Configuration of overhead channels in a mixed bandwidth system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04B-007/216
H04B-007/204
H04J-001/08
H04J-001/00
출원번호
US-0879854
(2004-06-28)
등록번호
US-7508790
(2009-03-24)
발명자
/ 주소
Jou,Yu Cheun
출원인 / 주소
QUALCOMM Incorporated
대리인 / 주소
Vu,Kenneth K.
인용정보
피인용 횟수 :
3인용 특허 :
62
초록▼
A method and apparatus for transmitting broadcast information in a multi-carrier communication system. The Sync Channel of the multi-carrier system is transmitted a 1.25 MHz channel bandwidth (i.e., over a single carrier), and to specify the preferred channels for the Sync Channel transmission inste
A method and apparatus for transmitting broadcast information in a multi-carrier communication system. The Sync Channel of the multi-carrier system is transmitted a 1.25 MHz channel bandwidth (i.e., over a single carrier), and to specify the preferred channels for the Sync Channel transmission instead of the preferred channels for the entire multi-carrier system. The Sync Channel Message will carry additional information indicating the center frequency of a multi-carrier system within a reserved set of frequency bands and indicating the frequency of a single carrier system in the reserved set of frequency bands. Considering the A block of the PCS band again, the preferred channels for Sync Channel transmission can be selected as channels 75, 150 and 225. This selection ensures that one of the preferred channels will always be used by any multi-carrier system regardless of the location of its center channel.
대표청구항▼
I claim: 1. A multi-carrier base station, comprising: a first transmission subsystem for transmitting some data components of forward link data comprising a sync channel message on at least one of a set of preferred frequency channels included within a predetermined set of frequencies in a personal
I claim: 1. A multi-carrier base station, comprising: a first transmission subsystem for transmitting some data components of forward link data comprising a sync channel message on at least one of a set of preferred frequency channels included within a predetermined set of frequencies in a personal communications system (PCS) block of frequencies; and at least one additional transmission subsystem comprising multiple bands of adjacent of said frequency channels each said band including said one of a set of preferred frequency channels for simultaneously transmitting remaining components of said forward link data. 2. The base station of claim 1, wherein said sync channel message indicates the frequency of a single carrier system in said set of frequencies. 3. The base station of claim 1, wherein said sync channel message indicates the center frequency of at least one multi-carrier system in said set of frequencies. 4. The base station of claim 3, wherein said set of a preferred frequency channels have channel numbers comprising 75, 150 and 225, and wherein the number of frequency channels in said set of preferred frequency channels is less than the number of frequencies in the predetermined set of frequencies. 5. A method of acquiring a sync channel message using a wireless device operable in at least one of a single carrier mode in a single carrier system and a multi-carrier mode in a multi-carrier system, the method comprising: defining a predetermined set of frequencies that each have a channel number associated with a band; tuning to preferred channel numbers until a sync channel message is received, wherein any combination of three adjacent channel numbers includes a preferred channel number upon which the wireless device can receive the sync channel message, wherein tuning to preferred channel numbers until a sync channel message is received, comprises: attempting to receive the sync channel message by tuning to a first preferred channel number located on one of a group of bands including the first through third bands; and if the sync channel message is not received on the group of bands including the first through third bands, attempting to receive the sync channel message by tuning to the first preferred channel number located on one of a group of bands including the second through fourth bands; if the sync channel message is not received on the group of bands including the second through fourth bands, attempting to receive the sync channel message by tuning to a second preferred channel number located on one of a group of bands including the third through fifth bands; if the sync channel message is not received on the group of bands including the third through fifth bands, attempting to receive the sync channel message by tuning to the second preferred channel number located on one of a group of bands including the fourth through sixth bands, wherein channel numbers of the predetermined set of frequencies comprise 25, 50, 75, 100, 125, 150, 175, 200, 225, 250, and 275, and wherein the preferred channel numbers are 75, 150 and 225 such that such that a sync channel message provided anywhere in the predetermined set of frequencies will include one of the preferred channel numbers. 6. A method according to claim 5, wherein each band has a width of approximately 1.25 Mhz and carries CDMA transmission. 7. A method of acquiring a sync channel message using a wireless device operable in at least one of a single carrier mode in a single carrier system and a multi-carrier mode in a multi-carrier system, the method comprising: defining a predetermined set of frequencies that each have a channel number associated with a band; tuning to preferred channel numbers until a sync channel message is received, wherein any combination of three adjacent channel numbers includes a preferred channel number upon which the wireless device can receive the sync channel message; and deciding to operate, responsive to the sync channel message, in one of the multi-carrier system and the single carrier system. 8. A method according to claim 7, wherein the sync channel message is transmitted in a 1x band and indicates the frequency of a 1x band in the current set of frequency bands, and if the wireless device decides to operate in the single carrier system, then the wireless device uses the information received in the sync channel message to tune to the appropriate frequency of the single carrier system, and receives a general paging channel message on a primary paging channel that provides a number of paging channels used by the single carrier system. 9. A method according to claim 7, wherein the sync channel message indicates the center frequency of a multi-carrier system in the current set of frequency bands, and if the wireless device decides to operate in the multi-carrier system, then the wireless device uses the center frequency of the multi-carrier system indicated in the sync channel message to tune to the multi-carrier system and receive a broadcast channel message that indicates a number of common control channels that are employed by the multi-carrier system. 10. A method of acquiring a sync channel message using a wireless device operable in at least one of a single carrier mode in a single carrier system and a multi-carrier mode in a multi-carrier system, the method comprising: defining a predetermined set of frequencies that each have a channel number associated with a band; and tuning to preferred channel numbers until a sync channel message is received, wherein any combination of three adjacent channel numbers includes a preferred channel number upon which the wireless device can receive the sync channel, wherein tuning to the preferred channel number until a sync channel message is received, comprises: tuning to a first preferred frequency in the predetermined set of frequencies, wherein the first preferred frequency falls within the first through third bands; and determining whether a sync channel message is available in the first through third bands, wherein the sync channel message is divided into three component parts that are each transmitted separately and simultaneously on a different bands; if the sync channel message is not available at the first preferred frequency, tuning to a second preferred frequency in the predetermined set of frequencies, wherein the second preferred frequency falls within the second through fourth bands; and determining whether the sync channel message is available in the second through fourth bands. 11. A method according to claim 10, wherein the channel numbers of the predetermined set of frequencies comprise 25, 50, 75, 100, 125, 150, 175, 200, 225, 250, and 275, and wherein the preferred channel numbers are 75, 150 and 225 such that such that a sync channel message provided anywhere in the predetermined set of frequencies will include one of the preferred channel numbers. 12. A method according to claim 11, wherein each band has a width of approximately 1.25 Mhz and carries CDMA transmission. 13. A wireless device operable in at least one of a single carrier mode in a single carrier system and a multi-carrier mode in a multi-carrier system, comprising: means for storing a predetermined set of frequencies that each have a channel number associated with a band; and means for tuning to preferred channel numbers until a sync channel message is received, wherein any combination of three adjacent channel numbers includes a preferred channel number upon which the wireless device can receive the sync channel message, wherein the means for tuning to preferred channel numbers until a sync channel message is received, comprises: means for attempting to receive the sync channel message by tuning to a first preferred channel number located on one of a group of bands including the first through third bands, and, if the sync channel message is not received on the group of bands including the first through third bands, tuning to the first preferred channel number located on one of a group of bands including the second through fourth bands; if the sync channel message is not received on the group of bands including the second through fourth bands, wherein the means for attempting to receive the sync channel message tunes to a second preferred channel number located on one of a group of bands including the third through fifth bands; if the sync channel message is not received on the group of bands including the third through fifth bands, wherein the means for attempting to receive the sync channel message tunes to the second preferred channel number located on one of a group of bands including the fourth through sixth bands, wherein the channel numbers of the predetermined set of frequencies comprise 25, 50, 75, 100, 125, 150, 175, 200, 225, 250, and 275, and wherein the preferred channel numbers are 75, 150 and 225 such that such that a sync channel message provided anywhere in the predetermined set of frequencies will include one of the preferred channel numbers. 14. A wireless device according to claim 13, wherein each band has a width of approximately 1.25 Mhz and carries CDMA transmission. 15. A wireless device operable in at least one of a single carrier mode in a single carrier system and a multi-carrier mode in a multi-carrier system, comprising: means for storing a predetermined set of frequencies that each have channel number associated with a band; and means for tuning to preferred channel numbers until a sync channel message is received, wherein any combination of three adjacent channel numbers includes a preferred channel number upon which the wireless device can receive the sync channel message; and means for deciding to operate, responsive to the sync channel message, in one of the multi-carrier system and the single carrier system. 16. A wireless device, according to claim 15, wherein the sync channel message is transmitted in a 1x band and indicates the frequency of a 1x band in the current set of frequency bands, and if the means for deciding decides to operate in the single carrier system, then the wireless device uses the information received in the sync channel message to tune to the appropriate frequency of the single carrier system, and receives a general paging channel message on a primary paging channel that provides a number of paging channels used by the single carrier system. 17. A wireless device according to claim 15, wherein the sync channel message indicates the center frequency of a multi-carrier system in the current set of frequency bands, and if the means for deciding decides to operate in the multi-carrier system, then the wireless device uses the center frequency of the multi-carrier system indicated in the sync channel message to tune to the multi-carrier system and receive a broadcast channel message that indicates a number of common control channels that are employed by the multi-carrier system. 18. An apparatus for acquiring a sync channel message using a wireless device operable in at least one of a single carrier mode in a single carrier system and a multi-carrier mode in a multi-carrier system, the method comprising: means for defining a predetermined set of frequencies that each have a channel number associated with a band; and means for tuning to preferred channel numbers until a sync channel message is received, wherein any combination of three adjacent channel numbers includes a preferred channel number upon which the wireless device can receive the sync channel, wherein tuning to the preferred channel number until a sync channel message is received, comprises: means for tuning to a first preferred frequency in the predetermined set of frequencies, wherein the first preferred frequency falls within the first through third bands; and means for determining whether a sync channel message is available in the first through third bands, wherein the sync channel message is divided into three component parts that are each transmitted separately and simultaneously on a different bands; if the sync channel message is not available at the first preferred frequency, tuning to a second preferred frequency in the predetermined set of frequencies, wherein the second preferred frequency falls within the second through fourth bands; and means for determining whether the sync channel message is available in the second through fourth bands. 19. The apparatus according to claim 18, wherein the channel numbers of the predetermined set of frequencies comprise 25, 50, 75, 100, 125, 150, 175, 200, 225, 250, and 275, and wherein the preferred channel numbers are 75, 150 and 225 such that such that a sync channel message provided anywhere in the predetermined set of frequencies will include one of the preferred channel numbers. 20. The apparatus according to claim 19, wherein each band has a width of approximately 1.25 Mhz and carries CDMA transmission.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (62)
Young-Soo Park KR; Yun-Hee Lee KR; Sang-Hwan Park KR, Apparatus and method for detecting a mobile phone in idle state.
Sohner Harold K. (Richardson TX) Hoyloak Joel N. (Lucas TX) Spradling John T. (Van Alstyne TX), Communication system using spread spectrum and leaky transmission line.
Hustig Charles H. (Hudson WI) Ward Jeffrey L. (Hudson WI) Moses Donald W. (Minneapolis MN) Bradford Robert S. (Woodland Hills CA), Data and voice communications system.
Blakeney ; II Robert D. (San Diego CA) Weaver ; Jr. Lindsay A. (Boulder CO) Ziv Noam A. (San Diego CA) Williamson Paul T. (San Diego CA) Padovani Roberto (San Diego CA), Demodulation element assignment in a system capable of receiving multiple signals.
Kim, Young-Ky; Ahn, Jae-Min; Yoon, Soon-Young; Kang, Hee-Won; Lee, Hyun-Suk; Park, Jin-Soo; Kim, Jae-Yoel, Device and method for exchanging frame messages of different lengths in CDMA communication system.
Kaufmann Hans (Gossau CHX) Kueng Roland (Wolfhausen CHX) Grob Urs (Goldach CHX) Welti Arnold (Brugg CHX), Digital radio transmission system for a cellular network, using the spread spectrum method.
Gilhousen Klein S. (San Diego CA) Padovani Roberto (San Diego CA) Wheatly ; III Charles E. (Del Mar CA), Diversity receiver in a CDMA cellular telephone system.
Dean Richard F. (Escondido CA) Antonio Franklin P. (Del Mar CA) Gilhousen Klein S. (Bozeman MT) Wheatley ; III Charles E. (Del Mar CA), Dual distributed antenna system.
Gilhousen Klein S. (San Diego CA) Padovani Roberto (San Diego CA) Wheatley ; III Charles E. (Del Mar CA), Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system.
Hall Scott Maurice ; Warner Shawn Allison ; Krzystyniak Michael Anthony, Method and apparatus for providing a time adjustment to a wireless communication system.
Anja Klein DE; Michael Farber DE; Christian Luders DE, Method and radio communications system for assigning a frequency channel to a radio station and appropriate radio station.
Tiedemann ; Jr. Edward G. ; Terasawa Daisuke ; Sarkar Sandip ; Jou Yu-Cheun ; Odenwalder Joseph P. ; Shanbhag Abihijit ; Willenegger Serge,CHX, Method and system for handoff between an asynchronous CDMA base station and a synchronous CDMA base station.
Gilhousen Klein S. (San Diego CA) Padovani Roberto (San Diego CA) Wheatley ; III Charles E. (Del Mar CA), Method and system for providing a soft handoff in communications in a CDMA cellular telephone system.
Charles E. Wheatley, III ; Edward G. Tiedemann, Jr. ; Joseph P. Odenwalder ; Rajeev Krishnamurthi, Method and system for providing personal base station communications.
Rydberg James T. (Hoffman Estates IL) Hallman Kenneth B. (Arlington Hts. IL), Method for assigning frequency channels in a cellular communication system and for identifying critical existing fixed m.
Yamada Jun (Yokohama GA JPX) Callahan Kevin (Norcross GA) Jacobs Charles A. (Woodstock GA), Method for automatic mode selection for a dual-mode telephone handset for use in a cellular mobile telephone system and.
Blakeney ; II Robert D. (San Diego CA) Karmi Gadi (San Diego CA) Tiedemann ; Jr. Edward G. (San Diego CA) Weaver ; Jr. Lindsay A. (San Diego CA), Mobile station assisted soft handoff in a CDMA cellular communications system.
Gilhousen Klein S. (San Diego CA) Jacobs Irwin M. (La Jolla CA) Weaver ; Jr. Lindsay A. (San Diego CA), Spread spectrum multiple access communication system using satellite or terrestrial repeaters.
Gilhousen Klein S. (San Diego CA) Jacobs Irwin M. (La Jolla CA) Padovani Roberto (San Diego CA) Weaver ; Jr. Lindsay A. (San Diego CA) Wheatley ; III Charles E. (Del Mar CA) Viterbi Andrew J. (La Jol, System and method for generating signal waveforms in a CDMA cellular telephone system.
Scott Logan, Timing adjustment control for efficient time division duplex, frequency division duplex or hybrid time division duplex/frequency division duplex communication.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.