Traffic-priority-based transmission power fallback for interference mitigation
First Claim
1. A method for wireless communication, comprising:
- identifying, by a base station, semi-persistent resources reserved for use by traffic of a first priority;
transmitting, by the base station, an assignment of communication resources to a user equipment (UE) in a grant, the communication resources at least partially overlapping with the semi-persistent resources and to be used for traffic of a second priority from the UE, the second priority being lower than the first priority, wherein the grant indicates a maximum transmission power for the traffic of the second priority, the maximum transmission power for the traffic of the second priority being configured such that an interference parameter indicative of an amount of interference imposed by the traffic of the second priority on the traffic of the first priority satisfies an interference threshold; and
receiving the traffic of the second priority at a reception power that is below an expected reception power of the traffic of the first priority when a transmit power associated with the traffic of the second priority is at or below the maximum transmission power indicated by the grant.
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Accused Products
Abstract
Methods, systems, and devices for wireless communication are described to provide priority traffic grant-less access to pre-defined communication resources that are semi-persistently scheduled. A set of semi-persistent communication resources may be reserved for use by priority traffic. If the semi-persistent resources are not used for priority traffic, the semi-persistent resources may be scheduled for use by other types of traffic. As priority traffic is identified, the priority traffic may be transmitted using the semi-persistent resource without having those communication resources granted by a scheduling entity. Such grant-less access to the semi-persistent resources may result in collisions between the scheduled traffic and the priority traffic. To mitigate interference between different traffic types, the scheduled traffic may be transmitted using a transmission power that ensures an interference parameter indicative of an amount of interference imposed by the scheduled traffic on the priority traffic satisfies an interference threshold.
13 Citations
30 Claims
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1. A method for wireless communication, comprising:
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identifying, by a base station, semi-persistent resources reserved for use by traffic of a first priority; transmitting, by the base station, an assignment of communication resources to a user equipment (UE) in a grant, the communication resources at least partially overlapping with the semi-persistent resources and to be used for traffic of a second priority from the UE, the second priority being lower than the first priority, wherein the grant indicates a maximum transmission power for the traffic of the second priority, the maximum transmission power for the traffic of the second priority being configured such that an interference parameter indicative of an amount of interference imposed by the traffic of the second priority on the traffic of the first priority satisfies an interference threshold; and receiving the traffic of the second priority at a reception power that is below an expected reception power of the traffic of the first priority when a transmit power associated with the traffic of the second priority is at or below the maximum transmission power indicated by the grant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for wireless communication, in a system comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to; identify, by a base station, semi-persistent resources reserved for use by traffic of a first priority; transmit, by the base station, an assignment of communication resources to a user equipment (UE) in a grant, the communication resources at least partially overlapping with the semi-persistent resources and to be used for traffic of a second priority from the UE, the second priority being lower than the first priority, wherein the grant indicates a maximum transmission power for the traffic of the second priority, the maximum transmission power for the traffic of the second priority being configured such that an interference parameter indicative of an amount of interference imposed by the traffic of the second priority on the traffic of the first priority satisfies an interference threshold; and receive the traffic of the second priority at a reception power that is below an expected reception power of the traffic of the first priority when a transmit power associated with the traffic of the second priority is at or below the maximum transmission power indicated by the grant. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An apparatus for wireless communication, comprising:
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means for identifying, by a base station, semi-persistent resources reserved for use by traffic of a first priority; means for transmitting, by the base station, an assignment of communication resources to a user equipment (UE) in a grant, the communication resources at least partially overlapping with the semi-persistent resources and to be used for traffic of a second priority from the UE, the second priority being lower than the first priority, wherein the grant indicates a maximum transmission power for the traffic of the second priority, the maximum transmission power for the traffic of the second priority being configured such that an interference parameter indicative of an amount of interference imposed by the traffic of the second priority on the traffic of the first priority satisfies an interference threshold; and means for receiving the traffic of the second priority at a reception power that is below an expected reception power of the traffic of the first priority when a transmit power associated with the traffic of the second priority is at or below the maximum transmission power indicated by the grant.
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30. A non-transitory computer readable medium storing code for wireless communication, the code comprising instructions executable by a processor to:
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identify, by a base station, semi-persistent resources reserved for use by traffic of a first priority; transmit, by the base station, an assignment of communication resources to a user equipment (UE) in a grant, the communication resources at least partially overlapping with the semi-persistent resources and to be used for traffic of a second priority from the UE, the second priority being lower than the first priority, wherein the grant indicates a maximum transmission power for the traffic of the second priority, the maximum transmission power for the traffic of the second priority being configured such that an interference parameter indicative of an amount of interference imposed by the traffic of the second priority on the traffic of the first priority satisfies an interference threshold; and receive the traffic of the second priority at a reception power that is below an expected reception power of the traffic of the first priority when a transmit power associated with the traffic of the second priority is at or below the maximum transmission power indicated by the grant.
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Specification