MPR fields. For example, P-MPR#1 has the value xyz and is applied by the UE to transmit with CRI#1 in the case of STxMP. P-MPR#2 has the value kmn and is applied to CRI#2, etc.

[0092] Table 4 shows the mapping order of the P-MPR fields in one CSI report (group-based). [Table 4]

[0093] In another exemplary embodiment, the network can be configured so that the UE reports in the CSI field only UL pairs that do not cause P-MPR.

[0094] In another exemplary embodiment, the network may be configured to flag UL beam pairs in the CSI field that do not cause P-MPR. Alternatively, the network may be configured to flag UL beam pairs that do not cause P-MPR.

[0095] In exemplary embodiments, the “MPE or R” bit may be shared between the Maximum Allowable Exposure (MPE) and STxMP for P-MPR reporting. The MPE / R bit can be used to indicate P-MPR by STxMP, but only if the UE is reporting STxMP capability to the network and the P bit = 0 (i.e., no P-MPR by MPE). Cases where P-MPR is required by both MPE and STxMP are considered rare because the type of device considering STxMP is not a handheld device (i.e., power class 3). However, if the UE needs to apply P-MPR by both MPE and STxMP, the UE can report the overall P-MPR range.

[0096] In an exemplary embodiment, for example, in the case of TwoPHRMode (i.e., applicable only to s-DCI, since m-DCI has two PHRs by default), a single PHR report may be sent. In an exemplary embodiment, the R bit of Octet1 may be interpreted as, for example, "S" (maximum peak EIRP exceeded by STxMP) and used as follows:

[0097] 1. If S=1, P-MPR exists due to STxMP (not MPE). This bit may be a presence bit indicating, for example, that P-MPR is used (or not used) to ensure that the UE's radiated power does not exceed regulatory requirements. In the rare case where P-MPR is due to both MPE and STxMP, the UE can report an overall P-MPR, and the UE can indicate that the reported P-MPR value is due to both MPE and STxMP by setting both the P and "S" bits (the R bit in Octet1) to 1.

[0098] 2. Since the selected UL beam pair exceeds the maximum peak EIRP (i.e., in the case of a reactive approach), the UE reads out the two R bits of Octet2 as the P-MPR value to be used.

[0099] Since the P and S bits are mutually exclusive, the two R bits of Octet2 can be reused for either of these presence bits. In other words, if MPE is present, STxMP may not transmit at very high power, but MPE may be present even if STxMP is present.

[0100] Furthermore, if P-MPR is also required for additionally reported TCI states (proactive P-MPR reporting), the PHR report can similarly use two R bits per TCI state in Octet4 to indicate the P-MPR level due to the UE's STxMP operation, and associate them with the corresponding resource (CRI) in Octet5-8. One R bit in each of Octet5-8 may be used to indicate that the P-MPR value in Octet4 is due to STxMP operation (for example, to verify that the device is not radiating power beyond the maximum peak EIRP limit).

[0101] Next, referring to Figure 7, an example of a PHR report including reserved bits for each SSBRI / CRI resource is illustrated.

[0102] In exemplary embodiments, multi-TRP PHRs may be updated to support proactive P-MPR reporting. In exemplary embodiments, multi-TRP PHR reports may be sent (e.g., 2-PHRs) as shown in Figures 8-9. Figure 8 shows an example of reactive P-MPR reporting using an extended single-entry PHR for multiple TRP MAC CEs. Figure 9 shows an example of reactive P-MPR reporting using an extended multiple-entry PHR for multiple TRP MAC CEs. These PHR reports do not have fields to report additional TCI status and therefore cannot be used for proactive P-MPR reporting unless extra fields are added to the message. In exemplary embodiments, when any of the formats in Figures 8-9 is used for reactive P-MPR, the presence or absence of P-MPR depends on the "P" bit. In exemplary embodiments, if P=0, two "MPE or R" bits can be used for P-MPR. Otherwise, P=1 may mean that MPE is reported, in which case P-MPR is not shown because MPR is not assumed to be necessary if MPE is used.

[0103] Figure 8 is limited to a single cell per TRP, while Figure 9 has multiple entries supporting multiple cells per TRP (e.g., for uplink carrier aggregation). By applying a mapping similar to the single-entry example, it may be possible to specify individual P-MPR values ​​for each entry / cell (e.g., P cell, serving cell 1, ..., serving cell n).

[0104] In exemplary embodiments, the 2-PHR reporting format in Figures 8-9 can be extended to support proactive P-MPR reporting. To support proactive P-MPR reporting in the 2-PHR reporting format of Figures 8-9, the format can be extended with fields covering additional TCI conditions. To avoid inconsistencies with the single PHR message format, fields such as MPE1 or R, MPE2 or R, MPE3 or R, MPE4 or R, Resource1, Resource2, Resource3, Resource4, etc., can be added. These additional fields for proactive P-MPR reporting are shown in Figure 10. In the case of the multi-entry PHR report in Figure 9, the above fields may need to be added for each entry, under each octet containing, for example, the "MPE or R" field.

[0105] In exemplary embodiments, the mapping of P-MPR for MPE and P-MPR for STxMP may differ, even if they reuse the same bits in the case of PHR, and different thresholds may be required, as P-MPR for MPE may be mapped from 3dB or higher, while P-MPR for STxMP may be up to 3dB. The actual range of P-MPR related to STxMP may be specified statically in the same way as for MPE (see TS38.133, section 10.1.26), or, if STxMP is supported, the threshold for each range may be signaled as part of the RRC reconfiguration message. The ranges may consist, for example, of 3dB in 1dB steps. The network can then indicate P-MPR thresholds P-MPR1, P-MPR2, P-MPR3, and the actual P-MPRs are mapped as shown in the example in Table 5. Table 5 shows an example of the correspondence between indicated bit values ​​and P-MPR ranges. The P-MPR range limit can be explicitly specified or set by RRC signaling. [Table 5]

[0106] The technical effect of the exemplary embodiments of this disclosure is to inform the network of the P-MPR resulting from a potential TCI switch before the TCI switch is executed. The technical effect of the exemplary embodiments of this disclosure is to enable the network to evaluate whether there is a better alternative TCI state that does not exhibit the same P-MPR. Note that P-MPR is just one of several parameters that the network can use to select a UL TCI state.

[0107] Figure 11 shows potential steps of exemplary method 1100. Exemplary method 1100 may include receiving (1110) a first instruction from a first network node to activate a first set of transmit-configuration instruction states associated with the first network node; receiving (1120) a second instruction from the first network node for a second network node, wherein the user equipment is configured to perform simultaneous transmission with the first and second network nodes; and transmitting (1130) a first report to the first network node, wherein the first report includes at least one instruction indicating the presence of a power backoff value associated with a set of transmit-configuration instruction states. Exemplary method 1100 may be performed, for example, using a UE. The first network node may include a first transmit / receive point. The second network node may include a second transmit / receive point.

[0108] Figure 12 shows potential steps of exemplary method 1200. Exemplary method 1200 may include: transmitting a first instruction to user equipment to activate a first set of transmit-configuration instruction states associated with a first network node (1210); transmitting (1220) a second instruction for a network node to user equipment, wherein the user equipment is configured to perform simultaneous transmission with the first network node and the network node; and receiving (1230) a first report from user equipment, wherein the first report includes at least one instruction indicating the presence of a power backoff value associated with a set of transmit-configuration instruction states (1230). Exemplary method 1200 can be performed, for example, in a network node, base station, transmit point, receive point, TRP, etc. The first network node can be, for example, a network node, base station, transmit point, receive point, TRP, etc.

[0109] Figure 13 shows potential steps of exemplary method 1300. Exemplary method 1300 may include sending an instruction to user equipment to activate a second set of transmit-configuration instruction states associated with a first network node (1310), and receiving a second report from the user equipment (1320), the second report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit-configuration instruction states (1320). Exemplary method 1300 may be performed, for example, in a network node, base station, transmit point, receive point, TRP, etc. The first network node may be, for example, a network node, base station, transmit point, receive point, TRP, etc.

[0110] In an exemplary embodiment, the apparatus comprises at least one processor and at least one memory for storing instructions that, when executed by at least one processor, cause the apparatus to perform at least: receive a first instruction from a first network node to activate a first set of transmit-set instruction states associated with the first network node; receive a second instruction from the first network node for a second network node, wherein the apparatus may be configured to perform simultaneous transmission with the first and second network nodes; and transmit a first report to the first network node, wherein the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit-set instruction states.

[0111] The first report may include multiple indications showing the presence of a power backoff value, each of which may be associated with a set of transmit setting indication states.

[0112] The apparatus in this embodiment may further be configured to determine the overlap between transmissions based on a first set of transmission setting instruction states and transmissions based on a second set of transmission setting instruction states associated with a second network node, and at least partially determine a power backoff value based on the determined overlap, the set transmission power for each transmission setting instruction state, the maximum equivalent isotropically radiated power, the power headroom, the maximum output power limit, or the maximum total radiated power.

[0113] The apparatus in this embodiment may further be configured to transmit a second report to a second network node, the second report being at least partially different from the first report.

[0114] The power backoff value associated with a set of transmit setting instruction states may include the power backoff value applied to that set of transmit setting instruction states.

[0115] The first report may include at least one of multiple transmit / receive point power headroom reports or a Layer 1 reference signal received power report.

[0116] A power backoff value associated with a set of transmit setting instruction states may include a power backoff value selected to be applied to a set of transmit setting instruction states in the future.

[0117] It is possible that at least one of the transmission setting instruction states in a pair of transmission setting instruction states is active, while the other transmission setting instruction states in the pair of transmission setting instruction states are inactive.

[0118] The first report may include at least one of the following: a single power headroom report, multiple transmit / receive point power headroom reports (multiple transmit / receive point power headroom reports may include power backoff values ​​for multiple alternate transmit setting instruction states), or a Layer 1 reference signal received power report (the Layer 1 reference signal received power report may include power backoff values ​​for potential transmit setting instruction state switches).

[0119] The Layer 1 reference signal received power report is configured to trigger a device configuration having at least one of either a single power headroom reporting mode or a dual power headroom reporting mode.

[0120] The apparatus in this embodiment may be configured to receive a third instruction for an uplink grant from a first network node, relating to a further set of transmit-configuration instruction states associated with the first and second network nodes, wherein the further set of transmit-configuration instruction states may differ at least partially from a set of transmit-configuration instruction states.

[0121] The third instruction may include a single downlink control information message.

[0122] The apparatus in this embodiment may be configured to receive a fourth instruction for activating a second set of transmit-configuration instruction states associated with a second network node, wherein a set of transmit-configuration instruction states includes at least a first transmit-configuration instruction state from a first set of transmit-configuration instruction states and a second transmit-configuration instruction state from a second set of transmit-configuration instruction states.

[0123] The apparatus in this embodiment may be further configured to receive a fifth instruction for an uplink grant associated with a third set of transmit setting instruction states associated with the first network node from a first network node, and a sixth instruction for an uplink grant associated with a fourth set of transmit setting instruction states associated with the second network node from a second network node, wherein the third set of transmit setting instruction states may differ at least partially from a set of transmit setting instruction states, and the fourth set of transmit setting instruction states may differ at least partially from a set of transmit setting instruction states.

[0124] Instructions 5 and 6 may each include downlink control information messages.

[0125] The fourth instruction may be received from either the first network node or the second network node.

[0126] The apparatus of this embodiment may further be configured to receive a seventh instruction for a threshold power backoff value for transmitting the first report.

[0127] The power backoff threshold can be included in the wireless resource control reset message.

[0128] The first report may be sent based on at least one of the following: a change in the configured transmit configuration instruction state, the addition of a transmit configuration instruction state, or the current link's power headroom falling below a threshold.

[0129] The apparatus of this embodiment may further be configured to transmit an eighth instruction of at least one set of transmit setting instruction states for which a power backoff value is not required.

[0130] The apparatus of this embodiment may further be configured to transmit a ninth instruction indicating that the presence of a power backoff value is at least partially based on at least one of simultaneous transmission or maximum allowable exposure.

[0131] At least one indication of the existence of a power backoff value may include an indication of a range for the power backoff value.

[0132] The existence of a power backoff value may include a maximum power reduction value for power management.

[0133] The first network node may include a first transmit / receive point, and the second network node may include a second transmit / receive point.

[0134] According to one embodiment, an exemplary method can be provided in which a user device receives a first instruction from a first network node to activate a first set of transmit setting instruction states associated with the first network node, and receives a second instruction from the first network node of a second network node, the user device may be configured to perform simultaneous transmission with the first and second network nodes, and transmits a first report to the first network node, the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0135] The first report may include multiple indications showing the presence of a power backoff value, each of which may be associated with a set of transmit setting indication states.

[0136] The method in this embodiment may further include determining the overlap between transmissions based on a first set of transmit setting instruction states and transmissions based on a second set of transmit setting instruction states associated with a second network node, and determining a power backoff value based at least in part on the determined overlap, the configured transmit power for each transmit setting instruction state, the maximum equivalent radiated power, the power headroom, the maximum output power limit, or the maximum total radiated power.

[0137] The method of this embodiment may further include sending a second report to a second network node, the second report being at least partially different from the first report.

[0138] The power backoff value associated with a set of transmit setting instruction states may include the power backoff value applied to that set of transmit setting instruction states.

[0139] The first report may include at least one of a multiple transmit / receive point power headroom report or a Layer 1 reference signal received power report.

[0140] A power backoff value associated with a set of transmit setting instruction states may include a power backoff value selected to be applied to a set of transmit setting instruction states in the future.

[0141] At least one of the transmission setting instruction states in a set of transmission setting instruction states may be active, while the other transmission setting instruction states in a set of transmission setting instruction states may be inactive.

[0142] The first report may include at least one of the following: a single power headroom report, multiple transmit / receive point power headroom reports (multiple transmit / receive point power headroom reports may include power backoff values ​​for multiple alternate transmit setting instruction states), or a Layer 1 reference signal received power report (the Layer 1 reference signal received power report may include power backoff values ​​for potential transmit setting instruction state switches).

[0143] The Layer 1 reference signal received power report may be configured to trigger a user device configuration having at least one of either a single power headroom reporting mode or a dual power headroom reporting mode.

[0144] The method in this embodiment may further include receiving a third instruction for an uplink grant from a first network node, relating to a further set of transmit-configuration instruction states associated with the first and second network nodes, the further set of transmit-configuration instruction states may differ at least partially from a set of transmit-configuration instruction states.

[0145] The third instruction may include a single downlink control information message.

[0146] The method in this embodiment may further include receiving a fourth instruction to activate a second set of transmit-configuration instruction states associated with a second network node, where one set of transmit-configuration instruction states may include at least a first transmit-configuration instruction state from a first set of transmit-configuration instruction states and a second transmit-configuration instruction state from a second set of transmit-configuration instruction states.

[0147] The method in this embodiment may further include receiving a fifth instruction for an uplink grant from a first network node, relating to a third set of transmit configuration instruction states associated with the first network node, and receiving a sixth instruction for an uplink grant from a second network node, relating to a fourth set of transmit configuration instruction states associated with the second network node, wherein the third set of transmit configuration index states may differ at least partially from a set of transmit configuration instruction states, and the fourth set of transmit configuration instruction states may differ at least partially from a set of transmit configuration instruction states.

[0148] Instructions 5 and 6 may each include downlink control information messages.

[0149] The fourth instruction may be received from either the first network node or the second network node.

[0150] The method of this embodiment may further include receiving a seventh instruction for a threshold power backoff value for transmitting a first report.

[0151] The power backoff threshold can be included in the wireless resource control reset message.

[0152] The first report may be sent based on at least one of the following: a change in the configured transmit configuration instruction state, the addition of a transmit configuration instruction state, or the current link's power headroom falling below a threshold.

[0153] The method of this embodiment may further include transmitting an eighth instruction of at least one set of transmit setting instruction states for which a power backoff value is not required.

[0154] The method of this embodiment may further include transmitting a ninth instruction indicating that the presence of a power backoff value is at least partially based on at least one of simultaneous transmission or maximum allowable exposure.

[0155] At least one indication of the existence of a power backoff value may include an indication of a range for the power backoff value.

[0156] The existence of a power backoff value may include a maximum power reduction value for power management.

[0157] The first network node may include a first transmit / receive point, and the second network node may include a second transmit / receive point.

[0158] In an exemplary embodiment, the device may include: a circuit configured to perform a first instruction from a first network node to activate a first set of transmit-setting instruction states associated with the first network node; a circuit configured to perform a second instruction from a second network node, the device may be configured to perform simultaneous transmission with the first and second network nodes; and a circuit configured to perform a first report to the first network node, the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit-setting instruction states.

[0159] In one exemplary embodiment, the apparatus comprises a processing circuit and a memory circuit including computer program code, the memory circuit and the computer program code together with the processing circuit may enable the apparatus to perform: receiving a first instruction from a first network node to activate a first set of transmit setting instruction states associated with the first network node; receiving a second instruction from the first network node for a second network node, wherein the apparatus is configured to perform simultaneous transmission with the first and second network nodes; and transmitting a first report to the first network node, wherein the first report includes at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0160] As used in this application, the term “circuit” may mean one, more, or all of the following: (a) a hardware-only circuit implementation (such as an implementation in analog and / or digital circuits only); (b) a combination of hardware circuitry and software (where applicable); (i) a combination of analog and / or digital hardware circuitry and software / firmware; (ii) a combination of hardware processors and software (including digital signal processors), software, and memory (which work together to enable a device such as a mobile phone or server to perform various functions); and (c) hardware circuitry and / or processors, such as microprocessors or parts of microprocessors, which require software (e.g., firmware) for operation but may not be present when the software is not required for operation. This definition of circuitry applies to all use of the term in this application, including in the claims. As a further example, the term "circuit" in this embodiment also includes not only a hardware circuit or processor (or multiple processors) or a part of a hardware circuit or processor and the implementation of the software and / or firmware associated with it (or them). The term "circuit" also includes, for example, a baseband integrated circuit or processor integrated circuit for a mobile device, or a similar integrated circuit in a server, cellular network device, or other computing device or network device, where applicable to the elements of a particular claim.

[0161] In an exemplary embodiment, the apparatus may include means for receiving a first instruction from a first network node to activate a first set of transmit setting instruction states associated with the first network node; means for receiving a second instruction from a second network node from the first network node, wherein the apparatus may be configured to perform simultaneous transmission with the first and second network nodes; and means for transmitting a first report to the first network node, wherein the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0162] In one exemplary embodiment, the apparatus may include means for performing any of the exemplary methods described above.

[0163] A processor, memory, and / or exemplary algorithms (which may be encoded as instructions, programs, or code) may be provided as exemplary means for providing or performing an action.

[0164] In an exemplary embodiment, the system includes a non-temporary computer-readable medium storing instructions that cause at least one processor to receive a first instruction from a first network node to activate a first set of transmit-setting instruction states associated with the first network node, and to receive a second instruction from the first network node for a second network node, wherein the user equipment is configured to perform simultaneous transmission with the first and second network nodes, and to transmit a first report to the first network node, wherein the first report includes at least one instruction indicating the presence of a power backoff value associated with a set of transmit-setting instruction states.

[0165] In one exemplary embodiment, a non-temporary computer-readable medium stores program instructions for performing at least: receiving a first instruction from a first network node to activate a first set of transmit-setting instruction states associated with the first network node; receiving a second instruction from the first network node to a second network node, wherein the user equipment may be configured to perform simultaneous transmission with the first and second network nodes; and transmitting a first report to the first network node, wherein the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit-setting instruction states.

[0166] In other exemplary embodiments, a machine-readable non-temporary program storage device may be provided, which embodies machine-executable instructions for performing operations, the operations of causing the first network node to receive a first instruction for activating a first set of transmit-setting instruction states associated with the first network node; causing the first network node to receive a second instruction for a second network node, the user device may be configured to perform simultaneous transmission with the first and second network nodes; and causing the first network node to transmit a first report, the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit-setting instruction states.

[0167] In another exemplary embodiment, the non-transient computer-readable medium includes an instruction that, when executed by the device, causes the device to perform at least: cause user equipment to receive a first instruction from a first network node to activate a first set of transmit setting instruction states associated with the first network node; cause user equipment to receive a second instruction from the first network node for a second network node, wherein the user equipment is configured to perform simultaneous transmission with the first and second network nodes; and cause the first network node to transmit a first report, wherein the first report includes at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0168] A computer implementation system comprising at least one processor and at least one non-temporary memory that stores instructions causing the system to perform at least: receive a first instruction from a first network node to activate a first set of transmit setting instruction states associated with the first network node; receive a second instruction from the first network node to a second network node, wherein the user equipment can be configured to perform simultaneous transmission together with the first and second network nodes; and transmit a first report, wherein the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0169] A computer implementation system comprising: means for causing a user device to receive a first instruction from a first network node for activating a first set of transmit setting instruction states associated with the first network node; means for causing a second instruction from the first network node to receive a second instruction from a second network node, wherein the user device may be configured to perform simultaneous transmission with the first and second network nodes; and means for causing the first network node to transmit a first report, wherein the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0170] In an exemplary embodiment, the device may include at least one processor and at least one memory storing instructions that cause the device to perform at least the following actions when performed by the at least one processor: transmit a first instruction to a user device for activating a first set of transmit-setting instruction states associated with the device; transmit a second instruction to the user device for a network node, the user device may be configured to perform simultaneous transmits with the device and the network node; and receive a first report from the user device, the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit-setting instruction states.

[0171] The first report may include multiple indications showing the presence of a power backoff value, each of which may be associated with a set of transmit setting indication states.

[0172] The power backoff value associated with a set of transmit setting instruction states may include the power backoff value applied to that set of transmit setting instruction states.

[0173] The first report may include at least one of a multiple transmit / receive point power headroom report or a Layer 1 reference signal received power report.

[0174] A power backoff value associated with a set of transmit setting instruction states may include a power backoff value selected to be applied to a set of transmit setting instruction states in the future.

[0175] At least one of the transmission setting instruction states in a pair of transmission setting instruction states may be active, and another transmission setting instruction state in a pair of transmission setting instruction states may be inactive.

[0176] The first report may include at least one of the following: a single power headroom report, multiple transmit / receive point power headroom reports (multiple transmit / receive point power headroom reports may include power backoff values ​​for multiple alternate transmit setting instruction states), or a Layer 1 reference signal received power report (the Layer 1 reference signal received power report may include power backoff values ​​for potential transmit setting instruction state switches).

[0177] The exemplary device may further be configured to configure user equipment using at least one of a single-power headroom reporting mode or a two-power headroom reporting mode in response to a first report including a Layer 1 reference signal received power report.

[0178] The apparatus in this embodiment may be further configured to determine, based at least in part on the first report, a further set of transmit-configuration instruction states which may be associated with the apparatus and network nodes, and which may differ at least in part from a set of transmit-configuration instruction states, and to transmit a third instruction for an uplink grant associated with the further set of transmit-configuration instruction states to the user equipment.

[0179] The third instruction may include a single downlink control information message.

[0180] The apparatus in this embodiment may further be configured to send a fourth instruction to a user device to activate a second set of transmit configuration instruction states associated with a network node, the set of transmit configuration instruction states may include at least a first transmit configuration instruction state from a first set of transmit configuration instruction states and a second transmit configuration instruction state from a second set of transmit configuration instruction states.

[0181] The apparatus in this embodiment may further be configured to send a fifth instruction for an uplink grant associated with a third set of transmit setting instruction states associated with the apparatus to a user device, the third set of transmit setting instruction states may differ at least partially from a set of transmit setting instruction states.

[0182] The fifth instruction may include a downlink control information message.

[0183] The apparatus in this embodiment may further be configured to send a sixth instruction to the user equipment for a threshold value of the power backoff value for sending the first report.

[0184] The power backoff threshold can be included in the wireless resource control reset message.

[0185] The exemplary device may further be configured to receive a seventh instruction from user equipment, which is a set of at least one transmit setting instruction states for which a power backoff value is not required.

[0186] The exemplary device may further be configured to receive an eighth instruction from the user device indicating that the presence of a power backoff value is at least partially based on at least one of simultaneous transmission or maximum allowable exposure.

[0187] At least one indication showing the existence of a power backoff value may include an indication showing a range of power backoff values.

[0188] The exemplary device may further be configured to send a first report to a network node via a backhaul link.

[0189] The existence of a power backoff value may include a maximum power reduction value for power management.

[0190] This device may include a first transmit / receive point, and the network node may include a second transmit / receive point.

[0191] An exemplary method in one embodiment can provide a method that includes: a first network node transmitting a first instruction to a user device for activating a first set of transmit setting instruction states associated with the first network node; transmitting a second instruction of the network node to the user device, the user device being configured to perform simultaneous transmission with the first network node; and receiving a first report from the user device, the first report being the first instruction which may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0192] The first report may include multiple indications showing the presence of a power backoff value, each of which may be associated with a set of transmit setting indication states.

[0193] The power backoff value associated with a set of transmit setting instruction states may include the power backoff value applied to that set of transmit setting instruction states.

[0194] The first report may include at least one of multiple transmit / receive point power headroom reports or a Layer 1 reference signal received power report.

[0195] A power backoff value associated with a set of transmit setting instruction states may include a power backoff value selected to be applied to a set of transmit setting instruction states in the future.

[0196] At least one of the transmission setting instruction states in a pair of transmission setting instruction states may be active, and another transmission setting instruction state in a pair of transmission setting instruction states may be inactive.

[0197] The first report may include at least one of the following: a single power headroom report, multiple transmit / receive point power headroom reports (multiple transmit / receive point power headroom reports may include power backoff values ​​for multiple alternate transmit setting instruction states), or a Layer 1 reference signal received power report (the Layer 1 reference signal received power report may include power backoff values ​​for potential transmit setting instruction state switches).

[0198] The method of this embodiment may further include configuring the user equipment with a single power headroom reporting mode or at least one of two power headroom reporting modes in response to a first report including a Layer 1 reference signal received power report.

[0199] An exemplary method may further include determining, based at least in part on the first report, a further set of transmit-configuration directive states which may be associated with the first network node and network nodes, and which may differ at least in part from a set of transmit-configuration directive states, and transmitting a third directive for uplink grants associated with the further set of transmit-configuration directive states to user equipment.

[0200] The third instruction may include a single downlink control information message.

[0201] An exemplary method may further include sending a fourth instruction to user equipment to activate a second set of transmit configuration instruction states associated with a network node, the set of transmit configuration instruction states may include at least a first transmit configuration instruction state from a first set of transmit configuration instruction states and a second transmit configuration instruction state from a second set of transmit configuration instruction states.

[0202] An exemplary method may include sending a fifth uplink grant instruction to the user equipment, relating to a third set of transmit configuration instruction states associated with a first network node, the third set of transmit configuration instruction states may differ at least partially from a set of transmit configuration instruction states.

[0203] The fifth instruction may include a downlink control information message.

[0204] The exemplary method may further include sending a sixth instruction to the user device indicating a threshold power backoff value for sending a first report.

[0205] The power backoff threshold may be included in the wireless resource control reset message.

[0206] The exemplary method may further include receiving a seventh instruction from the user equipment indicating at least one set of transmit setting instruction states in which a power backoff value is not required.

[0207] An exemplary method may further include receiving an eighth instruction from the user equipment indicating that the presence of a power backoff value is at least partially based on at least one of simultaneous transmission or maximum allowable exposure.

[0208] At least one indication showing the existence of a power backoff value may include an indication showing a range of power backoff values.

[0209] An exemplary method may further include sending the first report to a network node via a backhaul link.

[0210] The existence of a power backoff value may include a maximum power reduction value for power management.

[0211] The first network node may include a first transmit / receive point, and the network node may include a second transmit / receive point.

[0212] In an exemplary embodiment, the device may include a circuit configured to transmit a first instruction to a user device for activating a first set of transmit setting instruction states associated with the device, and transmit a second instruction to the user device for a network node, the user device being configured to perform simultaneous transmission with the device and the network node, and receive a first report from the user device, the first report being configured to include at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0213] In an exemplary embodiment, the apparatus may comprise a processing circuit and a memory circuit including computer program code, the memory circuit and the computer program code, in cooperation with the processing circuit, transmit a first instruction to a user device to activate a first set of transmit setting instruction states associated with the device, transmit a second instruction to a network node to the user device, the user device may be configured to perform simultaneous transmission with the device and the network node, and receive a first report from the user device, the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0214] In an exemplary embodiment, the apparatus may include means for transmitting a first instruction to a user device for activating a first set of transmit setting instruction states associated with the apparatus; means for transmitting a second instruction to a network node to the user device, wherein the user device may be configured to perform simultaneous transmission with the apparatus and the network node; and means for receiving a first report from the user device, wherein the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0215] In exemplary embodiments, the apparatus may include means for performing any of the exemplary methods described above.

[0216] In an exemplary embodiment, a non-temporary computer-readable medium storing instructions causing at least one processor to transmit to a user device, by transmitting a first instruction to activate a first set of transmit-setting instruction states associated with the first network node by the first network node; transmit to the user device, by transmitting a second instruction to the network node, the user device being configured to perform simultaneous transmission with the first network node and the network node; and receive a first report from the user device, the first report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit-setting instruction states.

[0217] A non-temporary computer-readable medium storing program instructions for performing, in an exemplary embodiment, at least: causing a first network node to cause a user device to transmit a first instruction to activate a first set of transmit setting instruction states associated with the first network node; causing the user device to transmit a second instruction of the network node, the user device may be configured to perform simultaneous transmission with the first network node and the network node; and causing the user device to receive a first report, the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0218] In other exemplary embodiments, a machine-readable non-temporary program storage device may be provided, which embodies machine-executable instructions to perform an operation including: causing a first network node to cause a user device to transmit a first instruction to activate a first set of transmit-setting instruction states associated with the first network node; causing the user device to transmit a second instruction of the network node, the user device may be configured to perform simultaneous transmission with the first network node and the network node; and causing the user device to receive a first report, the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit-setting instruction states.

[0219] A non-temporary computer-readable medium containing instructions that, when performed by the device, cause the device to perform at least: cause a first network node to transmit a first instruction to a user device to activate a first set of transmit setting instruction states associated with the first network node; cause the user device to transmit a second instruction to the network node, the user device may be configured to perform simultaneous transmission with the first network node and the network node; and cause the user device to receive a first report, the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0220] A computer implementation system comprising: at least one processor; and at least one non-temporary memory that stores instructions causing the system to perform, when executed by the at least one processor, at least: transmit a first instruction to a user device for a first set of transmit-configuration instruction states associated with the first network node; transmit a second instruction to the user device, which is configured to perform simultaneous transmission with the first network node and the network node; and receive a first report from the user device, which includes at least one instruction indicating the presence of a power backoff value associated with a set of transmit-configuration instruction states.

[0221] A computer implementation system comprising: means for causing a first network node to transmit a first instruction to a user device for activating a first set of transmit setting instruction states associated with the first network node; means for causing the user device to transmit a second instruction of the network node, wherein the user device may be configured to perform simultaneous transmission with the first network node and the network node; and means for receiving a first report from the user device, wherein the first report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0222] In an exemplary embodiment, the device may include at least one processor and at least one memory that stores instructions, when executed by the at least one processor, causing the device to transmit an instruction to a user device to activate a second set of transmit setting instruction states associated with the device, and to receive a second report from the user device, the second report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0223] The second report may include multiple indications showing the presence of a power backoff value, each of which may be associated with a set of transmit setting indication states.

[0224] The power backoff value associated with a set of transmit setting instruction states may include the power backoff value applied to that set of transmit setting instruction states.

[0225] The second report may include at least one of multiple transmit / receive point power headroom reports or a Layer 1 reference signal received power report.

[0226] A power backoff value associated with a set of transmit setting instruction states may include a power backoff value selected to be applied to a set of transmit setting instruction states in the future.

[0227] At least one of the transmission setting instruction states in a pair of transmission setting instruction states may be active, and the other transmission setting instruction states in a pair of transmission setting instruction states may be inactive.

[0228] The second report may include at least one of the following: a single power headroom report, multiple transmit / receive point power headroom reports (multiple transmit / receive point power headroom reports may include power backoff values ​​for multiple alternate transmit setting instruction states), or a Layer 1 reference signal received power report (the Layer 1 reference signal received power report may include power backoff values ​​for potential transmit setting instruction state switches).

[0229] In response to a first report including a Layer 1 reference signal received power report, the user equipment may be further configured to use a single power headroom reporting mode or at least one of two power headroom reporting modes.

[0230] The exemplary device may further be configured to receive instructions from user equipment indicating at least one set of transmit setting instruction states in which a power backoff value is not required.

[0231] The exemplary device may further be configured to receive instructions from user equipment indicating the presence of a power backoff value based at least partially on either simultaneous transmission or the maximum allowable exposure.

[0232] At least one indication of the existence of a power backoff value may include an indication of a range for the power backoff value.

[0233] The exemplary device may also be configured to send a second report to a network node via a backhaul link.

[0234] A set of transmit configuration states may include at least a first set of transmit configuration states associated with a network node and a second set of transmit configuration states.

[0235] In one embodiment, an exemplary method may provide a method that includes using a first network node to send an instruction to a user device to activate a second set of transmit configuration instruction states associated with the device, and receiving a second report from the user device, the second report may include at least one instruction indicating the presence of a power backoff value associated with a set of transmit configuration instruction states.

[0236] The second report may include multiple indications showing the presence of a power backoff value, each of which may be associated with a set of transmit setting indication states.

[0237] The power backoff value associated with a set of transmit setting instruction states may include the power backoff value applied to that set of transmit setting instruction states.

[0238] The second report may include at least one of the following: multiple transmit / receive point power headroom reports, or a Layer 1 reference signal received power report.

[0239] A power backoff value associated with a set of transmit setting instruction states may include a power backoff value that will be selected to be applied to a set of transmit setting instruction states in the future.

[0240] At least one of the transmission setting instruction states in a pair of transmission setting instruction states may be active, and another transmission setting instruction state in a pair of transmission setting instruction states may be inactive.

[0241] The second report may include at least one of the following: a single power headroom report, multiple transmit / receive point power headroom reports (multiple transmit / receive point power headroom reports may include power backoff values ​​for multiple alternate transmit setting instruction states), or a Layer 1 reference signal received power report (the Layer 1 reference signal received power report may include power backoff values ​​for potential transmit setting instruction state switches).

[0242] An exemplary method may further include configuring the user equipment with a single power headroom reporting mode or at least one of two power headroom reporting modes in response to a first report including a Layer 1 reference signal received power report.

[0243] The exemplary method may further include receiving instructions from the user equipment for at least one set of transmit setting instruction states that do not require a power backoff value.

[0244] The exemplary method may further include receiving instructions from the user equipment indicating that the presence of a power backoff value is at least partially based on at least one of simultaneous transmission or maximum allowable exposure.

[0245] At least one indication showing the existence of a power backoff value may include an indication showing a range of power backoff values.

[0246] The exemplary method may further include sending a second report to a network node via a backhaul link.

[0247] A set of transmission configuration indication states may include at least a transmission configuration indication state from a first set of transmission configuration indication states related to a network node and a transmission configuration indication state from a second set of transmission configuration indication states.

[0248] In an exemplary embodiment, the apparatus is configured to execute a circuit for transmitting an instruction to the user equipment to activate a second set of transmission configuration indication states related to the apparatus, and a circuit for receiving, from the user equipment, a second report, where the second report may include at least one instruction indicating the presence of a power back-off value related to a set of transmission configuration indication states.

[0249] In an exemplary embodiment, the apparatus includes a processing circuit and a memory circuit including computer program code, where the memory circuit and the computer program code are configured by the processing circuit to cause the apparatus to transmit an instruction to the user equipment to activate a second set of transmission configuration indication states related to the apparatus, and to receive, from the user equipment, a second report, where the second report includes at least one instruction indicating the presence of a power back-off value related to a set of transmission configuration indication states.

[0250] In an exemplary embodiment, the apparatus includes means for transmitting an instruction to the user equipment to activate a second set of transmission configuration indication states related to the apparatus, and means for receiving, from the user equipment, a second report, where the second report includes at least one instruction indicating the presence of a power back-off value related to a set of transmission configuration indication states.

[0251] In an exemplary embodiment, the apparatus may include means for performing any of the above-described exemplary methods.

[0252] A non-transient computer-readable medium containing instructions to cause at least one processor to perform the following actions when executed on at least one processor: to cause a first network node to send instructions to a user device to activate a second set of transmit configuration instruction states associated with the first network node; and to receive a second report from the user device, the second report including at least one instruction indicating the presence of a set of transmit configuration instruction states and associated power backoff values.

[0253] A non-temporary computer-readable medium storing program instructions for performing at least the following in an exemplary embodiment: causing a first network node to send an instruction to a user device to activate a second set of transmit configuration instruction states associated with the first network node; and causing the user device to receive a second report, the second report including at least one instruction indicating the presence of a set of transmit configuration instruction states and associated power backoff values.

[0254] In another exemplary embodiment, a machine-readable non-temporary program storage device is provided, capable of tangibly embodying machine-executable instructions to perform an operation, the operation of causing a first network node to cause a user device to transmit an instruction to activate a second set of transmit-configuration instruction states associated with the first network node, and causing the user device to receive a second report, the second report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit-configuration instruction states.

[0255] In other exemplary embodiments, the non-transient computer-readable medium, when executed by the device, includes instructions to cause the device to send instructions to a user device to activate a second set of transmit-configuration instruction states associated with the first network node, and to receive a second report from the user device, the second report including at least one instruction indicating the presence of a set of transmit-configuration instruction states and associated power backoff values.

[0256] A computer implementation system comprising: at least one processor; and at least one non-temporary memory that stores instructions that, when executed by the at least one processor, cause the system to perform at least: cause a first network node to send an instruction to a user device to activate a second set of transmit configuration instruction states associated with the first network node; and cause the system to receive a second report from the user device, the second report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit configuration instruction states.

[0257] A computer implementation system comprising: means for causing a first network node to send an instruction to a user device to activate a second set of transmit setting instruction states associated with the first network node; and means for causing the user device to receive a second report, the second report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states.

[0258] As used herein, the term “non-transient” refers to a limitation of the medium itself (i.e., being tangible and not a signal), as opposed to a limitation of the persistence of data storage (e.g., ROM versus RAM).

[0259] It should be understood that the above description is merely illustrative. Those skilled in the art can devise various alternatives and modifications. For example, the features described in the various dependent claims can be combined with each other in any suitable combination. Furthermore, features from the different embodiments described above can be selectively combined to create new embodiments. Therefore, this specification is intended to encompass all such alternatives, modifications, and variations that fall within the scope of the appended claims.

Claims

1. It is a device, At least one processor, When executed by the at least one processor, the device has at least, Receiving a first instruction from a first network node to activate a first set of transmission setting instruction states associated with the first network node, Receiving a second instruction from the second network node to the first network node, wherein the device is configured to perform simultaneous transmission with the first network node and the second network node, To transmit a first report to the first network node, the first report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states, At least one non-temporary memory that stores instructions to execute, A device equipped with the following features.

2. The apparatus according to claim 1, wherein the first report includes a plurality of indications showing the presence of a power backoff value, each of the plurality of indications being associated with a set of transmission setting instruction states.

3. The at least one memory, when executed by the at least one processor, provides the device with To determine the overlap between the transmission of transmission setting instruction states from the first set of transmission setting instruction states and the transmission of transmission setting instruction states from the second set of transmission setting instruction states related to the second network node, The aforementioned power backoff value is The aforementioned overlaps that were determined, The transmission power set for each transmission setting instruction state, Maximum value of equivalent isotropic radiated power, Power headroom, Limitation of maximum output power, or Maximum total radiated power, The decision will be based at least partially on this, The apparatus according to claim 1 or 2, which stores an instruction to execute.

4. The at least one memory, when executed by the at least one processor, provides the device with To transmit a second report to the second network node, wherein the second report is at least partially different from the first report. The apparatus according to any one of claims 1 to 3, which stores a command to execute.

5. The apparatus according to any one of claims 1 to 4, wherein the power backoff value associated with the set of transmission setting instruction states includes a power backoff value applied to the set of transmission setting instruction states.

6. The first report states, Power headroom reporting for multiple transmit / receive points, or Layer 1 reference signal received power report, The apparatus according to claim 5, comprising at least one of the following.

7. The apparatus according to any one of claims 1 to 4, wherein the power backoff value associated with the set of transmission setting instruction states includes a power backoff value selected for application to the set of transmission setting instruction states in the future.

8. At least one of the transmission setting instruction states in the set of transmission setting instruction states is active, The other transmission setting instruction states in the aforementioned set of transmission setting instruction states are inactive. The apparatus according to claim 7.

9. The first report states at least Power headroom report, Multiple transmit / receive point power headroom reports, wherein the multiple transmit / receive point power headroom reports include power backoff values ​​for multiple alternative transmit setting instruction states, or A Layer 1 reference signal received power report, wherein the Layer 1 reference signal received power report includes a power backoff value for a potential transmit setting instruction state switch. The apparatus according to claim 7 or 8, comprising one of the following.

10. The Layer 1 reference signal received power report is, Single power headroom reporting mode, Two power headroom reporting modes, The apparatus according to claim 9, configured to trigger a configuration of the apparatus having at least one of the following.

11. The at least one memory, when executed by the at least one processor, provides the device with Receiving a third instruction for an uplink grant from the first network node, relating to a further set of transmit setting instruction states associated with the first network node and the second network node, wherein the further set of transmit setting instruction states is at least partially different from the set of transmit setting instruction states, The apparatus according to any one of claims 1 to 10, which stores a command to execute.

12. The apparatus according to claim 11, wherein the third instruction includes a single downlink control information message.

13. The at least one memory, when executed by the at least one processor, provides the device with Receiving a fourth instruction to activate a second set of transmission setting instruction states associated with the second network node, wherein the set of transmission setting instruction states comprises at least: The first transmission setting instruction state from the first set of transmission setting instruction states, A second transmission setting instruction state from the second set of the aforementioned transmission setting instruction states, Including receiving, The apparatus according to any one of claims 1 to 10, which stores a command to execute.

14. The at least one memory, when executed by the at least one processor, provides the device with Receiving a fifth uplink grant instruction from the first network node, relating to a third set of transmission setting instruction states associated with the first network node, Receiving a sixth uplink grant instruction from the second network node, relating to a fourth set of transmission setting instruction states associated with the second network node, It stores the command to execute, The third set of transmission setting instruction states differs at least partially from the first set of transmission setting instruction states, and the fourth set of transmission setting instruction states differs at least partially from the first set of transmission setting instruction states. The apparatus according to claim 13.

15. The apparatus according to claim 14, wherein the fifth instruction and the sixth instruction each include a downlink control information message.

16. The fourth instruction is, The aforementioned first network node, or, The second network node, The apparatus according to any one of claims 13 to 15, which receives from any of the following.

17. The at least one memory, when executed by the at least one processor, provides the device with Receiving a seventh instruction for the threshold of the power backoff value for transmitting the first report, The apparatus according to any one of claims 1 to 16, which stores an instruction to execute.

18. The apparatus according to claim 17, wherein the threshold value of the power backoff value is included in the wireless resource control reset message.

19. The first report stated, Change the configured transmission settings instruction status. Add a transmission setting instruction status, or The power headroom of the current link fell below the threshold. The apparatus according to any one of claims 1 to 18, transmitted based on at least one of the following.

20. The at least one memory, when executed by the at least one processor, provides the device with Transmit an eighth instruction of at least one set of transmit setting instruction states that does not require a power backoff value. The apparatus according to any one of claims 1 to 19, which stores an instruction to execute.

21. The at least one memory, when executed by the at least one processor, provides the device with The existence of the aforementioned power backoff value is at least partially, The aforementioned simultaneous transmission, or Maximum permissible exposure, Sending a ninth instruction indicating that it is based on at least one of the following: The apparatus according to any one of claims 1 to 20, which stores an instruction to execute.

22. The apparatus according to any one of claims 1 to 21, wherein the at least one indication of the existence of the power backoff value includes an indication of a range of power backoff values.

23. The apparatus according to any one of claims 1 to 22, wherein the existence of the power backoff value includes a power management maximum power reduction value.

24. The apparatus according to any one of claims 1 to 23, wherein the first network node includes a first transmission / reception point, and the second network node includes a second transmission / reception point.

25. The user device receives a first instruction from the first network node to activate a first set of transmission setting instruction states associated with the first network node, Receiving a second instruction from the second network node to the first network node, wherein the user device is configured to perform simultaneous transmission with the first network node and the second network node, To transmit a first report to the first network node, wherein the first report includes at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states, Methods that include...

26. It is a device, Means for receiving a first instruction from a first network node to activate a first set of transmission setting instruction states associated with the first network node, A means for receiving a second instruction from a second network node from a first network node, wherein the device is configured to perform simultaneous transmission with the first network node and the second network node, and includes receiving means. A means for transmitting a first report to the first network node, wherein the first report includes at least one instruction indicating the presence of a power backoff value associated with a set of transmission setting instruction states, A device including a device.

27. To cause the user equipment to receive a first instruction from the first network node to activate a first set of transmission setting instruction states associated with the first network node, The first network node receives a second instruction from the second network node, and the user device is configured to perform simultaneous transmission with the first network node and the second network node, and the receiving of the instruction is as follows: The first network node is to transmit a first report, the first report including at least one instruction indicating the presence of a power backoff value associated with a set of transmit setting instruction states. A non-temporary computer-readable medium containing program instructions for at least the execution of a program.

28. A non-temporary computer-readable medium storing program instructions for performing the method according to any one of claims 25 to 49.

29. It is a device, At least one processor, When executed by the aforementioned at least one processor, at least, To transmit a first instruction to the user equipment for activating a first set of transmission setting instruction states related to the device, The user device transmits a second instruction from the network node, the user device being configured to perform simultaneous transmission with the device and the network node. Receiving a first report from the user device, wherein the first report includes at least one instruction indicating the presence of a power backoff value associated with a set of transmission setting instruction states, At least one non-temporary memory that stores instructions for causing the device to execute, A device equipped with the following features.

30. The apparatus according to claim 29, wherein the first report includes a plurality of indications showing the presence of a power backoff value, each of the plurality of indications being associated with a set of transmit setting instruction states.

31. The apparatus according to claim 29 or 30, wherein the power backoff value associated with the set of transmission setting instruction states includes a power backoff value applied to the set of transmission setting instruction states.

32. The first report states, Power headroom reporting for multiple transmit / receive points, or Layer 1 reference signal received power report, The apparatus according to claim 31, comprising at least one of the following.

33. The apparatus according to any one of claims 29 to 32, wherein the power backoff value associated with the set of transmission setting instruction states includes a power backoff value selected for application to the set of transmission setting instruction states in the future.

34. At least one of the transmission setting instruction states in the set of transmission setting instruction states is active, The other transmission setting instruction states in the aforementioned set of transmission setting instruction states are inactive. The apparatus according to claim 33.

35. The first report states, Power headroom report, Multiple transmit / receive point power headroom reports, wherein the multiple transmit / receive point power headroom reports include power backoff values ​​for multiple alternative transmit setting instruction states, or A Layer 1 reference signal received power report, wherein the Layer 1 reference signal received power report includes a power backoff value for a potential transmit setting instruction state switch. The apparatus according to claim 33 or 34, comprising at least one of the following.

36. The at least one memory, when executed by the at least one processor, provides the device with In response to the first report, which includes a Layer 1 reference signal received power report, Single power headroom reporting mode, 2 Power headroom reporting modes, The user equipment must consist of at least one of the following: The apparatus according to claim 35, which stores a command to execute.

37. The at least one memory, when executed by the at least one processor, provides the device with Based on the first report, determine, at least in part, a further set of transmit configuration states, wherein the further set of transmit configuration states is associated with devices and network nodes, and the further set of transmit configuration states is at least partially different from a set of transmit configuration states. Sending a third instruction to the user equipment for the uplink grant related to further setting of the transmission settings instruction state, The apparatus according to any one of claims 29 to 36, which stores an instruction to execute.

38. The apparatus according to claim 37, wherein the third instruction includes a single downlink control information message.

39. The at least one memory, when executed by the at least one processor, provides the device with Sending a fourth instruction to the user device to activate a second set of transmission configuration instruction states related to the network node, Selecting a first transmission setting instruction state from a set of first transmission setting instruction states, Selecting the second transmission setting instruction state from the second set of transmission setting instruction states, The apparatus according to any one of claims 29 to 36, which stores an instruction to execute.

40. The at least one memory, when executed by the at least one processor, provides the device with Transmitting a fifth instruction for an uplink grant to the user equipment, wherein the third set of transmission setting instruction states is at least partially different from one set of transmission setting instruction states, to transmit The apparatus according to claim 39, which stores a command to execute.

41. The apparatus according to claim 40, wherein the fifth instruction includes a downlink control information message.

42. The at least one memory, when executed by the at least one processor, provides the device with To send a sixth instruction to the user device for the threshold of the power backoff value for sending the first report, The apparatus according to any one of claims 29 to 41, which stores an instruction to execute.

43. The apparatus according to claim 42, wherein the threshold value of the power backoff value is included in the wireless resource control reset message.

44. The at least one memory, when executed by the at least one processor, provides the device with The system receives a seventh instruction from the user equipment, which indicates at least one set of transmission setting instruction states where a power backoff value is not required. The apparatus according to any one of claims 29 to 43, which stores an instruction to execute.

45. The at least one memory, when executed by the at least one processor, provides the device with From the user equipment, the presence of a power backoff value is at least partially detected. The aforementioned simultaneous transmission, or Maximum permissible exposure, Receiving an eighth instruction indicating that it is based on at least one of the following, The apparatus according to any one of claims 29 to 44, which stores an instruction to execute.

46. The apparatus according to any one of claims 29 to 45, wherein at least one indicator indicating the presence of a power backoff value includes an indicator indicating a range of power backoff values.

47. The at least one memory, when executed by the at least one processor, provides the device with Sending the first report to the network node via the backhaul link, The apparatus according to any one of claims 29 to 46, which stores an instruction to execute.

48. The apparatus according to any one of claims 29 to 47, wherein the existence of a power backoff value includes a maximum power reduction value for power management.

49. The apparatus according to any one of claims 29 to 48, wherein the apparatus comprises a first transmitting and receiving point, and the network node comprises a second transmitting and receiving point.

50. It is a device, At least one processor, When executed by the at least one processor, the device has at least, To send an instruction to the user device to activate a second set of transmission setting instruction states related to the device, Receiving a second report from the user equipment, wherein the second report includes at least one instruction indicating the existence of a power backoff value associated with a set of transmission setting instruction states, At least one non-temporary memory that stores instructions to execute, A device equipped with the following features.

Images