Abstract: The disclosure is directed to a network link topology adaptation method for an IAB node and an IAB node using the same method. In an aspect, the disclosure is directed to a network link topology adaptation method used by a transmitting IAB node, and the method would include not limited to: receiving a topology adaptation configuration which comprises a blockage-related parameter from an upstream IAB node; determining whether a blockage condition of a radio link has occurred based on the blockage-related parameter; and transmitting a request to trigger a switch from a first network link topology to a second network link topology.

Abstract: In an aspect, the disclosure is directed to a method and device for generating, by a higher L2 sublayer before receiving an UL grant, PDUs of the higher L2 sublayer, wherein each PDU of the higher L2 sublayer includes one or more SDUs of the higher L2 sublayer; generating, by a lowest L2 sublayer before receiving the UL grant, subheaders for each of SDUs of the lowest L2 sublayer, wherein each SDU of the lowest L2 sublayer is equivalent to each PDU of the higher L2 sublayer; performing, by the lowest L2 sublayer, a LCP procedure for the SDUs in response to receiving the UL grant; and generating, by the lowest L2 sublayer based on a result of the LCP procedure, a PDU of the lowest L2 sublayer by multiplexing a portion of the SDUs of the lowest L2 sublayer and the subheaders of the portion of the SDUs.

Abstract: A method for receiving a plurality of data packets is disclosed. The method includes: receiving MAC PDUs from a source UE of the wireless network through a relay UE, a base station and directly from the source UE, wherein the MAC PDUs are composed of RLC PDUs and RLC PDU segments; demultiplexing the MAC PDUs to retrieve the RLC PDUs and the RLC PDU segments based on a header field of each MAC PDU; reordering the RLC PDUs and the RLC PDU segments and performing a duplicate detection of the RLC PDUs and the RLC PDU segments according to TSNs, wherein each TSN is included in a header field of each RLC PDU and each RLC PDU segment; and reassembling the RLC PDUs and the RLC PDU segments into RLC SDUs using information included in the header field of each RLC PDU and each RLC PDU segment.

Abstract: The disclosure provides a method, a UE, and a base station for mapping data packets. In an aspect, the method may include not limited to: receiving through a first DRB, a first plurality of DL data packets; determining, from a first plurality of protocol headers which correspond to the first plurality of DL data packets, a first indicator which indicates that the first plurality of DL data packets belong to a first QoS flow which has not been mapped to the first DRB; and mapping the first QoS flow to the first DRB in response to the first plurality of DL data packets belonging to the first QoS flow which has not been mapped to the first DRB.

Abstract: A method for transmitting a plurality of data packets is disclosed. The method includes: receiving one or more first medium access control (MAC) protocol data units (PDUs) which include a plurality of radio link control (RLC) PDUs intended for a destination UE from a source UE; demultiplexing the first MAC PDUs to retrieve the RLC PDUs based on a header field of each first MAC PDU; generating a plurality of RLC PDU segments from one or more of the RLC PDUs or a plurality of RRLC (Relay RLC) PDUs from all of the RLC PDUs according to one or more MAC PDU sizes, wherein the RRLC is a protocol layer between the MAC layer and the RLC layer; multiplexing the RLC PDUs and the RLC PDU segments or the RRLC PDUs into one or more second MAC PDUs; and transmitting the second MAC PDUs to the destination UE.

Abstract: According to one exemplary embodiment, the method includes configuring, in a system information block, a parameter of the access control mechanism which indicates a first access class of the multiple access classes is barred; transmitting a first paging message which includes an indicator indicating the parameter of the access control mechanism has been modified; not allowing any random access associated with the first access class in response to the first access class being barred; configuring, in the system information block, the parameter of the access control mechanism, wherein the parameter of the access control mechanism indicates the first access class of the multiple access classes is no longer barred; transmitting a second paging message which comprises the indicator indicating that the parameter of the access control mechanism is modified; and allowing a random access associated with the first access class after the first access class no longer being barred.

Abstract: In an aspect, the disclosure is directed to a method and device for generating, by a higher L2 sublayer before receiving an UL grant, PDUs of the higher L2 sublayer, wherein each PDU of the higher L2 sublayer includes one or more SDUs of the higher L2 sublayer; generating, by a lowest L2 sublayer before receiving the UL grant, subheaders for each of SDUs of the lowest L2 sublayer, wherein each SDU of the lowest L2 sublayer is equivalent to each PDU of the higher L2 sublayer; performing, by the lowest L2 sublayer, a LCP procedure for the SDUs in response to receiving the UL grant; and generating, by the lowest L2 sublayer based on a result of the LCP procedure, a PDU of the lowest L2 sublayer by multiplexing a portion of the SDUs of the lowest L2 sublayer and the subheaders of the portion of the SDUs.

Abstract: A traffic dispatch method of a first eNB comprises the following steps: generating an estimation result according to measurement reports of a plurality of user equipments (UEs), wherein parts of the measurement reports are provided by a second eNB connected to the first eNB through a backhaul connection and parts of the measurement reports are provided by parts of the UEs, wherein coverage area of the second eNB is encompassed by the first eNB; receiving a status report from the second eNB; and making a traffic split decision according to the estimation result and the status report of the second eNB to dispatch traffic to the second eNB through the backhaul connection.

Abstract: Accordingly, the disclosure provides a method and a user equipment for notifying parameter changes of an access control mechanism. In one of the exemplary embodiments, the method would include not limited to: receiving a first paging message which includes an indicator indicating whether a parameter of an access control mechanism is modified, wherein the access control mechanism bars at least one access class of the multiple access classes; acquiring the parameter of the access control mechanism from a system information block to determine whether the specific access class is barred in response to receiving the first paging message which includes the indicator indicating the parameter of the access control mechanism has been modified; not performing a random access in response to determining that the specific access class has been barred.

Abstract: A method for transmitting a plurality of data packets is disclosed. The method includes: receiving one or more first medium access control (MAC) protocol data units (PDUs) which include a plurality of radio link control (RLC) PDUs intended for a destination UE from a source UE; demultiplexing the first MAC PDUs to retrieve the RLC PDUs based on a header field of each first MAC PDU; generating a plurality of RLC PDU segments from one or more of the RLC PDUs or a plurality of RRLC (Relay RLC) PDUs from all of the RLC PDUs according to one or more MAC PDU sizes, wherein the RRLC is a protocol layer between the MAC layer and the RLC layer; multiplexing the RLC PDUs and the RLC PDU segments or the RRLC PDUs into one or more second MAC PDUs; and transmitting the second MAC PDUs to the destination UE.

Abstract: The disclosure proposes a method of forming an N-hop synchronous network for D2D communication and devices using the same. In one of the exemplary embodiments, the method may include detecting one or more synchronization signals which are transmitted from one or more nearby synchronization sources; selecting, from the one or more synchronization signals, a first SS transmitted from a neighboring synchronization source having a hop count=i, wherein i is the smallest hop count detected from the one or more neighboring synchronization sources; and if there are more than one neighboring synchronization sources with hop count=i, the first SS is selected as having a maximum RSRP detected by the UE; and if the RSRP of the first SS does not exceeds a predefined threshold: operating as a synchronization source; and transmitting a SS based on the first SS.

Abstract: A traffic dispatch method of a first eNB comprises the following steps: generating an estimation result according to measurement reports of a plurality of user equipments (UEs), wherein parts of the measurement reports are provided by a second eNB connected to the first eNB through a backhaul connection and parts of the measurement reports are provided by parts of the UEs, wherein coverage area of the second eNB is encompassed by the first eNB; receiving a status report from the second eNB; and making a traffic split decision according to the estimation result and the status report of the second eNB to dispatch traffic to the second eNB through the backhaul connection.

Abstract: A method for switching communication connection modes, a communication system, a base station, a transmitter and a receiver are provided. The method includes the following steps. Firstly, when a base station or a core network entity determines that a communication mode between a transmitter and a receiver should be switched from a cellular communication mode to a device-to-device communication mode, the base station sends a control message to the transmitter. Next, the transmitter stops transmitting at least one first packet to the base station in response to the control message. Afterwards, the receiver receives at least one transmission-unfinished packet and a transmission-unfinished packet status related to the at least one transmission-unfinished packet forwarded by the base station.

Abstract: The present disclosure proposes a data transmission method through multimedia broadcast multicast services (MBMS). Specifically, the present disclosure proposes using a cell broadcast service to perform data transmission, and the proposed functions would include receiving an information of a service data, allocating a data channel resource based on the information of the service data to generate an allocation information for the data channel, allocating a control channel resource based on the information of the service data to generate an allocation information for the control channel, and transmitting the allocation information for the control channel to a target device.

Abstract: The disclosure proposes a method of forming an N-hop synchronous network for D2D communication and devices using the same. In one of the exemplary embodiments, the method may include detecting one or more synchronization signals which are transmitted from one or more nearby synchronization sources; selecting, from the one or more synchronization signals, a first SS transmitted from a neighboring synchronization source having a hop count=i, wherein i is the smallest hop count detected from the one or more neighboring synchronization sources; and if there are more than one neighboring synchronization sources with hop count=i, the first SS is selected as having a maximum RSRP detected by the UE; and if the RSRP of the first SS does not exceeds a predefined threshold: operating as a synchronization source; and transmitting a SS based on the first SS.

Abstract: A method for performing hybrid automatic repeat request (HARQ), a base station (BS), and a mobile device are provided. In the method, a wireless resource is allocated by the BS, and whether to perform a device-to-device (D2D) communication is determined. When the D2D communication is performed, a first resource allocation message is transmitted by the BS to a first mobile device and a second mobile device, and the first mobile device, working as a transmitter, transmits a data packet to the second mobile device, working as a receiver, according to the first resource allocation message. A HARQ feedback packet is received by the BS from the second mobile device to determine whether the data packet is successfully transmitted. When the HARQ feedback packet is a negative acknowledgement (NACK), the BS retains the original wireless resource or transmits a second resource allocation message to the first and the second mobile devices.

Abstract: A method for a base station to provide a multicast and/or broadcast service (MBS) in a communication system. The method includes: transmitting system information on a system control information block (SCIB); transmitting MBS control information that is changed with relatively high frequency on a secondary multicast/broadcast control information block (S-MCIB); and transmitting MBS content data based on the MBS control information.

Abstract: A method and an apparatus for notifying activations of extended access barring (EAB) and updates of EAB information in the field of Long Term Evolution (LTE) wireless communication systems have been proposed. In accordance with the present disclosure, the eNB notifies MTC devices of EAB changes from a paging message through the paging channel (PCH). The network could use either a single bit EAB status indicator to notify whether the EAB has been enabled or disabled or use multiple bits EAB indicator to represent different EAB parameter changes in addition to whether the EAB has been enabled or disabled. Based on the present disclosure, the network could reduce the paging overhead by require the MTC device to acquire the EAB-SIB only when it needs the EAB information.

Abstract: A method and an apparatus for notifying activations of extended access barring (EAB) and updates of EAB information in the field of Long Term Evolution (LTE) wireless communication systems have been proposed. In accordance with the present disclosure, the eNB notifies MTC devices of EAB changes from a paging message through the paging channel (PCH). The network could use either a single bit EAB status indicator to notify whether the EAB has been enabled or disabled or use multiple bits EAB indicator to represent different EAB parameter changes in addition to whether the EAB has been enabled or disabled. Based on the present disclosure, the network could reduce the paging overhead by require the MTC device to acquire the EAB-SIB only when it needs the EAB information.

Abstract: A method for switching communication connection modes, a communication system, a base station, a transmitter and a receiver are provided. The method includes the following steps. Firstly, when a base station or a core network entity determines that a communication mode between a transmitter and a receiver should be switched from a cellular communication mode to a device-to-device communication mode, the base station sends a control message to the transmitter. Next, the transmitter stops transmitting at least one first packet to the base station in response to the control message. Afterwards, the receiver receives at least one transmission-unfinished packet and a transmission-unfinished packet status related to the at least one transmission-unfinished packet forwarded by the base station.