Multiple source wireless communication system and method

A wireless communication system and wireless communication technology, applied in the field of wireless communication, can solve problems such as delay

Inactive Publication Date: 2009-11-04
KYOCERA CORP
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  • Description
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  • Application Information

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  • Multiple source wireless communication system and method
  • Multiple source wireless communication system and method
  • Multiple source wireless communication system and method

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Embodiment Construction

[0022] figure 1 is a block diagram illustrating a wireless communication system and method in which a subscriber station 101 receives differently encoded packets 103, 105, 107, and 109 from multiple sources. Subscriber station 101 may be an IMT 2000 CDMA multi-carrier device, also known as CDMA2000 TM , (hereinafter, "IMT 2000") subscriber stations, such as mobile phones, EVDO or EVDV cards in mobile or desktop computers, such as Personal Digital Assistants (PDAs) or PDAs combined with mobile phones, and commonly referred to as smart phones Combination communications and computing devices, etc. Other examples are also possible. Subscriber station 101 may or may not have multiple antennas or receive chains.

[0023] Access Network Controller (ANC) 125 is connected to Access Point (AN) 115 and AN 120 . ANC 125 includes processor 126 . Processor 126 controls the functions of ANC 125 . Processor 126 controls how ANC 125 interacts with the public switched telephone network (P...

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Abstract

When a cellular wireless communication device can receive communication from multiple (more than one) transmission sources, two steps are performed. First, a block of source data made up of M packets is coded (encoded) such that the block of source data can be derived at the receiver from any K (K=M+A) out of the N packets, where A<M, M<N and N is the total number of coded packets. Second, different subsets of the N packets are sent from each of the transmission sources. The cellular wireless communication device can receive packets from multiple transmission sources. For example, the block of source data can be coded by Reed-Solomon (RS) coding or rateless coding such as Tornado coding or Raptor coding. (Sometimes they are also called Fountain Codes). An example of the multiple sources is multiple base stations in a cellular communication system. Other examples of the multiple sources include multiple sectors, multiple RF channels (multiple frequencies), multiple beams (using a smart antenna system) multiple sets of tones (in an orthogonal frequency division multiplexing based system), and multi-code channel communication systems. Possible applications include W-CDMA, Wi-Max, etc. In real-time applications, such as, for example, voice communications, the real-time requirement may be satisfied in many cases in which the real-time requirements would otherwise fail. For example, in voice over internet protocol (VoIP) communications, a voice call may be clearer, or may avoid being dropped. In another example, better streaming video can be achieved.

Description

technical field [0001] The present invention relates to wireless communication, and more particularly to data encoding and decoding in wireless communication. Background technique [0002] System resources are often wasted when a cellular wireless communication device communicates with multiple (more than one) transmission sources. If multiple transmission sources transmit the same information, these sources can increase interference to other users within the system. In addition, more network resources may be consumed, for example by increasing backhaul (back haul) traffic. Backhaul traffic is traffic on the network side of the air interface (eg base station). An example of a backhaul is data traffic between a base station and a base station controller, eg in an IS-95 system. [0003] Soft handover (SHO), for example in cellular wireless communication systems such as Code Division Multiple Access (CDMA), also wastes resources. In SHO, a mobile wireless communications dev...

Claims

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Application Information

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IPC IPC(8): H04L25/14H04W28/04H04W28/06H04W36/18H04W72/08
CPCH04L2001/0096H04L1/004H04L25/14H04L1/0057
Inventor 阿米·卡尔汗
Owner KYOCERA CORP
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