Abstract: A data sharing method, server and storage medium including receiving a first part of a first key from a first client, the first key corresponding to encrypted data uploaded to a block of an information sharing system generating a first authorization code corresponding to the encrypted data; transmitting the first authorization code to the first client; based on receiving an access request from a second client for the encrypted data, obtaining a second authorization code and an incomplete key from the access request; based on the second authorization code being the same as the first authorization code and the second authorization code being valid, generating a second key according to the incomplete key and the first part of the first key corresponding to the encrypted data decrypting the encrypted data according to the second key to obtain the plaintext data; and transmitting, to the second client, the decrypted plaintext data.

Abstract: A data sharing method, server and storage medium including receiving a first part of a first key from a first client, the first key corresponding to encrypted data uploaded to a block of an information sharing system generating a first authorization code corresponding to the encrypted data; transmitting the first authorization code to the first client; based on receiving an access request from a second client for the encrypted data, obtaining a second authorization code and an incomplete key from the access request; based on the second authorization code being the same as the first authorization code and the second authorization code being valid, generating a second key according to the incomplete key and the first part of the first key corresponding to the encrypted data decrypting the encrypted data according to the second key to obtain the plaintext data; and transmitting, to the second client, the decrypted plaintext data.

Abstract: Embodiments of the present invention disclose a video data transmission method and a related device.

Abstract: A carrier aggregation transmission method and apparatus are provided. The method includes: bearing N carriers in a preset band, where N is a positive integer greater than 1, and a nominal bandwidth values of the carriers are less than or equal to 5 MHz; aggregating the N carriers, to make nominal channel spacing between adjacent carriers among the N carriers is integral multiples of 0.2 MHz; and transmitting the N aggregated carriers. Besides, by further appropriately setting the chip rate corresponding to the carriers with different nominal bandwidths, the performance of small-bandwidth and narrow-bandwidth aggregation systems is efficiently improved, and existing hardware and algorithms can be reused.

Abstract: A multi-user multiplexing method, a base station, and a user terminal are disclosed. The method includes: a base station weights, using a precoding matrix, multiple data streams to obtain to-be-transmitted data streams mapped onto K physical transmit antennas; weights, using the precoding matrix, a pilot signal to obtain to-be-transmitted pilot signals mapped onto the K physical transmit antennas; and sends the to-be-transmitted data streams and the to-be-transmitted pilot signals to the N user terminals by using the K physical transmit antennas. The to-be-transmitted data streams and the to-be-transmitted pilot signals are mapped onto different time-frequency resources. N is a positive integer greater than or equal to 2, K is a positive integer, and the precoding matrix is calculated according to characteristics of channels from the K physical transmit antennas to the N user terminals.

Abstract: Embodiments of the present invention disclose a video data transmission method and a related device.

Abstract: A relay transmission method and apparatus are provided. The method includes: configuring a subframe of a Time Division Duplex relay frame for a subframe of relay link), where the configuring the subframe of the TDD relay frame for the subframe of relay link includes: configuring a downlink subframe of the TDD relay frame for a DL subframe of relay link, and/or configuring the DL subframe of the TDD relay frame for an uplink subframe of relay link, and/or configuring a UL subframe of the TDD relay frame for the UL subframe of relay link; and performing relay transmission according to the subframe of relay link. When data is transmitted, a subframe that can be used for relay link transmission is configured, data transmission performed by using relay link complies with inherent constraints of a TDD frame structure in the prior art.

Abstract: A carrier aggregation transmission method and apparatus are provided. The method includes: bearing N carriers in a preset band, where N is a positive integer greater than 1, and a nominal bandwidth values of the carriers are less than or equal to 5 MHz; aggregating the N carriers, to make nominal channel spacing between adjacent carriers among the N carriers is integral multiples of 0.2 MHz; and transmitting the N aggregated carriers. Besides, by further appropriately setting the chip rate corresponding to the carriers with different nominal bandwidths, the performance of small-bandwidth and narrow-bandwidth aggregation systems is efficiently improved, and existing hardware and algorithms can be reused.

Abstract: Embodiments of the present invention are applicable to the field of wireless communications technologies, and provide a device-to-device communication method and device. The method includes: receiving, by a base station, a device capability indication of a user equipment; sending a base station capability indication to the user equipment; establishing a first transmission channel, where the first transmission channel is established in a network that is supported by the base station serving the user equipment, and is used to transmit device-to-device communication control information to the user equipment; and sending the device-to-device communication control information to the user equipment through the first transmission channel, so that the user equipment performs transmission of a device-to-device communication signal with another user equipment according to the device-to-device communication control information.

Abstract: A relay transmission method and a network node are disclosed. The method includes: receiving configuration information about a relay link subframe, the relay link subframe is configured in subframes in a period equivalent to an integer multiple of one frame, where the relay link subframe takes on a specific HARQ timeline; and performing relay link transmission according to the relay link subframe. The relay transmission method put forward herein meets various constraint conditions of the LTE FDD system in the relay transmission performed according to the selected relay link subframe, and is backward-compatible with the UE in the existing LTE system.

Abstract: The present invention provides a method for device-to-device communication, a terminal for device-to-device communication and a base station. The method for the device-to-device D2D communication includes: receiving, by a terminal, uplink scheduling signaling transmitted by a base station with in a nth subframe, wherein the uplink scheduling signaling is used for scheduling D2D transmission within a (n+m)th subframe, and n and m are positive integers; implementing, by the terminal, the D2D transmission with in the (n+m)th subframe according to the uplink scheduling signaling. The D2D method, D2D terminal and the base station of the embodiments of the present invention may adopt different transmission modes of D2D control signaling under a condition that different frame structures are determined.

Abstract: A relay transmission method and apparatus are provided. The method includes: configuring a subframe of a Time Division Duplex relay frame for a subframe of relay link), where the configuring the subframe of the TDD relay frame for the subframe of relay link includes: configuring a downlink subframe of the TDD relay frame for a DL subframe of relay link, and/or configuring the DL subframe of the TDD relay frame for an uplink subframe of relay link, and/or configuring a UL subframe of the TDD relay frame for the UL subframe of relay link; and performing relay transmission according to the subframe of relay link. When data is transmitted, a subframe that can be used for relay link transmission is configured, data transmission performed by using relay link complies with inherent constraints of a TDD frame structure in the prior art.

Abstract: A relay transmission method and apparatus are provided. The method includes: configuring a subframe of a Time Division Duplex (TDD) relay frame for a subframe of relay link (S201), where the configuring the subframe of the TDD relay frame for the subframe of relay link includes: configuring a downlink (DL) subframe of the TDD relay frame for a DL subframe of relay link, and/or configuring the DL subframe of the TDD relay frame for an uplink (UL) subframe of relay link, and/or configuring a UL subframe of the TDD relay frame for the UL subframe of relay link; and performing relay transmission according to the subframe of relay link (S202). When data is transmitted, a subframe that can be used for relay link transmission is configured, data transmission performed by using relay link complies with inherent constraints of a TDD frame structure in the prior art, and coverage of a system using a TDD relay frame is expanded, thus improving the throughput.

Abstract: A method, a communication system, and a network entity for group handover are provided. The method includes the following steps. A first tunnel connection is established between a mobile relay station (MRS) and a serving entity (SE). A target entity (TE) obtains group information about the group to be handed over, and the group information includes information about a first tunnel. According to the group information, the TE configures information about a second tunnel for the group, and the information about the second tunnel is required for group handover. The group nodes are handed over from the SE to the TE according to the information about the second tunnel. Thereby, the group information that needs to be transmitted in a handover process is reduced, and problems resulting from the number of handovers can be avoided.

Abstract: A method for implementing a random access of a new access node and a system thereof are provided, which belong to a wireless communication field, and enable the new access node within the coverage of relay stations to implement the random access. In the application, when the new access node is located within the coverage of the relay stations, each of the relay stations notifies an access request sent from the new access node to a synchronization station via a report message, and the synchronization station compares the access request forwarded by each of the relay stations and the access request received by itself from the same new access node, selects a station with the best signal quality of the received access request, and implements the access of the new access node in accordance with the types of selected station and the synchronization station itself.

Abstract: A relay transmission method and a network node are disclosed. The method includes: receiving configuration information about a relay link subframe, the relay link subframe is configured in subframes in a period equivalent to an integer multiple of one frame, where the relay link subframe takes on a specific HARQ timeline; and performing relay link transmission according to the relay link subframe. The relay transmission method put forward herein meets various constraint conditions of the LTE FDD system in the relay transmission performed according to the selected relay link subframe, and is backward-compatible with the UE in the existing LTE system.

Abstract: A relay transmission method and apparatus are provided. The method includes: configuring a subframe of a Time Division Duplex (TDD) relay frame for a subframe of relay link (S201), where the configuring the subframe of the TDD relay frame for the subframe of relay link includes: configuring a downlink (DL) subframe of the TDD relay frame for a DL subframe of relay link, and/or configuring the DL subframe of the TDD relay frame for an uplink (UL) subframe of relay link, and/or configuring a UL subframe of the TDD relay frame for the UL subframe of relay link; and performing relay transmission according to the subframe of relay link (S202). When data is transmitted, a subframe that can be used for relay link transmission is configured, data transmission performed by using relay link complies with inherent constraints of a TDD frame structure in the prior art, and coverage of a system using a TDD relay frame is expanded, thus improving the throughput.

Abstract: A relay transmission method and apparatus are provided. The method includes: configuring a subframe of a Time Division Duplex (TDD) relay frame for a subframe of relay link (S201), where the configuring the subframe of the TDD relay frame for the subframe of relay link includes: configuring a downlink (DL) subframe of the TDD relay frame for a DL subframe of relay link, and/or configuring the DL subframe of the TDD relay frame for an uplink (UL) subframe of relay link, and/or configuring a UL subframe of the TDD relay frame for the UL subframe of relay link; and performing relay transmission according to the subframe of relay link (S202). When data is transmitted, a subframe that can be used for relay link transmission is configured, data transmission performed by using relay link complies with inherent constraints of a TDD frame structure in the prior art.

Abstract: A relay transmission method and apparatus are provided. The method includes: configuring a subframe of a Time Division Duplex (TDD) relay frame for a subframe of relay link (S201), where the configuring the subframe of the TDD relay frame for the subframe of relay link includes: configuring a downlink (DL) subframe of the TDD relay frame for a DL subframe of relay link, and/or configuring the DL subframe of the TDD relay frame for an uplink (UL) subframe of relay link, and/or configuring a UL subframe of the TDD relay frame for the UL subframe of relay link; and performing relay transmission according to the subframe of relay link (S202). When data is transmitted, a subframe that can be used for relay link transmission is configured, data transmission performed by using relay link complies with inherent constraints of a TDD frame structure in the prior art.

Abstract: A relay transmission method and apparatus are provided. The method includes: configuring a subframe of a Time Division Duplex (TDD) relay frame for a subframe of relay link (S201), where the configuring the subframe of the TDD relay frame for the subframe of relay link includes: configuring a downlink (DL) subframe of the TDD relay frame for a DL subframe of relay link, and/or configuring the DL subframe of the TDD relay frame for an uplink (UL) subframe of relay link, and/or configuring a UL subframe of the TDD relay frame for the UL subframe of relay link; and performing relay transmission according to the subframe of relay link (S202). When data is transmitted, a subframe that can be used for relay link transmission is configured, data transmission performed by using relay link complies with inherent constraints of a TDD frame structure in the prior art.