2061 results about "Radio access" patented technology

A novel and useful apparatus for and method of coordinating the allocation of transmission and reception availability and / or unavailability periods for use in a communications device incorporating collocated multiple radios. The mechanism provide both centralized and distributed coordination to enable the coordination (e.g., to achieve coexistence) of multiple radio access communication devices (RACDs) collocated in a single device such as a mobile station. A distributed activity coordinator modifies the activity pattern of multiple RACDs. The activity pattern comprises a set of radio access specific modes of operation, (e.g., IEEE 802.16 Normal, Sleep, Scan or Idle modes, 3GPP GSM / EDGE operation mode (PTM, IDLE, Connected, DTM modes), etc.) and a compatible set of wake-up events, such as reception and transmission availability periods. To prevent interference and possible loss of data, a radio access is prevented from transmitting or receiving data packets while another radio access is transmitting or receiving. In the event two or more RATs desire to be active at the same time, the mechanism negotiates an availability pattern between the MS and a corresponding BS to achieve coordination between the RATs.

Communication systems and methods are provided allowing a single mode mobile terminal to support mobile assisted signal strength measurement operations in both a fixed frequency reuse based communication network and an adaptive channel allocation based communication network. Candidate base station signal strength measurements are requested by a fixed frequency reuse type network, measured by the mobile terminal and provided to the fixed frequency reuse type network which is seeking to identify a strongest signal for mobile assisted handover operations. In addition, interference signal strength measurements are requested by an adaptive channel allocation type network, measured by the mobile terminal and provided to the adaptive channel allocation type network by the mobile terminal. No redundant circuitry is required in the mobile terminal. Instead, the mobile terminal executes the same operations using the same hardware regardless of whether the requested measurement is of a candidate signal strength or an interference signal.

Various schemes for performing inter-system handoff, e.g., from a UTRAN to a cdma2000 radio access network (RAN) are described. For a MAHHO scheme, the UTRAN uses measurements obtained by a multi-RAT device to determine suitable cdma2000 cell(s) for handover. The measurements are obtained by a candidate frequency search procedure, and the handover is accomplished by a handoff execution procedure. For a MDHHO scheme, the UTRAN relies on location information for the multi-RAT device to select suitable cdma2000 cell(s) for handover. For a CRHHO scheme, a new call is established on the cdma2000 RAN and the pending call on the UTRAN is released in a manner such that the handover appears seamless to the multi-RAT device. The multi-RAT device includes two modem processors that perform processing for the UTRAN and cdma2000 RAN and an application processor that controls the modem processors.

A Common radio resource management method is performed in a mobile radio communication network employing different radio access technologies that overlap over a geographic area subdivided into cells belonging to the domains of respective controllers which are connected to each other in overlapping or adjacent domains and to a core network by means of relevant interfaces. The controllers calculate new traffic-related Information Elements to be exchanged over the existing interfaces to the aim of planning handovers and / or cell reselections towards adjacent cells either of the same or different RAT. Cell capabilities and mobile terminal capabilitiess being also specified by respective IEs. Diversely from the conventional traffic-related IEs based on Cell Load parameters or Free Capacity, the new IEs include indications of the “availability” of bearer services in the cell in terms of maximum bitrate, either guaranteed or not guaranteed, that can currently be allowed to each bearer service.

A method for controlling a UE (User Equipment) to retransmit an RRC (Radio Resource Control) connection request message in a mobile communication system capable of providing an MBMS (Multimedia Broadcast / Multicast Service). The method includes the steps of determining, by an RRC layer of the UE, if a control message including a timer value corresponding to a cell having the UE is received from a RNC (Radio Access Controller); transmitting the RRC connection request message to the BSC over an uplink common channel when the control message is equal to an MBMS control message; and repeatedly transmitting the RRC connection request message in response to the timer value until receiving a response message from the BSC.

An ad-hoc, peer-to-peer radio access system having a series of remote terminals, where each remote terminal is capable of forming a link, or hop, of the routing of a call made by one of the series of terminals. The status of the battery of each terminal which may potentially form part of the routing path of a call is reported to other terminals, whereby the routing path for a call will be decided also based on the status of the battery-charge of each terminal along the routing path.

An ad-hoc, peer-to-peer radio access system for cellular communications systems using time division duplex as a way of maximizing the bits / hz / km2 for cellular systems. The network architecture of the ad-hoc system allows the radio access to be integrated with the fixed components of a conventional cellular system, PSTN or ISP. The objective is to make the system of the invention transparent to the features and services provided by the external network. The advantages of such a system to a cellular operator are that significantly less infrastructure is required, and that the RF spectrum is more efficiently utilized resulting in much lower building and operating costs. The system architecture is comprised of remote terminals, routers, gateways, and at least one gateway controller that interfaces the ad-hoc system to a cellular network system. The ad-hoc system of the invention allows for both voice and data transmissions and receptions.

Techniques for initiating a backhaul connection between a radio node controller and a packet data serving node of a radio access network based on a determination of a presence of a packet data session on an access terminal. Techniques for enabling a dormant access terminal in communication with a radio access network to maintain a point-to-point (PPP) session with a packet data serving node as the dormant access terminal moves from a coverage area associated with a first radio node controller to a coverage area associated with a second radio node controller prior to a completion of a backhaul connection setup by the first radio node controller.

A method of managing heterogeneous wireless devices in three or more different types of networks is disclosed. Each type of network uses a different type of radio access technology. The method includes receiving measurement data from a plurality of heterogeneous wireless devices via a control interface, wherein a heterogeneous wireless device provides connections to client devices via one or more of the three or more radio access technologies. The method includes searching, using a processor, for optimized adjustments to one or more parameters associated with one or more of the plurality of heterogeneous wireless devices based at least in part on a set of network optimization goals and the measurement data received from the plurality of heterogeneous wireless devices. The method includes transmitting at least some of the optimized adjustments of the one or more parameters to the one or more of the plurality of heterogeneous wireless devices.

The present invention relates to a method and mobile terminal for transmitting data on uplink within a mobile communication system. Further the invention relates to a network entity for allocating uplink resources to such a mobile terminal. When a user equipment is transmitting uplink (UL) data according to allocated resources, it has to indicate the transport format of the current data transmission to Node B by means of UL control signaling. To propose a scheduling scheme which reduces the overhead of uplink control signaling, a method is proposed that achieves a significant reduction of the UL control signaling overhead by considering characteristics of an orthogonal radio access scheme used for evolved UTRA uplink scheme and using differential signaling of the transport format information. Although the invention is particularly suitable for uplink transmissions in an orthogonal single-carrier radio access scheme, it is not restricted to this particular embodiment.

A system for managing the operation of a plurality of radio modules (1200), in the same device (100). A controller (600) may receive information pertaining to a plurality of wireless communication mediums being supported by radio modules (1200) in the device. The multiradio controller may formulate an operational schedule for the wireless communication mediums based on this information. Further, a network controller (1202) for a network may provide information related to one or more time periods during which the device may operate. This network information may be received by the device and also considered by the multiradio controller, which may further request that one or more of these time periods be altered, in the device, so as to align with the operational schedule.

A method and system for wireless data communication using a first wireless communication technology and a second wireless communication technology. The second wireless communication technology being different from the first wireless communication technology. A transmitter is arranged to transmit data using frame structures based on the first wireless communication technology and the second wireless communication technology in which the frame structure based on the second wireless communication technology has a timing structure, MAC and pilot that are also used with the frame structure of the first wireless communication technology. The transmitter is arranged to selectively change transmission on a frame by frame basis between the first wireless communication technology and the second wireless communication technology.

An improved connectivity to radio access point is enabled by a server that includes a database storing data about various radio access points, and an evaluation module evaluating the quality of connection to each of the access points. Clients receive updates about relevant access points from the server and use the information to connect to the preferred access point. The clients also check connectivity to other access points in the vicinity, and report the findings to the server. The server uses the reports to update its database, and send corresponding updates to the clients.

According to embodiments of the invention, user equipment (UE) performs inter-radio access technology (RAT) neighbour cell measurements during an idle mode of the UE. The inter-RAT measurement results may be stored in an internal memory of the UE during the Idle mode. When the UE initiates a connection setup, an inter-RAT measurement report containing inter-RAT measurement results obtained during the idle mode is sent to the network at the connection setup. Consequently, the inter-RAT measurement information is immediately available for a network decision at the beginning of the connected mode. For example, an inter-RAT handover can be decided and performed without a delay, based on the inter-RAT measurements made in advance during the idle mode and reported at the connection setup.

A divider / combiner unit combines RF signals, then converts the combined signal into an optical signal and sends it over an optical fiber. N radio access units each convert the optical signal received from the optical fiber into an RF signal and transmits it from an antenna, and each radio access unit converts an RF signal received by the antenna into an optical signal and sends it over an optical fiber to the divider / combiner unit. The divider / combiner unit converts the received optical signal into RF signals and outputs them. This system is operated as plurality of communication systems in common to them in correspondence to a plurality of input / output terminals of the divider / combiner unit.

The invention provides a method for assisting handover of a user terminal's, UT's, communication session in an integrated multi RAT network, said method to be carried out by an RNCI being installed in said network, said method comprising the following steps:— receiving a “Handover Candidate” message comprising a message type identifier information element identifying said message as being a “Handover Candidate” message and which message identifies said session and which message further identifies a candidate RNC of said network, wherein said candidate RNC constitutes an RNC handover candidate for said session,— establishing the identity of said RNC by investigating said message,— associating said communication session with said candidate RNC identified in the previous step. The invention provides an RNC1, RNC2, and software, realising the method according to the invention.

User equipment (UE) can detect a Radio Link Control (RLC) unrecoverable error and a Radio Link (RL) failure. The two errors are handled differently while the UE is in a dedicated channel (DCH) state. The RL failure leads to execution of Radio Access Bearer (RAB) release steps, characterized by utilizing respective timer values to determine if associated RABs should be released. The RLC unrecoverable error is not permitted to execute the RAB release steps. This prevents unnecessary dropping of services. The UTRAN can optionally include and set the indicators to command the UE to perform the indicated RLC re-establishmentprocedure.

Currently, network utilization and performance are diminished due to capacity issues, which may be resolved by adding hardware / software to spread traffic uniformly according to network element usage information. Disclosed is a method of and corresponding apparatus for resolving network element capacity issues in a wireless network by inspecting data traffic content for information about wireless network elements and data traffic content, collecting said information, and managing (e.g., shaping and steering) the incoming traffic based on the information. Examples of said information include radio bearer resource information for network elements and traffic associated with a wireless access portion of the wireless network and radio access bearer information for network elements and traffic associated with a backhaul portion of the wireless network. By employing embodiments of the invention, network utilization and performance may be increased using existing wireless network elements in a manner overlaid on existing network optimization techniques (e.g., load balancing).

An improved connectivity to radio access point is enabled by a server that includes a database storing data about various radio access points, and an evaluation module evaluating the quality of connection to each of the access points. Clients receive updates about relevant access points from the server and use the information to connect to the preferred access point. The clients also check connectivity to other access points in the vicinity, and report the findings to the server. The server uses the reports to update its database, and send corresponding updates to the clients. The database can include information about the location of the access points. The information about the location of the access points can be manually input or determined using GPS information. The location of an access points can be determined as a function of available information about other access points detected at the same location. An access point can be presumed to be located in approximately the same location as another access point detected in the same location by the same user terminal. Where more than one access point having a known location is detected in the same location as an unmapped access point (having an unknown location), the location of the unmapped access point can be determined as function of a weighted average of the known locations of the other access points and signal strength of the signal received from each access point.

An ad-hoc, peer-to-peer radio access system for cellular communications systems using time division duplex as a way of maximizing the bits / hz / km2 for cellular systems. The network architecture of the ad-hoc system allows the radio access to be integrated with the fixed components of a conventional cellular system, PSTN or ISP. The objective is to make the system of the invention transparent to the features and services provided by the external network. The advantages of such a system to a cellular operator are that significantly less infrastructure is required, and that the RF spectrum is more efficiently utilized resulting in much lower building and operating costs. The system architecture is comprised of remote terminals, routers, gateways, and at least one gateway controller that interfaces the ad-hoc system to a cellular network system. The ad-hoc system of the invention allows for both voice and data transmissions and receptions.

A technique is provided for use by a Multi-Radio Management Resource (MRRM) component of a multi-radio wireless communication system for controlling the handover of a mobile terminal between different radio access technologies (RAT). In one example, all suitable RATs having coverage areas currently covering the location of a mobile terminal are identified. The performance gain that might be achieved via a handover to one of the other RATs is then determined by the MRRM based on various performance gain factors. Handover costs that will be incurred as a result of the handover are also explicitly calculated. Then, a cost-adjusted gain is determined by the MRRM based on the performance gain and the handover costs. A handover is only triggered by the MRRM if the cost-adjusted gain exceeds a minimum threshold. The speed and trajectory of the mobile terminal may also be considered.

A wavelength division multiplexed optical access network including a central office for multiplexing first optical signals used for transmitting a high-speed wire data service to a subscriber side and second optical signals used for transmitting a wireless data service to a remote subscriber terminal, a remote node connected to the central office through an optical fiber and for de-multiplexing a multiplexed optical signal received from the central office, a plurality of subscribers connected to the remote node, each subscriber receiving a first optical signal having a corresponding wavelength from among the de-multiplexed first optical signals, and a plurality of radio access units connected to the remote node, each radio access unit converting a second optical signal having a corresponding wavelength from among the de-multiplexed second optical signals into a wireless electric signal and wirelessly transmitting the wireless electric signal.

Communication systems and methods are provided allowing a single mode mobile terminal to support mobile assisted signal strength measurement operations in both a fixed frequency reuse based communication network and an adaptive channel allocation based communication network. Candidate base station signal strength measurements are requested by a fixed frequency reuse type network, measured by the mobile terminal and provided to the fixed frequency reuse type network which is seeking to identify a strongest signal for mobile assisted handover operations. In addition, interference signal strength measurements are requested by an adaptive channel allocation type network, measured by the mobile terminal and provided to the adaptive channel allocation type network by the mobile terminal. No redundant circuitry is required in the mobile terminal. Instead, the mobile terminal executes the same operations using the same hardware regardless of whether the requested measurement is of a candidate signal strength or an interference signal.

Disclosed herein is a method of managing a hybrid network including a cellular network and a local network wherein a number of dual mode mobile terminals are connectable to a base station of the cellular network through a direct cellular link and are also connectable, one with respect to the other, through the local network by a radio access technique. The method includes the steps of computing a cost associated with a direct connection established along a path (A) extending from a selected mobile terminal to the base station through the cellular link only, computing a cost (Ccg) associated with at least one indirect connection established along a path (B) extending from the selected mobile terminal to the base station through the local network and the cellular network, and selecting for data transmission the path that minimizes the cost.

A method and system that mitigates data session degradation over a radio link connection with an end server by allocating resources at a wireless communication device based on real-time radio frequency (RF) channel conditions. A performance tracking and resource allocation (PTRA) logic monitors radio access bearer (RAB) configuration and radio link quality for communication links between the WCD and the end server. The PTRA logic sets a maximum transmission unit (MTU) size parameter to a pre-established size associated with the measured radio link quality. In response to detecting a change in the RAB configuration, the PTRA logic performs a real-time round trip time (RTT) measurement utilizing individual RTTs associated with packet segments transmitted at a lower protocol layer. In addition, the PTRA logic modifies at least one of a transmission control protocol (TCP) receive window (RWIN) and a TCP transmit window (TWIN) using the real-time RTT measurements and RAB configuration.

A method and system for providing wireless backhaul in a wireless radio access network having an overall allocated access bandwidth for access communication, the system including a radio access base station designed for out-of-band backhaul, the base station including an access transceiver communicating over an allocated frequency channel within the overall allocated access bandwidth, and an in-band backhaul unit coupled to the access base station including means for in-band communication of backhaul of the access base station.

An approach is provided for interworking between radio access networks that utilize different radio access technologies. Loading information of a plurality of radio access networks that are accessible by a terminal is determined. A list of candidates from the radio access networks are output based on the loading information for use by the terminal.

A system and method for indicating signal strength of a multi-mode wireless communication device is disclosed. The wireless communications device simultaneously displays signal strength indicators of multiple radio access technologies on the multi-mode wireless communication device. In an exemplary method, the multi-mode wireless device determines a first signal strength of a first radio access technology and displays the signal strength in a designated annunciator area of a display of the device. The device then determines availability and signal strength for a second radio access technology and further displays a second signal strength indicator in the annunciator area corresponding to the second determined signal strength of the second radio access technology.

A method, an apparatus and a computer program product for configuring remote antenna units with communication properties in a radio access communication system employing a distributed antenna system (DAS) are provided. The method including configuring each of the one or more remote antenna units with remote-antenna-unit-specific communication properties dynamically during communication.