Hybrid downlink reference signal and feedback information reporting
By generating a hybrid beam report in a wireless communication system, including measurement information and feedback information of multiple reference signals, the problem of large uplink signaling overhead in the prior art is solved, and more efficient beam management and communication performance is achieved.
Patent Information
- Application Number
- CN202380061888.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-09-07
- Filing Date
- 2023-09-06
- Publication Date
- 2025-04-04
AI Technical Summary
When performing beam management, existing wireless communication systems need to frequently send L1 measurement reports, resulting in large uplink signaling overhead and affecting system efficiency.
A system and technology for generating a hybrid beam report is proposed, which reduces signaling overhead by containing mixed beam information and feedback information of multiple reference signals through a single measurement report. The specific method includes using a plurality of reference signals (such as DMRS, CSI-RS, SSB) to perform measurements and sending a mixed measurement report on the uplink channel, including measurement information and HARQ feedback information associated with these reference signals.
By reducing uplink signaling overhead and improving beam management efficiency, the system can manage beams more effectively and improve the performance and efficiency of wireless communications.
Smart Images

Figure CN119769040A_ABST
Abstract
Description
Technical Field
[0001] Aspects of the present disclosure relate generally to wireless communications. In some implementations, examples for hybrid reference signal beam management are described. Background Art
[0002] Wireless communication systems are deployed to provide a variety of telecommunication services including telephony, video, data, messaging, broadcasts, and the like. Wireless communication systems have evolved over several generations, including first generation analog wireless telephone service (1G), second generation (2G) digital wireless telephone service (including transitional 2.5G networks), third generation (3G) high-speed data wireless service with Internet capabilities, fourth generation (4G) services (e.g., Long Term Evolution (LTE), WiMax), and fifth generation (5G) services (e.g., New Radio (NR)). There are many different types of wireless communication systems in use today, including cellular systems and personal communications service (PCS) systems. Examples of known cellular systems include the cellular analog Advanced Mobile Phone System (AMPS), and digital cellular systems based on code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), Global System for Mobile Communications (GSM), and the like. Summary of the invention
[0003] The following presents a simplified summary of the invention related to one or more aspects disclosed herein. Therefore, the following summary of the invention should neither be considered as an exhaustive overview related to all conceived aspects, nor should it be considered to identify key or decisive elements related to all conceived aspects or to delineate the scope associated with any particular aspect. Therefore, the sole purpose of the following summary of the invention is to present certain concepts related to one or more aspects of the mechanisms disclosed herein in a brief form before the detailed embodiments presented below.
[0004] Systems, methods, devices, and computer-readable media for performing wireless communications are disclosed. According to at least one example, a first network node for wireless communications is provided. The first network node includes at least one memory and at least one processor coupled to the at least one memory. The at least one processor is configured to: receive a reference signal; and cause uplink information to be sent to a second network node, wherein the uplink information indicates: first measurement information associated with the reference signal; and feedback information associated with the sending. In an illustrative example, the first network node may include a user equipment (UE), and the second network node may include a base station (e.g., a gNodeB (gNB) or other base station, or a portion of the base station, such as a central unit (CU), a distributed unit (DU), a radio unit (RU), a near real-time (near-RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC of a base station with a decomposed architecture).
[0005] In another example, a method for wireless communication at a first network node is provided. The method includes: receiving a reference signal; and sending uplink information to a second network node, wherein the uplink information indicates: first measurement information associated with the reference signal; and feedback information associated with the sending.
[0006] In another example, a non-transitory computer-readable medium is provided, having instructions thereon that, when executed by one or more processors, cause the one or more processors to: receive a reference signal; and cause uplink information to be sent to a second network node, wherein the uplink information indicates: first measurement information associated with the reference signal; and feedback information associated with the sending.
[0007] In another example, an apparatus for wireless communication is provided. The apparatus includes: a component for receiving a reference signal; and a component for sending uplink information to a second network node, wherein the uplink information indicates: first measurement information associated with the reference signal; and feedback information associated with the sending.
[0008] According to at least one other example, a first network node for wireless communication is provided. The first network node includes at least one memory and at least one processor coupled to the at least one memory. The at least one processor is configured to: receive multiple reference signals, wherein the multiple reference signals include a first reference signal of a first type and a second reference signal of a second type different from the first type; and cause uplink information to be sent to a second network node, wherein the uplink information indicates: first measurement information associated with the first reference signal of the first type; second measurement information associated with the second reference signal of the second type; and feedback information associated with the sending. In an illustrative example, the first network node may include a user equipment (UE), and the second network node may include a base station (e.g., a gNB or other base station, or a portion of the base station, such as a CU, DU, RU, near-RTRIC, or non-RT RIC of a base station with a decomposed architecture).
[0009] In another example, a method for wireless communication at a first network node is provided. The method includes: receiving a plurality of reference signals, wherein the plurality of reference signals include a first reference signal of a first type and a second reference signal of a second type different from the first type; and sending uplink information to a second network node, wherein the uplink information indicates: first measurement information associated with the first reference signal of the first type; second measurement information associated with the second reference signal of the second type; and feedback information associated with sending.
[0010] In another example, a non-transitory computer-readable medium is provided, having instructions thereon, which, when executed by one or more processors, cause the one or more processors to: receive a plurality of reference signals, wherein the plurality of reference signals include a first reference signal of a first type and a second reference signal of a second type different from the first type; and cause uplink information to be sent to a second network node, wherein the uplink information indicates: first measurement information associated with the first reference signal of the first type; second measurement information associated with the second reference signal of the second type; and feedback information associated with the sending.
[0011] In another example, an apparatus for wireless communication is provided. The apparatus includes: a component for receiving a plurality of reference signals, wherein the plurality of reference signals include a first reference signal of a first type and a second reference signal of a second type different from the first type; and a component for sending uplink information to a second network node, wherein the uplink information indicates: first measurement information associated with the first reference signal of the first type; second measurement information associated with the second reference signal of the second type; and feedback information associated with sending.
[0012] According to at least one other example, a first network node for wireless communication is provided. The first network node includes at least one memory and at least one processor coupled to the at least one memory. The at least one processor is configured to: cause a reference signal to be sent to a second network node; and receive uplink information from the second network node, wherein the uplink information indicates: first measurement information associated with the reference signal; and feedback information associated with the sending. In an illustrative example, the first network node may include a base station (e.g., a gNB or other base station, or a portion of the base station, such as a CU, DU, RU, near-RT RIC, or non-RT RIC of a base station with a decomposed architecture), and the second network node may include a user equipment (UE).
[0013] In another example, a method for wireless communication at a first network node is provided. The method includes: sending a reference signal to a second network node; and receiving uplink information from the second network node, wherein the uplink information indicates: first measurement information associated with the reference signal; and feedback information associated with the sending.
[0014] In another example, a non-transitory computer-readable medium is provided, having instructions thereon that, when executed by one or more processors, cause the one or more processors to: cause a reference signal to be sent to a second network node; and receive uplink information from the second network node, wherein the uplink information indicates: first measurement information associated with the reference signal; and feedback information associated with the sending.
[0015] In another example, an apparatus for wireless communication is provided. The apparatus includes: a component for sending a reference signal to a second network node; and a component for receiving uplink information from the second network node, wherein the uplink information indicates: first measurement information associated with the reference signal; and feedback information associated with the sending.
[0016] According to at least one other example, a first network node for wireless communication is provided. The first network node includes at least one memory and at least one processor coupled to the at least one memory. The at least one processor is configured to: cause multiple reference signals to be sent to a second network node, wherein the multiple reference signals include a first reference signal of a first type and a second reference signal of a second type different from the first type; and receive uplink information from the second network node, wherein the uplink information indicates: first measurement information associated with the first reference signal of the first type; second measurement information associated with the second reference signal of the second type; and feedback information associated with the transmission. In an illustrative example, the first network node may include a base station (e.g., a gNB or other base station, or a portion of the base station, such as a CU, DU, RU, near-RT RIC, or non-RT RIC of a base station with a decomposed architecture), and the second network node may include a user equipment (UE).
[0017] In another example, a method for wireless communication at a first network node is provided. The method includes: sending a plurality of reference signals to a second network node, wherein the plurality of reference signals include a first reference signal of a first type and a second reference signal of a second type different from the first type; and receiving uplink information from the second network node, wherein the uplink information indicates: first measurement information associated with the first reference signal of the first type; second measurement information associated with the second reference signal of the second type; and feedback information associated with the sending.
[0018] In another example, a non-transitory computer-readable medium is provided, having instructions thereon, which, when executed by one or more processors, cause the one or more processors to: cause a plurality of reference signals to be sent to a second network node, wherein the plurality of reference signals include a first reference signal of a first type and a second reference signal of a second type different from the first type; and receive uplink information from the second network node, wherein the uplink information indicates: first measurement information associated with the first reference signal of the first type; second measurement information associated with the second reference signal of the second type; and feedback information associated with the sending.
[0019] In another example, an apparatus for wireless communication is provided. The apparatus includes: a component for sending a plurality of reference signals to a second network node, wherein the plurality of reference signals include a first reference signal of a first type and a second reference signal of a second type different from the first type; and a component for receiving uplink information from the second network node, wherein the uplink information indicates: first measurement information associated with the first reference signal of the first type; second measurement information associated with the second reference signal of the second type; and feedback information associated with the sending.
[0020] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer readable media, user equipment, base stations, wireless communication devices and / or processing systems as fully described herein with reference to and as illustrated by the accompanying drawings and description.
[0021] The features and technical advantages of examples according to the present disclosure have been outlined quite extensively above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description and not as a definition of limitations to the claims.
[0022] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers) for analog and digital purposes. The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements and / or end-user devices of various sizes, shapes and configurations.
[0023] Other purposes and advantages associated with the various aspects disclosed herein will be apparent to those skilled in the art based on the drawings and detailed description. This summary is not intended to identify the key or essential features of the claimed subject matter, nor is it intended to be used in isolation to determine the scope of the claimed subject matter. This subject matter should be understood with reference to appropriate portions of the entire specification of this patent, any or all drawings, and each claim.
[0024] The foregoing and other features and aspects will become more apparent upon reference to the following description, claims and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The accompanying drawings are presented to aid in describing various aspects of the present disclosure and are provided solely for illustration and not limitation of the aspects.
[0026] Figure 1 is a block diagram illustrating an example of a wireless communication network according to some examples;
[0027] Figure 2 is a diagram illustrating a design of a base station and a user equipment (UE) device according to some examples, which enables sending and processing of signals exchanged between the UE and the base station;
[0028] Figure 3 is a diagram illustrating an example of a decomposed base station according to some examples;
[0029] Figure 4is a block diagram illustrating components of a user equipment (UE) according to some examples;
[0030] Figure 5 is a diagram illustrating examples of physical channels and reference signals in a wireless network according to some examples;
[0031] Figure 6 is a diagram illustrating an example of aperiodic configuration for a beam management procedure according to some examples;
[0032] Figure 7 is a diagram illustrating an example of a time window based periodic configuration for a beam management procedure according to some examples;
[0033] Figure 8 is a diagram illustrating an example of a configuration for a hybrid reference signal beam management procedure according to some examples;
[0034] Fig. 9 is a diagram illustrating an example of signaling associated with hybrid reference signal measurement reporting according to some examples;
[0035] Fig.10 is a diagram illustrating an example of a hybrid reference signal measurement report including measurement information and feedback information according to some examples;
[0036] Fig.11 is a diagram illustrating an example of a hybrid reference signal measurement report including measurement information and implicitly signaled feedback information according to some examples;
[0037] Fig.12 is a diagram illustrating an example of a hybrid reference signal measurement report including measurement information and feedback information according to some examples;
[0038] Fig.13 is a flow chart illustrating an example of a process for conducting wireless communications according to some examples;
[0039] Fig.14 is a flow chart illustrating another example of a process for conducting wireless communications according to some examples; and
[0040] Fig.15 is a block diagram illustrating an example of a computing system according to some examples. DETAILED DESCRIPTION
[0041] For illustrative purposes, some aspects of the present disclosure are provided below. Without departing from the scope of the present disclosure, alternative aspects can be designed. In addition, well-known elements of the present disclosure will not be described in detail or will be omitted, so as not to make the relevant details of the present disclosure difficult to understand. Some aspects described herein can be applied independently, and some of them can be applied in combination, which is obvious to those skilled in the art. In the following description, specific details are set forth for explanation purposes to provide a thorough understanding of various aspects of the application. However, it is obvious that various aspects can be implemented without these specific details. Each drawing and description are not intended to be restrictive.
[0042] The following description provides only example aspects and is not intended to limit the scope, applicability or configuration of the present disclosure. Instead, the following description of the example aspects will provide a description that can be used to implement the example aspects to those skilled in the art. It should be understood that various changes may be made to the function and arrangement of the elements without departing from the scope of the present application as set forth in the appended claims.
[0043] Wireless communication networks may be deployed to provide various communication services, such as voice, video, packet data, messaging, broadcast, any combination thereof, or other communication services. Wireless communication networks may support both access links and side links for communication between wireless devices. An access link may refer to any communication link between a client device (e.g., user equipment (UE), station (STA), or other client device) and a base station (e.g., 3GPP gNB for 5G / NR, 3GPP eNB for 4G / LTE, Wi-Fi access point (AP), or other base station). For example, an access link may support uplink signaling, downlink signaling, connection procedures, etc. An example of an access link is a Uu link or interface (also referred to as NR-Uu) between a 3GPP gNB and a UE.
[0044] In various wireless communication networks, reference signals are sent and received via beams. In some examples, beamforming can be used to generate beams. Beamforming (e.g., which may also be referred to as spatial filtering, directional transmission, and / or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a base station or a UE) to shape or guide an antenna beam (e.g., a transmit beam or a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be performed based on combining signals conveyed via antenna elements of an antenna array so that signals propagating at a specific orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals conveyed via antenna elements may include a transmitting device or a receiving device applying a specific amplitude and phase shift to a signal carried by each antenna element associated with the transmitting device or the receiving device. Adjustments associated with each of these antenna elements may be defined by a set of beamforming weights associated with a specific direction (e.g., relative to the antenna array of the transmitting device or the receiving device or relative to some other direction).
[0045] In one example, a base station may use multiple antennas or antenna arrays to perform beamforming operations for directional communication with a UE. For example, one or more signals (e.g., synchronization signals, reference signals, beam management signals, and / or other control signals) may be sent multiple times by a base station in different directions, which may include signals being sent according to different beamforming weight sets associated with different transmission directions. Transmissions in different beam directions may be used to identify (e.g., by a base station or a receiving device (e.g., a UE)) a beam direction used by the base station for subsequent transmission and / or reception. Some signals (e.g., such as data signals associated with a specific receiving device) may be sent by a base station in a single beam direction (e.g., a direction associated with a receiving device or UE). In some examples, a beam direction associated with transmission along a single beam direction may be determined based on signals sent in different beam directions. For example, a UE may receive one or more of the signals sent by a base station in different directions, and the UE may report to the base station an indication of the signal received by the UE with the highest signal quality. In some cases, the UE may report to the base station an indication of multiple signals received by the UE, and the associated signal quality of each corresponding signal received by the UE in the multiple signals.
[0046] In some examples, downlink (DL) beam management (BM) may be performed to determine and / or select an optimal beam from a plurality of beams. For example, in 5G NR, DL beam management may be performed based on synchronization signal block (SSB) measurements and / or channel state information (CSI) reference signal (CSI-RS) measurements. A base station (e.g., a gNB) may send multiple beams or resources in different directions, and a UE may measure some (or all) of the beams sent by the base station. Each beam measured by the UE may be associated with a measurement value. For example, the UE may measure a reference signal received power (RSRP) value and / or a signal to interference plus noise (SINR) value, among others.
[0047] In some cases, the UE may generate and send a layer 1 (L1) (e.g., physical layer) measurement report on an uplink (UL) from the UE to a base station. The uplink channel may include a physical uplink control channel (PUCCH) carrying uplink control information (UCI), a physical uplink shared channel (PUSCH) carrying uplink data, or a physical random access channel (PRACH) for initial network access, among others. In some examples, the L1 measurement report may include SSB and / or CSI-RS measurements (e.g., RSRP and / or SINR values) measured by the UE for corresponding SSB and / or CSI-RS beams or resources sent by the base station. The L1 measurement report may be sent on an uplink channel associated with the UE (e.g., on the PUCCH or PUSCH). Based on receiving the L1 measurement report from the UE, the base station may determine information associated with one or more L1-RSRP or L1-SINR values measured by the UE, and perform DL beam management to select the best or optimal beam for subsequent transmission.
[0048] In some cases, DL beam management may be performed based on at least one demodulation reference signal (DMRS). For example, a base station (e.g., a gNB) may send multiple DMRS in different directions and using different beams or resources. The UE may measure RSRP and / or SINR values and generate an L1 measurement report indicating DMRS measurement information determined at the UE. In some examples, hybrid beam DL beam management may be performed based on a combination of DMRS, SSB, and / or CSI-RS, wherein the UE measures RSRP and / or SINR values for each respective DMRS, SSB, and / or CSI-RS beam or resource. An L1 measurement report indicating the hybrid beam measurement information determined at the UE may be generated and may then be used to perform hybrid beam DL beam management.
[0049] Sending L1 measurement reports may be associated with large signaling overhead (e.g., between a UE and one or more base stations). For example, in some cases, an L1 measurement report may include 7 bits for the strongest measurement and 4 bits for each of the 3 remaining measurements (e.g., indicating a difference with respect to the strongest measurement). In some examples, multiple measurement reports may be transmitted in a single PUCCH or PUSCH (e.g., based on a multiple report setup). For example, the number of measurement reports that may be sent in a single PUCCH or PUSCH may be limited by the PUCCH / PUSCH payload size. If the payload size is insufficient, one or more measurement reports with the lowest priority may be discarded.
[0050] There is a need to reduce the UL signaling overhead associated with sending L1 measurement reports and / or associated with performing DL beam management. In some cases, there is also a need to reduce the UL signaling overhead associated with performing DL beam management based on one or more DMRS. For example, the DMRS may be scheduled on a physical downlink shared channel (PDSCH) grant or associated with a physical downlink shared channel (PDSCH) grant. For each PDSCH grant or PDSCH transmission received by the UE, the UE is required to generate and send a hybrid automatic repeat request (HARQ) feedback. For example, the UE may generate a HARQ acknowledgment (HARQ ACK) based on successfully decoding the PDSCH, and may generate a HARQ negative acknowledgment (HARQ NACK) based on unsuccessfully decoding the PDSCH. In some cases, when DMRS is used to perform DL beam management, the UE may generate and send an L1 measurement report and a HARQ ACK / NACK on a UL channel. There is a need to reduce the UL signaling overhead associated with sending the L1 measurement report and the feedback information associated with performing DL beam management.
[0051] Described herein are systems, apparatus, processes (also referred to as methods), and computer-readable media (collectively, "systems and techniques") that can be used to generate a hybrid beam report that includes hybrid beam information (e.g., RSRP and / or SINR measurements or indications thereof) for multiple reference signals and includes feedback information associated with receiving at least a portion of the multiple reference signals. For example, a single measurement report may be generated to include both the hybrid beam information and the feedback information. In some aspects, the hybrid beam information may include measurement information for one or more DMRSs and measurement information for one or more CSI-RS, SBS, or other reference signal types. The feedback information may be HARQ feedback information (e.g., ACK / NACK) associated with receiving and decoding a PDSCH associated with each of the one or more DMRSs. In some examples, the hybrid beam information may include at least one measured (e.g., absolute) RSRP / SINR value determined for one of the multiple reference signals. For example, the hybrid beam information may include the RSRP / SINR measurement with the largest absolute value. In some cases, the beam information may include differential values for remaining reference signals in the plurality of reference signals (eg, with respect to an RSRP / SINR value having a maximum absolute value).
[0052] In some examples, the feedback information may be HARQ feedback information (e.g., HARQ ACK / NACK) generated based on receiving and decoding a PDSCH associated with a DMRS reference signal. In some cases, a hybrid beam report may not include feedback information and / or HARQ feedback information for non-DMRS reference signals (e.g., CSI-RS, SSB, etc.). In some cases, a hybrid beam report may include HARQ feedback information and beam information. For example, HARQ ACK / NACK may be explicitly included in a hybrid beam report or signaled in other ways. In some examples, a hybrid beam report may be beam information and implicit HARQ feedback information. For example, HARQ ACK may be implicitly signaled based on beam measurements including or other beam information for a given DMRS beam, DMRSI, PDSCH, etc. HARQ NACK may be implicitly signaled based on not including beam measurements or other beam information for a given DMRS beam, DMRSI, PDSCH, etc. In some examples, a hybrid beam report may include multi-bit feedback information (e.g., each feedback information entry includes two or more bits). For example, a multi-bit feedback information value may jointly encode HARQ feedback (e.g., HARQ ACK / NACK) and beam information, where the HARQ feedback and beam information are associated with the same given DMRS beam, DMRSI, PDSCH, etc. In some cases, one bit of the multi-bit feedback information value may encode or indicate HARQ ACK or HARQ NACK, and a second bit of the multi-bit feedback information may encode beam information that compares the L1-RSRP measurement to a predetermined threshold. For example, a first value of the beam information bit (e.g., "0") may indicate that the L1-RSRP is less than a predetermined threshold, and a second value of the beam information bit (e.g., "1") may indicate that the L1-RSRP is greater than or equal to the predetermined threshold.
[0053] Additional aspects of the systems and techniques will be described with respect to the accompanying figures.
[0054] As used herein, the phrase "based on" should not be interpreted as referring to a closed set of information, one or more conditions, one or more factors, etc. In other words, the phrase "based on A" (where "A" can be information, a condition, a factor, etc.) should be interpreted as "based at least on A" unless specifically stated differently.
[0055] As used herein, the terms "user equipment" (UE) and "network entity" are not intended to be exclusive to or otherwise limited to any particular radio access technology (RAT), unless otherwise specified. In general, a UE may be any wireless communication device (e.g., a mobile phone, a router, a tablet computer, a laptop computer, and / or a tracking device, etc.), a wearable device (e.g., a smart watch, smart glasses, a wearable ring, and / or an extended reality (XR) device (such as a virtual reality (VR) headset, an augmented reality (AR) headset or glasses, or a mixed reality (MR) headset)), a vehicle (e.g., a car, a motorcycle, a bicycle, etc.), an aircraft (e.g., an airplane, a jet, an unmanned aerial vehicle (UAV) or drone, a helicopter, an airship, a glider, etc.), and / or an Internet of Things (IoT) device, etc., for a user to communicate over a wireless communication network. A UE may be mobile or may be stationary (e.g., at certain times) and may communicate with a radio access network (RAN). As used herein, the term "UE" may be interchangeably referred to as an "access terminal" or "AT," "client device," "wireless device," "subscriber equipment," "subscriber terminal," "subscriber station," "user terminal" or "UT," "mobile device," "mobile terminal," "mobile station," or variations thereof. In general, a UE may communicate with a core network via a RAN, and through the core network, the UE may connect to external networks such as the Internet and to other UEs. Of course, other mechanisms for connecting to the core network and / or the Internet are also possible for the UE, such as through a wired access network, a wireless local area network (WLAN) network (e.g., based on IEEE 802.11 communication standards, etc.), and the like.
[0056] The network entity may be implemented in a converged or monolithic base station architecture, or alternatively, in a disaggregated base station architecture, and may include one or more of a central unit (CU), a distributed unit (DU), a radio unit (RU), a near real-time (near-RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC. A base station (e.g., having a converged / monolithic base station architecture or a disaggregated base station architecture) may operate according to one of several RATs communicating with a UE (depending on the network in which it is deployed), and may alternatively be referred to as an access point (AP), a network node, a NodeB (NB), an evolved NodeB (eNB), a next generation eNB (ng-eNB), a new radio (NR) NodeB (also referred to as a gNB or gNodeB), etc. A base station may be primarily used to support wireless access for UEs, including supporting data, voice, and / or signaling connections for the supported UEs. In some systems, a base station may provide edge node signaling functionality, while in other systems, a base station may provide additional control and / or network management functionality. The communication link by which a UE can transmit signals to a base station is called an uplink (UL) channel (e.g., a reverse traffic channel, a reverse control channel, an access channel, etc.). The communication link by which a base station can transmit signals to a UE is called a downlink (DL) or forward link channel (e.g., a paging channel, a control channel, a broadcast channel, a forward traffic channel, etc.). As used herein, the term traffic channel (TCH) may refer to an uplink, a reverse or downlink, and / or a forward traffic channel.
[0057] The term "network entity" or "base station" (e.g., having a clustered / monolithic base station architecture or a decomposed base station architecture) may refer to a single physical transmit receive point (TRP) or to multiple physical TRPs that may or may not be co-located. For example, where the term "network entity" or "base station" refers to a single physical TRP, the physical TRP may be a base station antenna corresponding to a cell (or several cell sectors) of the base station. Where the term "network entity" or "base station" refers to multiple co-located physical TRPs, the physical TRPs may be antenna arrays of the base station (e.g., as in a multiple-input multiple-output (MIMO) system or where the base station employs beamforming). Where the term "base station" refers to multiple non-co-located physical TRPs, the physical TRP may be a distributed antenna system (DAS) (e.g., a network of spatially separated antennas connected to a common source via a transmission medium) or a remote radio head (RRH) (e.g., a remote base station connected to a serving base station). Alternatively, the non-co-located physical TRP may be a serving base station receiving measurement reports from a UE and a neighbor base station whose reference radio frequency (RF) signal (e.g., or simply "reference signal") the UE is measuring. Because, as used herein, a TRP is a point through which a base station transmits and receives wireless signals, references to transmitting from a base station or receiving at a base station should be understood to refer to a specific TRP of a base station.
[0058] In some specific implementations of supporting UE positioning, a network entity or base station may not support wireless access of the UE (e.g., may not support data, voice and / or signaling connections with respect to the UE), but may instead send a reference signal to be measured by the UE to the UE, and / or may receive and measure a signal sent by the UE. Such a base station may be referred to as a positioning beacon (e.g., in the case of sending a signal to the UE) and / or as a position measurement unit (e.g., in the case of receiving and measuring a signal from the UE).
[0059] As described herein, a node (which may be referred to as a node, a network node, a network entity, or a wireless node) may include, may be, or may be included in (e.g., as a component of) a base station (e.g., any base station described herein), a UE (e.g., any UE described herein), a network controller, an apparatus, a device, a computing system, an integrated access and backhaul (IAB) node, a distributed unit (DU), a central unit (CU), a remote / radio unit (RU) (which may also be referred to as a remote radio unit (RRU)), and / or another processing entity configured to perform any of the techniques described herein. For example, the network node may be a UE. For another example, the network node may be a base station or a network entity. As another example, a first network node may be configured to communicate with a second network node or a third network node. In one aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a UE. In another aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a base station. In yet other aspects of this example, the first network node, the second network node, and the third network node may be different relative to these examples. Similarly, references to UE, base station, apparatus, device, computing system, etc. may include disclosure of UE, base station, apparatus, device, computing system, etc. as a network node. For example, a disclosure that a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node. Consistent with the present disclosure, once a specific example is expanded according to the present disclosure (e.g., a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node), a broader example of a narrower example may be interpreted in reverse, but in a broad, open-ended manner. In the above example that a UE is configured to receive information from a base station also discloses that a first network node is configured to receive information from a second network node, the first network node may refer to a first UE configured to receive information, a first base station, a first apparatus, a first device, a first computing system, a first group of one or more components, a first processing entity, etc.; and the second network node may refer to a second UE, a second base station, a second apparatus, a second device, a second computing system, a second group of one or more components, a second processing entity, etc.
[0060] As described herein, different terms may be used in various aspects to describe the communication of information (e.g., any information, signal, etc.). Disclosure of one communication term includes disclosure of other communication terms. For example, a first network node may be described as being configured to send information to a second network node. In this example and consistent with the present disclosure, disclosure that the first network node is configured to send information to the second network node includes disclosure that the first network node is configured to provide, transmit, output, communicate, or send information to the second network node. Similarly, in this example and consistent with the present disclosure, disclosure that the first network node is configured to send information to the second network node includes disclosure that the second network node is configured to receive, obtain, or decode information provided, transmitted, output, communicated, or sent by the first network node.
[0061] RF signals include electromagnetic waves of a given frequency that transmit information through the space between a transmitter and a receiver. As used herein, a transmitter may transmit a single "RF signal" or multiple "RF signals" to a receiver. However, due to the propagation characteristics of RF signals through multipath channels, a receiver may receive multiple "RF signals" corresponding to each transmitted RF signal. The same transmitted RF signal on different paths between a transmitter and a receiver may be referred to as a "multipath" RF signal. As used herein, an RF signal may also be referred to as a "wireless signal" or simply a "signal" where it is clear from the context that the term "signal" refers to a wireless signal or an RF signal.
[0062] Various aspects of the systems and techniques described herein are discussed below with respect to the accompanying drawings. According to various aspects, Figure 1 An example of a wireless communication system 100 is illustrated. The wireless communication system 100 (e.g., which may also be referred to as a wireless wide area network (WWAN)) may include various base stations 102 and various UEs 104. In some aspects, the base stations 102 may also be referred to as "network entities" or "network nodes." One or more of the base stations 102 may be implemented in an aggregated or monolithic base station architecture. Additionally or alternatively, one or more of the base stations 102 may be implemented in a decomposed base station architecture and may include one or more of a central unit (CU), a distributed unit (DU), a radio unit (RU), a near real-time (near-RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC. The base stations 102 may include macro cell base stations (e.g., high power cellular base stations) and / or small cell base stations (e.g., low power cellular base stations). On the one hand, the macro cell base station may include an eNB and / or an ng-eNB (where the wireless communication system 100 corresponds to a long term evolution (LTE) network), or a gNB (where the wireless communication system 100 corresponds to an NR network), or a combination of both, and the small cell base station may include a femto cell, a pico cell, a micro cell, etc.
[0063] The base stations 102 may collectively form a RAN and interface with a core network 170 (e.g., an evolved packet core (EPC) or a 5G core (5GC)) through a backhaul link 122, and interface to one or more location servers 172 (e.g., the one or more location servers may be part of the core network 170 or may be external to the core network 170) through the core network 170. Among other functions, the base stations 102 may perform functions related to one or more of the following: delivering user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, RAN sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment tracking, RAN information management (RIM), paging, positioning, and delivery of warning messages. The base stations 102 may communicate with each other directly or indirectly (e.g., through the EPC or 5GC) through a backhaul link 134 (which may be wired and / or wireless).
[0064] Base station 102 can communicate wirelessly with UE 104. Each of base stations 102 can provide communication coverage for a corresponding geographic coverage area 110. In one aspect, base station 102 in each coverage area 110 can support one or more cells. A "cell" is a logical communication entity used to communicate with a base station (e.g., on a certain frequency resource, referred to as a carrier frequency, component carrier, carrier, frequency band, etc.), and can be associated with an identifier (e.g., a physical cell identifier (PCI), a virtual cell identifier (VCI), a cell global identifier (CGI)) to distinguish cells operating via the same or different carrier frequencies. In some cases, different cells can be configured according to different protocol types (e.g., machine type communication (MTC), narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB) or other protocol types) that can provide access to different types of UEs. Because a cell is supported by a specific base station, the term "cell" can refer to either or both of the logical communication entity and the base station supporting it, depending on the context. In addition, because a TRP is typically a physical transmission point of a cell, the terms "cell" and "TRP" can be used interchangeably. In some cases, the term “cell” may also refer to a geographic coverage area (eg, a sector) of a base station, as long as a carrier frequency can be detected and used for communications within some portion of the geographic coverage area 110 .
[0065] Although the geographic coverage areas 110 of neighboring macrocell base stations 102 may partially overlap (e.g., in a handover area), some of the geographic coverage areas 110 may substantially overlap with the larger geographic coverage area 110. For example, a small cell base station 102' may have a coverage area 110' that substantially overlaps with the coverage areas 110 of one or more macrocell base stations 102. A network that includes both small cell base stations and macrocell base stations may be referred to as a heterogeneous network. A heterogeneous network may also include a home eNB (HeNB), which may provide services to a restricted group called a closed subscriber group (CSG).
[0066] The communication link 120 between the base station 102 and the UE 104 may include uplink (e.g., also referred to as a reverse link) transmissions from the UE 104 to the base station 102 and / or downlink (e.g., also referred to as a forward link) transmissions from the base station 102 to the UE 104. The communication link 120 may use MIMO antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. The communication link 120 may be provided using one or more carrier frequencies. The allocation of carriers may be asymmetric with respect to the downlink and uplink (e.g., a greater or lesser number of carriers may be allocated to the downlink than to the uplink).
[0067] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., one or more of base station 102, UE 104, etc.) to form or direct an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be implemented based on combining signals conveyed via antenna elements of an antenna array so that some signals propagating at a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals conveyed via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each of these antenna elements may be defined by a set of beamforming weights associated with a particular direction (e.g., relative to the antenna array of the transmitting device or the receiving device or relative to some other direction).
[0068] A transmitting device and / or a receiving device (e.g., such as one or more of a base station 102 and / or a UE 104) may use beam scanning techniques as part of a beamforming operation. For example, a base station 102 (e.g., or other transmitting device) may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with a UE 104 (e.g., or other receiving device). Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the base station 102 (or other transmitting device) in different directions. For example, the base station 102 may transmit signals according to different beamforming weight sets associated with different transmission directions. Transmissions in different beam directions may be used to identify (e.g., by a transmitting device (such as a base station 102), or by a receiving device (such as a UE 104)) beam directions for the base station 102 to transmit or receive later.
[0069] Some signals, such as data signals associated with a particular receiving device, may be sent by base station 102 in a single beam direction, e.g., a direction associated with a receiving device, such as UE 104. In some examples, a beam direction associated with transmission along a single beam direction may be determined based on signals sent in one or more beam directions. For example, UE 104 may receive one or more of the signals sent by base station 102 in different directions and may report to base station 104 an indication of the signal received by UE 104 with the highest signal quality or other acceptable signal quality.
[0070] In some examples, transmission by a device (e.g., by a base station 102 or a UE 104) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from a base station 102 to a UE 104, from a transmitting device to a receiving device, etc.). The UE 104 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across a system bandwidth or one or more subbands. The base station 102 may send a reference signal (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), etc.), which may be precoded or not precoded. The UE 104 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel codebook, a linear combination codebook, a port selection codebook). Although these techniques are described with reference to signals sent by base station 102 in one or more directions, UE 104 may employ similar techniques to send signals multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 104), or to send signals in a single direction (e.g., to send data to a receiving device).
[0071] A receiving device (e.g., UE 104) may try multiple reception configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from a base station 102. For example, a receiving device may try multiple reception directions by receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different reception configurations or reception directions. In some examples, a receiving device may use a single reception configuration to receive along a single beam direction (e.g., when receiving a data signal). The single reception configuration may be aligned on a beam direction determined based on listening according to different reception configuration directions (e.g., a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).
[0072] The wireless communication system 100 may further include a WLAN AP 150 in communication with a WLAN station (STA) 152 via a communication link 154 in an unlicensed spectrum (e.g., 5 gigahertz (GHz)). When communicating in the unlicensed spectrum, the WLAN STA 152 and / or the WLAN AP 150 may perform a clear channel assessment (CCA) or a listen-before-talk (LBT) procedure before communicating to determine whether the channel is available. In some examples, the wireless communication system 100 may include a device (e.g., UE, etc.) that communicates with one or more UEs 104, base stations 102, APs 150, etc. using an ultra-wideband (UWB) spectrum. The UWB spectrum may range from 3.1 GHz to 10.5 GHz.
[0073] The small cell base station 102' can operate in licensed and / or unlicensed spectrum. When operating in the unlicensed spectrum, the small cell base station 102' can adopt LTE or NR technology and use the same 5GHz unlicensed spectrum used by the WLAN AP 150. The small cell base station 102' using LTE and / or 5G in the unlicensed spectrum can boost the coverage of the access network and / or increase the capacity of the access network. NR in the unlicensed spectrum can be referred to as NR-U. LTE in the unlicensed spectrum can be referred to as LTE-U, Licensed Assisted Access (LAA) or MulteFire.
[0074] The wireless communication system 100 may also include a millimeter wave (mmW) base station 180, which may operate at mmW frequencies and / or near mmW frequencies to communicate with UE 182. The mmW base station 180 may be implemented in an aggregated or monolithic base station architecture, or alternatively, in a decomposed base station architecture (e.g., including one or more of a CU, DU, RU, near RT RIC, or non-RT RIC). Extremely high frequency (EHF) is part of the RF in the electromagnetic spectrum. EHF has a range of 30 GHz to 300 GHz, with a wavelength between 1 mm and 10 mm. The radio waves in this band may be referred to as millimeter waves. Near mmW may extend down to a frequency of 3 GHz, with a wavelength of 100 mm. The super high frequency (SHF) band extends between 3 GHz and 30 GHz, and is also referred to as centimeter waves. Communications using mmW and / or near mmW radio frequency bands have high path loss and a relatively short range. The mmW base station 180 and the UE 182 may utilize beamforming (e.g., transmit and / or receive) on the mmW communication link 184 to compensate for the extremely high path loss and short range. In addition, it should be understood that in alternative configurations, one or more base stations 102 may also transmit using mmW or near-mmW and beamforming. Therefore, it should be understood that the foregoing illustrations are merely examples and should not be construed as limiting the various aspects disclosed herein.
[0075] In some aspects related to 5G, the spectrum in which a wireless network node or entity (e.g., base station 102 / 180, UE 104 / 182) operates is divided into multiple frequency ranges: FR1 (e.g., from 450 megahertz (MHz) to 6,000 MHz), FR2 (e.g., from 24,250 MHz to 52,600 MHz), FR3 (e.g., above 52,600 MHz), and FR4 (e.g., between FR1 and FR2). In a multi-carrier system such as 5G, one of the carrier frequencies is referred to as a "primary carrier" or "anchor carrier" or "primary serving cell" or "PCell", and the remaining carrier frequencies are referred to as "secondary carriers" or "secondary serving cells" or "SCells". In carrier aggregation, the anchor carrier is a carrier operating on the primary frequency (e.g., FR1) used by the UE 104 / 182 and the cell in which the UE 104 / 182 performs an initial radio resource control (RRC) connection establishment procedure or initiates an RRC connection reestablishment procedure. The primary carrier carries all common control channels as well as UE-specific control channels and can be a carrier in a licensed frequency (however, this is not always the case). The secondary carrier is a carrier operating on a second frequency (e.g., FR2) that can be configured and used to provide additional radio resources once an RRC connection is established between the UE 104 and the anchor carrier. In some cases, the secondary carrier can be a carrier in an unlicensed frequency. The secondary carrier may contain only necessary signaling information and signals, for example, since the primary uplink carrier and the primary downlink carrier are typically UE-specific, those signaling information and signals that are UE-specific may not be present in the secondary carrier. This means that different UEs 104 / 182 in a cell may have different downlink primary carriers. This is also true for the uplink primary carrier. The network can change the primary carrier of any UE 104 / 182 at any time. This is done, for example, to balance the load on different carriers. Since a "serving cell" (e.g., whether PCell or SCell) corresponds to a carrier frequency or component carrier that some base stations are using to communicate, the terms "cell", "serving cell", "component carrier", "carrier frequency", etc. can be used interchangeably.
[0076] For example, still refer to Figure 1, one of the frequencies used by the macrocell base station 102 may be an anchor carrier (or "PCell"), and the other frequencies used by the macrocell base station 102 and / or the mmW base station 180 may be secondary carriers ("SCells"). In carrier aggregation, the base station 102 and / or the UE 104 may use a spectrum of up to Y MHz (e.g., 5 MHz, 10 MHz, 15 MHz, 20 MHz, 100 MHz) bandwidth per carrier, with up to a total of Yx MHz (e.g., x component carriers) in each direction for transmission. The component carriers may or may not be adjacent to each other in the spectrum. The allocation of carriers may be asymmetric with respect to the downlink and uplink (e.g., a greater or lesser number of carriers may be allocated to the downlink than to the uplink). The simultaneous transmission and / or reception of multiple carriers enables the UE 104 / 182 to significantly increase its data transmission and / or reception rate. For example, two 20 MHz aggregated carriers in a multi-carrier system would theoretically result in a doubling of the data rate (e.g., 40 MHz) compared to the data rate obtained with a single 20 MHz carrier.
[0077] In order to operate on multiple carrier frequencies, the base station 102 and / or the UE 104 may be equipped with multiple receivers and / or transmitters. For example, the UE 104 may have two receivers, namely "receiver 1" and "receiver 2", where "receiver 1" is a multi-band receiver that can be tuned to a frequency band (e.g., carrier frequency) "X" or a frequency band "Y", and "receiver 2" is a single-band receiver that can be tuned to only a frequency band "Z". In this example, if the UE 104 is being served in frequency band "X", the frequency band "X" will be referred to as the PCell or active carrier frequency, and "receiver 1" will need to tune from frequency band "X" to frequency band "Y" (e.g., SCell) to measure frequency band "Y" (or vice versa). In contrast, regardless of whether the UE 104 is being served in frequency band "X" or frequency band "Y", due to the separate "receiver 2", the UE 104 can measure frequency band "Z" without interrupting the service on frequency band "X" or frequency band "Y".
[0078] The wireless communication system 100 may further include a UE 164, which may communicate with the macrocell base station 102 over the communication link 120 and / or communicate with the mmW base station 180 over the mmW communication link 184. For example, the macrocell base station 102 may support a PCell and one or more SCells for the UE 164, and the mmW base station 180 may support one or more SCells for the UE 164.
[0079] The wireless communication system 100 may also include one or more UEs, such as UE 190, which are indirectly connected to one or more communication networks via one or more device-to-device (D2D) peer-to-peer (P2P) links (e.g., referred to as “side links”). Figure 1 In the example of FIG. 1 , UE 190 has a D2D P2P link 192 with one of UEs 104 connected to one of base stations 102 (e.g., UE 190 can indirectly obtain cellular connectivity through the link), and has a D2D P2P link 194 with WLAN STA 152 connected to WLAN AP 150 (e.g., UE 190 can indirectly obtain WLAN-based Internet connectivity through the link). In an example, D2D P2P links 192 and 194 can use any well-known D2D RAT (such as LTE Direct (LTE-D), WiFi Direct (WiFi-D), etc.) to support.
[0080] Figure 2 A block diagram illustrating an example architecture 200 of a base station 102 and a UE 104 that enables sending and processing of signals exchanged between the UE and the base station according to some aspects of the present disclosure. The example architecture 200 includes components of the base station 102 and the UE 104, which may be Figure 1 Shown are one of base stations 102 and one of UEs 104. Base station 102 may be equipped with T antennas 234a through 234t, and UE 104 may be equipped with R antennas 252a through 252r, where in general T≥1 and R≥1.
[0081] At the base station 102, the transmit processor 220 may receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE based on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for each UE based on the MCS selected for the UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signals (PSS) and secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., pre-coding) on data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide T output symbol streams to T modulators (MOD) 232a to 232t. The modulators 232a to 232t are shown as combined modulator-demodulators (MOD-DEMOD). In some cases, the modulator and demodulator may be separate components. Each modulator in the modulators 232a to 232t may process a corresponding output symbol stream (e.g., for an orthogonal frequency division multiplexing (OFDM) scheme, etc.) to obtain an output sample stream. Each modulator in the modulators 232a to 232t may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals may be sent from the modulators 232a to 232t via T antennas 234a to 234t, respectively. According to certain aspects described in greater detail below, position encoding may be utilized to generate a synchronization signal to convey additional information.
[0082] At UE 104, antennas 252a to 252r may receive downlink signals from base station 102 and / or other base stations, and may provide received signals to one or more demodulators (DEMOD) 254a to 254r, respectively. Demodulators 254a to 254r are shown as combined modulator-demodulators (MOD-DEMOD). In some cases, the modulator and demodulator may be separate components. Each demodulator in demodulators 254a to 254r may adjust (e.g., filter, amplify, downconvert and digitize) the received signal to obtain input samples. Each demodulator in demodulators 254a to 254r may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection (if applicable) on the received symbols, and provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 104 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The channel processor may determine a reference signal received power (RSRP), a received signal strength indicator (RSSI), a reference signal received quality (RSRQ), a channel quality indicator (CQI), etc.
[0083] On the uplink, at the UE 104, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.) from a controller / processor 280. The transmit processor 264 may also generate reference symbols for one or more reference signals (e.g., based on a beta value or set of beta values associated with the one or more reference signals). The symbols from the transmit processor 264 may be pre-coded by the TX MIMO processor 266, further processed by the modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and sent to the base station 102. At the base station 102, uplink signals from the UE 104 and other UEs may be received by antennas 234a to 234t, processed by demodulators 232a to 232t, detected by a MIMO detector 236 (e.g., where applicable), and further processed by a receive processor 238 to obtain decoded data and control information transmitted by the UE 104. The receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to a controller (e.g., processor) 240. The base station 102 may include a communication unit 244 and communicate with the network controller 231 via the communication unit 244. The network controller 231 may include a communication unit 294, a controller / processor 290, and a memory 292.
[0084] In some aspects, one or more components of the UE 104 may be included in a housing. The controller 240 of the base station 102, the controller / processor 280 of the UE 104, and / or Figure 2 Any other component of may perform one or more techniques associated with implicit UCI β value determination for NR.
[0085] Memories 242 and 282 may store data and program codes for base station 102 and UE 104, respectively. A scheduler 246 may schedule UEs for data transmission on the downlink, uplink, and / or sidelink.
[0086] In some aspects, the deployment of a communication system such as a 5G New Radio (NR) system can be arranged with various components or constituent parts in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a radio access network (RAN) node, a core network node, a network element, or a network equipment (such as a base station (BS), or one or more units (or one or more components) that perform base station functionality can be implemented in an aggregated or decomposed architecture. For example, a BS (e.g., such as a Node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a transmit receive point (TRP), or a cell, etc.) can be implemented as an aggregated base station (e.g., also referred to as an independent BS or a monolithic BS) or a decomposed base station.
[0087] A converged base station may be configured to utilize a radio protocol stack physically or logically integrated within a single RAN node. A decomposed base station may be configured to utilize a protocol stack physically or logically distributed between two or more units (e.g., such as one or more central or centralized units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)). In some aspects, a CU may be implemented within a RAN node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed in one or more other RAN nodes. A DU may be implemented to communicate with one or more RUs. Each of a CU, a DU, and a RU may also be implemented as a virtual unit, i.e., a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU).
[0088] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a disaggregated base station may be used in an integrated access backhaul (IAB) network, an open radio access network (O-RAN (e.g., a network configuration such as that initiated by the O-RAN Alliance)), or a virtualized radio access network (e.g., vRAN, also known as a cloud radio access network (C-RAN)). Decomposition may include distributing functionality across two or more units at various physical locations, as well as virtually distributing functionality of at least one unit, which may enable flexibility in network design. Individual units of a disaggregated base station or disaggregated RAN architecture may be configured for wired or wireless communication with at least one other unit.
[0089] Figure 3 300 architecture. The decomposed base station 300 architecture may include one or more CUs 310, which may communicate directly with the core network 320 via a backhaul link, or indirectly with the core network 320 through one or more decomposed base station units (e.g., such as a near real-time (near RT) RAN intelligent controller (RIC) 325 via an E2 link, or a non-real-time (non-RT) RIC 315 associated with a service management and orchestration (SMO) framework 305, or both). The CU 310 may communicate with one or more distributed units (DUs) 330 via corresponding midhaul links (such as an F1 interface). The DU 330 may communicate with one or more radio units (RUs) 340 via corresponding fronthaul links. The RU 340 may communicate with corresponding UEs 104 via one or more radio frequency (RF) access links. In some implementations, a UE 104 may be served by multiple RUs 340 simultaneously.
[0090] Figure 3Each of the units shown and / or described herein (e.g., CU 310, DU 330, RU 340, and near-RT RIC 325, non-RT RIC 315, and SMO framework 305) may include one or more interfaces, or may be coupled to one or more interfaces configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to the communication interface of these units may be configured to communicate with one or more of the other units via a transmission medium. For example, these units may include a wired interface that is configured to receive or send signals to one or more of the other units via a wired transmission medium. Additionally, the unit may include a wireless interface that may include a receiver, a transmitter, or a transceiver (e.g., such as a radio frequency (RF) transceiver) that is configured to receive or send signals, or both, to one or more of the other units via a wireless transmission medium.
[0091] In some aspects, CU 310 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by CU 310. CU 310 may be configured to handle user plane functionality (e.g., central unit-user plane (CU-UP)), control plane functionality (e.g., central unit-control plane (CU-CP)), or a combination thereof. In some specific implementations, CU 310 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, CU 310 may be implemented to communicate with DU 330 for network control and signaling.
[0092] DU 330 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RU 340. In some aspects, DU 330 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.) depending on a functional partition (e.g., such as a functional partition defined by the 3rd Generation Partnership Project (3GPP)). In some aspects, DU 330 may further host one or more low PHY layers. Each layer (or module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by DU 330 or with control functions hosted by CU 310.
[0093] The lower layer functionality may be implemented by one or more RUs 340. In some deployments, a RU 340 controlled by a DU 330 may correspond to a logical node that hosts RF processing functions or low PHY layer functions (e.g., such as performing Fast Fourier Transform (FFT), Inverse FFT (iFFT), digital beamforming, physical random access channel (PRACH) extraction and filtering, etc.), or both, based on a functional split (such as a lower layer functional split). In such an architecture, the RU 340 may be implemented to handle over-the-air (OTA) communications with one or more UEs 104. In some implementations, real-time and non-real-time aspects of control plane communications and user plane communications with the RU 340 may be controlled by the corresponding DU 330. In some scenarios, this configuration may enable the implementation of the DU 330 and the CU 310 in a cloud-based RAN architecture (such as a vRAN architecture).
[0094] The SMO framework 305 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (e.g., such as an O1 interface). For virtualized network elements, the SMO framework 305 may be configured to interact with a cloud computing platform (e.g., such as an open cloud (O-Cloud) 390) to perform network element lifecycle management (e.g., such as instantiating virtualized network elements) via a cloud computing platform interface (e.g., such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, and near-RT RIC 325. In some specific implementations, the SMO framework 305 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 311) via the O1 interface. Additionally, in some specific implementations, the SMO framework 305 may communicate directly with one or more RUs 340 via the O1 interface. The SMO framework 305 may also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305 .
[0095] The non-RT RIC 315 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 325. The non-RT RIC 315 may be coupled to or in communication with the near-RT RIC 325 (e.g., such as via an A1 interface). The near-RT RIC 325 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (e.g., such as via an E2 interface) that connects one or more CUs 310, one or more DUs 330, or both, and the O-eNB with the near-RT RIC 325.
[0096] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 325, the non-RT RIC 315 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 325 and may be received from a non-network data source or from a network function at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or the near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 305 (e.g., such as via reconfiguration of O1) or via the creation of RAN management policies (e.g., such as A1 policies).
[0097] Figure 4 An example of a computing system 470 of a wireless device 407 is illustrated. The wireless device 407 may include a client device such as a UE (e.g., UE 104, UE 152, UE 190) or other type of device that can be used by an end user (e.g., a station (STA) configured to communicate using a Wi-Fi interface). For example, the wireless device 407 may include a mobile phone, a router, a tablet computer, a laptop computer, a tracking device, a wearable device (e.g., a smart watch, glasses, an extended reality (XR) device (such as a virtual reality (VR), augmented reality (AR) or mixed reality (MR) device), etc.), an Internet of Things (IoT) device, a vehicle, an aircraft, and / or another device configured to communicate via a wireless communication network. The computing system 470 includes software and hardware components that can be electrically coupled or communicatively coupled via a bus 489 (e.g., or can communicate in other ways, as the case may be). For example, the computing system 470 includes one or more processors 484. One or more processors 484 may include one or more CPUs, ASICs, FPGAs, APs, GPUs, VPUs, NSPs, microcontrollers, dedicated hardware, any combination thereof, and / or other processing devices or systems. One or more processors 484 may use a bus 489 to communicate between cores and / or with one or more memory devices 486.
[0098] The computing system 470 may also include one or more memory devices 486, one or more digital signal processors (DSPs) 482, one or more SIMs 474, one or more modems 476, one or more wireless transceivers 478, an antenna 487, one or more input devices 472 (e.g., a camera, a mouse, a keyboard, a touch-sensitive screen, a touchpad, a keypad, a microphone, etc.), and one or more output devices 480 (e.g., a display, a speaker, a printer, etc.).
[0099] In some aspects, computing system 470 may include one or more RF interfaces configured to send and / or receive radio frequency (RF) signals. In some examples, the RF interface may include components such as modem 476, wireless transceiver 478, and / or antenna 487. One or more wireless transceivers 478 may send and receive wireless signals (e.g., signal 488) from one or more other devices via antenna 487, such as other wireless devices, network devices (e.g., base stations such as eNBs and / or gNBs, Wi-Fi access points (APs) such as routers, range extenders, etc.), cloud networks, etc. In some examples, computing system 470 may include multiple antennas or antenna arrays that can facilitate simultaneous transmission and reception functionality. Antenna 487 may be an omnidirectional antenna so that radio frequency (RF) signals can be received from all directions and transmitted in all directions. Wireless signal 488 may be sent via a wireless network. The wireless network may be any wireless network, such as a cellular or telecommunications network (e.g., 3G, 4G, 5G, etc.), a wireless local area network (e.g., a Wi-Fi network), a Bluetooth TM network and / or other networks.
[0100] In some examples, wireless signals 488 may be transmitted directly to other wireless devices using sidelink communications (e.g., using a PC5 interface, using a DSRC interface, etc.). Wireless transceiver 478 may be configured to transmit RF signals via antenna 487 for performing sidelink communications according to one or more transmit power parameters that may be associated with one or more regulatory modes. Wireless transceiver 478 may also be configured to receive sidelink communication signals having different signal parameters from other wireless devices.
[0101] In some examples, one or more wireless transceivers 478 may include an RF front end that includes one or more components such as an amplifier, a mixer for down-converting a signal (e.g., also referred to as a signal multiplier), a frequency synthesizer (e.g., also referred to as an oscillator) that provides a signal to the mixer, a baseband filter, an analog-to-digital converter (ADC), one or more power amplifiers, and other components. The RF front end may generally handle the selection of wireless signals 488 and the conversion of the wireless signals to baseband frequencies or intermediate frequencies, and may convert the RF signals to the digital domain.
[0102] In some cases, computing system 470 may include a coding-decoding device (or CODEC) configured to encode and / or decode data transmitted and / or received using one or more wireless transceivers 478. In some cases, computing system 470 may include an encryption-decryption device or component configured to encrypt and / or decrypt data transmitted and / or received by one or more wireless transceivers 478 (e.g., according to the AES and / or DES standards).
[0103] One or more SIMs 474 may each securely store an International Mobile Subscriber Identity (IMSI) number and associated keys assigned to a user of the wireless device 407. The IMSI and keys may be used to identify and authenticate a subscriber when accessing a network provided by a network service provider or operator associated with the one or more SIMs 474. One or more modems 476 may modulate one or more signals to encode information for transmission using one or more wireless transceivers 478. One or more modems 476 may also demodulate signals received by one or more wireless transceivers 478 in order to decode the transmitted information. In some examples, one or more modems 476 may include a Wi-Fi modem, a 4G (or LTE) modem, a 5G (or NR) modem, and / or other types of modems. One or more modems 476 and one or more wireless transceivers 478 may be used to communicate data of one or more SIMs 474.
[0104] The computing system 470 may also include (and / or be in communication with) one or more non-transitory machine-readable storage media or storage devices (e.g., one or more memory devices 486), which may include, but are not limited to, local and / or network accessible storage, disk drives, drive arrays, optical storage devices, solid-state storage devices such as RAM and / or ROM, which may be programmable, flash-updatable, etc. Such storage devices may be configured to implement any suitable data storage, including, but not limited to, various file systems, database structures, etc.
[0105] In various aspects, the functionality may be stored as one or more computer program products (e.g., instructions or code) in the memory device 486 and executed by the one or more processors 484 and / or the one or more DSPs 482. The computing system 470 may also include software elements (e.g., located within the one or more memory devices 486) including, for example, an operating system, device drivers, executable libraries, and / or other code, such as one or more applications, which may include computer programs that implement the functionality provided by various aspects and / or may be designed to implement methods and / or configure systems, as described herein.
[0106] Figure 5 is a diagram illustrating an example 500 of physical channels and reference signals in a wireless network. In some examples, one or more downlink channels and one or more downlink reference signals may carry information from a base station 102 to a UE 104. One or more uplink channels and one or more uplink reference signals may carry information from a UE 104 to a base station 102.
[0107] In some aspects, the downlink channels may include one or more of a physical downlink control channel (PDCCH) carrying downlink control information (DCI), a physical downlink shared channel (PDSCH) carrying downlink data, and / or a physical broadcast channel (PBCH) carrying system information, etc. In some aspects, PDSCH communications may be scheduled by PDCCH communications.
[0108] In some examples, the uplink channels may include one or more of a physical uplink control channel (PUCCH) carrying uplink control information (UCI), a physical uplink shared channel (PUSCH) carrying uplink data, and / or a physical random access channel (PRACH) for initial network access, etc. In some aspects, the UE 104 may send acknowledgement (ACK) or negative acknowledgement (NACK) feedback (e.g., ACK / NACK feedback or ACK / NACK information) in the UCI on the PUCCH and / or PUSCH.
[0109] In some cases, the downlink reference signal may include one or more of a synchronization signal block (SSB), a channel state information (CSI) reference signal (CSI-RS), a demodulation reference signal (DMRS), a positioning reference signal (PRS), and / or a phase tracking reference signal (PTRS), etc. In some examples, the uplink reference signal may include one or more of a sounding reference signal (SRS), a DMRS, and / or a PTRS, etc.
[0110] The SSB may carry or include information for initial network acquisition and synchronization. For example, the SSB may carry or include one or more of a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a PBCH, and / or a PBCH DMRS. The SSB may be referred to as a synchronization signal / PBCH (SS / PBCH) block. In some aspects, the base station 102 may send multiple SSBs on multiple corresponding beams, and the SSBs may be used for beam selection.
[0111] The CSI-RS may carry information for downlink channel estimation (e.g., downlink CSI acquisition), which may be used for scheduling, link adaptation, or beam management, among other things. For example, the base station 102 may configure a CSI-RS set for the UE 104, and the UE 104 may measure the configured CSI-RS set. Based on the CSI-RS measurement, the UE 104 may perform channel estimation and report channel estimation parameters to the base station 102 (e.g., in a CSI report). For example, the channel estimation parameters may include one or more of a channel quality indicator (CQI), a precoding matrix indicator (PMI), a CSI-RS resource indicator (CRI), a layer indicator (LI), a rank indicator (RI), and / or a reference signal received power (RSRP), among others.
[0112] In some examples, base station 102 can use the CSI report to select transmission parameters for downlink communications to UE 104. For example, base station 102 can use the CSI report to select transmission parameters including one or more of the following: the number of transmission layers (e.g., rank), a precoding matrix (e.g., a precoder), a modulation and coding scheme (MCS), and / or a refined downlink beam (e.g., using a beam refinement procedure or a beam management procedure), etc.
[0113] DMRS may carry information for estimating a radio channel to demodulate an associated physical channel (e.g., PDCCH, PDSCH, PBCH, PUCCH, or PUSCH). The design and mapping of DMRS may be specific to the physical channel that the DMRS is used to estimate. DMRS is UE-specific, may be beamformed, may be restricted to scheduled resources (e.g., rather than being sent over a wideband), and may be sent only when necessary. As shown, DMRS is used for both downlink and uplink communications.
[0114] PTRS may carry information for compensating for oscillator phase noise. In some cases, oscillator phase noise may increase as the oscillator carrier frequency increases. In some examples, PTRS may be utilized at high carrier frequencies (e.g., such as millimeter wave frequencies) to mitigate oscillator phase noise. PTRS may be used to track the phase of a local oscillator and to achieve suppression of phase noise and common phase error (CPE). Figure 5 As shown, in some examples, one or more PTRS may be used for both downlink communications (e.g., on the PDSCH) and uplink communications (e.g., on the PUSCH).
[0115] The PRS may carry information associated with timing or ranging measurements of the UE 104. For example, the UE 104 may utilize one or more signals (e.g., PRS) transmitted by the base station 102 to improve observed time difference of arrival (OTDOA) positioning performance. In some examples, the PRS may be a pseudo-random quadrature phase shift keying (QPSK) sequence mapped in a diagonal pattern with a frequency offset and a time offset to avoid conflicts with cell-specific reference signals and control channels (e.g., PDCCH). The PRS may be designed to improve the detectability of the UE 104, which may need to detect downlink signals from multiple neighboring base stations in order to perform OTDOA-based positioning. Therefore, the UE 104 may receive PRS from multiple cells (e.g., a reference cell and one or more neighboring cells), and may report a reference signal time difference (RSTD) based on OTDOA measurements associated with the PRS received from the multiple cells. In some aspects, the base station 102 may calculate the position of the UE 104 based on the RSTD measurements reported by the UE 104.
[0116] In some examples, the SRS may carry information for uplink channel estimation, which may be used for scheduling, link adaptation, pre-decoder selection, and / or beam management, among others. The base station 102 may configure one or more SRS resource sets for the UE 104, and the UE 104 may send the SRS on the configured SRS resource sets. The SRS resource sets may have configured purposes, such as uplink CSI acquisition, downlink CSI acquisition for reciprocity-based operation, uplink beam management, and the like. The base station 102 may measure the SRS, may perform channel estimation based on the measurements, and / or may use the SRS measurements to configure communications with the UE 104.
[0117] Figure 6 6 is a diagram illustrating an example of an aperiodic configuration 600 for a beam management procedure based on DMRS and at least one of CSI-RS or SSB. For example, the aperiodic configuration 600 may be used to implement or otherwise be associated with a beam management procedure. In some examples, the beam management procedure may be a procedure for selecting and / or refining one or more beams for communication between two wireless communication devices (e.g., such as a UE and a base station). For example, a UE may perform measurements based on various reference signals (e.g., DMRS, SSB, and / or CSI-RS) and may report information about the measurements to a base station. The information about the measurements may indicate one or more selected beams, one or more preferred beams, measurement information (e.g., measurement values), etc.
[0118] In one illustrative example, the beam management procedure may be a hybrid beam management procedure. The hybrid beam management procedure may be a beam management procedure that utilizes multiple reference signals including one or more reference signals of a first type that are different from one or more reference signals of a second type of the first type. For example, the hybrid beam management procedure may utilize multiple reference signals including one or more DMRS and at least one of SSB or CSI-RS.
[0119] like Figure 6 As shown, a base station (BS) may send downlink control information (DCI) 610. DCI 610 may schedule PDSCH 620. In some examples, PDSCH 620 may include DMRS 630 sent on beam 0. DCI 610 may also schedule aperiodic CSI-RS 640 on beams 1 and 2. DCI 610 may also schedule aperiodic measurement reports 650 on an uplink of a UE (e.g., UE 104, UE 407, etc.). The UE may send a measurement report on the uplink. In some aspects, the aperiodic configuration 600 of a hybrid beam management procedure may be considered as an example of an explicit indication of which resources (e.g., SSB resources, CSI-RS resources, DMRS resources) are to be included in the hybrid beam management procedure. In the example of the aperiodic configuration 600, the explicit indication may be DCI 510. In some aspects, the explicit indication may be a MAC signal (e.g., such as a MAC control element (CE)).
[0120] A receiving device (e.g., a UE, which may be an example of a mmW receiving device) may try multiple receive beams when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from a base station. For example, the receiving device may try multiple receive directions by receiving via different antenna subarrays, processing the received signals according to different antenna subarrays, receiving according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, and / or processing the received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array (e.g., any of which may be referred to as "listening" according to different receive beams or receive directions). In some examples, the receiving device may use a single receive beam to receive along a single beam direction (e.g., when receiving a data signal). The single receive beam may be aligned on a beam direction determined based on listening according to different receive beam directions (e.g., a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio, or other acceptable signal quality based on listening according to multiple beam directions).
[0121] In some aspects, L1 measurement reports may be used to transmit CSI-RS, SSB or DMRS reference signal received power (RSRP) or signal to interference plus noise (SINR) measurements. For example, L1 measurement reports may be set to be periodic, aperiodic or semi-persistent. In some aspects, each CSI report setting may send up to four CSI-RS resource indicator (CRI) and / or SSB resource indicator (SSBRI) L1 measurement reports. For example, an L1 measurement report may include seven bits for the strongest measurement and four bits for each of the three remaining measurements (e.g., indicating a difference relative to the strongest measurement). In some aspects, multiple measurement reports may be transmitted in a single PUCCH or PUSCH (e.g., based on multiple report settings). For example, the number of measurement reports that may be sent in a single PUCCH or PUSCH may be limited by the PUCCH / PUSCH payload size. If the payload size is insufficient, one or more measurement reports with the lowest priority may be discarded.
[0122] Figure 7 7 is a diagram illustrating an example of a time window based periodic configuration 700 for a beam management procedure based on at least one DMRS and at least one of a CSI-RS or an SSB. For example, the aperiodic configuration 700 may be used for a hybrid beam management procedure. A time window 705 may be measured backward from a time associated with a periodic measurement report 750 sent on an uplink (UL) channel associated with a UE. Reference signals included in the time window 705 (e.g., received by the UE during the time window 705), such as a DMRS 730 and a periodic CSI-RS 740, may be used to perform a hybrid beam management procedure, as will be described in more detail below.
[0123] A base station (BS) may send downlink control information (DCI) 710. The DCI 710 may schedule a PDSCH 720. In some examples, the PDSCH 720 may include a DMRS 730 sent on beam 0. The DCI 710 may also schedule a non-periodic CSI-RS 740 on beams 1 and 2. In some aspects, the configuration information may indicate resources to be used for beam management procedures based on a time window 705. For example, resources (such as SSB resources, CSI-RS resources, or DMRS resources) included in the time window 705 may be used for beam management procedures. In some aspects, the start or end of the time window may correspond to the transmission of a measurement report. For example, the time window 705 may include a time length before the time when the measurement report 750 is to be sent. In some aspects, the start or end of the time window 705 may correspond to the reception of a grant. For example, the time window 705 may include a time length before the time when the UE receives the DCI 710 (or DCI grant). A grant is a communication (eg, DCI 710 ) that identifies resources that may be used for communication by the recipient of the grant.
[0124] In some aspects, the start or end of the time window 705 may correspond to a semi-persistent scheduling (SPS) opportunity. For example, the time window 705 may include a time length before or after the time when the UE or BS is to perform SPS transmission. The SPS opportunity is a resource configured to be available for the UE or BS to communicate in a recurring manner. The SPS allocation may be activated or deactivated. In some aspects, the start or end of the time window 705 may correspond to a control resource set (CORESET). For example, the time window 705 may include a time length before or after the time associated with the CORESET. In some aspects, the start or end of the time window 705 may correspond to the reception or transmission of a trigger signal. For example, the time window 705 may include a time length before or after the time when the UE receives the trigger signal. The trigger signal is a signal that triggers a beam management operation. The trigger signal may include RRC signaling, MAC signaling, DCI, reference signal, etc.
[0125] Figure 8 8 is a diagram illustrating an example of a configuration 800 for a hybrid reference signal beam management procedure. In some examples, the hybrid reference signal beam management procedure may be based on multiple reference signals. For example, the multiple reference signals may include at least a first reference signal of a first type and a second reference signal of a second type different from the first type. In an illustrative example, the first type of reference signal may be a DMRS, and the second type of reference signal may be at least one of a CSI-RS or an SSB.
[0126] For example, a base station (BS) may send downlink control information (DCI) 810. The DCI 810 may schedule a first PDSCH 822 and a second PDSCH 824. In some examples, the first PDSCH 822 may include a first DMRS 832 sent on beam 0 or be otherwise associated with the first DMRS. The second PDSCH 824 may include a second DMRS 834 sent on beam 1 or be otherwise associated with it. The DCI 810 may also schedule a set of CSI-RS 840 on beams 3 and 4. In some aspects, the DCI 810 may schedule a hybrid measurement report 850 on an uplink (UL) channel. In an illustrative example, the hybrid measurement report 850 may include a combination of DL RS measurement information and feedback information, as described in more detail below.
[0127] For example, the hybrid measurement report 850 may indicate first measurement information associated with the DMRS 832 and 834, second measurement information associated with the CSI-RS 840, and feedback information indicating a corresponding HARQ ACK / NACK for each of the DMRS 832 and 834 (e.g., a HARQ ACK / NACK for each of the PDSCHs 822, 824 associated with the corresponding DMRS 832, 834). In some aspects, the first measurement information and the second measurement information (e.g., associated with multiple DL RS instances including the DMRS 832, 834 and the CSI-RS 840) may also be referred to herein as beam information or hybrid beam information.
[0128] In one illustrative example, the hybrid measurement report 850 may be an L1 measurement report that also includes corresponding HARQ ACK / NACK feedback information. For example, HARQ ACK / NACK feedback information associated with the PDSCH 822, 824 used to transmit the DMRS 832, 834 may be included in (eg, piggybacked in) the L1 measurement report.
[0129] For example, Fig. 9 900 is a diagram illustrating an example of signaling associated with an L1 measurement report of a DMRS-based measurement, wherein the L1 measurement report further includes feedback information associated with the DMRS-based measurement. In some aspects, a measurement report including the L1 measurement report information and the feedback information may also be referred to as a "hybrid measurement report" or "L1 hybrid measurement report". In some examples, the feedback information may be HARQ feedback information 980 (e.g., HARQ ACK / NACK) included in or piggybacked on the L1 measurement report 950.
[0130] As shown, Fig. 9The UE 104 and BS 102 may be configured to perform beam management procedures. For example, the beam management procedures may be similar to those described above with respect to Figures 6 to 8 One or more of the beam management procedures illustrated and described are the same or similar. In some aspects, Fig. 9 Dashed boxes are shown to indicate optional operations.
[0131] In some examples, BS 102 may send configuration information 910 to UE 104. Configuration information 910 may indicate a configuration for DMRS-based hybrid L1 measurement reporting. In some aspects, configuration information 910 may include one or more radio resource control (RRC) parameters (e.g., triggering states, reporting settings, resource settings, etc.). In some aspects, configuration information 910 may indicate how UE 104 determines DMRS-based CSI measurements and reports DMRS-based CSI measurements in hybrid measurement reports 950.
[0132] In some aspects, the configuration information 910 may indicate that a DMRS-based measurement (e.g., an RSRP measurement and / or an SINR measurement) and another measurement (e.g., an RSRP measurement and / or an SINR measurement based on a CSI-RS and / or SSB) are to be included in the hybrid measurement report 950. For example, for aperiodic CSI, each CSI trigger state may be associated with one or more CSI report settings. Each CSI report setting may be linked to one or more periodic, semi-persistent, or aperiodic resource settings. For periodic or semi-persistent CSI, each CSI report setting may be linked to one or more periodic or semi-persistent resource settings. In some aspects, the configuration information 910 may indicate one or more DMRS to be included in the hybrid measurement report 950. For aperiodic CSI, the trigger state (e.g., each trigger state) configured using the CSI trigger state parameter may be associated with one or more CSI report settings. Each CSI report setting may be linked to one or more DMRS by an explicit indication in a trigger signal (e.g., a trigger message). For example, the trigger signal 920 may include RRC signaling, MAC signaling, DCI, a physical layer signal, etc. In some examples, each CSI report setting may be linked to one or more DMRS based on one or more rules (e.g., such as predefined rules). The one or more rules may be configured via higher layer signaling (e.g., such as RRC signaling). For example, the one or more rules may be configured as part of the configuration information 910 and / or via other RRC signaling.
[0133] In some aspects, a rule (e.g., a rule in one or more rules) may be based on a time reference. For example, the time reference may be a hybrid L1 measurement report, a grant, an SPS opportunity, a CORESET, a trigger signal (e.g., a trigger signal 920), etc. In some aspects, the rule may indicate that N DMRS symbols before and / or after the time reference will be used for the hybrid measurement report 950. In some aspects, the rule may indicate that the DMRS symbols included in N time slots or mini-time slots before and / or after the time reference will be used for the hybrid measurement report 950. The parameter N may be signaled in the configuration information 910 or may be signaled separately. In some aspects, a time slot may include a set number of OFDM symbols (e.g., 14 for a normal cyclic prefix, or 12 for an extended cyclic prefix). A mini-slot may be a group of two, four, or seven OFDM symbols and may be located asynchronously with the start of a time slot. In some aspects, a time period (e.g., a time slot or mini-slot) may include multiple DMRS.
[0134] In some aspects, if the time period includes multiple DMRS (e.g., Figure 8 ), the UE 104 may use (e.g., include in a hybrid measurement report 950) an average measurement, a best measurement, and / or a worst measurement associated with multiple DMRSs. The best measurement may be the measurement with the highest SINR or the highest RSRP, and the worst measurement may be the measurement with the lowest SINR or the lowest RSRP.
[0135] For example, Fig. 9 As shown, the hybrid measurement report 950 may include one or more RSRP / SINR measurements 970 (e.g., or indications thereof) associated with multiple reference signals received by the UE 104. In some examples, the RSRP / SINR measurements 970 may include one or more DMRS measurements 972 (e.g., or indications thereof), one or more CSI-RS measurements 974 (e.g., or indications thereof), and / or one or more SSB measurements 976 (e.g., or indications thereof). In some aspects, the resource settings of the configuration information 910 may indicate the DMRS for which the measurements (e.g., DMRS measurements 972) are to be included in the hybrid L1 measurement report 950. For example, the resource settings may be defined for the DMRS and may indicate any one of the above rules or a combination thereof.
[0136] As described above, in some examples, BS 102 may send trigger signal 920. Trigger signal 920 may cause UE 104 to determine measurements 970 for a set of reference signals 930 (e.g., based on configuration information 910). In some aspects, BS 102 may not trigger determination of measurements 970. For example, UE 104 may determine measurements 970 based on a periodic configuration (e.g., such as Figure 7The measurement 970 is determined using the periodic configuration shown.
[0137] BS 102 may send a set of reference signals 930 (e.g., multiple reference signals) to UE 104. The set of reference signals 930 may include one or more DMRS that may be sent on a beam set. In some aspects, the set of reference signals 930 may include one or more CSI-RS and / or one or more SSBs. In some examples, BS 102 may send the set of reference signals 930 based on configuration information 910. For example, BS 102 may send the set of reference signals 930 via a resource set indicated by configuration information 910.
[0138] UE 104 may generate and send a hybrid measurement report 950. Hybrid measurement report 950 may be based on the set of reference signals 930 and / or may be based on configuration information 910. In some examples, UE 104 may determine (e.g., perform) a set of measurements on the set of reference signals 930 as indicated by configuration information 910, and may send (e.g., in hybrid measurement report 950) information 970 indicating the set of reference signal measurements. In some examples, hybrid measurement report 950 may include one or more measurements 972 (e.g., RSRP measurements and / or SINR measurements) based on corresponding one or more DMRS. In some examples, hybrid measurement report 950 may also include one or more measurements 974 based on corresponding one or more CSI-RS and / or may include one or more measurements 976 based on corresponding one or more SSBs.
[0139] The hybrid measurement report 950 may include a DMRS resource indicator (DMRSRI) 962. For example, a DMRSRI (e.g., such as DMRSI 962) may indicate a DMRS for which a measurement (e.g., DMRS measurement 972) is reported. In some aspects, the DMRSRI 962 may be based on a quasi-co-located resource indicator (e.g., a quasi-co-located SSBRI or a quasi-co-located CRI). In some examples, the DMRS may be quasi-co-located with a source signal, which may be an SSB or a CSI-RS.
[0140] In some aspects, the DMRSRI 962 may be based on a preconfigured indicator. For example, the DMRSRI 962 may map a DMRS to a time relative to a time reference (e.g., a first index of a DMRS that is closest in time to the hybrid measurement report 950; a second index of a DMRS that is second closest in time to the hybrid measurement report 950; etc.). In some examples, the DMRSRI 962 may indicate a DMRS resource based on a layer identifier, a port identifier, and / or a TCI state associated with the DMRS resource.
[0141] In some aspects, the DMRSRI 962 may indicate a DMRS resource associated with the average measurement. For example, the average measurement may be determined as an average of a plurality of DMRS measurements 972 measured for a respective plurality of DMRS resources (e.g., across ports, across layers, across TRPs, etc.). In some examples, the DMRSRI 962 may indicate a plurality of DMRS resources used to determine the average measurement.
[0142] In some aspects, the hybrid measurement report may further indicate one or more of: a physical cell identifier (PCI) associated with a DMRS corresponding to a DMRS measurement 972 included in the measurement report, a CRI 964 associated with a CSI-RS corresponding to a CSI-RS measurement 974 included in the measurement report, and / or an SSBRI 966 associated with an SSB corresponding to an SSB measurement 976 included in the measurement report. In some examples, the hybrid measurement report may also additionally or alternatively indicate one or more of: a component carrier identifier (CC ID) indicating a component carrier on which the DMRS is transmitted, a bandwidth part identifier (BWP ID) indicating a bandwidth part on which the DMRS is transmitted, and / or a subband identifier (SBID) indicating a subband on which the DMRS is transmitted.
[0143] In some aspects, the hybrid measurement report 950 may indicate a group of measurements 970 (e.g., a plurality of measurements associated with a respective plurality of reference signals 930 received or measured by the UE 104). For example, the hybrid measurement report 950 may indicate a plurality of measurements grouped into one or more groups. A group of measurements may be based on, for example, reference signals sent by the same TRP, all CSI-RS measurements, all DMRS measurements, all reference signals in the same subband, all measurements associated with a particular reporting setting, etc. In some aspects, a group of measurements may be indicated by an absolute value of each measurement.
[0144] In some examples, the hybrid measurement report 950 may indicate a measurement for a particular measurement in a set of measurements (e.g., the best measurement, the strongest measurement, etc.), and may indicate one or more differential values identifying one or more remaining measurements in the set of measurements. For example, the hybrid measurement report 950 may include or indicate a measurement value for the best or strongest DMRS measurement, and may include or indicate differential values for any remaining DMRS measurements included in the set of DMRS measurements 972 (e.g., relative to the best DMRS measurement). In some aspects, the set of measurements may be based on reference signals associated with the same quasi-co-located source (e.g., SSB). In this case, the hybrid measurement report 950 may indicate an absolute value of the quasi-co-located source and one or more differential values of one or more remaining measurements in the set of measurements.
[0145] In some aspects, UE 104 and BS 102 may perform beam management 990 (e.g., hybrid beam management) based on hybrid measurement report 950. For example, BS 102 may configure communications with UE 104 based on hybrid measurement report 950. In some examples, BS 102 and / or UE 104 may select one or more beams based on hybrid measurement report 950. In some cases, BS 102 may trigger further measurements by UE 104 based on hybrid measurement report 950.
[0146] In one illustrative example, the systems and techniques described herein may be used to generate a measurement report that includes hybrid beam information (e.g., RSRP and / or SINR measurements or indications thereof) for multiple reference signals and includes feedback information associated with receiving at least a portion of the multiple reference signals. For example, a single measurement report may be generated to include both the hybrid beam information and the feedback information. In some aspects, the hybrid beam information may include measurement information for one or more DMRS and measurement information for one or more CSI-RS, SBS, or other reference signal types. The feedback information may be HARQ feedback information (e.g., ACK / NACK) associated with receiving and decoding a PDSCH associated with each of the one or more DMRSs.
[0147] As previously mentioned, in some examples, systems and techniques can generate a single hybrid measurement report based on combining or piggybacking HARQ feedback information on an L1 measurement report. Fig. 9 As shown, HARQ feedback (e.g., HARQ ACK / NACK) information 980 may be included in the hybrid L1 measurement report 950. The HARQ feedback information 980 may include a HARQ ACK or a HARQ NACK for each corresponding DMRS associated with the DMRS information 972. For example, if the hybrid L1 measurement report 950 is based on the UE 104 measuring the first DMRS and the second DMRS (e.g., Figure 8 834) shown in the figure, the HARQ feedback information 980 may include a corresponding first HARQ ACK / NACK and a second HARQ ACK / NACK. The first HARQ ACK / NACK is associated with the UE 104 receiving and decoding the first PDSCH 822 (e.g., which is associated with the first DMRS 832), wherein the HARQ ACK may indicate that the first PDSCH 822 is successfully received and decoded, and the HARQ NACK may indicate that the first PDSCH 822 is not successfully received or is not successfully decoded. Similarly, the second HARQ ACK / NACK described in the above example is associated with the UE 104 receiving and decoding the second PDSCH 824 (e.g., which is associated with the second DMRS 834).
[0148] In some examples, the systems and techniques can generate a hybrid measurement report that includes beam information and explicit HARQ feedback information. Fig.10 is a diagram illustrating an example hybrid measurement report 1050 including measurement information 1070 and HARQ feedback information 1080. In some aspects, the example hybrid measurement report 1050 may be used with Fig. 9 The hybrid measurement report 950 shown is the same or similar.
[0149] In some examples, the hybrid measurement report 1050 may include beam information and explicit HARQ feedback information. For example, the hybrid measurement report 1050 may include beam measurement information 1070 and HARQ feedback (e.g., ACK / NACK) information 1080. In some aspects, each respective entry included in the beam measurement information 1070 and the HARQ feedback information 1080 may be associated with a reference signal (RS) identified by a reference signal identifier (RS ID) 1060.
[0150] In one illustrative example, the hybrid measurement report 1050 may be based on Figure 8 1060. The hybrid measurement report 1050 may be generated based on the example reference signal beam configuration 800 shown. For example, the hybrid measurement report 1050 may be generated based on beam 0 and beam 1 associated with the corresponding DMRS and beam 1 and beam 2 associated with the corresponding CSI-RS. The DMRS associated with beam 0 may be identified by a first DMRSI included in RS ID 1060, and the DMRS associated with beam 1 may be identified by a second DMRSI included in RS ID 1060. In some examples, the DMRS beam 0 and / or DMRS beam 1 associated with the hybrid measurement report 1050 may be associated with Figure 8 DMRS beam 0 and DMRS beam 1 are shown to be the same or similar. In some aspects, the CSI-RS associated with beam 2 may be identified by a first CRI included in RS ID 1060, and the CSI-RS associated with beam 3 may be identified by a second CRI included in RS ID 1060. In some examples, CSI-RS beam 2 and / or CSI-RS beam 3 associated with hybrid measurement report 1050 may be identified by a first CRI included in RS ID 1060. Figure 8 The CSI-RS beam 2 and CSI-RS beam 3 shown are the same or similar.
[0151] In some examples, beam measurement information 1070 may include measurement values or measurement information for each beam identified by a corresponding entry of RS ID list (e.g., column) 1060. For example, beam measurement information 1070 associated with DMRS beam 0 may be an RSRP / SINR value measured for DMRS beam 0 (e.g., measured at UE 104 or by the UE). Beam measurement information 1070 associated with DMRS beam 1 may be a differential value between the RSRP / SINR value measured for DMRS beam 0 and the RSRP / SINR value measured for DMRS beam 1. Similarly, beam measurement information associated with CSI-RS beams 2 and 3 may both be differential values relative to the RSRP / SINR value measured for DMRS beam 0. In some aspects, the hybrid measurement report 1050 may include beam measurement information 1070, which includes one measured RSRP / SINR value, and the remaining entries included in the beam measurement information 1070 represent differential values calculated relative to the measured RSRP / SINR value. In an illustrative example, one measured RSRP / SINR value included in the beam information 1070 may be a measured RSRP / SINR value having a maximum absolute value (e.g., among all RSRP / SINR values measured for the multiple reference signals indicated in the hybrid measurement report 1050).
[0152] As shown, the hybrid measurement report 1050 also includes HARQ feedback information 1080. In one illustrative example, each HARQ ACK or NACK included in the HARQ feedback information 1080 may be associated with a corresponding reference signal identifier included in the RS ID list 1060. For example, recalling that a HARQ ACK / NACK may be generated for a DMRS (e.g., which is associated with or scheduled by a PDSCH), in some examples, each HARQ ACK or NACK included in the HARQ feedback information 1080 may be associated with a corresponding DMRS Identifier included in the RS ID list 1060. For example, the HARQ feedback information 1080 included in the hybrid measurement report 1050 does not include HARQ feedback information 1080 for CSI-RS beam 2 or CSI-RS beam 3 because neither CSI-RS beam is associated with a PDSCH for which a HARQ ACK / NACK is to be generated.
[0153] In some aspects, the HARQ feedback information 1080 may include one or more entries, where each entry is N bits. For example, for N=1 (e.g., a single bit), the HARQ ACK may be represented as "0" and the HARQ NACK may be represented as "1". In some examples, the HARQ ACK may be represented as "1" and the HARQ NACK may be represented as "0". In some cases, the hybrid measurement report 1050 may include HARQ feedback information 1080, where the HARQ feedback entry is N bits and N>1. For example, for HARQ feedback information 1080 including multi-bit entries (e.g., N>1), one bit in the multi-bit entry may represent (e.g., encode) a HARQ ACK or NACK (e.g., as described above), and the remaining bits in the multi-bit entry may represent (e.g., encode) additional HARQ feedback information. For example, the remaining bits in the multi-bit entry may encode additional feedback information (e.g., different from HARQ ACK or NACK) that may be included in an existing HARQ codebook.
[0154] In some examples, the systems and techniques can generate a hybrid measurement report that includes beam information and implicitly includes HARQ feedback information. For example, based on including the beam information of the given DMRS in the hybrid measurement report, a HARQ ACK can be implicitly signaled for a given DMRS (e.g., and / or a PDSCH associated with the given DMRS). Based on not including the beam information of the given DMRS in the hybrid measurement report, a HARQ NACK can be implicitly signaled for a given DMRS (e.g., and / or a PDSCH associated with the given DMRS).
[0155] Fig.11 1 is a diagram illustrating an example hybrid measurement report 1150 that includes measurement information 1170 and includes implicitly signaled HARQ feedback information 1180. In some aspects, hybrid measurement report 1150 may be generated based on the same DMRS beams 0 and 1 and CSI-RS beams 2 and 3 as hybrid measurement report 1050 (e.g., as described above with respect to Fig.10 In some examples, hybrid measurement report 1150 may be based on Figure 8 The example reference signal beam configuration 800 shown in FIG. 8 is generated.
[0156] In some examples, Fig.11 The RS ID list 1160 shown can be used with Fig.101060 and described above. In some examples, the measurement information 1170 included in the hybrid measurement report 1150 may be the same or similar to the measurement information 1070 included in the measurement report 1050. For example, the measurement information 1170 may include the measured RSRP / SINR value of DMRS beam 0 (e.g., based on DMRS beam 0 having the measured RSRP / SINR value with the largest absolute magnitude among the four measurements associated with the hybrid measurement report 1150) and the differential values of the remaining DMRS beam 1 and CSI-RS beams 2 and 3 (e.g., relative to the measured RSRP / SINR value f or the differential value of DMRS beam 0).
[0157] In one illustrative example, the hybrid measurement report 1150 may include HARQ feedback information (e.g., HARQ ACK and / or NACK) that is implicitly signaled (e.g., rather than explicitly included in the report, as in Fig.10 1050). In some cases, a HARQ ACK (e.g., ACK 1182 and / or ACK 1184) may be implicitly signaled in the RS ID list 1160 for a given entry based on including measurement information 1170 associated with the same given entry in the RS ID list 1160. In some aspects, a HARQ ACK (e.g., ACK 1182 and / or ACK 1184) for a given DMRSI may be implicitly signaled based on including measurement information 1170 associated with the given DMRSI included in the RS ID list 1160 (e.g., because a HARQ ACK / NACK may not be generated for reference signals other than DMRS).
[0158] For example, the hybrid measurement report 1150 is depicted as including measurement information 1170 associated with DMRS beam 0 (e.g., actual RSRP / SINR measurement values for DMRS beam 0) and including measurement information 1170 associated with DMRS beam 1 (e.g., the difference between the RSRP / SINR measurement values for DMRS beam 0 and the (smaller) RSRP / SINR measurement values for DMRS beam 1). Based on including the measurement information 1170 for both DMRS beam 0 and DMRS beam 1, the hybrid measurement report 1150 may implicitly signal HARQ ACK for both DMRS beam 0 and DMRS beam 1.
[0159] In some examples, a HARQ NACK may be implicitly signaled for a given DMRSI based on excluding (e.g., not including) measurement information 1170 associated with the given DMRSI included in the RS ID list 1160. For example, a hybrid measurement report 1150 may be generated to implicitly signal or indicate a HARQ NACK for a DMRSI associated with DMRS beam 1 by removing (e.g., excluding or not including) measurement information 1170 for DMRS beam 1 from the hybrid measurement report 1150. In such an example, the hybrid measurement report 1150 may include measurement information 1170 for DMRS beam 0 instead of DMRS beam 1. Based on receiving such a hybrid measurement report, the BS 102 may determine that a HARQ ACK has been signaled for DMRS beam 0 (e.g., which is associated with the measurement information 1170 in the hybrid measurement report), and may determine that a HARQ NACK has been signaled for DMRS beam 1 (e.g., which is not associated with any measurement information 1170 in the hybrid measurement report). In one illustrative example, the hybrid measurement report 1150 may implicitly signal a HARQ ACK for a given DMRSI and / or DMRS beam based on the presence of measurement information 1170 associated with the given DMRSI and / or DMRS beam. The hybrid measurement report 1150 may implicitly signal a HARQ NACK for a given DMRSI and / or DMRS beam based on the absence of any measurement information 1170 associated with the given DMRSI and / or DMRS beam.
[0160] In some aspects, implicit HARQ feedback information may be implicitly signaled based on a predetermined threshold. For example, the predetermined threshold may be signaled by a base station (e.g., BS 102) to a UE (e.g., UE 104). In some examples, the predetermined threshold may be configured in or for a UE (e.g., UE 104) by a base station (e.g., BS 102). For example, implicit HARQ feedback information may be sent based on a determination that a corresponding DMRS measurement (e.g., a DMRS RSRP / SINR value associated with a PDSCH for which HARQ feedback information is sent) is greater than a predetermined threshold.
[0161] In another aspect, the systems and techniques described herein may be used to generate a hybrid measurement report based on combining beam information with HARQ feedback information 980. For example, a set of HARQ ACK / NACKs (e.g., also referred to as HARQ feedback information or simply HARQ ACK) may be sent in a HARQ codebook or other feedback report that includes multiple HARQ ACKs. In some aspects, each HARQ ACK may be associated with an identifier of an associated DMRS to which the HARQ ACK corresponds (e.g., in the hybrid measurement report). For example, the identifier may be a DMRSI (e.g., such as DMRSI 962). In an illustrative example, the HARQ feedback information may be used to encode beam information for one or more reference signal beams (e.g., DMRS beams).
[0162] For example, HARQ feedback information may be generated to sort the individual HARQ ACKs based on the corresponding DMRS measurements (e.g., DMRS measurements 972) associated with each respective HARQ ACK. For example, HARQ feedback information may be generated based on the sorting of the HARQ ACKs (e.g., and the associated DMRS I) to implicitly include DMRS beam information. In some cases, the HARQ feedback information may be included in the HARQ codebook including the HARQ ACKs in the order of best to worst DMRS measurements (e.g., best DMRS RSRP / SINR to worst DMRS RSRP / SINR). As previously mentioned, in some aspects, beam management may be performed based on selecting the best or optimal beam for transmission between UE104 and BS102. Based on DMRS beam information implicitly included in the ordering of corresponding HARQ ACKs in the HARQ codebook (e.g., generated in response to receiving a PDSCH associated with the DMRS), BS 102 may determine or identify the best DMRS beam (e.g., best RSRP / SINR) for UE 104 based on the DMRSI associated with the first HARQ ACK entry included in the ordered HARQ codebook (e.g., or other ordered HARQ feedback information).
[0163] In some aspects, the HARQ feedback information may explicitly include or encode beam information. For example, the HARQ feedback information may represent a HARQ ACK / NACK using a single bit. Based on extending the HARQ feedback information to include multiple bits, the HARQ ACK / NACK may be encoded on one of the multiple bits, and the beam information (e.g., associated with the same DMRSI and / or DMRS beam as the HARQ ACK / NACK) may be encoded on one or more remaining bits of the multiple bits. In an illustrative example, the systems and techniques described herein may generate a hybrid measurement report of the HARQ feedback information that includes encoded beam information. For example, Fig.12 12 is a diagram illustrating an example hybrid measurement report 1250 including measurement information 1270 and multi-bit HARQ feedback information 1280. In some aspects, the hybrid measurement report 1250 may be based on the hybrid measurement report 1150 (e.g., as described above with respect to Fig.11 ) and / or hybrid measurement report 1050 (e.g., as described above with respect to Fig.10 In some examples, hybrid measurement report 1250 may be based on Figure 8 The example reference signal beam configuration 800 is shown for generation.
[0164] In some examples, Fig.12 The RS ID list 1260 shown in FIG. Fig.11 The RS ID list 1160 shown in FIG. 1160 is the same as or similar to the RS ID list 1160 shown in FIG. 1160 and / or may be the same as the RS ID list 1160 shown in FIG. Fig.10 , and the RS ID list 1060 shown in . In some examples, the measurement information 1270 includes measurement information entries for CSI-RS beam 2 and CSI-RS beam 3, but does not include measurement information entries for DMRS beam 0 and DMRS beam 1. As shown, the measurement information 1270 may include actual RSRP / SINR measurements of a non-DRMS reference signal having an RSRP / SINR with a maximum (e.g., maximum) absolute value, wherein the measurement information 1270 includes differential RSRP / SINR measurements of the remaining non-DMRS reference signals (e.g., differential values relative to the maximum absolute value non-DMRS reference signal). In some cases, the hybrid measurement report 1250 may be generated to include measurement information 1270 only for reference signals that are non-DMRS reference signals (e.g., CSI-RS, SSB, etc.). For example, based on the measurement information for the DMRS beam instead of being encoded in the multi-bit HARQ feedback information 1280, the measurement information 1270 may not include the measurement information (eg, absolute value or differential value) for the DMRS beam.
[0165] In one illustrative example, the hybrid measurement report 1250 may encode measurement information for a DMRS beam (e.g., DMRS beam 0 and DMRS beam 1) using one or more bits of the multi-bit HARQ feedback information entry 1280. For example, the multi-bit HARQ feedback information entry may each have N bits, where N>1. At least one of the N bits may be used to encode or indicate a HARQ ACK or HARQ NACK for a corresponding or associated DMRSI included in the RS ID list 1260. The remaining one or more bits of the N bits may be used to encode beam information for the same DMRSI (e.g., the N-bit HARQ feedback information 1280 may jointly encode HARQ ACK / NACK and measurement information for a given DMRS beam and / or DMRSI).
[0166] For example, Fig.12 As shown, for the example of N=2 (e.g., each HARQ feedback entry is 2 bits), the value "00" may represent HARQ NACK and a L1-RSRP measurement value less than a predetermined threshold; the value "01" may represent HARQ NACK and a L1-RSRP measurement value greater than or equal to a predetermined threshold; the value "10" may represent HARQ ACK and a L1-RSRP measurement value less than a predetermined threshold; the value "11" may represent HARQ ACK and a L1-RSRP measurement value greater than or equal to a predetermined threshold.
[0167] In some aspects, the predetermined threshold may be signaled or otherwise configured by the BS 102. For example, the predetermined threshold associated with encoding the DMRS L1-RSRP measurement information on the multi-bit HARQ feedback 1280 may be used by the BS 102 Fig. 9 , or configured in other ways using the configuration information 910 shown in the figure. In some examples, various other joint coding schemes different from the above examples may be used to generate multi-bit HARQ feedback information 1280. For example, "1" may represent HARQ ACK, and "0" may represent HARQ NACK, and / or the first bit position may represent L1-RSRP measurement information compared to a predetermined threshold, and the second bit position may represent HARQ ACK / NACK. In some aspects, more than 2 bits may be used to jointly encode HARQ ACK / NACK and L1-RSRP measurement information for a given DMRS beam and / or DMRSI. For example, two or more bits may be used to encode HARQ ACK / NACK and additional HARQ feedback information. Additionally or alternatively, two or more bits may be used to encode L1-RSRP measurement information (e.g., a full measurement value may be encoded, additional measurement information may be encoded, information comparing the L1-RSRP measurement value with multiple predetermined thresholds may be encoded, differential RSRP measurement values may be encoded, etc.).
[0168] In some aspects, the transmission time of the hybrid beam information report may be based on one or more (or all) of the type of hybrid beam information report, one or more UE capabilities and / or subcarrier spacing (SCS) information, etc. For example, a predetermined coding scheme may be used to signal the type of hybrid beam information report, one or more UE capabilities and / or SCS information from the UE 104 to the BS 102. In some examples, different types of additional information (e.g., such as those listed above) may be encoded based on the UE 104 transmitting the hybrid beam information report at a specific time interval value relative to the time when the UE 104 receives one or more reference signals for which the hybrid beam information report is generated. In some examples, different types of additional information (e.g., such as those listed above) may be encoded based on the UE 104 transmitting the hybrid beam information report within a specific time interval window (e.g., between a first time interval value and a second time interval value) relative to the time when the UE 104 receives one or more reference signals for which the hybrid beam information report is generated.
[0169] In some aspects, a base station (e.g., BS 102) may configure a UE (e.g., UE 104) or switch the UE between different types of hybrid beam reports. For example, UE 104 may switch between using a single hybrid beam report (e.g., such as those described herein, where HARQ feedback information is included in combination with hybrid beam information) and using separate reports for beam information and HARQ feedback information (e.g., a first report indicating beam information and a second report indicating HARQ feedback information).
[0170] In some examples, UE 104 can dynamically switch between transmitting the beam information and the HARQ feedback information in a single report or transmitting the beam information and the HARQ feedback information in two separate reports. For example, UE 104 can dynamically switch between a single hybrid beam report and two separate reports based on switching information signaled by BS 102 to UE 104. In some cases, the switching information can be based on Fig. 9 The configuration information 910 shown is signaled, included therein, or otherwise indicated. For example, the UE 104 may dynamically switch between using a single hybrid beam report or two separate reports based on the report setting information included in the configuration information 910 (e.g., as also described above). In some aspects, the UE 104 may determine whether to use a single hybrid beam report or two separate reports based on one or more DCIs (e.g., scheduling a PDSCH associated with the DMRS), wherein the one or more DCIs may include report type switching information determined by the BS 102.
[0171] In some aspects, the UE 104 may determine whether to use a single hybrid beam report or two separate reports based on a predetermined time threshold. In some examples, the predetermined time threshold may be configured and / or signaled by the BS 102. For example, the BS 102 may include one or more predetermined time thresholds in the configuration information 910 sent by the BS 102 to the UE 104. In some cases, the BS 102 may dynamically or semi-statically configure the UE 104 using one or more predetermined time thresholds. In some examples, the predetermined time threshold may indicate a maximum scheduling delay for which the UE 104 is allowed to use (e.g., allowed to send) a single hybrid beam report. The maximum scheduling delay indicated by the predetermined time threshold may be determined relative to the time at which the UE 104 receives one or more reference signals 930 (e.g., the time at which the UE receives a reference signal for which a single hybrid beam report will be generated).
[0172] For example, the UE 104 may determine a time interval between a first time (e.g., when the UE 104 receives one or more reference signals) and a second time (e.g., when the UE 104 will be able to send a single hybrid beam report in response). In some cases, the UE 104 may determine a time interval before or before the second time (e.g., the UE 104 may determine a time interval before the UE 104 has sent a single hybrid beam report). In an illustrative example, the UE 104 may compare the determined time interval with a predetermined time threshold. Based on a time interval less than the threshold, the UE 104 may continue to send a single hybrid beam report (e.g., in the future, a second time). Based on a time interval greater than the threshold, the UE 104 may fall back to sending beam information and HARQ feedback information in two separate reports.
[0173] In some aspects, when the UE 104 determines that the time interval is greater than the threshold (e.g., determines that sending a single hybrid beam report will introduce a scheduling delay exceeding a predetermined threshold), the UE 104 may send a separate HARQ feedback information report and a separate beam information report. In some examples, the UE 104 may send at least a separate HARQ feedback information report before the second time (e.g., if a single hybrid beam report is used, the UE 104 may send the HARQ feedback information in a separate report at an earlier time than the UE 104 would send the HARQ feedback information).
[0174] Fig.131300 is a flow chart illustrating an example of a process 1300 for wireless communication. The process 1300 may be performed by a first network node or by a component or system (e.g., a chipset) of the first network node. The first network node may be a UE (e.g., a mobile device such as a mobile phone, a network-connected wearable device such as a watch, an extended reality device such as a virtual reality (VR) device or an augmented reality (AR) device, a vehicle or a component or system of a vehicle, or other type of UE) or other type of network node. The operations of the process 1300 may be implemented as a processor (e.g., Fig.15 In addition, the system can be implemented, for example, through one or more antennas and / or one or more transceivers (e.g., Figure 2 , Figure 4 , Fig.15 An antenna and / or wireless transceiver (any of) is used to enable the wireless communication device to send and receive signals in process 1300.
[0175] At block 1302, the first network node (or a component thereof) may receive a reference signal. In some examples, the reference signal may include one or more of a synchronization signal block (SSB), a channel state information (CSI) reference signal (CSI-RS), a demodulation reference signal (DMRS), a positioning reference signal (PRS), a phase tracking reference signal (PTRS), or other reference signals.
[0176] At block 1304, the first network node (or a component thereof) may cause uplink information to be sent to the second network node. In some cases, the second network node may include a base station (e.g., a gNB, an eNB, or other base station), a portion of a base station (e.g., a CU, a DU, a RU, a RIC, or other portion of a base station having a decomposed architecture), or other types of network nodes. The uplink information indicates first measurement information associated with the reference signal and feedback information associated with the transmission. In some cases, the first measurement information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information. In some aspects, the feedback information is hybrid automatic repeat request (HARQ) feedback information. In some cases, the transmission associated with the feedback information is a PDSCH transmission. In some cases, the uplink information is a measurement report. The first network node (or a component thereof) may use a physical uplink shared channel (PUSCH), a physical uplink communication channel (PUCCH), a physical sidelink shared channel (PSSCH), and / or other channels to send the uplink information.
[0177] In some aspects, the uplink information includes first information indicating first measurement information and second information indicating feedback information. For example, the first information may be first RSRP information or first SINR information, and the second information may be one or more bits. Fig.10 Illustrative examples of these aspects are described (eg, with HARQ feedback information 1080 being explicitly signaled).
[0178] In some aspects, the uplink information includes first information indicating first measurement information and feedback information. Fig.11 Illustrative examples of these aspects are described (eg, with implicitly signaled HARQ feedback information 1180).
[0179] In some cases, the first network node (or a component thereof) may receive a second reference signal, wherein the second reference signal and the reference signal are of the same type. In this case, the uplink information may further include second information indicating second measurement information associated with the second reference signal of the same type. For example, the first measurement information may be first RSRP information or first SINR information, and the second measurement information may be second RSRP information or second SINR information.
[0180] In some aspects, the second information is a differential value relative to the first information. In other aspects, the first information is a single value. In an illustrative example, the first measurement information is a measurement value, and the feedback information is a confirmation, and the single value indicates the confirmation (e.g., as with respect to Fig.10 In another illustrative example, the feedback information is a confirmation, and the confirmation is implicitly based on a single value (e.g., as described with respect to Fig.11 In another illustrative example, the feedback information is a confirmation, and the single value indicates the first measurement information relative to the threshold value (e.g., as described with respect to Fig.12 In this example, a single value may include one or more bits (e.g., Fig.12 The first network node (or a component thereof) may receive information indicating a threshold from the second network node. In some cases, the single value is a first value or a second value, wherein the first value indicates that the first measurement information is greater than the threshold and the second value indicates that the first measurement information is less than the threshold (e.g., as described with respect to Fig.12 described above).
[0181] In another illustrative example, the feedback information is a negative confirmation, and the single value indicates the first measurement information relative to the threshold. In this example, the single value may be one or more bits. Additionally or alternatively, the single value may be a first value or a second value, wherein the first value indicates that the first measurement information is greater than the threshold and the second value indicates that the first measurement information is less than the threshold (e.g., as with respect to Fig.12 described above).
[0182] In some aspects, the first network node (or a component thereof) may send the uplink information based on a time offset. For example, as described herein, the time offset may be based on a capability associated with the first network node, a reporting type associated with the uplink information, a subcarrier spacing (SCS), any combination thereof, and / or other information. In some examples, the first network node (or a component thereof) may send the uplink information based on the time offset being less than a time threshold. In some cases, the first network node (or a component thereof) may receive information indicating the time threshold from the second network node.
[0183] Fig.14 1400 is a flow chart illustrating another example of a process 1400 for wireless communication. The process 1400 may be performed by a first network node or by a component or system (e.g., a chipset) of the first network node. The first network node may be a base station (e.g., a gNB, an eNB, or other base station), a portion of a base station (e.g., a CU, a DU, a RU, a RIC, or other portion of a base station with a disaggregated architecture), or other type of network node. The operations of the process 1400 may be implemented as a processor (e.g., Fig.15 In addition, the system can be implemented, for example, through one or more antennas and / or one or more transceivers (e.g., Figure 2 , Figure 4 , Fig.15 An antenna and / or wireless transceiver of any one of the foregoing) is used to enable the wireless communication device to send and receive signals in process 1400.
[0184] At block 1402, a first network node (or a component thereof) may receive a plurality of reference signals. The plurality of reference signals include a first reference signal of a first type and a second reference signal of a second type different from the first type. In some examples, the plurality of reference signals (including the first reference signal and the second reference signal) may include one or more of a synchronization signal block (SSB), a channel state information (CSI) reference signal (CSI-RS), a demodulation reference signal (DMRS), a positioning reference signal (PRS), a phase tracking reference signal (PTRS), or other reference signals.
[0185] At block 1404, the first network node (or a component thereof) may cause uplink information to be sent to a second network node. The second network node may include a UE (e.g., a mobile device such as a mobile phone, a network-connected wearable device such as a watch, an extended reality device such as a virtual reality (VR) device or an augmented reality (AR) device, a vehicle or a component or system of a vehicle, or other type of UE).
[0186] The uplink information indicates first measurement information associated with a first reference signal of a first type, second measurement information associated with a second reference signal of a second type, and feedback information associated with transmission. The first measurement information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second measurement information is second RSRP information or second SINR information. In some aspects, the feedback information is hybrid automatic repeat request (HARQ) feedback information. In some cases, the transmission associated with the feedback information is a PDSCH transmission. The first network node (or its component) may use PUSCH, PUCCH, PSSCH and / or other channels to send uplink information. In some aspects, the first network node (or its component) may generate measurement information based on multiple reference signals, and wherein the measurement information includes first measurement information and second measurement information. In some cases, the uplink information is a measurement report.
[0187] In some aspects, the uplink information includes first information indicating first measurement information, second information indicating second measurement information, and third information indicating feedback information. Fig.10 Illustrative examples of these aspects are described (e.g., with HARQ feedback information 1080 explicitly signaled). For example, the second information may be a differential value relative to the first information, and the third information is one or more bits. In some examples, the first information may include first RSRP information or first SINR information, and the second information may include second RSRP information or second SINR information.
[0188] In some aspects, the uplink information includes first information indicating the first measurement information and the feedback information and second information indicating the second measurement information. Fig.11 Illustrative examples of these aspects are described (e.g., with implicitly signaled HARQ feedback information 1180). For example, the second information may include a differential value relative to the first information. Similar to the previous example, the first information may include first RSRP information or first SINR information, and the second information may be second RSRP information or second SINR information.
[0189] In some aspects, the plurality of reference signals further include a third reference signal of the first type, and the uplink information further includes third information indicating third measurement information associated with the third reference signal of the first type. In such aspects, the third information may include a differential value relative to the first information.
[0190] In some aspects, the first information is a single value. In one illustrative example, the first measurement information is a measurement value and the feedback information is a confirmation, in which case the single value indicates the confirmation (e.g., Fig.10In another illustrative example, the feedback information is a confirmation, and the confirmation is implicitly based on a single value (e.g., as described with respect to Fig.11 In another illustrative example, the feedback information is a confirmation, and the single value indicates the first measurement information relative to the threshold value (e.g., as described with respect to Fig.12 In this example, a single value may include one or more bits (e.g., Fig.12 The first network node (or a component thereof) may receive information indicating a threshold from the second network node. In some cases, the single value is a first value or a second value, wherein the first value indicates that the first measurement information (e.g., the first RSRP information or the first SINR information) is greater than the threshold, and the second value indicates that the first measurement information is less than the threshold (e.g., as described with respect to Fig.12 described above).
[0191] In another illustrative example, the feedback information is a negative confirmation, and the single value indicates the first measurement information relative to the threshold. In this example, the single value may be one or more bits. Additionally or alternatively, the single value may be a first value or a second value, wherein the first value indicates that the first measurement information is greater than the threshold and the second value indicates that the first measurement information is less than the threshold (e.g., as with respect to Fig.12 described above).
[0192] In some aspects, the first network node (or a component thereof) may send the uplink information based on a time offset. For example, as described herein, the time offset may be based on a capability associated with the first network node, a reporting type associated with the uplink information, a subcarrier spacing (SCS), any combination thereof, and / or other information. In some examples, the first network node (or a component thereof) may send the uplink information based on the time offset being less than a time threshold. In some cases, the first network node (or a component thereof) may receive information indicating the time threshold from the second network node.
[0193] In some examples, the processes described herein (e.g., process 1300, process 1400, and / or other processes described herein) may be performed by a computing device or apparatus (e.g., a network node, such as a UE, a base station, a portion of a base station, etc.). For example, as described above, process 1300 may be performed by a UE, and process 1400 may be performed by a base station or a portion of a base station. In another example, process 1300 and / or process 1400 may be performed by a network node having Fig.15 For example, a computing device having the computing system 1500 shown in FIG. Fig.15 The wireless communication device of the computing architecture shown may include components of a UE and may implement Fig.13 and / or Fig.14 operation.
[0194] In some cases, a computing device or apparatus may include various components, such as one or more input devices, one or more output devices, one or more processors, one or more microprocessors, one or more microcomputers, one or more cameras, one or more sensors, and / or other components configured to perform the steps of the processes described herein. In some examples, a computing device may include a display, one or more network interfaces configured to communicate and / or receive data, any combination thereof, and / or other components. The one or more network interfaces may be configured to communicate and / or receive wired and / or wireless data, including data in accordance with 3G, 4G, 5G, and / or other cellular standards, data in accordance with WiFi (802.11x), data in accordance with Bluetooth TM Standard data, data according to the Internet Protocol (IP) standard and / or other types of data.
[0195] The components of the computing device may be implemented in circuits. For example, the components may include and / or be implemented using electronic circuits or other electronic hardware, which may include one or more programmable electronic circuits (e.g., microprocessors, graphics processing units (GPUs), digital signal processors (DSPs), central processing units (CPUs), and / or other suitable electronic circuits), and / or may include and / or be implemented using computer software, firmware, or any combination thereof for performing the various operations described herein.
[0196] Process 1300 and process 1400 are illustrated as logic flow diagrams, the operations of which represent sequences of operations that can be implemented in hardware, computer instructions, or a combination thereof. In the context of computer instructions, each operation represents a computer-executable instruction stored on one or more computer-readable storage media that, when executed by one or more processors, performs the described operation. Generally speaking, computer-executable instructions include routines, programs, objects, components, data structures, etc. that perform specific functions or implement specific data types. The order in which the operations are described is not intended to be construed as a limitation, and any number of the described operations may be combined in any order and / or in parallel to implement the process.
[0197] Additionally, process 1300, process 1400, and / or other processes described herein may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) that is executed together on one or more processors, by hardware, or a combination thereof. As noted above, the code may be stored on a computer-readable or machine-readable storage medium, for example, in the form of a computer program that includes a plurality of instructions that can be executed by one or more processors. The computer-readable or machine-readable storage medium may be non-transitory.
[0198] Fig.15 is a diagram illustrating an example of a system for implementing certain aspects of the present technology. Specifically, Fig.15 An example of a computing system 1500 is illustrated, which may be any computing device, for example, constituting an internal computing system, a remote computing system, a camera, or any components thereof, wherein the components of the system communicate with each other using a connection 1505. The connection 1505 may be a physical connection using a bus, or a direct connection into the processor 1510, such as in a chipset architecture. The connection 1505 may also be a virtual connection, a networked connection, or a logical connection.
[0199] In some aspects, computing system 1500 is a distributed system in which the functionality described in the present disclosure may be distributed within a data center, multiple data centers, a peer-to-peer network, etc. In some aspects, one or more of the system components represent a number of such components that each perform some or all of the functionality for which the component is described. In some aspects, a component may be a physical or virtual device.
[0200] The example system 1500 includes at least one processing unit (CPU or processor) 1510 and connections 1505 that communicatively couple various system components including system memory 1515, such as read only memory (ROM) 1520 and random access memory (RAM) 1525, to the processor 1510. The computing system 1500 may include a cache 1515 of high-speed memory directly connected to the processor 1510, in close proximity to the processor, or integrated as part of the processor.
[0201] Processor 1510 may include any general purpose processor and hardware or software services, such as services 1532, 1534, and 1536 stored in storage device 1530, that are configured to control processor 1510 as well as a dedicated processor where software instructions are incorporated into the actual processor design. Processor 1510 may essentially be a completely independent computing system containing multiple cores or processors, buses, memory controllers, caches, etc. Multi-core processors may be symmetric or asymmetric.
[0202] To enable user interaction, computing system 1500 includes input device 1545, which may represent any number of input mechanisms, such as a microphone for voice, a touch-sensitive screen for gesture or graphical input, a keyboard, a mouse, motion input, voice, etc. Computing system 1500 may also include output device 1535, which may be one or more of a plurality of output mechanisms. In some cases, a multimodal system may enable a user to provide multiple types of input / output to communicate with computing system 1500.
[0203] The computing system 1500 may include a communication interface 1540, which may generally govern and manage user input and system output. The communication interface may perform or facilitate receiving and / or sending wired or wireless communications using wired and / or wireless transceivers, including using an audio jack / plug, a microphone jack / plug, a Universal Serial Bus (USB) port / plug, an Apple TM Lightning TM Ports / plugs, Ethernet ports / plugs, Fiber optic ports / plugs, Dedicated wired ports / plugs, 3G, 4G, 5G and / or other cellular data network wireless signal delivery, Bluetooth TM Wireless signal transmission, Bluetooth TM Low energy (BLE) wireless signal transmission, IBEACON TMThe communication interface 1540 may also include one or more global navigation satellite system (GNSS) receivers or transceivers for determining the location of the computing system 1500 based on receiving one or more signals from one or more satellites associated with one or more GNSS systems. GNSS systems include, but are not limited to, the United States' Global Positioning System (GPS), Russia's Global Navigation Satellite System (GLONASS), China's BeiDou Navigation Satellite System (BDS), and Europe's Galileo GNSS. There is no restriction to operating on any particular hardware arrangement, and thus the base features herein may be easily substituted for improved hardware or firmware arrangements as they are developed.
[0204] The storage device 1530 may be a non-volatile and / or non-transitory and / or computer-readable memory device and may be a hard disk or other type of computer-readable medium that can store data accessible by a computer, such as a magnetic cassette, a flash memory card, a solid-state memory device, a digital versatile disk, a cassette, a floppy disk, a floppy disk, a hard disk, a magnetic tape, a magnetic stripe / magnetic stripe, any other magnetic storage medium, flash memory, a memristor memory, any other solid-state memory, a compact disk-read only memory (CD-ROM) optical disk, a rewritable compact disk (CD) optical disk, a digital video disk (DVD) optical disk, a Blu-ray disc (BDD) optical disk, a holographic optical disk, another optical medium, a secure digital (SD) card, a micro secure digital (microSD) card, a Memory Card, or a memory card. card, a smart card chip, an EMV chip, a subscriber identity module (SIM) card, a mini / micro / nano / pico SIM card, another integrated circuit (IC) chip / card, a random access memory (RAM), a static RAM (SRAM), a dynamic RAM (DRAM), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a flash EPROM (FLASH EPROM), a cache memory (e.g., a layer 1 (L1) cache, a layer 2 (L2) cache, a layer 3 (L3) cache, a layer 4 (L4) cache, a layer 5 (L5) cache, other (L#) cache), a resistive random access memory (RRAM / ReRAM), a phase change memory (PCM), a spin transfer torque RAM (STT-RAM), another memory chip or box, and / or a combination thereof.
[0205] Storage device 1530 may include software services, servers, services, etc., which, when the code defining such software is executed by processor 1510, causes the system to perform functions. In some aspects, hardware services that perform specific functions may include software components stored in a computer-readable medium connected to necessary hardware components (such as processor 1510, connection 1505, output device 1535, etc.) to perform functions. The term "computer-readable medium" includes, but is not limited to, portable or non-portable storage devices, optical storage devices, and various other media capable of storing, containing or carrying instructions and / or data. Computer-readable media may include non-transitory media in which data may be stored and does not include carrier waves and / or transient electronic signals propagated wirelessly or through wired connections. Examples of non-transitory media may include, but are not limited to, disks or tapes, optical storage media (such as compact disks (CDs) or digital versatile disks (DVDs)), flash memory, memory, or memory devices. A computer-readable medium may store thereon code and / or machine-executable instructions, which may represent a procedure, function, subprogram, program, routine, subroutine, module, software package, category, or any combination of instructions, data structures, or program statements. A code segment may be coupled to another code segment or a hardware circuit by passing and / or receiving information, data, independent variables, parameters, or memory contents. Information, independent variables, parameters, data, etc. may be passed, forwarded, or sent via any suitable means, including memory sharing, message passing, token passing, network sending, etc.
[0206] Specific details are provided in the above description to provide a thorough understanding of the various aspects and examples provided herein, but those skilled in the art will recognize that the application is not limited thereto. Thus, although the exemplary aspects of the present application have been described in detail herein, it is to be understood that each inventive concept can be implemented and adopted in various other ways, and the appended claims are not intended to be interpreted as including these variations, unless limited by the prior art. The various features and aspects of the above-mentioned applications can be used individually or in combination. In addition, without departing from the broader scope of the specification, the various aspects can be utilized in any number of environments and applications beyond those described herein. Therefore, the specification and the accompanying drawings should be considered as illustrative rather than restrictive. For the purpose of illustration, each method is described in a specific order. It should be appreciated that, in alternative aspects, each method can be performed in a different order than described.
[0207] For clarity of explanation, in some instances, the present technology may be presented as including separate functional blocks, which include devices, device components, steps or routines in the method embodied in software or a combination of hardware and software. Additional components other than those components shown in the drawings and / or described herein may be used. For example, circuits, systems, networks, processes and other components may be shown as components in block diagram form to avoid confusing these aspects in unnecessary details. In other instances, well-known circuits, processes, algorithms, structures and techniques may be shown without unnecessary details to avoid confusing various aspects.
[0208] In addition, it will be appreciated by those skilled in the art that the various exemplary logic blocks, modules, circuits and algorithmic steps described in conjunction with the various aspects disclosed herein can be implemented as electronic hardware, computer software or a combination of the two. In order to clearly illustrate this interchangeability of hardware and software, various exemplary components, blocks, modules, circuits and steps have been generally described above in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints proposed to the entire system. Those skilled in the art can implement the described functionality in different ways for each specific application, but such specific implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
[0209] Various aspects may be described above as a process or method, which is depicted as a flow chart, a flow diagram, a data flow diagram, a structure diagram, or a block diagram. Although a flow chart may describe an operation as a sequential process, many of the operations in the operation may be performed in parallel or concurrently. In addition, the order of the operations may be rearranged. The process is terminated when the operation of the process is completed, but the process may have additional steps not included in the accompanying drawings. The process may correspond to a method, a function, a procedure, a subroutine, a subprogram, etc. When a process corresponds to a function, the termination of the process may correspond to the function returning to the calling function or the main function.
[0210] The processes and methods according to the above examples can be implemented using stored computer executable instructions or otherwise available computer executable instructions from a computer readable medium. Such instructions may include, for example, instructions and data that configure a general-purpose computer, a special-purpose computer, or a processing device to perform a certain function or group of functions. Portions of the computer resources used may be accessed via a network. Computer executable instructions may be, for example, binary, intermediate format instructions such as assembly language, firmware, source code. Examples of computer readable media that can be used to store instructions, information used, and / or information created during the methods according to the described examples include disks or optical disks, flash memories, USB devices with non-volatile memory, networked storage devices, etc.
[0211] In some aspects, computer readable storage devices, media, and memories may include wired or wireless signals containing bit streams, etc. However, when referred to, non-transitory computer readable storage media specifically excludes media such as power consumption, carrier signals, electromagnetic waves, and signals themselves.
[0212] Those skilled in the art will appreciate that information and signals may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be mentioned throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof in some cases, depending in part on the specific application, in part on the desired design, in part on the corresponding technology, etc.
[0213] Various illustrative logic blocks, modules, and circuits described in conjunction with the various aspects disclosed herein may be implemented or executed using hardware, software, firmware, middleware, microcode, hardware description language, or any combination thereof, and may be implemented in any of a variety of form factors. When implemented in software, firmware, middleware, or microcode, program code or code segments (e.g., computer program products) for performing necessary tasks may be stored in a computer-readable or machine-readable medium. The processor may perform the necessary tasks. Examples of form factors include: laptops, smartphones, mobile phones, tablet devices, or other small form factor personal computers, personal digital assistants, rack-mounted devices, stand-alone devices, etc. The functions described herein may also be embodied in peripheral devices or add-in cards. By way of further example, such functionality may also be implemented on circuit boards in different chips or different processes executed on a single device.
[0214] The instructions, the media for conveying such instructions, the computing resources for executing them, and other structures for supporting such computing resources are example means for providing the functionality described in this disclosure.
[0215] The techniques described herein may also be implemented in electronic hardware, computer software, firmware, or any combination thereof. Such techniques may be implemented in any of a variety of devices, such as general-purpose computers, wireless communication devices, or integrated circuit devices with multiple uses, including applications in wireless communication devices, mobile phones, and other devices. Any features described as modules or components may be implemented together in an integrated logic device or separately as discrete but interoperable logic devices. If implemented in software, the techniques may be implemented at least in part by a computer-readable data storage medium including a program code, which includes instructions for executing one or more of the above-mentioned methods, algorithms, and / or operations when executed. A computer-readable data storage medium may form part of a computer program product, which may include packaging materials. A computer-readable medium may include a memory or data storage medium, such as a random access memory (RAM) (such as a synchronous dynamic random access memory (SDRAM)), a read-only memory (ROM), a non-volatile random access memory (NVRAM), an electrically erasable programmable read-only memory (EEPROM), a flash memory, a magnetic or optical data storage medium, and the like. Additionally or alternatively, the techniques may be implemented at least in part by a computer-readable communication medium that carries or communicates program code in the form of instructions or data structures and that can be accessed, read, and / or executed by a computer, such as a propagated signal or wave.
[0216] The program code may be executed by a processor, which may include one or more processors, such as one or more digital signal processors (DSPs), general-purpose microprocessors, application-specific integrated circuits (ASICs), field programmable logic arrays (FPGAs), or other equivalent integrated or discrete logic circuits. Such processors may be configured to perform any of the techniques described in this disclosure. A general-purpose processor may be a microprocessor; however, in an alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration. Therefore, the term "processor" as used herein may refer to any of the foregoing structures, any combination of the foregoing structures, or any other structure or device suitable for implementing the techniques described herein.
[0217] One of ordinary skill in the art will appreciate that the less than ("<") and greater than (">") symbols or terms used herein may be replaced by less than or equal to ("≤") and greater than or equal to ("≥") symbols, respectively, without departing from the scope of this specification.
[0218] Where a component is described as being “configured to” perform certain operations, such configuration may be achieved, for example, by designing electronic circuits or other hardware to perform the operations, by programming programmable electronic circuits (e.g., a microprocessor or other suitable electronic circuits) to perform the operations, or any combination thereof.
[0219] The phrases “coupled to” or “communicatively coupled to” refer to any component being physically connected directly or indirectly to another component, and / or any component being in communication with another component directly or indirectly (e.g., connected to the other component via a wired or wireless connection and / or other suitable communication interface).
[0220] Claim language or other language stating "at least one of" a set and / or "one or more of" a set indicates that one member of the set or multiple members of the set (in any combination) satisfies the claim. For example, claim language stating "at least one of A and B" or "at least one of A or B" means A, B, or A and B. In another example, claim language stating "at least one of A, B, and C" or "at least one of A, B, or C" means A, B, C, or A and B, or A and C, or B and C, A and B and C, or any repetition is information or data (e.g., A and A, B and B, C and C, A and A and B, etc.), or any other ordering, repetition, or combination of A, B, and C. The language "at least one of" a set and / or "one or more of" a set does not limit the set to the items listed in the set. For example, claim language stating "at least one of A and B" or "at least one of A or B" may mean A, B, or A and B, and may additionally include items not listed in the set of A and B.
[0221] Illustrative aspects of the present disclosure include:
[0222] Aspect 1. A first network node for wireless communication, the first network node comprising: at least one memory; and at least one processor, the at least one processor being coupled to the at least one memory, the at least one processor being configured to: receive a reference signal; and cause uplink information to be sent to a second network node, wherein the uplink information indicates: first measurement information associated with the reference signal; and feedback information associated with the sending.
[0223] Aspect 2. The first network node according to aspect 1, wherein the uplink information includes: first information indicating the first measurement information; and second information indicating the feedback information.
[0224] Aspect 3. The first network node according to aspect 2, wherein the first information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second information is one or more bits.
[0225] Aspect 4. The first network node according to any one of aspects 1 to 3, wherein the uplink information includes first information indicating the first measurement information and the feedback information.
[0226] Aspect 5. A first network node according to Aspect 4, wherein the at least one processor is configured to receive a second reference signal, wherein the second reference signal and the reference signal are of the same type, and wherein the uplink information also includes second information indicating second measurement information associated with the second reference signal of the same type.
[0227] Aspect 6. The first network node according to aspect 5, wherein the second information is a differential value relative to the first information.
[0228] Aspect 7. The first network node according to any one of aspects 5 or 6, wherein the first information is a single value.
[0229] Aspect 8. The first network node according to aspect 7, wherein the first measurement information is a measurement value, and the feedback information is an acknowledgement, and wherein the single value indicates the acknowledgement.
[0230] Aspect 9. The first network node according to aspect 7, wherein the feedback information is an acknowledgement, and wherein the acknowledgement is implicit based on the single value.
[0231] Aspect 10. The first network node according to aspect 7, wherein the feedback information is an acknowledgement, and wherein the single value indicates the first measurement information relative to a threshold value.
[0232] Aspect 11. The first network node according to aspect 10, wherein the single value is one or more bits.
[0233] Aspect 12. The first network node according to any one of aspects 10 or 11, wherein the at least one processor is configured to receive information indicating the threshold from the second network node.
[0234] Aspect 13. The first network node according to aspect 10, wherein the single value is a first value or a second value, wherein: the first value indicates that the first measurement information is greater than the threshold; and the second value indicates that the first measurement information is less than the threshold.
[0235] Aspect 14. The first network node according to aspect 13, wherein the first measurement information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second measurement information is second RSRP information or second SINR information.
[0236] Aspect 15. The first network node according to aspect 7, wherein the feedback information is a negative confirmation, and wherein the single value indicates the first measurement information relative to a threshold value.
[0237] Aspect 16. The first network node according to aspect 15, wherein the single value is one or more bits.
[0238] Aspect 17. The first network node according to aspect 15, wherein the single value is a first value or a second value, and wherein: the first value indicates that the first measurement information is greater than the threshold; and the second value indicates that the first measurement information is less than the threshold.
[0239] Aspect 18. The first network node according to any one of aspects 1 to 17, wherein the feedback information is hybrid automatic repeat request (HARQ) feedback information.
[0240] Aspect 19. The first network node according to any one of aspects 1 to 18, wherein the transmission is a PDSCH transmission.
[0241] Aspect 20. The first network node according to any one of aspects 1 to 19, wherein the uplink information is a measurement report.
[0242] Aspect 21. A first network node according to any one of Aspects 1 to 20, wherein: the first network node is a user equipment (UE); and the second network node is one of a base station, a next generation Node B (gNB) or an evolved Node B (eNB).
[0243] Aspect 22. The first network node according to any one of aspects 1 to 21, wherein the at least one processor is configured to cause the uplink information to be sent based on a time offset.
[0244] Aspect 23. A first network node according to aspect 22, wherein the time offset is based on one or more of a capability associated with the first network node, a reporting type associated with the uplink information, and a subcarrier spacing (SCS).
[0245] Aspect 24. The first network node according to any one of aspects 22 or 23, wherein the at least one processor is configured to cause the uplink information to be sent based on the time offset being less than a time threshold.
[0246] Aspect 25. The first network node according to aspect 24, wherein the at least one processor is configured to receive information indicative of the time threshold from the second network node.
[0247] Aspect 26. A first network node according to any one of aspects 1 to 25, wherein the at least one processor is configured to cause the uplink information to be sent using a physical uplink shared channel (PUSCH) or a physical uplink communication channel (PUCCH).
[0248] Aspect 27. The first network node according to any one of aspects 1 to 26, wherein the at least one processor is configured to cause the uplink information to be sent using a physical sidelink shared channel (PSSCH).
[0249] Aspect 28. A method for wireless communication at a first network node, the method comprising: receiving a reference signal; and sending uplink information to a second network node, wherein the uplink information indicates: first measurement information associated with the reference signal; and feedback information associated with the sending.
[0250] Aspect 29. The method according to aspect 28, wherein the uplink information includes: first information indicating the first measurement information; and second information indicating the feedback information.
[0251] Aspect 30. The method according to aspect 29, wherein the first information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second information is one or more bits.
[0252] Aspect 31. A method according to any one of aspects 28 to 30, wherein the uplink information includes first information indicating the first measurement information and the feedback information.
[0253] Aspect 32. The method according to Aspect 31 further includes: receiving a second reference signal, wherein the second reference signal and the reference signal are of the same type, and wherein the uplink information further includes second information indicating second measurement information associated with the second reference signal of the same type.
[0254] Aspect 33. The method according to aspect 32, wherein the second information is a differential value relative to the first information.
[0255] Aspect 34. A method according to any one of Aspects 32 or 33, wherein the first information is a single value.
[0256] Aspect 35. The method according to aspect 34, wherein the first measurement information is a measurement value, and the feedback information is a confirmation, and wherein the single value indicates the confirmation.
[0257] Aspect 36. The method according to aspect 34, wherein the feedback information is a confirmation, and wherein the confirmation is implicit based on the single value.
[0258] Aspect 37. The method according to aspect 34, wherein the feedback information is an acknowledgement, and wherein the single value indicates the first measurement information relative to a threshold value.
[0259] Aspect 38. The method according to aspect 37, wherein the single value is one or more bits.
[0260] Aspect 39. The method according to any one of aspects 37 or 38, the method further comprising: receiving information indicating the threshold from the second network node.
[0261] Aspect 40. The method according to aspect 37, wherein the single value is a first value or a second value, wherein: the first value indicates that the first measurement information is greater than the threshold; and the second value indicates that the first measurement information is less than the threshold.
[0262] Aspect 41. The method according to aspect 40, wherein the first measurement information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second measurement information is second RSRP information or second SINR information.
[0263] Aspect 42. The method according to aspect 34, wherein the feedback information is a negative confirmation, and wherein the single value indicates the first measurement information relative to a threshold value.
[0264] Aspect 43. The method according to aspect 42, wherein the single value is one or more bits.
[0265] Aspect 44. A method according to aspect 42, wherein the single value is a first value or a second value, and wherein: the first value indicates that the first measurement information is greater than the threshold; and the second value indicates that the first measurement information is less than the threshold.
[0266] Aspect 45. The method according to any one of aspects 28 to 44, wherein the feedback information is hybrid automatic repeat request (HARQ) feedback information.
[0267] Aspect 46. A method according to any one of aspects 28 to 45, wherein the transmission is a PDSCH transmission.
[0268] Aspect 47. A method according to any one of Aspects 28 to 46, wherein the uplink information is a measurement report.
[0269] Aspect 48. A method according to any one of Aspects 28 to 47, wherein: the first network node is a user equipment (UE); and the second network node is one of a base station, a next generation Node B (gNB) or an evolved Node B (eNB).
[0270] Aspect 49. A method according to any one of aspects 28 to 48, wherein the uplink information is sent based on a time offset.
[0271] Aspect 50. A method according to aspect 49, wherein the time offset is based on one or more of a capability associated with the first network node, a reporting type associated with the uplink information, and a subcarrier spacing (SCS).
[0272] Aspect 51. A method according to any one of aspects 49 or 50, wherein the uplink information is sent based on the time offset being less than a time threshold.
[0273] Aspect 52. The method according to aspect 51, the method further comprising: receiving information indicating the time threshold from the second network node.
[0274] Aspect 53. A method according to any one of aspects 28 to 52, wherein the uplink information is sent using a physical uplink shared channel (PUSCH) or a physical uplink communication channel (PUCCH).
[0275] Aspect 54. A method according to any one of aspects 28 to 53, wherein the uplink information is sent using a physical sidelink shared channel (PSSCH).
[0276] Aspect 55. A first network node for wireless communication, the first network node comprising: at least one memory; and at least one processor, the at least one processor being coupled to the at least one memory, the at least one processor being configured to: receive multiple reference signals, wherein the multiple reference signals include a first reference signal of a first type and a second reference signal of a second type different from the first type; and cause uplink information to be sent to a second network node, wherein the uplink information indicates: first measurement information associated with the first reference signal of the first type; second measurement information associated with the second reference signal of the second type; and feedback information associated with the sending.
[0277] Aspect 56. The first network node according to aspect 55, wherein the uplink information comprises: first information indicating the first measurement information; second information indicating the second measurement information; and third information indicating the feedback information.
[0278] Aspect 57. The first network node according to aspect 56, wherein the second information is a differential value relative to the first information, and wherein the third information is one or more bits.
[0279] Aspect 58. A first network node according to any one of aspects 56 or 57, wherein the first information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second information is second RSRP information or second SINR information.
[0280] Aspect 59. The first network node according to aspect 55, wherein the uplink information comprises: first information indicating the first measurement information and the feedback information; and second information indicating the second measurement information.
[0281] Aspect 60. The first network node according to aspect 59, wherein the second information is a differential value relative to the first information.
[0282] Aspect 61. A first network node according to any one of aspects 59 or 60, wherein the first information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second information is second RSRP information or second SINR information.
[0283] Aspect 62. A first network node according to any one of Aspects 55 to 61, wherein the multiple reference signals also include: a third reference signal of the first type, and wherein the uplink information also includes: third information indicating third measurement information associated with the third reference signal of the first type.
[0284] Aspect 63. The first network node according to aspect 62, wherein the third information is a differential value relative to the first information.
[0285] Aspect 64. The first network node according to aspect 59, wherein the first information is a single value.
[0286] Aspect 65. The first network node according to aspect 64, wherein the first measurement information is a measurement value and the feedback information is an acknowledgement, and wherein the single value indicates the acknowledgement.
[0287] Aspect 66. The first network node according to aspect 64, wherein the feedback information is an acknowledgement, and wherein the acknowledgement is implicit based on the single value.
[0288] Aspect 67. The first network node according to aspect 64, wherein the feedback information is an acknowledgement, and wherein the single value indicates the first measurement information relative to a threshold value.
[0289] Aspect 68. The first network node according to aspect 67, wherein the single value is one or more bits.
[0290] Aspect 69. The first network node according to any of aspects 67 or 68, wherein the at least one processor is configured to receive information indicative of the threshold from the second network node.
[0291] Aspect 70. The first network node according to aspect 67, wherein the single value is a first value or a second value, wherein: the first value indicates that the first measurement information is greater than the threshold; and the second value indicates that the first measurement information is less than the threshold.
[0292] Aspect 71. The first network node according to aspect 70, wherein the first measurement information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second measurement information is second RSRP information or second SINR information.
[0293] Aspect 72. The first network node according to aspect 64, wherein the feedback information is a negative acknowledgement, and wherein the single value indicates the first measurement information relative to a threshold value.
[0294] Aspect 73. The first network node according to aspect 72, wherein the single value is one or more bits.
[0295] Aspect 74. The first network node according to aspect 72, wherein the single value is a first value or a second value, wherein: the first value indicates that the first measurement information is greater than the threshold; and the second value indicates that the first measurement information is less than the threshold.
[0296] Aspect 75. The first network node according to any one of aspects 55 to 74, wherein the feedback information is hybrid automatic repeat request (HARQ) feedback information.
[0297] Aspect 76. The first network node according to any one of aspects 55 to 75, wherein the transmission is a PDSCH transmission.
[0298] Aspect 77. A first network node according to any one of aspects 55 to 76, wherein the at least one processor is configured to generate measurement information based on the multiple reference signals, and wherein the measurement information includes the first measurement information and the second measurement information.
[0299] Aspect 78. The first network node according to any one of aspects 55 to 77, wherein the uplink information is a measurement report.
[0300] Aspect 79. A first network node according to any one of Aspects 55 to 78, wherein: the first network node is a user equipment (UE); and the second network node is one of a base station, a next generation Node B (gNB) or an evolved Node B (eNB).
[0301] Aspect 80. The first network node according to any one of aspects 55 to 79, wherein the at least one processor is configured to cause the uplink information to be sent based on a time offset.
[0302] Aspect 81. A first network node according to aspect 80, wherein the time offset is based on one or more of a capability associated with the first network node, a reporting type associated with the uplink information, and a subcarrier spacing (SCS).
[0303] Aspect 82. The first network node according to any one of aspects 80 or 81, wherein the at least one processor is configured to cause the uplink information to be sent based on the time offset being less than a time threshold.
[0304] Aspect 83. The first network node according to aspect 82, wherein the at least one processor is configured to receive information indicative of the time threshold from the second network node.
[0305] Aspect 84. A first network node according to any one of aspects 55 to 83, wherein the at least one processor is configured to cause the uplink information to be sent using a physical uplink shared channel (PUSCH) or a physical uplink communications channel (PUCCH).
[0306] Aspect 85. The first network node according to any one of aspects 55 to 84, wherein the at least one processor is configured to cause the uplink information to be sent using a physical sidelink shared channel (PSSCH).
[0307] Aspect 86. A method for performing wireless communications at a first network node, the method comprising: receiving multiple reference signals, wherein the multiple reference signals include a first reference signal of a first type and a second reference signal of a second type different from the first type; and sending uplink information to a second network node, wherein the uplink information indicates: first measurement information associated with the first reference signal of the first type; second measurement information associated with the second reference signal of the second type; and feedback information associated with the sending.
[0308] Aspect 87. A method according to aspect 86, wherein the uplink information includes: first information indicating the first measurement information; second information indicating the second measurement information; and third information indicating the feedback information.
[0309] Aspect 88. The method according to aspect 87, wherein the second information is a differential value relative to the first information, and wherein the third information is one or more bits.
[0310] Aspect 89. A method according to any one of Aspects 87 or 88, wherein the first information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second information is second RSRP information or second SINR information.
[0311] Aspect 90. The method according to aspect 86, wherein the uplink information includes first information indicating the first measurement information and the feedback information; and second information indicating the second measurement information.
[0312] Aspect 91. The method according to Aspect 90, wherein the second information is a differential value relative to the first information.
[0313] Aspect 92. A method according to any one of Aspects 90 or 91, wherein the first information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second information is second RSRP information or second SINR information.
[0314] Aspect 93. A method according to any one of Aspects 86 to 92, wherein the multiple reference signals also include: a third reference signal of the first type, and wherein the uplink information also includes: third information indicating third measurement information associated with the third reference signal of the first type.
[0315] Aspect 94. The method according to Aspect 93, wherein the third information is a differential value relative to the first information.
[0316] Aspect 95. The method according to aspect 90, wherein the first information is a single value.
[0317] Aspect 96. The method according to aspect 95, wherein the first measurement information is a measurement value, and the feedback information is a confirmation, and wherein the single value indicates the confirmation.
[0318] Aspect 97. The method according to aspect 95, wherein the feedback information is a confirmation, and wherein the confirmation is implicit based on the single value.
[0319] Aspect 98. The method according to aspect 95, wherein the feedback information is an acknowledgement, and wherein the single value indicates the first measurement information relative to a threshold value.
[0320] Aspect 99. The method according to aspect 98, wherein the single value is one or more bits.
[0321] Aspect 100. The method according to any one of aspects 98 or 99, the method further comprising: receiving information indicating the threshold from the second network node.
[0322] Aspect 101. A method according to aspect 98, wherein the single value is a first value or a second value, wherein: the first value indicates that the first measurement information is greater than the threshold; and the second value indicates that the first measurement information is less than the threshold.
[0323] Aspect 102. The method according to aspect 101, wherein the first measurement information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second measurement information is second RSRP information or second SINR information.
[0324] Aspect 103. The method according to aspect 95, wherein the feedback information is a negative confirmation, and wherein the single value indicates the first measurement information relative to a threshold value.
[0325] Aspect 104. The method according to aspect 103, wherein the single value is one or more bits.
[0326] Aspect 105. The method according to aspect 103, wherein the single value is a first value or a second value, wherein: the first value indicates that the first measurement information is greater than the threshold; and the second value indicates that the first measurement information is less than the threshold.
[0327] Aspect 106. The method according to any one of aspects 86 to 105, wherein the feedback information is hybrid automatic repeat request (HARQ) feedback information.
[0328] Aspect 107. A method according to any one of aspects 86 to 106, wherein the transmission is a PDSCH transmission.
[0329] Aspect 108. The method according to any one of aspects 86 to 107, the method further comprising: generating measurement information based on the plurality of reference signals, and wherein the measurement information comprises the first measurement information and the second measurement information.
[0330] Aspect 109. A method according to any one of aspects 86 to 108, wherein the uplink information is a measurement report.
[0331] Aspect 110. A method according to any one of aspects 86 to 109, wherein: the first network node is a user equipment (UE); and the second network node is one of a base station, a next generation Node B (gNB) or an evolved Node B (eNB).
[0332] Aspect 111. A method according to any one of aspects 86 to 110, wherein the uplink information is sent based on a time offset.
[0333] Aspect 112. A method according to aspect 111, wherein the time offset is based on one or more of a capability associated with the first network node, a reporting type associated with the uplink information, and a subcarrier spacing (SCS).
[0334] Aspect 113. A method according to any one of aspects 111 or 112, wherein the uplink information is sent based on the time offset being less than a time threshold.
[0335] Aspect 114. The method according to aspect 113, the method further comprising: receiving information indicating the time threshold from the second network node.
[0336] Aspect 115. A method according to any one of aspects 86 to 114, wherein the uplink information is sent using a physical uplink shared channel (PUSCH) or a physical uplink communication channel (PUCCH).
[0337] Aspect 116. A method according to any one of aspects 86 to 115, wherein the uplink information is sent using a physical sidelink shared channel (PSSCH).
[0338] Aspect 117. A non-transitory computer-readable medium having instructions thereon, which when executed by one or more processors cause the one or more processors to perform operations according to any one of aspects 28 to 54.
[0339] Aspect 118. An apparatus for wireless communications, the apparatus comprising one or more components for performing the operations of any one of aspects 86 to 116.
[0340] Aspect 119. A non-transitory computer-readable medium having instructions thereon, which when executed by one or more processors cause the one or more processors to perform operations according to any one of aspects 86 to 116.
[0341] Aspect 120. An apparatus for wireless communications, the apparatus comprising one or more components for performing the operations of any one of aspects 28 to 54.
[0342] Aspect 121. A method for performing wireless communications at a first network node, the method comprising: sending a reference signal to a second network node; and receiving uplink information from the second network node, wherein the uplink information indicates: first measurement information associated with the reference signal; and feedback information associated with the sending.
[0343] Aspect 122. The method according to aspect 121, wherein the uplink information comprises: first information indicating the first measurement information; and second information indicating the feedback information.
[0344] Aspect 123. The method according to aspect 122, wherein the first information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second information is one or more bits.
[0345] Aspect 124. A method according to any one of aspects 121 to 123, wherein the uplink information includes first information indicating the first measurement information and the feedback information.
[0346] Aspect 125. The method according to Aspect 124 further includes: sending a second reference signal, wherein the second reference signal and the reference signal are of the same type, and wherein the uplink information also includes second information indicating second measurement information associated with the second reference signal of the same type.
[0347] Aspect 126. The method according to aspect 125, wherein the second information is a differential value relative to the first information.
[0348] Aspect 127. A method according to any one of Aspects 125 or 126, wherein the first information is a single value.
[0349] Aspect 128. The method according to aspect 127, wherein the first measurement information is a measurement value, and the feedback information is a confirmation, and wherein the single value indicates the confirmation.
[0350] Aspect 129. The method according to aspect 127, wherein the feedback information is a confirmation, and wherein the confirmation is implicit based on the single value.
[0351] Aspect 130. The method according to aspect 127, wherein the feedback information is an acknowledgement, and wherein the single value indicates the first measurement information relative to a threshold value.
[0352] Aspect 131. The method according to aspect 130, wherein the single value is one or more bits.
[0353] Aspect 132. The method according to any one of aspects 130 or 131, the method further comprising: sending information indicating the threshold to the second network node.
[0354] Aspect 133. A method according to aspect 130, wherein the single value is a first value or a second value, wherein: the first value indicates that the first measurement information is greater than the threshold; and the second value indicates that the first measurement information is less than the threshold.
[0355] Aspect 134. A method according to aspect 133, wherein the first measurement information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second measurement information is second RSRP information or second SINR information.
[0356] Aspect 135. The method according to aspect 127, wherein the feedback information is a negative confirmation, and wherein the single value indicates the first measurement information relative to a threshold value.
[0357] Aspect 136. A method according to aspect 135, wherein the single value is one or more bits.
[0358] Aspect 137. A method according to aspect 135, wherein the single value is a first value or a second value, and wherein: the first value indicates that the first measurement information is greater than the threshold; and the second value indicates that the first measurement information is less than the threshold.
[0359] Aspect 138. The method according to any one of aspects 121 to 137, wherein the feedback information is hybrid automatic repeat request (HARQ) feedback information.
[0360] Aspect 139. A method according to any one of aspects 121 to 138, wherein the transmission is a PDSCH transmission.
[0361] Aspect 140. A method according to any one of aspects 121 to 139, wherein the uplink information is a measurement report.
[0362] Aspect 141. A method according to any one of Aspects 121 to 140, wherein: the first network node is one of a base station, a next generation Node B (gNB) or an evolved Node B (eNB); and the second network node is a user equipment (UE).
[0363] Aspect 142. A method according to any one of aspects 121 to 141, wherein the uplink information is sent based on a time offset.
[0364] Aspect 143. A method according to aspect 142, wherein the time offset is based on one or more of a capability associated with the second network node, a reporting type associated with the uplink information, and a subcarrier spacing (SCS).
[0365] Aspect 144. A method according to any one of aspects 142 or 143, wherein the uplink information is sent based on the time offset being less than a time threshold.
[0366] Aspect 145. The method according to aspect 144, the method further comprising: sending information indicating the time threshold to the second network node.
[0367] Aspect 146. A method according to any one of Aspects 121 to 145, wherein the uplink information is received using a physical uplink shared channel (PUSCH) or a physical uplink communication channel (PUCCH).
[0368] Aspect 147. A method according to any one of Aspects 121 to 146, wherein the uplink information is received using a physical sidelink shared channel (PSSCH).
[0369] Aspect 148. A method for performing wireless communications at a first network node, the method comprising: sending multiple reference signals to a second network node, wherein the multiple reference signals include a first reference signal of a first type and a second reference signal of a second type different from the first type; and receiving uplink information from the second network node, wherein the uplink information indicates: first measurement information associated with the first reference signal of the first type; second measurement information associated with the second reference signal of the second type; and feedback information associated with the sending.
[0370] Aspect 149. A method according to aspect 148, wherein the uplink information includes: first information indicating the first measurement information; second information indicating the second measurement information; and third information indicating the feedback information.
[0371] Aspect 150. The method according to aspect 149, wherein the second information is a differential value relative to the first information, and wherein the third information is one or more bits.
[0372] Aspect 151. A method according to any one of aspects 149 or 150, wherein the first information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second information is second RSRP information or second SINR information.
[0373] Aspect 152. The method according to aspect 148, wherein the uplink information includes first information indicating the first measurement information and the feedback information; and second information indicating the second measurement information.
[0374] Aspect 153. The method according to Aspect 152, wherein the second information is a differential value relative to the first information.
[0375] Aspect 154. A method according to any one of aspects 152 or 153, wherein the first information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second information is second RSRP information or second SINR information.
[0376] Aspect 155. A method according to any one of Aspects 148 to 154, wherein the multiple reference signals also include: a third reference signal of the first type, and wherein the uplink information also includes: third information indicating third measurement information associated with the third reference signal of the first type.
[0377] Aspect 156. The method according to aspect 155, wherein the third information is a differential value relative to the first information.
[0378] Aspect 157. The method according to aspect 152, wherein the first information is a single value.
[0379] Aspect 158. The method according to aspect 157, wherein the first measurement information is a measurement value, and the feedback information is a confirmation, and wherein the single value indicates the confirmation.
[0380] Aspect 159. The method according to aspect 157, wherein the feedback information is a confirmation, and wherein the confirmation is implicit based on the single value.
[0381] Aspect 160. The method according to aspect 157, wherein the feedback information is an acknowledgement, and wherein the single value indicates the first measurement information relative to a threshold value.
[0382] Aspect 161. A method according to aspect 160, wherein the single value is one or more bits.
[0383] Aspect 162. The method according to any one of aspects 160 or 161, the method further comprising: sending information indicating the threshold to the second network node.
[0384] Aspect 163. A method according to aspect 160, wherein the single value is a first value or a second value, wherein: the first value indicates that the first measurement information is greater than the threshold; and the second value indicates that the first measurement information is less than the threshold.
[0385] Aspect 164. A method according to aspect 163, wherein the first measurement information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second measurement information is second RSRP information or second SINR information.
[0386] Aspect 165. The method according to aspect 157, wherein the feedback information is a negative confirmation, and wherein the single value indicates the first measurement information relative to a threshold value.
[0387] Aspect 166. A method according to aspect 165, wherein the single value is one or more bits.
[0388] Aspect 167. A method according to aspect 165, wherein the single value is a first value or a second value, wherein: the first value indicates that the first measurement information is greater than the threshold; and the second value indicates that the first measurement information is less than the threshold.
[0389] Aspect 168. The method according to any one of aspects 148 to 167, wherein the feedback information is hybrid automatic repeat request (HARQ) feedback information.
[0390] Aspect 169. A method according to any one of aspects 148 to 168, wherein the transmission is a PDSCH transmission.
[0391] Aspect 170. A method according to any one of aspects 148 to 169, wherein the uplink information is a measurement report.
[0392] Aspect 171. A method according to any one of Aspects 148 to 170, wherein: the first network node is one of a base station, a next generation Node B (gNB) or an evolved Node B (eNB); and the second network node is a user equipment (UE).
[0393] Aspect 172. A method according to any one of aspects 148 to 171, wherein the uplink information is sent based on a time offset.
[0394] Aspect 173. A method according to aspect 172, wherein the time offset is based on one or more of a capability associated with the second network node, a reporting type associated with the uplink information, and a subcarrier spacing (SCS).
[0395] Aspect 174. A method according to any one of aspects 172 or 173, wherein the uplink information is sent based on the time offset being less than a time threshold.
[0396] Aspect 175. The method according to aspect 174, the method further comprising: sending information indicating the time threshold to the second network node.
[0397] Aspect 176. A method according to any one of Aspects 148 to 175, wherein the uplink information is received using a physical uplink shared channel (PUSCH) or a physical uplink communication channel (PUCCH).
[0398] Aspect 177. A method according to any one of Aspects 148 to 176, wherein the uplink information is received using a physical sidelink shared channel (PSSCH).
[0399] Aspect 178. A non-transitory computer-readable medium having instructions thereon, which when executed by one or more processors cause the one or more processors to perform operations according to any one of aspects 121 to 147.
[0400] Aspect 179. An apparatus for wireless communications, the apparatus comprising one or more components for performing the operations of any one of aspects 121 to 147.
[0401] Aspect 180. A non-transitory computer-readable medium having instructions thereon, which when executed by one or more processors cause the one or more processors to perform operations according to any one of aspects 148 to 177.
[0402] Aspect 181. An apparatus for wireless communications, the apparatus comprising one or more components for performing the operations of any one of aspects 148 to 177.
Claims
1. A first network node for wireless communication, the first network node comprising: at least one memory; and at least one processor, the at least one processor coupled to the at least one memory, the at least one processor configured to: receiving a reference signal; as well as causing uplink information to be sent to the second network node, wherein the uplink information indicates: first measurement information associated with the reference signal; and Feedback information associated with the send.
2. The first network node according to claim 1, wherein the uplink information comprises: first information indicating the first measurement information; and Second information indicating the feedback information.
3. The first network node according to claim 2, wherein the first information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second information is one or more bits. 4 . The first network node according to claim 1 , wherein the uplink information comprises first information indicating the first measurement information and the feedback information.
5. The first network node according to claim 4, wherein the at least one processor is configured to receive a second reference signal, wherein the second reference signal and the reference signal are of the same type, and wherein the uplink information also includes second information indicating second measurement information associated with the second reference signal of the same type. The first network node according to claim 5 , wherein the second information is a differential value relative to the first information. The first network node according to claim 5 , wherein the first information is a single value.
8. The first network node according to claim 7, wherein the first measurement information is a measurement value and the feedback information is an acknowledgement, and wherein the single value indicates the acknowledgement.
9. The first network node of claim 7, wherein the feedback information is an acknowledgement, and wherein the acknowledgement is implicit based on the single value.
10. The first network node according to claim 7, wherein the feedback information is an acknowledgement, and wherein the single value indicates the first measurement information relative to a threshold value. The first network node according to claim 10 , wherein the single value is one or more bits.
12. The first network node of claim 10, wherein the at least one processor is configured to receive information indicative of the threshold from the second network node.
13. The first network node of claim 10, wherein the single value is a first value or a second value, wherein: The first value indicates that the first measurement information is greater than the threshold; and The second value indicates that the first measurement information is less than the threshold.
14. The first network node according to claim 13, wherein the first measurement information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second measurement information is second RSRP information or second SINR information.
15. The first network node according to claim 7, wherein the feedback information is a negative acknowledgement, and wherein the single value indicates the first measurement information relative to a threshold value.
16. The first network node of claim 15, wherein the single value is one or more bits.
17. The first network node of claim 15, wherein the single value is a first value or a second value, and wherein: The first value indicates that the first measurement information is greater than the threshold; and The second value indicates that the first measurement information is less than the threshold.
18. The first network node of claim 1, wherein the feedback information is hybrid automatic repeat request (HARQ) feedback information.
19. The first network node of claim 1, wherein the transmission is a PDSCH transmission.
20. The first network node of claim 1, wherein the uplink information is a measurement report.
21. The first network node according to claim 1, wherein: The first network node is a user equipment (UE); and The second network node is one of a base station, a next generation Node B (gNB) or an evolved Node B (eNB).
22. The first network node of claim 1, wherein the at least one processor is configured to cause the uplink information to be sent based on a time offset.
23. The first network node of claim 22, wherein the time offset is based on one or more of a capability associated with the first network node, a reporting type associated with the uplink information, and a subcarrier spacing (SCS).
24. The first network node of claim 22, wherein the at least one processor is configured to cause the uplink information to be sent based on the time offset being less than a time threshold.
25. The first network node of claim 24, wherein the at least one processor is configured to receive information indicative of the time threshold from the second network node.
26. The first network node of claim 1, wherein the at least one processor is configured to cause the uplink information to be sent using a physical uplink shared channel (PUSCH) or a physical uplink communications channel (PUCCH).
27. The first network node of claim 1, wherein the at least one processor is configured to cause the uplink information to be sent using a physical sidelink shared channel (PSSCH).
28. A method of wireless communication performed by a first network node, the method comprising: receiving a reference signal; as well as Sending uplink information to the second network node, wherein the uplink information indicates: first measurement information associated with the reference signal; as well as Feedback information associated with the send.
29. The method of claim 28, wherein the uplink information comprises: first information indicating the first measurement information; as well as Second information indicating the feedback information.
30. The method of claim 29, wherein the first information is first reference signal received power (RSRP) information or first signal to interference plus noise ratio (SINR) information, and the second information is one or more bits.