Transmitting Page and Broadcast Control Channel through the Same Time Frequency Resources across the Sectors in a Wireless Communications System

• US 20080056188A1
• Filed: 08/20/2007
• Published: 03/06/2008
• Est. Priority Date: 09/06/2006
• Status: Active Grant

• Current Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Inventors: Gao, Quanzhong, Yang, Yunsong, Lu, Jianmin
• Granted Patent: US 8,009,603 B2
• Time in Patent Office: Days
• US Class Current: 370/330
• CPC Class Codes: H04W 68/02 Arrangements for increasing efficiency of notification or paging channel

Abstract

The present invention describes transmitting the page channel, which may comprise a quick page channel and a regular page channel, and the broadcast control channel, which conveys the system information, through the same time-frequency resources across the sectors of a wireless communications network.

Claims

1. A method for monitoring access terminals in a wireless communications network comprising a plurality of wireless cells, said method comprising:

sending a quick page (QP) configuration message in a first broadcasting channel;

sending a regular page (RP) configuration message in said first broadcasting channel;

sending a QP message in a second broadcasting channel, said second broadcasting channel configured to send said QP message in a single frequency network (SFN) mode;

sending a page forward link assignment message (PFLAM) in each sector of a group of sectors making up at least a part of each one of said plurality of wireless cells, said PFLAM including a resource assignment message assigning an RP channel, wherein each of said PFLAMs is sent according to a time-frequency resource defined by said each sector; and

transmitting said RP channel using a same time-frequency resource in said each sector of said group of sectors, wherein said RP channel carries an RP message.

2. The method of claim 1 wherein said QP configuration message comprises one or more of:

signaling indicating a scrambling code of a QP channel;

signaling identifying said each sector of said group of sectors; and

signaling identifying a group dedicated pilot pattern embedded in said QP channel.

3. The method of claim 2 wherein said QP configuration message is available at one or more of:

a system overhead message; and

a neighbor list message.

4. The method of claim 1 wherein said second broadcasting channel comprises one of:

a group broadcasting channel; and

a sector broadcasting channel.

5. The method of claim 4 further comprising:

configuring a link preamble using a combination of up to eight channels, said combination selected from the group consisting of;

a QP channel (QPCH);

a prime broadcasting channel (PBCCH);

a secondary broadcasting channel (SBCCH); and

a time-division multiplex (TDM) pilot channel.

6. The method of claim 5 further comprising:

embedding a group dedicated pilot into said group broadcasting channel.

7. The method of claim 6 wherein said group broadcasting channel comprises one of:

said QPCH; and

said PBCCH.

8. The method of claim 5 further comprising:

embedding a sector dedicated pilot into said sector broadcasting channel.

9. The method of claim 8 wherein said sector broadcasting channel comprises said SBCCH.

10. The method of claim 5 further comprising:

providing a mapping scheme identifying one or more group pseudo noise (PN) codes corresponding to one or more sector PN codes, wherein said one or more group PN codes facilitate group broadcasting of said PBCCH.

11. The method of claim 2 wherein said RP configuration message comprises one or more of:

a page media access control (MAC) ID, said page MAC ID identifying a scrambling code for said PFLAM; and

signaling indicating a scrambling code for said RP channel.

12. The method of claim 11 wherein said RP configuration message is available at one or more of:

a system overhead message; and

a neighbor list message.

13. The method of claim 11 wherein said QP configuration message and said RP configuration message are combined into a single message.

14. The method of claim 1 wherein:

a scrambling code for a QP channel and said RP channel;

identification of said each sector of said group of sectors;

identification of a group dedicated pilot pattern embedded in said QP channel; and

a page media access control (MAC) ID, said page MAC ID identifying a scrambling code for said PFLAM;

are defined in a standard according to which said wireless communications network operates.

15. The method of claim 1 further comprising:

marking said PFLAM to identify said PFLAM to an access terminal (AT) as containing said resource assignment message for said RP message.

16. The method of claim 15 wherein said marking comprises:

scrambling said PFLAM using a page MAC ID known to said AT.

17. A system for monitoring access terminals in a wireless communications network comprising a plurality of wireless cells, said method comprising:

means for issuing a quick page (QP) configuration message in a first broadcasting channel to a QP group;

means for issuing a QP message in a second broadcasting channel to said QP group, wherein said QP message is transmitted in a single frequency network (SFN) mode;

means for scrambling a page forward link assignment message (PFLAM) using a page media access control (MAC) ID, said PFLAM assigning an RP channel to each sector in said QP group;

means for issuing said PFLAM to said each sector of said QP group, wherein said PFLAM is sent in said each sector according to a time-frequency resource defined by said each sector; and

means for transmitting said RP channel using a same time-frequency resource in said each sector of said quick page group.

18. The system of claim 17 wherein said QP configuration message comprises one or more of:

signaling indicating a scrambling code of a QP channel;

signaling identifying said each sector of said group of sectors; and

signaling identifying a group dedicated pilot pattern embedded in said QP channel.

19. The system of claim 18 wherein said QP configuration message is available at one or more of:

a system overhead message; and

a neighbor list message.

20. The system of claim 17 wherein said second broadcasting channel comprises one of:

a group broadcasting channel; and

a sector broadcasting channel.

21. The system of claim 20 further comprising:

means for configuring a superframe preamble using a combination of up to eight channels, said combination selected from the group consisting of;

a QP channel (QPCH);

a prime broadcasting channel (PBCCH);

a secondary broadcasting channel (SBCCH); and

a time-division multiplex (TDM) pilot channel.

22. The system of claim 21 further comprising:

means for embedding a group dedicated pilot into said group broadcasting channel.

23. The system of claim 22 wherein said group broadcasting channel comprises one of:

said QPCH; and

said PBCCH.

24. The system of claim 21 further comprising:

means for embedding a sector dedicated pilot into said sector broadcasting channel.

25. The system of claim 24 wherein said sector broadcasting channel comprises said SBCCH.

26. The system of claim 21 further comprising:

means for mapping one or more sector pseudo noise (PN) codes into one or more group PN codes, wherein said one or more group PN codes allows group broadcasting of said PBCCH.

27. The system of claim 18 further comprising:

means for issuing an RP configuration message in said first broadcasting channel, wherein said RP configuration message comprises one or more of;

said page MAC ID; and

signaling indicating a scrambling code for said RP channel.

28. The system of claim 27 wherein said RP configuration message is available at one or more of:

a system overhead message; and

a neighbor list message.

29. The system of claim 27 wherein said QP configuration message and said RP configuration message are combined into a single message.

30. A computer program product having a computer readable medium with computer program logic recorded thereon, said computer program product comprising:

code for transmitting a quick page (QP) configuration message and a regular page (RP) configuration message in a first broadcasting channel of a wireless communications network;

code for transmitting a QP message in a second broadcasting channel of said wireless communications network, wherein said QP message is transmitted in a single frequency network (SFN) mode;

code for scrambling a page forward link assignment message (PFLAM) using a page media access control (MAC) ID;

code for transmitting an RP channel using a same time-frequency resource in each sector of a QP group; and

code for transmitting said PFLAM in said each sector of said QP group, said PFLAM assigning said RP channel to said each sector of said QP group at said same time-frequency resource, wherein each of said PFLAMs is transmitted according to a different time-frequency resource defined by said each sector.

31. The computer program product of claim 30 further comprising:

code for generating said QP configuration message, wherein said QP configuration message comprises one or more of;

signaling indicating a scrambling code of a QP channel;

signaling identifying said each sector of said group of sectors; and

signaling identifying a group dedicated pilot pattern embedded in said QP channel.

32. The computer program product of claim 31 wherein said QP configuration message is available at one or more of:

a system overhead message; and

a neighbor list message.

33. The computer program product of claim 30 wherein said second broadcasting channel comprises one of:

a group broadcasting channel; and

a sector broadcasting channel.

34. The computer program product of claim 33 further comprising:

code for generating a superframe preamble using a combination of up to eight channels, said combination selected from the group consisting of;

a QP channel (QPCH);

a prime broadcasting channel (PBCCH);

a secondary broadcasting channel (SBCCH); and

a time-division multiplex (TDM) pilot channel.

35. The computer program product of claim 34 further comprising:

code for embedding a group dedicated pilot into said group broadcasting channel; and

code for embedding a sector dedicated pilot into said sector broadcasting channel.

36. The computer program product of claim 34 further comprising:

code for mapping one or more sector pseudo noise (PN) codes into one or more group PN codes, said one or more group PN codes for group broadcasting of said PBCCH.

37. The computer program product of claim 31 further comprising:

code for generating said RP configuration message, wherein said RP configuration message comprises one or more of;

said page MAC ID; and

signaling indicating a scrambling code for said RP channel.

38. The computer program product of claim 37 wherein said RP configuration message is available at one or more of:

a system overhead message; and

a neighbor list message.