Huawei Technologies Co., Limited

Future Wei Technologies, Inc.

Wangsu Science & Technology Co., Ltd.

Zongjie Wang

Xueli Ma

Jing Li

Shuju Fan

Peng Zhang

Chuanfeng He

Yuanzhou Hu

Carmela Cozzo

Bingzhao Li

Jie Ma

Xiaolei Tie

Jinlin Peng

Yanyan Chen

Bo Yang

Hossein Bagheri

Zheng Liu

Pengpeng Dong

Mengying Ding

Xiaoxiao Zheng

Lei Li

Meng Hua

Jun Chen

Jing Tian Li

Guohua Zhou

Yongqiang Gao

Xin Zeng

Shurong Jiao

Doron Ezri

Gengshi Wu

Yueying Zhao

Weixin Wang

Kun Yan

Chongyang Han

Qi Liu

Wenwen Huang

Wenquan Hu

Xiaofei Ma

Zheng Shang

Ezer Melzer

Tingwei Xu

Jiyu Ye

Weiming Duan

Yoav Levinbook

Zhen Zhou

Jianfa Shen

Rongli Niu

Chongfa Wang

Ling Qiu

Xiaoxiao Zhneg

Yuanyu Zhang

In a data transmission method, a terminal device receives control information, and receives data of a transport block (TB) on a first time-frequency resource; and the terminal devices obtains m code block (CB) groups in the TB, where m is a positive integer, m=min(N,N), Nis a quantity of CBs in the TB, Nis a maximum value of a quantity of CB groups, each of the m CB groups includes at least one CB, Nis determined based on a TB size TBS and a maximum value of a data size of a CB, and the TBS is determined based on the control information.

Data transmission method and apparatus

The present disclosure is related to the content delivery technology and discloses a method and system for scheduling an edge CDN node. The method is applicable to a CDN scheduling center under a 5G network architecture and includes: receiving a terminal request for a target domain name sent by a central layer UPF network element; assigning a target edge CDN node to a terminal according to location information of the terminal carried in the terminal request if the terminal request is an HTTPDNS request; and assigning the target edge CDN node to the terminal according to a source IP address of the terminal request if the terminal request is a conventional DNS request. By adopting the present disclosure, the CDN scheduling center may determine the location information of the terminal under the 5G network architecture, thereby accurately assigning the edge CDN node to the terminal.

Method and system for scheduling edge CDN node

This application relates to the field of wireless communications technologies, and in particular, to a data processing method, apparatus, and system. This application provides a data processing method. A data sending device modulates a to-be-transmitted bit sequence, splits a real part and an imaginary part of a complex-valued symbol that is obtained through the modulation into two symbols to form a symbol sequence, performs phase rotation of symbols in the symbol sequence, and performs sending by using a single carrier frequency division multiple access (SC-FDMA) symbol. This application is intended to reduce a peak-to-average power ratio (PAPR) of a transmit signal of an orthogonal frequency division multiplexing (OFDM) system by splitting a real part and an imaginary part of a to-be-transmitted signal, and improve link quality of an entire transmission system.

Data processing method, apparatus, and system

The present disclosure relates to sending methods and apparatus. One example method includes receiving first indication information for uplink data transmission, where the first indication information indicates a frequency resource for the uplink data transmission, and the frequency resource includes N subcarriers, and sending an uplink reference signal associated with the uplink data transmission, where a length of a sequence of the uplink reference signal is M, a roll-off factor of a filter for the uplink data transmission is not greater than and N/2&#x2264;M&#x3c;N.

Method and apparatus for transmitting reference signal

Disclosed is a reference signal transmission method and a device. The method includes converting, by a sending device, a frequency domain reference signal from frequency domain to time domain, to generate a time domain reference signal. The frequency domain reference signal includes a reference signal sequence mapped to a frequency domain resource. The reference signal sequence is determined based on a Zadoff-Chu (ZC) sequence, and a length value of the ZC sequence is selected from at least two length values. The method includes sending, by the sending device, the time domain reference signal. According to the reference signal transmission method, one ZC sequence is selected from at least two ZC sequences with different lengths to generate the reference signal sequence, so that the generated reference signal sequence is characterized by a low PAPR and an low RCM, and is used to generate a reference signal, to improve data transmission performance.

Generating reference signal(s) using Zadoff-Chu sequence(s)

This application discloses a wireless communication method, a wireless communications apparatus, and a wireless communications system. An example wireless communication method includes: receiving, by a terminal, indication information of uplink data transmission from a base station; determining, by the terminal, a base sequence configuration of a reference signal sequence corresponding to the modulation scheme of the uplink data transmission, and generating a dedicated demodulation reference signal based on the determined base sequence configuration of the reference signal sequence, where the modulation scheme of the uplink data transmission is one of a plurality of modulation schemes supported by the terminal, the plurality of modulation schemes include at least &#x3c0;/2 binary phase shift keying (BPSK), and a base sequence configuration of a reference signal sequence corresponding to the &#x3c0;/2 BPSK is different from a base sequence configuration of a reference signal sequence corresponding to another modulation scheme in the plurality of modulation schemes.

Wireless communication method, wireless communications apparatus, and wireless communications system

This application proposes a reference signal transmission method and a device. The method includes: converting, by a sending device, a frequency domain reference signal from frequency domain to time domain, to generate a time domain reference signal, where the frequency domain reference signal includes a reference signal sequence mapped to a frequency domain resource group, the reference signal sequence is related to a Zadoff-Chu sequence and a length of the reference signal sequence, and a length value of the Zadoff-Chu sequence is greater than a quantity of minimum time-frequency resource units included in a maximum frequency domain resource that can be allocated; and sending, by the sending device, the time domain reference signal. According to the reference signal transmission method in this application, a performance requirement on a PAPR/RCM of a reference signal can be met, a quantity of blind reference signal detection times can be reduced, and system performance can be improved.

Reference signal transmission method and apparatus

Embodiments of the present disclosure disclose a signal transmission apparatus and non-transitory computer-readable storage medium, and relate to the field of communications technologies. The apparatus comprises a memory storing program instructions and a processor coupled to the memory, wherein the program instructions, when executed by the processor, cause the apparatus to obtain configuration information for use to transmit a signal of a second carrier in coverage space of a first carrier, a spectrum occupied by the first carrier and a spectrum occupied by the second carrier overlap, and a subcarrier of the first carrier and a subcarrier of the second carrier are orthogonal; and transmit the signal of the second carrier according to the configuration information.

Signal transmission apparatus and method, and wireless access node

Embodiments of the present disclosure relate to a data transmission method and a communications device. The method includes: performing an interpolation operation on a first signal sequence to obtain a second signal sequence, where a length of the second signal sequence is greater than a length of the first signal sequence; mapping the second signal sequence onto a subcarrier to obtain a second signal sequence that is on the subcarrier; performing an inverse fast Fourier transform (IFFT) on the second signal sequence that is on the subcarrier, to obtain a time-domain signal, and transmitting the time-domain signal. According to the embodiments of the present disclosure, a delay deviation can be better resisted.

Data transmission method and communications device

In a data transmission method, a terminal device receives control information, and receives data of a transport block (TB); and the terminal devices obtains m code block (CB) groups in the TB, where m is a positive integer, m=min(N, N), Nis a quantity of CBs in the TB, Nis a maximum value of a quantity of CB groups, each of the m CB groups includes at least one CB, Nis determined based on a TB size (TBS) and a maximum value of a data size of a CB, and the TBS is determined based on the control information.

Example spectrum sharing methods and apparatus are described. One example method includes acquiring a cycle period of a shared frequency between a first system and a second system. Time slice allocation information of the cycle period is obtained and sent to a user equipment.

Spectrum sharing method and apparatus thereof

An apparatus is configured to perform a method for user equipment (UE) offloading. The method includes receiving, at a network controller, a measurement report from a UE, the measurement report radio link measurement quantities of a serving cell and one or more candidate serving cells, the measurement quantities measured after interference cancellation or suppression. The method also includes, based in part on the measurement report from the UE, determining whether to offload the UE to a second cell among the one or more candidate serving cells.

System and method for UE-specific offloading

Embodiments of the present disclosure provide a data processing method and apparatus. The method includes: preprocessing, by a transmit end, data transmitted on at least two first-type symbols in a radio frame that are parallel, and converting the data transmitted on the at least two parallel first-type symbols into data transmitted on a shared symbol; adding, by the transmit end, a first CP to the data transmitted on the shared symbol; and sending, to a receive end, the data that is transmitted on the shared symbol and to which the first CP is added.

Data processing method and apparatus

Embodiments of the present invention disclose a reference signal transmission method. A transmitting apparatus multiplies M first symbol sequences by M coefficients respectively to obtain M second symbol sequences, where M is a positive integer greater than 1, the symbol sequence includes L symbols, L is a positive integer greater than 1, and the M coefficients each have a magnitude of 1. The transmitting apparatus maps the M second symbol sequences onto a first time-frequency resource to obtain a frequency domain signal. The transmitting apparatus performs an IFFT operation on the frequency domain signal to obtain a time domain signal. And the transmitting apparatus sends the time domain signal.

In certain embodiments, a method includes generating a first signal and a second signal. The first signal includes at least one first sub-signal, and the second signal includes at least one second sub-signal. A subcarrier frequency spacing of the first sub-signal is M times as large as a subcarrier frequency spacing of the second sub-signal. The method further includes separately sending each first sub-signal and each second sub-signal. In a range of a first preset frequency apart from a reference subcarrier frequency, all the second sub-signals sent on a subcarrier corresponding to a subcarrier frequency whose difference from the reference subcarrier frequency is a non-integer multiple of the subcarrier frequency spacing of the first signal are zero signals. The reference subcarrier frequency is a subcarrier frequency of the first sub-signal adjacent to the second signal in a frequency domain.

Method and apparatus for implementing data transmission

Growing community of inventors

Shanghai, China

Zongjie Wang