Abstract: Methods and systems for priority access to control channels are provided. A mobile stations is assigned a user priority value. The mobile station selects a retry algorithm from a plurality of retry algorithms based on the assigned user priority value. Alternatively, the assigned user priority value can be used as a seed value for a single retry algorithm. Mobile stations with higher priority values will attempt to access the control channel within shorter time periods and more frequently than those with lower priority values.

Abstract: A method for IP [=Internet Protocol] communication to/from a mobile terminal via a network element in a mobile network. The mobile terminal uses an in-band trigger for establishing an IP connection. The network element uses an out-band trigger (3-8) for initiating IP connection establishment. The mobile terminal responding to the out-band trigger by using an in-band trigger for establishing the IP connection (3-10). After the data transfer (3-12), the mobile terminal and the network element maintain the IP connection for a predetermined time after the latest transaction (3-14).

Abstract: Representative embodiments are directed to distributed sensor systems from which measurement data is extracted using mobile devices. Representative embodiments record access attempts by the mobile devices and calculate the probabilities of future access by a mobile device to sensor devices using the recorded information. Collection points are selected in response to the probabilities of future access. Additionally, memory management and data prioritization may occur that is at least partially dependent upon the probabilities of future access.

Abstract: A system and method for establishing and maintaining an “always-on” data connection to a wireless network through the use of a back off timer and a service check timer is disclosed. The back off timer is initialized to a determined value when a connection is not established. When the timer expires, a connection attempt is made. As further connection attempts are made, the back off timer is set to ever-increasing values. When the data connection is established, the service check timer is initialized. The data connection status is determined at the expiry of the service check timer. When, at the expiry of the service check timer, the data connection is determined to be lost, the connection method is employed.

Abstract: A system is provided for managing timely delivery of electronic messages, such as short message service (SMS) messages sent by the short message peer to peer (SMPP) protocol. In particular, the system determines an expected delay for the delivery of electronic messages, so that a sender can avoid sending messages when they will take an excessive amount of time to deliver. In one embodiment, a sender of electronic messages, such as a news service provider, sends a session initiation protocol (SIP) “subscribe” message to a delay manager. The delay manager determines when the expected delay of message delivery at a bulk message gateway falls below a threshold delay. When the expected delay falls below the threshold, the delay manager informs the sender, and the sender may create and send an electronic message.

Abstract: A method for controlling transmission power of a physical random access channel in a mobile communication terminal. The mobile communication terminal sets initial transmission power according to received signal code power when a preamble of the physical random access channel is transmitted to a mobile communication network. A wireless channel environment is identified on the basis of a value of the received signal code power when the preamble must be retransmitted. According to the identified wireless channel environment, transmission power used in a previous preamble is variably increased and retransmission power is set.

Abstract: Disclosed is a method for quickly and conveniently establishing a connection between a master terminal and a slave device communicating with each other using Bluetooth. The slave device implements a special direct connection mode in which the slave device can be directly connected to the master terminal. When a user operates the slave device, the direct connection mode can be selected. The slave device notifies the master terminal of the direct connection mode. The master terminal establishes the direct connection with the slave device through paging without a slave address selection process. Since the direct connection with a target slave can be established without an address selection process, a time required for establishing a connection between the master and the slave can be significantly shortened, and also, the number of process steps can be reduced.

Abstract: A system and method communicates commands from a command originator to receiving devices, yet the receiving devices do not confirm receipt of the command. The most current command (e.g. the one with the highest sequence number) is rebroadcast by the command originator and the receiving devices, tending to be more frequent upon detection of an event indicating that the most current command was not received by at least one other device, and less frequently upon detection of an event indicating that the most current command was provided with sufficient duplication that if another device could receive it, the device likely did receive it, subject to a maximum and minimum rate.

Abstract: A node may include a receiver configured to receive signals transmitted from a gateway and a logic device coupled to the receiver. The node may also include a memory configured to store label information identifying a data packet stored in the node. The logic device may be configured to receive a message from the gateway, where the message includes label information, and access the memory to identify a data packet based on the label information included in the message. The node may also include a transmitter configured to transmit the data packet to the gateway over a channel shared with a number of other nodes.

Abstract: A system and method for establishing and maintaining an “always-on” data connection to a wireless network through the use of a back off timer and a service check timer is disclosed. The back off timer is initialized to a determined value when a connection is not established. When the timer expires, a connection attempt is made. As further connection attempts are made, the back off timer is set to ever-increasing values. When the data connection is established, the service check timer is initialized. The data connection status is determined at the expiry of the service check timer. When, at the expiry of the service check timer, the data connection is determined to be lost, the connection method is employed.

Abstract: A method of controlling power in a Base Station (BS) of a cellular system using wired Relay Stations (RSs) includes the RSs and the BS individually performing scheduling of packets to be transmitted to Mobile Stations (MSs) in respective areas of coverage, the BS increasing a difference between a sum of signals to be transmitted and a sum of interference signals according to a scheduling result, guaranteeing a minimum amount of data to be received by each MS, and calculating a power allocation solution of each MS, which satisfies a condition that the power allocation solution is in a range of allocatable power, which was pre-set by each of the RSs and the BS, and the RSs and the BS performing sub-channel allocation and power allocation according to the power allocation solution satisfying the condition.

Abstract: A communication terminal apparatus that exhibits a shorter time period required until a start of communication and causes the throughput in the wireless communication system to be less reduced. In this apparatus, when the number, N, of retransmissions notified by a response determining part (107) is zero, a subchannel-to-be-used selecting part (108) selects a subchannel, among others, which exhibits the highest order one of the reception qualities of the subchannels notified by a reception quality determining part (106), and then notifies the selected subchannel to a subchannel allocating part (113).

Abstract: A communication system is provided for communication between network nodes and multiple communication controllers. The communication method provides for request timeslot management, assigning request timeslots to individual nodes. In the network, when an individual node has data to transmit, the node transmits a request signal to a communication controller over an assigned timeslot. For a first node in the network area of a first controller communicating with a second node in the network area of a second communication controller, data is relayed between the first and second communication controllers to enable communication between the first and second nodes. Acknowledgement back that communication is successful is made by a node to a controller indicating a grant was successfully received by the node.

Abstract: A push-to-talk communication system is described in which a decision unit (chair) and/or a queue are provided for allocating the right to talk during a push-to-talk communication, and corresponding control messages, request messages and information messages are transmitted.

Abstract: A method and apparatus are provided for a set of procedures that a push-to-talk (PTT) server can use to control multiple simultaneous media streams within a talk group. The present invention provides floor control messages and protocols for identifying, transmitting, and distributing the simultaneous media streams. The invention may be used with any real-time protocol (RTP) payload format as long as the encoding allows a receiver of the packets means to distinguish between the transmitting clients. Although the present invention provides server-based control of multiple transmissions, end-point-based transmission control procedures are supported.

Abstract: A processor-implemented method of operation for managing a push-to-talk (PTT) session involving a plurality of participants includes applying a first floor control algorithm at a PTT server. The first floor control algorithm being selected from a plurality of algorithms that arbitrate among talk requests received from the participants. The method further includes changing, during the PTT session, from the first floor control algorithm to a second floor control algorithm at the PPT server. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: In one illustrative method, a periodic location update timer value is broadcasted by a wireless communication network and received and stored in memory of a mobile station. A request for data service is transmitted by the mobile station to a wireless communication network, and the request is reattempted at least one time in response to identifying a rejection of the request. If the request for the data service is accepted in response to the request, the mobile station operates in the wireless communication network using the data service. On the other hand, if the request for the data service is not accepted, the mobile station is set in a data service deregistered state. A timer is initialized with an initial value that is less than the periodic location update timer value and started. In response to an expiration of the timer, the mobile station repeats the transmission of the request for the data service and any reattempts in response to any rejections of the request.

Abstract: An embodiment generally relates to a method of maximizing network efficiency. The method includes determining a state of a connect attempt from a network and re-transmitting a connect attempt response message to the network in response to the network's connect attempt being in a pending state after an attempt to setup a connection to the network fails.

Abstract: A radio access network dynamically compiles history data regarding mobile wireless devices that tend to fail successful ranging, e.g., establishment of Layer 1 communication with a radio access node or base station. The history data is obtained from messages sent from the mobile device to the network which contain a count indicating the number of times the device has failed a ranging attempt. If the history (or count) data indicates that a wireless device has experienced ranging failures exceeding a threshold number of failures, the base station responsively blocks the device from attempting any additional ranging for a period of time. The period of time can be short-term period of time or a long term period of time. The methods avoid excessive use of air interface resources by excluding wireless devices which are unable to successfully range. That is, “bad” or “problem” wireless devices are excluded from access to the network.

Abstract: A method and apparatus for provisioning a physical link to a service provider is disclosed whereby physical link information in a carrier network is store, in one embodiment, in a database within the carrier network or, in another embodiment, in a database shared by a carrier and a service provider. In response to a request from the service provider for the use of the physical link, physical link information and network management information associated is retrieved from that database. In one embodiment, this information is sent directly from the carrier via in-band signaling. In another embodiment, the information is retrieved from the shared database and is transmitted via out-of-band signaling. In accordance with yet another embodiment, messages exchanged between service providers and carriers comprise digital certificates that are used to verify the identity of the providers and carriers.

Abstract: Intra-cell upstream data forwarding is utilized in a wireless network such as a wireless local area network. A network forwarding path is determined based on the signal strength of an access point signal received at client stations within the network, referred to as the OASS. In particular embodiments, a station that is either originating or forwarding a frame inserts its own OASS into the frame before transmitting it and a client station that receives a frame forwards it only if its own OASS exceeds the frame-enclosed OASS, illustratively by at least a predetermined amount.

Abstract: During wireless data communication with a digital camera, when a setting operation of communication parameters is designated by a communication setting button, the data communication with the camera is suspended, and the network is switched to a network for setting communication parameters for another camera. With this network, a setting operation of communication parameters for another camera is performed. Thereafter, the network for setting communication parameters is switched to the network for data communication with the original camera.

Abstract: Method and apparatus for enhanced selection of a channel for use in redistributing mobile stations to various frequencies in a communication system. In one aspect, the method appends a redistribution alteration record to a common channel redistribution message. The redistribution alteration record alters the sequencing of the mobile station when selecting a channel in the common channel redistribution message.

Abstract: A method and apparatus for avoiding simultaneous service origination and paging in a mobile operating in a group communication network provides for receiving a floor-control request, e.g., in short data burst (SDB) form, from a source communication device for initiating a group call, initiating a service origination process for the source communication device, and transmitting a response to the floor-control request from a controller after the service origination process is complete. In one aspect, the method and apparatus provides for transmitting a response to the floor-control request from a wireless infrastructure after the service origination process is complete. In another aspect, the method and apparatus provides for initiating the service origination process for the source communication device after transmitting the response to the source communication device.

Abstract: A method of supplying channel information in a wireless communication system comprises a mobile terminal normally providing a basic channel report to the wireless communication system; the mobile terminal receiving at least one common feedback criterion broadcast to a plurality of mobile terminals; the mobile terminal determining if the mobile terminal satisfies a condition based on the at least one common feedback criterion; and the mobile terminal selectively providing an enhanced channel report to the wireless communication system based on the determining. The basic channel report may comprise information related to a first set of channel parameters, and the enhanced channel report may provide greater detail on the first set of channel parameters and/or relate to a second set of channel parameters. A method of a base station adaptively controlling channel information reporting by broadcast transmitting at least one common feedback criterion is also presented.

Abstract: A method for determining a number of ranging slots by a base station (BS) in a broadband wireless access (BWA) communication system. The method includes counting the number of mobile stations (MSs) that succeeded in ranging in a current frame, determining a ranging slot occupation ratio in the current frame, comparing a ranging slot occupation ratio of a previous frame with the ranging slot occupation ratio of the current frame, detecting an increase in the number of ranging-requesting MSs, if the ranging slot occupation ratio of the current frame is greater than the ranging slot occupation ratio of the previous frame, and determining the number of ranging slots of a next frame such that the number of ranging slots of the next frame is greater than the number of ranging slots of the current frame.

Abstract: Methods to optimize range of multicast signal communication in wireless communication applications that use range-enhanced techniques for directed signal communication. A multicast signal may be sent multiple times through each of a plurality of independent omnidirectional transmit antennas of a communication device to a plurality of other communication devices to improve packet error rate (PER) at a given range (i.e., SNR). More generally, the multicast message can be transmitted up to N times using up to N times using any set of N complex linearly independent N-dimensional transmit weight vectors vi, . . . , vN associated with N plurality of transmit antennas that meets the power constraint ?vi?2=1, i=0, . . . , N?1, where the vector vi, is used for the ith transmission of the multicast signal.

Abstract: A communication system is provided for communication between network nodes and a communication controller. In the network, a request signal is transmitted from a first node to the communication controller when the first node has a packet data message to transmit. The communication controller then acknowledges the request, and the first node transmits its data message in response. The communication controller further transmits a clocking signal allowing synchronization of the node signals with the controller signals. The clocking signal, request, acknowledgement and data message can all be provided on different frequencies, allowing simultaneous transmission of these signals for efficient operation.

Abstract: Techniques and systems for providing services to a mobile device allow settings on the mobile device to be provisioned over the air. In response to a request for mobile service subscription options received from the mobile device, data relating to mobile service subscription options, for selection by a user of the mobile device, may be sent to the mobile device over a wireless communication path. A selection of one or more subscription options may be received from the mobile device over the wireless communication path, and a service corresponding to the selected subscription options may be activated in response to the selection. Settings associated with the selected subscription options may be downloaded over the air to the mobile device, which may store the settings to enable the mobile device to access the subscription.

Abstract: In one embodiment, a scheme is provided for customization of a mobile communications device's data session retry mechanism in a wireless packet data service network. Upon detecting that a cause code has been returned by a node disposed in a wireless packet data service network, a structure is interrogated to determine if the cause code is mapped to a flag relating to the device's data session retry mechanism. Responsive to determining that the received cause code is mapped as a critical cause code, the data session retry mechanism of the mobile communications device is disabled so that further signaling messages towards the network are prevented.

Abstract: Association request messages received by one or more access points of a wireless local area network are used to infer the location of a mobile unit requesting association. Association may be refused for security purposed if it is determined that the mobile unit is not within an area services by the wireless network. In addition the inferred location can be used to assign the mobile unit to an access point for association.

Abstract: The present invention implements a method and system for dynamically adapting the modulation and coding scheme for radio links in a wireless communications network based on a retransmission environment model in order to maximize throughput and most efficiently allocate bandwidth resources. The present invention encompasses a refined calculus and methodology for deriving the link adaptation thresholds in a retransmission environment using a complex model and analysis of the retransmission environment. The present invention holds particular application for wireless data communications as opposed to real time data services because it is based on a retransmission model applicable primarily for data services. A critical component of this new link adaptation system is a “no transmission” cutoff mode that is selected for SIR below a base threshold value. This new mode prevents system instability and misallocation of bandwidth in a wireless communication system.

Abstract: A method of automatically keeping sockets open for always-on applications in a GPRS context is provided. Information is maintained by each wireless device identifying each APN (access point name)-port pair associated with a PDP (packet data protocol) context used by an always-on application. Upon the PDP context becoming available after having become unavailable, a socket is registered for each port-APN pair associated with the PDP context.

Abstract: A transmitter used in the multiband environment includes a frequency allocation unit (106) configured to select and allocate a frequency band that satisfies a user QoS from among multiple separate frequency bands currently available for the user, a parameter determination unit (111) configured to determine a transmission parameter required for signal transmission based on the allocated frequency band, and a multi-user scheduling control unit (110) configured to determine a transmission schedule for multiple users taking into account the frequency bands allocated to the multiple users.

Abstract: One of objects of a wireless communication apparatus according to the present invention is to realize stable communication regardless of received signal strength indication and information amount. The wireless communication apparatus for communicating in an autonomous distributed wireless network includes a detection unit which generates a detection signal by detecting a first wireless signal from a first wireless apparatus; a wireless circuit which receives a second wireless signal relating to said first wireless signal, transmitted from a second wireless apparatus which received said first wireless signal; a signal estimation unit which estimates said detection signal and the received second wireless signal; a signal selector which selects either said detection signal or the received second wireless signal, based on an estimation result of said signal estimation unit; and a demodulator which demodulates the signal selected by said signal selector.

Abstract: The present invention implements a method and system for dynamically adapting the modulation and coding scheme for radio links in a wireless communications network based on a retransmission environment model in order to maximize throughput and most efficiently allocate bandwidth resources. The present invention encompasses a refined calculus and methodology for deriving the link adaptation thresholds in a retransmission environment using a complex model and analysis of the retransmission environment. The present invention holds particular application for wireless data communications as opposed to real time data services because it is based on a retransmission model applicable primarily for data services. A critical component of this new link adaptation system is a “no transmission” cutoff mode that is selected for SIR below a base threshold value. This new mode prevents system instability and misallocation of bandwidth in a wireless communication system.

Abstract: A mobile station device includes a device for transmitting an access packet to a base station device, and a device for retransmitting the access packet when no acknowledgement is received from the base station in response to the transmission of the access packet. The mobile station device also includes a received power processing section for sequentially storing received power of a pilot signal transmitted from the base station, and determining transmission power at the retransmitting time of the access packet on the basis of these stored contents. A signal receiving section obtains interference amount information showing an interference amount in the base station. A data transmitting section transmits the access packet using power according to the interference amount information.

Abstract: In one illustrative method, a periodic location update timer value is broadcasted by a wireless communication network and received and stored in memory of a mobile station. A request for data service is transmitted by the mobile station to a wireless communication network, and the request is reattempted at least one time in response to identifying a rejection of the request. If the request for the data service is accepted in response to the request, the mobile station operates in the wireless communication network using the data service. On the other hand, if the request for the data service is not accepted, the mobile station is set in a data service deregistered state. A timer is initialized with an initial value that is less than the periodic location update timer value and started. In response to an expiration of the timer, the mobile station repeats the transmission of the request for the data service and any reattempts in response to any rejections of the request.

Abstract: The invention provides an advisory alert indicating conditions are such that an ongoing telephone call involving a cellular telephone may be dropped due to insufficient signal strength. A decrease in signal strength over time that exceeds a specified percentage decrease provides the primary basis for triggering the advisory alert. This advisory alert warns one or more participants of the call of the possibility of the call ending due to low signal strength. The advisory alert provides for conclusion of the call before the call is lost, and/or lowers the frustration level associated with a call lost for an unknown reason. In operation, signal strength is assessed during a series of time intervals. Signal strength of consecutive time intervals is compared. If the percentage drop in signal strength exceeds a specified percentage, an advisory alert is effectuated. The criteria that trigger an advisory alert may be non-programmable, or is modifiable in programmable embodiments.

Abstract: A method and system is disclosed for reactively managing dropped calls in a wireless communication system. A mobile station determines that it has experienced a dropped call. In response, the mobile station allows a user to continue communicating, such as by recording the user's speech, for instance. The mobile station may then play out the recorded speech to the user or to another call participant, such as upon reestablishment of the call.

Abstract: One of objects of a wireless communication apparatus according to the present invention is to realize stable communication regardless of received signal strength indication and information amount. The wireless communication apparatus for communicating in an autonomous distributed wireless network includes a detection unit which generates a detection signal by detecting a first wireless signal from a first wireless apparatus; a wireless circuit which receives a second wireless signal relating to said first wireless signal, transmitted from a second wireless apparatus which received said first wireless signal; a signal estimation unit which estimates said detection signal and the received second wireless signal; a signal selector which selects either said detection signal or the received second wireless signal, based on an estimation result of said signal estimation unit; and a demodulator which demodulates the signal selected by said signal selector.

Abstract: A radio terminal receives a directional multibeam from a radio base station and obtains each of correlation between orthogonal code series of the received directional multibeam and its own orthogonal code series to determine an orthogonal code series having the highest autocorrelation and further advertises orthogonal code series identification information identifying this orthogonal code series to the radio base station through an uplink physical channel. In comparison with a previous technique, this can shorten the time to be taken until the radio base station recognizes an orthogonal code series having the highest autocorrelation and a satisfactory reception condition in the radio terminal. Thus, it is possible to increase the speed of the loop control between the radio base station and the radio terminal, thereby improving the throughput of a channel to be used for the transmission of user data.

Abstract: The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are load balanced across APs so that user bandwidth is optimized. A movement detection scheme provides seamless roaming of stations between APs.

Abstract: A method of transmitting scheduling information by a wireless communication device (200) to a network (112) for allocation of resources to the wireless communication device, comprises the steps of transmitting (500) to the network first scheduling information (SI1) relating to a first resource requirement and re-transmitting (516) the first scheduling information when the first scheduling information is not received by the network. Second scheduling information (SI2) relating to a second resource requirement subsequent to the first resource requirement is transmitted (512) to the network (112) in response to one of the first scheduling information having been received by the network and the first scheduling information having not been received by the network after a predetermined number of re-transmissions of the first scheduling information. The generation of scheduling information may be initiated in response to a trigger event such as a periodic trigger event or a non-periodic trigger event.

Abstract: A method and apparatus are disclosed for enabling coexistence in a wireless local-area network between legacy stations and stations that can transmit higher-bandwidth signals. The illustrative embodiment employs a transceiver that can transmit and receive higher-bandwidth signals over a combination of two or more shared-communications channels, and an enhanced medium access control (MAC) protocol by which stations progressively reserve channels before transmitting higher-bandwidth signals.

Abstract: The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are load balanced across APs so that user bandwidth is optimized. A movement detection scheme provides seamless roaming of stations between APs.

Abstract: A wireless communication system wherein wireless infrastructure adapts access parameters and manages channel resources based on detailed reconnection information obtained from individual mobile stations. Mobile stations transmit particular reconnection attempt status information to the wireless infrastructure. The reconnection attempt status information, along with the aggregate statistics of other mobile stations, is used by the infrastructure to adapt access parameters to increase or decrease the likelihood of successful access. This allows the infrastructure to tune access parameters to particular mobile station information and it also allows the infrastructure to provide better resource management for both traffic channel assignments and access channel usage.

Abstract: A network communication system is provided for communication between network nodes, including individual nodes and a central control station node. In the network, signals are transmitted from the central control node to identify specific timeslots in which individual nodes may transmit a request signal to the central control node. When a first individual node has data to transmit, the first individual node transmits a request signal to the central control node in its identified timeslot, the request including randomly generated information for identification of the node. In response to the request signal, the central control node transmits a grant signal along with the randomly generated information back to the first node to allow the first node to identify the grant.

Abstract: A network communication system is provided for communication between network nodes, including individual nodes and a central control station node. In the network, signals are transmitted from the central control node to identify one or more frequencies that the node may transmit. When a first individual node has data to transmit, the first individual node transmits a request signal to the central control node over one or more of its assigned frequencies. In response to the request signal, the central control node transmits a grant signal assigning one or more frequencies to allow the first node to transmit its data.

Abstract: A mobile station is configured to measure receiving qualities of respective signals from a first antenna and a second antenna of a base station (S3, S5), store the results of the measurement, and request the base station to retransmit a signal from an antenna with a higher receiving quality, based on the stored measurement results, when an error is detected in received data thereafter (S10, S11, S12). The base station retransmits the data, using the antenna with the higher receiving quality (i.e., a base station antenna to yield the higher receiving quality at the mobile station) (S15). In another aspect, the mobile station measures a receiving quality of a signal and notifies the base station of the receiving quality. The base station selects a radio channel adapted to a receiving quality on the basis of the measurement result and transmits a signal, using the radio channel.