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WO2019197027A1 - Procédés et appareils d'exclusion sélective de système de modulation et de codage (mcs) - Google Patents

Procédés et appareils d'exclusion sélective de système de modulation et de codage (mcs) Download PDF

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Publication number
WO2019197027A1
WO2019197027A1 PCT/EP2018/059361 EP2018059361W WO2019197027A1 WO 2019197027 A1 WO2019197027 A1 WO 2019197027A1 EP 2018059361 W EP2018059361 W EP 2018059361W WO 2019197027 A1 WO2019197027 A1 WO 2019197027A1
Authority
WO
WIPO (PCT)
Prior art keywords
mcs
layer
coding scheme
processor
memory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2018/059361
Other languages
English (en)
Inventor
Silvio MANDELLI
Siegfried Klein
Le Hang Nguyen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Technologies Oy
Original Assignee
Nokia Technologies Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Technologies Oy filed Critical Nokia Technologies Oy
Priority to PCT/EP2018/059361 priority Critical patent/WO2019197027A1/fr
Publication of WO2019197027A1 publication Critical patent/WO2019197027A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
    • H04L1/0018—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement based on latency requirement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach

Definitions

  • Some example embodiments may generally relate to user plane (U- plane) layers in mobile or wireless telecommunication systems, such as Long Term Evolution (LTE) or fifth generation (5G) radio access technology or new radio (NR) access technology. Also, certain example embodiments may relate to medium access control (MAC) scheduling and/or related protocol layers, and service types such as ultra-reliable low-latency-communication (URLLC).
  • LTE Long Term Evolution
  • 5G fifth generation
  • NR new radio
  • MAC medium access control
  • URLLC ultra-reliable low-latency-communication
  • URLLC performance drastically increases (e.g., see dashed curve in Fig. 1), since the few users requiring a lot of resources are not in the system anymore.
  • this may be managed by systems similar to admission control (AC) or overload control (OC) in the RRC, or in higher layers in the 5GC managing interactions between gNBs.
  • AC admission control
  • OC overload control
  • a user if thrown out of the system, they may simply be demoted to a lower QoS DRB. This operation may be performed by the SDAP layer in the gNB-CU, which associates DRBs with their respective 5QI.
  • the signalling may pass through the Fl interface in case that the algorithm is run in the gNB (i.e., Fig. 3), or both the Fl and NG interface if the algorithm is running in the 5GC (i.e., Fig. 4).
  • the algorithm may be configured to lower MIN_MCS(C) to allow more low-rate MCS.
  • the delay budget may be composed of delays from encoding or decoding, SR, transmission, retransmissions, as well as from queueing.
  • MIN_MCS can be lowered if this does not cause individual transmissions to exceed their delay budget. So, certain example embodiments may be configured to take into account the queueing delay when deciding whether and how to modify the MIN MCS.
  • the receiving 500 may include receiving the request by one or more network node(s) at a layer that is higher than the MAC layer.
  • the layer that is higher than the MAC layer may include a RRC layer or a layer above RRC, such as 5GC.
  • the process may include, at 550, lowering the minimum MCS for the priority class and, at 570, indicating the updated minimum MCS to one or more gNB(s).
  • the indicating 570 may include informing the gNB(s) to change (e.g., lower) the minimum MCS for a specific 5QI.
  • the process may include, at 540, determining whether the load of the low rate MCS is impairing URLLC performance.
  • the process may include, at 560, increasing the minimum MCS to exclude more low rate MCS(s) from the system and, at 570, indicating the updated minimum MCS to one or more gNB(s).
  • the indicating 570 may include informing the gNB(s) to change (e.g., increase) the minimum MCS for a specific 5QI.
  • the process may further include expelling users or not accepting any more users for the specific 5QI. If it is determined that the load of the low rate MCS is not impairing URLLC performance, then the process may return to step 520.
  • apparatus 10 may include a processor 12 for processing information and executing instructions or operations.
  • processor 12 may be any type of general or specific purpose processor.
  • processor 12 may include one or more of general-purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs), field-programmable gate arrays (FPGAs), application- specific integrated circuits (ASICs), and processors based on a multi-core processor architecture, as examples. While a single processor 12 is shown in Fig. 6a, multiple processors may be utilized according to other example embodiments.
  • apparatus 10 may include two or more processors that may form a multiprocessor system (e.g., in this case processor 12 may represent a multiprocessor) that may support multiprocessing.
  • processor 12 may represent a multiprocessor
  • the multiprocessor system may be tightly coupled or loosely coupled (e.g., to form a computer cluster).
  • apparatus 10 may further include or be coupled to (internal or external) a drive or port that is configured to accept and read an external computer readable storage medium, such as an optical disc, USB drive, flash drive, or any other storage medium.
  • an external computer readable storage medium such as an optical disc, USB drive, flash drive, or any other storage medium.
  • the external computer readable storage medium may store a computer program or software for execution by processor 12 and/or apparatus 10.
  • memory 14 may store software modules that provide functionality when executed by processor 12.
  • the modules may include, for example, an operating system that provides operating system functionality for apparatus 10.
  • the memory may also store one or more functional modules, such as an application or program, to provide additional functionality for apparatus 10.
  • the components of apparatus 10 may be implemented in hardware, or as any suitable combination of hardware and software.
  • circuitry may also cover an implementation of merely a hardware circuit or processor (or multiple processors), or portion of a hardware circuit or processor, and its accompanying software and/or firmware.
  • circuitry may also cover, for example, a baseband integrated circuit in a server, cellular network node or device, or other computing or network device.
  • apparatus 10 when it is determined that the minimum MCS should be increased, apparatus 10 may be further controlled by memory 14 and processor 12 to expel users or stop accepting any more users for the specific 5QI, or to demote users to a lower QoS. If it is determined that the load of the low rate MCS is not impairing URLLC performance, then apparatus 10 may be controlled to continue to monitor an estimated distribution of latency experienced for successful packet transmission and the MCS used for at least one URLLC 5QI.
  • apparatus 20 may include one or more processors, one or more computer-readable storage medium (for example, memory, storage, or the like), one or more radio access components (for example, a modem, a transceiver, or the like), and/or a user interface.
  • apparatus 20 may be configured to operate using one or more radio access technologies, such as GSM, LTE, LTE-A, NR, 5G, WLAN, WiFi, NB-IoT, MulteFire, and/or any other radio access technologies.
  • apparatus 20 may include or be coupled to a processor 22 for processing information and executing instructions or operations.
  • processor 22 may be any type of general or specific purpose processor.
  • processor 22 may include one or more of general-purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs), field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), and processors based on a multi-core processor architecture, as examples. While a single processor 22 is shown in Fig. 6b, multiple processors may be utilized according to other example embodiments.
  • apparatus 20 may include two or more processors that may form a multiprocessor system (e.g., in this case processor 22 may represent a multiprocessor) that may support multiprocessing.
  • processor 22 may represent a multiprocessor
  • the multiprocessor system may be tightly coupled or loosely coupled (e.g., to form a computer cluster).
  • Processor 22 may perform functions associated with the operation of apparatus 20 including, as some examples, precoding of antenna gain/phase parameters, encoding and decoding of individual bits forming a communication message, formatting of information, and overall control of the apparatus 20, including processes related to management of communication resources.
  • transceiver 28 may be configured to modulate information on to a carrier waveform for transmission by the antenna(s) 25 and demodulate information received via the antenna(s) 25 for further processing by other elements of apparatus 20.
  • transceiver 28 may be capable of transmitting and receiving signals or data directly.
  • apparatus 10 may include an input and/or output device (FO device).
  • apparatus 20 may further include a user interface, such as a graphical user interface or touchscreen.
  • memory 24 stores software modules that provide functionality when executed by processor 22.
  • the modules may include, for example, an operating system that provides operating system functionality for apparatus 20.
  • the memory may also store one or more functional modules, such as an application or program, to provide additional functionality for apparatus 20.
  • the components of apparatus 20 may be implemented in hardware, or as any suitable combination of hardware and software.
  • apparatus 20 may optionally be configured to communicate with apparatus 10 via a wireless or wired communications link 70 according to any radio access technology, such as NR.
  • link 70 may represent the NG interface.
  • apparatus 20 may be controlled by memory 24 and processor 22 to determine whether the load of the low rate MCS is impairing URLLC performance. If it is determined that the load of the low rate MCS is impairing URLLC performance, then apparatus 20 may be controlled by memory 24 and processor 22 to increase the minimum MCS to exclude more low rate MCS(s) from the system and to indicate the updated minimum MCS to one or more gNB(s). In other words, in this example embodiment, apparatus 20 may be controlled to inform the gNB(s) to change (e.g., increase) the minimum MCS for a specific 5QI.
  • apparatus 20 may be controlled by memory 24 and processor 22 to expel users or stop accepting any more users for the specific 5QI, or to demote users to a lower QoS. If it is determined that the load of the low rate MCS is not impairing URLLC performance, then apparatus 20 may be controlled to continue to monitor an estimated distribution of latency experienced for successful packet transmission and the MCS used for at least one URLLC 5QI.
  • an apparatus may be included or be associated with at least one software application, module, unit or entity configured as arithmetic operation(s), or as a program or portions of it (including an added or updated software routine), executed by at least one operation processor.
  • Programs also called program products or computer programs, including software routines, applets and macros, may be stored in any apparatus-readable data storage medium and include program instructions to perform particular tasks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne des systèmes, des procédés, des appareils et des produits programmes d'ordinateur pour contrôler et/ou régler dynamiquement une valeur de système de modulation et de codage (MCS) dans des systèmes de communication. Un procédé peut consister à déterminer, par au moins un nœud de réseau dans une première couche, un paramètre représentant un indice d'un système de modulation et de codage (MCS) minimum qu'une couche de contrôle d'accès au support (MAC) est autorisée à planifier et/ou d'un système de modulation et de codage (MCS) maximum que la couche MAC ne peut pas planifier. Le procédé peut ensuite consister à transmettre le paramètre représentant l'indice du MCS minimum à une seconde couche.
PCT/EP2018/059361 2018-04-12 2018-04-12 Procédés et appareils d'exclusion sélective de système de modulation et de codage (mcs) Ceased WO2019197027A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/059361 WO2019197027A1 (fr) 2018-04-12 2018-04-12 Procédés et appareils d'exclusion sélective de système de modulation et de codage (mcs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/059361 WO2019197027A1 (fr) 2018-04-12 2018-04-12 Procédés et appareils d'exclusion sélective de système de modulation et de codage (mcs)

Publications (1)

Publication Number Publication Date
WO2019197027A1 true WO2019197027A1 (fr) 2019-10-17

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113824533A (zh) * 2020-06-19 2021-12-21 中兴通讯股份有限公司 确定调制编码方式mcs的方法、设备和存储介质
US20220094072A1 (en) * 2020-09-21 2022-03-24 Cisco Technology, Inc. Dynamic access point radio frequency power control for power over ethernet adaptation
WO2023230947A1 (fr) * 2022-06-01 2023-12-07 Qualcomm Incorporated Techniques pour une sélection de paramètres de communication sur la base de signaux de synchronisation de liaison latérale

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160219600A1 (en) * 2013-09-03 2016-07-28 Samsung Electronicas Co., Ltd. Downlink transmission method and user terminal equipment
US9668261B1 (en) * 2013-12-26 2017-05-30 Marvell International Ltd. Method and apparatus for transmitting wireless network operational information
CN106973411A (zh) * 2017-05-27 2017-07-21 武汉虹信通信技术有限责任公司 一种lte系统切换过程中的流量控制方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160219600A1 (en) * 2013-09-03 2016-07-28 Samsung Electronicas Co., Ltd. Downlink transmission method and user terminal equipment
US9668261B1 (en) * 2013-12-26 2017-05-30 Marvell International Ltd. Method and apparatus for transmitting wireless network operational information
CN106973411A (zh) * 2017-05-27 2017-07-21 武汉虹信通信技术有限责任公司 一种lte系统切换过程中的流量控制方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113824533A (zh) * 2020-06-19 2021-12-21 中兴通讯股份有限公司 确定调制编码方式mcs的方法、设备和存储介质
US20220094072A1 (en) * 2020-09-21 2022-03-24 Cisco Technology, Inc. Dynamic access point radio frequency power control for power over ethernet adaptation
US11991787B2 (en) * 2020-09-21 2024-05-21 Cisco Technology, Inc. Dynamic access point radio frequency power control for power over Ethernet adaptation
WO2023230947A1 (fr) * 2022-06-01 2023-12-07 Qualcomm Incorporated Techniques pour une sélection de paramètres de communication sur la base de signaux de synchronisation de liaison latérale

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