Method and apparatus for transmitting and receiving control information to randomize inter-cell interference in a mobile communication system

• US 9,565,000 B2
• Filed: 02/17/2015
• Issued: 02/07/2017
• Est. Priority Date: 01/05/2007
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Young-Bum, Cho, Joon-Young, Lee, Juho, Li, Ying Yang, Zhang, Yujian
• Primary Examiner(s): Mohebbi, Kouroush
• Application Number:
  US14/624,313
• Publication Number:
  US 20150163796A1
• Time in Patent Office: 721 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04B 1/713 using frequency hopping
• CPC Class Codes: H04J 11/005 of intercell interference
• CPC Class Codes: H04J 13/0062 Zadoff-Chu
• CPC Class Codes: H04J 13/18 Allocation of orthogonal codes
• CPC Class Codes: H04L 25/0228 with direct estimation from sounding signals
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0016 Time-frequency-code
• CPC Class Codes: H04L 5/0019 in which one code is applied, as a temporal sequence, to all frequencies
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 28/0236 radio quality, e.g. interference, losses or delay
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

Methods and apparatuses are provided for transmitting and receiving information. A User Equipment (UE) identifies first information for a cyclic shift value, transmitted from a Node B. The UE identifies second information for the cyclic shift value, transmitted from the Node B. The UE obtains a sequence based on a Zadoff-Chu sequence and the cyclic shift value defined based on the first information and the second information. The UE transmits the sequence in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbol to the Node B. The SC-FDMA symbol is predefined among a plurality of SC-FDMA symbols in a slot of a subframe.

Claims

1. A method for transmitting information, the method comprising:

identifying, by a User Equipment (UE), a first shift value, transmitted from a Node B;

identifying, by the UE, a second shift value, transmitted from the Node B;

acquiring a cyclic shift value by using both the first shift value and the second shift value;

obtaining, by the UE, a sequence based on a Zadoff-Chu sequence and the cyclic shift value; and

transmitting, by the UE, the sequence in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbol to the Node B,

wherein the SC-FDMA symbol is predefined among a plurality of SC-FDMA symbols in a slot of a subframe.

2. The method of claim 1, wherein the cyclic shift value is defined based on summation of the first shift value and the second shift value.

3. The method of claim 1, wherein the sequence is transmitted by frequency hopping between two slots of the subframe.

4. The method of claim 1, wherein at least one of the first shift value and the second shift value is received by physical layer signaling.

5. The method of claim 1, wherein at least one of the first shift value and the second shift value is received by higher layer signaling.

6. A method for transmitting information, the method comprising:

transmitting, by a Node B, a first shift value to a User Equipment (UE);

transmitting, by the Node B, a second shift value to the UE; and

receiving, by the Node B, a sequence, determined based on a Zadoff-Chu sequence and a cyclic shift value acquired by using both the first shift value and the second shift value, in a Single Carrier-Frequency Division Multiple Access (SC CDMA) symbol from the UE,

wherein the SCFDMA symbol is predefined among a plurality of SC-FDMA symbols in a slot of a subframe.

7. The method of claim 6, wherein the cyclic shift value is defined based on summation of the first shift value and the second shift value.

8. The method of claim 6, wherein the sequence is received by frequency hopping between two slots of the subframe.

9. The method of claim 6, wherein at least one of the first shift value and the second shift value is transmitted by physical layer signaling.

10. The method of claim 6, wherein at least one of the first shift value and the second shift value is transmitted by higher layer signaling.

11. An apparatus for transmitting information, the apparatus comprising:

a controller configured to identify a first shift value, transmitted from a Node B, identify a second shift value, transmitted from the Node B, acquire a cyclic shift value by using both the first shift value and the second shift value, and obtain a sequence based on a Zadoff-Chu sequence and the cyclic shift value; and

a transceiver configured to transmit the sequence in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbol to the Node B,

wherein the SC-FDMA symbol is predefined among a plurality SC-FDMA symbols in a slot of a subframe.

12. The apparatus of claim 11, wherein the cyclic shift value is defined based on summation of the first shift value and the second shift value.

13. The apparatus of claim 11, wherein the sequence is transmitted by frequency hopping between two slots of the subframe.

14. The apparatus of claim 11, wherein at least one of the first shift value and the second shift value is received by physical layer signaling.

15. The apparatus of claim 11, wherein at least one of the first shift value and the second shift value is received by higher layer signaling.

16. An apparatus for receiving information, the apparatus comprising:

a transceiver configured to transmit a first shift value to a User Equipment (UE), transmit a second shift value to the UE, and receive a sequence, determined based on a Zadoff-Chu sequence and a cyclic shift value acquired by using both the first shift value and the second shift value, in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbol from the UE; and

a controller configured to control the transceiver,

wherein the SC-FDMA symbol is predefined among a plurality of SC-FDMA symbols in a slot of a subframe.

17. The apparatus of claim 16, wherein the cyclic shift value is defined based on summation of the first shift value and the second shift value.

18. The apparatus of claim 16, wherein the sequence is received by frequency hopping between two slots of the subframe.

19. The apparatus of claim 16, wherein at least one of the first shift value and the second shift value is transmitted by physical layer signaling.

20. The apparatus of claim 16, wherein at least one of the first shift value and the second shift value is transmitted by higher layer signaling.