IP Library › Granted Patent US 8,520,626
Granted Patent B2
US 8,520,626 · App. 13/054,939 · Granted Aug 27, 2013

Method for transmitting non-user-specific control information in a wireless communication system

Inventors: Zhaohua Lu (Shenzhen, CN); Yanfeng Guan (Shenzhen, CN); Ying Liu (Shenzhen, CN); Huiying Fang (Shenzhen, CN)
Assignee: ZTE Corporation
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Quick Facts
Patent No.
US 8,520,626
App. No.
13/054,939
Granted
Aug 27, 2013
Kind
B2
Abstract

A method for transmitting non-user-specific control information in a wireless communication system includes: in a downlink time period which includes one or more time zones, a base station sends non-user-specific control information in a time zone in which user specific control information is sent; and a terminal obtains and decodes the non-user-specific control information, then obtains information needed to decode user specific control information according to the obtained non-user-specific control information.

Claims (30)

1. A method for transmitting non-user-specific control information in a wireless communication system, comprising:

in a downlink time period which includes one or more time zones, a base station sends non-user-specific control information through broadcasting, multicasting or unicasting in a time zone in which user specific control information is sent; and

a terminal obtains and decodes the non-user-specific control information, and then obtains information needed to decode user specific control information according to the obtained non-user-specific control information; wherein,

the base station also sends time-frequency resource allocation information of the non-user-specific control information in the time zone in which the non-user-specific control information is sent;

correspondingly, according to the time-frequency resource allocation information of the non-user-specific control information, the terminal obtains time-frequency resource allocation used for sending the non-user-specific control information, and then decodes and obtains the non-user-specific control information in the obtained time-frequency resource allocation.

2. The transmitting method according to claim 1 , wherein one time zone is a subframe.

3. The transmitting method according to claim 2 , wherein the non-user-specific control information includes: time-frequency resource allocation used for user specific control information, and/or modulation coding mode used for user specific control information.

4. The transmitting method according to claim 2 , wherein the non-user-specific control information is sent by segment, so that each non-user-specific control information segment includes information needed to decode a piece of user specific control information.

5. The transmitting method according to claim 4 , wherein the non-user-specific control information segment includes: time-frequency resource allocation used by the base station for sending user specific control information, and/or modulation coding mode used by the base station for sending user specific control information, and/or a flag indicating whether other non-user-specific control information segment is sent in the current time zone.

6. The transmitting method according to claim 1 , wherein the non-user-specific control information includes: time-frequency resource allocation used for user specific control information, and/or modulation coding mode used for user specific control information.

7. The transmitting method according to claim 1 , wherein the non-user-specific control information is sent by segment, so that each non-user-specific control information segment includes information needed to decode a piece of user specific control information.

8. The transmitting method according to claim 7 , wherein the non-user-specific control information segment includes: time-frequency resource allocation used by the base station for sending user specific control information, and/or modulation coding mode used by the base station for sending user specific control information, and/or a flag indicating whether other non-user-specific control information segment is sent in the current time zone.

9. A method for transmitting non-user-specific control information in a wireless communication system, comprising:

in a downlink time period which includes one or more time zones, a base station sends non-user-specific control information through broadcasting, multicasting or unicasting in a first time zone in which user specific control information is sent; and

a terminal obtains and decodes the non-user-specific control information, and then obtains information needed to decode user specific control information according to the obtained non-user-specific control information; wherein,

the base station sends resource allocation information of the non-user-specific control information in the first time zone in which the non-user-specific control information is sent;

correspondingly, according to the resource allocation information of the non-user-specific control information, the terminal obtains time-frequency resource allocation used for sending the non-user-specific control information, and then decodes and obtains the non-user-specific control information in the obtained time-frequency resource allocation.

10. The transmitting method according to claim 9 , wherein one time zone is a subframe, and the first time zone is a first subframe.

11. The transmitting method according to claim 10 , wherein the non-user-specific control information includes: time-frequency resource allocation used for user specific control information, and/or modulation coding mode used for user specific control information, and/or information describing whether there is user specific control information in each time zone of the downlink time period.

12. The transmitting method according to claim 11 , wherein there is user specific control information is in some of the time zones of the downlink time period, the non-user-specific control information further includes information indicating time interval at which user specific control information appears, and the time interval adopts one or more time zones as a unit.

13. The transmitting method according to claim 10 , wherein the non-user-specific control information is sent by segment, so that each non-user-specific control information segment includes information needed to decode a piece of user specific control information.

14. The transmitting method according to claim 13 , wherein time-frequency resource allocation of a first non-user-specific control information segment is known to the terminal, and time-frequency resource allocation of other non-user-specific control information segments can be obtained by the terminal through calculation.

15. The transmitting method according to claim 14 , wherein the non-user-specific control information segment includes: time-frequency resource allocation used by the base station for sending user specific control information, and/or modulation coding mode used by the base station for sending user specific control information, and/or a flag indicating whether other non-user-specific control information segment is sent in the current time zone.

16. The transmitting method according to claim 15 , wherein the first non-user-specific control information segment further includes: information indicating time interval at which user specific control information appears in time zones of the downlink time period; and time interval indicating information is carried explicitly or implicitly.

17. The transmitting method according to claim 9 , wherein the non-user-specific control information includes: time-frequency resource allocation used for user specific control information, and/or modulation coding mode used for user specific control information, and/or information describing whether there is user specific control information in each time zone of the downlink time period.

18. The transmitting method according to claim 17 , wherein when there is user specific control information is in some of the time zones of the downlink time period, the non-user-specific control information further includes information indicating time interval at which user specific control information appears, and the time interval adopts one or more time zones as a unit.

19. The transmitting method according to claim 9 , wherein the non-user-specific control information is sent by segment, so that each non-user-specific control information segment includes information needed to decode a piece of user specific control information.

20. The transmitting method according to claim 19 , wherein time-frequency resource allocation of a first non-user-specific control information segment is known to the terminal, and time-frequency resource allocation of other non-user-specific control information segments can be obtained by the terminal through calculation.

21. The transmitting method according to claim 20 , wherein the non-user-specific control information segment includes: time-frequency resource allocation used by the base station for sending user specific control information, and/or modulation coding mode used by the base station for sending user specific control information, and/or a flag indicating whether other non-user-specific control information segment is sent in the current time zone.

22. The transmitting method according to claim 21 , wherein the first non-user-specific control information segment further includes: information indicating time interval at which user specific control information appears in time zones of the downlink time period; and time interval indicating information is carried explicitly or implicitly.

Priority Claims (1)
CN 2008 1 0225460 · Oct 31, 2008 · national
Continuity (1)
Related Publication 20110158152A1 · Jun 30, 2011