Patent application number | Description | Published |
20090129333 | PREAMBLE DESIGN FOR A WIRELESS SIGNAL - Providing for management of wireless communications in a heterogeneous wireless access point (AP) environment is described herein. By way of example, system data of an over-the-air message can be configured to include information identifying a distinct type of transmitting base station. In some aspects, the information can include an access type of the base station and/or a sector ID for distinguishing the base station among large numbers of other base stations. According to other aspects, system data transmitted on the wireless signal can include wireless channel resources designated for a particular type of base station, or blanked by the transmitting base station, to facilitate interference reduction on such resources. By employing aspects of wireless communication management disclosed herein, efficient and reliable communication can be affected in large heterogeneous AP networks. | 05-21-2009 |
20090129350 | PREAMBLE DESIGN FOR A WIRELESS SIGNAL - Providing for management of wireless communications in a heterogeneous wireless access point (AP) environment is described herein. By way of example, system data of an over-the-air message can be configured to include information identifying a distinct type of transmitting base station. In some aspects, the information can include an access type of the base station and/or a sector ID for distinguishing the base station among large numbers of other base stations. According to other aspects, the information can include wireless channel resources designated for a particular type of base station, or blanked by the transmitting base station, to facilitate interference reduction on such resources. By employing aspects of wireless communication management disclosed herein, efficient and reliable communication can be affected in large heterogeneous AP networks. | 05-21-2009 |
20090131098 | PREAMBLE DESIGN FOR A WIRELESS SIGNAL - Providing for management of wireless communications in a heterogeneous wireless access point (AP) environment is described herein. By way of example, system data of an over-the-air message can be configured to include information identifying a distinct type of transmitting base station. In some aspects, the information can include an access type of the base station and/or a sector ID for distinguishing the base station among large numbers of other base stations. According to other aspects, the information can include wireless channel resources designated for a particular type of base station, or blanked by the transmitting base station, to facilitate interference reduction on such resources. By employing aspects of wireless communication management disclosed herein, efficient and reliable communication can be affected in large heterogeneous AP networks. | 05-21-2009 |
20090176503 | FLEXIBLE MEDIUM ACCESS CONTROL (MAC) FOR AD HOC DEPLOYED WIRELESS NETWORKS - Systems and methods are disclosed that facilitate wireless communication using resource utilization messages (RUMs), in accordance with various aspects. A RUM may be generated for a first node, such as an access point or an access terminal, to indicate that a first predetermined threshold has been met or exceeded. The RUM may be weighted to indicate a degree to which a second predetermined threshold has been exceeded. The first and/or second predetermined thresholds may be associated with various parameters associated with the node, such as latency, throughput, data rate, spectral efficiency, carrier-to-interference ratio, interference-over-thermal level, etc. The RUM may then be transmitted to one or more other nodes to indicate a level of disadvantage experienced by the first node. | 07-09-2009 |
20090197538 | INTERFERENCE REDUCTION REQUEST IN A WIRELESS COMMUNICATION SYSTEM - Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a first station (e.g., a base station or a terminal) may send a first message to at least one interfering station to request reduction of interference on at least one resource. The first station may send the first message in anticipation of receiving data on the at least one resource. An interfering station may receive the first message from the first station and may reduce interference on the at least one resource by reducing its transmit power and/or by steering its power in a direction different from the first station. The first station may thereafter receive data from a second station on the at least one resource. The techniques may be used for data transmission on the forward and reverse links. | 08-06-2009 |
20090197588 | BACKHAUL SIGNALING FOR INTERFERENCE AVOIDANCE - Providing for interference reduction and/or avoidance utilizing backhaul signaling between wireless access points (APs) of a wireless access network (AN) is described herein. By way of example, an interference avoidance request (IAR) can be issued by an AP to reduce signal interference on forward link (FL) and/or downlink (DL) transmissions by neighboring APs. The IAR can be routed via a backhaul network and/or over-the-air via access terminals (ATs) coupled with the AP or one or more interfering APs. Upon receiving the IAR, an interfering AP can determine reduced transmit power levels for FL and/or RL transmissions and respond to the IAR. The response can include reduced power levels and can be sent via the backhaul network or OTA. By employing the backhaul network in full or in part, interference avoidance can be conducted even for semi-planned or unplanned heterogeneous networks coupled by the backhaul. | 08-06-2009 |
20090197590 | SHORT-TERM INTERFERENCE MITIGATION IN A WIRELESS COMMUNICATION SYSTEM - Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a serving base station may send a message to a terminal to trigger short-term interference mitigation. In response, the terminal may send a message to request at least one interfering base station to reduce interference on at least one resource. Each interfering base station may determine a transmit power level to be used for the at least one resource and may send a pilot at this transmit power level. The terminal may estimate the channel quality of the at least one resource based on at least one pilot received from the at least one interfering base station. The terminal may send information indicative of the estimated channel quality to the serving base station. The serving base station may send a data transmission on the at least one resource to the terminal. | 08-06-2009 |
20090197629 | POWER DECISION PILOT FOR A WIRELESS COMMUNICATION SYSTEM - Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a first station (e.g., a base station or a terminal) may receive a message sent by a second station to request reduction of interference on at least one resource. In response to receiving the message, the first station may determine a first transmit power level to use for the at least one resource based on one or more factors such as a priority metric sent in the message, the buffer size at the first station, etc. The first station may send a power decision pilot on the at least one resource at a second transmit power level determined based on the first transmit power level. | 08-06-2009 |
20100008244 | DOMINANT INTERFERER INDICATION IN ACCESS PROBE - Systems and methodologies are described that facilitate indicating a dominant interferer to a target serving base station in a wireless communication environment. A mobile device can detect presence or absence of a dominant interferer. Further, an access probe that includes information related to the presence or absence of the dominant interferer can be generated. For example, the information can be included in a payload of the access probe as an explicit flag, an explicit indication of an interference level, a Channel Quality Indicator (CQI) value (e.g., reserved versus non-reserved, . . . ), etc. Moreover, the access probe can be transmitted to the target serving base station to initiate an access procedure. The target serving base station can select a time-frequency resource to be utilized for a responsive downlink transmission (e.g. access grant signal, subsequent access related message, . . . ) as a function of the information included in the access probe. | 01-14-2010 |
20100099431 | METHOD AND SYSTEM FOR INTERFERENCE MANAGEMENT IN A SPECTRUM SHARED BY WAN AND FEMTO CELLS - Devices and methods are provided for adapting to interference in a spectrum shared by a WAN macro cell and a femto cell. In particular, described herein are techniques for adapting to the presence of a jamming WAN access terminal (AT) by avoiding or selectively utilizing those bandwidth portions jammed by the WAN AT/AP. For example, the technique may involve intercepting a control message from the WAN AP to the WAN AT, and determining a spectrum resource that the WAN AT will use to communicate with the WAN AP based at least in part on information (e.g., a Cell Radio Network Temporary Identifier, a Media Access Control Identifier, etc.) in the control message. | 04-22-2010 |
20100135326 | TECHNIQUE FOR BUNDLE CREATION - Systems and methodologies are described that facilitate creating a packet bundle of Internet Protocol (IP) packets that can be utilized for Just-In-Time (JIT) processing and/or offline processing. In general, upon receipt or detection of incoming IP packets, two or more IP packets can be bundled or packaged together to create a packet bundle. Furthermore, the packet bundle can be created based upon a timer in which a maximum size of the packet bundle and a maximum number of IP packets within a packet bundle can be maintained. | 06-03-2010 |
20100158044 | METHOD AND APPARATUS FOR BUNDLING AND CIPHERING DATA - Techniques for bundling and ciphering data prior to transmission are described. In an exemplary design, a transmitting entity receives a plurality of service data units (SDUs) from an upper layer, assigns sequential sequence numbers to the SDUs, and bundles the SDUs into a single protocol data unit (PDU). In one design, the transmitting entity generates a single count value based on a sequence number of a designated SDU (e.g., the first SDU) in the PDU and ciphers all SDUs based on the single count value. In another design, the transmitting entity ciphers each segment of at least two SDUs in the PDU based on a count value for that segment. The transmitting entity generates a header with at least one sequence number and possibly length and/or other information for the SDUs. The transmitting entity forms the PDU with the header and the SDUs and passes the PDU to a lower layer. | 06-24-2010 |
20100165936 | PRE-BUNDLING OF RLC SDUs IN THE RLC LAYER - Certain aspects of the present disclosure provide a technique for pre-bundling the received service data units (SDU) into an SDU bundle in a first communication layer before receiving a scheduling information from a second communication layer and adjusting the SDU bundle when the scheduling information is received. | 07-01-2010 |
20100172311 | HEARABILITY IMPROVEMENTS FOR REFERENCE SIGNALS - Systems and methodologies are described that facilitate providing high reuse for transmitting reference signals, such as positioning reference signals (PRS) and cell-specific reference signals (CRS), to improve hearability thereof for applications such as trilateration and/or the like. In particular, PRSs can be transmitted in designated or selected positioning subframes. Resource elements within the positioning subframe can be selected for transmitting the PRSs and can avoid conflict with designated control regions, resource elements used for transmitting cell-specific reference signals, and/or the like. Resource elements for transmitting PRSs can be selected according to a planned or pseudo-random reuse scheme. In addition, a transmit diversity scheme can be applied to the PRSs to minimize impact of introducing the PRSs to legacy devices. Moreover, portions of a subframe not designated for PRS transmission can be utilized for user plane data transmission. | 07-08-2010 |
20100202289 | METHOD AND APPARATUS FOR INTERFERENCE MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate interference control and resource management in a wireless communication system. As described herein, a base station, terminal, and/or other entity in a wireless communication system that observes interference from one or more other network entities can construct and communicate resource utilization messages (RUMs) in order to request the interfering network entities to conduct power backoff on designated resources. Parameters constructed as a function of quality of service (QoS) and/or priority metrics (such as head-of-line delays, queue lengths, burst sizes, delay targets, average rates, or the like) can be included within the RUM, such that an entity receiving the RUM can compute QoS changes associated with various power backoff levels in order to select a power backoff level that maximizes overall system QoS performance. | 08-12-2010 |
20100202388 | OVER-THE-AIR ENHANCEMENT FOR BACKHAUL DYNAMIC INTERFERENCE MANAGEMENT IN WIRELESS NETWORKS - Techniques for allocation resources in a wireless communications network are provided. | 08-12-2010 |
20100202613 | PACKET BUNDLING AT THE PDCP LAYER WITH CIPHERING ON THE PDCP SDU - Certain aspects of the present disclosure propose techniques for bundling and ciphering service data units (SDU) in the packet data convergence protocol (PDCP) layer. The proposed techniques increase the data rate of the communication system. At the transmitter side, the PDCP layer may bundle SDUs and cipher each SDU individually before submitting them to a lower layer. At the receiver-side, the PDCP layer may unbundle and decipher the SDUs before submitting them to higher layers. | 08-12-2010 |
20100203913 | METHOD FOR MANAGING SUB-BAND PREFERENCE ORDER IN A WIRELESS COMMUNICATION SYSTEM - Techniques for allocating resources in a wireless communications network are provided. According to certain aspects, a scheme is provided, wherein resources of sub-bands associated with non-interfering links are allocated before resources of sub-bands associated with interfering links. | 08-12-2010 |
20100208632 | PACKET BUNDLING AT THE PDCP LAYER - Certain aspects of the present disclosure provide a technique for bundling the received service data units (SDU) in a first communication layer to generate a protocol data unit (PDU) to pass to a second communication layer. For example, one or more packet data convergence protocol (PDCP) SDUs may be concatenated to generate a PDCP PDU and be sent to a radio link control (RLC) layer in the transmitter side. Similarly, one or more PDCP SDUs may be extracted from a PDCP PDU in the receiver side. | 08-19-2010 |
20100226275 | FLOW BASED FAIR SCHEDULING IN MULTI-HOP WIRELESS NETWORKS - Embodiments describe flow based fair scheduling in a wireless multi-hop network. The scheduling can be rate controlled multi-hop scheduling or power controlled multi-hop scheduling. The scheduling chosen is intended to provide maxmin fairness over all flows within the wireless network. | 09-09-2010 |
20100226276 | FLOW BASED FAIR SCHEDULING IN MULTI-HOP WIRELESS NETWORKS - Embodiments describe flow based fair scheduling in a wireless multi-hop network. The scheduling can be rate controlled multi-hop scheduling or power controlled multi-hop scheduling. The scheduling chosen is intended to provide maxmin fairness over all flows within the wireless network. | 09-09-2010 |
20100226328 | RESOURCE NEGOTIATION WITH VARIABLE-DELAY CONTROL INFORMATION EXCHANGE - According to certain aspects of the present disclosure, a scheme is provided which may help ensure a consensus on a delay threshold to be used between base stations that share resource negotiation information. | 09-09-2010 |
20100226335 | FLOW BASED FAIR SCHEDULING IN MULTI-HOP WIRELESS NETWORKS - Embodiments describe flow based fair scheduling in a wireless multi-hop network. The scheduling can be rate controlled multi-hop scheduling or power controlled multi-hop scheduling. The scheduling chosen is intended to provide maxmin fairness over all flows within the wireless network. | 09-09-2010 |
20100232543 | METHOD AND APPARATUS FOR SEQUENCING AND CORRELATING A POSITIONING REFERENCE SIGNAL - Aspects are disclosed for sequencing a positioning reference signal. A set of reference symbols associated with a reference signal are allocated, and a base sequence is generated. An extended sequence, which includes the set of reference symbols, is then provided according to the base sequence. The extended sequence is then transmitted in a sub-frame designated as an idle period. Aspects for correlating a positioning reference signal are also disclosed. A sequence of reference symbols is received from a base station during an idle period of the base station. A replicated sequence of reference symbols is generated, and a correlation is ascertained between a subset of the received sequence of reference symbols and a corresponding subset of the replicated sequence of reference symbols. The received sequence of reference symbols is then identified according to the correlation. | 09-16-2010 |
20100234016 | SYSTEMS, APPARATUS AND METHODS TO FACILITATE PHYSICAL CELL IDENTIFIER COLLISION DETECTION - Systems, apparatus, methods and computer program products for facilitating collision detection are provided. In some embodiments, a method can include: receiving identifying information during one or more time intervals from a plurality of base stations; determining whether at least two different values of the identifying information from the plurality of base stations have been transmitted during the same time interval; and determining that a collision has occurred between at least two of the plurality of base stations in response to determining that the at least two different values of the identifying information from the plurality of base stations have been transmitted during the same time interval. | 09-16-2010 |
20100238888 | SYSTEMS, APPARATUS AND METHODS FOR INTERFERENCE MANAGEMENT IN WIRELESS NETWORKS - Systems, apparatus, methods and computer program products are provided. In some embodiments, a method for facilitating interference management in an unplanned wireless communication system is provided. The method can include a non-serving base station synchronizing a non-serving base station downlink subframe to a serving base station downlink subframe, wherein the serving base station downlink subframe is transmitted from a serving base station to a user equipment served by the serving base station. The method can also include the non-serving base station decoding one or more control channel symbols of the serving base station downlink subframe; and determining information for performing interference management associated with the user equipment. The determined information can be based, at least, in part, on the decoded one or more control channel symbols of the serving base station downlink subframe. | 09-23-2010 |
20100238901 | SYSTEMS, APPARATUS AND METHODS FOR INTERFERENCE MANAGEMENT IN WIRELESS NETWORKS - Systems, apparatus, methods and computer program products are provided. In some embodiments, a method for facilitating interference management in an unplanned wireless communication system is provided. The method can include a non-serving base station obtaining information about a user equipment served by a serving base station; and determining signal information based, at least, in part, on the information. The method can also include the non-serving base station disallowing access to the user equipment due to restricted access rules for the non-serving base station. The method can also include the non-serving base station performing interference management of the user equipment served by the serving base station. The interference management can be performed based, at least, in part, on the determined signal information. | 09-23-2010 |
20100240382 | SYSTEMS, APPARATUS AND METHODS FOR INTERFERENCE MANAGEMENT IN WIRELESS NETWORKS - Systems, apparatus, methods and computer program products are provided. In some embodiments, a method for facilitating interference management in an unplanned wireless communication system is provided. The method can include a non-serving base station: determining information about a user equipment, wherein the user equipment is served by a serving base station; and employing determined information about the user equipment to perform interference management at a non-serving base station. The method can also include the non-serving base station synchronizing to the user equipment using information indicative of the uplink scrambling code for use by the user equipment and information indicative of uplink slot configurations being used by the user equipment. The method can also include the non-serving base station performing interference management on the user equipment served by the serving base station. | 09-23-2010 |
20100260133 | FLEXIBLE MEDIUM ACCESS CONTROL (MAC) FOR AD HOC DEPLOYED WIRELESS NETWORKS - Systems and methods are disclosed that facilitate wireless communication using resource utilization messages (RUMs), in accordance with various aspects. A RUM may be generated for a first node, such as an access point or an access terminal, to indicate that a first predetermined threshold has been met or exceeded. The RUM may be weighted to indicate a degree to which a second predetermined threshold has been exceeded. The first and/or second predetermined thresholds may be associated with various parameters associated with the node, such as latency, throughput, data rate, spectral efficiency, carrier-to-interference ratio, interference-over-thermal level, etc. The RUM may then be transmitted to one or more other nodes to indicate a level of disadvantage experienced by the first node. | 10-14-2010 |
20100296405 | SYSTEMS, APPARATUS AND METHODS FOR INTERFERENCE MANAGEMENT ON UPLINK CHANNELS IN WIRELESS COMMUNICATION SYSTEMS - Systems, methods, apparatus and computer program products for facilitating interference management on an uplink in a wireless communication system are provided. In one embodiment, a method can include: determining channel gain information measured on a downlink, wherein the determining is performed by a base station; determining interference from one or more interfering user equipment based on the channel gain information for the uplink; and calculating a nominal interference based on the interference from the one or more interfering user equipment. | 11-25-2010 |
20100298016 | SYSTEMS, APPARATUS AND METHODS FOR INTERFERENCE MANAGEMENT ON DOWNLINK CHANNELS IN WIRELESS COMMUNICATION SYSTEMS - Systems, methods, apparatus and computer program products to facilitate determining nominal interference from one or more interfering base stations are provided. In one embodiment, the method can include computing a nominal interference. The method can also include transmitting the nominal interference to one or more interfering base stations. The nominal interference can be transmitted to at least one of the one or more interfering base stations to compute a loss in transmission rate to a user equipment in a selected cell if at least one of the one or more interfering base stations transmits over a same set of resources on which the user equipment in the selected cell receives information. | 11-25-2010 |
20100329113 | METHOD AND APPARATUS FOR INTERFERENCE MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate interference control and resource management in a wireless communication system. As described herein, a base station, terminal, and/or other entity in a wireless communication system that observes interference from one or more other network entities can construct and communicate resource utilization messages (RUMs) in order to request the interfering network entities to conduct power backoff on designated resources. Parameters constructed as a function of quality of service (QoS) and/or priority metrics (such as head-of-line delays, queue lengths, burst sizes, delay targets, average rates, or the like) can be included within the RUM, such that an entity receiving the RUM can compute QoS changes associated with various power backoff levels in order to select a power backoff level that maximizes overall system QoS performance. | 12-30-2010 |
20100329198 | SYSTEMS, APPARATUS AND METHODS FOR CONFIGURATION OF SCHEDULING POLICY TO FACILITATE DISTRIBUTED SCHEDULING - Systems, apparatus, methods and computer program products are provided. In some embodiments, a method for configuration of scheduling policy to facilitate distributed scheduling is provided. The method can include receiving configuration information for configuring the scheduling policy for traffic. The scheduling policy can be configured according to a provisioned priority function. The configuration information can be received at a plurality of base stations in a respective plurality of different cells for provisioning a priority function at the plurality of base stations. | 12-30-2010 |
20110105065 | DYNAMIC INTERFERENCE CONTROL IN A WIRELESS COMMUNICATION NETWORK - A method and apparatus for dynamic interference management is disclosed. A frequency channel is partitioned into a plurality of groups. Two or more groups are assigned weights reflecting degrees of disadvantage of a node. Each group is further partitioned into a plurality of tones. A node experiencing interference determines a group, selects a tone within the group, and transmits a wireless signal using the selected tone. A receiving node receives a plurality of tones including the selected tone, identifies active tones from the received tones, and determines a response based on the weights of the active tones. | 05-05-2011 |
20110116436 | TRANSMISSION AND RECEPTION OF A REFERENCE SIGNAL SUPPORTING POSITIONING IN A WIRELESS COMMUNICATION NETWORK - Techniques for transmitting and receiving a reference signal in a wireless network are described. In one design, a UE may generate multiple transmissions of a reference signal at multiple frequency locations. The UE may send the transmissions of the reference signal in multiple symbol periods of at least one subframe. The UE may send at least two transmissions of the reference signal in each subframe, e.g., one transmission of the reference signal in each symbol period of a subframe. Each transmission of the reference signal may cover a portion of the bandwidth of the reference signal and may be sent on a set of contiguous subcarriers at a particular frequency location. The multiple transmissions of the reference signal may cover the entire bandwidth of the reference signal. A location estimate for the UE may be determined based on time of arrivals (TOAs) of the reference signal measured by multiple receiver stations. | 05-19-2011 |
20110117925 | METHOD AND APPARATUS FOR ASSISTED POSITIONING IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate reduced complexity network-assisted device positioning in a wireless communication system. As described herein, a mobile device and/or other suitable device can utilize positioning assistance messages received from a location server, a serving network cell, and/or other entities, to assist in position fixing based on reference signals (e.g., positioning reference signals (PRSs)) detected from nearby network cells. Positioning assistance messages as described herein can include, for example, information relating to PRS bandwidths, transmit antenna configurations, and/or other parameters of respective cells from which reference signals are detected by a device during positioning. As further described herein, messaging load can be reduced by providing bandwidth and/or antenna configuration information relative to a given reference cell, such that parameters of non-reference cells that are equivalent to corresponding parameters of the reference cell can be omitted from transmitted positioning assistance data. | 05-19-2011 |
20110128870 | DISTRIBUTED COMPUTATION OF COMMON NORMALIZATION CONSTANT FOR QUANTIZED BEST EFFORT TRAFFIC PRIORITY - Apparatus, systems, devices and methods are provided for Distributed Computation of Common Normalization Constant for Quantized Best Effort Traffic Priority. In certain non-limiting aspects, there may be provided a method for prioritizing traffic in a wireless communication environment, including: providing a quantized priority value for each of one or more data streams associated with a wireless communications node; and determining a relative prioritization for each of the one or more data streams using the quantized priority values and one or more quantized priority values associated with one or more other wireless communications nodes; wherein, the quantized priority values associated with the wireless and other wireless communications nodes are normalized with respect to a reference rate. | 06-02-2011 |
20110128921 | UTILITY MAXIMIZATION SCHEDULER FOR BROADBAND WIRELESS COMMUNICATION SYSTEMS - Certain aspects of the present disclosure relate to a technique of designing a Media Access Control (MAC) scheduler for uplink communication in high rate wireless data systems, such as Long Term Evolution (LTE) wireless communication systems. | 06-02-2011 |
20110130098 | SYSTEMS, APPARATUS AND METHODS FOR DISTRIBUTED SCHEDULING TO FACILITATE INTERFERENCE MANAGEMENT - Systems, methods, apparatus and computer program products for facilitating interference management on a downlink of a wireless communication system are provided. In some embodiments, the method can include determining, by a base station within a cell, a benefit to out-of-cell user equipment when a base station transmits with certain transmission attributes, wherein the transmission attributes are at least one of a transmit power, beamforming vector or multiple input multiple output transmission; determining, by the base station, a benefit to a user equipment within the cell when the base station transmits with certain transmission attributes; and determining, by the base station, the total benefit to the out-of-cell user equipment and to the user equipment within the cell. | 06-02-2011 |
20110130099 | SYSTEMS, APPARATUS AND METHODS FOR DISTRIBUTED SCHEDULING TO FACILITATE INTERFERENCE MANAGEMENT - Systems, methods, apparatus and computer program products for scheduling in a wireless communication system are provided. In some embodiments, the method can include: receiving a buffer status report from user equipment having one or more logical channel groups; configuring a first priority metric and a first prioritized bit rate for at least one of the one or more logical channel groups, wherein the configuring a first priority metric and a first prioritized bit rate for at least one of the one or more logical channel groups is in response to information included in the buffer status report; determining interference at the user equipment; and re-configuring, by the serving base station, the first priority metric and the first prioritized bit rate for the at least one of the one or more logical channel groups in response to determining interference at the user equipment. | 06-02-2011 |
20110149887 | POSITIONING IN THE PRESENCE OF PASSIVE DISTRIBUTED ELEMENTS - Systems and methodologies are described that facilitate transmitting positioning reference signals (PRS) differently for passive distributed elements. PRSs for passive distributed elements can be transmitted over disparate resources than those utilized for PRSs at a related access point, using different symbol sequences, and/or the like. In this regard, wireless devices can differentiate between PRSs from access points and those from passive distributed elements, which can mitigate confusion for processes involving such RSs, such as position determining. Alternatively, passive distributed elements can refrain from transmitting PRSs, and a corresponding access point can indicate to wireless devices to only determine positioning based on PRSs. Thus, the wireless devices can utilize the PRSs transmitted from the access point (and not other reference signals transmitted from the passive distributed element) to determine a position. | 06-23-2011 |
20110158200 | POSITIONING REFERENCE SIGNALS IN A TELECOMMUNICATION SYSTEM - Systems and methods are described to supply positioning reference signal (PRS) in a telecommunication system. A base station supplies a PRS sequence according at least to a time-frequency pattern of modulation symbols, wherein the time-frequency pattern assigns a modulation symbol to each frequency tone in a block of time-frequency resources allocated to transmit PRS. The base station associates a modulation symbol in the time-frequency pattern with a reference symbol in the PRS sequence through a mapping that represents the time-frequency pattern. The PRS sequence is conveyed to user equipment through delivery of a set of modulation symbols established through the mapping. Different time-frequency patterns can be exploited based on time-structure of a radio sub-frame. The user equipment receives the PRS sequence according to at least the time-frequency pattern of modulation symbols and utilizes at least the PRS sequence as part of a process to produce a location estimate. | 06-30-2011 |
20110182251 | CLOSED LOOP ADAPTATION OF DEVICE SCHEDULING PARAMETERS - Systems and methodologies are described that facilitate adapting wireless device scheduling parameters at least in part by adjusting prioritized bit rates (PBR) of one or more logical channels. The PBRs can be adjusted according to feedback from a media access control layer scheduler or a radio link control layer regarding resource allocations to one or more wireless device, served rate for one or more wireless device, and/or the like. Adjusting the PBRs based on the feedback can increase likelihood that data can be transmitted over substantially all or a specified set of logical channels. Moreover, PBRs can be modified for specific wireless devices based further on resource allocations thereto. Furthermore, PBRs can be modified based at least in part on radio conditions of neighboring access points. | 07-28-2011 |
20110249600 | COMBINING TRANSMISSION WITH INCREMENTING FIELDS - Chase combining gains for receiving a scrambled broadcast channel can be achieved even when a portion of each received channel coded transmission contains a portion that varies. A set of possible difference values for this varying portion, such as for a system frame number, provides hypotheses, each having a corresponding probability. One or more of the hypotheses are selected by rank order for adjusting a corresponding received coded transmission so that two or more channel coded transmissions can be combined and blind decoded until one of the hypotheses are confirmed. | 10-13-2011 |
20120014269 | METHODS AND APPARATUS FOR CONTENTION-BASED UPLINK ACCESS IN WIRELESS COMMUNICATION SYSTEMS - Methods and apparatus for contention-based access in a wireless communication system are disclosed. A base station may determine a contention-based resource allocation comprising a subset of available system resources. Information related to the contention-based resources may be sent to a user device. In addition, state information may be provided to the UE. The UE may generate and send a contention-based uplink transmission consistent with the allocated resources and state information. | 01-19-2012 |
20120127985 | ROBUST TRANSMISSION SCHEME FOR WIRELESS NETWORKS - Systems and methods are described that facilitate assigning a predefined manner in which interfering transmissions may be fully or partially orthogonalized, as well as transmission time periods during which the orthogonalization protocol(s) may be employed. Depending on interference conditions, flexible resource reuse may be implemented to mitigate interference without unduly taxing resources. The subject of the innovation may be employed in, for instance, an ad hoc or unplanned/semi-planned wireless communication environment. | 05-24-2012 |
20120184285 | METHODS AND APPARATUSES FOR USE IN PROVIDING POSITIONING ASSISTANCE DATA TO MOBILE STATIONS VIA A SELF-ORGANIZING NETWORK - Techniques are provided which may be implemented using various methods and/or apparatuses to allow a mobile station to receive positioning assistance data that may be used in a signal-based position estimation process. For example, a device at a node of a self organizing network (SON) portion of a communication network may be self-provisioned by establishing and providing selected positioning assistance data to a mobile station. | 07-19-2012 |
20120307698 | TIMING SYNCHRONIZATION METHODS AND APPARATUS - Various methods and apparatus are directed to achieving timing synchronization and propagating timing information pertaining to an external, e.g., non Wi-Fi, timing signal source. In some embodiments, a mobile communications device receives and processes a timing signal, e.g., a first Wi-Fi beacon, which is propagating timing information about an external timing signal from a device which directly received the external timing signal. Thus, a mobile wireless communications device achieves timing synchronization with respect to an external timing signal which it is unable to receive directly. In various embodiments, the mobile communications device may, and sometimes does, further propagate the timing information about the external timing signal, e.g., via a second Wi-Fi beacon signal which it generates and transmits. Synchronization with respect to an external signal source facilitates longer sleep states and decreased power consumption. | 12-06-2012 |
20140334415 | SHORT-TERM INTERFERENCE MITIGATION IN A WIRELESS COMMUNICATION SYSTEM - Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a serving base station may send a message to a terminal to trigger short-term interference mitigation. In response, the terminal may send a message to request at least one interfering base station to reduce interference on at least one resource. Each interfering base station may determine a transmit power level to be used for the at least one resource and may send a pilot at this transmit power level. The terminal may estimate the channel quality of the at least one resource based on at least one pilot received from the at least one interfering base station. The terminal may send information indicative of the estimated channel quality to the serving base station. The serving base station may send a data transmission on the at least one resource to the terminal. | 11-13-2014 |