Abstract: A random access method and apparatus for supporting multiple TTIs and a communications system. The random access method includes: transmitting a preamble for requesting random access by a UE to a base station via a first message; a TTI type of the UE is indicated by the first message; and receiving by the UE a random access response transmitted by the base station via a second message; different TTI types correspond to different random access responses. Hence, latency of a random access procedure of a UE having a short TTI may be greatly lowered.

Abstract: Embodiments of this disclosure provide a relay selection method and apparatus and a system. The method includes: relay equipment broadcasts relay discovery information, the relay discovery information including identifier information (a relay UE ID) of the relay equipment and identifier information (a cell ID) of a serving cell of the relay equipment, so that remote terminal receiving the relay discovery information selects relay equipment according to the relay discovery information or transmits relay information of discovered relay equipment to an eNB, thus the eNB may select relay equipment for the remote terminal. With the embodiments of this disclosure, the serving cell may learn a cell where a relay to which the terminal accesses is located, so as to perform configuration for the terminal or perform path switching of downlink data.

Abstract: A method for processing in-device coexistence configuration information, apparatus and system. The method includes: notifying, by a source base station to a target base station, first in-device coexistence configuration information configured by the source base station for terminal equipment, when handover from the source base station to the target base station occurs in the terminal equipment. In this way, the source base station may notify the first in-device coexistence configuration information configured by it for the terminal equipment to the target base station; the target base station receives the first in-device coexistence configuration information, determines whether to configure the terminal equipment with in-device coexistence configuration information, and then notifies the source base station of related configuration information via a handover command. Wherein, when handover occurs in the terminal equipment, the in-device coexistence configuration information may be processed effectively.

Abstract: A data processing method and apparatus for LTE and WLAN aggregation and a communications system. The data processing method includes: receiving, by a WLAN termination in a WLAN link, data transmitted by a PDCP layer in an LTE link, and transmitting the data transmitted by the PDCP layer to an LLC layer in the WLAN link after processing; and feeding back highest successfully delivered PDCP sequence number information and/or unsuccessfully delivered PDCP sequence number information to the PDCP layer in the LTE link. Hence, a problem that an LLC layer is unable to provide transmission status indication necessary to a PDCP layer may be effectively solved.

Abstract: A method and apparatus for updating a measurement identity and a system. The method includes: checking each measurement identity in a measurement identity list included in a pre-stored measurement configuration variable by terminal equipment after performing connection reconfiguration or connection re-establishment; and removing the measurement identity from the measurement configuration variable by the terminal equipment, if reporting configuration associated with the measurement identity includes a measurement event related to a frequency at which a cell belonging to a secondary cell group of the terminal equipment is operating and a measurement object related to the measurement event no longer satisfies a requirement of the measurement event or a cell for comparing in the measurement event no longer exists.

Abstract: A method for operating a user equipment (UE) includes receiving, by the UE from a network, a mobile subscriber identifier for the UE, the mobile subscriber identifier being exclusively assigned to the UE within a wireless tracking area of the network, and transmitting, by the UE to a relay node, an initial message of an access procedure for accessing a user data service of the network, wherein the initial message comprises a request to connect to a control node of the network, and wherein the initial message includes the mobile subscriber identifier, and an indication to relay the initial message over a first signaling radio bearer (SRB) to the control node.

Abstract: A resource configuration method and apparatus of reference signal and a communications system. The resource configuration method includes: configuring one or more resources by a base station for a first reference signal which is precoded with one or more beam weighting coefficients, and configuring one or more resources for a second reference signal which is not precoded with one or more beam weighting coefficients or precoding of which is unknown to a UE; and transmitting one or more resource configurations of the first reference signal and one or more resource configurations of the second reference signal to the UE. Hence, a 3D MIMO system may flexibly support reference signals of multiple types.

Abstract: A transmission method and device for sidelink information and a communication system are provided. The transmission method includes: transmitting discovery information by a relay UE, the discovery information at least including a relay ID of the relay UE, relay movement status information and sidelink carrier information. Hence, a remote UE may perform relay discovery, and expansion of coverage of a cell may be achieve.

Abstract: Embodiments of this disclosure provide a relay reselection method and apparatus and a system; includes: relay equipment monitors a triggering condition for relay reselection; the relay equipment judges whether the triggering condition for relay reselection is met; and the relay equipment transmits relay reselection indication information to a remote terminal taking the relay equipment as a relay when the triggering condition for relay reselection is met, to indicate the remote terminal to perform relay reselection; wherein, the triggering condition for relay reselection is that an air interface channel of the relay equipment is out of synchronization or is about to be out of synchronization, or a notification of terminating a relay function is received, or power of the relay equipment is insufficient. With the embodiments of this disclosure, a time of interruption due to a poor relay link may be reduced, and occurrence of long-time traffic interruption may be avoided.

Abstract: A method for connection management by a user equipment includes transmitting a re-establishment request for a first connection of a first protocol layer in response to determining that a connection re-establishment condition is met, receiving a re-establishment response indicating if a re-establishment of the first connection of the first protocol layer is allowed, and completing the re-establishment of the first connection of the first protocol layer when the re-establishment of the first connection of the first protocol layer is allowed, wherein a context of a second protocol layer of the user equipment is unchanged.

Abstract: A deactivation method and apparatus for a secondary cell and a communications system. The deactivation method includes: restarting a deactivation timer associated with a first SCell carrying a PUCCH, in a case where a deactivation timer is restarted or a channel quality indicator report is transmitted in any second SCell in a secondary PUCCH cell group. Hence, a case will not occur where understanding of an activation state of a secondary cell by a UE and a base station is inconsistent due to an UE autonomous deactivation mechanism.

Abstract: A method and apparatus for allocating C-RNTI and a communication system. The method includes: generating, by a base station, an expanded C-RNTI for a user equipment, a length of the expanded C-RNTI being greater than 16 bits; and transmitting the expanded C-RNTI to the user equipment. Thereby, a structure of the C-RNTI may be enhanced, and a problem of allocation collision of C-RNTIs in case of a large number of carrier aggregation may be effectively eliminated.

Abstract: A transmission method and apparatus of discovery information and a communications system. The transmission method of discovery information includes: transmitting indication information indicating a size of discovery information by a user equipment to a base station; receiving one or more resources which is/are allocated by the base station according to the indication information; and transmitting the discovery information by using the one or more resources to perform sidelink discovery. Hence, a case of waste of resources or being unable to carry discovery information may be reduced as possible even if sizes of discovery information are different due to different scenarios.

Abstract: A communication system, a user equipment and a base station are disclosed. The communication system includes a user equipment and a base station, wherein the user equipment is configured in a first communication system and having a co-existence working mode in which the user equipment performs a first communication with a base station in the first communication system and performs a second communication with an apparatus of a second communication system, which is different from the first communication system in a time-division multiplexing manner or a frequency-division multiplexing manner.

Abstract: A transmission method and apparatus of a discovery signal and a communication system. The transmission method of a discovery signal includes: determining one or more transmission resources from resource pools according to a sidelink discovery signal needing to be transmitted; and transmitting the sidelink discovery signal by using the one or more transmission resources; wherein the resource pools are segmented in a frequency domain and/or a time domain and hence comprise multiple types. Hence, cases of waste of resources or of impossible carrying may be reduced as much as possible even if sizes of discovery information are different due to different scenarios.

Abstract: This application provides a method and apparatus for controlling traffic steering and a communications system. In an implementation of the method for controlling traffic steering, the method is applicable to an RAN node and comprises: traffic steering indication information is determined; and the traffic steering indication information is transmitted to UE, so that the UE steers corresponding traffic to a traffic steering target according to the traffic steering indication information. With the method, load balance between 3GPP RAN and WLAN at an RAN level may be ensured, and in comparison with an existing mechanism, user experiences and system performance are improved.

Abstract: A method for operating a first distributed unit (DU) includes participating in a link layer context transfer with a second DU, establishing a user data path for a mobile device, the user data path connecting the mobile device with a centralized unit (CU) including a radio control protocol entity communicating with the mobile device, and storing first user data for the mobile device received from the CU and second user data for the mobile device received from the second DU. The method includes establishing a connection with the mobile device, sending the first user data and the second user data to the mobile device, and adapting the link layer context to operate in the first DU for exchanging data between the CU and the mobile device, wherein adapting the link layer context includes associating an uppermost protocol layer of the first DU with a lowest protocol layer of the CU.

Abstract: A method for displaying a terminal charging status and a terminal. The method includes: displaying a charging status region on a terminal screen when it is detected that a terminal battery is being charged, with a halo enlarging or shrinking with a preset frequency existing at the edge of the charging status region; according to a ratio of the current electric quantity of the terminal battery to the electric quantity of the terminal battery being fully charged, displaying a filled region having the same ratio in the charging status region. The method for displaying a terminal charging status and the terminal can realize visually displaying a charging status and a charging progress of the terminal.

Abstract: A base station, includes: a transmitter, configured to transmit a first coexistent interference frequency set configured for UE to a target base station, when the UE is handed over from a source base station to the target base station; wherein coexistence interference on each frequency in the first coexistence interference frequency set is to be evaluated by the UE when the UE is in a cell of the source base station, and the evaluation results indicate that whether there exists coexistent interference on each frequency in the first coexistent interference frequency set.

Abstract: This application provides a method and apparatus for processing a buffer status report and a communication system, the method being applicable to user equipment (UE) and including: whether in an TTI where an allocated uplink resource for the TTI is capable of accommodating a ProSe BSR MAC CE containing a buffer status for at least one ProSe Destination and its corresponding MAC subheader is judged; if yes, whether there exist side-link data available for transmission in the TTI is judged; and if no, all triggered ProSe BSRs are cancelled. With embodiments of this disclosure, a problem that UE is unable to determine contents of a ProSe BSR MAC CE to be transmitted at a TTI when triggered ProSe BSRs can be transmitted is solved.