Abstract: Embodiments provide an apparatus and method of partitioning of an image or an image slice. In particular, on an image processing apparatus, the image or image slice is split into an integer number of coding tree units in both vertical and horizontal directions. Boundary coding tree units are then at least partially forced-split so that at least one resulting coding unit is a result of binary-tree partitioning, i.e., includes a coding unit which is longer on one side than on the other side. The longer side is parallel or concurrent to the image or image slice boundary. Recursively partitioning coding units that span the picture boundary without the requirement for signaling partition information in a bitstream can be achieved.

Abstract: A buffer status report processing method and an apparatus are disclosed. A network device determines a logical channel or a logical channel group for which a separate buffer status report BSR needs to be reported, and sends separate-BSR reporting indication information. A terminal device receives the separate-BSR reporting indication information sent by the network device, and reports the separate BSR for the logical channel or the logical channel group indicated in the separate-BSR reporting indication information. The network device receives the separate BSR reported by the terminal device, and determines, based on the separate BSR, uplink buffer data amount information corresponding to the logical channel or the logical channel group. According to the BSR processing method, resource scheduling accuracy of the network device is improved.

Abstract: A video coding mechanism is disclosed. The mechanism includes receiving at a decoder, a bitstream including a video coding layer (VCL) network abstraction layer (NAL) unit containing a slice of image data divided into a plurality of tiles. A number of the tiles in the VCL NAL unit are determined. A number of entry point offsets for the tiles is also determined as one less than the number of the tiles in the VCL NAL unit. Each entry point offset indicates a starting location of a corresponding tile in the VCL NAL unit. The number of entry point offsets is not explicitly signaled in the bitstream. The entry point offsets for the tiles are obtained based on the number of entry point offsets. The tiles are decoded at the entry point offsets to generate a reconstructed image.

Abstract: An uplink transmission method and a terminal device, the method including setting, by a terminal device, a first transmit power for a first uplink channel based on a channel priority of the first uplink channel and a channel priority of a first physical random access channel PRACH, where the first uplink channel includes at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH, a first time domain resource on which the first uplink channel is located and a second time domain resource on which the first PRACH is located overlap, the channel priority of the first uplink channel is higher than or equal to the channel priority of the first PRACH, and the first transmit power is greater than 0, and sending, by the terminal device, the first uplink channel at the first transmit power.

Abstract: Example scheduling assignment information transmission methods, systems, and devices are described. One example method includes obtaining, by a user equipment (UE), a multiplexing manner used to indicate a relationship between a time-frequency resource for transmitting scheduling assignment information and a time-frequency resource for transmitting data information. The UE receives downlink control information comprising scheduling assignment resource indication information sent by a network device, and obtains, based on the scheduling assignment resource indication information and the multiplexing manner, resource location information occupied to transmit the scheduling assignment information. The UE can then transmit the scheduling assignment information based on the resource location information occupied by the scheduling assignment information.

Abstract: A chassis of a server comprises a backplane. The backplane is disposed in the chassis of the server, and the backplane includes a first sub-board, a second sub-board, and at least one air baffle. The first sub-board is isolated from the second sub-board. Each air baffle forms an included angle with the first sub-board and forms an included angle with the second sub-board. Space enclosed by the first sub-board, the second sub-board, and a side wall, an upper wall, and a lower wall of the chassis is divided into a first air cavity and at least one second air cavity by using the at least one air baffle. The first air cavity is used for at least one first module to dissipate heat, and the second air cavity is used for at least one second module to dissipate heat.

Abstract: A data processing method and apparatus, and a terminal device are described. The method includes: receiving, by a mobility management device, uplink data sent by a terminal device by using a NAS message, and determining, based on a processing capability of the mobility management device, whether the mobility management device is overloaded; and when the mobility management device is overloaded, instructing, by the mobility management device, the terminal device to transmit the uplink data through a user plane. The data processing method and apparatus may improve communication quality, especially when a bearer between the mobility management device and a service device is not set up, the bearer does not need to be first set up and then released, saving signaling and resources.

Abstract: This application discloses a resource indication method, a network device, and a terminal device, to improve utilization of a resource mapped to a DMRS port. The method includes: sending, by a network device, configuration information to a terminal device, so that the terminal device determines, based on the configuration information, that a second resource in first resources is used to transmit first information or that a third resource in first resources is not used to transmit first information, where the first resources are resources mapped to a DMRS port. In this way, the terminal device can multiplex the resources mapped to the DMRS port.

Abstract: This application describes a frame aggregation method. A first forwarding node device receives a first data frame and a second data frame, where the first data frame includes a first MAC header and a first MSDU, the second data frame includes a second MAC header and a second MSDU, and a destination MAC address in the first MAC header is the same as a destination MAC address in the second MAC header; and generates a first aggregated frame, where the first aggregated frame includes an aggregated MAC header and an aggregated MSDU, the aggregated MSDU includes a first sub-MSDU and a second sub-MSDU, the first sub-MSDU includes the first MSDU and a source MAC address of the first data frame, and the second sub-MSDU includes the second MSDU and a source MAC address of the second data frame. A second forwarding node device sends the first aggregated frame.

Abstract: An augmented reality (AR) apparatus and method, and an optical engine component, where the AR apparatus includes a light-emitting light source, a polarization splitting subsystem, a first image source, a first optical subsystem, and a first combination subsystem. The first optical subsystem includes a first lens group, a first quarter-wave plate, and a first reflection surface. The first optical subsystem is configured to receive second polarized light and output first polarized light to the first combination subsystem. The first combination subsystem is configured to combine the received first polarized light and received external ambient light, and combined light is projected into an eye.

Abstract: A method includes: reporting, by a UE, a CQI value to an eNB; receiving, by the UE, an MCS value sent by the eNB, where the MCS value is determined by the eNB according to the CQI value; and receiving, by the UE, PDSCH data according to the MCS value, where the CQI value and the MCS value are determined according to a second set of tables, where a modulation scheme that can be supported by the second set of tables is higher than 64QAM.

Abstract: A receiver architecture is described for phase noise compensation in the presence of inter-channel interference (ICI) and inter-symbol interference (ISI), particularly for time-frequency packing (TFP) transmissions. The receiver includes a coarse phase noise (PN) estimator, a PN compensation module, an ICI cancellation module, an ISI compensation module, a FEC decoder, and an iterative PN estimator. The iterative PN estimator receives log likelihood ratio (LLR) information from the decoder and provides an iterative PN estimation to the PN compensation module. The decoder also provides LLR to the ISI compensation module, and to at least one other receiver for another subchannel that is immediately adjacent in frequency. The ICI cancellation module receives decoder output from at least one adjacent subchannel, which the ICI cancellation module uses to provide a ICI-cancelled signal.

Abstract: This application provides a method for generating a pilot signal, including: obtaining, by a terminal device, a correlation identifier and a port number; determining, by the terminal device, a pilot sequence based on the correlation identifier; and generating, by the terminal device, the pilot signal based on the pilot sequence and the port number. The correlation identifier indicates how a pilot sequence is determined and whether the pilot sequence is correlated with a time slot.

Abstract: A method and apparatus for timing advance (TA) synchronization for uplink (UL) data transmissions are provided. A base station transmits a TA instruction to a UE. The TA instruction indicates one of at least two TA options. The first TA option indicates direct initial grant-free (GF) uplink (UL) data transmissions. The second TA option indicates indirect initial GF UL data transmissions with the UE initiating TA reference signaling for updating a TA parameter of the UE. The UE performs an initial GF UL data transmission to the base station based on the TA instruction.

Abstract: A communications method is provided, to satisfy a requirement of indicating a random access resource dynamically and effectively reduce resource conflicts caused when PRACH resource configuration is performed. The method includes: sending, by a network device, a first message and a second message to user equipment, where the first message is used to indicate a set of candidate time domain resource units of a physical random access channel of the user equipment, the second message carries first indication information, and the first indication information is used to indicate a time domain resource unit format of a first candidate time domain resource unit in the plurality of candidate time domain resource units; and receiving, by the network device from the user equipment based on the time domain resource unit format, a random access preamble in the first candidate time domain resource unit.

Abstract: A network slice selection method and apparatus are disclosed. The method includes: receiving, by a first SSF device of a VPLMN, a first service request message; obtaining, by the first SSF device, roaming information of UE according to the first service request message; selecting, by the first SSF device, a first network slice instance in the VPLMN for the UE based on the roaming information of the UE.

Abstract: Embodiments provide a core network selection method, an apparatus, and a system. The method includes the following steps: obtaining first dedicated core network (DCN) information from an access network device, where the first DCN information includes information about at least one DCN that can be accessed by the access network device. The method also includes selecting a to-be-accessed DCN from the at least one DCN according to the first DCN information, and sending information about the to-be-accessed DCN to the access network device, so that the access network device determines a core network device according to the information about the to-be-accessed DCN.

Abstract: This application describes a tunnel establishment method. The method may include receiving, by a first network device, a first request message sent by a previous-hop network device, where the first request message is used to request to obtain an RSVP-TE label of the first network device, the first network device supports RSVP-TE and SR-TE, and the previous-hop network device supports RSVP-TE. The method may also include that when the first network device determines that at least one network device in downstream network devices of the first network device on a path of a to-be-established tunnel supports SR-TE, establishing an SR-TE tunnel from the first network device to a second network device in the at least one network device, and generating a tunnel identifier used to identify the SR-TE tunnel. Furthermore, the method may include sending, by the first network device, a first response message to the previous-hop network device, where the first response message includes the tunnel identifier.