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Method and device for grouping carrier indicator fields

A technology of carrier indicator domain and grouping method, which is applied in the direction of wireless communication and electrical components, can solve the problems of the throughput and rate performance degradation of the user end, achieve the guaranteed throughput and rate performance, reduce the number of DCI types, and reduce the system cost. The effect of spending

Inactive Publication Date: 2015-08-19
ZTE CORP
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Problems solved by technology

However, the current carrier aggregation technology does not take into account the impact of inter-cell interference, which plays an important role in inter-cell user terminal throughput and average user terminal throughput. Therefore, if the aggregated carrier part suffers serious Inter-cell interference, then, even if a larger bandwidth is obtained, the throughput and rate performance of the user end (UE) using this part of the aggregated carrier will be severely degraded, thereby offsetting the benefits of carrier aggregation

Method used

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  • Method and device for grouping carrier indicator fields
  • Method and device for grouping carrier indicator fields
  • Method and device for grouping carrier indicator fields

Examples

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Embodiment 1

[0030] The BS is divided into different carrier indicator domains according to the performance of the UE's bandwidth, peak rate, throughput, resource scheduling, etc., using priority groups, and uses different strategies for different priority groups, for example, for large peak rate, large throughput The component carrier allocation that changes frequently or in the short term and needs to use cross-carrier scheduling is set to a high priority, and the method of dynamically determining the resource of the carrier indicator field is adopted to meet the high performance requirements of the UE; for long-term unchanged The UEs that make up the carrier allocation and do not use cross-carrier scheduling set a low priority, and use the fixed carrier indicator domain resource method to meet the needs of the user terminal UE; for other intermediate priority groups, dynamic and fixed carrier indicators can be used Mixing of server and domain resources. The method for using the carrier ...

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Abstract

The invention discloses a method of carrier wave indicator domain grouping and an apparatus thereof. The method comprises the following steps: a base station determines a performance parameter; according to the performance parameter, the base station finishes priority grouping of user equipment (UE); according to the priority grouping of the UE, carrier wave indicator domain resource configuration is determined. According to the method and the apparatus in the invention, system overhead and unnecessary complexity are decreased, and throughput and rate performance of the UE using aggregation carrier wave are ensured.

Description

technical field [0001] The invention relates to a wireless communication network, in particular to a design method of a carrier indicator for cross-carrier scheduling in carrier aggregation. Background technique [0002] At present, in order to support a larger bandwidth in the current wireless communication system in the Long Term Evolution (LTE) of the Third Generation Partnership Project, a new aggregation method, carrier aggregation, is proposed. As a key technology in future communication systems, carrier aggregation aggregates different carriers to form carriers with larger bandwidths, and then provides larger bandwidths for user terminals (UEs) with stronger capabilities. For example, in LTE- More than 100MHz bandwidth in Advanced. However, the current carrier aggregation technology does not take into account the impact of inter-cell interference, which plays an important role in inter-cell user terminal throughput and average user terminal throughput. Therefore, if ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/10H04W72/08H04W72/12H04W72/54
Inventor 魏巍
Owner ZTE CORP
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