Method and apparatus for transmitting and receiving different signal types in communication systems

• US 9,485,070 B2
• Filed: 12/13/2013
• Issued: 11/01/2016
• Est. Priority Date: 07/30/2007
• Status: Active Grant

• Current Assignee: Unwired Planet International Limited (Brevet Capital)
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Papasakellariou, Aris, Cho, Joon-Young
• Primary Examiner(s): Jung, Min
• Application Number:
  US14/106,082
• Publication Number:
  US 20140105189A1
• Time in Patent Office: 1,054 Days
• US Class Current: 1/1
• CPC Class Codes: H04L 27/261 Details of reference signals
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/026 using code division
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

A method and apparatus are provided for transmitting a Reference Signal (RS) by a User Equipment (UE) in a wireless communication system. The method includes transmitting a DeModulation Reference Signal (DM RS) and information data in a sub-frame; and transmitting a Sounding Reference Signal (SRS) in a last symbol in another sub-frame. The DM RS is transmitted in a middle symbol in each slot of the sub-frame, and the information data is transmitted in other symbols in each slot of the sub-frame.

Claims

1. A method for transmitting a reference signal (RS) by a user equipment (UE) in a wireless communication system, the method comprising:

transmitting a demodulation reference signal (DM RS) and information data in a sub-frame; and

transmitting a sounding reference signal (SRS) in a last symbol in a second slot from among two slots included in another sub-frame,

wherein the DM RS is transmitted in only a middle symbol in each slot of the sub-frame, and

wherein the information data is transmitted in other symbols in each slot of the sub-frame.

2. The method of claim 1, wherein a cyclic shift value used for transmitting the DM RS is different from a cyclic shift value used for transmitting the SRS.

3. The method of claim 1, wherein the DM RS and the information data are transmitted over a same bandwidth.

4. The method of claim 1, wherein a bandwidth used for transmitting the DM RS is different from a bandwidth used for transmitting the SRS.

5. A method for receiving a reference signal (RS) by a node B in a wireless communication system, the method comprising:

receiving a demodulation reference signal (DM RS) and information data in a sub-frame; and

receiving a sounding reference signal (SRS) in a last symbol in a second slot from among two slots included in another sub-frame,

wherein the DM RS is received in only a middle symbol in each slot of the sub-frame, and

wherein the information data is received in other symbols in each slot of the sub-frame.

6. The method of claim 5, wherein a cyclic shift value used for receiving the DM RS is different from a cyclic shift value used for receiving the SRS.

7. The method of claim 5, wherein the DM RS and the information data are received over a same bandwidth.

8. The method of claim 5, wherein a bandwidth used for receiving the DM RS is different from a bandwidth used for receiving the SRS.

9. A user equipment (UE) for transmitting a reference signal (RS) in a wireless communication system, the UE comprising:

a controller; and

a transmitter configured to transmit a demodulation reference signal (DM RS) and information data in a sub-frame, and to transmit a sounding reference signal (SRS) in a last symbol in a second slot from among two slots included in another sub-frame,

wherein the DM RS is transmitted in only a middle symbol in each slot of the sub-frame, and

wherein the information data is transmitted in other symbols in each slot of the sub-frame.

10. The UE of claim 9, wherein a cyclic shift value used for transmitting the DM RS is different from a cyclic shift value used for transmitting the SRS.

11. The UE of claim 9, wherein the DM RS and the information data are transmitted over a same bandwidth.

12. The UE of claim 9, wherein a bandwidth used for transmitting the DM RS is different from a bandwidth used for transmitting the SRS.

13. A node B for receiving a reference signal (RS) in a wireless communication system, the node B comprising:

a controller; and

a receiver configured to receive a demodulation reference signal (DM RS) and information data in a sub-frame, and to receive a sounding reference signal (SRS) in a last symbol in a second slot from among two slots included in another sub-frame,

wherein the DM RS is received in only a middle symbol in each slot of the sub-frame, and

wherein the information data is received in other symbols in each slot of the sub-frame.

14. The node B of claim 13, wherein a cyclic shift value used for receiving the DM RS is different from a cyclic shift value used for receiving the SRS.

15. The node B of claim 13, wherein the DM RS and the information data are received over a same bandwidth.

16. The node B of claim 13, wherein a bandwidth used for receiving the DM RS is different from a bandwidth used for receiving the SRS.

17. A method for transmitting a reference signal (RS) by a user equipment (UE) in a wireless communication system, the method comprising:

transmitting a demodulation reference signal (DM RS), information data, and a sounding reference signal (SRS) in a sub-frame including two slots, each of the two slot including seven symbols,

wherein the DM RS is transmitted in a middle symbol in each of the two slots,

wherein the SRS is transmitted in a last symbol in a second slot from among the two slots, and

wherein the information data is transmitted in first, second, third, fifth, sixth, and seventh symbols in a first slot from among the two slots, and in first, second, third, fifth, and sixth symbols in the second slot.

18. The method of claim 17, wherein a cyclic shift value used for transmitting the DM RS is different from a cyclic shift value used for transmitting the SRS.

19. The method of claim 17, wherein the DM RS and the information data are transmitted over a same bandwidth.

20. The method of claim 17, wherein a bandwidth used for transmitting the DM RS is different from a bandwidth used for transmitting the SRS.

21. A method for receiving a reference signal (RS) by a node B in a wireless communication system, the method comprising:

receiving a demodulation reference signal (DM RS), information data, and a sounding reference signal (SRS) in a sub-frame including two slots, each of the two slots including seven symbols,

wherein the DM RS is received in a middle symbol in each of the two slots,

wherein the SRS is received in a last symbol in a second slot from among the two slots, and

wherein the information data is received in first, second, third, fifth, sixth, and seventh symbols in a first slot from among the two slots, and in first, second, third, fifth, and sixth symbols in the second slot.

22. The method of claim 21, wherein a cyclic shift value used for receiving the DM RS is different from a cyclic shift values used for receiving the SRS.

23. The method of claim 21, wherein the DM RS and the information data are received over a same bandwidth.

24. The method of claim 21, wherein a bandwidth used for receiving the DM RS is different from a bandwidth used for receiving the SRS.

25. A user equipment (UE) for transmitting a reference signal (RS) in a wireless communication system, the UE comprising:

a controller; and

a transmitter configured to transmit a demodulation reference signal (DM RS), an information data, and a sounding reference signal (SRS) in a sub-frame including two slots, each of the two slots including seven symbols,

wherein the DM RS is transmitted in a middle symbol in each of the two slots,

wherein the SRS is transmitted in a last symbol in a second slot from among the two slots, and

wherein the information data is transmitted in first, second, third, fifth, sixth, and seventh symbols in a first slot from among the two slots, and in first, second, third, fifth, and sixth symbols in the second slot.

26. The UE of claim 25, wherein a cyclic shift value used for transmitting the DM RS is different from a cyclic shift value used for transmitting the SRS.

27. The UE of claim 25, wherein the DM RS and the information data are transmitted over a same bandwidth.

28. The UE of claim 25, wherein a bandwidth used for transmitting DM RS is different from a bandwidth used for transmitting the SRS.

29. A node B for receiving a reference signal (RS) in a wireless communication system, the node B comprising:

a controller; and

a receiver configured to receive a demodulation reference signal (DM RS), information data, and a sounding reference signal (SRS) in a sub-frame including two slots, each of the two slots including seven symbols,

wherein the DM RS is received in a middle symbol in each slot of the two slots,

wherein the SRS is received in a last symbol in a second slot from among the two slots, and

wherein the information data is received in first, second, third, fifth, sixth, and seventh symbols in a first slot from among the two slots, and in first, second, third, fifth, and sixth symbols in the second slot.

30. The node B of claim 29, wherein a cyclic shift value used for receiving the DM RS is different from a cyclic shift values used for receiving the SRS.

31. The node B of claim 29, wherein the DM RS and the information data are received over a same bandwidth.

32. The node B of claim 29, wherein a bandwidth used for receiving DM RS is different from a bandwidth used for receiving the SRS.