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公开(公告)号：EP3923635A1
公开(公告)日：2021-12-15
申请号：EP19915255.4
申请日：2019-02-15
发明人： MI, Xiang , LUO, Zhihu , TIE, Xiaolei , LI, Jun , JIN, Zhe
摘要： An information sending method and an apparatus are provided, to resolve a problem that monitoring a PDCCH search space takes a relatively long time and has a relatively large power consumption loss after an existing terminal device sends uplink data. In embodiments of this application, after sending a first message including uplink data to a network device, a terminal device receives first DCI from the network device, where the first DCI may include first indication information, and the first indication information is used to indicate that the network device has successfully demodulated the first message or used to indicate the terminal device to flush a HARQ buffer corresponding to the first message; and the terminal device may obtain the first indication information from the first DCI, and after obtaining the first indication information, the terminal device determines not to monitor a PDCCH search space within first duration after the first DCI. After sending the uplink data and receiving the first indication information from the network device, the terminal device may not monitor the PDCCH search space within specific duration, so that duration for monitoring the PDCCH search space can be effectively reduced, and power consumption of the terminal device can also be better reduced.
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公开(公告)号：EP3826414A1
公开(公告)日：2021-05-26
申请号：EP18929618.9
申请日：2018-08-10
发明人： LUO, Zhihu , LI, Jun , TIE, Xiaolei , JIN, Zhe
IPC分类号： H04W74/00
摘要： This application discloses a data transmission method and a communications apparatus, to reduce system overheads and improve retransmission efficiency. The method includes: receiving downlink control information DCI from a network device, where the DCI includes a first bit and a second bit, and the first bit and the second bit are respectively used to indicate two new data indicators NDIs associated with two transport blocks TBs scheduled in the DCI; and performing, based on the first bit and the second bit in the DCI, uplink data transmission or downlink data transmission in HARQ processes corresponding to the two TBs. The two NDIs associated with the two TBs scheduled in one piece of DCI are carried in the DCI, so that DCI overheads are not increased as much as possible. In addition, the first bit and the second bit in the DCI are respectively used to indicate the NDIs associated with the two TBs. In other words, different NDIs are independently indicated by using different bit indication bits. Therefore, a TB that needs to be retransmitted can be accurately distinguished, thereby improving retransmission efficiency. The method and device provided in the embodiments of this application improve network coverage capacity, and may be applied to an internet of things such as an MTC, an IoT, an LTE-M, or an M2M.
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公开(公告)号：EP3793267A1
公开(公告)日：2021-03-17
申请号：EP18917823.9
申请日：2018-05-11
发明人： MI, Xiang , TIE, Xiaolei , JIN, Zhe
摘要： A signal sending method, a signal receiving method, and an apparatus are provided. The method includes: A network device generates a first sequence, where the first sequence is a wake-up signal WUS sequence in an in-band deployment mode; the network device maps the first sequence to the last 11 orthogonal frequency division multiplexing OFDM symbols in a first subframe, and maps, to the first M OFDM symbols in the first subframe sequentially, a sequence that belongs to the first sequence and that is to be mapped to a first OFDM symbol to an M th OFDM symbol, where the first OFDM symbol to the M th OFDM symbol are M OFDM symbols of the last N OFDM symbols in the first subframe, N is greater than or equal to M, N is an integer greater than 0 and less than 12, and M is an integer greater than 0 and less than 4; and the network device sends the first subframe.
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公开(公告)号：EP3768004A1
公开(公告)日：2021-01-20
申请号：EP18913862.1
申请日：2018-04-04
发明人： TIE, Xiaolei , LUO, Zhihu , LI, Qiming , JIN, Zhe
IPC分类号： H04W56/00
摘要： An information sending method, an information receiving method, and an apparatus are provided, to improve scheduling accuracy for a terminal device. The information sending method includes: generating a downlink channel quality report volume, where the downlink channel quality report volume is used to indicate a relative relationship between a first number of repetitions and a second number of repetitions, the first number of repetitions is a quantity of retransmissions that need to be performed in a preset downlink control channel format to achieve a preset block error rate, and the second number of repetitions is a number of repetitions corresponding to common search space of a downlink control channel carried on a downlink carrier; and sending an MSG3 to a network device in a random access procedure, where the MSG3 is used to indicate the downlink channel quality report volume.
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公开(公告)号：EP3697139A1
公开(公告)日：2020-08-19
申请号：EP17932047.8
申请日：2017-11-17
发明人： SU, Yuwan , JI, Tong , JIN, Zhe , ZHANG, Weiliang
IPC分类号： H04W52/14
摘要： A message transmission method and a device are used to accelerate a random access procedure. The method includes: making, by a terminal device, a first random access attempt at a coverage enhancement level 0, where the first random access attempt includes determining first transmit power based on a first power control parameter and/or transmit power of a first random access preamble message; sending, by the terminal device, a first transmission message and/or a first uplink control message to a network device by using the first transmit power; making, by the terminal device, a second random access attempt at the coverage enhancement level 0, where the second random access attempt includes determining second transmit power based on a second power control parameter and/or transmit power of a second random access preamble message, and the determining second transmit power includes determining that the second transmit power is greater than or equal to the first transmit power; and sending, by the terminal device, a second transmission message and/or a second uplink control message to the network device by using the second transmit power.
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公开(公告)号：EP3651514A1
公开(公告)日：2020-05-13
申请号：EP17918870.1
申请日：2017-07-27
发明人： LUO, Zhihu , TIE, Xiaolei , JIN, Zhe
IPC分类号： H04W72/04
摘要： This application provides an information transmission method and a device. The method includes: obtaining, by a terminal device, resource configuration information, where the resource configuration information is used to indicate a resource used by the terminal device to send a scheduling request; sending, by the terminal device, the scheduling request to a network device on the resource indicated by the resource configuration information, where a preset correspondence exists between a sequence carried in the scheduling request and an amount of uplink data that is requested to be sent by the terminal device to the network device. An implementation process is simple, and a delay and power consumption are greatly reduced.
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公开(公告)号：EP3267706A1
公开(公告)日：2018-01-10
申请号：EP15888785.1
申请日：2015-04-15
发明人： JIN, Zhe , CHEN, Zhe , ZHANG, Weiliang
IPC分类号： H04W4/20
摘要： Embodiments of the present invention provide a reference signal sending method, a reference signal receiving method, and an apparatus. A reference signal sending method includes: obtaining a reference signal sequence, where the reference signal sequence includes multiple bits and exclusive OR of every two bits separated by one bit in the multiple bits is 1; performing Gaussian Minimum Shift Keying GMSK modulation on the reference signal sequence; and sending a modulated reference signal sequence. In the embodiments of the present invention, a reference signal sequence is designed as a sequence in which exclusive OR of every two bits separated by one bit is 1, GMSK modulation is performed on the reference signal sequence, and the same reference signal sequence is used to perform channel estimation during GMSK demodulation. Compared with a case in which a pseudo random sequence is used as a pilot symbol, channel estimation accuracy is improved, and channel estimation performance is further improved.
摘要翻译： 本发明实施例提供了一种参考信号发送方法，参考信号接收方法及装置。 一种参考信号发送方法，包括：获取参考信号序列，所述参考信号序列包括多个比特，所述多个比特中的一个比特分隔的每两个比特的异或值为1; 在参考信号序列上执行高斯最小频移键控GMSK调制; 并发送调制参考信号序列。 在本发明的实施例中，参考信号序列被设计为其中由一个比特分隔的每两个比特的异或为1的序列，对参考信号序列执行GMSK调制，并且使用相同的参考信号序列 在GMSK解调期间执行信道估计。 与使用伪随机序列作为导频符号的情况相比，信道估计精度提高，信道估计性能进一步提高。
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公开(公告)号：EP4418588A1
公开(公告)日：2024-08-21
申请号：EP22889379.8
申请日：2022-11-03
发明人： QU, Weilin , WU, Yiling , JIN, Zhe , CHEN, Jun , LUO, Zhihu
摘要： This application provides a communication method and apparatus. The communication method includes: A transmitting end device generates an orthogonal frequency division multiplexing OFDM time domain signal, where the OFDM time domain signal includes a plurality of amplitude shift keying modulation symbols arranged in time domain; and the transmitting end device sends the OFDM time domain signal to a receiving end device. According to the communication method provided in this application, an OFDM time domain signal generated by a transmitting end includes a plurality of amplitude shift keying modulation symbols, so that a data transmission rate can be improved.
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公开(公告)号：EP4376331A3
公开(公告)日：2024-08-07
申请号：EP24169868.7
申请日：2017-04-01
发明人： JI, Tong , JIN, Zhe , LUO, Zhihu , ZHANG, Weiliang
IPC分类号： H04W72/044 , H04J13/10
CPC分类号： H04W72/0466 , H04J13/10
摘要： A message transmission method and device relating to the field of communications technologies is disclosed, so as to improve an anti-interference capability in message transmission. The method includes: generating, by a base station, a scrambling code according to a first time parameter; then scrambling a system message according to the scrambling code; and finally sending the scrambled system message to a terminal on a physical broadcast channel. In this technical solution, because the first time parameter has different values at at least two different moments, scrambling codes determined at the at least two corresponding different moments are different. Therefore, a possibility at which the base station uses a same scrambling code to scramble a same system message repeatedly in a time period is reduced, so that an anti-interference capability in system message transmission is improved.
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公开(公告)号：EP4362559A1
公开(公告)日：2024-05-01
申请号：EP22836664.7
申请日：2022-06-08
发明人： HOU, Hailong , JIN, Zhe , LUO, Zhihu , QU, Weilin
摘要： This application provides a communication method and a communication apparatus. The method includes: sending first configuration information to a plurality of terminal devices, where the first configuration information is used to configure the plurality of terminal devices to detect paging early indication information on a first bandwidth unit, and the paging early indication information indicates to detect or not to detect paging indication information; and sending a reference signal on the first bandwidth unit, where the reference signal is used by the plurality of terminal devices to perform time synchronization and/or frequency synchronization with a network device, to reduce power consumption of a terminal device.
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