WO2020027533A1 - Procédé et appareil d'exploitation d'équipement à base de trame pour nr sans licence - Google Patents

Procédé et appareil d'exploitation d'équipement à base de trame pour nr sans licence Download PDF

Info

Publication number
WO2020027533A1
WO2020027533A1 PCT/KR2019/009455 KR2019009455W WO2020027533A1 WO 2020027533 A1 WO2020027533 A1 WO 2020027533A1 KR 2019009455 W KR2019009455 W KR 2019009455W WO 2020027533 A1 WO2020027533 A1 WO 2020027533A1
Authority
WO
WIPO (PCT)
Prior art keywords
lbt
transmission
cot
reception
fbe
Prior art date
Application number
PCT/KR2019/009455
Other languages
English (en)
Inventor
Yingzhe Li
Hongbo Si
Qiongjie LIN
Original Assignee
Samsung Electronics Co., Ltd.
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
Priority claimed from US16/522,588 external-priority patent/US11140708B2/en
Application filed by Samsung Electronics Co., Ltd. filed Critical Samsung Electronics Co., Ltd.
Priority to KR1020217006076A priority Critical patent/KR20210029278A/ko
Publication of WO2020027533A1 publication Critical patent/WO2020027533A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • H04W74/0891—Non-scheduled access, e.g. ALOHA using a dedicated channel for access for synchronized access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • H04W74/0875—Non-scheduled access, e.g. ALOHA using a dedicated channel for access with assigned priorities based access

Definitions

  • the UE further includes a transceiver configured to transmit to or receive from a base station (BS) over the operating channel during the COT, and switch from the UL transmission to the DL reception or from the DL reception to the UL transmission based on the identified one or more switching points.
  • BS base station
  • FIGS.2A and 2B illustrate example wireless transmit and receive paths according to this disclosure
  • FIG. 9 illustrates an exemplary fixed frame period for FBE operations according to one embodiment of the present disclosure
  • FIG. 31 illustrates another exemplary guard period timing relation for DL and UL switching points according to one embodiment of the present disclosure
  • the processor is further configured to: determine whether each of the one or more switching points occurs within a gap after (i) a last UL reception when switching from the UL reception to the DL transmission occurs or (ii) a last DL transmission when switching from the DL transmission to the UL reception occurs; in response to each of the one or more switching points within the gap, perform a switching between the UL reception and the DL transmission, without performing an LBT; and in response to of the one or more switching points occurring outside of the gap: cause the transceiver to perform an LBT ending prior to each of the one or more switching points; or extend a cyclic prefix of a perspective DL transmission such that a prospective DL transmission starts within the gap after an end of the last DL transmission, wherein the gap is a short interframe space (SIFS) duration.
  • SIFS short interframe space
  • a maximum allowed number of LBT attempts at each of the one or more switching points between the DL transmission to the UL reception is configured to be one of: a predefined fixed number; or a scalable number which is non-decreasing with respect to a duration of a perspective UL transmission after each of the one or more switching points between the DL transmission and the UL reception, wherein a time interval between adjacent LBT attempts is configurable such that: a new LBT attempt immediately restarts if a previous LBT attempt fails; a new LBT attempt starts at one of a next symbol boundary, a next mini-slot boundary, or a next slot boundary; or a new LBT is attempted such that a perspective DL transmission starts at one of the next symbol boundary, the next mini-slot boundary, or the next slot boundary.
  • the at least one processor is further configured to cause the transceiver to transmit a preamble signal, wherein: in a frequency domain, the preamble sequence is mapped to subcarriers in which subcarrier indexes for which any two adjacent preamble sequence elements are mapped to be differed by a same fixed number N ; and in a time domain, the preamble sequence is transmitted with a periodic repetition pattern with the periodicity of 1/( N * a subcarrier spacing of the preamble signal).
  • the gNB 103 provides wireless broadband access to the network 130 for a second plurality of UEs within a coverage area 125 of the gNB 103.
  • the second plurality of UEs includes the UE 115 and the UE 116.
  • one or more of the gNBs 101-103 may communicate with each other and with the UEs 111-116 using 5G, long-term evolution (LTE), LTE-A, WiMAX, or other advanced wireless communication techniques.
  • LTE long-term evolution
  • LTE-A long-term evolution
  • WiMAX Worldwide Interoperability for Microwave Access
  • the receive path 250 includes a down-converter (DC) 255, a remove cyclic prefix block 260, a serial-to-parallel (S-to-P) block 265, a size N Fast Fourier Transform (FFT) block 270, a parallel-to-serial (P-to-S) block 275, and a channel decoding and demodulation block 280.
  • DC down-converter
  • S-to-P serial-to-parallel
  • FFT Fast Fourier Transform
  • P-to-S parallel-to-serial
  • the gNB 102 includes multiple antennas 370a-370n, multiple RF transceivers 372a-372n, transmit (TX) processing circuitry 374, and receive (RX) processing circuitry 376.
  • the multiple antennas 370a-370n include 2D antenna arrays.
  • the gNB 102 also includes a controller/processor 378, a memory 380, and a backhaul or network interface 382.
  • FIG. 6 illustrates an example of a large number of antenna elements for mmWave bands according to one embodiment of the present disclosure.
  • the embodiment shown in FIG. 6 is for illustration only. Other embodiments could be used without departing from the scope of the present disclosure
  • beam identification is not acquired or detected from synchronization signal(s). Instead, beam ID is carried by a beam (RR) acquisition signal such as measurement RS. Likewise, beam (RR) acquisition signal does not carry cell ID (hence, cell ID is not detected from beam or RR acquisition signal).
  • PBCH is primarily used to signal the Master Block Information (MIB) which consists of DL and UL system bandwidth information (3 bits), PHICH information (3 bits), and SFN (8 bits). Adding 10 reserved bits (for other uses such as MTC), the MIB payload amounts to 24 bits.
  • MIB Master Block Information
  • the resulting QPSK symbol stream is transmitted across 4 subframes spread over 4 radio frames.
  • Other than detecting MIB blind detection of the number of CRS ports is also needed for PBCH.
  • FIG. 9 illustrates an exemplary fixed frame period for FBE operations according to one embodiment of the present disclosure.
  • the embodiment shown in FIG. 9 is for illustration only. Other embodiments could be used without departing from the scope of the present disclosure
  • an FBE operation mode can be supported for FR1 NR-U operating on the 6 GHz unlicensed/shared band.
  • the preamble can be utilized to facilitate the handshake exchange between the initiating device and the responding device, wherein the preamble can be served as a channel access request (CARQ) message/sequence.
  • CARQ channel access request
  • the preamble detection scheme detailed in the above examples can be extended to LBE-based channel access schemes as well.
  • FIG. 15 illustrates an exemplary FBE channel access scheme with one or multiple synchronized FBE NR-U operators coexisting in the operating channel according to one embodiment of the present disclosure.
  • the embodiment shown in FIG. 15 is for illustration only. Other embodiments could be used without departing from the scope of the present disclosure.
  • the LBT process can be considered as successful if LBTs on all of the assigned observation slot are successful.
  • gNBs of one operator 1 can be assigned more observation slots than gNBs of operator 2, such that operator 2 can have higher access priority to the operating channel than operator 1.
  • each initiating FBE NR-U device can perform directional LBT over directional spatial RX parameter(s).
  • the FBE NR-U device can determine the start timing of the FFP, the FFP duration, and the COT duration configuration of its neighboring FBE NR-U device through monitoring the energy of neighboring transmissions.
  • the FBE NR-U device can determine the start timing of the FFP, the FFP duration, and the COT duration configuration of its neighboring FBE NR-U device through monitoring the channels/signals of neighboring transmissions that contains the corresponding configuration information. For instance, the preamble as detailed in the second approach of the Embodiment 3.
  • T2 or N3 can also be infinite.
  • the UE monitoring behavior in this phase can be configured by higher layer and/or DCI, such that UE only monitors for FBE NR-U channels/signals for a subset duration of this phase.
  • this monitoring phase can be referred to as Phase C .
  • the COT can be obtained by the UE through LBT operation similar to category-4 (CAT-4) LBT of LTE-LAA for LBE-based NR-U, or if UE is initiating device for FBE-based NR-U.
  • CAT-4 category-4
  • the maximum number of switching points can be predefined in the spec, wherein the number is scalable with the LBT priority class, such as being non-decreasing as the LBT priority class increases, i.e., NR-U has lower priority to access the channel.
  • the maximum number of switching points can be increased with the FFP duration for FBE-based NR-U.
  • the maximum number of switching points can be increased when the subcarrier spacing for NR-U increases.
  • gNB can transmit a reservation signal starting at time instance t , which is within [t 1 + T gNB UL-DL , t 1 +SIFS]; and end at t 1 + N TA, offset *T c , wherein t 1 refers to the end of UL reception at gNB, as illustrated in FIG. 8; in this case the LBT is not required by the gNB.
  • This option needs SIFS to be no smaller than T gNB UL-DL , i.e., the gNB UL (reception) to DL (transmission) RF switching time.
  • carrier sense clear channel assessment (CS/CCA) mechanism (or preamble detection mechanism) can be utilized by NR-U as the supported channel access procedures.
  • CS/CCA carrier sense clear channel assessment
  • the channel is considered as busy by an NR-U device if any NR-U common preamble is detected and the corresponding received power of the detected preamble at the NR-U device exceeds the CS/CCA detection threshold or preamble detection threshold (PDT) within a certain channel sensing duration.
  • PDT preamble detection threshold

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Selon l'invention, un équipement utilisateur (UE) comprend au moins un processeur configuré pour identifier un mécanisme d'accès à un canal pour accéder à un canal d'exploitation d'une bande sans licence, pour effectuer une opération d'écoute avant de parler (LBT) sur le canal d'exploitation en fonction du mécanisme d'accès au canal identifié et pour obtenir un temps d'occupation de canal (COT) pour l'émission et la réception sur le canal d'exploitation après le succès de l'opération LBT, et pour identifier, dans le COT, un ou plusieurs points de commutation pour que l'UE commute d'une émission de liaison montante (UL) à une réception de liaison descendante (DL) ou d'une réception DL à une émission UL. L'UE comprend en outre un émetteur-récepteur configuré pour émettre ou recevoir d'une station de base (BS) sur le canal d'exploitation pendant le COT, et pour commuter de l'émission UL à la réception DL ou de la réception DL à l'émission UL sur la base du ou des points de commutation identifiés.
PCT/KR2019/009455 2018-07-30 2019-07-30 Procédé et appareil d'exploitation d'équipement à base de trame pour nr sans licence WO2020027533A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020217006076A KR20210029278A (ko) 2018-07-30 2019-07-30 Nr 비면허의 프레임 기반 장비 동작을 위한 방법 및 장치

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
US201862711939P 2018-07-30 2018-07-30
US62/711,939 2018-07-30
US201862713840P 2018-08-02 2018-08-02
US62/713,840 2018-08-02
US201862715042P 2018-08-06 2018-08-06
US62/715,042 2018-08-06
US201862719917P 2018-08-20 2018-08-20
US62/719,917 2018-08-20
US201862731485P 2018-09-14 2018-09-14
US62/731,485 2018-09-14
US16/522,588 2019-07-25
US16/522,588 US11140708B2 (en) 2018-07-30 2019-07-25 Method and apparatus for frame based equipment operation of NR unlicensed

Publications (1)

Publication Number Publication Date
WO2020027533A1 true WO2020027533A1 (fr) 2020-02-06

Family

ID=69231379

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/009455 WO2020027533A1 (fr) 2018-07-30 2019-07-30 Procédé et appareil d'exploitation d'équipement à base de trame pour nr sans licence

Country Status (2)

Country Link
KR (1) KR20210029278A (fr)
WO (1) WO2020027533A1 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020197710A1 (fr) * 2019-03-26 2020-10-01 Qualcomm Incorporated Décalage initial pour une transmission sens montant d'une nouvelle radio (nr-u) sans licence
US20210100030A1 (en) * 2019-09-26 2021-04-01 Lg Electronics Inc. Method and apparatus for transmitting and receiving signal in wireless communication system
US20210307070A1 (en) * 2020-03-26 2021-09-30 Electronics And Telecommunications Research Institute Uplink transmission method for ultra-reliability and low-latency communication, and apparatus therefor
WO2021214730A1 (fr) * 2020-04-23 2021-10-28 Telefonaktiebolaget Lm Ericsson (Publ) Programmation cot/ffp dans un spectre sans licence
US20210400589A1 (en) * 2018-09-28 2021-12-23 Apple Inc. Techniques to reduce radio resource management measurements and user equipment power consumption
CN113973391A (zh) * 2020-07-24 2022-01-25 诺基亚技术有限公司 确定用于上行链路传输的循环前缀（cp）扩展和先听后说（lbt）类型
WO2022019631A1 (fr) * 2020-07-24 2022-01-27 Samsung Electronics Co., Ltd. Demande d'accès à un canal dans une transmission en liaison descendante
WO2022025817A1 (fr) * 2020-07-31 2022-02-03 Telefonaktiebolaget Lm Ericsson (Publ) Technique de communication radio destinée à la gestion de temps d'inactivité
WO2022030945A1 (fr) * 2020-08-06 2022-02-10 엘지전자 주식회사 Procédé et appareil pour émettre et recevoir un signal dans un système de communication sans fil
WO2022047687A1 (fr) * 2020-09-03 2022-03-10 Qualcomm Incorporated Temps d'occupation de canal (cot) d'équipement d'utilisateur en mode pdcch déclenché dans un mode d'équipement en mode trame (fbe)
CN114916083A (zh) * 2021-02-09 2022-08-16 维沃移动通信有限公司 信道测量方法、lbt失败上报方法、装置及设备
CN115066946A (zh) * 2020-02-13 2022-09-16 高通股份有限公司 以基于帧的装备模式在固定帧周期的起始处传送上行链路数据
WO2022233330A1 (fr) * 2021-05-07 2022-11-10 Essen Innovation Company Limited Équipement utilisateur, station de base et procédé d'accès à un canal
CN115516986A (zh) * 2020-04-20 2022-12-23 高通股份有限公司 用于新无线电-未许可（nr-u）中基于帧的设备模式的上行链路通信验证
EP4106380A4 (fr) * 2020-02-13 2023-10-25 Ntt Docomo, Inc. Terminal et procédé de communication
EP4173392A4 (fr) * 2020-08-05 2024-03-13 Apple Inc. Techniques de détection de canal d'équipement basées sur une trame de spectre sans licence
EP4233445A4 (fr) * 2021-01-25 2024-04-03 Samsung Electronics Co., Ltd. Procédé et équipement utilisateur permettant de déterminer une ressource de communication en liaison latérale

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023056054A1 (fr) * 2021-10-01 2023-04-06 Intel Corporation Transmissions basées sur la priorité et indications d'annulation dans un mode d'accès à un canal semi-statique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016072776A1 (fr) * 2014-11-07 2016-05-12 주식회사 아이티엘 Procédé et dispositif de communication sans fil à base de laa
WO2017131470A1 (fr) * 2016-01-27 2017-08-03 엘지전자 주식회사 Procédé pour recevoir un signal de liaison descendante, dans un système de communication sans fil prenant en charge une bande sans licence, et dispositif le prenant en charge
WO2017155305A1 (fr) * 2016-03-08 2017-09-14 엘지전자 주식회사 Procédé d'émission et de réception d'un signal de liaison montante dans un système de communication sans fil prenant en charge une bande sans licence, et appareil prenant en charge celui-ci
US20180115992A1 (en) * 2015-05-13 2018-04-26 Lg Electronics Inc. Method for channel sensing in wireless communication system and apparatus therefor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016072776A1 (fr) * 2014-11-07 2016-05-12 주식회사 아이티엘 Procédé et dispositif de communication sans fil à base de laa
US20180115992A1 (en) * 2015-05-13 2018-04-26 Lg Electronics Inc. Method for channel sensing in wireless communication system and apparatus therefor
WO2017131470A1 (fr) * 2016-01-27 2017-08-03 엘지전자 주식회사 Procédé pour recevoir un signal de liaison descendante, dans un système de communication sans fil prenant en charge une bande sans licence, et dispositif le prenant en charge
WO2017155305A1 (fr) * 2016-03-08 2017-09-14 엘지전자 주식회사 Procédé d'émission et de réception d'un signal de liaison montante dans un système de communication sans fil prenant en charge une bande sans licence, et appareil prenant en charge celui-ci

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SAMSUNG: "LAA performance analysis on FBE and LBE for reuse-I", RL-151628, 3GPP TSG RAN WG1 MEETING #80BIS, 10 April 2015 (2015-04-10), Belgrade, Serbia, XP050934498 *

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12022398B2 (en) * 2018-09-28 2024-06-25 Apple Inc. Techniques to reduce radio resource management measurements and user equipment power consumption
US20210400589A1 (en) * 2018-09-28 2021-12-23 Apple Inc. Techniques to reduce radio resource management measurements and user equipment power consumption
US11743911B2 (en) 2019-03-26 2023-08-29 Qualcomm Incorporated Starting offset for new radio-unlicensed (NR-U) uplink transmission
US11032812B2 (en) 2019-03-26 2021-06-08 Qualcomm Incorporated Starting offset for new radio-unlicensed (NR-U) uplink transmission
WO2020197710A1 (fr) * 2019-03-26 2020-10-01 Qualcomm Incorporated Décalage initial pour une transmission sens montant d'une nouvelle radio (nr-u) sans licence
US20210100030A1 (en) * 2019-09-26 2021-04-01 Lg Electronics Inc. Method and apparatus for transmitting and receiving signal in wireless communication system
US11785639B2 (en) * 2019-09-26 2023-10-10 Lg Electronics Inc. Method and apparatus for transmitting and receiving signal in wireless communication system
EP4106380A4 (fr) * 2020-02-13 2023-10-25 Ntt Docomo, Inc. Terminal et procédé de communication
CN115066946A (zh) * 2020-02-13 2022-09-16 高通股份有限公司 以基于帧的装备模式在固定帧周期的起始处传送上行链路数据
US20210307070A1 (en) * 2020-03-26 2021-09-30 Electronics And Telecommunications Research Institute Uplink transmission method for ultra-reliability and low-latency communication, and apparatus therefor
US11716761B2 (en) * 2020-03-26 2023-08-01 Electronics And Telecommunications Research Institute Uplink transmission method for ultra-reliability and low-latency communication, and apparatus therefor
EP4140239A4 (fr) * 2020-04-20 2024-01-03 Qualcomm Incorporated Validation de communication de liaison montante pour un mode d'équipement basé sur une trame dans un système new radio sans licence (nr-u)
CN115516986A (zh) * 2020-04-20 2022-12-23 高通股份有限公司 用于新无线电-未许可（nr-u）中基于帧的设备模式的上行链路通信验证
WO2021214730A1 (fr) * 2020-04-23 2021-10-28 Telefonaktiebolaget Lm Ericsson (Publ) Programmation cot/ffp dans un spectre sans licence
CN113973391A (zh) * 2020-07-24 2022-01-25 诺基亚技术有限公司 确定用于上行链路传输的循环前缀（cp）扩展和先听后说（lbt）类型
CN113973391B (zh) * 2020-07-24 2024-05-10 诺基亚技术有限公司 确定用于上行链路传输的循环前缀（cp）扩展和先听后说（lbt）类型
US11903020B2 (en) 2020-07-24 2024-02-13 Samsung Electronics Co., Ltd. Channel access request in a downlink transmission
WO2022019631A1 (fr) * 2020-07-24 2022-01-27 Samsung Electronics Co., Ltd. Demande d'accès à un canal dans une transmission en liaison descendante
WO2022025817A1 (fr) * 2020-07-31 2022-02-03 Telefonaktiebolaget Lm Ericsson (Publ) Technique de communication radio destinée à la gestion de temps d'inactivité
EP4173392A4 (fr) * 2020-08-05 2024-03-13 Apple Inc. Techniques de détection de canal d'équipement basées sur une trame de spectre sans licence
US11864230B2 (en) 2020-08-06 2024-01-02 Lg Electronics Inc. Method and apparatus for transmitting and receiving signal in wireless communication system
KR102620304B1 (ko) 2020-08-06 2023-12-29 엘지전자 주식회사 무선 통신 시스템에서 신호 송수신 방법 및 장치
KR20220065796A (ko) * 2020-08-06 2022-05-20 엘지전자 주식회사 무선 통신 시스템에서 신호 송수신 방법 및 장치
WO2022030945A1 (fr) * 2020-08-06 2022-02-10 엘지전자 주식회사 Procédé et appareil pour émettre et recevoir un signal dans un système de communication sans fil
WO2022047687A1 (fr) * 2020-09-03 2022-03-10 Qualcomm Incorporated Temps d'occupation de canal (cot) d'équipement d'utilisateur en mode pdcch déclenché dans un mode d'équipement en mode trame (fbe)
EP4233445A4 (fr) * 2021-01-25 2024-04-03 Samsung Electronics Co., Ltd. Procédé et équipement utilisateur permettant de déterminer une ressource de communication en liaison latérale
CN114916083B (zh) * 2021-02-09 2023-06-20 维沃移动通信有限公司 信道测量方法、lbt失败上报方法、装置及设备
WO2022171005A1 (fr) * 2021-02-09 2022-08-18 维沃移动通信有限公司 Procédé et appareil de mesure de canal, procédé et appareil de rapport de défaillance de lbt, et dispositif
CN114916083A (zh) * 2021-02-09 2022-08-16 维沃移动通信有限公司 信道测量方法、lbt失败上报方法、装置及设备
WO2022233330A1 (fr) * 2021-05-07 2022-11-10 Essen Innovation Company Limited Équipement utilisateur, station de base et procédé d'accès à un canal

Also Published As

Publication number Publication date
KR20210029278A (ko) 2021-03-15

Similar Documents

Publication Publication Date Title
WO2020204449A1 (fr) Procédé et appareil de fonctionnement d'équipement à base de trame pour nr sans licence
WO2020027533A1 (fr) Procédé et appareil d'exploitation d'équipement à base de trame pour nr sans licence
WO2022146102A1 (fr) Procédé et appareil permettant un accès aléatoire dans des systèmes de communication sans fil
WO2019240549A1 (fr) Procédé et appareil concernant des améliorations d'accès aléatoire nr pour des opérations sans licence
WO2019146986A1 (fr) Écoute avant transmission pour opération à large bande de spectre nr sans licence
WO2019088680A1 (fr) Procédé et appareil pour une configuration coreset rmsi dans un système de communication sans fil
WO2020017928A1 (fr) Procédé et appareil d'amélioration de mesure rrm pour une nr sans licence
WO2020067687A1 (fr) Procédé et appareil d'adaptation de taille de fenêtre de contention pour technologie 5g nr sans licence
WO2019124983A1 (fr) Procédé et appareil d'indication de faisceau dans des systèmes sans fil de nouvelle génération
EP3656161A1 (fr) Appareil et procédé pour emplacements temporels de blocs ss et composition de séquences ss pour spectre nr sans licence
WO2018203708A1 (fr) Procédé et appareil d'indice de bloc de signal de synchronisation et d'indication de temporisation dans des systèmes sans fil
WO2019182428A1 (fr) Procédé et appareil de conception de signal d'économie d'énergie en nr
WO2019182429A1 (fr) Procédé et appareil de gestion de faisceau destinés à une transmission à flux multiples
WO2019093764A1 (fr) Procédé et appareil de gestion de faisceau dans le spectre sans licence
WO2019190251A1 (fr) Procédé et appareil permettant de prendre en charge un espacement de sous-porteuse important pour un bloc ss/pbch
WO2019124891A1 (fr) Procédé et appareil pour bloc d'accès initial sur un spectre sans licence nr autonome
WO2018174689A1 (fr) Appareil et procédé pour des signaux de synchronisation améliorés pour des améliorations de couverture d'équipement d'utilisateur bon marché
WO2022131814A1 (fr) Procédé et appareil pour procédures d'accès aléatoire simultanées
WO2018052275A1 (fr) Procédé et appareil pour transmettre des signaux d'accès initiaux dans des systèmes de communication sans fil
WO2021172942A1 (fr) Procédé et appareil permettant de prendre en charge un canal d'indication de faisceau
WO2016167623A1 (fr) Procédé de transmission de données de liaison montante dans un système de communication sans fil et dispositif s'y rapportant
WO2018194352A1 (fr) Procédé et dispositif de régulation de puissance de liaison montante
EP3596984A1 (fr) Procédé et dispositif de régulation de puissance de liaison montante
WO2022245190A1 (fr) Limitation de l'exposition aux radiofréquences
WO2019022481A1 (fr) Procédé et appareil pour signaux de synchronisation et amélioration de bloc pbch

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19844386

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20217006076

Country of ref document: KR

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 19844386

Country of ref document: EP

Kind code of ref document: A1