EP-4066572-B1 - QUALITY-OF-SERVICE AND QUALITY-OF-EXPERIENCE MONITORING

EP4066572B1EP 4066572 B1EP4066572 B1EP 4066572B1EP-4066572-B1

Inventors

SHA, XIUBIN
DAI, BO
LU, Ting
LI, DAPENG
TAN, JIE
NIU, Li

Dates

Publication Date: 20260506
Application Date: 20200807

Claims (4)

A method of wireless communication, comprising: transmitting, by a first network element to a second network element, a measurement request message; and receiving, subsequent to the transmitting, a measurement report message, wherein the measurement request message comprises a Time Sensitive Networking, TSN, Quality-of-Experience, QoE, related reporting indication, wherein the measurement report message comprises any available TSN QoE related information comprising at least one of: a 5G System synchronization accuracy report, a 5G System downlink delay report, a clock drift report, a burst spread report, a preconfigured uplink resource, PUR, or inactive data transmission, IDT, resource suitability report, or a survival time monitoring report, wherein the first network element is a 5G Core, 5GC, network element, wherein the second network element is a user equipment, UE or a gNB, wherein the measurement request message is a Non-Access-Stratum, NAS, Protocol Data Unit, PDU, or a NAS message and comprises a 5G System synchronization accuracy reporting indication, and and wherein the measurement report message is a NAS PDU or a NAS message and comprises a 5G System synchronization accuracy report, a first timestamp corresponding to a downlink transmission by the first network element, and a second timestamp corresponding to a reception of the downlink transmission by the second network element.
A method of wireless communication, comprising: receiving, by a second network element from a first network element, a measurement request message; performing, based on the measurement request message, one or more measurements to generate a measurement report message; and transmitting, to the first network element, the measurement report message, wherein the measurement request message comprises a Time Sensitive Networking, TSN, Quality-of-Experience, QoE, related reporting indication, wherein the measurement report message comprises any available TSN QoE related information comprising at least one of: a 5G System synchronization accuracy report, a 5G System downlink delay report, a clock drift report, a burst spread report, a preconfigured uplink resource, PUR, or inactive data transmission, IDT, resource suitability report, or a survival time monitoring report, wherein the first network element is a 5G Core, 5GC, network element, and wherein the second network element is a user equipment, UE, a gNB, wherein the measurement request message is a Non-Access-Stratum, NAS, Protocol Data Unit, PDU, or a NAS message and comprises a 5G System synchronization accuracy reporting indication, and wherein the measurement report message is a NAS PDU or a NAS message and comprises a 5G System synchronization accuracy report, a first timestamp corresponding to a downlink transmission by the first network element, and a second timestamp corresponding to a reception of the downlink transmission by the second network element.
The method of claim 1 or 2, wherein the measurement report message further comprises a third timestamp corresponding to a transmission of the measurement report message by the second network element.
A wireless communications apparatus comprising a processor and a memory, wherein the processor is configured to read code from the memory and implement a method recited in any of claims 1 to 3.

Description

TECHNICAL FIELD This document is directed generally to wireless communications. BACKGROUND Wireless communication technologies are moving the world toward an increasingly connected and networked society. The rapid growth of wireless communications and advances in technology has led to greater demand for capacity and connectivity. Other aspects, such as energy consumption, device cost, spectral efficiency, and latency are also important to meeting the needs of various communication scenarios. In comparison with the existing wireless networks, next generation systems and wireless communication techniques will provide support for an increased number of users and devices, as well as support for higher data rates. 3GPP Draft S2-1909136 is a related prior art document. SUMMARY The invention is specified by the independent claims. Preferred embodiments are defined in the dependent claims. In the following description, although numerous features may be designated as optional, it is nevertheless acknowledged that all features comprised in the independent claims are not to be read as optional. This document relates to methods, and devices for quality-of-service (QoS) and quality-of-experience (QoE) monitoring in mobile communication technology, including 5th Generation (5G) and New Radio (NR) communication systems. In one exemplary aspect, a wireless communication method according to claim 1 is disclosed. In another exemplary aspect, a wireless communication method according to independent claim 2 is disclosed. In yet another exemplary embodiment, a device that is configured or operable to perform the above-described methods is disclosed. The above and other aspects and their implementations are described in greater detail in the drawings, the descriptions, and the claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an example of a network node (e.g., base station or gNodeB) and a wireless device (e.g., user equipment (UE)) in wireless communication.FIG. 2 shows an example of a QoE reporting procedure.FIGS. 3A-3D show examples of time synchronization accuracy monitoring.FIGS. 4A-4C show examples of delay monitoring.FIGS. 5A-5E show examples of clock drift monitoring.FIGS. 6A-6C show examples of burst spread monitoring.FIG. 7 shows an example of PUR and/or IDT resource suitability reporting.FIGS. 8A-8C show examples of survival time monitoring.FIGS. 9A and 9B show examples of wireless communication methods.FIG. 10 is a block diagram representation of a portion of an apparatus that can be used to implement methods and techniques described in this document. DETAILED DESCRIPTION Network maintenance and parameter configuration optimization are usually costly and time-intensive, and impact the network quality-of-service (QoS) and quality-of-experience (QoE) metrics. In turn, the network maintenance and parameter configuration optimization depend on the QoS and QoE performance. In an example, once a degradation in the QoS and QoE performance is detected, network optimization and parameter configuration optimization can be performed. Embodiments of the disclosed technology are directed to automatically detecting the QoS and QoE and performing the subsequent optimizations. Existing implementations for this approach include Self-Organizing Networks (SON), Minimization of Drive Testing (MDT), and data collection for QoE. In the present documents, additional approaches, which include 5GS time synchronization accuracy monitoring, Semi-Persistent Scheduling (SPS)/Configured Grant (CG) burst spread monitoring, Predefined Uplink Resource (PUR) suitability, etc., are described. FIG. 1 shows an example of a wireless communication system (e.g., an LTE, 5G or New Radio (NR) cellular network) that includes a BS 120 and one or more user equipment (UE) 111, 112 and 113. In some embodiments, the downlink transmissions (141, 142, 143) include a measurement request message. In response, the UEs transmit (131, 132, 133) a measurement report to the BS 120. The UE may be, for example, a smartphone, a tablet, a mobile computer, a machine to machine (M2M) device, a terminal, a mobile device, an Internet of Things (IoT) device, and so on. FIG. 2 shows an example of a QoE reporting procedure, which includes the following steps between network element 1 (NE1) and network element 2 (NE2): Step 1: NE1 receives a QoE measurement request from NE2;Step 2: NE1 performs measurements according to QoE measurement request; andStep 3: NE1 reports the measurement result to NE2. In some embodiments, network element 1 may be a g-NodeB (gNB), a gNB-Centralized Unit (CU), a gNB-Distributed Unit (DU), a User Equipment (UE), or a smart device, and network element 2 may be QoC Collection Entity (QCE), a 5G Core (5GC) network, a gNB, a gNB-CU, or a gNB-DU. In some embodiments, the measurement request includes one or more of: 1. time synchronization accuracy reporting indication2. 5GS (TSN bridge) delay reporting indication3. clock drift reporting indication4. burst s