Abstract: A communication apparatus and a communication method capable of suppressing an increase of bits used for a request to send a reference signal and flexibly setting a resource used for sending a reference signal. In a base station, a transmission processing unit transmits, in one of a plurality of formats, control information containing a request to send a sounding reference signal (A-SRS), and a reception processing unit receives the transmitted A-SRS using the resource specified by the format of the transmitted control information. Then, the plurality of formats is associated with each different SRS resource by a setting unit.

Abstract: A method of adjusting a carrier sense threshold to avoid hidden nodes during wireless broadcast. The method includes monitoring a load of the peer-to-peer network before broadcasting a message from a node. The method also includes adjusting a carrier sense threshold (CST) based on the load of the peer-to-peer network to avoid broadcast message collisions due to one or more hidden nodes.

Abstract: A method of multi-set RRC signaling for ap-SRS configuration is provided to enhance ap-SRS flexibility. An eNB transmits a plurality of sets of UE-specific SRS parameters to a UE via upper layer messaging in a multi-carrier wireless communication system. The eNB also determines triggering information of a selected set of UE-specific SRS parameters and an indicated carrier for the UE. The eNB then transmits an uplink or downlink grant over a primary carrier, the grant comprises triggering information for the UE to send an ap-SRS over the indicated carrier using the selected set of UE-specific SRS parameters. In one embodiment of joint signaling, the plurality of sets of UE-specific SRS parameters are signaled together in a single RRC transmission. In another embodiment of separate signaling, each set of UE-specific SRS parameters is signaled independently.

Abstract: Methods and apparatus for time synchronization and measurement of power distribution systems. A method includes receiving a synchronized wireless communication signal, synchronizing to the synchronized wireless communication signal to produce synchronized time, performing one or more power distribution measurements based on the synchronized time to produce synchronized power distribution measurements, and transmitting the synchronized power distribution measurements to a power control center. An apparatus includes a receiver configured to receive a synchronized wireless communication signal and to synchronize to the synchronized wireless communication signal to produce synchronized time, a measurement module configured to perform one or more power distribution measurements based on the synchronized time to produce synchronized power distribution measurements, and a transmitter configured to transmit the synchronized power distribution measurements to a power control center.

Abstract: Devices and methods are provided for expedited recovery from radio link failure or the like. In one embodiment, the method involves collecting at least one optional system information block (SIB) during connected mode, wherein the at least one optional SIB comprising neighbor information. In another embodiment, the method involves storing dedicated information provided by a base station through a dedicated channel. The method generally involves using the neighbor information and/or dedicated information for cell selection, in response to the radio link failure.

Abstract: Presented is a system and method for distributing a network application across a plurality of geographically dispersed network sites. The system comprises a plurality of network sites connected by a shared network and interconnected by a dedicated non-blocking communication network. The system can use different interconnecting network topologies based on the number of sites to be interconnected. The method balances the network application load and resources across the interconnected network sites based on a distribution policy implemented without burdening the shared network. The method provides redundancy capabilities by detecting the loss of a network site and redistributing the network application load to the remaining network sites.

Abstract: Disclosed are a wireless communication apparatus and frequency hopping method which minimize the change in the instantaneous power distribution characteristics of the time waveform of transmission signals when a plurality of channels are multiplexed by frequency division. At a terminal (200), a mapping unit (212) maps the PUCCH to frequency resources of a first slot, maps the PUSCH to frequency resources, among the frequency resources of the first slot, separated exactly by predetermined frequency spacing (B) from the frequency resources to which the PUCCH is mapped, and cyclically shifts the frequencies so as to map the PUCCH and PUSCH to frequency resources, within an IDFT or IFFT bandwidth, of a second slot while maintaining the predetermined frequency spacing (B), thereby allowing frequency hopping of the PUCCH and PUSCH between the first slot and the second slot.

Abstract: A wireless transceiver includes a transmit path configured to generate a radio frequency (RF) transmit signal for transmission via an antenna. A receive path is configured to receive an RF receive signal via the antenna. A circulator-based quadrature duplexer includes an in-phase circulator and a quadrature-phase circulator configured to couple the transmit signal from the transmit path to the antenna while generating a residual transmit signal on the receive path, and to couple the receive signal from the antenna to the receive path. The circulator-based quadrature duplexer promotes cancellation of the residual transmit signal on the receive path.

Abstract: Systems and methods of enhanced real-time communications between WiFi devices. In one embodiment of the present invention a method for enhanced payload protection in a WiFi system includes transmitting multiple copies of data packets in successive frame body transmissions. In another embodiment, a method for enhanced communications over a WiFi link includes examining a unit ID packet to determine a destination of a data payload when errors are detected in IP and/or MAC headers. If a destination is determined, the packet is corrected and forwarded to the device based on the unit ID determination. In another embodiment, a method for enhanced real-time communications in a WiFi network includes establishing a communications frame that includes an active timeslot, preferably based on U-APSD, for a WiFi device to use for transmission of successive audio data packets transmitted between the WiFi handset and AP.

Abstract: A method and apparatus are described for performing a Proximity-based Service (ProSe) by a ProSe-enabled user equipment (UE) in a cellular communication system. A connection is established with a network via a public safety band. A scheduling request (SR) signal is transmitted to the network via the public safety band. A first resource allocation is received from the network. The ProSe is performed using the first resource allocation. If a condition including a lack of channel resources is not satisfied, the SR signal carries a first identifier used for requesting resource of the public safety band. If the condition including the lack of channel resources is satisfied, the SR signal carries a second identifier used for requesting resource of a non-public safety band.

Abstract: Disclosed is an access control method, for use in implementing improved access control. The method comprises: during a random access process, on the basis of a current load of a random access network (RAN) and a core network (CN) and of terminal or service information reported by a user equipment (UE), the RAN judging whether or not access to the RAN and to the CN is allowed; when access is denied by at least one network between the RAN and the CN, the RAN transmitting to the UE an instruction message having attached therein a backoff time corresponding to the access denying network. Also disclosed is a device for implementing the method.

Abstract: The invention relates to transferring of a time of day value between network elements of a data transfer network. It has been surprisingly detected that the phase reference signals available to various network elements can be utilized in the synchronization of time of day values between these network elements. In the solution according to the invention, a first network element sends to a second network element a difference variable (401, 402, 403) that indicates how much the timing phase of the time of day value maintained in the first network element differs from the timing phase of the phase reference signal available to the first network element. In the second network element that receives the message, an estimate of the time of day value is formed (404, 405) based on the difference variable and the timing phase of the phase reference signal available to the second network element.

Abstract: Methods of telecommunicating and systems configured to perform the methods are disclosed. In some embodiments, the methods include establishing a primary communications link, determining that a backup communications link is to be established, and determining a plurality of candidate network nodes. The method also includes selecting one of the candidate network nodes with which to establish the backup communications link, where the selected candidate network node is selected based at least in part on the selected candidate network node being in a foreign network, establishing the backup communications link with a selected candidate network node, and communicating using the backup communications link.

Abstract: Apparatus and methods are provided to enable a ratcheting of uplink transmit power at an access terminal in a wireless communication network, such that the transmit power is maintained between an upper threshold and a lower threshold. Here, the decision whether to ratchet the power may be based on one or both of the open-loop transmit power and/or the closed-loop transmit power. Moreover, the decision whether to ratchet the transmit power may be based on the power per carrier in a multi-carrier wireless communication network. Other aspects, embodiments, and features are also claimed and described.

Abstract: A communication apparatus includes a communication interface, a processor, and a memory. The communication interface uses a first interface standard and a second interface standard. The memory stores computer-readable instructions therein. The processor executes the computer-readable instructions, which instruct the communication apparatus to perform various processes in accordance therewith. The computer-readable instructions instruct the communication apparatus to transmit a response packet to an external device in response to receiving a request packet from the external device when a condition is satisfied. The response packet complies with a specific protocol. The condition is satisfied when the request packet is received using the first interface standard and complies with the specific protocol. The condition is not satisfied when the request packet is received using the second interface standard and complies with the specific protocol.

Abstract: An apparatus operable in a communication system is described. The apparatus includes means for obtaining a wireless communication device thermal condition input. The apparatus also includes means for adapting a network search algorithm. Adapting a network search algorithm includes adapting a network search algorithm based on the wireless communication device thermal condition input.

Abstract: A method and system for service protection based on the Dual Node Interconnection (DNI) protection structure in the transport network are provided. When creating a DNI protection group, a plurality of services are configured in one direction, wherein one is a working service, and the others are protection services; the multiple services have the same add node and drop node, but not exactly the same passed interconnection nodes; on each interconnection node of the add ring, two services in the DNI protection group through the local node to the drop ring are adapted as two services in a 1+1 protection group; on the drop node, services in the DNI protection group are adapted as two services in a 1+1 protection group transmitted from two directions of the drop ring; when a fault occurs, said interconnection node and drop node execute switching according to the 1+1 protection protocol.

Abstract: A system for providing and managing IP telephone calls establishes separate and distinct call legs between IP-capable appliances and routers and between routers, and creates calls, changes calls, and manages telephony functions by joining and disjoining calls legs. In some instances one or more call legs disjoined from an active call are maintained as established to be joined later to other call legs to create other active calls. By managing EP calls as separate and distinct legs functions of intelligent, connection-oriented telephony networks may be simulated in IP telephony systems. The management is provided by software running on processors coupled to routers in the IP network.

Abstract: A scheduling executing section calculates a predicted value of a transmission gain at a time when controlling transmission directivity in a plurality of antennas based on a known signal to be received in a frequency band of a use downlink radio resource and performing downlink communication with a communication terminal, and determines a communication terminal to which the use downlink radio resource is allocated based on the predicted value.

Abstract: A messaging method is implemented by a system in a mobile network in which there are mobile devices including devices A, B, C, D, and E. An originating device sends a message addressed to multiple terminating devices. The system receives the messages and correlates them and routes them to the terminating devices. The system correlates the messages by grouping them according to originating device and sending time frame. The system allocates a global title record address from a pool for the session. The system forwards the messages with an MT-FSM, in which the originating device information is included in the message body, and the recipient address is that of the specific terminating device. The system transmits a confirmation message to the originating device.