Method, device and system for performing wireless communication in wireless communication system
地域：
Tokyo
摘要
A method, device and system for performing wireless communication in a wireless communication system. The wireless communication system includes a low power node and a macro base station with common baseband and user equipment, and the user equipment communicates with the low power node and the macro base station via a plurality of component carriers. The method includes: receiving, by the user equipment, a downlink signal transmitted by the low power node and the macro base station; and transmitting uplink signals to the low power node and the macro base station, wherein the method further includes: transmitting all first uplink signals of the uplink signals to the low power node as a receiving node. According to the method, device and system, it is possible to improve the efficiency of uplink power control of a terminal and/or reduce the burden for uplink control channel transmission of a macro cell.
說明書
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
The present application is a continuation application which claims the benefit of priority under 35 U.S.C. § 120 of U.S. patent application Ser. No. 15/481,832, filed Apr. 7, 2017, which is a division of U.S. patent application Ser. No. 14/786,041, filed Oct. 21, 2015, which is a National Stage of PCT filing PCT/CN2014/077786, filed May 19, 2014, and claims priority to Chinese Patent Application 201310202975.8, filed in the Chinese Patent Office on May 28, 2013, the entire contents of each are incorporated herein by reference.
The disclosure relates to the technical field of wireless communication, and particularly to a method for performing wireless communication in a wireless communication system, a wireless communication device and a wireless communication system.
This section provides background information related to the disclosure, which is not necessarily prior art.
Carrier aggregation before LTE (Long Term Evolution) Rel-11 is carrier aggregation of a single base station node. An aggregated carrier of a terminal is constituted of one primary component carrier and at least one secondary component carrier. In a FDD (Frequency Division Duplex) mode, association between a downlink primary component carrier and an uplink primary component carrier is determined via a SIB2 (System Information Block 2) message. A PUCCH (Physical Uplink Control Channel) signal is transmitted on the uplink primary component carrier. Normally, only one uplink component carrier performs uplink data transmission. Change of the primary component carrier implies occurrence of a handoff behavior.
權(quán)利要求
The invention claimed is:1. A communication device operational as a first node in a communication system including a user terminal and a second node, the communication device comprising:circuitry configured to cause communication with the user terminal with multiple component carriers, the communication including:obtaining a downlink component carrier as a downlink primary component carrier for communication with the user terminal, changing the downlink primary component carrier only in a condition of a handover, obtaining an uplink component carrier for receiving a Physical Uplink Control Channel (PUCCH) from the user terminal, transmitting, via Radio Resource Control (RRC) signaling, designation information regarding an uplink primary component carrier to override an uplink primary component carrier set as a default uplink primary component carrier by the user terminal, and setting an uplink component carrier with a highest or lowest frequency point as the default uplink primary component carrier. 2. The device according to claim 1 , wherein the circuitry is configured to receive PUCCH signals from the user terminal on the uplink component carrier. 3. The device according to claim 1 , wherein the first node is a macro base station and the second node is a low power node (LPN). 4. The device according to claim 1 , wherein the first node operates at a first frequency and the second node operates at a second frequency higher than the first frequency. 5. The device according to claim 1 , wherein the first node and the second node are in a common baseband with each other. 6. A method of performing wireless communication with a user equipment with multiple component carriers, the method comprising:obtaining a downlink component carrier as a downlink primary component carrier for the communication with the user terminal; changing the downlink primary component carrier only in a condition of a handover; obtaining an uplink component carrier for receiving a Physical Uplink Control Channel (PUCCH) from the user terminal; and transmitting, via radio Resource Control (RRC) signaling, designation information regarding an uplink primary component carrier to override an uplink primary component carrier set as a default uplink primary component carrier by the user terminal; and setting an uplink component carrier with a highest or lowest frequency point as the default uplink primary component carrier. 7. The method according to claim 6 , further comprising:transmitting designation information regarding the uplink component carrier, via one of Media Access Control (MAC) signaling, or physical layer signaling. 8. The method according to claim 6 , further comprising:receiving PUCCH signals from the user terminal on an uplink primary component carrier. 9. A communication device operational as a second node in a communication system including a first node and a user terminal, the communication device comprising:circuitry configured to cause communication with the user terminal with multiple component carriers, the communication including:obtaining an uplink component carrier for receiving Physical Uplink Control Channel (PUCCH), receiving, using the circuitry, an uplink control signal on the PUCCH via an uplink component carrier, transmitting, via Radio Resource Control (RRC) signaling, designation information regarding an uplink primary component carrier to override an uplink primary component carrier set as a default uplink primary component carrier by the user terminal, and obtaining an uplink component carrier with a highest or lowest frequency point as the default uplink primary component carrier. 10. The device according to claim 9 , wherein the circuitry is configured to receive PITCH signals from the user terminal on the uplink component carrier. 11. The device according to claim 9 , wherein the first node is a macro base station and the second node is a low power node (LPN). 12. The device according to claim 9 , wherein the first node operates at a first frequency and the second node operates at a second frequency higher than the first frequency. 13. The device according to claim 9 , wherein the communication includes receiving, using the circuitry, uplink control signaling via the uplink component carrier to control transmissions between the user terminal and the first node. 14. The device according to claim 9 , wherein the communication includes receiving the PUCCH via one of Media Access Control (MAC) signaling or physical layer signaling. 15. The device according to claim 9 , wherein the communication includes aggregating multiple component carriers. 16. The device according to claim 9 , wherein the first node and the second node are in a common baseband with each other. 17. A method of performing wireless communication with a user equipment with multiple component carriers, the method comprising:obtaining an uplink component carrier associated for receiving Physical Uplink Control Channel (PUCCH); receiving an uplink control signaling on the PUCCH via an uplink component carrier; transmitting, via Radio Resource Control (RRC) signaling, designation information regarding an uplink primary component carrier to override an uplink primary component carrier set as a default uplink primary component carrier by the user equipment; obtaining an uplink component carrier with a highest or lowest frequency point as the default uplink primary component carrier; and receiving, using the circuitry, Physical Uplink Shared Channel (PUSCH) signals together with the PUCCH via the uplink component carrier. 18. The method according to claim 17 , further comprising:receiving PUCCH signals from the user terminal on the uplink component carrier.
意見反饋
使用該功能遇到問題