Abstract: A method and apparatus for session continuity using pre-registration tunneling procedure are disclosed. For session continuity, a tunnel is established between a multi-mode wireless transmit/receive unit (WTRU) and a core network of a target system via a source system while the WTRU is still connected with the source system. An access procedure is performed toward the target system using the tunnel. A handover is the performed from the source system to the target system once the access procedure is complete. The access procedure includes session initiation protocol (SIP) registration, authentication of the WTRU at the target system, and internet protocol (IP) configuration. The handover may be from a third generation partnership project (3GPP) system to a non-3GPP system, or vice versa.

Abstract: Provided is a communication device for measuring a usable bandwidth without delay in transmission of primary data. The relay device according to an embodiment of the present invention, when measuring a usable bandwidth in communication with another relay device, processes a user packet including a user data to be transmitted to the other relay device so as to be changed into a specific packet size while the user data is maintained as it is, and utilizes it as a measurement packet. Accordingly, even though it is a measurement packet for performing measurement of a bandwidth, since it includes user data, it may be treated in the same manner as a user packet thereby enabling an efficient use of a communication network in communication. Also, even though UDP is used, since a usable bandwidth can be measured, it is possible to measure a bandwidth even though streaming data is distributed while preventing any influences on the distribution.

Abstract: Provided is an anti-collision method and apparatus used during wireless power transmission with respect to a plurality of target devices. According to one general aspect, an anti-collision method in wireless power transmission may include: transmitting, from a source device to one or more target devices, an access standard instruction including an access standard that is used for identifying the target devices; transmitting, to the one or more target devices, a call parameter used to detect identifications (IDs) of the target devices, generated based on the access standard; and assigning, to the one or more target devices, control IDs based on response signals that the one or more target devices transmits in response to the call parameter.

Abstract: A method including receiving network graph information of a network, wherein the network graph information includes shared risk link group (SRLG) information; determining a maximum link-and-SRLG-disjoint flow value of the network based on the network graph information; selecting a value for a number of trap-free shortest link-and-SRLG-disjoint paths to find between a source node and a destination node based on the maximum link-and-SRLG-disjoint flow value; selecting a minimum remaining link-and-SRLG-disjoint flow value based on the value for the number of trap-free shortest link-and-SRLG-disjoint paths; and selecting a trap-free shortest link-and-SRLG-disjoint path in which a complementary part of the network supports at least the minimum remaining link-and-SRLG-disjoint-flow value.

Abstract: A communication system includes a communication device controlling packet forwarding, and a controller setting a first table entry used for packet forwarding according to a request from the communication device. The communication device determines whether to forward a received packet according to the first table entry or forward the received packet according to a second table entry set by the communication device based on a rule for identifying a received packet. The load of the controller for controlling paths can be reduced.

Abstract: A method and apparatus for radio link control during network congestion in a mobile wireless communication device connected to a radio network subsystem in a wireless cellular network. The mobile wireless communication device detects a pending uplink control message. The mobile wireless communication device determines that an uplink channel on which the pending uplink control message is to be sent has insufficient bandwidth for uplink transmission. After waiting a congestion delay time interval, the mobile wireless communication device sends the pending uplink control message on an uplink signaling channel instead of on the uplink channel. In some embodiments, the uplink channel is associated with a radio access bearer and the uplink signaling channel is associated with a signaling radio bearer.

Abstract: A method including receiving information corresponding to a network graph of a network; determining a maximum flow value of the network based on the network graph; selecting a value for a number of trap-free shortest link-disjoint paths to find between a source node and a destination node based on the maximum flow value; selecting a value for a minimum remaining flow value based on the value for the number of trap-free shortest link-disjoint paths; and selecting a trap-free shortest link-disjoint path in which a complementary part of the network supports at least the remaining minimum flow value.

Abstract: Interference that occurs during wireless communication may be managed through the use of beam and null steering techniques. A method, apparatus and medium of communication determine an interference direction of a non-associated access terminal generating an interfering signal. Transmitted and received signals are then transceived away from the interference direction.

Abstract: A method for transmitting a short signaling in a Media Access Control-e Packet Data Unit (MAC-e PDU) includes sending control information bits incorporated with padding bits of the MAC-e PDU considering the padding bits from a User Equipment (UE) to a Node B, and sending a scheduling signaling from a service Node B to the UE according to the control information bits. Scheduling request information is transmitted with the existing padding bits. If every Transmission Time Interval (TTI) has padding bits, the UE may send the scheduling request signaling to Node B in every TTI. Therefore, the reference is provided for the Node B, and no extra load is caused to the system.

Abstract: A physical channel communication method and apparatus for random access in a cellular communication system including a plurality of relay nodes and user equipments using the same system information is provided. The physical channel communication method for random access in a wireless communication system according to the present invention includes receiving, by at least two relay nodes connected to a base station, system information containing a Physical Random Access CHannel (PRACH) region allocation information for identifying user equipments attached to the relay nodes; receiving PRACHs for random accesses transmitted by the user equipments; and transmitting the PRACHs to the base station on relay node-specific resource regions according to the PRACH region allocation information.

Abstract: A method of discovering an identity provider instance according to this disclosure begins upon receipt from a service provider (or from a discovery service to which the service provider redirects the user) of a request for an IdP instance. Preferably, the request for an IdP instance is received as a Web services request following receipt at the service provider of an end user client request to access an application. In response to receiving the request, an IdP instance is selected, preferably using one or more criteria, such as user proximity, instance load, instance availability, the existence of a prior IdP binding, or the like. Following the selection, a response to the request is generated and returned to the requesting service provider. Preferably, the response is a redirect to the selected IdP instance.

Abstract: Disclosed are circuits, techniques and methods for implementing a process of selectively bypassing a duplexer in a transmission path. In a particular embodiment, a receiver and a transmitter are coupled to a shared antenna through a duplexer. The duplexer may be selectively bypassed under certain conditions while the receiver is disabled and/or powered off.

Abstract: The present invention relates to a method for configuring a retransmission protocol on the uplink between a network node and a relay node in a mobile communication system, the configuration being performed at a network node or at a relay node, and to the corresponding relay node apparatus and network node apparatus capable of configuring the retransmission protocol. In particular, the number of transmission processes is determined based on the position of time intervals available for the transmission and may be selected in order to control the round trip time of the retransmission protocol. Once the number of transmission processes has been configured, the transmission processes are mapped on the available time intervals in a predefined order and repetitively.

Abstract: The invention provides a system that implements an algorithm for integrated link adaptation and power control to achieve specified error rates and to improve an overall throughput for real-time applications in wireless packet networks. The system initially divides wireless terminals into groups according to their signal path gains. Afterwards, the system can periodically adapt transmissions (i.e., link adaptations) based on the required error rates, actual error statistics and average transmission power for each wireless terminal group. Furthermore, transmission power can be adjusted by an enhanced Kalman-filter method to ensure successful reception.

Abstract: Methods and apparatus that seek to increase the diversity seen in wireless communication systems by intelligently implementing a joint multi-dimensional permutation approach. In an exemplary embodiment, this is accomplished by combining the permutation of various transmitter antennas, various data streams (for example, in a MIMO configuration) and various constellation-bit mappings into a coherent multi-dimensional permutation scheme. Subsequent retransmissions in combination with an initial transmission are utilized to obtain substantial signal flattening at a receiver which increases the likelihood that retransmissions that follow detected errors will successfully convey the transmitted data to the receiver. Both open and closed-loop approaches are contemplated which take advantage of the multi-dimensional permutation schemes. In addition, embodiments utilized in the context of retransmission mechanisms such as HARQ are also contemplated.

Abstract: A method, system, and apparatus for managing spreading codes used in communication over a radio frequency air interface. When a radio access network (RAN) is to assign a spreading code to a mobile station in the coverage area, the RAN may determine which mobile station currently having an assigned traffic channel in the coverage area has a highest forward-link signal quality, and the RAN may select a spreading code based on the spreading code of that determined mobile station's assigned traffic channel. For instance, the RAN may select a spreading code that is quasi-orthogonal to the spreading code of the determined mobile station's assigned traffic channel.

Abstract: A mobile wireless system includes a first gateway (L-PGW), a second gateway (PGW), a first access point (HeNB) capable of establishing a communication path simultaneously with the first and second gateways, and a second access point (eNB) capable of establishing a communication path only with the PGW. When a mobile terminal connected to the HeNB and communicating with a communication destination node using a first path through the L-PGW switches a connection destination to the eNB, the HeNB establishes a second path through the HeNB and the PGW, while maintaining the first path. The HeNB transmits data, which has been transmitted to the HeNB along the first path, to the eNB along the second path, until the UE is connected to the eNB, and a third path to the communication destination node through the PGW is established. Accordingly, an interruption time of data reception involved in handover is shortened.

Abstract: A method, system and apparatus for communication in an Orthogonal Frequency Division Multiplexing (OFDM) communication system is provided. The method includes allocating a plurality of sequences to a plurality of sectors in the OFDMA communication system. The plurality of sequences are orthogonal to each other. The method further includes communicating one or more OFDM tiles between one or more MSs in one or more sectors of the plurality of sectors and one or more BSs of the one or more sectors. The one or more OFDM tiles include one or more sequences of the plurality of sequences allocated to the one or more sectors.

Abstract: Symmetrical and asymmetrical ad-hoc, wireless networks and a method for saving power in the same may include causing a first station to determine whether a second station has a master capability to buffer data traffic for the first station. A first station requests the second station to buffer the data traffic intended for the first station for a first predetermined period. The first station enters a first power save mode, and the second station buffers the data traffic for the first station for the first predetermined period. The first station exits the first power save mode after the first predetermined period and the second station sends the buffered data traffic to the first station. Both the first and second stations may have master capabilities, or only one of the first and second stations may have a master capability.

Abstract: An identity provider instance is discovered upon receipt from a service provider (or from a discovery service to which the service provider redirects the user) of a request for an IdP instance. Preferably, the request for an IdP instance is received as a Web services request following receipt at the service provider of an end user client request to access an application. In response to receiving the request, an IdP instance is selected, preferably using one or more criteria, such as user proximity, instance load, instance availability, the existence of a prior IdP binding, or the like. Following the selection, a response to the request is generated and returned to the requesting service provider. Preferably, the response is a redirect to the selected IdP instance.