Interference Floor Shaping Sample Clauses

Interference Floor Shaping. As mentioned above, the distances to strong transmitters as seen from an individual UE might in some cases be very large, when distant transmitters have almost line-of-sight channels to an UE. Countering such effects by forming cooperation areas over 7 or more sites seems to be unrealistic and ineffective. Therefore, these far-off interferers will generate an interference floor that may significantly limit the potential CoMP gains. This is illustrated by the 2-user rate region in Figure 5.4. Assuming an interference limited scenario with a very low noise floor, the rate region without cooperation will be limited by the inter-cell interference (blue area). The optimum rate region with CoMP is (or might be) just limited by the maximum modulation and coding schemes (MCS) for example 64QAM9/10 for LTE. This assumes that that the interference from other clusters is below the noise floor. In case there is a noise floor generated by the out-of- cluster cells, the rate region will be reduced significantly to the red area. (A similar effect would happen in case of a significant noise floor, but this would violate our main assumption of being in an interference-limited scenario.) Interference floor shaping as such is difficult to achieve in conventional networks as there is typically a trade-off between reduced interference at the outside of the cell versus signal quality within the cell, leaving relatively little room for optimization. From the beginning of cellular radio systems, antenna tilting has been used to localize signal power to the vicinity of the base stations. It is commonly used with good results for network planning [WLS+00].16 16 For the LTE Advanced case 1, increasing and optimizing the antenna tilts for all eNBs from 7 to 15 degree provided a substantial gain in spectral efficiency helping to fulfil the target requirements of e.g.
View SourceView Similar (2)

Related to Interference Floor Shaping

  • Interference or Impairment If a Party (“Impaired Party”) reasonably determines that the services, network, facilities, or methods of operation, of the other Party (“Interfering Party”) will or are likely to interfere with or impair the Impaired Party’s provision of services or the operation of the Impaired Party’s network or facilities, the Impaired Party may interrupt or suspend any Service provided to the Interfering Party to the extent necessary to prevent such interference or impairment, subject to the following: 26.3.1 Except in emergency situations (e.g., situations involving a risk of bodily injury to persons or damage to tangible property, or an interruption in Customer service) or as otherwise provided in this Agreement, the Impaired Party shall have given the Interfering Party at least ten (10) days’ prior written notice of the interference or impairment or potential interference or impairment and the need to correct the condition within said time period; and taken other actions, if any, required by Applicable Law; and, 26.3.2 Upon correction of the interference or impairment, the Impaired Party will promptly restore the interrupted or suspended Service. The Impaired Party shall not be obligated to provide an out-of-service credit allowance or other compensation to the Interfering Party in connection with the suspended Service.

  • Cost of the Work The sum of all allowable costs necessarily incurred and paid by Contractor in the proper performance of the Work.

  • Elevators Landlord shall provide passenger elevator service during normal business hours to Tenant in common with Landlord and all other tenants. Landlord shall provide limited passenger service at other times, except in case of an emergency.

  • Landscaping The Owner will, before its plan of subdivision is released for registration, pay to the Town in lieu of planting any trees on the public streets within the plan, the amount shown for the purpose upon Schedule “J”.

  • Lighting A system of fixtures providing or controlling the light sources used on or near the airport or within the airport buildings. The field lighting includes all luminous signals, markers, floodlights, and illuminating devices used on or near the airport or to aid in the operation of aircraft landing at, taking off from, or taxiing on the airport surface.