Beamforming handover messaging in a wireless network
First Claim
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1. A method comprising:
- transmitting, by a first base station to a second base station and in response to a handover decision for a wireless device, at least one first message comprising at least one of;
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;
orfirst configuration parameters of a second quantity of CSI reference signals and of a third quantity of CSI interference measurement resources, wherein the second quantity and the third quantity are each less than or equal to the first quantity;
receiving, from the second base station, at least one second message comprising;
second configuration parameters of a fourth quantity of CSI reference signals and of a fifth quantity of CSI interference measurement resources, wherein the fourth quantity and the fifth quantity are each less than or equal to the first quantity; and
transmitting, to the wireless device, a third message comprising the second configuration parameters.
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Abstract
A first base station transmits a message to a second base station after a handover decision for a wireless device supporting beamforming and multiple carrier configurations. The message includes a plurality of measurement configuration parameters for the wireless device. The first base station receives a response from the second base stations. The first base station transmits a handover command to the wireless device subsequent to receiving the response message.
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Citations
27 Claims
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1. A method comprising:
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transmitting, by a first base station to a second base station and in response to a handover decision for a wireless device, at least one first message comprising at least one of; 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;
orfirst configuration parameters of a second quantity of CSI reference signals and of a third quantity of CSI interference measurement resources, wherein the second quantity and the third quantity are each less than or equal to the first quantity; receiving, from the second base station, at least one second message comprising; second configuration parameters of a fourth quantity of CSI reference signals and of a fifth quantity of CSI interference measurement resources, wherein the fourth quantity and the fifth quantity are each less than or equal to the first quantity; and transmitting, to the wireless device, a third message comprising the second configuration parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. 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 in response to 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, the first quantity being greater than one; and first configuration parameters of a second quantity of CSI reference signals and of a third quantity of CSI interference measurement resources, wherein the second quantity and the third quantity are each less than or equal to the first quantity; receive, from the second base station, at least one second message comprising; second configuration parameters of a fourth quantity of CSI reference signals and of a fifth quantity of CSI interference measurement resources, wherein the fourth quantity and the fifth quantity are each 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 (9, 10, 11, 12, 19, 20)
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13. 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 in response to a handover decision for a wireless device, at least one first message comprising at least one of; 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;
orfirst configuration parameters of a second quantity of CSI reference signals and of a third quantity of CSI interference measurement resources, wherein the second quantity and the third quantity are each less than or equal to the first quantity; receive, from the second base station, at least one second message comprising; second configuration parameters of a fourth quantity of CSI reference signals and of a fifth quantity of CSI interference measurement resources, wherein the fourth quantity and the fifth quantity are each 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 (14, 15, 16, 17, 18)
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21. A method comprising:
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transmitting, by a first base station to a second base station and in response to 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, the first quantity being greater than one; and first configuration parameters of a second quantity of CSI reference signals and of a third quantity of CSI interference measurement resources, wherein the second quantity and the third quantity are each less than or equal to the first quantity; receiving, from the second base station, at least one second message comprising; second configuration parameters of a fourth quantity of CSI reference signals and of a fifth quantity of CSI interference measurement resources, wherein the fourth quantity and the fifth quantity are each less than or equal to the first quantity; and transmitting, to the wireless device, a third message comprising the second configuration parameters. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification