Beamforming handover messaging in a wireless network
First Claim
Patent Images
1. A first base station comprising:
- one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the first base station to;
transmit, to a second base station and based on a handover decision for a wireless device, at least one first message comprising first configuration parameters for a first quantity of channel state information (CSI) reference signals, wherein the first quantity is less than or equal to a quantity of channel state information (CSI) processes supported by the wireless device;
receive, from the second base station, at least one second message comprising second configuration parameters for a second quantity of CSI reference signals, wherein the second quantity is less than or equal to the quantity of CSI processes supported by the wireless device; and
transmit, to the wireless device, a third message comprising the second configuration parameters.
2 Assignments
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Accused Products
Abstract
A wireless device may support a plurality of channel state information (CSI) processes. The wireless device may send an indication of a number of supported CSI processes to a first base station. The first base station may send an indication of a number of CSI processes supported by the wireless to a second base station. This information may be used during handover of the wireless device.
267 Citations
63 Claims
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1. A first base station comprising:
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one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the first base station to; transmit, to a second base station and based on a handover decision for a wireless device, at least one first message comprising first configuration parameters for a first quantity of channel state information (CSI) reference signals, wherein the first quantity is less than or equal to a quantity of channel state information (CSI) processes supported by the wireless device; receive, from the second base station, at least one second message comprising second configuration parameters for a second quantity of CSI reference signals, wherein the second quantity is less than or equal to the quantity of CSI processes supported by the wireless device; and transmit, to the wireless device, a third message comprising the second configuration parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A first base station comprising:
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one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the first base station to; transmit, to a second base station and based on a handover decision for a wireless device, at least one first message comprising one or more parameters indicating that the wireless device supports configuration of a first quantity of channel state information (CSI) processes for a carrier; receive, from the second base station, at least one second message comprising second configuration parameters for a second quantity of CSI reference signals, wherein the second quantity is less than or equal to the first quantity; and transmit, to the wireless device, a third message comprising the second configuration parameters. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A first base station comprising:
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one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the first base station to; receive, from a wireless device, a first message comprising one or more parameters indicating that the wireless device supports configuration of a first quantity of channel state information (C SI) processes for a carrier, the first quantity being greater than one; transmit, to the wireless device, at least one second message comprising configuration parameters for a second quantity of CSI reference signals for the carrier, wherein the second quantity is less than or equal to the first quantity; and transmit, to a second base station and in response to a determination to perform a handover for the wireless device, at least one third message comprising an indication of the configuration parameters for the second quantity of CSI reference signals. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A first base station comprising:
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one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the first base station to; receive, from a wireless device, a first message comprising one or more parameters indicating that the wireless device supports configuration of a first quantity of channel state information (C SI) processes for a carrier, the first quantity being greater than one; transmit, to the wireless device, at least one second message comprising configuration parameters for a second quantity of CSI reference signals for the carrier, wherein the second quantity is less than or equal to the first quantity; and transmit, to a second base station and in response to a determination to perform a handover for the wireless device, at least one third message comprising an indication of the one or more parameters indicating that the wireless device supports the configuration of the first quantity of CSI processes. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. A system comprising
a first base station configured to: -
transmit, to a second base station and based on a handover decision for a wireless device, at least one first message comprising first configuration parameters for a first quantity of channel state information (CSI) reference signals, wherein the first quantity is less than or equal to a quantity of channel state information (CSI) processes supported by the wireless device; receive, from the second base station, at least one second message comprising second configuration parameters for a second quantity of CSI reference signals, wherein the second quantity is less than or equal to the quantity of CSI processes supported by the wireless device; and transmit, to the wireless device, a third message comprising the second configuration parameters; and the second base station configured to receive, from the first base station, the first message comprising the first configuration parameters; and transmit, to the first base station, the second message comprising the second configuration parameters. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38)
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39. A system comprising
a first base station configured to: -
transmit, to a second base station and based on a handover decision for a wireless device, at least one first message comprising one or more parameters indicating that the wireless device supports configuration of a first quantity of channel state information (CSI) processes for a carrier; receive, from the second base station, at least one second message comprising second configuration parameters for a second quantity of CSI reference signals, wherein the second quantity is less than or equal to the first quantity; and transmit, to the wireless device, a third message comprising the second configuration parameters; and the second base station configured to receive, from the first base station, the first message comprising the one or more parameters; and transmit, to the first base station, the second message comprising the second configuration parameters. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46)
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47. A system comprising:
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a first base station configured to; receive, from a wireless device, a first message comprising one or more parameters indicating that the wireless device supports configuration of a first quantity of channel state information (CSI) processes for a carrier, the first quantity being greater than one; transmit, to the wireless device, at least one second message comprising configuration parameters for a second quantity of CSI reference signals for the carrier, wherein the second quantity is less than or equal to the first quantity; and transmit, to a second base station and in response to a determination to perform a handover for the wireless device, at least one third message comprising an indication of the configuration parameters for the second quantity of CSI reference signals; and the wireless device configured to; transmit, to the first base station, the first message; and receive, from the first base station, the at least one second message. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55)
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56. A system comprising:
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a first base station configured to; receive, from a wireless device, a first message comprising one or more parameters indicating that the wireless device supports configuration of a first quantity of channel state information (CSI) processes for a carrier, the first quantity being greater than one; transmit, to the wireless device, at least one second message comprising configuration parameters for a second quantity of CSI reference signals for the carrier, wherein the second quantity is less than or equal to the first quantity; and transmit, to a second base station and in response to a determination to perform a handover for the wireless device, at least one third message comprising an indication of the one or more parameters indicating that the wireless device supports the configuration of the first quantity of CSI processes; and the wireless device configured to; transmit, to the first base station, the first message; and receive, from the first base station, the at least one second message. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63)
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Specification