摘要:
A processor for a device, the processor configured to determine a current geographical area for the current device location within which geo-specific spectrum usage data are known; determine a geographical margin for the current geographical area, the geographical margin defining an outer area of the geographical area; and obtain geo-specific spectrum usage data corresponding to an adjacent geographical area from a location remote to the device when the device location is within the geographical margin.
摘要:
Methods and apparatuses are provided for facilitating determination of available spectrum. A method may include receiving a query originated by a white space device for an indication of available frequency spectrum at a location of the white space device. The method may further include determining whether the location of the white space device is within an area served by a first database. In an instance in which it is determined that the location of the white space device is not within the area served by the first database, the method may additionally include determining a second database and causing access information for the second database to be provided to the white space device. The determined second database may serve an area including the location of the white space device. Corresponding apparatuses are also provided.
摘要:
A central node/database receives from each mth one of a plurality of M user devices at least one of geographic location information of the mth user device and type information of the mth user device. The node/database registers the M user devices to different groups according to at least one of location criteria based on the received geographic location information and type criteria based on the received type information. Then the node/database sends to each mth one of the plurality of M user devices a set of parameters that define a periodic time window that is specific to the group to which the mth user device is registered. The time window restricts times at which the mth user device can access a data source of spectrum use information. Balancing the number of user devices among the groups, spreads database accesses in time and overloads are less frequent and less severe.
摘要:
A method of allocating resources to cells of a cellular communication system comprising the steps of determining a load in at least one of the cells; selecting a resource reuse pattern from a set of resource reuse patterns based on the determined load; allocating resources in accordance with the selected resource reuse pattern.
摘要:
In accordance with an example embodiment of the present invention, a method comprises configuring an autonomous mode for traffic offloading; and indicating the autonomous mode towards at least one terminal, wherein said autonomous mode supports local area radio access connectivity by internet protocols to reduce control from a core network. Related apparatus and computer program product are also described.
摘要:
A central node/database receives from each mth one of a plurality of M user devices at least one of geographic location information of the mth user device and type information of the mth user device. The node/database registers the M user devices to different groups according to at least one of location criteria based on the received geographic location information and type criteria based on the received type information. Then the node/database sends to each mth one of the plurality of M user devices a set of parameters that define a periodic time window that is specific to the group to which the mth user device is registered. The time window restricts times at which the mth user device can access a data source of spectrum use information. Balancing the number of user devices among the groups, spreads database accesses in time and overloads are less frequent and less severe.
摘要:
A macro eNB (MeNB) triggers a small cell (eLA eNB) to transmit a sequence on a second frequency band using a triggering command that indicates a time to transmit the sequence. On a first frequency band the MeNB triggers at least one user equipment UE to detect the sequence on the second band, and this trigger also has a first indication of when the sequence will be transmitted. From a second indication the MeNB receives on the first band from the at least one UE in response to the triggering of the UE the MeNB can determine whether the UE is located proximate to the small cell. The indication may be as little as a single bit indicating whether the UE detected or not the sequence. The first and second bands may be on first and second component carriers that may not be synchronized to one another, and the aperiodic nature of the triggered sequences and detection reports saves UE power.
摘要:
A method includes, in response to a determination one or more quiet periods conflict with specified hybrid automatic repeat request feedback timing, sending one or more indicators to one or more user equipment to indicate to the user equipment to shift the specified hybrid automatic repeat request feedback timing to a shifted hybrid automatic repeat request feedback timing. The method includes communicating hybrid automatic repeat request feedback based on the shifted hybrid automatic repeat request feedback timing. Another method includes receiving at a user equipment one or more indicators indicating to the user equipment to shift specified hybrid automatic repeat request feedback timing to a shifted hybrid automatic repeat request timing, and communicating hybrid automatic repeat request feedback based on the shifted hybrid automatic repeat request timing. Apparatus, computer program product, and computer programs are also disclosed.
摘要:
Provided are methods, corresponding apparatuses, and computer program products for performing spectrum sensing on a spectrum. A method comprises receiving, at a user equipment, information regarding performing spectrum sensing from a base station; performing, based upon the information, the spectrum sensing by the user equipment in an idle mode; and transmitting, by the user equipment out of the idle mode, to the base station a result of the spectrum sensing. With the claimed inventions, transmission interruption caused by non-idle user equipments performing the spectrum sensing would be eliminated.
摘要:
There is a pattern for downlink almost blank sub frames ABSFs for a first network node (e.g., macro eNB) operating in a first component carrier (e.g., PCell). For a user equipment UE operating with the first network node on the first component carrier and also with a second network node on the second component carrier, then either or both of the following are imposed. The UE is scheduled on the first component carrier such that no uplink control information UCI from the UE is scheduled for any uplink subframe in the first component carrier which maps from any of the ABSFs; and the UE is scheduled on the second component carrier such that UCI from the UE is scheduled only for an uplink subframe in the second component carrier which maps from any of the ABSFs. By example, the UCI includes either/or ACKs and NACKs corresponding to data sent downlink to the UE.