Reverse link acknowledgment signaling

• US 9,270,423 B2
• Filed: 10/22/2009
• Issued: 02/23/2016
• Est. Priority Date: 10/22/2008
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Fang, Yonggang, Xin, Yu, Zhao, Xiaowu
• Primary Examiner(s): VIANA DI PRISCO, GERMAN
• Application Number:
  US12/604,330
• Publication Number:
  US 20100150069A1
• Time in Patent Office: 2,315 Days
• Field of Search: 455/450, 455/452.1, 455/452.2, 455/509, 370/328, 370/329, 370/338, 370/341
• US Class Current: 1/1
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1858 Transmission or retransmission of more than one copy of acknowledgement message
• CPC Class Codes: H04L 2001/0092 Error control systems characterised by the topology of the transmission link
• CPC Class Codes: H04W 36/18 for allowing seamless reselection, e.g. soft reselection
• CPC Class Codes: H04W 52/12 Outer and inner loops
• CPC Class Codes: H04W 52/143 Downlink power control
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/325 Power control of control or pilot channels

Abstract

Techniques, apparatuses, and systems can include mechanisms for transmitting and receiving data on one or more reverse link acknowledgement channels.

Claims

1. A method for wireless communications, comprising:

operating a reverse link, for communications between a mobile station and a plurality of base stations;

receiving data including traffic packets carrying identical information in multiple slots of a forward link frame on one or more forward link traffic channels from at least one of the base stations; and

transmitting one or more acknowledgment indications by puncturing into one or more slots among multiple transmission slots of a reverse link frame on a reverse link acknowledgment channel in response to receiving data on one or more of the forward link traffic channels, wherein each slot of the reverse link frame is associated with corresponding power control information punctured in the reverse link frame at different positions from the acknowledgment indications and the corresponding power control information is communicated with at least one of the base stations for providing power control feedback and is changed to have different values for adjusting the transmission power based on the communication with at least one of the base stations;

wherein transmitting the one or more acknowledgment indications comprises;

transmitting a first acknowledgment indication on a first reverse link acknowledgment channel in response to receiving data on the forward link fundamental traffic channel from at least one of the base stations, wherein successful transmission of the first acknowledgment indication causes the at least one of the base stations to stop transmission of data before the end of the frame;

monitoring one or more forward link traffic channels after transmitting the first acknowledgment indication to detect whether at least one of the base stations is still transmitting data; and

based upon the monitoring, repeating the transmission of the first acknowledgment indication until no traffic data is received on the forward link fundamental traffic channel from the base stations, and

wherein transmitting the one or more acknowledgment indications comprises;

boosting a transmit power associated with the transmission of the one or more acknowledgment such that a power boost amount is determined based upon the monitoring by the mobile station.

2. The method of claim 1, wherein receiving data on one or more forward link traffic channels includes receiving data on a forward link supplemental traffic channel from at least one of the base stations,

wherein transmitting one or more acknowledgment indications comprises transmitting a second acknowledgment indication on a second reverse link acknowledgment channel in response to receiving data on the forward link supplemental traffic channel from at least one of the base stations.

3. The method of claim 2, further comprising:

repeating the transmission of the second acknowledgment indication until no traffic data is received on the forward link supplemental traffic channel from the base stations.

4. The method of claim 2, further comprising:

causing a base station to stop transmission on the forward link supplemental traffic channel after receiving an acknowledgment indication on the second reverse link acknowledgment channel.

5. A method for wireless communications, comprising:

operating a reverse link, for communications between a mobile station and a plurality of base stations;

receiving data including traffic packets carrying identical information in multiple slots of a forward link frame on one or more forward link traffic channels from at least one of the base stations;

transmitting one or more acknowledgment indications by puncturing into one or more slots among multiple slots of a reverse link frame on a reverse link acknowledgment channel in response to receiving data on one or more of the forward link traffic channels based upon monitoring the one or more forward link traffic channels, wherein each slot of the reverse link frame is associated with corresponding power control information punctured in the reverse link frame at the different position from the acknowledgment indications and the corresponding power control information is communicated with at least one of the base stations for providing power control feedback and is changed to have different values for adjusting the transmission power based on the communication with at least one of the base stations,

wherein transmitting the one or more acknowledgment indications comprises;

measuring pilot strength difference between the strongest and the weakest pilots in an active set;

calculating an adjustment gain based on the pilot strength difference by limiting the pilot strength difference to an upper bound value that is less than the pilot strength difference between the strongest and the weakest pilots in the active set; and

boosting a transmit power associated with the transmission of the acknowledgment based on the adjustment gain and the monitoring of the one or more forward link traffic channels and transmitting the acknowledgment indication with boosted transmit power.

6. The method of claim 5, wherein receiving data on one or more forward link traffic channels includes receiving data on a forward link fundamental traffic channel from at least one of the base stations,

wherein transmitting one or more acknowledgment indications comprises transmitting a first acknowledgment indication on a first reverse link acknowledgment channel in response to receiving data on the forward link fundamental traffic channel from at least one of the base stations.

7. The method of claim 6, wherein transmitting one or more acknowledgment indications comprises transmitting the first acknowledgment indication with boosted transmit power on the first reverse link acknowledgment channel when a mobile station responds to receiving data on the forward link fundamental traffic channel from more than one base stations.

8. The method of claim 6, wherein receiving data on one or more forward link traffic channels includes receiving data on a forward link supplemental traffic channel from at least one of the base stations,

wherein transmitting one or more acknowledgment indications comprises transmitting a second acknowledgment indication on a second reverse link acknowledgment channel in response to reception of data on the forward link supplemental traffic channel from at least one of the base stations.

9. The method of claim 8, wherein transmitting one or more acknowledgment indications comprises transmitting the second acknowledgment indication with boosted transmit power on the second reverse link acknowledgment channel when a mobile station responds to receiving data on the forward link supplemental traffic channel from more than one base stations.

10. The method of claim 5, further comprising:

causing a base station to stop transmission on a forward link traffic channel after receiving an acknowledgment indication.

11. The method of claim 10, further comprising:

causing an operating base station to stop transmission on a forward link fundamental traffic channel based on the base station receiving an acknowledgment indication on a first reverse link acknowledgment channel.

12. The method of claim 11, further comprising:

causing the operating base station to stop transmission on a forward link supplemental traffic channel based on the base station receiving an acknowledgment indication on a second reverse link acknowledgment channel.

13. The method of claim 5, wherein transmitting one or more acknowledgment indications comprises using a Walsh code channel to transmit the acknowledgment indication.

14. The method of claim 13, wherein the Walsh code channel is different from a Walsh code channel assigned to a reverse link power control channel.

15. The method of claim 5, further comprising:

transmitting power control information on a reverse link power control channel to one or more of the base stations,

wherein transmitting one or more acknowledgment indications comprises puncturing the reverse link power control channel with the one or more acknowledgment indications.