Methods and Nodes for Coordinating Uplink Transmissions in a Wireless Communication Network
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Abstract
Methods and nodes for coordinating uplink transmissions in a victim cell and in an aggressor cell. The uplink transmissions in the aggressor cell potentially cause interference at a victim radio node receiving or measuring uplink signals transmitted in the victim cell. A coordinating node obtains (200) an indication of an uplink pattern of interference-protected resources in frequency and time where uplink transmissions are allowed to be scheduled in the victim cell but not in the aggressor cell. The coordinating node then signals (202) the indication to an aggressor radio node serving the aggressor cell and/or to the victim radio node. When a radio node receives (204) the signaled indication, it uses (206) the uplink pattern for scheduling uplink transmissions in one or both of the victim cell and the aggressor cell, or for configuring a measurement or signal reception. The coordinating node may be the victim radio node (302), or the aggressor radio node (300), or a network node (304) signalling the indication to one or both of the victim radio node and the aggressor radio node.
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Citations
67 Claims
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1-36. -36. (canceled)
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37. A method performed in a coordinating node of a wireless communication network, for coordinating uplink transmissions in a victim cell and in an aggressor cell, wherein the uplink transmissions in the aggressor cell potentially cause interference at a victim radio node receiving or measuring uplink signals transmitted in the victim cell, the method comprising:
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obtaining an indication of an uplink pattern of interference-protected resources in frequency and time where uplink transmissions are allowed to be scheduled in the victim cell but not in the aggressor cell, and wherein time refers to fractions of subframes, and signalling the indication of said uplink pattern to at least one of an aggressor radio node serving the aggressor cell and the victim radio node, thereby enabling mitigation of interference caused by uplink transmissions in the aggressor cell when receiving or measuring uplink signals on said interference-protected resources at the victim radio node. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A coordinating node of a wireless communication network, configured to coordinate uplink transmissions in a victim cell and in an aggressor cell, wherein the uplink transmissions in the aggressor cell potentially cause interference at a victim radio node receiving or measuring uplink signals transmitted in the victim cell, the coordinating node comprising:
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a logic unit adapted to obtain an indication of an uplink pattern of interference-protected resources in frequency and where uplink transmissions are allowed to be scheduled in the victim cell but not in the aggressor cell, and wherein time refers to fractions of subframes, and a signalling unit adapted to signal the indication of said uplink pattern to at least one of an aggressor radio node serving the aggressor cell and the victim radio node, thereby enabling mitigation of interference caused by uplink transmissions in the aggressor cell when receiving or measuring uplink signals on said interference-protected resources at the victim radio node. - View Dependent Claims (55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
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66. A method performed in a radio node of a wireless communication network, for scheduling or configuring for uplink transmissions in one or both of a victim cell and in an aggressor cell, wherein the uplink transmissions in the aggressor cell potentially cause interference at a victim radio node receiving or measuring uplink signals transmitted in the victim cell, the method comprising:
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receiving an indication of an uplink pattern of interference-protected resources in frequency and time where uplink transmissions are allowed to be scheduled in the victim cell but not in the aggressor cell, and wherein time refers to fractions of subframes, and using said uplink pattern for scheduling uplink transmissions in one or both of the victim cell and the aggressor cell, or for configuring at least one measurement or signal reception according to said uplink pattern.
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67. A radio node of a wireless communication network, the radio node being configured to schedule or configure for uplink transmissions in one or both of a victim cell and in an aggressor cell, wherein the uplink transmissions in the aggressor cell potentially cause interference at a victim radio node receiving or measuring uplink signals transmitted in the victim cell, the radio node comprising:
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a receiving unit adapted to receive an indication of an uplink pattern of interference protected resources in frequency and time where uplink transmissions are allowed to be scheduled in the victim cell but not in the aggressor cell, and wherein time refers to fractions of subframes, and a using unit adapted to use said uplink pattern for scheduling uplink transmissions in one or both of the victim cell and the aggressor cell, or for configuring at least one measurement or signal reception according to said uplink pattern.
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Specification