Dynamic transmit power indication for PDSCH

Abstract

A user equipment (UE) is configured to decode a set of power offset values from a base station based on a signal received from the base station; decoding downlink control information (DCI) based on a signal received from the base station, the DCI indicating a power offset value from the set of power offset values; and determining a transmission power of a physical downlink shared channel (PDSCH) to be transmitted by the base station based at least on the power offset value indicated by the DCI.

Description

[0001] Priority / Incorporated by Reference

[0002] This application claims priority to U.S. Provisional Application Serial No. 63 / 371,103, filed on August 11, 2022, entitled “Dynamic Transmission Power Indication for PDSCH,” the entire contents of which are incorporated herein by reference. Background Art

[0003] User equipment (UE) may be connected to a network via a base station. Typically, energy saving techniques implemented on the network side and / or the UE side are designed to save power at the UE. However, energy consumption is also a concern on the network side, and techniques designed to mitigate network power consumption may also be utilized.

[0004] A network may utilize network power saving techniques that include dynamically changing the transmit power of a physical downlink shared channel (PDSCH) transmission. For example, a base station may reduce the PDSCH transmit power for one or more UEs with good coverage to save energy without negatively impacting performance. A need has been identified for a technique that is configured to enable a UE to determine when the network dynamically changes the PDSCH transmit power to support implementation of this type of network power saving technique. Summary of the invention

[0005] Some exemplary embodiments relate to a device of a user equipment (UE), the device having a processing circuit configured to: decode a set of power offset values ​​from a base station based on a signal received from the base station; decode downlink control information (DCI) based on the signal received from the base station, the DCI indicating a power offset value from the set of power offset values; and determine a transmit power of a physical downlink shared channel (PDSCH) to be sent by the base station based at least on the power offset value indicated by the DCI.

[0006] Other exemplary embodiments relate to a processor configured to: decode a set of power offset values ​​from a base station based on a signal received from the base station; decode downlink control information (DCI) based on the signal received from the base station, the DCI indicating a power offset value from the set of power offset values; and determine a transmit power of a physical downlink shared channel (PDSCH) to be sent by the base station based at least on the power offset value indicated by the DCI.

[0007] Other exemplary embodiments relate to a base station device having a processing circuit configured to: configure a transceiver circuit to send a power offset value set to a user equipment (UE); and configure the transceiver circuit to send downlink control information (DCI) to the UE, the DCI indicating a power offset value from the power offset value set, wherein the UE determines a transmit power of a physical downlink shared channel (PDSCH) to be sent by the base station based at least on the power offset value indicated by the DCI.

[0008] Additional exemplary embodiments relate to a processor configured to configure a transceiver circuit to send a set of power offset values ​​to a user equipment (UE); and to configure the transceiver circuit to send downlink control information (DCI) to the UE, the DCI indicating a power offset value from the set of power offset values, wherein the UE determines a transmit power of a physical downlink shared channel (PDSCH) to be sent by the base station based at least on the power offset value indicated by the DCI. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 Exemplary network arrangements are shown according to various exemplary embodiments.

[0010] Figure 2 An exemplary user equipment (UE) is shown in accordance with various exemplary embodiments.

[0011] Figure 3 An exemplary base station according to various exemplary embodiments is shown.

[0012] Figure 4 A signaling diagram for dynamic transmit power indication for a Physical Downlink Shared Channel (PDSCH) according to various exemplary embodiments is shown.

[0013] Figure 5 DCI format 2_Z according to various exemplary embodiments is shown.

[0014] Figure 6 DCI format 1_1 according to various exemplary embodiments is shown. DETAILED DESCRIPTION

[0015] The exemplary embodiments may be further understood with reference to the following description and related drawings, wherein like elements are provided with like reference numerals. The exemplary embodiments relate to network power saving. As will be described in more detail below, the exemplary techniques introduced herein may be used to mitigate the impact of certain types of network power saving mechanisms on user equipment (UE) and / or network performance.

[0016] The exemplary embodiments are described with respect to a UE. However, reference to a UE is provided for illustrative purposes only. The exemplary embodiments may be utilized with any electronic component that can establish a connection with a network and is configured with hardware, software, and / or firmware for exchanging information and data with the network. Therefore, the UE described herein is used to represent any electronic component.

[0017] The exemplary embodiments are also described with reference to a fifth generation (5G) new radio (NR) network and a next generation Node B (gNB). However, reference to a 5G NR network and gNB is provided for illustrative purposes only. The exemplary embodiments may be utilized with any suitable type of network and base station.

[0018] The network may implement a network power saving mechanism where the network dynamically changes the transmit power of the Physical Downlink Shared Channel (PDSCH) transmissions. For example, the gNB may decide to reduce the PDSCH transmit power for UEs that meet certain conditions. Typically, the transmit power of PDSCH is fixed by the gNB for all UEs in a cell. As a result, UEs in good coverage may experience high signal-to-interference-plus-noise ratio (SINR) levels. Therefore, the PDSCH transmit power may be reduced for certain UEs (e.g., UEs deployed in good coverage, etc.) to achieve network power saving benefits without incurring performance losses for the UEs.

[0019] According to some aspects, exemplary embodiments introduce techniques related to signaling a transmit power indication for a PDSCH to support dynamically changing the PDSCH transmit power to achieve network power savings. The exemplary techniques introduced herein can be used independently of each other, in conjunction with other currently implemented transmit power indication techniques, future implementations of transmit power indication techniques, or independently of other transmit power indication techniques.

[0020] Figure 1 An exemplary network arrangement 100 according to various exemplary embodiments is shown. The exemplary network arrangement 100 includes a UE 110. Those skilled in the art will appreciate that the UE 110 may be any type of electronic component configured to communicate via a network, such as a mobile phone, a tablet computer, a desktop computer, a smart phone, a phablet, an embedded device, a wearable device, an Internet of Things (IoT) device, etc. It should also be appreciated that an actual network arrangement may include any number of UEs used by any number of users. Therefore, the example of a single UE 110 is provided for illustrative purposes only.

[0021] UE 110 may be configured to communicate with one or more networks. In the example of network configuration 100, the network with which UE 110 may wirelessly communicate is a 5G NR radio access network (RAN) 120. However, UE 110 may also communicate with other types of networks (e.g., 5G cloud RAN, next generation RAN (NG-RAN), long term evolution (LTE) RAN, traditional cellular network, wireless local area network (WLAN), etc.), and UE 110 may also communicate with the network via a wired connection. Referring to the exemplary embodiment, UE 110 may establish a connection with 5G NR RAN 120. Therefore, UE 110 may have at least a 5G NR chipset to communicate with 5G NR RAN 120.

[0022] The 5G NR RAN 120 may be part of a cellular network that may be deployed by a network operator, such as Verizon, AT&T, T-Mobile, etc. The 5G NR RAN 120 may include, for example, base stations or access nodes (NodeB, eNodeB, HeNB, eNBS, gNB, gNodeB, macrocell base stations, microcell base stations, small cell base stations, femtocell base stations, etc.) configured to transmit and receive communication traffic from UEs equipped with appropriate cellular chipsets.

[0023] In the network arrangement 100, the 5G NR RAN 120 deploys a gNB 120A. The gNB 120A may be configured with multiple TRPs. Each TRP may represent one or more components configured to send and / or receive signals. In some embodiments, multiple TRPs may be deployed locally at the gNB 120A. In other embodiments, multiple TRPs may be distributed at different locations and connected to the gNB 120A via a backhaul connection. For example, multiple small cells may be deployed at different locations and connected to the gNB 120A. However, these examples are provided for illustrative purposes only. Those skilled in the art will understand that the TRP is configured to adapt to a variety of different conditions and deployment scenarios. Therefore, any reference to a TRP as a specific network component or to multiple TRPs deployed in a specific arrangement is for illustrative purposes only. The TRP described herein may represent any type of network component configured to send and / or receive beams. As indicated above, in some examples, the terms "TRP" and "cell" may be used interchangeably to generally refer to the same connection and / or node.

[0024] Those skilled in the art will appreciate that any relevant process may be performed for the UE 110 to connect to the 5G NR RAN 120. For example, as discussed above, the 5G NR RAN 120 may be associated with a particular cellular provider at which the UE 110 and / or its user has protocol and credential information (e.g., stored on a SIM card). Upon detecting the presence of the 5G NR RAN 120, the UE 110 may send corresponding credential information in order to associate with the 5G NR RAN 120. More specifically, the UE 110 may be associated with a particular base station (e.g., gNB 120A).

[0025] The network arrangement 100 also includes a cellular core network 130, the Internet 140, an IP multimedia subsystem (IMS) 150, and a network service backbone 160. The cellular core network 130 may refer to an interconnected set of components that manage the operation and traffic of the cellular network. It may include an evolved packet core (EPC) and / or a 5G core (5GC). The cellular core network 130 also manages the traffic flowing between the cellular network and the Internet 140. The IMS 150 may generally be described as an architecture for delivering multimedia services to the UE 110 using the IP protocol. The IMS 150 may communicate with the cellular core network 130 and the Internet 140 to provide multimedia services to the UE 110. The network service backbone 160 communicates directly or indirectly with the Internet 140 and the cellular core network 130. The network service backbone 160 may generally be described as a set of components (e.g., servers, network storage arrangements, etc.) that implement a set of services that can be used to extend the functionality of the UE 110 to communicate with various networks.

[0026] Figure 2 An exemplary UE 110 is shown according to various exemplary embodiments. The UE 110 sends Figure 1 100. UE 110 may include a processor 205, a memory arrangement 210, a display device 215, an input / output (I / O) device 220, a transceiver 225, and other components 230. Other components 230 may include, for example, an audio input device, an audio output device, a power supply, a data acquisition device, a port for electrically connecting UE 110 to other electronic devices, etc.

[0027] The processor 205 may be configured to execute a plurality of engines of the UE 110. For example, the engines may include a fast transmit power indication engine 235. The fast transmit power indication engine 235 may perform various operations related to determining whether a transmit power change of a downlink signal and / or channel has occurred. To provide some general examples, the fast transmit power engine 235 may perform various operations such as, but not limited to, receiving a set of power offset values, receiving downlink control information (DCI), and determining the transmit power of certain downlink signals and / or channels to be received by the UE 110.

[0028] The engine 235 referenced above is provided as an application (e.g., program) executed by the processor 205 for illustrative purposes only. The functionality associated with the engine 235 may also be represented as a separate combined component of the UE 110, or may be a modular component coupled to the UE 110, such as an integrated circuit with or without firmware. For example, the integrated circuit may include an input circuit for receiving a signal and a processing circuit for processing the signal and other information. The engine may also be embodied as an application or multiple independent applications. In addition, in some UEs, the functionality described for the processor 205 is split between two or more processors (such as a baseband processor and an application processor). The exemplary embodiments may be implemented in any of these or other configurations of the UE.

[0029] Memory arrangement 210 may be a hardware component configured to store data related to operations performed by UE 110. Display device 215 may be a hardware component configured to display data to a user, and I / O device 220 may be a hardware component that enables a user to enter input. Display device 215 and I / O device 220 may be separate components or may be integrated together (such as a touch screen).

[0030] The transceiver 225 may be a hardware component configured to establish a connection with the 5G NR-RAN 120, LTE-RAN (not shown in the figure), traditional RAN (not shown in the figure), WLAN (not shown in the figure), etc. Therefore, the transceiver 225 can operate on a variety of different frequencies or channels (e.g., a continuous frequency set). The transceiver 225 may include an advanced receiver for MU-MIMO (e.g., E-MMSE-RC, R-ML, etc.). The transceiver 225 includes a circuit configured to send and / or receive signals (e.g., control signals, data signals). Such signals may be encoded using information for implementing any of the methods described herein. The processor 205 may be operably coupled to the transceiver 225 and configured to receive signals from and / or send signals to the transceiver 225. The processor 205 may be configured to encode and / or decode signals (e.g., signaling from a base station of a network) for implementing any of the methods described herein.

[0031] Figure 3 An exemplary base station 300 is shown in accordance with various exemplary embodiments. Base station 300 may represent a gNB 120A or any other type of access node through which a UE 110 may establish a connection and manage network operations.

[0032] The base station 300 may include a processor 305, a memory arrangement 310, an input / output (I / O) device 315, a transceiver 320, and other components 325. The other components 325 may include, for example, an audio input device, an audio output device, a battery, a data acquisition device, a port for electrically connecting the base station 300 to other electronic devices and / or a power source, a TxRU, a transceiver chain, an antenna element, an antenna panel, and the like.

[0033] The processor 305 may be configured to execute a number of engines of the base station 300. For example, the engines may include a fast transmit power indication engine 330. The fast transmit power indication engine 330 may perform various operations related to signaling that a transmit power change has occurred for various types of downlink signals and / or channels. To provide some general examples, the fast transmit power engine 330 may perform various operations such as, but not limited to, transmitting a set of power offset values ​​and a DCI that enables the UE 110 to determine the transmit power of certain downlink signals and / or channels.

[0034] The engine 330 described above as an application (e.g., a program) executed by the processor 305 is merely exemplary. The functionality associated with the engine 330 may also be represented as a separate combined component of the base station 300, or may be a modular component coupled to the base station 300, such as an integrated circuit with or without firmware. For example, the integrated circuit may include input circuits for receiving signals and processing circuits for processing signals and other information. In addition, in some base stations, the functionality described for the processor 305 is split between multiple processors (e.g., baseband processors, application processors, etc.). The exemplary embodiments may be implemented in any of these or other configurations of the base station.

[0035] The memory 310 may be a hardware component configured to store data related to operations performed by the base station 300. The I / O device 315 may be a hardware component or port that enables a user to interact with the base station 300.

[0036] The transceiver 320 may be a hardware component configured to exchange data with the UE 110 and any other UE in the network arrangement 100. The transceiver 320 may operate on a variety of different frequencies or channels (e.g., a continuous frequency set). Therefore, the transceiver 320 may include one or more components (e.g., a radio device) so as to be able to exchange data with various networks and UEs. The transceiver 320 includes a circuit configured to send and / or receive signals (e.g., a control signal, a data signal). Such signals may be encoded using information for implementing any of the methods described herein. The processor 305 may be operably coupled to the transceiver 320 and configured to receive signals from the transceiver 320 and / or send signals to the transceiver. The processor 305 may be configured to encode and / or decode signals (e.g., signaling from the UE) for implementing any of the methods described herein.

[0037] According to some aspects, exemplary embodiments relate to network power saving techniques in which gNB 120A dynamically changes PDSCH transmit power for certain UEs. The exemplary embodiments introduce techniques related to signaling a transmit power indication for PDSCH to support dynamically changing PDSCH transmit power to achieve network power saving.

[0038] Typically, the downlink transmit power of PDSCH is fixed by the gNB for all UEs in the cell. Therefore, UEs in good coverage may experience high SINR levels. Therefore, the PDSCH transmit power may be reduced for certain UEs (e.g., UEs deployed in good coverage, etc.) to achieve network power saving benefits without causing performance loss for the UEs.

[0039] Changing the PDSCH transmit power without notifying the UE 110 may have a negative impact on processes such as CSI feedback, rank indication (RI), precoding matrix indication (PMI), etc., and may ultimately degrade PDSCH performance. In conventional cases, the network may signal the power offset between the PDSCH resources and the CSI-RS resources to the UE 110 via RRC signaling. For example, a powerControlOffset IE may be provided to the UE 110 via an RRC message, which indicates the power offset between the PDSCH resource elements and the NZP CSI-RS resource elements. However, for the dynamic nature of network power saving techniques (changing the PDSCH transmit power for UEs that meet certain conditions), the speed at which this process can be performed is not desirable.

[0040] Figure 4 A signaling diagram 400 for dynamic transmit power indication for PDSCH according to various exemplary embodiments is shown. The signaling diagram 400 includes Figure 1 UE 110 and gNB 120A of network arrangement 100.

[0041] At 405, one or more power offset value sets are provided to the UE 110. As will be described in more detail below, the power offset values ​​may enable the UE 110 to determine the transmit power of the PDSCH. The one or more power offset value sets may be provided by RRC signaling or in any other suitable manner. Additional details regarding the power offset values ​​are provided below during the description of 415 of the signaling diagram 400.

[0042] At 410, an event or condition occurs that causes a change in a PDSCH transmit power parameter. For example, gNB 120A may reduce the PDSCH transmit power for UEs that are considered to be in good coverage or moderate coverage. However, the manner in which the transmit power update is triggered and performed is beyond the scope of the exemplary embodiments. Instead, the exemplary embodiments introduce various techniques for signaling a transmit power indication for the PDSCH after an event or condition causes a change in the PDSCH transmit power parameter.

[0043] In 415, a DCI is sent by gNB 120A to UE 110. The DCI may inform UE 110 that a transmit power update for the PDSCH has occurred at gNB 120A. Additionally, the DCI may indicate that one or more of the previously provided power offset values ​​may be used to determine the PDSCH transmit power. In some embodiments, the DCI in 415 is an already defined DCI format that has been configured to provide this type of information.

[0044] In other embodiments, a new DCI format may be introduced to indicate to one or more UEs a transmit power update for certain types of downlink signals. Throughout this specification, the new DCI format may be referred to as "DCI format 2_Z". An exemplary DCI format 2_Z may be a cyclic CRC scrambled by the TP-PDSCH-RNTI. The TP-PDSCH-RNTI may be provided to the UE 110 using RRC signaling or any other suitable means. However, reference to DCI format 2_Z is provided for illustrative purposes only, and the 2_Z classification provided herein may be used as a placeholder. In actual deployment scenarios, any appropriate number or label may be assigned to the new DCI format.

[0045] As described above, in 405, one or more power offset value sets may be provided to UE 110. The power offset value for PDSCH transmit power may be expressed as Wherein the value of (D) is based on the trade-off between the signaling overhead of DCI and the required power scaling range for PDSCH transmission (e.g., the range of antenna port numbers for PDSCH transmission that can be dynamically disabled), and the set of power offset values ​​for PDSCH transmission can be expressed as

[0046] DCI format 2_Z may include one or more PDSCH power scaling indications (PDSCH-PSI) (e.g., PDSCH-PSI#1, PDSCH-PSI#2, ... PDSCH-PSI#G). In some embodiments, the PDSCH-PSI may include [log2N] bits and is used to indicate the power offset value previously provided to the UE 110 in 405.

[0047] At 420, UE 110 determines a PDSCH transmission based on the indicated power offset value. Can be used by UE 110 to determine actual PDSCH transmit power.

[0048] In some embodiments, the UE 110 may be configured by a higher layer with respect to the starting position of the PDSCH-PSI field. The method may allow different field sizes of the PDSCH-PSI field in the same DCI format 2_Z for different groups of UEs, so that the size of the DCI is minimized. For example, a first PDSCH-PSI field may be allocated to a first group of one or more UEs, and a second PDSCH-PSI field of the same DCI format 2_Z may be allocated to a second group of one or more UEs. The number of bits of DCI format 2_Z may be configured via RRC signaling or provided to UE 110 in any other appropriate manner. In some embodiments, the size of DCI format 2_Z may be equal to or less than the payload size of DCI format 1_0 monitored in the CSS of the same cell.

[0049] Figure 5 DCI format 2_Z according to various exemplary embodiments is shown. DCI format 2_Z can be used for multiple different groups of UEs. For example, the network can arrange one or more terminals into a group based on their respective SINR values. However, the exemplary embodiment does not need to arrange the UE into the (B) group based on SINR. The exemplary embodiment can use any appropriate indication of the coverage type experienced by the UE to arrange them into a group (e.g., good, moderate, poor, etc.) and / or any other appropriate factors can be considered. In this example, the first group of UEs can be assigned to PDSCH-PSI#1 for PDSCH transmit power notification. Other PDSCH-PSI fields in DCI format 2_Z can be used to notify different groups of UEs.

[0050] As mentioned above, instead of DCI format 2_Z, an exemplary embodiment may utilize an already defined DCI format to provide information to enable the UE to determine the PDSCH transmit power. According to some aspects, a new PDSCH-PSI field may be added to the existing DCI format 1_1 to dynamically indicate the transmit power of the PDSCH. Figure 6 An example of doing this is shown in DCI format 1_1.

[0051] Example

[0052] In a first embodiment, a method performed by a user equipment (UE) includes: receiving a set of power offset values ​​from a base station; receiving downlink control information (DCI), the DCI indicating a power offset value from the set of power offset values; and determining a transmit power of a physical downlink shared channel (PDSCH) to be sent by the base station based at least on the power offset value indicated by the DCI.

[0053] In a second embodiment, a method is described according to the first embodiment, wherein the power offset value set includes one or more power offset values, and the one or more power offset values ​​indicate the power offset between the PDSCH resource element and the non-zero power (NZP) channel state information (CSI)-reference signal (RS) resource element.

[0054] In a third embodiment, according to the method described in the first embodiment, the method also includes: receiving one or more radio resource control (RRC) signals, the one or more radio resource control (RRC) signals including a radio network temporary identifier (RNTI) for a PDSCH transmit power indication, wherein a cyclic redundancy check (CRC) bit of the DCI is scrambled by the RNTI.

[0055] In a fourth embodiment, according to the method of the first embodiment, the method further comprises: receiving an indication of a starting position of a power scaling indication (PSI) field of the DCI allocated to the UE, wherein the DCI is a group common DCI format for a group of UEs.

[0056] In a fifth embodiment, according to the method of the first embodiment, the method further comprises: receiving one or more radio resource control (RRC) signals, wherein the one or more radio resource control (RRC) signals include a parameter indicating the number of information bits of the DCI.

[0057] In a sixth embodiment, the method according to the first embodiment, wherein the DCI is a DCI format 1_1 including a physical downlink shared channel (PDSCH) power scaling indication (PSI) field.

[0058] In a seventh embodiment, the method according to the first embodiment is characterized in that the DCI comprises a plurality of fields, each field corresponding to a different group of UEs.

[0059] In an eighth embodiment, the method according to the seventh embodiment, wherein each group of UEs is arranged based on a signaling to interference plus noise ratio (SINR) parameter.

[0060] In a ninth embodiment, a processor is provided, wherein the processor is configured to execute any of the methods according to the first to eighth embodiments.

[0061] In a tenth embodiment, a user equipment (UE) comprises: a transceiver configured to communicate with a network; and a processor communicatively coupled to the transceiver and configured to perform any of the methods described in the first to eighth embodiments.

[0062] In an eleventh embodiment, a method performed by a base station, the method comprising: sending a power offset value set to a user equipment (UE); and sending downlink control information (DCI) to the UE, the DCI indicating a power offset value from the power offset value set, wherein the UE determines the transmit power of a physical downlink shared channel (PDSCH) to be sent by the base station based at least on the power offset value indicated by the DCI.

[0063] In a twelfth embodiment, a method is provided according to the eleventh embodiment, wherein the power offset value set includes one or more power offset values, and the one or more power offset values ​​indicate the power offset between the PDSCH resource element and the non-zero power (NZP) channel state information (CSI)-reference signal (RS) resource element.

[0064] In a thirteenth embodiment, according to the method described in the eleventh embodiment, the method also includes: sending one or more radio resource control (RRC) signals to the UE, the one or more radio resource control (RRC) signals including a radio network temporary identifier (RNTI) for a PDSCH transmit power indication, wherein a cyclic redundancy check (CRC) bit of the DCI is scrambled by the RNTI.

[0065] In a fourteenth embodiment, according to the method described in the eleventh embodiment, the method also includes: sending an indication to the UE, wherein the indication indicates the starting position of a power scaling indication (PSI) field of the DCI assigned to the UE, wherein the DCI is a group common DCI format for a group of UEs.

[0066] In a fifteenth embodiment, according to the method described in the eleventh embodiment, the method further includes: sending one or more radio resource control (RRC) signals to the UE, and the one or more radio resource control (RRC) signals include parameters indicating the number of information bits of the DCI.

[0067] In a sixteenth embodiment, the method according to the eleventh embodiment, wherein the DCI is a DCI format 1_1 including a physical downlink shared channel (PDSCH) power scaling indication (PSI) field.

[0068] In a seventeenth embodiment, according to the method of the eleventh embodiment, the DCI includes multiple fields, each field corresponding to a different group of UEs.

[0069] In an eighteenth embodiment, the method according to the seventeenth embodiment, wherein each group of UEs is arranged based on a signaling to interference plus noise ratio (SINR) parameter.

[0070] In a nineteenth embodiment, a processor is provided, wherein the processor is configured to execute any of the methods according to the eleventh to eighteenth embodiments.

[0071] In a twentieth embodiment, a base station comprises: a transceiver configured to communicate with a user equipment (UE); and a processor communicatively coupled to the transceiver and configured to perform any one of the methods described in accordance with the eleventh to eighteenth embodiments.

[0072] Those skilled in the art will appreciate that the exemplary embodiments described above may be implemented with any suitable software configuration or hardware configuration or combination thereof. Exemplary hardware platforms for implementing the exemplary embodiments may include, for example, Intel x86-based platforms with compatible operating systems, Windows OS, Mac platforms and MAC OS, mobile devices with operating systems such as iOS, Android, etc. The exemplary embodiments of the methods described above may be embodied as a program comprising lines of code stored on a non-transitory computer-readable storage medium, which, when compiled, may be executed on a processor or microprocessor.

[0073] Although this application describes various embodiments, each having different features in various combinations, those skilled in the art will understand that any feature of one embodiment may be combined with features of other embodiments in any manner that is not expressly negated or that is not functionally or logically inconsistent with the operation of the device or the prescribed function of the disclosed embodiment.

[0074] It is understood that the use of personally identifiable information should be subject to privacy policies and practices that are generally recognized to meet or exceed industry or government requirements for maintaining user privacy. Specifically, personally identifiable information data should be managed and processed to minimize the risk of unintentional or unauthorized access or use, and the nature of the authorized use should be clearly stated to users.

[0075] It will be apparent to those skilled in the art that various modifications may be made to the present disclosure without departing from the spirit or scope of the present disclosure. Therefore, it is intended that the present disclosure covers modifications and variations of the present disclosure as long as they fall within the scope of the appended claims and their equivalents.

Claims

1. A device of a user equipment (UE), the device comprising: A processing circuit, the processing circuit being configured to: decoding a set of power offset values ​​from a base station based on a signal received from the base station; decoding downlink control information (DCI) based on a signal received from the base station, the DCI indicating a power offset value from the set of power offset values; as well as A transmission power of a physical downlink shared channel (PDSCH) to be transmitted by the base station is determined based at least on the power offset value indicated by the DCI.

2. The apparatus according to claim 1, wherein the power offset value set comprises one or more power offset values, wherein the one or more power offset values ​​indicate a power offset between a PDSCH resource element and a non-zero power (NZP) channel state information (CSI)-reference signal (RS) resource element.

3. The apparatus of claim 1 , wherein the processing circuit is further configured to: One or more radio resource control (RRC) signals are decoded based on the signal received from the base station, the one or more radio resource control (RRC) signals including a radio network temporary identifier (RNTI) for a PDSCH transmit power indication, wherein cyclic redundancy check (CRC) bits of the DCI are scrambled by the RNTI.

4. The apparatus of claim 1 , wherein the processing circuit is further configured to: An indication of a starting position of a power scaling indication (PSI) field of the DCI allocated to the UE is decoded based on a signal received from the base station, wherein the DCI is a group common DCI format for a group of UEs.

5. The apparatus of claim 1 , wherein the processing circuit is further configured to: One or more radio resource control (RRC) signals are decoded based on the signal received from the base station, the one or more radio resource control (RRC) signals including a parameter indicating a number of information bits of the DCI.

6. The apparatus of claim 1, wherein the DCI is DCI format 1_1 including a physical downlink shared channel (PDSCH) power scaling indication (PSI) field.

7. The apparatus of claim 1, wherein the DCI comprises a plurality of fields, each field corresponding to a different group of UEs.

8. The apparatus of claim 7, wherein each group of UEs is arranged based on a signaling to interference plus noise ratio (SINR) parameter.

9. A processor, the processor being configured to: decoding a set of power offset values ​​from a base station based on a signal received from the base station; decoding downlink control information (DCI) based on a signal received from the base station, the DCI indicating a power offset value from the set of power offset values; as well as A transmission power of a physical downlink shared channel (PDSCH) to be transmitted by the base station is determined based at least on the power offset value indicated by the DCI.

10. The processor of claim 9, wherein the set of power offset values ​​comprises one or more power offset values ​​indicating a power offset between a PDSCH resource element and a non-zero power (NZP) channel state information (CSI)-reference signal (RS) resource element.

11. The processor of claim 9, wherein the processor is further configured to: One or more radio resource control (RRC) signals are decoded based on the signal received from the base station, the one or more radio resource control (RRC) signals including a radio network temporary identifier (RNTI) for a PDSCH transmit power indication, wherein cyclic redundancy check (CRC) bits of the DCI are scrambled by the RNTI.

12. The processor of claim 9, further configured to: An indication of a starting position of a power scaling indication (PSI) field of the DCI allocated to a user equipment (UE) is decoded based on a signal received from the base station, wherein the DCI is a group common DCI format for a group of UEs.

13. A base station device, the device comprising a processing circuit, the processing circuit being configured to: configuring transceiver circuitry to send a set of power offset values ​​to a user equipment (UE); and The transceiver circuit is configured to send downlink control information (DCI) to the UE, wherein the DCI indicates a power offset value from the power offset value set, wherein the UE determines a transmit power of a physical downlink shared channel (PDSCH) to be sent by the base station based at least on the power offset value indicated by the DCI.

14. The apparatus of claim 13, wherein the power offset value set comprises one or more power offset values ​​indicating a power offset between a PDSCH resource element and a non-zero power (NZP) channel state information (CSI)-reference signal (RS) resource element.

15. The apparatus of claim 13, wherein the processing circuit is further configured to: The transceiver circuit is configured to send one or more radio resource control (RRC) signals to the UE, the one or more radio resource control (RRC) signals including a radio network temporary identifier (RNTI) for a PDSCH transmit power indication, wherein cyclic redundancy check (CRC) bits of the DCI are scrambled by the RNTI.

16. The apparatus of claim 13, wherein the processing circuit is further configured to: Transceiver circuitry is configured to send an indication to the UE, the indication indicating a starting position of a power scaling indication (PSI) field of the DCI assigned to the UE, wherein the DCI is a group common DCI format for a group of UEs.

17. The apparatus of claim 13, wherein the processing circuit is further configured to: Transceiver circuitry is configured to send one or more radio resource control (RRC) signals to the UE, the one or more radio resource control (RRC) signals including a parameter indicating a number of information bits of the DCI.

18. The apparatus of claim 13, wherein the DCI is DCI format 1_1 including a physical downlink shared channel (PDSCH) power scaling indication (PSI) field.

19. The apparatus of claim 13, wherein the DCI comprises a plurality of fields, each field corresponding to a different group of UEs.

20. The apparatus of claim 19, wherein each group of UEs is arranged based on a signaling to interference plus noise ratio (SINR) parameter.

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