Pairing of synchronization signals for tracking and measurement

Abstract

The present disclosure provides systems, methods, and devices for wireless communication that support synchronization signal pairing. In a first aspect, a first network node includes a memory and at least one processor coupled to the memory, where the at least one processor is configured to: receive an indication of a first number of beams from a second network node; receiving bitmap information from the second network node, the bitmap information comprising a first bitmap for a first beam of the first number of beams and a second bitmap for a second beam of the first number of beams; and generating first measurement information based on the bitmap information. Other aspects and features are also claimed and described.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. Patent Application No. 18 / 363,410, filed on August 1, 2023, entitled “PAIRING OF SYNCHRONIZATION SIGNALS FOR TRACKING AND MEASUREMENT,” and also claims the benefit of U.S. Provisional Patent Application No. 63 / 370,302, filed on August 3, 2022, entitled “PAIRING OF SYNCHRONIZATION SIGNALS FOR TRACKING AND MEASUREMENT,” the entirety of which is expressly incorporated herein by reference. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communication systems, and more particularly, to synchronization signal measurements. Certain features may enable and provide improved communications, including synchronization signal pairing. Background Art

[0004] Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcast, etc. These wireless networks may be multiple-access networks capable of supporting multiple users by sharing the available network resources. Such networks may be multiple-access networks capable of supporting communication for multiple users by sharing the available network resources.

[0005] A wireless communication network may include several components. These components may include wireless communication devices, such as a base station (or node B) that may support communication for several user equipments (UEs). The UE may communicate with the base station via a downlink and an uplink. The downlink (or forward link) refers to the communication link from the base station to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the base station.

[0006] A base station may send data and control information to a UE on a downlink, or receive data and control information from a UE on an uplink. On the downlink, transmissions from a base station may encounter interference caused by transmissions from neighboring base stations or from other wireless radio frequency (RF) transmitters. On the uplink, transmissions from a UE may encounter interference caused by uplink transmissions from other UEs communicating with neighboring base stations or from other wireless RF transmitters. Such interference may degrade performance on both the downlink and uplink.

[0007] As the demand for mobile broadband access continues to grow, the potential for interference and network congestion also grows as more UEs access long-range wireless communication networks and more short-range wireless systems are deployed in communities. Research and development continue to advance wireless technologies to not only meet the growing demand for mobile broadband access, but also to improve and enhance the user experience with mobile communications. Summary of the invention

[0008] The following summarizes some aspects of the present disclosure to provide a basic understanding of the technology discussed. This summary is not an exhaustive overview of all the expected features of the present disclosure, and is neither intended to identify the key or important elements of all aspects of the present disclosure, nor to define the scope of any or all aspects of the present disclosure. Its only purpose is to give some concepts of one or more aspects of the present disclosure in a summarized form as a prelude to more specific embodiments presented later.

[0009] In one aspect of the present disclosure, an apparatus includes at least one processor and a memory coupled to the at least one processor. The at least one processor is configured to: receive an indication of a first number of beams from a second network node; receive bitmap information from the second network node, wherein the bitmap information includes a first bitmap and a second bitmap, wherein the first bitmap corresponds to a first beam in the first number of beams and indicates a first time set of a first synchronization signal physical broadcast channel (SSB) block set sent by the second network node in a first direction of the first beam, and wherein the second bitmap corresponds to a second beam in the first number of beams and indicates a second time set of a second SSB block set sent by the second network node in a second direction of the second beam; and generate first measurement information based on the bitmap information.

[0010] In an additional aspect of the present disclosure, a method for wireless communication includes: receiving, by a first network node, an indication of a first number of beams from a second network node; receiving bitmap information from the second network node, wherein the bitmap information includes a first bitmap and a second bitmap, wherein the first bitmap corresponds to a first beam of the first number of beams and indicates a first time set of a first synchronization signal physical broadcast channel (SSB) block set sent by the second network node in a first direction of the first beam, and wherein the second bitmap corresponds to a second beam of the first number of beams and indicates a second time set of a second SSB block set sent by the second network node in a second direction of the second beam; and generating first measurement information based on the bitmap information.

[0011] In an additional aspect of the present disclosure, an apparatus includes: a component for receiving, by a first network node, an indication of a first number of beams from a second network node; a component for receiving bitmap information from the second network node, wherein the bitmap information includes a first bitmap and a second bitmap, wherein the first bitmap corresponds to a first beam of the first number of beams and indicates a first time set for sending a first synchronization signal physical broadcast channel (SSB) block set by the second network node in a first direction of the first beam, and wherein the second bitmap corresponds to a second beam of the first number of beams and indicates a second time set for sending a second SSB block set by the second network node in a second direction of the second beam; and a component for generating first measurement information based on the bitmap information.

[0012] In an additional aspect of the present disclosure, an apparatus includes at least one processor and a memory coupled to the at least one processor. The at least one processor is configured to: generate an indication of a first number of beams; generate bitmap information, wherein the bitmap information includes a first bitmap and a second bitmap, wherein the first bitmap corresponds to a first beam in the first number of beams and indicates a first time set of a first synchronization signal physical broadcast channel (SSB) block set sent by the second network node in a first direction of the first beam, and wherein the second bitmap corresponds to a second beam in the first number of beams and indicates a second time set of a second SSB block set sent by the second network node in a second direction of the second beam; send the indication of the first number of beams to the second network node; send the bitmap information to the second network node; send one or more SSB blocks in the first SSB block set in the first direction; and send one or more SSB blocks in the second SSB block set in the second direction.

[0013] In an additional aspect of the present disclosure, a method for wireless communication includes: generating an indication of a first number of beams; generating bitmap information, wherein the bitmap information includes a first bitmap and a second bitmap, wherein the first bitmap corresponds to a first beam of the first number of beams and indicates a first time set of a first synchronization signal physical broadcast channel (SSB) block set sent by the second network node in a first direction of the first beam, and wherein the second bitmap corresponds to a second beam of the first number of beams and indicates a second time set of a second SSB block set sent by the second network node in a second direction of the second beam; sending the indication of the first number of beams to the second network node; sending the bitmap information to the second network node; sending one or more SSB blocks of the first SSB block set in the first direction; and sending one or more SSB blocks of the second SSB block set in the second direction.

[0014] In an additional aspect of the present disclosure, a method for wireless communication includes: a component for generating an indication of a first number of beams; a component for generating bitmap information, wherein the bitmap information includes a first bitmap and a second bitmap, wherein the first bitmap corresponds to a first beam of the first number of beams and indicates a first time set for sending a first synchronization signal physical broadcast channel (SSB) block set by the second network node in a first direction of the first beam, and wherein the second bitmap corresponds to a second beam of the first number of beams and indicates a second time set for sending a second SSB block set by the second network node in a second direction of the second beam; a component for sending the indication of the first number of beams to the second network node; a component for sending the bitmap information to the second network node; a component for sending one or more SSB blocks of the first SSB block set in the first direction; and a component for sending one or more SSB blocks of the second SSB block set in the second direction.

[0015] The features and technical advantages of the 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 the 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. When considered in conjunction with the accompanying drawings, the characteristics of the concepts disclosed herein (both their organization and methods of operation) and the associated advantages will be better understood according to the following description. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of the limitations of the claims.

[0016] Although various aspects and specific implementations are described in this application by the illustration of some examples, it will be understood by those skilled in the art that additional specific implementations and use cases can be generated in many different arrangements and scenarios. The innovation described herein can be implemented across many different platform types, devices, systems, shapes, sizes, and packaging arrangements. For example, aspects and / or use can be generated via integrated chip specific implementations and other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / purchase equipment, medical equipment, artificial intelligence (AI) enabled devices, etc.). Although some examples may or may not specifically relate to use cases or applications, the innovation described may have a variety of applicability. The scope of specific implementation can range from chip-level or module components to non-module, non-chip-level specific implementations, and further to aggregated, distributed or original equipment manufacturer (OEM) devices or systems in conjunction with one or more aspects of the described innovation. In some practical environments, the equipment in conjunction with the various aspects and features described may also necessarily include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals necessarily include multiple components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders / summers, etc.). The innovations described herein are intended to be practiced in a variety of devices, chip-level components, systems, distributed arrangements, end-user devices, etc., having different sizes, shapes, and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] A further understanding of the nature and advantages of the present disclosure may be achieved by reference to the following drawings. In the drawings, similar components or features may have the same reference label. In addition, various components of the same type may be distinguished by adding a dash and a second label to distinguish between similar components after the reference label. If only the first reference label is used in the specification, the description applies to any one of the similar components having the same first reference label, regardless of the second reference label.

[0018] Figure 1 is a block diagram illustrating details of an example wireless communication system in accordance with one or more aspects.

[0019] Figure 2 is a block diagram illustrating an example of a base station and a user equipment (UE) according to one or more aspects.

[0020] Figure 3 is a block diagram illustrating an example of a synchronization signal physical broadcast channel (SSB) block burst in accordance with one or more aspects.

[0021] Figure 4is a block diagram illustrating an example wireless communication system supporting synchronization signal pairing according to one or more aspects.

[0022] Figure 5A is a set of example SSB block bitmaps according to one or more aspects.

[0023] Figure 5B is a set of example SSB block bitmaps according to one or more aspects.

[0024] Figure 5C is a set of example SSB block bitmaps according to one or more aspects.

[0025] Figure 5D is a set of example SSB block bitmaps according to one or more aspects.

[0026] Figure 5E is a set of example SSB block bitmaps according to one or more aspects.

[0027] Fig. 5F is a set of example SSB block bitmaps according to one or more aspects.

[0028] Figure 6 is a frequency-time diagram of example SSB block transmissions according to one or more aspects.

[0029] Fig. 7A is a set of example SSB block bitmaps according to one or more aspects.

[0030] Figure 7B is a set of example SSB block bitmaps according to one or more aspects.

[0031] Figure 7C is a set of example SSB block bitmaps according to one or more aspects.

[0032] Figure 8 is a frequency-time diagram of example SSB block transmissions according to one or more aspects.

[0033] Fig. 9 is a frequency-time diagram of example SSB block transmissions according to one or more aspects.

[0034] Fig.10 is a flow diagram illustrating an example process for supporting synchronization signal pairing according to one or more aspects.

[0035] Fig.11 is a flow diagram illustrating an example process for supporting synchronization signal pairing according to one or more aspects.

[0036] Fig.12 is a block diagram of an example UE supporting synchronization signal pairing according to one or more aspects.

[0037] Fig.13 is a block diagram of an example base station supporting synchronization signal pairing according to one or more aspects.

[0038] The same reference numbers and designations in different drawings represent the same elements. DETAILED DESCRIPTION

[0039] The "Detailed Description" set forth below in conjunction with the accompanying drawings is intended as a description of various configurations and is not intended to limit the scope of the present disclosure. Rather, the "Detailed Description" includes specific details for providing a thorough understanding of the subject matter of the present invention. It will be apparent to those skilled in the art that these specific details are not required in every case, and in some cases, well-known structures and components are shown in block diagram form for clarity of presentation.

[0040] The present disclosure as a whole relates to providing or participating in authorized shared access between two or more wireless devices in one or more wireless communication systems (also referred to as wireless communication networks). In various specific implementations, the various techniques and devices can be used in wireless communication networks, such as code division multiple access (CDMA) networks, time division multiple access (TDMA) networks, frequency division multiple access (FDMA) networks, orthogonal FDMA (OFDMA) networks, single carrier FDMA (SC-FDMA) networks, LTE networks, GSM networks, fifth generation (5G) or new radio (NR) networks (sometimes referred to as "5G NR" networks, systems or devices) and other communication networks. As described herein, the terms "network" and "system" can be used interchangeably.

[0041] A CDMA network may implement, for example, a radio technology such as Universal Terrestrial Radio Access (UTRA), cdma2000, etc. UTRA includes Wideband-CDMA (W-CDMA) and Low Chip Rate (LCR). CDMA2000 covers IS-2000, IS-95, and IS-856 standards.

[0042] For example, a TDMA network may implement a radio technology such as the Global System for Mobile Communications (GSM). The Third Generation Partnership Project (3GPP) defines the standard for the GSM EDGE (Enhanced Data Rate for GSM Evolution) Radio Access Network (RAN) (also known as GERAN). GERAN is the radio component of the network of GSM / EDGE together with connecting base stations (e.g., Ater and Abis interfaces) and base station controllers (A interfaces, etc.). The radio access network represents a component of the GSM network through which telephone calls and packet data are routed from the public switched telephone network (PSTN) and the Internet to subscriber phones (also known as user terminals or user equipment (UE)) and from subscriber phones to the PSTN and the Internet. The network of a mobile phone operator may include one or more GERANs, which may be coupled to the UTRAN in the case of a UMTS / GSM network. Additionally, the operator network may also include one or more LTE networks, or one or more other networks. Various network types may use different radio access technologies (RATs) and RANs.

[0043] OFDMA network can implement radio technology such as Evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE) 802.11, IEEE 802.16, IEEE 802.20, flash-OFDM, etc. UTRA, E-UTRA and GSM are part of Universal Mobile Telecommunications System (UMTS). Specifically, Long Term Evolution (LTE) is a UMTS version using E-UTRA. UTRA, E-UTRA, GSM, UMTS and LTE are described in documents provided by an organization named "3rd Generation Partnership Project" (3GPP), and cdma2000 is described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). These various radio technologies and standards are known or being developed. For example, 3GPP is a collaboration between telecommunications association groups to define a globally applicable third generation (3G) mobile phone specification. 3GPP LTE is a 3GPP plan to improve the UMTS mobile phone standard. 3GPP can define the specifications of next generation mobile networks, mobile systems and mobile devices. The present disclosure may describe certain aspects with reference to LTE, 4G or 5G NR technology; however, the description is not intended to be limited to a particular technology or application, and one or more aspects described with reference to one technology may be understood to be applicable to another technology. Additionally, one or more aspects of the present disclosure may relate to shared access to wireless spectrum between networks using different radio access technologies or radio air interfaces.

[0044] 5G networks are expected to enable diverse deployments, diverse spectrum, and diverse services and devices using a unified OFDM-based air interface. To achieve these goals, in addition to developing new radio technologies for 5G NR networks, further enhancements to LTE and LTE-A are also being considered. 5G NR will be able to scale to (1) provide coverage for the massive Internet of Things (IoT) with ultra-high density (e.g., about 1M nodes / km) 2 ), ultra-low complexity (e.g., about 10s of bits / second), ultra-low power consumption (e.g., about more than 10 years of battery life), and deep coverage with the ability to reach challenging locations; (2) provide coverage including mission-critical control with strong security to protect sensitive personal, financial, or classified information, ultra-high reliability (e.g., about 99.9999% reliability), ultra-low latency (e.g., about 1 millisecond (ms)), and users with a wide range of mobility or lack of mobility; and (3) provide coverage with enhanced mobile broadband (including very high capacity (e.g., about 10Tbps / km 2 ), coverage of extremely high data rates (e.g., multi-Gbps rates, over 100Mbps user experience rates), and deep awareness with advanced discovery and optimization).

[0045] Devices, networks, and systems may be configured to communicate via one or more portions of the electromagnetic spectrum. The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified as frequency ranges designated FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). Frequencies between FR1 and FR2 are typically referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is typically (interchangeably) referred to as the "below 6 GHz" band in various documents and articles. Similar naming issues sometimes arise for FR2, which is typically (interchangeably) referred to as the "millimeter wave" (mmWave) band in documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz-300 GHz) identified as the "mmWave" band by the International Telecommunication Union (ITU).

[0046] In view of the above aspects, unless otherwise specifically stated, it should be understood that if the term "6 GHz or less" is used in this document, it can broadly refer to frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if used in this document, the term "mmWave" or the like can broadly refer to frequencies that may include mid-band frequencies, may be within FR2, or may be within the EHF band.

[0047] 5G NR devices, networks, and systems can be implemented to use optimized OFDM-based waveform features. These features may include: scalable parameter sets and transmission time intervals (TTIs); a common flexible framework that efficiently multiplexes services and features using dynamic, low-latency time division duplex (TDD) designs or frequency division duplex (FDD) designs; and advanced wireless technologies such as massive multiple-input multiple-output (MIMO), robust mmWave transmission, advanced channel decoding, and device-centric mobility. The scalability of parameter sets in 5G NR and the scaling of subcarrier spacing can efficiently address the operation of various services across different spectrums and different deployments. For example, in various outdoor and macro coverage deployments of less than 3GHz FDD or TDD implementations, the subcarrier spacing can appear at 15kHz, such as over bandwidths of 1MHz, 5MHz, 10MHz, 20MHz, etc. For various other outdoor and small cell coverage deployments where TDD is greater than 3GHz, the subcarrier spacing can appear at 30kHz on 80MHz / 100MHz bandwidth. For various other indoor broadband implementations, using TDD on the unlicensed portion of the 5 GHz band, the subcarrier spacing may occur at 60 kHz over a 160 MHz bandwidth. Finally, for various deployments transmitting over mmWave components at 28 GHz TDD, the subcarrier spacing may occur at 120 kHz over a 500 MHz bandwidth.

[0048] 5G NR's scalable parameter set facilitates scalable TTI for diverse latency and quality of service (QoS) requirements. For example, shorter TTIs can be used for low latency and high reliability, while longer TTIs can be used for higher spectral efficiency. Efficient multiplexing of long and short TTIs allows transmission to start on symbol boundaries. 5G NR also anticipates an independent integrated subframe design in which uplink or downlink scheduling information, data, and acknowledgments are in the same subframe. Independent integrated subframes support communications in unlicensed or contention-based shared spectrum, and adaptive uplink or downlink can be flexibly configured on a per-cell basis to dynamically switch between uplink and downlink to meet current business needs.

[0049] For clarity, certain aspects of devices and techniques may be described below with reference to example 5G NR implementations or in a 5G-centric manner, and 5G terminology may be used as illustrative examples in portions of the description below; however, the description is not intended to be limited to 5G applications.

[0050] Furthermore, it should be understood that in operation, a wireless communication network adapted according to the concepts herein may operate using any combination of licensed or unlicensed spectrum depending on load and availability. It will therefore be apparent to one of ordinary skill in the art that the systems, devices, and methods described herein may be applied to other communication systems and applications beyond the specific examples provided.

[0051] Although various aspects and specific implementations are described in this application by illustrating some examples, it will be understood by those skilled in the art that additional specific implementations and use cases may be generated in many other arrangements and scenarios. The innovations described herein may be implemented across many different platform types, devices, systems, shapes, sizes, and packaging arrangements. For example, specific implementations or use may be implemented via integrated chip specific implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail devices or purchasing devices, medical devices, AI-enabled devices, etc.). Although some examples may or may not specifically relate to use cases or applications, the innovations described may have a variety of applicability. The scope of specific implementations may range from chip-level or modular components to non-modular, non-chip-level specific implementations, and further to aggregated, distributed, or original equipment manufacturer (OEM) devices or systems containing one or more described aspects. In some practical environments, the devices in combination with the various aspects and features described may also necessarily include additional components and features for implementing and practicing the various aspects claimed and described. It is contemplated that the innovations described herein may be implemented in a wide variety of embodiments of different sizes, shapes, and configurations, including both large and small devices, chip-level components, multi-component systems (e.g., radio frequency (RF) chains, communication interfaces, processors), distributed arrangements, end-user devices, and the like.

[0052] Figure 1 1 is a block diagram illustrating details of an example wireless communication system according to one or more aspects. The wireless communication system may include a wireless network 100. The wireless network 100 may, for example, include a 5G wireless network. As will be appreciated by those skilled in the art, Figure 1 Components appearing in are likely to have related corresponding components in other network arrangements (including, for example, cellular-style network arrangements and non-cellular-style network arrangements (e.g., device-to-device or peer-to-peer or ad hoc network arrangements, etc.)).

[0053] Figure 1The illustrated wireless network 100 includes multiple base stations 105 and other network entities. A base station may be a station that communicates with a UE, and may also be referred to as an evolved node B (eNB), a next generation eNB (gNB), an access point, etc. Each base station 105 may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a specific geographic coverage area of ​​a base station or a base station subsystem serving the coverage area, depending on the context in which the term is used. In the specific implementation of the wireless network 100 herein, the base station 105 may be associated with the same operator or different operators (e.g., the wireless network 100 may include multiple operator wireless networks). Additionally, in the specific implementation of the wireless network 100 herein, the base station 105 may use one or more frequencies (e.g., one or more frequency bands in a licensed spectrum, an unlicensed spectrum, or a combination thereof) in the same frequency as an adjacent cell to provide wireless communication. In some examples, a separate base station 105 or UE 115 may be operated by more than one network operating entity. In other examples, each base station 105 and UE 115 may be operated by a single network operating entity.

[0054] A base station may provide communication coverage for a macro cell or a small cell such as a pico cell or a femto cell or other type of cell. A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with a service subscription with a network provider. Small cells such as pico cells will generally cover a relatively small geographic area and may allow unrestricted access by UEs with a service subscription with a network provider. Small cells such as femto cells will generally also cover a relatively small geographic area (e.g., a home) and, in addition to unrestricted access, may also provide restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG), UEs of users in a home, etc.). A base station for a macro cell may be referred to as a macro base station. A base station for a small cell may be referred to as a small cell base station, a pico base station, a femto base station, or a home base station. In Figure 1 In the example shown, base stations 105d and 105e are conventional macro base stations, while base stations 105a-105c are macro base stations implemented using one of 3-dimensional (3D), full-dimensional (FD), or massive MIMO. Base stations 105a-105c use their higher-dimensional MIMO capabilities to employ 3D beamforming in elevation and azimuth beamforming to increase coverage and capacity. Base station 105f is a small cell base station, which can be a home node or a portable access point. The base station can support one or more (e.g., two, three, four, etc.) cells.

[0055] Wireless network 100 may support synchronous or asynchronous operation. For synchronous operation, base stations may have similar frame timings, and transmissions from different base stations may be approximately aligned in time. For asynchronous operation, base stations may have different frame timings, and transmissions from different base stations may not be aligned in time. In some cases, the network may be enabled or configured to handle dynamic switching between synchronous or asynchronous operation.

[0056] UE 115 is dispersed throughout the wireless network 100, and each UE may be stationary or mobile. It should be understood that, although in the standards and specifications promulgated by 3GPP, mobile devices are generally referred to as UEs, such devices may be additionally or otherwise referred to as mobile stations (MS), subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals (AT), mobile terminals, wireless terminals, remote terminals, mobile phones, terminals, user agents, mobile clients, clients, gaming devices, augmented reality devices, vehicle components, vehicle devices or vehicle modules or some other suitable terminology by those skilled in the art. In this document, a "mobile" device or UE does not necessarily have the ability to move and may be stationary. Some non-limiting examples of mobile devices, such as may include one or more specific implementations of UE 115, include mobile phones, cellular phones, smart phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, laptops, personal computers (PCs), notebooks, netbooks, smart books, tablet computers, and personal digital assistants (PDAs). The mobile device may additionally be an IoT or "Internet of Everything" (IoE) device, such as a car or other transportation vehicle, a satellite radio, a global positioning system (GPS) device, a global navigation satellite system (GNSS) device, a logistics controller, a drone, a multi-rotor helicopter, a quad-rotor helicopter, a smart energy or security device, a solar panel or solar array, city lighting, tap water or other infrastructure; industrial automation and enterprise equipment; consumer and wearable devices, such as glasses, wearable cameras, smart watches, health or fitness trackers, mammal implantable devices, gesture tracking devices, medical devices, digital audio players (e.g., MP3 players), cameras, game consoles, etc.; and digital home or smart home devices, such as home audio, video and multimedia devices, appliances, sensors, vending machines, smart lighting, home security systems, smart meters, etc. In one aspect, the UE may be a device including a universal integrated circuit card (UICC). In another aspect, the UE may be a device that does not include a UICC. In some aspects, a UE that does not include a UICC may also be referred to as an IoE device. Figure 1The UE 115a-115d of the specific implementation illustrated in the figure are examples of mobile smart phone type devices accessing the wireless network 100. The UE may also be a machine specifically configured for connected communications (including machine type communications (MTC), enhanced MTC (eMTC), narrowband IoT (NB-IoT), etc.). Figure 1 The illustrated UEs 115e - 115k are examples of various machines that access the wireless network 100 and are configured for communication.

[0057] A mobile device such as UE 115 may be able to communicate with any type of base station, whether macro, pico, femto, relay, etc. Figure 1 In the figure, the communication link (represented as lightning) indicates the wireless transmission between the UE and the serving base station (which is the base station designated to serve the UE on the downlink or uplink) or the expected transmission between the base stations and the backhaul transmission between the base stations. The UE may operate as a base station or other network node in some scenarios. The backhaul communication between the base stations of the wireless network 100 may be performed using a wired or wireless communication link.

[0058] In operation, at the wireless network 100, base stations 105a-105c use 3D beamforming and cooperative spatial techniques (e.g., coordinated multipoint (CoMP) or multi-connectivity) to serve UEs 115a and 115b. Macro base station 105d performs backhaul communications with base stations 105a-105c and small cells (base station 105f). Macro base station 105d also transmits multicast services subscribed to and received by UEs 115c and 115d. Such multicast services may include mobile TV or streaming video, or may include other services for providing community information such as weather emergencies or alerts such as Amber alerts or gray alerts.

[0059] The wireless network 100 of the specific implementation supports mission-critical communications using ultra-reliable and redundant links for mission-critical devices such as UE 115e as drones. The redundant communication links with UE 115e include links from macro base stations 105d and 105e and small cell base station 105f. Other machine-type devices such as UE 115f (thermometer), UE 115g (smart meter) and UE 115h (wearable device) can communicate directly with base stations such as small cell base station 105f and macro base station 105e through the wireless network 100, or in a multi-hop configuration by communicating with another user device that relays its information to the network, such as UE 115f communicating temperature measurement information to smart meter UE 115g, and then UE 115g reporting the temperature measurement information to the network through small cell base station 105f. The wireless network 100 may also provide additional network efficiency through dynamic, low-latency TDD communications or low-latency FDD communications (eg, in a vehicle-to-vehicle (V2V) mesh network between UEs 115i-115k communicating with a macro base station 105e).

[0060] Figure 2 1 is a block diagram illustrating an example of a base station 105 and a UE 115 according to one or more aspects. The base station 105 and the UE 115 may be Figure 1 For a restricted association scenario (as described above), base station 105 may be any base station in the base station and one of the UEs. Figure 1 The small cell base station 105f in the example of FIG. 105 and the UE 115 may be a UE 115c or 115d operating in the service area of ​​the base station 105f, which will be included in the list of accessible UEs of the small cell base station 105f in order to access the small cell base station 105f. The base station 105 may also be some other type of base station. Figure 2 As shown in FIG. 1 , the base station 105 may be equipped with antennas 234a through 234t and the UE 115 may be equipped with antennas 252a through 252r for facilitating wireless communication.

[0061] At the base station 105, the transmit processor 220 may receive data from the data source 212 and control information from the controller 240, such as a processor. The control information may be for a physical broadcast channel (PBCH), a physical control format indicator channel (PCFICH), a physical hybrid ARQ (automatic repeat request) indicator channel (PHICH), a physical downlink control channel (PDCCH), an enhanced physical downlink control channel (EPDCCH), an MTC physical downlink control channel (MPDCCH), etc. The data may be for a physical downlink shared channel (PDSCH), etc. Additionally, the transmit processor 220 may process (e.g., encode and symbol map) the data and the control information, respectively, to obtain data symbols and control symbols. The transmit processor 220 may also generate reference symbols, such as for a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), and a cell-specific reference signal. The transmit (TX) MIMO processor 230 may perform spatial processing (e.g., pre-coding) on ​​data symbols, control symbols, or reference symbols (if applicable), and may provide an output symbol stream to modulators (MODs) 232a to 232t. For example, spatial processing performed on data symbols, control symbols, or reference symbols may include pre-coding. Each modulator 232 may process a corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Additionally or alternatively, each modulator 232 may process the output sample stream (e.g., analog-convert, amplify, filter, and up-convert it) to obtain a downlink signal. The downlink signals from modulators 232a to 232t may be transmitted via antennas 234a to 234t, respectively.

[0062] At the UE 115, antennas 252a to 252r may receive downlink signals from the base station 105 and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a corresponding received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the demodulators 254a to 254r, perform MIMO detection on the received symbols when necessary, and provide detected symbols. A receive processor 258 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 115 to a data sink 260, and provide decoded control information to a controller 280, such as a processor.

[0063] On the uplink, at the UE 115, the transmit processor 264 may receive and process data from a data source 262 (e.g., for a physical uplink shared channel (PUSCH)) and control information from a controller 280 (e.g., for a physical uplink control channel (PUCCH)). Additionally, the transmit processor 264 may also generate reference symbols for reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, if necessary, further processed by the modulators 254a through 254r (e.g., for SC-FDM, etc.), and transmitted to the base station 105. At the base station 105, the uplink signal from the UE 115 may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236, if necessary, and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 115. Receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to controller 240 .

[0064] The controllers 240 and 280 may direct the operation at the base station 105 and the UE 115, respectively. The controller 240 or other processors and modules at the base station 105 or the controller 280 or other processors and modules at the UE 115 may perform or direct the execution of various processes for the techniques described herein, such as to perform or direct the execution of various processes for the techniques described herein. Figure 10 to Figure 11 2 and 3. The memory 242 and 282 may store data and program codes for the base station 105 and the UE 115, respectively. The scheduler 244 may schedule the UE to transmit data on the downlink or uplink.

[0065] In some cases, the UE 115 and the base station 105 may operate in a shared radio spectrum band, which may include licensed or unlicensed (e.g., contention-based) spectrum. In the unlicensed frequency portion of the shared radio spectrum band, the UE 115 or the base station 105 may traditionally perform a medium sensing process to compete for access to the spectrum. For example, the UE 115 or the base station 105 may perform a listen-before-talk or listen-before-send (LBT) process such as a clear channel assessment (CCA) before communication to determine whether the shared channel is available. In some specific implementations, the CCA may include an energy detection process to determine whether there are any other active transmissions. For example, the device may infer that a change in the received signal strength indicator (RSSI) of the power meter indicates that the channel is occupied. Specifically, the signal power concentrated in a certain bandwidth and exceeding a predetermined noise floor may indicate another wireless transmitter. CCA may also include detection of a specific sequence indicating the use of the channel. For example, another device may send a specific preamble before sending a data sequence. In some cases, the LBT process may include the wireless node adjusting its own backoff window based on the amount of energy detected on the channel or acknowledgement / negative acknowledgement (ACK / NACK) feedback for its own transmitted packets (as a manifestation of a collision).

[0066] The base station may provide the UE with beam-specific SSB block transmission information to allow the UE to pair measurements or processing of measurements of SSB blocks transmitted in the direction of a specific beam. The SSB blocks transmitted in the direction of the beam may be, for example, SSB blocks transmitted using the same spatial parameters of the beam, such as SSB blocks having the same quasi-co-location (QCL) state as the beam or SSB blocks transmitted using the same transmit control information (TCI) state as the beam.

[0067] The base station may provide the UE with a certain number of beams that the base station will use to send SSB blocks. The base station may also provide the UE with an SSB block bitmap for each corresponding beam in the number of beams, thereby indicating timing information for sending SSB blocks in the direction of each corresponding beam. The SSB block bitmap for each beam may be, for example, an SSB block bitmap for SSB blocks sent in the same direction of each corresponding beam, such as QCL SSB blocks located in the same SSB block burst transmission or SSB blocks sharing the same TCI state. The UE may use the bitmap to pair the measurement and / or processing of SSB information for SSB blocks that share the same spatial and / or beamforming parameters, such as SSB blocks sent in the same direction of the same beam. Such pairing may be performed for SSB blocks that share the same direction of the same beam in the same SSB burst transmission or across multiple SSB burst transmissions. In addition, such a bitmap can be used to pair an SSB block with a downlink channel or uplink channel in the same direction sharing the same beam, such as by applying a spatial filter associated with the QCL state or TCI state to a downlink transmission or uplink transmission sent using the same QCL state or TCI state, so as to more efficiently measure the SSB block before the UE receives a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH) or before the UE sends a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).

[0068] The use of beam-specific SSB block bitmaps can improve UE efficiency, reliability, and accuracy when processing SSB block measurements. For example, for conditional handover, radio link monitoring, radio resource management, beam management, and antenna port selection, the use of such bitmaps can improve reliability and reduce latency in high Doppler detection scenarios based on frequency tracking loops (FTLs), such as high-speed trains and unmanned aerial vehicle scenarios. The use of such bitmaps can also provide power saving enhancements, such as enabling longer sleep states with fewer wake-up conditions in idle or inactive modes for measurement or tracking loop maintenance. For example, enhanced power savings can be achieved in connected mode discontinuous reception (C-DRX) scenarios. The use of such bitmaps can also reduce network overhead for periodic and wideband reference signals, such as periodic tracking reference signals (TRS), phase tracking reference signals (PTRS), or channel state information reference signals (CSI-RS).

[0069] Synchronization signal and physical broadcast channel transmissions may be combined in an SSB block to facilitate efficient signal measurements by the UE. Figure 3An example SSB block 302 is shown in Figure 300 of FIG. The SSB block may include a primary synchronization signal, a secondary synchronization signal, and one or more physical broadcast channel elements (PBCHC). The SSB may, for example, include four symbols. Multiple SSB blocks 306A-306C may be sent sequentially in time in an SSB block burst transmission 304. The SSB block burst transmission 300 may include one or more SSB blocks broadcast in a cell and may be repeated periodically. Such repetitions may be used for retransmission of SSB blocks or for beam scanning applications. The SSB block burst transmission 304 may be sent in a 5 millisecond window or half frame. Alternatively, other time windows may be used to send SSB block burst transmissions. The SSB block index of each transmitted SSB block may be encoded in a PBCH demodulation reference signal (DMRS). For example, some SSB blocks may be sent using the same beam in a specific direction, such as using a QCL antenna port of a base station with the same gain and beamforming function or with the same TCI state. Therefore, for multiple SSB blocks sent at different times in the same direction of the same beam, the delay spread, Doppler spread, Doppler shift, average gain, average delay and spatial parameters can be similar or identical.

[0070] The maximum number of SSB blocks that may be included in the SSB block burst transmission 300 may depend on the carrier frequency. For carrier frequencies less than or equal to 3 GHz with a subcarrier spacing of 15 kHz or 30 kHz, the maximum number of SSB blocks in the SSB block burst transmission may be 4. For carrier frequencies between 3 GHz and 6 GHz with a subcarrier spacing of 15 kHz or 30 kHz, the maximum number of SSB blocks in the SSB block burst transmission may be 8. For carrier frequencies greater than 6 GHz with a subcarrier spacing of 120 kHz or 240 kHz, the maximum number of SSB blocks in the SSB block burst transmission may be 64. In essence, higher frequencies may require the use of narrower beams for the transmission of SSB blocks and more beam scanning steps to measure the SSB blocks. Therefore, a larger number of SSB blocks in each SSB block burst transmission may be used in conjunction with a higher operating frequency.

[0071] The SSB blocks may be beamformed for transmission and may be transmitted in the direction of a particular beam. Transmitting the SSB blocks in the direction of a particular beam may, for example, include transmitting the SSB blocks using the same QCL state or TCI state associated with the beam, such as by applying the same spatial filter when beamforming the SSB block transmission. For example, the SSB blocks may be transmitted using QCL antenna ports of a base station with the same gain and beamforming capabilities. Beamforming of the SSB blocks may allow the SSB blocks to be transmitted in a specific spatial pattern so that the base station transmits the SSB blocks more efficiently and the UE receives the SSB blocks more efficiently. For example, in an urban environment, beamforming may be applied to transmit SSB blocks and other signals along streets and other open areas to minimize energy waste caused by transmitting in beam directions that may encounter interference (such as interference caused by buildings or other interference sources) or in beam directions that do not correspond to the intended receiving UE.

[0072] Multiple SSB blocks transmitted in the same direction of the same beam may apply the same beamforming parameters, and such beamforming parameters may be defined by a QCL state or TCI state shared by the transmitted SSB blocks, such as by applying the same spatial filter associated with the QCL state or TCI state to the SSB blocks when the SSB blocks are transmitted. Thus, a first set of SSB blocks transmitted in a first direction of a first beam may be transmitted using the same QCL state or TCI state associated with the first beam, while a second set of SSB blocks transmitted in a second direction of a second beam may be transmitted using the same QCL state or TCI state associated with the second beam, and the first direction and the associated QCL state or TCI state of the first direction of the first beam may be different from the second direction and the associated QCL state or TCI state of the second direction of the second beam.

[0073] In some cases, an SSB block may be characterized as a cell definition SSB (CD-SSB) block or a non-cell definition (NCD-SSB) block. The CD-SSB block may be beamformed and sent on a synchronization raster and may be associated with an initial downlink bandwidth portion configured by a master information block. When initiating a connection with a cell, such as during a cell search or cell selection process, the CD-SSB block may be scanned or measured by the UE during the initial cell establishment process. For example, the UE may scan or measure one or more CD-SSB blocks to obtain synchronization, measurement, and radio link monitoring. The NCD-SSB block may be a beamformed SSB block that is not associated with a control resource set (CORESET) #0 or an initial downlink bandwidth portion. For example, in some cases, an NCD-SSB block may be configured for transmission in a dedicated downlink bandwidth portion of a UE with reduced functionality, although the NCD-SSB block may also be configured for transmission to other UEs. The UE may use the NCD-SSB block for some of the same purposes as the CD-SSB of the serving cell, such as obtaining synchronization, measurement, and radio link monitoring. The NCD-SSB block may, for example, share some parameters with a CD-SSB associated with the same cell, such as the same ssb-periodicity, ssb-PBCH-BlockPower and other parameters. However, the NCD-SSB block of a cell may also have different parameters from the CD-SSB of the cell, such as a different absolute frequency, a different period or a different time offset.

[0074] The UE may be configured to perform measurements of SSB blocks within a specific bandwidth portion. In some cases, the bandwidth portion of the UE may not overlap with the bandwidth used by the serving cell to send CD-SSB blocks. Therefore, once the UE has formed an initial connection with the cell using the CD-SSB block, the UE may proceed to perform measurements of the NCD-SSB block for synchronization purposes on a narrower bandwidth that does not overlap with the bandwidth used to send the CD-SSB block. Using a narrower bandwidth can achieve power savings. Therefore, both UEs with reduced functionality and UEs with non-reduced functionality can perform measurements of NCD-SSB blocks. In addition, when the UE is in a connected state, a semi-connected state, an idle state, or an inactive state relative to the base station, the NCD-SSB block may be sent by the base station and measured by the UE.

[0075] For NCD-SSB blocks or CD-SSB blocks, the number of SSB blocks actually sent in burst transmissions associated with different beams (such as sent in the directions of different corresponding beams) may be less than or equal to the total number of SSB blocks actually sent in the burst transmission. The number of SSB blocks actually sent in a burst transmission may be less than or equal to the maximum number of SSB blocks for sending in a burst transmission. In some scenarios, it may be useful for the UE to pair SSB blocks in a burst set or multiple burst sets sent in the direction of the same beam, such that the sent SSB blocks have the same QCL state, or the sent SSB blocks have the same TCI state. Such pairing enables more efficient measurement, processing, or tracking of SSB block transmissions.

[0076] Wideband reference signals such as TRS or CSI-RS may not be sent periodically in the network. NCD-SSB or CD-SSB blocks may be periodically sent and sensed by the UE. In addition, the coverage area of ​​the cell may be asymmetric and may be affected by geography or location, such as by railways, bridges or rivers or city streets. Taking into account that the cell shape may be asymmetric, the cell may not beamform the SSB blocks along the maximum number of beams. Therefore, the number of beams used to send SSB blocks by the cell may vary, and the number of SSB blocks sent in the direction of each beam may also vary. In order to facilitate the UE to measure the SSB blocks sent in the direction of a particular beam\, the base station may provide the UE with an indication of the beam for each SSB block in the SSB block set, such as an SSB block burst transmission. For example, the base station may provide a beam-specific bit for each beam. Figure 1 The base station may transmit an actual number of beams for transmitting SSB blocks by the base station, and the beam-specific bitmap indicates the time when the SSB blocks for transmission in the direction of each corresponding beam will be transmitted. Thus, if the base station is configured to transmit SSB blocks using three different beam directions, the base station may send three beam-specific bitmaps to the UE. The UE may pair SSB blocks transmitted in the direction of the same beam for measurement or processing.

[0077] Figure 4 is a block diagram of an example wireless communication system 400 supporting synchronization signal pairing according to one or more aspects. In some examples, the wireless communication system 400 can implement aspects of the wireless network 100. The wireless communication system 400 includes a UE 115 and a base station 105. Although one UE 115 and one base station 105 are illustrated, in some other specific implementations, the wireless communication system 400 may generally include multiple UEs 115 and may include more than one base station 105.

[0078] UE 115 may include various components (such as structural components, hardware components) for performing one or more functions described herein. For example, these components may include one or more processors 402 (hereinafter collectively referred to as "processor 402"), one or more memory devices 404 (hereinafter collectively referred to as "memory 404"), one or more transmitters 412 (hereinafter collectively referred to as "transmitter 412"), one or more receivers 414 (hereinafter collectively referred to as "receiver 414"), one or more encoders 416 (hereinafter collectively referred to as "encoder 416"), and one or more decoders 418 (hereinafter collectively referred to as "decoder 418"). Processor 402 may be configured to execute instructions stored in memory 404 to perform the operations described herein. In some specific implementations, processor 402 includes or corresponds to one or more of receiving processor 258, transmitting processor 264, and controller 280, and memory 304 includes or corresponds to memory 282.

[0079] The memory 304 includes or is configured to store SSB beam quantity data 406, SSB bitmap data 408, and SSB bitmap activation data 410. The SSB beam quantity data 406 may, for example, include the number of beams that the base station 105 will use to actually send the SSB block. In some embodiments, the SSB beam quantity data 406 may apply to a specific SSB block burst. In some embodiments, the SSB beam quantity data 406 may include multiple beam quantities, each of which applies to a specific SSB block burst. The SSB bitmap data 408 may include one or more beam-specific bitmaps for sending SSB blocks. Each beam-specific bitmap in the SSB bitmap data 408 may, for example, include information indicating one or more times to send SSB blocks in the direction of each corresponding beam. In some embodiments, each beam-specific bitmap may include a number of bits equal to the maximum number of SSB blocks to be sent in an SSB block burst transmission. Therefore, each beam-specific bitmap may indicate one or more times that the SSB block will be sent by the base station 105 in the direction of the associated beam. The SSB bitmap activation data 410 may include an activation status of one or more beam specific bitmaps in the SSB bitmap activation data 410. For example, the UE 115 may receive one or more beam specific bitmaps from the base station 105, but the received bitmaps may remain inactive until the UE 115 receives an activation instruction from the base station 105. Therefore, the UE 115 may avoid measuring SSB blocks transmitted by the base station 105 based on the received SSB bitmap until activation data, such as an activation instruction, is received from the base station 105.

[0080] The transmitter 412 is configured to send reference signals, control information, and data to one or more other devices, and the receiver 414 is configured to receive reference signals, synchronization signals, control information, and data from one or more other devices. For example, the transmitter 412 may send signaling, control information, and data to the base station 105, and the receiver 414 may receive signaling, control information, and data from the base station. In some implementations, the transmitter 412 and the receiver 414 may be integrated into one or more transceivers. Additionally or alternatively, the transmitter 412 or the receiver 414 may include or correspond to a reference signal. Figure 2 One or more components of UE 115 are described.

[0081] The UE 115 may also include an SSB measurement module 420. The SSB measurement module 420 may, for example, include instructions executable by the processor 402 to perform the functions described herein. The SSB measurement module 420 may, for example, generate measurement information for one or more SSB blocks transmitted by the base station 105 based on the SSB beam number data 406, the SSB bitmap data 408, or the SSB bitmap activation data 410. For example, when one or more beam-specific SSB bitmaps in the SSB bitmap data 408 are activated based on the SSB bitmap activation data 410, the SSB measurement module 420 may measure one or more QCL SSB blocks indicated by one or more beam-specific SSB bitmaps in the beam-specific SSB bitmaps. For example, the SSB measurement module may sense one or more SSB block transmissions to measure one or more parameters of the one or more SSB block transmissions, such as timing, signal strength, and interference. The SSB measurement module 420 may also use the measurement information to synchronize the UE with the base station. For example, the SSB measurement module 420 may use the measurement information to synchronize the timing of data transmission and reception by the UE with the timing of data transmission and reception by the base station.

[0082] The base station 105 may include various components (such as structural components, hardware components) for performing one or more functions described herein. For example, these components may include one or more processors 430 (hereinafter collectively referred to as "processor 430"), one or more memory devices 432 (hereinafter collectively referred to as "memory 432"), one or more transmitters 438 (hereinafter collectively referred to as "transmitter 438"), one or more receivers 440 (hereinafter collectively referred to as "receiver 440"), one or more encoders 442 (hereinafter collectively referred to as "encoder 442"), and one or more decoders 444 (hereinafter collectively referred to as "decoder 444"). The processor 430 may be configured to execute instructions stored in the memory 354 to perform the operations described herein. In some specific implementations, the processor 430 includes or corresponds to one or more of the receiving processor 238, the transmitting processor 220, and the controller 240, and the memory 354 includes or corresponds to the memory 242.

[0083] The memory 354 includes or is configured to store SSB beam quantity data 434, SSB bitmap data 436, and SSB bitmap activation data 437. The SSB beam quantity data 434 may, for example, include the number of beams that the base station 105 will use to actually send the SSB block. In some embodiments, the SSB beam quantity data 434 may apply to a specific SSB block burst. In some embodiments, the SSB beam quantity data 434 may include multiple beam quantities, each quantity applied to a specific SSB block burst. The SSB bitmap data 436 may include one or more beam-specific bitmaps for sending SSB blocks. Each beam-specific bitmap in the SSB bitmap data 408 may, for example, include information indicating one or more times to send SSB blocks in the direction of each corresponding beam. In some embodiments, each beam-specific bitmap may include a number of bits equal to the maximum number of SSB blocks to be sent in an SSB block burst transmission. Therefore, each beam-specific bitmap may indicate one or more times that the SSB block will be sent by the base station 105 in the direction of a specific beam. The SSB bitmap activation data 437 may include the activation status of one or more beam-specific bitmaps in the SSB bitmap data 436 by one or more UEs, such as UE 115 .

[0084] The transmitter 438 is configured to send reference signals, synchronization signals, control information, and data to one or more other devices, and the receiver 440 is configured to receive reference signals, control information, and data from one or more other devices. For example, the transmitter 438 may send signaling, control information, and data to the UE 115, and the receiver 440 may receive signaling, control information, and data from the UE. In some implementations, the transmitter 438 and the receiver 440 may be integrated into one or more transceivers. Additionally or alternatively, the transmitter 438 or the receiver 440 may include or correspond to a reference signal. Figure 2 One or more components of a base station 105 are described.

[0085] The base station 105 may also include an SSB number and bitmap generator 446 that may generate SSB beam number data 434 and SSB bitmap data 436 for transmission to the UE 115. For example, the SSB number and bitmap generator 446 may include instructions executable by the processor 430 to perform the functions of the SSB number and bitmap generator 446 described herein. Generally or for a particular set of SSB block burst transmissions, the SSB number and bitmap generator 446 may determine the actual number of beams that will be used to transmit the SSB blocks, and may determine the SSB beam number data 434 based on the actual number of beams. The SSB number and bitmap generator 446 may also determine when the SSB blocks will be transmitted in the direction of a particular beam, such as which time slot of the SSB block burst transmission in which the SSB blocks at the QCL on the beam will be transmitted. The SSB number and bitmap generator 446 may make such a determination for each beam used for the SSB block transmission in the SSB block burst transmission. The SSB number and bitmap generator 446 may then generate a beam-specific bitmap for each respective beam in which an SSB block is to be transmitted in an SSB block burst transmission. The beam-specific bitmap may, for example, indicate one or more time slots in which an SSB block is to be transmitted in the direction of the beam in an SSB burst transmission and one or more time slots in which an SSB block is not to be transmitted in the direction of the beam in an SSB burst transmission. Thus, for a single SSB burst transmission, the SSB number and bitmap generator 446 may generate up to three or more beam-specific bitmaps.

[0086] The base station 105 may also include an SSB transmit module 448. The SSB transmit module 448 may include instructions executable by the processor 430 to perform the functions of the SSB transmit module 448 described herein. For example, the SSB transmit module 448 may cause the base station 105 to transmit one or more SSB block burst transmissions, such as CD-SSB or NCD SSB block burst transmissions, to the UE 115 in order to measure the one or more SSB blocks by the UE 115. The SSB transmit module may also cause the base station 105 to transmit SSB beam quantity data 434 and SSB bitmap data 437 to the UE 115.

[0087] In some implementations, the wireless communication system 400 implements a 5G NR network. For example, the wireless communication system 300 may include a plurality of 5G-capable UEs 115 and a plurality of 5G-capable base stations 105, such as UEs and base stations configured to operate according to a 5G NR network protocol such as defined by 3GPP.

[0088] During operation of the wireless communication system 400, the base station 105 may send SSB beam quantity and bitmap information 452 to the UE 115. The SSB beam quantity and bitmap information 452 may, for example, include SSB beam quantity data 434 and SSB bitmap data 436. In some embodiments, the base station 105 may split the SSB beam quantity data 434 and the SSB bitmap data 436 for transmission across two or more transmissions. The base station 105 may also send bitmap activation information 454 to the UE 115. For example, after the base station 105 sends the SSB beam quantity and bitmap information 452 to the UE 115, the SSB beam quantity data 406 and the SSB bitmap data 408 may be automatically activated in the UE for use by the UE to measure one or more SSB blocks, or the UE 115 may wait to receive the bitmap activation information 454 from the base station 105 before using the received SSB beam quantity data 406 or SSB bitmap data 408.

[0089] The UE 115 may send an SSB request 450 to the base station 105 to request the base station 105 to send one or more SSB blocks indicated by the SSB bitmap data 408, such as to request the base station 105 to send an SSB block burst transmission indicated by one or more beam-specific bitmaps in the SSB bitmap data 408. For example, the base station 105 may send SSB blocks in a semi-static or aperiodic configuration, such as NCD-SSB blocks. The UE 115 may send an SSB request 450 to request the base station to send a semi-static or aperiodic SSB block, such as a semi-static or aperiodic NCD-SSB block burst transmission. In some embodiments, the SSB request 450 may be a report of the UE 115, such as a report of a status of the UE 115, or a report of the occurrence of a preconfigured event.

[0090] The base station 105 may send one or more SSB block bursts 456 to the UE. The SSB block burst 456 may, for example, include SSB blocks indicated by the SSB bitmap data 408 stored by the UE 115. In some embodiments, the base station 105 may send the SSB block burst 456 in response to the received SSB request 450.

[0091] FIG. 5A to FIG. 5F An example bitmap of an SSB block sent by a base station to a UE is shown in FIG. FIG. 5A to FIG. 5F The bitmap may be, for example, a bitmap for SSB block burst transmission. Figure 5A To position Fig. 5FThe maximum number of time slots in which an SSB block is sent within a burst in a may be 8, although other maximum numbers of blocks within an SSB block burst may be used. An SSB block burst transmission may be divided into a maximum number of time slots so that 0 or 1 SSB block is sent in each time slot. An SSB block burst transmission may have a maximum length of one-half a frame or 5 ms. Thus, the length of each time slot used to send an SSB block within an SSB block burst may vary based on the maximum number of SSB blocks that may be sent within an SSB block burst transmission. A value of 1 may indicate that an SSB block is sent in a time slot, while a value of 0 may indicate that an SSB block is not sent in a time slot. Thus, an SSB bitmap, such as a beam-specific bitmap, sent from a base station to a UE may include 8 bits, more than 8 bits, or less than 8 bits.

[0092] Figure 5A The bitmap set 500 may include a single bitmap. The single bitmap may be, for example, a bitmap indicating SSB burst transmission time slots for all SSB blocks in an SSB burst transmission, regardless of the beam used for transmission of the SSB blocks in the SSB burst transmission. Therefore, the bitmaps in the bitmap set 500 may not be beam-specific and may not enable pairing of synchronization signals for tracking and measurement. As shown in the bitmaps in the bitmap set 500, the base station will transmit SSB blocks at time slots 0-5 of the SSB burst transmission instead of time slots 6-7.

[0093] Figure 5A The bitmap set 510 may include three beam-specific bitmaps: Figure 1 , for the second beam Figure 2 and the position for the third beam Figure 3 Thus, the bitmap set 510 may indicate the location in a burst where the SSB block will be sent (such as the time within the burst) and the direction in which the SSB block will be sent (such as the beam direction of each beam-specific bitmap in the beam-specific bitmap). Figure 5B As shown in the bitmap set 510 of FIG. 5 , a base station sending a burst transmission described by the bitmap set 510 will send an SSB block in each of the time slots 0-5 but not in time slots 6-7. In addition, the SSB blocks sent at time slots 0 and 3 will be sent in the bitmap set 510. Figure 1 The SSB blocks sent in time slots 1 and 4 will be in position Figure 2 The second beam is transmitted in the second direction of the second beam, and the SSB blocks transmitted in time slots 2 and 5 will be at position Figure 3 However, the burst transmission will not include the Figure 1 The first beam of the first direction of the block 1-2 or 4-7, at the position Figure 2 The second direction of the second beam of the block 0, 2-3 and 5-7 or at the position Figure 3The SSB transmitted at blocks 0-1, 3-4, or 6-7 in the third direction of the third beam of Figure 5B and FIG. 5C to FIG. 5E The beam-specific bitmap of may enable the UE to generate and process measurement information for SSB blocks transmitted in a specific beam direction, such as SSB blocks transmitted in QCL or using the same TCI state. SSB blocks sharing the same beam direction according to the bitmap set 510 may be transmitted, for example, in an interleaved pattern, where one or more time slots lack an SSB transmission on the first beam between a first SSB block transmission on the first beam and a second SSB block transmission on the first beam. For the bitmap set 510, the maximum number of SSB blocks that may be transmitted in an SSB block burst transmission (L) may be 8, the number of SSB blocks actually transmitted in the SSB block burst transmission (L0) may be 6, and the number of beams (M) may be 3. Therefore, the beam-specific bitmap of the SSB block burst transmission described by the bitmap set 510 may be represented by a matrix of size M*L.

[0094] In some embodiments, Figure 5B The bitmap set can be applied to CD-SSB block burst transmission or NCD-SSB block burst transmission. Figure 5B The UE may receive a first number of beams from a base station on which SSB blocks are to be sent in an SSB block burst transmission for CD-SSB block burst transmission, together with a beam-specific bitmap set having a number of bitmaps equal to the first number (such as two or more beam-specific bitmaps). Similarly, the UE may receive a second number of beams from a base station on which SSB blocks are to be sent in an SSB block burst transmission for NCD-SSB block burst transmission, together with a second beam-specific bitmap set having a number of bitmaps equal to the second number (such as two or more beam-specific bitmaps). In some embodiments, the number of beams used for CD-SSB block burst transmission may be equal to the number of beams used for NCD-SSB block burst transmission. In some embodiments, the number of beams used for CD-SSB block burst transmission may be different from the number of beams used for NCD-SSB block burst transmission. In some embodiments, the beam-specific bitmap used for NCD-SSB block burst transmissions may be the same as the bitmap used for NCD-SSB block burst transmissions for the same beam, while in other embodiments, the bitmaps used for the same beam may be different.

[0095] The temporal and spatial pattern configuration of the SSB blocks in the SSB block burst transmission (such as the number of beams and / or beam-specific bitmaps used for the SSB block burst transmission) may be received, for example, by the UE from the base station in one or more information elements (such as one or more system information (SI), radio resource control (RRC), medium access control control element (MAC CE) or other information elements). The multiple beams may be received, for example, in a number-ssb-beams information element sent by the base station. The number of beams may be, for example, received by the UE in a number-ssb-beams information element. A binary bit string indicating a binary extension of the number of different beams used to transmit SSB blocks in an SSB block burst transmission, where L is equal to the maximum number of SSB blocks that can be transmitted in an SSB block burst transmission. For example, one or more beam-specific bitmaps may be received in one or more ssb-PositionsinBurst-QCL information elements.

[0096] Figure 5C The bitmap set 520 may, for example, represent three beams used to transmit SSB blocks in a continuously repeating pattern in an SSB block burst. SSB blocks on the same beam are transmitted in adjacent time slots in this pattern.

[0097] Figure 5D The bitmap set 530 may include two beam specific bitmaps. In some embodiments, the UE may be configured with different beam specific bitmap sets for CD-SSB block burst transmission and NCD-SSB block burst transmission. For example, in some embodiments, the CD-SSB blocks in the CD-SSB block burst transmission may be transmitted in three directions of three beams, and thus may be represented by a bitmap set including three beam specific bitmaps such as Figure 5B The NCD-SSB block in the NCD-SSB block burst transmission may be transmitted in two directions of two beams, and thus may be indicated by a bitmap set including two beam-specific bitmaps such as Figure 5D The bitmap set 530 is used to indicate.

[0098] In some embodiments, the SSB blocks in an SSB block burst transmission may be spatially divided multiplexed (SDM) such that the SSB blocks in an SSB block burst transmission may be transmitted simultaneously (such as in the same time slot of the burst transmission, but in different directions of different beams). For example, Figure 5EThe bitmap set 540 includes a first bitmap indicating that the first SSB block is transmitted in the first direction of the first beam in the first time slot (time slot 0) of the SSB block burst transmission and the second SSB block is transmitted in the first direction of the first beam in the second time slot (time slot 1) of the SSB block burst transmission, and a second bitmap indicating that the third SSB block is transmitted in the second direction of the second beam in the first time slot (time slot 0) of the SSB block burst transmission and the fourth SSB block is transmitted in the second direction of the second beam in the second time slot (time slot 1) of the SSB block burst transmission. For another example, Fig. 5F The bitmap set 550 includes the SSB blocks transmitted in time slot 0 and time slot 2 by space division multiplexing. In addition, the bitmap set 550 includes a first bitmap (bit Figure 1 ) and the second bitmap (bit Figure 2 ), the first bitmap is organized by interleaved pairing of SSB blocks sent in a first direction of a first beam, and the second bitmap is organized by consecutive pairing of SSB blocks sent in a second direction of a second beam. Therefore, the beam-specific bitmap can describe multiple organizational methods of SSB block burst transmission, and can be used by the UE to perform pairing tracking, measurement and processing of SSBs in SSB block burst transmissions sent in the same direction of the same beam.

[0099] Figure 6 An example graph 600 of SSB burst transmissions over time is shown, for which measurement information may be generated by a UE using a beam-specific bitmap. SSB burst transmissions 608A-608C may be CD-SSB block burst transmissions that are sent multiple times by a base station at the same frequency. SSB burst transmissions 604-606 may be NCD-SSB block burst transmissions that are sent at different frequencies. The CD-SSB block burst transmissions may, for example, include an SSB block associated with a first bitmap and sent in a first direction of a first beam, an SSB block associated with a second bitmap and sent in a second direction of a second beam, and an SSB block associated with a third bitmap and sent in a third direction of a third beam. The SSB blocks in the CD-SSB block burst transmissions 608A-608C may be transmitted in an interleaved pattern (such as Figure 5BThe first NCD-SSB block burst transmission 604 may include SSB blocks transmitted in the first time slot, the second time slot, the fourth time slot, the fifth time slot, and the sixth time slot of the first NCD-SSB block burst transmission 604, but may not include the SSB block in the third time slot of the NCD-SSB block burst transmission 604. The first NCD-SSB block burst transmission 604 may be described by the first bitmap and the second bitmap for the first beam and the second beam. The second NCD-SSB block burst transmission 606 may include SSBs transmitted in the same direction of the same beam as the first NCD-SSB block burst transmission 604 but in a different order, and therefore may be described by a second bitmap set (such as the third bitmap and the fourth bitmap for the first beam and the second beam).

[0100] The UE may generate measurement information for one or more SSB blocks in the CD-SSB block burst transmissions 608A-608C using beam-specific bitmaps, such as bitmaps in the bitmap set 510, and generate measurement information for one or more SSB blocks in the NCD-SSB block burst transmissions 604 and 606 using beam-specific bitmaps specific to the NCD-SSB block burst transmissions 604 and 606. For example, at a first time, the UE may be configured to operate in a first bandwidth portion 608, such as performing one or more measurements in the first bandwidth portion, the first bandwidth portion including the frequency range used to transmit the CD-SSB block burst transmission 608A. During the first time, the UE may generate measurement information for one or more SSB blocks in the CD-SSB block burst transmission 608A. During a second time, the UE may be configured to operate in a second bandwidth portion 610, such as performing one or more measurements in the second bandwidth portion, the second bandwidth portion including the frequency range used to transmit the NCD-SSB block burst transmission 604, but excluding the frequency range used to transmit the CD-SSB block burst transmission 608B. During a second time, the UE may generate measurement information for one or more SSB blocks in the NCD-SSB block burst transmission 604. During a third time, the UE may be configured to operate in a third bandwidth portion 612, such as performing one or more measurements in the third bandwidth portion, the third bandwidth portion including the frequency range used to transmit the NCD-SSB block burst transmission 608C and also including the frequency range used to transmit the CD-SSB block burst transmission 606. During the third time, the UE may generate measurement information for one or more SSB blocks in the CD-SSB block burst transmission 608C and for one or more SSB blocks in the NCD-SSB block burst transmission 606. Using the beam-specific bitmap, the UE may pair measurements, sensing, or processing of measurement and sensing information for SSB blocks in SSB block burst transmissions 608A-608C, 604, or 606 transmitted in the same direction of the same beam. Such pairing may be referred to as intra-burst pairing. As a specific example, in intra-burst pairing, the UE may pair measurement, sensing, or processing of measurement and sensing information for the first SSB block and the fourth SSB block in the CD-SSB block burst transmission 608A.

[0101] In some embodiments, the UE may pair measurement, sensing, or processing of measurement and sensing information for SSB blocks in the same direction sharing the same beam transmitted across multiple SSB block bursts. Fig. 7A The example bitmap set 700 shown in FIG. 7 may include three beam-specific bitmaps for a first SSB block burst transmission, including a bitmap for a first beam, namely, a bitmap for a second beam, and a bitmap for a third beam. Figure 1 , the bitmap for the second beam is Figure 2, and the bitmap for the third beam is Figure 3 The first SSB block burst transmission may include up to four SSB blocks. For example, Figure 7B The example bitmap set 710 may include two beam-specific bitmaps for the second SSB block burst transmission, the two beam-specific bitmaps including the bitmap for the first beam, namely, the bitmap Figure 1 and the bitmap for the second beam is Figure 2 The second SSB block burst transmission may include at most two SSB blocks. Figure 7C The example bitmap set 710 may include two beam-specific bitmaps for the third SSB block burst transmission, the two beam-specific bitmaps including the bitmap for the first beam, namely, the bitmap Figure 1 and the bitmap for the third beam is Figure 3 The third SSB block burst transmission may include up to four SSB blocks. The first SSB block burst transmission, the second SSB block burst transmission, and the third SSB block burst transmission may be CD-SSB block burst transmission or NCD-SSB block burst transmission. For example, Fig. 7A The bitmap set 700 may provide SSB block transmission information for a first NCD-SSB block burst transmission, Figure 7B The bitmap set 710 may provide SSB block transmission information for the second NCD-SSB block burst transmission, and Figure 7C The bitmap set 720 may provide SSB block transmission information for a third NCD-SSB block burst transmission. Thus, the first NCD-SSB block burst transmission includes SSB blocks transmitted in the directions of the first beam, the second beam, and the third beam, the second NCD-SSB block burst transmission includes SSB blocks transmitted in the directions of the first beam and the second beam, and the third NCD-SSB block burst transmission includes SSB blocks transmitted in the directions of the first beam and the third beam. The UE may store multiple beam-specific bitmaps for multiple different SSB block burst transmissions, and may use these bitmaps to pair measurements, sensing, or processing of measurement and sensing information for SSB blocks transmitted in the same direction of the same beam but in different SSB block burst transmissions. Such pairing may be referred to as inter-burst pairing.

[0102] Figure 8 An example diagram 800 of SSB blocks in an SSB block burst transmission is shown in FIG. 800 , which may be paired for measurement, sensing, or processing across multiple SSB block burst transmissions. For example, CD-SSB block burst transmissions 802A-802B may be transmitted on the same frequency and may correspond to Fig. 7AThe bitmap set 700 of FIG. 10A shows a first beam of a first direction of a first beam of a first SSB block, such as a first SSB block in a CD-SSB block burst transmission 802A-802B, which can be paired for measurement, sensing, or processing. The NCD-SSB block burst transmissions 804A-D can be transmitted on different frequencies. The NCD-SSB block burst transmissions 804A and 804D can correspond to Figure 7B The bitmap set 710, NCD-SSB block burst transmission 804B may correspond to Figure 7C The bitmap set 720, and the NCD-SSB block burst transmission 804C may correspond to Fig. 7A A set of bitmaps 700. By using beam-specific bitmaps such as 7A to 7C A beam-specific bitmap is used for each SSB block burst transmission, and SSB blocks sent in the same direction of the same beam may be paired for measurement, sensing, or processing. Such pairing may, for example, include measuring, by the UE, an SSB block sent in a specific direction of a specific beam selected by the UE, while abandoning measurements of other SSBs sent in other directions of other beams. For example, the UE may pair measurements of SSBs indicated by a first bitmap in a set of multiple bitmaps, the first bitmap indicating an SSB sent in a first direction of a first beam across multiple SSB block burst transmissions. For example, the UE may pair measurements, sensing, or processing of a first SSB block in NCD-SSB burst transmission 804A, a first SSB block in NCD-SSB burst transmission 804B, a first SSB block in NCD-SSB burst transmission 804C, and a first SSB block in NCD-SSB burst transmission 804D for measurement, sensing, or processing. In some embodiments, the UE may pair the measurement, sensing, or processing of SSB blocks transmitted in the first direction of the first beam in both the CD-SSB block burst transmission and the NCD-SSB block burst transmission (such as the first block in the CD-SSB block burst transmission 802A and the first block in the NCD-SSB block burst transmission 804A). Figure 6 In the described operations, the UE may operate at different times in different bandwidth parts, such as the first bandwidth part 806, the second bandwidth part 808, and the third bandwidth part 810 to measure, sense, or process SSB blocks included in SSB block burst transmissions sent on frequencies within the corresponding bandwidth parts. As discussed herein, pairing of measurements, sensing, or processing of SSB blocks sent in the same direction of the same beam for different SSB bursts (such as pairing of measurements, sensing, or processing of the first SSB block in SSB burst 804A and the first SSB block in SSB burst 804C) may be referred to as inter-burst pairing.

[0103] The UE may also pair the measurement of SSB blocks sent in the same direction of the same beam as the uplink transmission or downlink transmission (such as sent in the same QCL state or TCI state) to synchronize with the base station. For example, a UE supporting dual connectivity or carrier aggregation may receive NCD-SSB block burst transmissions on a PCell, PSCell, or SCell. In order to synchronize the transmission of uplink transmissions to a base station or the reception of downlink transmissions from a base station and meet timing accuracy requirements, the UE may sense or measure SSB blocks sent in the same direction of the same beam as the uplink transmission or downlink transmission within a maximum time period before starting the uplink transmission or downlink transmission. The UE may receive an indication of such a maximum time period from the base station. For example, the base station may set the length of the maximum time period and may notify the UE of the length. The maximum time period may be set, for example, based on a minimum performance requirement associated with the UE capability. Fig. 9 An example diagram 900 of the transmission of an SSB block that may be sensed to meet timing requirements is shown in FIG. In some embodiments, the CD-SSB block burst transmissions 902A-902B may be transmitted at a first period 908. However, such a period 908 may be greater than a maximum time period between the sensing of an SSB block transmitted in a beam direction and the reception of a downlink transmission or the transmission of an uplink transmission in the beam direction. The base station may transmit at certain intervals and the UE may measure the NCD-SSB block burst transmissions at certain intervals such that the time between the end of the NCD-SSB block burst transmission and the start of an uplink transmission or a downlink transmission in the same direction of the same beam as the NCD-SSB block burst transmission is less than the maximum time period. Therefore, channel-to-channel pairing of SSB burst transmissions and uplink or downlink channel transmissions may be used to map the SSB block transmissions and the uplink or downlink channel to radio resources for synchronized uplink transmissions and downlink transmissions.

[0104] The UE may receive from the first base station a first downlink transmission 906A and a second downlink transmission 906D, such as a physical downlink control channel transmission or a physical downlink shared channel transmission, sent in a first direction of the first beam (such as transmitted using a spatial filter corresponding to the TCI state of the first reference SSB block). For example, the first block in the CD-SSB block burst transmissions 902A-902B may be the first reference SSB block. The UE may receive from the first base station a third downlink transmission 906B and a fourth downlink transmission 906E, such as a physical downlink control channel transmission or a physical downlink shared channel transmission, sent in a second direction of the second beam, which may be the same direction of the same beam as the second block in the CD-SSB block burst transmissions 902A-902B. The UE may receive from the first base station a fifth downlink transmission 906C, such as a physical downlink control channel transmission or a physical downlink shared channel transmission, sent in a third direction of the third beam, which may be the same direction of the same beam as the third block in the CD-SSB block burst transmissions 902A-902B. The UE may send a first uplink transmission 906F, such as a physical uplink control channel transmission or a physical uplink shared channel transmission, to the first base station in a third direction of the third beam.

[0105] The NCD-SSB burst transmissions 904A-904D may be sensed by the UE to allow the UE to synchronize the timing of receiving or transmitting information in the same direction as the NCD-SSB burst transmissions 904A-904D. For example, the first NCD-SSB burst transmission 904A may be transmitted in the third direction of the third beam. The time 910 between the end of the first NCD-SSB burst transmission 902A and the beginning of the fifth downlink transmission 906C may be greater than the maximum time period. However, the time 912 between the end of the first NCD-SSB transmission 904A transmitted in the same direction of the same beam as the fifth downlink transmission 906C and the beginning of the fifth downlink transmission 906C may be less than the maximum time period. Therefore, the UE may perform one or more measurements of the first SSB block burst transmission 904A to synchronize the reception of the fifth downlink transmission 906C from the base station. The SSB block measured to synchronize such reception may be referred to as a reference SSB block, for example.

[0106] As another example, the fourth NCD-SSB block burst transmission 904D may be transmitted in the third direction of the third beam. The time between the end of the first CD-SSB burst transmission 902A and the start of the first uplink transmission 906F may be greater than the maximum time period. However, the time 914 between the end of the fourth NCD-SSB transmission 904D transmitted in the same direction of the same beam as the first uplink transmission 906F and the start of the first uplink transmission 906F may be less than the maximum time period. Therefore, the UE may perform one or more measurements of the fourth SSB block burst transmission 904D to synchronize the transmission of the first uplink transmission 906F to the base station. The SSB block measured to synchronize such transmission may be referred to as a reference SSB block, for example. Therefore, the NCD-SSB block or CD-SSB block may be time-division multiplexed with the uplink transmission and downlink transmission in the same direction of the same beam, and sent by the base station with a configurable gap between the NCD-SSB block or CD SSB block and the uplink transmission or downlink transmission that is less than the maximum time period.

[0107] Fig.10 An example process 1000 for pairing synchronization signals for tracking and measurement is shown in the process diagram of FIG. The operations of process 1000 may be performed by a UE (such as the one described above with reference to FIG. Figure 1 , Figure 2 , Figure 4 and Fig.12 For example, the example operations (also referred to as "blocks") of process 1000 may enable UE 115 to support pairing of synchronization signals for tracking and measurement.

[0108] At block 1002, the UE may receive an indication of a first number of beams from a base station. The indication may, for example, indicate the number of beams that the base station will use to transmit one or more SSB blocks in an SSB block burst transmission, such as a CD-SSB block burst transmission or an NCD-SSB block burst transmission. In some embodiments, the UE may receive multiple indications of multiple corresponding numbers of beams, such as the number of beams for each SSB block burst transmission in the plurality of SSB block burst transmissions. In some embodiments, the UE may receive a single indication of a single number of beams for the plurality of SSB block burst transmissions.

[0109] At block 1004, the UE may receive bitmap information including a first bitmap and a second bitmap corresponding to a first beam and a second beam from a base station. For example, the first bitmap and the second bitmap may correspond to a first beam and a second beam for transmitting an SSB block within an SSB block burst transmission. The first bitmap may correspond to a first beam in a first number of beams, and may indicate a first time set at which a first SSB block set is transmitted by the base station in a first direction of the first beam. The second bitmap may correspond to a second beam in the first number of beams that is different from the first beam, and may indicate a second time set at which a second SSB block set is transmitted by the base station in a second direction of the second beam. For example, in an SSB block burst transmission, one or more SSB blocks may be transmitted in a first direction of the first beam, and one or more SSB blocks may be transmitted in a second direction of the second beam. The transmission of such SSB blocks may be indicated by the first bitmap and the second bitmap received by the UE in the bitmap information. The first direction of the first beam may, for example, correspond to a first TCI state or a first QCL state of the first beam, and the second direction of the second beam may, for example, correspond to a second TCI state or a second QCL state of the second beam. Therefore, SSB blocks sent in the same direction of the same beam may share the QCL state or TCI state associated with the beam. The bitmap in the bitmap information may be cell-specific, applied to each UE connected to a single cell; may be group-specific, applied to a specific group of UEs connected to the cell; or may be UE-specific, applied to a single UE. In some embodiments, the received bitmap information may include one or more bitmaps for reconfiguring the UE's reception of CD-SSB block transmissions, such as reconfiguring the UE's generation of measurement information for CD-SSB block transmissions after the UE is connected to a base station. For example, after the UE is connected to a transmitting base station, the bitmap information may be used to reconfigure the transmission mode of the SSB blocks in the CD-SSB block burst transmission.

[0110] In some embodiments, the bitmap information may include a first bitmap set indicating the time when the NCD-SSB block is sent and a second bitmap set indicating the time when the CD-SSB block is sent. That is, some bitmaps may be applicable to NCD-SSB block burst transmissions, some bitmaps may be applicable to CD-SSB block burst transmissions, and some bitmaps may be applicable to both NCD-SSB block burst transmissions and CD-SSB block burst transmissions. In some embodiments, the bitmap information may include a bitmap number for the number of beams used for CD-SSB block burst transmissions that is different from the bitmap number included for the number of beams used for NCD-SSB block burst transmissions.

[0111] In some embodiments, the bitmap information may include more than two bitmaps. For example, the bitmap information may include a third bitmap. The third bitmap may correspond to the first beam and may indicate a third set of times at which a third set of SSB blocks is transmitted by the base station in the first direction of the first beam. For example, the UE may receive multiple bitmaps for different SSB block burst transmissions for the same beam. Such bitmaps may be used for burst pairing of measurements, sensing, or processing of SSB blocks transmitted in the same direction of the same beam.

[0112] The bitmap in the bitmap information may, for example, include a series of 1s and 0s, wherein 1 indicates that an SSB block will be sent in a time slot in an SSB burst transmission in a beam direction of the bitmap, and 0 indicates that an SSB block will not be sent in a time slot in an SSB burst transmission in a beam direction of the bitmap. Therefore, the first bitmap may indicate that a third time set of SSB blocks in a first SSB block set will not be sent by the base station in a first direction of the first beam. The bitmap may indicate different modes of SSB block transmission in a specific direction of a specific beam, such as interleaved pairing, continuous pairing, and space division multiplexing of SSB blocks in SSB block burst transmission. For example, the first bitmap may indicate that one or more time slots between two transmissions of an SSB block in a first direction of the first beam do not include the SSB block transmission in the first direction of the first beam. Such a mode may be referred to as interleaved pairing. For another example, the second bitmap in the bitmap information may indicate that the time slots in which beams are transmitted in a second direction of the second beam are adjacent to each other. Such a transmission mode may be referred to as continuous pairing. In some embodiments, the first bitmap and the second bitmap may indicate that the SSB blocks in the SSB block burst transmission are transmitted in the same time slot but in different directions of different beams. Such a transmission mode is called a spatial division multiplexing mode.

[0113] At block 1006, the UE may receive activation information from the base station. For example, when the UE receives the bitmap information and an indication of the first number of beams, the UE may store the information in a memory. In some embodiments, the bitmap information may be activated upon reception, and the UE may begin using the bitmap information to generate measurement information immediately after reception, such as for sensing one or more SSB blocks indicated by the bitmap information. In other embodiments, the UE may wait to receive activation information from the base station, the activation information indicating that the UE begins using the bitmap information to generate measurement information. The activation information may include system information, radio resource control information, medium access control control element information, or downlink control information. Therefore, in some embodiments, the UE may wait to receive the activation information and then generate the measurement information based on the received bitmap information.

[0114] At block 1008, the UE may send a request to the base station for an SSB block transmission. The request may be a request to send an NCD-SSB block. In some embodiments, such as when the base station is configured to periodically send SSB blocks (such as in an SSB block burst transmission), the UE may not send such a request. In some embodiments, such as when the base station is configured to semi-statically or aperiodically send SSB blocks, the base station may wait until a request to send one or more SSB blocks is received from the UE, and the UE may send such a request to trigger the base station's SSB block transmission.

[0115] At block 1010, the UE may receive a downlink transmission. For example, the UE may measure one or more SSB blocks sent by a base station within a maximum time period before receiving the downlink transmission, such as with respect to Fig. 9 As described, the reception of a downlink transmission transmitted using the same direction of the same beam as the first reference SSB block is synchronized. Thus, the UE may receive a downlink transmission transmitted in a first direction of the first beam from the base station. The first direction may be, for example, the first direction of the first reference SSB block in the first SSB block set, and the first reference SSB block in the first SSB block set may be time-division multiplexed with the downlink transmission. The first reference SSB block may therefore be in a QCL state with the downlink transmission. The downlink transmission may be received by the UE within a time period (such as within a maximum time period) from the end of reception of the first reference SSB block. In such embodiments, the measurement information generated at block 1014 may include measurement information corresponding to the first reference SSB block. For example, the UE may measure the first reference SSB block to synchronize the timing for receiving the downlink transmission from the base station. In some embodiments, the first time period (such as the maximum time period) may be signaled to the UE by the base station. In some embodiments, the base station or UE may determine the maximum time period based on one or more characteristics of the UE or base station (such as one or more hardware characteristics of the UE or base station).

[0116] At block 1012, the UE may send an uplink transmission. For example, the UE may measure one or more SSB blocks sent by the base station within a maximum time period before sending the uplink transmission, such as with respect to Fig. 9As described, to synchronize the transmission of an uplink transmission sent using the same direction of the same beam as the first reference SSB block. Thus, the UE may send an uplink transmission to the base station in a first direction of the first beam. The first direction may be, for example, a first direction of a first reference SSB block in a first SSB block set, and the first reference SSB block in the first SSB block set may be time-division multiplexed with the uplink transmission. The first reference SSB block may therefore be in a QCL state with the downlink transmission, and the UE may apply a spatial filter corresponding to the TCI state of the first reference SSB block to the uplink transmission. The uplink transmission may be sent by the UE within a time period (such as within a maximum time period) from the end of reception of the first reference SSB block. In such embodiments, the measurement information generated at box 1014 may include measurement information corresponding to the first reference SSB block. For example, the UE may measure the first reference SSB block to synchronize the timing for sending the uplink transmission from the base station. In some embodiments, the first time period (such as a maximum time period) may be signaled to the UE by the base station.

[0117] At block 1014, the UE may generate measurement information based on the bitmap information. For example, the UE may sense or measure one or more SSB blocks indicated by the bitmap information, such as one or more SSB blocks sent in the same direction of the same beam. The UE may, for example, measure one or more SSB blocks indicated by the first bitmap and one or more SSB blocks indicated by the second bitmap to generate first measurement information. Such measurement information may include a measurement of the timing of one or more SSB blocks, a measurement of the signal strength of one or more SSB blocks, or other measurements of one or more SSB blocks. In some embodiments, the generation of measurement information may also be based on activation information, as described with respect to block 1006. The generation of measurement information may include processing one or more measurements of one or more SSB blocks. The UE may pair measurements of SSB blocks sent in the same direction of the same beam for processing. In some embodiments, when an indication or bitmap information for a first number of beams is not received, the UE may generate measurement information using a default configuration. For example, the UE may generate measurement information using a non-beam-specific bitmap for SSB block burst transmission.

[0118] In some embodiments, the SSB blocks in the first set of SSB blocks may include a primary synchronization signal (PSS), a physical broadcast channel (PBCH), and a secondary synchronization signal (SSS). The generated measurement information may, for example, correspond to the SSS. For example, when generating the measurement information, the UE may measure the SSS of the SSB blocks. In some embodiments, the UE may avoid performing one or more measurements on the PSS or PBCH and only perform one or more measurements on the SSS.

[0119] At block 1016, the UE may synchronize with the base station based on the measurement information. For example, the UE may use timing measurements of one or more SSB blocks to synchronize with the base station. For another example, the UE may use the measurement information to determine a center frequency of a physical broadcast channel (PBCH).

[0120] Fig.11 An example process 1100 for tracking and measuring the pairing of synchronization signals is shown in the process diagram of FIG. The operations of process 1100 may be performed by a base station (such as the one described above with reference to FIG. Figure 1 , Figure 2 , Figure 4 and Fig.13 For example, the example operations (also referred to as "blocks") of process 1100 may enable base station 105 to support pairing of synchronization signals for tracking and measurement.

[0121] At block 1102, a base station may generate an indication of a first number of beams. For example, the base station may determine the number of beams that the base station will use to transmit one or more SSB blocks in an SSB block burst transmission. The first number of beams may be Fig.10 A first number of beams are received by a base station at block 1002 of FIG.

[0122] At block 1104, the base station may generate bitmap information including a first bitmap and a second bitmap corresponding to the first beam and the second beam. For example, the base station may determine in which time slots and in which directions of which beams the base station will transmit one or more SSB blocks for one or more SSB block burst transmissions, and may generate one or more bitmaps based on the determination. The bitmap information may be, for example, in Fig.10 The bitmap information received by the UE at box 1004.

[0123] At block 1106, the base station may send an indication of the first number of beams and bitmap information. In some embodiments, the indication of the first number and the bitmap information may be sent in separate messages, while in other embodiments, the indication and the bitmap information may be sent in the same message. The indication of the first number of beams and the bitmap information may be sent, for example, in one or more information elements of an SI, RRC, or MAC CE. For example, the indication of the first number of beams may be sent as a binary number in a number-ssb-beams information element, and each bitmap may be sent as a binary bitmap in a corresponding ssb-PositionsinBurst-QCL information element.

[0124] At box 1108, the base station may send activation information. For example, in some embodiments, the UE may activate upon reception and begin using the bitmap information and the indication of the first number of beams to generate measurement information. However, in some embodiments, the UE will wait to receive the activation information and then begin using the indication of the first number of beams and the bitmap information to generate measurement information. Therefore, the base station may send the indication of the first number of beams and the bitmap information to the UE in advance for the UE to store, and may send the activation information to the UE to indicate when the UE starts using the bitmap information and the indication of the first number of beams. In some embodiments, the base station may send the activation information in the same message as the indication of the first number of beams and the bitmap information to instruct the UE to start using the bitmap information and the indication of the first number of beams to generate measurement information upon receiving the activation information.

[0125] At block 1110, the base station may receive a request to send an SSB block. Such a request may be, for example, regarding Fig.10 The base station may receive such a request as described in block 1008 of . For example, when the base station is configured to send SSB block bursts in an aperiodic or semi-static configuration, the base station may receive such a request. In some embodiments, the request to send an SSB block may also include a request for a number of beams and bitmap information for the requested SSB block. In such embodiments, in response to the request to send an SSB block, the base station may send and the UE may receive an indication of the number of beams and the bitmap information.

[0126] At block 1112, the base station may transmit one or more SSB blocks in a first direction of a first beam. For example, the base station may transmit one or more SSB blocks in a first SSB block burst transmission indicated by a first bitmap in the bitmap information. In some embodiments, such transmission may be performed based on receiving a request to transmit an SSB block at block 1110.

[0127] At block 1114, the base station may transmit one or more SSB blocks in a second direction of the second beam. For example, the base station may transmit one or more SSB blocks in a first SSB block burst transmission or a second SSB block burst transmission indicated by a second bitmap in the bitmap information. In some embodiments, such transmission may be performed based on receiving a request to transmit an SSB block at block 1110. In some embodiments, the one or more SSB blocks transmitted in the second direction of the second beam may be transmitted as part of the same SSB block burst transmission as the one or more SSB blocks transmitted in the first direction of the first beam described with respect to block 1112.

[0128] At block 1116, the base station may send a downlink transmission. The downlink transmission may be, for example, about Fig.10For example, the downlink transmission may be sent using a spatial filter corresponding to a transmit control information (TCI) state of a first reference SSB block that is sent by the base station at block 1112 or block 1114 and measured by the UE and received by the UE in a time period prior to the downlink transmission being received by the UE. At block 1118, the base station may receive an uplink transmission. The uplink transmission may be, for example, about Fig.10 Thus, the base station may send an indication of the first number of beams and bitmap information to the UE for use by the UE in generating measurement information of the SSB blocks sent by the base station to the UE.

[0129] Fig.12 1 is a block diagram of an example UE 1200 that supports pairing of synchronization signals for tracking and measurement according to one or more aspects. The UE 1200 may be configured to perform operations, including reference Fig.10 In some implementations, the UE 1200 includes a reference Figures 1 to 3 and Figure 4 1 and 12. The UE 1200 may be a wireless communication device that is configured to communicate with the user through the wireless communication device 1201. The UE 1200 may be a wireless communication device that is configured to communicate with the user through the wireless communication device 1201. The UE 1200 may be a wireless communication device that is configured to communicate with the user through the wireless communication device 1201. The UE 1200 may be a wireless communication device that is configured to communicate with the user through the wireless communication device 1201. Figure 2 , illustrated for UE 115, includes modulators and demodulators 254a-254r, a MIMO detector 256, a receive processor 258, a transmit processor 264, and a TX MIMO processor 266.

[0130] As shown, the memory 282 may include beam quantity information 1202, SSB bitmap information 1204, SSB activation information 1206, SSB request logic 1206, SSB information receiving logic 1210, and SSB measurement and synchronization logic 1212. The beam quantity information 1202 may include one or more numbers of beams used by the base station to transmit SSB blocks in one or a corresponding SSB block burst set. The SSB bitmap information 1204 may include one or more bitmaps corresponding to the one or more numbers of beams in the beam quantity information 1202. For example, the SSB bitmap information may include multiple beam-specific bitmaps for a single beam, where each bitmap is applied to a different SSB block burst transmission. The SSB bitmap information 1204 may also include multiple corresponding beam-specific bitmaps for multiple corresponding beams for a single SSB block burst transmission. The SSB activation information 1206 may include one or more indications of whether one or more bitmaps in the SSB bitmap information 1204 are activated. Instructions for activating the SSB bitmap may be received, for example, from a base station. The SSB request logic 1208 may be configured to send a request for one or more SSB blocks to be sent by the base station. Such a request may include a request for beam quantity information or SSB bitmap information from the base station. The SSB information receiving logic 1210 may be configured to receive SSB information from the base station, such as beam quantity information 1202, SSB bitmap information 1204, and SSB activation information 1206. The SSB measurement and synchronization logic 1212 may be configured to generate measurement information based on the SSB bitmap information 1204 or the SSB activation information, and perform synchronization with the base station based on the generated measurement information. The UE 1200 may receive information from one or more network entities (such as Figure 1 to Figure 2 and Figure 4 Base station 105 or Fig.13 The illustrated base station) receives a signal or sends a signal to the one or more network entities.

[0131] Fig.13 1 is a block diagram of an example base station 1300 that supports pairing of synchronization signals for tracking and measurement according to one or more aspects. The base station 1300 may be configured to perform operations, including reference Fig.11 In some implementations, the base station 1300 includes a block of the process 1100 described above. Figure 1 to Figure 2 and Figure 4105 of the present invention. For example, the base station 1300 may include a controller 240 that operates to execute logic or computer instructions stored in a memory 242 and controls components of the base station 1300 that provide the features and functionality of the base station 1300. The base station 1300 transmits and receives signals via radios 1301a-1301t and antennas 234a-234t under the control of the controller 240. The radios 1301a-1301t include various components and hardware, such as those described in Figure 2 , illustrated for base station 105, includes modulators and demodulators 232a-232t, a transmit processor 220, a TX MIMO processor 230, a MIMO detector 236, and a receive processor 238.

[0132] As shown, the memory 242 may include beam quantity information 1302, SSB bitmap information 1304, SSB activation information 1306, SSB information generation logic 1308, and SSB transmission logic 1310. The beam quantity information 1302 may include one or more numbers of beams used by the base station to transmit an SSB block in one or a corresponding SSB block burst set. In some embodiments, the beam quantity information 1302 may include beam quantity information specific to all UEs connected to the base station 1300, specific to a group of UEs connected to the base station, or specific to a specific UE. The SSB bitmap information 1304 may include one or more bitmaps corresponding to one or more numbers of beams in the beam quantity information 1302. For example, the SSB bitmap information 1304 may include multiple beam-specific bitmaps for a single beam, each bitmap being applied to a different SSB block burst transmission. The SSB bitmap information 1304 may also include multiple corresponding beam-specific bitmaps for multiple corresponding beams for a single SSB block burst transmission. In some embodiments, the SSB bitmap information 1304 may include SSB bitmap information specific to all UEs connected to the base station 1300, specific to a group of UEs connected to the base station, or specific to a specific UE. The SSB activation information 1306 may include one or more indications of whether one or more bitmaps in the SSB bitmap information 1304 are activated. The instruction for activating the SSB bitmap may be sent, for example, by the base station 1300. In some embodiments, the SSB activation information 1306 may include SSB activation information 1306 specific to all UEs connected to the base station 1300, specific to a group of UEs connected to the base station 1300, or specific to a specific UE. The SSB information generation logic 1308 may be configured to generate the beam quantity information 1302, the SSB bitmap information 1304, and the SSB activation information 1306. The SSB transmission logic 1310 may be configured to send the beam quantity information 1302, the SSB bitmap information 1304, the SSB activation information 1306, or one or more SSB blocks to one or more UEs. The base station 1300 may receive information from one or more UEs (such as Figures 1 to 3 and Figure 4 UE 115 or Fig.12 UE1200) receives a signal or sends a signal to the one or more UEs.

[0133] It should be noted that the reference Figure 10 to Figure 11 One or more blocks (or operations) described herein may be combined with one or more blocks (or operations) described in another figure in the referenced figure. Fig.10 One or more boxes (or operations) of Fig.11 One or more boxes (or operations) of . Fig.10 One or more boxes associated with Figures 1 to 3 or Figure 4One or more associated boxes (or operations) are combined. Additionally or alternatively, the above reference Figures 1 to 3 or Figure 4 One or more of the operations described may be combined with reference to Fig.12 or Fig.13 A combination of one or more of the operations described.

[0134] In one or more aspects, techniques for supporting pairing of synchronization signals for tracking and measurement may include additional aspects, such as any single aspect or any combination of aspects described below or in combination with one or more other processes or devices described elsewhere herein. In a first aspect, supporting pairing of synchronization signals for tracking and measurement may include an apparatus configured to: receive an indication of a first number of beams from a second network node; receive bitmap information from the second network node, wherein the bitmap information includes a first bitmap and a second bitmap, wherein the first bitmap corresponds to a first beam in the first number of beams and indicates a first time set of a first synchronization signal physical broadcast channel (SSB) block set sent by the second network node in a first direction of the first beam, and wherein the second bitmap corresponds to a second beam in the first number of beams and indicates a second time set of a second SSB block set sent by the second network node in a second direction of the second beam; and generate first measurement information based on the bitmap information. Additionally, the apparatus may be performed or operated according to one or more aspects as described below. In some implementations, the apparatus includes a wireless device, such as a UE. In some specific implementations, the device may include at least one processor, and a memory coupled to the processor. The processor may be configured to perform the operations described herein with respect to the device. In some other specific implementations, the device may include a non-transitory computer-readable medium having a program code recorded thereon, and the program code may be executable by a computer to cause the computer to perform the operations described herein with reference to the device. In some specific implementations, the device may include one or more components configured to perform the operations described herein. In some specific implementations, the method of wireless communication may include one or more operations described herein with reference to the device.

[0135] In a second aspect, either alone or in combination with one or more of the above aspects, the first set of SSB blocks and the second set of SSB blocks include cell definition SSB (CD-SSB) blocks.

[0136] In a third aspect, alone or in combination with one or more of the above aspects, the first set of SSB blocks and the second set of SSB blocks include non-cell definition SSB (NCD-SSB) blocks.

[0137] In a fourth aspect, alone or in combination with one or more of the above aspects, the apparatus may be configured to synchronize the first network node with the second network node based on the first measurement information.

[0138] In a fifth aspect, either alone or in combination with one or more of the above aspects, the apparatus may be configured to synchronize the first network node with the second network node based on the first measurement information by determining a center frequency of a physical broadcast channel (PBCH).

[0139] In a sixth aspect, either alone or in combination with one or more of the above aspects, the apparatus may be configured to generate first measurement information based on the bitmap information by generating first measurement information based on the first bitmap or the second bitmap.

[0140] In a seventh aspect, either alone or in combination with one or more of the above aspects, the first direction of the first beam corresponds to a first transmit configuration indication (TCI) state of the first beam, and wherein the second direction of the second beam corresponds to a second TCI state of the second beam

[0141] In an eighth aspect, either alone or in combination with one or more of the above aspects, the first direction of the first beam corresponds to a first quasi-co-sited (QCL) state of the first beam, and the second direction of the second beam corresponds to a second quasi-co-sited (QCL) state of the second beam.

[0142] In a ninth aspect, either alone or in combination with one or more of the above aspects, the bitmap information includes a first bitmap set indicating the time when the NCD-SSB block is sent and a second bitmap set indicating the time when the CD-SSB block is sent, and wherein the first set is different from the second set.

[0143] In a tenth aspect, either alone or in combination with one or more of the above aspects, the bitmap information further comprises a third bitmap, and the third bitmap corresponds to the first beam and indicates a third time set at which a third SSB block set is sent by the second network node in the first direction of the first beam.

[0144] In an eleventh aspect, alone or in combination with one or more of the above aspects, the apparatus may be configured to receive a downlink transmission sent in the first direction from the second network node, wherein the first direction is a first direction of a first reference SSB block in the first SSB block set, and wherein the first reference SSB block in the first SSB block set is time division multiplexed with the downlink transmission, wherein the at least one processor is configured to receive the downlink transmission from the second network node within a time period starting from the end of reception of the first reference SSB block, and wherein the first measurement information includes first measurement information corresponding to the first reference SSB block.

[0145] In a twelfth aspect, alone or in combination with one or more of the above aspects, the time period is signaled by the second network node to the first network node.

[0146] In the thirteenth aspect, alone or in combination with one or more of the above aspects, the device may be configured to send an uplink transmission to the second network node in the first direction, wherein the first direction is a first direction of a first reference SSB block in the first SSB block set, wherein the first reference SSB block in the first SSB block set is time division multiplexed with the uplink transmission, wherein the at least one processor is further configured to send an uplink transmission within a time period from the end of reception of the first reference SSB block, and wherein the first measurement information includes first measurement information corresponding to the first reference SSB block.

[0147] In a fourteenth aspect, either alone or in combination with one or more of the above aspects, the apparatus may be configured to transmit the uplink transmission in the first direction by applying a spatial filter corresponding to a transmit control information (TCI) state of the first reference SSB block to the uplink transmission.

[0148] In a fifteenth aspect, alone or in combination with one or more of the above aspects, the apparatus may be configured to receive information indicating the time period from the second network node.

[0149] In a sixteenth aspect, alone or in combination with one or more of the above aspects, the first bitmap and the second bitmap are cell-specific, group-specific or network node-specific.

[0150] In the seventeenth aspect, alone or in combination with one or more of the above aspects, the device may be configured to receive activation information from the second network node, wherein, in order to generate the first measurement information based on the bitmap information, the at least one processor is configured to generate the first measurement information based on the first bitmap based on the activation information.

[0151] In an eighteenth aspect, alone or in combination with one or more of the above aspects, the activation information includes system information, radio resource control information, medium access control element (MAC CE) information or downlink control information.

[0152] In a nineteenth aspect, alone or in combination with one or more of the above aspects, the first set of times is semi-static or non-periodic.

[0153] In a twentieth aspect, alone or in combination with one or more of the above aspects, the apparatus may be configured to send a request to the second network node to send the first SSB block set to the second network node.

[0154] In the twenty-first aspect, alone or in combination with one or more of the above aspects, the first SSB block in the first SSB block set includes a primary synchronization signal (PSS), a physical broadcast channel (PBCH) and a secondary synchronization signal (SSS), and wherein the first measurement information corresponds to the SSS.

[0155] In the twenty-second aspect, either alone or in combination with one or more of the above aspects, the apparatus may be configured to generate first measurement information based on the bitmap information by performing one or more measurements on the SSS and avoiding performing one or more measurements on the PSS or the PBCH.

[0156] In a twenty-third aspect, either alone or in combination with one or more of the above aspects, the first bitmap further indicates a third time set of SSB blocks in the first set of SSB blocks will not be sent by the second network node in the first direction of the first beam.

[0157] In a twenty-fourth aspect, either alone or in combination with one or more of the above aspects, the first bitmap further indicates that one or more times in the third set of times occur after a first time in the first set of times and before a second time in the first set of times.

[0158] In a twenty-fifth aspect, alone or in combination with one or more of the above aspects, the second bitmap further indicates a fourth set of times at which the SSB blocks in the second set of SSB blocks will not be transmitted by the second network node in the second direction of the second beam, the second bitmap further indicates that each time in the fourth set of times occurs before both a third time in the second set of times and a fourth time in the second set of times or after the third time in the second set of times and the fourth time in the second set of times, and the first bitmap and the second bitmap further indicate that the first time in the first set of times is the same time as the third time in the second set of times

[0159] In the twenty-sixth aspect, either alone or in combination with one or more of the above aspects, the first bitmap also indicates that each time in the third time set occurs before both the first time in the first time set and the second time in the first time set or after the first time in the first time set and the second time in the first time set.

[0160] In a twenty-seventh aspect, either alone or in combination with one or more of the above aspects, the first bitmap and the second bitmap indicate that the first time in the first set of times and the third time in the second set of times are the same time.

[0161] In a twenty-eighth aspect, alone or in combination with one or more of the above aspects, the apparatus may be configured to generate second measurement information based on a default configuration when no indication of the first number of beams or the bitmap information is received.

[0162] In one or more aspects, techniques for supporting pairing of synchronization signals for tracking and measurement may include additional aspects, such as any single aspect or any combination of aspects described below or in combination with one or more other processes or devices described elsewhere herein. In a twenty-ninth aspect, supporting pairing of synchronization signals for tracking and measurement may include an apparatus configured to: generate an indication of a first number of beams; generate bitmap information, wherein the bitmap information includes a first bitmap and a second bitmap, wherein the first bitmap corresponds to a first beam in the first number of beams and indicates a first time set of a first synchronization signal physical broadcast channel (SSB) block set is sent by the second network node in a first direction of the first beam, and wherein the second bitmap corresponds to a second beam in the first number of beams and indicates a second time set of a second SSB block set is sent by the second network node in a second direction of the second beam; send the indication of the first number of beams to the second network node; send the bitmap information to the second network node; send one or more SSB blocks in the first SSB block set in the first direction; and send one or more SSB blocks in the second SSB block set in the second direction. Additionally, the device may be performed or operated according to one or more aspects as described below. In some specific implementations, the device includes a wireless device, such as a base station. In some specific implementations, the device may include at least one processor, and a memory coupled to the processor. The processor may be configured to perform the operations described herein with respect to the device. In some other specific implementations, the device may include a non-transitory computer-readable medium having a program code recorded thereon, and the program code may be executable by a computer to cause the computer to perform the operations described herein with reference to the device. In some specific implementations, the device may include one or more components configured to perform the operations described herein. In some specific implementations, the method of wireless communication may include one or more operations described herein with reference to the device.

[0163] In a thirtieth aspect, either alone or in combination with one or more of the above aspects, the first set of SSB blocks and the second set of SSB blocks include cell definition SSB (CD-SSB) blocks.

[0164] In a thirty-first aspect, alone or in combination with one or more of the above aspects, the first set of SSB blocks and the second set of SSB blocks include non-cell definition SSB (NCD-SSB) blocks.

[0165] In aspect 32, either alone or in combination with one or more of the above aspects, the first direction of the first beam corresponds to a first transmit configuration indication (TCI) state of the first beam, and wherein the second direction of the second beam corresponds to a second TCI state of the second beam.

[0166] In an aspect thirty-third, either alone or in combination with one or more of the above aspects, the first direction of the first beam corresponds to a first quasi-co-sited (QCL) state of the first beam, and the second direction of the second beam corresponds to a second quasi-co-sited (QCL) state of the second beam.

[0167] In a thirty-fourth aspect, either alone or in combination with one or more of the above aspects, the bitmap information includes a first bitmap set indicating the time when the NCD-SSB block is sent and a second bitmap set indicating the time when the CD-SSB block is sent, and wherein the first set is different from the second set.

[0168] In a thirty-fifth aspect, either alone or in combination with one or more of the above aspects, the bitmap information further comprises a third bitmap, and wherein the third bitmap corresponds to the first beam and indicates a third time set at which a third set of SSB blocks is sent by the second network node in the first direction of the first beam.

[0169] In the thirty-sixth aspect, alone or in combination with one or more of the above aspects, the apparatus may be configured to send a downlink transmission to the second network node in the first direction within a time period starting from the end of transmission of the first reference SSB block, wherein the first direction is a first direction of a first reference SSB block in the first SSB block set, and wherein the first reference SSB block in the first SSB block set is time division multiplexed with the downlink transmission, and wherein the downlink transmission is received by the second network node within a time period starting from the end of reception of the first reference SSB block by the second network node.

[0170] In a thirty-seventh aspect, either alone or in combination with one or more of the above aspects, the apparatus may be configured to send an indication of the time period to the second network node.

[0171] In aspect thirty-eight, either alone or in combination with one or more of the above aspects, the apparatus may be configured to transmit the downlink transmission in the first direction by applying a spatial filter corresponding to a transmit control information (TCI) state of the first reference SSB block to the downlink transmission.

[0172] In the thirty-ninth aspect, alone or in combination with one or more of the above aspects, the apparatus may be configured to receive an uplink transmission sent in the first direction from the second network node, wherein the first direction is a first direction of a first reference SSB block in the first SSB block set, wherein the first reference SSB block in the first SSB block set is time division multiplexed with the uplink transmission, and wherein the uplink transmission is sent by the second network node within a time period starting from the end of reception of the first reference SSB block by the second network node.

[0173] In a fortieth aspect, alone or in combination with one or more of the above aspects, the apparatus is configured to send information indicating the time period to the second network node.

[0174] In a 41st aspect, alone or in combination with one or more of the above aspects, the first bitmap and the second bitmap are cell-specific, group-specific or network node-specific.

[0175] In a 42nd aspect, either alone or in combination with one or more of the above aspects, the apparatus is configured to send activation information to the second network node, wherein the activation information includes instructions for generating first measurement information based on the bitmap information.

[0176] In a forty-third aspect, either alone or in combination with one or more of the above aspects, the activation information comprises system information, radio resource control information, medium access control element (MAC CE) information or downlink control information.

[0177] In a forty-fourth aspect, either alone or in combination with one or more of the above aspects, the first time set is semi-static or non-periodic.

[0178] In a forty-fifth aspect, either alone or in combination with one or more of the above aspects, the apparatus may be configured to receive, from the second network node, a request to send the first set of SSB blocks to the first network node.

[0179] In a forty-sixth aspect, either alone or in combination with one or more of the above aspects, the first SSB block in the first SSB block set includes a primary synchronization signal (PSS), a physical broadcast channel (PBCH) and a secondary synchronization signal (SSS).

[0180] In a forty-seventh aspect, either alone or in combination with one or more of the above aspects, the first bitmap further indicates a third time set of SSB blocks in the first set of SSB blocks will not be sent by the second network node in the first direction of the first beam.

[0181] In a forty-eighth aspect, either alone or in combination with one or more of the above aspects, the first bitmap also indicates that one or more times in the third time set occur after a first time in the first time set and before a second time in the first time set.

[0182] In a forty-ninth aspect, alone or in combination with one or more of the above aspects, the second bitmap further indicates a fourth set of times at which SSB blocks in the second set of SSB blocks will not be sent by the second network node in the second direction of the second beam, wherein the second bitmap further indicates that each time in the fourth set of times occurs before both a third time in the second set of times and a fourth time in the second set of times or after the third time in the second set of times and the fourth time in the second set of times, and wherein the first bitmap and the second bitmap further indicate that the first time in the first set of times is the same time as the third time in the second set of times.

[0183] In the fiftieth aspect, either alone or in combination with one or more of the above aspects, the first bitmap also indicates that each time in the third time set occurs before both the first time in the first time set and the second time in the first time set or after the first time in the first time set and the second time in the first time set.

[0184] In the fifty-first aspect, alone or in combination with one or more of the above aspects, the first bitmap and the second bitmap indicate that the first time in the first time set and the third time in the second time set are the same time.

[0185] 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. For 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 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, device, equipment, computing system, etc. may include disclosure of UE, base station, device, equipment, computing system, etc. as network nodes. 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 broad example of a narrow example may be interpreted in the opposite manner, but in a broad, open 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 device, a first device, a first computing system, a first set 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 device, a second device, a second computing system, a second set of one or more components, a second processing entity, etc.

[0186] 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.

[0187] It should be understood by those skilled in the art that any of a variety of different technologies and techniques may be used to represent information and signals. 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 magnetic particles, light fields or optical particles, or any combination thereof.

[0188] In this article Figures 1 to 13 The components, functional blocks and modules described include processors, electronic devices, hardware devices, electronic components, logical circuits, memories, software codes, firmware codes, etc. or any combination thereof. Software should be broadly interpreted to mean instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, processes and / or functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language or other terms. In addition, the features discussed herein may be implemented via dedicated processor circuits, via executable instructions, or a combination thereof.

[0189] The technician will further understand that the various exemplary logic boxes, modules, circuits and algorithm steps described in conjunction with the disclosure of this article 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 functions in different ways for each specific application, but such specific implementation decisions should not be interpreted as causing departure from the scope of the present disclosure. The technician will also easily recognize that the order or combination of components, methods or interactions described herein are only examples, and the components, methods or interactions of various aspects of the present disclosure can be combined or performed in a manner other than the manner illustrated and described herein.

[0190] The various illustrative logical components, logic blocks, modules, circuits, and algorithmic processes described in conjunction with the specific implementations disclosed herein may be implemented as electronic hardware, computer software, or a combination of the two. The interchangeability of hardware and software has been generally described in terms of functionality and illustrated in the various illustrative components, blocks, modules, circuits, and processes described above. Whether such functionality is implemented in hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0191] The hardware and data processing apparatus for implementing the various illustrative logic pieces, logic blocks, modules and circuits described in conjunction with the various aspects disclosed herein may be implemented or executed using a general purpose single-chip or multi-chip processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, or any conventional processor, controller, microcontroller or state machine. In some specific implementations, a processor may be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in combination with a DSP core, or any other such configuration. In some specific implementations, specific processes and methods may be performed by circuits specific to a given function.

[0192] In one or more aspects, the functions described may be implemented in hardware, digital electronic circuitry, computer software, firmware (including the structures disclosed in this specification and their structural equivalents), or in any combination thereof. Specific implementations of the subject matter described in this specification may also be implemented as one or more computer programs, i.e., one or more modules of computer program instructions encoded on computer storage media for execution by data processing apparatus or for controlling the operation of data processing apparatus.

[0193] If implemented in software, the function may be stored as one or more instructions or codes on a computer-readable medium or sent via a computer-readable medium. The process of the method or algorithm disclosed herein may be implemented in a processor executable software module that may reside on a computer-readable medium. Computer-readable media include both computer storage media and communication media, which include any media that may be implemented to transfer a computer program from one place to another. The storage medium may be any available medium that a computer can access. As an example and not limitation, such computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), CD-ROM or other optical disk storage devices, magnetic disk storage devices or other magnetic storage devices, or any other medium that can be used to store the required program code in the form of an instruction or data structure and can be accessed by a computer. In addition, any connection may be appropriately referred to as a computer-readable medium. Disks and optical disks as used herein include compact disks (CDs), laser disks, optical disks, digital versatile disks (DVDs), floppy disks, and blue-ray disks, wherein disks typically reproduce data magnetically, and optical disks reproduce data optically with lasers. The above combination should also be included in the scope of computer-readable media. Additionally, the operations of a method or algorithm may reside as one or any combination or set of codes and instructions on a machine-readable medium and a computer-readable medium, which may be incorporated into a computer program product.

[0194] Various modifications to the specific implementations described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to some other specific implementations without departing from the spirit or scope of the disclosure. Therefore, the claims are not intended to be limited to the specific implementations shown herein, but are to be consistent with the broadest scope consistent with the disclosure, the principles and novel features disclosed herein.

[0195] Additionally, one of ordinary skill in the art will readily appreciate that the terms "upper" and "lower" are sometimes used for ease of describing the drawings and indicate relative positions corresponding to the orientation of the drawings on a correctly oriented page and may not reflect the correct orientation of any device as implemented.

[0196] Certain features described in this specification in the context of separate implementations may also be implemented in combination in a single implementation. Conversely, various features described in the context of a single implementation may also be implemented in multiple implementations, either individually or in any suitable subcombination. Furthermore, while features may be described above as functioning in certain combinations and even initially claimed as such, one or more features from a claimed combination may in some cases be removed from the combination, and a claimed combination may involve subcombinations or variations of subcombinations.

[0197] Similarly, although the operations are depicted in a specific order in the figure, this should not be understood as requiring such operations to be performed in the specific order shown or in a sequential order, or to perform all the illustrated operations to achieve the desired result. Further, the accompanying drawings can schematically depict one or more example processes in the form of a flow chart. However, other operations not depicted can be combined in the schematically illustrated example process. For example, one or more additional operations can be performed before, after, at the same time or between any illustrated operations. In some cases, multitasking and parallel processing can be advantageous. In addition, the separation of various system components in the specific implementation described above should not be understood as requiring such separation in all specific implementations, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products. Additionally, some other specific implementations also fall within the scope of the appended claims. In some cases, the actions narrated in the claims can be performed in different orders and still achieve the desired result.

[0198] As used herein, the term "or" is an inclusive "or" unless restrictive language is used with respect to the listed alternatives. For example, references to "X is based on A or B" should be interpreted as including within its scope X based on A, X based on B, and X based on A and B. In this regard, references to "X is based on A or B" refer to "at least one of A or B" or "one or more of A or B" because "or" is inclusive. Similarly, references to "X is based on A, B, or C" should be interpreted as including within its scope X based on A, X based on B, X based on C, X based on A and B, X based on A and C, X based on B and C, and X based on A, B, and C. In this regard, references to "X is based on A, B, or C" refer to "at least one of A, B, or C" or "one or more of A, B, or C" because "or" is inclusive. As an example of restrictive language, a reference to "X is based on only one of A or B" should be interpreted as including within its scope that X is based on A and X is based on B, but not including X being based on A and B. The term "substantially" is defined as being largely, but not necessarily completely, the specified content (and including the specified content; for example, substantially 90 degrees includes 90 degrees, and substantially parallel includes parallel), as understood by one of ordinary skill in the art. In any disclosed specific implementation, the term "substantially" can be replaced with "within [percentage]" of the specified content, where the percentage includes 0.1%, 1%, 5% or 10%. 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, conditions, factors, etc.) should be interpreted as "based at least on A", unless specifically indicated in a different manner. Similarly, as used herein, the phrase "set" should be understood to include the possibility of a set having one member. That is, the phrase "set" should be understood in the same manner as "one or more" or "at least one".

[0199] The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Therefore, the disclosure is not intended to be limited to the examples and designs described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A first network node, the first network node comprising: Memory; and at least one processor coupled to the memory, wherein the at least one processor is configured to: receiving an indication of a first number of beams from a second network node; receiving bitmap information from the second network node, wherein the bitmap information comprises a first bitmap and a second bitmap, wherein the first bitmap corresponds to a first beam of the first number of beams and indicates a first set of times for sending a first synchronization signal physical broadcast channel (SSB) block set in a first direction of the first beam by the second network node, and wherein the second bitmap corresponds to a second beam of the first number of beams and indicates a second set of times for sending a second set of SSB blocks in a second direction of the second beam by the second network node; as well as First measurement information is generated based on the bitmap information.

2. The first network node according to claim 1, wherein the at least one processor is further configured to: The first network node is synchronized with the second network node based on the first measurement information by determining a center frequency of a physical broadcast channel (PBCH).

3. A first network node according to claim 1, wherein the first direction of the first beam corresponds to a first transmit configuration indication (TCI) state of the first beam or a first quasi-co-location (QCL) state of the first beam, and wherein the second direction of the second beam corresponds to a second TCI state of the second beam or a second QCL state of the second beam.

4. The first network node according to claim 1, wherein the bitmap information includes a first bitmap set indicating a time to send an NCD-SSB block and a second bitmap set indicating a time to send a CD-SSB block, and wherein the first set is different from the second set.

5. The first network node according to claim 1, wherein the bitmap information further includes a third bitmap, and wherein the third bitmap corresponds to the first beam and indicates a third time set at which a third SSB block set is sent by the second network node in the first direction of the first beam.

6. The first network node of claim 1 , wherein the at least one processor is further configured to: receiving, from the second network node, a downlink transmission sent in the first direction, wherein the first direction is a first direction of a first reference SSB block in the first set of SSB blocks, and wherein the first reference SSB block is time division multiplexed with the downlink transmission, wherein the at least one processor is configured to receive the downlink transmission from the second network node within a time period from the end of reception of the first reference SSB block, and The first measurement information includes first measurement information corresponding to the first reference SSB block.

7. The first network node of claim 1 , wherein the at least one processor is further configured to: sending an uplink transmission to the second network node in the first direction, wherein the first direction is a first direction of a first reference SSB block in the first set of SSB blocks, wherein the first reference SSB block is time-division multiplexed with the uplink transmission, wherein the at least one processor is further configured to transmit the uplink transmission within a time period from the end of reception of the first reference SSB block, and The first measurement information includes first measurement information corresponding to the first reference SSB block.

8. The first network node of claim 1 , wherein the at least one processor is further configured to: receiving activation information from the second network node, wherein: To generate the first measurement information based on the bitmap information, the at least one processor is configured to generate the first measurement information based on the first bitmap based on the activation information, The activation information includes system information, radio resource control information, medium access control element (MACCE) information or downlink control information.

9. The first network node of claim 1 , wherein the at least one processor is further configured to: sending, to the second network node, a request for the second network node to send the first set of SSB blocks, The first time set is semi-static or non-periodic.

10. The first network node according to claim 1, wherein the first SSB block in the first SSB block set includes a primary synchronization signal (PSS), a physical broadcast channel (PBCH), and a secondary synchronization signal (SSS), wherein the first measurement information corresponds to the SSS, and wherein in order to generate the first measurement information based on the bitmap information, the at least one processor is configured to perform one or more measurements on the SSS and avoid performing one or more measurements on the PSS or the PBCH.

11. A method comprising: receiving, by the first network node from the second network node, an indication of a first number of beams; receiving, by the first network node, bitmap information from the second network node, wherein the bitmap information comprises a first bitmap and a second bitmap, wherein the first bitmap corresponds to a first beam of the first number of beams and indicates a first set of times for sending a first synchronization signal physical broadcast channel (SSB) block set in a first direction of the first beam by the second network node, and wherein the second bitmap corresponds to a second beam of the first number of beams and indicates a second set of times for sending a second set of SSB blocks in a second direction of the second beam by the second network node; as well as The first network node generates first measurement information based on the bitmap information.

12. The method according to claim 11, further comprising: The first network node is synchronized with the second network node based on the first measurement information by the first network node determining a center frequency of a physical broadcast channel (PBCH).

13. A method according to claim 11, wherein the first direction of the first beam corresponds to a first transmit configuration indication (TCI) state of the first beam or a first quasi-co-location (QCL) state of the first beam, and wherein the second direction of the second beam corresponds to a second TCI state of the second beam or a second QCL state of the second beam.

14. The method of claim 11, wherein the bitmap information comprises a first bitmap set indicating a time when an NCD-SSB block is sent and a second bitmap set indicating a time when a CD-SSB block is sent, and wherein the first set is different from the second set.

15. The method of claim 11, wherein the bitmap information further comprises a third bitmap, and wherein the third bitmap corresponds to the first beam and indicates a third time set at which a third set of SSB blocks is sent by the second network node in the first direction of the first beam.

16. The method according to claim 11, further comprising: receiving, by the first network node from the second network node, a downlink transmission sent in the first direction, wherein the first direction is a first direction of a first reference SSB block in the first set of SSB blocks, wherein the first reference SSB block is time-division multiplexed with the downlink transmission, wherein the downlink transmission is received by the first network node from the second network node within a time period starting from the end of reception of the first reference SSB block, and The first measurement information includes first measurement information corresponding to the first reference SSB block.

17. The method according to claim 11, further comprising: sending, by the first network node, an uplink transmission in the first direction to the second network node, wherein the first direction is a first direction of a first reference SSB block in the first set of SSB blocks, wherein the first reference SSB block is time-division multiplexed with the uplink transmission, wherein the uplink transmission is sent by the first network node to the second network node within a time period starting from the end of reception of the first reference SSB block, and The first measurement information includes first measurement information corresponding to the first reference SSB block.

18. The method according to claim 11, further comprising: receiving, by the first network node, activation information from the second network node, wherein generating the first measurement information based on the bitmap information comprises generating the first measurement information based on the first bitmap based on the activation information, The activation information includes system information, radio resource control information, medium access control element (MACCE) information or downlink control information.

19. The method according to claim 11, further comprising: The first network node sends a request to the second network node for the second network node to send the first SSB block set, The first time set is semi-static or non-periodic.

20. The method of claim 11, wherein the first SSB block in the first SSB block set comprises a primary synchronization signal (PSS), a physical broadcast channel (PBCH), and a secondary synchronization signal (SSS), wherein the first measurement information corresponds to the SSS, and wherein generating the first measurement information based on the bitmap information comprises performing one or more measurements on the SSS and avoiding performing one or more measurements on the PSS or the PBCH.

21. A first network node, the first network node comprising: Memory; and at least one processor coupled to the memory, wherein the at least one processor is configured to: generating an indication of a first number of beams; generating bitmap information, wherein the bitmap information comprises a first bitmap and a second bitmap, wherein the first bitmap corresponds to a first beam of the first number of beams and indicates a first set of times for sending a first synchronization signal physical broadcast channel (SSB) block set in a first direction of the first beam by a second network node, and wherein the second bitmap corresponds to a second beam of the first number of beams and indicates a second set of times for sending a second SSB block set in a second direction of the second beam by the second network node; sending the indication of the first number of beams to the second network node; sending the bitmap information to the second network node; sending one or more SSB blocks in the first set of SSB blocks in the first direction; as well as One or more SSB blocks in the second set of SSB blocks are sent in the second direction.

22. A first network node according to claim 21, wherein the first direction of the first beam corresponds to a first transmit configuration indication (TCI) state of the first beam or a first quasi-co-location (QCL) state of the first beam, and wherein the second direction of the second beam corresponds to a second TCI state of the second beam or a second QLC state of the second beam.

23. The first network node of claim 21, wherein the bitmap information comprises a first bitmap set indicating a time to send an NCD-SSB block and a second bitmap set indicating a time to send a CD-SSB block, and wherein the first set is different from the second set.

24. The first network node of claim 21, wherein the at least one processor is further configured to: sending a downlink transmission to the second network node in the first direction within a time period starting from the end of transmission of a first reference SSB block in the first set of SSB blocks, wherein the first direction is a first direction of the first reference SSB block, and wherein the first reference SSB block is time division multiplexed with the downlink transmission, and The downlink transmission is received by the second network node within a time period starting from the end of reception of the first reference SSB block by the second network node.

25. The first network node of claim 21, wherein the at least one processor is further configured to: receiving, from the second network node, an uplink transmission sent in the first direction, wherein the first direction is a first direction of a first reference SSB block in the first set of SSB blocks, wherein the first reference SSB block is time-division multiplexed with the uplink transmission, and The uplink transmission is sent by the second network node within a time period starting from the end of reception of the first reference SSB block by the second network node.

26. A method comprising: generating, by the first network node, an indication of a first number of beams; generating, by a first network node, bitmap information, wherein the bitmap information comprises a first bitmap and a second bitmap, wherein the first bitmap corresponds to a first beam of the first number of beams and indicates a first set of times at which a first synchronization signal physical broadcast channel (SSB) block set is transmitted by a second network node in a first direction of the first beam, and wherein the second bitmap corresponds to a second beam of the first number of beams and indicates a second set of times at which a second SSB block set is transmitted by the second network node in a second direction of the second beam; sending, by the first network node to the second network node, the indication of the first number of beams; The first network node sends the bitmap information to the second network node; sending, by the first network node, one or more SSB blocks in the first set of SSB blocks in the first direction; as well as One or more SSB blocks in the second set of SSB blocks are sent by the first network node in the second direction.

27. A method according to claim 26, wherein the first direction of the first beam corresponds to a first transmit configuration indication (TCI) state of the first beam or a first quasi-co-location (QCL) state of the first beam, and wherein the second direction of the second beam corresponds to a second TCI state of the second beam or a second QLC state of the second beam.

28. The method of claim 26, wherein the bitmap information comprises a first bitmap set indicating a time when an NCD-SSB block is sent and a second bitmap set indicating a time when a CD-SSB block is sent, and wherein the first set is different from the second set.

29. The method according to claim 26, further comprising: sending, by the first network node, a downlink transmission in the first direction to the second network node within a time period starting from the end of the transmission of a first reference SSB block in the first set of SSB blocks, wherein the first direction is a first direction of the first reference SSB block, wherein the first reference SSB block is time-division multiplexed with the downlink transmission, and The downlink transmission is received by the second network node within a time period starting from the end of reception of the first reference SSB block by the second network node.

30. The method of claim 26, further comprising: receiving, by the first network node from the second network node, an uplink transmission sent in the first direction, wherein the first direction is a first direction of a first reference SSB block in the first set of SSB blocks, wherein the first reference SSB block is time-division multiplexed with the uplink transmission, and The uplink transmission is sent by the second network node within a time period starting from the end of reception of the first reference SSB block by the second network node.

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