Abstract: Embodiments of the present invention disclose a resource allocation method, a first node, and a second node. The method includes the following steps: A first node receives downlink control information (DCI) from a second node, where the DCI includes resource indication information, and the resource indication information is used to indicate a transmission resource allocation manner; the first node determines a first resource allocation manner based on the resource indication information, where the first resource allocation manner is used to allocate a transmission resource greater than one narrowband; the first node determines an allocated transmission resource based on the first resource allocation manner and the resource indication information; and the first node transmits data by using the allocated transmission resource.

Abstract: The present disclosure relates to retuning methods and apparatus. One example method includes determining a first resource and a second resource, where the first resource is used to send a SRS, the first resource is determined based on a first frequency domain resource and at least one symbol of a first subframe, the second resource is used to send a PUSCH or a PUCCH, the second resource is determined based on a second frequency domain resource and a second subframe, all or a part of the first frequency domain resource is not in the second frequency domain resource, the first subframe is the first subframe in two consecutive subframes, and the second subframe is the second subframe in the two consecutive subframes, and determining, in at least one of the first subframe or the second subframe, a guard period for retuning.

Abstract: A reference signal sending method, a reference signal receiving method, and an apparatus are provided. A first network device determines a first resource. The first network device generates a reference signal corresponding to the first resource. The reference signal includes M parts, and all of the M parts are the same. The first resource does not carry a cyclic postfix of the reference signal. Alternatively, the first resource carries a cyclic prefix of the reference signal and the cyclic prefix corresponding to the reference signal is located only at the start of the 1st part in the M parts. M is a positive integer. The first network device sends the reference signal to a second network device on the first resource.

Abstract: Embodiments of this application disclose a communications method and apparatus. The method may include: determining, by a terminal device, a first signal to be sent on a first uplink carrier in a first time period, and determining a second signal to be sent on a second uplink carrier in a second time period, where when a first reference signal configuration manner is used for the second signal, a priority of the second signal is higher than a priority of the first signal, and the terminal device determines that a first symbol in the first signal is to be discarded; and the terminal device sends another symbol in the first signal other than the first symbol and the second signal to a network device, where the first time period and the second time period are adjacent in terms of time, and the second signal is a PUSCH.

Abstract: This application provides a reference signal sending method, a reference signal receiving method, an apparatus, and a device, to provide a reference signal sending or receiving mechanism. A first network device determines at least one frequency reference point. The first network device generates a reference signal based on the at least one frequency reference point, and sends the reference signal in the first frequency band. A frequency reference point is determined based on a frequency band. In this case, both the first network device that sends the reference signal and a second network device that receives the reference signal may determine the frequency reference point based on the frequency band, and the two network devices may determine a same reference signal at a same frequency domain location, so that the reference signal sent by the first network device can be correctly detected by the second network device.

Abstract: This application relates to the field of communications technologies, and discloses a communication method and a communications apparatus. A terminal device receives first indication information from a network device, where the first indication information indicates an available frequency domain resource, in a bandwidth, which can be used by the terminal device to communicate with the network device. The bandwidth is one carrier bandwidth or one carrier bandwidth part. The available frequency domain resource includes a plurality of non-contiguous frequency domain resource groups, and each frequency domain resource group includes one or more contiguous frequency domain resource blocks. The terminal device determines the available frequency domain resource in the bandwidth based on the first indication information.

Abstract: The present disclosure relates to information sending methods, information receiving methods, and devices. One example information sending method includes receiving, by a terminal device, a first transport block size (TBS) value from a network device, where the first TBS value is included in a second TBS set, the second TBS set includes N TBSs values, and N is a positive integer greater than 1, determining, by the terminal device, a third TBS set based on the first TBS value, where a largest TBS value in the third TBS set is less than or equal to the first TBS value, selecting, by the terminal device, a TBS value from the third TBS set, and sending uplink information based on the selected TBS value.

Abstract: Embodiments of the present invention disclose a resource allocation method, a first node, and a second node. The method includes the following steps: A first node receives downlink control information (DCI) from a second node, where the DCI includes resource indication information, and the resource indication information is used to indicate a transmission resource allocation manner; the first node determines a first resource allocation manner based on the resource indication information, where the first resource allocation manner is used to allocate a transmission resource greater than one narrowband; the first node determines an allocated transmission resource based on the first resource allocation manner and the resource indication information; and the first node transmits data by using the allocated transmission resource.

Abstract: Various embodiments provide a communication method, a communications apparatus, and a computer-readable storage medium. In those embodiments, a first transmit power can be determined for transmitting first information in a first time unit on a first carrier and a second transmit power can be determined for transmitting second information in a second time unit on a second carrier. A third transmit power can be determined for transmitting the second information in a first time period and transmitting the second information in a second time period using the second transmit power or the third transmit power. The second information can be sent in the first time period using the third transmit power. In those embodiments, a sum of powers used by a terminal device to transmit two uplink carriers in a same time period does not exceed a maximum transmit power of the terminal device.

Abstract: A resource allocation method and an apparatus to reduce mutual interference between neighboring cells. The method includes: determining, by a first terminal device based on a physical cell identity PCID of a first cell accessed by the first terminal device and a preset rule, a subcarrier group corresponding to the first terminal device, where the subcarrier group corresponding to the first terminal device includes some subcarriers in a subcarrier set corresponding to the first terminal device. A communications system supports sub-PRB resource allocation.

Abstract: This application discloses a random access method and apparatus. The method includes: receiving, by a first node, first information sent by a second node, where the first information is used to determine a first transmit power, and the first transmit power a power used when the first node sends downlink information to the second node over a first link; and the first link is a link between the first node and the second node, and the first node is an upper-level device of the second node; and determining, by the first node, the first transmit power based on the first information. Therefore, the first node determines the first transmit power based on the first information, and uses the first transmit power when sending the downlink information to the second node over the first link, so that interference between signals received by the second node can be reduced.

Abstract: A signal sending method, a signal receiving method, and a device are disclosed. The signal sending method includes: determining, by a network device, an SSB and indication information, where the indication information is used to indicate that a frequency location of the SSB is one of frequencies in a frequency set, and the frequency set includes a first frequency and a second frequency, or includes a first frequency, a second frequency, and a third frequency; and sending, by the network device, the SSB and the indication information to a terminal device.

Abstract: This application discloses an information indication method, a terminal device, and a network device. The method includes: receiving, by a terminal device, indication information from a network device, where the indication information indicates at least one of frequency location information or bandwidth information, the frequency location information includes one of a number of a first subcarrier, an absolute radio frequency channel number of the first subcarrier, or a first frequency, and the bandwidth information includes one of first bandwidth, a second subcarrier quantity, a first resource block quantity, or a second resource block bitmap; and determining, by the terminal device, a first resource based on the indication information, where the first resource is a to-be-reserved resource. According to this application, reliability of a determined location of a resource that needs to be reserved in a system is improved.

Abstract: A resource configuration method, apparatus and storage medium are disclosed. The method includes: sending, by a network device, first information to a terminal, where the first information is used by the terminal to determine not to send data and/or receive data on a first resource; and the first information includes first indication information used to indicate a first resource block (RB) and second indication information used to indicate a subcarrier occupied by the first resource on the first RB; or the first information includes third indication information used to indicate a first subcarrier, and the first subcarrier is used to determine the first resource. The resource configuration method and apparatus and the storage medium that are provided in the present disclosure can improve resource configuration flexibility.

Abstract: A signal strength measurement method is disclosed, the method including: receiving first indication information, where the first indication information includes first sub-information, second sub-information, and third sub-information, the first sub-information indicates a measurement period for measurement, the third sub-information is used to indicate an offset of a start position of a second time unit for measurement relative to a start position of the measurement period, and the second sub-information is used to indicate an offset of a start position of a first time unit for measurement in the measurement period relative to the start position of the second time unit for measurement; determining a measurement resource based on the first indication information; performing signal strength measurement on a signal on the measurement resource; and sending a measurement result.

Abstract: Embodiments provide an information sending method, an information receiving method, a network device, and a terminal device, to enable the terminal device to determine a correct uplink transmission time, thereby avoiding an uplink transmission failure. For achieving this, a network device determines a first receiving start time and a first sending start time. The first receiving start time is a receiving time at which the network device starts to receive a signal in a first time period, and the first sending start time is a sending time at which the network device starts to send a signal in a second time period. The network device sends indication information to a terminal device to instruct the terminal device to determine a second sending start time. The second sending start time is determined based on the first receiving start time and the first sending start time.

Abstract: Embodiments provide a power determining method, device, and system, and relate to the field of communications technologies, for how to determine an uplink path loss in a 5G system. For achieving this, a terminal receives a first offset value from a network device and determines based on receive power for receiving a downlink signal on a second carrier and the first offset value, power for sending an uplink signal on a first carrier. The first offset value is determined based on a penetration loss on the first carrier and a penetration loss on the second carrier, the first carrier is an uplink carrier of the terminal, and the second carrier is a time division duplex TDD carrier or a downlink carrier of the terminal. Embodiments can be used in a power determining process.

Abstract: A method includes: determining, by a first terminal device, a first timing of a first measurement signal used by a second terminal device for measurement, where a first network device serving the first terminal device is different from a network device serving the second terminal device; determining, by the first terminal device, a second timing of a second measurement signal used by the first network device for measurement; and sending, by the first terminal device, the first measurement signal and the second measurement signal based on the first timing and the second timing respectively.

Abstract: Embodiments of this disclosure provide a method for sending information, a method for receiving information, a network device, and a terminal device. The method includes: determining, by a first network device, first indication information, where the first indication information is used to indicate a first time segment and N second time segments, the first time segment is used by a first terminal device to send a first measurement signal to at least one second terminal device in coverage of N second network devices, and a kth second time segment of the N second time segments is used by the first terminal device to receive a second measurement signal from a second terminal device in the coverage of a kth second network device of the N second network devices, where N is a positive integer, and k=1, 2, . . . , and N; and sending, by the first network device, the first indication information to the first terminal device.

Abstract: Example random access methods and apparatus are described. In one example method, a terminal device receives a system message that is sent by a network device on a first downlink carrier. The system message includes first information for performing random access on a first uplink carrier and second information for performing random access on a second uplink carrier. A frequency of the first uplink carrier is higher than a frequency of the second uplink carrier, and a frequency of the first downlink carrier is the same as the frequency of the first uplink carrier. The terminal device sends a random access request message on the first uplink carrier or on the second uplink carrier, and receives a random access response message that is sent by the network device on the first downlink carrier.