Channel assignment and call admission control for spatial division multiple access communication systems

A space channel and channel allocation technology, applied in the direction of diversity/multi-antenna system, communication between multiple stations, transmission control/equalization, etc., can solve the problem that the channel cannot be used by two users

Inactive Publication Date: 2007-09-19
INTEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016]If two users with similar signal-in-space are assigned to the same common channel on the same ba...

Method used

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  • Channel assignment and call admission control for spatial division multiple access communication systems
  • Channel assignment and call admission control for spatial division multiple access communication systems
  • Channel assignment and call admission control for spatial division multiple access communication systems

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Embodiment Construction

[0037] Channel allocation in full-duplex channels includes selection of uplink (from user to cell site) and downlink (from cell site to user). The case of half-duplex channel allocation can be viewed as a special case of the full-duplex problem. The interference on the uplink channel is mainly from other subscriber stations, while the interference on the downlink channel is mainly caused by the base stations of other cells. Therefore, the quality of communication on the uplink and downlink is generally different. In one embodiment of the invention, since there is no restriction in selecting uplink and downlink channels, uplink and downlink channel assignments are performed independently, respectively, offering the potential to achieve the highest system capacity. However, many practical systems impose a fixed relationship between uplink and downlink channels, so independent selection is not possible.

[0038] For example, in the Personal Handset System (PHS) standard (Associ...

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Abstract

The invention discloses a method for allocating channels in a wireless communication station and a call access control method. In the invention, for each of a plurality of common channels, interference levels achieved by common channel assignment can be computed, which are functions of space feature of a user station which is communicated with a base station; and the interference levels responding the computation, which select the common channels from a plurality of common channels for assignment.

Description

[0001] This application is a divisional application of the application with the application number 97181158.X and the title of the invention "Channel allocation and incoming call control for space division multiplex communication system" submitted on June 30, 1999 [0002] This application is a continuation of pending US Patent Application Serial No. 08 / 735,520, filed October 23, 1996, and entitled "Spectrum Efficient High Capacity Wireless Communication System Using Space-Time Processing." technical field [0003] The present invention relates to a wireless communication system, in particular to a wireless network with a fixed path or a non-fixed path, which is used with systems such as Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA) and / or Code Division Multiple Access (CDMA) systems. Multiple access systems combined with Space Division Multiple Access (SDMA) technology. Background technique [0004] Wireless communication systems are typica...

Claims

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Application Information

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IPC IPC(8): H04Q7/36H04Q7/38H04B7/10H04B7/005H04B7/04H04B7/06H04B7/08H04B7/26H04L12/28H04W16/14H04W16/28H04W52/34H04W52/50H04W64/00H04W72/04H04W72/08H04W74/00H04W76/02
CPCH04B7/0617H04W76/02H04W64/00H04L27/20H04B7/086H04B7/0491H04W74/00H04W16/28H04W52/50H04W72/044H04W52/34H04B7/0845H04W72/082H04W16/14H04B7/0408H04W72/02H04W72/046H04W76/10H04W72/541
Inventor 路易斯·C·云比约恩·E·奥特斯滕
Owner INTEL CORP
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