Abstract: Aspects of the disclosure relate to a selection scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network to identify which users to schedule simultaneously during the same time slot. For downlink communications and a particular frequency wholeband or sub-band, the scheduler can determine downlink channel information using uplink channel information for channels between base stations and UEs. The scheduler can then determine a strength of the channels using the downlink channel information, order the UEs using a fairness metric based on the channel strengths, and compute one or more QR decompositions to identify whether a spatial dimension of a UE is roughly or approximately orthogonal to spatial dimension(s) of other UEs selected to be served during a time slot being scheduled. If the spatial dimensions are roughly or approximately orthogonal, the scheduler selects the UE to be served at the same time as other UEs already selected.

Abstract: Techniques are described for wireless communication at a wireless device. One method includes identifying a priority of the wireless device for a transmission interval of a radio frequency spectrum band shared by a plurality of network operating entities; identifying an absence of a predetermined transmission type in each of a number of clear channel assessment (CCA) slots of the transmission interval, in which each of the number of CCA slots is associated with a higher priority than the identified priority of the wireless device; and communicating over the radio frequency spectrum band based at least in part on the identified absence of the predetermined transmission type in each of the number of CCA slots associated with the higher priority than the priority of the wireless device.

Abstract: Aspects of this disclosure relate to a time-division duplex (TDD) multiple-input multiple-output (MIMO) system that includes a plurality of nodes. The plurality of nodes collectively includes antennas divided into groups. Reference signals can be transmitted from each group of antennas to one or more other groups of antennas during respective time slots. Channel estimates can be generated based on the received reference signals. The channel estimates can be jointly processed to generate calibration coefficients. Each calibration coefficient can represent a ratio associated with a transmit coefficient and a receive coefficient. Example algorithms for the joint processing are disclosed.

Abstract: Aspects of the disclosure relate to an active set management scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network that minimizes capacity and interference issues. For example, the scheduler can initially group each base station into a separate active set. The scheduler can then analyze each active set to determine whether the active set is a good or bad based on the level of interference in and the number of MIMO receive dimensions available in the respective active set. If the scheduler determines that an active set is a bad, the scheduler can determine a set of metrics that each represent a capacity and link quality that would result if the bad active set is combined with another active set. Based on the set of metrics, the scheduler can combine the bad active set with another active set, and repeat this process until no bad active sets remain.

Abstract: Aspects of this disclosure relate to a user equipment that includes a transceiver that can operate in at least a traffic mode and a virtual network element mode. In the traffic mode, the transceiver can process a received downlink radio frequency signal and transmit an uplink radio frequency signal. The transceiver can couple a receive path to a transmit path in an analog domain in the virtual network element mode. In the virtual network element mode, the transceiver can, for example, perform functions of a network repeater or a network transmit-receive point.

Abstract: Aspects of this disclosure relate to pair of wireless communication devices wirelessly communicating with a network system in a coordinated manner. A secondary wireless communication device can wirelessly communicate part of a multiple-input multiple-output (MIMO) transmission associated with a primary wireless communication device (i) with the primary wireless communication device via the peer-to-peer link and (ii) with the network system via a cellular link. The secondary wireless communication device can enable the primary wireless communication device to communicate with the network system at a higher data rate and/or at a higher MIMO rank.

Abstract: Aspects of the disclosure relate to a selection scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network to identify which users to schedule simultaneously during the same time slot. For downlink communications and a particular frequency wholeband or sub-band, the scheduler can determine downlink channel information using uplink channel information for channels between base stations and UEs. The scheduler can then determine a strength of the channels using the downlink channel information, order the UEs using a fairness metric based on the channel strengths, and compute one or more QR decompositions to identify whether a spatial dimension of a UE is roughly or approximately orthogonal to spatial dimension(s) of other UEs selected to be served during a time slot being scheduled. If the spatial dimensions are roughly or approximately orthogonal, the scheduler selects the UE to be served at the same time as other UEs already selected.

Abstract: Wireless communication systems and methods related to service advertising and discovery with dynamic spectrum use are provided. A user equipment (UE) receives, from a first wireless communication device, a network information signal in a spectrum. The UE receives, from a second wireless communication device, a service advertising signal based on at least a synchronization to the network information signal. The service advertising signal indicates an availability of a service. The UE transmits, to the second wireless communication device, a request for the service. The first wireless communication device and the second wireless communication device are associated with different operating entities of the spectrum.

Abstract: Aspects of this disclosure relate to user equipment assisted multiple-input multiple-output (MIMO) downlink configuration. Features are described for a user equipment determination of a desired transmission mode and/or active set of serving nodes for wireless communication service(s). The user equipment may submit a request for the desired mode and/or nodes to a network controller such as a baseband unit. The user equipment may subsequently receive a configuration for the requested wireless communication service(s).

Abstract: Aspects of the disclosure relate to an active set management scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network that minimizes capacity and interference issues. For example, the scheduler can initially group each base station into a separate active set. The scheduler can then analyze each active set to determine whether the active set is a good or bad based on the level of interference in and the number of MIMO transmit dimensions available in the respective active set. If the scheduler determines that an active set is a bad, the scheduler can determine a set of metrics that each represent a capacity and link quality that would result if the bad active set is combined with another active set. Based on the set of metrics, the scheduler can combine the bad active set with another active set, and repeat this process until no bad active sets remain.

Abstract: Aspects of this disclosure relate to cooperative multiple-input multiple-output (MIMO) downlink scheduling. Features are described for scheduling transmissions within a MIMO network to efficiently allocate resources considering the needs and/or characteristics of devices served by the network. The downlink mode or active set may be scheduled based at least in part on the channel state information and additional network system information detected by or otherwise available to the scheduling device.

Abstract: Aspects of this disclosure relate to local breakout. A network node can receive remote downlink traffic from a remote network, receive local downlink traffic from a local resource, aggregate at least the remote downlink traffic with the local downlink traffic based on one or more filters stored in memory of the network node, and route the aggregated downlink traffic to a wireless communication device. The remote downlink traffic can be associated with a first application of the wireless communication device, and the local downlink traffic can be associated with a second application of the wireless communication device. The network node can be a local gateway in certain embodiments. The network node can steer uplink traffic steering by filtering uplink traffic associated with the wireless communication device into local uplink traffic and remote uplink traffic based on at least one filter for filtering traffic stored in the memory.

Abstract: Aspects of the disclosure relate to an active set management scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network that minimizes capacity and interference issues. For example, the scheduler can initially group each base station into a separate active set. The scheduler can then analyze each active set to determine whether the active set is a good or bad based on the level of interference in and the number of MIMO receive dimensions available in the respective active set. If the scheduler determines that an active set is a bad, the scheduler can determine a set of metrics that each represent a capacity and link quality that would result if the bad active set is combined with another active set. Based on the set of metrics, the scheduler can combine the bad active set with another active set, and repeat this process until no bad active sets remain.

Abstract: Aspects of this disclosure relate to distributed multiple-input multiple-output (MIMO) downlink configuration. Features are described for a network controller (e.g., baseband unit) to receive one or more requests including a desired transmission mode and/or active set of serving nodes for wireless communication service(s) for user equipment. The baseband unit may determine an optimal configuration in consideration of the desired parameters along with other network information. The network controller may then transmit one or more configuration messages via the network to optimally allocate resources distributed within the network.

Abstract: Aspects of this disclosure relate to pair of wireless communication devices wirelessly communicating with a network system in a coordinated manner. A secondary wireless communication device can wirelessly communicate part of a multiple-input multiple-output (MIMO) transmission associated with a primary wireless communication device (i) with the primary wireless communication device via the peer-to-peer link and (ii) with the network system via a cellular link. The secondary wireless communication device can enable the primary wireless communication device to communicate with the network system at a higher data rate and/or at a higher MIMO rank.

Abstract: Aspects of this disclosure relate to a user equipment that includes a transceiver that can operate in at least a traffic mode and a virtual network element mode. In the traffic mode, the transceiver can process a received downlink radio frequency signal and transmit an uplink radio frequency signal. The transceiver can couple a receive path to a transmit path in an analog domain in the virtual network element mode. In the virtual network element mode, the transceiver can, for example, perform functions of a network repeater or a network transmit-receive point.

Abstract: Aspects of this disclosure relate to systems and methods for wirelessly communicating data. A network system can wirelessly communicate with a user equipment in traffic mode and in a repeater mode. In the repeater mode, the user equipment functions as a repeater of a network system. The network system can signal a particular user equipment to operate in the repeater mode. The network system can wirelessly communicate cellular data for another user equipment with the particular user equipment in the repeater mode.

Abstract: Aspects of this disclosure relate to a user equipment that includes a transceiver that can operate in at least a traffic mode and a virtual network element mode. In the traffic mode, the transceiver can process a received downlink radio frequency signal and transmit an uplink radio frequency signal. The transceiver can couple a receive path to a transmit path in an analog domain in the virtual network element mode. In the virtual network element mode, the transceiver can, for example, perform functions of a network repeater or a network transmit-receive point.

Abstract: Aspects of this disclosure relate to systems and methods for wirelessly communicating data. A network system can wirelessly communicate with a user equipment in traffic mode and in a virtual transmit-receive point mode. In the virtual transmit-receive point mode, the user equipment functions as a virtual transmit-receive point of a network system for serving another user equipment. The network system can signal a particular user equipment to operate in the virtual transmit-receive point mode. The network system can wirelessly communicate cellular data for another user equipment with the particular user equipment in the virtual transmit-receive point mode.

Abstract: Aspects of the disclosure relate to a selection scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network to identify which users to schedule simultaneously during the same time slot. For uplink communications and a particular frequency wholeband or sub-band, the scheduler can obtain uplink channel information for channels between base stations and UEs. The scheduler can then determine a strength of the channels using the uplink channel information, order the UEs using a fairness metric based on the channel strengths, and compute one or more QR decompositions to identify whether a spatial dimension of a UE is roughly or approximately orthogonal to spatial dimension(s) of other UEs selected to be served during a time slot being scheduled. If the spatial dimensions are roughly or approximately orthogonal, the scheduler selects the UE to be served at the same time as other UEs already selected.