Abstract: A cable includes: plural cable sets each including a pair of core wires, a shielding layer covering the pair of core wires, and an outer layer covering the shielding layer; and plural fixing wires cross-braided outside the cable sets to keep the cable sets in a row position along a lateral direction.

Abstract: A method includes obtaining, by a management device, sub-interface information that includes a correspondence between an identifier of a first sub-interface of a first device and a first network slice identifier, a correspondence between an identifier of a second sub-interface of a second device and a second network slice identifier, and information indicating that the first sub-interface is directly connected to the second sub-interface, and determining, by the management device, a network slice topology based on the obtained sub-interface information.

Abstract: The technology of this application provides a control information transmission method, so that sizes of different downlink control information (DCI) can be aligned, thereby reducing types of DCI sizes and reducing power consumption when a terminal detects DCI. The method includes a terminal device detecting first DCI in a first search space, where the first DCI is used to indicate an active bandwidth part (BWP) of the terminal device, a size of the first DCI and a size of second DCI are aligned, the second DCI can be sent by a network device to the terminal device in a first common search space, and the second DCI is used to schedule a system message, a paging message, or a random access response (RAR).

Abstract: This application provide a control information transmission method, an apparatus, and a system. One example method includes: A first terminal device receives, from a network device, DCI used for indicating a BWP. A quantity of bits in the DCI is a fixed quantity of bits. The DCI is used for scheduling a physical data channel. The BWP is used to transmit the physical data channel.

Abstract: This application provides a random access method, an apparatus, and a system. The method includes: A network device determines M RACH resource sets, where the M RACH resource sets correspond to N terminal types, the N terminal types are determined based on bandwidth types and/or random access types of terminals, and M and N are positive integers; and then sends RACH configuration information to at least one terminal, where the RACH configuration information indicates the M RACH resource sets, the M RACH resource sets are used by the at least one terminal to send a random access request to the network device, and a bandwidth type of any one of the at least one terminal belongs to the bandwidth types for determining the N terminal types.

Abstract: Embodiments of this application provide a random access response method and an apparatus. The method includes: RARs associated with one RO are transmitted based on groups, so that a transport block size of RAR data transmitted each time is reduced, and N bits in DCI format 1_0 of CRC are scrambled by using a RA-RNTI to indicate scheduling information of N RAR groups in a PDSCH. Alternatively, DCI format 1_0 of CRC is scrambled by using identifiers of RAR groups, to correspondingly schedule the RAR groups in the PDSCH. According to this application, a problem of a large transport block caused by a large quantity of RARs being transmitted in a PDSCH can be avoided, so that a modulation order or a bit rate is reduced, and demodulation performance of a terminal device is improved.

Abstract: The present disclosure relates to methods and apparatus for determining an initial bandwidth part. One example method includes determining a frequency resource of a first initial BWP, where the frequency resource of the first initial BWP is included in a frequency resource of a second initial BWP, the frequency resource of the first initial BWP corresponds to a first-type terminal device, the frequency resource of the second initial BWP corresponds to a second-type terminal device, and the terminal devices of two types have different capabilities.

Abstract: The present disclosure provides example signal sending and receiving methods, apparatuses, and devices. One example signal sending method includes a network device sending a first wake-up signal to indicate a terminal device to receive a first data channel, where the first data channel carries at least one of a paging message or a short message, and the short message indicates at least one of whether a system message changes or whether to receive earthquake and tsunami warning system (ETWS) information or commercial mobile alert service (CMAS) information. The first data channel is sent by the network device.

Abstract: A random access method and an apparatus. In one example: A terminal device receives a first wake-up signal, and then determines N random access channel occasions based on a correspondence between the first wake-up signal and the N random access channel occasions. The terminal device determines a first random access channel occasion in the N random access channel occasions, and sends a random access preamble on the first random access channel occasion. A network device uses, as a reception beam, a beam used to send the first wake-up signal, to receive the random access preamble sent by the terminal device.

Abstract: A device includes a processor and a non-transitory computer-readable storage medium coupled to the processor. The non-transitory computer-readable storage medium has programming instructions for being executed by the processor. The programming instructions, when executed by the processor, cause the device to receive configuration information sent by an access network side communications apparatus. The configuration information includes identification information of at least one cell. The device is also caused to detect first indication information sent by the access network side communications apparatus by using a length of a first time as a granularity. The first indication information indicates a transmission structure corresponding to one or more time units included in a second time of the at least one cell identified by the identification information. The length of the first time is different from a length of the second time.

Abstract: An apparatus includes one or more processors and a memory having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to receive a first wake-up signal. The first wake-up signal is one of K wake-up signals, K is an integer greater than or equal to 1, and the K wake-up signals are quasi co-located with K synchronization signal blocks (SSBs), K channel state information-reference signals (CSI-RSs), or K demodulation reference signals (DMRSs). The apparatus is also caused to determine M paging occasions. There is a correspondence between the K wake-up signals and the M paging occasions, and M is an integer greater than or equal to 1. The apparatus is further caused to receive, on the M paging occasions, downlink control information (DCI) used for paging.

Abstract: A communication method and apparatus relate to the field of communication technologies, to enable a network device to support communication of a new type of terminal device without additionally sending a set of complete system information. The method includes: The network device sends a SIB1 and supplementary information. Maximum transmission bandwidth of a first terminal device is different from that of a second terminal device. The supplementary information includes first information and/or second information, the SIB1 does not include the first information, and a parameter value of the second information included in the supplementary information is different from a parameter value of the second information included in the SIB1. After receiving the SIB1 and the supplementary information, the second terminal device accesses a network based on partial information other than the second information in the SIB1 and the supplementary information. Consumed resources for downlink transmission can be reduced.

Abstract: This application provides a method and an apparatus for transmitting initial access configuration information. The method includes: a first terminal device receiving first information that is sent by a network device and that includes initial access configuration information corresponding to a second terminal device. The first terminal device may obtain second information, required by the first terminal device, based on a relationship such as a difference relationship between the second information required by the first terminal device and the first information. The second information includes initial access configuration information corresponding to the first terminal device.

Abstract: A network device sends downlink control information to a first terminal device. The downlink control information includes: time domain resource information, where the time domain resource is a time domain resource on which a first data channel is located; and frequency domain resource information, where the frequency domain resources are a frequency domain resource on which the first data channel is located and a frequency domain resource on which a second data channel is located. The second data channel is located on a time domain resource different from the time domain resource on which the first data channel is located. The first terminal device receives, on the determined time domain resource and frequency domain resource, a signal that is located on the first data channel and that is from the network device.

Abstract: A cable includes: a core wire; an insulating layer covering the core wire in an extrusion molding manner, a shielding layer covering the insulating layer, and a sheath covering the shielding layer, the core wire comprising a pair of inner conductors and the inner insulating layer of the pair of inner conductors are simultaneously covered by extrusion molding. Under the premise of ensuring impedance matching, the cable reduces the distance between the two conductors, so that the cable has lower insertion loss, and the overall size of the cable is also smaller, at the same time, the cable has a high-speed data transmission capability with a signal frequency greater than 40 GHz.

Abstract: A cable includes: a pair of wires including two inner conductors and a respective insulating layer covering each of the two inner conductors; a first shielding layer covering the pair of wires; a second shielding layer covering the first shielding layer; and an outer coating layer covering the second shielding layer, wherein the insulation layer is covered with a sheath layer that is simultaneously extruded and formed, and the sheath layer covers the wires so that the two wires abut each other in parallel.

Abstract: An SRS transmission method and apparatus are provided. The method includes: A terminal device determines a first frequency band, and receives SRS configuration information from a network device, where the SRS configuration information is used to indicate an SRS transmission frequency band. The terminal device determines the SRS transmission frequency band based on the SRS configuration information, where the SRS transmission frequency band is included in the first frequency band. The terminal device transmits an SRS to the network device in the SRS transmission frequency band. A bandwidth of the first frequency band is greater than a maximum channel bandwidth supported by the terminal device. According to the foregoing method, the terminal device can transmit an SRS within a larger frequency resource range, or a bandwidth corresponding to a transmission frequency band of the SRS is more suitable for a terminal device with a low bandwidth capability.

Abstract: A data transmission method and apparatus are provided. The method includes: A terminal device determines a first frequency band, receives first information from a network device, where the first information is used to indicate a first transmission frequency band, determines the first transmission frequency band based on the first information, and transmits data to the network device in the first transmission frequency band. A bandwidth of the first frequency band is greater than a maximum channel bandwidth supported by the terminal device. The first transmission frequency band is used by the terminal device to transmit data. The first frequency band includes the first transmission frequency band. In this way, the network device can dynamically schedule a terminal device with a low bandwidth capability within a larger frequency resource range, thereby obtaining a larger frequency selective scheduling gain and improving data transmission efficiency.

Abstract: A segment routing-based data transmission method includes that a first network device receives a first packet from a second network device, where the first packet includes a first segment identifier (SID); the first network device obtains, based on the first SID, a first network slice identifier corresponding to the first network device; the first network device generates a second packet based on the first packet, where the second packet includes the first network slice identifier; and the first network device sends the second packet.

Abstract: This application provides a data transmission method. The method includes: A terminal device receives first control information sent by a network device, where the first control information indicates configuration information of the terminal device or used to indicate BWP switching information used by the terminal device to perform BWP switching. When the first control information indicates the configuration information, the terminal device performs information configuration based on the configuration information. When the first control information indicates the BWP switching information, the terminal device performs BWP switching based on the BWP switching information. According to the method provided in embodiments of this application, the terminal device may obtain the configuration information or the BWP switching information by detecting only the first control information.