Device and method for assigning spreading code for reverse common channel message in CDMA communication system
First Claim
1. A common channel message communicating device in a base station of a CDMA communication system, comprising:
- a control message generator for generating a control message including information representative of a spreading code for spreading a reverse common channel message; and
a forward common channel transmitter for transmitting the control message on a forward common channel, wherein the reverse common channel message is sent to the base station in predetermined time intervals.
1 Assignment
0 Petitions
Accused Products
Abstract
There are provided a common channel message communicating device and method in a CDMA communication system. In a base station of the common channel message communicating device, a control message generator generates a control message including information representative of a spreading code for spreading a reverse common channel message, and a forward common channel transmitter transmits the control message on a forward common channel. In a mobile station, a control message analyser analyses information representative of an assigned spreading code included in the control message received on the forward common channel, a spreading code generator generates a spreading code based on the spreading code information, and a channel transmitter spreads the reverse common channel message by the spreading code and transmits the spread reverse common channel message.
-
Citations
72 Claims
-
1. A common channel message communicating device in a base station of a CDMA communication system, comprising:
-
a control message generator for generating a control message including information representative of a spreading code for spreading a reverse common channel message; and
a forward common channel transmitter for transmitting the control message on a forward common channel, wherein the reverse common channel message is sent to the base station in predetermined time intervals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
message on a reverse common channel;
generating a spreading code based on the spreading code information upon receipt of a response message for the control message; and
despreading the reverse common channel message by the generated spreading code.
-
-
12. A common channel message communicating device in a mobile station of a CDMA communication system, comprising:
-
a control message analyzer for analyzing information representative of an assigned spreading code included in a control message received on a forward common channel;
a spreading code generator for generating a spreading code based on the spreading code information; and
a channel transmitter for spreading a reverse common channel message by the spreading code and transmitting the spread reverse common channel message, wherein the reverse common channel message is sent to the base station in predetermined time intervals. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A common channel message communicating device in a CDMA communication system, comprising:
-
a base station having a control message generator for generating a control message including information representative of a spreading code for spreading a reverse common channel message, and a forward common channel transmitter for transmitting the control message on a forward common channel; and
a mobile station having a control message analyzer for analyzing information representative of an assigned spreading code included in the control message received on the forward common channel, a spreading code generator for generating a spreading code based on the spreading code information, and a channel transmitter for spreading the reverse common channel message by the spreading code and transmitting the spread reverse common channel messages, wherein the reverse common channel message is sent to the base station in predetermined time intervals. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
receiving a message on a reverse common channel;
generating a spreading code based on the spreading code information upon receipt of a response message for the control message; and
despreading the reverse common channel message by the generated spreading code.
-
-
32. The device of claim 22, wherein the mobile station further has a message generator for generating a message requesting assignment of a spreading code to spread a reverse common channel message when the mobile station is to send the reverse common channel message.
-
33. The device of claim 32, wherein the spreading code generator generates the spreading code using a public long code.
-
34. The device of claim 22, wherein the control message generator generates a control message including information representative of a spreading code to spread a response message on a reverse common channel when the base station needs a rapid response to a forward common channel message from the mobile station.
-
35. The device of claim 34, wherein the spreading code information is an access channel number, the spreading code generator generates the spreading code using an access channel long code mask corresponding to the access channel number, and the base station does not assign the same access channel number to a different mobile station while the mobile station uses the access channel number, to prevent message contention between the mobile stations.
-
36. The device of claim 34, wherein the spreading code information is a specific long code ID prepared to prevent message contention, and the spreading code generator generates the spreading code using a long code corresponding to the long code ID.
-
37. A common channel message communicating method in a base station of a CDMA communication system, comprising the steps of:
-
generating a control message including information representative of a spreading code for spreading a reverse common channel message; and
transmitting the control message on a forward common channel, wherein the reverse common channel message is sent to the base station in predetermined time intervals. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
-
-
48. A common channel message communicating method in a mobile station of a CDMA communication system, comprising the steps of:
-
analysing information representative of an assigned spreading code included in a control message received on a forward common channel;
generating a spreading code based on the spreading code information; and
spreading a reverse common channel message by the spreading code and transmitting the spread reverse common channel message, wherein the reverse common channel message is sent to the base station in predetermined time intervals. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57)
-
-
58. A common channel message communicating method in a CDMA communication system, comprising the steps of:
-
causing a base station to generate a control message including information representative of a spreading code for spreading a reverse common channel message;
causing the base station to transmit the control message on a forward common channel;
causing a mobile station to analyse the information representative of an assigned spreading code included in the control message received on the forward common channel;
causing the mobile station to generate a spreading code based on the spreading code information; and
causing the mobile station to spread the reverse common channel message by the spreading code and transmit the spread reverse common channel message, wherein the reverse common channel message is sent to the base station in predetermined time intervals. - View Dependent Claims (59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
-
Specification