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公开(公告)号：EP4415455A1
公开(公告)日：2024-08-14
申请号：EP22885976.5
申请日：2022-10-25
发明人： FAN, Bo , ZHANG, Xi , YUAN, Shitong
摘要： A beam indication method and an apparatus are provided. The method includes: A terminal device receives first configuration information from a network device, to configure M common beams of a same type, where M is an integer greater than 1. The terminal device receives first MAC-CE information from the network device, to activate N common beams, and indicate that the N common beams are grouped into a first common beam group and a second common beam group, where N is an integer greater than 1 and less than or equal to M. Further, the terminal device receives one or more pieces of first downlink control information from the network device, to indicate two common beams of a same type. The terminal device communicates with the network device by using at least one of the two common beams of the same type based on a common beam group to which the two common beams of the same type belong. In the method, the terminal device can accurately distinguish between common beam groups to which a plurality of common beams of a same type belong, to communicate with the network device by using one or more common beams of the same type.
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公开(公告)号：EP4354934A1
公开(公告)日：2024-04-17
申请号：EP22851909.6
申请日：2022-07-21
发明人： YUAN, Shitong , ZHANG, Xi
IPC分类号： H04W16/28
CPC分类号： H04W16/28
摘要： This application provides a communication method and a communication apparatus. In comparison with an implementation in which there is a high communication delay in a conventional beam management process, after a network device indicates in advance that a first beam is for beam switching, and a terminal device reports a first measurement report corresponding to the first beam, the terminal device can determine, without waiting for a beam management instruction delivered by the network device, that the first beam can be for beam switching, so that a delay in a beam management process can be reduced, thereby improving communication quality. In this method, a terminal device receives first indication information from a network device, where the first indication information indicates that a first beam associated with at least one reference signal (reference signal, RS) corresponding to a first reporting configuration is for beam switching. The terminal device performs measurement based on the first reporting configuration, to obtain a first measurement report. The terminal device sends the first measurement report to the network device.
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公开(公告)号：EP4346261A1
公开(公告)日：2024-04-03
申请号：EP22841264.9
申请日：2022-07-07
发明人： YUAN, Shitong , FAN, Bo , ZHANG, Xi
IPC分类号： H04W16/28
摘要： This application relates to a beam configuration method, an apparatus, and a communication system. The method includes: A terminal device receives a beam configuration message, where the beam configuration message indicates a new beam. The terminal device may determine, at a time at which first duration starting from a first moment is reached, to use the new beam for communication. The first moment is a moment at which the terminal device switches to the new beam, or a moment at which the terminal device is handed over to a network node on which the new beam is located, or a moment at which the terminal device sends, after switching to the new beam, a first acknowledgement message to the network node on which the new beam is located, or a moment at which the terminal device sends a second acknowledgement message for the beam configuration message to a network node on which an old beam is located, or a moment at which the terminal device receives the beam configuration message. In this case, the terminal device and the network node on which the old beam is located, and/or the terminal device and the network node on which the new beam is located can have consistent understandings on an effective time of the new beam, to achieve accurate communication.
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公开(公告)号：EP4266787A1
公开(公告)日：2023-10-25
申请号：EP21918608.7
申请日：2021-01-15
发明人： YUAN, Shitong , LIU, Fengwei
IPC分类号： H04W72/04
摘要： This application discloses a communication method and apparatus based on integrated access and backhaul. The method includes: An IAB node reports first information to a donor node of the IAB node, where the first information indicates a first condition, and the first condition is a condition under which an MT of the IAB node and a DU of the IAB node work synchronously; and under the first condition, the DU of the IAB node communicates with a lower-level node of the IAB node or a terminal device, and synchronously, the MT of the IAB node communicates with an upper-level node of the IAB node. The technical solutions provided in this application can effectively ensure that the MT of the IAB node and the DU of the IAB node work synchronously.
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公开(公告)号：EP4106403A1
公开(公告)日：2022-12-21
申请号：EP20918995.0
申请日：2020-02-12
发明人： YUAN, Shitong , LIU, Fengwei , QIU, Jing
IPC分类号： H04W36/08
摘要： This application discloses a communication method and a communication apparatus. The communication method includes: An IAB node receives first configuration information from a source donor base station, where the first configuration information includes N pieces of configuration information of an MT and N pieces of configuration information of a DU that are configured by N target donor base stations for the IAB node; and the DU of the IAB node uses one piece of configuration information in the N pieces of configuration information of the DU when the MT of the IAB node satisfies a specific condition, where N is greater than or equal to 1, the MT is configured to communicate with a parent node of the IAB node, the source donor base station, or the target donor base station, and the DU is configured to communicate with a child node of the IAB node or a terminal. According to the method, in a process of implementing cross-donor base station handover of the IAB node, a conflict between a resource for the DU of the IAB node to send an SSB and a resource for the MT of the IAB node to send an SSB can be avoided, thereby avoiding a communication exception of a terminal as much as possible.
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公开(公告)号：EP4017162A1
公开(公告)日：2022-06-22
申请号：EP19941216.4
申请日：2019-08-30
发明人： LIU, Fengwei , YUAN, Shitong , QIU, Jing
摘要： A resource indication method and apparatus are provided, to implement resource indication in a case in which a DU has a plurality of cells. The method includes: A first node receives indication information sent by a second node, where the indication information is used to indicate availability of a dynamic resource in first resources corresponding to P cells, the first resource is a transmission resource used by the first node to communicate with a third node, the second node is an upper-level node of the first node, and the third node is a lower-level node of the first node. The first node determines, in N included cells, the P cells indicated by the indication information, and determines the availability of the dynamic resource in the first resources of the P cells based on the indication information, where 1≤P≤N.
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公开(公告)号：EP3820189A1
公开(公告)日：2021-05-12
申请号：EP19850138.9
申请日：2019-08-09
发明人： LI, You , ZHU, Yuanping , YUAN, Shitong , LIU, Jing , DAI, Mingzeng
摘要： This application provides a communication method and a communications apparatus. A first entity buffers data, so that a packet loss caused by backhaul link switching or a radio link failure can be avoided as much as possible. The communication method is applied to a relay system. The relay system includes a first node, a source node, and a target node, and the source node provides a service for the first node. The method includes: determining, by the first node, to be handed over from the source node to the target node; and storing, by the first node, data buffered in at least one first entity, where the first entity is a radio link control RLC entity or an adaptation layer entity.
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公开(公告)号：EP3796729A1
公开(公告)日：2021-03-24
申请号：EP19825545.7
申请日：2019-06-28
发明人： YUAN, Shitong , DAI, Mingzeng , LIU, Yalin , LI, You , ZHU, Yuanping
摘要： This application provides an IAB node switching method, an IAB node, and a donor base station. The switching method is applied to a relay system, the relay system includes at least a donor base station and a first IAB node, and the donor base station provides a gateway function for the first IAB node. The method includes: The first IAB node receives a first BWP configuration from the donor base station, where the first BWP configuration includes a BWP configuration of a second IAB node, and the second IAB node is a candidate upper-level node of the first IAB node. The first IAB node switches to the second IAB node. According to the IAB node switching method, the IAB node, and the donor base station that are provided in this application, service availability of an IAB node is ensured when the IAB node has a plurality of upper-level nodes.
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公开(公告)号：EP3768019A1
公开(公告)日：2021-01-20
申请号：EP19800810.4
申请日：2019-04-08
发明人： GUAN, Peng , CHEN, Lei , YUAN, Shitong , ZHANG, Xi , ZHANG, Di
IPC分类号： H04W72/04
摘要： This application provides a communication method and a communications apparatus. The method includes: in a process in which a terminal device performs beam failure recovery in a first bandwidth, determining, by the terminal device, that an operating bandwidth needs to be switched from the first bandwidth to a second bandwidth; and switching, by the terminal device, from the first bandwidth to the second bandwidth according to a preset policy. According to embodiments of this application, the operating bandwidth can be switched in the beam failure recovery process.
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公开(公告)号：EP4415410A1
公开(公告)日：2024-08-14
申请号：EP22885993.0
申请日：2022-10-26
发明人： FAN, Bo , ZHANG, Xi , YUAN, Shitong
IPC分类号： H04W16/28
CPC分类号： H04W16/28
摘要： Embodiments of this application disclose a beam usage method, including: A first communication device determines a first beam and a second beam, where the first beam and the second beam are beams of a same type. The first communication device determines, according to a first rule, a beam used for a first control resource set, where the beam used for the first control resource set is the first beam and/or the second beam. In this way, the first communication device correctly applies a beam, that is indicated by a network device, to a channel corresponding to a control resource set, so that the channel corresponding to the control resource set is transmitted through the correct beam, to improve communication transmission performance. For example, in a multi-site transmission scenario, the first communication device determines, according to the technical solutions of this application, to correctly apply the first beam and the second beam to a corresponding physical downlink control channel, to implement multi-site transmission.
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