IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0568589
(2004-08-20)
|
등록번호 |
US-7835329
(2011-01-16)
|
우선권정보 |
JP-P2003-208290(2003-08-21); JP-P2003-425631(2003-12-22) |
국제출원번호 |
PCT/JP2004/012026
(2004-08-20)
|
§371/§102 date |
20061024
(20061024)
|
국제공개번호 |
WO05/020471
(2005-03-03)
|
발명자
/ 주소 |
- Moon, Sung Uk
- Ishii, Minami
- Nakamura, Takehiro
|
출원인 / 주소 |
|
대리인 / 주소 |
Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
4 |
초록
▼
It is an object of this invention to select an information receiving method at a mobile station (MS) so as to avoid an increase in the transmission power of a base transceiver station (BTS) or redundancy or loss of received information at the mobile station (MS) in broadcast communication or multica
It is an object of this invention to select an information receiving method at a mobile station (MS) so as to avoid an increase in the transmission power of a base transceiver station (BTS) or redundancy or loss of received information at the mobile station (MS) in broadcast communication or multicast communication. A mobile station according to this invention includes a receiving method selection information acquiring unit (11, 14, 15, 16) for acquiring receiving method selection information for receiving the same information transmitted via a plurality of cells, and a determining unit (12) for determining whether to perform soft combining or selective combining on the same information based on the receiving method selection information.
대표청구항
▼
The invention claimed is: 1. A mobile communication system for transmitting same information to a mobile station via a plurality of cells, the system comprising: the mobile station configured to receive, as receiving method selection information, control information on a neighboring cell of a curre
The invention claimed is: 1. A mobile communication system for transmitting same information to a mobile station via a plurality of cells, the system comprising: the mobile station configured to receive, as receiving method selection information, control information on a neighboring cell of a current cell in which the mobile station is located transmitting the same information; and the mobile station configured to determine whether to perform soft combining or selective combining on the same information received, based on the receiving method selection information for receiving the same information via the current cell and the neighboring cell. 2. The mobile communication system as set forth in claim 1, wherein a radio network controller provides, as the receiving method selection information, the control information including information as to whether broadcast service or multicast service can be provided or not in the neighboring cell of the current cell in which the mobile station is located. 3. A mobile communication system for transmitting same information to a mobile station via a plurality of cells, the system comprising: the mobile station configured to receive, as receiving method selection information, control information on a neighboring cell of a current cell in which the mobile station is located transmitting the same information; and the mobile station configured to determine whether to perform soft combining or selective combining, or not to perform combining processing on the same information received, based on the receiving method selection information for receiving the same information via the current cell and the neighboring cell. 4. A mobile station comprising: a receiving method selection information acquiring unit configured to acquire, as receiving method selection information, control information on a neighboring cell of a current cell in which the mobile station is located transmitting the same information for receiving same information transmitted via the current cell and the neighboring cell; and a determining unit configured to determine whether to perform soft combining or selective combining on the same information received based on the receiving method selection information. 5. The mobile station as set forth in claim 4, wherein the determining unit is configured to determine whether to perform soft combining or selective combining, or not to perform combining processing on the received same information, based on the receiving method selection information. 6. The mobile station as set forth in claim 4, wherein: the receiving method selection information acquiring unit is configured to acquire receiving method instruction information showing soft combining or selective combining from a network or a base transceiver station; and the determining unit is configured to perform the determination based on the receiving method instruction information. 7. The mobile station as set forth in claim 4, wherein: the receiving method selection information acquiring unit is configured to receive, as the receiving method selection information, transmission timing information on the current cell and the neighboring cell from the current cell and the neighboring cell, respectively; the mobile station further comprise a transmission timing difference measuring unit configured to measure a transmission timing difference between the current cell and the neighboring cell, based on the received transmission timing information; and the determining unit is configured to perform the determination based on the transmission timing difference. 8. The mobile station as set forth in claim 4, wherein: the receiving method selection information acquiring unit is configured to receive, as the receiving method selection information, a transmission timing difference between the current cell and the neighboring cell from a network or a base transceiver station; and the determining unit is configured to perform the determination based on the transmission timing difference. 9. The mobile station as set forth in claim 8, further comprising: a storage unit configured to associate and store the transmission timing differences and combining methods for the same information; wherein, the determining unit is configured to perform the determination based on the combining method associated with the received transmission timing difference. 10. The mobile station as set forth in claim 8, further comprising: a storage unit configured to associate and store the transmission timing differences, processing capabilities of the mobile station, and combining methods for the same information; wherein, the determining unit is configured to perform the determination based on the combining method associated with the received transmission timing difference and the processing capability of the mobile station. 11. The mobile station as set forth in claim 8, wherein the determining unit is configured to determine that soft combining be performed on the received same information, by using all predetermined reliability information corresponding to reception qualities of radio channels used in the current cell and the neighboring cell, when the received transmission timing difference has a value within a first range. 12. The mobile station as set forth in claim 8, wherein the determining unit is configured to determine that selective combining be performed on the received same information, by comparing part of predetermined reliability information corresponding to reception qualities of radio channels used in the current cell and the neighboring cell, when the received transmission timing difference has a value within a second range. 13. The mobile station as set forth in claim 4, wherein: the receiving method selection information acquiring unit is configured to acquire, as the receiving method selection information, control information including information as to whether broadcast service or multicast service can be provided or not in the neighboring cell of the current cell in which the mobile station is located; and the determining unit is configured to perform the determination based on the control information. 14. The mobile station as set forth in claim 13, wherein the control information includes channel information on a radio channel used in the neighboring cell. 15. The mobile station as set forth in claim 13, wherein: the receiving method selection information acquiring unit is configured to acquire, as the receiving method selection information, a difference between a transmission timing in the neighboring cell in which broadcast service or multicast service can be provided and a transmission timing in the current cell; and the determining unit is configured to perform the determination based on the control information and the transmission timing difference. 16. The mobile station as set forth in claim 13, wherein the determining unit is configured to perform the determination for the same information received from the neighboring cell in which broadcast service or multicast service can be provided. 17. A radio network controller for use in a mobile communication system for transmitting same information to a mobile station via a plurality of cells, comprising: a determining unit configured to determine whether broadcast service or multicast service can be provided or not in a neighboring cell of a current cell in which the mobile station is located; a notifying unit configured to provide control information including a result of the determination, as receiving method selection information for receiving the same information at the mobile station; and a receiving method instructing unit configured to provide an instruction on whether to perform soft combining or selective combining on the same information received at the mobile station, based on the receiving method selection information. 18. The radio network controller as set forth in claim 17, wherein the notifying unit is configured to provide, as the receiving method selection information, only the control information on the neighboring cell in which broadcast service or multicast service can be provided. 19. The radio network controller as set forth in claim 17, wherein the control information includes channel information on a radio channel used in the neighboring cell. 20. The radio network controller as set forth in claim 17, wherein the notifying unit is configured to transmit, as the receiving method selection information, a difference between a transmission timing in the neighboring cell in which broadcast service or multicast service can be provided and a transmission timing in the current cell. 21. A radio network controller for use in a mobile communication system for transmitting same information to a mobile station via a plurality of cells, comprising: a receiving method instructing unit configured to provide an instruction on whether to perform soft combining or selective combining on the same information received at the mobile station, based on a transmission timing difference between the plurality of cells. 22. The radio network controller as set forth in claim 21, wherein the receiving method instructing unit is configured to provide the instruction based on the transmission timing difference between the plurality of cells and a processing capability of the mobile station.
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