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Method and apparatus for enhancing cell-edge user performance and signaling radio link failure conditions via downlink cooperative component carriers

A cell edge and downlink technology, applied in wireless communication, transmission path separation device, transmission path sub-channel allocation, etc., can solve problems such as spectrum utilization in unfavorable macro cell scenarios

Inactive Publication Date: 2012-10-24
INTERDIGITAL PATENT HLDG INC
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  • Abstract
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Problems solved by technology

However, this scheme leads to an effective frequency reuse factor greater than 1, which is not conducive to maintaining effective spectrum utilization in traditional macro cell scenarios

Method used

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  • Method and apparatus for enhancing cell-edge user performance and signaling radio link failure conditions via downlink cooperative component carriers
  • Method and apparatus for enhancing cell-edge user performance and signaling radio link failure conditions via downlink cooperative component carriers
  • Method and apparatus for enhancing cell-edge user performance and signaling radio link failure conditions via downlink cooperative component carriers

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Embodiment

[0237] 1. A method of enhancing cell edge performance of a wireless transmit / receive unit (WTRU), the method comprising:

[0238] The WTRU establishes connections with multiple sites via respective downlinks (DLs), each DL including at least one DL CC operating on the same or different frequency than one or more of the other DL component carriers (CCs); and

[0239] A station manages the transmit power that the station uses for a particular DL CC operating frequency.

[0240] 2. The method according to embodiment 1, wherein the distance from a specific one site to the cell edge of the specific one site becomes larger by increasing the transmission power of the specific one site on the specific DL CC operating frequency, And the distance from at least one other station to the respective cell edge of the at least one other station becomes smaller by reducing the transmission power of the at least one other station on the operating frequency of the specific DL CC.

[0241] 3. ...

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Abstract

A wireless communication network and method are described for enhancing cell-edge performance of a wireless transmit / receive unit (WTRU). The WTRU may establish a connection with a plurality of sites via respective downlinks (DLs). Each DL may include at least one DL component carrier (CC) that operates on a frequency that is the same or different than one or more of the other CCs. The sites may manipulate their transmit power for a particular CC operating frequency such that the distance from a particular one of the sites to its cell boundary may become larger by increasing its transmit power on the particular frequency, and the distance from at least one of the other sites to its respective cell boundary may become smaller by decreasing its transmit power on the particular frequency. Thus, a coverage overlap between different CC frequencies may be created while maintaining a frequency reuse pattern of one.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Patent Application No. 61 / 303,967, filed February 12, 2010, U.S. Provisional Patent Application No. 61 / 304,217, filed February 12, 2010, and U.S. Provisional Patent Application No. 61 / 304,217, filed February 12, 2010 The benefit of Application No. 61 / 304,371, the contents of each of which are hereby incorporated by reference. Background technique [0003] In current and evolving cellular systems, it is usually very difficult to provide consistent user experience (e.g., throughput, quality of service (QoS), etc.), because at the cell-edge the user experience is limited by interference from other cells. limit. This problem is even worse when the frequency reuse factor is 1. It has been proposed that different cells may use different sets of component carriers (CCs). However, this solution leads to an effective frequency reuse factor greater than 1, which is not conducive to maint...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/36
CPCH04L5/0062H04L5/001H04W52/40H04L5/0035H04W52/343H04L5/0073Y02B60/50H04W52/143H04W52/283H04W52/34H04W16/08Y02D30/70H04W36/0085H04W36/00837H04W36/00692H04W36/00835H04W52/281H04W52/367H04W52/242H04W24/08H04W52/325H04W52/346H04W72/21H04W52/30H04W52/146
Inventor P·J·彼得拉什基杨瑞李凯C·王T·邓S·考尔E·巴拉R·V·普拉加达
Owner INTERDIGITAL PATENT HLDG INC
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