Abstract: An information processing method, an information processing apparatus, a terminal and a network device are provided. The information processing method includes: receiving a beam indication signaling sent by a network device; sending and/or receiving a channel and/or a reference signal corresponding to a target beam according to the beam indication signaling and beam configuration information, where the beam indication signaling includes: at least one activated transmission configuration indicator TCI state group; and the beam configuration information includes: at least one associated beam parameter corresponding to at least one channel and/or at least one reference signal.

Abstract: A transmitter includes a bandwidth configuration unit configured to provide an increased system bandwidth corresponding to a bandwidth extension over multiple component carriers. Additionally, the transmitter also includes a transmit unit configured to employ the bandwidth extension.

Abstract: Disclosed are a communication method and apparatus for improving a transmission gain of an uplink signal. The method includes: a terminal device determines, in an uplink resource, at least one first sub-band for transmitting an uplink signal; the terminal device transmits the uplink signal according to the received indication information, sent by a network device, of the uplink signal and the at least one determined first sub-band, where the indication information is used for indicating a transmission parameter and/or a transmission antenna of the uplink signal.

Abstract: Disclosed in embodiments of the present application are a measurement reporting method and apparatus. The method includes: determining, according to a configuration of a network device, a QCL-Type D parameter and a measurement set for each channel state information reference signal (CSI-RS) group used for measurement; and measuring the measurement set on the basis of the QCL-Type D parameter, and determining N groups of measurement report values, N being a positive integer not less than 1.

Abstract: Provided are a beam indication method and apparatus, and a storage medium. The method includes receiving downlink control information, and determining a target transmission configuration indicator (TCI) state group on the basis of the downlink control information, wherein the target TCI state group is used for representing a channel and/or link to which the target TCI state group is applied; and sending and receiving a signal on the basis of a beam corresponding to the target TCI state group. The beam indication method and apparatus, and the storage medium provided in the present disclosure, identification or indication information of a channel and/or link is introduced into a TCI state group, and a channel and/or link, to which the TCI state group corresponding to each code point is applied, are/is determined, and corresponding beam information is indicated by a code point and on the basis of downlink control information.

Abstract: A beam indication method includes: receiving a beam indication message from a base station, in which the beam indication message includes a first transmission configuration indication (TCI) state ID; obtaining a first TCI state corresponding to the first TCI state ID from a TCI state pool, in which an information field of the first TCI state at most includes two groups of source RS information for indicating beam directions; and determining a beam direction corresponding to an uplink channel and/or a downlink channel based on the source RS information for indicating beam directions.

Abstract: A system and method for providing both localized and distributed transmission modes for EPDCCH is disclosed, where one EPDCCH comprises of one or multiple CCEs. Localized versus distributed transmission may be defined in terms of the EPDCCH to CCE resource mapping. In a localized transmission CCEs are restricted to be contained within one PRB. In a distributed transmission a CCE spans over multiple PRBs. A UE can be configured to either receive the EPDCCH only in localized or only in distributed transmissions. A UE can also be configured to expect EPDCCH transmissions in both localized and distributed transmissions. In each PRB configured by the higher layer as an EPDCCH resource, 24 REs that may be used for any DMRS transmission are always reserved and not used for EPDCCH transmission.

Abstract: A beam failure processing method, a terminal, and a network device are provided. The method includes: obtaining K beam failure recovery (BFR) procedures and a beam failure detection reference signal (BFD RS) set or a control resource set (CORESET) group corresponding to each of the K BFR procedures; where K is a positive integer; for each of the K BFR procedures, performing a beam failure processing according to a reference signal in the BFD RS set corresponding to the BFR procedure or a reference signal associated with the CORESET group corresponding to the BFR procedure; where the CORESET group includes at least one CORESET.

Abstract: Provided are an array selection method, a terminal, a network device, and a storage medium. The method includes sending assistance information to a network device, and the assistance information includes at least one of the following: identifier information of an optimal reference signal required for uplink transmission, and an array-based maximum power reduction (P-MPR) value corresponding to one or more arrays of a terminal when a maximum power exposure (MPE) event occurs; and receiving indication information sent by the network device on the basis of the assistance information, and the indication information is used for indicating an array used by the terminal for subsequent uplink transmission, or for indicating that the terminal performs new uplink beam scanning. The embodiments of the present application avoid the uplink coverage loss caused by an MPE issue.

Abstract: A method of reporting beam failure, a base station, and a terminal are provided. The method includes: in a case that a beam failure of a Secondary Cell (Scell) is detected, sending, through a target cell, a beam failure recovery message of the Scell to a base station.

Abstract: A system and method for providing both localized and distributed transmission modes for EPDCCH is disclosed, where one EPDCCH comprises of one or multiple CCEs. Localized versus distributed transmission may be defined in terms of the EPDCCH to CCE resource mapping. In a localized transmission CCEs are restricted to be contained within one PRB. In a distributed transmission a CCE spans over multiple PRBs. A UE can be configured to either receive the EPDCCH only in localized or only in distributed transmissions. A UE can also be configured to expect EPDCCH transmissions in both localized and distributed transmissions. In each PRB configured by the higher layer as an EPDCCH resource, 24 REs that may be used for any DMRS transmission are always reserved and not used for EPDCCH transmission.

Abstract: A signal transmission method and device are disclosed. The method includes: a network side device first determines transmission information that is used for uplink signal transmission and that corresponds to first resource information, then generates transmission indication information according to the transmission information, and finally indicates the transmission indication information to a terminal so that the terminal determines, according to the transmission indication information, transmission information corresponding to an uplink signal on a frequency domain resource, and transmits the uplink signal according to the transmission information.

Abstract: A base station selects a subset of at least one geographically separated antenna for a user equipment based on a rate of motion of the user equipment. The base station forms at least one layer of data stream including modulated symbols, precodes the at least one layer of data stream into one or more data streams via a linear transformation, and transmits the one or more data streams to the user equipment via the selected subset of at least one geographically separated antenna. In some examples, the base station semi-statically selects the subset of at least one geographically separated antenna for the user equipment in response to the rate of motion less than a predetermined amount; otherwise, dynamically selects the subset of at least one geographically separated antenna for the user equipment.

Abstract: A transmitter includes a bandwidth configuration unit configured to provide an increased system bandwidth corresponding to a bandwidth extension over multiple component carriers. Additionally, the transmitter also includes a transmit unit configured to employ the bandwidth extension.

Abstract: The present disclosure provides an uplink transmission method, a terminal and a network device. The method includes: receiving uplink scheduling information of uplink; determining transmission power of the uplink signal according to configuration information of a target resource or first indication information from a network device, wherein the target resource includes a sounding reference signal resource configured by the network device for obtaining channel state information of uplink, and the first indication information is used to indicate a mode of determining the transmission power of the uplink signal; transmitting the uplink signal according to the transmission power and the uplink scheduling information.

Abstract: Provided in the embodiments of the present application are a signal transmission method and apparatus, and a device and a storage medium. The method includes: configuring first information for a second device, where the first information is used to indicate a time-domain transmission location of a signal corresponding to a first signal resource and/or a first signal resource set; and sending the first information to the second device by means of signaling. Therefore, according to the embodiments of the present application, a second device performs corresponding signal transmission on the basis of the flexible scheduling of a first device, to improve the signal transmission reliability and flexibility.

Abstract: A precoding matrix indication method, a precoding matrix determination method, apparatuses and a medium are provided. The precoding matrix indication method includes: determining, by a network side, a set of sub-band precoding matrices, the set of sub-band precoding matrices being a sub-set in an uplink codebook of an uplink signal; determining sub-band information of precoding matrix indication information of the uplink signal in accordance with the set of sub-band precoding matrices, the sub-band information being used to indicate a sub-band precoding matrix that corresponds to each sub-band and is in the set of sub-band precoding matrices; transmitting the precoding matrix indication information including the sub-band information to a UE. The UE determines the sub-band precoding matrix corresponding to each sub-band in the set of sub-band precoding matrices in accordance with the sub-band information.

Abstract: A method of wireless communication includes determining a first precoding matrix indicator (PMI) value and a second PMI value, the first PMI value indicating a first matrix W1 of a first codebook C1, the second PMI value indicating a second matrix W2 of a second codebook C2, wherein the first matrix W1 and the second matrix W2 together define a precoding matrix W for multi-antenna transmission. The method also includes transmitting the first PMI value at a first periodicity, and transmitting the second PMI value at a second periodicity shorter than the first periodicity. In some examples, the method also includes transmitting a rank indicator (RI) value, where the first PMI value and the second PMI value are determined based on the RI value.

Abstract: The embodiments of the present application provide a method for transmitting an uplink channel, an apparatus, a base station, a terminal and a storage medium. The method includes the following steps: determining an uplink beam or a downlink beam; determining a first beam used for uplink channel transmission according to the uplink beam or the downlink beam, and a predetermined rule or first indication information configured for the terminal by the base station; and transmitting an uplink channel by using the first beam. Therefore, according to the embodiments of the present application, the flexibility in selection of beams used by the uplink channel transmission is improved and the efficiency of the uplink channel transmission is increased.

Abstract: Channel state information (CSI) feedback in a wireless communication system is disclosed. User equipment transmits a CSI feedback signal via a Physical Uplink Control CHannel (PUCCH). If the UE is configured in a first feedback mode, the CSI comprises a first report jointly coding a Rank Indicator (RI) and a first precoding matrix indicator (PMI1), and a second report coding Channel Quality Indicator (CQI) and a second precoding matrix indicator (PMI2). If the UE is configured in a second feedback mode, the CSI comprises a first report coding RI, and a second report coding CQI, PMI1 and PMI2. The jointly coded RI and PMI1 employs codebook sub-sampling, and the jointly coding PMI1, PMI2 and CQI employs codebook sub-sampling.