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Channel assignments in a wireless communication system having spatial channels including grouping existing subscribers in anticipation of new subscribers

A new user and redistribution technology, applied in wireless communication, communication between multiple stations, broadcast service distribution, etc., can solve the problems of short call duration, short duration, limited transmission time, etc.

Inactive Publication Date: 2004-06-23
INTEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, transmissions from new users are very limited in nature (i.e. the time a new user is connected to the communication system is very brief), and therefore selection based on this limited amount of data is not optimal
The transmission characteristics of existing users are relatively easy to quantify due to the length of time for the connection establishment of existing users
Also, the duration of some calls is very short, so it is not desirable to pair new users with such short call users

Method used

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  • Channel assignments in a wireless communication system having spatial channels including grouping existing subscribers in anticipation of new subscribers
  • Channel assignments in a wireless communication system having spatial channels including grouping existing subscribers in anticipation of new subscribers
  • Channel assignments in a wireless communication system having spatial channels including grouping existing subscribers in anticipation of new subscribers

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Embodiment Construction

[0031] figure 1 A wireless SDMA TD / FD / CDMA system (wireless system 10) is given in , wherein a cell site 100 serving a plurality of subscriber stations (figuratively represented as handheld devices) 20, 22, 24 may be connected to a wide area network (WAN) 56, which provides any required data services and externally connects to the intermediate wireless system 10. Switching network 58 interfaces with WAN 56 to provide multi-channel duplex operation with the WAN by switching incoming WAN data onto line 60 of cell site 100 and switching output signals from cell site 100 to the WAN over line 54. The input line 60 is applied to a signal modulator 62 which generates a modulated signal 64 for each subscriber station 20-24 with which the cell site 100 communicates. A set of spatial multiplexing weights 74 for each user 20-24 is applied to the individual modulated signals in the spatial multiplexer 66 to generate the spatial multiplexed signals transmitted by a set of multi-channel tr...

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Abstract

Methods and systems are provided for assigning channels in a spatial division multiple access communication network. The network includes a plurality of conventional channels some of which are configurable to be shared concurrently by plural subscribers. The method includes determining combinations of subscribers from the existing subscribers. Existing subscribers are reassigned to share channels thereby freeing resources for new subscribers.

Description

[0001] The present invention generally relates to wireless communication systems. Background of the invention [0002] Portions of the radio frequency spectrum are typically allocated for operation of wireless communication systems. The allocated portion of the frequency spectrum is in turn divided into communication channels, and the channels are distinguished by frequency, time or code allocations, or a combination of these allocations. Each of these communication channels is referred to as a regular channel, and unless otherwise specified, a regular channel typically corresponds to a full-duplex channel. The establishment of a communication link in a communication system depends not only on whether there is an available regular channel, but also on the quality of communication using a given available regular channel. [0003] In wireless communication systems, conventional channels are used for communication between base stations (sometimes called cell stations) and subscr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04J99/00H04W4/08H04W16/06H04W72/04
CPCH04W4/08H04W72/0493H04W72/046H04W72/52H04W16/06
Inventor A·A·卡萨皮P·G·库里A·-F·罗杰
Owner INTEL CORP
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