UPLINK SYNCHRONIZATION PROCESSING METHOD, USER EQUIPMENT, AND BASE STATION

• US 20170332337A1
• Filed: 07/28/2017
• Published: 11/16/2017
• Est. Priority Date: 09/15/2009
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Chang, Junren, Li, Yajuan, Song, Weiwei, Zhang, Liangliang, Quan, Wei, Qin, Zhongbin, Zhang, Jian
• Granted Patent: US 10,536,912 B2
• Time in Patent Office: Days
• CPC Class Codes: H04W 56/00 Synchronisation arrangements
• CPC Class Codes: H04W 56/0005 synchronizing of arrival of multiple uplinks
• CPC Class Codes: H04W 56/005 compensating for timing error by adjustment in the receiver
• CPC Class Codes: H04W 56/0055 determining timing error of reception due to propagation delay
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

An uplink synchronization processing method, a User Equipment (UE), and a base station are provided. The method includes: receiving a component carrier (CC) uplink synchronization indication message sent by a base station, where the uplink synchronization indication message carries identification information of one or multiple newly configured CCs; sending synchronization signaling to the base station when determining that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information; and receiving a time advanced (TA) adjusting message that is sent by the base station according to the synchronization signaling, and applying a TA value carried in the TA adjusting message to the CC on which the uplink synchronization needs to be executed.

Claims

1. An uplink synchronization processing method, comprising:

receiving an uplink synchronization indication message sent by abase station, wherein the uplink synchronization indication message carries identification information of one or multiple newly configured component carriers (CCs);

sending synchronization signaling to the base station when determining that uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information; and

receiving a time advanced (TA) adjusting message that is sent by the base station according to the synchronization signaling, and applying a TA value carried in the TA adjusting message to a CC on which the uplink synchronization needs to be executed;

wherein the synchronization signaling comprises a dedicated preamble, and the dedicated preamble is shared by multiple CCs.

2. The uplink synchronization processing method according to claim 1, wherein the uplink synchronization indication message is a CC reconfiguration message or a physics downlink control channel (PDCCH) signaling.

3. The uplink synchronization processing method according to claim 1, wherein the TA adjusting message is an extended TA value adjusting command, wherein the extended TA value adjusting command comprises a TA value which needs to be adjusted on the one newly configured CC.

4. The uplink synchronization processing method according to claim 1, wherein determining that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information comprises:

determining that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs according to bit indication information in the uplink synchronization indication message, wherein the bit indication information is used to indicate whether the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs.

5. The uplink synchronization processing method according to claim 1, wherein determining that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information comprises:

determining that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs according to distribution information of the synchronization signaling in the uplink synchronization indication message.

6. The uplink synchronization processing method according to claim 1, further comprising:

applying a unique TA value of a currently used CC to all or a part of CCs on which the uplink synchronization does not need to be executed on the one or multiple newly configured CCs when determining, according to the uplink synchronization indication message, that the uplink synchronization does not need to be executed on all or a part of the one or multiple newly configured CCs.

7. An uplink synchronization processing method, comprising:

sending an uplink synchronization indication message to a User Equipment (UE), wherein the uplink synchronization indication message carries identification information of one or multiple newly configured component carriers (CCs);

receiving synchronization signaling sent by the UE, wherein the synchronization signaling comprises a dedicated preamble and the dedicated preamble is shared by multiple CCs; and

sending a time advanced (TA) adjusting message to the UE according to the synchronization signaling, to instruct the UE to apply a TA value carried in the TA adjusting message to a CC on which the uplink synchronization needs to be executed.

8. The uplink synchronization processing method according to claim 7, wherein the uplink synchronization indication message is a CC reconfiguration message or a physics downlink control channel (PDCCH) signaling.

9. The uplink synchronization processing method according to claim 7, wherein the TA adjusting message is an extended TA value adjusting command, wherein the extended TA value adjusting command comprises a TA value which needs to be adjusted on the one newly configured CC.

10. The uplink synchronization processing method according to claim 7, wherein sending the uplink synchronization indication message to the UE comprises:

sending the uplink synchronization indication message to the UE, wherein bit indication information in the uplink synchronization indication message is used to indicate that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs,

11. The uplink synchronization processing method according to claim 7, wherein sending the uplink synchronization indication message to the UE comprises:

sending the uplink synchronization indication message to the UE, wherein distribution information of the synchronization signaling in the uplink synchronization indication message is used to represent that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs.

12. The uplink synchronization processing method according to claim 7, wherein sending the uplink synchronization indication message to the UE comprises:

sending the uplink synchronization indication message carrying TA value indication information to the UE, wherein when a TA value on any CC in the one newly configured CC is the same as a TA value of any CC in currently used one or multiple CCs, the indicated TA value comprises;

the TA value which is on the one newly configured CC and requires adjustment.

13. The uplink synchronization processing method according to claim 7, wherein sending the uplink synchronization indication message to the UE comprises:

sending the uplink synchronization indication message carrying TA value indication information to the UE, wherein when a TA value on any CC in the one newly configured CC is the same as a TA value of any CC in currently used one or multiple CCs, the indicated TA value comprises;

identification information of the currently used CC, wherein the identification information of the CC represents that the TA value required to be used on the newly configured CC is the same as the TA value on a CC corresponding to the identification information of the CC, when the TA values on the multiple newly configured CCs are the same as the TA value on the currently used CC, the indicated TA value comprises;

TA values respectively corresponding to the multiple newly configured CCs, indices of the TA values respectively corresponding to the multiple newly configured CCs, or an index of the currently used CC, and the TA value required to be used by the newly configured CC is the same as the TA value of a CC corresponding to the index of the CC.

14. A User Equipment (UE), comprising:

a receiver, configured to receive an uplink synchronization indication message sent by a base station, wherein the uplink synchronization indication message carries identification information of one or multiple newly configured component carriers (CCs);

a transmitter, configured to send synchronization signaling to the base station when determining that uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information;

a processor, configured to apply a time advanced (TA) value carried in a TA adjusting message to a CC on which the uplink synchronization needs to be executed, after the receiver receives the TA adjusting message that is sent by the base station according to the synchronization signaling; and

wherein the synchronization signaling comprises a dedicated preamble, and the dedicated preamble is shared by multiple CCs.

15. The UE according to claim 14, wherein the uplink synchronization indication message is a CC reconfiguration message or a physics downlink control channel (PDCCH) signaling.

16. The UE according to claim 14, wherein the TA adjusting message is an extended TA value adjusting command, wherein the extended TA value adjusting command comprises a TA value which needs to be adjusted on the one newly configured CC.

17. The UE according to claim 14, wherein the transmitter is configured to send the synchronization signaling to the base station when determining that the uplink synchronization needs to be executed on all or apart of the one or multiple newly configured CCs, according to bit indication information in the uplink synchronization indication message, wherein the bit indication information is used to indicate whether the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs.

18. The UE according to claim 14, wherein the transmitter is configured to send the synchronization signaling to the base station when determining that the uplink synchronization needs to be executed on all or apart of the one or multiple newly configured CCs, according to distribution information of the synchronization signaling in the uplink synchronization indication message.

19. The UE according to claim 14, wherein the processor is further configured to apply a unique TA value of a currently used CC to all or a part of CCs on which the uplink synchronization does not need to be executed on the one or multiple newly configured CCs when determining, according to the uplink synchronization indication message, that the uplink synchronization does not need to be executed on all or a part of the one or multiple newly configured CCs.

20. A base station, comprising:

a transmitter, configured to send an uplink synchronization indication message to a User Equipment (UE), wherein the uplink synchronization indication message carries identification information of one or multiple newly configured component carriers (CCs);

a receiver, configured to receive synchronization signaling sent by the UE, wherein the synchronization signaling comprises a dedicated preamble and the dedicated preamble is shared by multiple CCs;

wherein the transmitter is further configured to send a time advanced (TA) adjusting message to the UE according to the synchronization signaling, to instruct the UE to apply a TA value carried in the TA adjusting message to a CC on which the uplink synchronization needs to be executed.

21. The base station according to claim 20, wherein the uplink synchronization indication message is a CC reconfiguration message or a physics downlink control channel (PDCCH) signaling.

22. The base station according to claim 20, wherein the TA adjusting message is an extended TA value adjusting command, wherein the extended TA value adjusting command comprises a TA value which needs to be adjusted on the one newly configured CC.

23. The base station according to claim 20, wherein the uplink synchronization indication message comprises:

bit indication information, which is used to indicate that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs.

24. The base station according to claim 20, wherein the uplink synchronization indication message comprises:

distribution information, which is used to represent that the uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs.

25. The base station according to claim 20, wherein the uplink synchronization indication message comprises:

TA value indication information, wherein when a TA value on any CC in the one newly configured CC is the same as a TA value of any CC in currently used one or multiple CCs, the indicated TA value comprises;

the TA value which is on the one newly configured CC and requires adjustment.

26. The base station according to claim 20, wherein the uplink synchronization indication message comprises:

TA value indication information, wherein when a TA value on any CC in the one newly configured CC is the same as a TA value of any CC in currently used one or multiple CCs, the indicated TA value comprises;

identification information of the currently used CC, wherein the identification information of the CC represents that the TA value required to be used on the newly configured CC is the same as the TA value on a CC corresponding to the identification information of the CC, when the TA values on the multiple newly configured CCs are the same as the TA value on the currently used CC, the indicated TA value comprises;

TA values respectively corresponding to the multiple newly configured CCs, indices of the TA values respectively corresponding to the multiple newly configured CCs, or an index of the currently used CC, and the TA value required to be used by the newly configured CC is the same as the TA value of a CC corresponding to the index of the CC.

27. A computer-readable storage medium comprising instructions that, when executed by a computer, cause the computer to:

receive an uplink synchronization indication message sent by a base station, wherein the uplink synchronization indication message carries identification information of one or multiple newly configured component carriers (CCs);

send synchronization signaling to the base station when determining that uplink synchronization needs to be executed on all or a part of the one or multiple newly configured CCs corresponding to the identification information; and

receive a time advanced (TA) adjusting message that is sent by the base station according to the synchronization signaling, and apply a TA value carried in the TA adjusting message to a CC on which the uplink synchronization needs to be executed;

wherein the synchronization signaling comprises a dedicated preamble, and the dedicated preamble is shared by multiple CCs.