Alcatel Lucent

Nokia Solutions and Networks Oy

Alcatel-lucent USA Inc.

Nokia Technologies Oy

Nokia of America Corporation

Other

Provenance Asset Group LLC

Mohammad Riaz Khawer

Milind Madhav Buddhikot

Mugur Abulius

Teck H Hu

Jonathan Ling

Robert Atmaram Soni

David Lopez-Perez

Sigen Ye

Matthew P J Baker

Ruth S Gayde

Padma Sudarsan

Lina So

Stephan Litjens

Yigang Cai

Feng Han

Matthew Baker

Shin Horng Wong

Subramanian Vasudevan

Colin Leon Kahn

Satish Kanugovi

Shkumbin Hamiti

Mark H Kraml

Tomas S Yang

Padmavathi Sudarsan

Dandan Wang

Michael Joseph Schabel

Benjamin Cheung

Kutlay Erman

Shriram K Easwaran

Stephen George Pisano

Frank Shelton

Sebastian Yandun

David Lopez-perez

A spectrum access system (SAS) includes a transceiver configured to receive a registration request from a first base station in response to the first base station being installed. The SAS also includes a processor configured to allocate a channel in a shared spectrum and a transmission power to the first base station. The transceiver is configured to transmit a test grant authorizing the first base station to transmit on the channel at the transmission power for a predetermined time interval. The test grant is converted to a suspended grant following the predetermined time interval. In some cases, the transceiver is configured to receive the registration request from the first base station in response to the first base station being installed in a protection area.

Test grants for base stations installed in protection areas

A spectrum access system (SAS) includes a transceiver that receives information indicating a path loss from an interior location to an exterior location in response to a base station being installed at the interior location. The SAS also includes a processor to determine an aggregate interference level for an incumbent proximate the exterior location based on the path loss. An edge router executes instances of a packet core network. The edge router instantiates containers for a connectivity or digital automation enabler and routes customer network traffic without leaving the customer network. A domain proxy receives a request to allocate carriers to a base station and determines whether a frequency separation between the carriers is larger than a bandwidth allocated to an incumbent. The request is rejected if the frequency separation is less than the bandwidth and granted if the frequency separation is greater than or equal to the bandwidth.

Private cellular enterprise network deployment with enhanced data security for infrastructures such as fortresses with thick concrete walls

A first spectrum access system (SAS) instance receives a message (such as a heartbeat message) including an identifier of a first base station that is not registered with the first SAS instance. The first SAS instance accesses a database that is shared with a second SAS instance and periodically synchronized with the second SAS instance. The first SAS instance provides an SAS service that was previously established between the first base station and the second SAS instance in response to the database including a record generated by the second SAS instance for the first base station. The first base station registers to provide connectivity in a shared spectrum using the SAS service provided by the second SAS instance. The first base station transmits the message to the first SAS instance including an identifier of the first base station in response to the second SAS instance becoming unavailable.

High availability access to shared spectrum using geo-redundant spectrum access systems

An apparatus such as a domain proxy implemented in an edge cloud of a private enterprise network includes a processor configured to aggregate traffic for Citizens Broadband radio Service Devices (CBSDs) in a private enterprise network. The apparatus also includes a transceiver configured to monitor communication with geo-redundant instances of a spectrum access system (SAS) that allocate frequency bands in a shared spectrum to the CBSDs. The processor is configured to instantiate a local SAS in response to the geo-redundant instances of the SAS becoming unavailable. The local SAS is configured to respond to heartbeat messages from the CBSDs. The local SAS is also configured to attempt to establish a connection with an environmental sensing capability (ESC) in response to the geo-redundant SASs becoming unavailable.

Enhanced network availability for private enterprise networks in shared spectrum systems

An apparatus () includes a transceiver () configured to establish a connection with a spectrum access server (SAS) () and a processor () configured to monitor a status of the connection. The processor () is also configured to modify the connection to the SAS () in response to the status indicating a possible failure of the connection. The processor () modifies the connection prior to expiration of a timeout interval for the connection to the SAS (). The apparatus () is a Citizens Band Service Device (CBSD) (-) or a domain proxy (DP) () that aggregates messages for multiple CBSDs.

Highly available radio access network in a shared spectrum

A domain proxy receives a request from a base station for allocation of a first portion of a frequency band to support cellular communication in a geographic area that is indicated in the request. The frequency band is available for exclusive allocation to an incumbent device. The base station is required to vacate the first portion of the frequency band in response to the incumbent device arriving in the geographic area and being allocated a second portion of the frequency band that overlaps with the first portion. The domain proxy accesses a policy for the base station from a database and, based on the policy, selectively provides the request to a spectrum access server (SAS) that is responsible for allocating portions of the frequency band.

Managing access to a shared spectrum using a domain proxy

A base station requires one or more channels in an unlicensed frequency band for a predetermined time interval and schedules one or more user equipment for uplink transmission on the one or more channels during the predetermined time interval. User equipment transmits, over a licensed frequency band, a request for resources for uplink transmission in an unlicensed frequency band. The user equipment receives scheduling information indicating a first portion of a predetermined time interval that is allocated to the first user equipment for uplink transmission on one or more channels in the unlicensed frequency band.

Network controlled acquisition of uplink channels in unlicensed frequency bands

A base station establishes a wireless connection in a first portion of a frequency band with a user equipment located in a first geographic area. The first portion is allocated to an operator of the base station in response to a request transmitted to a spectrum access server (SAS). The user equipment is handed over from the first portion to a second portion of the frequency band in response to detecting presence of an incumbent that is allocated a third portion of the frequency band for exclusive use within a second geographic area that overlaps with the first geographic area. The third portion overlaps with the first portion. The second portion is allocated to the operator in response to the request. The first portion and the second portion are separated by a frequency bandwidth that is larger than a threshold determined based on a frequency bandwidth allocated to incumbents.

Shared spectrum with high availability for private enterprise networks

A spectrum access system (SAS) grants one or more channels of a shared spectrum to a base station, e.g., in response to receiving a registration request from the base station. The SAS increments a usage of a connection between the base station and the SAS in response to the SAS receiving information indicating that the base station has an active connection with the apparatus during a service time interval. The processor does not increment the usage if the base station does not have an active connection with the apparatus during the service time interval. In some cases, the active connection is indicated by heartbeat messages exchanged between the base station and the SAS. A customer associated with the base station is charged a cost based on the usage determined by the SAS.

Flexible charging mechanism for shared spectrum usage

A method is provided for assisting data transmission on a first carrier by indicating a termination point of data transmission in a transmitting device and apparatus thereof, wherein the method comprises the steps of: A. transmitting data on the carrier to a receiving device in a first subframe; and B. transmitting downlink control information to the receiving device; wherein the downlink control information includes a termination point indication for indicating a termination point of the data in the first subframe. The method and apparatus could improve the utilization of subframe and transmission capacity, and enable LTE to satisfy the regulations for unlicensed operation with high spectral efficiency.

Method for assisting data transmission on a first carrier by indicating a termination point of data transmission

A system-on-a-chip (SOC) board includes a first switch and a plurality of local system-on-a-chip (SOC) devices coupled to the first switch. Each local SOC device includes one or more scheduler for one or more carriers and one or more hardware queues for storing paging packets to be scheduled by the scheduler for wireless transmission. One of the local SOC devices is a transport SOC (TSOC) device that implements a call processing module that is configured to receive a paging packet, forward a copy of the paging packet for storage in a hardware queue associated with each scheduler in the TSOC device that has registered to receive paging packets, and provide a copy of the paging packet to the first switch in response to one or more of the schedulers in the other local SOC devices registering to receive paging packets.

Routing paging packets in a system-on-a-chip base station architecture

A first system-on-a-chip (SOC) device is configured to connect to a backplane interface that is connected to a second SOC device. The first SOC device includes one or more processors to encapsulate an uplink radio bearer packet received at the first SOC device in a first header to form a first encapsulated packet. The first header includes a first address of a destination that is connected to the second SOC device by a backhaul network. The processors are also configured to encapsulate the first encapsulated packet in a second header to form a second encapsulated packet. The second header includes a second address of the second SOC device. The first SOC device also includes a hardware acceleration engine configured to transmit the second encapsulated packet from the first device board over the backplane interface.

Uplink packet routing in a system-on-a-chip base station architecture

A base station operates according to a first radio access technology (RAT) that requires synchronization on timing synchronization boundaries. The base station acquires a channel of an unlicensed frequency band and generates a clear-to-send message that is decodable by access points that operate according to a second RAT that does not require synchronization on the timing synchronization boundaries. The base station transmits the clear-to-send message during a time interval between acquisition of the channel and a subsequent timing synchronization boundary.

Enhancing coexistence on unlicensed frequency bands using adaptive clear-to-send-to-self messages

A first node includes a transceiver configured to detect one or more second nodes that transmit one or more signals on a channel of an unlicensed frequency band. The one or more signals have one or more received signal strengths at the first node that are below an energy detection threshold that indicates the channel is clear for transmission by the first node. The first node also includes a processor configured to modify the energy detection threshold based on the received signal strength.

Adaptive energy detection threshold for clear channel assessment

A first node that operates according to a first radio access technology (RAT) provides a first schedule to a second node that operates according to a second RAT. The first schedule requests a first portion of a subsequent time interval for transmission in an unlicensed frequency band. The first node receives one or more second schedules from a second node. The one or more second schedules request one or more second portions of the subsequent time interval for transmission in the unlicensed frequency band. The first node transmits signals in the unlicensed frequency bands during a third portion of the subsequent time interval that is determined based on the at least one second portion.

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Lake Hopatcong, NJ, United States of America

Mohammad Riaz Khawer