D2D relays as an underlay in LTE uplink
First Claim
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1. A method of wireless communication at a user equipment (UE), comprising:
- obtaining, by the UE, at least one of a pathloss measurement to a base station or a maximum tolerable interference to the base station, wherein the UE is a relay having a backhaul link connected to the base station and an access link connected to a second UE, and wherein the backhaul link and the access link are allocated a same spectrum of an uplink to the base station;
determining, by the UE, a maximum transmission power for the access link to the second UE based on the at least one of the pathloss measurement or the maximum tolerable interference to the base station such that transmission from the UE to the second UE on the access link does not interfere with concurrent transmission from the UE to the base station on the backhaul link; and
communicating, concurrently, on the access link to the second UE at a transmission power less than the determined maximum transmission power and on the backhaul link to the base station.
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Abstract
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus obtains at least one of a pathloss measurement to a base station or a maximum tolerable interference to the base station, determines a maximum transmission power for an access link to a user equipment (UE) based on the at least one of the pathloss measurement or the maximum tolerable interference to the base station, and communicates on the access link to the UE at a transmission power less than the determined maximum transmission power.
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Citations
32 Claims
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1. A method of wireless communication at a user equipment (UE), comprising:
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obtaining, by the UE, at least one of a pathloss measurement to a base station or a maximum tolerable interference to the base station, wherein the UE is a relay having a backhaul link connected to the base station and an access link connected to a second UE, and wherein the backhaul link and the access link are allocated a same spectrum of an uplink to the base station; determining, by the UE, a maximum transmission power for the access link to the second UE based on the at least one of the pathloss measurement or the maximum tolerable interference to the base station such that transmission from the UE to the second UE on the access link does not interfere with concurrent transmission from the UE to the base station on the backhaul link; and communicating, concurrently, on the access link to the second UE at a transmission power less than the determined maximum transmission power and on the backhaul link to the base station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for wireless communication, wherein the apparatus is a user equipment (UE) comprising:
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means for obtaining, by the UE, at least one of a pathloss measurement to a base station or a maximum tolerable interference to the base station, wherein the UE is a relay having a backhaul link connected to the base station and an access link connected to a second UE, and wherein the backhaul link and the access link are allocated a same spectrum of an uplink to the base station; means for determining, by the UE, a maximum transmission power for the access link to the second UE based on the at least one of the pathloss measurement or the maximum tolerable interference to the base station such that transmission from the UE to the second UE on the access link does not interfere with concurrent transmission from the UE to the base station on the backhaul link; and means for communicating, by the UE concurrently, on the access link to the second UE at a transmission power less than the determined maximum transmission power and on the backhaul link to the base station. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for wireless communication, wherein the apparatus is a user equipment (UE) comprising:
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a processing system configured to; obtain, by the UE, at least one of a pathloss measurement to a base station or a maximum tolerable interference to the base station, wherein the UE is a relay having a backhaul link connected to the base station and an access link connected to a second UE, and wherein the backhaul link and the access link are allocated a same spectrum of an uplink to the base station; determine, by the UE, a maximum transmission power for the access link to the second UE based on the at least one of the pathloss measurement or the maximum tolerable interference to the base station such that transmission from the UE to the second UE on the access link does not interfere with concurrent transmission from the UE to the base station on the backhaul link; and communicate, by the UE concurrently, on the access link to the second UE at a transmission power less than the determined maximum transmission power and on the backhaul link to the base station. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A computer program product of a user equipment (UE), comprising:
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a non-transitory computer-readable medium comprising code for; obtaining, by the UE, at least one of a pathloss measurement to a base station or a maximum tolerable interference to the base station, wherein the UE is a relay having a backhaul link connected to the base station and an access link connected to a second UE, and wherein the backhaul link and the access link are allocated a same spectrum of an uplink to the base station; determining, by the UE, a maximum transmission power for the access link to the second UE based on the at least one of the pathloss measurement or the maximum tolerable interference to the base station such that transmission from the UE to the second UE on the access link does not interfere with concurrent transmission from the UE to the base station on the backhaul link; and communicating, by the UE concurrently, on the access link to the second UE at a transmission power less than the determined maximum transmission power and on the backhaul link to the base station. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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Specification