RSMA control device and method for mobile communication system

• US 6,928,066 B1
• Filed: 11/09/1999
• Issued: 08/09/2005
• Est. Priority Date: 11/09/1998
• Status: Expired due to Term

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kang, Hee-Won, Moon, Hi-Chan, Kim, Jae-Yoel, Ahn, Jae-Min
• Primary Examiner(s): Urban, Edward F.
• Assistant Examiner(s): LE, LANA N
• Application Number:
  US09/436,902
• Time in Patent Office: 2,100 Days
• Field of Search: 370/328, 370/329, 370/336, 370/342, 370/280, 370/232, 370/335, 370/341, 370/338, 455/522
• US Class Current: 370/342
• CPC Class Codes: H04J 13/0048 Walsh
• CPC Class Codes: H04W 28/26 Resource reservation
• CPC Class Codes: H04W 52/0235 where the received signal is a power saving command
• CPC Class Codes: H04W 52/04 TPC
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/44 in connection with interruption of transmission
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 74/002 Transmission of channel access control information
• CPC Class Codes: H04W 74/004 in the uplink, i.e. towards network
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An access request message transmission device for a mobile station in a CDMA communication system employing RSMA in which a base station assigns a reverse common channel in response to an access request message from the mobile station, and the mobile station transmits a message to the base station over the assigned reverse common channel. The access request message transmission device includes a hash ID generator for generating a multi-bit hash ID for exclusively using the reverse common channel; a traffic information generator for generating multi-bit traffic information representing traffic information on the reverse common channel; and an access channel transmitter for generating the access request message using the hash ID and the traffic information, and transmitting the generated access request message to the base station over an access channel.

Claims

1. An access request message formatting method for a mobile method for a mobile station in a CDMA (Code Division Multiple Access) communication system employing RSMA (Reserve Multiple Access) in which a base station assigns a reverse common channel in response to an access request message from the mobile station, and the mobile station transmits a message to the base station over the assigned reverse common channel, comprising the steps of:

generating a multi-bit ID for enabling the mobile station to exclusively use the reverse common channel;

generating multi-bit traffic representing traffic information on the reverse common channel;

generating CRC bits and tail bits; and

scrambling said multi-bit traffic information;

wherein the traffic information includes traffic transfer rate information, one-frame length information, and message length information.

2. The access request message formatting method as claimed in claim 1, wherein the ID is created with a hashed value of an electronic serial number (ESN).

3. An access request message transmission device for a mobile station in a CDMA communication system employing RSMA in which a base station assigns a reverse common channel in response to an access request message from the mobile station, and the mobile station transmits a message to the base station over the assigned reverse common channel, comprising:

an ID generator for generating a multi-bit ID for exclusively using the reverse common channel;

a traffic information generator for generating multi-bit traffic information representing traffic information on the reverse common channel;

an access channel transmitter for generating the access request message using the ID and the traffic information, and transmitting the generated access request message to the base station over an access channel; and

a scrambling circuit for scrambling said multi-bit traffic information;

wherein the traffic information includes traffic transfer rate information, one-frame length information, and message length information.

4. The access request message transmission device as claimed in claim 3, wherein the access channel transmitter comprising a CRC generator and a tail bit generator, wherein the access channel transmitter creates an access request message comprised of the ID, traffic information, CRC bits and tail bits.

5. The access request message transmission device as claimed in claim 3, wherein the ID generator creates the ID based on a hashed value of an ESN.

6. An access request message transmission method for a mobile station in a CDMA communication system employing RSMA in which a base station assigns a reverse common channel in response to an access request message from the mobile station, and the mobile station transmits a message to the base station over the assigned reverse common channel, comprising the steps of:

generating a multi-bit ID for exclusively using the reverse common channel;

generating a multi-bit traffic information representing traffic information on the reverse common channel;

generating the access request message using the ID and the traffic information;

scrambling said multi-bit traffic information; and

transmitting the generated access request message to the base station over an access channel;

wherein the traffic information includes traffic transfer rate information, one-frame length information, and message length information.