Method and system for controlling interference between access nodes operating on adjacent TDD carriers with different TDD configurations

    公开(公告)号:US11464021B1

    公开(公告)日:2022-10-04

    申请号:US17248800

    申请日:2021-02-08

    Abstract: A first access node that is operating on a first TDD carrier having a first TDD configuration will determine that a second TDD carrier on which a proximate second access node is operating has a different, second TDD configuration, such that there is at least one time interval in which the first TDD carrier is downlink concurrently with the second TDD carrier being uplink. In response to at least this determination, the first access node will then transition to a mode in which, during the time interval, the first access node will operate with reduced transmission power on a frequency portion of the first TDD carrier that is closest in frequency to the second TDD carrier. Further, the first access node could allocate the lower-transmission-power frequency portion for use in transmission to served devices deemed to be in at least predefined threshold high quality coverage of the first access node.

    Codec-time aware scheduler for voice-over-IP

    公开(公告)号:US10652915B1

    公开(公告)日:2020-05-12

    申请号:US16182209

    申请日:2018-11-06

    Abstract: Disclosed are methods and systems for adjusting allocation of uplink (UL) and downlink (DL) air interface resources to user equipment devices (UEs) in a wireless communication system configured for dynamic allocation of relative amounts UL and DL time division duplex (TDD) air interface resources. The wireless communication system may determine usage demand for UL air interface resources relative to DL air interface resources as a function of time of day. Then, based on the usage demand, a schedule may be created for assigning a ratio of UL TDD allocation to DL TDD allocation. Finally, dynamic TDD allocation may be applied to set relative amounts of UL and DL air interface time for UEs served by the wireless communication system according to the schedule, instead of applying unscheduled dynamic TDD allocation of relative amounts of UL and DL air interface time.

    Contiguously clustering of resource allocation in response to near-frequency communication with different subcarrier spacing

    公开(公告)号:US11206547B1

    公开(公告)日:2021-12-21

    申请号:US16599916

    申请日:2019-10-11

    Abstract: When access nodes provide collocated service on overlapping carriers with different subcarrier spacing than each other, at least one of the access nodes could be configured to cluster its respective allocation of air-interface resources at an end of the frequency-overlap region, and a single guard band could then separate that clustered resource allocation from the remainder of the frequency-overlap region in which the other access node could allocate resources. In an example implementation for instance, the access nodes could be configured to cluster their respective concurrent allocation of resources at different respective ends of the frequency-overlap region so as to help maximize frequency width between transmission in the frequency-overlap region on one of the carriers with one subcarrier spacing and transmission in the frequency-overlap region on the other carrier with the other subcarrier spacing.

    Method and system for controlling interference between access nodes operating on adjacent TDD carriers with different TDD configurations

    公开(公告)号:US10966213B1

    公开(公告)日:2021-03-30

    申请号:US16530495

    申请日:2019-08-02

    Abstract: A first access node that is operating on a first TDD carrier having a first TDD configuration will determine that a second TDD carrier on which a proximate second access node is operating has a different, second TDD configuration, such that there is at least one time interval in which the first TDD carrier is downlink concurrently with the second TDD carrier being uplink. In response to at least this determination, the first access node will then transition to a mode in which, during the time interval, the first access node will operate with reduced transmission power on a frequency portion of the first TDD carrier that is closest in frequency to the second TDD carrier. Further, the first access node could allocate the lower-transmission-power frequency portion for use in transmission to served devices deemed to be in at least predefined threshold high quality coverage of the first access node.

    Use of orthogonal coding to help facilitate multi-layer transmission of user-plane data from closely spaced antennas

    公开(公告)号:US10790936B1

    公开(公告)日:2020-09-29

    申请号:US16237953

    申请日:2019-01-02

    Abstract: Disclosed is a mechanism to help a user equipment device (UE) transmit multiple distinct bit streams concurrently to a base station with reduced risk of interference. The UE will orthogonally encode the multiple distinct bit streams using orthogonal binary codes to produce orthogonally encoded bit streams, and the UE will add the orthogonally coded bit streams together to produce a resulting bit stream and will transmit that resulting bit stream on an antenna path to the base station. Upon receipt of the transmitted bit stream, the base station could then apply the same orthogonal binary codes to the bit stream in order to extract the underlying multiple distinct bit streams.

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