Abstract: Methods, systems, and devices related to wireless communication are described. A method of wireless communication includes determining, by a communication device, one or more silent subcarriers among a plurality of subcarriers in a physical resource block (PRB) associated with a communication system; and determining to mute the one or more silent subcarriers in a resource mapping process based on a signaling instruction.

Abstract: A method and an apparatus for transmitting and receiving a signal, a storage medium and an electronic apparatus are provided. The method includes: determining transmission information of a group Wake up signal (WUS) according to at least one of the following configuration information: one or more sequences corresponding to the group WUS, time domain location information corresponding to the group WUS, and frequency domain location information corresponding to the group WUS, wherein the group WUS is a WUS corresponding to a group of one or more terminals; and transmitting the WUS according to the transmission information.

Abstract: Provided are wake-up signal sending and receiving methods and apparatuses and storage media. The wake-up signal sending method includes sending a WUS by using at least one of a first sending manner: sending a first WUS in a first basic unit and sending a second WUS in a second basic unit; a second sending manner: determining, according to a preset condition, whether a third WUS or a fourth WUS is sent in a basic unit; a third sending manner: determining, according to first signaling, whether the fourth WUS is sent in the basic unit or one of the third WUS or the fourth WUS is sent in the basic unit; or a fourth sending manner: determining, according to second signaling and a basic unit index, a fifth WUS sent in the basic unit.

Abstract: A data transmission method and device, and a resource determination method and device, the method including user equipment (UE) transmitting a signal on one or more first uplink channel resources, where the signal includes one of the following: a single subcarrier signal, a multi-subcarrier signal, or a random access signal.

Abstract: Provided are modulation and coding method and apparatus, channel quality indicator (CQI) reporting method and apparatus, a device and a storage medium. In an MCS table set, an MCS table supporting a minimum spectral efficiency less than 120/1024*2 is added, and a selecting rule of an MCS table is provided. Therefore, compared with an MCS table set in the related protocols, communications requirements of higher reliability, higher coverage and lower transmission rate can be satisfied. Moreover, further provided are CQI reporting method and apparatus, a device and a storage medium to accurately satisfy current communications requirements, especially the communications requirements of higher reliability, higher coverage and lower transmission rate.

Abstract: Provided are a data modulation method and apparatus, and a storage medium. The method includes: modulating a first data sequence to obtain a second data sequence; inserting a third data sequence into the second data sequence to obtain a fourth data sequence, where each of data, except for a first one and a last one in the fourth data sequence, of the third data sequence in the fourth data sequence satisfies that power of the each datum is equal to average power of two data adjacent to the each datum, and a phase of the each datum is within an angle between the two data adjacent to the each datum; and transmitting the fourth data sequence.

Abstract: Provided are a data communication processing method and device. The method includes: acquiring a modulation order and a target code rate; calculating an intermediate number Ninfo of information bits at least according to a total number of resource elements, the modulation order and the target code rate; quantizing the intermediate number Ninfo of the information bits to obtain the quantized intermediate number N?info; determining a transport block size (TBS) according to the quantized intermediate number N?info.

Abstract: A data modulation method and device utilized in a multi-carrier system. The method includes: performing, by a transmitting node, data modulation by adopting at least two different waveform functions.

Abstract: Described are methods, systems and devices for the transmission and reception of channel quality indicator (CQI) information over an physical channel to facilitate, for example, meeting block error rate requirements in emerging systems. One example method includes transmitting an index associated with a quality of the physical channel, where the index corresponds to an entry in a parameter table set. Another example method includes receiving an index associated with the quality of the downlink physical channel, and transmitting a plurality of data blocks, where contents of the plurality of data blocks are encoded and modulated using a code rate and a modulation scheme, respectively, which are selected from an entry in the parameter tables corresponding to the index. In both exemplary methods, one or more parameter tables include at least three entries comprising code rates having values less than or equal to 120/1024.

Abstract: Methods, systems, and devices related to reducing out-of-band emissions for Orthogonal Frequency-Division Multiplexing (OFDM) technology are described. In one representative aspect, a method for wireless communication includes obtaining N groups of spread data by multiplying N groups of data with N spreading codes, combining the N groups of spread data into a data sequence, modulating the data sequence onto 2K subcarriers, and transmitting the modulated data sequence. In particular, an individual spreading code of the N spreading codes comprises 2K elements organized as a sequence of K pairs, wherein the pairs comply with at least one of (1) two elements in a pair have a 180-degree phase difference or (2) corresponding elements in neighboring pairs have a 180-degree phase difference. N and K are integers greater than 1 and N is less than 2K.

Abstract: Disclosed are a method of configuring symbols and a device using the same. Through the use of a symbol configuration parameter B which includes K values corresponding to different symbol intervals or symbol numbers respectively, a symbol interval and a number of symbols in a subframe may be configured according to the symbol configuration parameter B. K is an integer greater than 1.

Abstract: Disclosed are a data sending and receiving method, apparatus, and device, and a computer readable storage medium. The method includes: when a first transmission frequency band sends data by adopting an extended sequence modulation data sending rule, data to be transmitted on spaced sub-carriers of the first transmission frequency band is respectively multiplied by each extended element in an extended sequence with a length of 2K to obtain extended data with a number of 2K, where there is another extended element with a phase difference of ? relative to each extended element in the extended sequence; and the extended data with the number of 2K is sent on 2K spaced sub-carriers of the first transmission frequency band, where K is a positive integer.

Abstract: Disclosed are a method of configuring symbols and a device using the same. The method includes: configuring a symbol interval and a symbol number in a subframe according to a symbol configuration parameter B, wherein the parameter B includes K values, the K values of the parameter B correspond to different symbol intervals or symbol numbers respectively, and K is an integer greater than 1.

Abstract: A data modulation method and device utilized in a multi-carrier system. The method includes: performing, by a transmitting node, data modulation by adopting at least two different waveform functions.

Abstract: Disclosed is a method and system for performance test. The method includes: configuring a static channel between a transmitting end and a receiving end in a system configured with M transmitting antenna ports and N receiving antennas, wherein singular values of a N*M channel matrix of the static channel are equal, wherein, M=4 and N=4; or M=8 and N=4; or M=8 and N=8. The transmitting end transmits data to the receiving end by the static channel. When the M=4 and the N=4, the N*M channel matrix is a 4×4 channel matrix as follows: [ 1 j 1 j 1 - j 1 - j 1 j - 1 - j 1 - j - 1 j ] ; or a matrix obtained after any row swap or column swap operation is performed on [ 1 j 1 j 1 - j 1 - j 1 j - 1 - j 1 - j - 1 j ] .

Abstract: Disclosed is a method and system for performance test. The method includes: configuring a static channel between a transmitting end and a receiving end in a system configured with M transmitting antenna ports and N receiving antennas, wherein singular values of a N*M channel matrix of the static channel are equal, wherein, M=4 and N=4; or M=8 and N=4; or M=8 and N=8. The transmitting end transmits data to the receiving end by the static channel. When the M=4 and the N=4, the N*M channel matrix is a 4×4 channel matrix as follows: [ 1 j 1 j 1 - j 1 - j 1 j - 1 - j 1 - j - 1 j ] ; or a matrix obtained after any row swap or column swap operation is performed on [ 1 j 1 j 1 - j 1 - j 1 j - 1 - j 1 - j - 1 j ] .

Abstract: Disclosed is a method and system for performance test. The method includes: configuring a static channel between a transmitting end and a receiving end in a system configured with M transmitting antenna ports and N receiving antennas, wherein singular values of a N*M channel matrix of the static channel are equal, wherein, M=4 and N=4; or M=8 and N=4; or M=8 and N=8. The transmitting end transmits data to the receiving end by the static channel. The abovementioned technical solution can implement the performance test in 4 or 8 receiving antennas, and it can implement CQI reporting precision performance test of static channel in 4 or 8 receiving antennas.

Abstract: Disclosed is a method and system for performance test. The method includes: configuring a static channel between a transmitting end and a receiving end in a system configured with M transmitting antenna ports and N receiving antennas, wherein singular values of a N*M channel matrix of the static channel are equal, wherein, M=4 and N=4; or M=8 and N=4; or M=8 and N=8. The transmitting end transmits data to the receiving end by the static channel. The abovementioned technical solution can implement the performance test in 4 or 8 receiving antennas, and it can implement CQI reporting precision performance test of static channel in 4 or 8 receiving antennas.