ULPC (Uplink Power Control) method and ULPC device for LTE (Long Term Evolution) system
A technology of power control and power control group, applied in the field of communication, can solve the problems of high signaling overhead, frequent delivery, and increase the processing complexity of the base station, and achieve the effect of reducing delivery and signaling overhead.
Active Publication Date: 2014-10-29
WUHAN POST & TELECOMM RES INST CO LTD
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Generally, each group will contain multiple UEs. When each UE is triggered, it will trigger the delivery of the power control group. In this way, the delivery is more frequent, the signaling overhead is larger, and the processing complexity of the base station is also increased. Spend
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[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0048]Embodiments of the present invention provide a method and device for uplink power control in an LTE system, which are used to control the delivery of power control groups when a base station performs uplink power control. This invention can reduce signaling overhead and system processing overhead. The details will be described below.
[0049] Embodiments of the present invention will combine the above figure 2 The described process introduces in detail a method for uplink power control of an LTE system provided by an embodiment of the present invention. This met...
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The invention relates to the technical field of communication, and discloses a ULPC (Uplink Power Control) method and a ULPC device for an LTE (Long Term Evolution) system. The ULPC method for the LTE system comprises the following steps: monitoring the quality information of a user uplink channel, wherein the information comprises user uplink SINR (Signal Interference Noise Ratio) information which has been accessed in a communication device and received uplink SINR times; synthesizing single UE (User Equipment) and mentoring results of the UE in the same power control group to determine whether the user adopts the way of uplink and downlink authorization or power control group to carry out power adjustment; if yes, using the corresponding transmit mode to transmit power adjustment command words. According to the method and the device, power adjustment can be carried out when the system is free of business for a long time, and the spending of signaling resources can be reduced further.
Description
technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for uplink power control of an LTE system. Background technique [0002] In an LTE (Long Term Evolution) wireless communication system, the base station generally adjusts the power of the user equipment (UE) through closed-loop power control. The base station feeds back power control information to the UE according to the UE uplink The uplink transmission power obtained by loop power control is adjusted, so that the transmission power of the UE can be controlled more precisely. [0003] When there is uplink and downlink data, the power adjustment information of the UE is sent to the UE along with the uplink and downlink scheduling authorization, and the UE adjusts its uplink transmission power according to the received power adjustment information. However, when there is no uplink and downlink data to be scheduled for a long time or semi-static...
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IPC IPC(8): H04W24/00H04W52/14H04W52/24
Inventor 印翀罗昆初
Owner WUHAN POST & TELECOMM RES INST CO LTD