CN118250781A

CN118250781A - Channel state information reporting for multiple power offsets

Info

Publication number: CN118250781A
Application number: CN202311778981.8A
Authority: CN
Inventors: 胡亮; 菲利普·琼·马克·米歇尔·萨托里
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2022-12-22
Filing date: 2023-12-21
Publication date: 2024-06-25

Abstract

A system and method for enhanced Channel State Information (CSI) reporting is described herein. According to some embodiments, a User Equipment (UE) generates CSI based on each of a plurality of power offsets. The UE sends CSI measurements in CSI reports to a base station (gNB). The UE receives an indication of a channel state from the gNB corresponding to a particular power offset of the plurality of offsets. Based on the indication of the channel state, the UE receives a Physical Data Shared Channel (PDSCH) using one or more specific resources.

Description

Channel state information reporting for multiple power offsets

Cross Reference to Related Applications

The present application claims priority from U.S. provisional application No. 63/434,616, filed on 12 months 22 of 2022, the disclosure of which is incorporated herein by reference in its entirety as if fully set forth herein.

Technical Field

The present disclosure relates generally to wireless communication systems. More particularly, the subject matter disclosed herein relates to improvements to Channel State Information (CSI) reporting for dynamic power adjustment.

Background

The following are list of acronyms and their corresponding definitions used in this disclosure:

As the demand for data in cellular systems continues to increase, the power consumption of the network has steadily increased, with power consumption being dominant in the operating costs of the deployed network. In view of the increased network costs, the third generation partnership project (3 GPP) has begun to study how to reduce power consumption on the network side.

Disclosure of Invention

Currently, DL transmission power is typically fixed by the gNB for all UEs in a cell, regardless of their location in the cell. For a cell-centric UE, for example, if the selected MCS is highest, the SINR experienced by the UE is typically higher than the required SINR. For such scenarios, it is useful to reduce the gNB transmit power dedicated to UEs in good coverage in terms of energy consumption, since even lower SINR does not affect UE perceived performance. However, this reduction would mean that the transmission power of e.g. PDSCH would change dynamically depending on the UE channel quality.

One problem with dynamically changing PDSCH power level is that the UE is currently informed of the power offset between PDSCH and CSI-RS via RRC signaling. Thus, with the current standard specifications, as PDSCH transmission power changes, CSI-RS power must change accordingly to maintain the indicated power offset. However, CSI-RS may be shared/used by multiple UEs. Thus, all PDSCH powers for these users change simultaneously.

Changing all PDSCH power at the same time is not a good choice because UEs at the cell edge need higher power to maintain acceptable SINR. Therefore, it is necessary to have a mechanism that enables the gNB to dynamically change PDSCH power without affecting CSI-RS transmissions.

Modifying the power offset between PDSCH and CSI-RS has an effect on CSI feedback from the UE. This is because the UE reported CSI feedback is based on the channel it estimates from the CSI-RS and the configured power offset between the CSI-RS and PDSCH. The CSI feedback includes not only CQI, L1-RSRP, but also RI and PMI. Inaccurate power offset results in inaccurate CSI feedback. Note that even if the gNB knows the power offset change between CSI-RS and PDSCH, it is not possible to have the gNB make some compensation because the gNB does not know the channel information.

To overcome these problems, enhancements to CSI reporting/feedback are provided herein. The UE prepares CSI measurements for each of a plurality of power offsets that may be provided to the gNB. In some embodiments, CSI measurements are provided in a single CSI report. The report allows dynamic power adaptation on the RS or PDSCH. The reported options are as follows:

Option 1 enables dynamic power adjustment of SSB, CSI-RS and PDSCH. All transmission powers of SSB, RS and PDSCH are dynamically adapted. The power saving effect is high and the cell discovery (cell discovery) performance is low because SSB power is reduced (which is good for some scenarios, e.g. if the cell to be discovered is small). Further, enhancements of RRM measurements and CSI reports may be considered to indicate power variations of SSBs and CSI-RSs.

Option 2 enables dynamic power adjustment of CSI-RS and PDSCH. Since SSB power is not dynamically changed, cell discovery performance can be ensured. Enhancements of RRM measurements related to CSI-RS and CSI reporting may also be considered.

Option 3 enables dynamic power adjustment of PDSCH only. This option has minimal specification impact. The enhancement of CSI measurement and reporting may be regarded as that the actual transmission power of PDSCH is different from that of CSI-RS.

In an embodiment, a method includes: generating, at a User Equipment (UE), channel State Information (CSI) measurements based on each of a plurality of power offsets; transmitting the CSI measurements in a CSI report from the UE to a base station (gNB); receiving an indication of a channel state from the gNB corresponding to a particular power offset of the plurality of offsets; based on the indication of the channel state, a Physical Data Shared Channel (PDSCH) is received using one or more particular resources.

In some embodiments, the indication of the channel state is received in a message sent to a plurality of different UEs including the UE.

In some embodiments, the plurality of power offsets includes a power offset between a CSI reference signal (CSI-RS) and a PDSCH.

In some embodiments, the plurality of power offsets includes a power offset between a Synchronization Signal Block (SSB) and a CSI reference signal (CSI-RS). In some embodiments, where the plurality of power offsets includes a power offset between the SSB and the CSI-RS, the method further comprises: receiving data from the gNB indicating a change in offset between the SSB and the CSI-RS; and performing generating CSI measurements in response to receiving data from the gNB indicating a change in offset between the SSB and the CSI-RS.

In some embodiments, the method further comprises: receiving, at the UE, data from the gNB identifying the plurality of power offsets; and in response to receiving data identifying a plurality of power offsets, performing generating CSI measurements; wherein data identifying a plurality of power offsets is received via a first Downlink Control Information (DCI) message and an indication of a channel state corresponding to a particular power offset is received via a second DCI message. In some embodiments, the UE is preconfigured with a plurality of power offsets, and identifying the data for the plurality of power offsets includes selecting the plurality of power offsets.

In some embodiments, the method further comprises: determining that one or more pre-configured conditions have been met; and in response to determining that one or more preconfigured conditions have been met, performing generating CSI based on each of the plurality of power offsets. In some embodiments, the one or more pre-configuration conditions include a throughput based on an existing CSI-RS resource configuration with an existing power offset between CSI-RS and PDSCH being below a threshold. In some embodiments, the one or more pre-configured conditions include SINR below a threshold.

In some embodiments, the one or more particular resources for receiving PDSCH include frequency domain, time domain, or power domain physical resources scheduled by the gNB.

In an embodiment, a system includes: one or more processors; a memory storing instructions that, when executed by the one or more processors, cause performance of the following operations: generating, at a User Equipment (UE), channel State Information (CSI) measurements based on each of a plurality of power offsets; transmitting CSI measurements in a CSI report from the UE to a base station (gNB); receiving an indication of a channel state from the gNB corresponding to a particular power offset of the plurality of offsets; based on the indication of the channel state, a Physical Data Shared Channel (PDSCH) is received using one or more particular resources.

In some embodiments, the plurality of power offsets includes a power offset between a Synchronization Signal Block (SSB) and a CSI reference signal (CSI-RS). In some embodiments, where the plurality of power offsets includes a power offset between the SSB and the CSI-RS, the instructions, when executed by the one or more processors, further cause: receiving data from the gNB indicating a change in offset between the SSB and the CSI-RS; and performing generating CSI measurements in response to receiving data from the gNB indicating a change in offset between the SSB and the CSI-RS.

In some embodiments, the instructions, when executed by the one or more processors, further cause performance of: receiving, at the UE, data identifying a plurality of power offsets from the gNB; and in response to receiving data identifying a plurality of power offsets, performing generating CSI measurements; wherein data identifying a plurality of power offsets is received via a first Downlink Control Information (DCI) message and an indication of a channel state corresponding to a particular power offset is received via a second DCI message. In some embodiments, the UE is preconfigured with a plurality of power offsets, and identifying the data for the plurality of power offsets includes selecting the plurality of power offsets.

In some embodiments, the instructions, when executed by the one or more processors, further cause the following to be performed: determining that one or more pre-configured conditions have been met; and in response to determining that one or more preconfigured conditions have been met, performing generating CSI based on each of the plurality of power offsets. In some embodiments, the one or more pre-configuration conditions include a throughput based on an existing CSI-RS resource configuration with an existing power offset between CSI-RS and PDSCH being below a threshold. In some embodiments, the one or more pre-configured conditions include SINR below a threshold.

Drawings

In the following sections, aspects of the subject matter disclosed herein will be described with reference to exemplary embodiments shown in the drawings, in which:

Fig. 1 is a diagram illustrating a communication system according to an embodiment.

Fig. 2 depicts an example method of a CSI reporting/feedback process.

Fig. 3 depicts an example of a power adaptation scheme for reducing transmission power in accordance with some embodiments.

Fig. 4 depicts an example of a power adaptation scheme for improving signal quality, in accordance with some embodiments.

Fig. 5 depicts an example of a power adaptation scheme for reducing transmission power and improving signal quality, in accordance with some embodiments.

Fig. 6 is a block diagram of an electronic device in a network environment according to an embodiment.

Fig. 7 shows a system comprising a UE and a gNB in communication with each other.

Detailed Description

In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, it will be understood by those skilled in the art that the disclosed aspects may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to obscure the subject matter disclosed herein.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment disclosed herein. Thus, the appearances of the phrase "in one embodiment" or "in an embodiment" or "according to one embodiment" (or other phrases having similar meanings) in various places throughout this specification may not necessarily all refer to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In this regard, as used herein, the word "exemplary" means "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Furthermore, depending on the context discussed herein, singular terms may include the corresponding plural forms and plural terms may include the corresponding singular forms. Similarly, hyphenated terms (e.g., "two-dimensional", "pre-determined", "pixel-specific", etc.) may be occasionally used interchangeably with corresponding non-hyphenated versions (e.g., "two-dimensional", "pre-determined", "pixel-specific", etc.), and capitalized items (e.g., "Counter Clock", "Row Select", "PIXOUT", "pixel output", etc.) may be used interchangeably with corresponding non-capitalized versions (e.g., "Counter Clock", "Row Select", "pixout", etc.). Such occasional interchangeable uses should not be considered inconsistent with each other.

Furthermore, depending on the context discussed herein, singular terms may include the corresponding plural forms and plural terms may include the corresponding singular forms. It should also be noted that the various figures shown and discussed herein, including component views, are for illustrative purposes only and are not drawn to scale. For example, the dimensions of some of the elements may be exaggerated relative to other elements for clarity. Further, where considered appropriate, reference numerals have been repeated among the figures to indicate corresponding and/or analogous elements.

The terminology used herein is for the purpose of describing some example embodiments only and is not intended to limit the claimed subject matter. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It will be understood that when an element or layer is referred to as being "on," "connected to" or "coupled to" another element or layer, it can be directly on, connected or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As used herein, the terms "first," "second," and the like are used as labels for nouns preceding them, and do not imply any type of ordering (e.g., spatial, temporal, logical, etc.), unless so defined explicitly. Furthermore, the same reference numbers may be used throughout two or more drawings to refer to parts, components, blocks, circuits, units, or modules having the same or similar functionality. However, such use is merely for simplicity of illustration and ease of discussion; it is not intended that the construction or architectural details of such components or units be the same in all embodiments, or that such commonly referred parts/modules be the only way to implement some example embodiments disclosed herein.

Unless defined otherwise, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this subject matter belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the term "module" refers to any combination of software, firmware, and/or hardware configured to provide the functionality described herein in connection with the module. For example, software may be embodied as a software package, code, and/or instruction set or instructions, and the term "hardware" as used in any of the embodiments described herein may include, for example, components, hardwired circuitry, programmable circuitry, state machine circuitry, and/or firmware that stores instructions executed by the programmable circuitry, either alone or in any combination. Modules may be collectively or individually embodied as circuitry forming part of a larger system, such as, but not limited to, an Integrated Circuit (IC), a system-on-a-chip (SoC), a component, and the like.

Fig. 1 is a diagram illustrating a communication system according to an embodiment. In the architecture shown in fig. 1, the control path 102 enables transmission of control information over a network established between the gNB 104, the first UE 106, and the second UE 108. The data path 110 enables data (and some control information) to be transmitted on SL between the first UE 106 and the second UE 108. The control path 102 and the data path may be on the same frequency or may be on different frequencies.

Fig. 2 depicts an example method of a CSI reporting/feedback process. At step 202, the UE identifies a plurality of power offsets. In some embodiments, the plurality of power offsets includes different power offsets between PDSCH and CSI-RS. Additionally or alternatively, the power offset may include a power offset between the CSI-RS and the SSB.

In some embodiments, the plurality of power offsets is determined based on a request from the gNB for feedback identifying channel states of the plurality of power offsets. In some embodiments, the request from the gNB may include an indication of a change in SSB and/or CSI. In some embodiments, the request from the gNB may identify the plurality of power offsets by directly identifying a value and/or identifying one or more preconfigured power offsets for the UE. For example, the UE may be preconfigured with a set of values of powerControlOffset via RRC. These values may be configured as a ratio of PDSCH EPRE to NZP CSI-RS EPRE. The gNB may use MAC-CE and/or DCI to indicate to the UE which power offset is to be used for CSI measurement. When an indication is being sent to multiple UEs (such as in response to detecting a change in SSB and CSI-RS offsets affecting the multiple UEs), the indication may be sent by the gNB using group common or cell common signaling.

Examples of CSI-RS resource dynamic power adjustment for PDSCH are provided below:

examples of CSI-RS resources for dynamic power adjustment of PDSCH and CSI-RS are provided below:

For PDCCH, when the UE monitors PDCCH of DCI format 1_0 having CRC scrambled by SI-RNTI, P-RNTI or RA-RNTI, if the UE has not been provided with a dedicated higher layer parameter, the UE may assume PDCCH DMRS EPRE to SSS EPRE ratio within-8 dB and 8 dB. For link recovery, the ratio of PDCCH EPRE to NZP CSI-RS EPRE can be assumed to be 0dB. For other cases, the EPREs of PDCCH and PDCCH DMRS may depend on the number of scheduled PRBs on the operating BW based on the gNB implementation.

In some embodiments, the UE determines a plurality of power offsets in response to determining that one or more pre-configuration conditions are met. For example, the UE may determine the plurality of power offsets in response to determining the SINR and/or based on throughput of an existing CSI-RS resource configuration with an existing power offset between CSI-RS and PDSCH being below a first threshold and/or below a second threshold. The first threshold may be configured such that the gNB may increase the power of PDSCH transmissions and UE throughput in response to the throughput or SINR being too low. The second threshold may be configured such that the gNB may reduce power of PDSCH transmissions in response to throughput and/or SINR being higher than desired in order to save energy.

In step 204, the ue generates CSI measurements for a plurality of power offsets. For example, the UE may generate RSRP, RSRQ, SINR, PMI, CQI or a measurement of any of the RI for each of the plurality of power offsets. The CSI measurements sent to the gNB may include any combination of RSRP, RSRQ, SINR, PMI, CQI or RI, and in some cases, the UE may generate measurements of any of the above in addition to the CSI measurements sent to the gNB.

In step 206, the ue sends CSI measurements to the gNB in CSI reports. In some embodiments, the UE transmits CSI measurements in a single CSI report, where each CSI result corresponds to one of the power offsets. In some embodiments, the CSI report includes RI, PMI, and CQI for each power offset, allowing the gNB to decide which power offset should be activated. In other embodiments, the UE reports the measured RSRP, RSRQ, and/or SINR on the 1 or 2 port CSI-RS resources for each power offset. Additionally or alternatively, the UE may report a measured product of the rank indicator, the number of bits per modulation symbol, and the coding rate.

In step 208, the gNB selects a power offset. For example, the gNB may select a power offset, e.g., a maximum SINR, that achieves a particular preconfigured CSI measurement. In embodiments that use a threshold to trigger the UE to measure CSI for multiple power offsets, the gNB may select a power offset such that the threshold is no longer exceeded. In some embodiments, selecting the power offset includes selecting a channel state corresponding to the power offset. For example, if the UE does not specify a power offset but sends measurement packets and the gNB selects one of the measurement packets, selecting the packet includes selecting the power offset corresponding to the measurement.

In step 210, the gnb sends an indication of the selected power offset and/or channel state. The gNB may send the selection directly to the UE and/or to multiple UEs through group common or cell common signaling. If group common signaling is used, the group may be defined using the existing RRC procedure of DCI format 2_X.

In step 212, the ue uses resources with a selected power offset and/or channel state. For example, the UE may use the selected power offset to select resources for receiving future transmissions (such as PDSCH transmissions). The resources may include frequency domain, time domain, or power domain physical resources scheduled by the gNB.

Fig. 3 depicts an example of a power adaptation scheme for reducing transmission power in accordance with some embodiments. In step 302, the ue obtains a set of possible hypothesized power offset values between CSI-RS and PDSCH of one CSI-RS resource. The UE may obtain the set of hypothetical power offset values from a message from the gNB or based on a pre-configuration.

In step 304, the UE initially selects or is allocated a power offset value between CSI-RS and PDSCH of a CSI-RS resource for which the UE measures CSI and reports the CSI back to the gNB as part of the CSI report. In step 306, the ue measures the signal quality or estimated throughput and the existing power offset of the existing link. In step 308, the ue determines whether the signal quality or throughput is greater than a threshold. If the signal quality or throughput is greater than the threshold, the ue starts measuring multiple CSI-RS resource configurations with different hypothesized power offsets between CSI-RS and PDSCH and reports them to the gNB in order for the gNB to reduce transmit power in step 310. The process may then return to step 306 as the UE continues to monitor signal quality or estimated throughput.

If the signal quality or throughput is not greater than the threshold, the UE remains using the current power offset value and the legacy CSI framework at step 312. The process may then return to step 306 as the UE continues to monitor signal quality or estimated throughput.

Fig. 4 depicts an example of a power adaptation scheme for improving signal quality, in accordance with some embodiments. In step 402, the ue obtains a set of possible hypothesized power offset values between CSI-RS and PDSCH of one CSI-RS resource. The UE may obtain the set of hypothetical power offset values from a message from the gNB or based on a pre-configuration.

In step 404, the UE initially selects or is allocated a power offset value between CSI-RS and PDSCH of a CSI-RS resource for which the UE measures CSI and reports the CSI back to the gNB as part of a CSI report. In step 406, the ue measures the signal quality or estimated throughput and the existing power offset of the existing link. In step 408, the ue determines whether the signal quality or throughput is below a threshold. If the signal quality or throughput is below the threshold, the ue starts measuring multiple CSI-RS resource configurations with different hypothesized power offsets between CSI-RS and PDSCH and reports them to the gNB in step 410, so that the gNB increases the transmit power to improve the signal quality of future transmissions. The process may then return to step 406 as the UE continues to monitor signal quality or estimated throughput.

If the signal quality or throughput is not below the threshold, the UE remains using the current power offset value and the legacy CSI framework at step 412. The process may then return to step 406 as the UE continues to monitor signal quality or estimated throughput.

Fig. 5 depicts an example of a power adaptation scheme for reducing transmission power and improving signal quality, in accordance with some embodiments. In step 502, the ue obtains a set of possible hypothesized power offset values between CSI-RS and PDSCH of one CSI-RS resource. The UE may obtain the set of hypothetical power offset values from a message from the gNB or based on a pre-configuration.

In step 504, the UE initially selects or is allocated a power offset value between CSI-RS and PDSCH of a CSI-RS resource for which the UE measures CSI and reports the CSI back to the gNB as part of a CSI report. In step 506, the ue measures the signal quality or estimated throughput and the existing power offset of the existing link. In step 508, the ue determines whether the signal quality or throughput is greater than a first threshold. If the signal quality or throughput is greater than the first threshold, the ue starts measuring multiple CSI-RS resource configurations with different hypothesized power offsets between CSI-RS and PDSCH and reports them to the gNB in order for the gNB to reduce transmit power in step 510. The process may then return to step 506 as the UE continues to monitor signal quality or estimated throughput.

If the signal quality or throughput is not greater than the first threshold, the ue determines whether the signal quality or throughput is below a second threshold in step 512. If the signal quality or throughput is below the second threshold, the UE starts measuring multiple CSI-RS resource configurations with different hypothesized power offsets between CSI-RS and PDSCH and reports them to the gNB, at step 514, so that the gNB increases the transmit power to improve the signal quality of future transmissions. The process may then return to step 506 as the UE continues to monitor signal quality or estimated throughput.

Although step 512 is depicted as occurring after step 508, the order in which the UE makes the above-described determinations is interchangeable, and other embodiments may include the UE first determining whether the signal quality or throughput is below a second threshold, or determining whether the signal quality or throughput is below a second threshold while the UE determines whether the signal quality or throughput is greater than a first threshold.

If the signal quality or throughput is neither above the first threshold nor below the second threshold, then at step 516 the UE remains using the current power offset value and the legacy CSI framework. The process may then return to step 506 as the UE continues to monitor signal quality or estimated throughput.

Fig. 6 is a block diagram of an electronic device in a network environment 600 according to an embodiment that can be used to perform any of the methods described herein. For example, the electronic device 601 may be an example of the UE 106 or 705.

Referring to fig. 6, an electronic device 601 in a network environment 600 may communicate with an electronic device 602 via a first network 698 (e.g., a short-range wireless communication network) or with an electronic device 604 or server 608 via a second network 699 (e.g., a long-range wireless communication network). Electronic device 601 may communicate with electronic device 604 via server 608. The electronic device 601 may include a processor 620, a memory 630, an input device 650, a sound output device 655, a display device 660, an audio module 670, a sensor module 676, an interface 677, a haptic module 679, a camera module 680, a power management module 688, a battery 689, a communication module 690, a Subscriber Identity Module (SIM) card 696, or an antenna module 697. In one embodiment, at least one of the components (e.g., display device 660 or camera module 680) may be omitted from electronic device 601, or one or more other components may be added to electronic device 601. Some components may be implemented as a single Integrated Circuit (IC). For example, the sensor module 676 (e.g., a fingerprint sensor, iris sensor, or illuminance sensor) may be embedded in the display device 660 (e.g., a display).

The processor 620 may execute software (e.g., program 640) to control at least one other component (e.g., hardware or software component) of the electronic device 601 coupled to the processor 620 and may perform various data processing or calculations.

As at least part of the data processing or calculation, the processor 620 may load commands or data received from another component (e.g., the sensor module 676 or the communication module 690) into the volatile memory 632, process the commands or data stored in the volatile memory 632, and store the resulting data in the nonvolatile memory 634. The processor 620 may include a main processor 621 (e.g., a Central Processing Unit (CPU) or an Application Processor (AP)) and an auxiliary processor 623 (e.g., a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a sensor hub processor (sensor hub processor), or a Communication Processor (CP)), the auxiliary processor 623 being operable independently of the main processor 621 or in combination with the main processor 621. Additionally or alternatively, the auxiliary processor 623 may be adapted to consume less power than the main processor 621, or to perform certain functions. The auxiliary processor 623 may be implemented separately from the main processor 621 or as part of the main processor 621.

The auxiliary processor 623 may control at least some of the functions or states associated with at least one of the components of the electronic device 601 (e.g., the display device 660, the sensor module 676, or the communication module 690) in place of the main processor 621 when the main processor 621 is in an inactive (e.g., sleep) state, or with the main processor 621 when the main processor 621 is in an active state (e.g., executing an application). The auxiliary processor 623 (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., a camera module 680 or a communication module 690) functionally associated with the auxiliary processor 623.

The memory 630 may store various data used by at least one component of the electronic device 601 (e.g., the processor 620 or the sensor module 676). The various data may include, for example, input data or output data for the software (e.g., program 640) and commands associated therewith. Memory 630 may include volatile memory 632 or nonvolatile memory 634. The non-volatile memory 634 may include an internal memory 636 and/or an external memory 638.

Programs 640 may be stored as software in memory 630 and may include, for example, an Operating System (OS) 642, middleware 644, or applications 646.

The input device 650 may receive commands or data from outside the electronic device 601 (e.g., a user) to be used by another component of the electronic device 601 (e.g., the processor 620). The input device 650 may include, for example, a microphone, a mouse, or a keyboard.

The sound output device 655 may output sound signals to the outside of the electronic device 601. The sound output device 655 may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as playing multimedia or recording, and the receiver may be used to receive incoming calls. The receiver may be implemented separately from the speaker or as part of the speaker.

The display device 660 may visually provide information to an exterior (e.g., a user) of the electronic device 601. The display device 660 may include, for example, a display, a hologram device, or a projector, and a control circuit for controlling a corresponding one of the display, the hologram device, and the projector. The display device 660 may include touch circuitry adapted to detect touches or sensor circuitry (e.g., pressure sensors) adapted to measure the strength of forces caused by touches.

The audio module 670 may convert sound into electrical signals and vice versa. The audio module 670 may obtain sound via the input device 650, or output sound via the sound output device 655 or headphones of the external electronic device 602 that is directly (e.g., wired) or wirelessly coupled to the electronic device 601.

The sensor module 676 may detect an operational state (e.g., power or temperature) of the electronic device 601 or an environmental state (e.g., a state of a user) external to the electronic device 601 and then generate an electrical signal or data value corresponding to the detected state. The sensor module 676 may include, for example, a gesture sensor, a gyroscope sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an Infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 677 may support one or more specified protocols for the electronic device 601 that is directly (e.g., wired) or wirelessly coupled with the external electronic device 602. The interface 677 may include, for example, a High Definition Multimedia Interface (HDMI), a Universal Serial Bus (USB) interface, a Secure Digital (SD) card interface, or an audio interface.

The connection terminal 678 may include a connector via which the electronic device 601 may be physically connected with the external electronic device 602. The connection terminal 678 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., an earphone connector).

The haptic module 679 may convert the electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that may be recognized by a user via a tactile or kinesthetic sensation. The haptic module 679 may include, for example, a motor, a piezoelectric element, or an electro-stimulator.

The camera module 680 may capture still images or moving images. The camera module 680 may include one or more lenses, an image sensor, an image signal processor, or a flash. The power management module 688 may manage power supplied to the electronic device 601. The power management module 688 may be implemented, for example, as at least a portion of a Power Management Integrated Circuit (PMIC).

The battery 689 may provide power to at least one component of the electronic device 601. The battery 689 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

The communication module 690 may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 601 and an external electronic device (e.g., the electronic device 602, the electronic device 604, or the server 608) and performing communication via the established communication channel. The communication module 690 may include one or more communication processors that are operable independently of the processor 620 (e.g., an AP) and support direct (e.g., wired) or wireless communication. The communication module 690 may include a wireless communication module 692 (e.g., a cellular communication module, a short-range wireless communication module, or a Global Navigation Satellite System (GNSS) communication module) or a wired communication module 694 (e.g., a Local Area Network (LAN) communication module or a Power Line Communication (PLC) module). The wireless communication module 692 may identify and authenticate the electronic device 601 in a communication network such as the first network 698 or the second network 699 using subscriber information (e.g., international Mobile Subscriber Identity (IMSI)) stored in the subscriber identity module 696, such as the electronic device 601 in the first network 698 or the second network 699.

The antenna module 697 may transmit signals or power to or receive signals or power from outside of the electronic device 601 (e.g., an external electronic device). The antenna module 697 may include one or more antennas and, as such, at least one antenna suitable for a communication scheme used in a communication network, such as the first network 698 or the second network 699, may be selected, for example, by the communication module 690 (e.g., the wireless communication module 692). Signals or power may then be transmitted or received between the communication module 690 and an external electronic device via the selected at least one antenna.

Commands or data may be sent or received between the electronic device 601 and the external electronic device 604 via a server 608 coupled to the second network 699. Each of the electronic devices 602 and 604 may be the same type or a different type of device than the electronic device 601. All or some of the operations to be performed at the electronic device 601 may be performed at one or more of the external electronic devices 602, 604, or 608. For example, if the electronic device 601 should perform a function or service automatically or in response to a request from a user or another device, the electronic device 601 may request one or more external electronic devices to perform at least a portion of the function or service instead of or in addition to performing the function or service. The external electronic device or devices receiving the request may perform at least a portion of the requested function or service, or additional functions or additional services related to the request, and communicate the result of the performance to the electronic device 601. The electronic device 601 may provide the results as at least a portion of a reply to the request with or without further processing of the results. To this end, for example, cloud computing, distributed computing, or client-server computing techniques may be used.

Fig. 7 shows a system including a UE 705 and a gNB 710 in communication with each other. The UE may include a radio 715 and processing circuitry (or means for processing) 720, which may perform various methods disclosed herein, such as the method shown in fig. 1. For example, processing circuitry 720 may receive a transmission from network node (gNB) 710 via radio 715, and processing circuitry 720 may send a signal to gNB 710 via radio 715.

Embodiments of the subject matter and the operations described in this specification can be implemented in digital electronic circuitry, or in computer software, firmware, or hardware, including the structures disclosed in this specification and their structural equivalents, or in combinations of one or more of them. Embodiments of the subject matter described in this specification can be implemented as one or more computer programs, i.e., one or more modules of computer program instructions, encoded on a computer storage medium for execution by, or to control the operation of, data processing apparatus. Alternatively or additionally, the program instructions may be encoded on a manually generated propagated signal, e.g., a machine-generated electrical, optical, or electromagnetic signal, that is generated to encode information for transmission to suitable receiver apparatus for execution by data processing apparatus. The computer storage medium may be or be included in a computer readable storage device, a computer readable storage substrate, a random or serial access memory array or device, or a combination thereof. Furthermore, while the computer storage medium is not a propagated signal, the computer storage medium may be a source or destination of computer program instructions encoded in an artificially generated propagated signal. Computer storage media may also be or be included in one or more separate physical components or media (e.g., multiple CDs, disks, or other storage devices). In addition, the operations described in this specification may be implemented as operations performed by a data processing apparatus on data stored on one or more computer readable storage devices or received from other sources.

Although this description may contain many specific implementation details, the implementation details should not be construed as limiting the scope of any claimed subject matter, but rather as descriptions of features specific to particular embodiments. Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination. Furthermore, although features may be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a subcombination or variation of a subcombination.

Similarly, although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In some cases, multitasking and parallel processing may be advantageous. Moreover, the separation of various system components in the embodiments described above should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.

Thus, particular embodiments of the subject matter have been described herein. Other embodiments are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. Additionally, the processes depicted in the accompanying drawings do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may be advantageous.

As will be recognized by those skilled in the art, the innovative concepts described herein can be modified and varied over a wide range of applications. Accordingly, the scope of the claimed subject matter should not be limited to any of the specific exemplary teachings discussed above, but is instead defined by the following claims.

Claims

1. A method, comprising:

generating, at a User Equipment (UE), channel State Information (CSI) measurements based on each of a plurality of power offsets;

transmitting the CSI measurements in a CSI report from the UE to a base station (gNB);

receiving an indication of a channel state from the gNB corresponding to a particular power offset of the plurality of power offsets; and

Based on the indication of channel state, a Physical Data Shared Channel (PDSCH) is received using one or more particular resources.

2. The method of claim 1, wherein the indication of channel state is received in a message sent to a plurality of different UEs including the UE.

3. The method of claim 1, wherein the plurality of power offsets comprises a power offset between a CSI reference signal (CSI-RS) and a PDSCH.

4. The method of claim 1, wherein the plurality of power offsets comprises a power offset between a Synchronization Signal Block (SSB) and a CSI reference signal (CSI-RS).

5. The method of claim 4, further comprising:

Receiving data from the gNB indicating a change in offset between the SSB and the CSI-RS; and

Generating CSI measurements is performed in response to receiving data from the gNB indicating a change in offset between the SSB and the CSI-RS.

6. The method of claim 1, further comprising:

Receiving, at the UE, data identifying the plurality of power offsets from the gNB; and

In response to receiving data identifying the plurality of power offsets, performing the generating CSI measurement;

Wherein the data identifying the plurality of power offsets is received via a first Downlink Control Information (DCI) message and the indication of the channel state corresponding to the particular power offset is received via a second DCI message.

7. The method of claim 6, wherein the UE is preconfigured with the plurality of power offsets, and identifying data for the plurality of power offsets comprises selecting the plurality of power offsets.

8. The method of claim 1, further comprising:

Determining that one or more pre-configured conditions have been met; and

In response to determining that the one or more preconfigured conditions have been met, the generating CSI is performed based on each of the plurality of power offsets.

9. The method of claim 8, wherein the one or more pre-configuration conditions comprise a throughput based on an existing CSI-RS resource configuration with an existing power offset between CSI-RS and PDSCH being below a threshold.

10. The method of claim 8, wherein the one or more preconfigured conditions include SINR below a threshold.

11. The method of claim 1, wherein the one or more particular resources for receiving the PDSCH comprise frequency domain, time domain, or power domain physical resources scheduled by the gNB.

12. A system, comprising:

one or more processors;

A memory storing instructions that, when executed by the one or more processors, cause performance of the following operations:

13. The system of claim 12, wherein the indication of channel state is received in a message sent to a plurality of different UEs including the UE.

14. The system of claim 12, wherein the plurality of power offsets comprises one or more of: a power offset between a CSI reference signal (CSI-RS) and a PDSCH, or a power offset between a Synchronization Signal Block (SSB) and a CSI reference signal (CSI-RS).

15. The system of claim 12, wherein the plurality of power offsets comprises a power offset between a Synchronization Signal Block (SSB) and a CSI reference signal (CSI-RS), and wherein the instructions, when executed by the one or more processors, further cause:

16. The system of claim 12, wherein the instructions, when executed by the one or more processors, further cause the following to be performed:

17. The system of claim 16, wherein the UE is preconfigured with the plurality of power offsets, and the data identifying the plurality of power offsets comprises selecting the plurality of power offsets.

18. The system of claim 12, wherein the instructions, when executed by the one or more processors, further cause the following to be performed:

Determining that one or more pre-configured conditions have been met; and

19. The system of claim 18, wherein the one or more pre-configured conditions include one or more of: throughput based on existing CSI-RS resource configurations with existing power offsets between CSI-RS and PDSCH is below a threshold, or SINR is below a threshold.

20. The system of claim 12, wherein the one or more particular resources for receiving the PDSCH comprise frequency domain, time domain, or power domain physical resources scheduled by the gNB.