Power reduction method used under carrier aggregation power control condition
A power reduction and carrier aggregation technology, applied in power management, electrical components, sustainable buildings, etc., can solve problems such as suboptimal performance, impact on average transmission performance, and complicated UE processing, so as to reduce the impact of power allocation Effect
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Embodiment 1
[0036] This embodiment provides a power reduction method for carrier aggregation power control scenarios. to reduce, if ( Indicates the reduction factor of the carrier) is greater than the power limit of the carrier P CMAX，c , then the power of the carrier is truncated to P CMAX，c, and distribute the truncated power of the carrier to the remaining carriers. This process can be divided into the following two steps:
[0037] The first step is to determine the actual power of the carrier Perform proportional reduction, reduction factor If all carriers meet the conditions Then the power reduction is completed; otherwise, skip to the second step; where P CMAX Indicates the total power limit of the terminal, P PUCCH (i) represents the transmission power of the control channel, Indicates the sum of the transmission power of the carrier containing the control signaling, c noUCI Indicates a carrier that does not contain control signaling (i.e. a data carrier), c UCI ...
Embodiment 2
[0046] The power reduction method described in Embodiment 1 is to reduce the power of each carrier before truncation in equal proportions, but this method requires iterations, and the power reduction method described in this embodiment is to reduce the power of the carrier P PUSCH，c (i) Divide into two categories, and distribute each category as a whole in equal proportions, so that there is no need for loop iterations, the specific method is as follows:
[0047] In the first step, the carrier power P PUSCH，c (i) fall into two categories:
[0048] Type I: After applying power control formula (2), Note the class P PUSCH，c The total power of (i) is , with C I Indicates the set of carriers of this type;
[0049] Type II: After applying the power control formula (2), it is necessary to to truncate, P PUSCH，c (i)=P CMAX，c , denote the class P PUSCH，c The total power of (i) is , with C II Indicates the set of carriers of this type.
[0050] In the second step, for th...
Embodiment 3
[0067] This embodiment mainly compares the power reduction method described in Embodiment 1 and Embodiment 2 with the traditional power reduction method A and method B, mainly comparing the reduced power w c ·P PUSCHc (i) sum and power before truncation If the ratio is equal (at least as equal as possible), it can be considered that the situation of each carrier is considered in balance, so that the impact of power reduction on scheduling is better distributed to each carrier.
[0068] From the analysis to four kinds of methods, it can be seen that the equation in the method described in embodiment two (also known as method two) quantitatively describes the requirement of this proportion, and the method described in embodiment one is to realize the same for each indivual Do equal proportions. Therefore, in the sense of dispersing the influence, method B and the method described in Example 1 (also called method 1) are optimal. In this embodiment, method B is used as a ben...
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