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UE power distribution method used for LTE/LTE-ATDD double-connection scene

A TTDD-FDD, dual-connection technology, applied in power management, wireless communication, electrical components, etc., can solve problems such as prolonging UE process time and increasing UE power consumption, achieving good power control and improving system performance

Active Publication Date: 2015-03-25
WUHAN HONGXIN TELECOMM TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because "look-ahead" requires the UE to know the transmission information of the next subframe in advance in the current subframe, it will cause certain overhead to the UE, such as prolonging the process time of the UE and increasing the power consumption of the UE, etc.

Method used

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  • UE power distribution method used for LTE/LTE-ATDD double-connection scene
  • UE power distribution method used for LTE/LTE-ATDD double-connection scene
  • UE power distribution method used for LTE/LTE-ATDD double-connection scene

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Embodiment Construction

[0029] The present invention comprises the following steps, as Figure 4 Shown:

[0030] Step 1: UE determines the current dual connectivity state, and when both MeNB and SeNB are in TDD mode, perform step 2; when one of MeNB and SeNB is in TDD mode, perform step 4;

[0031] Step 2: The UE detects the status of the current subframe i and subframe j connected to the MeNB and SeNB. Once the subframe i and subframe j are both S, the UE starts the "look-ahead" function and performs step 3;

[0032] Step 3: Calculate the minimum duration T of the TDD-TDD dual connectivity "look-ahead" function TDD-TDD : According to Table 1, the minimum duration T of the TDD-TDD dual connection "look-ahead" function is obtained TDD-TDD . For example, when MeNB configures 0 for uplink and downlink and SeNB configures 1 for uplink and downlink, the overlap of two subframes S can be obtained according to Table 1, T TDD-TDD {configuration 0, configuration 1} = 2ms; go to step six;

[0033] Step 4:...

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Abstract

The invention provides a UE power distribution method used for an LTE / LTE-ATDD double-connection scene. The UE power distribution method used for the LTE / LTE-ATDD double-connection scene is a method for deciding the time of duration for executing the look-ahead function by comparing uplink and downlink configurations used by MeNB and SeNB. By comparing the uplink and downlink configurations used by MeNB and SeNB, whether the look-ahead function of UE is started or not is decided according to the occurring situation of special subframes S in UL-DL configurations; the UE intelligently starts the look-ahead function in the scene of double connection of the UE and a TDD base station, it is ensured that the UE reasonably distributes power, and the system performance is improved.

Description

technical field [0001] The technical field that the present invention relates to is the field of wireless communication, and more specifically, the present invention relates to a UE power allocation method for LTE / LTE-A TDD dual connectivity scenarios, which is a 3GPP LTE / LTE-A TDD dual connectivity method. In the connection scenario, the remaining power allocation is more in line with actual needs by predicting the state of the next subframe. Background technique [0002] The deployment of small cells can effectively increase the capacity of cellular mobile networks, but with the large-scale deployment of small cells, frequent handovers may lead to increased signaling overhead, thereby affecting system performance. Therefore, a dual connectivity function is proposed to solve related problems. [0003] Dual connectivity means that UE establishes connection with two different eNBs and enjoys the radio resources of these two eNBs at the same time. Ideal backhaul link. In or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/50
CPCH04W52/50
Inventor 姜杉李小龙王俊
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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