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ICIC (Inter-cell interference co-ordination) parameter transmission method and resource distribution method, device and system

A parametric, multi-carrier system technology, applied in the field of communication, to achieve the effect of reasonable allocation of carrier resources

Active Publication Date: 2010-08-04
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0003] In view of this, the present invention provides a long-term evolution multi-carrier system inter-cell interference coordination parameter transmission method and a carrier resource allocation method, device and system to solve the problem of how to indicate HII and OI for each carrier when the cell identities of multiple component carriers are the same problem, realize ICIC transmission, and reasonably allocate carrier resources

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  • ICIC (Inter-cell interference co-ordination) parameter transmission method and resource distribution method, device and system
  • ICIC (Inter-cell interference co-ordination) parameter transmission method and resource distribution method, device and system

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Embodiment Construction

[0051] For the current LTE, because the downlink behavior is Orthogonal Frequency Division Multiplexing (OFDM) and the uplink behavior is Single Carrier-Orthogonal Frequency Division Multiplexing (SC-OFDM), inter-cell interference as the main disturbance. Moreover, unlike Code Division Multiple Access (CDMA) systems that use soft capacity to implement co-frequency networking, LTE cannot directly implement co-frequency networking. Therefore, how to reduce inter-cell interference and realize co-frequency networking is a major aspect of LTE. question. There are multiple methods in the prior art to eliminate inter-cell interference: beamforming at the transmitter, Interference Rejection Combining (Interference Rejection Combining, IRC), ICIC, power control, and bit-level scrambling.

[0052] Among them: ICIC is implemented mainly by restricting resources, mainly divided into frequency resource restriction and power resource restriction. At present, it has been determined in LTE ...

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Abstract

The invention discloses an ICIC parameter transmission method of a long-term evolution multi-carrier system, comprising the following steps of: determining the load and the interference conditions of all carriers or carrier sets in cells; and transmitting service cell information to each neighboring cell, wherein the service cell information carries cell identifications and carrier or carrier setidentifications and indicates the ICIC parameters of the load or the interference conditions of the carriers or the carrier sets corresponding to the carrier or carrier set identifications. The invention also discloses a carrier resource distribution method of the long-term evolution multi-carrier system, and a device and a system for realizing the two methods. The invention makes the transmission method of the ICIC parameters in the long-term evolution multi-carrier system clear and can distinguish a plurality of member carriers or carrier sets with same cell identifications through the modeof endowing each member carrier or carrier set with different identifications (such as numbers), thereby ensuring that the ICIC parameters between a source cell and a target cell can be smoothly transmitted.

Description

technical field [0001] The present invention relates to the field of communication technology, and more specifically, to a long-term evolution (LTE) multi-carrier system inter-cell interference coordination (Inter-cell Interference Co-ordination, ICIC) parameter transmission method and carrier resource allocation method, device and system . Background technique [0002] In the LTE system, since the uplink transmission is a single carrier, the two parameters of High Interference Indication (High Interference Indication, HII) and Overload Indication (Overload Indication, OI) can be respectively given based on the cell ID corresponding to the carrier. However, for the Long Term Evolution multi-carrier system, the uplink transmission of certain terminals with higher capability levels will no longer be restricted by a single carrier, that is, the uplink transmission may occupy multiple component carriers. If the cell IDs of multiple component carriers different, the processing m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/16H04W72/04
CPCH04W72/0426H04W16/04H04W72/082H04W72/0486H04W28/08H04W72/27H04W72/52H04W72/541
Inventor 彭莹潘学明胡海静索士强
Owner DATANG MOBILE COMM EQUIP CO LTD
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