Method of selecting operating frequency for user equipment in a wireless communications system and related apparatus
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04W-072/00
H04W-048/18
H04W-076/06
H04W-088/02
출원번호
US-0898562
(2007-09-13)
등록번호
US-9100930
(2015-08-04)
발명자
/ 주소
Kuo, Richard Lee-Chee
출원인 / 주소
INNOVATIVE SONIC LIMITED
대리인 / 주소
Blue Capital Law Firm, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
9
초록▼
In order to prevent a preferred frequency providing Multimedia Broadcast Multicast Service, called MBMS hereinafter, services, from getting congestion, the present invention provides a method of selecting an operating frequency for a user equipment, called UE hereinafter, in a wireless communication
In order to prevent a preferred frequency providing Multimedia Broadcast Multicast Service, called MBMS hereinafter, services, from getting congestion, the present invention provides a method of selecting an operating frequency for a user equipment, called UE hereinafter, in a wireless communications system. The method includes switching the operating frequency from a first frequency to a second frequency when the UE activates to receive a MBMS service of a service group; and switching the operating frequency from the second frequency to the first frequency when the UE determines not to receive any MBMS services provided on the second frequency.
대표청구항▼
1. A method of selecting an operating frequency for a user equipment, called UE hereinafter, in a wireless communications system, the method comprising: switching the operating frequency from a first frequency to a second frequency when activating to receive an multimedia broadcast multicast service
1. A method of selecting an operating frequency for a user equipment, called UE hereinafter, in a wireless communications system, the method comprising: switching the operating frequency from a first frequency to a second frequency when activating to receive an multimedia broadcast multicast service, called MBMS hereinafter, service of a service group;deactivating, by the UE, the MBMS service before a session stop of the MBMS service is issued by a network; andswitching the operating frequency from the second frequency to the first frequency upon the UE's deactivation of the MBMS service if determining not to receive any MBMS services provided on the second frequency,wherein the switching of the operating frequency from the second frequency to the first frequency occurs before the session stop of the MBMS service is issued by the network. 2. The method of claim 1 further comprising releasing a plurality of point-to-multipoint radio bearers corresponding to the MBMS service when stopping receiving the MBMS service. 3. The method of claim 1, wherein the MBMS service is a service of Broadcast type. 4. The method of claim 1, wherein the MBMS service belongs to MBMS Selected Services. 5. The method of claim 1, wherein the MBMS service is a service of Multicast type. 6. The method of claim 1, wherein the UE operates in an Idle mode. 7. The method of claim 1, wherein the UE operates in a CELL_PCH (Cell Paging Channel) state. 8. The method of claim 1, wherein the UE operates in a URA_PCH (Universal Mobile Telecommunications System Terrestrial Radio Access Network Registration Area Paging Channel) state. 9. The method of claim 1, wherein the UE operates in a CELL FACH (Cell Forward Access Channel) state. 10. The method of claim 1, wherein the wireless communications system is a third generation communications system. 11. A communications device of a wireless communications system utilized for accurately selecting an operating frequency to prevent a frequency used for provision of multimedia broadcast multicast service, called MBMS hereinafter, services from getting congested, the communications device comprising: a control circuit for realizing functions of the communications device;a central processing unit installed in the control circuit for executing a program code to operate the control circuit; anda memory coupled to the central processing unit for storing the program code;wherein the program code comprises: switching the operating frequency from a first frequency to a second frequency when activating to receive an MBMS service of a service group;deactivating, by the UE, the MBMS service before a session stop of the MBMS service is issued by a network; andswitching the operating frequency from the second frequency to the first frequency upon the UE's deactivation of the MBMS service if determining not to receive any MBMS services provided on the second frequency,wherein the switching of the operating frequency from the second frequency to the first frequency occurs before the session stop of the MBMS service is issued by the network. 12. The communications device of claim 11, wherein the program code further comprises releasing a plurality of point-to-multipoint radio bearers corresponding to the MBMS service when stopping receiving the MBMS service. 13. The communications device of claim 11, wherein the MBMS service is a service of Broadcast type. 14. The communications device of claim 11, wherein the MBMS service belongs to MBMS Selected Services. 15. The communications device of claim 11, wherein the MBMS service is a service of Multicast type. 16. The communications device of claim 11, wherein the communications device operates in an Idle mode. 17. The communications device of claim 11, wherein the communications device operates in a CELL_PCH (Cell Paging Channel) state. 18. The communications device of claim 11, wherein the communications device operates in a URA_PCH (Universal Mobile Telecommunications System Terrestrial Radio Access Network Registration Area Paging Channel state. 19. The communications device of claim 1, wherein the communications device operates in a CELL_FACH (Cell Forward Access Channel) state. 20. The communications device of claim 11, wherein the wireless communications system is a third generation communications system.
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이 특허에 인용된 특허 (9)
Yi,Seung June; Lee,Young Dae; Chun,Sung Duck, Apparatus and method for supporting mobility of wireless terminal in wireless communication network.
Jeong,Kyeong In; Lee,Kook Heui; Kim,Soeng Hun; Choi,Sung Ho; Van Lieshout,Gert Jan, Cell reselection method for receiving packet data in a mobile communication system supporting MBMS.
Kwak, No Jun; Jeong, Kyeong In; Lee, Kook Heui, Method and apparatus for indicating cell selection when a session is stopped in a multimedia broadcast/multicast service system.
Willenegger,Serge; Chen,Tao; Vayanos,Alkinoos Hector; Wei,Yongbin, Multi-media broadcast and multicast service (MBMS) in a wireless communications system.
Lee,Young Dae; Yi,Seung June; Chun,Sung Duck, Transmitting and receiving control information for multimedia broadcast/multicast service in mobile communication system.
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