WO2015018010A1 - Procédé de mise en œuvre d'une communication en multidiffusion de type de dispositif à dispositif (d2d) dans un réseau cellulaire - Google Patents

Procédé de mise en œuvre d'une communication en multidiffusion de type de dispositif à dispositif (d2d) dans un réseau cellulaire Download PDF

Info

Publication number
WO2015018010A1
WO2015018010A1 PCT/CN2013/081008 CN2013081008W WO2015018010A1 WO 2015018010 A1 WO2015018010 A1 WO 2015018010A1 CN 2013081008 W CN2013081008 W CN 2013081008W WO 2015018010 A1 WO2015018010 A1 WO 2015018010A1
Authority
WO
WIPO (PCT)
Prior art keywords
user equipment
cellular network
coverage
information
multicast group
Prior art date
Application number
PCT/CN2013/081008
Other languages
English (en)
Chinese (zh)
Other versions
WO2015018010A9 (fr
Inventor
孟艳
蒋琦
韩锋
Original Assignee
上海贝尔股份有限公司
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 上海贝尔股份有限公司 filed Critical 上海贝尔股份有限公司
Priority to PCT/CN2013/081008 priority Critical patent/WO2015018010A1/fr
Priority to CN201380078311.3A priority patent/CN105409296B/zh
Priority to TW103126907A priority patent/TW201521494A/zh
Publication of WO2015018010A1 publication Critical patent/WO2015018010A1/fr
Publication of WO2015018010A9 publication Critical patent/WO2015018010A9/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/327—Power control of multicast channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present invention relates to cellular communication networks, and more particularly to a method of implementing device-to-device based multicast communication in a cellular network. Background technique
  • the feasibility study of proximity-based services has determined the valuable services that can be provided by the 3GPP system based on the proximity of user equipments.
  • the identified areas include Public Safety and no-Public-Safe services of interest to operators and users.
  • SI New Study Project
  • D2D LTE device to device
  • - Multicast is a one-way communication from the first user equipment to all other user equipments in the group;
  • - Broadcast is a one-way communication from the first user equipment to all other user equipment.
  • a user distribution scheme for simulation evaluation has been agreed in AN1.
  • the present invention proposes three application scenarios for applying D2D-based multicast communication to an existing cellular network.
  • Scenario 1 All user equipments in a multicast group are within the coverage of the cellular network.
  • the present invention proposes a method for configuring transmission power for an initiating user equipment in a device-to-device communication-based multicast group in a base station of a cellular network, the group All user equipments in the broadcast group are located within the coverage of the cellular network, and the method includes the following steps: A. determining a predetermined transmission power of the initiating user equipment; B. receiving the initiation from the initiating user equipment Receiving, by the user equipment, each of the multicast groups, channel condition information of the user equipment; C. based on the predetermined transmission power and the received channel of the initiating user equipment to each of the multicast groups receiving the user equipment Status information, configuring transmission power for the initiating user equipment; and D. transmitting transmission power configured for the initiating user equipment to the initiating user equipment.
  • the step C further includes: based on the predetermined transmission power, the initiating user equipment to each of the multicast groups receiving the user The channel status information of the device and the uplink interference situation of the initiating user equipment to the neighboring cellular user equipment, and configuring the transmission power for the initiating user equipment.
  • the step A comprises: determining the predetermined transmission power of the initiating user equipment based on a path loss condition between the initiating user equipment and the base station.
  • the channel status information comprises any of the following:
  • the originating user equipment to each of the multicast groups receives HARQ information of the user equipment
  • the initiating user equipment to each of the multicast groups receives path loss information of the user equipment.
  • the present invention provides a method for assisting a base station in a cellular network to configure transmission power for the initiating user equipment in the initiating user equipment in the device-to-device communication-based multicast group, All user devices in the multicast group are located in the In the coverage of the cellular network, the method includes the following steps: a. acquiring channel state information of the user equipment to the user equipment in the multicast group; b. Transmitting, by the device, channel status information of each receiving user equipment in the multicast group to the base station; c. receiving transmission power configured by the base station for the sending user equipment.
  • Scenario 2 Some user equipments in the multicast group are within the coverage of the cellular network, and another part of the user equipment is outside the coverage of the cellular network.
  • the present invention proposes a method for selecting a relay user equipment for device-to-device based multicast communication in a base station of a cellular network, the group of multicast communication
  • a part of the user equipment in the broadcast group is located in the coverage of the cellular network, and another part of the user equipment is located outside the coverage of the cellular network
  • the method includes the following steps: i. receiving each of the plurality of potential user equipments separately The number of user equipments detected by the potential user equipment outside the coverage of the cellular network; and ii. based on the received user equipment detected by each potential user equipment outside the coverage of the cellular network And selecting one user equipment from the plurality of potential user equipments as the relay user equipment.
  • the method further comprises the steps of: receiving, from the plurality of potential user equipments, path loss information of each of the potential user equipments to user equipments located outside the coverage of the cellular network in the multicast group, respectively;
  • the step ii includes: determining, according to each received potential user equipment, the number of user equipments outside the coverage of the cellular network and each of the received potential devices to be located in the multicast group.
  • the path loss information of the user equipment outside the coverage of the cellular network and selecting one user equipment from the plurality of potential user equipments as the relay user equipment.
  • the present invention provides a method for assisting a base station in a cellular network to select a relay user equipment in a potential user equipment in a device-to-device communication-based multicast group, the multicast group.
  • a portion of the user equipment is located within the coverage of the cellular network, and another portion of the user equipment is located outside the coverage of the cellular network, the method comprising the steps of: detecting a user equipment located outside the coverage of the cellular network Transmission of training signaling, the training signaling includes a synchronization sequence, an identity of the user equipment and an information part; and the detected coverage of the cellular network
  • the number of user equipments outside the range is sent to the base station.
  • the method further comprises the steps of: determining path loss information of the potential user equipment to a user equipment in the multicast group that is outside the coverage of the cellular network; and determining the determined potential user equipment to Path loss information of user equipments located outside the coverage of the cellular network in the multicast group is sent to the base station.
  • the present invention provides a user equipment located outside a coverage of a cellular network in a device-to-device communication-based multicast group for assisting a base station in the cellular network to select a relay user equipment.
  • the method the part of the user equipment in the multicast group is located in the coverage of the cellular network, and another part of the user equipment is located outside the coverage of the cellular network, the method includes the following steps: sending training signaling,
  • the training signaling includes a synchronization sequence, an identity of the user equipment, and an information part.
  • Scenario 3 All user equipments in a multicast group are not covered by the cellular network.
  • the present invention provides, in an embodiment, a method for performing multicast transmission in a user equipment in a device-to-device communication-based multicast group, all in the multicast group.
  • the user equipment is not in the coverage of the cellular network, and the method includes the following steps: I. Listening to the carrier to determine whether the carrier is in an idle state; II. If the carrier is in an idle state, at a fixed time In the window, the information is transmitted in a predetermined frame structure, the frame structure comprises two parts, the first part comprises a synchronization sequence, the synchronization sequence is generated by a unique identity of the user equipment, and the second part comprises a reference signal, a CRC check Code and information to be transmitted; III.
  • FIG. 1 illustrates all user equipments in a multicast group according to an embodiment of the present invention. a schematic diagram of the network within the coverage of the cellular network;
  • FIG. 2 is a schematic diagram of a network in which a part of user equipments in a multicast group are outside the coverage of the cellular network within the coverage of the cellular network according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a network in which all user equipments in a multicast group are not in coverage of a cellular network according to an embodiment of the present invention
  • FIG. 4 shows a frame structure diagram for multicast communication in accordance with one embodiment of the present invention
  • FIG. 5 is a flow chart showing a method for user equipment to perform multicast communication according to an embodiment of the present invention.
  • Figure 6 shows a timeline diagram of multicast communication in accordance with one embodiment of the present invention.
  • Application Scenario 1 All user equipments in the multicast group are within the coverage of the cellular network (as shown in Figure 1).
  • the multicast communication between user equipments will be completely controlled by the network side (ie, the base station).
  • the base station transmits data to some user equipments in the multicast group on some dedicated subframes, and schedules other user equipments in the multicast group to receive data on the same dedicated subframe.
  • the base station will also control the QoS (Quality of Service) of the D2D link, such as the HARQ process.
  • QoS Quality of Service
  • the user equipments 21, 22, and 23 constitute a multicast group based on D2D communication, wherein the user equipment 21 is a user equipment, and when the user equipment 21 transmits information, the user equipment 22 And 23 receive the information.
  • User equipment 20 is a cellular user equipment that communicates with base station 10.
  • the base station 10 first determines the predetermined transmission power of the initiating user equipment 21. For example, the base station 10 can determine the predetermined transmission power of the initiating user equipment 21 based on the path loss condition between the initiating user equipment 21 and the present base station 10. When the path loss between the initiating user equipment 21 and the base station 10 is large, correspondingly, the determined value of the predetermined transmission power may also be larger, and vice versa.
  • the base station 10 receives from the initiating user equipment 21 the channel status information of each of the initiating user equipment 21 to the receiving user equipment 22, 23 in the multicast group.
  • the channel condition information may be, for example, HARQ information (e.g., number of HARQs) for initiating user equipment 22, 23 from each of user equipment 21 to the multicast group, or originating user equipment 21 to each of the multicast group receiving user equipment 22 , 23 path loss information, and so on.
  • the initiating user equipment 21 needs to obtain channel status information for each of the receiving user equipments 22, 23 in the multicast group, and transmits the acquired channel status information to the base station 10.
  • the channel status information is path loss information
  • each receiving user equipment 22, 23 needs to separately feed its received power to the initiating user equipment 21, and the initiating user equipment 21 based on its own transmitting power and the received receiving user equipment.
  • the received power of 22, 23 calculates the path loss of the initiating user equipment 21 to each of the receiving user equipments 22, 23, and then transmits the path loss information to the base station 10.
  • the base station 10 configures the transmission power for the initiating user equipment 21 based on the determined predetermined transmission power and the received channel condition information of the user equipment 22, 23 from each of the initiating user equipment 21 to the multicast group.
  • interference may occur between the uplink transmission of the initiating user equipment 21 and the uplink transmission of the cellular user equipment 20, and therefore, in this case, the base station 10 is initiating the user.
  • the device 21 configures the transmission power, it is also necessary to consider initiating the uplink of the user equipment 21 to the neighboring cellular user equipment. Disturbing the situation. That is, the base station 10 simultaneously receives the channel status information of each of the initiating user equipment 21 to the multicast group, and the originating user equipment 21 for its neighboring cells based on the determined predetermined transmission power.
  • the uplink interference situation of the user equipment configures the transmission power for the initiating user equipment 21. If the uplink interference of the initiating user equipment 21 to its neighboring cellular user equipment is large, the transmission power of the initiating user equipment 21 needs to be correspondingly reduced.
  • the base station 10 notifies the originating user device 21 of the transmission power configured to initiate the user equipment 21.
  • the initiating user equipment 21 can perform D2D communication with the receiving user equipment 22, 23 in the multicast group based on the transmission power.
  • Scenario 2 Some user equipments in the multicast group are within the coverage of the cellular network, and another part of the user equipment is outside the coverage of the cellular network (as shown in Figure 2).
  • the user equipment within the coverage of the cellular network can act as a relay user equipment (Relay UE) to relay the network information.
  • the relay user equipment When performing cellular link communication, the relay user equipment is treated as a cellular user equipment; and when performing multicast communication, the relay user equipment is treated as a multicast originating user equipment.
  • the relay user equipment will perform multicast communication based on the indication of the base station, for example, when and where to relay network information. Feedback from user equipment outside the coverage of the cellular network in the multicast group can be treated as another multicast transmission.
  • the problem to be solved is that if two or more user equipments can be used as multicast originating user equipments at the same time, how to select one of the relay user equipments should be selected.
  • user equipments 21, 23, 24 and 25 constitute a multicast group based on D2D communication; in addition, user equipments 22, 24 and 25 also constitute a multicast group based on D2D communication.
  • the user equipment 21 is located within the coverage of the cellular network, and the user equipments 23, 24, and 25 are located outside the coverage of the cellular network; in the second multicast group, the user equipment 22 is located in the cellular network. Within the coverage, user devices 24 and 25 are located outside of the coverage of the cellular network.
  • the base station 10 selects one of the potential user equipments 21 and 22 as the relay user equipment.
  • Training signaling is separately sent for requesting information from the network.
  • the training sequence includes a synchronization sequence, an identity of the user equipment, and an information content portion.
  • Each user equipment located outside the coverage of the cellular network can send training signaling on a predetermined carrier. If the cellular uplink transmission uses the same carrier as the D2D uplink transmission, each user equipment can listen to the carrier for a period of time before sending the training signaling, thereby avoiding collision.
  • Each of the potential user equipments 21, 22 respectively detects the transmission of training signaling of the user equipment located outside the coverage of the cellular network. Specifically, each potential user equipment separately receives the training signaling and resolves the identity of the user equipment from the training signaling, and then determines the detectable based on the number of the identity identifiers of the different user equipments that are solved. The number of user devices that are outside the coverage of the cellular network.
  • each potential user equipment 21, 22 transmits its respective detected number of user equipments located outside the coverage of the cellular network to the base station 10.
  • the base station 10 selects one user equipment from the two potential user equipments 21 and 22 as the relay user equipment based on the number of user equipments detected by each of the potential user equipments 21 and 22 that are located outside the coverage of the cellular network. .
  • the base station 10 can select a potential user equipment capable of detecting a greater number of user equipments located outside the coverage of the cellular network as the relay user equipment.
  • each potential user equipment 21, 22 can also determine its path loss information to the user equipment outside the coverage of the cellular network in the multicast group, and send the determined path loss information to the base station 10.
  • the base station 10 detects the number of user equipments located outside the coverage of the cellular network and each of the received potential user equipments in the multicast group based on the received each potential user equipment 21, 22.
  • the path loss information of the user equipment outside the range is selected from the two potential user equipments 21 and 22 as the relay user equipment.
  • Scenario 3 All user equipments in a multicast group are not covered by the cellular network.
  • Figure 4 shows an example of a new frame structure.
  • the frame of the present invention is divided into two parts.
  • the first part of the frame is a synchronization sequence.
  • the synchronization sequence can be generated by a unique identity of the user equipment. Since the synchronization and multicast communication are limited only in the area of one cell, which is spread in a wave manner by multicast transmission, the uniqueness of the identity of the user equipment only needs to be limited to a limited number of user equipments.
  • the second part of the frame is the information that the user equipment wants to transmit. It can be new data transmitted for the first time, or ACK/NACK information about the last time it was received from other user equipment.
  • the information part ie, the second part of the frame
  • some special markings eg, user equipment detected during reception
  • the identity should be inserted into the ACK/NACK message.
  • the reference signal should also be inserted into the ACK/NACK information.
  • the problem of conflict avoidance needs to be considered.
  • the conflict between the transmissions of each node has been considered.
  • Some methods of carrier sensing have also been proposed for avoiding potential collisions. Since there is no need to look for dedicated reception for transmission for multicast communication, this means that no handshake process is required before the information is transmitted, so the manner of multicast communication can be designed in a simpler manner.
  • the multicast transmission method will be described below with reference to FIGS. 5 and 6.
  • step S501 the user equipment 30 listens to the carrier to determine whether the carrier is in an idle state.
  • the first threshold may be preset, and the user equipment 30 determines whether the idle state of the carrier exceeds the first threshold. If the first threshold is exceeded, the subsequent step S502 is performed, if the After a threshold, the carrier is re-started to listen.
  • step S502 the user equipment 30 transmits information in the frame structure shown in FIG. 4 within a fixed time window. What needs to be explained here is that in order to maintain equality, each user equipment can only The carrier is occupied in a fixed time window. If the information to be transmitted by the user equipment is greater than the read fixed time window, the read carrier needs to be re-listened again to seek a transmission opportunity.
  • step S503 after the fixed time window arrives, the user equipment 30 stops transmitting the information. While the user equipment 30 stops transmitting information, it can listen to the carrier to receive information from other user equipments 31 and 32 in the multicast group.
  • step S503 after the user equipment 30 stops transmitting information for a predetermined length of time, if it still has information to transmit (for example, the user equipment 30 did not transmit all the information in the fixed time window during the last transmission), then The above steps S501-503 are continued.
  • the second threshold value may be preset, and the user equipment 30 determines whether the length of time for stopping the transmission of the information reaches the second threshold value. If the second threshold value is reached, the above steps S501-503 are continued.

Landscapes

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

Abstract

La présente invention porte sur trois scènes d'application pour mettre en œuvre une communication en multidiffusion de type D2D (de dispositif à dispositif) dans un réseau cellulaire. Scène d'application 1 : tous les équipements d'utilisateur dans un groupe de multidiffusion sont sous la couverture du réseau cellulaire, et pour la scène d'application, il est proposé un procédé pour configurer la puissance d'émission de l'équipement d'utilisateur initiateur dans le groupe de multidiffusion. Scène d'application 2 : une partie des équipements d'utilisateur dans le groupe de multidiffusion est sous la couverture du réseau cellulaire, l'autre partie des équipements d'utilisateur est en dehors de la couverture du réseau cellulaire, et pour la scène d'application, il est proposé un procédé de sélection d'un dispositif d'utilisateur relais. Scène d'application 3 : tous les équipements d'utilisateur dans le groupe de multidiffusion sont en dehors de la couverture du réseau cellulaire, et pour la scène d'application, il est proposé un procédé de transmission en multidiffusion.
PCT/CN2013/081008 2013-08-07 2013-08-07 Procédé de mise en œuvre d'une communication en multidiffusion de type de dispositif à dispositif (d2d) dans un réseau cellulaire WO2015018010A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/CN2013/081008 WO2015018010A1 (fr) 2013-08-07 2013-08-07 Procédé de mise en œuvre d'une communication en multidiffusion de type de dispositif à dispositif (d2d) dans un réseau cellulaire
CN201380078311.3A CN105409296B (zh) 2013-08-07 2013-08-07 在蜂窝网络中实现基于设备到设备的组播通信的方法
TW103126907A TW201521494A (zh) 2013-08-07 2014-08-06 在蜂窩網路中實現基於設備到設備的組播通信的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/081008 WO2015018010A1 (fr) 2013-08-07 2013-08-07 Procédé de mise en œuvre d'une communication en multidiffusion de type de dispositif à dispositif (d2d) dans un réseau cellulaire

Publications (2)

Publication Number Publication Date
WO2015018010A1 true WO2015018010A1 (fr) 2015-02-12
WO2015018010A9 WO2015018010A9 (fr) 2015-04-02

Family

ID=52460514

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/081008 WO2015018010A1 (fr) 2013-08-07 2013-08-07 Procédé de mise en œuvre d'une communication en multidiffusion de type de dispositif à dispositif (d2d) dans un réseau cellulaire

Country Status (3)

Country Link
CN (1) CN105409296B (fr)
TW (1) TW201521494A (fr)
WO (1) WO2015018010A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111132312A (zh) * 2018-10-30 2020-05-08 大唐移动通信设备有限公司 一种资源分配方法和装置
CN111836333A (zh) * 2019-04-22 2020-10-27 华为技术有限公司 一种通信方法、通信装置及终端设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108419295B (zh) * 2017-02-10 2022-01-14 华为技术有限公司 一种终端与终端之间通信的方法、网络侧设备和终端

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102833691A (zh) * 2012-09-12 2012-12-19 北京理工大学 基于波束成形和喷泉码的d2d多媒体广播和组播方法
WO2012177002A2 (fr) * 2011-06-21 2012-12-27 엘지전자 주식회사 Procédé permettant d'établir une communication entre des dispositifs dans un système d'accès sans fil et dispositif pour ce procédé
CN103190196A (zh) * 2010-10-13 2013-07-03 诺基亚公司 通信模式的选择

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9198137B2 (en) * 2011-07-28 2015-11-24 Broadcom Corporation Network controlled filtering over wireless device communications
CN102625252B (zh) * 2012-03-16 2014-08-06 北京邮电大学 D2d多播通信系统中避免冲突的分时传输方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103190196A (zh) * 2010-10-13 2013-07-03 诺基亚公司 通信模式的选择
WO2012177002A2 (fr) * 2011-06-21 2012-12-27 엘지전자 주식회사 Procédé permettant d'établir une communication entre des dispositifs dans un système d'accès sans fil et dispositif pour ce procédé
CN102833691A (zh) * 2012-09-12 2012-12-19 北京理工大学 基于波束成形和喷泉码的d2d多媒体广播和组播方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111132312A (zh) * 2018-10-30 2020-05-08 大唐移动通信设备有限公司 一种资源分配方法和装置
CN111836333A (zh) * 2019-04-22 2020-10-27 华为技术有限公司 一种通信方法、通信装置及终端设备
CN111836333B (zh) * 2019-04-22 2022-07-19 华为技术有限公司 一种通信方法、通信装置及终端设备
US11974363B2 (en) 2019-04-22 2024-04-30 Huawei Technologies Co., Ltd. Communication method, communication apparatus, and terminal device

Also Published As

Publication number Publication date
CN105409296A (zh) 2016-03-16
WO2015018010A9 (fr) 2015-04-02
CN105409296B (zh) 2020-10-02
TW201521494A (zh) 2015-06-01

Similar Documents

Publication Publication Date Title
JP6312168B2 (ja) 複数のキャリアを支援する移動通信システムで信号送受信方法及び装置
US10070433B2 (en) Communications in an ad-hoc multicast network
RU2672623C2 (ru) Усовершенствованное распределение ресурсов для связи между устройствами (d2d)
EP3866508B1 (fr) Procédés de traitement de données de service de diffusion/multidiffusion
JP6522588B2 (ja) 公共安全アプリケーションのコンテキストにおけるデバイス間ｄ２ｄ通信のためのｌｔｅ ｍａｃサブヘッダ
KR101907051B1 (ko) D2d 통신 방법 및 장치
KR102141114B1 (ko) 단말 대 단말 통신에서 시간 동기화 방법 및 장치
KR102489759B1 (ko) 무선 통신 시스템에서 방송 자원 혼잡 제어 방법 및 장치
JP6482007B2 (ja) 通信デバイスおよび方法
JP6563420B2 (ja) ロングタームエボリューションデバイス間発見のためのリソース割振り制御
WO2016060175A1 (fr) Dispositif d'utilisateur, station de base et procédé de réception discontinue
WO2015043341A1 (fr) Procédé, dispositif et système de communication d2d
KR20110085441A (ko) 이동통신 시스템에서 단말기의 핸드오버를 지원하는 방법 및 장치
WO2013187643A1 (fr) Procédé pour exécuter une opération de radiomessagerie dans un système de communication sans fil prenant en charge une communication directe entre des terminaux, et terminal d2d pour la mise en œuvre de ce procédé
CN109565404A (zh) 用于交通工具到交通工具通信的自主资源选择
WO2014124610A1 (fr) Procédé et appareil de découverte de dispositif
WO2014135090A1 (fr) Procédé, système et dispositif de transmission de données
KR102333454B1 (ko) 통신 디바이스
CN109076056B (zh) 在终端设备和网络设备中使用的方法及相关联的设备
WO2015018010A1 (fr) Procédé de mise en œuvre d'une communication en multidiffusion de type de dispositif à dispositif (d2d) dans un réseau cellulaire
WO2015168908A1 (fr) Procédé, dispositif et système de planification de ressources
WO2015013870A1 (fr) Procédé de configuration de signalisation, procédé et appareil de découverte de dispositif à dispositif, et système de communication
TWI811630B (zh) 用於隨機存取之方法及裝置
WO2024060187A1 (fr) Procédé de communication en liaison latérale et dispositif terminal
RU2681368C1 (ru) Усовершенствованное распределение ресурсов для связи между устройствами (d2d)

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201380078311.3

Country of ref document: CN

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

Ref document number: 13891272

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13891272

Country of ref document: EP

Kind code of ref document: A1