摘要:
The invention allows flexible disabling/enabling of cross-carrier scheduling in carrier-aggregated wireless data transmission. In response to detecting a predetermined disabling indication of cross-carrier scheduling of received carrier aggregated wireless data transmission, the disabling indication targeting subframes allocated to uplink in a first component carrier transmitted from a cross-carrier scheduling cell and to downlink in a second component carrier transmitted from a cross-carrier scheduled cell: a downlink control region in the targeted subframes in the second component carrier is monitored for uplink/downlink grants; and in response to detecting an uplink/downlink grant, the detected uplink/downlink grant is utilized in uplink/downlink scheduling of the targeted subframe in the second component carrier.
摘要:
There is provided a mechanism for controlling communications conducted via different frequency bands or communication spectrums. When a communication via a first communication path, for example an unlicensed or white space communication spectrum, is to be established, e.g. for offloading traffic from a second communication path, for example a licensed cellular communication spectrum, a preamble transmission command is generated and transmitted from a communication network control element, such as an eNB, via the second communication path to a communication element, such as a UE. By means of the preamble transmission command, the transmission of a preamble signal by the receiving communication element on the first communication path with predetermined communication resources is triggered. Based on a receipt or non-receipt of the preamble signal via the first communication path, the communication network control element is able to determine that the communication element can establish a connection on the first communication path, for example the unlicensed or white space communication spectrum.
摘要:
A method, apparatus and computer program product are provided for minimizing power consumption in a macro cell. A method and apparatus may establish a dual connection with a local area access point of a local area cell and a macro access point of a macro cell. The method and apparatus may also enter a power save mode in a macro cell by utilizing a first discontinuous reception (DRX) pattern in the macro cell in response to establishing the dual connection. The first DRX pattern may include a designated DRX active time period in which a communication device is designated to be active. The DRX active time period is aligned with a time period of a paging occasion of the apparatus.
摘要:
It is provided a method, comprising: signaling, to a terminal device, to turn into a low power connected mode; inhibiting signaling, to the terminal device, to turn into an idle mode; saving a parameter used to connect to the terminal device in a normal connected mode different from the low power connected mode before signaling to turn into the low power connected mode.
摘要:
A method, apparatus and computer program product are provided for enabling provision of an additional special subframe configuration to one or more communication devices. A method and apparatus may generate one or more parameters defining a new special subframe configuration associated with downlink communications. The new special subframe configuration is generated in addition to one or more other special subframe configurations. The new special subframe configuration includes information indicating a plurality of downlink symbols that exceed a number of downlink symbols of one of the other special subframe configurations which reduces overlap between a first system and a second system, the plurality of downlink symbols minimize interference between the first and second systems and increases utilization of resources. The method and apparatus may provide a message to one or more communication devices to enable at least a first subset of the communication devices to detect the new special subframe configuration.
摘要:
There are provided measures for uplink configuration and transmission control in inter-site carrier aggregation. Such measures may exemplarily comprise measures for controlling configuration of a terminal device for an inter-site carrier aggregation mode, in which carriers from a macro cell and a micro cell are aggregated for uplink communication, with a configuration of uplink control information for the macro cell located at a first site and a configuration of uplink control information for the micro cell located at a second site, and/or measures for controlling transmission of a terminal device in the inter-site carrier aggregation mode with a handling of concurrent uplink transmissions at the terminal device.
摘要:
A method, apparatus and computer program product are provided to facilitate the determination of the timing advances of each of a plurality of component carriers by triggering the determination of the timing advances in response to certain pre-defined events that are indicative of a need for the timing advance to be determined. A method may include determining that a pre-defined event has occurred and triggering a determination of a timing advance for a second component carrier relative to a timing advance of a first component carrier based upon occurrence of the predefined event. In this regard, both the component carriers are concurrently allocated to a mobile terminal. The method may also utilize the timing advance to synchronize communications on the second component carrier between the mobile terminal and a network. A corresponding apparatus and computer program product may also be provided.
摘要:
A method, apparatus and computer program product are provided facilitating flexible time sharing among systems. A method and apparatus may generate a secondary component carrier transmission plan including planned on and off durations. The planned on durations correspond to a time period for an apparatus and devices to communicate via an unlicensed band of the secondary component carrier. The planned off durations correspond to a time interval in which the devices may deactivate from the unlicensed band or remain disconnected from the unlicensed band. The method and apparatus may also enable provision of the plan to the devices via a licensed band of a primary component carrier and detecting a medium of the unlicensed band prior to the expiration of the time period to determine whether the medium is available in order to decide whether to turn on transmissions to the unlicensed band after one of the planned off durations.
摘要:
Methods, apparatus and computer program products provide channel state information (CS1) measurement and reporting for a segment carrier in certain situations. An apparatus such as a base station may determine whether CSI is needed for a channel of a segment carrier comprising a segment portion and a contiguous bandwidth extension of a backward compatible carrier utilized by a base station for wireless communications with a mobile terminal. In response to determining that CSI is needed, the apparatus configures the mobile terminal to communicate channel state information from the mobile terminal to the base station. In other embodiments, an apparatus such as a mobile terminal is configured to receive configuration data indicating whether CSI is to be measured by the mobile terminal, and measuring the CSI and communicating the CSI to the base station in response to the configuration data.
摘要:
Systems and techniques for managing the use of industrial-scientific-medical bands for cellular network communication. An apparatus comprises a processing system and a memory storing a set of program instructions. The processing system is configured to cause the apparatus to receive channel information from a UE reporting the control of an industrial-scientific-medical (ISM) band channel by the UE and cause the apparatus to schedule a communication session with the UE over the channel, with the channel being configured and activated as an ISM secondary component carrier (SCC). The apparatus may further request one or more user equipments (UEs) to report their wireless fidelity (WiFi) capability and request user equipments having WiFi capability to compete for the wireless medium and report occupation of the wireless medium in the form of a request to send command, to which the apparatus responds with a clear to send command.