Uplink resource mapping for simplified synchronization signal block cells

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, an apparatus may receive a simplified synchronization signal block (SSB). The apparatus may transmit an uplink communication using an uplink resource associated with the identifier indicated by the simplified SSB. Numerous other aspects are described.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. non-provisional patent application No. 18 / 153,987, filed on January 12, 2023, entitled “UPLINK RESOURCE MAPPING FOR SIMPLIFIED SYNCHRONIZATION SIGNAL BLOCK CELLS,” which is hereby expressly incorporated herein by reference. Background Art

[0003] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for uplink resource mapping.

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0005] A wireless network may include one or more network nodes that support communication for wireless communication devices, such as user equipment (UE) or multiple UEs. The UE may communicate with the network node via downlink and uplink communications. A "downlink" (or "DL") refers to the communication link from the network node to the UE, and an "uplink" (or "UL") refers to the communication link from the UE to the network node. Some wireless networks may support device-to-device communication, such as via a local link (e.g., a sidelink (SL), a wireless local area network (WLAN) link, and / or a wireless personal area network (WPAN) link, etc.).

[0006] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region, and / or global level. New Radio (NR) (which may be referred to as 5G) is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by: improving spectrum efficiency; reducing costs; improving services; utilizing new spectrum; and using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink and CP-OFDM and / or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink to better integrate with other open standards; as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR, and other radio access technologies remain useful. Summary of the Invention

[0007] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive a simplified synchronization signal block (SSB). The one or more processors may be configured to send an uplink communication using uplink resources associated with an identifier indicated by the simplified SSB.

[0008] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to transmit a simplified SSB. The one or more processors may be configured to receive an uplink communication on an uplink resource associated with an identifier indicated by the simplified SSB.

[0009] Some aspects described herein relate to a first apparatus for wireless communication. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to configure a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with a second apparatus. The one or more processors may be configured to transmit the downlink transmission in a cell of the first apparatus.

[0010] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by an apparatus. The instruction set may include one or more instructions that, when executed by one or more processors of the apparatus, cause the apparatus to receive a simplified SSB. The instruction set may include one or more instructions that, when executed by one or more processors of the apparatus, cause the apparatus to transmit an uplink communication using uplink resources associated with an identifier indicated by the simplified SSB.

[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a device. The instruction set may include one or more instructions that, when executed by one or more processors of the device, cause the device to transmit a simplified SSB. The instruction set, when executed by one or more processors of the device, causes the device to receive uplink communications on uplink resources associated with an identifier indicated by the simplified SSB.

[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a first device. The set of instructions, when executed by one or more processors of the first device, causes the first device to configure a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with a second device. The set of instructions, when executed by the one or more processors of the first device, causes the first device to transmit the downlink transmission in a cell of the first device.

[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a simplified SSB. The apparatus may include means for transmitting an uplink communication using uplink resources associated with an identifier indicated by the simplified SSB.

[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting a simplified SSB. The apparatus may include means for receiving uplink communications on uplink resources associated with an identifier indicated by the simplified SSB.

[0015] Some aspects described herein relate to a first apparatus for wireless communication. The first apparatus may include means for configuring a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with a second apparatus. The first apparatus may include means for transmitting the downlink transmission in a cell of the first apparatus.

[0016] Some aspects described herein relate to a method of wireless communication performed by an apparatus. The method may include receiving a simplified SSB. The method may include sending an uplink communication using uplink resources associated with an identifier indicated by the simplified SSB.

[0017] Some aspects described herein relate to a method of wireless communication performed by an apparatus. The method may include transmitting a simplified SSB. The method may include receiving uplink communication on uplink resources associated with an identifier indicated by the simplified SSB.

[0018] Some aspects described herein relate to a method of wireless communication performed by a first device. The method may include configuring a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with a second device. The method may include transmitting the downlink transmission in a cell of the first device.

[0019] The various aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network entities, network nodes, wireless communication devices and / or processing systems as fully described with reference to and as illustrated in the drawings and description.

[0020] The features and technical advantages of the examples according to the present disclosure have been outlined quite broadly above so that the detailed description below may be better understood. Additional features and advantages will be described below. The concepts and specific examples disclosed may be readily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein (both their organization and method of operation) and the associated advantages will be better understood from the following description when considered in conjunction with the accompanying drawings. Each of the figures in these drawings is provided for illustration and description purposes and not as a definition of limitations of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order that the above-mentioned features of the present disclosure may be fully understood, a more particular description of the invention briefly summarized above may be obtained by reference to various aspects (some of which are illustrated in the accompanying drawings). It should be noted, however, that the drawings illustrate only certain typical aspects of the present disclosure and are not therefore to be considered limiting of its scope, as the description may admit to other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0022] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0023] Figure 2is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network according to the present disclosure.

[0024] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.

[0025] Figure 4 is a diagram illustrating an example of a synchronization signal hierarchical structure according to the present disclosure.

[0026] Figure 5 is a diagram illustrating an example of a synchronization signal hierarchical structure according to the present disclosure.

[0027] Figure 6 is a diagram illustrating an example of identifying uplink resources based at least in part on an uplink map according to the present disclosure.

[0028] Figure 7A and Figure 7B is a diagram illustrating an example of identifying uplink resources based at least in part on an uplink map according to the present disclosure.

[0029] Figure 8A and Figure 8B is a diagram illustrating an example of identifying uplink resources based at least in part on an uplink map according to the present disclosure.

[0030] Figure 9 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.

[0031] Figure 10 is a diagram illustrating an example process, for example, performed by a network node, according to the present disclosure.

[0032] Figure 11 is a diagram illustrating an example process performed, for example, by a first network node according to the present disclosure.

[0033] Figure 12 is a diagram of an example apparatus for wireless communications according to the present disclosure.

[0034] Figure 13 is a diagram illustrating an example of a hardware implementation for an apparatus employing a processing system according to the present disclosure.

[0035] Figure 14 is a diagram illustrating an example of a specific implementation of code and circuits for an apparatus according to the present disclosure.

[0036] Figure 15 is a diagram of an example apparatus for wireless communications according to the present disclosure.

[0037] Figure 16is a diagram illustrating an example of a hardware implementation for an apparatus employing a processing system according to the present disclosure.

[0038] Figure 17 is a diagram illustrating an example of a specific implementation of code and circuits for an apparatus according to the present disclosure.

[0039] Figure 18 is a diagram of an example apparatus for wireless communications according to the present disclosure.

[0040] Figure 19 is a diagram illustrating an example of a hardware implementation for an apparatus employing a processing system according to the present disclosure.

[0041] Figure 20 is a diagram illustrating an example of a specific implementation of code and circuits for an apparatus according to the present disclosure. DETAILED DESCRIPTION

[0042] A network node may transmit one or more synchronization signals in a cell (e.g., a coverage area provided by the network node). One or more types of synchronization signals may be transmitted in blocks called synchronization signal blocks (SSBs). In some cases, different types of SSBs may be transmitted in adjacent cells. For example, a full SSB may be transmitted in a first cell, while a reduced SSB (or lightweight SSB) may be transmitted in a second cell adjacent to the first cell.

[0043] A full SSB includes resources (e.g., time domain resources, frequency domain resources) that carry a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH). In contrast, a simplified SSB includes only the PSS, only the PSS and SSS (e.g., without the PBCH), or the PSS and SSS with a partial PBCH. Therefore, a simplified SSB is a simplified version of a full SSB. According to one or more examples, a simplified SSB can reduce radio resource usage and / or energy usage in a cell by up to, for example, 20% or more, because the simplified SSB can be sent on fewer orthogonal frequency division multiplexing (OFDM) symbols (e.g., as few as 2 OFDM symbols or less) relative to a full SSB. In one or more aspects, a user equipment (UE) may send an uplink cell wake-up signal (WUS) to obtain a full SSB in the cell in which the simplified SSB is broadcast. The uplink cell WUS is a specific type of WUS that the UE sends to a network node on the uplink to trigger on-demand full SSB transmission from the network node to the UE on the downlink. The combination of simplified SSB and uplink cell WUS enables reducing radio resource usage and / or energy usage when broadcasting SSB, while still enabling UEs to obtain full SSB on demand.

[0044] The PBCH portion of the full SSB provides the UE with an indication of the resources on which system information (e.g., Master Information Block (MIB), System Information Block 1 (SIB1)) is transmitted in the cell. The UE can use the system information to obtain the location of uplink resources used for initial access (e.g., random access channel (RACH) transmission) and / or uplink WUS transmission in the cell. However, with the reduction (or elimination) of the PBCH in the simplified SSB, a UE entering a cell in which the simplified SSB is transmitted, a UE camping on the cell, or a UE connected to the cell may not be able to identify the location of the resources on which system information is transmitted in the cell. Therefore, if the UE wants to communicate with the network node providing the cell, the UE may not be able to identify the uplink resources that can be used in the cell for initial access and / or uplink cell WUS transmission. The UE may instead send an uplink transmission (e.g., RACH transmission, uplink cell WUS transmission) in an uplink resource that is not monitored by the network node and / or in which another UE sends an uplink transmission, which may cause a conflict and / or may cause the uplink transmission by the UE to not be received by the network node.

[0045] As described herein, according to one or more aspects, a UE may be provided / configured with an uplink resource mapping that enables the UE to identify uplink resources for initial access and / or uplink cell WUS transmission in a cell in which a simplified SSB is transmitted, the cell being provided by a network node. In one example, the uplink resource mapping may be a mapping between uplink resources and an identifier of a network node providing the cell. The UE may obtain or determine an identifier based on a simplified SSB transmitted by the network node in the cell, and may identify the uplink resource based on the identifier and the uplink resource mapping.

[0046] The uplink resource mapping described herein can reduce the possibility of transmit / receive conflicts in cells in which simplified SSBs are transmitted. In the absence of uplink resource mapping, the UE may select uplink resources that conflict with other transmissions in the cell, which may result in an increase in discarded communications in lightweight SSB cells. According to some aspects, the uplink resource mapping described herein enables the UE to identify uplink resources allocated for uplink cell WUS and / or RACH transmissions. In this way, because the occurrence of retransmissions due to conflicts is reduced, the possibility of conflicts in the cell and / or the consumption of network resources are reduced.

[0047] According to one or more aspects, the uplink resource mapping described herein can increase the likelihood of uplink reception (e.g., RACH transmissions, uplink cell WUS) at a network node that transmits a simplified SSB in a cell. In one example, in the absence of uplink resource mapping, a UE may select uplink resources that the network node does not monitor for uplink transmissions, which may result in uplink transmissions by the UE not being received at the network node. The uplink resource mapping described herein enables the UE to identify uplink resources that the network node monitors for uplink cell WUS and / or RACH transmissions, which increases the likelihood that uplink transmissions by the UE will be successfully received by the network node. This reduces the consumption of network resources in the cell because retransmissions due to unreceived uplink transmissions are reduced.

[0048] Thus, the uplink resource mapping described herein may facilitate the use of simplified SSB broadcasting in a cell. Thus, the uplink resource mapping described herein enables the radio resource savings and / or energy savings described above provided by the use of simplified SSB broadcasting in a cell.

[0049] Various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided so that the present disclosure will be thorough and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. It will be appreciated by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods implemented using other structures, functions, or structures and functions in addition to or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the present claims.

[0050] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively, "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0051] Although various aspects may be described herein using terminology generally associated with 5G or New Radio (NR) radio access technology (RAT), various aspects of the present disclosure may be applicable to other RATs, such as 3G RAT, 4G RAT, and / or post-5G (e.g., 6G) RATs.

[0052] Figure 1 1 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., Long Term Evolution (LTE)) network, etc. The wireless network 100 may include one or more network nodes 110 (shown as network node 110a, network node 110b, network node 110c, and network node 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. The network node 110 is a network node that communicates with the UE 120. As shown in the figure, the network node 110 may include one or more network nodes. For example, the network node 110 may be a converged network node, meaning that the converged network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). As another example, the network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station), meaning that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed between two or more nodes (such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).

[0053] In some examples, network node 110 is or includes a network node (such as an RU) that communicates with UE 120 via a radio access link. In some examples, network node 110 is or includes a network node (such as a DU) that communicates with other network nodes 110 via a fronthaul link or a midhaul link. In some examples, network node 110 is or includes a network node (such as a CU) that communicates with other network nodes 110 via a midhaul link or communicates with a core network via a backhaul link. In some examples, network node 110 (such as a converged network node 110 or a decomposed network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. Network node 110 may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmit receive point (TRP), a DU, an RU, a CU, a mobility element of a network, a core network node, a network element, network equipment, a RAN node, or a combination thereof. In some examples, network nodes 110 may be interconnected to each other or to one or more other network nodes 110 in wireless network 100 using any suitable transport network via various types of fronthaul interfaces, midhaul interfaces, and / or backhaul interfaces, such as direct physical connections, air interfaces, or virtual networks.

[0054] In some examples, network node 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" may refer to the coverage area of a network node 110 and / or a network node subsystem serving that coverage area, depending on the context in which the term is used. A wireless network may include one or more types of cells 102. Network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UEs 120 with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs 120 associated with the femto cell (e.g., UEs 120 in a closed subscriber group (CSG)). A network node 110 for a macro cell may be referred to as a macro network node. The network node 110 for a pico cell may be referred to as a pico network node. The network node 110 for a femto cell may be referred to as a femto network node or a home network node. Figure 1In the example shown, network node 110a may be a macro network node for macro cell 102a, network node 110b may be a pico network node for pico cell 102b, and network node 110c may be a femto network node for femto cell 102c. A network node may support one or more (e.g., three) cells. In some examples, the cells may not necessarily be stationary, and the geographic area of the cells may move depending on the location of a mobile network node 110 (e.g., a mobile network node).

[0055] In some aspects, the term "base station" or "network node" may refer to a converged base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, a "base station" or "network node" may refer to a CU, a DU, a RU, a near real-time (near-RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" may refer to a device configured to perform one or more functions, such as those described herein in conjunction with network node 110. In some aspects, the term "base station" or "network node" may refer to multiple devices configured to perform one or more functions. For example, in some distributed systems, each of a number of different devices (which may be located in the same geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to repeatedly perform at least a portion of the function, and the term "base station" or "network node" may refer to any one or more of these different devices. In some aspects, the term "base station" or "network node" may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one of the base station functions but not another base station function. In this way, a single device may include more than one base station.

[0056] The wireless network 100 may include one or more relay stations. A relay station is a network node that can receive transmissions of data from an upstream node (e.g., a network node 110 or a UE 120) and transmit transmissions of data to a downstream node (e.g., a UE 120 or a network node 110). A relay station may be a UE 120 that can relay transmissions for other UEs 120. Figure 1 In the example shown in , a network node 110 d (e.g., a relay network node) may communicate with a network node 110 a (e.g., a macro network node) and a UE 120 d to facilitate communications between the network node 110 a and the UE 120 d. A network node 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, etc.

[0057] The wireless network 100 may be a heterogeneous network that includes different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, etc. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro network node may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico network node, a femto network node, and a relay network node may have a lower transmit power level (e.g., 0.1 watt to 2 watts).

[0058] The network controller 130 may be coupled to or in communication with a set of network nodes 110 and may provide coordination and control for the network nodes 110. The network controller 130 may communicate with the network nodes 110 via a backhaul communication link or a midhaul communication link. The network nodes 110 may also communicate directly with each other or indirectly via a wireless backhaul communication link or a wired backhaul communication link. In some aspects, the network controller 130 may be or may include a CU or a core network device.

[0059] UEs 120 may be dispersed throughout wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, an access terminal, a terminal, a mobile station, and / or a subscriber unit. UE 120 may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, a UE function of a network node, and / or any other suitable device configured to communicate via a wireless or wired medium.

[0060] Some UEs 120 may be considered machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags that can communicate with a network node, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered customer premises equipment. The UE 120 may be included within a housing that houses components of the UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, the processor component (e.g., one or more processors) and the memory component (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0061] Generally speaking, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. A RAT may be referred to as a radio technology, air interface, etc. A frequency may be referred to as a carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0062] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly using one or more sidelink channels (e.g., without using network node 110 as an intermediary to communicate with each other). For example, UE 120 can communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UE 120 can perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network node 110.

[0063] The electromagnetic spectrum is typically subdivided by frequency / wavelength into various categories, bands, channels, etc. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). It should be understood that although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the “sub-6 GHz” band in various documents and articles. A similar naming issue sometimes occurs with respect to FR2, which is often (interchangeably) referred to as the “millimeter wave” band in documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0064] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating band for these mid-band frequencies as frequency range designation FR3 (7.125 GHz–24.25 GHz). The frequency bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, thus effectively extending the features of FR1 and / or FR2 to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operation to more than 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6 GHz–71 GHz), FR4 (52.6 GHz–114.25 GHz), and FR5 (114.25 GHz–300 GHz). Each of these higher frequency bands falls within the EHF band.

[0065] With the above examples in mind, unless otherwise specifically stated, it should be understood that if the term "sub-6 GHz" or the like is used herein, the term may broadly refer to frequencies that may be lower than 6 GHz, may be within FR1, or may include mid-band frequencies. Additionally, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, the term may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a, FR4-1, and / or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0066] like Figure 1As further shown, different types of SSBs may be transmitted in two or more cells 102. In some aspects, different types of SSBs may be transmitted in adjacent cells 102. As an example, network node 110c may transmit (e.g., broadcast, multicast) a full SSB 132 in cell 102c, while network node 110b may transmit (e.g., broadcast, multicast) a simplified SSB 134 in cell 102c. Utilizing simplified SSB 134 in cell 102 of wireless network 100 enables reduced radio resource usage and / or energy consumption in cell 102.

[0067] In some aspects, UE 120 may include a communications manager 140. As described in greater detail elsewhere herein, communications manager 140 may receive a simplified SSB 134 and may send uplink communications using uplink resources associated with an identifier indicated by simplified SSB 134. The identifier may be associated with a network node 110 that sent the simplified SSB 134 and / or may be associated with one or more aspects of the simplified SSB 134. Additionally or alternatively, communications manager 140 may perform one or more other operations described herein.

[0068] In some aspects, a network node 110 (e.g., configured to transmit a full SSB 132) may include a communications manager 150. As described in greater detail elsewhere herein, the communications manager 150 may configure a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with another network node 110, and may transmit the downlink transmission in a cell 102 of the network node 110. Additionally or alternatively, the communications manager 150 may perform one or more other operations described herein.

[0069] In some aspects, the network node 110 (e.g., configured to transmit the simplified SSB 134) may include a communication manager 160. As described in greater detail elsewhere herein, the communication manager 160 may transmit the simplified SSB 134 and may receive uplink communications on uplink resources associated with an identifier indicated by the simplified SSB 134. Additionally or alternatively, the communication manager 160 may perform one or more other operations described herein.

[0070] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.

[0071] Figure 22 is a diagram illustrating example 200 of a network node 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The network node 110 may be equipped with a set of antennas 234a through 234t, such as T antennas (T ≥ 1). The UE 120 may be equipped with a set of antennas 252a through 252r, such as R antennas (R ≥ 1). The network node 110 of example 200 includes one or more radio frequency components, such as antennas 234 and a modem 232. In some examples, the network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include radio frequency components, such as one or more CUs or one or more DUs, that facilitate direct communication with the UE 120.

[0072] At network node 110, transmit processor 220 may receive data intended for UE 120 (or a group of UEs 120) from data source 212. Transmit processor 220 may select one or more modulation and coding schemes (MCS) for UE 120 based at least in part on one or more channel quality indicators (CQIs) received from UE 120. Network node 110 may process (e.g., encode and modulate) the data for UE 120 based at least in part on the MCS selected for UE 120 and may provide data symbols for UE 120. Transmit processor 220 may process system information (e.g., for semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling) and provide overhead symbols and control symbols. Transmit processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input, multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on data symbols, control symbols, overhead symbols, and / or reference symbols, as applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems) (illustrated as modems 232a through 232t). For example, each output symbol stream may be provided to a modulator component (illustrated as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may also process (e.g., convert to analog, amplify, filter, and / or frequency upconvert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a through 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas) (illustrated as antennas 234a through 234t).

[0073] At the UE 120, a set of antennas 252 (shown as antennas 252a through 252r) may receive downlink signals from the network node 110 and / or other network nodes 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a through 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain input samples. Each modem 254 may use the demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols, if applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to a data sink 260, and may provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine, among other things, a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter. In some examples, one or more components of the UE 120 may be included in a housing 284.

[0074] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network node 110 via the communication unit 294.

[0075] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included within one or more antenna panels, one or more antenna groups, one or more groups of antenna elements, and / or one or more antenna arrays, etc. An antenna panel, antenna group, group of antenna elements, and / or antenna array may include one or more antenna elements (within a single housing or multiple housings), a group of coplanar antenna elements, a group of non-coplanar antenna elements, and / or be coupled to one or more transmit and / or receive components (such as, Figure 2 One or more antenna elements of one or more components in.

[0076] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI) from the controller / processor 280. The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, if applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the network node 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform aspects of any of the methods described herein.

[0077] At network node 110, uplink signals from UE 120 and / or other UEs may be received by antenna 234, processed by modem 232 (e.g., a demodulator component (shown as DEMOD) of modem 232), detected by MIMO detector 236 (if applicable), and further processed by receive processor 238 to obtain decoded data and control information transmitted by UE 120. Receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to a controller / processor 240. Network node 110 may include a communication unit 244 and may communicate with network controller 130 via communication unit 244. Network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communications. In some examples, modem 232 of network node 110 may include a modulator and a demodulator. In some examples, network node 110 includes a transceiver. The transceiver may include any combination of an antenna 234, a modem 232, a MIMO detector 236, a receive processor 238, a transmit processor 220, and / or a TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein.

[0078] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other component in the may perform one or more techniques associated with uplink resource mapping for simplified SSB transmission, as described in more detail elsewhere herein. For example, the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component that can execute or guide e.g. Figure 9 The process of 900 Figure 10 The process of 1000 Figure 11 110 and / or operations of other processes as described herein. Memory 242 and memory 282 may store data and program codes for network node 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly or after compilation, conversion, and / or interpretation) by one or more processors of network node 110 and / or UE 120, may cause the one or more processors, UE 120, and / or network node 110 to perform or direct, for example, Figure 9 The process of 900 Figure 10 The process of 1000 Figure 11 The process 1100 and / or operations of other processes as described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, among other things.

[0079] In some aspects, the UE 120 may include means for receiving the simplified SSB 134, and / or means for sending uplink communications using uplink resources associated with an identifier indicated by the simplified SSB 134, etc. In some aspects, such means may include means for transmitting uplink communications in conjunction with the simplified SSB 134. Figure 2 One or more components of the UE 120 are depicted, such as the communications manager 140, controller / processor 280, transmit processor 264, TX MIMO processor 266, antenna 252, modem 254, MIMO detector 256, receive processor 258, and the like.

[0080] In some aspects, the network node 110 may include means for configuring a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with another network node 110, and / or means for transmitting the downlink transmission in the cell 102 of the network node 110, etc. In some aspects, such means may include means for configuring a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with another network node 110, and / or means for transmitting the downlink transmission in the cell 102 of the network node 110, etc. Figure 2One or more components of the network node 110 are depicted, such as the communication manager 150, antenna 234, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, modem 232, antenna 234, and the like.

[0081] In some aspects, the network node 110 may include means for sending the simplified SSB 134, and / or means for receiving uplink communications on uplink resources associated with an identifier indicated by the simplified SSB 134, etc. In some aspects, such means may include means for transmitting the simplified SSB 134, and / or means for receiving uplink communications on uplink resources associated with an identifier indicated by the simplified SSB 134, etc. Figure 2 One or more components of the network node 110 are depicted, such as the communication manager 160, antenna 234, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, modem 232, antenna 234, and the like.

[0082] Although Figure 2 The blocks in FIG. 2 are illustrated as distinct components, but the functionality described above with respect to these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0083] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.

[0084] The deployment of a communication system (such as a 5G NR system) can be arranged with various components or constituent parts in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of the network, a RAN node, a core network node, a network element, a base station or network equipment can be implemented in an aggregated architecture or a decomposed architecture. For example, a base station (such as a node B (NB), an evolved NB (eNB), an NR base station, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) performing base station functions can be implemented as an aggregated base station (also known as an independent base station or a monolithic base station) or a decomposed base station. A "network entity" or a "network node" may refer to a decomposed base station or one or more units of a decomposed base station (such as one or more CUs, one or more DUs, one or more RUs or a combination thereof).

[0085] A converged base station (e.g., a converged network node) may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). A decomposed base station (e.g., a decomposed network node) may be configured to utilize a protocol stack that is physically or logically distributed between two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, the CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually spread across one or more other network nodes. The DU may be implemented to communicate with one or more RUs. Each of the CU, DU, and RU may also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), among others.

[0086] Base station type operation or network design may take into account the aggregated nature of base station functionality. For example, a disaggregated base station may be utilized in an IAB network, an open radio access network (O-RAN (such as a network configuration initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate scaling of the communication system by separating base station functionality into one or more units that can be deployed separately. A disaggregated base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented virtually for at least one unit, which may enable flexibility in network design. Various units of the disaggregated base station may be configured for wired or wireless communication with at least one other unit of the disaggregated base station.

[0087] Figure 3 FIG2 is a diagram illustrating an example decomposed base station architecture 300 according to the present disclosure. The decomposed base station architecture 300 can be deployed in the wireless network 100. The decomposed base station architecture 300 can include a CU 310, which can communicate directly with the core network 320 via a backhaul link, or indirectly with the core network 320 through one or more decomposed control units (such as a near-RT RIC 325 via an E2 link, a non-RT RIC 315 associated with the service management and orchestration (SMO) framework 305, or both). The CU 310 can communicate with one or more DUs 330 via corresponding midhaul links (such as via an F1 interface). Each of the DUs 330 can communicate with one or more RUs 340 via corresponding fronthaul links. Each of the RUs 340 can communicate with one or more UEs 120 via corresponding radio frequency (RF) access links. In some implementations, a UE 120 can be served simultaneously by multiple RUs 340.

[0088] Each of the units (including the CU 310, DU 330, RU 340) and the near-RT RIC 325, the non-RT RIC 315, and the SMO framework 305 may include or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each of the units, or an associated processor or controller that provides instructions to one or more communication interfaces of the corresponding unit, may be configured to communicate with one or more of the other units via the transmission medium. In some examples, each of the units may include a wired interface configured to receive signals or transmit signals to one or more of the other units via a wired transmission medium, and a wireless interface that may include a receiver, a transmitter, or a transceiver (such as an RF transceiver) configured to receive signals or transmit signals to one or more of the other units via a wireless transmission medium, or both.

[0089] In some aspects, the CU 310 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, or service data adaptation protocol (SDAP) functions, among others. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by the CU 310. The CU 310 may be configured to handle user plane functions (e.g., central unit-user plane (CU-UP) functions), control plane functions (e.g., central unit-control plane (CU-CP) functions), or a combination thereof. In some implementations, the CU 310 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, the CU 310 may be implemented to communicate with the DU 330 for network control and signaling.

[0090] Each DU 330 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 340. In some aspects, the DU 330 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more higher physical (PHY) layers, at least in part according to a functional split (such as that defined by 3GPP). In some aspects, the one or more higher PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, and the like. In some aspects, the DU 330 may also host one or more lower PHY layers, such as those implemented by one or more modules for fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming, or physical random access channel (PRACH) extraction and filtering. Each layer (which may also be referred to as a module) may be implemented using an interface configured to communicate signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.

[0091] Each RU 340 may implement low-layer functions. In some deployments, the RU 340 controlled by the DU 330 may correspond to a logical node that hosts RF processing functions or low PHY layer functions based on functional split (e.g., functional split defined by 3GPP) (such as low-layer functional split), such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, etc. In this architecture, each RU 340 may be operated to handle over-the-air (OTA) communications with one or more UEs 120. In some specific implementations, real-time and non-real-time aspects of communicating with the control plane and user plane of the RU 340 may be controlled by the corresponding DU 330. In some scenarios, this configuration may enable each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture (such as a vRAN architecture).

[0092] The SMO framework 305 can be configured to support RAN deployment and provisioning of both non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO framework 305 can be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via an operations and maintenance interface (such as the O1 interface). For virtualized network elements, the SMO framework 305 can be configured to interact with a cloud computing platform (such as the Open Cloud (O-Cloud) platform 390) to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface (such as the O2 interface). Such virtualized network elements can include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 315, and near-RT RIC 325. In some implementations, the SMO framework 305 can communicate with hardware aspects of the 4G RAN (such as the Open eNB (O-eNB) 311) via the O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with each of the one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 can also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305.

[0093] The non-RT RIC 315 can be configured to include logic that enables non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 325. The non-RT RIC 315 can be coupled to or in communication with the near-RT RIC 325 (such as via an A1 interface). The near-RT RIC 325 can be configured to include logic that enables near-real-time control and optimization of RAN elements and resources through data collection and actions over an interface (such as via an E2 interface) that connects one or more CUs 310, one or more DUs 330, or both, and the O-eNB with the near-RT RIC 325.

[0094] In some implementations, the non-RT RIC 315 may receive parameters or external enrichment information from an external server in order to generate an AI / ML model to be deployed in the near-RT RIC 325. Such information may be utilized by the near-RT RIC 325 and may be received from a non-network data source or from a network function at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or the near-RT RIC 325 may be configured to regulate RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns in performance and employ AI / ML models to perform corrective actions through the SMO framework 305 (such as via reconfiguration of the O1 interface) or through the creation of RAN management policies (such as A1 interface policies).

[0095] like Figure 3 As further shown, different types of SSBs can be transmitted in two or more cells 102. In some aspects, different types of SSBs can be transmitted in adjacent cells 102. As an example, a first RU 340 can transmit (e.g., can broadcast, can multicast) a full SSB 132 in a first cell 102, while a second RU 340 can transmit (e.g., can broadcast, can multicast) a reduced SSB 134 in a second cell 102 adjacent to the first cell 102. Utilizing the reduced SSB 134 in a cell 102 in the decomposed base station architecture 300 enables reduced radio resource usage and / or energy consumption in the cell 102.

[0096] In some aspects, a UE 120 in a cell 102 of an RU 340 may include a communications manager 140. As described in greater detail elsewhere herein, the communications manager 140 may receive a simplified SSB 134 and may transmit uplink communications using uplink resources associated with an identifier indicated by the simplified SSB 134. The identifier may be associated with the RU 340 transmitting the simplified SSB 134 and / or may be associated with one or more aspects of the simplified SSB 134. Additionally or alternatively, the communications manager 140 may perform one or more other operations described herein.

[0097] In some aspects, a RU 340 (e.g., configured to transmit a full SSB 132) may include a communications manager 150. As described in greater detail elsewhere herein, the communications manager 150 may configure a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with another RU 340, and may transmit the downlink transmission in the cell 102 of the RU 340. Additionally or alternatively, the communications manager 150 may perform one or more other operations described herein.

[0098] In some aspects, the RU 340 (e.g., configured to transmit the simplified SSB 134) may include the communication manager 160. As described in greater detail elsewhere herein, the communication manager 160 may transmit the simplified SSB 134 and may receive uplink communications on uplink resources associated with an identifier indicated by the simplified SSB 134. Additionally or alternatively, the communication manager 160 may perform one or more other operations described herein.

[0099] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.

[0100] Figure 4 4 is a diagram illustrating an example 400 of a synchronization signal (SS) hierarchical structure according to the present disclosure. Figure 4 As shown, the SS hierarchy may include an SS burst set 405, which may include a plurality of SS bursts 410 (shown as SS Burst 0 through SS Burst N-1, where N is the maximum number of repetitions of an SS burst 410 that may be sent by one or more network nodes).

[0101] As further shown, each SS burst 410 may include one or more complete SSBs 132 (shown as complete SSB 0 through complete SSB M-1), where M is the maximum number of complete SSBs 132 that may be carried by the SS burst 410. In some aspects, different complete SSBs 132 may be beamformed in different ways (e.g., transmitted using different beams) and may be used for cell search, cell acquisition, beam management, and / or beam selection (e.g., as part of an initial network access procedure). The SS burst set 405 may be sent periodically (such as every X milliseconds) by a wireless node (e.g., network node 110), as shown. Figure 4 In some aspects, the SS burst set 405 can have a fixed or dynamic length (in Figure 4 In some cases, the SS burst set 405 or SS burst 410 may be referred to as a discovery reference signal (DRS) transmission window or an SSB measurement time configuration (SMTC) window.

[0102] A complete SSB 132 includes resources that carry a PSS 415, an SSS 420, and a PBCH 425. In some aspects, multiple complete SSBs 132 are included in an SS burst 410 (e.g., utilizing transmission on different beams), and the PSS 415, SSS 420, and / or PBCH 425 may be the same across each complete SSB 132 of an SS burst 410. In some aspects, a single complete SSB 132 may be included in an SS burst 410. In some aspects, a complete SSB 132 may be at least four symbols (e.g., OFDM symbols) in length, with each symbol carrying one or more of: a PSS 415 (e.g., occupying one symbol), an SSS 420 (e.g., occupying one symbol), and / or a PBCH 425 (e.g., occupying two symbols). In some aspects, a complete SSB 132 may be referred to as an SS / PBCH block.

[0103] In some aspects, the symbols of the complete SSB 132 are consecutive, such as Figure 4 As shown. In some aspects, the symbols of the complete SSB 132 are non-contiguous. Similarly, in some aspects, one or more complete SSBs 132 of the SS burst 410 may be transmitted in contiguous radio resources (e.g., consecutive symbols) during one or more time slots. Additionally or alternatively, one or more complete SSBs 132 of the SS burst 410 may be transmitted in non-contiguous radio resources.

[0104] In some aspects, the SS burst 410 may have a burst periodicity, and the complete SSB 132 of the SS burst 410 may be transmitted by the wireless node (e.g., the network node 110) according to the burst periodicity. In this case, the complete SSB 132 may be repeated during each SS burst 410. In some aspects, the SS burst set 405 may have a burst set periodicity, whereby the SS bursts 410 in the SS burst set 405 are transmitted by the wireless node according to a fixed burst set periodicity. In other words, the SS burst 410 may be repeated during each SS burst set 405.

[0105] In some aspects, the full SSB 132 may include an SSB index that may correspond to a beam used to carry the full SSB 132. The UE 120 may monitor and / or measure the full SSB 132 using different receive (Rx) beams during an initial network access procedure and / or a cell search procedure, etc. Based at least in part on the monitoring and / or measurement, the UE 120 may indicate one or more full SSBs 132 having the best signal parameters (e.g., reference signal received power (RSRP) parameters) to the network node 110 (e.g., directly or via one or more other network nodes). The network node 110 and the UE 120 may use the indicated one or more full SSBs 132 to select one or more beams to be used for communication between the network node 110 and the UE 120 (e.g., for a random access channel (RACH) procedure). Additionally or alternatively, UE 120 may use the complete SSB 132 and / or the SSB index to determine the cell timing of a cell (e.g., a serving cell) via which the complete SSB 132 is received.

[0106] In some aspects, UE 120 may identify one or more resources (e.g., time domain resources, frequency domain resources) in which network node 110 transmits other downlink signals in cell 102 based at least in part on full SSB 132. For example, UE 120 may identify one or more downlink resources in which network node 110 transmits system information in cell 102 based at least in part on PBCH 425 of full SSB 132. The system information may include one or more system information blocks (SIBs), such as SIB1, SIB2, etc. UE 120 may further identify one or more uplink resources (e.g., time domain resources, frequency domain resources) allocated for transmitting uplink communications in cell 102 based at least in part on PBCH 425. The one or more uplink resources may include uplink resources in which UE 120 is permitted to transmit uplink cell WUS to network node 110, uplink resources in which UE 120 is permitted to transmit RACH transmissions to network node 110, and / or another uplink resource. The RACH transmission may include a message 1 (Msg1) transmission (eg, for a 4-step RACH procedure), a message A (MsgA) transmission (eg, for a 2-step RACH procedure), and / or another type of RACH transmission.

[0107] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 The examples described are different.

[0108] Figure 5 5 is a diagram illustrating an example 500 of a synchronization signal hierarchical structure according to the present disclosure. Figure 5 As shown, the SS hierarchy may include an SS burst set 505, which may include a plurality of SS bursts 510 (shown as SS Burst 0 through SS Burst L-1, where L is the maximum number of repetitions of the SS burst 510 that may be sent by one or more network nodes).

[0109] As further shown, each SS burst 510 may include one or more simplified SSBs 134 (shown as simplified SSB 0 through simplified SSB J-1, where J is the maximum number of simplified SSBs 134 that may be carried by the SS burst 510). In some aspects, different simplified SSBs 134 may be beamformed in different ways (e.g., transmitted using different beams) and may be used for cell search, cell acquisition, beam management, and / or beam selection (e.g., as part of an initial network access procedure). The SS burst set 505 may be sent periodically (such as every W milliseconds) by a wireless node (e.g., network node 110), as shown. Figure 5 In some aspects, the SS burst set 505 may have a fixed or dynamic length (in Figure 5 In some cases, the SS burst set 505 or SS burst 510 may be referred to as a DRS transmission window or SMTC window.

[0110] The simplified SSB 134 (also referred to as a lightweight SSB or a simplified version of the SSB) includes resources that carry the PSS 515. In some aspects, the simplified SSB 134 may include only the PSS 515. In some aspects, the simplified SSB 134 may include only the PSS 515 and the SSS 520 (e.g., without the PBCH 525). In some aspects, the simplified SSB 134 may include the PSS 515, the SSS 520, and a portion of the PBCH 525. In some aspects, multiple simplified SSBs 134 are included in the SS burst 510 (e.g., utilizing transmission on different beams), and the PSS 515, SSS 520, and / or PBCH 525 may be identical across each simplified SSB 134 in the SS burst 510. In some aspects, a single simplified SSB 134 may be included in the SS burst 510. In some aspects, the length of the simplified SSB 134 may be two symbols (e.g., OFDM symbols) or less. For example, the reduced SSB 134 may include one symbol carrying the PSS 515. As another example, the reduced SSB 134 may include two symbols: a first symbol carrying the PSS 515 and a second symbol carrying the SSS 520.

[0111] As indicated above, Figure 5 are provided as examples. Other examples can be found in the Figure 5 The examples described are different.

[0112] Figure 6 is a diagram illustrating an example 600 of identifying uplink resources based at least in part on an uplink map according to the present disclosure. Figure 6 As shown, example 600 may include communications between a UE 120 and a network node 110. The UE 120 and the network node 110 may be included in a wireless network, such as the wireless network 100 described herein. The network node 110 may provide a cell 102 of the wireless network 100. Alternatively, the operations of the network node 110 described in connection with example 600 may be performed by a CU 310, a DU 330, and / or a RU 340 in a decomposed base station architecture 300 in the wireless network 100.

[0113] In cell 102, network node 110 may transmit (e.g., may broadcast, may multicast) a simplified SSB 134 as described herein. UE 120 may receive simplified SSB 134 in cell 102. In some aspects, UE 120 receives simplified SSB 134 while in connected mode (e.g., radio resource control (RRC) active mode) in cell 102. In RRC connected mode, UE 120 may have an established RRC connection with network node 110. In some aspects, UE 120 receives simplified SSB 134 while in idle mode (e.g., RRC idle mode). In idle mode, UE 120 camps on cell 102 without an active connection with network node 110. In some aspects, UE 120 receives simplified SSB 134 while in inactive mode (e.g., RRC inactive mode). Inactive mode may be functionally intermediate between connected mode and idle mode.

[0114] In some aspects, UE 120 determines that network node 110 transmits a simplified SSB 134 (e.g., instead of transmitting full SSB 132), and receives the simplified SSB 134 based at least in part on the determination. In some aspects, UE 120 determines that network node 110 transmits the simplified SSB 134 based at least in part on receiving an indication in a neighboring cell. For example, UE 120 determines that network node 110 transmits the simplified SSB 134 based at least in part on system information (e.g., MIB, SIB1, Physical Downlink Control Channel (PDCCH)) in the neighboring cell, where the system information instructs network node 110 to transmit the simplified SSB 134. As another example, UE 120 is configured (e.g., pre-configured) with information instructing network node 110 to transmit the simplified SSB 134, and UE 120 may determine that network node 110 transmits the simplified SSB 134 based at least in part on the configuration.

[0115] As another example, UE 120 may determine that network node 110 transmits simplified SSB 134 based at least in part on receiving an indication of a mapping between an identifier (e.g., associated with simplified SSB 134 and / or network node 110) and uplink resources allocated for uplink communications (e.g., for uplink cell WUS, for RACH transmission) in cell 102. Here, the indication of the mapping may be received in a neighboring cell 102, and UE 120 may view the indication of the mapping as an implicit / indirect way of signaling to UE 120 that network node 110 transmit a lightweight SSB (e.g., simplified SSB 134).

[0116] At 605, UE 120 may identify uplink resources associated with the identifier indicated by simplified SSB 134. UE 120 may identify the uplink resources based at least in part on determining to send uplink communications to network node 110. The uplink communications may include an uplink cell WUS, a RACH transmission, and / or another type of uplink communication. UE 120 may identify the uplink resources so that UE 120 may use the uplink resources to send uplink communications to network node 110.

[0117] As indicated above, the simplified SSB 134 may include only a portion of the PBCH 525, or may not include the PBCH 525 at all. Consequently, the UE 120 may not be able to directly use the simplified SSB 134 to identify system information (e.g., MIB, SIB1, PDCCH), whereas uplink resources would otherwise be identified in the cell in which the full SSB 132 is transmitted. Accordingly, the UE 120 may use a mapping between identifiers and uplink resources to identify uplink resources. The mapping between identifiers and uplink resources may be signaled to the UE 120 in a neighboring cell, may be configured (e.g., pre-configured) at the UE 120, and / or may be indicated to the UE 120 using another technique.

[0118] The mapping may include a mapping between one or more types of identifiers and one or more uplink resources for transmitting uplink communications in cell 102. For example, if simplified SSB 134 includes only PSS 515, UE 120 may obtain or determine a PSS identifier (e.g., The PSS identifier may be associated with the PSS 515 and may be in a range, such as 0 to 2 (e.g., {0, 1, 2}). The UE 120 may identify uplink resources associated with the PSS identifier determined from the PSS 515 of the simplified SSB 134.

[0119] As another example, if simplified SSB 134 includes only PSS 515 and SSS 520 (e.g., without PBCH 525), UE 120 may obtain or determine a PSS identifier associated with PSS 515 and an SSS identifier (e.g., The SSS identifier may be associated with the SSS 520 and may be in a range, such as 0 to 355 (e.g., {0, 1, ..., 355}). The UE 120 may determine a cell identifier associated with the network node 110 and / or the cell 102 based at least in part on the PSS identifier and the SSS identifier (e.g., As an example, UE 120 may determine the cell identifier based at least in part on:

[0120]

[0121] The cell identifier may be in a range, such as 0 to 1008 (eg, {0, 1, . . . , 1008}). UE 120 may identify uplink resources associated with the cell identifier determined based at least in part on PSS 515 and SSS 520 of simplified SSB 134.

[0122] The mapping may be indicated in a mapping table, a configuration, and / or another type of data structure stored by the UE 120. The UE 120 may store mappings for multiple cells 102 in the wireless network 100. In some aspects, the UE 120 stores multiple mappings for a single cell 102. For example, the UE 120 may store a mapping between a PSS identifier of the cell 102 and uplink resources in the cell 102, may store a mapping between a cell identifier of the cell 102 and uplink resources (e.g., the same uplink resources as the PSS identifier or different uplink resources), etc. As another example, the UE 120 may store a mapping between a PSS identifier of the cell 102 and uplink resources for an uplink cell WUS in the cell 102, may store a mapping between a PSS identifier and uplink resources used for RACH transmissions, etc.

[0123] At 610, UE 120 may use uplink resources to send uplink communications to network node 110. The uplink communications may include an uplink cell WUS, a RACH transmission, and / or another type of uplink communication.

[0124] In this way, the UE 120 has many opportunities / pathways to obtain an appropriate uplink cell WUS configuration and / or an appropriate RACH configuration for a cell that only transmits a lightweight SSB (e.g., abbreviated SSB 134). In some aspects, this information (e.g., mapping information) may be available via SIB1 (e.g., in a neighboring cell), via dedicated RRC signaling (e.g., in a neighboring cell), and / or may be pre-configured at the UE 120, etc. Depending on whether the UE 120 is in connected mode or in idle / inactive mode, the mapping may be signaled to the UE 102 via RRC or medium access control (MAC) control element (MAC-CE) signaling (e.g., for a UE 120 in connected mode) or via system information in a neighboring cell 102 where the UE 120 was located before entering the cell 102 of the network node 110 that transmits the lightweight SSB (e.g., abbreviated SSB 134) (for a UE 120 in idle / inactive mode).

[0125] In a specific implementation where UE 120 turns on the receiver / transmitter for the first time in cell 102 and detects a lightweight SSB (e.g., reduced SSB 134) in cell 102 (or in all cells 102 detectable by UE 120), and UE 120 does not yet have a mapping table between the detected identifier and the uplink resources (e.g., uplink cell WUS configuration, RACH configuration) of cell 102, UE 120 may be pre-configured with a list of K mappings between candidate identifiers and uplink resources (e.g., K uplink cell WUS configurations, K RACH configurations). For example, K may be in the range of 2 to 1008. In aspects where K=1008, UE 120 may try the mappings in ascending order until UE 120 manages to wake up the cell 102 in which UE 120 is already camped. In aspects where K<1008 (e.g., K=4), where the preconfigured mapping is less than the total number of available cell identifiers, the network node 110 of the cell 102 may monitor both the uplink resources configured in the cell 102 (e.g., for uplink cell WUS and / or RACH transmissions) and the set of fallback uplink resources preconfigured for the UE 120 (e.g., for uplink cell WUS and / or RACH transmissions).

[0126] As indicated above, Figure 6 are provided as examples. Other examples can be found in the Figure 6 The examples described are different.

[0127] Figure 7A and Figure 7B is a diagram illustrating an example 700 of identifying uplink resources based at least in part on an uplink map according to the present disclosure. Figure 7A and Figure 7B As shown, example 700 may include communications between a UE 120 and multiple network nodes 110, including network node 110a and network node 110b. UE 120 and network node 110 may be included in a wireless network, such as wireless network 100 described herein. Alternatively, the operations of network node 110 described in conjunction with example 700 may be performed by CU 310, DU 330, and / or RU 340 in a decomposed base station architecture 300 in wireless network 100.

[0128] Network node 110a may provide cell 102a of wireless network 100. In cell 102a, network node 110a may transmit (e.g., may broadcast, may multicast) a full SSB 132 and full system information (e.g., MIB, SIBs including SIB1, PDCCH). Network node 110b may provide cell 102b of wireless network 100. Cell 102a and cell 102b may be neighboring cells (e.g., neighboring and / or partially overlapping cells). In cell 102b, network node 110b may transmit (e.g., may broadcast, may multicast) a reduced SSB 134.

[0129] like Figure 7A and Figure 7B As shown, at 705, the network node 110a may configure downlink transmissions to be sent to UEs in the cell 102a. The downlink transmissions may include a full SSB 132, RRC communication, dedicated RRC signaling, MAC-CE communication, system information, and / or another type of downlink transmission. The system information may include a MIB, a SIB (e.g., SIB0, SIB1), remaining minimum system information (RMSI), a PDCCH, and / or another type of system information.

[0130] The network node 110a may configure the downlink transmission to include an indication of a mapping between an identifier associated with the network node 110b and uplink resources that may be used in the cell 102b to transmit uplink communications (such as uplink cell WUS and / or RACH transmissions, etc.), as well as other types of information. In an implementation where the simplified SSB 134 transmitted by the network node 110b in the cell 102b includes only the PSS 515, the network node 110a may configure the downlink transmission to include a PSS identifier associated with the PSS 515 (e.g., In an implementation where the simplified SSB 134 transmitted by the network node 110b in the cell 102b includes only the PSS 515 and the SSS 520 (e.g., without the PBCH), the network node 110a may configure the downlink transmission to include a cell identifier associated with the network node 110b and / or the cell 102b (e.g., In some aspects, the network node 110a may configure the downlink transmission to include a mapping between a PSS identifier (e.g., identifier) and cell identifier (e.g. In some aspects, the network node 110 may configure the downlink transmission to include a mapping of identifiers and uplink resources for a plurality of cells 102 neighboring the cell 102a in which the simplified SSB 134 is transmitted. In some aspects, the network node 110 may configure the downlink transmission to include an indication that the network node 110b (and / or other network nodes 110 neighboring the network node 110a) is transmitting the simplified SSB 134, such that a UE 120 receiving the downlink transmission may identify the cell 102 in which the simplified SSB 134 is transmitted.

[0131] Figure 7A An example is shown in which network node 110a configures a downlink transmission such that a mapping for network node 110b is included in a mapping table in one or more fields, one or more information elements (IEs), and / or one or more other locations in the downlink transmission. As an example, network node 110a may configure SIB1 to include the mapping table in a servingCellConfigCommon IE in SIB1. As another example, network node 110a may configure SIB1 to include the mapping table in an uplinkConfigCommon IE included in the servingCellConfigCommon IE in SIB1. As an example, network node 110a may configure SIB1 to include the mapping table in a BWP-UplinkCommon IE included in the uplinkConfigCommon IE in SIB1.

[0132] like Figure 7AAs further shown, the mapping table may be included in one or more configurations in one or more IEs. For example, one or more mappings for uplink resources for an uplink cell WUS may be indicated in an uplink cell WUS configuration (e.g., ul-cell-wus-ConfigCommon). The uplink cell WUS configuration may be included in one or more IEs in SIB1 (e.g., SIB1→servingCellConfigCommon→uplinkConfigCommon→BWP-UplinkCommon→ul-cell-wus-ConfigCommon). In some aspects, a corresponding uplink cell WUS configuration may be included for each cell 102 in the plurality of cells 102 (e.g., ul-cell-wus-ConfigCommon_cell0, ul-cell-wus-ConfigCommon_cell1, etc.).

[0133] As another example, one or more mappings for uplink resources used for RACH transmission may be indicated in a RACH configuration (e.g., rach-ConfigCommon IE). The RACH configuration may be included in one or more IEs in SIB1 (e.g., SIB1→servingCellConfigCommon→uplinkConfigCommon→BWP-UplinkCommon→rach-ConfigCommon).

[0134] In some aspects, SIB1 may include multiple RACH configurations for different types of RACH procedures. As an example, SIB1 may include an AdditionalRACH-Config-r17 IE (e.g., SIB1→servingCellConfigCommon→uplinkConfigCommon→BWP-UplinkCommon→AdditionalRACH-Config-r17), which includes a RACH configuration for a two-step RACH procedure (e.g., msgA-ConfigCommon-r17) and a RACH configuration for a four-step RACH procedure (e.g., rach-ConfigCommon-r17). Here, one or more of the RACH configurations may include a mapping for uplink resources used for RACH transmission. As an example, a RACH configuration for a two-step RACH procedure (e.g., msgA-ConfigCommon-r17) may include a mapping of uplink resources for RACH transmission in the two-step RACH procedure, and a RACH configuration for a four-step RACH procedure (e.g., rach-ConfigCommon-r17) may include a mapping of uplink resources for RACH transmission in the four-step RACH procedure.

[0135] The configuration in the downlink transmission may include additional parameters and / or information associated with uplink resources that may be used for uplink cell WUS and / or RACH transmissions in cell 102b. For example, the uplink cell WUS configuration in SIB1 may indicate parameters for uplink resources used for uplink cell WUS transmissions in cell 102b. As another example, the RACH configuration in SIB1 may indicate parameters for uplink resources used for RACH transmissions in cell 102b.

[0136] The parameters for uplink resources may include an indication of time domain allocation for uplink resources, an indication of frequency domain allocation for uplink resources, an indication of spatial domain allocation for uplink resources, and / or an indication of power allocation for uplink resources, etc.

[0137] In some aspects, the time domain allocation for uplink resources may include an indication of time domain resources for uplink resources that occur a certain number of time domain resources after the time slot in which the simplified SSB 134 was received in cell 102 b. For example, the time domain allocation may indicate a number #D time slots / subslots / subframes (e.g., where #D is greater than 0) after the time slot number #S in which the UE 120 detected the simplified SSB 134 in cell 102 b.

[0138] In some aspects, the time domain allocation for uplink resources may include an indication of the number of time domain resources (e.g., symbols, slots, subslots, subframes) used for the uplink resources. The number of time domain resources may correspond to a time period or duration of the uplink resources.

[0139] In some aspects, the frequency domain allocation for uplink resources may include an indication to use, for the uplink resources, frequency domain resources in which the reduced SSB 134 is received. The frequency domain resources may include one or more carriers, one or more frequency bands, one or more physical resource blocks (PRBs), one or more subcarriers, one or more resource elements (REs), and / or one or more frequency domain resources of another type.

[0140] In some aspects, the frequency domain allocation for uplink resources may include an indication of the frequency domain resources used for the uplink resources. The frequency domain resources used for the uplink resources may be indicated relative to the frequency domain resources in which the simplified SSB 134 is received. For example, the frequency domain allocation may indicate that the frequency domain resources are a specific number of PRBs that are larger than the number of PRBs in which the simplified SSB 134 is received. As another example, the frequency domain allocation may indicate that the frequency domain resources are a specific number of PRBs that are smaller than the number of PRBs in which the simplified SSB 134 is received. As another example, the frequency domain allocation may indicate #A PRBs (alternatively, #A=0) on the high frequency side (north) or low frequency side (south) of the last PRB in which the simplified SSB 134 is transmitted.

[0141] In some aspects, the spatial domain allocation for uplink resources may include an indication to use the beam on which the simplified SSB 134 is received for the uplink resources. In some aspects, the spatial domain allocation for uplink resources may include an indication of the beam to use for the uplink resources. The beam to use for the uplink resources is indicated relative to the beam on which the simplified SSB 134 is received. In some aspects, the spatial domain allocation for uplink resources may include an indication to use the same beam as the simplified SSB 134 (e.g., the same beam and [-#B to +#B] beams adjacent to the beam in which the simplified SSB 134 is detected (alternatively, #B=0)) in addition to one or more additional beams.

[0142] In some aspects, the power allocation for the uplink resources may include an indication of a transmit power for the uplink resources based at least in part on a reference signal received power (RSRP) of the simplified SSB 134. The UE 120 may measure the simplified SSB 134 and may determine the RSRP based at least in part on the measurement. The UE 120 may determine the RSRP in decibel-milliwatts (dBM) or another unit. In some aspects, the power allocation for the uplink resources may include an indication of a transmit power for the uplink resources based at least in part on the RSRP of the simplified SSB 134 plus a power delta value. For example, the UE 120 may determine the uplink transmit power for an uplink cell WUS or RACH transmission in the uplink resources as the RSRP + ΔP [in dBm] from the simplified SSB 134.

[0143] In some aspects, the configuration in the downlink transmission includes additional parameters, such as an indication of a sequence to be used for uplink resources, an indication of a timer for continuous uplink transmissions using the uplink resources, and / or an indication of a contention resolution timer for uplink resources, etc.

[0144] The sequence may include Zadoff-Chu parameters or parameters of any new sequence to be used for uplink resources. A timer for uplink continuous transmission using uplink resources may be indicated by the ul-cell-Wus-prohibit-timer IE in milliseconds, seconds, and / or another time unit. The timer may define the time between consecutive transmissions of uplink communications using uplink resources (e.g., consecutive uplink cell WUS transmissions, consecutive RACH transmissions).

[0145] In some aspects, the uplink cell WUS is used only from the first UE 120 entering / camping in the cell 102b (e.g., after transmission of the abbreviated SSB 134). When the network node 110b receives the first uplink cell WUS from the UE 120 in the cell 102b, the network node 110b begins transmitting the complete SSB 132 with all associated system information, and the network node 110a then does not need to transmit any information related to contention in the cell 102b (e.g., no physical downlink shared channel (PDSCH) / physical uplink shared channel (PUSCH) traffic and no other UEs camping in the cell).

[0146] In some aspects, the uplink cell WUS may be used from a UE in cell 102b even if there is PDSCH / PUSCH traffic in cell 102b, or even if there are other UEs in idle / inactive mode in cell 102b. In these aspects, the network node 110a may send information about contention resolution (in addition to the other IEs discussed above). This information may include the contention resolution timer described above. The contention resolution timer may be indicated in the ul-cell-wus-ContentionResolutionTimer IE, with an enumeration value of {sf8,sf16,sf24,sf32,sf40,sf48,sf56,sf64,sf128,sf256,sf512,sf1024}.

[0147] In some aspects, the uplink cell WUS can be used as a special form of RACH transmission. In these aspects, the RACH configuration used for RACH transmission can be used as the configuration for the uplink cell WUS in the same manner as the uplink cell WUS configuration. In other words, in these aspects, the uplink cell WUS configuration can be replaced by the RACH configuration.

[0148] like Figure 7A and Figure 7B As shown, in cell 102a, network node 110a may send a downlink transmission and UE 120 may receive the downlink transmission at 710. UE 120 may receive downlink communications when UE 120 is in idle mode, in inactive mode, and / or in connected mode in cell 102a.

[0149] It should be noted that Figure 7A The example downlink transmissions (e.g., SIB1) illustrated are examples, and the configurations, mappings, and / or mapping tables described herein may be included in other types of downlink transmissions. For example, for a UE 120 in idle / inactive mode in a cell 102a, a cell identifier or A mapping table is provided between the uplink cell WUS configuration or RACH configuration of the cell 102 that transmits a lightweight SSB (e.g., the simplified SSB 134). As another example, for a UE 120 in connected mode in the cell 102a, the cell identifier or A mapping table between the uplink cell WUS configuration or RACH configuration of the cell 102 that sends a lightweight SSB (e.g., the simplified SSB 134) and the uplink cell WUS configuration.

[0150] For example, when UE 120 is in idle mode or in inactive mode in cell 102a, UE 120 may receive a downlink transmission in an RRC communication (the downlink transmission including an indication of a mapping between an identifier and an uplink resource). As another example, when UE 120 is in RRC connected mode in cell 102a, UE 120 may receive a downlink transmission in a MAC-CE communication (the downlink transmission including an indication of a mapping between an identifier and an uplink resource). As another example, when UE 120 is in idle mode or in inactive mode in cell 102a, UE 120 may receive a downlink transmission in system information (the downlink transmission including an indication of a mapping between an identifier and an uplink resource). As another example, when UE 120 is in RRC connected mode in cell 102a, UE 120 may receive a downlink transmission in RRC signaling (the downlink transmission including an indication of a mapping between an identifier and an uplink resource).

[0151] like Figure 7A and Figure 7B As shown, at 715, UE mobility may cause UE 120 to move from cell 102a of network node 110a to cell 102b of network node 110b. UE 120 may receive simplified SSB 134 in cell 102b. Figure 7A and Figure 7B As shown, at 720, UE 120 may transmit an uplink communication to network node 110b in cell 102b. UE 120 may identify uplink resources for the uplink communication based at least in part on a mapping indicated in a downlink transmission received from network node 110a in cell 102a. Specifically, UE 120 may identify uplink resources for the uplink communication based on a mapping between the uplink resources and an identifier associated with network node 110b and / or cell 102b, the uplink resources being identified based on simplified SSB 134. Alternatively, UE 120 may identify uplink resources in a configuration included in a plurality of configurations preconfigured for UE 120.

[0152] As indicated above, Figure 7A and Figure 7B are provided as examples. Other examples can be found in the Figure 7A and Figure 7B The examples described are different.

[0153] Figure 8A and Figure 8B is a diagram illustrating an example 800 of identifying uplink resources based at least in part on an uplink map according to the present disclosure. Figure 8A and Figure 8BAs shown, example 800 may include communications between a UE 120 and multiple network nodes 110, including network node 110a and network node 110b. UE 120 and network node 110 may be included in a wireless network, such as wireless network 100 described herein. Alternatively, the operations of network node 110 described in conjunction with example 800 may be performed by CU 310, DU 330, and / or RU 340 in a decomposed base station architecture 300 in wireless network 100.

[0154] like Figure 8A and Figure 8B As shown, at 805, the network node 110a may configure the downlink transmission to include an indication of a mapping between uplink resources in the cell 102b and an identifier associated with the network node 110b. Figure 8A and Figure 8B As shown, at 810, when the UE 120 is in the cell 102a, the network node 110a may send (e.g., may broadcast, may multicast, may unicast) a downlink transmission to the UE 120. Figure 8A and Figure 8B As shown, a handover of UE 120 from cell 102a to cell 102b may occur at 815. Subsequently, UE 120 may receive a simplified SSB 134 from network node 110b in cell 102b.

[0155] The network node 110a may configure downlink transmission at 805 and may configure downlink transmission at 810 in conjunction with the respective Figure 7A and Figure 7B The downlink transmission is sent in a similar manner as described at 705 and 710. However, the downlink transmission may be a type of downlink transmission associated with a handover of the UE at 815.

[0156] For example, the network node 110a may configure the handover command to include a mapping, a mapping table (the mapping table including multiple mappings), an uplink cell WUS configuration, and / or a RACH configuration. The network node 110a may send the handover command to the UE 120 over the Xn Application (XnAP) interface in the cell 102a. As another example, the network node 110a may configure an RRC reconfiguration communication (RRCReConfiguration) to include a mapping, a mapping table (the mapping table including multiple mappings), an uplink cell WUS configuration, and / or a RACH configuration. The network node 110a may send the RRC reconfiguration communication to the UE 120 in the cell 102a. As another example, the network node 110a may configure an RRC reconfiguration complete communication (RRCReConfigurationComplete) to include a mapping, a mapping table (the mapping table including multiple mappings), an uplink cell WUS configuration, and / or a RACH configuration. The network node 110a may send the RRC reconfiguration complete communication to the UE 120 in the cell 102a. As another example, the network node 110a may configure an RRC connection setup complete communication (RRCConnectionSetupComplete) to include a mapping, a mapping table (the mapping table including a plurality of mappings), an uplink cell WUS configuration, and / or a RACH configuration. The network node 110a may send the RRC connection setup complete communication to the UE 120 in the cell 102a.

[0157] Additionally and / or alternatively, UE 120 may receive a mapping, a mapping table (the mapping table including multiple mappings), an uplink cell WUS configuration, and / or a RACH configuration from network node 110b in cell 102b in conjunction with the handover. For example, network node 110b may configure an RRC reconfiguration complete communication (RRCReConfigurationComplete) to include a mapping, a mapping table (the mapping table including multiple mappings), an uplink cell WUS configuration, and / or a RACH configuration. Network node 110b may send an RRC connection establishment complete communication to UE 120 in cell 102b in conjunction with the handover. As another example, network node 110b may configure an RRC reestablishment complete communication (RRCReestablishmentComplete) to include a mapping, a mapping table (the mapping table including multiple mappings), an uplink cell WUS configuration, and / or a RACH configuration. Network node 110b may send an RRC reestablishment complete communication to UE 120 in cell 102b in conjunction with the handover.

[0158] like Figure 8A and Figure 8BAs shown, at 820, UE 120 may transmit uplink communications to network node 110b using uplink resources based at least in part on the mapping indicated in the downlink transmission received from network node 110a and / or in the downlink communications received from network node 110b. If reduced SSB 134 includes only PSS 515, UE 120 may obtain or determine a PSS identifier (e.g., PSS 515) based at least in part on the PSS 515 of reduced SSB 134. Specifically, UE 120 may identify uplink resources associated with a PSS identifier determined from PSS 515 of simplified SSB 134.

[0159] If the simplified SSB 134 includes only the PSS 515 and the SSS 520 (e.g., without the PBCH 525), the UE 120 may acquire or determine the PSS identifier associated with the PSS 515 and the SSS identifier (e.g., UE 120 may determine a cell identifier associated with network node 110 and / or cell 102 based at least in part on the PSS identifier and the SSS identifier (e.g., UE 120 may identify uplink resources associated with the cell identifier based at least in part on the mapping.

[0160] As indicated above, Figure 8A and Figure 8B are provided as examples. Other examples can be found in the Figure 8A and Figure 8B The examples described are different.

[0161] Figure 9 is a diagram illustrating an example process 900, performed, for example, by a UE, in accordance with the present disclosure. Example process 900 is an example in which a UE (eg, UE 120) performs operations associated with uplink resource mapping for a reduced SSB cell.

[0162] like Figure 9 As shown, in some aspects, process 900 may include receiving a simplified SSB (block 910). For example, a UE (e.g., using Figure 12 The depicted communications manager 140 and / or receiving component 1202) can receive a simplified synchronization signal block (SSB), as described above.

[0163] like Figure 9 As further shown, in some aspects, process 900 may include sending an uplink communication using uplink resources associated with an identifier indicated by the simplified SSB (block 920). For example, a UE (e.g., using Figure 12 The depicted communications manager 140 and / or transmitting component 1204) can transmit uplink communications using uplink resources associated with the identifier indicated by the simplified SSB, as described above.

[0164] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0165] In a first aspect, the simplified SSB includes only the PSS, and wherein the identifier includes a PSS identifier associated with the PSS.

[0166] In a second aspect, alone or in combination with the first aspect, the simplified SSB includes only the PSS and the SSS, and wherein the identifier includes a cell identifier of a network node associated with the simplified SSB.

[0167] In a third aspect, alone or in combination with one or more of the first and second aspects, the uplink communication comprises an uplink cell WUS.

[0168] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the uplink communication comprises a random access channel (RACH) transmission.

[0169] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 900 includes identifying uplink resources based at least in part on a mapping between an identifier and the uplink resource.

[0170] In a sixth aspect, alone or in combination with one or more of aspects 1 to 5, process 900 includes receiving an indication of a mapping between an identifier and an uplink resource in a first cell, wherein, in order to receive a simplified SSB, one or more processors are configured to receive the simplified SSB in a second cell.

[0171] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 900 includes receiving an indication of a mapping in an RRC communication when the UE is in an idle mode or in an inactive mode in a first cell.

[0172] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, process 900 includes receiving an indication of a mapping in a MAC-CE communication when the UE is in RRC connected mode in a first cell.

[0173] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, process 900 includes receiving an indication of mapping in system information when the UE is in idle mode or in inactive mode in the first cell.

[0174] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, process 900 includes receiving an indication of the mapping in dedicated RRC signaling when the UE is in RRC connected mode in the first cell.

[0175] In an eleventh aspect, alone or in combination with one or more of aspects one to ten, process 900 includes receiving an indication of a mapping table comprising at least one of: a mapping between a primary synchronization signal (PSS) identifier and an uplink resource, or a mapping between a cell identifier and an uplink resource, wherein the identifier comprises at least one of a PSS identifier or a cell identifier.

[0176] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, process 900 includes receiving an indication of a mapping table in a SIB.

[0177] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, process 900 includes receiving an indication of a mapping table in a RACH configuration IE in a SIB.

[0178] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, process 900 includes receiving an indication of a mapping table in an uplink cell WUS configuration IE in a SIB.

[0179] In a fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, process 900 includes receiving an indication of a mapping table in an AdditionalRACH-Config-r17 IE in a SIB.

[0180] In a sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, process 900 includes receiving an indication of a mapping table in a handover command from a first cell that is different from a second cell from which the reduced SSB is received.

[0181] In a seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, process 900 includes receiving an indication of a mapping table in an RRC reconfiguration communication from a first cell that is different from a second cell from which the simplified SSB is received.

[0182] In an eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, process 900 includes receiving an indication of a mapping table in an RRC reconfiguration complete communication from the same cell from which the simplified SSB was received.

[0183] In a nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, process 900 includes receiving an indication of a mapping table in an RRC re-establishment complete communication from the same cell from which the simplified SSB was received.

[0184] In the twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, process 900 includes receiving an indication of a mapping table in an RRC connection setup complete communication from a first cell that is different from a second cell from which the simplified SSB is received.

[0185] In a twenty-first aspect, alone or in combination with one or more of aspects 1 to 20, process 900 includes receiving an indication of a mapping table in an RRC reconfiguration complete communication from a first cell that is different from a second cell from which the simplified SSB is received.

[0186] In aspect 22, either alone or in combination with one or more of aspects 1 to 21, uplink resources are indicated in a configuration, and wherein the configuration includes at least one of: a first indication of a time domain allocation for the uplink resources, a second indication of a frequency domain allocation for the uplink resources, a third indication of a spatial domain allocation for the uplink resources, or a fourth indication of a power allocation for the uplink resources.

[0187] In aspect twenty-third, alone or in combination with one or more of aspects one to twenty-second, the time domain allocation includes an indication of time domain resources for uplink resources that appear after a certain number of time domain resources from the time slot in which the simplified SSB is received.

[0188] In a twenty-fourth aspect, alone or in combination with one or more of the first to twenty-third aspects, the time domain allocation includes an indication of a number of time domain resources used for uplink resources.

[0189] In a twenty-fifth aspect, alone or in combination with one or more of the first to twenty-fourth aspects, the frequency domain allocation includes an indication of using, for uplink resources, frequency domain resources in which the simplified SSB is received.

[0190] In aspect twenty-six, alone or in combination with one or more of aspects one to twenty-fifth, the frequency domain allocation includes an indication of frequency domain resources for uplink resources, wherein the frequency domain resources for uplink resources are indicated relative to the frequency domain resources in which the simplified SSB is received.

[0191] In a twenty-seventh aspect, alone or in combination with one or more of the first to twenty-sixth aspects, the spatial domain allocation includes an indication of using a beam on which a reduced SSB is received for uplink resources.

[0192] In aspect twenty-eight, either alone or in combination with one or more of aspects one to twenty-seven, the spatial domain allocation comprises an indication of a beam to be used for uplink resources, wherein the beam to be used for uplink resources is indicated relative to the beam on which the simplified SSB is received.

[0193] In a twenty-ninth aspect, alone or in combination with one or more of aspects 1 to 28, the power allocation includes an indication of a transmit power based at least in part on RSRP of a simplified SSB for uplink resource usage.

[0194] In a thirtieth aspect, either alone or in combination with one or more of aspects one to twenty-ninth, the power allocation comprises an indication of a transmit power for uplink resource usage based at least in part on the RSRP for simplified SSB plus a power delta value.

[0195] In a thirty-first aspect, alone or in combination with one or more of the first to thirtieth aspects, the configuration includes an indication of a sequence to be used for uplink resources.

[0196] In a thirty-second aspect, alone or in combination with one or more of the first to thirty-first aspects, the configuration includes an indication of a timer for continuous transmission of uplink communications.

[0197] In a thirty-third aspect, alone or in combination with one or more of the first to thirty-second aspects, the configuration includes an indication of a contention resolution timer for uplink communications.

[0198] In a thirty-fourth aspect, alone or in combination with one or more of the first to thirty-third aspects, process 900 includes identifying uplink resources in a configuration included in a plurality of configurations preconfigured for the UE.

[0199] although Figure 9 Example blocks of process 900 are shown, but in some aspects, process 900 may include Figure 9The blocks may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in process 900. Additionally or alternatively, two or more blocks of the blocks of process 900 may be executed in parallel.

[0200] Figure 10 is a diagram illustrating an example process 1000, for example, performed by a network node, in accordance with the present disclosure. Example process 1000 is an example in which a network node (eg, network node 110) performs operations associated with uplink resource mapping for a simplified SSB cell.

[0201] like Figure 10 As shown, in some aspects, process 1000 may include sending a simplified SSB (block 1010). For example, a network node (e.g., using Figure 15 The depicted communications manager 150 and / or sending component 1504) can send simplified SSB, as described above.

[0202] like Figure 10 As further shown, in some aspects, process 1000 may include receiving an uplink communication on an uplink resource associated with an identifier indicated by the simplified SSB (block 1020). For example, network node 110 (e.g., using Figure 15 The depicted communications manager 150 and / or receiving component 1502) can receive uplink communications on uplink resources associated with the identifier indicated by the simplified SSB, as described above.

[0203] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0204] In a first aspect, the simplified SSB includes only a primary synchronization signal (PSS), and wherein the identifier includes a PSS identifier associated with the PSS.

[0205] In a second aspect, alone or in combination with the first aspect, the simplified SSB includes only the PSS and the SSS, and wherein the identifier includes a cell identifier associated with the apparatus.

[0206] In a third aspect, alone or in combination with one or more of the first and second aspects, the uplink communication comprises an uplink cell WUS.

[0207] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the uplink communication includes RACH transmission.

[0208] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 1000 includes sending an indication of a mapping between an identifier and an uplink resource in an RRC reconfiguration complete communication.

[0209] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, process 1000 includes sending an indication of a mapping between an identifier and an uplink resource in an RRC re-establishment complete communication.

[0210] although Figure 10 Example blocks of process 1000 are shown, but in some aspects, process 1000 may include Figure 10 1000. In some embodiments, the process 1000 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in FIG. Additionally or alternatively, two or more blocks of the blocks of process 1000 may be executed in parallel.

[0211] Figure 11 is a diagram illustrating an example process 1100, for example, performed by a first network node, in accordance with the present disclosure. The example process 1100 is an example in which a first network node (eg, the first network node 110) performs operations associated with uplink resource mapping for a simplified SSB cell.

[0212] like Figure 11 As shown, in some aspects, process 1100 may include configuring a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with a second network node (block 1110). For example, a first network node (e.g., using Figure 18 The depicted communications manager 150 and / or configuration component 1808) can configure the downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with the second network node, as described above.

[0213] like Figure 11 As further shown, in some aspects, process 1100 may include sending a downlink transmission in a cell of a first network node (block 1120). For example, the first network node (e.g., using Figure 18 The depicted communications manager 150 and / or transmitting component 1804) can transmit a downlink transmission in a cell of the first network node, as described above.

[0214] Process 1100 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0215] In a first aspect, the identifier comprises a Primary Synchronization Signal (PSS) identifier associated with the second network node.

[0216] In a second aspect, alone or in combination with the first aspect, the identifier comprises a cell identifier associated with the second network node.

[0217] In a third aspect, alone or in combination with one or more of the first and second aspects, the uplink resources include uplink cell WUS resources.

[0218] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the uplink resources include RACH transmission resources.

[0219] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the downlink transmission comprises RRC communication.

[0220] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the downlink transmission comprises a MAC-CE communication.

[0221] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the downlink transmission includes system information.

[0222] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the downlink transmission comprises a system information block (SIB).

[0223] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the mapping is indicated in a RACH configuration IE in a SIB.

[0224] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, the mapping is indicated in an uplink cell WUS configuration IE in a SIB.

[0225] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the mapping is indicated in an AdditionalRACH-Config-r17 IE in the SIB.

[0226] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the downlink transmission comprises a handover command.

[0227] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the downlink transmission comprises an RRC reconfiguration communication.

[0228] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the downlink transmission comprises an RRC connection setup complete communication.

[0229] In a fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the downlink transmission comprises an RRC reconfiguration complete communication.

[0230] In a sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, an indication of the mapping is included in a mapping table in the downlink transmission.

[0231] In the seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, the mapping table includes at least one of the following: a mapping between uplink resources and a PSS identifier associated with the second network node, or a mapping between uplink resources and a cell identifier associated with the second network node.

[0232] In the eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, uplink resources are indicated in a configuration in a downlink transmission, and wherein the configuration includes at least one of the following: an indication of a time domain allocation for the uplink resources, an indication of a frequency domain allocation for the uplink resources, an indication of a spatial domain allocation for the uplink resources, or an indication of a power allocation for the uplink resources.

[0233] In a nineteenth aspect, alone or in combination with one or more of aspects one to eighteen, the time domain allocation comprises an indication of a time domain resource for uplink resources that occurs after a certain number of time domain resources from a time slot in which the second network node is to send a simplified SSB.

[0234] In a twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, the time domain allocation comprises an indication of a number of time domain resources used for uplink resources.

[0235] In a twenty-first aspect, alone or in combination with one or more of the first to twentieth aspects, the frequency domain allocation includes an indication of frequency domain resources in which the second network node is to send a reduced SSB for uplink resource usage.

[0236] In aspect 22, alone or in combination with one or more of aspects 1 to 21, the frequency domain allocation includes an indication of frequency domain resources for uplink resources, wherein the frequency domain resources for uplink resources are indicated relative to the frequency domain resources in which the second network node is to send a simplified SSB.

[0237] In a twenty-third aspect, alone or in combination with one or more of the first to twenty-second aspects, the spatial domain allocation includes an indication of a beam on which the second network node is to transmit the reduced SSB for uplink resource usage.

[0238] In aspect 24, alone or in combination with one or more of aspects 1 to 23, the spatial domain allocation includes an indication of a beam to be used for uplink resources, wherein the beam to be used for uplink resources is indicated relative to the beam on which the second network node is to send the simplified SSB.

[0239] In a twenty-fifth aspect, alone or in combination with one or more of the first to twenty-fourth aspects, the power allocation comprises an indication of a transmit power based at least in part on an RSRP of a simplified SSB associated with the second network node for uplink resource usage.

[0240] In a twenty-sixth aspect, alone or in combination with one or more of aspects one to twenty-fifth, the power allocation comprises an indication of a transmit power for uplink resource usage based at least in part on an RSRP of a simplified SSB associated with the second network node plus a power delta value.

[0241] In a twenty-seventh aspect, alone or in combination with one or more of the first to twenty-sixth aspects, the configuration comprises an indication of a sequence to be used for uplink resources.

[0242] In a twenty-eighth aspect, alone or in combination with one or more of the first to twenty-seventh aspects, the configuration includes an indication of a timer for continuous transmission of uplink communications to be transmitted using uplink resources.

[0243] In a twenty-ninth aspect, alone or in combination with one or more of the first to twenty-eighth aspects, the configuration includes an indication of a contention resolution timer for uplink communications to be sent using uplink resources.

[0244] although Figure 11 Example blocks of process 1100 are shown, but in some aspects, process 1100 may include Figure 11 1100. In some embodiments, the process 1100 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 1100. Additionally or alternatively, two or more blocks of the blocks of process 1100 may be executed in parallel.

[0245] Figure 121 is a diagram of an example apparatus 1200 for wireless communication according to the present disclosure. Apparatus 1200 may be UE 120, or UE 120 may include apparatus 1200. In some aspects, apparatus 1200 includes a receiving component 1202 and a transmitting component 1204 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1200 may communicate with another apparatus 1206 (such as a UE, a network node, or another wireless communication device) using receiving component 1202 and transmitting component 1204. As further shown, apparatus 1200 may include a communication manager 140. Communication manager 140 may include one or more of an identification component 1208, among others.

[0246] In some aspects, the apparatus 1200 may be configured to perform the Figure 6 8. Additionally or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein, such as Figure 9 The process 900. In some aspects, Figure 12 The device 1200 and / or one or more components shown may include a combination of Figure 2 One or more components of the described UE 120. Additionally or alternatively, Figure 12 One or more of the components shown may be combined Figure 2 In one or more components described herein, the components may be implemented in a manner that is at least partially implemented as software stored in a memory. In addition or alternatively, one or more components in a set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code that are stored in a non-transitory computer-readable medium and that can be executed by a controller or processor to perform the function or operation of the component.

[0247] The receiving component 1202 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the device 1206. The receiving component 1202 may provide the received communications to one or more other components of the device 1200. In some aspects, the receiving component 1202 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the device 1200. In some aspects, the receiving component 1202 may include in conjunction with Figure 2 The depicted UE 120 may include one or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof.

[0248] The transmitting component 1204 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1206. In some aspects, one or more other components of the apparatus 1200 may generate communications and may provide the generated communications to the transmitting component 1204 for transmission to the apparatus 1206. In some aspects, the transmitting component 1204 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the apparatus 1206. In some aspects, the transmitting component 1204 may include a combination of Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof, of the depicted UE 120. In some aspects, the transmit component 1204 can be co-located with the receive component 1202 in a transceiver.

[0249] Receiving component 1202 can receive the SSB (eg, from device 1206). Transmitting component 1204 can transmit an uplink communication (eg, to another device 1206) using uplink resources associated with the identifier indicated by the simplified SSB.

[0250] Identification component 1208 may identify the uplink resource based at least in part on a mapping between the identifier and the uplink resource. Receiving component 1202 may receive, in a first cell, an indication of a mapping between the identifier and the uplink resource. Receiving component 1202 may receive an indication of a mapping table including mappings between PSS identifiers and uplink resources. Receiving component 1202 may receive an indication of a mapping table including mappings between cell identifiers and uplink resources. Identification component 1208 may identify the uplink resource in a configuration included in a plurality of configurations preconfigured for the UE.

[0251] Figure 12 The number and arrangement of components shown are provided as examples. In practice, there may be Figure 12 The components shown may include additional components, fewer components, different components, or components arranged in a different manner than those shown. Figure 12 Two or more components shown may be implemented in a single component, or Figure 12 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Figure 12 The illustrated set of components (one or more) may be described as being executable by Figure 12 Another group of components is shown performing one or more functions.

[0252] Figure 13is a diagram illustrating an example 1300 of a hardware implementation for an apparatus 1305 employing a processing system 1310 according to the present disclosure. The apparatus 1305 may be a UE 120.

[0253] The processing system 1310 may be implemented using a bus architecture, generally represented by bus 1315. Bus 1315 may include any number of interconnecting buses and bridges, depending on the specific application of the processing system 1310 and the overall design constraints. Bus 1315 links together various circuits including one or more processors and / or hardware components (represented by processor 1320, illustrated components, and computer-readable media / memory 1325). Bus 1315 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and / or power management circuits.

[0254] The processing system 1310 may be coupled to a transceiver 1330. The transceiver 1330 is coupled to one or more antennas 1335. The transceiver 1330 provides components for communicating with various other devices via a transmission medium. The transceiver 1330 receives signals from the one or more antennas 1335, extracts information from the received signals, and provides the extracted information to the processing system 1310 (specifically, the receiving component 1202). In addition, the transceiver 1330 receives information from the processing system 1310 (specifically, the transmitting component 1204) and generates signals to be applied to the one or more antennas 1335 based at least in part on the received information.

[0255] Processing system 1310 includes a processor 1320 coupled to a computer-readable medium / memory 1325. Processor 1320 is responsible for general processing, including executing software stored on computer-readable medium / memory 1325. This software, when executed by processor 1320, enables processing system 1310 to perform the various functions described herein for any particular device. Computer-readable medium / memory 1325 may also be used to store data manipulated by processor 1320 when executing the software. The processing system also includes at least one of the illustrated components. A component may be a software module running on processor 1320, resident / stored in computer-readable medium / memory 1325, one or more hardware modules coupled to processor 1320, or some combination thereof.

[0256] In some aspects, the processing system 1310 may be a component of the UE 120 and may include the memory 282 and / or at least one of the TX MIMO processor 266, the RX processor 258, and / or the controller / processor 280. In some aspects, the apparatus 1305 for wireless communication includes means for receiving a simplified SSB and means for transmitting uplink communications using uplink resources associated with an identifier associated with the simplified SSB. The aforementioned means may be one or more of the aforementioned components of the apparatus 1200 and / or the processing system 1310 of the apparatus 1305 configured to perform the functions recited by the aforementioned means. As described elsewhere herein, the processing system 1310 may include the TX MIMO processor 266, the RX processor 258, and / or the controller / processor 280. In one configuration, the aforementioned means may be the TX MIMO processor 266, the RX processor 258, and / or the controller / processor 280 configured to perform the functions and / or operations recited herein.

[0257] Figure 13 is provided as an example. Other examples can be combined with Figure 13 The examples described are different.

[0258] Figure 14 is a diagram illustrating an example 1400 of a specific implementation of code and circuitry for an apparatus 1405 according to the present disclosure. The apparatus 1405 may be the UE 120, or the UE 120 may include the apparatus 1405.

[0259] like Figure 14 As shown, the apparatus 1405 may include circuitry for receiving simplified SSB (circuitry 1420). For example, the circuitry 1420 may enable the apparatus 1405 to receive simplified SSB.

[0260] like Figure 14 As shown, apparatus 1405 may include code (code 1425) for receiving simplified SSB stored in computer-readable medium 1325. For example, code 1425, when executed by processor 1320, may cause processor 1320 to cause transceiver 1330 to receive simplified SSB.

[0261] like Figure 14 As shown, the apparatus 1405 may include circuitry (circuitry 1430) for transmitting uplink communications using uplink resources associated with the identifier indicated by the simplified SSB. For example, the circuitry 1430 may enable the apparatus 1405 to transmit uplink communications using uplink resources associated with the identifier indicated by the simplified SSB.

[0262] like Figure 14As shown, the apparatus 1405 may include code (code 1435) stored in the computer-readable medium 1325 for transmitting uplink communications using uplink resources associated with the identifier indicated by the simplified SSB. For example, the code 1435, when executed by the processor 1320, may cause the processor 1320 to cause the transceiver 1330 to transmit uplink communications using uplink resources associated with the identifier indicated by the simplified SSB.

[0263] Figure 14 is provided as an example. Other examples can be combined with Figure 14 The examples described are different.

[0264] Figure 15 1 is a diagram of an example apparatus 1500 for wireless communication according to the present disclosure. Apparatus 1500 may be network node 110, or network node 110 may include apparatus 1500. In some aspects, apparatus 1500 includes a receiving component 1502 and a transmitting component 1504 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1500 may communicate with another apparatus 1506 (such as a UE, a network node, or another wireless communication device) using receiving component 1502 and transmitting component 1504. As further shown, apparatus 1500 may include a communications manager 160.

[0265] In some aspects, the apparatus 1500 may be configured to perform the Figure 6 8. Additionally or alternatively, the apparatus 1500 may be configured to perform one or more processes described herein, such as Figure 10 The process 1000. In some aspects, Figure 15 The illustrated apparatus 1500 and / or one or more components may include a combination of Figure 2 One or more components of the described network node 110. Additionally or alternatively, Figure 15 One or more of the components shown may be combined Figure 2 In one or more components described herein, the components may be implemented in a manner that is at least partially implemented as software stored in a memory. In addition or alternatively, one or more components in a set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code that are stored in a non-transitory computer-readable medium and that can be executed by a controller or processor to perform the function or operation of the component.

[0266] Receive component 1502 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from device 1506. Receive component 1502 may provide the received communications to one or more other components of device 1500. In some aspects, receive component 1502 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of device 1500. In some aspects, receive component 1502 may include in conjunction with Figure 2 The depicted network node 110 may include one or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof.

[0267] The transmitting component 1504 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1506. In some aspects, one or more other components of the apparatus 1500 may generate communications and may provide the generated communications to the transmitting component 1504 for transmission to the apparatus 1506. In some aspects, the transmitting component 1504 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the apparatus 1506. In some aspects, the transmitting component 1504 may include a combination of Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof, of the depicted network node 110. In some aspects, the transmit component 1504 can be co-located with the receive component 1502 in a transceiver.

[0268] Transmitting component 1504 may transmit the simplified SSB (eg, to device 1506). Receiving component 1502 may receive uplink communications (eg, from device 1506) on uplink resources associated with the identifier indicated by the simplified SSB.

[0269] Transmitting component 1504 may transmit an indication of a mapping between identifiers and uplink resources in an RRC reconfiguration complete communication.Transmitting component 1504 may transmit an indication of a mapping between identifiers and uplink resources in an RRC reestablishment complete communication.

[0270] Figure 15 The number and arrangement of components shown are provided as examples. In practice, there may be Figure 15 The components shown may include additional components, fewer components, different components, or components arranged in a different manner than those shown. Figure 15 Two or more components shown may be implemented in a single component, or Figure 15The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Figure 15 The illustrated set of components (one or more) may be described as being executable by Figure 15 Another group of components is shown performing one or more functions.

[0271] Figure 16 is a diagram illustrating an example 1600 of a hardware implementation for an apparatus 1605 employing a processing system 1610 according to the present disclosure. The apparatus 1605 may be a network node 110.

[0272] The processing system 1610 may be implemented using a bus architecture, generally represented by bus 1615. Bus 1615 may include any number of interconnecting buses and bridges, depending on the specific application of the processing system 1610 and the overall design constraints. Bus 1615 links together various circuits including one or more processors and / or hardware components (represented by processor 1620, illustrated components, and computer-readable media / memory 1625). Bus 1615 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and / or power management circuits.

[0273] Processing system 1610 may be coupled to transceiver 1630. Transceiver 1630 is coupled to one or more antennas 1635. Transceiver 1630 provides components for communicating with various other devices via a transmission medium. Transceiver 1630 receives signals from one or more antennas 1635, extracts information from the received signals, and provides the extracted information to processing system 1610 (specifically, receiving component 1502). In addition, transceiver 1630 receives information from processing system 1610 (specifically, transmitting component 1504) and generates signals to be applied to one or more antennas 1635 based at least in part on the received information.

[0274] Processing system 1610 includes a processor 1620 coupled to a computer-readable medium / memory 1625. Processor 1620 is responsible for general processing, including executing software stored on computer-readable medium / memory 1625. This software, when executed by processor 1620, enables processing system 1610 to perform the various functions described herein for any particular device. Computer-readable medium / memory 1625 may also be used to store data manipulated by processor 1620 when executing the software. The processing system also includes at least one of the illustrated components. A component may be a software module running on processor 1620, resident / stored in computer-readable medium / memory 1625, one or more hardware modules coupled to processor 1620, or some combination thereof.

[0275] In some aspects, the processing system 1610 may be a component of the network node 110 and may include the memory 242 and / or at least one of the TX MIMO processor 230, the RX processor 238, and / or the controller / processor 240. In some aspects, the apparatus 1605 for wireless communication includes means for transmitting a simplified SSB and means for receiving uplink communications on uplink resources associated with an identifier indicated by the simplified SSB. The aforementioned means may be one or more of the aforementioned components of the apparatus 1500 and / or the processing system 1610 of the apparatus 1605 configured to perform the functions recited by the aforementioned means. As described elsewhere herein, the processing system 1610 may include the TX MIMO processor 230, the receive processor 238, and / or the controller / processor 240. In one configuration, the aforementioned means may be the TX MIMO processor 230, the receive processor 238, and / or the controller / processor 240 configured to perform the functions and / or operations recited herein.

[0276] Figure 16 is provided as an example. Other examples can be combined with Figure 16 The examples described are different.

[0277] Figure 17 is a diagram illustrating an example 1700 of an implementation of code and circuitry for an apparatus 1705 according to the present disclosure. The apparatus 1705 may be the network node 110, or the network node 110 may include the apparatus 1705.

[0278] like Figure 17 As shown, apparatus 1705 may include circuitry for transmitting abbreviated SSB (circuitry 1720). For example, circuitry 1720 may enable apparatus 1705 to transmit abbreviated SSB.

[0279] like Figure 17 As shown, the apparatus 1705 may include code (code 1725) for transmitting abbreviated SSB stored in the computer-readable medium 1625. For example, the code 1725, when executed by the processor 1620, may cause the processor 1620 to cause the transceiver 1630 to transmit the abbreviated SSB.

[0280] like Figure 17 As shown, apparatus 1705 may include circuitry (circuitry 1730) for receiving uplink communications on uplink resources associated with the identifier indicated by the simplified SSB. For example, circuitry 1730 may enable apparatus 1705 to receive uplink communications on uplink resources associated with the identifier indicated by the simplified SSB.

[0281] like Figure 17As shown, the apparatus 1705 may include code (code 1735) stored in the computer-readable medium 1625 for receiving uplink communications on uplink resources associated with the identifier indicated by the simplified SSB. For example, the code 1735, when executed by the processor 1620, may cause the processor 1620 to cause the transceiver 1630 to receive uplink communications on the uplink resources associated with the identifier indicated by the simplified SSB.

[0282] Figure 17 is provided as an example. Other examples can be combined with Figure 17 The examples described are different.

[0283] Figure 18 1 is a diagram of an example apparatus 1800 for wireless communication according to the present disclosure. Apparatus 1800 may be network node 110, or network node 110 may include apparatus 1800. In some aspects, apparatus 1800 includes a receiving component 1802 and a transmitting component 1804 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1800 may communicate with another apparatus 1806 (such as a UE, a network node, or another wireless communication device) using receiving component 1802 and transmitting component 1804. As further shown, apparatus 1800 may include a communication manager 150. Communication manager 150 may include one or more of a configuration component 1808, among others.

[0284] In some aspects, the apparatus 1800 may be configured to perform the Figure 6 8. Additionally or alternatively, the apparatus 1800 may be configured to perform one or more processes described herein, such as Figure 11 The process 1100. In some aspects, Figure 18 The device 1800 and / or one or more components shown may include a combination of Figure 2 One or more components of the described network node 110. Additionally or alternatively, Figure 18 One or more of the components shown may be combined Figure 2 In one or more components described herein, the components may be implemented in a manner that is at least partially implemented as software stored in a memory. In addition or alternatively, one or more components in a set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code that are stored in a non-transitory computer-readable medium and that can be executed by a controller or processor to perform the function or operation of the component.

[0285] The receiving component 1802 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1806. The receiving component 1802 may provide the received communications to one or more other components of the apparatus 1800. In some aspects, the receiving component 1802 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the apparatus 1800. In some aspects, the receiving component 1802 may include a combination of Figure 2 The depicted network node 110 may include one or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof.

[0286] The transmitting component 1804 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1806. In some aspects, one or more other components of the apparatus 1800 may generate communications and may provide the generated communications to the transmitting component 1804 for transmission to the apparatus 1806. In some aspects, the transmitting component 1804 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the apparatus 1806. In some aspects, the transmitting component 1804 may include a combination of Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof, of the depicted network node 110. In some aspects, the transmit component 1804 can be co-located with the receive component 1802 in a transceiver.

[0287] Configuring component 1808 can configure the downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with apparatus 1806. Transmitting component 1804 can transmit the downlink transmission in a cell of apparatus 1800.

[0288] Figure 18 The number and arrangement of components shown are provided as examples. In practice, there may be Figure 18 The components shown may include additional components, fewer components, different components, or components arranged in a different manner than those shown. Figure 18 Two or more components shown may be implemented in a single component, or Figure 18 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Figure 18 The illustrated set of components (one or more) may be described as being executable by Figure 18 Another group of components is shown performing one or more functions.

[0289] Figure 19 is a diagram illustrating an example 1900 of a hardware implementation for an apparatus 1905 employing a processing system 1910 according to the present disclosure. The apparatus 1905 may be a network node 110.

[0290] The processing system 1910 may be implemented using a bus architecture, generally represented by bus 1915. Bus 1915 may include any number of interconnecting buses and bridges, depending on the specific application of the processing system 1910 and the overall design constraints. Bus 1915 links together various circuits including one or more processors and / or hardware components (represented by processor 1920, illustrated components, and computer-readable media / memory 1925). Bus 1915 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and / or power management circuits.

[0291] The processing system 1910 may be coupled to a transceiver 1930. The transceiver 1930 is coupled to one or more antennas 1935. The transceiver 1930 provides components for communicating with various other devices via a transmission medium. The transceiver 1930 receives signals from the one or more antennas 1935, extracts information from the received signals, and provides the extracted information to the processing system 1910 (specifically, the receiving component 1802). In addition, the transceiver 1930 receives information from the processing system 1910 (specifically, the transmitting component 1804) and generates signals to be applied to the one or more antennas 1935 based at least in part on the received information.

[0292] Processing system 1910 includes a processor 1920 coupled to a computer-readable medium / memory 1925. Processor 1920 is responsible for general processing, including executing software stored on computer-readable medium / memory 1925. This software, when executed by processor 1920, enables processing system 1910 to perform the various functions described herein for any particular device. Computer-readable medium / memory 1925 may also be used to store data manipulated by processor 1920 when executing the software. The processing system also includes at least one of the illustrated components. A component may be a software module running on processor 1920, resident / stored in computer-readable medium / memory 1925, one or more hardware modules coupled to processor 1920, or some combination thereof.

[0293] In some aspects, the processing system 1910 may be a component of the network node 110 and may include the memory 242 and / or at least one of the TX MIMO processor 230, the RX processor 238, and / or the controller / processor 240. In some aspects, the apparatus 1905 for wireless communication includes means for configuring a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with another apparatus, and means for transmitting the downlink transmission in a cell of the apparatus 1905. The aforementioned means may be one or more of the aforementioned components of the apparatus 1800 and / or the processing system 1910 of the apparatus 1905 configured to perform the functions recited by the aforementioned means. As described elsewhere herein, the processing system 1910 may include the TX MIMO processor 230, the receive processor 238, and / or the controller / processor 240. In one configuration, the aforementioned means may be the TX MIMO processor 230, the receive processor 238, and / or the controller / processor 240 configured to perform the functions and / or operations recited herein.

[0294] Figure 19 is provided as an example. Other examples can be combined with Figure 19 The examples described are different.

[0295] Figure 20 is a diagram illustrating an example 2000 of a specific implementation of code and circuitry for an apparatus 2005 according to the present disclosure. The apparatus 2005 may be the network node 110, or the network node 110 may include the apparatus 2005.

[0296] like Figure 20 As shown, apparatus 2005 may include circuitry for configuring a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with a second apparatus (circuitry 2020). For example, circuitry 2020 may enable apparatus 2005 to configure a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with a second apparatus.

[0297] like Figure 20 As shown, the apparatus 2005 may include code (code 2025) stored in the computer-readable medium 1925 for configuring a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with the second apparatus. For example, when executed by the processor 1920, the code 2025 may cause the processor 1920 to configure the downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with the second apparatus.

[0298] like Figure 20As shown, apparatus 2005 may include circuitry for sending a downlink transmission in a cell of the first apparatus (circuitry 2030). For example, circuitry 2030 may enable apparatus 2005 to send a downlink transmission in the cell of the first apparatus.

[0299] like Figure 20 As shown, apparatus 2005 may include code (code 2035) stored in computer-readable medium 1925 for transmitting a downlink transmission in a cell of the first apparatus. For example, code 2035, when executed by processor 1920, may cause processor 1920 to cause transceiver 1930 to transmit a downlink transmission in the cell of the first apparatus.

[0300] Figure 20 is provided as an example. Other examples can be combined with Figure 20 The examples described are different.

[0301] The following provides an overview of some aspects of the disclosure:

[0302] Aspect 1: A method of wireless communication performed by an apparatus, the method comprising: receiving a simplified synchronization signal block (SSB); and sending uplink communications using uplink resources associated with an identifier indicated by the simplified SSB.

[0303] Aspect 2: The method of aspect 1, wherein the reduced SSB comprises only a primary synchronization signal (PSS); and wherein the identifier comprises a PSS identifier associated with the PSS.

[0304] Aspect 3: A method according to any one of Aspects 1 to 2, wherein the simplified SSB includes only a primary synchronization signal (PSS) and a secondary synchronization signal (SSS); and wherein the identifier includes a cell identifier of a network node associated with the simplified SSB.

[0305] Aspect 4: The method according to any one of aspects 1 to 3, wherein the uplink communication comprises an uplink cell wake-up signal (WUS).

[0306] Aspect 5: The method according to any one of aspects 1 to 4, wherein the uplink communication comprises a random access channel (RACH) transmission.

[0307] Aspect 6: The method according to any one of aspects 1 to 5, further comprising: identifying the uplink resource based at least in part on a mapping between the identifier and the uplink resource.

[0308] Aspect 7: The method according to any one of aspects 1 to 6, further comprising: receiving, in the first cell, an indication of a mapping between the identifier and the uplink resource.

[0309] Aspect 8: The method according to aspect 7, wherein receiving the simplified SSB includes: receiving the simplified SSB in a second cell.

[0310] Aspect 9: A method according to Aspect 7, wherein receiving the indication of the mapping in the first cell includes: when the device is in idle mode or in inactive mode in the first cell, receiving the indication of the mapping in radio resource control (RRC) communication.

[0311] Aspect 10: A method according to Aspect 7, wherein receiving the indication of the mapping in the first cell includes: when the device is in radio resource control (RRC) connection mode in the first cell, receiving the indication of the mapping in a medium access control (MAC) control element (MAC-CE) communication.

[0312] Aspect 11: The method according to aspect 7, wherein receiving the indication of the mapping in the first cell includes: when the device is in idle mode or in inactive mode in the first cell, receiving the indication of the mapping in system information.

[0313] Aspect 12: A method according to Aspect 7, wherein receiving the indication of the mapping in the first cell includes: when the device is in radio resource control (RRC) connection mode in the first cell, receiving the indication of the mapping in dedicated radio resource control (RRC) signaling.

[0314] Aspect 13: The method according to any one of aspects 1 to 12, further comprising: receiving an indication of a mapping table comprising mappings between primary synchronization signal (PSS) identifiers and the uplink resources.

[0315] Aspect 14: The method according to any one of aspects 1 to 13, further comprising: receiving an indication of a mapping table comprising mappings between cell identifiers and the uplink resources.

[0316] Aspect 15: The method according to aspect 14, wherein receiving the indication of the mapping table comprises receiving the indication of the mapping table in a system information block (SIB).

[0317] Aspect 16: The method of aspect 14, wherein receiving the indication of the mapping table comprises receiving the indication of the mapping table in a random access channel (RACH) configuration information element (IE) in the SIB.

[0318] Aspect 17: The method according to aspect 14, wherein receiving the indication of the mapping table includes: receiving the indication of the mapping table in an uplink cell wake-up signal (WUS) configuration information element (IE) in the SIB.

[0319] Aspect 18: The method of aspect 14, wherein receiving the indication of the mapping table comprises receiving the indication of the mapping table in an AdditionalRACH-Config-r17 information element (IE) in the SIB.

[0320] Aspect 19: The method of aspect 14, wherein receiving the indication of the mapping table comprises receiving the indication of the mapping table in a handover command from a first cell, the first cell being different from a second cell from which the simplified SSB is received.

[0321] Aspect 20: A method according to Aspect 14, wherein receiving the indication of the mapping table includes: receiving the indication of the mapping table in a radio resource control (RRC) reconfiguration communication from a first cell, the first cell being different from the second cell from which the simplified SSB is received.

[0322] Aspect 21: The method of aspect 14, wherein receiving the indication of the mapping table comprises receiving the indication of the mapping table in a radio resource control (RRC) reconfiguration completion communication from the same cell from which the simplified SSB is received.

[0323] Aspect 22: The method of aspect 14, wherein receiving the indication of the mapping table comprises receiving the indication of the mapping table in a radio resource control (RRC) re-establishment completion communication from the same cell from which the simplified SSB is received.

[0324] Aspect 23: A method according to Aspect 14, wherein receiving the indication of the mapping table includes: receiving the indication of the mapping table in a radio resource control (RRC) connection establishment completion communication from a first cell, the first cell being different from the second cell from which the simplified SSB is received.

[0325] Aspect 24: A method according to Aspect 14, wherein receiving the indication of the mapping table includes: receiving the indication of the mapping table in a radio resource control (RRC) reconfiguration completion communication from a first cell, the first cell being different from the second cell from which the simplified SSB is received.

[0326] Aspect 25: A method according to any one of Aspects 1 to 24, wherein the uplink resources are indicated in a configuration; and wherein the configuration includes at least one of the following: a first indication of a time domain allocation for the uplink resources, a second indication of a frequency domain allocation for the uplink resources, a third indication of a spatial domain allocation for the uplink resources, or a fourth indication of a power allocation for the uplink resources.

[0327] Aspect 26: The method according to aspect 25, wherein the time domain allocation includes an indication of a time domain resource for the uplink resource, the time domain resource occurring after a certain number of time domain resources from the time slot in which the simplified SSB is received.

[0328] Aspect 27: The method according to aspect 25, wherein the time domain allocation includes an indication of the number of time domain resources used for the uplink resources.

[0329] Aspect 28: The method according to aspect 25, wherein the frequency domain allocation includes an indication of using the frequency domain resources in which the simplified SSB is received for the uplink resource.

[0330] Aspect 29: The method according to Aspect 25, wherein the frequency domain allocation includes an indication of the frequency domain resources used for the uplink resources, wherein the frequency domain resources used for the uplink resources are indicated relative to the frequency domain resources in which the simplified SSB is received.

[0331] Aspect 30: The method according to aspect 25, wherein the spatial domain allocation includes an indication to use the beam on which the reduced SSB is received for the uplink resource.

[0332] Aspect 31: The method according to aspect 25, wherein the spatial domain allocation includes an indication of a beam used for the uplink resource, wherein the beam used for the uplink resource is indicated relative to the beam on which the reduced SSB is received.

[0333] Aspect 32: The method of aspect 25, wherein the power allocation comprises an indication of a transmit power for the uplink resource usage based at least in part on a reference signal received power (RSRP) of the simplified SSB.

[0334] Aspect 33: The method of aspect 25, wherein the power allocation comprises an indication of a transmit power for the uplink resource usage based at least in part on a reference signal received power (RSRP) of the simplified SSB plus a power delta value.

[0335] Aspect 34: The method according to aspect 25, wherein the configuration includes an indication of a sequence to be used for the uplink resources.

[0336] Aspect 35: The method according to aspect 25, wherein the configuration includes an indication of a timer for continuous transmission of the uplink communication.

[0337] Aspect 36: The method of aspect 25, wherein the configuration comprises an indication of a contention resolution timer for the uplink communication.

[0338] Aspect 37: The method according to any one of aspects 1 to 36, further comprising: identifying the uplink resource in a configuration included in a plurality of configurations preconfigured for the apparatus.

[0339] Aspect 38: A method of wireless communication performed by an apparatus, the method comprising: sending a simplified synchronization signal block (SSB); and receiving uplink communications on uplink resources associated with an identifier indicated by the simplified SSB.

[0340] Aspect 39: The method of aspect 38, wherein the reduced SSB comprises only a primary synchronization signal (PSS); and wherein the identifier comprises a PSS identifier associated with the PSS.

[0341] Aspect 40: The method of any one of aspects 38 to 39, wherein the simplified SSB comprises only a primary synchronization signal (PSS) and a secondary synchronization signal (SSS); and wherein the identifier comprises a cell identifier associated with the apparatus.

[0342] Aspect 41: The method according to any one of aspects 38 to 40, wherein the uplink communication comprises an uplink cell wake-up signal (WUS).

[0343] Aspect 42: The method according to any one of aspects 38 to 41, wherein the uplink communication comprises a random access channel (RACH) transmission.

[0344] Aspect 43: The method according to any one of aspects 38 to 42, the method comprising sending an indication of the mapping between the identifier and the uplink resource in a radio resource control (RRC) reconfiguration complete communication.

[0345] Aspect 44: The method according to any one of aspects 38 to 43, further comprising: sending an indication of the mapping between the identifier and the uplink resource in a radio resource control (RRC) re-establishment complete communication.

[0346] Aspect 45: A method of wireless communication performed by a first device, the method comprising: configuring a downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with a second device; and sending the downlink transmission in a cell of the first device.

[0347] Aspect 46: The method of aspect 45, wherein the identifier comprises a primary synchronization signal (PSS) identifier associated with the second apparatus.

[0348] Aspect 47: The method according to any one of aspects 45 to 46, wherein the identifier comprises a cell identifier associated with the second apparatus.

[0349] Aspect 48: The method according to any one of aspects 45 to 47, wherein the uplink resources include uplink cell wake-up signal (WUS) resources.

[0350] Aspect 49: The method according to any one of aspects 45 to 48, wherein the uplink resources include random access channel (RACH) transmission resources.

[0351] Aspect 50: The method according to any one of aspects 45 to 49, wherein the downlink transmission comprises a radio resource control (RRC) communication.

[0352] Aspect 51: The method according to any one of aspects 45 to 50, wherein the downlink transmission comprises a medium access control (MAC) control element (MAC-CE) communication.

[0353] Aspect 52: The method according to any one of aspects 45 to 51, comprising information.

[0354] Aspect 53: The method according to any one of aspects 45 to 52, wherein the downlink transmission comprises a system information block (SIB).

[0355] Aspect 54: The method of aspect 53, wherein the mapping is indicated in a random access channel (RACH) configuration information element (IE) in the SIB.

[0356] Aspect 55: The method according to aspect 53, wherein the mapping is indicated in an uplink cell wake-up signal (WUS) configuration information element (IE) in the SIB.

[0357] Aspect 56: The method of aspect 53, wherein the mapping is indicated in an AdditionalRACH-Config-r17 information element (IE) in the SIB.

[0358] Aspect 57: The method according to any one of aspects 45 to 56, wherein the downlink transmission includes a handover command.

[0359] Aspect 58: The method according to any one of aspects 45 to 57, wherein the downlink transmission comprises a radio resource control (RRC) reconfiguration communication.

[0360] Aspect 59: The method according to any one of aspects 45 to 58, wherein the downlink transmission comprises a radio resource control (RRC) connection setup complete communication.

[0361] Aspect 60: The method according to any one of aspects 45 to 59, wherein the downlink transmission comprises a radio resource control (RRC) reconfiguration complete communication.

[0362] Aspect 61: The method according to any one of aspects 45 to 60, wherein the indication of the mapping is included in a mapping table in the downlink transmission.

[0363] Aspect 62: A method according to Aspect 61, wherein the mapping table includes at least one of the following items: a mapping between the uplink resources and a primary synchronization signal (PSS) identifier associated with the second device, or a mapping between the uplink resources and a cell identifier associated with the second device.

[0364] Aspect 63: A method according to any one of Aspects 45 to 62, wherein the uplink resources are indicated in a configuration in the downlink transmission; and wherein the configuration includes at least one of the following: an indication of a time domain allocation for the uplink resources, an indication of a frequency domain allocation for the uplink resources, an indication of a spatial domain allocation for the uplink resources, or an indication of a power allocation for the uplink resources.

[0365] Aspect 64: A method according to Aspect 63, wherein the time domain allocation includes an indication of a time domain resource for the uplink resource, which occurs after a certain number of time domain resources from the time slot in which the second network node is to send a simplified synchronization signal block (SSB).

[0366] Aspect 65: The method according to aspect 63, wherein the time domain allocation includes an indication of the number of time domain resources used for the uplink resources.

[0367] Aspect 66: The method according to aspect 63, wherein the frequency domain allocation includes an indication of a frequency domain resource in which the second network node is to send a simplified synchronization signal block (SSB) for the uplink resource usage.

[0368] Aspect 67: The method according to aspect 63, wherein the frequency domain allocation includes an indication of the frequency domain resources used for the uplink resources, and the indication includes sending a simplified synchronization signal block (SSB).

[0369] Aspect 68: The method of aspect 63, wherein the spatial domain allocation comprises an indication of a beam on which the second network node is to send a reduced synchronization signal block (SSB) for the uplink resource usage.

[0370] Aspect 69: The method according to aspect 63, wherein the spatial domain allocation includes an indication of a beam to be used for the uplink resources, the indication including sending a simplified synchronization signal block (SSB).

[0371] Aspect 70: A method according to Aspect 63, wherein the power allocation includes an indication of a transmit power for the uplink resource usage based at least in part on a reference signal received power (RSRP) of a simplified synchronization signal block (SSB) associated with the second device.

[0372] Aspect 71: A method according to Aspect 63, wherein the power allocation includes an indication of a transmit power for the uplink resource usage based at least in part on a reference signal received power (RSRP) of a simplified synchronization signal block (SSB) associated with the second device plus a power delta value.

[0373] Aspect 72: The method according to aspect 63, wherein the configuration includes an indication of a sequence to be used for the uplink resources.

[0374] Aspect 73: The method of aspect 63, wherein the configuration comprises an indication of a timer for continuous transmission of uplink communications to be transmitted using the uplink resources.

[0375] Aspect 74: The method of aspect 63, wherein the configuration comprises an indication of a contention resolution timer for uplink communications to be sent using the uplink resources.

[0376] Aspect 75: An apparatus for wireless communication at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 1 to 74.

[0377] Aspect 76: A device for wireless communication, the device comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 1 to 74.

[0378] Aspect 77: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 1 to 74.

[0379] Aspect 78: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 74.

[0380] Aspect 79: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 74.

[0381] While the foregoing disclosure provides illustration and description, it is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of the various aspects.

[0382] As used herein, the term "component" is intended to be broadly interpreted as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "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, threads of execution, processes and / or functions, etc. As used herein, a "processor" is implemented in hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented by different forms of hardware and / or a combination of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit the various aspects. Therefore, no reference is made herein to specific software code to describe the operation and behavior of the systems and / or methods, as those skilled in the art will appreciate that software and hardware can be designed to implement the systems and / or methods based at least in part on the description herein.

[0383] As used herein, "satisfying a threshold" may mean that a value is greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0384] Although specific combinations of features are set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner not specifically described in the claims and / or not disclosed in the specification. The disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one of" a list of items refers to any combination of these items (which includes a single member). As an example, "at least one of a, b or c" is intended to encompass a, b, c, a+b, a+c, b+c and a+b+c, as well as any combination of multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c and c+c+c, or any other arrangement of a, b and c).

[0385] Any element, action or instruction used herein should not be interpreted as key or necessary unless explicitly described as such. In addition, as used herein, the articles "one" and "a kind of" are intended to include one or more projects and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more projects connected with the article "said", and can be used interchangeably with "one or more". In addition, as used herein, the terms "group" and "cluster" are intended to include one or more projects and can be used interchangeably with "one or more". If only want to refer to a project, the phrase "only one" or similar terms will be used. In addition, as used herein, the terms "have", "have", "have" etc. are intended to be open terms, which do not limit the elements they modify (for example, "an element with" A can also have B). In addition, the phrase "based on" is intended to represent "at least partially based on", unless otherwise explicitly stated. Furthermore, as used herein, the term "or" when used in a series is intended to be open-ended and used interchangeably with "and / or" unless explicitly stated otherwise (e.g., if used in conjunction with "either" or "only one of").

Claims

1. A device for wireless communication, the device comprising: Memory; as well as one or more processors coupled to the memory, the one or more processors configured to: receiving a simplified synchronization signal block (SSB); and Uplink communications are sent using uplink resources associated with the identifier indicated by the simplified SSB.

2. The apparatus of claim 1 , wherein the simplified SSB comprises only a primary synchronization signal (PSS); and The identifier comprises a PSS identifier associated with the PSS.

3. The apparatus of claim 1 , wherein the simplified SSB comprises only a primary synchronization signal (PSS) and a secondary synchronization signal (SSS); and The identifier comprises a cell identifier of a network node associated with the simplified SSB.

4. The apparatus of claim 1 , wherein the uplink communication comprises at least one of: Uplink Cell Wake-up Signal (WUS), or Random Access Channel (RACH) transmission.

5. The apparatus of claim 1 , wherein the one or more processors are further configured to: The uplink resource is identified based at least in part on a mapping between the identifier and the uplink resource.

6. The apparatus of claim 1 , wherein the one or more processors are further configured to: receiving, in a first cell, an indication of a mapping between the identifier and the uplink resource; and Wherein, in order to receive the simplified SSB, the one or more processors are configured to: The simplified SSB is received in a second cell.

7. The apparatus of claim 6, wherein to receive the indication of the mapping in the first cell, the one or more processors are configured to: The indication of the mapping is received in a radio resource control (RRC) communication when the apparatus is in an idle mode or in an inactive mode in the first cell.

8. The apparatus of claim 6, wherein to receive the indication of the mapping in the first cell, the one or more processors are configured to: The indication of the mapping is received in a Medium Access Control (MAC) Control Element (MAC-CE) communication when the apparatus is in a Radio Resource Control (RRC) connected mode in the first cell.

9. The apparatus of claim 6, wherein to receive the indication of the mapping in the first cell, the one or more processors are configured to: The indication of the mapping is received in system information when the apparatus is in idle mode or in inactive mode in the first cell.

10. The apparatus of claim 6, wherein to receive the indication of the mapping in the first cell, the one or more processors are configured to: The indication of the mapping is received in dedicated radio resource control (RRC) signaling when the apparatus is in radio resource control (RRC) connected mode in the first cell.

11. The apparatus of claim 1 , wherein the one or more processors are further configured to: An indication of a mapping table including a mapping between primary synchronization signal (PSS) identifiers and the uplink resources is received.

12. The apparatus of claim 1 , wherein the one or more processors are further configured to: An indication of a mapping table including mappings between cell identifiers and the uplink resources is received in a system information block (SIB).

13. The apparatus of claim 1 , wherein the uplink resources are indicated in a configuration; and The configuration includes at least one of the following: a first indication of a time domain allocation for the uplink resources, a second indication of a frequency domain allocation for the uplink resources, a third indication of a spatial domain allocation for the uplink resources, or A fourth indication of a power allocation for the uplink resources.

14. The apparatus of claim 1 , wherein the one or more processors are further configured to: The uplink resource is identified in a configuration included in a plurality of configurations preconfigured for the apparatus.

15. An apparatus for wireless communication, the apparatus comprising: Memory; as well as one or more processors coupled to the memory, the one or more processors configured to: sending a simplified synchronization signal block (SSB); and An uplink communication is received on uplink resources associated with the identifier indicated by the simplified SSB.

16. The apparatus of claim 15, wherein the simplified SSB comprises only a primary synchronization signal (PSS); and The identifier comprises a PSS identifier associated with the PSS.

17. The apparatus of claim 15, wherein the simplified SSB comprises only a primary synchronization signal (PSS) and a secondary synchronization signal (SSS); and Wherein the identifier comprises a cell identifier associated with the apparatus.

18. The apparatus of claim 15, wherein the uplink communication comprises at least one of: Uplink Cell Wake-up Signal (WUS), or Random Access Channel (RACH) transmission.

19. The apparatus of claim 15, wherein the one or more processors are configured to: An indication of a mapping between the identifier and the uplink resource is sent in a radio resource control (RRC) reconfiguration complete communication.

20. The apparatus of claim 15, wherein the one or more processors are further configured to: An indication of a mapping between the identifier and the uplink resource is sent in a radio resource control (RRC) re-establishment complete communication.

21. A first apparatus for wireless communication, the first apparatus comprising: Memory; as well as one or more processors coupled to the memory, the one or more processors configured to: configuring the downlink transmission to include an indication of a mapping between uplink resources and an identifier associated with the second apparatus; and The downlink transmission is sent in a cell of the first apparatus.

22. The first apparatus of claim 21, wherein the identifier comprises a primary synchronization signal (PSS) identifier associated with the second apparatus.

23. The first apparatus of claim 21, wherein the identifier comprises a cell identifier associated with the second apparatus.

24. The first apparatus of claim 21 , wherein the uplink resources comprise at least one of: Uplink cell wake-up signal (WUS) resources, or Random Access Channel (RACH) transmission resources.

25. The first apparatus of claim 21 , wherein the uplink resources are indicated in a configuration in the downlink transmission; and The configuration includes at least one of the following: a first indication of a time domain allocation for the uplink resources, a second indication of a frequency domain allocation for the uplink resources, a third indication of a spatial domain allocation for the uplink resources, or A fourth indication of a power allocation for the uplink resources.

26. A method of wireless communication performed by an apparatus, the method comprising: Receive simplified synchronization signal block (SSB); as well as Uplink communications are sent using uplink resources associated with the identifier indicated by the simplified SSB.

27. The method of claim 26, wherein the reduced SSB comprises only a primary synchronization signal (PSS); and The identifier comprises a PSS identifier associated with the PSS.

28. The method of claim 26, wherein the simplified SSB includes only a primary synchronization signal (PSS) and a secondary synchronization signal (SSS); and The identifier comprises a cell identifier of a network node associated with the simplified SSB.

29. The method of claim 26, wherein the uplink communication comprises at least one of: Uplink Cell Wake-up Signal (WUS), or Random Access Channel (RACH) transmission.

30. The method of claim 26, further comprising: The uplink resource is identified based at least in part on a mapping between the identifier and the uplink resource.

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