Cell handover method and related device

Abstract

The embodiment of the application discloses a cell switching method and related equipment, which are applied to the field of communication, wherein in the method, a terminal receives switching configuration information sent by a base station and used for indicating first uplink cell switching, the first uplink cell is used for sending PUSCH information, SRS information or PRACH information; the terminal determines a PUCCH cell used for sending PUCCH information according to the switching configuration information; and the terminal sends PUCCH information to the base station on the PUCCH cell. By using the above cell switching method, the terminal can determine the PUCCH cell used for sending PUCCH information by using the switching configuration information.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a cell handover method and related equipment. Background Technology

[0002] Currently, when a base station instructs a terminal to perform an uplink cell handover, the aforementioned uplink cell is the cell used to transmit information such as Physical Uplink Shared Channel (PUSCH), Sounding Reference Signal (SRS), or Physical Random-Access Channel (PRACH). The base station cannot indicate which uplink cell to use for transmitting Physical Uplink Control Channel (PUCCH) information. Therefore, it is urgent to solve the above-mentioned technical problem. Summary of the Invention

[0003] This invention provides a cell handover method and related equipment, which allows a terminal to determine the PUCCH cell for sending PUCCH information using handover configuration information.

[0004] In a first aspect, embodiments of the present invention provide a cell handover method, comprising the following steps: receiving handover configuration information sent by a base station to indicate a handover of a first uplink cell, wherein the first uplink cell is used to send PUSCH information, SRS information or PRACH information; determining a PUCCH cell for sending PUCCH information based on the handover configuration information; and sending PUCCH information to the base station on the PUCCH cell.

[0005] Optionally, the PUCCH cell is determined based on the handover configuration information, specifically including the following steps:

[0006] When switching the configuration information to RRC configuration information, the RRC configuration information includes uplink cell configuration information corresponding to a preset time unit, which is used to indicate at least one first uplink cell, and determines the cell with the smallest or largest cell index among the at least one first uplink cells as the PUCCH cell.

[0007] Optionally, the PUCCH cell is determined based on the handover configuration information, specifically including the following steps:

[0008] The uplink cell configuration information is also used to indicate that when the uplink carrier corresponding to each of the at least one first uplink cells is determined, the uplink carrier corresponding to the cell with the smallest or largest cell index among the at least one first uplink cells is the PUCCH carrier corresponding to the PUCCH cell.

[0009] At this time, sending PUCCH information to the base station on the PUCCH cell includes the following steps:

[0010] The PUCCH information is sent to the base station on the PUCCH carrier corresponding to the PUCCH cell.

[0011] Optionally, the uplink cell configuration information is also used to indicate the maximum number of transmit antenna ports corresponding to each of the at least one first uplink cells.

[0012] Optionally, the PUCCH cell is determined based on the handover configuration information, specifically including the following steps:

[0013] When the RRC configuration information also includes PUCCH cell indication information corresponding to the preset time unit, the PUCCH cell indication information is used to indicate that one of the at least one first uplink cell is a PUCCH cell, and the PUCCH cell is determined according to the PUCCH cell indication information.

[0014] Optionally, the PUCCH cell is determined based on the handover configuration information, specifically including the following steps:

[0015] The uplink cell configuration information is also used to indicate that when the uplink carrier corresponding to each of the at least one first uplink cells is a first uplink cell, the PUCCH cell indication information is used to indicate that one uplink carrier of the uplink carrier corresponding to the at least one first uplink cell is the PUCCH carrier corresponding to the PUCCH cell, and the PUCCH carrier corresponding to the PUCCH cell is determined according to the PUCCH cell indication information.

[0016] Optionally, the uplink cell configuration information includes the carrier index of the uplink carrier corresponding to each of the first uplink cells in at least one first uplink cell.

[0017] Optionally, the uplink cell configuration information includes a cell index for each of the first uplink cells in at least one first uplink cell.

[0018] Optionally, the PUCCH cell is determined based on the handover configuration information, specifically including the following steps:

[0019] When the configuration information is switched to MAC-CE configuration information, the MAC-CE configuration information is used to indicate at least one active first uplink cell, and to determine the cell with the smallest or largest cell index among the at least one active first uplink cells as the PUCCH cell.

[0020] Optionally, the PUCCH cell is determined based on the handover configuration information, specifically including the following steps:

[0021] MAC-CE configuration information is also used to indicate that when the uplink carrier corresponding to each of the at least one active first uplink cells is determined, the uplink carrier corresponding to the cell with the smallest or largest cell index among the at least one active first uplink cells is the PUCCH carrier corresponding to the PUCCH cell.

[0022] At this time, sending PUCCH information to the base station on the PUCCH cell includes the following steps:

[0023] The PUCCH information is sent to the base station on the PUCCH carrier corresponding to the PUCCH cell.

[0024] Optionally, the PUCCH cell is determined based on the handover configuration information, specifically including the following steps:

[0025] The MAC-CE configuration information also indicates that when one of the at least one active first uplink cells is a PUCCH cell, the PUCCH cell is determined based on the MAC-CE configuration information.

[0026] Optionally, the PUCCH cell is determined based on the handover configuration information, specifically including the following steps:

[0027] The MAC-CE configuration information also indicates that when one of the uplink carriers corresponding to at least one active first uplink cell is the PUCCH carrier corresponding to the PUCCH cell, the PUCCH carrier corresponding to the PUCCH cell is determined according to the MAC-CE configuration information.

[0028] Optionally, the MAC-CE configuration information includes the activation cell bit indicating the first uplink cell to be activated and the PUCCH cell bit indicating the PUCCH cell.

[0029] Optionally, the MAC-CE configuration information includes the carrier index of the uplink carrier corresponding to each of the at least one active first uplink cells.

[0030] Optionally, the MAC-CE configuration information includes the cell index of each of the first uplink cells in at least one active first uplink cell.

[0031] Optionally, the PUCCH cell is determined based on the handover configuration information, specifically including the following steps:

[0032] When the configuration information is switched to downlink control information, the downlink control information is used to indicate at least one first uplink cell, determine the cell with the smallest or largest cell index among the at least one first uplink cells as the PUCCH cell, or determine the uplink cell configured by the base station for sending PUCCH information as the PUCCH cell.

[0033] Optionally, the PUCCH cell is determined based on the handover configuration information, specifically including the following steps:

[0034] The downlink control information also indicates that when determining the uplink carrier corresponding to each of the first uplink cells in at least one first uplink cell, the uplink carrier corresponding to the cell with the smallest or largest cell index is determined, or the uplink carrier corresponding to the uplink cell configured by the base station for transmitting PUCCH information is the PUCCH carrier corresponding to the PUCCH cell.

[0035] Optionally, the cell handover method further includes the following steps:

[0036] The system receives PUCCH configuration information sent by the base station. The PUCCH configuration information is used to indicate the uplink cell used to send PUCCH information, or it is used to indicate the uplink carrier corresponding to the uplink cell used to send PUCCH information.

[0037] Optionally, the PUCCH cell is determined based on the handover configuration information, specifically including the following steps:

[0038] When switching the configuration information to group common-downlink control information or terminal-specific downlink control information without uplink scheduling data, the downlink control information indicates at least one first uplink cell and indicates that one of the at least one first uplink cell is a PUCCH cell, and the PUCCH cell is determined according to the downlink control information.

[0039] Optionally, the downlink control information includes at least one first bit, which corresponds one-to-one with at least one first uplink cell, and one of the first bits indicates that the first uplink cell corresponding to that bit is used as a PUCCH cell.

[0040] Optionally, the PUCCH cell is determined based on the handover configuration information, specifically including the following steps:

[0041] The downlink control information also indicates the uplink carrier corresponding to each of the first uplink cells in at least one first uplink cell, and when it indicates that one of the uplink carriers corresponding to the at least one first uplink cell is the PUCCH carrier corresponding to the PUCCH cell, the PUCCH carrier corresponding to the PUCCH cell is determined according to the downlink control information.

[0042] Optionally, the downlink control information includes at least one second bit, which corresponds one-to-one with the uplink carrier of at least one first uplink cell, and one of the second bits indicates that the uplink carrier of the first uplink cell corresponding to that bit is used as the PUCCH carrier of the PUCCH cell.

[0043] Secondly, a cell handover method is also provided, including the following steps:

[0044] The terminal is sent handover configuration information to indicate the handover of the first uplink cell. The first uplink cell is used to send PUSCH information, SRS information or PRACH information, so that the terminal can determine the PUCCH cell used to send PUCCH information according to the handover configuration information.

[0045] The receiving terminal sends PUCCH information on the PUCCH cell.

[0046] Optionally, the configuration information is switched to RRC configuration information, which includes uplink cell configuration information corresponding to a preset time unit for indicating at least one first uplink cell, wherein the cell with the smallest or largest cell index among the at least one first uplink cell is the PUCCH cell.

[0047] Optionally, receiving PUCCH information sent by the receiving terminal on the PUCCH cell specifically includes the following steps:

[0048] Receiving uplink cell configuration information is also used to indicate, when indicating the uplink carrier corresponding to each of the at least one first uplink cells, the PUCCH information transmitted by the terminal on the uplink carrier corresponding to the cell with the smallest or largest cell index in the at least one first uplink cell.

[0049] Optionally, the uplink cell configuration information is also used to indicate the maximum number of transmit antenna ports corresponding to each of the at least one first uplink cells.

[0050] Optionally, receiving PUCCH information sent by the receiving terminal on the PUCCH cell specifically includes the following steps:

[0051] When receiving RRC configuration information, the PUCCH cell indication information corresponding to the preset time unit is also included, the PUCCH cell indication information is used to indicate that one of at least one first uplink cell is a PUCCH cell, and the terminal sends PUCCH information on the PUCCH cell determined according to the PUCCH cell indication information.

[0052] Optionally, receiving PUCCH information sent by the receiving terminal on the PUCCH cell specifically includes the following steps:

[0053] The uplink cell configuration information is also used to indicate that when the uplink carrier corresponding to each of the at least one first uplink cell is a first uplink cell, the PUCCH cell indication information is used to indicate that one uplink carrier of the uplink carrier corresponding to the at least one first uplink cell is a PUCCH carrier corresponding to the PUCCH cell, and the terminal transmits PUCCH information on the PUCCH carrier corresponding to the PUCCH cell determined according to the PUCCH cell indication information.

[0054] Optionally, the configuration information is switched to MAC-CE configuration information, which indicates at least one active first uplink cell, and the cell with the smallest or largest cell index among the at least one active first uplink cell is the PUCCH cell.

[0055] Optionally, receiving PUCCH information sent by the receiving terminal on the PUCCH cell specifically includes the following steps:

[0056] When receiving MAC-CE configuration information, the terminal transmits PUCCH information on the uplink carrier corresponding to the cell with the smallest or largest cell index among the at least one active first uplink cells when the uplink carrier corresponding to each first uplink cell in at least one active first uplink cell is also indicated.

[0057] Optionally, receiving PUCCH information sent by the receiving terminal on the PUCCH cell specifically includes the following steps:

[0058] When the received MAC-CE configuration information also indicates that one of the at least one active first uplink cells is a PUCCH cell, the terminal sends PUCCH information on the PUCCH cell determined by the MAC-CE configuration information.

[0059] Optionally, receiving PUCCH information sent by the receiving terminal on the PUCCH cell specifically includes the following steps:

[0060] When the received MAC-CE configuration information further indicates that one of the uplink carriers corresponding to at least one active first uplink cell is a PUCCH carrier corresponding to a PUCCH cell, the terminal transmits PUCCH information on the PUCCH carrier corresponding to the PUCCH cell determined according to the MAC-CE configuration information.

[0061] Optionally, the configuration information can be switched to downlink control information, which is used to indicate at least one first uplink cell, wherein the cell with the smallest or largest cell index among the at least one first uplink cell is the PUCCH cell, or the uplink cell indicated by the PUCCH configuration information is the PUCCH cell.

[0062] Optionally, receiving PUCCH information sent by the receiving terminal on the PUCCH cell specifically includes the following steps:

[0063] When receiving downlink control information, the terminal also indicates, when receiving uplink carriers corresponding to each of the first uplink cells in at least one first uplink cell, that the terminal transmits PUCCH information on the uplink carrier corresponding to the cell with the smallest or largest cell index, or on the uplink carrier corresponding to the uplink cell indicated by the PUCCH configuration information.

[0064] Optionally, the cell handover method further includes the following steps:

[0065] Send PUCCH configuration information to the terminal. The PUCCH configuration information is used to indicate the uplink cell used by the terminal to send PUCCH information, or to indicate the uplink carrier corresponding to the uplink cell used by the terminal to send PUCCH information.

[0066] Thirdly, a terminal is also provided, including:

[0067] The receiving module is used to receive handover configuration information sent by the base station to indicate the handover of the first uplink cell. The first uplink cell is used to send Physical Uplink Shared Channel (PUSCH) information, Sounding Reference Signal (SRS) information, or Physical Random Access Channel (PRACH) information.

[0068] The determination module is used to determine the PUCCH cell for sending Physical Uplink Control Channel (PUCCH) information based on the handover configuration information;

[0069] The transmitting module is used to send PUCCH information to the base station on the PUCCH cell.

[0070] Fourthly, a chip is also provided for receiving handover configuration information sent by a base station to indicate a handover of a first uplink cell, wherein the first uplink cell is used to send Physical Uplink Shared Channel (PUSCH) information, Sounding Reference Signal (SRS) information, or Physical Random Access Channel (PRACH) information.

[0071] The chip is also used to determine the PUCCH cell for sending Physical Uplink Control Channel (PUCCH) information based on the handover configuration information;

[0072] The chip is also used to send PUCCH information to the base station on the PUCCH cell.

[0073] Fifthly, a chip module is also provided, including transceiver components and a chip.

[0074] The chip is used to receive handover configuration information sent by the base station through the transceiver component, which is used to indicate the handover of the first uplink cell. The first uplink cell is used to send Physical Uplink Shared Channel (PUSCH) information, Sounding Reference Signal (SRS) information, or Physical Random Access Channel (PRACH) information.

[0075] The chip is also used to determine the PUCCH cell for sending Physical Uplink Control Channel (PUCCH) information based on the handover configuration information;

[0076] The chip is also used to send PUCCH information to the base station on the PUCCH cell via the transceiver component.

[0077] Sixthly, a base station is also provided, comprising:

[0078] The sending module is used to send handover configuration information to the terminal to indicate the handover of the first uplink cell. The first uplink cell is used to send PUSCH information, SRS information or PRACH information, so that the terminal can determine the PUCCH cell to send PUCCH information according to the handover configuration information.

[0079] The receiving module is used to receive PUCCH information sent by the terminal on the PUCCH cell.

[0080] In a seventh aspect, a cell handover device is also provided, including: a processor and a memory;

[0081] The processor is connected to a memory, wherein the memory is used to store program code, and the processor is used to call the program code to execute the cell handover method as described in the first aspect and / or the second aspect.

[0082] Eighthly, a computer storage medium is also provided, the computer storage medium storing a computer program, the computer program including program instructions, which, when executed by a processor, perform the cell handover method as described in the first and / or second aspects. Attached Figure Description

[0083] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0084] Figure 1 This is a flowchart illustrating a cell handover method provided in an embodiment of the present invention;

[0085] Figure 2 This is a schematic diagram of the interaction process of a cell handover method provided in an embodiment of the present invention;

[0086] Figure 3 This is a schematic diagram of MAC-CE configuration information provided in an embodiment of the present invention;

[0087] Figure 4This is a schematic diagram of the structure of a terminal provided in an embodiment of the present invention;

[0088] Figure 5 This is a schematic diagram of the structure of a base station provided in an embodiment of the present invention;

[0089] Figure 6 This is a schematic diagram of the structure of a cell handover device provided in an embodiment of the present invention. Detailed Implementation

[0090] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0091] It should be understood that the terms "first," "second," etc., in the specification, claims, and drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0092] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0093] The cell handover method shown in this embodiment can be applied to terminals (i.e., user terminals or user equipment, UE) or base stations. The terminals include, but are not limited to, electronic devices such as mobile phones, tablets, wearable devices, sensors, IoT devices, multimedia devices, and streaming media devices. The base stations include, but are not limited to, base stations in communication systems such as 4G base stations, 5G base stations, and 6G base stations. The base station can communicate with the terminal.

[0094] For example, the uplink physical channels defined in 5G mainly include three types: the Physical Uplink Shared Channel (PUSCH), the Physical Uplink Control Channel (PUCCH), and the Physical Random Access Channel (PRACH). The uplink physical channels employ QPSK, 16QAM, 64QAM, and 256QAM modulation schemes. Specifically, the PUCCH carries uplink control information. The PUSCH carries uplink user information and higher-layer signaling. The PRACH carries the transmission of the random access preamble sequence; the base station establishes uplink synchronization by detecting the sequence and exchanging subsequent signaling.

[0095] In addition, in wireless communication, the sounding reference signal (SRS) is used to estimate uplink channel frequency domain information for frequency-selective scheduling, and to estimate downlink channel information for downlink beamforming. Downlink control information (DCI), on the other hand, is a special set of information for scheduling downlink data channels (e.g., the Physical Downlink Shared Channel, PDSCH) or uplink data channels (e.g., PUSCH).

[0096] refer to Figure 1 and Figure 2 , Figure 1 This is a flowchart illustrating a cell handover method provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the interaction flow of a cell handover method provided in an embodiment of the present invention; the cell handover method provided in this embodiment of the present invention, applied to a terminal, includes the following steps:

[0097] 101. The terminal receives handover configuration information sent by the base station to indicate the handover of the first uplink cell. The first uplink cell is used to send PUSCH information, SRS information or PRACH information, etc. In other words, the handover configuration information is not used to handover the PUCCH cell.

[0098] Accordingly, on the base station 201 side, the base station sends the aforementioned handover configuration information to the terminal.

[0099] 102. The terminal determines the PUCCH cell to send PUCCH information based on the handover configuration information.

[0100] Specifically, terminal 202 uses the received handover configuration information to determine the PUCCH cell.

[0101] 103. The terminal sends PUCCH information to the base station on the PUCCH cell.

[0102] Accordingly, the base station receives the PUCCH information sent by the terminal on the PUCCH cell.

[0103] use Figure 1 The cell handover method shown is different from the prior art in which the PUCCH cell cannot be determined when performing the first uplink cell handover. The embodiments of the present invention can determine the PUCCH cell based on the handover configuration information, so that the terminal can send PUCCH information to the base station on the PUCCH cell, effectively improving the communication efficiency between the terminal and the base station.

[0104] In one possible embodiment, step 102 specifically includes the following steps:

[0105] When the configuration information is switched to Radio Resource Control (RRC) configuration information, the RRC configuration information includes uplink cell configuration information corresponding to a preset time unit, which is used to indicate at least one first uplink cell, and determines the cell with the smallest or largest cell index among the at least one first uplink cell as the PUCCH cell.

[0106] Specifically, when the base station indicates a first uplink cell handover via RRC configuration information, the RRC configuration information includes uplink cell configuration information corresponding to a preset time unit, used to indicate at least one first uplink cell. The RRC configuration information may include uplink cell configuration information corresponding to at least one preset time unit, and the specific size of the preset time unit can be set according to actual conditions. The terminal can determine the PUCCH cell corresponding to a preset time unit based on the uplink cell configuration information corresponding to that preset time unit.

[0107] In one possible embodiment, the uplink cell configuration information includes a cell index for each of at least one first uplink cell. Simply put, a cell index is used to indicate a first uplink cell. The cell index can be a cell physical ID, which can consist of at least one of numbers, letters, special characters, etc. For example, a cell physical ID consisting of numbers such as 0, 1, 2, 3, etc.

[0108] Example 1: This example uses the PUCCH cell with the smallest carrier index as an example. Assuming the terminal has two transmit antennas, two carrier switching patterns (pattern 0 and pattern 1) need to be configured. These carrier switching patterns can be understood as the RRC configuration information mentioned above. Each carrier switching pattern contains five (exemplary) cell indexes of the first uplink cell within a reference carrier slot length (which can be understood as a preset time unit), as shown in Table 1.

[0109] Table 1

[0110] Pattern 1 cell index = 2 cell index = 2 cell index = 3 cell index = 1 cell index = 0 Reference carrier slot 0 1 2 3 4

[0111] As shown in Table 1, the cell index represents the cell index of the first uplink cell, where:

[0112] The uplink cell configuration information corresponding to slot0 is {cell index = 1} and {cell index = 2}, meaning the terminal can send uplink data on the first uplink cell 1 and the first uplink cell 2. In this case, the terminal can determine that it is sending PUCCH information on the first uplink cell 1 based on the cell index, i.e., the first uplink cell 1 is the PUCCH cell.

[0113] The uplink cell configuration information corresponding to slot1 is {NA} and {cell index = 2}, meaning the terminal can send uplink data on the first uplink cell 2, but not on other cells. Similarly, at this time, the terminal can determine that it will send PUCCH information on the first uplink cell 2.

[0114] The uplink cell configuration information corresponding to slot2 is {cell index = 1} and {cell index = 3}, meaning the terminal can send uplink data on both the first uplink cell 1 and the first uplink cell 3. In this case, the terminal can determine whether to send PUCCH information on the first uplink cell 1.

[0115] In one possible embodiment, step 102 specifically includes the following steps:

[0116] The uplink cell configuration information is also used to indicate that when the uplink carrier corresponding to each of the at least one first uplink cells is determined, the uplink carrier corresponding to the cell with the smallest or largest cell index among the at least one first uplink cells is the PUCCH carrier corresponding to the PUCCH cell.

[0117] At this time, sending PUCCH information to the base station on the PUCCH cell includes the following steps:

[0118] The PUCCH information is sent to the base station on the PUCCH carrier corresponding to the PUCCH cell.

[0119] Specifically, the uplink cell configuration information can indicate not only the first uplink cell but also the uplink carrier corresponding to that first uplink cell. In this case, the PUCCH carrier used to transmit PUCCH information can be determined based on the RRC configuration information; that is, the uplink carrier corresponding to at least one of the first uplink cells with the smallest or largest cell index is the PUCCH carrier. In particular, when multiple cells have the same smallest or largest index, the uplink carrier with the smallest or largest carrier index is determined as the PUCCH carrier.

[0120] In one possible embodiment, the uplink cell configuration information includes a carrier index of the uplink carrier corresponding to each of the first uplink cells in at least one first uplink cell.

[0121] Specifically, in the uplink cell configuration information, the uplink carrier is identified by the carrier index of the uplink carrier. The carrier index can be a carrier ID, which can be composed of at least one of numbers, letters, special characters, etc. For example, the carrier ID is composed of numbers, such as 0, 1, 2, 3, etc.

[0122] Example 2: This example uses the PUCCH carrier of the cell with the smallest carrier index as an example. Assuming the terminal has two transmit antennas, two carrier switching patterns (pattern 0 and pattern 1) need to be configured. These carrier switching patterns can be understood as the RRC configuration information mentioned above. Each carrier switching pattern contains five (exemplary) cell index information of the first uplink cell within the corresponding reference carrier time slot length (which can be understood as a preset time unit), as well as the carrier index information of the uplink carrier corresponding to the first uplink carrier, as shown in Table 2.

[0123] Table 2

[0124]

[0125]

[0126] As shown in Table 2, the cell index represents the cell index of the first uplink cell, and the carrier index represents the carrier index of the uplink carrier corresponding to the first uplink cell, where:

[0127] The uplink cell configuration information corresponding to slot0 is {cell index = 1, carrier index = 0} and {cell index = 2, carrier index = 0}. This means the terminal can transmit uplink information on carrier 0 of the first uplink cell 1, and also on carrier 0 of the first uplink cell 2. In this case, the terminal can determine, based on the cell index, that it can transmit PUCCH information on carrier 0 of the first uplink cell 1; that is, the first uplink cell 1 is a PUCCH cell, and carrier 0 is a PUCCH carrier.

[0128] The uplink cell configuration information corresponding to slot1 is {NA} and {cell index = 2, carrier index = 0}, meaning the terminal can transmit uplink on carrier 0 of the first uplink cell 2, but cannot transmit uplink on other cells. Similarly, at this time, the terminal can determine that it will transmit PUCCH information on carrier 0 of the first uplink cell 2.

[0129] The uplink cell configuration information corresponding to slot2 is {cell index = 1, carrier index = 0} and {cell index = 3, carrier index = 0}, meaning the terminal can transmit uplink on carrier 0 of the first uplink cell 1 and on carrier 0 of the first uplink cell 3. In this case, the terminal can determine whether to transmit PUCCH information on carrier 0 of the first uplink cell 1.

[0130] In one possible embodiment, the uplink cell configuration information is also used to indicate the maximum number of transmit antenna ports corresponding to each of the at least one first uplink cell.

[0131] Example 3: This example corresponds to Example 1. In this case, each carrier switching pattern contains 5 (exemplary) cell index information of the first uplink cell within the corresponding reference carrier time slot length (which can be understood as a preset time unit) and the maximum number of transmit antenna ports corresponding to the first uplink cell, as shown in Table 3.

[0132] Table 3

[0133]

[0134] As shown in Table 3, cell index represents the cell index of the first uplink cell, and max antenna ports represents the maximum number of transmit antenna ports corresponding to the first uplink cell, where:

[0135] The uplink cell configuration information corresponding to slot0 is {cell index = 1, maximum number of transmit antenna ports = 1} and {cell index = 2, maximum number of transmit antenna ports = 1}. This means the terminal can transmit uplink information on the first uplink cell 1 with a maximum of one antenna port, and on the first uplink cell 2 with a maximum of one antenna port. At this time, the terminal can determine whether to transmit PUCCH information on the first uplink cell 1 based on the cell index.

[0136] The uplink cell configuration information for slot2 is {cell index = 1, maximum number of transmit antenna ports = 2} and {cell index = 3, maximum number of transmit antenna ports = 1}. This means the terminal can transmit uplink information on the first uplink cell 1 with a maximum of 2 antenna ports, and on the first uplink cell 3 with a maximum of 1 antenna port. Since the terminal only has two transmit antennas, meaning it has a maximum concurrent transmission capability of two, the base station cannot exceed the terminal's maximum transmission capability when scheduling or configuring uplink transmission. Although the RRC configuration information is configured to exceed the terminal's maximum transmission capability, it is not allowed to simultaneously transmit uplink information on the first uplink cell 1 with 2 antenna ports and on the first uplink cell 3 with 1 antenna. If two first uplink cells are scheduled or configured for concurrent transmission, uplink transmission can only be performed on the first uplink cell 1 with 1 antenna port and on the first uplink cell 3 with 1 antenna. If only one cell is scheduled or configured for uplink transmission, uplink transmission can be performed on the first uplink cell 1 with 2 ports. In this case, the terminal can determine that it will transmit PUCCH information on the first uplink cell 1.

[0137] Example 4: This example corresponds to Example 2. In this case, each carrier switching pattern contains the cell index information of the first uplink cell within 5 (exemplary) corresponding reference carrier time slot lengths (which can be understood as preset time units), the carrier index information of the uplink carrier corresponding to the first uplink carrier, and the maximum number of transmit antenna ports corresponding to the first uplink cell, as shown in Table 4.

[0138] Table 4

[0139]

[0140] As shown in Table 4, cell index represents the cell index of the first uplink cell, carrier index represents the carrier index of the uplink carrier corresponding to the first uplink cell, and max antenna ports represents the maximum number of transmit antenna ports corresponding to the first uplink cell.

[0141] The uplink cell configuration information corresponding to slot0 is {cell index = 1, carrier index = 0, maximum number of transmit antenna ports = 1} and {cell index = 2, carrier index = 0, maximum number of transmit antenna ports = 1}. This means the terminal can transmit uplink information on carrier 0 of the first uplink cell 1 with a maximum of 1 antenna port, and also on carrier 0 of the first uplink cell 2 with a maximum of 1 antenna port. In this case, the terminal can determine, based on the cell index, to transmit PUCCH information on carrier 0 of the first uplink cell 1.

[0142] The uplink cell configuration information corresponding to slot2 is {cell index = 1, carrier index = 0, maximum number of transmit antenna ports = 2} and {cell index = 3, carrier index = 0, maximum number of transmit antenna ports = 1}. This means the terminal can transmit uplink information on carrier 0 of the first uplink cell 1 with a maximum of 2 antenna ports, and on carrier 0 of the first uplink cell 3 with a maximum of 1 antenna port. In this case, the terminal can determine that it will transmit PUCCH information on carrier 0 of the first uplink cell 1. Referring to Example 3, similarly, in Example 4, it is not allowed to simultaneously transmit uplink information on carrier 0 of the first uplink cell 1 with 2 antenna ports and on carrier 0 of the first uplink cell 2 with 1 antenna port.

[0143] In one possible embodiment, step 102 specifically includes the following steps:

[0144] When the RRC configuration information also includes PUCCH cell indication information corresponding to the preset time unit, the PUCCH cell indication information is used to indicate that one of the at least one first uplink cell is a PUCCH cell, and the PUCCH cell is determined according to the PUCCH cell indication information.

[0145] Specifically, the RRC configuration information can also configure the PUCCH cell within each preset time unit, that is, it is configured using the PUCCH cell indication information. In other words, the RRC configuration information at this time includes the uplink cell configuration information corresponding to the preset time unit, which is used to indicate at least one first uplink cell, and the PUCCH cell indication information.

[0146] For example, assuming there are 5 preset time units, the RRC configuration information includes information for the 5 preset time units:

[0147] {{Cell index of one or more first uplink cells, PUCCH cell indication information},{Cell index of one or more first uplink cells, PUCCH cell indication information},{Cell index of one or more first uplink cells, PUCCH cell indication information},{Cell index of one or more first uplink cells, PUCCH cell indication information},{Cell index of one or more first uplink cells, PUCCH cell indication information}}.

[0148] or,

[0149] {{Cell index and maximum number of transmit antenna ports of one or more first uplink cells, PUCCH cell indication information},{Cell index and maximum number of transmit antenna ports of one or more first uplink cells, PUCCH cell indication information},{Cell index and maximum number of transmit antenna ports of one or more first uplink cells, PUCCH cell indication information},{Cell index and maximum number of transmit antenna ports of one or more first uplink cells, PUCCH cell indication information},{Cell index and maximum number of transmit antenna ports of one or more first uplink cells, PUCCH cell indication information}}.

[0150] Example 5: Base stations can configure different subcarrier spacings for different carriers for communication. Base stations can configure carrier switching configuration patterns based on a predetermined time slot structure, enabling terminals to know which cells or cells to perform uplink transmissions and on which cells to transmit PUCCH information, for example:

[0151] The uplink cell configuration information corresponding to slot0 is {cell index=1} and {cell index=2}, {PUCCH cell=1}, which means that the terminal can send uplink on the first uplink cell 1 and the first uplink cell 2, and send PUCCH information on the first uplink cell 1.

[0152] The uplink cell configuration information corresponding to slot1 is {cell index = 2}, {PUCCH cell = 2}, which means that the terminal can send uplink information on the first uplink cell 2 and send PUCCH information on the first uplink cell 2.

[0153] The uplink cell configuration information corresponding to slot2 is {cell index=1} and {cell index=3}, {PUCCH cell=1}, which means that the terminal can send uplink information on the first uplink cell 1 and the first uplink cell 3, and send PUCCH information on the first uplink cell 1.

[0154] Example 6: The uplink cell configuration information corresponding to slot0 is {cell index = 1, maximum number of transmit antenna ports = 1} and {cell index = 2, maximum number of transmit antenna ports = 1}, {PUCCH cell = 1}, that is, the terminal can transmit uplink on the first uplink cell 1 and the first uplink cell 2, and transmit PUCCH information on the first uplink cell 1.

[0155] In one possible embodiment, step 102 specifically includes the following steps:

[0156] The uplink cell configuration information is also used to indicate that when the uplink carrier corresponding to each of the at least one first uplink cells is a first uplink cell, the PUCCH cell indication information is used to indicate that one uplink carrier of the uplink carrier corresponding to the at least one first uplink cell is the PUCCH carrier corresponding to the PUCCH cell, and the PUCCH carrier corresponding to the PUCCH cell is determined according to the PUCCH cell indication information.

[0157] Specifically, when the uplink cell configuration information indicates the uplink carrier corresponding to each first uplink cell, the PUCCH cell indication information can indicate the PUCCH carrier corresponding to the PUCCH cell, and the PUCCH carrier is one of the uplink carriers corresponding to at least one first uplink cell indicated by the uplink cell configuration information.

[0158] For example, assuming there are 5 preset time units, the RRC configuration information includes information for the 5 preset time units:

[0159] {{Cell index and carrier index of one or more first uplink cells, PUCCH cell indication information},{Cell index and carrier index of one or more first uplink cells, PUCCH cell indication information},{Cell index and carrier index of one or more first uplink cells, PUCCH cell indication information},{Cell index and carrier index of one or more first uplink cells, PUCCH cell indication information},{Cell index and carrier index of one or more first uplink cells, PUCCH cell indication information}}.

[0160] or,

[0161] {{Cell index, carrier index, and maximum number of transmit antenna ports of one or more first uplink cells, PUCCH cell indication information},{Cell index, carrier index, and maximum number of transmit antenna ports of one or more first uplink cells, PUCCH cell indication information},{Cell index, carrier index, and maximum number of transmit antenna ports of one or more first uplink cells, PUCCH cell indication information},{Cell index, carrier index, and maximum number of transmit antenna ports of one or more first uplink cells, PUCCH cell indication information},{Cell index, carrier index, and maximum number of transmit antenna ports of one or more first uplink cells, PUCCH cell indication information}}.

[0162] At this time, the PUCCH cell indication information indicates the PUCCH cell and the PUCCH carrier.

[0163] Example 7: The uplink cell configuration information corresponding to slot0 is {cell index = 1, carrier index = 0} and {cell index = 2, carrier index = 0}, {PUCCH cell = 1, carrier index = 0}. That is, the terminal can send uplink on carrier 0 of the first uplink cell 1 and carrier 0 of the first uplink cell 2, and send PUCCH information on carrier 0 of the first uplink cell 1.

[0164] The uplink cell configuration information corresponding to slot1 is {cell index = 2, carrier index = 0}, {PUCCH cell = 2, carrier index = 0}, which means that the terminal can send uplink information on carrier 0 of the first uplink cell 2 and send PUCCH information on carrier 0 of the first uplink cell 2.

[0165] The uplink cell configuration information corresponding to slot2 is {cell index = 1, carrier index = 0} and {cell index = 3, carrier index = 0}, {PUCCH cell = 1, carrier index = 0}. That is, the terminal can send uplink on carrier 0 of the first uplink cell 1 and carrier 0 of the first uplink cell 3, and send PUCCH information on carrier 0 of the first uplink cell 1.

[0166] Example 8: The uplink cell configuration information corresponding to slot0 is {cell index = 1, carrier index = 0, maximum number of transmit antenna ports = 1} and {cell index = 2, carrier index = 0, maximum number of transmit antenna ports = 1}, {PUCCH cell = 1, carrier index = 0}. That is, the terminal can transmit uplink on carrier 0 of the first uplink cell 1 with a maximum of 1 antenna port and carrier 0 of the first uplink cell 2 with a maximum of 1 antenna port, and transmit PUCCH information on carrier 0 of the first uplink cell 1.

[0167] In one possible embodiment, step 102 specifically includes the following steps:

[0168] When the configuration information is switched to Medium Access Control-Control Element (MAC-CE) configuration information, the MAC-CE configuration information is used to indicate at least one active first uplink cell and determine the cell with the smallest or largest cell index among the at least one active first uplink cells as the PUCCH cell.

[0169] Specifically, the MAC-CE configuration information sent by the base station indicates at least one active first uplink cell. The terminal can determine the PUCCH cell based on the MAC-CE configuration information, that is, determine the cell with the smallest or largest cell index among the at least one active first uplink cell as the PUCCH cell.

[0170] In one possible embodiment, the MAC-CE configuration information includes the cell index of each of the first uplink cells in at least one active first uplink cell.

[0171] Similarly, referring to the RRC configuration information, the MAC-CE configuration information also uses cell indexes to identify different first uplink cells.

[0172] Example 9: This example uses the cell with the smallest cell index among at least one active first uplink cell as the PUCCH cell. Assume the terminal is configured with four first uplink cells, cells 0-3. When the MAC-CE configuration information indicates that cells 0 and 1 are used for uplink transmission (i.e., cells 0 and 1 are the first uplink cells), it can be determined that cell 0 is used for transmitting PUCCH information.

[0173] In one possible embodiment, step 102 specifically includes the following steps:

[0174] MAC-CE configuration information is also used to indicate that when the uplink carrier corresponding to each of the at least one active first uplink cells is determined, the uplink carrier corresponding to the cell with the smallest or largest cell index among the at least one active first uplink cells is the PUCCH carrier corresponding to the PUCCH cell.

[0175] At this time, sending PUCCH information to the base station on the PUCCH cell includes the following steps:

[0176] The PUCCH information is sent to the base station on the PUCCH carrier corresponding to the PUCCH cell.

[0177] Specifically, when the MAC-CE configuration information indicates the uplink carrier corresponding to the first uplink cell, the terminal can determine the uplink carrier level when identifying the cell to transmit PUCCH information. That is, it can determine the uplink carrier corresponding to the cell with the smallest or largest cell index among at least one active first uplink cell as the PUCCH carrier corresponding to the PUCCH cell, and transmit PUCCH information on that PUCCH carrier. In particular, when multiple cells have the same smallest or largest cell index, the uplink carrier with the smallest or largest carrier index is determined as the PUCCH carrier.

[0178] In one possible embodiment, the MAC-CE configuration information includes a carrier index for the uplink carrier corresponding to each of the at least one active first uplink cells. Specifically, refer to the description of the carrier index in the RRC configuration information.

[0179] Example 10: This example demonstrates how to determine the uplink carrier corresponding to the cell with the smallest cell index among at least one active first uplink cell as the PUCCH carrier for the PUCCH cell. Four cells are configured, each containing carriers 0 and 1. When MAC-CE indicates that carrier 0 of cell 0 and carrier 1 of cell 1 are used for uplink transmission, it can be determined that carrier 0 of cell 0 is used for transmitting PUCCH information.

[0180] In one possible embodiment, step 102 specifically includes the following steps:

[0181] The MAC-CE configuration information also indicates that when one of the at least one active first uplink cells is a PUCCH cell, the PUCCH cell is determined based on the MAC-CE configuration information.

[0182] Specifically, in addition to indicating at least one active first uplink cell, the MAC-CE configuration information also indicates that one of the at least one active first uplink cells is a PUCCH cell. In this case, the terminal can determine the PUCCH cell based on the indication of the MAC-CE configuration information.

[0183] In one possible embodiment, the MAC-CE configuration information includes an activation cell bit indicating the first uplink cell to be activated and a PUCCH cell bit indicating the PUCCH cell.

[0184] Specifically, this embodiment provides a method for indicating the active first uplink cell and PUCCH cell. Each active cell bit corresponds to a first uplink cell. When the active cell bit is a first specific value (e.g., 1 or 0), it indicates that the first uplink cell corresponding to the active cell bit has been activated or switched to the first uplink cell corresponding to the active cell bit. When the active cell bit is a second specific value (e.g., 0 or 1; when the first specific value is 0, the second specific value is 1; and when the first specific value is 1, the second specific value is 0), it indicates that the first uplink cell corresponding to the active cell bit has been deactivated (i.e., not activated) or has not switched to the first uplink cell corresponding to the active cell bit.

[0185] Similarly, each PUCCH cell bit corresponds to a first uplink cell. When the PUCCH cell bit is a third specific value (such as 1 or 0), it indicates that the first uplink cell corresponding to that PUCCH cell bit is used to send PUCCH information. When the PUCCH cell bit is a fourth specific value (such as 0 or 1, where the fourth specific value is 1 when the third specific value is 0, and 0 when the third specific value is 1), it indicates that the first uplink cell corresponding to that PUCCH cell bit is not used to send PUCCH information.

[0186] In one possible embodiment, determining the PUCCH cell based on handover configuration information specifically includes the following steps:

[0187] The MAC-CE configuration information also indicates that when one of the uplink carriers corresponding to at least one active first uplink cell is the PUCCH carrier corresponding to the PUCCH cell, the PUCCH carrier corresponding to the PUCCH cell is determined according to the MAC-CE configuration information.

[0188] Specifically, the MAC-CE configuration information can also be an indication that one of the uplink carriers corresponding to at least one active first uplink cell is the PUCCH carrier corresponding to the PUCCH cell.

[0189] In one possible embodiment, the MAC-CE configuration information includes a third bit indicating the uplink carrier corresponding to the activated first uplink cell and a fourth bit indicating the PUCCH carrier corresponding to the PUCCH cell.

[0190] Specifically, this embodiment provides a method for indicating the uplink carrier corresponding to the activated first uplink cell and the PUCCH carrier corresponding to the PUCCH cell. Each third bit corresponds to an uplink carrier corresponding to the first uplink cell. When the third bit is a first specific value (such as 1 or 0), it indicates that the uplink carrier corresponding to the first uplink cell is activated or switched to the uplink carrier corresponding to the first uplink cell. When the third bit is a second specific value, it indicates that the uplink carrier corresponding to the first uplink cell is deactivated (i.e., not activated) or has not switched to the uplink carrier corresponding to the first uplink cell.

[0191] Similarly, each fourth bit corresponds to an uplink carrier of a first uplink cell. When the fourth bit is a third specific value, it indicates that the uplink carrier of the first uplink cell corresponding to that fourth bit is used to transmit PUCCH information. When the fourth bit is a fourth specific value, it indicates that the uplink carrier of the first uplink cell corresponding to that fourth bit is not used to transmit PUCCH information.

[0192] Example 11: This example uses a first and third specific value of 1, and a second and fourth specific value of 0. (Reference) Figure 3 , Figure 3 This is a schematic diagram of MAC-CE configuration information provided in an embodiment of the present invention; Figure 3In the code, C0-C7 represent byte 1 (Oct1), which respectively represent the first uplink cell that is activated or switched to, or the uplink carrier corresponding to the first uplink cell. When the corresponding bit is set to 1, it means that the cell corresponding to that bit has been activated or switched to the corresponding cell, or that the carrier corresponding to that cell has been activated or switched to the carrier corresponding to the corresponding cell. When the corresponding bit is set to 0, it means that the corresponding cell has been deactivated or has not switched to the corresponding cell, or that the carrier corresponding to that cell has been deactivated or has not switched to the carrier corresponding to the corresponding cell. C8-C... 15 Oct2 represents which first uplink cell or its corresponding uplink carrier is transmitting PUCCH information. When the corresponding bit is set to 1, it means that the corresponding first uplink cell is used to transmit PUCCH information, or that the uplink carrier corresponding to the corresponding first uplink cell is used to transmit PUCCH information. When the corresponding bit is set to 0, it means that the corresponding first uplink cell is not used to transmit PUCCH information, or that the uplink carrier corresponding to the corresponding first uplink cell is not used to transmit PUCCH information.

[0193] In one possible embodiment, step 102 specifically includes the following steps:

[0194] When the configuration information is switched to downlink control information, the downlink control information is used to indicate at least one first uplink cell, determine the cell with the smallest or largest cell index among the at least one first uplink cells as the PUCCH cell, or determine the uplink cell configured by the base station for sending PUCCH information as the PUCCH cell.

[0195] Specifically, when the configuration information is switched to downlink control information, and the downlink control information indicates at least one first uplink cell, the terminal can determine the PUCCH cell based on the downlink control information. For example, the cell with the smallest or largest cell index among the at least one first uplink cell indicated by the downlink control information can be determined as the PUCCH cell. Alternatively, when the configuration information is switched to downlink control information, the terminal uses the uplink cell configured by the base station for sending PUCCH information as the PUCCH cell.

[0196] Furthermore, downlink control information can indicate a first uplink cell by carrying a cell index.

[0197] Example 12: This example uses the cell with the smallest cell index as the PUCCH cell. Assume the terminal is configured with four first uplink cells, such as cells 0 to 3. When the DCI signaling indicates a switch to any of the first uplink cells, cell 0 is used by default to send PUCCH information.

[0198] Example 13: This example uses a high-level configuration, such as base station cell 0, as the PUCCH cell. Assume the terminal is configured with four first uplink cells, such as cells 0 to 3. When DCI signaling indicates a handover to any of the first uplink cells, cell 0 configured by the base station is used to send PUCCH information.

[0199] In one possible embodiment, step 102 specifically includes the following steps:

[0200] The downlink control information also indicates that when determining the uplink carrier corresponding to each of the first uplink cells in at least one first uplink cell, the uplink carrier corresponding to the cell with the smallest or largest cell index is determined, or the uplink carrier corresponding to the uplink cell configured by the base station for transmitting PUCCH information is the PUCCH carrier corresponding to the PUCCH cell.

[0201] Specifically, the downlink control information can also indicate the uplink carrier corresponding to each of the first uplink cells in at least one first uplink cell. In this case, the terminal determines the uplink carrier corresponding to the cell with the smallest or largest cell index based on the downlink control information, or the uplink carrier corresponding to the uplink cell configured by the base station for transmitting PUCCH information is the PUCCH carrier corresponding to the PUCCH cell. In particular, when multiple cells have the same smallest or largest index, the uplink carrier with the smallest or largest carrier index is determined as the PUCCH carrier.

[0202] Example 14: This example uses the uplink carrier corresponding to the cell with the smallest cell index as the PUCCH carrier for the PUCCH cell. Assume that the terminal is configured with four first uplink cells, such as cells 0 to 3, each with carriers 0 and 1. When the DCI signaling indicates a switch to any carrier, carrier 0 of cell 0 is used by default to transmit PUCCH information.

[0203] Example 15: This example uses a higher-level configuration, such as a base station configuring carrier 0 of cell 0 as the PUCCH carrier corresponding to the PUCCH cell. Assume that the terminal is configured with four first uplink cells, such as cell 0 to cell 3, each with carriers 0 and 1. When the DCI signaling indicates a handover to any cell and carrier, carrier 0 of cell 0 configured by the base station is still used to transmit PUCCH information.

[0204] In one possible embodiment, the cell handover method further includes the following steps:

[0205] The system receives PUCCH configuration information sent by the base station. The PUCCH configuration information is used to indicate the uplink cell used to send PUCCH information, or it is used to indicate the uplink carrier corresponding to the uplink cell used to send PUCCH information.

[0206] Accordingly, the base station sends PUCCH configuration information to the terminal.

[0207] Specifically, in the cell handover method of this application embodiment, the base station can configure the PUCCH cell or PUCCH carrier so that the terminal can quickly send PUCCH information to the base station through the PUCCH cell or PUCCH carrier, thereby improving the communication efficiency between the base station and the terminal.

[0208] In one possible embodiment, step 102 specifically includes the following steps:

[0209] When switching the configuration information to Group common-Downlink control information (GC-DCI) or UE-specific DCI without grant, the downlink control information indicates at least one first uplink cell and indicates that one of the at least one first uplink cell is a PUCCH cell, and the PUCCH cell is determined based on the downlink control information.

[0210] Specifically, when the configuration information is switched to group common downlink control information or terminal-specific downlink control information without uplink scheduling data, the group common downlink control information or terminal-specific downlink control information without uplink scheduling data indicates at least one first uplink cell, and indicates that one of the at least one first uplink cell is a PUCCH cell, so that the terminal can determine the PUCCH cell based on the group common downlink control information or terminal-specific downlink control information without uplink scheduling data.

[0211] Furthermore, group common-downlink control information or terminal-specific downlink control information without uplink scheduling data can indicate a first uplink cell through a cell index.

[0212] In one possible embodiment, the downlink control information includes at least one first bit, which corresponds one-to-one with at least one first uplink cell, and one of the first bits indicates that the first uplink cell corresponding to the bit is used as a PUCCH cell.

[0213] Example 16: In this example, taking a terminal configured with 8 first uplink cells as an example, such as cells 0 to 7, the 8 bits in the GC-DCI or terminal-specific downlink control information without uplink scheduling data correspond to each configured first uplink cell. Referring to Table 5, if a bit is set to 1, the first uplink cell corresponding to that bit is used to send PUCCH information; if a bit is set to 0, the first uplink cell corresponding to that bit is not used to send PUCCH information.

[0214] Table 5

[0215] Community 0 Community 1 Community 2 Community 3 Community 4 Community 5 Community 6 Community 7

[0216] In one possible embodiment, step 102 specifically includes the following steps:

[0217] The downlink control information also indicates the uplink carrier corresponding to each of the first uplink cells in at least one first uplink cell, and when it indicates that one of the uplink carriers corresponding to the at least one first uplink cell is the PUCCH carrier corresponding to the PUCCH cell, the PUCCH carrier corresponding to the PUCCH cell is determined according to the downlink control information.

[0218] Specifically, when the configuration information is switched to group common-downlink control information or terminal-specific downlink control information without uplink scheduling data, the group common-downlink control information or terminal-specific downlink control information without uplink scheduling data indicates at least one uplink carrier corresponding to a first uplink cell, and indicates one of the uplink carriers corresponding to the first uplink cell as a PUCCH carrier corresponding to a PUCCH cell, so that the terminal can determine the PUCCH carrier corresponding to the PUCCH cell based on the group common-downlink control information or terminal-specific downlink control information without uplink scheduling data.

[0219] Furthermore, group common-downlink control information or terminal-specific downlink control information without uplink scheduling data can indicate the uplink carrier corresponding to a first uplink cell through a carrier index.

[0220] In one possible embodiment, the downlink control information includes at least one second bit, which corresponds one-to-one with the uplink carrier of at least one first uplink cell, and one of the second bits indicates that the uplink carrier of the first uplink cell corresponding to that bit is used as the PUCCH carrier of the PUCCH cell.

[0221] Example 17: In this example, taking a terminal configured with 8 first uplink cells (cells 0 to 7), each cell is assigned carrier 0 and carrier 1 respectively. In the GC-DCI or terminal-specific downlink control information without uplink scheduling data, 16 bits correspond to each configured cell and carrier. Every two bits in the 16 bits correspond to the cell and its two carriers, as shown in Table 6. If a bit is set to 1, the uplink carrier corresponding to that first uplink cell is used to transmit PUCCH information; if a bit is set to 0, the uplink carrier corresponding to that first uplink cell is not used to transmit PUCCH information.

[0222] Table 6

[0223] Cell 0 carrier 0 Cell 0 carrier 1 Cell 1 carrier 0 Cell 1 carrier 1

[0224] Based on the above-described cell handover method embodiments, the present invention also provides a terminal, as shown in the reference. Figure 4 , Figure 4 This is a schematic diagram of the structure of a terminal provided in an embodiment of the present invention; the terminal includes a receiving module 401, a determining module 402, and a sending module 403, wherein:

[0225] The receiving module 401 is used to receive handover configuration information sent by the base station to indicate the handover of the first uplink cell. The first uplink cell is used to send Physical Uplink Shared Channel (PUSCH) information, Sounding Reference Signal (SRS) information, or Physical Random Access Channel (PRACH) information.

[0226] The determination module 402 is used to determine the PUCCH cell for sending Physical Uplink Control Channel (PUCCH) information based on the handover configuration information;

[0227] The transmitting module 403 is used to transmit PUCCH information to the base station on the PUCCH cell.

[0228] In some possible embodiments, the receiving module 401 is further configured to receive PUCCH configuration information sent by the base station, wherein the PUCCH configuration information is used to indicate the uplink cell for sending PUCCH information, or the PUCCH configuration information is used to indicate the uplink carrier corresponding to the uplink cell for sending PUCCH information.

[0229] For a detailed description of the terminal in this embodiment, please refer to the description of the cell handover method applied to the terminal. The beneficial effects of using the same method will not be repeated here.

[0230] Furthermore, based on the above-described cell handover method embodiments, this application embodiment also provides a chip for receiving handover configuration information sent by a base station to indicate a handover of a first uplink cell, wherein the first uplink cell is used to send Physical Uplink Shared Channel (PUSCH) information, Sounding Reference Signal (SRS) information, or Physical Random Access Channel (PRACH) information.

[0231] The chip is also used to determine the PUCCH cell for sending Physical Uplink Control Channel (PUCCH) information based on the handover configuration information;

[0232] The chip is also used to send PUCCH information to the base station on the PUCCH cell.

[0233] In some possible embodiments, the chip is also used to receive PUCCH configuration information sent by the base station, the PUCCH configuration information being used to indicate the uplink cell for sending PUCCH information, or the PUCCH configuration information being used to indicate the uplink carrier corresponding to the uplink cell for sending PUCCH information.

[0234] For a detailed description of the chip in this embodiment, please refer to the description of the cell handover method applied to the terminal. The beneficial effects of using the same method will not be repeated here.

[0235] Furthermore, based on the above-described cell handover method embodiments, this application also provides a chip module, including a transceiver component and a chip.

[0236] The chip is used to receive handover configuration information sent by the base station through the transceiver component, which is used to indicate the handover of the first uplink cell. The first uplink cell is used to send Physical Uplink Shared Channel (PUSCH) information, Sounding Reference Signal (SRS) information, or Physical Random Access Channel (PRACH) information.

[0237] The chip is also used to determine the PUCCH cell for sending Physical Uplink Control Channel (PUCCH) information based on the handover configuration information;

[0238] The chip is also used to send PUCCH information to the base station on the PUCCH cell via the transceiver component.

[0239] In some possible embodiments, the chip is also configured to receive PUCCH configuration information sent by the base station via a transceiver component. The PUCCH configuration information is used to indicate the uplink cell for sending PUCCH information, or the PUCCH configuration information is used to indicate the uplink carrier corresponding to the uplink cell for sending PUCCH information.

[0240] For a detailed description of the chip module in this embodiment, please refer to the description of the cell handover method applied to the terminal. The beneficial effects of using the same method will not be repeated here.

[0241] Based on the above-described cell handover method embodiments, the present invention also provides a base station, for reference. Figure 5 , Figure 5 This is a schematic diagram of a base station structure provided in an embodiment of the present invention; the base station includes a transmitting module 501 and a receiving module 502, wherein:

[0242] The sending module 501 is used to send handover configuration information to the terminal to indicate the handover of the first uplink cell. The first uplink cell is used to send PUSCH information, SRS information or PRACH information, so that the terminal can determine the PUCCH cell used to send PUCCH information according to the handover configuration information.

[0243] The receiving module 502 is used to receive PUCCH information sent by the terminal on the PUCCH cell.

[0244] In some possible embodiments, the sending module 501 is further configured to send PUCCH configuration information to the terminal. The PUCCH configuration information is used to indicate the uplink cell for which the terminal sends PUCCH information, or to indicate the uplink carrier corresponding to the uplink cell for which the terminal sends PUCCH information.

[0245] For a detailed description of the base station in this embodiment, please refer to the corresponding description of the cell handover method applied to the terminal. The beneficial effects of using the same method will not be repeated here.

[0246] Furthermore, based on the above-described cell handover method embodiments, this application embodiment also provides a chip for sending handover configuration information to a terminal to indicate a handover of a first uplink cell. The first uplink cell is used to send PUSCH information, SRS information, or PRACH information, so that the terminal determines the PUCCH cell for sending PUCCH information based on the handover configuration information.

[0247] The chip is also used to receive PUCCH information sent by the terminal on the PUCCH cell.

[0248] In some possible embodiments, the chip is also used to send PUCCH configuration information to the terminal. The PUCCH configuration information is used to indicate the uplink cell for which the terminal sends PUCCH information, or to indicate the uplink carrier corresponding to the uplink cell for which the terminal sends PUCCH information.

[0249] For a detailed description of the chip in this embodiment, please refer to the corresponding description of the cell handover method applied to the terminal. The beneficial effects of using the same method will not be repeated here.

[0250] Furthermore, based on the above-described cell handover method embodiments, this application also provides a chip module, including a transceiver component and a chip.

[0251] The chip is used to send handover configuration information to the terminal via the transceiver component to indicate the handover of the first uplink cell. The first uplink cell is used to send PUSCH information, SRS information or PRACH information so that the terminal can determine the PUCCH cell for sending PUCCH information based on the handover configuration information.

[0252] The chip is also used to receive PUCCH information sent by the terminal on the PUCCH cell via the transceiver component.

[0253] In some possible embodiments, the chip is also used to send PUCCH configuration information to the terminal via the transceiver component. The PUCCH configuration information is used to indicate the uplink cell for which the terminal sends PUCCH information, or to indicate the uplink carrier corresponding to the uplink cell for which the terminal sends PUCCH information.

[0254] For a detailed description of the chip module in this embodiment, please refer to the corresponding description of the cell handover method applied to the terminal. The beneficial effects of using the same method will not be repeated here.

[0255] Based on the above cell handover method implementation examples, please refer to Figure 6 This is a schematic diagram of a cell handover device provided in an embodiment of the present invention. The cell handover device 600 may include: a processor 601, a network interface 604, and a memory 605. Furthermore, the cell handover device 600 may also include: a user interface 603, and at least one communication bus 602. The communication bus 602 is used to realize communication between these components. The user interface 603 may include a display screen and a keyboard; optionally, the user interface 603 may also include a standard wired interface and a wireless interface. The network interface 604 may optionally include a standard wired interface and a wireless interface (such as a Wi-Fi interface). The memory 605 may be a high-speed RAM memory or a non-volatile memory, such as at least one disk storage device. Optionally, the memory 605 may also be at least one storage device located remotely from the aforementioned processor 601. Figure 6 As shown, the memory 605, which serves as a computer storage medium, may include an operating system, a network communication module, a user interface module, and a device control application program.

[0256] exist Figure 6In the cell handover device 600 shown, the network interface 604 provides network communication functions; the user interface 603 is mainly used to provide an input interface for users; and the processor 601 can be used to call the device control application stored in the memory 605 to implement the steps of the cell handover method described in any of the above method embodiments.

[0257] It should be understood that the cell handover device 600 described in this embodiment of the invention can perform the cell handover method described above, and will not be repeated here. Furthermore, the beneficial effects of using the same method will also not be repeated here.

[0258] Furthermore, it should be noted that this embodiment of the invention also provides a computer storage medium, and the computer program includes program instructions. When the processor executes the program instructions, it can perform the cell handover method described in any of the preceding method embodiments. Therefore, it will not be repeated here. Additionally, the beneficial effects of using the same method will also not be repeated. For technical details not disclosed in the computer storage medium embodiments of this invention, please refer to the description of the method embodiments of this invention.

[0259] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0260] The various devices and products described in the above embodiments include modules / units, which can be software modules / units, hardware modules / units, or a combination of both. For example, for devices and products applied to or integrated into a chip, all modules / units can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs running on a processor integrated within the chip, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits. For devices and products applied to or integrated into a chip module, all modules / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some / units can be... The implementation is achieved through a software program that runs on a processor integrated within the chip module. The remaining modules / units (if any) can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into a terminal, all modules / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components within the terminal. Alternatively, at least some modules / units can be implemented using a software program that runs on a processor integrated within the terminal, while the remaining modules / units (if any) can be implemented using hardware methods such as circuits. The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. Therefore, equivalent variations made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A cell handover method, characterized in that, Includes the following steps: The receiver receives handover configuration information sent by the base station to indicate a handover to a first uplink cell. The first uplink cell is used to send Physical Uplink Shared Channel (PUSCH) information, Sounding Reference Signal (SRS) information, or Physical Random Access Channel (PRACH) information. The handover configuration information includes Radio Resource Control (RRC) configuration information, Medium Access Control-Control Element (MAC-CE) configuration information, or downlink control information. The PUCCH cell for transmitting Physical Uplink Control Channel (PUCCH) information is determined based on the handover configuration information. The PUCCH information is sent to the base station on the PUCCH cell.

2. The method according to claim 1, characterized in that, Determining the PUCCH cell based on the handover configuration information specifically includes the following steps: When the handover configuration information is Radio Resource Control (RRC) configuration information, the RRC configuration information includes uplink cell configuration information corresponding to a preset time unit, used to indicate at least one of the first uplink cells, and determines the cell with the smallest or largest cell index among the at least one first uplink cells as the PUCCH cell.

3. The method according to claim 2, characterized in that, Determining the PUCCH cell based on the handover configuration information specifically includes the following steps: The uplink cell configuration information is also used to indicate that when the uplink carrier corresponding to each of the at least one first uplink cells is used, the uplink carrier corresponding to the cell with the smallest or largest cell index among the at least one first uplink cells is determined to be the PUCCH carrier corresponding to the PUCCH cell. The step of sending PUCCH information to the base station on the PUCCH cell specifically includes the following steps: The PUCCH information is transmitted to the base station on the PUCCH carrier corresponding to the PUCCH cell.

4. The method according to claim 2 or 3, characterized in that, The uplink cell configuration information is also used to indicate the maximum number of transmit antenna ports corresponding to each of the at least one first uplink cell.

5. The method according to any one of claims 2 to 4, characterized in that, Determining the PUCCH cell based on the handover configuration information specifically includes the following steps: When the RRC configuration information also includes PUCCH cell indication information corresponding to the preset time unit, the PUCCH cell indication information is used to indicate that one of the at least one first uplink cell is the PUCCH cell, and the PUCCH cell is determined according to the PUCCH cell indication information.

6. The method according to claim 5, characterized in that, Determining the PUCCH cell based on the handover configuration information specifically includes the following steps: The uplink cell configuration information is also used to indicate that when the uplink carrier corresponding to each of the at least one first uplink cell is an uplink carrier, the PUCCH cell indication information is used to indicate that one uplink carrier of the uplink carrier corresponding to the at least one first uplink cell is the PUCCH carrier corresponding to the PUCCH cell, and the PUCCH carrier corresponding to the PUCCH cell is determined according to the PUCCH cell indication information.

7. The method according to any one of claims 3 to 6, characterized in that, The uplink cell configuration information includes the carrier index of the uplink carrier corresponding to each of the at least one first uplink cell.

8. The method according to any one of claims 2 to 7, characterized in that, The uplink cell configuration information includes the cell index of each of the at least one first uplink cell.

9. The method according to claim 1, characterized in that, Determining the PUCCH cell based on the handover configuration information specifically includes the following steps: When the handover configuration information is Media Access Control-Control Element (MAC-CE) configuration information, the MAC-CE configuration information is used to indicate at least one active first uplink cell, and to determine the cell with the smallest or largest cell index among the at least one active first uplink cells as the PUCCH cell.

10. The method according to claim 9, characterized in that, Determining the PUCCH cell based on the handover configuration information specifically includes the following steps: The MAC-CE configuration information is also used to indicate that when the uplink carrier corresponding to each of the at least one active first uplink cells is used, the uplink carrier corresponding to the cell with the smallest or largest cell index among the at least one active first uplink cells is determined to be the PUCCH carrier corresponding to the PUCCH cell. The step of sending PUCCH information to the base station on the PUCCH cell specifically includes the following steps: The PUCCH information is transmitted to the base station on the PUCCH carrier corresponding to the PUCCH cell.

11. The method according to claim 9 or 10, characterized in that, Determining the PUCCH cell based on the handover configuration information specifically includes the following steps: The MAC-CE configuration information further indicates that when one of the at least one active first uplink cells is the PUCCH cell, the PUCCH cell is determined according to the MAC-CE configuration information.

12. The method according to claim 11, characterized in that, Determining the PUCCH cell based on the handover configuration information specifically includes the following steps: The MAC-CE configuration information further indicates that when one of the uplink carriers corresponding to the at least one activated first uplink cell is the PUCCH carrier corresponding to the PUCCH cell, the PUCCH carrier corresponding to the PUCCH cell is determined according to the MAC-CE configuration information.

13. The method according to claim 11, characterized in that, The MAC-CE configuration information includes the activation cell bit indicating the activated first uplink cell and the PUCCH cell bit indicating the PUCCH cell.

14. The method according to any one of claims 10 to 13, characterized in that, The MAC-CE configuration information includes the carrier index of the uplink carrier corresponding to each of the at least one active first uplink cells.

15. The method according to any one of claims 9 to 14, characterized in that, The MAC-CE configuration information includes the cell index of each of the at least one active first uplink cells.

16. The method according to claim 1, characterized in that, Determining the PUCCH cell based on the handover configuration information specifically includes the following steps: When the handover configuration information is downlink control information, the downlink control information is used to indicate at least one first uplink cell, determine the cell with the smallest or largest cell index among the at least one first uplink cells as the PUCCH cell, or determine the uplink cell configured by the base station for sending PUCCH information as the PUCCH cell.

17. The method according to claim 16, characterized in that, Determining the PUCCH cell based on the handover configuration information specifically includes the following steps: The downlink control information further instructs that when determining the uplink carrier corresponding to each of the at least one first uplink cells, the uplink carrier corresponding to the cell with the smallest or largest cell index is determined, or the uplink carrier corresponding to the uplink cell configured by the base station for transmitting PUCCH information is the PUCCH carrier corresponding to the PUCCH cell.

18. The method according to claim 17, characterized in that, The method further includes the following steps: The system receives PUCCH configuration information sent by the base station. The PUCCH configuration information is used to indicate the uplink cell used to send PUCCH information, or the PUCCH configuration information is used to indicate the uplink carrier corresponding to the uplink cell used to send PUCCH information.

19. The method according to claim 1, characterized in that, Determining the PUCCH cell based on the handover configuration information specifically includes the following steps: When the handover configuration information is group common-downlink control information or terminal-specific downlink control information without uplink scheduling data, the downlink control information indicates at least one of the first uplink cells and indicates that one of the at least one first uplink cells is the PUCCH cell, and the PUCCH cell is determined according to the downlink control information.

20. The method according to claim 19, characterized in that, The downlink control information includes at least one first bit, which corresponds one-to-one with the at least one first uplink cell, and one of the first bits indicates that the first uplink cell corresponding to that bit is used as the PUCCH cell.

21. The method according to claim 19, characterized in that, Determining the PUCCH cell based on the handover configuration information specifically includes the following steps: The downlink control information also indicates the uplink carrier corresponding to each of the at least one first uplink cells, and when it indicates that one of the uplink carriers corresponding to the at least one first uplink cell is the PUCCH carrier corresponding to the PUCCH cell, the PUCCH carrier corresponding to the PUCCH cell is determined according to the downlink control information.

22. The method according to claim 21, characterized in that, The downlink control information includes at least one second bit, which corresponds one-to-one with the uplink carrier corresponding to the at least one first uplink cell, and one of the second bits indicates that the uplink carrier corresponding to the first uplink cell is used as the PUCCH carrier corresponding to the PUCCH cell.

23. A cell handover method, characterized in that, Includes the following steps: The terminal is sent handover configuration information to indicate a handover to a first uplink cell, wherein the first uplink cell is used to send PUSCH information, SRS information, or PRACH information, so that the terminal determines the PUCCH cell for sending PUCCH information based on the handover configuration information; the handover configuration information includes Radio Resource Control (RRC) configuration information, Medium Access Control-Control Element (MAC-CE) configuration information, or downlink control information. Receive PUCCH information sent by the terminal on the PUCCH cell.

24. The method according to claim 23, characterized in that, The handover configuration information is RRC configuration information, which includes uplink cell configuration information corresponding to a preset time unit for indicating at least one first uplink cell. The cell with the smallest or largest cell index among the at least one first uplink cells is the PUCCH cell.

25. The method according to claim 24, characterized in that, Receiving PUCCH information sent by the terminal on the PUCCH cell specifically includes the following steps: Receiving the uplink cell configuration information is also used to indicate, when the terminal sends PUCCH information on the uplink carrier corresponding to the cell with the smallest or largest cell index in the at least one first uplink cell, when the uplink carrier corresponding to each of the at least one first uplink cells is used.

26. The method according to claim 24 or 25, characterized in that, The uplink cell configuration information is also used to indicate the maximum number of transmit antenna ports corresponding to each of the at least one first uplink cell.

27. The method according to any one of claims 24 to 26, characterized in that, Receiving PUCCH information sent by the terminal on the PUCCH cell specifically includes the following steps: When the RRC configuration information received also includes the PUCCH cell indication information corresponding to the preset time unit, the PUCCH cell indication information is used to indicate that one of the at least one first uplink cell is the PUCCH cell, and the terminal sends PUCCH information on the PUCCH cell determined according to the PUCCH cell indication information.

28. The method according to claim 27, characterized in that, Receiving PUCCH information sent by the terminal on the PUCCH cell specifically includes the following steps: Receiving the uplink cell configuration information is further used to indicate that when the uplink carrier corresponding to each of the at least one first uplink cell is a first uplink cell, the PUCCH cell indication information is used to indicate that one uplink carrier of the uplink carrier corresponding to the at least one first uplink cell is a PUCCH carrier corresponding to the PUCCH cell, and the terminal transmits PUCCH information on the PUCCH carrier corresponding to the PUCCH cell determined according to the PUCCH cell indication information.

29. The method according to claim 23, characterized in that, The handover configuration information is MAC-CE configuration information, which indicates at least one active first uplink cell, and the cell with the smallest or largest cell index among the at least one active first uplink cells is the PUCCH cell.

30. The method according to claim 29, characterized in that, Receiving PUCCH information sent by the terminal on the PUCCH cell specifically includes the following steps: When the MAC-CE configuration information further indicates the uplink carrier corresponding to each of the at least one active first uplink cells, the terminal transmits PUCCH information on the uplink carrier corresponding to the cell with the smallest or largest cell index among the at least one active first uplink cells.

31. The method according to claim 29 or 30, characterized in that, Receiving PUCCH information sent by the terminal on the PUCCH cell specifically includes the following steps: When the MAC-CE configuration information further indicates that one of the at least one active first uplink cells is the PUCCH cell, the terminal sends PUCCH information on the PUCCH cell determined by the MAC-CE configuration information.

32. The method according to claim 31, characterized in that, Receiving PUCCH information sent by the terminal on the PUCCH cell specifically includes the following steps: When the MAC-CE configuration information further indicates that one of the uplink carriers corresponding to the at least one active first uplink cell is the PUCCH carrier corresponding to the PUCCH cell, the terminal transmits PUCCH information on the PUCCH carrier corresponding to the PUCCH cell determined according to the MAC-CE configuration information.

33. The method according to claim 23, characterized in that, The handover configuration information is downlink control information, which is used to indicate at least one first uplink cell. The cell with the smallest or largest cell index among the at least one first uplink cells is the PUCCH cell, or the uplink cell indicated by the PUCCH configuration information is the PUCCH cell.

34. The method according to claim 33, characterized in that, Receiving PUCCH information sent by the terminal on the PUCCH cell specifically includes the following steps: When the downlink control information received further indicates the uplink carrier corresponding to each of the at least one first uplink cells, the terminal transmits PUCCH information on the uplink carrier corresponding to the cell with the smallest or largest cell index, or on the uplink carrier corresponding to the uplink cell indicated by the PUCCH configuration information.

35. The method according to claim 34, characterized in that, The method further includes the following steps: The PUCCH configuration information is sent to the terminal. The PUCCH configuration information is used to indicate the uplink cell for which the terminal sends PUCCH information, or to indicate the uplink carrier corresponding to the uplink cell for which the terminal sends PUCCH information.

36. A terminal, characterized in that, include: The receiving module is used to receive handover configuration information sent by the base station to indicate the handover of the first uplink cell. The first uplink cell is used to send Physical Uplink Shared Channel (PUSCH) information, Sounding Reference Signal (SRS) information, or Physical Random Access Channel (PRACH) information. The handover configuration information includes Radio Resource Control (RRC) configuration information, Medium Access Control-Control Element (MAC-CE) configuration information, or downlink control information. The determination module is used to determine the PUCCH cell for sending Physical Uplink Control Channel (PUCCH) information based on the handover configuration information; The transmitting module is used to transmit PUCCH information to the base station on the PUCCH cell.

37. A chip, characterized in that, The chip includes a processor and a data interface. The processor reads instructions stored in the memory through the data interface to execute the following steps: The receiver receives handover configuration information sent by the base station to indicate a handover to a first uplink cell. The first uplink cell is used to send Physical Uplink Shared Channel (PUSCH) information, Sounding Reference Signal (SRS) information, or Physical Random Access Channel (PRACH) information. The handover configuration information includes Radio Resource Control (RRC) configuration information, Medium Access Control-Control Element (MAC-CE) configuration information, or downlink control information. The PUCCH cell for transmitting Physical Uplink Control Channel (PUCCH) information is determined based on the handover configuration information. The PUCCH information is sent to the base station on the PUCCH cell.

38. A chip module, characterized in that, Including transceiver components and chips, The chip is used to receive handover configuration information sent by the base station through the transceiver component, which is used to indicate the handover of the first uplink cell. The first uplink cell is used to send Physical Uplink Shared Channel (PUSCH) information, Sounding Reference Signal (SRS) information, or Physical Random Access Channel (PRACH) information. The handover configuration information includes Radio Resource Control (RRC) configuration information, Medium Access Control-Control Element (MAC-CE) configuration information, or downlink control information. The chip is also used to determine the PUCCH cell for transmitting Physical Uplink Control Channel (PUCCH) information based on the handover configuration information; The chip is also used to send PUCCH information to the base station on the PUCCH cell via the transceiver component.

39. A base station, characterized in that, include: The transmitting module is used to transmit handover configuration information to the terminal for indicating a handover to a first uplink cell. The first uplink cell is used to transmit PUSCH information, SRS information, or PRACH information, so that the terminal determines the PUCCH cell for transmitting PUCCH information based on the handover configuration information. The handover configuration information includes Radio Resource Control (RRC) configuration information, Medium Access Control-Control Element (MAC-CE) configuration information, or downlink control information. The receiving module is used to receive PUCCH information sent by the terminal on the PUCCH cell.

40. A cell handover device, characterized in that, include: Processor and memory; The processor is connected to a memory, wherein the memory is used to store program code, and the processor is used to call the program code to execute the cell handover method as described in any one of claims 1 to 22 and / or any one of claims 23 to 35.

41. A computer storage medium, characterized in that, The computer storage medium stores a computer program, which includes program instructions that, when executed by a processor, perform the cell handover method as described in any one of claims 1 to 22 and / or any one of claims 23 to 35.

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