Uplink transmission method, apparatus, device, and storage medium

Abstract

The application discloses an uplink transmission method, device, equipment and storage medium. The method comprises the following steps: a terminal determines to ignore the time domain position of uplink transmission according to at least one of the following parameters: a timing advance difference value and the position of a switching interval; the timing advance difference value is determined according to a first timing advance and a second timing advance; the first timing advance is the timing advance of a first uplink or a first carrier, and the second timing advance is the timing advance of a second uplink or a second carrier.

Description

Technical Field

[0001] This invention relates to the field of wireless communication technology, and in particular to an uplink transmission method, apparatus, device, and storage medium. Background Technology

[0002] Currently, the network can configure corresponding handover intervals for terminals with uplink handover capabilities. Under specified conditions, the terminal ignores uplink transmission during the handover interval. Current terminal capabilities support uplink link handover between at most two different frequency bands; however, the network-configured uplink link handover only applies when the two carriers carrying the uplink have the same timing advance. Summary of the Invention

[0003] In view of this, embodiments of the present invention aim to provide an uplink transmission method, apparatus, device, and storage medium.

[0004] The technical solution of this invention is implemented as follows:

[0005] At least one embodiment of the present invention provides an uplink transmission method applied to a terminal, the method comprising:

[0006] The terminal determines the time domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, and the position of the switching interval;

[0007] The timing advance difference is determined based on a first timing advance and a second timing advance; the first timing advance is the timing advance of the first uplink or the first carrier, and the second timing advance is the timing advance of the second uplink or the second carrier.

[0008] Furthermore, according to at least one embodiment of the present invention, the position of the switching interval is aligned with the time slot boundary of the carrier in which the switching interval is located.

[0009] Furthermore, according to at least one embodiment of the present invention,

[0010] The carrier in which the switching interval is located is the first carrier;

[0011] or,

[0012] The carrier in which the switching interval is located is the carrier corresponding to the first uplink.

[0013] Furthermore, according to at least one embodiment of the present invention, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, and the position of the switching interval, including:

[0014] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the first uplink or the first carrier and within the first time interval after the start boundary of the target uplink time slot of the second uplink or the second carrier.

[0015] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the time domain position of the uplink transmission is ignored within the switching interval after the starting boundary of the target uplink time slot of the first uplink or the first carrier.

[0016] The first time interval is represented as:

[0017] T = TA2 - TA1;

[0018] Where T represents the first time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0019] Furthermore, according to at least one embodiment of the present invention, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, and the position of the switching interval, including:

[0020] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, then the time domain position of the uplink transmission is ignored within the switching interval before the end boundary of the current uplink time slot of the first uplink or the first carrier.

[0021] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval after the start boundary of the target uplink time slot of the first uplink or the first carrier and within the second time interval before the end boundary of the current uplink time slot of the second uplink or the second carrier.

[0022] The second time interval is expressed as:

[0023] T = TA1 - TA2;

[0024] Where T represents the second time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0025] Furthermore, according to at least one embodiment of the present invention, the carrier in which the switching interval is located is the second carrier.

[0026] Furthermore, according to at least one embodiment of the present invention, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, and the position of the switching interval, including:

[0027] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the third time interval before the end boundary of the current uplink time slot of the first uplink or the first carrier and within the switching interval after the start boundary of the target uplink time slot of the second uplink or the second carrier.

[0028] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink or the second carrier.

[0029] The third time interval is represented as:

[0030] T = TA2 - TA1;

[0031] Where T represents the third time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0032] Furthermore, according to at least one embodiment of the present invention, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, and the position of the switching interval, including:

[0033] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, the switching interval after the starting boundary of the target uplink time slot of the second uplink or the second carrier is ignored.

[0034] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink or the second carrier and within the fourth time interval after the start boundary of the target uplink time slot of the first uplink or the first carrier.

[0035] The fourth time interval is represented as:

[0036] T = TA1 - TA2;

[0037] Where T represents the fourth time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0038] Furthermore, according to at least one embodiment of the present invention, the position of the switching interval is not aligned with the time slot boundary of the carrier in which the switching interval is located.

[0039] Furthermore, according to at least one embodiment of the present invention,

[0040] The carrier in which the switching interval is located is the first carrier;

[0041] or,

[0042] The carrier in which the switching interval is located is the carrier corresponding to the first uplink.

[0043] Furthermore, according to at least one embodiment of the present invention, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, and the position of the switching interval, including:

[0044] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the fifth time interval before the end boundary of the current uplink time slot of the first uplink or the first carrier.

[0045] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, and the difference between the first timing advance and the second timing advance is less than the switching interval, then the uplink transmission time domain position is ignored within the sixth time interval after the starting boundary of the target uplink time slot of the first uplink or the first carrier.

[0046] The fifth time interval is represented as:

[0047] T = T1 + (TA2 - TA1);

[0048] Wherein, T represents the second time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0049] The sixth time interval is represented as:

[0050] T = T1 - (TA2 - TA1);

[0051] Wherein, T represents the sixth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0052] Furthermore, according to at least one embodiment of the present invention, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, and the position of the switching interval, including:

[0053] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, and the difference between the first timing advance and the second timing advance is less than the switching interval, then the uplink transmission time domain position is ignored within the seventh time interval before the end boundary of the current uplink time slot of the first uplink or the first carrier.

[0054] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the time domain position of the uplink transmission is ignored within the eighth time interval after the starting boundary of the target uplink time slot of the first uplink or the first carrier.

[0055] The seventh time interval is represented as:

[0056] T = T1 - (TA1 - TA2);

[0057] Wherein, T represents the seventh time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0058] The eighth time interval is represented as:

[0059] T = T1 + (TA1 - TA2);

[0060] Wherein, T represents the eighth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0061] Furthermore, according to at least one embodiment of the present invention,

[0062] The carrier in which the switching interval is located is the second carrier;

[0063] or,

[0064] The carrier in which the switching interval is located is the carrier corresponding to the second uplink.

[0065] Furthermore, according to at least one embodiment of the present invention, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, and the position of the switching interval, including:

[0066] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the ninth time interval after the starting boundary of the target uplink time slot of the second uplink or the second carrier.

[0067] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink or the second carrier.

[0068] The ninth time interval is represented as:

[0069] T = T1 + (TA2 - TA1);

[0070] Wherein, T represents the ninth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0071] Furthermore, according to at least one embodiment of the present invention, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, and the position of the switching interval, including:

[0072] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, then the time domain position of the uplink transmission is ignored within the switching interval after the starting boundary of the target uplink time slot of the second uplink or the second carrier.

[0073] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the tenth time interval before the end boundary of the current uplink time slot of the second uplink or the second carrier.

[0074] The tenth time interval is represented as:

[0075] T = T1 + (TA1 - TA2);

[0076] Wherein, T represents the tenth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0077] At least one embodiment of the present invention provides an uplink transmission device, comprising:

[0078] The processing unit is configured to determine the time-domain location for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, and the location of the switching interval;

[0079] The timing advance difference is determined based on a first timing advance and a second timing advance; the first timing advance is the timing advance of the first uplink or the first carrier, and the second timing advance is the timing advance of the second uplink or the second carrier.

[0080] At least one embodiment of the present invention provides a terminal, comprising:

[0081] Communication interface,

[0082] The processor is configured to determine the time-domain location for ignoring uplink transmissions based on at least one of the following parameters: timing advance difference, and the location of the switching interval;

[0083] The timing advance difference is determined based on a first timing advance and a second timing advance; the first timing advance is the timing advance of the first uplink or the first carrier, and the second timing advance is the timing advance of the second uplink or the second carrier.

[0084] At least one embodiment of the present invention provides a terminal, characterized in that it includes a processor and a memory for storing a computer program capable of running on the processor.

[0085] Wherein, when the processor is running the computer program, it executes the steps of any of the above-described terminal-side methods.

[0086] At least one embodiment of the present invention provides a storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the above methods.

[0087] The uplink transmission method, apparatus, device, and storage medium provided in this invention allow a terminal to determine the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference and the position of the handover interval. The timing advance difference is determined based on a first timing advance and a second timing advance. The first timing advance is the timing advance of a first uplink or a first carrier, and the second timing advance is the timing advance of a second uplink or a second carrier. Using the technical solution provided in this invention, when the uplink or carrier has different timing advances before and after the handover, the terminal determines the time-domain position for ignoring uplink transmission based on the difference in timing advances of the uplink or carrier before and after the handover, and the position of the handover interval, thereby determining the start time of uplink transmission. Attached Figure Description

[0088] Figure 1 This is a schematic diagram of the location of the switching interval in related technologies;

[0089] Figure 2 This is a schematic diagram illustrating the implementation process of the uplink transmission method according to an embodiment of the present invention;

[0090] Figure 3 This is a schematic diagram of how the terminal determines the time-domain position to ignore uplink transmission in an embodiment of the present invention. Figure 1 ;

[0091] Figure 4 This is a schematic diagram of how the terminal determines the time-domain position to ignore uplink transmission in an embodiment of the present invention. Figure 2 ;

[0092] Figure 5 This is a schematic diagram of how the terminal determines the time-domain position to ignore uplink transmission in an embodiment of the present invention. Figure 3 ;

[0093] Figure 6 This is a schematic diagram of how the terminal determines the time-domain position to ignore uplink transmission in an embodiment of the present invention. Figure 4 ;

[0094] Figure 7 This is a schematic diagram of how the terminal determines the time-domain position to ignore uplink transmission in an embodiment of the present invention. Figure 5 ;

[0095] Figure 8 This is a schematic diagram of how the terminal determines the time-domain position to ignore uplink transmission in an embodiment of the present invention. Figure 6 ;

[0096] Figure 9This is a schematic diagram of how the terminal determines the time-domain position to ignore uplink transmission in an embodiment of the present invention. Figure 7 ;

[0097] Figure 10 This is a schematic diagram of how the terminal determines the time-domain position to ignore uplink transmission in an embodiment of the present invention. Figure 8 ;

[0098] Figure 11 This is a schematic diagram of the composition structure of the uplink transmission device according to an embodiment of the present invention;

[0099] Figure 12 This is a schematic diagram of the component structure of the terminal according to an embodiment of the present invention. Detailed Implementation

[0100] Before introducing the technical solutions of the embodiments of the present invention, the relevant technologies will be explained first.

[0101] In related technologies, the network can configure a corresponding handover interval N for terminals with uplink handover capabilities. Tx1-Tx2 Under specified conditions, the terminal ignores uplink transmissions during the handover interval; that is, the terminal will not send uplink data on either carrier before or after the uplink handover. Furthermore, higher-layer signaling indicates the location of the handover interval. Assuming the terminal's uplink transmit link switches back and forth between two carriers (carrier 1 corresponding to uplink transmit link 1 and carrier 2 corresponding to uplink transmit link 2), Figure 1 This is a schematic diagram illustrating the location of the switching interval in related technologies, such as... Figure 1 As shown, there are two configuration methods for the current handover interval: one is to configure the handover interval on carrier 1 corresponding to uplink transmit link 1, and the other is to configure the handover interval on carrier 2 corresponding to uplink transmit link 2. It can be seen that the current terminal capability supports uplink transmission link handover between at most two different uplink frequency bands. Furthermore, the network-configured uplink handover requirement only applies when the two carriers carrying the uplink have the same timing advance, i.e., the two carriers have the same uplink timing amount. The handover interval can be configured by aligning it with the time slot boundaries of the carriers before and after the handover.

[0102] However, with the spectrum refarming of fourth-generation (4G) mobile communication systems, the number of frequency bands available for fifth-generation (5G) mobile communication systems will also increase. To improve spectrum utilization, it is possible to expand the number of frequency bands supporting uplink handover to more than two. The multiple carriers corresponding to uplink handover may be configured with different timing advances. If the timing advances of the carriers before and after handover differ, using the existing handover interval configuration may lead to unnecessary delays or interference in uplink data transmission. Therefore, it is necessary to adjust the position of the uplink handover interval on the carriers and the start time of uplink transmission for the carriers after handover.

[0103] Based on this, in this embodiment of the invention, the terminal determines the time domain position of ignoring uplink transmission according to at least one of the following parameters: timing advance difference and the position of the switching interval; wherein, the timing advance difference is determined based on a first timing advance and a second timing advance; the first timing advance is the timing advance of a first uplink or a first carrier, and the second timing advance is the timing advance of a second uplink or a second carrier.

[0104] Figure 2 This is a schematic diagram illustrating the implementation flow of the uplink transmission method according to an embodiment of the present invention, applied to a terminal, such as... Figure 2 As shown, the method includes step 201:

[0105] Step 201: The terminal determines the time domain position to ignore uplink transmission based on at least one of the following parameters: timing advance difference, switching interval position.

[0106] The timing advance difference is determined based on a first timing advance and a second timing advance; the first timing advance is the timing advance of the first uplink or the first carrier, and the second timing advance is the timing advance of the second uplink or the second carrier.

[0107] It is understood that the first timing advance configured for the first uplink may be different from the second timing advance configured for the second uplink, or the first timing advance configured for the first carrier may be different from the second timing advance configured for the second carrier.

[0108] It is understood that if the first timing advance is greater than the second timing advance, then the timing advance difference is equal to the first timing advance minus the second timing advance. If the first timing advance is less than the second timing advance, then the timing advance difference is equal to the second timing advance minus the first timing advance.

[0109] It is understood that the first uplink can refer to a frequency division duplex (FDD) uplink, which includes multiple uplink time slots (U). The second uplink can refer to a time division duplex (TDD) uplink.

[0110] It is understood that the first carrier may refer to an FDD carrier, which includes multiple uplink slots (U). The second carrier may refer to a TDD carrier, which includes multiple uplink slots (U) and multiple downlink slots (D).

[0111] The implementation can be applied to uplink handover in supplementary uplink (SUL) or carrier aggregation (CA) scenarios.

[0112] In one embodiment, the position of the switching interval is aligned with the time slot boundary of the carrier in which the switching interval is located.

[0113] In one embodiment, the position of the switching interval is not aligned with the time slot boundary of the carrier in which the switching interval is located.

[0114] In one embodiment, the carrier in which the switching interval is located is the first carrier; or, the carrier in which the switching interval is located is the carrier corresponding to the first uplink.

[0115] In one embodiment, the carrier in which the switching interval is located is the second carrier; or, the carrier in which the switching interval is located is the carrier corresponding to the second uplink.

[0116] It is understandable that, taking the carrier as the first carrier as an example, the position of the switching interval is aligned with the time slot boundary of the first carrier in which the switching interval is located, and may include:

[0117] The end position of the switching interval is aligned with the end boundary of the first time slot of the first carrier in which the switching interval is located;

[0118] or,

[0119] The starting position of the switching interval is aligned with the starting boundary of the second time slot of the first carrier in which the switching interval is located;

[0120] There is at least one time slot between the first time slot and the second time slot.

[0121] It is understandable that, taking the second carrier as an example, the position of the handover interval is aligned with the time slot boundary of the second carrier in which the handover interval is located, and may include:

[0122] The end position of the switching interval is aligned with the end boundary of the third time slot of the second carrier in which the switching interval is located;

[0123] or,

[0124] The starting position of the switching interval is aligned with the starting boundary of the fourth time slot of the second carrier in which the switching interval is located;

[0125] Wherein, the third time slot and the fourth time slot are the same time slot, or the third time slot and the fourth time slot are separated by at least one time slot.

[0126] It is understandable that, taking the carrier as the first carrier as an example, the position of the switching interval is not aligned with the time slot boundary of the first carrier in which the switching interval is located, which may include:

[0127] Using the start boundary of the target uplink time slot of the second carrier, the end position of the switching interval is determined from the first carrier;

[0128] or,

[0129] The start position of the handover interval is determined from the first carrier by using the end boundary of the current uplink timeslot of the second carrier.

[0130] It is understandable that, taking the second carrier as an example, the position of the switching interval is not aligned with the time slot boundary of the second carrier in which the switching interval is located, which may include:

[0131] The start position of the handover interval is determined from the second carrier by using the end boundary of the current uplink timeslot of the first carrier;

[0132] or,

[0133] Using the start boundary of the target uplink time slot of the first carrier, the end position of the handover interval is determined from the second carrier.

[0134] It should be noted that, in this embodiment of the invention, the terminal can determine the time domain position for ignoring uplink transmission based on the timing advance difference and the position of the switching interval, combined with the magnitude relationship between the first timing advance and the second timing advance. Alternatively, the time domain position for ignoring uplink transmission can also be determined based on the position of the switching interval, combined with the magnitude relationship between the first timing advance and the second timing advance.

[0135] The process of the terminal determining the time domain position to ignore uplink transmission is described in detail below, depending on the case.

[0136] In the first scenario, the handover interval is located on the first carrier and aligned with the time slot boundary of the first carrier; the first timing advance of the first carrier is less than the second timing advance of the second carrier. Alternatively, the handover interval is located on the carrier corresponding to the first uplink and aligned with the time slot boundary of the carrier corresponding to the first uplink; the first timing advance of the first uplink is less than the second timing advance of the second uplink.

[0137] In one embodiment, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, switching interval position, including:

[0138] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the first uplink or the first carrier and within the first time interval after the start boundary of the target uplink time slot of the second uplink or the second carrier.

[0139] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the time domain position of the uplink transmission is ignored within the switching interval after the starting boundary of the target uplink time slot of the first uplink or the first carrier.

[0140] The first time interval is represented as:

[0141] T = TA2 - TA1;

[0142] Where T represents the first time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0143] It is understandable that in the SUL scenario, after the terminal switches from the first uplink to the second uplink, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the first uplink and within the first time interval after the start boundary of the target uplink time slot of the second uplink.

[0144] After the terminal switches from the second uplink to the first uplink, if the first timing advance is less than the second timing advance, then the time domain position of the uplink transmission is ignored within the switching interval after the starting boundary of the target uplink time slot of the first uplink.

[0145] It is understandable that in the CA scenario, after the terminal switches from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the first carrier and within the first time interval after the start boundary of the target uplink time slot of the second carrier.

[0146] After the terminal switches from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the switching interval after the starting boundary of the target uplink time slot of the first carrier is ignored in the time domain position of the uplink transmission.

[0147] In the second scenario, the switching interval is located on the first carrier and aligned with the time slot boundary of the first carrier; the first timing advance of the first carrier is greater than the second timing advance of the second carrier. Alternatively, the switching interval is located on the carrier corresponding to the first uplink and aligned with the time slot boundary of the carrier corresponding to the first uplink; the first timing advance of the first uplink is greater than the second timing advance of the second uplink.

[0148] In one embodiment, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, switching interval position, including:

[0149] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, then the time domain position of the uplink transmission is ignored within the switching interval before the end boundary of the current uplink time slot of the first uplink or the first carrier.

[0150] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval after the start boundary of the target uplink time slot of the first uplink or the first carrier and within the second time interval before the end boundary of the current uplink time slot of the second uplink or the second carrier.

[0151] The second time interval is expressed as:

[0152] T = TA1 - TA2;

[0153] Where T represents the second time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0154] It is understandable that in the SUL scenario, after the terminal switches from the first uplink to the second uplink, if the first timing advance is greater than the second timing advance, the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the first uplink.

[0155] After the terminal switches from the second uplink to the first uplink, if the first timing advance is greater than the second timing advance, then the second time interval within which the uplink transmission time domain position is ignored is within the switching interval after the start boundary of the target uplink time slot of the first uplink and before the end boundary of the current uplink time slot of the second uplink.

[0156] It is understandable that in the CA scenario, after the terminal switches from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink timeslot of the first carrier.

[0157] After the terminal switches from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the second time interval within which the uplink transmission time domain position is ignored is within the switching interval after the start boundary of the target uplink time slot of the first carrier and before the end boundary of the current uplink time slot of the second carrier.

[0158] In the third scenario, the handover interval is located on the second carrier and aligned with the time slot boundary of the second carrier; the first timing advance of the first carrier is less than the second timing advance of the second carrier. Alternatively, the handover interval is located on the carrier corresponding to the second uplink and aligned with the time slot boundary of the carrier corresponding to the second uplink; the first timing advance of the first uplink is less than the second timing advance of the second uplink.

[0159] In one embodiment, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, switching interval position, including:

[0160] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the third time interval before the end boundary of the current uplink time slot of the first uplink or the first carrier and within the switching interval after the start boundary of the target uplink time slot of the second uplink or the second carrier.

[0161] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink or the second carrier.

[0162] The third time interval is represented as:

[0163] T = TA2 - TA1;

[0164] Where T represents the third time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0165] It is understandable that in the SUL scenario, after the terminal switches from the first uplink to the second uplink, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the third time interval before the end boundary of the current uplink time slot of the first uplink and the switching interval after the start boundary of the target uplink time slot of the second uplink.

[0166] After the terminal switches from the second uplink to the first uplink, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink.

[0167] It is understandable that in the CA scenario, after the terminal switches from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the third time interval before the end boundary of the current uplink time slot of the first carrier and within the switching interval after the start boundary of the target uplink time slot of the second carrier.

[0168] After the terminal switches from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink timeslot of the second carrier.

[0169] In the fourth scenario, the handover interval is located on the second carrier and aligned with the time slot boundary of the second carrier, and the first timing advance of the first carrier is greater than the second timing advance of the second carrier. Alternatively, the handover interval is located on the carrier corresponding to the second uplink and aligned with the time slot boundary of the carrier corresponding to the second uplink, and the first timing advance of the first uplink is greater than the second timing advance of the second uplink.

[0170] In one embodiment, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, switching interval position, including:

[0171] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, the switching interval after the starting boundary of the target uplink time slot of the second uplink or the second carrier is ignored.

[0172] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink or the second carrier and within the fourth time interval after the start boundary of the target uplink time slot of the first uplink or the first carrier.

[0173] The fourth time interval is represented as:

[0174] T = TA1 - TA2;

[0175] Where T represents the fourth time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0176] It is understandable that in the SUL scenario, after the terminal switches from the first uplink to the second uplink, if the first timing advance is greater than the second timing advance, the switching interval after the time domain position of the uplink transmission is the starting boundary of the target uplink time slot of the second uplink is ignored.

[0177] After the terminal switches from the second uplink to the first uplink, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink and within the fourth time interval after the start boundary of the target uplink time slot of the first uplink.

[0178] It is understandable that in the CA scenario, after the terminal switches from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, the switching interval after the starting boundary of the target uplink time slot of the second carrier is ignored.

[0179] After the terminal switches from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink timeslot of the second carrier and within the fourth time interval after the start boundary of the target uplink timeslot of the first carrier.

[0180] In the fifth scenario, the switching interval is located on the first carrier and is not aligned with the time slot boundary of the first carrier; the first timing advance of the first carrier is less than the second timing advance of the second carrier. Alternatively, the switching interval is located on the carrier corresponding to the first uplink and is not aligned with the time slot boundary of the carrier corresponding to the first uplink; the first timing advance of the first uplink is less than the second timing advance of the second uplink.

[0181] In one embodiment, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, switching interval position, including:

[0182] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the fifth time interval before the end boundary of the current uplink time slot of the first uplink or the first carrier.

[0183] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, and the difference between the first timing advance and the second timing advance is less than the switching interval, then the uplink transmission time domain position is ignored within the sixth time interval after the starting boundary of the target uplink time slot of the first uplink or the first carrier.

[0184] The fifth time interval is represented as:

[0185] T = T1 + (TA2 - TA1);

[0186] Wherein, T represents the second time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0187] The sixth time interval is represented as:

[0188] T = T1 - (TA2 - TA1);

[0189] Wherein, T represents the sixth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0190] It is understandable that in the SUL scenario, after the terminal switches from the first uplink to the second uplink, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the fifth time interval before the end boundary of the current uplink time slot of the first uplink.

[0191] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, and the difference between the first timing advance and the second timing advance is less than the switching interval, then the uplink transmission time domain position is ignored within the sixth time interval after the starting boundary of the target uplink time slot of the first uplink.

[0192] It is understandable that in the CA scenario, after the terminal switches from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the fifth time interval before the end boundary of the current uplink timeslot of the first carrier.

[0193] After the terminal switches from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, and the difference between the first timing advance and the second timing advance is less than the switching interval, then the uplink transmission time domain position is ignored within the sixth time interval after the starting boundary of the target uplink timeslot of the first carrier.

[0194] In the sixth scenario, the handover interval is located on the first carrier and is not aligned with the time slot boundary of the first carrier; the first timing advance of the first carrier is greater than the second timing advance of the second carrier. Alternatively, the handover interval is located on the carrier corresponding to the first uplink and is not aligned with the time slot boundary of the carrier corresponding to the first uplink; the first timing advance of the first uplink is greater than the second timing advance of the second uplink.

[0195] In one embodiment, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, switching interval position, including:

[0196] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, and the difference between the first timing advance and the second timing advance is less than the switching interval, then the uplink transmission time domain position is ignored within the seventh time interval before the end boundary of the current uplink time slot of the first uplink or the first carrier.

[0197] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the time domain position of the uplink transmission is ignored within the eighth time interval after the starting boundary of the target uplink time slot of the first uplink or the first carrier.

[0198] The seventh time interval is represented as:

[0199] T = T1 - (TA1 - TA2);

[0200] Wherein, T represents the seventh time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0201] The eighth time interval is represented as:

[0202] T = T1 + (TA1 - TA2);

[0203] Wherein, T represents the eighth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0204] It is understandable that in the SUL scenario, after the terminal switches from the first uplink to the second uplink, if the first timing advance is greater than the second timing advance, and the difference between the first timing advance and the second timing advance is less than the switching interval, then the uplink transmission time domain position is ignored within the seventh time interval before the end boundary of the current uplink time slot of the first uplink.

[0205] After the terminal switches from the second uplink to the first uplink, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the eighth time interval after the starting boundary of the target uplink time slot of the first uplink.

[0206] It is understandable that in the CA scenario, after the terminal switches from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, and the difference between the first timing advance and the second timing advance is less than the switching interval, then the uplink transmission time domain position is ignored within the seventh time interval before the end boundary of the current uplink timeslot of the first carrier.

[0207] After the terminal switches from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the eighth time interval after the starting boundary of the target uplink time slot of the first carrier.

[0208] In the seventh scenario, the handover interval is located on the second carrier and is not aligned with the time slot boundary of the second carrier; the first timing advance of the first carrier is less than the second timing advance of the second carrier. Alternatively, the handover interval is located on the carrier corresponding to the second uplink and is not aligned with the time slot boundary of the carrier corresponding to the second uplink; the first timing advance of the first uplink is less than the second timing advance of the second uplink.

[0209] The terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, switching interval position, including:

[0210] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the ninth time interval after the starting boundary of the target uplink time slot of the second uplink or the second carrier.

[0211] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink or the second carrier.

[0212] The ninth time interval is represented as:

[0213] T = T1 + (TA2 - TA1);

[0214] Wherein, T represents the ninth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0215] It is understandable that in the SUL scenario, after the terminal switches from the first uplink to the second uplink, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the ninth time interval after the starting boundary of the target uplink time slot of the second uplink.

[0216] After the terminal switches from the second uplink to the first uplink, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink.

[0217] It is understandable that in the CA scenario, after the terminal switches from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the ninth time interval after the starting boundary of the target uplink time slot of the second carrier.

[0218] After the terminal switches from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink timeslot of the second carrier.

[0219] In the eighth scenario, the handover interval is located on the second carrier and is not aligned with the time slot boundary of the second carrier; the first timing advance of the first carrier is greater than the second timing advance of the second carrier. Alternatively, the handover interval is located on the carrier corresponding to the second uplink and is not aligned with the time slot boundary of the carrier corresponding to the second uplink; the first timing advance of the first uplink is greater than the second timing advance of the second uplink.

[0220] In one embodiment, the terminal determines the time-domain position for ignoring uplink transmission based on at least one of the following parameters: timing advance difference, switching interval position, including:

[0221] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, then the time domain position of the uplink transmission is ignored within the switching interval after the starting boundary of the target uplink time slot of the second uplink or the second carrier.

[0222] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the tenth time interval before the end boundary of the current uplink time slot of the second uplink or the second carrier.

[0223] The tenth time interval is represented as:

[0224] T = T1 + (TA1 - TA2);

[0225] Wherein, T represents the tenth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0226] It is understandable that in the SUL scenario, after the terminal switches from the first uplink to the second uplink, if the first timing advance is greater than the second timing advance, the uplink transmission time domain position is ignored within the switching interval after the starting boundary of the target uplink time slot of the second uplink.

[0227] After the terminal switches from the second uplink to the first uplink, if the first timing advance is greater than the second timing advance, then the tenth time interval before the end boundary of the current uplink time slot of the second uplink or the time domain position of the uplink transmission is ignored.

[0228] It is understandable that in the CA scenario, after the terminal switches from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, the uplink transmission time domain position is ignored within the switching interval after the starting boundary of the target uplink time slot of the second carrier.

[0229] After the terminal switches from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the tenth time interval before the end boundary of the current uplink timeslot of the second carrier.

[0230] The embodiments of the present invention have the following advantages:

[0231] (1) A method for uplink transmission link switching is proposed. In the scenario where the uplink or carrier has different timing advance before and after the uplink transmission link switching, the terminal determines the time domain position to ignore uplink transmission according to the difference of the timing advance of the uplink or carrier before and after the switching, and the position of the switching interval, so as to determine the time to start transmitting uplink data.

[0232] (2) When different uplinks or carriers that support the switching of the terminal uplink transmission link have different timing advances, the uplink transmission is adapted to the uplink or carrier with good communication conditions to avoid delays or interference caused by timing advance differences during the switching process. Uplink switching and transmission are implemented in the best performance way to avoid reducing transmission performance.

[0233] The specific implementation process of the uplink transmission method of the present invention is described below with reference to specific embodiments.

[0234] Example 1

[0235] Figure 3 This is a schematic diagram illustrating the time-domain location where the terminal determines to ignore uplink transmissions. Figure 3In this configuration, carrier 1 corresponds to either the carrier carrying the first uplink or the first carrier, and carrier 2 corresponds to either the carrier carrying the second uplink or the second carrier. The switching interval is configured on carrier 1 and aligned with the time slot boundary of carrier 1. The first timing advance corresponding to carrier 1 is less than the second timing advance corresponding to carrier 2.

[0236] The process by which a terminal determines the time-domain location to ignore uplink transmissions may include:

[0237] The end position of the first switching interval is aligned with the end boundary of the current uplink time slot of carrier 1. When the terminal switches the uplink transmit link from carrier 1 to carrier 2, the terminal ignores the uplink data transmission within the Tswitch interval before the end boundary of the current uplink time slot of carrier 1, and not after the start boundary of the target uplink time slot of carrier 2. TA Uplink data is transmitted within the interval.

[0238] Here, Tswitch interval is the switching interval.

[0239] Here, △T TA Interval = TA2 - TA1; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0240] The starting position of the second switching interval is aligned with the starting boundary of the target uplink time slot of carrier 1, which will be used for transmission. When the terminal switches the uplink transmit link from carrier 2 to carrier 1, the terminal ignores uplink data transmission within the Tswitch interval after the starting boundary of the target uplink time slot of carrier 1.

[0241] Here, Tswitch interval is the switching interval.

[0242] This example has the following advantages:

[0243] (1) The switching interval is located at a position aligned with the time slot boundary of carrier 1 where the switching interval is located.

[0244] (2) The terminal determines the time interval to ignore uplink transmission based on the difference in timing advance of the carriers before and after the handover, and the position of the handover interval.

[0245] Example 2

[0246] Figure 4 This is a schematic diagram illustrating the time-domain location where the terminal determines to ignore uplink transmissions. Figure 4In this configuration, carrier 1 corresponds to either the carrier carrying the first uplink or the first carrier, and carrier 2 corresponds to either the carrier carrying the second uplink or the second carrier. The switching interval is configured on carrier 1 and aligned with the time slot boundary of carrier 1. The first timing advance corresponding to carrier 1 is greater than the second timing advance corresponding to carrier 2.

[0247] The process by which the terminal determines the time-domain location to ignore uplink transmissions includes:

[0248] The end of the first switching interval is aligned with the end boundary of the current uplink timeslot of carrier 1. When the terminal switches its uplink transmit link from carrier 1 to carrier 2, uplink data transmission within the Tswitch interval before the end boundary of the current uplink timeslot of carrier 1 is ignored. After switching to carrier 2, the terminal needs to wait for ΔT. TA The data is then transmitted using the uplink time slot of carrier 2 after the interval.

[0249] Here, Tswitch interval is the switching interval.

[0250] Here, △T TA Interval = TA1 - TA2; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0251] The starting position of the second switching interval is aligned with the starting boundary of the target uplink time slot of carrier 1, which will be used for transmission. When the terminal switches the uplink transmit link from carrier 2 to carrier 1, the terminal ignores uplink data transmission within the Tswitch interval after the starting boundary of the target uplink time slot of carrier 1, and simultaneously ignores the △T interval before the ending boundary of the current uplink time slot of carrier 2 before the switch. TA Symbols within the interval are not used for uplink transmission.

[0252] Here, Tswitch interval is the switching interval.

[0253] Here, △T TA Interval = TA1 - TA2; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0254] This example has the following advantages:

[0255] (1) The switching interval is located at a position aligned with the time slot boundary of carrier 1 where the switching interval is located.

[0256] (2) The terminal determines the time interval to ignore uplink transmission based on the difference in timing advance of the carriers before and after the handover, and the position of the handover interval.

[0257] Example 3

[0258] Figure 5This is a schematic diagram illustrating the time-domain location where the terminal determines to ignore uplink transmissions. Figure 5 In this configuration, carrier 1 corresponds to either the carrier carrying the first uplink or the first carrier, and carrier 2 corresponds to either the carrier carrying the second uplink or the second carrier. The switching interval is configured on carrier 2 and aligned with the time slot boundary of carrier 2. The first timing advance corresponding to carrier 1 is less than the second timing advance corresponding to carrier 2.

[0259] The process by which the terminal determines the time-domain location to ignore uplink transmissions includes:

[0260] The starting position of the first handover interval is aligned with the starting boundary of the target uplink time slot of carrier 2. When the terminal switches the uplink transmit link from carrier 1 to carrier 2, the terminal ignores the end boundary of the current uplink time slot of carrier 1 before ΔT. TA Data transmission within the interval, and uplink data transmission within the Tswitch interval after the starting boundary of the target uplink time slot of carrier 2.

[0261] Here, Tswitch interval is the switching interval.

[0262] Here, this △T TA Interval = TA2 - TA1; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0263] The end position of the second switching interval is aligned with the end boundary of the current uplink time slot of carrier 2. When the terminal switches the uplink transmit link from carrier 2 to carrier 1, the terminal ignores the data transmission within the Tswitch interval before the end boundary of the current uplink time slot of carrier 2, and the terminal can switch the data transmission within the interval ΔT before the start boundary of the target uplink time slot of carrier 1. TA The uplink data transmission can begin at the current location, without having to wait for the start of the next uplink time slot.

[0264] Here, Tswitch interval is the switching interval.

[0265] Here, △T TA Interval = TA2 - TA1; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0266] This example has the following advantages:

[0267] (1) The switching interval is located at a position aligned with the time slot boundary of the carrier 2 where the switching interval is located.

[0268] (2) The terminal determines the time interval to ignore uplink transmission based on the difference in timing advance of the carriers before and after the handover, and the position of the handover interval.

[0269] Example 4

[0270] Figure 6 This is a schematic diagram illustrating the time-domain location where the terminal determines to ignore uplink transmissions. Figure 6 In this configuration, carrier 1 corresponds to either the carrier carrying the first uplink or the first carrier, and carrier 2 corresponds to either the carrier carrying the second uplink or the second carrier. The switching interval is configured on carrier 2 and aligned with the time slot boundary of carrier 2. The first timing advance corresponding to carrier 1 is greater than the second timing advance corresponding to carrier 2.

[0271] The process by which the terminal determines the time-domain location to ignore uplink transmissions includes:

[0272] The starting position of the first switching interval is aligned with the starting boundary of the target uplink time slot of carrier 2. When the terminal switches the uplink transmit link from carrier 1 to carrier 2, the terminal ignores the uplink data transmission within the Tswitch interval after the starting boundary of the target uplink time slot of carrier 2. Simultaneously, if the uplink time slot resources of carrier 1 that overlap with the downlink time slot of carrier 2 before the switch are available, the first ΔT interval of the next uplink time slot of carrier 1... TA Symbols within the time interval can be used by the terminal to transmit uplink data.

[0273] Here, Tswitch interval is the switching interval.

[0274] Here, △T TA Interval = TA1 - TA2; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0275] The end position of the second switching interval is aligned with the end boundary of the current uplink time slot of carrier 2. When the terminal switches the uplink transmit link from carrier 2 to carrier 1, the terminal ignores the uplink data transmission within the Tswitch interval before the end boundary of the current uplink time slot of carrier 2, and the interval ΔT after the start boundary of the target uplink time slot of carrier 1. TA Uplink data transmission within the system.

[0276] Here, Tswitch interval is the switching interval.

[0277] Here, △T TA Interval = TA1 - TA2; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0278] This example has the following advantages:

[0279] (1) The switching interval is located at a position aligned with the time slot boundary of the carrier 2 where the switching interval is located.

[0280] (2) The terminal determines the time interval to ignore uplink transmission based on the difference in timing advance of the carriers before and after the handover, and the position of the handover interval.

[0281] Example 5

[0282] Figure 7 This is a schematic diagram illustrating the time-domain location where the terminal determines to ignore uplink transmissions. Figure 7 In this configuration, carrier 1 corresponds to either the carrier carrying the first uplink or the first carrier, and carrier 2 corresponds to either the carrier carrying the second uplink or the second carrier. The switching interval is configured on carrier 1 and is not aligned with the time slot boundary of carrier 1. The first timing advance corresponding to carrier 1 is less than the second timing advance corresponding to carrier 2.

[0283] The process by which the terminal determines the time-domain location to ignore uplink transmissions includes:

[0284] Using the start boundary of the target uplink time slot on carrier 2, the end position of the first handover interval is determined from carrier 1. When the terminal switches the uplink transmit link from carrier 1 to carrier 2, the terminal ignores the period before the end boundary of the current uplink time slot on carrier 1 (Tswitch + ΔT). TA Uplink data transmission within the interval

[0285] When switching to carrier 2, the terminal can start transmitting uplink data at the starting boundary of the target uplink time slot of carrier 2, thereby ensuring that the switching interval and the uplink transmission of carrier 2 do not occupy overlapping time domain resources and avoid wasting uplink time and frequency resources of carrier 2.

[0286] Using the end boundary of the current uplink time slot on carrier 2, the start position of the second handover interval is determined from carrier 1. When the terminal's uplink transmit link switches from carrier 2 to carrier 1, the timing advance difference ΔT between the two carriers is used. TA The relationship between the value of the switching interval Tswitch and the time domain position where uplink transmission is ignored is determined:

[0287] If △T TA <Tswitch, then the terminal ignores the start boundary of the uplink time slot of carrier 1 target (Tswitch-ΔT) TA Uplink data transmission within the interval;

[0288] If △T TA >Tswitch, then the terminal can utilize the target uplink time slot before the end boundary (ΔT) of carrier 1. TA Symbol transmission of uplink data within the -Tswitch interval.

[0289] Here, Tswitch interval is the switching interval.

[0290] Here, Tswitch-△T TA =Tswitch-(TA2-TA1); TA1 represents the first timing advance; TA2 represents the second timing advance.

[0291] Here, △T TA -Tswitch = (TA2 - TA1) - Tswitch; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0292] This example has the following advantages:

[0293] (1) The switching interval is located at a position that is not aligned with the time slot boundary of the carrier 1 where the switching interval is located.

[0294] (2) When the switching interval is located in the uplink time slot or the next uplink time slot of carrier 1 that overlaps with the current uplink time slot of carrier 2, the uplink resources of carrier 1 can be fully utilized for uplink transmission, thereby avoiding data transmission delay caused by the early termination of uplink transmission of carrier 2.

[0295] (3) Since the uplink time slot of carrier 2 can be fully utilized for uplink transmission, it is suitable for situations where carrier 2 communication conditions are better.

[0296] Example 6

[0297] Figure 8 This is a schematic diagram illustrating the time-domain location where the terminal determines to ignore uplink transmissions. Figure 8 In this configuration, carrier 1 corresponds to either the carrier carrying the first uplink or the first carrier, and carrier 2 corresponds to either the carrier carrying the second uplink or the second carrier. The switching interval is configured on carrier 1 and is not aligned with the time slot boundary of carrier 1. The first timing advance corresponding to carrier 1 is greater than the second timing advance corresponding to carrier 2.

[0298] The process by which a terminal determines the time-domain location to ignore uplink transmissions may include:

[0299] Using the start boundary of the target uplink time slot on carrier 2, the end position of the first handover interval is determined from carrier 1. When the terminal's uplink transmit link switches from carrier 1 to carrier 2, the timing advance difference ΔT between the two carriers is used. TA The relationship between the value of the switching interval Tswitch and the time domain position where uplink transmission is ignored is determined:

[0300] If △T TA <Tswitch, then the terminal ignores the end boundary of the current uplink time slot of carrier 1 (Tswitch-△T) TA Uplink data transmission within the interval;

[0301] If △T TA If Tswitch >, then the current uplink time slot of carrier 1 can be used entirely for data transmission, and the terminal can utilize the next uplink time slot after the start boundary of carrier 1 (ΔT). TA Symbol transmission of uplink data within the -Tswitch interval.

[0302] Here, Tswitch interval is the switching interval.

[0303] Here, Tswitch-△T TA =Tswitch-(TA1-TA2); TA1 represents the first timing advance; TA2 represents the second timing advance.

[0304] Here, △T TA -Tswitch = (TA1-TA2)-Tswitch; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0305] Here, after switching to carrier 2, the terminal starts transmitting data at the start of the uplink time slot of carrier 2.

[0306] Using the end position of the current uplink time slot on carrier 2, the start position of the second handover interval is determined from carrier 1. When the terminal switches the uplink transmit link from carrier 2 to carrier 1, the terminal ignores the start boundary of the target uplink time slot on carrier 1 (ΔT). TA Uplink data transmission within the +Tswitch interval.

[0307] Here, Tswitch interval is the switching interval.

[0308] Here, △T TA +Tswitch=(TA1-TA2)+Tswitch; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0309] This example has the following advantages:

[0310] (1) The switching interval is located at a position that is not aligned with the time slot boundary of the carrier 1 where the switching interval is located.

[0311] (2) When the switching interval is located in the current uplink time slot or the next uplink time slot of carrier 1, the uplink resources of carrier 1 can be fully utilized for uplink transmission.

[0312] (3) Since the uplink time slot of carrier 2 can be fully utilized for uplink transmission, it is suitable for situations where carrier 2 communication conditions are better.

[0313] Example 7

[0314] Figure 9 This is a schematic diagram illustrating the time-domain location where the terminal determines to ignore uplink transmissions. Figure 9 In this configuration, carrier 1 corresponds to either the carrier carrying the first uplink or the first carrier, and carrier 2 corresponds to either the carrier carrying the second uplink or the second carrier. The switching interval is configured on carrier 2 and is not aligned with the time slot boundary of carrier 2. The first timing advance corresponding to carrier 1 is less than the second timing advance corresponding to carrier 2.

[0315] The process by which the terminal determines the time-domain location to ignore uplink transmissions includes:

[0316] Using the end boundary of the current uplink time slot on carrier 1, the starting position of the first handover interval is determined from carrier 2. When the terminal switches the uplink transmit link from carrier 1 to carrier 2, the terminal ignores the start boundary of the target uplink time slot on carrier 2 (ΔT). TA Data transmission within the +Tswitch interval.

[0317] Here, Tswitch interval is the switching interval.

[0318] Here, △T TA +Tswitch=(TA2-TA1)+Tswitch; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0319] Using the start boundary of the target uplink time slot on carrier 1, the end position of the second handover interval is determined from carrier 2. When the terminal's uplink transmit link switches from carrier 2 to carrier 1, the terminal ignores the data transmission within the Tswitch interval before the end boundary of the current uplink time slot on carrier 2. The terminal can then perform a ΔT interval before the start boundary of the target time slot on carrier 1. TA The uplink data transmission can begin at the current location, without having to wait for the start of the next uplink time slot.

[0320] Here, Tswitch interval is the switching interval.

[0321] Here, △T TA Interval = TA2 - TA1; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0322] This example has the following advantages:

[0323] (1) The switching interval is located at a position that is not aligned with the time slot boundary of the carrier 2 where the switching interval is located.

[0324] (2) When the end position of the second switching interval is aligned with the end boundary of the carrier 2, since the timing advance of the two carriers before and after the switching is different, that is, the boundaries of the uplink time slots used for uplink data transmission are not aligned before and after the switching, a time interval ΔT is formed between the end boundary of carrier 2 before the switching and the start boundary of carrier 1 after the switching. TA Interval, thus, after the switching interval ends, if waiting △T TA If data transmission only begins at the start boundary of the switched carrier 2, it will cause a data transmission delay. In this example, there is no need to wait for ΔT. TA The interval extends to the starting boundary of the switched carrier 2, thus avoiding data transmission delays.

[0325] (3) Since the available uplink time slots of carrier 1 can be further utilized for uplink transmission, it is applicable to situations where carrier 1 has better communication conditions.

[0326] Example 8

[0327] Figure 10 This is a schematic diagram illustrating the time-domain location where the terminal determines to ignore uplink transmissions. Figure 10 In this configuration, carrier 1 corresponds to either the carrier carrying the first uplink or the first carrier, and carrier 2 corresponds to either the carrier carrying the second uplink or the second carrier. The switching interval is configured on carrier 2 and is not aligned with the time slot boundary of carrier 2. The first timing advance corresponding to carrier 1 is greater than the second timing advance corresponding to carrier 2.

[0328] The process by which the terminal determines the time-domain location to ignore uplink transmissions includes:

[0329] Using the end boundary of the current uplink time slot on carrier 1, the starting position of the first handover interval is determined from carrier 2. When the terminal's uplink transmit link switches from carrier 1 to carrier 2, the terminal ignores the data transmission within the Tswitch interval after the start boundary of the target uplink time slot on carrier 2. The terminal can utilize the preceding ΔT interval of the next uplink time slot on carrier 1. TA Symbols transmit uplink data within the time interval.

[0330] Here, Tswitch interval is the switching interval.

[0331] Here, △T TA Interval = TA21 - TA2; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0332] Using the start boundary of the target uplink time slot on carrier 1, the end position of the second handover interval is determined from carrier 2. When the terminal switches the uplink transmit link from carrier 2 to carrier 1, the terminal ignores the end boundary of the current uplink time slot on carrier 2 (ΔT).TA+ Data transmission within the Tswitch interval; after switching, the terminal can directly transmit data at the start boundary of the uplink time slot on carrier 1.

[0333] Here, Tswitch interval is the switching interval.

[0334] Here, △T TA+ Tswitch = (TA1 - TA2) + Tswitch; TA1 represents the first timing advance; TA2 represents the second timing advance.

[0335] This example has the following advantages:

[0336] (1) The switching interval is located at a position that is not aligned with the time slot boundary of the carrier 2 where the switching interval is located.

[0337] (2) When the starting position of the first switching interval is aligned with the starting boundary of the carrier 2, since the timing advance of the two carriers before and after the switching is different, that is, the boundaries of the uplink time slots used for uplink data transmission are not aligned before and after the switching, a time interval ΔT is formed between the ending boundary of carrier 1 before the switching and the starting boundary of carrier 2 after the switching. TA Interval, thus, if starting from the end boundary of carrier 1, waiting for ΔT TA The addition of a switching interval before data transmission begins will increase the data transmission delay. Therefore, in this example, starting from the end boundary of carrier 1, at ΔT... TA Data can be transmitted within the interval, but data transmission is ignored during the switching interval. In other words, you only need to wait for the switching interval, thus avoiding increased data transmission delay.

[0338] (3) Considering that the uplink data transmission starts at the beginning of the uplink time slot of the aligned carrier 1, the resources of carrier 1 are fully utilized to transmit uplink data. Therefore, it is suitable for situations where the communication conditions of carrier 1 are better.

[0339] To implement the uplink transmission method of the present invention, the present invention also provides an uplink transmission device. Figure 11 This is a schematic diagram of the composition structure of the uplink transmission device according to an embodiment of the present invention, as shown below. Figure 11 As shown, the device includes:

[0340] Processing unit 111 is used to determine the time domain position of ignoring uplink transmission based on at least one of the following parameters: timing advance difference, position of switching interval;

[0341] The timing advance difference is determined based on a first timing advance and a second timing advance; the first timing advance is the timing advance of the first uplink or the first carrier, and the second timing advance is the timing advance of the second uplink or the second carrier.

[0342] In one embodiment, the position of the switching interval is aligned with the time slot boundary of the carrier in which the switching interval is located.

[0343] In one embodiment, the carrier in which the switching interval is located is the first carrier; or, the carrier in which the switching interval is located is the carrier corresponding to the first uplink.

[0344] In one embodiment, the processing unit 111 is specifically used for:

[0345] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the first uplink or the first carrier and within the first time interval after the start boundary of the target uplink time slot of the second uplink or the second carrier.

[0346] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the time domain position of the uplink transmission is ignored within the switching interval after the starting boundary of the target uplink time slot of the first uplink or the first carrier.

[0347] The first time interval is represented as:

[0348] T = TA2 - TA1;

[0349] Where T represents the first time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0350] In one embodiment, the processing unit 111 is specifically used for:

[0351] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, then the time domain position of the uplink transmission is ignored within the switching interval before the end boundary of the current uplink time slot of the first uplink or the first carrier.

[0352] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval after the start boundary of the target uplink time slot of the first uplink or the first carrier and within the second time interval before the end boundary of the current uplink time slot of the second uplink or the second carrier.

[0353] The second time interval is expressed as:

[0354] T = TA1 - TA2;

[0355] Where T represents the second time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0356] In one embodiment, the carrier in which the switching interval is located is the second carrier.

[0357] In one embodiment, the processing unit 111 is specifically used for:

[0358] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the third time interval before the end boundary of the current uplink time slot of the first uplink or the first carrier and within the switching interval after the start boundary of the target uplink time slot of the second uplink or the second carrier.

[0359] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink or the second carrier.

[0360] The third time interval is represented as:

[0361] T = TA2 - TA1;

[0362] Where T represents the third time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0363] In one embodiment, the processing unit 111 is specifically used for:

[0364] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, the switching interval after the starting boundary of the target uplink time slot of the second uplink or the second carrier is ignored.

[0365] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink or the second carrier and within the fourth time interval after the start boundary of the target uplink time slot of the first uplink or the first carrier.

[0366] The fourth time interval is represented as:

[0367] T = TA1 - TA2;

[0368] Where T represents the fourth time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0369] In one embodiment, the position of the switching interval is not aligned with the time slot boundary of the carrier in which the switching interval is located.

[0370] In one embodiment, the carrier in which the switching interval is located is the first carrier; or, the carrier in which the switching interval is located is the carrier corresponding to the first uplink.

[0371] In one embodiment, the processing unit 111 is specifically used for:

[0372] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the fifth time interval before the end boundary of the current uplink time slot of the first uplink or the first carrier.

[0373] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, and the difference between the first timing advance and the second timing advance is less than the switching interval, then the uplink transmission time domain position is ignored within the sixth time interval after the starting boundary of the target uplink time slot of the first uplink or the first carrier.

[0374] The fifth time interval is represented as:

[0375] T = T1 + (TA2 - TA1);

[0376] Wherein, T represents the second time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0377] The sixth time interval is represented as:

[0378] T = T1 - (TA2 - TA1);

[0379] Wherein, T represents the sixth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0380] In one embodiment, the processing unit 111 is specifically used for:

[0381] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, and the difference between the first timing advance and the second timing advance is less than the switching interval, then the uplink transmission time domain position is ignored within the seventh time interval before the end boundary of the current uplink time slot of the first uplink or the first carrier.

[0382] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the time domain position of the uplink transmission is ignored within the eighth time interval after the starting boundary of the target uplink time slot of the first uplink or the first carrier.

[0383] The seventh time interval is represented as:

[0384] T = T1 - (TA1 - TA2);

[0385] Wherein, T represents the seventh time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0386] The eighth time interval is represented as:

[0387] T = T1 + (TA1 - TA2);

[0388] Wherein, T represents the eighth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0389] In one embodiment, the carrier in which the switching interval is located is the second carrier; or, the carrier in which the switching interval is located is the carrier corresponding to the second uplink.

[0390] In one embodiment, the processing unit 111 is specifically used for:

[0391] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the ninth time interval after the starting boundary of the target uplink time slot of the second uplink or the second carrier.

[0392] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink or the second carrier.

[0393] The ninth time interval is represented as:

[0394] T = T1 + (TA2 - TA1);

[0395] Wherein, T represents the ninth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0396] In one embodiment, the processing unit 111 is specifically used for:

[0397] After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, then the time domain position of the uplink transmission is ignored within the switching interval after the starting boundary of the target uplink time slot of the second uplink or the second carrier.

[0398] After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the tenth time interval before the end boundary of the current uplink time slot of the second uplink or the second carrier.

[0399] The tenth time interval is represented as:

[0400] T = T1 + (TA1 - TA2);

[0401] Wherein, T represents the tenth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

[0402] In practical applications, the processing unit 111 can be implemented by a processor in the uplink transmission device.

[0403] It should be noted that the uplink transmission device provided in the above embodiments is only illustrated by the division of the above program modules during uplink transmission. In practical applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. In addition, the uplink transmission device and the uplink transmission method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0404] This invention also provides a terminal, such as... Figure 12 As shown, it includes:

[0405] Communication interface 121 enables information exchange with other devices;

[0406] The processor 122, connected to the communication interface 121, is used to execute the methods provided by one or more of the aforementioned terminal-side technical solutions when running a computer program. The computer program is stored in the memory 123.

[0407] It should be noted that the specific processing procedures of the processor 122 and the communication interface 121 are detailed in the method embodiment and will not be repeated here.

[0408] Of course, in practical applications, the various components in terminal 120 are coupled together through bus system 124. It can be understood that bus system 124 is used to implement communication between these components. In addition to a data bus, bus system 124 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 12 The general labeled all buses as Bus System 124.

[0409] The memory 123 in this embodiment is used to store various types of data to support the operation of the terminal 120. Examples of such data include any computer program used to operate on the terminal 120.

[0410] The methods disclosed in the embodiments of this application can be applied to the processor 122, or implemented by the processor 122. The processor 122 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in the processor 122 or by instructions in the form of software. The processor 122 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The processor 122 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly reflected as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in the memory 123. The processor 122 reads the information in the memory 123 and combines its hardware to complete the steps of the aforementioned method.

[0411] In an exemplary embodiment, terminal 120 may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[0412] It is understood that the memory (memory 123) in the embodiments of this application can be volatile memory or non-volatile memory, or both. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); the magnetic surface memory can be disk storage or magnetic tape storage. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[0413] In an exemplary embodiment, the present invention also provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, such as a memory storing a computer program, which can be executed by the processor 122 of the terminal 120 to complete the steps described in the aforementioned terminal-side method. The computer-readable storage medium may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM.

[0414] It should be noted that terms such as "first" and "second" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0415] Furthermore, the technical solutions described in the embodiments of the present invention can be combined arbitrarily without conflict.

[0416] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. An uplink transmission method, characterized in that, The method includes: The terminal determines the time domain position to ignore uplink transmission based on the position of the switching interval and the relationship between the first timing advance and the second timing advance. Wherein, the first timing advance is the timing advance of the first uplink or the first carrier, and the second timing advance is the timing advance of the second uplink or the second carrier.

2. The method according to claim 1, characterized in that, The position of the switching interval is aligned with the time slot boundary of the carrier in which the switching interval is located.

3. The method according to claim 2, characterized in that, The carrier in which the switching interval is located is the first carrier; or, The carrier in which the switching interval is located is the carrier corresponding to the first uplink.

4. The method according to claim 1 or 3, characterized in that, The terminal determines the time domain position for ignoring uplink transmission based on the position of the switching interval and the relationship between the magnitude of the first timing advance and the second timing advance, including: After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the first uplink or the first carrier and within the first time interval after the start boundary of the target uplink time slot of the second uplink or the second carrier. After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the time domain position of the uplink transmission is ignored within the switching interval after the starting boundary of the target uplink time slot of the first uplink or the first carrier. The first time interval is represented as: T = TA2 - TA1; Where T represents the first time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

5. The method according to claim 1 or 3, characterized in that, The terminal determines the time domain position for ignoring uplink transmission based on the position of the switching interval and the relationship between the magnitude of the first timing advance and the second timing advance, including: After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, then the time domain position of the uplink transmission is ignored within the switching interval before the end boundary of the current uplink time slot of the first uplink or the first carrier. After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval after the start boundary of the target uplink time slot of the first uplink or the first carrier and within the second time interval before the end boundary of the current uplink time slot of the second uplink or the second carrier. The second time interval is expressed as: T = TA1 - TA2; Where T represents the second time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

6. The method according to claim 2, characterized in that, The carrier in which the switching interval is located is the second carrier; or, The carrier in which the switching interval is located is the carrier corresponding to the second uplink.

7. The method according to claim 1 or 6, characterized in that, The terminal determines the time domain position for ignoring uplink transmission based on the position of the switching interval and the relationship between the magnitude of the first timing advance and the second timing advance, including: After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, the uplink transmission time domain position is ignored within the third time interval before the end boundary of the current uplink time slot of the first uplink or the first carrier and within the switching interval after the start boundary of the target uplink time slot of the second uplink or the second carrier. After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink or the second carrier. The third time interval is represented as: T = TA2 - TA1; Where T represents the third time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

8. The method according to claim 1 or 6, characterized in that, The terminal determines the time domain position for ignoring uplink transmission based on the position of the switching interval and the relationship between the magnitude of the first timing advance and the second timing advance, including: After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, the switching interval after the starting boundary of the target uplink time slot of the second uplink or the second carrier is ignored. After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink or the second carrier and within the fourth time interval after the start boundary of the target uplink time slot of the first uplink or the first carrier. The fourth time interval is represented as: T = TA1 - TA2; Where T represents the fourth time interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

9. The method according to claim 1, characterized in that, The position of the switching interval is not aligned with the time slot boundary of the carrier in which the switching interval is located.

10. The method according to claim 9, characterized in that, The carrier in which the switching interval is located is the first carrier; or, The carrier in which the switching interval is located is the carrier corresponding to the first uplink.

11. The method according to claim 1 or 10, characterized in that, The terminal determines the time domain position for ignoring uplink transmission based on the position of the switching interval and the relationship between the magnitude of the first timing advance and the second timing advance, including: After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the fifth time interval before the end boundary of the current uplink time slot of the first uplink or the first carrier. After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, and the difference between the first timing advance and the second timing advance is less than the switching interval, then the uplink transmission time domain position is ignored within the sixth time interval after the starting boundary of the target uplink time slot of the first uplink or the first carrier. The fifth time interval is represented as: T = T1 + (TA2 - TA1); Wherein, T represents the fifth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance. The sixth time interval is represented as: T = T1 - (TA2 - TA1); Wherein, T represents the sixth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

12. The method according to claim 1 or 10, characterized in that, The terminal determines the time domain position for ignoring uplink transmission based on the position of the switching interval and the relationship between the magnitude of the first timing advance and the second timing advance, including: After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, and the difference between the first timing advance and the second timing advance is less than the switching interval, then the uplink transmission time domain position is ignored within the seventh time interval before the end boundary of the current uplink time slot of the first uplink or the first carrier. After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the time domain position of the uplink transmission is ignored within the eighth time interval after the starting boundary of the target uplink time slot of the first uplink or the first carrier. The seventh time interval is represented as: T = T1 - (TA1 - TA2); Wherein, T represents the seventh time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance. The eighth time interval is represented as: T = T1 + (TA1 - TA2); Wherein, T represents the eighth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

13. The method according to claim 9, characterized in that, The carrier in which the switching interval is located is the second carrier; or, The carrier in which the switching interval is located is the carrier corresponding to the second uplink.

14. The method according to claim 1 or 13, characterized in that, The terminal determines the time domain position for ignoring uplink transmission based on the position of the switching interval and the relationship between the magnitude of the first timing advance and the second timing advance, including: After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the ninth time interval after the starting boundary of the target uplink time slot of the second uplink or the second carrier. After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is less than the second timing advance, then the uplink transmission time domain position is ignored within the switching interval before the end boundary of the current uplink time slot of the second uplink or the second carrier. The ninth time interval is represented as: T = T1 + (TA2 - TA1); Wherein, T represents the ninth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

15. The method according to claim 1 or 13, characterized in that, The terminal determines the time domain position for ignoring uplink transmission based on the position of the switching interval and the relationship between the magnitude of the first timing advance and the second timing advance, including: After the terminal switches from the first uplink to the second uplink or from the first carrier to the second carrier, if the first timing advance is greater than the second timing advance, then the time domain position of the uplink transmission is ignored within the switching interval after the starting boundary of the target uplink time slot of the second uplink or the second carrier. After the terminal switches from the second uplink to the first uplink or from the second carrier to the first carrier, if the first timing advance is greater than the second timing advance, then the uplink transmission time domain position is ignored within the tenth time interval before the end boundary of the current uplink time slot of the second uplink or the second carrier. The tenth time interval is represented as: T = T1 + (TA1 - TA2); Wherein, T represents the tenth time interval; T1 represents the switching interval; TA1 represents the first timing advance; and TA2 represents the second timing advance.

16. An uplink transmission device, characterized in that, include: The processing unit is used to determine the time domain position to ignore uplink transmission based on the position of the switching interval and the relationship between the magnitude of the first timing advance and the second timing advance. Wherein, the first timing advance is the timing advance of the first uplink or the first carrier, and the second timing advance is the timing advance of the second uplink or the second carrier.

17. A terminal, characterized in that, include: Communication interface, The processor is used to determine the time domain position to ignore uplink transmission based on the position of the switching interval and the relationship between the magnitude of the first timing advance and the second timing advance. Wherein, the first timing advance is the timing advance of the first uplink or the first carrier, and the second timing advance is the timing advance of the second uplink or the second carrier.

18. A terminal, characterized in that, This includes a processor and memory for storing computer programs that can run on the processor. When the processor is used to run the computer program, it performs the steps of the method according to any one of claims 1 to 15.

19. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 15.

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