Method and node for reducing handover signaling associated with group handover
First Claim
1. A method for supporting handover in a first radio network node of a wireless network, wherein the first radio network node serves wireless devices of a serving cell, the method comprising:
- grouping a plurality of wireless devices in the serving cell into a group, wherein the grouping is based on information received at the first radio network node,selecting one of the plurality of wireless devices as a coordinating wireless device for the group,requesting a measurement report only from the coordinating wireless device of the group, wherein the measurement report is used for determining a target cell for a joint handover for the plurality of wireless devices of the group,receiving the measurement report from the coordinating wireless device,determining the target cell based on the received measurement report, andsending a handover request for the plurality of wireless devices to a second radio network node serving the target cell, the handover request comprising identities of the plurality of wireless devices,wherein the coordinating wireless device and remaining other ones of the group of wireless devices are User Equipments.
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Abstract
The present invention relates to a method for supporting handover in a first radio network node of a wireless network. The first radio network node serves wireless devices of a serving cell. The method comprises grouping a plurality of wireless devices in the serving cell into a group, and selecting one of the plurality of wireless devices as a coordinating wireless device for the group. The method also comprises requesting a measurement report from the coordinating wireless device for the group, wherein the measurement report is to support a joint handover decision for the plurality of wireless devices of the group.
12 Citations
18 Claims
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1. A method for supporting handover in a first radio network node of a wireless network, wherein the first radio network node serves wireless devices of a serving cell, the method comprising:
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grouping a plurality of wireless devices in the serving cell into a group, wherein the grouping is based on information received at the first radio network node, selecting one of the plurality of wireless devices as a coordinating wireless device for the group, requesting a measurement report only from the coordinating wireless device of the group, wherein the measurement report is used for determining a target cell for a joint handover for the plurality of wireless devices of the group, receiving the measurement report from the coordinating wireless device, determining the target cell based on the received measurement report, and sending a handover request for the plurality of wireless devices to a second radio network node serving the target cell, the handover request comprising identities of the plurality of wireless devices, wherein the coordinating wireless device and remaining other ones of the group of wireless devices are User Equipments. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A first radio network node of a wireless network configured to serve wireless devices of a serving cell and to support handover of the wireless devices, the first radio network node comprising:
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a processing circuit configured to group a plurality of wireless devices in the serving cell into a group, wherein the grouping is based on information received at the first radio network node, wherein the processing circuit is further configured to select one of the plurality of wireless devices as a coordinating wireless device for the group, wherein the processing circuit is further configured to request a measurement report from only the coordinating wireless device of the group, and wherein the measurement report is used for determining a target cell for a joint handover for the plurality of wireless devices of the group; a memory operatively coupled to the processing circuit and configured to store information that is used by the processing circuit, and a receiver and a communication unit, wherein the receiver is configured to receive the measurement report from the coordinating wireless device, wherein the processing circuit is further configured to determine a target cell based on the received measurement report, wherein the communication unit is configured to send a handover request for the plurality of wireless devices to a second radio network node serving the target cell, the handover request comprising identities of the plurality of wireless devices, and wherein the coordinating wireless device and remaining other ones of the group of wireless devices are User Equipments. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification