Patent application number | Description | Published |
20080227488 | TXOP duration adaptation for dual radio devices - Transmission opportunity (TXOP) duration is adapted for a wireless local area network (WLAN) transceiver in a dual radio wireless device based on an end of free time indication associated with a wireless wide area network (WWAN) transceiver within the same device. In this manner, the occurrence of collisions between WLAN communication activity and WLAN communication activity within the dual radio device may be reduced or eliminated. | 09-18-2008 |
20080232339 | Adapting TXOP requests for multi-radio platforms - A first radio in a wireless network may request a transmit opportunity (TXOP) of a certain duration, with the duration being based a likelihood that a TXOP of that duration would cause interference with a co-located second radio. The duration may be dynamically adjusted based on the likelihood of such interference. | 09-25-2008 |
20080242329 | Methods and arrangements for link rate adaptation in multi-radio co-existence platforms - Methods and arrangements for link rate adaptation in multi-radio co-existence platforms (MRPs) are contemplated. Embodiments include transformations, code, state machines or other logic to determine an overlap between receiving by a wireless device of the MRP and transmitting by other of the wireless devices of the MRP and to select a link rate of the wireless device of the MRP based upon the determining an overlap. The embodiments may also include communicating the determined link rate to a wireless device transmitting to the wireless device of the MRP. Embodiments may also include selecting a previously used link rate if the receiving overlaps the transmitting. Embodiments may also include basing the link rate upon an overlapping or non-overlapping Signal-to-Interference-Plus-Noise-Ratio depending on the relative amounts of overlapping and non-overlapping. | 10-02-2008 |
20080247367 | SYSTEMS AND METHODS FOR SCHEDULING TRANSMISSIONS FOR COEXISTENCE OF DIFFERING WIRELESS RADIO PROTOCOLS - Embodiments of systems and methods for Bluetooth and WiMAX coexistence are generally described herein. Other embodiments may be described and claimed. In some embodiments systems and methods are described to determine a temporal reference associated a frame, and then align another wireless frame with that temporal reference. Once aligned, transmissions and receptions in one wireless frame may be arranged to not temporally overlap with transmissions or reception the other wireless frame. | 10-09-2008 |
20080247445 | ARCHITECTURE AND METHODS FOR COEXISTENCE OF WIRELESS RADIOS HAVING DIFFERING PROTOCOLS - Embodiments of systems and methods for the coexistence of wireless radios having differing protocols are generally described herein. Other embodiments may be described and claimed. In some embodiments systems and methods for synchronizing clocks between two radios, and using a signal to notify one of the radios to refrain from transmitting for a timeperiod are described. | 10-09-2008 |
20090003293 | Accounting for map parsing delay to enable coexistence of multiple radios - In general, in one aspect, the disclosure describes an apparatus that includes a first radio to communicate with a first wireless network and a second radio to communicate with a second wireless network. The first wireless network transmits a map defining locations within an assigned spectrum data is to be communicated therebetween. An earliest possible location defined in map is such that the map can be parsed within the time it would take to get to the earliest possible location so that the radio can be turned off after receiving the map until the location defined in the map, and the second radio is active when the first radio is not. | 01-01-2009 |
20090003303 | TECHNIQUES FOR COEXISTENCE-AWARE RESOURCE ALLOCATION IN WIRELESS NETWORKS - An embodiment of the present invention provides a method, comprising using MAC coordination between a plurality of co-located radios to resolve co-located multi-radio co-existence at the MAC layer. | 01-01-2009 |
20090003307 | MULTI-RADIO WIRELESS COMMUNICATION DEVICE METHOD FOR SYNCHRONIZING WIRELESS NETWORK AND BLUETOOTH COMMUNICATIONS - Embodiments of a multi-radio wireless communication device and methods for synchronizing wireless network and Bluetooth (BT) communications are generally described herein. Other embodiments may be described and claimed. In some embodiments, a BT radio module adjusts a master clock signal by a predetermined step size before each subsequent BT transmission in response to a frame sync pulse from a wireless network radio module to reduce a time difference between subsequent frame sync pulses and synchronization reference points of BT slots. | 01-01-2009 |
20090042555 | Method and apparatus for antenna allocation on a multi-radio paltform - In a multi-radio wireless device, a first radio and a second radio share a plurality of antennas. A MAC coordination engine may coordinate the activities of the first and second radios to facilitate the allocation of antennas to the radios. In at least one embodiment, the second radio is given priority over the first radio in the allocation of antennas. When the first radio desires to communicate, a number of antennas that is available for use may be determined. It may then be determined whether the communication should be permitted to proceed given the number of available antennas. | 02-12-2009 |
20090061849 | REDUCING CO-INTERFERENCE ON A MULTI-RADIO PLATFORM - A wireless communications device in a first network with contention-based access may send a special frame to one or more other devices in the first network, informing them that it will not be available to receive any transmissions during a specified time period. The frame may also specify a delay period, indicating when the period of unavailability will start. When the device sending the special frame also has a co-located radio that operates in a second network that uses centrally-controlled scheduling, this special frame may be used to prevent other devices in the first network from sending it any transmissions while the co-located radio is communicating in the second network, thereby reducing the chance of interference between the two co-located radios. | 03-05-2009 |
20090080401 | FLEXIBLE STARTING TIME SCHEDULING ALGORITHM FOR BITMAP COEXISTENCE PROTECTION - A flexible start time (FST) scheduling algorithm operable at a base station is disclosed, to allocate resource in the time domain based on coexistence period bitmap (CBP) feedback gathered from multi-radio user terminals. The algorithm analyzes traffic load distribution in the wireless neighborhood and determines an optimum starting time of the CBP operation for the current user. | 03-26-2009 |
20090086712 | Minimizing mutual interference for multi-radio co-existence platforms - In general, in one aspect, the disclosure describes a method that includes selecting an offset between start of communications of a first radio in a multi-radio platform (MRP) and start of communications of a second radio in the MRP. Synchronizing clocks of the fist radio and the second radio to maintain the offset. Determining safe zones within the communications of the second radio based on configuration of the first radio and the second radio and the selected offset. The safe zones are locations that minimize conflicts between receiving operations of the first radio that are at fixed locations and transmitting operations of the second radio and transmitting operations of the first radio that are at fixed locations and receiving operations of the second radio. | 04-02-2009 |
20090088177 | COLLOCATED RADIO COEXISTENCE METHOD - A collocated radio coexistence method is disclosed. The method operates in the frequency domain to protect WiMAX downlink traffic from narrow band interference (e.g. harmonics) caused by other collocated radios, such as GSM 800 MHz, operating simultaneously with an 802.16-capable (WiMAX) radio in a multiple radio coexistence platform (MRP). | 04-02-2009 |
20090144597 | ENCODING/DECODING TECHNIQUE FOR REBROADCASTING LOST PACKETS - When retransmitting lost packets of data to multiple devices in a wireless network, the original sequence of packets containing all the lost packets may be encoded into a smaller number of packets for the retransmission. These encoded packets may be collectively addressed to all the intended receiving devices through broadcast or multicast addressing. These encoded packets may then be selectively decoded by the receiving devices, using the successfully received previous packets as part of the decoding process. Repetitive exclusive OR algorithms may be used for encoding and decoding. | 06-04-2009 |
20090147756 | COORDINATING COMMUNICATIONS AMONG WIRELESS PERSONAL AREA NETWORK DEVICES - Embodiments of a multi-radio wireless communication device having two or more radio modules are generally described herein. In some embodiments, an initiating link manager may generate and transmit messages to a responding link manager. The messages may include a desired slot offset value and a desired point in time to perform slot adjustment. The responding link manager may return with a message indicating acceptance or nonacceptance of the desired slot offset value. If the responding link manager accepts the desired slot offset value, the message may also include whether the slot adjustment may be implemented at the desired point in time or incrementally. Other embodiments may be described and claimed. | 06-11-2009 |
20120230303 | ARCHITECTURE AND METHODS FOR COEXISTENCE OF WIRELESS RADIOS HAVING DIFFERING PROTOCOLS - Embodiments of systems and methods for the coexistence of wireless radios having differing protocols are generally described herein. Other embodiments may be described and claimed. In some embodiments systems and methods for synchronizing clocks between two radios, and using a signal to notify one of the radios to refrain from transmitting for a timeperiod are described. | 09-13-2012 |