Abstract: A method and an apparatus for aggregation and transmission of multi-user uplink data, the method including obtaining first indication information by a first terminal device of N terminal devices in a terminal device group, the first indication information being location information of uplink data of the N terminal devices in a first uplink bit sequence including the uplink data of the N terminal devices, obtaining the uplink data of the N terminal devices, determining the first uplink bit sequence based on the first indication information and the uplink data of the N terminal devices, receiving second indication information from a network device, where the second indication information includes information about a first time-frequency resource, obtaining a second uplink bit sequence by performing channel coding on the first uplink bit sequence, and sending the second uplink bit sequence on the first time-frequency resource.

Abstract: Embodiments of this application provide a communication method and apparatus. The method includes: A network device generates a plurality of pieces of first information, where the first information includes at least one of a synchronization signal or system information; and the network device sends the plurality of pieces of first information to a terminal device on a same time domain resource and a plurality of frequency domain resources. Correspondingly, the terminal device receives one or more pieces of first information. According to embodiments of this application, time domain overheads for sending the synchronization signal and/or the system information by the network device can be reduced, and sending power consumption of the network device can be reduced, to facilitate energy saving of the network device.

Abstract: A method for aggregation transmission of multi-user downlink data and an apparatus. A network device performs, based on a specific aggregation rule, bit aggregation on downlink data of a terminal device in a terminal device group, performs channel encoding and modulation on data obtained through the bit aggregation, and sends the data to a plurality of terminal devices participating in aggregation transmission. Each terminal device that receives the downlink data obtains, based on the aggregation rule, respective downlink data from the received data obtained through the bit aggregation. According to this method, the network device performs channel encoding on an aggregated bit sequence, thereby increasing a sequence length before encoding, and improving a coding gain.

Abstract: A chip preparation method and system, and a chip are provided. The method includes: preparing, by using a laser direct writing exposure manner, a first underlying circuit of an impedance Josephson parametric amplifier and a second underlying circuit for testing, to obtain a first chip product; generating, on the first chip product by using the laser direct writing exposure manner, a photoresist structure for preparing a Josephson junction; cutting, from the first chip product, a second chip product on which the second underlying circuit is located and a third chip product on which the first underlying circuit is located; preparing a Josephson junction sample based on a photoresist structure corresponding to the second underlying circuit, to obtain an oxidation condition; and preparing, according to the oxidation condition, the Josephson junction based on a photoresist structure corresponding to the first underlying circuit.

Abstract: This application provides a method for multiplexing uplink control information, and relates to the wireless communications field. When a resource of a first uplink control channel that carries first HARQ-ACK information does not overlap a resource of a second uplink control channel that carries second HARQ-ACK information in time domain, but a resource of a third uplink control channel that carries an SR/CSI overlaps both the resource of the first uplink control channel and the resource of the second uplink control channel in time domain, a base station and UE determine, based on a format of the first uplink control channel, a format of the second uplink control channel, and a format of the third uplink control channel, that third HARQ-ACK information and first UCI are multiplexed for transmission, where the third HARQ-ACK information is the first HARQ-ACK information or the second HARQ-ACK information.

Abstract: This application provides a transmission indication method and a communication apparatus. The method includes: A terminal device receives a medium access control-control element MAC CE or downlink control information DCI. The terminal device does not receive any downlink transmission in one time window based on indication information in the MAC CE or the DCI. According to the solution provided in this application, discontinuous reception DRX transmission can be dynamically and flexibly configured for the terminal device. This helps reduce a performance loss of the terminal device.

Abstract: Embodiments of this application provide an initial access method and an apparatus. In the method, an SSB for space division multiplexing is introduced, that is, a plurality of SSB beams are simultaneously sent on a same time-frequency resource, so that time domain overheads of the SSB are reduced without reducing resolution of the SSB beam.

Abstract: This application discloses a resource indication method and a communication apparatus. The method includes: A terminal device receives first indication information from a network device. The first indication information indicates a first frequency domain resource. The terminal device transmits a first channel on the first frequency domain resource. The first frequency domain resource belongs to a first frequency domain unit of a BWP, the BWP further includes a second frequency domain unit, and a transmission direction of a signal on the second frequency domain unit and a transmission direction of a signal on the first frequency domain unit are independently configured, so that resource indication is more flexible, and resource conflicts are reduced.

Abstract: An initial access method and an apparatus are provided. In the method, an RS set corresponding to an SSB is introduced. The SSB is sent by using a wideband and a wide beam, and an RS in the RS set occupies a small quantity of time domain resources through frequency division multiplexing and is sent by using a narrow beam. A transmit beam of the RS in the RS set is a refinement of a transmit beam of the SSB. Narrow beam training is completed by using the RS set, to find an optimal narrow beam pointing to a UE, so that in the method, time domain resource overheads of the SSB can be effectively reduced while communication efficiency is ensured.

Abstract: In a routing method, an initial chip layout and routing planning information corresponding to the initial chip layout are obtained. The routing planning information includes planning information of a first site in the initial chip layout. The planning information indicates a location region, a routing orientation, and a predefined connection path. A first end of the predefined connection path is connected to the first site. According to the location region and the routing orientation, a first route segment connecting a second site of the initial chip layout and a second end of the predefined connection path is determined. According to the predefined connection path, a second route segment connecting the second end of the predefined connection path and the first site is determined. According to the first route segment and the second route segment, a connection route between the second site and the first site is generated.

Abstract: This application discloses a communication method and apparatus, and relates to the wireless communication field, so that a frequency resource may be flexibly scheduled, a transmission delay is low, and resource utilization is high. The method includes: receiving, from a network device, first indication information used by a terminal to determine a plurality of first frequency units in a first frequency unit set, and detecting first control information on a frequency unit in the plurality of first frequency units, where the first frequency unit is a candidate frequency unit for carrying the first control information, and the first control information is used to schedule data transmission on a second frequency unit.

Abstract: This application discloses that a terminal device determines at least one target time parameter set based on N time parameter sets, where time unit lengths corresponding to at least two of the N time parameter sets are different; determines M target times based on a first time and the at least one target time parameter set, generates a codebook based on response information corresponding to downlink information received at at least one of the M target times, and sends the codebook to a network device at the first time. Correspondingly, the network device determines, based on the response information included in the codebook, whether the downlink information corresponding to the response information is successfully transmitted. Therefore, when the time unit lengths corresponding to the at least two of the N time parameter sets are different, the network device and the terminal device have a consistent understanding of the codebook.

Abstract: A method of designing an air bridge layout in a circuit layout is performed by a computer device, and in particular, relates to the field of chip technologies. The method includes: obtaining position information of skeleton lines of CPW lines based on position information of the coplanar waveguide CPW lines in the circuit layout, each skeleton line being a center line of a corresponding CPW line; obtaining an interweave pair from the skeleton lines of the CPW lines based on the position information of the skeleton lines of the CPW lines, the interweave pair including two parallel skeleton line segments; and deploying air bridges on the circuit layout, the air bridges being deployed along the skeleton lines, and the air bridges on the two skeleton lines in the interweave pair being arranged in a staggered manner (340). According to the foregoing solution, interferences between air bridges on different CPW lines are reduced, and a success rate of subsequent circuit fabrication is improved.

Abstract: In a circuit layout processing method, an initial circuit layout of a chip is obtained. The initial circuit layout includes initial position information of a line in the chip. A correction value of the line is obtained. The correction value is set based on an etching processing error of the chip. A boundary of the line in the initial circuit layout is corrected based on the initial position information and the correction value to obtain a corrected circuit layout.

Abstract: This application provides a cell access method, a communication apparatus, and a computer storage medium. The method includes: A network device sends one or more reference signals to a terminal. The terminal sends corresponding first indication information to the network device based on a first reference signal in the received one or more reference signals, where the first indication information indicates the network device to send a downlink common signal, so that the terminal may access a target cell based on the downlink common signal.

Abstract: This application provides a method for multiplexing uplink control information, and relates to the wireless communications field. When a resource of a first uplink control channel that carries first HARQ-ACK information does not overlap a resource of a second uplink control channel that carries second HARQ-ACK information in time domain, but a resource of a third uplink control channel that carries an SR/CSI overlaps both the resource of the first uplink control channel and the resource of the second uplink control channel in time domain, a base station and UE determine, based on a format of the first uplink control channel, a format of the second uplink control channel, and a format of the third uplink control channel, that third HARQ-ACK information and first UCI are multiplexed for transmission, where the third HARQ-ACK information is the first HARQ-ACK information or the second HARQ-ACK information.

Abstract: This application provides a precoding matrix indicator feedback method and a communication apparatus, and relates to the field of communication technologies. The method is applied to a precoding process, and specifically includes: A terminal first determines a first PMI, and then sends the first PMI to an access network device. The first PMI indicates a precoding matrix W. The precoding matrix W includes R precoding vectors wi, where i=0,1,2, . . . , R?1. The precoding vector wi is a column vector with a length of N1×N2×Ng. Ng represents a quantity of antenna panels. N1 represents a quantity of ports in a first dimension on one antenna panel. N2 represents a quantity of ports in a second dimension on the antenna panel. N1, N2 and Ng are all positive integers, and at least one of N1, N2, and Ng is greater than or equal to 2.

Abstract: A communication method, and a communications apparatus. The method includes: a terminal device determines uplink information; when the uplink information is first feedback information, the terminal device determines a first uplink control channel resource corresponding to the first feedback information, and sends the first feedback information on the first uplink control channel resource; or when the uplink information includes A-CSI, the terminal device determines a second uplink control channel resource corresponding to the uplink information, and sends the uplink information on the second uplink control channel resource, where the first uplink control channel resource is different from the second uplink control channel resource.

Abstract: This application provides a wireless communication method and a communications apparatus, to implement semi-static codebook feedback at a sub-slot granularity. The method includes: determining a candidate opportunity set, where a quantity of candidate opportunities included in the candidate opportunity set is a maximum quantity of non-overlapping data transmission opportunities included in a data transmission opportunity set, the data transmission opportunity set corresponds to a first set, the first set includes one or more downlink sub-time units, and the one or more downlink sub-time units correspond to a target uplink sub-time unit; and sending or receiving feedback information in the target uplink sub-time unit, where the feedback information includes a hybrid automatic repeat request acknowledgement HARQ-ACK codebook corresponding to the candidate opportunity set.

Abstract: A communication method includes: a terminal device determining a first time unit for receiving downlink data, determining, based on a nonnegative integer k1 corresponding to the downlink data, a second time unit in which feedback information corresponding to the downlink data is located, where a length of the first time unit is greater than or equal to a length of the second time unit, k1 represents a quantity of time units from the first time unit to the second time unit, and the length of the second time unit is less than one slot, and sending, in the second time unit, a feedback codebook to the network device, where the feedback codebook includes the feedback information corresponding to the downlink data. A transmission latency of downlink data is reduced.