Apparatus and method for gated transmission in CDMA communication system

• US 6,917,607 B1
• Filed: 05/31/2000
• Issued: 07/12/2005
• Est. Priority Date: 05/31/1999
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Yoon, Soon-Young, Maeng, Seung-Joo, Yun, Yu-Suk, Yeom, Jae-Heung
• Primary Examiner(s): NGUYEN, STEVEN H D
• Application Number:
  US09/583,523
• Time in Patent Office: 1,868 Days
• Field of Search: 370/335, 370/342, 370/522, 375/130, 455/522
• US Class Current: 370/342
• CPC Class Codes: H04B 2201/70701 featuring pilot assisted reception
• CPC Class Codes: H04B 2201/709709 Methods of preventing interference
• CPC Class Codes: H04J 13/00 Code division multiplex systems for frequency hopping H04B1/713
• CPC Class Codes: H04W 28/22 Negotiating communication rate
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

An apparatus and method for gated transmission in a CDMA communication system. A mobile station in the CDMA communication system transmits a reverse pilot signal at a reverse gating rate different from a forward gating rate in a gated mode in a control hold state, and a base station transmits a forward pilot signal at the forward gating rate different from the forward gating rate in a gated mode.

Claims

1. An apparatus for setting different gating rates for an uplink and a downlink in a CDMA communication system, comprising:

a mobile station having a gated transmission controller for controlling transmission of an uplink dedicated control channel signal in a gated mode according to an uplink gating rate; and

a base station having a gated transmission controller for controlling transmission of a downlink dedicated control channel signal in a gated mode according to a downlink gating rate different from the uplink gating rate,

wherein the uplink gating rate and the downlink gating rate are compared to set the downlink gating rate different from the uplink gating rate.

2. The apparatus as claimed in claim 1, wherein the gated transmission controller of the mobile station transmits the uplink dedicated control channel signal in the gated mode at a changed gating rate on the uplink.

3. The apparatus as claimed in claim 1, wherein the gated transmission controller of the mobile station transmits the uplink dedicated control channel signal in the gated mode at a fixed gating rate on the uplink.

4. The apparatus as claimed in claim 2, wherein the gated transmission controller of the base station transmits the downlink dedicated control channel signal in the gated mode at a fixed gating rate on the downlink.

5. The apparatus as claimed in claim 3, wherein the gated transmission controller of the base station transmits the downlink dedicated control channel signal in the gated mode at a changed gating rate on the downlink.

6. A method of setting different gating rates for a downlink and an uplink in a CDMA communication system, comprising:

transmitting an uplink dedicated control channel signal in a gated mode according to an uplink gating rate when there is no data to transmit for a predetermined time; and

transmitting a downlink dedicated control channel signal in a gated mode according to a downlink gating rate different from the uplink gating rate,

wherein the uplink gating rate and the downlink gating rate are compared to set the downlink gating rate different from the uplink gating rate.

7. The method as claimed in claim 6, wherein the uplink dedicated control signal is transmitted in the gated mode at a changed gating rate on the uplink.

8. The method as claimed in claim 6, wherein the uplink dedicated control signal is transmitted in the gated mode at a fixed gating rate on the uplink.

9. The method as claimed in claim 7, wherein the gating rate of the downlink is 1.

10. The method as claimed in claim 7, wherein the gating rate of the downlink is 1/2.

11. The method as claimed in claim 8, wherein the gating rate of the uplink is 1.

12. The method as claimed in claim 8, wherein the gating rate of the uplink is 1/2.

13. The method as claimed in claim 7, wherein the downlink dedicated control signal is transmitted in the gated mode at a fixed gating rate on the downlink.

14. The method as claimed in claim 8, wherein the downlink dedicated control signal is transmitted in the gated mode at a changed gating rate on the downlink.

15. The method as claimed in claim 13, wherein the gating rate of the downlink is 1.

16. The method as claimed in claim 13, wherein the gating rate of the downlink is 1/2.

17. A channel transmission method in a CDMA communication system, comprising the step of transmitting data at a forward gating rate different from a reverse gating rate in a gated mode, wherein the reverse gating rate and the forward gating rate are compared to set the forward gating rate different from the reverse gating rate.

18. A channel transmission apparatus in a CDMA communication system, comprising a gating controller for transmitting data at a forward gating rate different from a reverse gating rate in a gated mode, wherein the reverse gating rate and the forward gating rate are compared to set the forward gating rate different from the reverse gating rate.