Apparatus and method for transmitting/receiving a high speed-shared control channel in a high speed downlink packet access communication system
First Claim
1. A control channel transmitting apparatus in a communication system including a shared channel and a control channel, the shared channel being shared among a plurality of UEs (User Equipments) and spread with a plurality of channelization codes, and the control channel transmitting control information related to the shared channel to enable the UEs to receive the shared channel, the apparatus comprising:
- a controller for prioritizing the control information according to a processing urgency degree of the control information;
a first control information generator for generating high-priority control information;
a second control information generator for generating low-priority control information;
a first encoder for encoding the high-priority control information in a predetermined first encoding method;
a second encoder for encoding the low-priority control information in a predetermined second encoding method different from the first encoding method; and
a multiplexer (MUX) for multiplexing the high-priority control information and the low-priority control information to a control channel signal such that the high-priority control information precedes the low-priority control information.
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Abstract
An apparatus and method for transmitting/receiving an HS-SCCH in an HSDPA communication system including an HS-DSCH shared among a plurality of UEs and spread with a plurality of channelization codes, and the HS-SCCH for transmitting control information related with the HS-DSCH to enable the UEs to receive the shared channel. In the HS-SCCH transmitting apparatus, the control information is prioritized according to its processing urgency degree. High-priority control information and low-priority control information are generated and encoded in different encoding methods. Then the high-priority control information and the low-priority control information are multiplexed to a control channel signal such that the high-priority control information precedes the low-priority control information.
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Citations
40 Claims
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1. A control channel transmitting apparatus in a communication system including a shared channel and a control channel, the shared channel being shared among a plurality of UEs (User Equipments) and spread with a plurality of channelization codes, and the control channel transmitting control information related to the shared channel to enable the UEs to receive the shared channel, the apparatus comprising:
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a controller for prioritizing the control information according to a processing urgency degree of the control information;
a first control information generator for generating high-priority control information;
a second control information generator for generating low-priority control information;
a first encoder for encoding the high-priority control information in a predetermined first encoding method;
a second encoder for encoding the low-priority control information in a predetermined second encoding method different from the first encoding method; and
a multiplexer (MUX) for multiplexing the high-priority control information and the low-priority control information to a control channel signal such that the high-priority control information precedes the low-priority control information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A control channel receiving apparatus in a communication system including a shared channel and a control channel, the shared channel being shared among a plurality of UEs (User Equipments) and spread with a plurality of channelization codes, and the control channel transmitting control information related to the shared channel to enable the UEs to receive the shared channel, the apparatus comprising:
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a demultiplexer (DEMUX) for receiving a control channel signal and demultiplexing the control channel signal into high-priority control information and low-priority control information according to processing urgency degrees of the control information under a predetermined control;
a first decoder for decoding the high-priority control information in a predetermined first decoding method;
a second decoder for decoding the low-priority control information in a predetermined second decoding method different from the first decoding method; and
a controller for controlling the high-priority control information to be demodulated before the low-priority control information. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A control channel transmitting method in a communication system including a shared channel and a control channel, the shared channel being shared among a plurality of UEs (User Equipments) and spread with a plurality of channelization codes, and the control channel transmitting control information related to the shared channel to enable the UEs to receive the shared channel, the method comprising the steps of:
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prioritizing the control information according to a processing urgency degree of the control information;
generating high-priority control information and encoding the high-priority control information in a predetermined first encoding method;
generating low-priority control information and encoding the low-priority control information in a predetermined second encoding method different from the first encoding method; and
multiplexing the high-priority control information and the low-priority control information to a control channel signal such that the high-priority control information precedes the low-priority control information. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A control channel receiving method in a communication system including a shared channel and a control channel, the shared channel being shared among a plurality of UEs (User Equipments) and spread with a plurality of channelization codes, and the control channel transmitting control information related to the shared channel to enable the UEs to receive the shared channel, the method comprising the steps of:
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receiving a control channel signal and demultiplexing the control channel signal into high-priority control information and low-priority control information according to processing urgency degrees of the control information under a predetermined control;
decoding the high-priority control information in a predetermined first decoding method; and
decoding the low-priority control information in a predetermined second decoding method different from the first decoding method after decoding the high-priority control information. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification