Patent application number | Description | Published |
20090161617 | Communication Systems - A spectrum-assignment method for use in a wireless communication system, wherein the system comprises at least a group of communication apparatuses, and wherein each such communication apparatus has a portion of communication spectrum pre-assigned to it for communication, and wherein one of the communication apparatuses of the group is a leader of the group, the method comprising: on a dynamic basis and within the leader of the group, controlling re-assignments of said spectrum between communication apparatuses of the system involving at least one said communication apparatus of the group in dependence upon spectrum requirements of those communication apparatuses, so as to tend to improve spectrum utilization between those communication apparatuses. | 06-25-2009 |
20090163210 | COMMUNICATIONS SYSTEMS - A method of, and apparatus for, reducing interference inflicted by a first wireless communications system on a second wireless communications system, and a method of, and apparatus for, interacting with a first wireless communications system. | 06-25-2009 |
20090163215 | Communications Systems - A method of reducing interference in a first wireless communications system, the first wireless communications system being operable in use to take part in a spectrum assignment process involving at least a second wireless communications system, the method comprising defining an exclusion zone in proximity to the first wireless communications system, the exclusion zone indicating that any mobile communications apparatus located within the exclusion zone is not permitted to communicate with the second wireless communications system using a portion of spectrum which was pre-assigned to the first wireless communications system and which is currently re-assigned to the second wireless communications system as part of the spectrum assignment process; and dynamically varying the size of the exclusion zone in dependence on a level of interference inflicted on the first wireless communications system. | 06-25-2009 |
20090163221 | Communication Systems - A spectrum-assignment method for use in a wireless communication system, the system comprising at least first and second communication apparatuses each having a portion of communication spectrum pre-assigned to it for communication, the method comprising: on a dynamic basis, controlling re-assignments of said spectrum between the first and second communication apparatuses in dependence upon spectrum requirements of those apparatuses and at least one indicator indicative of interference expected to result from such re-assignments, so as to tend to improve spectrum utilization between the first and second communication apparatuses. | 06-25-2009 |
20090163237 | Communications Systems - A method of reducing interference in a first wireless communications system, the first wireless communications system being operable in use to take part in a spectrum assignment process involving at least a second wireless communications system, the method comprising defining an exclusion zone in proximity to the first wireless communications system, the exclusion zone indicating that any mobile communications apparatus located within the exclusion zone is not permitted to communicate with the second wireless communications system using a portion of spectrum which was pre-assigned to the first wireless communications system and which is currently re-assigned to the second wireless communications system as part of the spectrum assignment process; and varying the local size of a part only of the exclusion zone in dependence on a level of interference inflicted on the first wireless communications system. | 06-25-2009 |
20090190541 | Communication systems - An interference mitigation method in a wireless network in which a plurality of nodes share an available frequency spectrum by performing wireless communication on sub-channels defined within the available spectrum. The nodes are grouped into clusters, each cluster having a leader of the cluster. Preferably, every node in the cluster is a transceiver equipped to act as leader and this leader role is rotated around the cluster. | 07-30-2009 |
20090191813 | Communication systems - A method of controlling spectrum use in a first wireless communications system, the first wireless communications system being operable to take part in a spectrum assignment process involving at least the first wireless communications system and one or more other wireless communications systems, the method comprising
| 07-30-2009 |
20090191888 | COMMUNICATIONS SYSTEMS - Controlling spectrum use in a first wireless communications system which takes part in a spectrum assignment process, in which one of the first wireless communications system and a second wireless communications system assigns a portion of spectrum to the other of the first and second wireless communications system. The first wireless communications system includes a plurality of network elements some or all located within a cell associated with a particular network element of the second wireless communications system. The controlling includes coordinating network elements of the first wireless communications system to identify a portion of spectrum which is either available for assignment from the network elements of the first wireless communications system to the particular network element of the second wireless communications system, or required to be assigned from the particular network element of the second wireless communications system to the network elements of the first wireless communications system. | 07-30-2009 |
20090191889 | COMMUNICATIONS SYSTEMS - A method of controlling spectrum use in a first wireless communications system which is operable to take part in a spectrum assignment process involving a plurality of wireless communications systems including the first wireless communications system, in which spectrum assignment process one of the said wireless communications systems assigns a portion of spectrum to at least one of the other said wireless communications systems. The method comprising effecting an instance of the spectrum assignment process in response to a trigger which is based on network conditions. | 07-30-2009 |
20090191906 | Communication systems - A wireless communication system is comprised of multiple radio access networks—RANs—which at least partly share the same frequency spectrum. Each RAN is provided with a gateway—GW—(GW | 07-30-2009 |
20100008286 | WIRELESS SENSOR NETWORKS - A wireless sensor network having mobile sensors ( | 01-14-2010 |
20120057486 | TO SHORT-RANGE WIRELESS NETWORKS - A wireless sensor network of devices including a sensor and a coordinator:
| 03-08-2012 |
20120063389 | SHORT-RANGE WIRELESS NETWORKS - A wireless network of devices comprising a relay start device, an intermediate device and a relay end device, information being communicated wirelessly in use between the relay start device and the relay end device via the intermediate device, wherein:
| 03-15-2012 |
20120063397 | SHORT-RANGE WIRELESS NETWORKS - The invention relates to a wireless network of devices including a network device and a coordinator; the coordinator comprising transmission and reception means for wireless communication; and the network device comprising transmission means and reception means for wireless communication; and control means operable to selectively cause the device to communicate according to two different channel access schemes, a higher throughput scheme and a lower throughput scheme; wherein a trigger is provided in the network for a switch from the lower throughput scheme to the higher throughput scheme, wherein the trigger is determined taking into account the network device's transmission requirements. The transmission requirements may be based on a network according to the present invention, wherein the transmission requirements are defined based on one or more of the following factors: data waiting in the network device's buffer, emergency status of a device, urgency status of a device and battery level. | 03-15-2012 |
20120071098 | IMPROVEMENTS TO SHORT RANGE WIRELESS NETWORKS - A sensor for use in a wireless sensor network of devices, comprising:
| 03-22-2012 |
20120082036 | WIRELESS SENSOR NETWORKS - A method of allocating resources in a wireless sensor network, the network having functions including medical monitoring of a patient using multiple network devices having sensors, the method including steps of: sensing, by a network device in the network, a life parameter of the patient; recognising the existence of an emergency condition with respect to the parameter; the network device sending a request for streaming towards a coordinator of the network; the coordinator receiving (S | 04-05-2012 |
20120089370 | BODY AREA NETWORKS - A method of declaring an emergency condition in a wireless sensor network, the wireless sensor network comprising a plurality of devices ( | 04-12-2012 |
20120092155 | BODY AREA NETWORKS - A method of operating a wireless sensor network having a plurality of network devices including sensors ( | 04-19-2012 |
20120106397 | IMPROVEMENTS TO BODY AREA NETWORKS - A method of performing communications of network devices ( | 05-03-2012 |
20120184310 | Communications Systems - A method of controlling spectrum use in a first wireless communications system, the first wireless communications system being operable to take part in a spectrum assignment process involving at least the first wireless communications system and one or more other wireless communications systems, the method comprising in a single instance of the spectrum assignment process, exchanging a first portion of spectrum for a second, different portion of spectrum, by assigning the first portion of spectrum from the first wireless communications system to the one or more other wireless communications systems and accepting the assignment of the second portion of spectrum from the one or more other wireless communications systems to the first wireless communications system. | 07-19-2012 |