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公开(公告)号：EP4336888A1
公开(公告)日：2024-03-13
申请号：EP22824034.7
申请日：2022-05-27
发明人： FAN, Bo , ZHOU, Hongrui , ZHANG, Xi , CHEN, Lei , LIU, Fengwei , YUAN, Shitong
IPC分类号： H04W24/08
摘要： This application provides a communication method and apparatus. The information transmission method includes: receiving measurement configuration information from a network device, where the measurement configuration information is used to configure a channel measurement resource and M interference measurement resources, and M is a positive integer greater than or equal to 1; and sending a bitmap to the network device, where the bitmap includes one or more bits, each of the one or more bits corresponds to one or more interference measurement resources, a value of each of the one or more bits indicates interference of the one or more interference measurement resources corresponding to each bit to the channel measurement resource, and the M interference measurement resources include the one or more interference measurement resources. According to the communication method provided in embodiments of this application, a terminal device can report, by reporting the bitmap, impact of the interference measurement resources on the channel measurement resource in one time of measurement. This saves transmission resources and improves transmission efficiency.
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公开(公告)号：EP4311131A1
公开(公告)日：2024-01-24
申请号：EP22778964.1
申请日：2022-03-29
发明人： FAN, Bo , ZHANG, Xi , CHEN, Lei , YUAN, Shitong , LIU, Fengwei , ZHANG, Yongping
IPC分类号： H04B17/309 , H04W72/04
摘要： Embodiments of the present invention disclose a communication method and apparatus. The method includes: receiving first configuration information from a radio access network device (401), where the first configuration information includes a plurality of channel measurement resources, and the plurality of channel measurement resources correspond to two groups of channel measurement resources; performing channel measurement based on the plurality of channel measurement resources to obtain a first measurement result (402); and sending the first measurement result to the radio access network device (403), where the first measurement result includes a joint channel measurement result, the joint channel measurement result is a channel measurement result of a first resource pair, the first resource pair includes one or more resource pairs including two channel measurement resources, the two channel measurement resources respectively belong to the two groups of channel measurement resources, and the joint channel measurement result includes information about the first resource pair. In embodiments of the present invention, a case in which the plurality of channel measurement resources simultaneously use different channels is considered in a channel measurement process, so that accuracy of channel measurement can be improved.
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公开(公告)号：EP4307805A1
公开(公告)日：2024-01-17
申请号：EP22779182.9
申请日：2022-04-02
发明人： YUAN, Shitong , LIU, Fengwei , SONG, Xinghua
IPC分类号： H04W72/04
摘要： This application provides a wireless communication method and apparatus. The wireless communication method includes: receiving indication information of a first pattern, where the first pattern is one of a plurality of patterns, each of the plurality of patterns indicates distribution of at least one resource in frequency domain, and the at least one resource includes at least one of a first resource, a second resource, and a third resource, where the first resource is a definitely available resource, the second resource is an unavailable resource, and availability of the third resource depends on a further indication of an upper-level node; and communicating with a second network device and/or a terminal device based on the first pattern. According to the wireless communication method and apparatus in embodiments of this application, a frequency domain resource pattern is configured in a slot that requires frequency division, and availability of some resources or all resources in each frequency division slot is indicated based on dynamic signaling. Therefore, a frequency division configuration is not excessively flexible, signaling overheads are further reduced, and system performance is improved.
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公开(公告)号：EP4304102A1
公开(公告)日：2024-01-10
申请号：EP22778703.3
申请日：2022-03-23
发明人： LIU, Fengwei , MA, Chuanhui
摘要： Embodiments of this application provide a signal forwarding method and apparatus, and relate to the field of wireless communication technologies, to improve a coverage gain and reduce a forwarding delay. In this method, a relay node may combine N signals into one signal. Each signal may be a signal obtained by performing frequency shift on a signal received by a receive channel corresponding to each signal, or each signal may be a signal obtained without performing frequency shift on a signal received by a receive channel corresponding to each signal. At least one signal included in the N signals is a signal obtained by performing frequency shift on a signal received by a receive channel corresponding to the at least one signal. The relay node may send the combined one signal. In the foregoing solution, the relay node may receive a plurality of signals, combine the plurality of signals, and then send a combined signal, to implement parallel receiving of a plurality of beams, so that the beams have larger angle coverage at one moment, and a beam gain can be obtained. Therefore, an uplink forwarding gain of the relay node can be significantly improved.
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公开(公告)号：EP4300903A1
公开(公告)日：2024-01-03
申请号：EP21933657.5
申请日：2021-03-30
发明人： LIU, Fengwei , XU, Minghui
IPC分类号： H04L27/26 , H04B7/0456
摘要： This application discloses a signal transmission method and apparatus, to implement signal transmission by using a multi-stream DFT-s-OFDM waveform. The method includes: precoding N streams of signals based on a first codebook before sending, to obtain N1 precoded signals, where a quantity of non-zero elements in each row of the first codebook is 1, the first codebook causes a phase difference between two of the N streams of signals, and N and N1 are integers greater than 1; and sending the N1 precoded signals. A transmitting end introduces a phase offset between two transmit antenna ports in a precoding process, so that equivalent inter-stream interference is optimal after channel equalization is performed at a receiving end, to improve demodulation performance of the receiving end.
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公开(公告)号：EP4287691A1
公开(公告)日：2023-12-06
申请号：EP22778760.3
申请日：2022-03-25
发明人： FAN, Bo , CHEN, Lei , ZHANG, Xi , YUAN, Shitong , LIU, Fengwei
IPC分类号： H04W24/08
摘要： This application discloses a channel measurement method and apparatus. A network device sends downlink signaling, to indicate or activate a beam. A terminal device determines the beam indicated or activated by using the downlink signaling, determines, based on an association relationship between a beam and a channel measurement configuration, a channel measurement configuration associated with the beam, performs channel measurement based on the channel measurement configuration, to obtain a channel measurement result, and reports the channel measurement result to the network device. According to the channel measurement solution in this application, when channel quality of a new beam needs to be measured, the network device does not need dedicated signaling to indicate a channel measurement configuration associated with the new beam. When the beam is indicated or activated, the terminal device is triggered to perform channel measurement, to implement low-latency and low-overhead channel measurement.
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公开(公告)号：EP4255049A1
公开(公告)日：2023-10-04
申请号：EP20967246.8
申请日：2020-12-28
发明人： LIU, Fengwei
摘要： This application discloses a relay communication method and apparatus, to resolve a problem of low accuracy of determining an uplink-downlink configuration through envelope detection in a conventional technology. The method includes: A relay device receives first information sent by a host device, and performs relay forwarding based on the first information. The first information is used to determine whether the relay device turns on an amplify-and-forward function on a first time domain resource unit in a first time domain resource set, the first time domain resource set includes one or more time domain resource units, and the first time domain resource unit is any time domain resource unit in the first time domain resource set. The host device indicates, by using the first information, a time domain resource unit on which the relay device turns on/turns off the amplify-and-forward function, so that the relay device can accurately determine an uplink-downlink transmission boundary, to reduce impact of interference noise, and further improve communication quality.
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公开(公告)号：EP4213559A1
公开(公告)日：2023-07-19
申请号：EP20958377.2
申请日：2020-10-23
发明人： LIU, Fengwei , YUAN, Shitong
IPC分类号： H04W72/04
摘要： This application provides a communication method and apparatus, to expect to better implement spatial multiplexing of an access link and a backhaul link of an IAB node. The method is applied to an MT of the IAB node. The method includes: obtaining transmission resource configurations, where the transmission resource configurations include a first configuration and a second configuration, the first configuration indicates that a start time domain resource is a downlink time domain resource and/or an end time domain resource is an uplink time domain resource in one configuration period, and the second configuration indicates that a start time domain resource is an uplink time domain resource and/or an end time domain resource is a downlink time domain resource in one configuration period; and determining, according to a specified rule, one or more of the following: whether to perform uplink sending on an uplink time domain resource in the transmission resource configurations, whether to perform downlink receiving on a downlink time domain resource in the transmission resource configurations, whether to send an uplink signal on a time domain resource in a reference configuration, or whether to receive a downlink signal on a time domain resource in the reference configuration, where the reference configuration is at least one of the first configuration and the second configuration.
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公开(公告)号：EP4210237A1
公开(公告)日：2023-07-12
申请号：EP20955772.7
申请日：2020-09-30
发明人： LIU, Fengwei , XU, Minghui
IPC分类号： H04B7/0456 , H04L27/26
摘要： This application provides a diversity communication method and apparatus, to provide a diversity transmission solution. A first device maps a plurality of modulation symbols corresponding to one transport block to a plurality of antenna ports, where a plurality of consecutive modulation symbols are mapped to one antenna port in each mapping. Then, the first device maps the modulation symbols on each antenna port to a frequency domain resource corresponding to the antenna port, and frequency domain resources corresponding to different antenna ports do not overlap. The frequency domain resources corresponding to the different antenna ports do not overlap. In other words, the transport block is transmitted on different channels, and therefore diversity transmission of the transport block is implemented. In addition, when the modulation symbols are mapped to the antenna ports, the plurality of consecutive modulation symbols are mapped each time. In this mapping manner, a phase difference between the plurality of consecutive modulation symbols may be kept undamaged, so that a communication system is enabled to maintain a low peak to average power ratio PAPR.
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公开(公告)号：EP4138490A1
公开(公告)日：2023-02-22
申请号：EP21804991.4
申请日：2021-05-10
发明人： LIU, Fengwei , YUAN, Shitong
IPC分类号： H04W72/04
摘要： This application discloses a resource multiplexing method and apparatus. In this application, a first node receives first configuration information sent by a second node, where the first configuration information includes first guard interval information associated with a first timing mode of an MT. The first node receives second configuration information sent by the second node, where the second configuration information includes second guard interval information associated with a second timing mode of the MT. Guard interval information configured by the second node is associated with different timing modes, so that the first node can obtain the guard interval information corresponding to the different timing modes, to improve flexibility of resource multiplexing performed on an access link and a backhaul link.
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