Signaling of protocol data unit set information

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a first network node may send at least one packet of a first set of protocol data units (PDUs) to a second network node during a first time period, the at least one packet of the first set of PDUs including PDU set information associated with a second set of PDUs. The first network node may send at least one packet of the second set of PDUs to the second network node during a second time period occurring after the first time period. Numerous other aspects are described.

Description

[0001] Cross-reference to related applications

[0002] This patent application claims priority to U.S. Patent Application No. 18 / 468,314, filed September 15, 2023, entitled “SIGNALING OF PROTOCOL DATAUNIT SET INFORMATION,” which is assigned to the assignee of this application. The disclosure of the earlier application is considered part of this patent application and is incorporated herein by reference. Technical Field

[0003] Various aspects of this disclosure generally relate to wireless communication, and specifically to techniques and apparatus for signaling of protocol data unit set information. Background Technology

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that enable 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 an enhancement set of the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).

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

[0006] The aforementioned multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables different UEs to communicate at the city, country, region, and / or global levels. New Radio (NR) (which may be referred to as 5G) is a set of enhancements to the LTE mobile standard issued by 3GPP. NR is designed to better support mobile broadband internet access by: improving spectrum efficiency; reducing costs; improving service; utilizing new spectrum; and better integrating with other open standards by using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) on the downlink (CP-OFDM), and CP-OFDM and / or Single Carrier Frequency Division Multiplexing (SC-FDM) (also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink; and supporting beamforming, Multiple-Input Multiple-Output (MIMO) antenna technologies and carrier aggregation. Further improvements to LTE, NR, and other radio access technologies remain useful as the demand for mobile broadband access continues to increase. Summary of the Invention

[0007] Some aspects described herein relate to an apparatus for wireless communication at a first network node. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to cause the apparatus to transmit at least one packet of a first set of Protocol Data Units (PDUs) to a second network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set. The one or more processors may be configured to cause the apparatus to transmit at least one packet of a second set of PDUs to the second network node during a second time period occurring after the first time period.

[0008] Some aspects described herein relate to an apparatus for wireless communication at a second network node. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to cause the apparatus to transmit at least one packet of a first PDU set to a user equipment (UE) during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set. The one or more processors may be configured to cause the apparatus to receive extracted PDU set information associated with the PDU set information from the UE. The one or more processors may be configured to cause the apparatus to receive at least one packet of the second PDU set from a first network node during a second time period occurring after the first time period. The one or more processors may be configured to cause the apparatus to transmit at least one packet of the second PDU set in association with the extracted PDU set information.

[0009] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to cause the apparatus to receive at least one packet of a first PDU set from a network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set. The one or more processors may be configured to cause the apparatus to transmit extracted PDU set information associated with the PDU set information to the network node. The one or more processors may be configured to cause the apparatus to receive at least one packet of the second PDU set in association with the extracted PDU set information and during a second time period occurring after the first time period.

[0010] Some aspects described herein relate to a method of wireless communication performed by a first network node. The method may include: transmitting at least one packet of a first PDU set to a second network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set. The method may also include: transmitting at least one packet of a second PDU set to the second network node during a second time period occurring after the first time period.

[0011] Some aspects described herein relate to a method of wireless communication performed by a second network node. The method may include: transmitting at least one packet of a first PDU set to a UE during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set. The method may include: receiving extracted PDU set information associated with the PDU set information from the UE. The method may include: receiving at least one packet of the second PDU set from the first network node during a second time period occurring after the first time period. The method may include: transmitting at least one packet of the second PDU set in association with the extracted PDU set information.

[0012] Some aspects described herein relate to a method for wireless communication performed by a UE. The method may include: receiving at least one packet of a first PDU set from a network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set. The method may include: transmitting extracted PDU set information associated with the PDU set information to the network node. The method may include: receiving at least one packet of the second PDU set in association with the extracted PDU set information and during a second time period occurring after the first time period.

[0013] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a first network node. When executed by one or more processors of the first network node, the set of instructions causes the first network node to transmit at least one packet of a first set of PDUs to a second network node during a first time period, the at least one packet of the first set of PDUs including PDU set information associated with a second set of PDUs. When executed by one or more processors of the first network node, the set of instructions causes the first network node to transmit at least one packet of a second set of PDUs to the second network node during a second time period occurring after the first time period.

[0014] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a second network node. When executed by one or more processors of the second network node, the set of instructions causes the second network node to transmit at least one packet of a first PDU set to a UE during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set. When executed by one or more processors of the second network node, the set of instructions causes the second network node to receive extracted PDU set information associated with the PDU set information from the UE. When executed by one or more processors of the second network node, the set of instructions causes the second network node to receive at least one packet of the second PDU set from a first network node during a second time period occurring after the first time period. When executed by one or more processors of the second network node, the set of instructions causes the second network node to transmit at least one packet of the second PDU set in association with the extracted PDU set information.

[0015] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a UE. When executed by one or more processors of the UE, the set of instructions enables the UE to receive at least one packet of a first PDU set from a network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set. When executed by one or more processors of the UE, the set of instructions enables the UE to transmit extracted PDU set information associated with the PDU set information to the network node. When executed by one or more processors of the UE, the set of instructions enables the UE to receive at least one packet of a second PDU set in association with the extracted PDU set information and during a second time period occurring after the first time period.

[0016] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for transmitting at least one packet of a first PDU set to a network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set. The apparatus may also include components for transmitting at least one packet of a second PDU set to a network node during a second time period occurring after the first time period.

[0017] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for transmitting at least one packet of a first PDU set to a UE during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set. The apparatus may include components for receiving extracted PDU set information associated with the PDU set information from the UE. The apparatus may include components for receiving at least one packet of a second PDU set from a network node during a second time period occurring after the first time period. The apparatus may include components for transmitting at least one packet of the second PDU set in association with the extracted PDU set information.

[0018] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for receiving at least one packet from a network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set. The apparatus may include components for transmitting extracted PDU set information associated with the PDU set information to the network node. The apparatus may also include components for receiving at least one packet of the second PDU set in association with the extracted PDU set information and during a second time period occurring after the first time period.

[0019] The entirety of the terms includes 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 accompanying drawings and description and illustrated as illustrated in the drawings and description.

[0020] The features and technical advantages of the examples according to this disclosure have been summarized rather extensively above in order to better understand the detailed description below. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily utilized as the basis for modifying or designing other structures for achieving the same purpose of this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, in both their organization and manner of operation, and the associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each drawing provided in the drawings is for illustrative and descriptive purposes and not as a limitation of the definitions in the claims.

[0021] While aspects are described herein by way of example, those skilled in the art will understand that such aspects can be implemented in many different arrangements and scenarios. The techniques described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or package arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-modular components (e.g., end-user equipment, vehicles, communication equipment, computing devices, industrial equipment, retail / shopping devices, medical devices, and / or artificial intelligence devices). 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. Devices incorporating the described aspects and features may include additional components and features for implementing and practicing the claimed and described aspects. 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 aspects described herein are intended to be practiced in a wide variety of devices, components, systems, distributed arrangements, and / or end-user equipment of various sizes, shapes, and configurations. Attached Figure Description

[0022] To gain a full understanding of the foregoing features of this disclosure, a more specific description of the invention, briefly outlined above, can be obtained by referring to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and are therefore not to be considered as limiting its scope, as other equally valid aspects are permissible in this description. The same reference numerals in different drawings may identify the same or similar elements.

[0023] Figure 1 This is a diagram illustrating an example of a wireless network according to the present disclosure.

[0024] Figure 2 This is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network according to the present disclosure.

[0025] Figure 3 This is a diagram illustrating an example decomposed base station architecture according to this disclosure.

[0026] Figure 4 This is a diagram illustrating examples of user plane protocol stacks and control plane protocol stacks of network nodes and core networks used for communicating with a UE according to this disclosure.

[0027] Figure 5 This is a diagram illustrating communication based on the Protocol Data Unit (PDU) set according to this disclosure.

[0028] Figure 6 This is a flowchart illustrating an example of signaling associated with PDU set information.

[0029] Figure 7 This is a diagram illustrating an example process performed, for example, at a first network node or at a device of the first network node, according to the present disclosure.

[0030] Figure 8 This is a diagram illustrating an example process performed, for example, at a second network node or at a device of a second network node, according to the present disclosure.

[0031] Figure 9 This is a diagram illustrating an example process performed, for example, at the UE or a device of the UE, according to this disclosure.

[0032] Figure 10 This is a diagram of an example device for wireless communication according to the present disclosure.

[0033] Figure 11 This is a diagram of an example device for wireless communication according to the present disclosure. Detailed Implementation

[0034] Applications at the transmitter can generate information for consumption by applications at the receiver. For example, the information may include information units that will benefit from being delivered to the receiver as integrated units after migration through the network and radio access network (RAN) layers of both the transmitter and receiver. To facilitate the delivery of information units as integrated units (e.g., as opposed to disposing of different parts of the information independently without considering the information units as a whole), wireless communication technologies (e.g., 5G / NR) can provide Protocol Data Units (PDUs) carrying the information units for delivery as a set of PDUs. The PDU set may have common Quality of Service (QoS) attributes, such as the PDU set delay budget and the PDU set error rate. The PDU set may also be associated with various PDU set parameters, such as a PDU set importance parameter (indicating the importance level of the PDU set) or a PDU set integration processing indicator (PSIHI) (indicating whether the PDU set is an all-or-nothing PDU set or a non-all-or-nothing PDU set).

[0035] In some cases, a first network node may send a PDU set to a second network node. In some cases, PDU set information (information about the PDU set) may be carried in the payload and / or header (e.g., header extension) of one or more packets within the PDU set packet to allow a User Plane Function (UPF) to extract the PDU set information and transmit it to the second network node for resource allocation in the RAN. In some cases, the PDU set information includes a PDU set sequence number (PSSN) (e.g., 10 bits), a PDU set importance (PSI) (e.g., 4 bits), a PDU set size (PSSize) (e.g., 24 bits), the last PDU (E) in the PDU set (e.g., 1 bit), the end of the data burst (EDB) (e.g., 3 bits), and / or the PDU sequence number (PSN) within the PDU set (e.g., 6 bits), etc.

[0036] However, in some cases, packets and / or headers may be encrypted. For example, in the case of Secure Real-Time Transport Protocol (SRTP), RTP packets and RTP headers may be encrypted. If the RTP header (e.g., including header extensions) is encrypted, the UPF may not be able to access PDU set information from the RTP header extensions of the RTP packets. In this case, because the second network node may not know the PDU set information before sending the PDU set to the User Equipment (UE), the second network node may allocate additional resources to ensure sufficient resources are allocated for sending the PDU set. For example, without PDU set information, the second network node may not know the PDU set size and / or the arrival time of the first packet of the PDU set. Therefore, encryption of the RTP header (and / or packets) can lead to inefficient resource allocation.

[0037] Some aspects of the techniques and apparatus described herein facilitate signaling of PDU set information by enabling network nodes to appropriately allocate resources for transmitting corresponding PDU sets to the UE. For example, in some aspects, PDU set information associated with PDU set N+1 may be included within an earlier transmitted PDU set (e.g., PDU set N). The PDU set information associated with PDU set N+1 may be predicted by a first network node. For example, the PDU information may be predicted in association with a compression and / or encoding process associated with a previous PDU set (e.g., PDU set N). In this way, a second network node may receive the PDU set information associated with the PDU set before receiving the PDU set, and thus can use the PDU set information to allocate resources for transmitting the PDU set to the UE. In this way, some aspects can facilitate more efficient resource allocation, thereby positively impacting network and / or device performance.

[0038] Various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be comprehensive and complete, and will fully convey the scope of protection of this disclosure to those skilled in the art. Those skilled in the art will appreciate that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently or in combination with any other aspect of this disclosure. For example, any number of aspects set forth herein may be used to implement an apparatus or method of practice. Furthermore, the scope of this disclosure is intended to cover such apparatuses or methods implemented using structures, functions, or structures and functions other than or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure herein may be embodied by one or more elements of the claims.

[0039] Aspects and examples generally include methods, apparatus, network nodes, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices and / or processing systems as described or fully described herein with reference to the accompanying drawings and description and illustrated as such.

[0040] This disclosure can be readily used as the basis for modifying or designing other structures for performing the same purposes as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein (both their organization and manner of operation) and their associated advantages are better understood in conjunction with the accompanying drawings, based on the following description. Each figure provided in the drawings is for illustrative and descriptive purposes and not as a limitation of the definitions in the claims.

[0041] While aspects are described herein by way of example, such aspects can be implemented in many different arrangements and scenarios. The techniques described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or package arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-modular components (e.g., end-user equipment, vehicles, communication equipment, computing devices, industrial equipment, retail / shopping devices, medical devices, and / or artificial intelligence devices). 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. Devices incorporating the described aspects and features may include additional components and features for implementing and practicing the claimed and described aspects. 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 aspects described herein can be practiced in a wide variety of devices, components, systems, distributed arrangements, and / or end-user equipment of different sizes, shapes, and configurations.

[0042] Various devices and techniques will now be used to illustrate several aspects of a telecommunications system. These devices and techniques will be described in detail below and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively, “elements”). These elements may be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the system as a whole.

[0043] Although terms generally associated with 5G or New Radio (NR) Radio Access Technology (RAT) may be used herein to describe aspects, aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT and / or 5G and later (e.g., 6G) RATs.

[0044] Figure 1This 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., LTE) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., 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. Network node 110 is a network node that communicates with UE 120. As shown, network node 110 may include one or more network nodes. For example, network node 110 can be an aggregated network node, meaning that the aggregated 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, network node 110 can be a decomposed network node (sometimes referred to as a decomposed base station), meaning that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed among 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)).

[0045] In some examples, network node 110 is or includes network nodes such as RU that communicate with UE 120 via a radio access link. In some examples, network node 110 is or includes network nodes such as DU that communicate with other network nodes 110 via a fronthaul or midhaul link. In some examples, network node 110 is or includes network nodes such as CU that communicate with other network nodes 110 via a midhaul link or with the core network via a backhaul link. In some examples, network node 110 (such as aggregated network node 110 or decomposed network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. Network node 110 may include, for example, NR base stations, LTE base stations, Node Bs, eNBs (e.g., in 4G), gNBs (e.g., in 5G), access points, Transmit / Receive Points (TRPs), DUs, RUs, CUs, network mobility elements, core network nodes, network elements, network equipment, RAN nodes, or combinations thereof. In some examples, network nodes 110 can interconnect with each other or with one or more other network nodes 110 in the wireless network 100 using any suitable transport network through various types of fronthaul interfaces, midhaul interfaces, and / or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks).

[0046] In some examples, network node 110 may provide communication coverage for a specific geographic area. In the 3rd Generation Partnership Project (3GPP), depending on the context of terminology use, the term "cell" may refer to the coverage area of ​​network node 110 and / or the network node subsystem serving that coverage area. Network node 110 may provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. A macrocell may cover a relatively large geographic area (e.g., with a radius of several kilometers) and may allow unrestricted access by UE 120 with a service subscription. A picocell may cover a relatively small geographic area and may allow unrestricted access by UE 120 with a service subscription. A femtocell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UE 120 associated with the femtocell (e.g., UE 120 in a Closed Subscriber Group (CSG)). Network node 110 used for macrocells may be referred to as a macro network node. Network node 110 used for picocells may be referred to as a pico network node. The network node 110 used for femtocells can be referred to as a femtocell network node or a home network node. Figure 1 In the example shown, network node 110a may be a macro network node for macro cell 102a, network node 110b may be a pico network node for pico cell 102b, and network node 110c may be a femto network node for femto cell 102c. Network nodes may support one or more (e.g., three) cells. In some examples, the cells may not necessarily be stationary, and the geographical area of ​​the cells may move depending on the location of the mobile network node 110 (e.g., a mobile network node).

[0047] 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, "base station" or "network node" may refer to a CU, DU, 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 multiple different devices (which may be located in the same geographical location or different geographical locations) may be configured to perform at least a portion of a function, or to repeatedly perform at least a portion of that 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 can be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one base station function rather than another. In this way, a single device can include more than one base station.

[0048] Wireless network 100 may include one or more relay stations. A relay station is a network node that can receive data transmissions from upstream nodes (e.g., network node 110 or UE 120) and transmit data to downstream nodes (e.g., UE 120 or network node 110). A relay station may be a UE 120 that can relay transmissions to other UE 120s. Figure 1 In the example shown, network node 110d (e.g., a relay network node) can communicate with network node 110a (e.g., a macro network node) and UE 120d to facilitate communication between network node 110a and UE 120d. The network node 110 for relay communication may be referred to as a relay station, relay base station, relay network node, relay node, repeater, etc.

[0049] Wireless network 100 can be a heterogeneous network, comprising 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 effects on interference in wireless network 100. For example, macro network nodes may have high transmit power levels (e.g., 5 watts to 40 watts), while pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (e.g., 0.1 watts to 2 watts).

[0050] Network controller 130 may be coupled to or communicate with network node set 110, and may provide coordination and control for these network nodes 110. Network controller 130 may communicate with network nodes 110 via a backhaul or midhaul link. Network nodes 110 may also communicate directly with each other, or indirectly via a wireless or wired backhaul link. In some aspects, network controller 130 may be a CU or core network device, or may include a CU or core network device.

[0051] UE 120 may be distributed throughout the wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, access terminals, terminals, mobile stations, and / or subscriber units. UE 120 may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smartwatch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a GPS device, a UE function of a network node, and / or any other suitable device configured to communicate via wireless or wired media.

[0052] Some UEs 120 may be considered Machine-Type Communication (MTC) or Evolved or Enhanced Machine-Type Communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, unmanned aerial vehicles, remote devices, sensors, instruments, monitors, and / or location tags that can communicate with network nodes, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband IoT) devices. Some UEs 120 may be considered customer premises equipment. UEs 120 may be housed within a housing containing components such as processor components and / or memory components. In some examples, the processor components and memory components may be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0053] Generally, any number of wireless networks 100 can be deployed in a given geographical area. Each wireless network 100 can support a specific RAT and can operate on one or more frequencies. A RAT may be referred to as a radio technology, air interface, etc. A frequency may be referred to as a carrier, frequency channel, etc. Each frequency in a given geographical area can support a single RAT to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0054] 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 device 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.

[0055] Devices in Wireless Network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in Wireless Network 100 can communicate using one or more operating frequency bands. In 5G NR, two initial operating frequency bands have been designated as frequency ranges FR1 (410MHz to 7.125GHz) and FR2 (24.25GHz to 52.6GHz). It should be understood that although a portion of FR1 is greater than 6GHz, FR1 is generally (interchangeably) referred to as the “sub-6GHz” band in various documents and articles. Similar naming issues sometimes occur with FR2, which is generally (interchangeably) referred to as the “millimeter wave” band in documents and articles, although this is different from the Extremely High Frequency (EHF) band (30GHz to 300GHz) designated as a “millimeter wave” band by the International Telecommunication Union (ITU).

[0056] The frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR studies have identified the operating bands used for these mid-band frequencies as the frequency range designation FR3 (7.125 GHz to 24.25 GHz). Bands falling within FR3 can inherit FR1 and / or FR2 characteristics, thus effectively extending the features of FR1 and / or FR2 to mid-band frequencies. Furthermore, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating frequency bands have been identified as the frequency range designations FR4a or FR4-1 (52.6 GHz to 71 GHz), FR4 (52.6 GHz to 114.25 GHz), and FR5 (114.25 GHz to 300 GHz). Each of these higher frequency bands falls within the EHF band.

[0057] Considering the examples above, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" is used herein, it can broadly refer to frequencies below 6 GHz, within FR1, or including intermediate frequency bands. Furthermore, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" is used herein, it can broadly refer to frequencies that can include intermediate frequency bands, within FR2, FR4, FR4-a, or FR4-1 and / or FR5, or within the EHF band. Modifications to frequencies included in these operating frequency bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) are contemplated, and the techniques described herein are applicable to those modified frequency ranges.

[0058] In some aspects, the first network node (e.g., network node 110) may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may send at least one packet of a first PDU set to the second network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with the second PDU set; and send at least one packet of the second PDU set to the second network node during a second time period occurring after the first time period.

[0059] In some aspects, the second network node (e.g., network node 110) may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may transmit at least one packet of a first PDU set to the UE during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set; receive extracted PDU set information associated with the PDU set information from the UE; receive at least one packet of the second PDU set from the first network node during a second time period occurring after the first time period; and transmit at least one packet of the second PDU set in association with the extracted PDU set information. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.

[0060] In some aspects, the UE (e.g., UE 120) may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive at least one packet of a first PDU set from a network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set; transmit extracted PDU set information associated with the PDU set information to the network node; and receive at least one packet of the second PDU set in association with the extracted PDU set information and during a second time period occurring after the first time period. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0061] As indicated above, Figure 1 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 1 The examples described are different.

[0062] Figure 2 This is a diagram illustrating example 200 of communication between network node 110 and UE 120 in a wireless network 100 according to this disclosure. Network node 110 may be equipped with antenna sets 234a to 234t, such as T antennas (T≥1). UE 120 may be equipped with antenna sets 252a to 252r, such as R antennas (R≥1). Network node 110 of example 200 includes one or more radio frequency components, such as antenna 234 and modem 232. In some examples, network node 110 may include an interface, communication components, or another component facilitating communication with UE 120 or another network node. Some network nodes 110 may not include radio frequency components facilitating direct communication with UE 120, such as one or more CUs or one or more DUs.

[0063] At network node 110, transmitting processor 220 can receive data from data source 212 intended for use by UE 120 (or UE set 120). Transmitting processor 220 can select one or more modulation and decoding schemes (MCS) for UE 120 based at least in part on one or more channel quality indicators (CQIs) received from UE 120. Network node 110 can process (e.g., encode and modulate) the data for UE 120 based at least in part on the MCS selected for UE 120 and can provide data symbols for UE 120. Transmitting processor 220 can process system information (e.g., semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper-layer signaling) and provide overhead symbols and control symbols. Transmitting processor 220 can 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 signal (PSS) or secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., pre-decoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and can provide a set of output symbol streams (e.g., T output symbol streams) to a set 232 of corresponding modems (e.g., T modems) (shown as modems 232a to 232t). For example, each output symbol stream can be provided to a modulator component (shown as MOD) of modem 232. Each modem 232 can use a corresponding modulator component to process the corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modem 232 can also use a corresponding modulator component to process the output sample stream (e.g., convert to analog, amplify, filter, and / or up-convert) to obtain a downlink signal. Modems 232a to 232t can transmit a set of downlink signals (e.g., T downlink signals) via a set 234 of corresponding antennas (e.g., T antennas) (shown as antennas 234a to 234t).

[0064] At UE 120, an antenna set 252 (shown as antennas 252a to 252r) can receive downlink signals from network node 110 and / or other network nodes 110 and can provide a set of received signals (e.g., R received signals) to a modem set 254 (e.g., R modems) (shown as modems 254a to 254r). For example, each received signal can be provided to a demodulator component (shown as DEMOD) of modem 254. Each modem 254 can use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain an input sample. Each modem 254 can use the demodulator component to further process the input sample (e.g., for OFDM) to obtain a received symbol. A MIMO detector 256 can obtain the received symbols from modem 254, perform MIMO detection on the received symbols where applicable, and provide the detected symbols. The receiver processor 258 can process (e.g., demodulate and decode) the detected symbols, provide the decoded data for UE 120 to data sink 260, and provide the decoded control information and system information to controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine Reference Signal Received Power (RSRP) parameters, Received Signal Strength Indicator (RSSI) parameters, Reference Signal Received Quality (RSRQ) parameters, and / or CQI parameters, etc. In some examples, one or more components of UE 120 may be included in housing 284.

[0065] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, for example, in a core network. Network controller 130 may communicate with network node 110 via communication unit 294.

[0066] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include one or more antenna panels, one or more antenna groups, one or more collections of antenna elements, and / or one or more antenna arrays, etc., or may be included within one or more antenna panels, one or more antenna groups, one or more collections of antenna elements, and / or one or more antenna arrays, etc. Antenna panels, antenna groups, collections of antenna elements, and / or antenna arrays may include one or more antenna elements (within a single housing or multiple housings), collections of coplanar antenna elements, collections of non-coplanar antenna elements, and / or coupled to one or more transmitting and / or receiving components (such as...). Figure 2 One or more antenna elements (one or more components in a )

[0067] Each antenna element may include one or more sub-elements for radiating or receiving radio frequency signals. For example, a single antenna element may include a first sub-element that is cross-polarized with a second sub-element, which can be used to independently transmit cross-polarized signals. Antenna elements may include patch antennas, dipole antennas, or other types of antennas arranged in a linear pattern, a two-dimensional pattern, or another pattern. The spacing between antenna elements allows signals transmitted individually by the antenna elements at desired wavelengths to interact or interfere with each other (e.g., to form a desired beam). For example, given a desired wavelength or frequency range, the spacing may provide a quarter wavelength, half wavelength, or other fraction of the wavelength between adjacent antenna elements to allow interaction or interference of signals transmitted by individual antenna elements within that desired range.

[0068] Antenna elements and / or sub-elements can be used to generate a beam. A “beam” can specify a wireless signal to be transmitted, such as in the direction of a receiving device. A beam can include a directional signal, a direction associated with the signal, a set of directional resources associated with the signal (e.g., angle of arrival, horizontal direction, vertical direction), and / or a set of parameters indicating one or more aspects of the directional signal, the direction associated with the signal, and / or the set of directional resources associated with the signal.

[0069] As indicated above, antenna elements and / or sub-elements can be used to generate beams. For example, antenna elements can be individually selected or deselected for the transmission of signals (or multiple signals) by controlling the amplitude of one or more corresponding amplifiers. Beamforming involves generating a beam using multiple signals on different antenna elements, wherein one or more or all of these signals are phase-shifted relative to each other. The formed beam can carry physical or higher-level reference signals or information. As each of the multiple signals is radiated from its respective antenna element, the radiated signals interact with, interfere with (constructive and destructive interference), and are amplified to form the resulting beam. The shape (such as amplitude, width, and / or the presence of sidelobes) and orientation (such as the angle of the beam relative to the surface of the antenna array) can be dynamically controlled by modifying the phase shifts or phase offsets of the multiple signals relative to each other.

[0070] Beamforming can be used for communication between a UE and a network node, such as for millimeter-wave communication. In this case, the network node can provide the UE with a Transmit Configuration Indicator (TCI) state configuration, which indicates the beam that the UE can use, for example, to receive the Physical Downlink Shared Channel (PDSCH). The TCI state indicates the spatial parameters used for communication. For example, the TCI state for communication can identify the source signal (such as a synchronization signal block, channel state information reference signal, etc.) and the spatial parameters to be derived from the source signal for the purpose of transmitting or receiving communication. For example, the TCI state can indicate the Quasi-Co-location (QCL) type. The QCL type can indicate one or more spatial parameters to be derived from the source signal. The source signal can be referred to as the QCL source. The network node can indicate the active TCI state to the UE, which the UE can use to select the beam for receiving the PDSCH.

[0071] Beam indication can be or includes TCI state information elements, beam identifiers (IDs), spatial relationship information, TCI state IDs, closed-loop indexes, panel IDs, TRP IDs, and / or sounding reference signal (SRS) set IDs, etc. TCI state information elements (referred to herein as TCI states) can indicate information associated with beams such as downlink beams. For example, TCI state information elements can indicate TCI state identifiers (e.g., tci-StateID), QCL types (e.g., qcl-Type1, qcl-Type2, qcl-TypeA, qcl-TypeB, qcl-TypeC, qcl-TypeD, etc.), cell identifiers (e.g., ServCellIndex), bandwidth portion identifiers (bwp-Id), reference signal identifiers (such as CSI-RS (e.g., NZP-CSI-RS-ResourceId, SSB-Index, etc.)), etc. Spatial relationship information can similarly indicate information associated with uplink beams.

[0072] Beam indication can be a combined or separate downlink (DL) / uplink (UL) beam indication within a unified TCI framework. In some cases, the network may use at least UE-specific (unicast) downlink control information (DCI) to indicate a combined or separate DL / UL beam indication from an active TCI state, thereby supporting Layer 1 (L1) based beam indication. In some cases, existing DCI formats 1_1 and / or 1_2 may be reused for beam indication. The network may include support mechanisms for UE confirmation of successful decoding of the beam indication. For example, acknowledgment / negation acknowledgment (ACK / NACK) of a PDSCH scheduled via a DCI carrying the beam indication may also be used as an ACK for the DCI.

[0073] Beam indication can be provided for carrier aggregation (CA) scenarios. Within a unified TCI framework, the network can support public TCI state ID updates and activation to provide public QCL information and / or one or more public UL transmit spatial filters across a set of configured component carriers (CCs). This type of beam indication can be applied to in-band CA as well as joint DL / UL beam indication and individual DL / UL beam indication. A public TCI state ID can refer to a reference signal (RS) determined based on the TCI state indicated by the public TCI state ID, used to provide QCL type D indication and determine the UL transmit spatial filters across that set of configured CCs.

[0074] On the uplink, at UE 120, the transmit processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., for reporting including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 can generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 can 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 transmitted to network node 110. In some examples, the modem 254 of UE 120 may include a modulator and demodulator. In some examples, UE 120 includes a transceiver. This transceiver may include any combination of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to execute this document (e.g., reference). Figures 6 to 11 ( ) any aspect of the method described in the method.

[0075] At network node 110, uplink signals from UE 120 and / or other UEs may be received by antenna 234, processed by modem 232 (e.g., demodulator component of modem 232 (shown as DEMOD)), detected by MIMO detector 236, and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 may provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Network node 110 may include communication unit 244 and may communicate with network controller 130 via communication unit 244. Network node 110 may include scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communication. In some examples, modem 232 of network node 110 may include modulator and demodulator. In some examples, network node 110 includes 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 execute this document (e.g., reference). Figures 6 to 11 ( ) any aspect of the method described in the method.

[0076] The controller / processor 240 of network node 110, the controller / processor 280 of UE 120 and / or Figure 2 Any other component may execute one or more techniques associated with signaling related to the protocol data unit set information, as described in more detail elsewhere herein. For example, the controller / processor 240 of network node 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component that can be executed or bootstrap, for example Figure 7 Process 700 Figure 8 The process 800 Figure 9 The operation of process 900 and / or other processes as described herein. Memory 242 and memory 282 may store data and program code 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, one or more instructions may cause one or more processors, UE 120 and / or network node 110 to execute or bootstrap, for example, when executed by one or more processors of network node 110 and / or UE 120 (e.g., directly executed, or executed after compilation, transformation and / or interpretation). Figure 7 Process 700 Figure 8The process 800 Figure 9 The operation of process 900 and / or other processes as described herein. In some examples, the execution instructions may include run instructions, transform instructions, compile instructions and / or interpret instructions, etc.

[0077] In some aspects, the first network node (e.g., network node 110) includes components for sending at least one packet of a first PDU set to the second network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with the second PDU set; and / or components for sending at least one packet of the second PDU set to the second network node during a second time period that occurs after the first time period.

[0078] In some aspects, the second network node (e.g., network node 110) includes components for transmitting at least one packet of a first PDU set to the UE during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set; components for receiving extracted PDU set information associated with the PDU set information from the UE; components for receiving at least one packet of the second PDU set from the first network node during a second time period occurring after the first time period; and / or components for transmitting at least one packet of the second PDU set in association with the extracted PDU set information. Components for enabling the first network node and / or the second network node to perform the operations described herein may include one or more of, for example, a communication manager 150, a transmit processor 220, a TX MIMO processor 230, a modem 232, an antenna 234, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.

[0079] In some aspects, the UE (e.g., UE 120) includes components for receiving at least one packet of a first PDU set from a network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set; components for transmitting extracted PDU set information associated with the PDU set information to the network node; and / or components for receiving at least one packet of the second PDU set in association with the extracted PDU set information and during a second time period occurring after the first time period. Components 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.

[0080] In some respects, a single processor can perform all the functions described as being performed by that one or more processors. In other respects, the one or more processors can jointly perform a set of functions. For example, a first group(s) of the one or more processors can perform a first function described as being performed by that one or more processors, and a second group(s) of the one or more processors can perform a second function described as being performed by that one or more processors. The first group and the second group of processors can be the same group of processors or can be different groups of processors. The reference to "one or more processors" should be understood as referring to a combination of functions. Figure 2 Any one or more processors described. The reference to "one or more memories" should be understood to refer to any one or more memories of the corresponding device, such as those in conjunction with... Figure 2 The memory described. For example, a function described as being performed by one or more memories can be performed by the same subset of the one or more memories or by different subsets of the one or more memories.

[0081] Although Figure 2 The boxes in the diagram are illustrated as different components, but the functions described above with respect to these boxes may be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 may be performed by or under the control of controller / processor 280.

[0082] As indicated above, Figure 2 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 2 The examples described are different.

[0083] The deployment of communication systems such as 5G NR systems can be arranged in a variety of ways using various components or parts. In a 5G NR system or network, network nodes, network entities, network mobility elements, RAN nodes, core network nodes, network elements, base stations, or network equipment can be implemented in either a converged or decomposed architecture. For example, a base station (such as a Node B (NB), evolved NB (eNB), NR base station, 5G NB, access point (AP), TRP, or cell, etc.) or one or more units (or components) performing base station functionality can be implemented as a converged base station (also known as a standalone base station or monolithic base station) or a decomposed base station. A "network entity" or "network node" can 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 combinations thereof).

[0084] Aggregated base stations (e.g., aggregated network nodes) can 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 cell). Decomposed base stations (e.g., decomposed network nodes) can be configured to utilize a protocol stack that is physically or logically distributed across two or more cells (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, the CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other network nodes. DUs may be implemented to communicate with one or more RUs. Each of the CU, DU, and RU can also be implemented as a virtual cell, such as a Virtual Central Unit (VCU), a Virtual Distributed Unit (VDU), or a Virtual Radio Unit (VRU), etc.

[0085] Base station type operation or network design can take into account the aggregation characteristics of base station functionality. For example, decomposed base stations can be utilized in IAB networks, Open Radio Access Networks (O-RAN (such as network configurations initiated by the O-RAN Alliance)), or Virtualized Radio Access Networks (vRAN, also known as Cloud Radio Access Networks (C-RAN)) to facilitate the scaling of communication systems by separating base station functionality into one or more units that can be deployed individually. Decomposed base stations can include functionality implemented across two or more units at various physical locations, as well as functionality virtually implemented for at least one unit, which enables flexibility in network design. Each unit of a decomposed base station can be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0086] Figure 3 This is an illustration of an example disaggregated base station architecture 300 according to the present disclosure. The disaggregated base station architecture 300 may include a CU 310, which may communicate directly with the core network 320 via a backhaul link, or indirectly with the core network 320 via one or more disaggregated control units (such as 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 a corresponding midhaul link (such as via an F1 interface). Each DU 330 may communicate with one or more RUs 340 via a corresponding fronthaul link. Each RU 340 may communicate with one or more UEs 120 via a corresponding radio frequency (RF) access link. In some implementations, a UE 120 may be served simultaneously by multiple RUs 340.

[0087] Each unit in the cells (including CU 310, DU 330, RU 340), as well as the near-RT RIC 325, non-RT RIC 315, and SMO frame 305, may include or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via wired or wireless transmission media. Each unit in the cell, or an associated processor or controller providing instructions to one or more communication interfaces of the corresponding unit, may be configured to communicate with one or more units in other cells via transmission media. In some examples, each unit in the cell may include a wired interface and a wireless interface configured to receive signals or transmit signals to one or more units in other cells via a wired transmission media, and the wireless interface may include a receiver, transmitter, or transceiver (such as an RF transceiver) configured to receive signals or transmit signals to one or more units in other cells via a wireless transmission media, or both.

[0088] In some aspects, the CU 310 can host one or more higher-level 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 can be implemented using an interface configured to signal to other control functions managed by the CU 310. The CU 310 can be configured to handle user plane functions (e.g., Central Unit-User Plane (CU-UP) functions), control plane functions (e.g., Central Unit-Control Plane (CU-CP) functions), or combinations thereof. In some implementations, the CU 310 can be logically divided into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP units can communicate bidirectionally with the CU-CP units via an interface such as an E1 interface. The CU 310 can be implemented to communicate with the DU 330 for network control and signaling purposes, as needed.

[0089] Each DU 330 may correspond to a logical unit comprising one or more base station functions for controlling the operation of one or more RU 340s. In some aspects, the DU 330 may host one or more of the Radio Link Control (RLC) layer, Medium Access Control (MAC) layer, and one or more high physical (PHY) layers, at least in part, according to functional splits (such as those 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, and modulation and demodulation, etc. In some aspects, the DU 330 may also host one or more low PHY layers, such as those implemented by one or more modules for Fast Fourier Transform (FFT), Inverse FFT (iFFT), Digital Beamforming, or Physical Random Access Channel (PRACH) extraction and filtering, etc. Each layer (which may also be referred to as a module) may be implemented using an interface configured to communicate signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.

[0090] Each RU 340 can implement low-level functionality. In some deployments, an RU 340 controlled by a DU 330 can correspond to a logical node that hosts RF processing functions or low-PHY layer functions, such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, based on function splitting (e.g., function splitting defined by 3GPP) (such as low-level function splitting). In such architectures, each RU 340 can be operated to handle over-the-air (OTA) communications with one or more UEs 120. In some specific implementations, the real-time and non-real-time aspects of control plane and user plane communications with the RU 340 can be controlled by the corresponding DU 330. In some scenarios, this configuration allows each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.

[0091] The SMO framework 305 can be configured to support RAN deployment and provisioning of both non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO framework 305 can be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via operation and maintenance interfaces such as the O1 interface. For virtualized network elements, the SMO framework 305 can be configured to interact with cloud computing platforms such as the Open Cloud (O-Cloud) platform 390 to perform network element lifecycle management (such as instantiating virtualized network elements) via cloud computing platform interfaces such as the 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-RTTRIC 325. In some specific implementations, the SMO framework 305 may communicate with 4G RAN hardware aspects such as the Open eNB (O-eNB) 311 via the O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with each of one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 may also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305.

[0092] The non-RT RIC 315 can be configured to include logical functions that enable non-real-time control and optimization of RAN elements and resources, including artificial intelligence / machine learning (AI / ML) workflows for model training and updates, or policy-based guidance for applications / features in the near-RT RIC 325. The non-RT RIC 315 can be coupled to or communicate with the near-RT RIC 325, such as via an A1 interface. The near-RT RIC 325 can be configured to include logical functions that enable near real-time control and optimization of RAN elements and resources via an interface, such as an E2 interface, through data collection and actions, connecting one or more CU 310s, one or more DU 330s, or both, and O-eNBs to the near-RT RIC 325.

[0093] In some implementations, to generate AI / ML models 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. This information can be utilized by the near-RT RIC 325 and may be received from non-network data sources or network functions at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or 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 in performance and employ AI / ML models to perform corrective actions via the SMO framework 305 (such as reconfiguration via the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).

[0094] As indicated above, Figure 3 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 3 The examples described are different.

[0095] Figure 4 This is an illustration of example 400 of a network node 110 and a user plane protocol stack and a control plane protocol stack of a core network for communicating with a UE 120 according to this disclosure. In some aspects, network node 110 may include multiple network nodes 110. In some aspects, the protocol stack functionality of network node 110 may be distributed across multiple network nodes 110. For example, a first network node 110 may implement a first layer of the protocol stack, and a second network node 110 may implement a second layer of the protocol stack. The distribution of the protocol stack across network nodes (in this example of the distribution of the protocol stack across network nodes) may be based at least in part on functional partitioning, as described elsewhere herein. It should be understood that in some aspects, references to “network node 110” or “the network node 110” may refer to multiple network nodes.

[0096] On the user plane, UE 120 and network node 110 may include corresponding physical (PHY) layers, media access control (MAC) layers, radio link control (RLC) layers, packet data convergence protocol (PDCP) layers, and service data adaptation protocol (SDAP) layers. The user plane function (UPF) handles the transmission of user data between UE 120 and network node 110. On the control plane, UE 120 and network node 110 may include corresponding radio resource control (RRC) layers. Furthermore, UE 120 may include a NAS layer that communicates with the non-access stratum (NAS) layer of the access and management mobility functions (AMF). This AMF may be associated with the core network associated with network node 110, such as a 5G core network (5GC) or a next-generation radio access network (NG-RAN). The control plane function handles the transmission of control information between the UE and the core network. Generally, if the first layer is further away from the PHY layer than the second layer, the first layer is referred to as being above the second layer. For example, the PHY layer can be referred to as the lowest layer, and the SDAP / PDCP / RLC / MAC layers can be referred to as being above the PHY layer and below the RRC layer. Figure 4 The Application (APP) layer, not shown, may be higher than the SDAP / PDCP / RLC / MAC layers. In some cases, an entity may handle the services and functions of a given layer (e.g., a PDCP entity may handle the services and functions of the PDCP layer), although the description herein mentions that the layer itself handles these services and functions.

[0097] The RRC layer handles communications related to configuring and operating UE 120, such as: broadcasting system information related to the Access Layer (AS) and NAS; paging initiated by 5GC or NG-RAN; establishment, maintenance, and release of RRC connections between the UE and NG-RAN, including the addition, modification, and release of carrier aggregation, as well as the addition, modification, and release of dual connections; security functions, including key management; establishment, configuration, maintenance, and release of Signaling Radio Bearers (SRBs) and Data Radio Bearers (DRBs); mobility functions (e.g., handover and context passing, UE cell selection and reselection and control of cell selection and reselection, inter-RAT mobility); Quality of Service (QoS) management functions; UE measurement reporting and control of reports; detection and recovery from radio link failures; and NAS messaging between the NAS layer and the lower layers of UE 120. The RRC layer is often referred to as Layer 3 (L3).

[0098] The SDAP, PDCP, RLC, and MAC layers can be collectively referred to as Layer 2 (L2). Therefore, in some cases, the SDAP, PDCP, RLC, and MAC layers are referred to as sublayers of Layer 2. On the transmitting side (e.g., if UE 120 is transmitting uplink communication or network node 110 is transmitting downlink communication), the SDAP layer can receive data streams in the form of QoS streams. A QoS stream is associated with a QoS identifier and a QoS stream identifier (QFI), the QoS identifier identifying the QoS parameters associated with the QoS stream and the QoS stream identifier (QFI) identifying the QoS stream. Policies and charging parameters are implemented according to the QoS stream granularity. A QoS stream may include one or more Service Data Streams (SDFs), provided that each SDF of the QoS stream is associated with the same policies and charging parameters. In some aspects, the RRC / NAS layer can generate control information to be transmitted and can map this control information to one or more radio bearers for provision to the PDCP layer.

[0099] The SDAP or RRC / NAS layer can map QoS flows or control information to radio bearers. Therefore, it can be said that the SDAP layer handles QoS flows on the transmitting side. The SDAP layer can provide QoS flows to the PDCP layer via the corresponding radio bearer. The PDCP layer can map radio bearers to RLC channels. The PDCP layer can handle various services and functions on the user plane, including sequence numbering, header compression and decompression (if robust header compression is enabled), delivery of user data, reordering and replication detection (if in-order delivery to layers above the PDCP layer is required), PDCP Protocol Data Unit (PDU) routing (in the case of split bearers), retransmission, encryption and decryption of PDCP Service Data Unit (SDU), PDCP SDU dropping (e.g., according to PDCP drop timers, as described elsewhere in this document), PDCP reconstruction and data recovery for RLC Acknowledgment Mode (AM), and replication of PDCPPDUs. The PDCP layer can handle similar services and functions on the control plane, including sequence numbering, encryption, decryption, integrity protection, delivery of control plane data, replication detection, and replication of PDCP PDUs.

[0100] As mentioned, the PDCP layer (e.g., a PDCP entity) can be configured using a PDCP discard timer. The PDCP discard timer (sometimes indicated by a parameter of discardTimer configured such as PDCP-Config) can indicate the length of time, such as in milliseconds (ms). At the transmitter (e.g., UE 120 on the uplink or network node 110 on the downlink), the PDCP entity can receive packets, such as PDCP SDUs or data packets, from higher layers (e.g., RRC or SDAP). The PDCP entity can buffer packets in a transmit buffer for the length of the PDCP discard timer. For example, the PDCP entity can buffer packets in the transmit buffer until a status report indicating successful reception is received by the transmitter, or the PDCP discard timer expires. After the PDCP discard timer expires, the packet can be discarded (e.g., flushed from the buffer, dropped, or deleted). In some examples, a PDCP drop timer can be configured per PDCP PDU, such that all data (e.g., packets, PDCP SDUs) for a given PDCP PDU is buffered until a status report indicating successful reception is received is received, or the PDCP drop timer expires for a given PDCP PDU. Some techniques described herein provide PDCP drop timers that can be configured and used per set of PDUs (e.g., a set of PDCP PDUs), as described in more detail elsewhere in this document.

[0101] The PDCP layer can provide data in the form of PDCP PDUs to the RLC layer via the RLC channel. The RLC layer can handle the transmission of upper layer (e.g., PDCP) PDUs to the MAC and / or PHY layers, sequence numbering independent of PDCP sequence numbering, error correction via Automatic Repeat Request (ARQ), segmentation and resegmentation, SDU reassembly, RLC SDU discarding, and RLC reconstruction.

[0102] The RLC layer can provide the MAC layer with data mapped to logical channels. The services and functions of the MAC layer include mapping between logical channels and transport channels (used by the PHY layer as described below), multiplexing MACSDUs belonging to one or different logical channels into / from a transport block (TB) delivered to / from the physical layer on the transport channel, scheduling information reporting, error correction via Hybrid ARQ (HARQ), priority handling between UEs via dynamic scheduling, priority handling between logical channels of a UE via logical channel prioritization, and padding.

[0103] As mentioned, the RLC layer can handle SDU reassembly. Reassembly can be supported in unacknowledged and / or acknowledged modes. At the transmitter (e.g., network node 110 on the downlink or UE 120 on the uplink), the RLC layer can segment higher-layer data (e.g., RLC SDU) into sets of RLC PDUs and can provide these sets of RLC PDUs for transmission over the air interface. The receiver (e.g., UE 120 on the downlink or network node 110 on the uplink) can receive at least a portion of the RLC PDU set and can store the RLC PDU set in a reassembly buffer. The receiver can attempt to reassemble the RLC SDU from the received RLC PDUs, referred to herein as "performing reassembly". The receiver can perform reassembly according to a reassembly timer, which can be configured as part of the RLC-Config configuration. The receiver can start the reassembly timer when the first RLC PDU of a new RLC SDU is received and can reset the timer when all RLC PDUs of the new RLC SDU have been received. If the reassembly timer expires before all RLC PDUs of the RLC SDU have been received, the receiver can send a status report that triggers the retransmission of the lost RLC PDUs of the RLC SDU. The reassembly timer can be configured in conjunction with an RLC entity. Some techniques described herein provide an RLC entity that can be configured to correspond to PDU set parameters, such as PDU set importance parameters, as described elsewhere herein.

[0104] The MAC layer can encapsulate data from logical channels into data blocks (TBs) and can provide TBs to the PHY layer on one or more transport channels. The PHY layer can handle various operations related to the transmission of data signals, such as combining... Figure 2 In more detail, the PHY layer is often referred to as layer 1 (L1).

[0105] On the receiving side (e.g., if UE 120 is receiving downlink communication or network node 110 is receiving uplink communication), the operation can be similar to that described for the transmitting side, but in the reverse direction. For example, the PHY layer can receive the transport layer (TB) and provide the TB to the MAC layer on one or more transport channels. The MAC layer can map the transport channels to logical channels and provide data to the RLC layer via the logical channels. The RLC layer can map the logical channels to RLC channels and provide data to the PDCP layer via the RLC channels. The PDCP layer can map the RLC channels to radio bearers and provide data to the SDAP layer or RRC / NAS layer via the radio bearers.

[0106] Data can be transferred between layers in the form of PDUs and SDUs. An SDU is a data unit that has been passed from a layer or sublayer to the next layer. For example, the PDCP layer can receive PDCP SDUs. A given layer can then encapsulate the data unit into a PDU and pass that PDU to the next layer. For example, the PDCP layer can encapsulate a PDCP SDU into a PDCP PDU and pass that PDCP PDU to the RLC layer. The RLC layer can receive the PDCP PDU as an RLC SDU, encapsulate the RLC SDU into a set of RLC PDUs, and so on. In practice, a PDU carries at least a portion of an SDU as its payload.

[0107] Some of the techniques described in this document involve PDU sets. A PDU set includes one or more PDUs. One or more PDUs may carry the payload of information units generated at the application layer. As an example only, the information unit may include a video frame or a slice within a video frame, such as that generated or consumed by an extended reality (XR) application. An application associated with a transmitter may provide such information units to the network layer associated with the transmitter. The network layer may segment the information unit into a set of PDUs in the PDU set (e.g., network PDUs) and may provide an indication that the set of PDUs belongs to a single PDU set (e.g., within each PDU in the PDU set). A PDU set may correspond to an information unit. At the transmitter, the network layer may provide this set of PDUs to the RAN protocol stack (such as... Figure 4 The user plane protocol stack (e.g., the user plane protocol stack described above) is used for processing and transmission via the RAN, as described above. At the receiver, the RAN protocol stack (e.g., the user plane protocol stack described above) can receive wireless communications carrying PDUs (e.g., RLC PDUs) derived from the set of PDUs generated by the network layer. The RAN protocol stack can attempt to obtain the set of PDUs from the received wireless communications, and if successful, can provide the set of PDUs to the receiver's network layer as information elements for the receiver's application layer. Thus, although the RAN stack of the transmitter or receiver can process the PDUs in the set of PDUs as individual PDUs, the RAN stack can have some indication that the set of PDUs belongs to a set of PDUs. PDUs belonging to a set of PDUs can be associated with an indication that the PDUs belong to a set of PDUs (such as a PDU set sequence number).

[0108] All PDUs in a PDU set can share common QoS parameters, such as PDU set delay budget (PSDB) and / or PDU set error rate (PSER). PSDB indicates the time between the reception of the first PDU in the PDU set and the successful delivery of the last arriving PDU in the PDU set. PSER indicates the upper limit of the rate at which PDUs that have been processed by the transmitter of the link layer protocol but were not successfully delivered to the upper layer by the corresponding receiver.

[0109] Some PDU sets may require successful reception of all PDUs in the set for the underlying information units to be considered successfully recovered. For such PDU sets, if any PDU in the set is lost, the information units of the set may be considered unrecoverable. Such PDU sets are referred to herein as "all-or-nothing" PDU sets.

[0110] On the other hand, in some examples, if fewer than all PDUs are received or recovered from the PDU set, information units can be recovered from the PDU set. For example, PDUs in the PDU set can be encoded using an encoding scheme that provides recovery from one or more lost PDUs, such as Application Layer Forward Error Correction (FEC) coding. FEC coding provides redundancy information to the transmitted PDUs to detect and correct errors that may occur during transmission. FEC works by adding redundancy information in the form of check symbols to the original data, which can be used at the receiver to detect and correct errors. Depending on the redundancy ratio of the FEC coding, the application layer only needs an appropriate subset of PDUs from the PDU set to decode the PDU set. Such a PDU set is referred to herein as a "non-all-or-nothing" PDU set. Whether a PDU set is an all-or-nothing PDU set or a non-all-or-nothing PDU set can be indicated by a PDU set parameter corresponding to the PDU set, which is referred to herein as the PDU Set Integration Processing Indicator (PSIHI). For example, PSIHI can indicate whether the application layer needs all PDUs in the PDU set to use the PDU set (e.g., the underlying information units of the PDU set).

[0111] Different PDU sets can have different importance levels. For example, the decoding of a first PDU set (or multiple PDU sets) may depend on the data included in a second PDU set (e.g., due to the video coding or compression scheme associated with the underlying data units of the first and second PDU sets). Due to this dependency, the second PDU set may be considered more important to the application layer than the first PDU set. Applications (e.g., application functions) can indicate the importance level of a PDU set via a PDU set parameter, referred to herein as a PDU set importance parameter. In congestion situations, PDU sets associated with higher importance levels may be less likely to be dropped than PDU sets associated with lower importance levels. PDU sets associated with higher importance levels may also be prioritized for scheduling, thus having a higher probability of meeting delivery deadlines compared to PDU sets associated with lower importance levels. The PDU set importance parameter can be mapped to importance levels in any suitable manner. A set of PDUs associated with the same service flow but with different importance levels can be mapped to the same QoS flow and therefore can have the same PSDB, PSER and / or other QoS parameters (e.g., priority, guaranteed bit rate (GBR), maximum data burst volume (MDBV), etc.).

[0112] As indicated above, Figure 4 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 4 The examples described are different.

[0113] Figure 5 This is a diagram illustrating communication of a PDU set according to this disclosure. As shown, a first network node 502 can communicate with a second network node 504, and the second network node 504 can communicate with a UE 506. In some aspects, the first network node 502 can be, similar to, include an edge application server (EAS), and / or any other type of network node capable of sending PDU sets, or is included in the EAS and / or the network node. The second network node can be, similar to, include a base station (e.g., a gNB), and / or any other type of network node capable of receiving PDU sets and / or sending PDU sets to the UE, or is included in the base station and / or the network node. In some aspects, the first network node 502 and / or the second network node 504 can be, similar to, include... Figure 1 and Figure 2 Network node 110 and / or as depicted in Figure 3 The UE 506 may be, resemble, or include one or more components of the decomposed base station architecture 300 depicted herein, or may be incorporated into the network node and / or the one or more components thereof. In some respects, the UE 506 may be, resemble, or include... Figures 1 to 3 The UE 120 depicted in the text, or included in the UE.

[0114] As shown in the figure, the first network node 502 can send a first PDU set 508 (shown as "PDU set N") to the second network node 504. In some cases, PDU set information 510 (information about the PDU set) can be carried in the RTP header extension of one or more RTP packets in the RTP packet 512 of the PDU set 508 to allow the UPF 514 to extract the PDU set information 510 and transmit it to the second network node 504 (e.g., gNB) via the General Packet Radio Service (GPRS) Tunneling Protocol (GTP)-U header for resource allocation in the RAN. In some cases, PDU set information 510 includes PDU set sequence number (PSSN) (e.g., 10 bits), PDU set importance (PSI) (e.g., 4 bits), PDU set size (PSSize) (e.g., 24 bits), the last PDU (E) of the PDU set (e.g., 1 bit), and the end of the data burst (EDB) (e.g., 3 bits), and / or the PDU sequence number (PSN) within the PDU set (e.g., 6 bits), etc.

[0115] However, in some cases, RTP packets and / or RTP headers may be encrypted. For example, in the case of Secure RTP (SRTP), RTP packets and RTP headers may be encrypted. If the RTP header (e.g., including header extensions) is encrypted, UPF514 may not be able to access PDU set information 510 from the RTP header extension of RTP packet 512. In this case, because the second network node 504 may not know the PDU set information 510 before sending PDU set 508 to UE 506, the second network node 504 may allocate additional resources to ensure sufficient resources are allocated for sending PDU set 508. For example, without PDU set information, the second network node 504 may not know the PDU set size and / or the arrival time of the first packet 512 of PDU set 508. Therefore, encryption of RTP headers (and / or packets) may lead to inefficient resource allocation.

[0116] Some aspects of the techniques and apparatus described herein facilitate signaling of PDU set information by enabling network nodes to appropriately allocate resources for transmitting corresponding PDU sets to the UE. For example, in some aspects, PDU set information associated with PDU set N+1 516 may be included within an earlier transmitted PDU set (e.g., PDU set N 508). The PDU set information associated with PDU set N+1 516 may be predicted by the first network node 502. For example, the PDU information may be predicted in connection with a compression and / or encoding process associated with a previous PDU set (e.g., PDU set N 508).

[0117] In some aspects, to assist the second network node 504 in allocating resources to PDU set N+1 at an appropriate time (e.g., neither too early nor too late), PDU set information 510 may include information about the expected arrival time of PDU set N+1. For example, the expected arrival time may be indicated by the time interval between the last PDU (e.g., a packet) of PDU set N and the first PDU of PDU set N+1. The expected arrival time may be quantized, and in some aspects, the value zero may be one of the quantized values. In some aspects, multiple PDU sets may be sent in a data burst (e.g., multiple PDU sets may be sent back-to-back, or with very small time intervals between them). PDU set information 510 may include information associated with the expected arrival time of the data burst, and the aggregated PDU set size of the multiple PDU sets in the data burst. In some aspects, PDU set information 510 may include a predicted end of PDU set (E) for PDU set N+1 (e.g., having several PDUs). For example, the ending PDU of PDU set N+1 could be x PDUs following the first PDU in PDU set N+1. In some aspects, the predicted PDU set information can predict the end of a data burst (EDB) (e.g., the end of a data burst could be y PDUs following the first PDU in PDU set N+1). In some aspects, PDU set information 510 may include information about both PDU set N and PDU set N+1. For example, PDU set information 510 may include the PSSN, PSI, PSSize, and expected arrival time of PDU set N+1, and the PSSN and / or the end of the PDU set of PDU set N, etc.

[0118] As indicated above, Figure 5 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 5 The examples described are different.

[0119] Figure 6 This is a flowchart illustrating example 600 of signaling associated with PDU set information. As shown, a first network node 602 can communicate with a second network node 604, and the second network node 604 can communicate with a UE 606. In some aspects, the first network node 602 may be, resemble, or include... Figure 5 The first network node 502 depicted in the diagram, or included in the first network node. In some aspects, the second network node 604 may be, similar to, or include... Figure 5 The second network node 504 depicted in the diagram, or included in the second network node. In some aspects, the first network node 602 and / or the second network node 604 may be, similar to, or include... Figure 1 and Figure 2 Network node 110 and / or as depicted in Figure 3 The UE 606 may be, resemble, or include one or more components of the decomposed base station architecture 300 depicted herein, or may be incorporated into the network node and / or the one or more components. In some respects, the UE 606 may be, resemble, or include... Figures 1 to 3 The UE 120 depicted in the text, or included in the UE.

[0120] As indicated by reference numeral 608 in the accompanying drawings, a first network node 602 can transmit, and a second network node 604 can receive, at least one packet of a first PDU set. In some aspects, the first network node 602 can transmit at least one packet of the first PDU set during a first time period. At least one packet of the first PDU set may include PDU set information associated with a second PDU set. The second PDU set can be any PDU set to be transmitted after the first time period of transmitting the first PDU set. For example, the first PDU set may be PDU set N, and the second PDU set may be PDU set N+1, PDU set N+2, and / or PDU set N+3, etc. In some aspects, at least one packet of the first PDU set may indicate an identifier associated with the second PDU set. The identifier may include a PSSN associated with the second PDU set.

[0121] In some aspects, the PDU set information may indicate the PSSN associated with the second PDU set, the PSI associated with the second PDU set, the PSSize associated with the second PDU set, the EDB associated with the second PDU set, the PSN associated with the second PDU set, and / or the expected arrival time associated with the second PDU set, etc. In some aspects, since the PDU set information may include an estimate (e.g., an estimated PDU set size), the first network node 602 may update the indicated value when a more accurate estimate is obtained. For example, in some aspects, the PDU set information may indicate the size of the first PDU set, and the first network node 602 may determine the updated PDU set size associated with the second PDU set. The first network node 602 may send an indication of the updated PDU set size to the second network node 604. For example, the first network node 602 may send the first PDU set size in a first packet of the first PDU set and the updated PDU set size in a second packet of the first PDU set.

[0122] In some aspects, at least one packet of the first PDU set may be a dummy packet (e.g., a dedicated packet) used only for sending PDU set information. In some aspects, the PDU set may be a dummy PDU set. For example, at least one packet of the first PDU set may omit application data. In some aspects, at least one packet of the first PDU set may include padding bits in place of application data. In some other aspects, at least one packet of the first PDU set may include application data.

[0123] In some aspects, at least one packet of the first PDU set may include an encrypted portion comprising at least a portion of the PDU set information. In some aspects, at least one packet of the first PDU set may include at least one RTP packet. In some aspects, the RTP packet may be an SRTP packet. In some aspects, at least one RTP packet may include an RTP header extension element comprising at least a portion of the PDU set information. The RTP header extension element may be encrypted. In some aspects, at least one RTP packet may include an RTP payload comprising at least a portion of the PDU set information. This portion of the PDU set information may be encrypted (e.g., the payload or a portion thereof may be encrypted).

[0124] In some aspects, at least one packet of the first PDU set may include the last packet sent from the first PDU set. In this case, since the estimated PDU set information is closer in time to the processing (e.g., compression and / or encoding) of the second PDU set, the estimated PDU set information may be more accurate than the PDU set information estimated earlier (e.g., and sent in an earlier sent packet). In some aspects, at least one packet of the first PDU set may include the first packet sent from the first PDU set. In this case, if the PDU information is sent in a later sent packet, the second network node 604 may have more time to allocate resources than the second network node 604.

[0125] In some aspects, as indicated by reference numeral 610, the second network node 604 can transmit, and the UE 606 can receive, at least one packet of the first PDU set. In some aspects, the second network node 604 can serve multiple service flows (e.g., QoS flows) that the second network node 604 can identify, and the first PDU set can belong to one of the service flows. In this case, the second network node 604 can signal the association between the first PDU set and one of the service flows. For example, the association can be indicated using a QoS flow identifier (QFI) in the SDAP packet header carrying the first PDU set, since the first and second PDU sets can belong to the same QoS flow. As indicated by reference numeral 612, the UE 606 can extract PDU set information from at least one packet of the first PDU set and can extract the identifier of the associated service flow; and as indicated by reference numeral 614, the UE 606 can transmit, and the second network node 604 can receive, the PDU set information and the identifier of the associated service flow. In some aspects, UE 606 may transmit the complete set of extracted PDU set information, and in some other aspects, UE 606 may transmit one or more portions of the PDU set information. For example, in some aspects, UE 606 may transmit an update to previously transmitted PDU set information. The update may include estimates of one or more updates associated with a second PDU set and / or may include a set of update values ​​associated with an additional PDU set. In some aspects, UE 606 may transmit the PDU set information and / or updated PDU set information (e.g., an indication of the size of the updated PDU set) via a UE Assistive Information (UAI) RRC message.

[0126] As shown by reference numeral 616, the second network node 604 can allocate resources for the second PDU set. For example, the second network node 604 can allocate resources in association with PDU set information. As shown by reference numeral 618, the first network node 602 can transmit, and the second network node 604 can receive, the second PDU set. As shown by reference numeral 620, the second network node 604 can transmit, and the UE 602 can receive, the second PDU set. For example, the second network node 604 can transmit the second PDU set in association with the allocated resources.

[0127] As indicated above, Figure 6 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 6 The examples described are different.

[0128] Figure 7This is a diagram illustrating an example process 700 performed, for example, at a first network node or a device of a first network node, according to the present disclosure. Example process 700 is an example in which a device or a first network node (e.g., first network node 602) performs operations associated with signaling related to PDU set information.

[0129] like Figure 7 As shown, in some aspects, process 700 may include: sending at least one packet of a first PDU set to a second network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with the second PDU set (box 710). For example, the first network node (e.g., using...) Figure 10 The sending component 1004 and / or communication manager 1006 depicted herein may send at least one packet of the first PDU set to the second network node during a first time period. The at least one packet of the first PDU set includes PDU set information associated with the second PDU set, such as in combination with... Figure 6 As described.

[0130] like Figure 7 Further shown, in some aspects, process 700 may include: sending at least one packet of the second PDU set to the second network node during a second time period occurring after the first time period (box 720). For example, the first network node (e.g., using...) Figure 10 The sending component 1004 and / or communication manager 1006 described herein may send at least one packet of the second PDU set to the second network node during a second time period that occurs after the first time period, as in combination with Figure 6 As described.

[0131] Process 700 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 in this document.

[0132] In the first aspect, at least one grouping indicator of the first PDU set is an identifier associated with the second PDU set, such as in combination Figure 6 As described. In the second aspect, alone or in combination with the first aspect, the identifier includes the PSSN, as in combination. Figure 6 As described. In the third aspect, alone or in combination with one or more of the first and second aspects, the PDU set information indicates at least one of the following: the PSSN associated with the second PDU set, the PSI associated with the second PDU set, the PSSize associated with the second PDU set, the EDB associated with the second PDU set, or the PSN, as in combination. Figure 6As described. In the fourth aspect, alone or in combination with one or more of the first to third aspects, the PDU set information indicates the PDU set size, and process 700 includes: sending at least one additional packet of the first PDU set, the at least one additional packet indicating an updated PDU set size associated with the second PDU set, such as in combination with... Figure 6 As described.

[0133] In the fifth aspect, individually or in combination with one or more of the first to fourth aspects, at least one packet of the first PDU set includes at least one RTP packet, wherein the RTP packet may include SRTP packets, as combined Figure 6 As described. In the sixth aspect, alone or in combination with one or more of the first to fifth aspects, at least one RTP packet includes an RTP header extension element that includes at least a portion of PDU set information, such as in combination with... Figure 6 As described. In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the RTP header extension element is encrypted, as in combination with... Figure 6 As described. In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, at least one RTP packet includes an RTP payload that includes at least a portion of PDU set information, such as in combination with... Figure 6 As described. In the ninth aspect, this portion of the PDU collection information is encrypted, either alone or in combination with one or more of the first to eighth aspects, as described. Figure 6 As described.

[0134] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, at least one packet of the first PDU set includes the last packet sent from the first PDU set, such as in combination. Figure 6 As described. In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, at least one packet of the first PDU set includes the first packet sent from the first PDU set, as combined with Figure 6 As described. In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, at least one packet of the first PDU set includes an encrypted portion, which includes at least a portion of the PDU set information, such as in combination with... Figure 6 As described. In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, at least one group of the first PDU set omits application data, such as in combination. Figure 6 As described. In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, at least one group of the first PDU set includes padding bits to replace application data, as in combination with... Figure 6 As described.

[0135] although Figure 7 An example box of process 700 is shown, but in some respects, process 700 may include... Figure 7 The boxes depicted in the diagram may be fewer, different, or arranged differently than additional boxes. Alternatively, two or more boxes in the process 700 may be executed in parallel.

[0136] Figure 8 This is a diagram illustrating an example process 800 performed, for example, at a second network node or a device within a second network node, according to this disclosure. Example process 800 is an example in which a device or a second network node (e.g., second network node 604) performs operations associated with signaling related to PDU set information.

[0137] like Figure 8 As shown, in some aspects, process 800 may include: sending at least one packet of a first PDU set to the UE during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set (box 810). For example, a second network node (e.g., using...) Figure 10 The transmitting component 1004 and / or communication manager 1006 depicted herein may transmit at least one packet of a first PDU set to the UE during a first time period. The at least one packet of the first PDU set includes PDU set information associated with a second PDU set, such as in combination with... Figure 6 As described.

[0138] like Figure 8 Further, in some aspects, process 800 may include: receiving extracted PDU set information associated with PDU set information from the UE (box 820). For example, a second network node (e.g., using...) Figure 10 The receiving component 1002 and / or communication manager 1006 depicted in the diagram can receive extracted PDU set information associated with PDU set information from the UE, such as in combination with... Figure 6 As described.

[0139] like Figure 8 Further shown, in some aspects, process 800 may include: receiving at least one packet of a second PDU set from a first network node during a second time period occurring after the first time period (box 830). For example, the second network node (e.g., using...) Figure 10 The receiving component 1002 and / or communication manager 1006 depicted herein may receive at least one packet of the second PDU set from the first network node during a second time period that occurs after the first time period, as in combination with Figure 6 As described.

[0140] like Figure 8 Further, in some aspects, process 800 may include: sending at least one packet of a second PDU set in association with the extracted PDU set information (box 840). For example, a second network node (e.g., using...) Figure 10 The transmitting component 1004 and / or communication manager 1006 depicted in the diagram can transmit at least one packet of the second PDU set in association with the extracted PDU set information, such as in combination with... Figure 6 As described.

[0141] Process 800 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 in this document.

[0142] In the first aspect, at least one grouping indicator of the first PDU set is an identifier associated with the second PDU set, such as in combination Figure 6 As described. In the second aspect, alone or in combination with the first aspect, the identifier includes the PSSN, as in combination. Figure 6 As described. In the third aspect, alone or in combination with one or more of the first and second aspects, the PDU set information indicates at least one of the following: the PSSN associated with the second PDU set, the PSI associated with the second PDU set, the PSSize associated with the second PDU set, the EDB associated with the second PDU set, or the PSN, as in combination. Figure 6 As described. In the fourth aspect, alone or in combination with one or more of the first to third aspects, the PDU set information indicates the PDU set size, and process 800 includes: receiving from the UE an indication of an updated PDU set size associated with the second PDU set, such as in combination with... Figure 6 As described. In the fifth aspect, receiving an indication of the size of the updated PDU set, either alone or in combination with one or more of the first to fourth aspects, includes: receiving a UAI RRC message including an indication of the size of the updated PDU set, such as in combination with... Figure 6 As described.

[0143] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, at least one packet of the first PDU set includes at least one RTP packet, wherein the RTP packet may include SRTP packets, as in combination. Figure 6 As described. In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, at least one RTP packet includes an RTP header extension element that includes at least a portion of PDU set information, such as in combination with... Figure 6As described. In the eighth aspect, the RTP header extension element is encrypted, either alone or in combination with one or more of the first to seventh aspects, as described above. Figure 6 As described. In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, at least one RTP packet includes an RTP payload that includes at least a portion of PDU set information, such as in combination with... Figure 6 As described. In the tenth aspect, this portion of the PDU collection information is encrypted, either alone or in combination with one or more of the first to ninth aspects, as in combination. Figure 6 As described.

[0144] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, at least one packet of the first PDU set includes the last packet sent from the first PDU set, such as in combination. Figure 6 As described. In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, at least one packet of the first PDU set includes the first packet sent from the first PDU set, as combined Figure 6 As described. In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, at least one packet of the first PDU set includes an encrypted portion, which includes at least a portion of the PDU set information, such as in combination with... Figure 6 As described. In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, at least one group of the first PDU set omits application data, such as in combination. Figure 6 As described. In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, at least one group of the first PDU set includes padding bits to replace application data, as in combination with... Figure 6 As described.

[0145] although Figure 8 An example box of process 800 is shown, but in some respects, process 800 may include... Figure 8 The boxes depicted in the diagram may be fewer, different, or arranged differently than additional boxes. Alternatively, two or more boxes in the process 800 may be executed in parallel.

[0146] Figure 9 This is a diagram illustrating an example process 900 performed, for example, at a UE or a device of a UE, according to this disclosure. Example process 900 is an example in which a device or UE (e.g., UE 606) performs an operation associated with signaling related to PDU set information.

[0147] like Figure 9As shown, in some aspects, process 900 may include: receiving at least one packet of a first PDU set from a network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set (box 910). For example, the UE (e.g., using...) Figure 11 The receiving component 1102 and / or communication manager 1106 depicted herein can receive at least one packet of a first PDU set from a network node during a first time period. The at least one packet of the first PDU set includes PDU set information associated with a second PDU set, such as in combination with... Figure 6 As described.

[0148] like Figure 9 Further, in some aspects, process 900 may include: sending extracted PDU set information associated with PDU set information to a network node (box 920). For example, the UE (e.g., using...) Figure 11 The sending component 1104 and / or communication manager 1106 described herein can send extracted PDU set information associated with PDU set information to network nodes, such as in combination with Figure 6 As described.

[0149] like Figure 9 Further, in some aspects, process 900 may include: receiving at least one packet of a second PDU set in association with the extracted PDU set information and during a second time period occurring after the first time period (box 930). For example, the UE (e.g., using...) Figure 11 The receiving component 1102 and / or communication manager 1106 depicted herein may, in association with the extracted PDU set information, receive at least one packet of the second PDU set during a second time period occurring after the first time period, such as in combination with Figure 6 As described.

[0150] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere in this document.

[0151] In the first aspect, at least one grouping indicator of the first PDU set is an identifier associated with the second PDU set, such as in combination Figure 6 As described. In the second aspect, alone or in combination with the first aspect, the identifier includes the PSSN, as in combination. Figure 6As described. In the third aspect, alone or in combination with one or more of the first and second aspects, the PDU set information indicates at least one of the following: the PSSN associated with the second PDU set, the PSI associated with the second PDU set, the PSSize associated with the second PDU set, the EDB associated with the second PDU set, or the PSN, as in combination. Figure 6 As described. In the fourth aspect, alone or in combination with one or more of the first to third aspects, the PDU set information indicates the PDU set size, and process 900 includes: receiving from a network node at least one additional packet of the first PDU set, the at least one additional packet indicating an updated PDU set size associated with the second PDU set; and sending to the network node an indication of the updated PDU set size associated with the second PDU set, such as in combination with... Figure 6 As described. In the fifth aspect, sending an indication of the size of the updated PDU set, either alone or in combination with one or more of the first to fourth aspects, includes: sending a UAI RRC message including an indication of the size of the updated PDU set, such as in combination with... Figure 6 As described.

[0152] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, at least one packet of the first PDU set includes at least one RTP packet, wherein the RTP packet may include SRTP packets, as in combination. Figure 6 As described. In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, at least one RTP packet includes an RTP header extension element that includes at least a portion of PDU set information, such as in combination with... Figure 6 As described. In the eighth aspect, the RTP header extension element is encrypted, either alone or in combination with one or more of the first to seventh aspects, as described above. Figure 6 As described. In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, at least one RTP packet includes an RTP payload that includes at least a portion of PDU set information, such as in combination with... Figure 6 As described. In the tenth aspect, this portion of the PDU collection information is encrypted, either alone or in combination with one or more of the first to ninth aspects, as in combination. Figure 6 As described.

[0153] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, at least one packet of the first PDU set includes the last packet sent from the first PDU set, such as in combination. Figure 6As described. In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, at least one packet of the first PDU set includes the first packet sent from the first PDU set, as combined Figure 6 As described. In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, at least one packet of the first PDU set includes an encrypted portion, which includes at least a portion of the PDU set information, such as in combination with... Figure 6 As described. In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, at least one group of the first PDU set omits application data, such as in combination. Figure 6 As described. In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, at least one group of the first PDU set includes padding bits to replace application data, as in combination with... Figure 6 As described.

[0154] although Figure 9 An example box of process 900 is shown, but in some respects, process 900 may include... Figure 9 The boxes depicted in the diagram may be compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in the process 900 may be executed in parallel.

[0155] Figure 10 This is a diagram of an example device 1000 for wireless communication according to the present disclosure. Device 1000 may be a network node, or a network node may include device 1000. In some aspects, device 1000 includes a receiving component 1002, a transmitting component 1004, and / or a communication manager 1006, which can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, communication manager 1006 is combined with... Figure 1 The communication manager 150 is described. As shown, the device 1000 can communicate with another device 1008 (such as a UE or a network node (such as a CU, DU, RU or base station)) using the receiving component 1002 and the transmitting component 1004.

[0156] In some respects, device 1000 can be configured to perform the functions described herein. Figure 6 One or more operations described herein. Additionally or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as Figure 7 Process 700 Figure 8 The process 800 or a combination thereof. In some respects, Figure 10 The device 1000 and / or one or more components shown may include combinations Figure 2One or more components of the described network node. Additionally or alternatively, Figure 10 One or more components shown can be combined Figure 2 Implementation within one or more components described. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in one or more memories. For example, a component (or a portion thereof) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the function or operation of the component.

[0157] Receiver 1002 may receive communications from device 1008, such as reference signals, control information, data communications, or combinations thereof. Receiver 1002 may provide the received communications to one or more other components of device 1000. In some aspects, receiver 1002 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.), and may provide the processed signal to one or more other components of device 1000. In some aspects, receiver 1002 may include combinations of... Figure 2 The described network node includes one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receiver processors, one or more controllers / processors, one or more memories, or combinations thereof. In some aspects, receiver component 1002 and / or transmitter component 1004 may include or be included in a network interface. The network interface may be configured to acquire and / or output signals from device 1000 via one or more communication links, such as backhaul links, midhaul links, and / or fronthaul links.

[0158] Transmitting component 1004 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1008. In some aspects, one or more other components of device 1000 may generate communications and provide the generated communications to transmitting component 1004 for transmission to device 1008. In some aspects, transmitting component 1004 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 1008. In some aspects, transmitting component 1004 may include combinations of... Figure 2 The described network node includes one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or combinations thereof. In some aspects, the transmit component 1004 may co-located with the receive component 1002 in one or more transceivers.

[0159] The communication manager 1006 may support the operation of the receiving component 1002 and / or the transmitting component 1004. For example, the communication manager 1006 may receive information associated with configuring the reception of communications by the receiving component 1002 and / or the transmission of communications by the transmitting component 1004. Additionally or alternatively, the communication manager 1006 may generate control information and / or provide control information to the receiving component 1002 and / or the transmitting component 1004 to control the reception and / or transmission of communications.

[0160] The transmitting component 1004 may transmit at least one packet of a first PDU set to a second network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with the second PDU set. The transmitting component 1004 may also transmit at least one packet of the second PDU set to the second network node during a second time period occurring after the first time period.

[0161] The transmitting component 1004 can transmit at least one packet of a first PDU set to the UE during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set. The receiving component 1002 can receive extracted PDU set information associated with the PDU set information from the UE. The receiving component 1002 can receive at least one packet of the second PDU set from a first network node during a second time period occurring after the first time period. The transmitting component 1004 can transmit at least one packet of the second PDU set in association with the extracted PDU set information.

[0162] Figure 10 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 10 The components shown are compared to additional components, fewer components, different components, or components arranged in a different manner. Furthermore, Figure 10 The two or more components shown can be implemented within a single component, or Figure 10 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 10 The set (one or more) components shown are executable and described as being composed of Figure 10 The other set of components shown in the diagram performs one or more functions.

[0163] Figure 11This is a diagram of an example device 1100 for wireless communication according to the present disclosure. Device 1100 may be a UE, or a UE may include device 1100. In some aspects, device 1100 includes a receiving component 1102, a transmitting component 1104, and / or a communication manager 1106 that can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, the communication manager 1106 is combined with... Figure 1 The communication manager 140 is described. As shown, the device 1100 can communicate with another device 1108 (such as a UE or a network node (such as a CU, DU, RU or base station)) using the receiving component 1102 and the transmitting component 1104.

[0164] In some respects, device 1100 can be configured to perform the functions described herein. Figure 6 One or more operations described herein. Additionally or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as Figure 9 The process is 900. In some respects, Figure 11 The illustrated device 1100 and / or one or more components may include a combination Figure 2 One or more components of the described UE. Additionally or alternatively, Figure 11 One or more components shown can be combined Figure 2 Implementation within one or more components described. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in one or more memories. For example, a component (or a portion thereof) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the function or operation of the component.

[0165] Receiver 1102 may receive communications from device 1108, such as reference signals, control information, data communications, or combinations thereof. Receiver 1102 may provide the received communications to one or more other components of device 1100. In some aspects, receiver 1102 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications, and may provide the processed signals to one or more other components of device 1100. In some aspects, receiver 1102 may include combinations of... Figure 2 The described UE includes one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receiver processors, one or more controllers / processors, one or more memories, or combinations thereof.

[0166] Transmitting component 1104 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1108. In some aspects, one or more other components of device 1100 may generate communications and provide the generated communications to transmitting component 1104 for transmission to device 1108. In some aspects, transmitting component 1104 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 1108. In some aspects, transmitting component 1104 may include combinations of... Figure 2 The described UE may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or combinations thereof. In some aspects, the transmit component 1104 may co-located with the receive component 1102 in one or more transceivers.

[0167] The communication manager 1106 may support the operation of the receiving component 1102 and / or the transmitting component 1104. For example, the communication manager 1106 may receive information associated with configuring the reception of communications by the receiving component 1102 and / or the transmission of communications by the transmitting component 1104. Additionally or alternatively, the communication manager 1106 may generate control information and / or provide control information to the receiving component 1102 and / or the transmitting component 1104 to control the reception and / or transmission of communications.

[0168] The receiving component 1102 can receive at least one packet of a first PDU set from a network node during a first time period, the at least one packet of the first PDU set including PDU set information associated with a second PDU set. The transmitting component 1104 can transmit extracted PDU set information associated with the PDU set information to the network node. The receiving component 1102 can receive at least one packet of the second PDU set in association with the extracted PDU set information and during a second time period occurring after the first time period.

[0169] Figure 11 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 11 The components shown are compared to additional components, fewer components, different components, or components arranged in a different manner. Furthermore, Figure 11 The two or more components shown can be implemented within a single component, or Figure 11 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 11 The set (one or more) components shown are executable descriptions by Figure 11The other set of components shown performs one or more functions.

[0170] The following provides an overview of some aspects of this disclosure:

[0171] Aspect 1: A method of wireless communication performed by a first network node, the method comprising: transmitting at least one packet of a first set of Protocol Data Units (PDUs) to a second network node during a first time period, the at least one packet of the first set of PDUs including PDU set information associated with a second set of PDUs; and transmitting at least one packet of the second set of PDUs to the second network node during a second time period occurring after the first time period.

[0172] Aspect 2: According to the method of aspect 1, wherein the at least one grouping of the first PDU set indicates an identifier associated with the second PDU set.

[0173] Aspect 3: According to the method of aspect 2, the identifier includes a PDU set sequence number (PSSN).

[0174] Aspect 4: The method according to any one of Aspects 1 to 3, wherein the PDU set information indicates at least one of the following: PDU set sequence number (PSSN) associated with the second PDU set, PDU set importance (PSI) associated with the second PDU set, PDU set size (PSSize) associated with the second PDU set, end of data burst (EDB) associated with the second PDU set, or PDU sequence number (PSN) within the PDU set.

[0175] Aspect 5: According to the method of aspect 4, wherein the PDU set information indicates the PDU set size, the method further includes: sending at least one additional packet of the first PDU set, the at least one additional packet indicating an updated PDU set size associated with the second PDU set.

[0176] Aspect 6: The method according to any one of Aspects 1 to 5, wherein the at least one packet of the first PDU set includes at least one of Real-time Transport Protocol (RTP) packets or Secure RTP (SRTP) packets.

[0177] Aspect 7: According to the method of aspect 6, wherein the at least one RTP packet includes an RTP header extension element, the RTP header extension element including at least a portion of the PDU set information.

[0178] Aspect 8: According to the method described in aspect 7, the RTP header extension element is encrypted.

[0179] Aspect 9: The method according to any one of Aspects 6 to 8, wherein the at least one RTP packet includes an RTP payload, the RTP payload including at least a portion of the PDU set information.

[0180] Aspect 10: According to the method of aspect 8, the portion of the PDU set information is encrypted.

[0181] Aspect 11: The method according to any one of Aspects 1 to 10, wherein the at least one packet of the first PDU set includes the last packet sent from the first PDU set.

[0182] Aspect 12: The method according to any one of Aspects 1 to 11, wherein the at least one packet of the first PDU set includes the packet sent first from the first PDU set.

[0183] Aspect 13: The method according to any one of Aspects 1 to 12, wherein the at least one packet of the first PDU set includes an encrypted portion, the encrypted portion including at least a portion of the PDU set information.

[0184] Aspect 14: The method according to any one of Aspects 1 to 13, wherein the at least one group of the first PDU set omits application data.

[0185] Aspect 15: The method according to any one of Aspects 1 to 14, wherein the at least one group of the first PDU set includes padding bits in place of application data.

[0186] Aspect 16: A method of wireless communication performed by a second network node, the method comprising: transmitting at least one packet of a first set of Protocol Data Units (PDUs) to a user equipment (UE) during a first time period, the at least one packet of the first set of PDUs including PDU set information associated with a second set of PDUs; receiving extracted PDU set information associated with the PDU set information from the UE; receiving at least one packet of the second set of PDUs from a first network node during a second time period occurring after the first time period; and transmitting the at least one packet of the second set of PDUs in association with the extracted PDU set information.

[0187] Aspect 17: According to the method of aspect 16, wherein the at least one grouping of the first PDU set indicates an identifier associated with the second PDU set.

[0188] Aspect 18: The method according to aspect 17, wherein the identifier includes a PDU set sequence number (PSSN).

[0189] Aspect 19: The method according to any one of Aspects 16 to 18, wherein the PDU set information indicates at least one of the following: PDU set sequence number (PSSN) associated with the second PDU set, PDU set importance (PSI) associated with the second PDU set, PDU set size (PSSize) associated with the second PDU set, end of data burst (EDB) associated with the second PDU set, or PDU sequence number (PSN) within the PDU set.

[0190] Aspect 20: The method according to aspect 19, wherein the PDU set information indicates the PDU set size, the method further comprising: receiving from the UE an indication of an updated PDU set size associated with the second PDU set.

[0191] Aspect 21: According to the method of aspect 20, receiving the indication of the size of the updated PDU set comprises: receiving a UE Assistance Information (UAI) Radio Resource Control (RRC) message including the indication of the size of the updated PDU set.

[0192] Aspect 22: The method according to any one of Aspects 16 to 21, wherein the at least one packet of the first PDU set includes at least one of Real-time Transport Protocol (RTP) packets or Secure RTP (SRTP) packets.

[0193] Aspect 23: According to the method of aspect 22, wherein the at least one RTP packet includes an RTP header extension element, the RTP header extension element including at least a portion of the PDU set information.

[0194] Aspect 24: According to the method of aspect 23, wherein the RTP header extension element is encrypted.

[0195] Aspect 25: The method according to any one of Aspects 22 to 24, wherein the at least one RTP packet includes an RTP payload, the RTP payload including at least a portion of the PDU set information.

[0196] Aspect 26: According to the method of aspect 25, the portion of the PDU set information is encrypted.

[0197] Aspect 27: The method according to any one of Aspects 16 to 26, wherein the at least one packet of the first PDU set includes the last packet sent from the first PDU set.

[0198] Aspect 28: The method according to any one of Aspects 16 to 27, wherein the at least one packet of the first PDU set includes the first packet sent by the first PDU set.

[0199] Aspect 29: The method according to any one of Aspects 16 to 28, wherein the at least one packet of the first PDU set includes an encrypted portion, the encrypted portion including at least a portion of the PDU set information.

[0200] Aspect 30: The method according to any one of aspects 16 to 29, wherein the at least one group of the first PDU set omits application data.

[0201] Aspect 31: The method according to any one of Aspects 16 to 30, wherein the at least one group of the first PDU set includes padding bits in place of application data.

[0202] Aspect 32: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving at least one packet of a first set of protocol data units (PDUs) from a network node during a first time period, the at least one packet of the first set of PDUs including PDU set information associated with a second set of PDUs; transmitting extracted PDU set information associated with the PDU set information to the network node; and receiving at least one packet of the second set of PDUs associated with the extracted PDU set information and occurring after the first time period during a second time period.

[0203] Aspect 33: According to the method of aspect 32, wherein the at least one grouping of the first PDU set indicates an identifier associated with the second PDU set.

[0204] Aspect 34: According to the method of aspect 33, the identifier includes a PDU set sequence number (PSSN).

[0205] Aspect 35: The method according to any one of Aspects 32 to 34, wherein the PDU set information indicates at least one of the following: PDU set sequence number (PSSN) associated with the second PDU set, PDU set importance (PSI) associated with the second PDU set, PDU set size (PSSize) associated with the second PDU set, end of data burst (EDB) associated with the second PDU set, or PDU sequence number (PSN) within the PDU set.

[0206] Aspect 36: The method according to aspect 35, wherein the PDU set information indicates the PDU set size, the method further comprising: receiving from the network node at least one additional packet of the first PDU set, the at least one additional packet indicating an updated PDU set size associated with the second PDU set; and sending to the network node an indication of the updated PDU set size associated with the second PDU set.

[0207] Aspect 37: According to the method of aspect 36, wherein sending the indication of the size of the updated PDU set comprises: sending a UE Assistance Information (UAI) Radio Resource Control (RRC) message including the indication of the size of the updated PDU set.

[0208] Aspect 38: The method according to any one of Aspects 32 to 37, wherein the at least one packet of the first PDU set includes at least one Real-Time Transport Protocol (RTP) packet, wherein the RTP packet may include a Secure RTP (SRTP) packet.

[0209] Aspect 39: According to the method of aspect 38, wherein the at least one RTP packet includes an RTP header extension element, the RTP header extension element including at least a portion of the PDU set information.

[0210] Aspect 40: The method according to aspect 39, wherein the RTP header extension element is encrypted.

[0211] Aspect 41: The method according to any one of Aspects 38 to 40, wherein the at least one RTP packet includes an RTP payload, the RTP payload including at least a portion of the PDU set information.

[0212] Aspect 42: According to the method of aspect 41, the portion of the PDU set information is encrypted.

[0213] Aspect 43: The method according to any one of aspects 32 to 42, wherein the at least one packet of the first PDU set includes the last packet sent from the first PDU set.

[0214] Aspect 44: The method according to any one of aspects 32 to 43, wherein the at least one packet of the first PDU set includes the first packet sent by the first PDU set.

[0215] Aspect 45: The method according to any one of Aspects 32 to 44, wherein the at least one packet of the first PDU set includes an encrypted portion, the encrypted portion including at least a portion of the PDU set information.

[0216] Aspect 46: The method according to any one of aspects 32 to 45, wherein the at least one group of the first PDU set omits application data.

[0217] Aspect 47: The method according to any one of Aspects 32 to 46, wherein the at least one group of the first PDU set includes padding bits in place of application data.

[0218] Aspect 48: An apparatus for wireless communication at a device, the apparatus comprising: one or more processors; one or more memories coupled to the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method according to one or more of aspects 1 to 15.

[0219] Aspect 49: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors being configured to cause the device to perform the method according to one or more of aspects 1 to 15.

[0220] Aspect 50: 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 15.

[0221] Aspect 51: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by one or more processors to perform the method according to one or more of aspects 1 to 15.

[0222] Aspect 52: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 1 to 15.

[0223] Aspect 53: A device for wireless communication, the device including a processing system comprising one or more processors and one or more memories coupled to the one or more processors, the processing system being configured to cause the device to perform the method according to one or more of aspects 1 to 15.

[0224] Aspect 54: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors being individually or collectively configured to cause the device to perform one or more of the methods according to aspects 1 to 15.

[0225] Aspect 55: An apparatus for wireless communication at a device, the apparatus comprising: one or more processors; one or more memories coupled to the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform one or more of the methods according to aspects 16 to 31.

[0226] Aspect 56: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors being configured to cause the device to perform the method according to one or more of aspects 16 to 31.

[0227] Aspect 57: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 16 to 31.

[0228] Aspect 58: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by one or more processors to perform the method according to one or more of aspects 16 to 31.

[0229] Aspect 59: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 16 to 31.

[0230] Aspect 60: A device for wireless communication, the device including a processing system comprising one or more processors and one or more memories coupled to the one or more processors, the processing system being configured to cause the device to perform the method according to one or more of aspects 16 to 31.

[0231] Aspect 61: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors being individually or collectively configured to cause the device to perform one or more of the methods according to aspects 16 to 31.

[0232] Aspect 62: An apparatus for wireless communication at a device, the apparatus comprising: one or more processors; one or more memories coupled to the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method according to one or more of aspects 32 to 47.

[0233] Aspect 63: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors being configured to cause the device to perform the method according to one or more of aspects 32 to 47.

[0234] Aspect 64: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 32 to 47.

[0235] Aspect 65: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by one or more processors to perform the method according to one or more of aspects 32 to 47.

[0236] Aspect 66: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 32 to 47.

[0237] Aspect 67: A device for wireless communication, the device including a processing system comprising one or more processors and one or more memories coupled to the one or more processors, the processing system being configured to cause the device to perform the method according to one or more of aspects 32 to 47.

[0238] Aspect 68: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors being individually or collectively configured to cause the device to perform one or more of the methods according to aspects 32 to 47.

[0239] While the foregoing disclosure provides examples and descriptions, it is not intended to be exhaustive or to limit aspects to the precise forms disclosed. Modifications and variations can be made based on the foregoing disclosure, or from various aspects of practice.

[0240] As used herein, the term "component" is intended to be interpreted broadly as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, "software" should be interpreted broadly as meaning instructions, instruction sets, code, code segments, program code, 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 hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented through various forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limiting in any way. Therefore, no specific software code is referred to in this document to describe the operation and behavior of the systems and / or methods, as those skilled in the art will understand that the software and hardware can be designed, at least in part, based on the descriptions herein, to implement the systems and / or methods.

[0241] Hardware and data processing means for implementing the various exemplary logic, logic blocks, modules, and circuits described herein can be implemented or executed using general-purpose single-chip or multi-chip processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor can be a microprocessor, or any conventional processor, controller, microcontroller, or state machine. A processor can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration. In some aspects, specific processes and methods can be performed by circuitry dedicated to a given function.

[0242] As used in this article, depending on the context, "meeting the threshold" can mean a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0243] Although specific combinations of features are set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combined in ways not specifically set forth in the claims and / or not disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with each other claim in the set of claims. As used herein, the phrase “at least one of” in the list of items refers to any combination of these entries, including 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, as well as any combination having 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).

[0244] No element, action, or instruction used herein should be construed as essential or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and are interchangeable with “one or more.” Similarly, as used herein, the article “the” is intended to include one or more items mentioned in connection with the article “the” and is interchangeable with “one or more.” Furthermore, as used herein, the terms “group” and “cluster” are intended to include one or more entries and are interchangeable with “one or more.” If only one item is desired, the phrase “only one” or similar terminology will be used. Additionally, as used herein, the terms “having” and the like are intended to be open-ended terms that do not limit the elements they modify (e.g., an element “having” A may also have B). Furthermore, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Additionally, as used herein, the term “or” is intended to be open-ended when used in a series and is interchangeable with “and / or” unless otherwise explicitly stated (e.g., if used in conjunction with “any” or “only one”).

Claims

1. An apparatus for wireless communication at a first network node, the apparatus comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors, individually or collectively, being configured to cause the apparatus to: transmit, to a second network node, at least one packet of a first set of protocol data units (PDUs) during a first time period, the at least one packet of the first set of PDUs including PDU set information associated with a second set of PDUs; and transmit, to the second network node, at least one packet of the second set of PDUs during a second time period occurring after the first time period.

2. The apparatus of claim 1, wherein the at least one packet of the first set of PDUs indicates an identifier associated with the second set of PDUs.

3. The apparatus of claim 2, wherein the identifier comprises a PDU set sequence number (PSSN).

4. The apparatus of claim 1, wherein the PDU set information indicates at least one of: a PDU set sequence number (PSSN) associated with the second set of PDUs, a PDU set significance (PSI) associated with the second set of PDUs, a PDU set size (PSSize) associated with the second set of PDUs, an end of data burst (EDB) associated with the second set of PDUs, or a PDU sequence number (PSN) within the set of PDUs.

5. The apparatus of claim 4, wherein the PDU set information indicates the PDU set size, and wherein the one or more processors are further configured to cause the apparatus to transmit at least one additional packet of the first set of PDUs, the at least one additional packet indicating an updated PDU set size associated with the second set of PDUs.

6. The apparatus of claim 1, wherein the at least one packet of the first set of PDUs comprises at least one of a real-time transport protocol (RTP) packet or a secure RTP (SRTP) packet.

7. The apparatus of claim 6, wherein the at least one RTP packet includes an RTP header extension element, the RTP header extension element including at least a portion of the PDU set information, wherein the RTP header extension element is encrypted.

8. The apparatus of claim 6, wherein the at least one RTP packet includes an RTP payload, the RTP payload including at least a portion of the PDU set information, wherein the portion of the PDU set information is encrypted.

9. The apparatus of claim 1, wherein the at least one packet of the first set of PDUs comprises at least one of a last transmitted packet of the first set of PDUs or a first transmitted packet of the first set of PDUs.

10. The apparatus of claim 1, wherein the at least one packet of the first set of PDUs comprises an encrypted portion, the encrypted portion comprising at least a portion of the PDU set information.

11. The apparatus of claim 1, wherein the at least one packet of the first set of PDUs omits application data.

12. The apparatus of claim 1, wherein the at least one packet of the first set of PDUs comprises padding bits in place of application data.

13. An apparatus for wireless communication at a second network node, the apparatus comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors, individually or collectively, being configured to cause the apparatus to: transmit, to a user equipment (UE), at least one packet of a first set of protocol data units (PDUs) during a first time period, the at least one packet of the first set of PDUs comprising PDU set information associated with a second set of PDUs; receive, from the UE, extracted PDU set information associated with the PDU set information; receive, from a first network node, at least one packet of the second set of PDUs during a second time period occurring after the first time period; and transmit the at least one packet of the second set of PDUs in association with the extracted PDU set information.

14. The apparatus of claim 13, wherein the at least one packet of the first set of PDUs indicates an identifier associated with the second set of PDUs.

15. The apparatus of claim 13, wherein the PDU set information indicates at least one of: a PDU set sequence number (PSSN) associated with the second set of PDUs, a PDU set significance (PSI) associated with the second set of PDUs, a PDU set size (PSSize) associated with the second set of PDUs, an end of data burst (EDB) associated with the second set of PDUs, or a PDU sequence number (PSN) within the PDU set.

16. The apparatus of claim 13, wherein the at least one packet of the first set of PDUs comprises at least one of a real-time transport protocol (RTP) packet or a secure RTP (SRTP) packet.

17. The apparatus of claim 16, wherein the at least one RTP packet comprises at least one of: an encrypted RTP header extension element comprising at least a portion of the PDU set information, or an encrypted RTP payload comprising at least a portion of the PDU set information.

18. The apparatus of claim 13, wherein the at least one packet of the first set of PDUs comprises at least one of a last transmitted packet of the first set of PDUs or a first transmitted packet of the first set of PDUs. ​ 19. The apparatus of claim 13, wherein the at least one packet of the first set of PDUs comprises an encrypted portion, the encrypted portion comprising at least a portion of the PDU set information.

20. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors, individually or collectively, configured to cause the apparatus to: receive, from a network node, at least one packet of a first set of protocol data units (PDUs) during a first time period, the at least one packet of the first set of PDUs comprising PDU set information associated with a second set of PDUs; transmit, to the network node, extracted PDU set information associated with the PDU set information; and receive, in association with the extracted PDU set information and during a second time period occurring after the first time period, at least one packet of the second set of PDUs.

21. The apparatus of claim 20, wherein the at least one packet of the first set of PDUs indicates an identifier associated with the second set of PDUs.

22. The apparatus of claim 21, wherein the identifier comprises a PDU set sequence number (PSSN).

23. The apparatus of claim 22, wherein the PDU set information indicates at least one of: a PDU set sequence number (PSSN) associated with the second set of PDUs, a PDU set significance (PSI) associated with the second set of PDUs, a PDU set size (PSSize) associated with the second set of PDUs, an end of data burst (EDB) associated with the second set of PDUs, or a PDU sequence number (PSN) within the PDU set.

24. The apparatus of claim 23, wherein the PDU set information indicates the PDU set size, and wherein the one or more processors are further configured to cause the apparatus to: receive, from the network node, at least one additional packet of the first set of PDUs, the at least one additional packet indicating an updated PDU set size associated with the second set of PDUs; and transmit, to the network node, an indication of the updated PDU set size associated with the second set of PDUs.

25. The apparatus of claim 24, wherein to cause the apparatus to transmit the indication of the updated PDU set size, the one or more processors are configured to cause the apparatus to transmit a UE assistance information (UAI) radio resource control (RRC) message comprising the indication of the updated PDU set size.

26. The apparatus of claim 22, wherein the at least one packet of the first set of PDUs comprises at least one of a real-time transport protocol (RTP) packet or a secure RTP (SRTP) packet.

27. The apparatus of claim 26, wherein the at least one RTP packet comprises at least one of: an encrypted RTP header extension element comprising at least a portion of the PDU set information, or an encrypted RTP payload comprising at least a portion of the PDU set information.

28. The apparatus of claim 22, wherein the at least one packet of the first PDU set comprises an encrypted portion comprising at least a portion of the PDU set information.

29. A method of wireless communication performed by a user equipment (UE), the method comprising: receiving, from a network node, at least one packet of a first protocol data unit (PDU) set during a first time period, the at least one packet of the first PDU set comprising PDU set information associated with a second PDU set; sending, to the network node, extracted PDU set information associated with the PDU set information; and receiving, in association with the extracted PDU set information and during a second time period occurring after the first time period, at least one packet of the second PDU set.

30. The method of claim 29, wherein the at least one packet of the first PDU set comprises an encrypted portion comprising at least a portion of the PDU set information.

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