Cyclic shift hopping for uplink reference signals

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive a configuration indicating at least one uplink reference signal resource. The UE may transmit a plurality of uplink reference signals using the at least one uplink reference signal resource, and a cyclic shift for a first port associated with the plurality of uplink reference signals may hop within a subset of a set of possible cyclic shifts. Numerous other aspects are described.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 379,120, filed on October 11, 2022, entitled “CYCLIC SHIFT HOPPING FOR UPLINK REFERENCE SIGNALS,” and U.S. Non-Provisional Patent Application No. 18 / 463,044, filed on September 7, 2023, entitled “CYCLIC SHIFT HOPPING FOR UPLINK REFERENCE SIGNALS,” which are hereby expressly incorporated herein by reference. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for cyclic shift hopping. Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support 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 communications for wireless communication devices, such as user equipment (UE) or multiple UEs. A UE may communicate with a network node via downlink communications and uplink communications. A "downlink" (or "DL") refers to a communication link from a network node to a UE, and an "uplink" (or "UL") refers to a communication link from a UE to a network node. Some wireless networks may support device-to-device communications, such as via a local link (e.g., a side link (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) (CP-OFDM) with cyclic prefix (CP) on the downlink, 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; and 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 at a user equipment (UE). 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 configuration indicating at least one uplink reference signal resource. The one or more processors may be configured to use the at least one uplink reference signal resource to send a plurality of uplink reference signals, wherein a first cyclic shift for the plurality of uplink reference signals is based at least in part on a time function measured in increments longer than one symbol.

[0008] Some aspects described herein relate to an apparatus for wireless communication at a network entity. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to send a configuration indicating at least one uplink reference signal resource. The one or more processors may be configured to receive a plurality of uplink reference signals using the at least one uplink reference signal resource, wherein a first cyclic shift for the plurality of uplink reference signals is based at least in part on a time function measured in increments longer than one symbol.

[0009] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include a memory and one or more processors, the one or more processors being coupled to the memory. The one or more processors may be configured to receive a configuration indicating at least one uplink reference signal resource. The one or more processors may be configured to transmit on a first port with a first cyclic shift using the at least one uplink reference signal resource. The one or more processors may be configured to transmit on a second port with a second cyclic shift using the at least one uplink reference signal resource, the second cyclic shift being selected based at least in part on the first cyclic shift.

[0010] Some aspects described herein relate to an apparatus for wireless communication at a network entity. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to send a configuration indicating at least one uplink reference signal resource. The one or more processors may be configured to receive a first uplink reference signal associated with a first port using the at least one uplink reference signal resource with a first cyclic shift. The one or more processors may be configured to receive a second uplink reference signal associated with a second port with a second cyclic shift, the second cyclic shift being selected based at least in part on the first cyclic shift.

[0011] Some aspects described herein relate to an apparatus for wireless communication at a UE. 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 configuration indicating at least one uplink reference signal resource. The one or more processors may be configured to use the at least one uplink reference signal resource to send multiple uplink reference signals, wherein a cyclic shift for a first port associated with the multiple uplink reference signals hops within a subset of a set of possible cyclic shifts.

[0012] Some aspects described herein relate to an apparatus for wireless communication at a network entity. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to send a configuration indicating at least one uplink reference signal resource. The one or more processors may be configured to receive multiple uplink reference signals using the at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the multiple uplink reference signals hops within a subset of a set of possible cyclic shifts.

[0013] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include receiving a configuration indicating at least one uplink reference signal resource. The method may include sending a plurality of uplink reference signals using the at least one uplink reference signal resource, wherein a first cyclic shift for the plurality of uplink reference signals is based at least in part on a time function measured in increments longer than one symbol.

[0014] Some aspects described herein relate to a method of wireless communication performed by a network entity. The method may include sending a configuration indicating at least one uplink reference signal resource. The method may include receiving a plurality of uplink reference signals using the at least one uplink reference signal resource, wherein a first cyclic shift for the plurality of uplink reference signals is based at least in part on a time function measured in increments longer than one symbol.

[0015] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include receiving a configuration indicating at least one uplink reference signal resource. The method may include transmitting on a first port with a first cyclic shift using the at least one uplink reference signal resource. The method may include transmitting on a second port with a second cyclic shift using the at least one uplink reference signal resource, the second cyclic shift being selected based at least in part on the first cyclic shift.

[0016] Some aspects described herein relate to a method of wireless communication performed by a network entity. The method may include sending a configuration indicating at least one uplink reference signal resource. The method may include using the at least one uplink reference signal resource to receive a first uplink reference signal associated with a first port having a first cyclic shift. The method may include using the at least one uplink reference signal resource to receive a second uplink reference signal associated with a second port having a second cyclic shift, the second cyclic shift being selected based at least in part on the first cyclic shift.

[0017] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include receiving a configuration indicating at least one uplink reference signal resource. The method may include sending a plurality of uplink reference signals using the at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the plurality of uplink reference signals hops within a subset of a set of possible cyclic shifts.

[0018] Some aspects described herein relate to a method of wireless communication performed by a network entity. The method may include sending a configuration indicating at least one uplink reference signal resource. The method may include receiving a plurality of uplink reference signals using the at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the plurality of uplink reference signals hops within a subset of a set of possible cyclic shifts.

[0019] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive a configuration indicating at least one uplink reference signal resource. The instruction set, when executed by one or more processors of the UE, may cause the UE to send multiple uplink reference signals using the at least one uplink reference signal resource, wherein a first cyclic shift for the multiple uplink reference signals is based at least in part on a time function measured in increments longer than one symbol.

[0020] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network entity. The instruction set, when executed by one or more processors of the network entity, may cause the network entity to send a configuration indicating at least one uplink reference signal resource. The instruction set, when executed by one or more processors of the network entity, may cause the network entity to receive a plurality of uplink reference signals using the at least one uplink reference signal resource, wherein a first cyclic shift for the plurality of uplink reference signals is based at least in part on a time function measured in increments longer than one symbol.

[0021] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive a configuration indicating at least one uplink reference signal resource. The instruction set, when executed by one or more processors of the UE, may cause the UE to transmit on a first port with a first cyclic shift using the at least one uplink reference signal resource. The instruction set, when executed by one or more processors of the UE, may cause the UE to transmit on a second port with a second cyclic shift using the at least one uplink reference signal resource, the second cyclic shift being selected based at least in part on the first cyclic shift.

[0022] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network entity. The instruction set, when executed by one or more processors of the network entity, may cause the network entity to send a configuration indicating at least one uplink reference signal resource. The instruction set, when executed by one or more processors of the network entity, may cause the network entity to use the at least one uplink reference signal resource to receive a first uplink reference signal associated with a first port with a first cyclic shift. The instruction set, when executed by one or more processors of the network entity, may cause the network entity to use the at least one uplink reference signal resource to receive a second uplink reference signal associated with a second port with a second cyclic shift, the second cyclic shift being selected based at least in part on the first cyclic shift.

[0023] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive a configuration indicating at least one uplink reference signal resource. The instruction set, when executed by one or more processors of the UE, may cause the UE to send multiple uplink reference signals using the at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the multiple uplink reference signals hops within a subset of a set of possible cyclic shifts.

[0024] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network entity. The instruction set, when executed by one or more processors of the network entity, may cause the network entity to send a configuration indicating at least one uplink reference signal resource. The instruction set, when executed by one or more processors of the network entity, may cause the network entity to receive a plurality of uplink reference signals using the at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the plurality of uplink reference signals hops within a subset of a set of possible cyclic shifts.

[0025] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a configuration indicating at least one uplink reference signal resource. The apparatus may include means for sending a plurality of uplink reference signals using the at least one uplink reference signal resource, wherein a first cyclic shift for the plurality of uplink reference signals is based at least in part on a time function measured in increments longer than one symbol.

[0026] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending a configuration indicating at least one uplink reference signal resource. The apparatus may include means for receiving a plurality of uplink reference signals using the at least one uplink reference signal resource, wherein a first cyclic shift for the plurality of uplink reference signals is based at least in part on a time function measured in increments longer than one symbol.

[0027] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a configuration indicating at least one uplink reference signal resource. The apparatus may include means for transmitting on a first port with a first cyclic shift using the at least one uplink reference signal resource. The apparatus may include means for transmitting on a second port with a second cyclic shift using the at least one uplink reference signal resource, the second cyclic shift being selected based at least in part on the first cyclic shift.

[0028] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending a configuration indicating at least one uplink reference signal resource. The apparatus may include means for receiving a first uplink reference signal associated with a first port having a first cyclic shift using the at least one uplink reference signal resource. The apparatus may include means for receiving a second uplink reference signal associated with a second port having a second cyclic shift using the at least one uplink reference signal resource, the second cyclic shift being selected based at least in part on the first cyclic shift.

[0029] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a configuration indicating at least one uplink reference signal resource. The apparatus may include means for sending a plurality of uplink reference signals using the at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the plurality of uplink reference signals hops within a subset of a set of possible cyclic shifts.

[0030] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending a configuration indicating at least one uplink reference signal resource. The apparatus may include means for receiving a plurality of uplink reference signals using the at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the plurality of uplink reference signals hops within a subset of a set of possible cyclic shifts.

[0031] Aspects collectively 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 herein with reference to the drawings and description and as illustrated in the drawings and description.

[0032] The features and technical advantages of examples according to the present disclosure have been outlined quite extensively above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of the limitations of the claims.

[0033] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers). The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements and / or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to be able to understand the above-mentioned features of the present disclosure in detail, a more specific description briefly summarized above may be obtained by reference to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings illustrate only certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0035] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0036] Figure 2 is a diagram illustrating an example of communication between a network node and a user equipment in a wireless network according to the present disclosure.

[0037] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.

[0038] Figure 4 is a diagram illustrating an example of a comb shift of a sounding reference signal (SRS) according to the present disclosure.

[0039] Figure 5 is a diagram illustrating an example of frequency hopping for SRS according to the present disclosure.

[0040] Figure 6 is a diagram illustrating an example associated with a time increment longer than one symbol for cyclic shift hopping according to the present disclosure.

[0041] Figure 7 is a diagram illustrating an example associated with configuring a time increment longer than one symbol for cyclic shift hopping according to the present disclosure.

[0042] Figure 8 is a diagram illustrating an example associated with cyclic shift hopping for multiple ports according to the present disclosure.

[0043] Fig. 9 is a diagram illustrating an example associated with cyclic shift hopping within a subset of a set of possible cyclic shifts according to the present disclosure.

[0044] Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 and Fig.15 is a diagram illustrating an example process associated with cyclic shift hopping according to the present disclosure.

[0045] Fig.16 and Fig.17 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0046] The 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 interpreted as being limited to any specific structure or function presented throughout the present disclosure. Instead, 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 should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the 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 a device or method that is practiced using other structures, functionality, or structure and functionality other than the various aspects of the disclosure set forth herein 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 claim.

[0047] 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, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0048] Although various aspects may be described herein using terms 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 RATs beyond 5G (e.g., 6G).

[0049] Figure 11 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, which means 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 decomposed network node (sometimes referred to as a decomposed base station), which means 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)).

[0050] In some examples, the network node 110 is or includes a network node that communicates with the UE 120 via a radio access link, such as an RU. In some examples, the network node 110 is or includes a network node that communicates with other network nodes 110 via a fronthaul link or a midhaul link, such as a DU. In some examples, the network node 110 is or includes a network node that communicates with other network nodes 110 via a midhaul link or communicates with the core network via a backhaul link, such as a CU. In some examples, the network node 110 (such as an aggregated 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. The 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, a RU, a CU, a mobility element of a network, a core network node, a network element, a 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 via various types of fronthaul, midhaul, and / or backhaul interfaces, such as direct physical connections, air interfaces, or virtual networks, using any suitable transport network.

[0051] In some examples, the 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 ​​the network node 110 and / or the network node subsystem serving the coverage area, depending on the context in which the term is used. The 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 a UE 120 with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by a UE 120 with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by a UE 120 associated with the femto cell (e.g., a UE 120 in a closed subscriber group (CSG)). A network node 110 for a macro cell may be referred to as a macro network node. A 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 1 In the example shown in , 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, a cell may not necessarily be stationary, and the geographic area of ​​a cell may move depending on the location of a mobile network node 110 (e.g., a mobile network node).

[0052] In some aspects, the term "base station" or "network node" may refer to an aggregated 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 plurality 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.

[0053] 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 is capable of relaying transmissions for other UEs 120. Figure 1 In the example shown in , a network node 110d (e.g., a relay network node) may communicate with a network node 110a (e.g., a macro network node) and a UE 120d to facilitate communication between the network node 110a and the UE 120d. 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.

[0054] 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).

[0055] 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 or wired backhaul communication link. In some aspects, the network controller 130 may be, or may include, a CU or a core network device.

[0056] UE 120 may be dispersed throughout the 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 smart phone), 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 a 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, an 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.

[0057] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, unmanned aerial vehicles, remote devices, sensors, meters, monitors, and / or location tags that may communicate with a network node, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. UE 120 may be included inside a housing that houses components of 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, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operably coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0058] In general, 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. RAT may be referred to as a radio technology, air interface, etc. 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.

[0059] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may 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 may 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 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network node 110.

[0060] The devices of the wireless network 100 may communicate using an electromagnetic spectrum that may be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency ranges designated FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). It should be understood that, although a portion of FR1 is greater than 6 GHz, in various documents and articles, FR1 is often (interchangeably) referred to as the "below 6 GHz" band. 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).

[0061] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz-24.25GHz). The bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, so the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6GHz-71GHz), FR4 (52.6GHz-114.25GHz) and FR5 (114.25GHz-300GHz). Each of these higher frequency bands falls within the EHF band.

[0062] Considering the above examples, unless otherwise specifically stated, it should be understood that if the term "below 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. In addition, 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 or 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.

[0063] In some aspects, UE 120 may include a communications manager 140. As described in more detail elsewhere herein, communications manager 140 may receive a configuration indicating at least one uplink reference signal resource, and may use the at least one uplink reference signal resource to send a plurality of uplink reference signals, wherein a first cyclic shift for the plurality of uplink reference signals is based at least in part on a time function measured in increments longer than one symbol. Additionally or alternatively, as described in more detail elsewhere herein, communications manager 140 may receive a configuration indicating at least one uplink reference signal resource, may use the at least one uplink reference signal resource to send at a first cyclic shift on a first port, and may use the at least one uplink reference signal resource to send at a second cyclic shift on a second port, the second cyclic shift being selected based at least in part on the first cyclic shift. Additionally or alternatively, as described in more detail elsewhere herein, the communication manager 140 may receive a configuration indicating at least one uplink reference signal resource, and may use the at least one uplink reference signal resource to send a plurality of uplink reference signals, wherein a cyclic shift for a first port associated with the plurality of uplink reference signals hops within a subset of a set of possible cyclic shifts. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0064] In some aspects, a network entity (e.g., network node 110) may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may send a configuration indicating at least one uplink reference signal resource, and may use the at least one uplink reference signal resource to receive a plurality of uplink reference signals, wherein a first cyclic shift for the plurality of uplink reference signals is based at least in part on a time function measured in increments longer than one symbol. Additionally or alternatively, as described in more detail elsewhere herein, the communication manager 150 may send a configuration indicating at least one uplink reference signal resource, may use the at least one uplink reference signal resource to receive a first uplink reference signal associated with a first port having a first cyclic shift, and may use the at least one uplink reference signal resource to receive a second uplink reference signal associated with a second port having a second cyclic shift, the second cyclic shift being selected based at least in part on the first cyclic shift. Additionally or alternatively, as described in more detail elsewhere herein, the communications manager 150 may send a configuration indicating at least one uplink reference signal resource, and may use the at least one uplink reference signal resource to receive a plurality of uplink reference signals, wherein a cyclic shift for a first port associated with the plurality of uplink reference signals hops within a subset of a set of possible cyclic shifts. Additionally or alternatively, the communications manager 150 may perform one or more other operations described herein.

[0065] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.

[0066] Figure 2 2 is a diagram illustrating an 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 to 234t, such as T antennas (T≥1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1). The network node 110 of example 200 includes one or more radio frequency components, such as an antenna 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 a radio frequency component that facilitates direct communication with the UE 120, such as one or more CUs or one or more DUs.

[0067] At the network node 110, the transmit processor 220 may receive data intended for the UE 120 (or a set of UEs 120) from the data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQI) received from the UE 120. The network node 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and may provide data symbols for the UE 120. The 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. The 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., pre-coding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where 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) (shown as modems 232a to 232t). For example, each output symbol stream may be provided to a modulator component (shown 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 up-convert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a to 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas) (shown as antennas 234a to 234t).

[0068] At the UE 120, a set of antennas 252 (shown as antennas 252a to 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 to 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 a 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 where 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 the 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 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, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0069] 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.

[0070] 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 sets of antenna elements, and / or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays may include one or more antenna elements (in a single housing or multiple housings), sets of coplanar antenna elements, sets of non-coplanar antenna elements, and / or may 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.

[0071] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). 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, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and sent 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 the functions described herein (eg, with reference to Figures 6 to 17 ) any aspects of any of the methods described herein.

[0072] At the network node 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component (shown as DEMOD) of the modem 232), detected by the MIMO detector 236 (where applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink communication and / or uplink communication. In some examples, the modem 232 of the network node 110 may include a modulator and a demodulator. In some examples, the network node 110 includes a transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform operations described herein (e.g., with reference to Figures 6 to 17 ) any aspects of any of the methods described herein.

[0073] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the network node 110 may perform one or more techniques associated with cyclic shift hopping, 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 of the Fig.10 The process of 1000 Fig.11 Process 1100, Fig.12 The process 1200 Fig.13 Process 1300, Fig.14 The process of 1400 Fig.15 1500 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, when executed by one or more processors of network node 110 and / or UE 120 (e.g., directly, or after compilation, conversion and / or interpretation), the one or more instructions may cause the one or more processors, UE 120 and / or network node 110 to perform or direct, for example, Fig.10 The process of 1000 Fig.11 Process 1100, Fig.12 The process 1200 Fig.13 Process 1300, Fig.14 The process of 1400 Fig.15 The process 1500 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, etc.

[0074] In some aspects, a UE (e.g., UE 120 and / or Fig.16The apparatus 1600 may include a component for receiving a configuration indicating at least one uplink reference signal resource; and / or a component for sending multiple uplink reference signals using at least one uplink reference signal resource, wherein a first cyclic shift for the multiple uplink reference signals is based at least in part on a time function measured in increments longer than one symbol. Additionally or alternatively, the UE may include a component for receiving a configuration indicating at least one uplink reference signal resource; a component for sending at a first cyclic shift on a first port using at least one uplink reference signal resource; and / or a component for sending at a second port using at least one uplink reference signal resource, the second cyclic shift being selected at least in part based on the first cyclic shift. Additionally or alternatively, the UE may include a component for receiving a configuration indicating at least one uplink reference signal resource; and / or a component for sending multiple uplink reference signals using at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the multiple uplink reference signals hops within a subset of a set of possible cyclic shifts. The means for the UE to perform the operations described herein may include, for example, one or more of the following: a communication manager 140, an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, or a memory 282.

[0075] In some aspects, a network entity (e.g., network node 110, RU 340, DU 330, CU 310, and / or Fig.17The apparatus 1700 may include a component for sending a configuration indicating at least one uplink reference signal resource; and / or a component for receiving multiple uplink reference signals using at least one uplink reference signal resource, wherein a first cyclic shift for the multiple uplink reference signals is based at least in part on a time function measured in increments longer than one symbol. Additionally or alternatively, the network entity may include a component for sending a configuration indicating at least one uplink reference signal resource; a component for receiving a first uplink reference signal associated with a first port with a first cyclic shift using at least one uplink reference signal resource; and / or a component for receiving a second uplink reference signal associated with a second port with a second cyclic shift using at least one uplink reference signal resource, the second cyclic shift being selected based at least in part on the first cyclic shift. Additionally or alternatively, the network entity may include a component for sending a configuration indicating at least one uplink reference signal resource; and / or a component for receiving multiple uplink reference signals using at least one uplink reference signal resource, wherein the cyclic shift for the first port associated with the multiple uplink reference signals hops within a subset of the set of possible cyclic shifts. In some aspects, the components for the network entity to perform the operations described herein may include, for example, one or more of the following: communication manager 150, transmit processor 220, TX MIMO processor 230, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller / processor 240, memory 242, or scheduler 246.

[0076] In some aspects, a single processor may perform all of the functions described as being performed by the one or more processors. In some aspects, the one or more processors may collectively perform a set of functions. For example, a first set of processors in the one or more processors (one or more processors) may perform a first function described as being performed by the one or more processors, and a second set of processors in the one or more processors (one or more processors) may perform a second function described as being performed by the one or more processors. The first set of processors and the second set of processors may be the same set of processors or may be different sets of processors. References to "one or more processors" should be understood to refer to the combination Figure 2 Any one or more of the processors described. References to "one or more memories" should be understood to refer to any one or more memories of the corresponding device, such as in conjunction with Figure 2 For example, functions described as being performed by one or more memories may be performed by the same subset of the one or more memories or by a different subset of the one or more memories.

[0077] Although Figure 2 The blocks in the 2000 and 2010 are illustrated as distinct components, but the functionality described above for these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described for 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.

[0078] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.

[0079] The deployment of a communication system (such as a 5G NR system) can be arranged with various components or components in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station or network equipment can be implemented in an aggregated or 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 functionality can be implemented as an aggregated base station (also referred to as an independent base station or a monolithic base station) or a decomposed base station. "Network entity" or "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).

[0080] An aggregated base station (e.g., an aggregated 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, a 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 distributed across one or more other network nodes. A DU may be implemented to communicate with one or more RUs. Each of a CU, a DU, and a RU may also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), and the like.

[0081] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a decomposed 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 the scaling of a communication system by separating base station functionality into one or more units that can be deployed separately. A decomposed 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. Individual units of a decomposed base station may be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0082] Figure 3 3 is a diagram illustrating an example disaggregated base station architecture 300 according to the present disclosure. The disaggregated base station architecture 300 may include a CU 310 that may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more disaggregated control units, such as a near-RT RIC 325 via an E2 link, or a non-RT RIC 315 associated with a service management and orchestration (SMO) framework 305, or both. The CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via an F1 interface. Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via respective radio frequency (RF) access links. In some implementations, a UE 120 may be served simultaneously by multiple RUs 340.

[0083] Each of the units (including CU 310, DU 330, RU 340) and the near-RT RIC 325, non-RT RIC 315, and SMO framework 305 may include or be coupled to one or more interfaces, the one or more interfaces being configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to one or more communication interfaces of the corresponding unit may be configured to communicate with one or more of the other units via a transmission medium. In some examples, each of the units may include a wired interface and a wireless interface, the wired interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, the wireless interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, or both.

[0084] 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, etc. 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 functionality (e.g., central unit-user plane (CU-UP) functionality), control plane functionality (e.g., central unit-control plane (CU-CP) functionality), or a combination thereof. In some specific 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.

[0085] 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 high physical (PHY) layers, at least in part, according to a functional split (such as a functional split defined by 3GPP). In some aspects, the one or more high PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc. In some aspects, the DU 330 may further host one or more low PHY layers, such as one or more modules for fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming or physical random access channel (PRACH) extraction and filtering, etc. Each layer (which may also be referred to as a module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.

[0086] Each RU 340 may implement lower layer functionality. 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 lower 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 control and user plane communications with 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).

[0087] The SMO framework 305 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 305 may be configured to interact with a cloud computing platform (such as an 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 an O2 interface). Such virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 315, and near-RTRIC 325. In some specific implementations, the SMO framework 305 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 311) via the O1 interface. Additionally, in some 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.

[0088] The non-RT RIC 315 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 325. The non-RT RIC 315 may be coupled to or communicate with the near-RT RIC 325 (such as via an A1 interface). The near-RT RIC 325 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (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.

[0089] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 325, the non-RT RIC 315 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 325 and may be received from a non-network data source or from a network function at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or the near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 305 (such as via reconfiguration of the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).

[0090] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.

[0091] Figure 4 4 is a diagram illustrating an example 400 of comb offsets for a sounding reference signal (SRS) according to the present disclosure. In example 400, a UE (e.g., UE 120) may encode a base sequence for an SRS across symbols (e.g., OFDM symbols and / or other RF symbols in example 400) and subcarrier frequencies based on a configuration from a network (e.g., from network node 110). As used herein, a "subcarrier" may refer to a frequency based at least in part on a "carrier" frequency. The base sequence may be composed of Indicates that and represents a sequence group identification (ID), and v∈{0,1} and represents a sequence ID. In some cases, each sequence group may include two sequences (e.g., for a base sequence of length longer than 72). In some cases, each sequence group may include only one sequence, such that v=0 (e.g., for a base sequence of length 72 and shorter).

[0092] like Figure 4 As shown, the network may indicate the comb spacing (eg, represented by K) for use by UE 120. TC denoted by ). The comb spacing may determine how the SRS is distributed across resource elements (REs). As used herein, a "resource element" or "RE" may refer to a resource that includes a single symbol and a single subcarrier. Typically, the UE 120 encodes a single number of base sequences into a single RE. Example 400 shows an example SRS with a comb spacing of 2 or 4. Other comb spacings, such as 8, may also be used.

[0093] like Figure 4 As further shown, the network may indicate a comb offset for use by UE 120 (e.g., by denoted by ). The comb offset may determine which subcarrier (e.g., which subcarrier index) includes the first portion of the SRS. Example 400 shows an example SRS with a comb offset of 0, 1, or 2. Other comb offsets (e.g., from 0 to K) may also be used. TC -1).

[0094] As indicated above, Figure 4 are provided as examples. Other examples can be found in Figure 4 The examples described are different.

[0095] Figure 5 5 is a diagram illustrating example 500 of frequency hopping for SRS according to the present disclosure. Similar to example 400, example 500 is associated with SRS encoding within a time slot. As used herein, a "time slot" may refer to a portion of a subframe, which in turn may be a portion of a radio frame within an LTE, 5G, or another wireless communication structure. In some aspects, a time slot may include one or more symbols (e.g., 14 symbols in examples 400 and 500). In addition, a "symbol" may refer to an OFDM symbol or another similar symbol within a time slot.

[0096] In example 500, a UE (e.g., UE 120) may encode an SRS across a sounding bandwidth (e.g., 48 physical resource blocks (PRBs) in example 500) based on a configuration from a network (e.g., from network node 110). As used herein, a "physical resource block" or "PRB" may refer to one or more subcarriers (e.g., each subcarrier may include one or more frequencies), which may be contiguous in the frequency domain. Thus, a PRB may include multiple REs, where each RE corresponds to a single subcarrier, such as in conjunction with Figure 4 As described.

[0097] The network may indicate the number of symbols (e.g., represented by N) for use by UE 120. Additionally, the network may indicate the amount of repetitions (e.g., represented by R) for use by UE 120. In one example, configuration 510 has N=2 and R=1, such that there are two hops from SRS sequence 511a in symbol 12 to SRS sequence 511b in symbol 13. In another example, configuration 520 has N=4 and R=1, such that there are four hops from SRS sequence 521a in symbol 10 to SRS sequence 521b in symbol 11, to SRS sequence 521c in symbol 12, to SRS sequence 521d in symbol 13. In another example, configuration 530 has N=4 and R=2, such that there are two hops from SRS repetition 531a across symbols 10 and 11 to SRS repetition 531b across symbols 12 and 13. The number of hops may be determined by N / R. Other numbers of symbols (e.g., 1, 8, 10, 12, and 14, etc.) and / or other numbers of repetitions (e.g., 3, 4, 5, 6, 7, 8, 10, 12, and 14, etc.) may be used.

[0098] Example 500 is shown for aperiodic SRS. Thus, the network instructs UE 120 to send SRS once. Other examples may use periodic SRS (e.g., the network instructs UE 120 to always send SRS periodically) or semi-persistent SRS (e.g., once the network sends an activation message and until the network sends a deactivation message, the network instructs UE 120 to send SRS periodically). For periodic SRS and semi-persistent SRS configurations, frequency hopping may be intra-slot (e.g., as Figure 5 For inter-slot frequency hopping, the hopping period may be longer than the periodicity of the SRS.

[0099] When the network configures the UE to transmit SRS using multiple ports (also referred to as "antenna ports"), the network may use various techniques to reduce interference. For example, the network may separate the SRS resources (or SRS resource sets) corresponding to the ports in frequency and / or time. As used herein, a "port" may be defined so that the channel on which a symbol on the port is transmitted may be inferred from the channel on which another symbol on the same port is transmitted. Additionally or alternatively, the network may configure the UE for sequence and / or group hopping so that different base sequences are used across SRS transmissions.

[0100] When the network configures multiple UEs to send SRS, the network may additionally (or alternatively) configure the UEs for cyclic shift hopping. The cyclic shift for SRS may be determined by Indicates that And based on and represents the maximum number of cyclic shifts, where Indicated by the network, p i Indicates the antenna port used, Indicates the total number of antenna ports used for SRS transmission. Therefore, the network can configure different UEs To reduce interference or to instruct the UE to act according to the determination Circular shift of a function of the sum symbol index.

[0101] In some cases, the network may serve a large number of UEs. Additionally or alternatively, the UE may transmit the SRS at a high transmit power. For example, in a coherent joint transmission (CJT) configuration, the UE transmits the SRS for reception by multiple TRPs. As a result, interference between UEs increases, which wastes power and processing resources at the UE and at the network because retransmissions are more likely.

[0102] Some techniques and apparatus described herein enable a network (e.g., via network node 110) to configure a UE (e.g., UE 120) to perform cyclic shift hopping as a function of time in increments longer than a symbol. By configuring a longer period for cyclic shift hopping, the network can monitor the repetitions of an uplink reference signal (e.g., SRS) to improve the chance of receiving the uplink reference signal because all repetitions are less likely to interfere than a single transmission. Therefore, interference is reduced, which saves power and processing resources at UE 120 and at the network because retransmissions are less likely.

[0103] Additionally or alternatively, some techniques and apparatus described herein enable the network to configure the UE 120 to perform cyclic shift hopping for multiple ports. By configuring cyclic shift hopping for multiple ports, the network can monitor uplink reference signals (e.g., SRS) across more than one port to increase the chance of receiving the uplink reference signals because there is less likelihood of interference from all ports than from a single port. Therefore, interference is reduced, which saves power and processing resources at the UE 120 and at the network because retransmissions are less likely.

[0104] As indicated above, Figure 5 are provided as examples. Other examples can be found in Figure 5 The examples described are different.

[0105] Figure 6 6 is a diagram illustrating an example 600 associated with a time increment longer than one symbol for cyclic shift hopping according to the present disclosure. Figure 6 As shown in , example 600 shows an uplink reference signal (e.g., SRS) sent by a UE (e.g., UE 120) according to time and frequency. In example 600, N=8 and R=2; however, other examples may use a different number of symbols (e.g., 1, 2, 4, 10, 12, and 14, etc.) and / or a different number of repetitions (e.g., 3, 4, 5, 6, 7, 8, 10, 12, and 14, etc.). Additionally, in example 600, UE 120 is configured for a combination of intra-slot hopping and inter-slot hopping. Other examples may include only intra-slot hopping or only inter-slot hopping.

[0106] In example 600, the network (e.g., via network node 110) may configure UE 120 (e.g., as in conjunction with Figure 7 Thus, UE 120 may determine the cyclic shift for the SRS (e.g., represented by f(t)) based at least in part on the time function (e.g., represented by f(t)). For example, a time function may include a function that is a function of time (e.g., c init ) is measured to initialize the pseudo-random sequence (e.g., represented by c(i)). In one example, the cyclic shift may be determined according to the following example equation:

[0107]

[0108] Where f(t) represents the time function used to initialize the pseudo-random sequence represented by c. Equivalently, the example equation can be written as:

[0109]

[0110] in

[0111] The time function may be measured in increments longer than one symbol. For example, the time function may be measured in frequency hopping (e.g., by Figure 6 The jump 601 in FIG. 6 is shown as an increment. For example, in represents the time slot index of the time slot including the frequency hopping, represents the number of symbols per time slot (e.g., 14 symbols per time slot in example 600), l 0 represents the first symbol of the resource used for the uplink reference signal in the time slot, and l ′ represents the number of symbols hopped within the resource used for the uplink reference signal. Thus, the cyclic shifts of the repetitions in example 600 are the same (for the same port). Similarly, the time function can be based on the reference signal (RS) resource (e.g., Figure 6 Therefore, the cyclic shifts of uplink reference signals used in the same time slot and associated with the same resources are the same (for the same port).

[0112] In another example, the time function can be expressed in time slots (e.g., by Figure 6 For example, or in = y denotes the time slot index. Therefore, the cyclic shift within each time slot in example 600 is the same (for the same port).

[0113] In another example, the time function may be based on a period of resources for uplink reference symbols (eg, Figure 6 For example, or in represents the slot index of the first slot in the cycle, and l 0 +l ′ Denotes the first symbol of the cycle. Therefore, the cyclic shift within each cycle in example 600 is the same (for the same port).

[0114] In another example, the time function can be in a frequency hopping period (e.g., Figure 6 For example, or in represents the slot index of the first slot in the frequency hopping cycle, and l 0 +l ′= represents the first symbol of the frequency hopping cycle. Therefore, the cyclic shift within each frequency hopping cycle in example 600 is the same (for the same port).

[0115] In some aspects, a first cyclic shift is assigned to a first port, and UE 120 may restrict the first cyclic shift to hopping within a subset of a set of possible cyclic shifts. When , the network may indicate to UE 120 only the first four cyclic shifts (e.g., corresponding to ) may be available for the first port. Other examples may include different maximum amounts of cyclic shifts and / or different amounts of cyclic shifts available for the first port.

[0116] As described above, UE 120 may use a time function to determine a first cyclic shift assigned to a first port. In addition, UE 120 may determine one or more additional cyclic shifts assigned to one or more additional ports based on the first cyclic shift. In some aspects, UE 120 may evenly distribute the cyclic shifts among the remaining ports. In one example, the additional cyclic shifts may be determined according to the following example equations:

[0117]

[0118] where α 0,t represents the first cyclic shift, and i represents the index of the additional port.

[0119] By using the combination Figure 6 In the described technique, the network (e.g., via the network node 110) configures the UE 120 to perform cyclic shift hopping as a function of time in increments longer than one symbol. By configuring a longer period for the cyclic shift hopping, the network can monitor the repetitions of the uplink reference signal to improve the chance of receiving the uplink reference signal because all the repetitions are less likely to interfere than a single transmission. Therefore, interference is reduced, which saves power and processing resources at the UE 120 and at the network because retransmissions are less likely.

[0120] As indicated above, Figure 6 are provided as examples. Other examples can be found in Figure 6 The examples described are different.

[0121] Figure 7 is a diagram illustrating an example 700 associated with configuring a time increment longer than one symbol for cyclic shift hopping according to the present disclosure. Figure 7 As shown, one or more network nodes 110 (eg, RU 340 and / or a device controlling RU 340 such as DU 330 and / or CU 310) and UE 120 may communicate with each other (eg, over a wireless network such as Figure 1on the wireless network 100).

[0122] As indicated by reference numeral 705, the network node 110 may send (e.g., directly or via the RU 340) a configuration of one or more SRSs (or another type of uplink reference signal), and the UE 120 may receive the configuration. The configuration may indicate a base sequence to be used, a comb spacing, and a comb offset, such as in conjunction with Figure 4 In some aspects, the configuration may indicate that UE 120 should perform frequency hopping (e.g., as combined with Figure 5 described above).

[0123] Additionally, the configuration may indicate that UE 120 should perform cyclic shift hopping, such as in conjunction with Figure 6 The configuration may indicate a time increment used in hopping between cyclic shifts, which may be longer than one symbol.

[0124] As shown at reference numeral 710, UE 120 may determine one or more cyclic shifts for SRS. Figure 6 As described, UE 120 may determine a first cyclic shift for a first port (based on a time function), and determine additional cyclic shifts (if any) for additional ports based on the first cyclic shift.

[0125] As indicated by reference numeral 715, UE 120 may transmit an SRS, and network node 110 may receive (e.g., directly or via RU 340) the SRS. For example, as indicated by reference numeral 720, network node 110 may measure the SRS in order to schedule uplink transmissions from UE 120 and / or downlink transmissions to UE 120 based on the measurement of the SRS.

[0126] By using the combination Figure 7 In the described technique, the network node 110 configures the UE 120 to perform cyclic shift hopping as a function of time in increments longer than one symbol. By configuring a longer period for the cyclic shift hopping, the network node 110 can monitor the repetitions of the SRS to increase the chance of receiving the SRS because all repetitions are less likely to interfere than a single transmission. Therefore, interference is reduced, which saves power and processing resources at the UE 120 and at the network node 110 because retransmissions are less likely.

[0127] As indicated above, Figure 7 are provided as examples. Other examples can be found in Figure 7 The examples described are different.

[0128] Figure 8 8 is a diagram illustrating an example 800 associated with cyclic shift hopping for multiple ports according to the present disclosure. Figure 8 As shown, one or more network nodes 110 (eg, RU 340 and / or a device controlling RU 340 such as DU 330 and / or CU 310) and UE 120 may communicate with each other (eg, over a wireless network such as Figure 1 wireless network 100).

[0129] As indicated by reference numeral 805, the network node 110 may send (e.g., directly or via the RU 340) a configuration of an SRS (or another type of uplink reference signal), and the UE 120 may receive the configuration. The configuration may indicate a base sequence, comb spacing, and comb offset to be used, such as in conjunction with Figure 4 In some aspects, the configuration may indicate that UE 120 should perform frequency hopping (e.g., as in conjunction with Figure 5 described above).

[0130] Additionally, the configuration may indicate that UE 120 should perform cyclic shift hopping.In some aspects, the configuration may indicate a hopping formula to use that accepts a measurement of time as input and outputs a cyclic shift to use.

[0131] As shown by reference numeral 810, UE 120 may determine cyclic shifts to use across multiple ports. For example, UE 120 may determine at least a first cyclic shift to use on a first port and a second cyclic shift to use on a second port.

[0132] In some aspects, the UE 120 may determine the first cyclic shift using a first output from the hopping formula, and may determine the second cyclic shift using a second output from the hopping formula. To prevent collisions, when the first output and the second output are the same, the UE 120 may re-determine the second cyclic shift using an offset from the first cyclic shift. Thus, when the hopping formula generates the same output for both the first port and the second port, the UE 120 determines the second cyclic shift based at least in part on the first cyclic shift. For example, the UE 120 may determine the second cyclic shift as in denotes a cyclic shift for the first port, and Δ denotes an offset.

[0133] The offset may be indicated by the network node 110 (e.g., in the configuration described above or in a separate message). Additionally or alternatively, the UE 120 may store the offset in a memory (and / or be otherwise programmed with the offset) (e.g., in accordance with a 3GPP specification and / or another standard). In a combined example, the network node 110 may indicate the offset to be used from among a plurality of possible offsets with which the UE 120 is programmed.

[0134] Alternatively, UE 120 may determine the first cyclic shift using the first output from the hopping formula, and may determine the second cyclic shift using the offset from the first cyclic shift. Thus, UE 120 may always determine the second cyclic shift based at least in part on the first cyclic shift. For example, UE 120 may determine the second cyclic shift as in denotes a cyclic shift for the first port, and Δ denotes an offset.

[0135] In some aspects, UE 120 may restrict the first cyclic shift to hopping within a first subset of the set of possible cyclic shifts, and restrict the second cyclic shift to hopping within a second subset of the set of possible cyclic shifts. When , network node 110 may indicate to UE 120 that only the first four cyclic shifts (eg, corresponding to ) can be used for the first port and only the second four cyclic shifts (e.g., corresponding to ) may be used for the second port. Other examples may include different maximum amounts of cyclic shift and / or different amounts of cyclic shift that may be used for the ports.

[0136] Although described above in conjunction with two ports, other examples may include additional ports. In addition, although described above in conjunction with individual ports, a first port may be associated with a first group of ports, and a second port may be associated with a second group of ports. Thus, the UE 120 may assign one or more additional cyclic shifts to one or more additional ports in the first group of ports based on the first cyclic shift. In some aspects, the UE 120 may evenly distribute the cyclic shifts among the remaining ports of the first group. In one example, the additional cyclic shift may be determined according to the following example equation:

[0137]

[0138] in denotes a cyclic shift for a first port of the first group, and i denotes an index for an additional port in the first group.

[0139] Similarly, UE 120 may assign one or more additional cyclic shifts to one or more additional ports in the second group of ports based on the second cyclic shift. In some aspects, UE 120 may evenly distribute the cyclic shifts among the remaining ports of the second group. In one example, the additional cyclic shift may be determined according to the following example equation:

[0140]

[0141] in denotes the cyclic shift for the second port (which, in this example, is the first port of the second group), and i denotes the index of the additional port in the second group.

[0142] Alternatively, UE 120 may use assignment sets to assign cyclic shifts across ports. For example, each assignment set may indicate a cyclic shift index for all ports (e.g., for 4 ports, the assignment set may be {0, 1, 6, 7}, {2, 3, 8, 9}, or {4, 5, 10, 11}, etc.). The assignment set may be indicated by network node 110 (e.g., in the configuration described above or in a separate message) and / or stored in a memory of UE 120 (and / or otherwise programmed into the UE) (e.g., according to a 3GPP specification and / or another standard). Each assignment set may correspond to a unique assignment index.

[0143] Therefore, instead of using the output from the hopping formula to determine the cyclic shift to use, the UE 120 may use the output from the hopping formula to determine the assignment index to use. For example, the UE 120 may use the following example equation:

[0144]

[0145] Wherein h(t) represents the assignment index to be used, and H represents the total number of assignment sets. In one example, if the assignment sets {0, 1, 6, 7}, {2, 3, 8, 9}, and {4, 5, 10, 11} are associated with assignment indices 0, 1, and 2, respectively, then when h(t)=1, UE 120 may assign cyclic shifts corresponding to indices 2, 3, 8, and 9 to ports corresponding to indices 0, 1, 2, and 3, respectively.

[0146] In some aspects, UE 120 may restrict the assignment index to hopping within a subset of the set of possible assignment indexes. For example, when H=8, network node 110 may indicate to UE 120 that only the first four assignment sets (e.g., corresponding to h=0, 1, 2, or 3) may be used. Other examples may include different maximum numbers of assignment sets and / or different numbers of assignment indexes that may be used by UE 120.

[0147] As indicated by reference numeral 815-1, UE 120 may transmit an SRS associated with a first port, and network node 110 may receive (e.g., directly or via RU 340) the SRS. In addition, as indicated by reference numeral 815-n, UE 120 may transmit an SRS associated with an additional port (e.g., a second port) through all n ports configured to transmit the SRS, and network node 110 may receive (e.g., directly or via RU 340). As indicated by reference numeral 820, network node 110 may measure the SRS in order to schedule uplink transmissions from UE 120 and / or downlink transmissions to UE 120 based on the measurement of the SRS.

[0148] By using such as combining Figure 8 With the described techniques, the network node 110 may configure the UE 120 to perform cyclic shift hopping for multiple ports. By configuring cyclic shift hopping for multiple ports, the network node 110 may monitor the SRS across more than one port to increase the chance of receiving the SRS because interference is less likely for all ports than for a single port. Therefore, interference is reduced, which saves power and processing resources at the UE 120 and at the network node 110 because retransmissions are less likely.

[0149] Example 800 may be combined with examples 700 and 600. For example, the hopping formula of example 800 may be a function of time of examples 700 and 600 measured in increments longer than one symbol.

[0150] As indicated above, Figure 8 are provided as examples. Other examples can be found in Figure 8 The examples described are different.

[0151] Fig. 9 is a diagram illustrating an example 900 associated with cyclic shift hopping within a subset of a set of possible cyclic shifts according to the present disclosure. Fig. 9 As shown, one or more network nodes 110 (eg, RU 340 and / or a device controlling RU 340 such as DU 330 and / or CU 310) and UE 120 may communicate with each other (eg, over a wireless network such as Figure 1 on the wireless network 100).

[0152] As indicated by reference numeral 905, the network node 110 may send (e.g., directly or via the RU 340) a configuration of one or more SRSs (or another type of uplink reference signal), and the UE 120 may receive the configuration. The configuration may indicate a base sequence to be used, a comb spacing, and a comb offset, such as in conjunction with Figure 4In some aspects, the configuration may indicate that UE 120 should perform frequency hopping (e.g., as combined with Figure 5 described above).

[0153] Additionally, the configuration may indicate that the UE 120 should perform cyclic shift hopping. In some aspects, the configuration may also indicate that the UE 120 should only hop within a subset of the set of possible cyclic shifts. For example, the network node 110 may indicate different subsets to different UEs in order to reduce interference.

[0154] As shown by reference numeral 910, UE 120 may determine one or more cyclic shifts for SRS. UE 120 may determine a first cyclic shift for a first port from the subset, and determine additional cyclic shifts (if any) for additional ports based on the first cyclic shift. For example, when the set of cyclic shifts includes 12 cyclic shifts, network node 110 may indicate to UE 120 that only the first four cyclic shifts are included in the subset, so that UE 120 determines the first cyclic shift from the subset including cyclic shifts associated with indices 0, 1, 2, and 3. Other examples may include different amounts of cyclic shifts included in the set and / or different amounts of cyclic shifts included in the subset.

[0155] As indicated by reference numeral 915, UE 120 may transmit an SRS, and network node 110 may receive (e.g., directly or via RU 340) the SRS. For example, as indicated by reference numeral 920, network node 110 may measure the SRS in order to schedule uplink transmissions from UE 120 and / or downlink transmissions to UE 120 based on the measurement of the SRS.

[0156] As indicated above, Fig. 9 are provided as examples. Other examples can be found in Fig. 9 The examples described are different.

[0157] Fig.10 1 is a diagram illustrating an example process 1000 performed, for example, by a UE according to the present disclosure. Example process 1000 is a diagram in which a UE (e.g., UE 120 and / or Fig.16 An example of a device 1600) performing operations associated with cyclic shift hopping.

[0158] like Fig.10 As shown, in some aspects, process 1000 may include receiving a configuration indicating at least one uplink reference signal resource (block 1010). For example, a UE (e.g., using Fig.16 The depicted communications manager 140 and / or receiving component 1602) may receive a configuration indicating at least one uplink reference signal resource, as described herein.

[0159] like Fig.10 As further shown in FIG. 1 , in some aspects, process 1000 may include sending a plurality of uplink reference signals using at least one uplink reference signal resource, wherein a first cyclic shift for the plurality of uplink reference signals is based at least in part on a time function measured in increments longer than one symbol (block 1020). For example, a UE (e.g., using Fig.16 The depicted communication manager 140 and / or transmitting component 1604) may use at least one uplink reference signal resource to send multiple uplink reference signals, wherein a first cyclic shift for the multiple uplink reference signals is based at least in part on a time function measured in increments longer than one symbol, as described herein.

[0160] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.

[0161] In a first aspect, the plurality of uplink reference signals comprises an SRS.

[0162] In a second aspect, alone or in combination with the first aspect, the time function comprises a pseudo-random sequence initialized by a time measurement.

[0163] In a third aspect, either alone or in combination with one or more of the first and second aspects, a first cyclic shift is assigned to a first port associated with at least one uplink reference signal resource, and one or more additional cyclic shifts are assigned to one or more additional ports based on the first cyclic shift.

[0164] In a fourth aspect, alone or in combination with one or more of the first to third aspects, a first cyclic shift is assigned to the first port and hops within a subset of a set of possible cyclic shifts.

[0165] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the time function is measured in frequency hopping increments.

[0166] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the time function is measured in increments of time slots.

[0167] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the time function is measured with a period for at least one uplink reference signal resource.

[0168] In an eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the time function is measured in increments of a frequency hopping period.

[0169] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, process 1000 includes using a first output from a time function to determine (e.g., using Fig.16 The depicted communication manager 140 and / or determining component 1608) uses a first cyclic shift for a first port, and uses a second output from the time function to determine (e.g., using the communication manager 140 and / or determining component 1608) a second cyclic shift for a second port, wherein when the first output and the second output are the same, the second cyclic shift is re-determined using an offset from the first cyclic shift.

[0170] In a tenth aspect, either alone or in combination with one or more of aspects 1 to 9, process 1000 includes determining (e.g., using communication manager 140 and / or determination component 1608) a first cyclic shift for a first port using an output from a time function, and determining (e.g., using communication manager 140 and / or determination component 1608) a second cyclic shift for a second port using an offset from the first cyclic shift.

[0171] In an eleventh aspect, either alone or in combination with one or more of aspects one to ten, process 1000 includes determining (e.g., using the communication manager 140 and / or determination component 1608) an assignment index using an output from a time function, and determining (e.g., using the communication manager 140 and / or determination component 1608) a first cyclic shift and one or more additional cyclic shifts using an assignment set corresponding to the assignment index.

[0172] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the assignment index jumps within a subset of the set of possible assignment indices.

[0173] although Fig.10 An example block diagram of process 1000 is shown, but in some aspects, process 1000 may include Fig.10 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 1000 may be performed in parallel.

[0174] Fig.11 1 is a diagram illustrating an example process 1100 performed, for example, by a network entity according to the present disclosure. The example process 1100 is a diagram in which a network entity (e.g., a network node 110 and / or Fig.17 An example of a device 1700) performing operations associated with cyclic shift hopping.

[0175] like Fig.11As further shown, in some aspects, process 1100 may include sending a configuration indicating at least one uplink reference signal resource (block 1110). For example, a network entity (e.g., using Fig.17 The depicted communications manager 150 and / or transmitting component 1704) may transmit a configuration indicating at least one uplink reference signal resource, as described herein.

[0176] like Fig.11 As further shown in FIG. 1 , in some aspects, process 1100 may include receiving a plurality of uplink reference signals using at least one uplink reference signal resource, wherein a first cyclic shift for the plurality of uplink reference signals is based at least in part on a time function measured in increments longer than one symbol (block 1120). For example, a network entity (e.g., using Fig.17 The depicted communication manager 150 and / or receiving component 1702) may use at least one uplink reference signal resource to receive multiple uplink reference signals, wherein a first cyclic shift for the multiple uplink reference signals is based at least in part on a time function measured in increments longer than one symbol, as described herein.

[0177] 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.

[0178] In a first aspect, the plurality of uplink reference signals comprises an SRS.

[0179] In a second aspect, alone or in combination with the first aspect, the time function comprises a pseudo-random sequence initialized by a time measurement.

[0180] In a third aspect, alone or in combination with one or more of the first and second aspects, a first cyclic shift is associated with a first port, and one or more additional cyclic shifts are associated with one or more additional ports and are based on the first cyclic shift.

[0181] In a fourth aspect, alone or in combination with one or more of the first to third aspects, a first cyclic shift is associated with a first port and hops within a subset of a set of possible cyclic shifts.

[0182] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the time function is measured in frequency hopping increments.

[0183] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the time function is measured in increments of time slots.

[0184] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the time function is measured with a period for at least one uplink reference signal resource.

[0185] In an eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the time function is measured in increments of a frequency hopping period.

[0186] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, process 1100 includes using a first output from a time function to determine (e.g., using Fig.17 The depicted communication manager 150 and / or determining component 1708) determines a first cyclic shift associated with a first port, and determines (e.g., using the communication manager 150 and / or determining component 1708) a second cyclic shift associated with a second port using a second output from a time function, wherein when the first output and the second output are the same, the second cyclic shift is re-determined using an offset from the first cyclic shift.

[0187] In a tenth aspect, either alone or in combination with one or more of aspects 1 to 9, process 1100 includes determining (e.g., using communication manager 150 and / or determination component 1708) a first cyclic shift associated with a first port using an output from a time function, and determining (e.g., using communication manager 150 and / or determination component 1708) a second cyclic shift associated with a second port using an offset from the first cyclic shift.

[0188] In an eleventh aspect, either alone or in combination with one or more of aspects one to ten, process 1100 includes determining (e.g., using the communication manager 150 and / or determination component 1708) an assignment index using an output from a time function, and determining (e.g., using the communication manager 150 and / or determination component 1708) a first cyclic shift and one or more additional cyclic shifts using an assignment set corresponding to the assignment index.

[0189] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the assignment index jumps within a subset of the set of possible assignment indices.

[0190] although Fig.11 An example block diagram of process 1100 is shown, but in some aspects, process 1100 may include Fig.11 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 1100 may be performed in parallel.

[0191] Fig.12 1 is a diagram illustrating an example process 1200 performed, for example, by a UE according to the present disclosure. The example process 1200 is a diagram in which a UE (e.g., UE 120 and / or Fig.16 An example of a device 1600) performing operations associated with cyclic shift hopping.

[0192] like Fig.12 As shown, in some aspects, process 1200 may include receiving a configuration indicating at least one uplink reference signal resource (block 1210). For example, a UE (e.g., using Fig.16 The depicted communications manager 140 and / or receiving component 1602) may receive a configuration indicating at least one uplink reference signal resource, as described herein.

[0193] like Fig.12 As further shown in FIG. 1 , in some aspects, process 1200 may include transmitting on a first port with a first cyclic shift using at least one uplink reference signal resource (block 1220). For example, a UE (e.g., using Fig.16 The depicted communications manager 140 and / or transmitting component 1604) may transmit on a first port with a first cyclic shift using at least one uplink reference signal resource, as described herein.

[0194] like Fig.12 As further shown in , in some aspects, process 1200 may include transmitting on a second port using at least one uplink reference signal resource with a second cyclic shift, the second cyclic shift selected based at least in part on the first cyclic shift (block 1230). For example, the UE (e.g., using communications manager 140 and / or transmitting component 1604) may transmit on a second port using at least one uplink reference signal resource with a second cyclic shift, the second cyclic shift selected based at least in part on the first cyclic shift, as described herein.

[0195] Process 1200 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.

[0196] In a first aspect, at least one uplink reference signal resource comprises a sounding reference signal resource.

[0197] In a second aspect, alone or in combination with the first aspect, process 1200 includes using a first output from a jump formula to determine (e.g., using Fig.16The depicted communication manager 140 and / or determining component 1608) determines a first cyclic shift, and determines (e.g., using the communication manager 140 and / or determining component 1608) a second cyclic shift using a second output from the hopping formula, wherein when the first output and the second output are the same, the second cyclic shift is re-determined using an offset from the first cyclic shift.

[0198] In a third aspect, alone or in combination with one or more of the first and second aspects, process 1200 also includes receiving (eg, using communications manager 140 and / or receiving component 1602) an indication of an offset.

[0199] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, process 1200 includes determining (e.g., using communication manager 140 and / or determination component 1608) a first cyclic shift using an output from a hopping formula, and determining (e.g., using communication manager 140 and / or determination component 1608) a second cyclic shift using an offset from the first cyclic shift.

[0200] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, a first port is associated with a first group of ports, and one or more additional cyclic shifts are assigned to one or more additional ports in the first group of ports based on the first cyclic shift.

[0201] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the second port is associated with a second group of ports, and one or more additional cyclic shifts are assigned to one or more additional ports in the second group of ports based on the second cyclic shift.

[0202] In a seventh aspect, either alone or in combination with one or more of aspects 1 to 6, process 1200 includes determining (e.g., using communication manager 140 and / or determination component 1608) an assignment index using an output from a hopping formula, and determining (e.g., using communication manager 140 and / or determination component 1608) a first cyclic shift and a second cyclic shift using an assignment set corresponding to the assignment index.

[0203] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the assignment index jumps within a subset of the set of possible assignment indices.

[0204] although Fig.12 An example block diagram of process 1200 is shown, but in some aspects, process 1200 may include Fig.12The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 1200 may be performed in parallel.

[0205] Fig.13 1 is a diagram illustrating an example process 1300 performed, for example, by a network entity according to the present disclosure. The example process 1300 is a diagram in which a network entity (e.g., network node 110 and / or Fig.17 An example of a device 1700) performing operations associated with cyclic shift hopping.

[0206] like Fig.13 As further shown, in some aspects, process 1300 may include sending a configuration indicating at least one uplink reference signal resource (block 1310). For example, a network entity (e.g., using Fig.17 The depicted communications manager 150 and / or transmitting component 1704) may transmit a configuration indicating at least one uplink reference signal resource, as described herein.

[0207] like Fig.13 As further shown in FIG. 1 , in some aspects, process 1300 may include receiving, using at least one uplink reference signal resource, a first uplink reference signal associated with a first port and having a first cyclic shift (block 1320). For example, a network entity (e.g., using Fig.17 The depicted communications manager 150 and / or receiving component 1702) may receive a first uplink reference signal having a first cyclic shift associated with a first port using at least one uplink reference signal resource, as described herein.

[0208] like Fig.13 As further shown in , in some aspects, process 1300 may include receiving, using at least one uplink reference signal resource, a second uplink reference signal associated with a second port having a second cyclic shift, the second cyclic shift being selected based at least in part on the first cyclic shift (block 1330). For example, as described herein, a network entity (e.g., using communications manager 150 and / or receiving component 1702) may receive, using at least one uplink reference signal resource, a second uplink reference signal associated with a second port having a second cyclic shift, the second cyclic shift being selected based at least in part on the first cyclic shift.

[0209] Process 1300 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.

[0210] In a first aspect, the first uplink reference signal and the second uplink reference signal include SRS.

[0211] In a second aspect, alone or in combination with the first aspect, process 1300 includes using a first output from a jump formula to determine (e.g., using Fig.17 The depicted communication manager 150 and / or determining component 1708) determines a first cyclic shift, and determines (e.g., using the communication manager 150 and / or determining component 1708) a second cyclic shift using a second output from the hopping formula, wherein when the first output and the second output are the same, the second cyclic shift is re-determined using an offset from the first cyclic shift.

[0212] In a third aspect, alone or in combination with one or more of the first-second aspects, process 1300 also includes sending (eg, using communication manager 150 and / or sending component 1704) an indication of the offset.

[0213] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, process 1300 includes determining (e.g., using communication manager 150 and / or determination component 1708) a first cyclic shift using an output from a hopping formula, and determining (e.g., using communication manager 150 and / or determination component 1708) a second cyclic shift using an offset from the first cyclic shift.

[0214] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, a first port is associated with a first group of ports, and one or more additional cyclic shifts are associated with one or more additional ports in the first group of ports based on the first cyclic shift.

[0215] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the second port is associated with a second group of ports, and one or more additional cyclic shifts are associated with one or more additional ports in the second group of ports based on the second cyclic shift.

[0216] In a seventh aspect, either alone or in combination with one or more of aspects 1 to 6, process 1300 includes determining (e.g., using communication manager 150 and / or determination component 1708) an assignment index using an output from a hopping formula, and determining (e.g., using communication manager 150 and / or determination component 1708) a first cyclic shift and a second cyclic shift using an assignment set corresponding to the assignment index.

[0217] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the assignment index jumps within a subset of the set of possible assignment indices.

[0218] although Fig.13Example blocks of process 1300 are shown, but in some aspects, process 1300 may include Fig.13 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 1300 may be performed in parallel.

[0219] Fig.14 1400 is a diagram illustrating an example process 1400 performed, for example, by a UE according to the present disclosure. The example process 1400 is a diagram in which a UE (e.g., UE 120 and / or Fig.16 An example of a device 1600) performing operations associated with cyclic shift hopping.

[0220] like Fig.14 As shown, in some aspects, process 1400 may include receiving a configuration indicating at least one uplink reference signal resource (block 1410). For example, a UE (e.g., using Fig.16 The depicted communications manager 140 and / or receiving component 1602) may receive a configuration indicating at least one uplink reference signal resource, as described herein.

[0221] like Fig.14 As further shown in FIG. 14 , in some aspects, process 1400 may include sending a plurality of uplink reference signals using at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the plurality of uplink reference signals hops within a subset of a set of possible cyclic shifts (block 1420). For example, a UE (e.g., using Fig.16 The depicted communication manager 140 and / or sending component 1604) may use at least one uplink reference signal resource to send multiple uplink reference signals, wherein a cyclic shift for a first port associated with the multiple uplink reference signals hops within a subset of a set of possible cyclic shifts, as described herein.

[0222] Process 1400 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.

[0223] In a first aspect, the plurality of uplink reference signals comprises an SRS.

[0224] In a second aspect, either alone or in combination with the first aspect, process 1400 also includes receiving (eg, using communications manager 140 and / or receiving component 1602) an indication of a subset.

[0225] In a third aspect, alone or in combination with one or more of the first and second aspects, one or more additional cyclic shifts are assigned to one or more additional ports based on the cyclic shift for the first port.

[0226] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, a first port is associated with a first group of ports, and one or more additional cyclic shifts are assigned to one or more additional ports in the first group of ports based on the cyclic shift for the first port.

[0227] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the cyclic shift for the first port is based at least in part on a time function.

[0228] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the time function comprises a pseudo-random sequence initialized by a time measurement.

[0229] although Fig.14 Example blocks of process 1400 are shown, but in some aspects, process 1400 may include Fig.14 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 1400 may be performed in parallel.

[0230] Fig.15 1 is a diagram illustrating an example process 1500 performed, for example, by a network entity according to the present disclosure. The example process 1500 is a diagram in which a network entity (e.g., network node 110 and / or Fig.17 An example of an apparatus 1700) performing operations associated with cyclic shift hopping for an uplink reference signal.

[0231] like Fig.15 As further shown, in some aspects, process 1500 may include sending a configuration indicating at least one uplink reference signal resource (block 1510). For example, a network entity (e.g., using Fig.17 The depicted communications manager 150 and / or transmitting component 1704) may transmit a configuration indicating at least one uplink reference signal resource, as described herein.

[0232] like Fig.15 As further shown in FIG. 1 , in some aspects, process 1500 may include receiving a plurality of uplink reference signals using at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the plurality of uplink reference signals hops within a subset of a set of possible cyclic shifts (block 1520). For example, a network entity (e.g., using Fig.17The depicted communication manager 150 and / or receiving component 1702) may use at least one uplink reference signal resource to receive multiple uplink reference signals, wherein a cyclic shift for a first port associated with the multiple uplink reference signals jumps within a subset of a set of possible cyclic shifts, as described herein.

[0233] Process 1500 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.

[0234] In a first aspect, the plurality of uplink reference signals comprises an SRS.

[0235] In a second aspect, either alone or in combination with the first aspect, process 1500 also includes sending (eg, using communication manager 150 and / or sending component 1704) an indication of the subset.

[0236] In a third aspect, alone or in combination with one or more of the first and second aspects, one or more additional cyclic shifts are associated with one or more additional ports and are based on the cyclic shift for the first port.

[0237] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, a first port is associated with a first group of ports, and one or more additional cyclic shifts are associated with one or more additional ports in the first group of ports based on the cyclic shift used for the first port.

[0238] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the cyclic shift for the first port is based at least in part on a time function.

[0239] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the time function comprises a pseudo-random sequence initialized by a time measurement.

[0240] although Fig.15 Example blocks of process 1500 are shown, but in some aspects, process 1500 may include Fig.15 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 1500 may be performed in parallel.

[0241] Fig.161 is a diagram of an example apparatus 1600 for wireless communication according to the present disclosure. Apparatus 1600 may be a UE, or a UE may include apparatus 1600. In some aspects, apparatus 1600 includes a receiving component 1602 and a sending component 1604, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1600 may communicate with another apparatus 1606 (such as a UE, RU, or another wireless communication device) using receiving component 1602 and sending component 1604. As further shown, apparatus 1600 may include a communication manager 140. Communication manager 140 may include one or more of a determining component 1608 and / or a sorting component 1610, etc.

[0242] In some aspects, the apparatus 1600 may be configured to perform Figures 6 to 9 Additionally or alternatively, the apparatus 1600 may be configured to perform one or more processes described herein, such as Fig.10 The process of 1000 Fig.12 The process 1200 Fig.14 In some aspects, Fig.16 The device 1600 and / or one or more components shown may include a combination of Figure 2 One or more components of the UE. Additionally or alternatively, Fig.16 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the component set 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 codes stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.

[0243] The receiving component 1602 may receive communications from the device 1606, such as reference signals, control information, data communications, or combinations thereof. The receiving component 1602 may provide the received communications to one or more other components of the device 1600. In some aspects, the receiving component 1602 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 the one or more other components of the device 1600. In some aspects, the receiving component 1602 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories or combinations thereof of the UE.

[0244] Transmit component 1604 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1606. In some aspects, one or more other components of device 1600 may generate communications and may provide the generated communications to transmit component 1604 for transmission to device 1606. In some aspects, transmit component 1604 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 device 1606. In some aspects, transmit component 1604 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the UE. In some aspects, the transmit component 1604 can be co-located with the receive component 1602 in a transceiver.

[0245] In some aspects, receiving component 1602 may receive a configuration indicating at least one uplink reference signal resource. Sending component 1604 may use the at least one uplink reference signal resource to send a plurality of uplink reference signals. For example, sorting component 1610 may select at least one base sequence for generating the plurality of uplink reference signals. A first cyclic shift for the plurality of uplink reference signals may be based at least in part on a time function measured in increments longer than one symbol.

[0246] In some aspects, the determining component 1608 may use a first output from the time function to determine a first cyclic shift for the first port. Additionally, in some aspects, the determining component 1608 may use a second output from the time function to determine a second cyclic shift for the second port. When the first output and the second output are the same, the second cyclic shift may be re-determined using an offset from the first cyclic shift. Alternatively, the determining component 1608 may use an offset from the first cyclic shift to determine the second cyclic shift.

[0247] Alternatively, determining component 1608 can use the output from the time function to determine the assignment index.Thus, determining component 1608 can determine the first cyclic shift and one or more additional cyclic shifts using the assignment set corresponding to the assignment index.

[0248] In some aspects, transmitting component 1604 may transmit on a first port using at least one uplink reference signal resource with a first cyclic shift. Transmitting component 1604 may also transmit on a second port using at least one uplink reference signal resource with a second cyclic shift selected based at least in part on the first cyclic shift.

[0249] In some aspects, determining component 1608 may use a first output from the hopping formula to determine a first cyclic shift. Additionally, in some aspects, determining component 1608 may use a second output from the hopping formula to determine a second cyclic shift. When the first output and the second output are the same, the second cyclic shift may be re-determined using an offset from the first cyclic shift. Alternatively, determining component 1608 may use an offset from the first cyclic shift to determine the second cyclic shift.

[0250] In some aspects, determining component 1608 can use an output from the hopping formula to determine the assignment index.Thus, determining component 1608 can determine the first cyclic shift and the second cyclic shift using the assignment set corresponding to the assignment index.

[0251] In any of the above aspects, the cyclic shift for the first port may be hopped within a subset of the set of possible cyclic shifts.

[0252] Fig.16 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.16 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.16 Two or more components shown may be implemented in a single component, or Fig.16 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.16 The assembly (one or more components) shown may be described as being executable by Fig.16 Another collection of components shown performs one or more functions.

[0253] Fig.17 1 is a diagram of an example apparatus 1700 for wireless communication according to the present disclosure. Apparatus 1700 may be a network entity, or a network entity may include apparatus 1700. In some aspects, apparatus 1700 includes a receiving component 1702 and a transmitting component 1704, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1700 may communicate with another apparatus 1706 (such as a UE, RU, or another wireless communication device) using receiving component 1702 and transmitting component 1704. As further shown, apparatus 1700 may include a communication manager 150. Communication manager 150 may include one or more of a determining component 1708 and / or a cyclic shift component 1710, etc.

[0254] In some aspects, the apparatus 1700 may be configured to perform Figures 6 to 9Additionally or alternatively, the apparatus 1700 may be configured to perform one or more processes described herein, such as Fig.11 Process 1100, Fig.13 Process 1300, Fig.15 In some aspects, Fig.17 The device 1700 and / or one or more components shown may include a combination of Figure 2 One or more components of the network node. Additionally or alternatively, Fig.17 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the component set 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 codes stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.

[0255] The receiving component 1702 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1706. The receiving component 1702 may provide the received communications to one or more other components of the device 1700. In some aspects, the receiving component 1702 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 the one or more other components of the device 1700. In some aspects, the receiving component 1702 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories or combinations thereof of the network node.

[0256] The transmitting component 1704 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1706. In some aspects, one or more other components of the device 1700 may generate communications and may provide the generated communications to the transmitting component 1704 for transmission to the device 1706. In some aspects, the transmitting component 1704 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 device 1706. In some aspects, the transmitting component 1704 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the network node. In some aspects, the transmit component 1704 can be co-located with the receive component 1702 in a transceiver.

[0257] In some aspects, the transmitting component 1704 can transmit a configuration indicating at least one uplink reference signal resource. Thus, the receiving component 1702 can receive a plurality of uplink reference signals using the at least one uplink reference signal resource. For example, the cyclic shift component 1710 can apply a first cyclic shift for a plurality of uplink reference signals based at least in part on a time function measured in increments longer than one symbol.

[0258] In some aspects, the determining component 1708 may use a first output from the time function to determine a first cyclic shift associated with the first port. Additionally, in some aspects, the determining component 1708 may use a second output from the time function to determine a second cyclic shift associated with the second port. When the first output and the second output are the same, the second cyclic shift may be re-determined using an offset from the first cyclic shift. Alternatively, the determining component 1708 may use an offset from the first cyclic shift to determine a second cyclic shift associated with the second port.

[0259] Alternatively, determining component 1708 can use the output from the time function to determine the assignment index.Thus, determining component 1708 can determine the first cyclic shift and one or more additional cyclic shifts using the assignment set corresponding to the assignment index.

[0260] In some aspects, receiving component 1702 may use at least one uplink reference signal resource to receive a first uplink reference signal associated with a first port having a first cyclic shift. Receiving component 1702 may also use at least one uplink reference signal resource to receive a second uplink reference signal associated with a second port having a second cyclic shift, the second cyclic shift being selected based at least in part on the first cyclic shift.

[0261] In some aspects, determining component 1708 may use a first output from the hopping formula to determine a first cyclic shift. Additionally, in some aspects, determining component 1708 may use a second output from the hopping formula to determine a second cyclic shift. When the first output and the second output are the same, the second cyclic shift may be re-determined using an offset from the first cyclic shift. Alternatively, determining component 1708 may use an offset from the first cyclic shift to determine the second cyclic shift.

[0262] In some aspects, determining component 1708 can use an output from the hopping formula to determine the assignment index. Thus, determining component 1708 can determine the first cyclic shift and the second cyclic shift using the assignment set corresponding to the assignment index.

[0263] In any of the above aspects, a cyclic shift for a first port associated with a plurality of uplink reference signals is hopped within a subset of a set of possible cyclic shifts.

[0264] Fig.17 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.17 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.17 Two or more components shown may be implemented in a single component, or Fig.17 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.17 The assembly (one or more components) shown may be described as being executable by Fig.17 Another collection of components shown performs one or more functions.

[0265] The following provides an overview of some aspects of the disclosure:

[0266] Aspect 1: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving a configuration indicating at least one uplink reference signal resource; and using the at least one uplink reference signal resource to send multiple uplink reference signals, wherein a first cyclic shift for the multiple uplink reference signals is at least partially based on a time function measured in increments longer than one symbol.

[0267] Aspect 2: The method according to aspect 1, wherein the multiple uplink reference signals include sounding reference signals.

[0268] Aspect 3: The method according to any one of aspects 1 to 2, wherein the time function comprises a pseudo-random sequence initialized by a time measurement.

[0269] Aspect 4: A method according to any one of Aspects 1 to 3, wherein the first cyclic shift is assigned to a first port associated with the at least one uplink reference signal resource, and one or more additional cyclic shifts are assigned to one or more additional ports based on the first cyclic shift.

[0270] Aspect 5: The method according to any one of aspects 1 to 4, wherein the first cyclic shift is assigned to a first port and hops within a subset of a set of possible cyclic shifts.

[0271] Aspect 6: The method according to any one of aspects 1 to 5, wherein the time function is measured in increments of frequency hopping.

[0272] Aspect 7: The method according to any one of aspects 1 to 5, wherein the time function is measured in increments of time slots.

[0273] Aspect 8: The method according to any one of aspects 1 to 5, wherein the time function is measured with a period for the at least one uplink reference signal resource.

[0274] Aspect 9: The method according to any one of aspects 1 to 5, wherein the time function is measured in increments of a frequency hopping period.

[0275] Aspect 10: According to the method described in any one of Aspects 1 to 9, the method further includes: using a first output from the time function to determine the first cyclic shift for a first port; and using a second output from the time function to determine a second cyclic shift for a second port, wherein when the first output and the second output are the same, the second cyclic shift is re-determined using an offset from the first cyclic shift.

[0276] Aspect 11: According to the method described in any one of Aspects 1 to 9, the method further includes: using the output from the time function to determine the first cyclic shift for the first port; and using the offset from the first cyclic shift to determine the second cyclic shift for the second port.

[0277] Aspect 12: According to the method described in any one of Aspects 1 to 9, the method further includes: determining an assignment index using an output from the time function; and determining the first cyclic shift and one or more additional cyclic shifts using an assignment set corresponding to the assignment index.

[0278] Aspect 13: The method according to aspect 12, wherein the assignment index jumps within a subset of a set of possible assignment indices.

[0279] Aspect 14: A method of wireless communication performed by a network entity, the method comprising: sending a configuration indicating at least one uplink reference signal resource; and receiving multiple uplink reference signals using the at least one uplink reference signal resource, wherein a first cyclic shift for the multiple uplink reference signals is at least partially based on a time function measured in increments longer than one symbol.

[0280] Aspect 15: The method according to aspect 14, wherein the plurality of uplink reference signals include sounding reference signals.

[0281] Aspect 16: The method according to any one of aspects 14 to 15, wherein the time function comprises a pseudo-random sequence initialized by a time measurement.

[0282] Aspect 17: A method according to any one of aspects 14 to 16, wherein the first cyclic shift is associated with a first port, and one or more additional cyclic shifts are associated with one or more additional ports and are based on the first cyclic shift.

[0283] Aspect 18: The method according to any one of aspects 14 to 17, wherein the first cyclic shift is associated with a first port and toggles within a subset of a set of possible cyclic shifts.

[0284] Aspect 19: The method according to any one of aspects 14 to 18, wherein the time function is measured in increments of frequency hopping.

[0285] Aspect 20: The method according to any one of aspects 14 to 18, wherein the time function is measured in increments of time slots.

[0286] Aspect 21: The method according to any one of aspects 14 to 18, wherein the time function is measured with a period for the at least one uplink reference signal resource.

[0287] Aspect 22: The method according to any one of aspects 14 to 18, wherein the time function is measured in increments of a frequency hopping period.

[0288] Aspect 23: According to the method described in any one of Aspects 14 to 22, the method further includes: using a first output from the time function to determine the first cyclic shift associated with a first port; and using a second output from the time function to determine a second cyclic shift associated with a second port, wherein when the first output and the second output are the same, the second cyclic shift is re-determined using an offset from the first cyclic shift.

[0289] Aspect 24: According to the method described in any one of Aspects 14 to 22, the method further includes: using the output from the time function to determine the first cyclic shift associated with the first port; and using the offset of the first cyclic shift to determine the second cyclic shift associated with the second port.

[0290] Aspect 25: According to the method according to any one of Aspects 14 to 22, the method also includes: determining an assignment index using an output from the time function; and determining the first cyclic shift and one or more additional cyclic shifts using an assignment set corresponding to the assignment index.

[0291] Aspect 26: The method according to aspect 25, wherein the assignment index jumps within a subset of a set of possible assignment indices.

[0292] Aspect 27: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving a configuration indicating at least one uplink reference signal resource; using the at least one uplink reference signal resource to send with a first cyclic shift on a first port; and using the at least one uplink reference signal resource to send with a second cyclic shift on a second port, wherein the second cyclic shift is selected at least in part based on the first cyclic shift.

[0293] Aspect 28: The method according to aspect 27, wherein the at least one uplink reference signal resource comprises a sounding reference signal resource.

[0294] Aspect 29: According to the method described in any one of Aspects 27 to 28, the method further includes: determining the first cyclic shift using a first output from a hopping formula; and determining the second cyclic shift using a second output from the hopping formula, wherein when the first output and the second output are the same, the second cyclic shift is re-determined using an offset from the first cyclic shift.

[0295] Aspect 30: The method according to aspect 29, the method further comprising: receiving an indication of the offset.

[0296] Aspect 31: According to the method according to any one of aspects 27 to 28, the method also includes: determining the first cyclic shift using an output from a hopping formula; and determining the second cyclic shift using an offset from the first cyclic shift.

[0297] Aspect 32: The method according to Aspect 31, further comprising: receiving an indication of the offset.

[0298] Aspect 33: The method according to any one of aspects 27 to 32, wherein the first port is associated with a first group of ports, and one or more additional cyclic shifts are assigned to one or more additional ports in the first group of ports based on the first cyclic shift.

[0299] Aspect 34: The method according to any one of aspects 27 to 33, wherein the second port is associated with a second group of ports, and one or more additional cyclic shifts are assigned to one or more additional ports in the second group of ports based on the second cyclic shift.

[0300] Aspect 35: According to the method according to any one of Aspects 27 to 28, the method also includes: determining an assignment index using an output from a hopping formula; and determining the first cyclic shift and the second cyclic shift using an assignment set corresponding to the assignment index.

[0301] Aspect 36: The method according to aspect 35, wherein the assignment index jumps within a subset of a set of possible assignment indices.

[0302] Aspect 37: A method of wireless communication performed by a network entity, the method comprising: sending a configuration indicating at least one uplink reference signal resource; using the at least one uplink reference signal resource to receive a first uplink reference signal with a first cyclic shift associated with a first port; and using the at least one uplink reference signal resource to receive a second uplink reference signal with a second cyclic shift associated with a second port, the second cyclic shift being selected at least in part based on the first cyclic shift.

[0303] Aspect 38: The method according to aspect 37, wherein the first uplink reference signal and the second uplink reference signal include sounding reference signals.

[0304] Aspect 39: According to the method described in any one of Aspects 37 to 38, the method further includes: determining the first cyclic shift using a first output from a hopping formula; and determining the second cyclic shift using a second output from the hopping formula, wherein when the first output and the second output are the same, the second cyclic shift is re-determined using an offset from the first cyclic shift.

[0305] Aspect 40: The method according to Aspect 39 further comprises: sending an indication of the offset.

[0306] Aspect 41: According to the method according to any one of aspects 37 to 38, the method also includes: determining the first cyclic shift using an output from a hopping formula; and determining the second cyclic shift using an offset from the first cyclic shift.

[0307] Aspect 42: The method according to Aspect 41 further comprises: sending an indication of the offset.

[0308] Aspect 43: A method according to any one of aspects 37 to 42, wherein the first port is associated with a first group of ports, and one or more additional cyclic shifts are associated with one or more additional ports in the first group of ports based on the first cyclic shift.

[0309] Aspect 44: A method according to any one of aspects 37 to 43, wherein the second port is associated with a second group of ports, and one or more additional cyclic shifts are associated with one or more additional ports in the second group of ports based on the second cyclic shift.

[0310] Aspect 45: According to the method according to any one of Aspects 37 to 38, the method also includes: determining an assignment index using an output from a hopping formula; and determining the first cyclic shift and the second cyclic shift using an assignment set corresponding to the assignment index.

[0311] Aspect 46: The method according to aspect 45, wherein the assignment index jumps within a subset of a set of possible assignment indices.

[0312] Aspect 47: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving a configuration indicating at least one uplink reference signal resource; and using the at least one uplink reference signal resource to send multiple uplink reference signals, wherein a cyclic shift for a first port associated with the multiple uplink reference signals jumps within a subset of a set of possible cyclic shifts.

[0313] Aspect 48: The method according to aspect 47, wherein the plurality of uplink reference signals include sounding reference signals.

[0314] Aspect 49: According to any one of aspects 47 to 48, the method further includes: receiving an indication of the subset.

[0315] Aspect 50: The method according to any one of aspects 47 to 48, wherein one or more additional cyclic shifts are assigned to one or more additional ports based on the cyclic shift for the first port.

[0316] Aspect 51: A method according to any one of aspects 47 to 48, wherein the first port is associated with a first group of ports, and one or more additional cyclic shifts are assigned to one or more additional ports in the first group of ports based on the cyclic shift for the first port.

[0317] Aspect 52: The method according to any one of aspects 47 to 51, wherein the cyclic shift for the first port is based at least in part on a time function.

[0318] Aspect 53: The method according to Aspect 52, wherein the time function comprises a pseudo-random sequence initialized by a time measurement.

[0319] Aspect 54: A method of wireless communication performed by a network entity, the method comprising: sending a configuration indicating at least one uplink reference signal resource; and using the at least one uplink reference signal resource to receive multiple uplink reference signals, wherein a cyclic shift for a first port associated with the multiple uplink reference signals jumps within a subset of a set of possible cyclic shifts.

[0320] Aspect 55: The method according to aspect 54, wherein the plurality of uplink reference signals include sounding reference signals.

[0321] Aspect 56: According to any one of aspects 54 to 55, the method further comprises: sending an indication of the subset.

[0322] Aspect 57: A method according to any one of aspects 54 to 56, wherein one or more additional cyclic shifts are associated with one or more additional ports and are based on the cyclic shift for the first port.

[0323] Aspect 58: A method according to any one of aspects 54 to 56, wherein the first port is associated with a first group of ports, and one or more additional cyclic shifts are associated with one or more additional ports in the first group of ports based on the cyclic shift used for the first port.

[0324] Aspect 59: The method according to any one of aspects 54 to 58, wherein the cyclic shift for the first port is based at least in part on a time function.

[0325] Aspect 60: The method according to aspect 59, wherein the time function includes a pseudo-random sequence initialized by a time measurement.

[0326] Aspect 61: An apparatus for performing wireless communications 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 60.

[0327] Aspect 62: A device for wireless communication, the device comprising: a memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 1 to 60.

[0328] Aspect 63: 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 60.

[0329] Aspect 64: 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 60.

[0330] Aspect 65: 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 60.

[0331] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the various aspects.

[0332] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning 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, procedures and / or functions, etc. As used herein, a "processor" is implemented in a combination of hardware and / or hardware and software. It will be apparent that the systems and / or methods described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, there is no reference to a specific software code herein to describe the operation and behavior of the system and / or method, because those skilled in the art will understand that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.

[0333] The hardware and data processing apparatus for implementing the various illustrative logics, logic blocks, modules and circuits described in conjunction with the various aspects disclosed herein may be implemented or executed using a general purpose single-chip or multi-chip processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic component, a discrete hardware component or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, or any conventional processor, controller, microcontroller or state machine. A processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration. In some aspects, specific processes and methods may be performed by circuits dedicated to a given function.

[0334] As used herein, "satisfying a threshold" may refer to a value being 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.

[0335] Although the specific combination of features is 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 that is not specifically described in the claims and / or is 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" the list of items refers to any combination of these items (it includes a single member). As an example, "at least one of a, b or c" is intended to cover a, b, c, a+b, a+c, b+c and a+b+c, and any combination with 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 ordering of a, b and c).

[0336] 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 article "one" is intended to include one or more items, and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items mentioned in conjunction with the article "said", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items, and can be used interchangeably with "one or more". If only one item is intended to be referred to, 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 may also have B). In addition, the phrase "based on" is intended to represent "based at least in part 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 at a user equipment (UE), the device include: Memory; as well as one or more processors coupled to the memory, the one or more processors configured to: receiving a configuration indicating at least one uplink reference signal resource; as well as A plurality of uplink reference signals are sent using the at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the plurality of uplink reference signals hops within a subset of a set of possible cyclic shifts.

2. The apparatus of claim 1, wherein the plurality of uplink reference signals comprises sounding reference signals.

3. The apparatus of claim 1 , wherein the one or more processors are further configured to: An indication of the subset is received.

4. The apparatus of claim 1, wherein one or more additional cyclic shifts are assigned to one or more additional ports based on the cyclic shift for the first port.

5. The apparatus of claim 1, wherein the first port is associated with a first group of ports, and one or more additional cyclic shifts are assigned to one or more additional ports in the first group of ports based on the cyclic shift for the first port.

6. The apparatus of claim 1, wherein the cyclic shift for the first port is based at least in part on a time function.

7. The apparatus of claim 6, wherein the time function comprises a pseudo-random sequence initialized by a time measurement.

8. An apparatus for wireless communication at a network entity, the apparatus include: Memory; as well as one or more processors coupled to the memory, the one or more processors configured to: sending a configuration indicating at least one uplink reference signal resource; as well as A plurality of uplink reference signals are received using the at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the plurality of uplink reference signals is hopped within a subset of a set of possible cyclic shifts.

9. The apparatus of claim 8, wherein the plurality of uplink reference signals comprises sounding reference signals.

10. The apparatus of claim 8, wherein the one or more processors are further configured to: An indication of the subset is sent.

11. The apparatus of claim 8, wherein one or more additional cyclic shifts are associated with one or more additional ports and are based on the cyclic shift for the first port.

12. The apparatus of claim 8, wherein the first port is associated with a first group of ports, and one or more additional cyclic shifts are associated with one or more additional ports in the first group of ports based on the cyclic shift for the first port.

13. The apparatus of claim 8, wherein the cyclic shift for the first port is based at least in part on a time function.

14. The apparatus of claim 13, wherein the time function comprises a pseudo-random sequence initialized by a time measurement.

15. A method of wireless communication performed by a user equipment (UE), the method include: receiving a configuration indicating at least one uplink reference signal resource; as well as A plurality of uplink reference signals are sent using the at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the plurality of uplink reference signals hops within a subset of a set of possible cyclic shifts. The method of claim 15 , wherein the plurality of uplink reference signals comprises sounding reference signals.

17. The method according to claim 15, further comprising: include: An indication of the subset is received.

18. The method of claim 15, wherein one or more additional cyclic shifts are assigned to one or more additional ports based on the cyclic shift for the first port.

19. The method of claim 15, wherein the first port is associated with a first group of ports, and one or more additional cyclic shifts are assigned to one or more additional ports in the first group of ports based on the cyclic shift for the first port.

20. The method of claim 15, wherein the cyclic shift for the first port is based at least in part on a time function.

21. The method of claim 20, wherein the time function comprises a pseudo-random sequence initialized by a time measurement.

22. A method of wireless communication performed by a network entity, the method include: sending a configuration indicating at least one uplink reference signal resource; as well as A plurality of uplink reference signals are received using the at least one uplink reference signal resource, wherein a cyclic shift for a first port associated with the plurality of uplink reference signals is hopped within a subset of a set of possible cyclic shifts.

23. The method of claim 22, wherein the plurality of uplink reference signals comprises sounding reference signals.

24. The method according to claim 22, further comprising: include: An indication of the subset is sent.

25. The method of claim 22, wherein one or more additional cyclic shifts are associated with one or more additional ports and are based on the cyclic shift for the first port.

26. The method of claim 22, wherein the first port is associated with a first group of ports and one or more additional cyclic shifts are associated with one or more additional ports in the first group of ports based on the cyclic shift for the first port.

27. The method of claim 22, wherein the cyclic shift for the first port is based at least in part on a time function.

28. The method of claim 27, wherein the time function comprises a pseudo-random sequence initialized by a time measurement.

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