Abstract:
Disclosed are methods and systems to facilitate use of a single channel for voice communications and of multiple channels for non-voice communications. In particular, a transmitting node may determine that data is to be communicated from the transmitting node to a receiving node and may then make a determination of whether the data is to be communicated as part of a voice communication. If the determination is that the data is not to be communicated as part of a voice communication, then the transmitting node may responsively communicate the data to the receiving node over two or more channels. Whereas, if the determination is that the data is to be communicated as part of a voice communication, then the transmitting node may responsively communicate the data to the receiving node over just one channel rather than communicating the data to the receiving node over two or more channels.
Abstract:
Disclosed is a method and system for adjusting a transport block size used for uplink transmissions from a user equipment device (UE) when engaging in uplink coordinated multipoint service (UL CoMP), under conditions in which a propagation delay to a receiving CoMP base station (BS) exceeds a threshold. Based on predicted delay reported to a serving BS from the CoMP BS, the serving BS may compute a reduced transport block size such that uplink resource blocks transmitted from the UE to the CoMP base station will be temporally under-filled by an amount corresponding to the predicted delay. As received at the CoMP BS, the under-filled resource blocks will not overrun their assigned transmission time interval (TTI), and therefore will not be a source of potential interference.
Abstract:
A method and system for bit-level protection in concurrent downlink coordinated multipoint transmission of bit groups to multiple user equipment devices (UEs) from multiple base stations. Multiple base stations each serving a respective UE and each having a separate bit stream to communicate to its respective served UE will define bit groups across the bit streams, such that each bit group includes at least one bit from each base station's bit stream. Each bit group will be transmitted as a multi-bit data symbol modulated onto a subcarrier frequency. Susceptibility to pairwise confusion between different data symbols due to misidentification of particular bits will be used to determine bit-level protection for various bit positions of the data symbols. Assignment of particular bits of each bit group to particular UEs will include consideration of bit-level protection, such that UEs with lower quality downlink properties will be assigned bits providing higher bit-level protection, and vice versa.
Abstract:
A method and system for managing uplink control channel communication by adjacent base stations. Adjacent base stations may programmatically work with each other to arrange for their respective use of different sub-carriers for scheduling their respective uplink control channel communications. Further, to help make more efficient use of all available sub-carriers, a given base station may schedule uplink traffic channel communication for one or more user equipment devices on the same sub-carriers that a neighboring base station is using for uplink control channel communication if those one or more user equipment devices do not report detecting the neighboring base station above a threshold level.
Abstract:
An improved method for controlling how long a device will occupy a wireless channel, based on consideration of QoS class of communication on the channel. With respect to a communication that the device detects on the channel, the device could determine QoS class by detecting a sequence of energy levels in association with the detected communication, the sequence of energy levels indicating the QoS class. The disclosed method could be applied by a cellular base station to control how long the base station will provide cellular service on the channel, where the channel is also used for other communications such as WiFi communications for instance.
Abstract:
A method and apparatus to help manage communication on a wireless channel. When a neighboring node detects on a wireless channel a ready-to-send (RTS) message from a transmitting node to a receiving node, the neighboring node will set itself to avoid transmission on the channel for a time period but will then determine whether it detects in that time period a further transmission from the transmitting node to the receiving node, related to the data transmission. The further transmission may be a confirmation-to-send (CoTS) message that the transmitting node sends to the receiving node in response to a clear-to-send (CTS) from the receiving node. If the determination is affirmative, then the neighboring node will continue avoiding use of the channel. But if the determination is negative, then the neighboring node will discontinue avoiding use of the channel.