A method for UE power allocation in lte/lte‑a TDD dual connectivity scenarios

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

Active Publication Date: 2018-04-20
WUHAN HONGXIN TELECOMM TECH CO LTD
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  • Description
  • 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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  • A method for UE power allocation in lte/lte‑a TDD dual connectivity scenarios
  • A method for UE power allocation in lte/lte‑a TDD dual connectivity scenarios
  • A method for UE power allocation in lte/lte‑a TDD dual connectivity scenarios

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Embodiment Construction

[0029] The present invention includes the following steps, such as Figure 4 shown:

[0030] Step 1: The UE determines the current dual-connection state. When both the MeNB and the SeNB are in the TDD mode, step 2 is performed; when one of the MeNB and the SeNB is in the TDD mode, step 4 is performed;

[0031] Step 2: The UE detects the status of the current subframe i and subframe j connected to the MeNB and the SeNB. Once the subframe i and the subframe j are S at the same time, the UE activates 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 is obtained according to Table 1, T TDD-TDD {Config 0,Config 1}...

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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 to which the present invention relates is the field of wireless communication, and more particularly, the present invention relates to a method for UE power allocation in an LTE / LTE-A TDD dual-connection scenario, which is a 3GPP LTE / LTE-A TDD dual-connection method. In the connection scenario, by predicting the state of the next subframe, the residual power allocation is more suitable for the actual demand. Background technique [0002] The deployment of small cells can effectively improve the capacity of cellular mobile networks, but with the large-scale deployment of small cells, signaling overhead may increase due to frequent handovers, thereby affecting system performance. Therefore, the dual connectivity function is proposed to solve the related problem. [0003] Dual connectivity means that the UE establishes a connection with two different eNBs and simultaneously enjoys the radio resources of the two eNBs. Ideal backhaul l...

Claims

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Application Information

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Patent Type & Authority Patents(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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