Ntt Docomo, Inc.

Runxin Wang

Xiaolin Hou

Wenjia Liu

Satoshi Nagata

Chongning Na

Xin Wang

Jing Wang

Yuki Matsumura

Daiki Takeda

Kazuki Takeda

Kazuaki Takeda

Liu Liu

Yuichi Kakishima

Yousuke Sano

Juan Liu

Mingyuan Yang

Huiling Li

Xiangming Li

Neng Ye

Dongbo Feng

A user terminal includes: a control section to which one mode of a plurality of modes associated with different operations of one or more transmission points is configured; and a receiving section that receives one or more downlink shared channels from the one or more transmission points according to the mode. According to one aspect of the present disclosure, it is possible to appropriately operate in response to operations of one or more transmission points.

User terminal and radio communication method

A method and device for transmitting reference signals are provided in the present disclosure, where the method for transmitting reference signals is performed by a user terminal and time-frequency resources for the user terminal are divided into multiple groups of time-frequency resources. The method includes: selecting a reference signal port for each group of time-frequency resources from candidate reference signal ports; and transmitting reference signals by using the reference signal port corresponding to each group of time-frequency resources.

Method and device for transmitting reference signals

Provided by an embodiment of the present invention are a user equipment and base station that may be used in a wireless communication system, or a method performed by the user equipment and the base station. The user equipment according to the embodiment of the present invention includes: a receiving unit that is configured to receive multiple access signature information for the user equipment from a base station, wherein the multiple access signature information includes correction information indicating a reference signal sequence sent with respect to the user equipment; and a control unit that is configured to determine the reference signal sequence of the user equipment according to the received correction information.

User equipment, base station, and method for modifying demodulation reference signal (DMRS) sequences

A communication apparatus is disclosed including a processor that performs a first encoding procedure to generate a first sequence of encoded bits from a first sequence of bits, and performs a second encoding procedure to generate a second sequence of encoded bits from a sequence of known bits; and a second sequence of bits comprising the first sequence of bits and the first sequence of encoded bits; and a transmitter that transmits a signal generated from the second sequence of encoded bits, wherein the second sequence of encoded bits is determined based on a length of the second sequence of bits.

Communication apparatus and decoding method

A user terminal includes: a receiving section that receives information related to a plurality of resources respectively associated with a plurality of transmission points, wherein at least one of an offset and a guard domain is present between the plurality of resources; and a control section that performs communication with the plurality of transmission points based on the information. According to one aspect of the present disclosure, it is possible to appropriately perform communication that uses a plurality of transmission points.

Embodiments of the present invention provide information transmitting and receiving methods, a user equipment, and a base station. The information transmitting method performed by the user equipment includes: receiving indication information, the indication information indicating sub-block sizes of a plurality of sub-blocks obtained by splitting an information block to be transmitted; splitting the information block to be transmitted into the plurality of sub-blocks according to the indication information; processing respective sub-blocks to generate transmission data, and transmitting the transmission data.

Splitting an information block into sub-blocks

Disclosed are a resource allocation method for demodulation reference signals and a base station. The resource allocation method for demodulation reference signals executed by the base station includes: determining an allocation method for a resource required for transmitting a plurality of demodulation reference signals and a parameter for generating the plurality of demodulation reference signals, the plurality of demodulation reference signals respectively corresponding to a plurality of user equipments, the allocation method being capable of supporting transmission of the plurality of demodulation reference signals on the same time domain resource, and the parameter being capable of making the demodulation reference signals sent with the same time frequency resource distinguished from each other; and transmitting information indicating the allocation method and information indicating the parameter to the plurality of user equipments.

Resource allocating method for demodulation reference signal and base station

Provided are a method and device for uplink power control. A user terminal performing the method includes: a receiving unit configured to receive signature information for the user terminal from a base station; and a control unit configured to determine a transmission power of the user terminal according to the received signature information.

Method and device for uplink power control

Provided are a method for transmitting signals and corresponding terminals, and base stations, where the method for transmitting signals is performed by a terminal in a communication system. The method includes determining, whether to transmit an additional reference signal to a base station in the communication system according to information on channel conditions of the terminal; transmitting a main reference signal to the base station, where the main reference signal is used for channel estimation between the terminal and the base station; and when determining to transmit an additional reference signal to the base station, transmitting an additional reference signal to the base station according to configuration information of the additional reference signal.

Method for transmitting signals and corresponding terminals, and base stations

A method is presented for transmitting uplink control information and a mobile station. The method for transmitting the uplink control information includes: adding padding bits to initial control information to generate uplink control information, where the initial control information includes first information having a same number of bits for RANKs of different channel matrices and second information having a same or different number of bits for RANKs of different channel matrices; and transmitting the uplink control information.

Method for transmitting uplink control information and mobile station

The present disclosure provides a communication method and a corresponding user terminal, and a base station. The communication method performed by the user terminal includes receiving information about modulation and coding from the base station; and determining a spreading parameter for the user terminal according to the information about modulation and coding, wherein the spreading parameter is used for the user terminal to spread symbols.

Communication method and corresponding user terminal, and base station

Disclosed are a method and an encoder for performing polar coding on an input data sequence to generate a polar code. The encoding method including: generating, based on a first order index set, a second order index set for parent code length of the polar code, each order index of the first or second order index set representing a priority order of transmitting an information bit in a bit position indicated by the order index relative to transmitting information bits at bit positions indicated by other indexes; spreading, according to the second order index set, the input data sequence to a data sequence with bit number equal to the parent code length; performing polar coding on the spread data sequence to generate the polar code.

Encoding method and encoder

A method and an apparatus for rate matching interleaving for polar codes are provided. The method includes: obtaining a first codeword bit sequence; dividing the first codeword bit sequence to obtain one or more segments; performing intra-segment and/or inter-segment interleaving on the one or more segments to generate an interleaved bit sequence.

Growing community of inventors

Beijing, China

Runxin Wang