A method and device for pdsch power distribution

A technology of power and base station equipment, which is applied in the field of PDSCH power allocation, can solve the problems of not being able to dynamically adjust and better reduce cell downlink interference, and achieve the effects of ensuring fairness, improving downlink performance, and reducing downlink interference
CN102638894BActive Publication Date: 2014-10-29DATANG MOBILE COMM EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DATANG MOBILE COMM EQUIP CO LTD
Publication Date
2014-10-29

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Abstract

The invention discloses a method and equipment for distributing PDSCH (physical downlink shared channel) power. The method comprises the following steps that: base station equipment obtains downlink path loss information corresponding to UE (user equipment); the base station equipment determines a power regulation step corresponding to the downlink path loss information through inquiring the corresponding relation between a path loss threshold interval and the power regulation step; and the base station equipment distributes the current PDSCH transmission power of the UE through the power regulation step and the average transmission power of a downlink PDSCH unit RE (resource element). According to the embodiment of the invention, the equipment can carry out dynamic adjustment on the PDSCH transmission power of the UE, can be used for effectively reducing downlink interference among subzones, promoting the downlink property of edge users, and guaranteeing the downlink fairness of the users.
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Description

technical field

[0001] The present invention relates to the field of communication technology, in particular to a method and equipment for PDSCH power allocation. Background technique

[0002] The current protocol stipulates that the base station determines the EPRE (Energy Per Resouse Element, energy per resource unit) sent downlink, and the UE (User Equipment, user equipment) assumes that the EPRE of the cell-specific RS (Reference Symbol, reference symbol) is within the entire downlink system bandwidth and It remains constant in all subframes until it receives the power information of different cell-specific RSs; the EPRE of cell-specific RSs is derived from the downlink RS transmission power and is notified by high-level parameters; and the RS transmission power is defined as the power used in all system bandwidths Linear average on downlink REs (Resource Elements, resource units) bearing cell-specific RSs.

[0003] For each OFDM (Orthogonal Frequency Division Multiplex...

Claims

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