Granted Patent B2

US 9,088,345 · App. 14/206,976 · Granted Jul 21, 2015

Inventors: Hua Xu (Ottawa, CA); Youn Hyoung Heo (Kangwon-do, KR); Zhijun Cai (Ashburn, VA); Andrew Mark Earnshaw (Kanata, CA); Mo-Han Fong (Sunnyvale, CA); Sean Michael McBeath (Keller, TX); Robert Mark Harrison (Grapevine, TX)

Assignee: BlackBerry Limited

H04B1/69H04B7/0678H04J13/0077H04J13/18H04L1/0009H04L1/0618H04L1/0675H04L1/1671H04L5/003H04L5/0094H04J2013/165H04J2211/005H04L5/0026H04L27/2602

Abstract

Claims (64)

1. A non-transitory computer readable medium, having stored thereon instructions for execution by a wireless device for performing a method, the method comprising:

detecting a downlink control channel, wherein said downlink control channel includes a first control channel element;

determining a first index using the location of said first control channel element;

determining a second index based on said first index;

determining a first indicator of a first orthogonal resource using said first index;

determining a second orthogonal resource using said second index;

spreading an uplink message based on said first orthogonal resource to form a first spread signal;

spreading said uplink message using said second orthogonal resource to form a second spread signal;

transmitting said first spread signal using a first antenna; and

transmitting said second spread signal using a second antenna.

2. The non-transitory computer readable medium of claim 1 , wherein said determining a second index uses the location of a second control channel element of said downlink control channel.

3. The non-transitory computer readable medium of claim 1 , wherein said determining a second index further comprises:

obtaining said second index from another downlink message.

4. The non-transitory computer readable medium of claim 1 , wherein said determining a second index uses the location of said first control channel element.

5. The non-transitory computer readable medium of claim 1 , wherein said determining a second index uses said first index.

6. A non-transitory computer readable medium, having stored thereon instructions for execution by a wireless device for performing a method, the method comprising:

detecting a downlink control channel by the wireless device from a base station;

determining a plurality of indices using said downlink control channel;

determining a plurality of indicators of a plurality of orthogonal resources using said plurality of indices;

generating a plurality of orthogonal signals by applying said plurality of orthogonal resources to an uplink message; and

transmitting said plurality of orthogonal signals from said wireless device to said base station.

7. The non-transitory computer readable medium of claim 6 , wherein said transmitting said plurality of orthogonal signals from said wireless device to said base station further comprises:

using a plurality of antennas of said wireless device to transmit said plurality of orthogonal signals.

8. The non-transitory computer readable medium of claim 6 , wherein said determining a plurality of indices using said downlink control channel further comprises:

determining a first index of said plurality of indices using the location of a first control channel element of a plurality of control channel elements, wherein said downlink control channel includes said plurality of control channel elements; and

determining the other indices of said plurality of indices using another downlink message.

9. The non-transitory computer readable medium of claim 6 , wherein said determining a plurality of indices using said downlink control channel further comprises:

determining a first index of said plurality of indices using the location of a first control channel element of a plurality of control channel elements, wherein said downlink control channel includes said plurality of control channel elements; and

determining the other indices of said plurality of indices using the location of said first control channel element of said plurality of control channel elements.

10. The non-transitory computer readable medium of claim 6 , wherein said determining a plurality of indices using said downlink control channel further comprises:

determining a first index of said plurality of indices using the location of a first control channel element of a plurality of control channel elements, wherein said downlink control channel includes said plurality of control channel elements; and

determining the other indices of said plurality of indices using said first index of said plurality of indices.

11. A method for operating a user equipment in a wireless communication system, the method comprising:

detecting a downlink control channel, wherein said downlink control channel includes a first control channel element;

determining a first index using the location of said first control channel element;

determining a second index based on said first index;

determining a first indicator of a first orthogonal resource using said first index;

determining a second indicator of a second orthogonal resource based on said second index;

spreading an uplink message using said first orthogonal resource to form a first spread signal;

spreading said uplink message using said second orthogonal resource to form a second spread signal;

transmitting said first spread signal using a first antenna;

transmitting said second spread signal using a second antenna; and

performing a random access procedure using single antenna transmission.

12. The method of claim 11 , wherein said determining a second index uses the location of a second control channel element of said downlink control channel.

13. The method of claim 11 , further comprising receiving a higher-layer message to configure an uplink multiple antenna operation of the wireless device.

14. A device in a wireless communication system, comprising:

a processor coupled to a memory containing processor-executable instructions;

a receiver and a transmitter coupled to said processor;

wherein said receiver is operable to:

detect a downlink control channel from a base station;

wherein said processor is operable to:

derive a first index using the location of a first control channel element of said downlink control channel;

derive a second index based on said first index;

determine a first indicator of a first orthogonal resource using said first index;

determine a second indicator of a second orthogonal resource using said second index;

generate a first orthogonal signal by applying said first orthogonal resource to an uplink message;

generate a second orthogonal signal by applying said second orthogonal resource to said uplink message; and

wherein said transmitter is operable to:

transmit said first and said second orthogonal signals to said base station; and

perform a random access procedure using single antenna transmission.

15. The device of claim 14 , wherein said processor is further operable to derive said second index using the location of a second control channel element of said downlink control channel.

16. The device of claim 14 , wherein said receiver is further operable to receive a higher-layer message to configure an uplink multiple antenna operation of the wireless device.

17. The non-transitory computer readable medium of claim 1 , wherein the method further comprises performing a random access procedure using single antenna transmission.

18. The non-transitory computer readable medium of claim 1 , wherein the method further comprises receiving a higher-layer message to configure an uplink multiple antenna operation of the wireless device.

Assignments (10)

Continuity (3)