Patent application number | Description | Published |
20120314590 | ENHANCED PRECODING FEEDBACK FOR MULTIPLE-USER MULTIPLE-INPUT AND MULTIPLE-OUTPUT (MIMO) - A method for reporting uplink control information (UCI) on a user equipment (UE) is described. A first precoding matrix indicator (PMI) corresponding to a multiple-user multiple-input and multiple-output (MU-MIMO) downlink transmission is generated using a first codebook set. A second PMI corresponding to the MU-MIMO downlink transmission is generated using a second codebook set. The first PMI and the second PMI are sent to an eNode B in a channel state information (CSI) report. | 12-13-2012 |
20130021925 | COORDINATED MULTIPOINT (COMP) TRANSMISSION METHOD SELECTION AND FEEDBACK REQUIREMENTS - A method for configuring coordinated multipoint (CoMP) transmission by an eNode B is described. Feedback information is received from a user equipment (UE). A CoMP transmission measurement set is determined. The CoMP transmission measurement set is sent to the UE. A channel state information (CSI) report of the CoMP measurement set is received from the UE. A CoMP transmission method used for each CoMP transmission point in the CoMP measurement set is selected. | 01-24-2013 |
20130039283 | QUANTIZING RELATIVE PHASE AND RELATIVE AMPLITUDE FOR COORDINATED MULTIPOINT (COMP) TRANSMISSIONS - A method for quantizing a relative phase and a relative amplitude is described. A received symbol is obtained. A relative phase is determined from the received symbol. A relative amplitude is also determined from the received symbol. A quantized relative phase is obtained for the relative phase. A quantized relative amplitude is obtained for the relative amplitude. | 02-14-2013 |
20130073671 | OFFLOADING TRAFFIC TO DEVICE-TO-DEVICE COMMUNICATIONS - Methods and apparatus, including computer program products, are provided for offloading data to D2D communication links. The method may include processing information indicating at least one or more data locations representing at least one or more candidate locations where data is stored; determining at least one or more device locations representing one or more devices accessible by a wireless device-to-device communication link; determining, based on the one or more data locations and the one or more device locations, a local device from which to access the data; and accessing the data at the determined local device. Related apparatus, systems, methods, and articles are also described. | 03-21-2013 |
20130078924 | Frequency Band Selection - There is provided a method including obtaining, by a database entity, a-priori channel occupancy rate information of at least one channel from at least one of an entity of a primary system and an entity of a secondary system, wherein a database of the database entity includes information on white space channels, and availing the channel occupancy rate information to the secondary users in order to assist the secondary user to select a channel from the database. | 03-28-2013 |
20130114491 | Medium Access Control Enhancements - The exemplary embodiments enable setting one or more devices of a wireless communication network to be associated with a one or more groups of a plurality of groups based on at least a device type of the one or more devices, receiving at least one indication that one or more devices have data to send, and allocating, one group at a time, resources to the groups associated with the devices with data to send. Further, receiving a probe message from a network node, the probe message identifying one or more groups set to the device based at least on a device type, sending, information to the node, the information providing an indication that data is required to be sent, and in response to the sending, receiving a resource allocation from the node to send the data, wherein the resource allocation is arranged based on the groups set to the device. | 05-09-2013 |
20130136066 | Medium Access Control Method Enhancement - The exemplary embodiments provide at least a method of receiving, by a node of a wireless communication network, more than one indication of data required to be sent from devices in the network, determining that provisioning resources to send the data in response to each of the more than one indication exceeds at least one threshold, and based on the determining, sending a probe message including a priority constraint to the devices. Further, receiving, at a device of a wireless communication network, a probe message from a network node of the network, the probe message identifying a priority constraint, sending, by the device, an acknowledgement to the probe message, the acknowledgment indicating that the device has data to send which meets or exceeds the priority constraint identified in the probe message, and in response to the acknowledgment, receiving from the network node a resource allocation to send the data. | 05-30-2013 |
20130176998 | Mechanism For Coexistence Between Wireless Networks - In accordance with the exemplary embodiments there is at least a method performed with an apparatus of a wireless communication network including sensing information regarding at least one coexisting network, and sending the information in a header of a media access control frame to a network node of the wireless communication network. In addition, in accordance with the embodiments, there is at least a method performed with an apparatus of a wireless communication network including receiving sensing information regarding at least one coexisting network in a header of a media access control frame from at least one device of the wireless communication network, determining, using at least the sensing information, occupancy information regarding one or more coexisting networks of the wireless communication network, and sending the occupancy information to one or more devices of the wireless communication network. | 07-11-2013 |
20130229959 | METHOD AND APPARATUS FOR GROUP SYNCHRONIZED CHANNEL ACCESS WITH TIM SEGMENTATION - A method includes receiving indications of a wake-up interval assigned to a station and a corresponding group to which the station belongs, wherein all stations assigned to the group are assigned the wake-up interval. The method includes waking the station during the wake-up interval and determining, using at least the indication of the group, whether information received by the station during the wake-up interval corresponds to the group. Another method includes assigning stations to one of multiple groups based on wake-up intervals, in which stations assigned to a group all have a same wake-up interval and each group has a different wake-up interval, sending indications of a corresponding wake-up interval and a corresponding group to each of the stations, and during a interval corresponding to the wake-up interval for a selected group, transmitting the indication of the selected group and associated information meant for the group. | 09-05-2013 |
20130294261 | METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR EFFICIENT TIM COMPRESSION AND DECODING - Method, apparatus, and computer program product embodiments improve power saving in network environments. An example method embodiment comprises: generating in an access point device, a traffic indication map comprising a page bitmap field, a page control field, one or more block bitmap fields, and one or more sub-block bitmaps indicating wireless client devices having buffered data in the access point device available for them; and periodically broadcasting the traffic indication map in a beacon frame to the wireless client devices. | 11-07-2013 |
20130294427 | Method And Apparatus For Signaling Sequence Root - A first access node of a first network utilizes code sequences, assigned to different user devices, to distinguish at least acknowledgements received in parallel or sequentially from those user devices. The first access node determines from received signaling that a root sequence of the code sequences is in use by a second access node of a second network, then changes that root sequence of the code sequences assigned to the different user devices. In certain examples the access nodes are WLAN access points APs and the acknowledgements are received in response to a group probe/poll. In various embodiments the first AP monitors its neighbors' group probes/polls to learn the root sequences/basic service sets in use in those neighbor networks, or the AP's own stations monitor and send the information in neighbor reports. This latter option can be initiated by the stations themselves, or by the AP. | 11-07-2013 |
20130301605 | METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR RESOURCE ALLOCATION FOR SEQUENTIAL/PARALLEL WIRELESS MESSAGES - Method, apparatus, and computer program product embodiments provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: receiving by a wireless client device, a first message from an access point device, the first message comprising information related to resource allocation that at least partly indicates a resource allocation in time-frequency space for the wireless client device; decoding by the wireless client device, the information related to resource allocation, using a connection identifier that identifies the wireless client device within a wireless network managed by the access point device, to obtain the resource allocation in time-frequency space; and transmitting by the wireless client device to the access point device, a second message using the resource allocation in time-frequency space. | 11-14-2013 |
20130336234 | Medium Access Control Method - The exemplary embodiments of the invention relate to at least a method including receiving an indication that a first resource allocation to a device to transmit data was insufficient and there is remaining data to transmit by the device, based at least on information associated with the first resource allocation, determining a second resource allocation for the device, and sending the second resource allocation to the device in order to enable the device to transmit the remaining data. Further, there is a method including sending an indication that a first resource allocation to a device to transmit data was insufficient and there is remaining data to transmit, and in response to the sending, receiving a second resource allocation to the device to enable the device to transmit remaining data, wherein the second resource allocation is based at least on information associated with the first resource allocation. | 12-19-2013 |
20140003414 | METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR RESOLVING HIDDEN NODE IN SYNCHRONIZED DCF BASED CHANNEL ACCESS | 01-02-2014 |
20140071959 | METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR COEXISTENCE OF WIRELESS NETWORKS - Embodiments of the invention provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: receiving by a short-range access point in a basic service set, a beacon from a long-range access point in an overlapping basic service set, indicating a beginning and ending of a first quiet interval for short-range stations associated with the short-range access point; and transmitting by the short-range access point, a broadcast control frame, notifying the long-range access point of a second quiet interval for long-range stations associated with the long-range access point, the broadcast control frame further notifying the short-range stations associated with the short-range access point that they may access and transmit data during the second quiet interval. | 03-13-2014 |
20140126461 | METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR RELAY OPERATION IN WI-FI NETWORKS - Embodiments of the invention provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: determining, by a wireless relay device, a first time window allocated for a first network, allowing first maximum transmit power for packet transmissions; and determining, by the wireless relay device, a second time window allocated for a second network, wherein the second time window is allowed for transmissions also within the first network, but only with second maximum transmit power that is lower than the first maximum transmit power. | 05-08-2014 |
20140153415 | METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR SIGNALING FOR SECTORIZED BEAM OPERATION IN WIRELESS NETWORKS - Method, apparatus, and computer program product embodiments configure channel access windows in overlapping network environments. An example method embodiment comprises: transmitting, by an access node, a measurement request to an associated wireless device, to perform measurements of signals received from other access nodes to which the device is not associated, the device being a member of a group of devices based on transmission by the access node to the device, of a directional beacon frame; receiving from the device, a measurement response comprising information on a directional message with an access node identifier of another access node to which the device is not associated; and determining a time window that may be used by devices that are members of the group, for transferring data between members of the group and the access node, based at least partly on the measurement response. | 06-05-2014 |
20140199991 | METHODS AND APPARATUSES FOR LTE SIGNAL DETECTION AND CLASSIFICATION BY A Wi-Fi RECEIVER - Methods, apparatuses, and computer program products for signal detection and classification are provided. One method includes detecting, by a station, a presence of a signal and classifying the signal according to type. There may be at least three possibilities for the type of signal. The classifying may include performing a composite hypothesis test, such as a generalized likelihood ratio test (GLRT) for the at least three possibilities. | 07-17-2014 |
20140334387 | METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR PROTECTING SHARED TRANSMISSION OPPORTUNITY - Embodiments of the invention provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: receiving, by a first apparatus, a request-to-send frame for a transmission opportunity from a second apparatus; transmitting, by the first apparatus, a first clear-to-send frame for a shared transmission opportunity to the second apparatus; receiving, by the first apparatus, a second clear-to-send frame as response to the first clear-to-send frame from a third apparatus; receiving a data frame from the second apparatus during the shared transmission opportunity; and forwarding the data frame to the third apparatus during the same shared transmission opportunity. | 11-13-2014 |
20140335871 | METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR ENABLING NAV PROTECTION FOR RESTRICTED ACCESS WINDOW - Embodiments of the invention provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: receiving, by a station in an access network, a frame from another station in the access network or from an overlapped access network, indicating time restrictions for reserving a wireless medium, the frame including an indication in a first portion of the frame, indicating the presence of the time restrictions for reserving the wireless medium; and decoding, by the station, at least a second portion occurring after the first portion of the received frame, to determine the time restrictions for reserving the wireless medium, in response to the indication. | 11-13-2014 |
20150063128 | METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR WIRELESS SIGNALING - Embodiments of the invention provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: storing, by a wireless device, a prior channel estimate that was previously transmitted to another wireless device in a wireless network; receiving, by the wireless device, a request message from the other device, to determine a distortion between a current channel estimate and the prior channel estimate and compare the determined distortion to a distortion threshold value, the request message being a broadcast request message or a measurement request message and the distortion value being either included in the request message, received in another message, or a preconfigured value; determining, by the wireless device, the distortion between the current channel estimate and the prior channel estimate and comparing the determined distortion to the distortion threshold value; and transmitting, by the wireless device, one or more parallel or sequential messages to the other device, indicating presence of the determined distortion greater than the distortion threshold value or indicating an inability to determine a distortion in channel estimates. | 03-05-2015 |
20150071180 | COMMUNICATION EFFICIENCY - There is provided a method, comprising: receiving, by a target node of a wireless access network, a signal from a first source node; determining the angular sector in which the first source node is located with respect to the target node; responding to the signal by both transmitting a first message omni-directionally and transmitting a second message directionally towards the angular sector; and establishing a first resource reservation on a frequency channel at least partly on the basis of transmitting the first message and the second message, wherein the first resource reservation is for performing directional data transfer with the first source node. | 03-12-2015 |
20150071262 | Method and Apparatus for Signaling That Stations are Awake and Ready to Receive Data - A method, apparatus and software configured to compile a traffic indication message indicating downlink traffic is waiting for a plurality of users; and only for each nth ones of the users for which a response to the traffic indication message is received, the response identifying the nth user in a time period corresponding to a portion of the traffic indication message which indicates downlink traffic is waiting for that user, schedule the downlink traffic in each nth slot corresponding to the time period. A method, apparatus and software configured to determine that a received traffic indication message indicates downlink traffic is waiting for a particular user; map a portion of the traffic indication message, that indicates the downlink traffic is waiting for the particular user, to an uplink time period; and send, in the mapped uplink time period, a response indicating that the particular user is awake. | 03-12-2015 |
20150078259 | Interference Avoidance between Overlapping Wireless Networks - This document discloses a solution for reducing interference between wireless networks. According to an aspect, a method comprises: acquiring, by an access node of a first wireless network from at least one node of the first wireless network, information on at least one interfering node of a second wireless network; generating, by the access node, mapping information between the node of the first wireless network and said at least one interfering node; and causing, by the access node, transmission of the mapping information to another access node of the second wireless network. | 03-19-2015 |