Support of data plane protocol
UE optimizes logged data packet generation and transmission based on network and radio conditions, addressing inefficiencies in data plane protocols by adjusting sizes and implementing segmentation, thereby enhancing transmission efficiency.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- LENOVO (BEIJING) LTD
- Filing Date
- 2025-09-23
- Publication Date
- 2026-07-30
AI Technical Summary
Existing wireless communication systems face challenges in efficiently managing and transmitting logged data packets due to varying network and radio conditions, leading to inefficiencies in data plane protocol handling.
User equipment (UE) generates packets of logged data based on specific sizes requested by the network, available transmission capacity, or layer thresholds, and transmits them to a base station, with mechanisms for segmentation and security protection, ensuring efficient data handling across different radio access technologies.
This approach enhances transmission efficiency by optimizing packet sizes and handling procedures, improving data transmission under low network load and good radio conditions.
Smart Images

Figure CN2025123334_30072026_PF_FP_ABST
Abstract
Description
SUPPORT OF DATA PLANE PROTOCOLTECHNICAL FIELD
[0001] The present disclosure relates to wireless communications, and more specifically to user equipment (UE) , base station and methods supporting data plane protocol.BACKGROUND
[0002] A wireless communications system may include one or multiple network communication devices, such as base stations, which may be otherwise known as an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. Each network communication devices, such as a base station may support wireless communications for one or multiple user communication devices, which may be otherwise known as user equipment (UE) , or other suitable terminology. The wireless communications system may support wireless communications with one or multiple user communication devices by utilizing resources of the wireless communication system (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) . Additionally, the wireless communications system may support wireless communications across various radio access technologies including third generation (3G) radio access technology, fourth generation (4G) radio access technology, fifth generation (5G) radio access technology, among other suitable radio access technologies beyond 5G (e.g., sixth generation (6G) ) .
[0003] A data plane may bed introduce for data collection. One or multiple types of logged data may be carried on one radio bearer (RB) . For example, a radio bearer is associated with a type of logged data. In this example, there will be a lot of radio bearers to consumed and maintained. For another example, a radio bearer is associated with multiple types of logged data. Therefore, there is a need to study how large a packet comprising the logged data is generated.SUMMARY
[0004] The present disclosure relates to UE, base station and methods supporting data plane protocol. With the present disclosure, at least one type of logged data may be generated with a proper size. This could help achieve high transmission efficiency based on load of network and radio condition of UE in case of low load of network and good radio condition.
[0005] Some implementations of a UE described herein may include a processor and a transceiver coupled to the processor, wherein the processor is configured to: generate a packet comprising at least one type of logged data based on at least one of the following: a first size requested by a network node, a second size of the logged data available for transmission, a first threshold, a maximum size supported by a lower layer of the UE, or a maximum allowed size of the lower layer of the UE; and transmit the packet via the transceiver to a base station.
[0006] In some implementations, the processor is configured to generate the packet based on determining at least one of the following: a request for the at least one type of logged data is received, a length of a buffer for the at least one type of logged data reaches a second threshold, the buffer for the at least one type of logged data is full, there is at least one remaining resource allocated or an available resource for transmission of the packet, or periodicity for generating the packet is met.
[0007] In some implementations, the UE is in a radio resource control (RRC) idle state and the processor is further configured to trigger an RRC connection setup procedure for transmission of the packet. In some implementations, the UE is in an RRC inactive state and the processor is further configured to trigger an RRC connection resume procedure for transmission of the packet.
[0008] In some implementations, the processor is configured to generate the packet based on multiple items or entries of the logged data associated with a logged configuration identity for a cell. In some implementations, the processor is configured to generate the packet based on one item or entry of the logged data.
[0009] In some implementations, the processor is configured to generate the packet based on a logged variable for the UE, wherein the logged variable comprises one or more items or entries of the logged data.
[0010] In some implementations, the processor is configured to generate the packet based on a variable for the UE, wherein the variable comprises logged layer 1 measurements information for network data collection in accordance with a group of one or more CSI resources for which the UE logs associated L1 radio measurements.
[0011] In some implementations, the UE comprises a data collection entity, and the data collection entity is not configured to buffer the packet for retransmission after delivering the packet to the lower layer, and the data collection entity is configured to maintain the variable.
[0012] In some implementations, the UE comprises a data collection entity, and the data collection entity is configured to buffer the packet for retransmission after delivering the packet to the lower layer.
[0013] In some implementations, the data collection entity is further configured to perform one of the following: discarding the packet upon successful delivery of the packet to the lower layer and receiving a confirmation from the lower layer; discarding the packet upon expiration of a discard timer for the packet; or discarding the packet upon receiving a successful response from a peer data collection entity.
[0014] In some implementations, the data collection entity is further configured to based on determining that an indication is received, perform retransmission of the packet, wherein the indication indicates the packet is missing.
[0015] In some implementations, the indication is received from the lower layer or a peer data collection entity.
[0016] Some implementations of a UE described herein may include a processor and a transceiver coupled to the processor, wherein the processor is configured to: assign, at a packet data convergence protocol (PDCP) entity of the UE, a sequence number (SN) for a packet for at least one type of logged data or for a segment of the packet; and perform security protection for the packet or for the segment based on the SN if configured with security protection.
[0017] In some implementations, the PDCP entity is further configured to: based on determining that a size of the packet is greater than a first size supported by one PDCP service data unit (SDU) , perform segmentation of the packet to generate at least one segment, and determine information related to the segmentation.
[0018] In some implementations, the PDCP entity is configured to perform segmentation of the packet after performing security protection for the packet.
[0019] In some implementations, the information related to the segmentation comprises at least one of the following: a first indication indicating whether a PDCP protocol data unit (PDU) comprises the packet or a start, middle, last segment of the packet; or an offset between the segment and the start segment.
[0020] In some implementations, the PDCP entity is configured to assign the SN for the packet by: assigning a single SN for the at least one segment.
[0021] In some implementations, the PDCP entity is configured to perform segmentation of the packet before performing security protection for the segment.
[0022] In some implementations, the information related to the segmentation comprises at least one of the following: a second indication indicating whether the packet is segmented at beginning and / or at an end of the packet.
[0023] In some implementations, the PDCP entity is configured to assign the SN for the packet by: assigning a unique SN for each of the at least one segment.
[0024] Some implementations of a communication device described herein may include a processor and a transceiver coupled to the processor, wherein the processor is configured to: perform a layer 2 (L2) handling procedure for each of multiple types of logged data based on configurations, wherein the configurations comprise a first configuration for a first type of logged data among the multiple types of logged data.
[0025] In some implementations, the first configuration comprises at least one of the following: a discard timer a logical channel priority, a priority of the first type of logged data, a bucket size duration (BSD) , a prioritized bit rate (PBR) , logical channel restriction a reordering timer, inter-type out of order delivery, a Poll Retransmit timer, a Receiving Discard timer, a Status Prohibit timer, or a resembling timer.
[0026] In some implementations, the communication device comprises at least one of the following: a data collection entity, a service data adaptation protocol (SDAP) entity, a packet data convergence protocol (PDCP) entity, a radio link control (RLC) entity, or a medium access control (MAC) entity.
[0027] In some implementations, the PDCP entity acts as a transmitting (TX) PDCP entity, and the TX PDCP entity is configured to perform the L2 handling procedure by: starting or using independent discard timers for packets comprising the multiple types of logged data upon reception of the packets from the data collection entity. Each of the independent discard timers is associated with a respective one of the multiple types of logged data.
[0028] In some implementations, the MAC entity acts as a transmitting (TX) MAC entity, and the TX MAC entity is configured to perform the L2 handling procedure by: applying at least one of the following for the multiple types of logged data: independent logical priorities, independent BSDs, or independent PBRs. Each of the independent logical priorities is associated with a respective one of the multiple types of logged data, each of the independent BSDs is associated with a respective one of the multiple types of logged data, and each of the independent PBRs is associated with a respective one of the multiple types of logged data.
[0029] In some implementations, the RLC entity acts as a receiving (RX) RLC entity, and the RX RLC entity is configured to perform the L2 handling procedure by: starting or using independent resembling timers for packets comprising the multiple types of logged data. Each of the independent resembling timers is associated with a respective one of the multiple types of logged data.
[0030] In some implementations, the PDCP entity acts as a receiving (RX) PDCP entity, and the RX PDCP entity is configured to perform the L2 handling procedure by: starting or using independent reordering timers for packets comprising the multiple types of logged data. Each of the independent reordering timers is associated with a respective one of the multiple types of logged data.
[0031] In some implementations, the PDCP entity acts as a receiving (RX) PDCP entity, and the RX PDCP entity is configured to perform the L2 handling procedure by: delivering the multiple types of logged data out of order to the collection data entity; and delivering the first type of logged data in order to the collection data entity.
[0032] In some implementations, the data collection entity is configured to perform the L2 handling procedure by at least one of the following: starting or using independent discard timers for packets comprising the multiple types of logged data upon generation of the packets; applying at least one of the following for the multiple types of logged data: independent logical priorities, independent BSDs, or independent PBRs; starting or using independent resembling timers for packets comprising the multiple types of logged data; starting or using independent reordering timers for packets comprising the multiple types of logged data; delivering the multiple types of logged data out of order to upper layers; or delivering the first type of logged data in order to upper layers.
[0033] Some implementations of a method described herein may include: generating a packet comprising at least one type of logged data based on at least one of the following: a first size requested by a network node, a second size of the logged data available for transmission, a first threshold, a maximum size supported by a lower layer of the UE, or a maximum allowed size of the lower layer of the UE; and transmitting the packet to a base station.
[0034] Some implementations of a method described herein may include: assigning, at a PDCP entity of the UE, SN for a packet for at least one type of logged data or for a segment of the packet; and performing security protection for the packet or for the segment based on the SN if configured with security protection.
[0035] Some implementations of a method described herein may include: performing an L2 handling procedure for each of multiple types of logged data based on configurations, wherein the configurations comprises a first configuration for a first type of logged data among the multiple types of logged data.
[0036] Some implementations of a processor described herein may include at least one memory and a controller coupled with the at least one memory and configured to cause the controller to: generate a packet comprising at least one type of logged data based on at least one of the following: a first size requested by a network node, a second size of the logged data available for transmission, a first threshold, a maximum size supported by a lower layer of the UE, or a maximum allowed size of the lower layer of the UE; and transmit the packet via the transceiver to a base station.
[0037] Some implementations of a processor described herein may include at least one memory and a controller coupled with the at least one memory and configured to cause the controller to: assign, at a PDCP entity of the UE, SN for a packet for at least one type of logged data or for a segment of the packet; and perform security protection for the packet or for the segment based on the SN if configured with security protection.
[0038] Some implementations of a processor described herein may include at least one memory and a controller coupled with the at least one memory and configured to cause the controller to: perform an L2 handling procedure for each of multiple types of logged data based on configurations, wherein the configurations comprises a first configuration for a first type of logged data among the multiple types of logged data.
[0039] It is to be understood that the summary section is not intended to identify key or essential features of embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS
[0040] Fig. 1 illustrates an example of a wireless communications system that supports data plane protocol in accordance with aspects of the present disclosure;
[0041] Fig. 2 illustrate a flowchart of a method that supports data plane protocol in accordance with aspects of the present disclosure;
[0042] Fig. 3 illustrates an example of a packet generated based on multiple items or entries of the logged data in accordance with aspects of the present disclosure;
[0043] Fig. 4 illustrates an example of a packet generated based on one item or entry of the logged data in accordance with aspects of the present disclosure;
[0044] Fig. 5 illustrate a flowchart of a method that supports data plane protocol in accordance with aspects of the present disclosure;
[0045] Figs. 6 and 7 illustrate a signaling diagram illustrating an example process that supports data plane protocol in accordance with aspects of the present disclosure, respectively;
[0046] Fig. 8 illustrate a flowchart of a method that supports data plane protocol in accordance with aspects of the present disclosure;
[0047] Fig. 9 illustrate a flowchart of a method that supports L2 handling procedure in accordance with aspects of the present disclosure;
[0048] Fig. 10 illustrates an example of a communication device in accordance with aspects of the present disclosure;
[0049] Fig. 11 illustrates an example of delivery of a packet in accordance with aspects of the present disclosure;
[0050] Fig. 12 illustrates an example of a device that supports data plane protocol in accordance with aspects of the present disclosure; and
[0051] Fig. 13 illustrates an example of a processor that supports data plane protocol in accordance with aspects of the present disclosure.DETAILED DESCRIPTION
[0052] Principles of the present disclosure will now be described with reference to some embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. The disclosure described herein may be implemented in various manners other than the ones described below.
[0053] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
[0054] References in the present disclosure to “one embodiment, ” “an example embodiment, ” “an embodiment, ” “some embodiments, ” and the like indicate that the embodiment (s) described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment (s) . Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
[0055] It shall be understood that although the terms “first” and “second” or the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could also be termed as a second element, and similarly, a second element could also be termed as a first element, without departing from the scope of embodiments. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.
[0056] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a” , “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” , “comprising” , “has” , “having” , “includes” and / or “including” , when used herein, specify the presence of stated features, elements, and / or components etc., but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof.
[0057] The present disclosure provides a solution that supports data plane protocol. In this solution, a UE generates a packet comprising at least one type of logged data based on at least one of the following: a first size requested by a network node, a second size of the logged data available for transmission, a first threshold, a maximum size supported by a lower layer of the UE, or a maximum allowed size of the lower layer of the UE. In turn, the UE transmits the packet to a base station. With this solution, at least one type of logged data may be generated with a proper size. This could help achieve high transmission efficiency based on load of network and radio condition of UE in case of low load of network and good radio condition.
[0058] Aspects of the present disclosure are described in the context of a wireless communications system.
[0059] Fig. 1 illustrates an example of a wireless communications system 100 that supports data plane protocol in accordance with aspects of the present disclosure. The wireless communications system 100 may include one at least one of network entities 102 (also referred to as network equipment (NE) ) , one or more terminal devices or UEs 104, a core network 106, and a packet data network 108. The wireless communications system 100 may support various radio access technologies. In some implementations, the wires communications system 100 may be a 6G network. In some implementations, the wireless communications system 100 may be a 4G network, such as an LTE network or an LTE-advanced (LTE-A) network. In some other implementations, the wireless communications system 100 may be a 5G network, such as an NR network. In other implementations, the wireless communications system 100 may be a combination of a 4G network and a 5G network, or other suitable radio access technology including institute of electrical and electronics engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20. The wireless communications system 100 may support radio access technologies beyond 5G. Additionally, the wireless communications system 100 may support technologies, such as time division multiple access (TDMA) , frequency division multiple access (FDMA) , or code division multiple access (CDMA) , etc.
[0060] The network entities 102 may be collectively referred to as network entities 102 or individually referred to as a network entity 102. Hereinafter, some implementations of the present disclosure will be described by taking a base station as an example of the network entity 102. Thus, the network entity 102 may be used interchangeably with the base station 102. For example, base stations 102 may comprise a first base station 102-1 and a second base station 102-2.
[0061] The network entities 102 may be dispersed throughout a geographic region to form the wireless communications system 100. One or more of the network entities 102 described herein may be or include or may be referred to as a network node, a base station (BS) , a network element, a radio access network (RAN) node, a base transceiver station, an access point, a NodeB, an eNodeB (eNB) , a next-generation NodeB (gNB) , a base station that will be used in 6G, or other suitable terminology. A network entity 102 and a UE 104 may communicate via a communication link 110, which may be a wireless or wired connection. For example, a network entity 102 and a UE 104 may perform wireless communication (e.g., receive signaling, transmit signaling) over a Uu interface. The network entities 102 may be collectively referred to as network entities 102 or individually referred to as a network entity 102.
[0062] A network entity 102 may provide a geographic coverage area 112 for which the network entity 102 may support services (e.g., voice, video, packet data, messaging, broadcast, etc. ) for one or more UEs 104 within the geographic coverage area 112. For example, a network entity 102 and a UE 104 may support wireless communication of signals related to services (e.g., voice, video, packet data, messaging, broadcast, etc. ) according to one or multiple radio access technologies. In some implementations, a network entity 102 may be moveable, for example, a satellite associated with a non-terrestrial network. In some implementations, different geographic coverage areas 112 associated with the same or different radio access technologies may overlap, but the different geographic coverage areas 112 may be associated with different network entities 102. Information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0063] The one or more UEs 104 may be dispersed throughout a geographic region of the wireless communications system 100. A UE 104 may include or may be referred to as a mobile device, a wireless device, a remote device, a remote unit, a handheld device, or a subscriber device, or some other suitable terminology. In some implementations, the UE 104 may be referred to as a unit, a station, a terminal, or a client, among other examples. Additionally, or alternatively, the UE 104 may be referred to as an internet-of-things (IoT) device, an internet-of-everything (IoE) device, or machine-type communication (MTC) device, among other examples. In some implementations, a UE 104 may be stationary in the wireless communications system 100. In some other implementations, a UE 104 may be mobile in the wireless communications system 100.
[0064] The one or more UEs 104 may be devices in different forms or having different capabilities. Some examples of UEs 104 are illustrated in Fig. 1. A UE 104 may be capable of communicating with various types of devices, such as the network entities 102, other UEs 104, or network equipment (e.g., the core network 106, the packet data network 108, a relay device, an integrated access and backhaul (IAB) node, or another network equipment) , as shown in Fig. 1. Additionally, or alternatively, a UE 104 may support communication with other network entities 102 or UEs 104, which may act as relays in the wireless communications system 100.
[0065] A UE 104 may also be able to support wireless communication directly with other UEs 104 over a communication link 114. For example, a UE 104 may support wireless communication directly with another UE 104 over a device-to-device (D2D) communication link. In some implementations, such as vehicle-to-vehicle (V2V) deployments, vehicle-to-everything (V2X) deployments, or cellular-V2X deployments, the communication link 114 may be referred to as a sidelink. For example, a UE 104 may support wireless communication directly with another UE 104 over a PC5 interface.
[0066] A network entity 102 may support communications with the core network 106, or with another network entity 102, or both. For example, a network entity 102 may interface with the core network 106 through one or more backhaul links 116 (e.g., via an S1, N2, N2, or another network interface) . The network entities 102 may communicate with each other over the backhaul links 116 (e.g., via an X2, Xn, or another network interface) . In some implementations, the network entities 102 may communicate with each other directly (e.g., between the network entities 102) . In some other implementations, the network entities 102 may communicate with each other or indirectly (e.g., via the core network 106) . In some implementations, one or more network entities 102 may include subcomponents, such as an access network entity, which may be an example of an access node controller (ANC) . An ANC may communicate with the one or more UEs 104 through one or more other access network transmission entities, which may be referred to as a radio heads, smart radio heads, or transmission-reception points (TRPs) .
[0067] In some implementations, a network entity 102 may be configured in a disaggregated architecture, which may be configured to utilize a protocol stack physically or logically distributed among two or more network entities 102, such as an integrated access backhaul (IAB) network, an open radio access network (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance) , or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN) ) . For example, a network entity 102 may include one or more of a central unit (CU) , a distributed unit (DU) , a radio unit (RU) , a RAN intelligent controller (RIC) (e.g., a near-real time RIC (Near-RT RIC) , a non-real time RIC (Non-RT RIC) ) , a service management and orchestration (SMO) system, or any combination thereof.
[0068] An RU may also be referred to as a radio head, a smart radio head, a remote radio head (RRH) , a remote radio unit (RRU) , or a transmission reception point (TRP) . One or more components of the network entities 102 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 102 may be located in distributed locations (e.g., separate physical locations) . In some implementations, one or more network entities 102 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU) , a virtual DU (VDU) , a virtual RU (VRU) ) .
[0069] Split of functionality between a CU, a DU, and an RU may be flexible and may support different functionalities depending upon which functions (e.g., network layer functions, protocol layer functions, baseband functions, radio frequency functions, and any combinations thereof) are performed at a CU, a DU, or an RU. For example, a functional split of a protocol stack may be employed between a CU and a DU such that the CU may support one or more layers of the protocol stack and the DU may support one or more different layers of the protocol stack. In some implementations, the CU may host upper protocol layer (e.g., a layer 3 (L3) , a layer 2 (L2) ) functionality and signaling (e.g., radio resource control (RRC) , service data adaption protocol (SDAP) , packet data convergence protocol (PDCP) ) . The CU may be connected to one or more DUs or RUs, and the one or more DUs or RUs may host lower protocol layers, such as a layer 1 (L1) (e.g., physical (PHY) layer) or an L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU.
[0070] Additionally, or alternatively, a functional split of the protocol stack may be employed between a DU and an RU such that the DU may support one or more layers of the protocol stack and the RU may support one or more different layers of the protocol stack. The DU may support one or multiple different cells (e.g., via one or more RUs) . In some implementations, a functional split between a CU and a DU, or between a DU and an RU may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU, a DU, or an RU, while other functions of the protocol layer are performed by a different one of the CU, the DU, or the RU) .
[0071] A CU may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU may be connected to one or more DUs via a midhaul communication link (e.g., F1, F1-c, F1-u) , and a DU may be connected to one or more RUs via a fronthaul communication link (e.g., open fronthaul (FH) interface) . In some implementations, a midhaul communication link or a fronthaul communication link may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities 102 that are in communication via such communication links.
[0072] The core network 106 may support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions. The core network 106 may be an evolved packet core (EPC) , or a 5G core (5GC) , which may include a control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management functions (AMF) ) and a user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a packet data network (PDN) gateway (P-GW) , or a user plane function (UPF) ) . In some implementations, the control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g., data bearers, signal bearers, etc. ) for the one or more UEs 104 served by the one or more network entities 102 associated with the core network 106.
[0073] The core network 106 may communicate with the packet data network 108 over one or more backhaul links 116 (e.g., via an S1, N2, N2, or another network interface) . The packet data network 108 may include an application server 118. In some implementations, one or more UEs 104 may communicate with the application server 118. A UE 104 may establish a session (e.g., a protocol data unit (PDU) session, or the like) with the core network 106 via a network entity 102. The core network 106 may route traffic (e.g., control information, data, and the like) between the UE 104 and the application server 118 using the established session (e.g., the established PDU session) . The PDU session may be an example of a logical connection between the UE 104 and the core network 106 (e.g., one or more network functions of the core network 106) .
[0074] In the wireless communications system 100, the network entities 102 and the UEs 104 may use resources of the wireless communications system 100 (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) ) to perform various operations (e.g., wireless communications) . In some implementations, the network entities 102 and the UEs 104 may support different resource structures. For example, the network entities 102 and the UEs 104 may support different frame structures. In some implementations, such as in 4G, the network entities 102 and the UEs 104 may support a single frame structure. In some other implementations, such as in 5G and among other suitable radio access technologies, the network entities 102 and the UEs 104 may support various frame structures (i.e., multiple frame structures) . The network entities 102 and the UEs 104 may support various frame structures based on one or more numerologies.
[0075] One or more numerologies may be supported in the wireless communications system 100, and a numerology may include a subcarrier spacing and a cyclic prefix. A first numerology (e.g., μ=0) may be associated with a first subcarrier spacing (e.g., 15 kHz) and a normal cyclic prefix. In some implementations, the first numerology (e.g., μ=0) associated with the first subcarrier spacing (e.g., 15 kHz) may utilize one slot per subframe. A second numerology (e.g., μ=1) may be associated with a second subcarrier spacing (e.g., 30 kHz) and a normal cyclic prefix. A third numerology (e.g., μ=2) may be associated with a third subcarrier spacing (e.g., 60 kHz) and a normal cyclic prefix or an extended cyclic prefix. A fourth numerology (e.g., μ=3) may be associated with a fourth subcarrier spacing (e.g., 120 kHz) and a normal cyclic prefix. A fifth numerology (e.g., μ=4) may be associated with a fifth subcarrier spacing (e.g., 240 kHz) and a normal cyclic prefix.
[0076] A time interval of a resource (e.g., a communication resource) may be organized according to frames (also referred to as radio frames) . Each frame may have a duration, for example, a 10 millisecond (ms) duration. In some implementations, each frame may include multiple subframes. For example, each frame may include 10 subframes, and each subframe may have a duration, for example, a 1 ms duration. In some implementations, each frame may have the same duration. In some implementations, each subframe of a frame may have the same duration.
[0077] Additionally or alternatively, a time interval of a resource (e.g., a communication resource) may be organized according to slots. For example, a subframe may include a number (e.g., quantity) of slots. The number of slots in each subframe may also depend on the one or more numerologies supported in the wireless communications system 100. For instance, the first, second, third, fourth, and fifth numerologies (i.e., μ=0, μ=1, μ=2, μ=3, μ=4) associated with respective subcarrier spacings of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz may utilize a single slot per subframe, two slots per subframe, four slots per subframe, eight slots per subframe, and 16 slots per subframe, respectively. Each slot may include a number (e.g., quantity) of symbols (e.g., OFDM symbols) . In some implementations, the number (e.g., quantity) of slots for a subframe may depend on a numerology. For a normal cyclic prefix, a slot may include 14 symbols. For an extended cyclic prefix (e.g., applicable for 60 kHz subcarrier spacing) , a slot may include 12 symbols. The relationship between the number of symbols per slot, the number of slots per subframe, and the number of slots per frame for a normal cyclic prefix and an extended cyclic prefix may depend on a numerology. It should be understood that reference to a first numerology (e.g., μ=0) associated with a first subcarrier spacing (e.g., 15 kHz) may be used interchangeably between subframes and slots.
[0078] In the wireless communications system 100, an electromagnetic (EM) spectrum may be split, based on frequency or wavelength, into various classes, frequency bands, frequency channels, etc. By way of example, the wireless communications system 100 may support one or multiple operating frequency bands, such as frequency range designations FR1 (410 MHz –7.125 GHz) , FR2 (24.25 GHz –52.6 GHz) , FR3 (7.125 GHz –24.25 GHz) , FR4 (52.6 GHz –114.25 GHz) , FR4a or FR4-1 (52.6 GHz –71 GHz) , and FR5 (114.25 GHz –300 GHz) . In some implementations, the network entities 102 and the UEs 104 may perform wireless communications over one or more of the operating frequency bands. In some implementations, FR1 may be used by the network entities 102 and the UEs 104, among other equipment or devices for cellular communications traffic (e.g., control information, data) . In some implementations, FR2 may be used by the network entities 102 and the UEs 104, among other equipment or devices for short-range, high data rate capabilities.
[0079] FR1 may be associated with one or multiple numerologies (e.g., at least three numerologies) . For example, FR1 may be associated with a first numerology (e.g., μ=0) , which includes 15 kHz subcarrier spacing; a second numerology (e.g., μ=1) , which includes 30 kHz subcarrier spacing; and a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing. FR2 may be associated with one or multiple numerologies (e.g., at least 2 numerologies) . For example, FR2 may be associated with a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing; and a fourth numerology (e.g., μ=3) , which includes 120 kHz subcarrier spacing.
[0080] Fig. 2 illustrate a flowchart of a method 200 that supports data plane protocol in accordance with aspects of the present disclosure. In some implementations, the method 200 can be implemented at a UE, such as the UE 104 as shown in Fig. 1. For the purpose of discussion, the method 200 will be described with reference to Fig. 1.
[0081] At 210, the UE 104 generates a packet comprising at least one type of logged data based on at least one of the following: a first size requested by a network node, a second size of the logged data available for transmission, a first threshold, a maximum size supported by a lower layer of the UE 104, or a maximum allowed size of the lower layer of the UE 104.
[0082] In the present disclosure, the term “packet” may be used interchangeably with the term “message” , “SDU” or “PDU” .
[0083] In the present disclosure, the term “data collection” entity may be replaced by the term “data plane function entity” .
[0084] In some implementations, the logged data does not necessarily mean the regular application data traffic, e.g., video, voice, web data. The logged data may refer to the radio / network performance related data / measurements that may be collected by the UE 104 and reports to the network via a data plane.
[0085] In some implementations, the logged data may comprise at least one of the following: - Layer 1 (L1) measurements, e.g., beam quality measurements in RSRP - Layer 3 (L3) measurements, e.g., L3 beam or L3 cell quality measurements in RSRP after applying a L3 filtering based on L1 measurement results - sensing related measurements, e.g., L1 / L3 measurements of dedicated sensing reference signal - positioning related measurements, e.g., L1 / L3 measurements of dedicated positioning reference signal - QoE related measurements, e.g., data rate, packet delay, packet loss rate - CSI report - the UE location, e.g., cell ID - radio link failure related information - time information for any of the above data.
[0086] At 220, the UE 104 transmits the packet to the base station 102.
[0087] In some implementations, if the UE 104 receives, from a network node, a request for the at least one type of logged data, the UE 104 may generate the packet comprising the at least one type of logged data. For example, the network node may be the base station 102 or a node in the core network 106.
[0088] In some implementations, the request for the at least one type of logged data may comprise the first size requested by the network node. For example, the UE 104 may receive, from the network node, one of the following comprising the first size: an RRC message, a layer 2 control message or a NAS message.
[0089] Alternatively, in some implementations, if the request for the at least one type of logged data does not comprise the first size, the UE 104 may generate the packet based on a default value.
[0090] Alternatively, if the request for the at least one type of logged data does not comprise the first size, the UE 104 may generate the packet by default based on a length of a buffer for at least one type of logged data available for transmission.
[0091] In some implementations, if a length of a buffer for the at least one type of logged data reaches a second threshold or the buffer for the at least one type of logged data is full, the UE 104 may generate the packet comprising the at least one type of logged data.
[0092] In some implementations, the UE 104 may generate, based on the first threshold, the packet comprising the at least one type of logged data. For example, the size of a generated packet is no more than the first threshold. The first threshold may be the same as or different from the second threshold. The first and second thresholds may be set by default to the full buffer length of the type of logged data or set to a default value. Alternatively, the first and second thresholds may be configured by a network node.
[0093] In some implementations, the UE 104 may generate, based on the maximum size supported by a lower layer of the UE 104, the packet comprising the at least one type of logged data. The lower layer may be a new layer which have some functions in PDCP and RLC in NR, PDCP layer, or RLC layer.
[0094] For example, if the lower layer is a PDCP layer, the maximum size supported by the lower layer of the UE 104 may be the maximum supported size of a PDCP SDU of an RB. The maximum supported size of a PDCP SDU of the RB may predefined or configured by a network node. If the size of all available logged data is larger than the maximum supported size of the PDCP SDU of the RB, the UE 104 may generate the packet based on a maximum size supported by the PDCP layer. Alternatively, there’s no limitation of the maximum size supported by PDCP layer. E. g., infinite value.
[0095] For example, if the lower layer is a RLC layer, the maximum size supported by the lower layer of the UE 104 may be the maximum supported size of a RLC SDU of an RB. The maximum supported size of a RLC SDU of the RB may predefined or configured by a network node. If the size of all available logged data is larger than the maximum supported size of the RLC SDU of the RB, the UE 104 may generate the packet based on a maximum size supported by the RLC layer. Alternatively, there’s no limitation of the maximum size supported by RLC layer. E. g., infinite value.
[0096] In some implementations, the UE 104 may generate, based on the maximum allowed size of the lower layer of the UE 104, the packet comprising the at least one type of logged data.
[0097] For example, if the lower layer is a MAC layer, the maximum allowed size of the lower layer may be a maximum allowed size of a MAC SDU. The maximum allowed size of the MAC SDU is based on the allocated resource size available for transmission of the type of the logged data during logical channel prioritization procedure. If the size of all available logged data is larger than the maximum allowed size of a MAC SDU, the UE 104 may generate the packet based on a maximum size allowed by the MAC layer. Alternatively, if the packet is larger than the maximum allowed size of the MAC SDU for transmission of the type of the logged data, the MAC layer may perform segmentation for the packet.
[0098] In some implementations, the larger the packet is generated, the less the overhead is expected due to less packets generated with the same value of the fields, e.g., transactionID, cell Id, refCSI-LoggedMeasurementConfigId.
[0099] In some implementations, when the UE 104 generates the packet, the packet may comprise the type of the logged data that triggers generation of the packet and comprise other type of data that is available in a memory / buffer of the UE 104.
[0100] In some implementations, if there is at least one remaining resource allocated or an available resource for transmission of the packet, the UE 104 may generate the packet comprising the at least one type of logged data.
[0101] In some implementations, if periodicity for generating the packet is met, the UE 104 may generate the packet comprising the at least one type of logged data. In other words, the UE 104 may generate periodically the packet comprising the at least one type of logged data. The periodicity may be configured by Network.
[0102] In some implementations, the UE 104 may be in an RRC idle state. In such implementations, the UE 104 may trigger an RRC connection setup procedure for transmission of the packet.
[0103] In some implementations, the UE 104 may be in an RRC inactive state. In such implementations, the UE 104 may trigger an RRC connection resume procedure for transmission of the packet.
[0104] Hereinafter, some implementations of assembly the packet comprising the at least one type of logged data will be described.
[0105] In some implementations, the packet may comprise one type of logged data. In such implementations, the UE 104 may generate the packet based on a variable for the UE 104. The variable comprises logged layer 1 measurements information for network data collection in accordance with a group of one or more CSI resources for which the UE 104 logs associated L1 radio measurements. Hereinafter, the variable may be referred to as a “variable VarCSI-LogMeasReport” . For example, the “variable VarCSI-LogMeasReport” may be defined as below: VarCSI-LogMeasReport-r19 : : = SEQUENCE { csi-LogMeasInfoList CSI-LogMeasInfoList-r19 }
[0106] For example, the UE 104 may generate the packet for CSI-LogMeasReport as below:
[0107] For another example, the UE 104 may generate the packet for CSI-LogMeasReport as below:
[0108] Table 1 shows CSI-LogMeasReport field descriptions. Table 1
[0109] In some implementations, the packet may comprise multiple types of logged data. In such implementations, the UE 104 may generate the packet comprising data fields, similar to a control PDU or MAC CE. For example, a data field may comprise a container.
[0110] In one option, the UE 104 may generate the packet based on multiple items or entries of the logged data associated with a logged configuration identity (ID) for a cell.
[0111] Fig. 3 illustrates an example of a packet 300 generated based on multiple items or entries of the logged data in accordance with aspects of the present disclosure. As shown in Fig. 3, the packet 300 may comprise an ID field, a Type field, an refCSI-LoggedMeasurementConfigId, a cell ID field, a Number of CSI-LogMeasInfo field, a Number of NZP CSI-RS-resources field (represented by NrofNZP-CSI-RS-Resources) , a Number of SSBs field (represented by NrofSSBs) , a Time field, and L1 RSRP field.
[0112] The ID field is used for the transaction identification of a message. Alternatively, this ID may be replaced by an SN of a message, and the unique SN is used for identifying a message.
[0113] The Type field is used to indicate the type of the logged data.
[0114] The refCSI-LoggedMeasurementConfigId field is used to indicate Reference to the instance of CSI-LoggedMeasurementConfig associated to the L1 radio measurement results.
[0115] The cell ID field is used to indicate the serving cell associated with the logged L1 radio measurements.
[0116] The Number of CSI-LogMeasInfo field is used to indicate the number of the logged L1 radio measurement results.
[0117] The Number of NZP CSI-RS-resources field is used to indicate the number of the logged L1 radio measurement results associated to CSI-RS resource. If the value >=1, the same number of sets of (csi-RS-Index field, L1-RSPR field, Time field) follows.
[0118] The Number of SSBs field is used to indicate the number of the logged L1 radio measurement results associated to SSB. If the value > =1, the same number of sets of (ssb-Index field, L1-RSPR field, Time field) follows.
[0119] The Time field is used to indicate the time information associated with the logged L1 radio measurement results.
[0120] The L1 RSRP field is used to indicate the measured L1 RSRP associated to the rs-Index.
[0121] In some implementations, some of the fields in the packet 300 may be placed in a header of the packet. For example, the Type field, ID / SN field or Number of CSI-LogMeasInfo field may be placed in the header.
[0122] In another option, the UE 104 may generate the packet based on one item or entry of the logged data. For example, the UE 104 may generate the packet based on one CSI-LogMeasInfo associated with a logged measurement config ID for a cell.
[0123] Fig. 4 illustrates an example of a packet 400 generated based on one item or entry of the logged data in accordance with aspects of the present disclosure. As shown in Fig. 4, the packet 400 is different from the packet 300 in that the packet 400 does not comprise the Number of CSI-LogMeasInfo field. Instead, the packet 400 comprises an SN field. The SN field indicates the sequence number of the logged data.
[0124] In some implementations, some of the fields in the packet 400 may be placed in a header of the packet 400. For example, the Type field, ID / SN field, Cell Id field, refCSI-LoggedMeasurementConfigId field, Number of NZP CSI-RS-resources field, Number of SSBs field may be placed in a header of the packet 400.
[0125] In some implementations, the UE 104 may comprise a data collection entity. Hereinafter, the term “data collection entity” may be used interchangeably with the term “data collection layer” . The data collection entity or layer may be a new protocol layer for managing the data.
[0126] In some implementations, the data collection entity may not buffer the packet for retransmission after delivering the packet to the lower layer, and the data collection entity may maintain the variable VarCSI-LogMeasReport. In such implementations, the UE 104 may discard part of the variable VarMeasIdleReport upon successful delivery of the packet to the lower layer and receiving a confirmation from the lower layer.
[0127] Alternatively, in some implementations, the data collection entity may buffer the packet for retransmission after delivering the packet to the lower layer.
[0128] In some implementations, if the data collection entity buffers the packet, the data collection entity may discard the packet upon successful delivery of the packet to the lower layer and receiving a confirmation from the lower layer. For example, the lower layer may be the new layer, the PDCP layer, RLC layer or MAC layer of the UE 104.
[0129] In such implementations, if the packet is segmented at the PDCP layer, the transmitting PDCP entity may provide an indication to the transmitting data collection entity. The indication may indicate which part of the packet from the data collection entity is successfully acknowledged. For example, the indication is segment offset start and / or segment offset end.
[0130] In such implementations, if the packet is segmented at the RLC layer, the transmitting RLC entity may provide an indication to the transmitting data collection entity. The indication may indicate which part of the packet from the data collection entity is successfully acknowledged. For example, the indication is segment offset start and / or segment offset end.
[0131] In such implementations, if the packet is segmented at the MAC layer, the transmitting MAC entity may provide an indication to the transmitting data collection entity. The indication may indicate which part of the packet from the data collection entity is successfully acknowledged. For example, the indication is segment offset start and / or segment offset end.
[0132] Alternatively, in some implementations, if the data collection entity buffers the packet, the data collection entity may discard the packet upon expiration of a discard timer for the packet. The data collection entity may start the discard timer upon generation of the packet in the data collection entity or upon delivery to the lower layer.
[0133] Alternatively, in some implementations, if the data collection entity buffers the packet, the data collection entity may discard the packet upon receiving a successful response from a peer data collection entity. In such implementations, an SN needs to be allocated for the packet.
[0134] Alternatively, in some implementations, if the data collection entity buffers the packet and if an indication indicating the packet is missing is received from the lower layer, the data collection entity may perform retransmission of the packet.
[0135] In such implementations, if the packet is segmented at the PDCP layer, the transmitting PDCP entity may provide an indication to the transmitting data collection entity. The indication may indicate which part of the packet is missing. For example, the indication is segment offset start and / or segment offset end.
[0136] In such implementations, if the packet is segmented at the RLC layer, the transmitting RLC entity may provide an indication to the transmitting data collection entity. The indication may indicate which part of the packet is missing. For example, the indication is segment offset start and / or segment offset end.
[0137] In such implementations, if the packet is segmented at the MAC layer, the transmitting MAC entity may provide an indication to the transmitting data collection entity. The indication may indicate which part of the packet is missing. For example, the indication is segment offset start and / or segment offset end.
[0138] Alternatively, in some implementations, if the data collection entity buffers the packet and if an indication indicating the packet is missing is received from a peer data collection entity, the data collection entity may perform retransmission of the packet.
[0139] Fig. 5 illustrate a flowchart of a method 500 that supports data plane protocol in accordance with aspects of the present disclosure. In some implementations, the method 500 can be implemented at a UE, such as the UE 104 as shown in Fig. 1. For the purpose of discussion, the method 500 will be described with reference to Fig. 1.
[0140] At 510, the UE 104 assigns, at a PDCP entity of the UE 104, an SN for a packet for at least one type of logged data or for a segment of the packet.
[0141] At 520, the UE 104 performs security protection for the packet or for the segment based on the SN if configured with security protection.
[0142] In some implementations, if a size of the packet is greater than a first size supported by one PDCP SDU, the PDCP entity may perform segmentation of the packet to generate at least one segment, and determine information related to the segmentation.
[0143] In some implementations, if the size of the packet is greater than a maximum allowed size of the lower layer of the UE 104, one of the PDCP entity, the RLC entity and the MAC entity of the UE 104 may perform segmentation of the packet. For example, if the size of the packet is greater than a maximum allowed size of one MAC SDU, one of the PDCP entity, the RLC entity and the MAC entity of the UE 104 may perform segmentation of the packet.
[0144] In some implementations, the PDCP entity may perform segmentation of the packet after performing security protection for the packet. In such implementations, the PDCP entity may assign a single SN for the at least one segment. In other words, the PDCP entity may assign the same SN for the at least one segment.
[0145] In some implementations, the information related to the segmentation comprises at least one of the following: a first indication indicating whether a PDCP PDU comprises the packet or a start, middle, last segment of the packet; or an offset between the segment and the start segment. Hereinafter, the first indication is also referred to as a “segment indicator” , and the offset is also referred to as a “segment offset” . For example, Table 2 gives examples of values and descriptions of the segment indicator. Table 2
[0146] Fig. 6 illustrates a signaling diagram illustrating an example process 600 that supports data plane protocol in accordance with aspects of the present disclosure. The process 600 may be considered as an example implementation of the method 200 or 500. The process 600 may involve the UE 104 and the base station 102 in Fig. 1. The UE 104 may be implemented as a transmitter of a packet and the base station 102 may be implemented as a receiver of the packet. The UE 104 may comprise at least a TX data collection entity and a TX PDCP entity, and the base station 102 may comprise at least an RX data collection entity and an RX PDCP entity.
[0147] As shown in Fig. 6, at 610, the TX data collection entity generates a packet without SN. For example, the TX data collection entity may generate the packet by performing the method 200 as described above. The TX data collection entity does not need to allocate an SN for the packet. The packet comprises a type of logged data which is buffered by the TX data collection entity.
[0148] Upon receiving the packet from the TX data collection entity, the TX PDCP entity assigns an SN or ID for the packet at 615.
[0149] At 620, the TX PDCP entity performs security protection for the packet based on the SN if configured with security protection. For example, the TX PDCP entity performs at least one of the following for the packet: ciphering or integrity protection.
[0150] At 625, the TX PDCP entity performs segmentation of the packet to generate at least one segment if needed.
[0151] In some implementations, if a size of the packet is greater than a first size supported by one PDCP SDU, the PDCP entity may perform segmentation of the packet to generate at least one segment. For example, the TX PDCP entity performs segmentation of the packet to generate a segment #1. If the size of the packet is equal to or lower than the first size supported by one PDCP SDU, the PDCP entity may not perform segmentation of the packet.
[0152] In some implementations, if the size of the packet is greater than a maximum allowed size of the lower layer of the UE 104, one of the PDCP entity, the RLC entity and the MAC entity of the UE 104 may perform segmentation of the packet. If the size of the packet is equal to or lower than the maximum allowed size of the lower layer of the UE 104, none of the PDCP entity, the RLC entity and the MAC entity of the UE 104 may perform segmentation of the packet.
[0153] In addition, the TX PDCP entity determines information related to the segmentation. For example, the TX PDCP entity determines a segment offset between the segment #1 and a start segment.
[0154] In turn, the TX PDCP entity may transmit the packet including the SN, the segment offset and the segment #1 to the base station 102 via a radio interface.
[0155] Upon receiving the packet, the RX PDCP entity of the base station 102 performs, at 630, assembly of the at least one segment if needed.
[0156] At 635, the RX PDCP entity performs at least one of the following for the packet: deciphering or integrity verification.
[0157] At 640, the RX PDCP entity performs reordering and duplicate discarding.
[0158] At 645, the RX data collection entity obtains the packet.
[0159] Alternatively, in some implementations, the PDCP entity may perform segmentation of the packet before performing security protection for the segment. This will be described with reference to Fig. 7.
[0160] Fig. 7 illustrates a signaling diagram illustrating an example process 700 that supports data plane protocol in accordance with aspects of the present disclosure. The process 700 may be considered as an example implementation of the method 200 or 500. The process 700 may involve the UE 104 and the base station 102 in Fig. 1. The UE 104 may be implemented as a transmitter of a packet and the base station 102 may be implemented as a receiver of the packet. The UE 104 may comprise at least a TX data collection entity and a TX PDCP entity, and the base station 102 may comprise at least an RX data collection entity and an RX PDCP entity.
[0161] As shown in Fig. 7, at 710, the TX data collection entity generates a packet without SN. For example, the TX data collection entity may generate the packet by performing the method 200 as described above. The packet comprises a type of logged data which is buffered by the TX data collection entity. The TX data collection entity does not need to allocate an SN for the packet.
[0162] Upon receiving the packet from the TX data collection entity, the TX PDCP entity performs, at 715, segmentation of the packet to generate at least one segment if needed.
[0163] In some implementations, if a size of the packet is greater than a first size supported by one PDCP SDU, the PDCP entity may perform segmentation of the packet to generate at least one segment. For example, the TX PDCP entity performs segmentation of the packet to generate a segment #1. If the size of the packet is equal to or lower than the first size supported by one PDCP SDU, the PDCP entity may not perform segmentation of the packet.
[0164] In some implementations, if the size of the packet is greater than a maximum allowed size of the lower layer of the UE 104, one of the PDCP entity, the RLC entity and the MAC entity of the UE 104 may perform segmentation of the packet. If the size of the packet is equal to or lower than the maximum allowed size of the lower layer of the UE 104, none of the PDCP entity, the RLC entity and the MAC entity of the UE 104 may perform segmentation of the packet.
[0165] At 715, the TX PDCP entity also assigns a unique SN or ID for each of the at least one segment. In other words, if the TX PDCP entity may perform segmentation of the packet to generate multiple segments, the TX PDCP entity assigns different SNs for the multiple segments. Such implementations may avoid assigning duplicated SN for the packet for transmission. Thus, less overhead is achieved.
[0166] At 715, the TX PDCP entity also determines information related to the segmentation. For example, the TX PDCP entity determines a second indication indicating whether the packet is segmented at beginning and / or at an end of the packet. The second indication is also referred to as “segmentation information” (SI) . For example, Table 3 gives examples of values and descriptions of the SI. Table 3
[0167] In some implementations, the UE 104 may include the SN and / or the SI in a header associated with the packet. For example, the TX PDCP entity include the SN and / or the SI in a PDCP header. For example, the UE 104 may include the SN and / or the SI in a data collection header associated with a data collection SDU.
[0168] At 720, the TX PDCP entity performs security protection for the at least one segment based on the SN if configured with security protection. For example, the TX PDCP entity performs at least one of the following for the at least one segment: ciphering or integrity protection. For example, the TX PDCP entity may perform ciphering for a segment of a data collection SDU including the SI.
[0169] In turn, the TX PDCP entity may transmit a packet including the SN, the SI and the segment #1 to the base station 102 via a radio interface.
[0170] Upon receiving the packet, at 725, the RX PDCP entity of the base station 102 performs at least one of the following for the packet: deciphering or integrity verification.
[0171] At 730, the RX PDCP entity performs assembly of the at least one segment if needed.
[0172] At 735, the RX PDCP entity performs reordering and duplicate discarding.
[0173] At 740, the RX data collection entity obtains the packet.
[0174] Alternatively, if the UE 104 generates a packet at the TX data collection entity, with size of which is no more than a maximum supported size of one PDCP SDU, the RX PDCP entity delivers the data in order of PDCP SNs to the RX data collection entity. The packet does not comprise the SN and / or information related to segmentation.
[0175] In the process 700, the TX data collection entity generates a packet as large as possible without segment information / sequence number, and it is up to lower entity to perform segmentation if needed and assign SN for a packet or a segment. This avoids the duplicated SN being allocated in the data collection entity and lower entity. The receiving lower entity performs assembling and delivers it in order of lower layer SN to the RX data collection layer.
[0176] Fig. 8 illustrate a flowchart of a method 800 that supports data plane protocol in accordance with aspects of the present disclosure. The method 800 may be considered as an example implementation of the method 200 or 500. In some implementations, the method 800 can be implemented at a UE, such as the UE 104 as shown in Fig. 1. For the purpose of discussion, the method 800 will be described with reference to Fig. 1.
[0177] At 810, a data collection entity of the UE 104 generates a packet with an SN or ID. The packet comprises a type of logged data. For example, the data collection entity of the UE 104 may generate the packet by performing the method 200 as described above.
[0178] At 820, the data collection entity performs security protection for the packet based on the SN or ID if configured with security protection. For example, the data collection entity performs at least one of the following for the packet: ciphering or integrity protection.
[0179] At 830, the data collection entity may perform segmentation of the packet to generate at least one segment if needed.
[0180] In some implementations, if the size of the packet is greater than a maximum allowed size of the lower layer (e.g., the MAC layer) of the UE 104, the data collection entity may perform segmentation of the packet so that the data collection PDU can fit within the total size of data collection PDU (s) indicated by lower layer. If the size of the packet is equal to or lower than the maximum allowed size of the lower layer of the UE 104, the data collection entity may not perform segmentation of the packet.
[0181] At 840, the data collection entity determines information related to the segmentation.
[0182] In some implementations, the information related to the segmentation comprises at least one of the following: the first indication (i.e., segment indicator) indicating whether a data collection PDU comprises the packet or a start, middle, last segment of the packet; or the offset between a segment and a start segment. Examples of the segment indicator have been described with reference to Table 2.
[0183] In some implementations, the data collection entity may include the SN and / or the information related to the segmentation in a header associated with the packet.
[0184] At 850, upon receiving the packet from packet from the data collection entity, the MAC entity of the UE 104 may perform multiplexing and assembly.
[0185] In some implementations, a data collection entity of the UE 104 may perform segmentation to generate at least one segment for a packet if needed, and assign a unique SN or ID for the segment. The data collection entity determines information related to the segmentation. For example, the data collection entity determines a second indication indicating whether the packet is segmented at beginning and / or at an end of the packet.
[0186] Hereinafter, some implementations about how to support the different QoS handling in L2 procedure will be described if multiple types of logged data are carried on an RB.
[0187] Fig. 9 illustrate a flowchart of a method 900 that supports L2 handling procedure in accordance with aspects of the present disclosure. In some implementations, the method 900 can be implemented at a communication device, such as the UE 104 or the base station 102 as shown in Fig. 1. For the purpose of discussion, the method 900 will be described with reference to Fig. 1 by taking the UE 104 as example of the communication device. It shall be noted that the method 900 can also be implemented at the base station 102 likewise.
[0188] As shown in Fig. 9, the UE 104 performs an L2 handling procedure for each of multiple types of logged data based on configurations at 910. The configurations comprise a first configuration for a first type of logged data among the multiple types of logged data. The configurations may further comprise a second configuration for a second type of logged data among the multiple types of logged data.
[0189] In some implementation, a network node transmits, to the UE 104, the first configuration for the first type of log data and the second configuration for the second type of log data. The UE 104 receives the first configuration and the second configuration from the network node. For example, the network node may comprise the base station 102 or a node in the core network 106.
[0190] In some implementations, the first configuration may comprise at least one of the following associated with the first type of log data: - a first discard timer - a first logical channel priority, - a first priority of the first type of logged data, - a first bucket size duration (BSD) , - a first prioritized bit rate (PBR) , - logical channel restriction, - a first reordering timer, - inter-type out of order delivery, - a first Poll Retransmit timer, - a first Receiving Discard timer, - a first Status Prohibit timer, or - a first resembling timer.
[0191] In some implementations, the second configuration may comprise at least one of the following associated with the second type of log data: - a second discard timer which is independent (separate or different) from the first discard timer, - a second logical channel priority which is independent (separate or different) from the first logical channel priority, - a second priority of the second type of logged data which is independent (separate or different) from the first priority of the first type of logged data, - a second BSD which is independent (separate or different) from the first BSD, - a second PBR which is independent (separate or different) from the first PBR, - logical channel restriction, - a second reordering timer which is independent (separate or different) from the first reordering timer, - inter-type out of order delivery, - a second Poll Retransmit timer which is independent (separate or different) from the first Poll Retransmit timer, - a second Receiving Discard timer which is independent (separate or different) from the first Receiving Discard timer, - a second Status Prohibit timer which is independent (separate or different) from the first Status Prohibit timer, or - a second resembling timer which is independent (separate or different) from the first resembling timer.
[0192] In some implementations, the logical channel restriction may comprise at least one of the following: - allowedSCS-List which sets the allowed Subcarrier Spacing (s) for transmission; - maxPUSCH-Duration which sets the maximum PUSCH duration allowed for transmission; - configuredGrantType1Allowed which sets whether a configured grant Type 1 may be used for transmission; - allowedServingCells which sets the allowed cell (s) for transmission; - allowedCG-List which sets the allowed configured grant (s) for transmission; - allowedPHY-PriorityIndex which sets the allowed PHY priority index (es) of a dynamic grant for transmission; - allowedHARQ-mode which sets the allowed UL HARQ mode for transmission.
[0193] In some implementations, the first configuration may comprise a PDCP configuration. In such implementations, the PDCP configuration may comprise at least one of the following: the first reordering timer or the inter-type out of order delivery.
[0194] In some implementations, the first configuration may comprise an RLC configuration. In such implementations, the RLC configuration may comprise at least one of the following: the first Poll Retransmit timer, the first Receiving Discard timer, or the first Status Prohibit timer, or the first resembling timer.
[0195] In some implementations, the second configuration may comprise a PDCP configuration. In such implementations, the PDCP configuration may comprise at least one of the following: the second reordering timer or the inter-type out of order delivery.
[0196] In some implementations, the second configuration may comprise an RLC configuration. In such implementations, the RLC configuration may comprise at least one of the following: the second Poll Retransmit timer, the second Receiving Discard timer, or the second Status Prohibit timer, or the second resembling timer.
[0197] Table 4 gives descriptions of the Poll Retransmit timer (also referred to as t-PollRetransmit) , the resembling timer (also referred to as t-Reassembly) , the Status Prohibit timer (also referred to as t-StatusProhibit) and the Receiving Discard timer (also referred to as t-RxDiscard) . Table 4
[0198] Fig. 10 illustrates an example of a communication device 1000 in accordance with aspects of the present disclosure. As shown in Fig. 10, the communication device 1000 may comprise at least one of the following: a data collection entity 1010, a packet data convergence protocol (PDCP) entity 1020, a radio link control (RLC) entity 1030, a medium access control (MAC) entity 1004 or a physical (PHY) entity 1050.
[0199] In some implementations, the PDCP entity 1020 may act as a transmitting (TX) PDCP entity. The TX PDCP entity may obtain a packet including an indication indicating the type of the packet and / or an SN of the packet from the data collection entity 1010. For example, the indication may be included in a header of the packet. Alternatively, the TX PDCP entity may obtain a packet, the indication of the packet from the data collection entity. The TX PDCP entity may obtain a packet and the SN of the packet from the data collection entity.
[0200] In some implementations, the TX PDCP entity may allocate a PDCP SN for the packet, in addition each type has its associated sequence numbers, which may be allocated by the data collection entity 1010 or PDCP entity 1020.
[0201] In some implementations, the TX PDCP entity may perform the L2 handling procedure by starting or using independent (separate or different) discard timers for packets comprising the multiple types of logged data upon reception of the packets from the data collection entity. Each of the independent discard timers is associated with a respective one of the multiple types of logged data.
[0202] In some implementations, the TX PDCP entity may perform the L2 handling procedure by starting or using the first discard timer for a packet comprising the first type of logged data upon reception of the packet from the data collection entity. The TX PDCP entity may perform the L2 handling procedure by starting or using the second discard timer for a packet comprising the second type of logged data upon reception of the packet from the data collection entity.
[0203] In some implementations, the first discard timer may be configured independently or separate from the second discard timer.
[0204] In some implementations, a first length of the first discard timer may be independent, separate or different from a second length of the second discard timer.
[0205] In some implementations, the MAC entity 1040 may act as a TX MAC entity, and the TX MAC entity may perform the L2 handling procedure by applying at least one of the following for packets comprising the multiple types of logged data: independent (separate or different) logical priorities, independent (separate or different) BSDs, or independent (separate or different) PBRs. Each of the independent logical priorities is associated with a respective one of the multiple types of logged data, each of the independent BSDs is associated with a respective one of the multiple types of logged data, each of the independent PBRs is associated with a respective one of the multiple types of logged data.
[0206] For example, the TX MAC entity may apply, for a packet comprising the first type of logged data, at least one of the following associated with the first type of logged data: the first logical priority, the first BSD, or the first PBR. Alternatively or additionally, the TX MAC entity may apply, for a packet comprising the second type of logged data, at least one of the following associated with the second type of logged data: the second logical priority, the second BSD, or the second PBR.
[0207] In some implementations, the TX MAC entity may receive the type indication from upper layer or obtain the type indication from the header of the packet.
[0208] In some implementations, the RLC entity 1030 may act as a receiving (RX) RLC entity, and the RX RLC entity may perform the L2 handling procedure by starting or using independent (separate or different) resembling timers for packets comprising the multiple types of logged data, e.g, if detecting one segment of the type of packet is missing. Each of the independent reordering timers is associated with a respective one of the multiple types of logged data.
[0209] For example, the RX RLC entity may start or use, for a packet comprising the first type of logged data, the first resembling timer associated with the first type of logged data, e.g, if detecting one segment of the first type of packet is missing. Alternatively or additionally, the RX RLC entity may start or use, for a packet comprising the second type of logged data, the second resembling timer associated with the second type of logged data, e.g, if detecting one segment of the second type of packet is missing.
[0210] In some implementations, the TX RLC entity may receive the type of indication from upper layer or obtain the type of indication from the header of the packet.
[0211] In some implementations, the PDCP entity 1020 may act as an RX PDCP entity and the RX PDCP entity may perform the L2 handling procedure by starting or using independent (separate or different) reordering timers associated with the multiple types of logged data, e.g., if detecting the type of packet is missing.
[0212] For example, the RX PDCP entity may start or use, for a packet comprising the first type of logged data, the first reordering timer associated with the first type of logged data, e.g., if detecting the first type of packet is missing. Alternatively or additionally, the RX PDCP entity may tart or use, for a packet comprising the second type of logged data, the second reordering timer associated with the second type of logged data, e.g., if detecting the second type of packet is missing.
[0213] In some implementations, the PDCP entity 1020 may act as an RX PDCP entity and the RX PDCP entity may perform the L2 handling procedure by delivering the multiple types of logged data out of order to the collection data entity; and delivering the first type of logged data in order to the collection data entity.
[0214] Fig. 11 illustrates an example of delivery of a packet in accordance with aspects of the present disclosure. As shown in Fig. 11, the RX PDCP entity may deliver the multiple types of logged data out of order to the collection data entity and deliver the first type of logged data in order to the collection data entity. For example, packets #1, 2, 5, 6, 9 has been received by the UE 104. The packets #1, 2, 3, 4, 9 are of type 1, and the packets #5, 6, 7, 8 are of type 2. The UE 104 delivers the packets #5 and 6 regardless of missing the packets #3 and 4.
[0215] In some implementations, the data collection entity 1210 may perform the L2 handling procedure by at least one of the following: - starting or using independent (separate or different) discard timers for packets comprising the multiple types of logged data upon generation of the packets, wherein each of the independent discard timers is associated with a respective one of the multiple types of logged data; - applying at least one of the following for packets comprising the multiple types of logged data: independent (separate or different) logical priorities, independent (separate or different) BSDs, or independent (separate or different) PBRs, wherein each of the independent logical priorities is associated with a respective one of the multiple types of logged data, each of the independent BSDs is associated with a respective one of the multiple types of logged data, each of the independent PBRs is associated with a respective one of the multiple types of logged data; - starting or using independent (separate or different) resembling timers for packets comprising the multiple types of logged data, wherein each of the independent resembling timers is associated with a respective one of the multiple types of logged data; - starting or using independent (separate or different) reordering timers for packets comprising the multiple types of logged data, wherein each of the independent reordering timers is associated with a respective one of the multiple types of logged data; - delivering the multiple types of logged data out of order to upper layers; or - delivering the first type of logged data in order to upper layers.
[0216] Fig. 12 illustrates an example of a device 1200 that supports data plane protocol in accordance with aspects of the present disclosure. The device 1200 may be an example of a network entity 102 or a UE 104 as described herein. The device 1200 may support wireless communication with one or more network entities 102, UEs 104, or any combination thereof. The device 1200 may include components for bi-directional communications including components for transmitting and receiving communications, such as a processor 1202, a memory 1204, a transceiver 1206, and, optionally, an I / O controller 1208. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0217] The processor 1202, the memory 1204, the transceiver 1206, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. For example, the processor 1202, the memory 1204, the transceiver 1206, or various combinations or components thereof may support a method for performing one or more of the operations described herein.
[0218] In some implementations, the processor 1202, the memory 1204, the transceiver 1206, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure. In some implementations, the processor 1202 and the memory 1204 coupled with the processor 1202 may be configured to perform one or more of the functions described herein (e.g., executing, by the processor 1202, instructions stored in the memory 1204) .
[0219] For example, the processor 1202 may support wireless communication at the device 1200 in accordance with examples as disclosed herein. The processor 1202 may be configured to operable to support a means for performing the following: generating a packet comprising at least one type of logged data based on at least one of the following: a first size requested by a network node, a second size of the logged data available for transmission, a first threshold, a maximum size supported by a lower layer of the UE, or a maximum allowed size of the lower layer of the UE; and transmitting the packet to a base station.
[0220] Alternatively, in some implementations, the processor 1202 may be configured to operable to support a means for performing the following: assigning, at a PDCP entity of the UE, SN for a packet for at least one type of logged data or for a segment of the packet; and performing security protection for the packet or for the segment based on the SN if configured with security protection.
[0221] Alternatively, in some implementations, the processor 1202 may be configured to operable to support a means for performing the following: performing an L2 handling procedure for each of multiple types of logged data based on configurations, wherein the configurations comprises a first configuration for a first type of logged data among the multiple types of logged data.
[0222] The processor 1202 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) . In some implementations, the processor 1202 may be configured to operate a memory array using a memory controller. In some other implementations, a memory controller may be integrated into the processor 1202. The processor 1202 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1204) to cause the device 1200 to perform various functions of the present disclosure.
[0223] The memory 1204 may include random access memory (RAM) and read-only memory (ROM) . The memory 1204 may store computer-readable, computer-executable code including instructions that, when executed by the processor 1202 cause the device 1200 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some implementations, the code may not be directly executable by the processor 1202 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some implementations, the memory 1204 may include, among other things, a basic I / O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.
[0224] The I / O controller 1208 may manage input and output signals for the device 1200. The I / O controller 1208 may also manage peripherals not integrated into the device M02. In some implementations, the I / O controller 1208 may represent a physical connection or port to an external peripheral. In some implementations, the I / O controller 1208 may utilize an operating system such as or another known operating system. In some implementations, the I / O controller 1208 may be implemented as part of a processor, such as the processor 1206. In some implementations, a user may interact with the device 1200 via the I / O controller 1208 or via hardware components controlled by the I / O controller 1208.
[0225] In some implementations, the device 1200 may include a single antenna 1210. However, in some other implementations, the device 1200 may have more than one antenna 1210 (i.e., multiple antennas) , including multiple antenna panels or antenna arrays, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 1206 may communicate bi-directionally, via the one or more antennas 1210, wired, or wireless links as described herein. For example, the transceiver 1206 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 1206 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 1210 for transmission, and to demodulate packets received from the one or more antennas 1210. The transceiver 1206 may include one or more transmit chains, one or more receive chains, or a combination thereof.
[0226] A transmit chain may be configured to generate and transmit signals (e.g., control information, data, packets) . The transmit chain may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM) , frequency modulation (FM) , or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM) . The transmit chain may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium. The transmit chain may also include one or more antennas 1210 for transmitting the amplified signal into the air or wireless medium.
[0227] A receive chain may be configured to receive signals (e.g., control information, data, packets) over a wireless medium. For example, the receive chain may include one or more antennas 1210 for receive the signal over the air or wireless medium. The receive chain may include at least one amplifier (e.g., a low-noise amplifier (LNA) ) configured to amplify the received signal. The receive chain may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal. The receive chain may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.
[0228] Fig. 13 illustrates an example of a processor 1300 that supports data plane protocol in accordance with aspects of the present disclosure. The processor 1300 may be an example of a processor configured to perform various operations in accordance with examples as described herein. The processor 1300 may include a controller 1302 configured to perform various operations in accordance with examples as described herein. The processor 1300 may optionally include at least one memory 1304, such as L1 / L2 / L3 cache. Additionally, or alternatively, the processor 1300 may optionally include one or more arithmetic-logic units (ALUs) 1306. One or more of these components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0229] The processor 1300 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 1300) or other memory (e.g., random access memory (RAM) , read-only memory (ROM) , dynamic RAM (DRAM) , synchronous dynamic RAM (SDRAM) , static RAM (SRAM) , ferroelectric RAM (FeRAM) , magnetic RAM (MRAM) , resistive RAM (RRAM) , flash memory, phase change memory (PCM) , and others) .
[0230] The controller 1302 may be configured to manage and coordinate various operations (e.g., signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 1300 to cause the processor 1300 to support various operations in accordance with examples as described herein. For example, the controller 1302 may operate as a control unit of the processor 1300, generating control signals that manage the operation of various components of the processor 1300. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.
[0231] The controller 1302 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 1304 and determine subsequent instruction (s) to be executed to cause the processor 1300 to support various operations in accordance with examples as described herein. The controller 1302 may be configured to track memory address of instructions associated with the memory 1304. The controller 1302 may be configured to decode instructions to determine the operation to be performed and the operands involved. For example, the controller 1302 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 1300 to cause the processor 1300 to support various operations in accordance with examples as described herein. Additionally, or alternatively, the controller 1302 may be configured to manage flow of data within the processor 1300. The controller 1302 may be configured to control transfer of data between registers, arithmetic logic units (ALUs) , and other functional units of the processor 1300.
[0232] The memory 1304 may include one or more caches (e.g., memory local to or included in the processor 1300 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementation, the memory 1304 may reside within or on a processor chipset (e.g., local to the processor 1300) . In some other implementations, the memory 1304 may reside external to the processor chipset (e.g., remote to the processor 1300) .
[0233] The memory 1304 may store computer-readable, computer-executable code including instructions that, when executed by the processor 1300, cause the processor 1300 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. The controller 1302 and / or the processor 1300 may be configured to execute computer-readable instructions stored in the memory 1304 to cause the processor 1300 to perform various functions. For example, the processor 1300 and / or the controller 1302 may be coupled with or to the memory 1304, the processor 1300, the controller 1302, and the memory 1304 may be configured to perform various functions described herein. In some examples, the processor 1300 may include multiple processors and the memory 1304 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.
[0234] The one or more ALUs 1306 may be configured to support various operations in accordance with examples as described herein. In some implementation, the one or more ALUs 1306 may reside within or on a processor chipset (e.g., the processor 1300) . In some other implementations, the one or more ALUs 1306 may reside external to the processor chipset (e.g., the processor 1300) . One or more ALUs 1306 may perform one or more computations such as addition, subtraction, multiplication, and division on data. For example, one or more ALUs 1306 may receive input operands and an operation code, which determines an operation to be executed. One or more ALUs 1306 be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 1306 may support logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 1306 to handle conditional operations, comparisons, and bitwise operations.
[0235] The processor 1300 may support wireless communication at the device 1200 in accordance with examples as disclosed herein. For example, the processor 1300 may support wireless communication at the device 1200 in accordance with examples as disclosed herein. The processor 1300 may be configured to operable to support a means for performing the following: generating a packet comprising at least one type of logged data based on at least one of the following: a first size requested by a network node, a second size of the logged data available for transmission, a first threshold, a maximum size supported by a lower layer of the UE, or a maximum allowed size of the lower layer of the UE; and transmitting the packet to a base station.
[0236] Alternatively, in some implementations, the processor 1300 may be configured to operable to support a means for performing the following: assigning, at a PDCP entity of the UE, SN for a packet for at least one type of logged data or for a segment of the packet; and performing security protection for the packet or for the segment based on the SN if configured with security protection.
[0237] Alternatively, in some implementations, the processor 1300 may be configured to operable to support a means for performing the following: performing an L2 handling procedure for each of multiple types of logged data based on configurations, wherein the configurations comprise a first configuration for a first type of logged data among the multiple types of logged data.
[0238] It shall be noted that implementations of the present disclosure which have been described with reference to Figs. 1 to 11 are also applicable to the device 1200 and the processor 1300.
[0239] It should be noted that the methods described herein describes possible implementations, and that the operations and the steps may be rearranged or otherwise modified and that other implementations are possible. Further, aspects from two or more of the methods may be combined.
[0240] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed with a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
[0241] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
[0242] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
[0243] As used herein, including in the claims, an article “a” before an element is unrestricted and understood to refer to “at least one” of those elements or “one or more” of those elements. The terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable. As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of” or “one or both of” ) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) . Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. Further, as used herein, including in the claims, a “set” may include one or more elements.
[0244] The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1.A user equipment (UE) , comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:generate a packet comprising at least one type of logged data based on at least one of the following:a first size requested by a network node,a second size of the logged data available for transmission,a first threshold,a maximum size supported by a lower layer of the UE, ora maximum allowed size of the lower layer of the UE; andtransmit the packet via the transceiver to a base station.2.The UE of claim 1, wherein the processor is configured to generate the packet based on determining at least one of the following:a request for the at least one type of logged data is received,a length of a buffer for the at least one type of logged data reaches a second threshold,the buffer for the at least one type of logged data is full,there is at least one remaining resource allocated or available resource for transmission of the packet, orperiodicity for generating the packet is met.3.The UE of claim 1, wherein the UE comprises a data collection entity, and the data collection entity is not configured to buffer the packet for retransmission after delivering the packet to the lower layer, and the data collection entity is configured to maintain the variable.4.The UE of claim 1, wherein the UE comprises a data collection entity, and the data collection entity is configured to buffer the packet for retransmission after delivering the packet to the lower layer.5.The UE of claim 4, wherein the data collection entity is further configured to perform one of the following:discarding the packet upon successful delivery of the packet to the lower layer and receiving a confirmation from the lower layer;discarding the packet upon expiration of a discard timer for the packet; ordiscarding the packet upon receiving a successful response from a peer data collection entity.6.The UE of claim 4, wherein the data collection entity is further configured tobased on determining that an indication is received, perform retransmission of the packet, wherein the indication indicates the packet is missing.7.The UE of claim 6, wherein the indication is received from the lower layer or a peer data collection entity.8.A user equipment (UE) , comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:assign, at a packet data convergence protocol (PDCP) entity of the UE, a sequence number (SN) for a packet for at least one type of logged data or for a segment of the packet; andperform security protection for the packet or for the segment based on the SN if configured with security protection.9.The UE of claim 8, wherein the PDCP entity is further configured to:based on determining that a size of the packet is greater than a first size supported by one PDCP service data unit (SDU) ,perform segmentation of the packet to generate at least one segment, anddetermine information related to the segmentation.10.The UE of claim 8, wherein the PDCP entity is configured to perform segmentation of the packet before performing security protection for the segment.11.The UE of claim 10, wherein the information related to the segmentation comprises at least one of the following:a second indication indicating whether the packet is segmented at beginning and / or at an end of the packet.12.The UE of claim 10, wherein the PDCP entity is configured to assign the SN for the packet by:assigning a unique SN for each of the at least one segment.13.A communication device, comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:perform a layer 2 (L2) handling procedure for each of multiple types of logged data based on configurations, wherein the configurations comprise a first configuration for a first type of logged data among the multiple types of logged data.14.The communication device of claim 13, wherein the first configuration comprises at least one of the following associated with the first type of logged data:a discard timer,a logical channel priority,a priority of the first type of logged data,a bucket size duration (BSD) ,a prioritized bit rate (PBR) ,logical channel restrictiona reordering timer,inter-type out of order delivery,a Poll Retransmit timer,a Receiving Discard timer,a Status Prohibit timer, ora resembling timer.15.The communication device of claim 13, wherein the communication device comprises a packet data convergence protocol (PDCP) entity, the PDCP entity acts as a transmitting (TX) PDCP entity, and the TX PDCP entity is configured to perform the L2 handling procedure by:starting or using independent discard timers for packets comprising the multiple types of logged data upon reception of the packets from the data collection entity, wherein each of the independent discard timers is associated with a respective one of the multiple types of logged data.16.The communication device of claim 13, wherein the communication device comprises a medium access control (MAC) entity, the MAC entity acts as a transmitting (TX) MAC entity, and the TX MAC entity is configured to perform the L2 handling procedure by:applying at least one of the following for the multiple types of logged data:independent logical priorities,independent bucket size durations (BSDs) , orindependent prioritized bit rates (PBRs) ;wherein each of the independent logical priorities is associated with a respective one of the multiple types of logged data, each of the independent BSDs is associated with a respective one of the multiple types of logged data, and each of the independent PBRs is associated with a respective one of the multiple types of logged data.17.The communication device of claim 13, wherein the communication device comprises a radio link control (RLC) entity, the RLC entity acts as a receiving (RX) RLC entity, and the RX RLC entity is configured to perform the L2 handling procedure by:starting or using independent resembling timers for packets comprising the multiple types of logged data, wherein each of the independent resembling timers is associated with a respective one of the multiple types of logged data.18.The communication device of claim 13, wherein the communication device comprises a packet data convergence protocol (PDCP) entity, the PDCP entity acts as a receiving (RX) PDCP entity, and the RX PDCP entity is configured to perform the L2 handling procedure by:starting or using independent reordering timers for packets comprising the multiple types of logged data, wherein each of the independent reordering timers is associated with a respective one of the multiple types of logged data.19.The communication device of claim 13, wherein the communication device comprises a packet data convergence protocol (PDCP) entity, the PDCP entity acts as a receiving (RX) PDCP entity, and the RX PDCP entity is configured to perform the L2 handling procedure by:delivering the multiple types of logged data out of order to the collection data entity; anddelivering the first type of logged data in order to the collection data entity.20.A processor for wireless communication, comprising:at least one memory; anda controller coupled with the at least one memory and configured to cause the controller to:generate a packet comprising at least one type of logged data based on at least one of the following:a first size requested by a network node,a second size of the logged data available for transmission,a first threshold,a maximum size supported by a lower layer of the UE, ora maximum allowed size of the lower layer of the UE; andtransmit the packet via the transceiver to a base station.