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AssigneesLG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei University
InventorsJihwan Kim, Byounghoon Kim, Jeonghoon Mo, Jeongho Kwak, Jaewon Lim, Song Chong
Estimating the term…
A method for controlling inter-cell interference in a wireless communication system includes receiving information about an interference control period from a central controller, performing carrier sensing based activation competition in the interference control period, and scheduling user equipments served by the BS if the BS wins the carrier sensing based activation competition. The carrier sensing based activation competition may be based on a BS-specific back-off value related to a BS-specific weight. The BS-specific weight may be determined as the sum of products of an instantaneous throughput and a differential value of an average throughput based utility function, for all UEs served by the BS.
A method for controlling inter-cell interference in a wireless communication system, which is performed by a base station (BS), the method comprising:
A base station (BS) for controlling inter-cell interference in a wireless communication system, the BS comprising:
Dependencies are inferred from the claim text.
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Arrangements for allocating sub-channels of the transmission path: distributed allocation, i.e. involving a plurality of allocating devices, each…
Allocation or scheduling criteria for wireless resources: based on quality criteria
Non-scheduled access, e.g. ALOHA: using carrier sensing, e.g. carrier sense multiple access [CSMA]
Managed by the network, e.g. network or access point is leader and terminal is follower: using a pre-established activity schedule, e.g. traffic…
About 7 years 3 months of term left · ends 4 Feb 2034 (estimated)
1. Field of the Invention
The present invention relates to a wireless communication system, and more specifically, to an apparatus and method for controlling inter-cell interference.
2. Discussion of the Related Art
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:
FIG. 1 illustrates exemplary on/off patterns of cells or base stations;
FIG. 2 illustrates a superframe structure according to an embodiment of the present invention;
The embodiments of the present invention are applicable to a variety of wireless access systems such as CDMA (code division multiple access), FDMA (frequency division multiple access), TDMA (time division multiple access), OFDMA (orthogonal frequency division multiple access), SC-FDMA (single carrier frequency division multiple access, etc. CDMA can be implemented as a radio technology such as UTRA (universal terrestrial radio access or CDMA2000. TDMA can be implemented as radio technology such as GSM (global system for mobile communications)/GPRS (general packet radio service)/EDGE (enhanced data rates for GSM evolution). OFDMA can be implemented as a radio technology such as IEEE 802.11 (Wireless Fidelity (Wi-Fi)), IEEE 802.16 (Worldwide interoperability for Microwave Access (WiMAX)), IEEE 802-20, Evolved UTRA (E-UTRA), etc. UTRA is a part of UMTS (universal mobile telecommunications system). 3GPP LTE is a part of E-UMTS (evolved UMTS) using E-UTRA, employing OFDMA for downlink and SC-FDMA for uplink. LTE-A is an evolution of 3GPP LTE.
For clarity, the following description focuses on 3GPP LTE/3GPP LTE-A. However, technical features of the present invention are not limited thereto. It should be noted that specific terms disclosed in the present invention are proposed for convenience of description and better understanding of the present invention, and the use of these specific terms may be changed to other formats within the technical scope or spirit of the present invention.
In some instances, well-known structures and devices are omitted in order to avoid obscuring the concepts of the present invention and the important functions of the structures and devices are shown in block diagram form. The same reference numbers will be used throughout the drawings to refer to the same or like parts.