Embodiments herein relate to a method in a relay node (10) for acquiring information about a type of a radio network connection between a donor radio base station (12) and a radio base station (14). The relay node (10) and the donor radio base station (12) are comprised in a radio communications network and the donor radio base station (12) is serving the relay node (10). The relay node (10) receives a message from the donor radio base station (12), which message is indicating a type of radio network application protocol, which type is related to a type of the radio network connection between the donor radio base station (12) and the radio base station (14). The relay node (10) determines the type of the radio network connection based on the type of radio network application protocol indicated in the message. The relay node (10) also stores the type of radio network connection in relation to the radio base station (14) for selecting the type of radio network connection when later communicating with the radio base station (14).

An object of the invention is to provide a mobile communication system capable of changing network parameters based on connection information about connection devices connected to a mobile communication apparatus. A mobile communication system according to the present invention includes: a mobile communication apparatus (10) connected to connection devices (21) to (23); and a network operator device (30) disposed in a mobile communication network (40) managed by a mobile communication carrier. The mobile communication apparatus (10) detects connection information about the connection devices (21) to (23) and the network operator device (30) changes a network parameter or a network process associated with the mobile communication apparatus (10) based on network assist information determined according to the connection information about the connection devices (21) to (23) that is detected by the mobile communication apparatus (10).

When transmitting an R-APS (NR) frame, a control frame processing unit sets a priority setting value arbitrarily set by a user as a value of a node ID region. A ring control unit compares priority based on a value of the node ID region of the R-APS (NR) frame transmitted from its own device and a value of the node ID region of the R-APS (NR) frame transmitted from a different device, and the ring control unit determines whether a ring port is maintained in a block state or changed from the block state to an open state based on a result of the comparison.

When transmitting an R-APS (NR) frame, a control frame processing unit sets a priority setting value arbitrarily set by a user as a value of a node ID region. A ring control unit compares priority based on a value of the node ID region of the R-APS (NR) frame transmitted from its own device and a value of the node ID region of the R-APS (NR) frame transmitted from a different device, and the ring control unit determines whether a ring port is maintained in a block state or changed from the block state to an open state based on a result of the comparison.

In one embodiment, a device in a network sets a timer interval based in part on a distance between the device and a backbone of the network. The device receives a unicast communication destined for a remote destination that was sent via broadcast. The device determines a count of receipt acknowledgements of the communication sent by other devices in the network. At the end of the timer interval, the device sends a receipt acknowledgement of the communication via broadcast, in response to the count of receipt acknowledgements sent by other devices in the network being below a threshold amount.

In one embodiment, a device in a network sets a timer interval based in part on a distance between the device and a backbone of the network. The device receives a unicast communication destined for a remote destination that was sent via broadcast. The device determines a count of receipt acknowledgements of the communication sent by other devices in the network. At the end of the timer interval, the device sends a receipt acknowledgement of the communication via broadcast, in response to the count of receipt acknowledgements sent by other devices in the network being below a threshold amount.

Disclosed herein are a Layered Division Multiplexing (LDM)-based broadcast relay apparatus and method. The LDM-based broadcast relay apparatus includes a first layer symbol generation unit for outputting a first layer broadcast signal based on a received Layered Division Multiplexed (LDM) broadcast signal, a data buffer unit for storing the received LDM broadcast signal for a delay time before the first layer broadcast signal is output, and a second layer symbol generation unit for outputting a second layer broadcast signal by eliminating the first layer broadcast signal from the stored broadcast signal.

Systems and methods are disclosed for a 3G gateway. In one embodiment, a system is disclosed, comprising a gateway situated between a 3G radio access network (RAN) and a core network, the gateway providing resource management for a nodeB, and providing routing and node management for another base station, wherein the base station may be configured to provide, as a virtual RNC, radio resource control, power control, ciphering, and multiplexing of multiple users onto a transmission path for a first mobile device attached to the nodeB; the gateway may be configured to relay traffic for a second mobile device attached to the base station; and the gateway may be configured to relay traffic to the core network from both the nodeB and the base station via an IuCS interface and an IuPS interface.

Systems and methods are disclosed for a 3G gateway. In one embodiment, a system is disclosed, comprising a gateway situated between a 3G radio access network (RAN) and a core network, the gateway providing resource management for a nodeB, and providing routing and node management for another base station, wherein the base station may be configured to provide, as a virtual RNC, radio resource control, power control, ciphering, and multiplexing of multiple users onto a transmission path for a first mobile device attached to the nodeB; the gateway may be configured to relay traffic for a second mobile device attached to the base station; and the gateway may be configured to relay traffic to the core network from both the nodeB and the base station via an IuCS interface and an IuPS interface.

A communication mode switching method and device. The method comprises: receiving a sending request; detecting whether the radio-frequency signal strength of a downlink channel meets a first threshold; when the radio-frequency signal strength is greater than or equal to the first threshold, determining that a relay station is in a working state, and keeping a relaying mode to finish the sending request; when the radio-frequency signal strength is less than the first threshold, determining that the relay station is in an abnormal state, and switching to an offline mode to finish the sending request, the offline mode specifically being to perform sending after regulating the sending frequency to be the receiving frequency of the downlink channel. It can be seen that, whether the relay station is in the abnormal state is determined by detecting whether the signal strength of the downlink channel meets the preset threshold, and sequentially, the working mode is switched between the relaying mode and the offline mode in a targeted manner, so that when the relay station is in the abnormal state, the receiving frequency of the downlink channel is used as the sending frequency for sending signals, so as to ensure that other mobile stations are capable of receiving the sent signals, and the rate of call loss is lowered.