Method and device of data transmission in physical uplink control channel

Abstract

The invention discloses a method and a device of data transmission in a physical uplink control channel (PUCCH). When user equipment (UE) in a neighborhood is provided with a same public neighborhood identification, the method of the data transmission in the PUCCH comprises confirming a first base sequence according to the public neighborhood identification, confirming a first sequence group which comprises the first base sequence and at least one second sequence according to the first base sequence and a corresponding relationship between the first sequence and the second sequence, wherein the second sequence is obtained according to relevance between the second sequence and the first base sequence; confirming a target base sequence in the first sequence group; carrying out cyclic shift on the target base sequence according to a cyclic shift mode which is confirmed through consultation with a base station, and obtaining a sequence which is used for sending the PUCCH; and sending the PUCCH according to the PUCCH sequence. According to the method and the device of the data transmission in the PUCCH, when comparison between UE in a macro neighborhood and UE in a micro neighborhood is carried out, mutual interference of UE can be reduced.

Description

technical field [0001] The present invention relates to the technical field of electronic control, and more specifically, to a method and device for transmitting data on a Physical Uplink Control Channel (PUCCH, Physical Uplink Control CHannel). Background technique [0002] In the Long Term Evolution (LTE, Lone Term Evolution) R8 (Release 8) / R9 / R10 system, the sequence number u used by the PUCCH of all UEs (User Equipment, user equipment) in a cell (Cell) and the cell identity of the cell The number (Cell ID) is related to the slot number. That is: for all UEs in a cell, the used base sequence number (also called base sequence number) is the same in a certain time slot. When the PUCCHs of multiple UEs in a cell use the same time-frequency resource During uplink transmission, the PUCCHs of different UEs are distinguished through different cyclic shifts. [0003] However, the above existing technologies may have defects in certain scenarios, for example, in figure 1 The sc...

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Problems solved by technology

[0003] However, the above existing technologies may have defects in certain scenarios, for example, in figure 1 The scenario shown, that is, in a scenario (Scenario 3) of Coordinated Multiple Point transmission and reception (CoMP, Coordinated Multiple Point transmission and reception), a macro base station (Macro eNB) and multiple remote radio heads (RRH, Remote Radio Head) jointly realize the coverage of the cell, where the coverage range of MacroeNB is defined as a macro cell (Macro Cell), and the range covered by RRH is defined as a micro cell (Pico Cell)

Since the downlink transmit power of the Pico cell is much lower than that of the Macro Cell, the coverage of the Pico cell is also much smaller than that of the Macro Cell. If UE-2 is closer to the Pico cell (Cell ID3) If ID1 is far away, UE-2 needs a large transmit power to send data on the PUCCH. If the PUCCH of UE-1 and the PUCCH of UE-2 use the same time-frequency resources at this time, the data sent by UE-2 on the PUCCH The data will also reach the Pico cell (Cell ID3) cell, and because the PUCCH base sequences used by UE-1 and UE-2 are different, the orthogonality between the two is poor, which affects normal communication

Similarly, for UE-3 whose PUCCH uses the PUCCH sequence numbered z, if its PUCCH and UE-2's PUCCH also use the same time-frequency resources, the PUCCH base used by UE-3 and UE-2 The sequences are different, the orthogonality between the two is poor, and there is also a large interference between them

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