Abstract:
A communication method and an apparatus are provided, where the method includes: determining, by a base station, a pre-configured value; and sending, by the base station, a downlink subframe in a first subframe, where the downlink subframe carries a control format indicator and a physical downlink control channel, the control format indicator is used to indicate a quantity of symbols occupied by the physical downlink control channel, and the base station determines a value of the control format indicator based on the pre-configured value or the quantity of symbols occupied by the physical downlink control channel that needs to be sent in the downlink subframe. In this case, in a WCE scenario, PCFICH coverage enhancement may not be performed any longer, and therefore resource consumption is reduced and impact on PDCCH performance is avoided.
Abstract:
Embodiments of the present application relate to the field of wireless communications technologies, and provides a communication method. The method includes: in response to detecting that a carrier is idle, determining, by a base station, a first subframe that is used for sending downlink synchronization signals, where the downlink synchronization signals include a primary synchronization signal and a secondary synchronization signal; and sending the downlink synchronization signals to a terminal in the first subframe based on a subframe number of the first subframe and a first correspondence. Correspondingly, the terminal performs detection of the synchronization signals, and performs frame timing based on at least location information of the secondary synchronization signal in the first subframe and the first correspondence. In this way, downlink synchronization in an LBT mechanism can be implemented.
Abstract:
Embodiments of the present invention provide a broadcast control bandwidth allocation and data transceiving method. The method includes: acquiring location information and channel distribution information that are of current user equipment; preprocessing a time-frequency resource of a channel according to the location information and the channel distribution information that are of the current user equipment; updating bandwidth allocation information according to the preset bandwidth and quantities of each data channel and each control channel and the preset quantities of repetitions corresponding to each data channel and each control channel; and broadcasting broadcast information to the user equipment by using a broadcast channel.
Abstract:
Embodiments of this application provide an anchor channel transmission method and apparatus, and a communications apparatus. According to the method, an anchor channel occupies a lowest frequency or a highest frequency of a system bandwidth, and power boosting is performed on at least the anchor channel. According to technical solutions provided in the embodiments of this application, the anchor channel may occupy the lowest frequency or the highest frequency of the system bandwidth, other anchor channels are adjacent to the anchor channel, and anchor channels in the other anchor channels are adjacent to each other, so that when power boosting is performed on one or more anchor channels, a smallest quantity of RBs lose powers.
Abstract:
Embodiments of this application provide methods for detecting or sending a discovery signal, associated base station, and associated user equipment. A method includes: performing, by a base station, first carrier sense on first R subframes of one radio frame in a time sequence in a first discovery signal measurement timing (DMTC) window; and if the first carrier sense succeeds, sending, by the base station, a discovery signal in M consecutive subframes, where M is greater than or equal to 2, and the first subframe of the M consecutive subframes is located in the radio frame in the first DMTC window. The embodiments of this application are used to support enhanced discovery signal transmission by using a new DMTC, so that to implement accessing UE in a weak coverage scenario, thereby ensuring cell coverage performance.
Abstract:
This present disclosure discloses example communication methods and communications apparatuses. One example communication method includes a terminal device determining a first offset of a first power class and a second offset of the first power class when a power class of the terminal device is the first power class. A compensation amount of the first power class is determined based on the first offset and the second offset. A determination as to whether to camp on a first cell is made based on the second offset and the compensation amount of the first power class.
Abstract:
This application provides a data transmission method and apparatus. The method includes: determining a first frequency hopping pattern and a second frequency hopping pattern, wherein the first frequency hopping pattern and the second frequency hopping pattern comprises a same index set of N indexes corresponding to N channels; sending, based on the first frequency hopping pattern, data in each time unit of a first time period by using one of the N channels; and sending, based on the second frequency hopping pattern, data in each time unit of a second time period by using one of the N channels, wherein the first period and the second period are consecutive time periods each comprising N time units, each time unit starts and ends at starting times of two adjacent channels.
Abstract:
A method includes determining, by a network side device, N fixed channels. The method further includes determining, by the network side device, a first fixed channel from the N fixed channels, sending, by the network side device, a discovery reference signal on the first fixed channel, and performing data transmission on a data channel through frequency hopping. The data channel includes a channel other than the N fixed channels. N is an integer greater than or equal to 2.
Abstract:
The present disclosure relates to subframe configuration indication methods and apparatus. One example method includes determining, by a network device, a quantity of downlink symbols included in an (n+N)th subframe, where N is an integer greater than or equal to 2, and n is an integer greater than or equal to 0, and sending, by the network device and in both a control region and a data region of an nth subframe, downlink control information (DCI) through downlink control channels, where the DCI is used to indicate the quantity of downlink symbols included in the (n+N)th subframe.
Abstract:
Embodiments of the present invention disclose a data transmission method, a base station, and user equipment. The method in the embodiments of the present invention includes: receiving, by a base station, a first target sequence and uplink data that are sent by user equipment; determining, by the base station according to a first mapping relationship, a first target uplink sending parameter corresponding to the first target sequence, where the first mapping relationship is used to indicate a correspondence between an uplink sending parameter and a sequence; and demodulating and decoding, by the base station, the uplink data according to the first target uplink sending parameter.