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公开(公告)号：US12004242B2
公开(公告)日：2024-06-04
申请号：US17986387
申请日：2022-11-14
Applicant: FUJITSU LIMITED
Inventor： Yulong Shi , Meiyi Jia , Hua Zhou
Abstract: A system information indication method and apparatus and a communication system. In the embodiments of this disclosure, by indicating a correspondence between an area related ID or a system information related index and system information, and/or notifying information on a change of the area related ID or system information related index, a case may be avoided where a UE needs still to obtain system information from a network side when system information of a current cell is stored, thereby efficiently lowering power consumption of the UE in acquiring the system information.
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公开(公告)号：US11595100B2
公开(公告)日：2023-02-28
申请号：US16704470
申请日：2019-12-05
Applicant: FUJITSU LIMITED
Abstract: An apparatus and method for configuring a transmission resource of a beam failure recovery request, apparatus and method for responding a beam failure recovery request, and a communications system. The apparatus for configuring a transmission resource of a beam failure recovery request includes: a configuring unit configured to transmit configuration information to user equipment, the configuration information being used to configure a transmission resource of a beam failure recovery request related to coordination network equipment. The apparatus for responding a beam failure recovery request includes: a responding unit configured to transmit response information related to a beam failure recovery request of coordination network equipment to user equipment. A case where beam failure occurs in the coordination network equipment may be dealt with efficiently, and normal communications between the network equipment and the user equipment may be ensured.
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公开(公告)号：US11533763B2
公开(公告)日：2022-12-20
申请号：US16571856
申请日：2019-09-16
Applicant: FUJITSU LIMITED
Inventor： Yulong Shi , Meiyi Jia , Hua Zhou
Abstract: A system information indication method and apparatus and a communication system. In the embodiments of this disclosure, by indicating a correspondence between an area related ID or a system information related index and system information, and/or notifying information on a change of the area related ID or system information related index, a case may be avoided where a UE needs still to obtain system information from a network side when system information of a current cell is stored, thereby efficiently lowering power consumption of the UE in acquiring the system information.
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公开(公告)号：US11330532B2
公开(公告)日：2022-05-10
申请号：US16299705
申请日：2019-03-12
Applicant: FUJITSU LIMITED
Inventor： Lianhai Wu , Hua Zhou
Abstract: A power control method and apparatus and a communication system. The method includes: a terminal acquires transmission power assistant information when transmission of sidelink information is triggered; and the terminal determines transmission power of the sidelink information according to the transmission power assistant information. With the embodiments of this disclosure, by using a characteristic that an application stratum of the terminal is able to learn a distance between a receiver end and a transmitter end according to a positioning system and/or a map, information related on power setting is provided to an access stratum of the terminal, so as to instruct the terminal or an eNB to set appropriate transmission power.
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公开(公告)号：US11323157B2
公开(公告)日：2022-05-03
申请号：US15621649
申请日：2017-06-13
Applicant: FUJITSU LIMITED
Inventor： Yi Zhang , Hua Zhou , Hongchao Li
Abstract: A downlink channel estimation method and apparatus based on a sounding reference signal (SRS), and a communications system. The method includes: a base station receives a SRS sent by UE, the SRS being used for downlink channel estimation and supporting high-dimensional MU-MIMO; performing uplink channel estimation according to the SRS; and acquiring downlink channel information according to uplink channel information obtained in the uplink channel estimation. By means of embodiments of the present disclosure, downlink reference signal overheads and feedback overheads can be remarkably reduced, gain brought by large-scale antennas is obtained, and the system capacity can be further improved.
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Patent Agency Ranking
公开(公告)号：US11252629B2
公开(公告)日：2022-02-15
申请号：US16571862
申请日：2019-09-16
Applicant: FUJITSU LIMITED
Inventor： Meiyi Jia , Yulong Shi , Hua Zhou
Abstract: A method and apparatus for recovering network connection and a communication system. In a case where radio link failure occurs in a master base station and a signaling radio bearer of a secondary base station is still available, or a physical layer issue or random access issue occurs in a primary cell but a secondary cell is still available, by transmitting the information on the failure of the master base station and/or the primary cell or autonomously recovering the master base station and/or the primary cell by a UE, the cell or base station where the radio link failure occurs may be quickly changed, connection with the network side may be recovered, and data loss may be reduced.
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公开(公告)号：US10542455B2
公开(公告)日：2020-01-21
申请号：US16505083
申请日：2019-07-08
Applicant: FUJITSU LIMITED
Inventor： Yulong Shi , Pengyu Ji , Hua Zhou
Abstract: A data indication method includes: transmitting a buffer status report to a network side, the buffer status report containing at least one piece of buffer size information, the buffer size information indicating a buffer size to which a logical channel or a logical channel group corresponds; or transmitting a buffer status report of a variable length to a network side; wherein, the buffer status report of a variable length contains buffer size information on a logical channel group with a buffer size being greater than zero when the buffer status report is triggered or before logical channel data are multiplexed, or contains buffer size information on a logical channel group with a buffer size being greater than zero before logical channel data are multiplexed and being equal to zero after the logical channel data are multiplexed.
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公开(公告)号：US10271330B2
公开(公告)日：2019-04-23
申请号：US16017509
申请日：2018-06-25
Applicant: FUJITSU LIMITED
Inventor： Lianhai Wu , Haibo Xu , Hua Zhou
Abstract: Embodiments of this disclosure provide an information transmission method and apparatus and a system. The method is applicable to a terminal, the terminal being configured with a first type of resource pool for transmitting first type of information and a second type of resource pool for transmitting second type of information; wherein, the method includes: when the terminal is triggered to transmit information, it selects resources for transmitting the information from the configured first type of resource pool or second type of resource pool according to an attribute of the information; and transmits the information by using the selected resources. With the embodiments of this disclosure, it may be ensured that the terminal will not miss detecting a type of information due to a semi-duplexing problem, such as detecting resources for transmitting emergency information, thereby increasing utilization of resources, and improving reliability of V2V communications.
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9.发明申请公开(公告)号：US20180167184A1
公开(公告)日：2018-06-14
申请号：US15889762
申请日：2018-02-06
Applicant: FUJITSU LIMITED
CPC classification number: H04L5/0048 , H04L5/0085 , H04L27/2605 , H04L27/2613 , H04W4/46 , H04W56/001 , H04W72/0446
Abstract: A transmission method and apparatus for a demodulation reference signal and a communications system. The transmission method includes: transmitting a DMRS by a transmitting device to a receiving device; the number of symbols in each subframe for transmitting the DMRS is configured as 1 or more than 2. Hence, more than 2 symbols for transmitting the DMRS are configured in each subframe, which may increase a transmission density of DMRS, and satisfy a demand of a new traffic, such as V2X, for a moving speed; or a single symbol for transmitting the DMRS is configured in each subframe, which may satisfy a demand of a low-speed mobile traffic, such as the cellular IOT, and lower overhead.
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10.发明申请公开(公告)号：US20180076940A1
公开(公告)日：2018-03-15
申请号：US15818125
申请日：2017-11-20
Applicant: FUJITSU LIMITED
IPC: H04L5/00 , H04B7/0413
Abstract: A resource configuration method and apparatus of reference signal and a communications system. The resource configuration method includes: configuring one or more resources by a base station for a first reference signal which is precoded with one or more beam weighting coefficients, and configuring one or more resources for a second reference signal which is not precoded with one or more beam weighting coefficients or precoding of which is unknown to a UE; and transmitting one or more resource configurations of the first reference signal and one or more resource configurations of the second reference signal to the UE. Hence, a 3D MIMO system may flexibly support reference signals of multiple types.
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