Abstract: Embodiments of the present disclosure provide a cache data obtaining method. After detecting a first request message specific to a target data server, a data request device determines, based on a pre-received local cache device list sent by a base station, a target local cache device used to cache service data of the target data server. Subsequently, the data request device establishes a network connection to the target local cache device, and sends a service data request specific to the target data server to the target local cache device by using the network connection. With data of the target data server cached to a local cache device on a base station side, the data request device can directly request the target service data from the target local cache device.

Abstract: The present disclosure relates to a data transmission method and an apparatus, and the method includes: receiving, by a first network node, quick user datagram protocol internet connection (QUIC) data packets from a second network node; sorting, by the first network node, the QUIC data packets, to obtain a sorting result; and sending, by the first network node, the QUIC data packets to a third network node based on the sorting result. In this way, when air interface resources between the first network node and the third network node are relatively insufficient, the second network node sorts the received QUIC data packets, and sequentially sends the QUIC data packets to the third network node based on the sorting result.

Abstract: The present application discloses a system and an apparatus. A terminal send uplink radio resource control (RRC) signaling carrying an enhanced state transition capability of the terminal to the controlling node, the controlling node generates state transition indication information according to the enhanced state transition capability of the terminal, and sends the state transition indication information and information about a target RRC state to the terminal, and the terminal transits from a current RRC state to the target RRC state according to the state transition indication information and the information about the target RRC state.

Abstract: A data transmission method, a network device, and a terminal device are disclosed. The network device determines activation instruction information, where the activation instruction information is used to instruct to enable or disable a transmission control protocol (TCP) quick acknowledgement function. The network device sends the activation instruction information, and if the activation instruction information instructs to enable the TCP quick acknowledgement function, maintains a mapping relationship between a TCP sequence number and a radio link control layer protocol data unit (RLC PDU) sequence number. The terminal device receives the activation instruction information, and enables or disables the TCP quick acknowledgement function according to the activation instruction information, thereby optimizing a data transmission method using a TCP quick acknowledgement scheme.

Abstract: The present invention discloses a state transition method, user equipment, and a radio network controller. The user equipment includes: a receiving unit, configured to receive state transition indication information and information about a target RRC state that are sent by a radio network controller (RNC), where the state transition indication information is used for instructing the user equipment to perform enhanced state transition; and a transition unit, configured to enable the user equipment to transit from a current RRC state to the target RRC state according to the state transition indication information.

Abstract: The present invention provides a data transmission method and apparatus, where the method includes: performing, by UE, security processing on a NAS PDU by using a security parameter and a security algorithm, where data to be transmitted is encapsulated in the NAS PDU; and sending, by the UE, the NAS PDU to a serving SGSN by using an RNC. The present invention can improve efficiency of transmitting a small data packet, and further provide a security mechanism to ensure security of transmitting the small data packet.

Abstract: An acknowledgment packet sending method and device are provided, so as to reduce sending of acknowledgment packets on an air interface, and improve efficiency of air interface resource utilization. After receiving a TCP acknowledgment packet that is sent by a TCP protocol entity unit of a communications device and does not carry data information, an RLC protocol entity unit of the communications device discards the received TCP acknowledgment packet; or determines, according to a sending status of an RLC acknowledgment packet, whether to send a TCP acknowledgment packet to a peer communications device, and performs corresponding processing according to a result of the determining.

Abstract: Embodiments of the present disclosure disclose a service transmission control method, a related device, and a communications system. A service transmission control device receives indication information from a service transmission device, where the indication information is used to indicate target service feature information corresponding to a target service data flow transmitted by the service transmission device, or the indication information is used to indicate a quality of service parameter corresponding to a target service data flow transmitted by the service transmission device, and the target service data flow is one of a plurality of service data flows included in a target service transmitted by the service transmission device; and determines, based on the indication information, a target quality of service parameter corresponding to the target service data flow.

Abstract: The present disclosure relates to service data transmission methods, network devices, and terminal devices. One example method includes obtaining, by a network device, characteristic information of service data, determining, by the network device based on the characteristic information, scheduling information for transmitting the service data, and transmitting, by the network device, the service data to a terminal device based on the scheduling information.

Abstract: A data transmission method, a data receiving device, and a data sending device are disclosed. An RLC protocol entity unit of a data receive end receives a TCP acknowledgement from a TCP protocol entity unit of the data receive end; and the RLC protocol entity unit sends indication information to an RLC protocol entity unit of a data transmit end, where the indication information is used to indicate whether the RLC protocol entity unit needs to generate a TCP acknowledgement. The RLC protocol entity unit receives the indication information from the RLC protocol entity unit, and sends the TCP acknowledgement to a TCP protocol entity unit of the data transmit end based on the indication information, to ensure that the TCP protocol entity unit ultimately receives only one TCP ACK for one TCP data packet.

Abstract: The present invention relates to wireless communications technologies, and in particular, to a terminal, a network device, and a data transmission method in a random access process, so as to resolve a current problem that a transmission delay is relatively long when a terminal transmits a relatively large data packet in a random access process. In the terminal a processing module, is configured to determine that the terminal transmits data of multiple TTIs to a base station in a current random access process; and a transceiver module is configured to send first indication information to the base station, where the first indication information is used to indicate that the terminal transmits the data of the multiple TTIs in the current random access process. In this way, the terminal can transmit data of multiple TTIs in one random access process.

Abstract: A method includes: obtaining, by a terminal, to-be-transmitted uplink service data of a preset granularity; obtaining, by the terminal, a QoS requirement parameter corresponding to the to-be-transmitted uplink service data of the preset granularity; and transmitting, by the terminal, the to-be-transmitted uplink service data of the preset granularity based on the QoS requirement parameter corresponding to the to-be-transmitted uplink service data of the preset granularity. Different data processing is implemented for to-be-transmitted uplink service data of preset granularities corresponding to different QoS requirement parameters, so that QoS requirements of uplink service data of different preset granularities are satisfied.

Abstract: A method includes: selecting a paging channel for a paged user equipment according to rule information, where the paging channel includes a page indicator channel PICH channel or includes a PICH channel and a paging-message-bearer channel, and the rule information includes a quantity of page indicator channels and further includes a preset threshold and/or a correspondence between a user equipment type and a paging channel; calculating a paging occasion for the paged user equipment; and on the paging occasion, sending a page indicator to the paged user equipment through the selected PICH channel and sending a paging message to the paged user equipment through the paging-message-bearer channel, where the paging message carries paging data. The quantity of times that user equipment receives an unnecessary paging message is reduced, and the amount of electricity consumed by the user equipment is further reduced.

Abstract: Embodiments of the present disclosure provide a service optimization processing method, a device, and a system. Sensor information of UE is reported to a network device, the network device predicts a status of the UE based on the sensor information of the UE, and optimizes a service of the UE based on the status, or the network device performs service adjustment based on the sensor information of the UE. In this way, power consumption of the UE can be effectively reduced, and user experience is improved. In addition, network signaling and resource usage can be optimized, and channel resource utilization is improved.

Abstract: Embodiments of the present disclosure disclose a data packet transmission method, including: receiving, by a network device, a first request message sent by user equipment, where the first request message is used to request the network device to allocate data cache space; caching, by the network device in the data cache space, at least a part of a data packet sent by a server device to the user equipment; receiving, by the network device, a second request message sent by the user equipment, where the second request message is used to request the network device to send the cached data packet; and sending, by the network device, a part or all of the cached data packet to the user equipment. Therefore, a data packet can be cached on a network side, so as to resolve a problem that data packet transmission in a data transmission process is not timely.

Abstract: The present invention discloses a resource indication method, a base station, and user equipment. The user equipment includes: a sending unit, configured to send a random access preamble to a base station on a physical random access channel (PRACH), where the PRACH corresponds to at least one acquisition indicator channel (AICH); a detection unit, configured to detect auxiliary indication information and detect, on the at least one AICH, feedback information sent by the base station, where the feedback information includes acquisition indicator (AI) information and extended acquisition indicator (EAI) information; and a determining unit, configured to determine, according to the feedback information and the auxiliary indication information, a resource index of a target resource allocated by the base station in M uplink transmission resources, where M is an integer greater than 32.

Abstract: A service data transmission method and apparatus are provided. The method includes: obtaining, by an information control center, first information from a service server, where the first information includes service information and/or application information; obtaining, by the information control center, second information from user equipment, where the second information includes at least one of service information, mobility information, behavior information, and status information of the user equipment; and controlling, by the information control center, transmission of service data of the user equipment based on the first information and/or the second information. In the embodiments of the present disclosure, transmission of the service data can be controlled based on specific information that is about the service data and that is obtained by the information control center, and different transmission quality is provided for different types of service data.

Abstract: When a condition of handing over user equipment from a cell in which a first network device is located to a cell in which a second network device is located is met, the first network device sends first information to the second network device, where the first information includes at least one of a CWND, a slow start threshold, a window scale factor, a RWND, and a TCP segment length; the slow start threshold is a value of demarcation between a slow start state and a congestion state; the window scale factor is a window scale factor carried in a SYN packet when a TCP connection is set up; the RWND is a maximum data volume that can be received by the user equipment; and the TCP segment length is a length of a maximum TCP segment that can be sent by the first network device.

Abstract: Embodiments of the present disclosure relate to the communications field, and provide a service data packet processing method and apparatus. The method includes: receiving service auxiliary indication information from a first device, where the service auxiliary indication information is used to indicate a processing requirement of the first device for a service data packet, and the first device is at least one of a terminal, a server, or a routing node in a service data packet transmission process. A processing priority of the service data packet is determined based on the service auxiliary indication information, and the service data packet is processed based on the processing priority. An example apparatus includes a at least one processor and a receiver.

Abstract: The present disclosure relates to the field of mobile communications technologies, and in particular, to a link setup method and a device. A first network device may obtain first routing information of a direct link that is set up between a first terminal and a second terminal. In this way, when the two terminals communicate with each other, a service data transmission path may be the first terminal -> a first access network device -> a second access network device -> the second terminal, or may be the first terminal -> a first access network device -> a first core network device -> a second access network device -> the second terminal. Either of the paths is shorter than a prior-art transmission path. Therefore, a transmission delay is shortened, transmission efficiency is improved, and a transmission resource is saved.