Methods and apparatus for wireless network connectivity
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04J-003/06
H04B-007/00
H04W-036/00
H04W-056/00
H04W-036/18
H04W-052/40
H04W-088/02
H04W-052/02
출원번호
US-0965480
(2013-08-13)
등록번호
US-9992756
(2018-06-05)
발명자
/ 주소
Li, Junyi
Laroia, Rajiv
Corson, Mathew Scott
출원인 / 주소
QUALCOMM Incorporated
대리인 / 주소
Arent Fox, LLP
인용정보
피인용 횟수 :
0인용 특허 :
85
초록▼
Methods and apparatus which allow a wireless terminal (302) to simultaneously maintain connections with multiple base stations (304, 306) are described. Each wireless terminal (302) is capable of supporting multiple separate timing and/or other control loops one, for each base station connection the
Methods and apparatus which allow a wireless terminal (302) to simultaneously maintain connections with multiple base stations (304, 306) are described. Each wireless terminal (302) is capable of supporting multiple separate timing and/or other control loops one, for each base station connection thereby allowing the connections to operate independently and in parallel. Different control signals and/or data are transmitted on each connection that is established with a base station (302, 306). In this manner base stations (302, 306) receive different data allowing for asynchronous data transmission. The data received by the base stations (302, 306) can be supplied to a wired asynchronous network (308) without the need to combine the received data prior to supplying it to the wired network (308). The communications techniques of the invention can be used to implement soft handoffs without the need to duplicate data transmissions to multiple base stations.
대표청구항▼
1. A method for communicating with a plurality of base stations, the method being implemented by a wireless terminal, the method comprising: receiving first data via a first connection between the wireless terminal and a first base station;receiving second data via a second connection between the wi
1. A method for communicating with a plurality of base stations, the method being implemented by a wireless terminal, the method comprising: receiving first data via a first connection between the wireless terminal and a first base station;receiving second data via a second connection between the wireless terminal and a second base station, wherein the second data is received in parallel with the first data, and wherein the first data is different from the second data;receiving first control information via the first connection;receiving second control information via the second connection, wherein the second control information is received in parallel with the first control information, and wherein the first control information is different from the second control information;starting transmission of a first data packet to the first base station when wireless channel conditions for the first base station are better than wireless channel conditions for the second base station;determining, after the transmission of the first data packet has started and before the transmission of the first data packet has completed, that the wireless channel conditions for the second base station are better than the wireless channel conditions for the first base station; andfinishing transmission of the first data packet to the first base station in parallel with starting transmission of a second data packet to the second base station. 2. The method of claim 1, further comprising: performing first synchronization operations for the first connection, wherein the first synchronization operations are performed with respect to the first base station; andperforming second synchronization operations for the second connection, wherein the second synchronization operations are performed with respect to the second base station, and wherein the first and second synchronization operations are performed in parallel. 3. The method of claim 2, wherein the first and second synchronization operations are performed independently. 4. The method of claim 2, wherein the first and second synchronization operations comprise frequency synchronization operations. 5. The method of claim 2, wherein the first and second synchronization operations comprise symbol timing synchronization operations. 6. The method of claim 1, wherein the transmission of the second data packet to the second base station is started in response to determining that the wireless channel conditions for the second base station are better than the wireless channel conditions for the first base station. 7. The method of claim 1, wherein the first data packet and the second data packet comprise different parts of a single data file. 8. The method of claim 1, further comprising using different symbol transmission start times when transmitting symbols representing at least portions of the first and second data packets to the first and second base stations. 9. The method of claim 1, further comprising discontinuing transmitting data to the first base station after transmission of the first data packet is complete. 10. The method of claim 1, further comprising separating received signals corresponding to different base stations. 11. A wireless terminal for communicating with a plurality of base stations, comprising: a processor; andcircuitry coupled to said processor configured to: receive first data via a first connection between the wireless terminal and a first base station;receive second data via a second connection between the wireless terminal and a second base station, wherein the second data is received in parallel with the first data;wherein the first data is different from the second data, the circuitry further configured to receive first control information via the first connection and to receive second control information via the second connection, wherein the second control information is received in parallel with the first control information, and wherein the first control information is different from the second control information;start transmission of a first data packet to the first base station when wireless channel conditions for the first base station are better than wireless channel conditions for the second base station;determine, after the transmission of the first data packet has started and before the transmission of the first data packet has completed, that the wireless channel conditions for the second base station are better than the wireless channel conditions for the first base station; andfinish transmission of the first data packet to the first base station in parallel with starting transmission of a second data packet to the second base station, wherein the first data packet and the second data packet comprise different data. 12. The wireless terminal of claim 11, wherein the circuitry is further configured to perform first synchronization operations for the first connection and to perform second synchronization operations for the second connection, wherein the first base station is not synchronized with the second base station, wherein the first synchronization operations are performed with respect to the first base station and the second synchronization operations are performed with respect to the second base station, and wherein the first and second synchronization operations are performed in parallel. 13. The wireless terminal of claim 12, wherein the first and second synchronization operations are performed independently. 14. The wireless terminal of claim 12, wherein the first and second synchronization operations comprise frequency synchronization operations. 15. The wireless terminal of claim 12, wherein the first and second synchronization operations comprise symbol timing synchronization operations. 16. The wireless terminal of claim 11, wherein the transmission of the second data packet to the second base station is started in response to determining that the wireless channel conditions for the second base station are better than the wireless channel conditions for the first base station. 17. The wireless terminal of claim 11, wherein the first data packet and the second data packet comprise different parts of a single data file. 18. The wireless terminal of claim 11, wherein the circuitry is further configured to use different symbol transmission start times when transmitting symbols representing at least portions of the first and second data packets to the first and second base stations. 19. The wireless terminal of claim 11, wherein the circuitry is further configured to discontinue transmitting data to the first base station after transmission of the first data packet is complete. 20. The wireless terminal of claim 11, wherein the circuitry is further configured to separate received signals corresponding to different base stations. 21. A wireless terminal for communicating with a plurality of base stations, comprising: means for receiving first data via a first connection between the wireless terminal and a first base station;means for receiving second data via a second connection between the wireless terminal and a second base station, wherein the second data is received in parallel with the first data, and wherein the first data is different from the second data;means for receiving first control information via the first connection;means for receiving second control information via the second connection, wherein the second control information is received in parallel with the first control information, and wherein the first control information is different from the second control information;means for starting transmission of a first data packet to the first base station when wireless channel conditions for the first base station are better than wireless channel conditions for the second base station;means for determining, after the transmission of the first data packet has started and before the transmission of the first data packet has completed, that the wireless channel conditions for the second base station are better than the wireless channel conditions for the first base station; andmeans for finishing transmission of the first data packet to the first base station in parallel with starting transmission of a second data packet to the second base station. 22. The wireless terminal of claim 21, further comprising: means for performing first synchronization operations for the first connection, wherein the first synchronization operations are performed with respect to the first base station; andmeans for performing second synchronization operations for the second connection, wherein the second synchronization operations are performed with respect to the second base station, and wherein the first and second synchronization operations are performed in parallel. 23. The wireless terminal of claim 22, wherein the first and second synchronization operations are performed independently. 24. The wireless terminal of claim 22, wherein the first and second synchronization operations comprise frequency synchronization operations. 25. The wireless terminal of claim 22, wherein the first and second synchronization operations comprise symbol timing synchronization operations. 26. The wireless terminal of claim 21, wherein the transmission of the second data packet to the second base station is started in response to determining that the wireless channel conditions for the second base station are better than the wireless channel conditions for the first base station. 27. The wireless terminal of claim 21, wherein the first data packet and the second data packet comprise different parts of a single data file. 28. The wireless terminal of claim 21, further comprising means for using different symbol transmission start times when transmitting symbols representing at least portions of the first and second data packets to the first and second base stations. 29. The wireless terminal of claim 21, further comprising means for discontinuing transmitting data to the first base station after transmission of the first data packet is complete. 30. The wireless terminal of claim 21, further comprising means for separating received signals corresponding to different base stations. 31. A computer-program product for facilitating communication between a wireless terminal and a plurality of base stations, the computer-program product comprising a non-transitory computer-readable medium having instructions thereon, the instructions comprising: code for causing the wireless terminal to receive first data via a first connection between the wireless terminal and a first base station;code for causing the wireless terminal to receive second data via a second connection between the wireless terminal and a second base station, wherein the second data is received in parallel with the first data, and wherein the first data is independent from the second data;code for causing the wireless terminal to receive first control information via the first connection;code for causing the wireless terminal to receive second control information via the second connection, wherein the second control information is received in parallel with the first control information, and wherein the first control information is different from the second control information;code for causing the wireless terminal to start transmission of a first data packet to the first base station when wireless channel conditions for the first base station are better than wireless channel conditions for the second base station;code for causing the wireless terminal to determine, after the transmission of the first data packet has started and before the transmission of the first data packet has completed, that the wireless channel conditions for the second base station are better than the wireless channel conditions for the first base station; andcode for causing the wireless terminal to finish transmission of the first data packet to the first base station in parallel with starting transmission of a second data packet to the second base station. 32. The computer-program product of claim 31, wherein the instructions further comprise: code for causing the wireless terminal to perform first synchronization operations for the first connection, wherein the first synchronization operations are performed with respect to the first base station; andcode for causing the wireless terminal to perform second synchronization operations for the second connection, wherein the second synchronization operations are performed with respect to the second base station, and wherein the first and second synchronization operations are performed in parallel. 33. The computer-program product of claim 32, wherein the first and second synchronization operations are performed independently. 34. The computer-program product of claim 32, wherein the first and second synchronization operations comprise frequency synchronization operations. 35. The computer-program product of claim 32, wherein the first and second synchronization operations comprise symbol timing synchronization operations.
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이 특허에 인용된 특허 (85)
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