Facilitating assignment of physical cell identifier under technological and operational constraints provided herein. Operations of a system include identifying a first group of network equipment that includes a first relationship status and a second group of network equipment that includes a second relationship status different than the first relationship status. The operations also can include determining a first assignment of first identifiers of a group of identifiers for the first group of network equipment based on a first application of first assignment conflicts. Further, the operations can include determining a second assignment of second identifiers of the group of identifiers for the second group of network equipment based on a second application of second assignment conflicts. In an example, determining of the first assignment of first identifiers includes resolving module-k conflicts among the first group of network equipment.

A process receives performance parameter measurements associated with multiple cell sectors of a group of multiple Remote Radio Units (RRUs) and determines a first set of cell sectors of the multiple cell sectors to include in a first cell sector cluster based on the measured performance parameters. The process configures connections, between the first set of cell sectors included in the first cell sector cluster and a first Baseband Unit (BBU) of multiple BBUs of a Centralized Radio Access Network (CRAN) hub, such that the first BBU processes traffic to and from the first set of cell sectors included in the first cell sector cluster.

A process receives performance parameter measurements associated with multiple cell sectors of a group of multiple Remote Radio Units (RRUs) and determines a first set of cell sectors of the multiple cell sectors to include in a first cell sector cluster based on the measured performance parameters. The process configures connections, between the first set of cell sectors included in the first cell sector cluster and a first Baseband Unit (BBU) of multiple BBUs of a Centralized Radio Access Network (CRAN) hub, such that the first BBU processes traffic to and from the first set of cell sectors included in the first cell sector cluster.

The present invention provides methods and apparatus for implementing spatial multiplexing in conjunction with the one or more multiple access protocols during the broadcast of information in a wireless network. One example includes transmitting a first and a second data signal to a remote unit from a respective first and a second spatially separate antenna of a base station so that the first and second data signals have a first spatial configuration, determining that the first and the second data signals are not spatially separated by the remote unit, reconfiguring the (spatial multiplexing logic 104) spatial configuration of the first and second data signals to a second spatial configuration, and transmitting a third and fourth data signal to the remote unit from a second different antenna configuration according to the second spatial configuration.

The present invention provides methods and apparatus for implementing spatial multiplexing in conjunction with the one or more multiple access protocols during the broadcast of information in a wireless network. One example includes transmitting a first and a second data signal to a remote unit from a respective first and a second spatially separate antenna of a base station so that the first and second data signals have a first spatial configuration, determining that the first and the second data signals are not spatially separated by the remote unit, reconfiguring the (spatial multiplexing logic 104) spatial configuration of the first and second data signals to a second spatial configuration, and transmitting a third and fourth data signal to the remote unit from a second different antenna configuration according to the second spatial configuration.

Dynamic frequency selection (DFS) is often a requirement for a wireless local area network (WLAN) apparatus to prevent the apparatus from interfering with other systems that have a priority to a radio frequency (RF) channel. When DFS is executed, the WLAN apparatus ceases WLAN operations on the channel and searches for an open channel to resume WLAN operations. Often a WLAN apparatus misinterprets signals from another system as operating on the channel when actually the received signals are signals leaked into the channel from a system transmitting on a different channel. Presented herein are methods and apparatuses for preventing unnecessary DFS operations resulting from misinterpreted signals through the use of a signal to noise ratio determined from a pulse spectral density of the received signal.

Various communication devices may benefit from network sharing. For example, network sharing may be beneficial for long term evolution on unlicensed band (LTE-U) and/or licensed-assisted access (LAA) cells operating on an unlicensed spectrum according to the third generation partnership project. Further, LTE enhancements may be implemented for LAA to unlicensed spectrum, including LTE-U. A method may include preparing information related to a carrier and/or cell operating on a non-licensed spectrum. The method may also include providing, from a network element operating on a licensed spectrum to a user equipment, the information related to the carrier and/or cell operating on the non-licensed spectrum.

Disclosed is a method and system for managing coverage area changes using base station signaling. The method may involve a first base station increasing the distance of coverage of the first base station on a first carrier frequency such that the extended coverage extends to a coverage area of a second base station on the first carrier frequency. The second base station may also be providing the coverage area on a second carrier frequency. The method may also involve causing one or more UEs being served by the second base station on the second frequency to prioritize operating on the first carrier frequency of the second base station over operating on the second carrier frequency of the second base station.

Disclosed is a method and system for managing coverage area changes using base station signaling. The method may involve a first base station increasing the distance of coverage of the first base station on a first carrier frequency such that the extended coverage extends to a coverage area of a second base station on the first carrier frequency. The second base station may also be providing the coverage area on a second carrier frequency. The method may also involve causing one or more UEs being served by the second base station on the second frequency to prioritize operating on the first carrier frequency of the second base station over operating on the second carrier frequency of the second base station.

A method and an apparatus for acquiring channel information in a polarization division duplex system. An uplink signal transmitted from a terminal is received, the uplink signal indicating that a null subcarrier is disposed in a first subcarrier overlapped with a second subcarrier including a downlink pilot signal, and a self-interference channel is estimated by using a signal received from the null subcarrier. A signal corresponding to the null subcarrier from the uplink signal is removed, and channel information is acquired by estimating the uplink channel based on estimation results of the self-interference channel and a pilot signal included in the uplink signal from which the null subcarrier is removed.