Dynamic swapping of uplink and downlink base stations
AssigneeSprint Spectrum L.P.
InventorsJasinder P. Singh, Brett Christian
Life of this patent
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Abstract
A method and system is disclosed for dynamic swapping of uplink and downlink base stations. A user equipment device (UE) may engage in a communication session with a downlink from a first base station (e.g., eNodeB) and an uplink to second, different base station. If a determination is made that more favorable operating conditions for transmitting session communications to the UE are available on a downlink air interface from the second base station than on the downlink air interface from the first base station, the uplink and downlink may be swapped, such that after swapping, the UE may have a downlink from second base station and an uplink to the first base station.
Claims17
In a wireless communication system including a first base station and a different, second base station, a method comprising:
- while serving a user equipment device (UE) in a communication session, transmitting session communications to the UE over a downlink air interface from the first base station and receiving session communications from the UE over an uplink air interface to the second base station, wherein the downlink air interface from the first base station is assigned to the UE for downlink session communications to the UE, and the uplink air interface to the second base station is concurrently assigned to the UE for uplink communications from the UE;
- making a determination that more favorable operating conditions for transmitting session communications to the UE are available on a downlink air interface from the second base station than on the downlink air interface from the first base station;
- and
- in response to making the determination, swapping the downlink air interface from the first base station with the downlink air interface from the second base station, and swapping the uplink air interface to the second base station with an uplink air interface to the first base station for session communications from the UE, wherein as a result of swapping, the downlink air interface from the second base station is assigned to the UE for downlink session communications to the UE, and the uplink air interface to the first base station is concurrently assigned to the UE for uplink communications from the UE,
- wherein swapping the downlink air interface from the first base station with the downlink air interface from the second base station comprises executing a channel reassignment protocol with the UE to replace a downlink air interface channel from the first base station to the UE with a downlink air interface channel from the second base station to the UE, and thereafter transmitting session communications to the UE over the downlink air interface channel from the second base station,
- and wherein swapping the uplink air interface to the second base station with an uplink air interface to the first base station comprises executing the channel reassignment protocol with the UE to replace an uplink air interface channel from the UE to second base station with an uplink air interface channel from the UE to first base station, and thereafter receiving session communications from the UE over the uplink air interface channel to the first base station.
A device configured for operation in a wireless communication system, wherein the wireless communication system includes a first base station and a different, second base station, the device comprising:
- one or more processors;
- memory;
- and
- machine-readable instructions stored in the memory, that upon execution by the one or more processors cause the device to carry out operations comprising:
- while a user equipment device (UE) is engaging in a communication session over a downlink air interface channel from the first base station to the UE and over an uplink air interface channel from the UE to the second base station, making a determination that more favorable operating conditions for transmitting session communications to the UE are available on a downlink air interface channel from the second base station to the UE than on the downlink air interface channel from the first base station to the UE, wherein the downlink air interface from the first base station is assigned to the UE for downlink session communications to the UE, and the uplink air interface to the second base station is concurrently assigned to the UE for uplink communications from the UE, and
- in response to making the determination, causing swapping of the downlink air interface channel from the first base station with the downlink air interface channel from the second base station, and causing swapping of the uplink air interface channel to the second base station with an uplink air interface channel from the UE to the first base station, wherein as a result of swapping, the downlink air interface from the second base station is assigned to the UE for downlink session communications to the UE, and the uplink air interface to the first base station is concurrently assigned to the UE for uplink communications from the UE,
- wherein swapping of the downlink air interface channel from the first base station with the downlink air interface channel from the second base station comprises executing a channel reassignment protocol with the UE to replace the downlink air interface channel from the first base station to the UE with the downlink air interface channel from the second base station to the UE, and thereafter transmitting session communications to the UE over the downlink air interface channel from the second base station,
- and wherein swapping of the uplink air interface to the second base station with the uplink air interface to the first base station comprises executing the channel reassignment protocol with the UE to replace the uplink air interface channel from the UE to second base station with the uplink air interface channel from the UE to first base station, and thereafter receiving session communications from the UE over the uplink air interface channel to the first base station.
A non-transitory computer-readable medium having instructions stored thereon that, upon execution by one or more processors of a radio access network (RAN) device of a wireless communication network that includes a first base station and a different, second base station, cause the RAN device to carry out functions including:
- while a user equipment device (UE) is engaging in a communication session over a downlink air interface channel from the first base station to the UE and over an uplink air interface channel from the UE to the second base station, making a determination that more favorable operating conditions for transmitting session communications to the UE are available on a downlink air interface channel from the second base station to the UE than on the downlink air interface channel from the first base station to the UE, wherein the downlink air interface from the first base station is assigned to the UE for downlink session communications to the UE, and the uplink air interface to the second base station is concurrently assigned to the UE for uplink communications from the UE, and
- in response to making the determination, causing swapping of the downlink air interface channel from the first base station with the downlink air interface channel from the second base station, and causing swapping of the uplink air interface channel to the second base station with an uplink air interface channel from the UE to the first base station, wherein as a result of swapping, the downlink air interface from the second base station is assigned to the UE for downlink session communications to the UE, and the uplink air interface to the first base station is concurrently assigned to the UE for uplink communications from the UE,
- wherein swapping of the downlink air interface channel from the first base station with the downlink air interface channel from the second base station comprises executing a channel reassignment protocol with the UE to replace the downlink air interface channel from the first base station to the UE with the downlink air interface channel from the second base station to the UE, and thereafter transmitting session communications to the UE over the downlink air interface channel from the second base station,
- and wherein swapping of the uplink air interface to the second base station with the uplink air interface to the first base station comprises executing the channel reassignment protocol with the UE to replace the uplink air interface channel from the UE to second base station with the uplink air interface channel from the UE to first base station, and thereafter receiving session communications from the UE over the uplink air interface channel to the first base station.
Dependencies are inferred from the claim text.