Abstract: The present invention relates to the field of communications technologies, and in particular, to a CSI reporting method, a CSI receiving method, and an apparatus, to resolve a technical problem that PUCCH resource overheads are relatively large during CSI reporting. In embodiments of the present invention, at least two PUCCH resources are configured for each downlink carrier group. CSI that needs to be reported in one uplink subframe may be obtained, and a format of a corresponding PUCCH resource is determined according to the to-be-reported CSI. For example, the determined format is referred to as a first format. Then, all of the to-be-reported CSI is reported after being added to a first first-format PUCCH resource.

Abstract: A terminal receives downlink scheduling information of a downlink subframe F(i,j), where a set M of preconfigured downlink subframes in which the downlink subframe F(i,j) is located is divided into N subsets of preconfigured downlink subframes, a bit quantity of a hybrid automatic repeat request-acknowledgement HARQ-ACK that needs to be fed back for each downlink subframe in one subset of preconfigured downlink subframes is a predetermined value, and bit quantities of HARQ-ACKs that need to be fed back for any downlink subframes in different subsets of preconfigured downlink subframes are different. The terminal generates a HARQ-ACK codebook according to a receiving status of downlink data. And the terminal generates uplink control information after encoding the HARQ-ACK codebook; and a sending module sends the uplink control information.

Abstract: A network device sends configuration information to a terminal device, where the configuration information includes a scale factor corresponding to each aggregation level in a first aggregation level set; the network device sends DCI in a first DCI format to the terminal device, where an aggregation level corresponding to the DCI in the first DCI format is an aggregation level in the first aggregation level set. The terminal device receives the configuration information, determines, based on the scale factor corresponding to each aggregation level in the first aggregation level set, a quantity of candidate PDCCHs corresponding to each aggregation level in the first aggregation level set; the terminal device receives the DCI in the first DCI format based on the quantity of candidate PDCCHs corresponding to each aggregation level in the first aggregation level set.

Abstract: The present disclosure provides a signal processing method and device. The method includes: sending a first data signal and receiving a second data signal in a first Resource Block (RB) of a first subframe; and further sending a first reference signal according to first reference information and receiving a second reference signal according to second reference information in the first RB, where: the first reference information is different from the second reference information; the first reference information includes: a time-frequency resource location occupied by the first reference signal, and sequence information of the first reference signal; and the second reference information includes: a time-frequency resource location occupied by the second reference signal, and sequence information of the second reference signal. The present disclosure ensures correct receiving of the reference signal.

Abstract: Embodiments of the present invention provide a method for transmitting uplink control information and an apparatus, applicable to a multi-carrier system. A user terminal receives physical layer signaling from a network device, where the physical layer signaling includes first indication information. The user terminal determines, according to the first indication information, a bit quantity of periodic CSI that can be sent on a channel resource or a piece quantity of periodic CSI that can be sent on a channel resource. The user terminal determines, according to the bit quantity or the piece quantity of the periodic CSI that can be sent, to-be-sent periodic CSI from periodic CSI corresponding to multiple downlink carriers. The user terminal sends HARQ-ACK information and the to-be-sent periodic CSI on the channel resource.

Abstract: Embodiments of this application provide a control information sending method and apparatus. A network device generates first control information for a first TB, where the first TB includes n code block (CB) groups, where N is a maximum quantity of CB groups included in the first TB; each CB group includes at least one CB; the first control information includes N control information fields, and the N control information fields are in correspondence with the maximum N CB groups included in the first TB; and a control information field i in the N control information fields is used to indicate whether a CB group corresponding to the control information field i is to be sent or received, and i?[1, N]. In this way, a quantity of bits included in downlink control information can remain fixed, thereby reducing blind detection complexity of a terminal device.

Abstract: A user equipment receives first signaling from a base station through a physical downlink shared channel (PDSCH), and receives second signaling from the base station through a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH), where the first signaling includes a first time division duplexing TDD uplink-downlink configuration, and the second signaling includes a second TDD uplink-downlink configuration; the user equipment determines, according to the first TDD uplink-downlink configuration, an uplink subframe for sending a random access message; and the user equipment sends the random access message to the base station in the determined uplink subframe.

Abstract: In the field of wireless communication technologies, method and apparatus for determining a transport block size (TBS) of a data channel are provided. In a communication network, a terminal device receives control information from a network device. The control information includes modulation indication information and resource information of the data channel. The terminal device determines a modulation order and a code rate according to the modulation indication information, and determines number of time-frequency resources according to the resource indication information of the data channel. The terminal device determines the TBS according to the modulation order, the code rate, and the number of time-frequency resources. Based on the determined TBS, the terminal device decodes the data channel carried on the time-frequency resources or sends the data channel on the time-frequency resources.

Abstract: Embodiments of the present disclosure provide methods for sending and receiving feedback information, user equipment, and an access network device, relate to the field of communications technologies. In one embodiment, UE receives, in a downlink subframe in a preconfigured downlink subframe subset, downlink data that is sent by an access network device by using a downlink shared channel and a DAI index indicator and a DAI total quantity indicator that are sent by using a downlink control channel. The UE determines an uplink subframe for sending feedback information corresponding to the downlink shared channel. The UE determines a codebook of the feedback information according to the downlink assignment index DAI index indicator and the DAI total quantity indicator. The UE performs channel coding on the feedback information according to the codebook. The UE sends the channel coded feedback information.

Abstract: A power control method and apparatus for an uplink control channel are provided. The method includes: determining, by user equipment, to send first uplink control information on a first PUCCH and in a subframe i; determining transmit power for sending the first uplink control information on the first PUCCH and in the subframe i. In the embodiments of the present invention, the transmit power is determined by using a sum of a base power adjustment value and any one of a first power adjustment value determined according to a quantity of bits of the first uplink control information.

Abstract: Embodiments of the present disclosure provide a method for a transmission of uplink control information (UCI), such as hybrid automatic repeat request (HARQ) information. A base station sends first indication information to a user equipment (UE), to instruct the UE to dynamically determine the UCI according to the first indication information, and the base station allocates a physical uplink control channel (PUCCH) resource to the UE to transmit the UCI. The embodiments of the present disclosure may be used to implement a feedback of the UCI information in a carrier aggregation scenario, thereby improving performance of transmitting valid UCI information.

Abstract: A control information communication method and apparatus, the method including receiving, by a terminal device, first control information sent by a network device, where the first control information includes first indication information and information about a first time-frequency resource that carries at least first data including a first bit obtained by encoding a first information block, and the first indication information indicates initial transmission or retransmission of the first information block, and receiving, by the terminal device, second control information sent by the network device, where the second control information includes second indication information and information about a second time-frequency resource that carries at least second data including a second bit obtained by encoding the first information block, and where the second indication information indicates that feedback information for the first information block is determined based on a result of combining and decoding the first

Abstract: A data transmission method and an apparatus are disclosed. The method includes: determining, by an access network device, a transmission mode of service data, where the transmission mode includes a one-time transmission mode and an automatic repeat transmission mode; sending, by the access network device, first indication information to a terminal device, where the first indication information indicates the determined transmission mode; and sending, by the access network device, the service data to the terminal device using the determined transmission mode.

Abstract: Embodiments of the present invention provide a method for transmitting uplink control information and an apparatus, applicable to a multi-carrier system. A user terminal receives physical layer signaling from a network device, where the physical layer signaling includes first indication information. The user terminal determines, according to the first indication information, a bit quantity of periodic CSI that can be sent on a channel resource or a piece quantity of periodic CSI that can be sent on a channel resource. The user terminal determines, according to the bit quantity or the piece quantity of the periodic CSI that can be sent, to-be-sent periodic CSI from periodic CSI corresponding to multiple downlink carriers. The user terminal sends HARQ-ACK information and the to-be-sent periodic CSI on the channel resource.

Abstract: This application provides a downlink information transmission method and apparatus, and a device. The method includes: encoding information into a plurality of transport blocks; determining a time-frequency resource used to send each transport block; sending downlink resource indication information to user equipment, where the downlink resource indication information indicates a time-frequency resource location occupied by an Mth transport block; and sending corresponding transport blocks on the time-frequency resources. The user equipment receives the transport blocks based on the downlink resource indication information and decodes the transport blocks to obtain the information, where the downlink resource indication information indicates a resource of only one transport block. A terminal device may determine a time-frequency resource location of another transport block based on a location parameter of the another transport block, and receive and decode the another transport block.

Abstract: Embodiments of the present invention provide a network listening method and device, where the method includes: determining, by a first device according to a type of a network listening resource, a time-frequency pattern that is of a first sequence and is corresponding to the network listening resource of this type; and then transmitting the first sequence to a second device by using the time-frequency pattern of the first sequence, so that the second device performs network listening according to the first sequence. The time-frequency pattern of the first sequence determined in this process is a time-frequency pattern obtained by transforming a time-frequency pattern of a base sequence, and a network listening signal obtained therefrom, that is, the time-frequency pattern of the first sequence, is simple, which can achieve a purpose of reducing complexity of generating a network listening signal and computational complexity of parsing a network listening signal.

Abstract: A signal processing method and device is disclosed. The method includes: sending a first data signal and receiving a second data signal in a first RB of a time unit; and further sending a first reference signal according to first reference information and receiving a second reference signal according to second reference information in the first RB, where: the first reference information is different from the second reference information; the first reference information includes: a time-frequency resource location occupied by the first reference signal, and sequence information of the first reference signal; and the second reference information includes: a time-frequency resource location occupied by the second reference signal, and sequence information of the second reference signal.

Abstract: A method includes: receiving, by the terminal device, at least one piece of downlink data and DCI corresponding to the at least one piece of downlink data, where the DCI includes first indication information, and the first indication information indicates a target transmission time interval (TTI) for transmitting HARQ-ACK feedback information corresponding to the at least one piece of downlink data; generating, by the terminal device based on second indication information, HARQ-ACK feedback information that needs to be fed back in the target TTI, where the second indication information indicates the number of bits of the HARQ-ACK that needs to be fed back in the target TTI; and sending, by the terminal device, the generated HARQ-ACK feedback information to the network device in the target TTI.

Abstract: A downlink resource scheduling method, a terminal device and a network device are disclosed. In an embodiment a method includes receiving first pre-scheduling indication information sent by a network device, wherein the first pre-scheduling indication information is used to instruct the terminal device to receive a first downlink data channel, receiving, according to the first pre-scheduling indication information, a downlink signal sent by the network device, wherein the downlink signal sent by the network device comprises the first downlink data channel and detecting at least one piece of post-scheduling indication information in the downlink signal sent by the network device, wherein the at least one piece of post-scheduling indication information is used by the terminal device to determine a resource occupied by the first downlink data channel in the received downlink signal.

Abstract: A method for transmitting control information, a user equipment and a network device are disclosed. In an embodiment a method for transmitting control information include receiving, by a user equipment, a first part of downlink control information in a downlink control region sent by a network device and receiving, by the user equipment, downlink data and a second part of the downlink control information in a downlink data region based on the first part of the downlink control information, wherein the downlink data and the second part of the downlink control information is sent by the network device.