Wireless communication method, terminal, and network side device

Abstract

The present application relates to the field of communications, and discloses a wireless communication method, a terminal, and a network side device. The wireless communication method in embodiments of the present application comprises: a terminal sends a first uplink reference signal group among at least one uplink reference signal group, wherein the first uplink reference signal group comprises at least one uplink reference signal associated with a plurality of frequency domain units, or the first uplink reference signal group comprises at least one uplink reference signal associated with a plurality of serving cells.

Description

Wireless communication methods, terminals and network-side equipment

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202510191432.3, filed on February 20, 2025, entitled "Wireless Communication Method, Terminal and Network Side Device", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of communication technology, specifically relating to a wireless communication method, terminal, and network-side equipment. Background Technology

[0004] In related technologies, downlink control information (DCI) can trigger a terminal to send an uplink reference signal (e.g., a sounding reference signal (SRS)) associated with a specific frequency domain unit (e.g., a component carrier (CC)). That is, a single DCI can only trigger the terminal to send an uplink reference signal associated with one frequency domain unit.

[0005] For example, the terminal can be triggered to send an SRS associated with the CC indicated by the serving cell indicator field in the DCI through the trigger state indicated by the SRS request field in the Downlink Control Information (DCI).

[0006] If the network needs to trigger uplink reference signals associated with multiple frequency domain units, the network can only trigger the uplink reference signals associated with each frequency domain unit separately through multiple DCIs, and the uplink reference signals associated with each frequency domain unit are transmitted independently, which increases the transmission complexity of the uplink reference signals. Summary of the Invention

[0007] This application provides a wireless communication method, terminal, and network-side device that can reduce the transmission complexity of uplink reference signals.

[0008] In a first aspect, a wireless communication method is provided, executed by a terminal, the method comprising:

[0009] The terminal transmits at least one of the first uplink reference signal groups;

[0010] The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

[0011] Secondly, a wireless communication method is provided, executed by a network-side device, the method comprising:

[0012] The network-side device receives a first uplink reference signal group from at least one uplink reference signal group;

[0013] The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

[0014] Thirdly, a wireless communication device is provided, comprising:

[0015] The transmitting module is used to transmit at least one uplink reference signal group from at least one uplink reference signal group;

[0016] The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

[0017] Fourthly, a wireless communication device is provided, comprising:

[0018] The receiving module is configured to receive a first uplink reference signal group from at least one uplink reference signal group;

[0019] The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

[0020] Fifthly, a wireless communication device is provided, the device being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0021] In a sixth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0022] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to transmit a first uplink reference signal group in at least one uplink reference signal group;

[0023] The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

[0024] Eighthly, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0025] In a ninth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to receive a first uplink reference signal group from at least one uplink reference signal group;

[0026] The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

[0027] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0028] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method as described in the first aspect, and the network-side device can be used to perform the steps of the method as described in the second aspect.

[0029] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0030] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the wireless communication method as described in the first or second aspect.

[0031] In the embodiments of this application, the terminal transmits a first uplink reference signal group from at least one uplink reference signal group. Since the first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain units, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells, uplink reference signals associated with different frequency domain units or uplink reference signals associated with different serving cells can be transmitted together, thereby reducing the transmission complexity of uplink reference signals. Attached Figure Description

[0032] Figure 1 is a schematic diagram of a communication system architecture provided in an embodiment of this application.

[0033] Figure 2 is a schematic diagram of a carrier switching process provided in an embodiment of this application.

[0034] Figure 3 is a schematic flowchart of a wireless communication method provided in an embodiment of this application.

[0035] Figure 4 is a schematic diagram of a transmission restriction type provided in an embodiment of this application.

[0036] Figure 5 is a schematic diagram of a fast switching method provided in an embodiment of this application.

[0037] Figure 6 is a schematic block diagram of a wireless communication device provided in an embodiment of this application.

[0038] Figure 7 is a schematic block diagram of another wireless communication device provided in an embodiment of this application.

[0039] Figure 8 is a schematic block diagram of a communication device provided in an embodiment of this application.

[0040] Figure 9 is a schematic diagram of the hardware structure of a terminal provided in an embodiment of this application.

[0041] Figure 10 is a schematic block diagram of a network-side device provided in an embodiment of this application. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0043] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0044] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as the sender explicitly informing the receiver of specific information, the required operation, or the requested result in the instruction sent. An indirect instruction can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the required operation or requested result based on the judgment result.

[0045] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0046] Figure 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as User Equipment (UE), and can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (WiFi) nodes, etc.Among them, base stations can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), Non-Terrestrial Network (NTN) equipment (such as satellite or high altitude platform stations). The term "base station" can be any suitable term in the field, such as "station" or any other appropriate term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to any specific technical term. It should be noted that the embodiments of this application only use the base station in the NR system as an example for introduction, and do not limit the specific type of base station.

[0047] To facilitate a better understanding of the embodiments of this application, the related technologies are described.

[0048] (1) SRS carrier switching.

[0049] The SRS carrier handover mechanism operates based on the UE's multiple uplink carrier capabilities. In carrier aggregation (CA) scenarios, the UE often has more downlink carriers than uplink carriers, causing some time division duplex (TDD) carriers to be unable to perform uplink transmission. Through SRS carrier handover, the UE can transmit SRS signals on these carriers that cannot directly perform uplink transmission, utilizing the difference between uplink and downlink channels to evaluate downlink channel state information (CSI), thereby optimizing system performance.

[0050] The SRS carrier switching parameters are configured per component carrier (CC). When the CC is used only for transmitting SRS, it is called a PUSCH-less CC.

[0051] (2) Triggering of SRS.

[0052] The SRS request field contained in the Downlink Control Information (DCI) is used to trigger the SRS of the serving cell corresponding to the DCI. For example, the SRS of the serving cell corresponding to DCI 1-1 or DCI 1-2 can be triggered.

[0053] For example, DL scheduling is performed on a serving cell (e.g., a PUSCH-less cell) via downlink (DL) DCI, and the terminal is triggered to send SRS to this serving cell.

[0054] It should be noted that a single DCI can only trigger SRS for one serving cell. Furthermore, SRS cannot be triggered using a UL DCI when transmitted in a Physical Uplink Shared Channel-less (PUSCH-less) cell. For example, SRS cannot be triggered using DCI0-1.

[0055] (3) SRS switching time.

[0056] Based on the UE's capabilities, the switching time of the SRS between any two carriers can be determined, including the switching time between intra-band carriers and the switching time between inter-band carriers.

[0057] Furthermore, for the handover between carriers in the same frequency band within a certain frequency band, the corresponding handover time is a single value; for the handover between carriers in different frequency bands within a certain frequency band group, the corresponding handover time is a single value.

[0058] (3) Transmission interruption caused by SRS carrier switching.

[0059] SRS carrier handover can cause uplink transmission interruptions in other cells. For example, after SRS handover to PUSCH-less cell 2, uplink transmission interruptions will occur in other cells (e.g., cells that share the same radio frequency link resources as PUSCH-less cell 2). The interruption time includes SRS transmission and radio frequency (RF) tuning time.

[0060] The wireless communication method provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0061] Figure 3 is a schematic flowchart of a wireless communication method 200 according to an embodiment of this application.

[0062] As shown in Figure 3, the wireless communication method 200 may include at least some of the following:

[0063] S201, the terminal transmits a first uplink reference signal group from at least one uplink reference signal group; wherein the first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

[0064] For example, the terminal may transmit the first uplink reference signal group according to network instructions.

[0065] For example, the uplink reference signal includes, but is not limited to: uplink demodulation reference signal (DMRS), sounding reference signal (SRS), sensing SRS, phase tracking reference signal (PT-RS), etc. Among them, the uplink DMRS can be used for uplink channel demodulation, the SRS can be used for uplink channel measurement, uplink time-frequency synchronization or phase tracking, and positioning, and the PT-RS can also be used for uplink channel measurement, uplink time-frequency synchronization or phase tracking.

[0066] For example, if the number of the at least one uplink reference signal group is greater than 1, for different uplink reference signal groups in the at least one uplink reference signal group, the uplink reference signals in the different uplink reference signal groups satisfy at least one of the following: different numbers, different associated frequency domain units.

[0067] For example, the frequency domain unit includes at least one of the following: a component carrier (CC) and a bandwidth part (BWP); wherein the plurality of BWPs are associated with one CC, or the plurality of BWPs are associated with multiple CCs. For example, the multiple uplink reference signals may originate from different CCs or BWPs (i.e., one uplink reference signal can be understood as an uplink reference signal transmitted by one CC or BWP). For example, different uplink reference signals among the multiple uplink reference signals may originate from different BWPs, such as different BWPs associated with one CC, or BWPs from different CCs. Alternatively, a frequency domain unit may include at least one of the following: a subband, a subband group / set, a physical resource block (PRB), a PRB group / set, a bandwidth part (BWP), a BWP group / set, a band, a band group / set, a frequency band, a carrier, a carrier group / set, a subcarrier, and a subcarrier group / set. A subband set / PRB set / BWP set / band set / carrier set / subcarrier set can be understood as one or more subbands / PRBs / BWPs / bands / carriers / subcarriers.

[0068] In the embodiments of this application, the terminal transmits a first uplink reference signal group from at least one uplink reference signal group. Since the first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain units, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells, uplink reference signals associated with different frequency domain units or uplink reference signals associated with different serving cells can be transmitted together, thereby reducing the transmission complexity of uplink reference signals.

[0069] In some embodiments, the transmission of the plurality of uplink reference signals is triggered by a DCI, or the plurality of uplink reference signals are activated by a Media Access Control (MAC) Control Element (CE), or the plurality of uplink reference signals correspond to a trigger signaling or an activation signaling.

[0070] For example, the transmission of the plurality of uplink reference signals is triggered by a DCI 1-1 / DCI 1-2 / DCI 0-1 / DCI 0-2.

[0071] For example, the uplink reference signal in each of the at least one uplink reference signal group can be multiple uplink reference signals transmitted in a single transmission. Optionally, a single transmission can be understood as: being triggered by a DCI (or by a field within a DCI), or being activated by a MAC CE (triggered by a field within a MAC CE), or completing the continuous transmission of multiple uplink reference signals in the first uplink reference signal group after a single trigger / activation. Alternatively, the multiple uplink reference signals transmitted in a single transmission have different frequency domain positions and are transmitted continuously in the time domain. The symbol between two time-adjacent uplink reference signals is only used for switching.

[0072] In this embodiment, uplink reference signals associated with multiple frequency domain units or multiple serving cells can be triggered sequentially. Compared with the uplink reference signal associated with only one frequency domain unit or one serving cell being triggered at a time, this not only reduces the signaling overhead of triggering uplink reference signals, but also allows for free combination of uplink reference signals to be triggered, thereby improving the flexibility of triggering uplink reference signals.

[0073] It should be noted that, typically, SRS is triggered via the SRS request field in DCI 1-1, DCI 1-2, DCI 0-1, or DCI 0-2. The CC containing the SRS is consistent with the CC indicated by the serving cell indicator field in that DCI (generally the CC containing the scheduled PDSCH or PUSCH). That is, the terminal can be triggered to send an SRS associated with the CC indicated by the serving cell indicator field in the DCI through the trigger state indicated by the SRS request field in the Downlink Control Information (DCI). In this embodiment, DCI 1-1, DCI 1-2, DCI 0-1, or DCI 0-2 are enhanced to enable one DCI to trigger SRS for multiple CCs.

[0074] In some embodiments, the plurality of frequency domain units includes a first frequency domain unit, which includes at least one of the following: a frequency domain unit without a Physical Uplink Shared Channel (PUSCH-less) (such as a PUSCH-less CC or a PUSCH-less BWP), or a frequency domain unit without a Physical Uplink Control Channel (PUCCH-less) (such as a PUCCH-less CC or a PUCCH-less BWP); or the plurality of serving cells includes a first cell, which includes at least one of the following: a PUSCH-less cell or a PUCCH-less cell.

[0075] For example, each uplink reference signal group in the at least one uplink reference signal group, or the first uplink reference signal group, contains at least one uplink reference signal associated with a PUSCH-less frequency domain unit / PUCCH-less frequency domain unit. Optionally, containing at least one uplink reference signal associated with a PUSCH-less frequency domain unit / PUCCH-less frequency domain unit can be understood as: some uplink reference signals belong to a PUSCH-less frequency domain unit / PUCCH-less frequency domain unit, or all uplink reference signals belong to a PUSCH-less CC / PUCCH-less CC. Alternatively, each uplink reference signal group in the at least one uplink reference signal group, or the first uplink reference signal group, contains at least one uplink reference signal associated with a PUSCH-less cell / PUCCH-less cell. Optionally, it may include at least one uplink reference signal associated with a PUSCH-less cell / PUCCH-less cell, which can be understood as: some uplink reference signals belong to a PUSCH-less cell / PUCCH-less cell, or all uplink reference signals belong to a PUSCH-less cell / PUCCH-less cell.

[0076] In this embodiment, the plurality of frequency domain units includes a first frequency domain unit, which includes at least one of the following: PUSCH-less CC and PUCCH-less CC. This indicates that the first uplink reference signal group may include the first frequency domain unit used only for transmitting uplink reference signals, thereby improving the transmission flexibility of the uplink reference signals. The plurality of serving cells includes a first cell, which includes at least one of the following: PUSCH-less cell and PUCCH-less cell. This indicates that the first uplink reference signal group may include the first cell used only for transmitting uplink reference signals, thereby improving the transmission flexibility of the uplink reference signals.

[0077] In some embodiments, prior to S201, the method 200 further includes:

[0078] The terminal receives first indication information, which is used to trigger or activate a first uplink reference signal in the first uplink reference signal group; wherein, the first indication information is not used to trigger or activate other uplink reference signals in the first uplink reference signal group besides the first uplink reference signal, or the first indication information is also used to trigger or activate other uplink reference signals in the first uplink reference signal group besides the first uplink reference signal. The action of not triggering or activating other uplink reference signals in the first uplink reference signal group besides the first uplink reference signal can be understood as normal behavior.

[0079] For example, the first indication information is used not only to trigger or activate the first uplink reference signal, but also to trigger or activate the other uplink reference signals.

[0080] For example, if the first uplink reference signal is only an uplink reference signal in an uplink reference signal group (e.g., the first uplink reference signal group), then the first indication information is used not only to trigger or activate the first uplink reference signal, but also to trigger or activate the other uplink reference signals in the uplink reference signal group.

[0081] For example, if the first uplink reference signal is one of multiple uplink reference signal groups (e.g., each of the multiple uplink reference signal groups includes the first uplink reference signal group), then the first indication information can be used only to trigger or activate the first uplink reference signal, that is, the first indication information is not used to trigger or activate the other uplink reference signals. Alternatively, the first indication information can be used not only to trigger or activate the first uplink reference signal, but also to trigger or activate other uplink reference signals in an uplink reference signal group that includes the first uplink reference signal. Further, the terminal can determine the first uplink reference signal group from the multiple uplink reference signal groups according to network instructions or rules agreed upon in the protocol, and then trigger or activate other uplink reference signals in the first uplink reference signal group other than the first uplink reference signal. Optionally, the message determining the first uplink reference signal group from the multiple uplink reference signal groups can be in a single DCI or MAC CE along with the message triggering or activating the uplink reference signal.

[0082] In this embodiment, the first indication information can be used to trigger or activate the other uplink reference signals, or it can be used not to trigger or activate the other uplink reference signals, which can improve the triggering flexibility or activation flexibility of the other uplink reference signals.

[0083] In some embodiments, the method 200 further includes:

[0084] The terminal receives a second indication, which indicates that other uplink reference signals in the first uplink reference signal group other than the first uplink reference signal should not be triggered or activated, or the second indication indicates that the other uplink reference signals should be triggered or activated.

[0085] For example, the second indication information is used to indicate that the first indication information is not used to trigger or activate the other uplink reference signal, or the second indication information is used to indicate that the first at least one information is used to trigger or activate the other uplink reference signal. The first indication information is used to trigger or activate the first uplink reference signal.

[0086] For example, when the terminal does not receive the second indication information (or the second indication information is not configured), the first indication information is by default not used to trigger or activate the other uplink reference signals. When the terminal receives the second indication information (or the second indication information is configured), the terminal determines, based on the second indication information, that the first indication information is also used to trigger or activate the other uplink reference signals, or determines that the first indication information is not used to trigger or activate the other uplink reference signals. Alternatively, the second indication information is configured to be disabled, and the first indication information is not used to trigger or activate the other uplink reference signals. When the second indication information is configured to be disabled, the terminal determines, based on the second indication information, that the first indication information is also used to trigger or activate the other uplink reference signals, or determines that the first indication information is not used to trigger or activate the other uplink reference signals.

[0087] Optionally, the second indication information can be indicated in the same message as the first indication information (such as DCI or MAC CE), or it can be indicated in different messages, such as the second indication information being indicated in RRC and the first indication information being indicated in DCI or MAC CE.

[0088] Optionally, the second instruction information is obtained by the terminal before the first instruction information.

[0089] The following explanation uses SRS as the uplink reference signal and CC as the frequency domain unit to illustrate the first indication information and the second indication information.

[0090] Based on a received network indication, the UE triggers or activates an SRS. Further, it triggers or activates other SRS transmissions within the same group as that SRS. For example, the UE receives a DCI, in which an SRS request field is used to trigger an SRS transmission for a CC. Further, it triggers other SRS transmissions within the same group as that SRS.

[0091] Optionally, the network can pre-configure (e.g., via RRC) at least one set of SRSs. One of these SRSs may contain an SRS with a network indication. Optionally, if this set of SRSs contains an SRS with a network indication, other SRSs in that set are also triggered. Optionally, the network can configure an enable flag; if there is no network indication or the network indication is disabled, when an SRS transmission is triggered, only that SRS transmission is triggered; if a network indication is received or the network indication is enabled, when an SRS transmission is triggered, other SRS transmissions in the same group as that SRS are also triggered.

[0092] Optionally, the network can pre-configure (e.g., via RRC) at least one set of SRSs. K sets of SRSs contain network-indicated SRSs, where K > 1. Optionally, a corresponding field can be added to the DCI to indicate one of the K sets of SRSs. Optionally, the size of the added field is related to the maximum number of groups associated with an SRS. Optionally, the network can configure an enable flag; if there is no network indication or the network indication is disabled, when an SRS transmission is triggered, only that SRS transmission is triggered; if there is a network indication or the network indication is enabled, a corresponding field is added to the DCI, and when an SRS transmission is triggered, other SRS transmissions in the same group are also triggered simultaneously.

[0093] Optionally, other SRSs in the same group as this SRS can be understood as: SRSs of other CCs in the same group as this SRS. Optionally, the SRSs in this group are used for antenna switching. The triggering of the SRSs of other CCs in this group can be understood as: the triggering of all SRS resource sets configured for antenna switching in each of the other CCs in this group.

[0094] Optionally, the SRS of other CCs in the same group is triggered, which can be understood as: the SRS of other CCs in the same group is triggered by a trigger state, which is the same as the trigger state indicated by the SRS request field, that is, the CCs in the same group share the same trigger state.

[0095] Optionally, other SRSs in the group share the same transmit power command (TPC) as the SRS indicated by the SRS request field. Alternatively, an additional field can be added to the DCI to indicate the TPC for other SRSs within the SRS group.

[0096] In this embodiment, by using the second indication information to indicate whether the first indication information is used to trigger or activate the other uplink reference signals, the terminal and the network can maintain a consistent understanding of the function of the first indication information, thereby ensuring that the terminal can correctly decode the first indication information.

[0097] In some embodiments, prior to S201, the method 200 further includes:

[0098] The terminal receives the trigger signaling or activation signaling of the first uplink reference signal group.

[0099] For example, the triggering signaling of the first uplink reference signal group is used to trigger all uplink reference signals in the first uplink reference signal group. The activation signaling of the first uplink reference signal group is used to activate all uplink reference signals in the first uplink reference signal group.

[0100] The following explanation uses the upper reference signal SRS and the frequency domain unit CC as an example to illustrate the triggering or activation of the SRS group.

[0101] The UE receives a network indication that signals a set of SRS transmissions. For example, the UE receives a DCI, in which an SRS request field is used to trigger a set of SRS transmissions.

[0102] Optionally, the SRS request field can be reinterpreted. For example, the SRS request field is originally used to indicate the triggering state of an SRS of a CC, used to trigger SRSs within that CC that are associated with the same triggering state. In this embodiment, it can be reinterpreted in the following ways:

[0103] Reinterpretation Method 1: Reinterpretation as SRS Group ID (or CC ID). The SRS Group ID is used to trigger a group of SRSs. For example, the SRS request field is 2 bits, where bit 00 indicates that no SRS is triggered, and bit 01 indicates that the SRS of Group 1 is triggered. Optionally, the SRS in this group is used for antenna switching. If the SRS of this group is triggered, it can be understood that all SRS resource sets configured for antenna switching in each of the other CCs in this group are triggered.

[0104] Reinterpretation Method 2: Still indicates the trigger state, but the scope of the trigger state is expanded from the SRS of one CC to the SRS of multiple CCs (i.e., a group of SRS). Optionally, if the trigger state is 0, then all CCs or CC groups with an associated trigger state of 0 are triggered. Optionally, the multiple CCs affected by the expanded trigger state can be indicated in advance by the network, such as according to RRC, MAC CE, or DCI.

[0105] Optionally, the UE can determine whether the SRS request field is reinterpreted based on the RRC or MAC CE indication.

[0106] In this embodiment, the terminal directly determines to trigger or activate all uplink reference signals in the first uplink reference signal group based on network instructions, which can reduce the triggering complexity or activation complexity of the uplink reference signals in the first uplink reference signal group.

[0107] In some embodiments, prior to S201, the method 200 further includes:

[0108] The terminal receives the first indication information, which is used to trigger or activate the first uplink reference signal and to indicate the activation or transmission of the first uplink reference signal group.

[0109] The following explanation uses the upper-level reference signal SRS and the frequency domain unit CC as an example to illustrate the triggering or activation of the first indication information and the SRS group.

[0110] The UE receives a network indication that indicates the triggering of a single SRS, or a set of SRSs. For example, the UE receives a DCI, in which the SRS request field can be used to indicate the triggering of an SRS for a CC. Further, the DCI may include a specific field to indicate the triggering of a set of SRSs.

[0111] Optionally, a specific field is added to the DCI to indicate the triggering of a set of SRS (CC sets). Optionally, the network can pre-configure (e.g., via RRC) at least one set of SRS (CC sets), with the specific field added to the DCI indicating the triggering of a set of SRS (or a CC set). Optionally, the SRS of the indicated triggering set of SRS (or a CC set) is used for antenna switching. Indicating the triggering of a set of SRS (or a CC set) can be understood as triggering all SRS resources configured for antenna switching in each CC of the indicated triggering set of SRS (or a CC set).

[0112] Optionally, the CC corresponding to the SRS (or CC set) that indicates the trigger may or may not include the CC that indicates the trigger.

[0113] Optionally, the purpose of the SRS in the indicated trigger set (or a CC set) may differ from the purpose of the indicated trigger SRS. For example, the purpose of the SRS in the indicated trigger set (or a CC set) may be antenna switching, while the purpose of the indicated trigger SRS may be codebook, non-codebook, or beam management.

[0114] Optionally, if one of the SRSs (or a CC set) in the triggering set has the same CC as the triggering SRS, then the two SRSs have different uses or different SRS resource sets.

[0115] In this embodiment, the terminal directly determines to trigger or activate all uplink reference signals in the first uplink reference signal group based on network instructions, which can reduce the triggering complexity or activation complexity of the uplink reference signals in the first uplink reference signal group.

[0116] In some embodiments, the method 200 further includes:

[0117] The terminal determines at least one uplink reference signal subgroup based on the at least one uplink reference signal group or the first uplink reference signal group.

[0118] For example, the terminal can switch uplink reference signals among the at least one uplink reference signal subgroup. For instance, after determining the at least one uplink reference signal subgroup, the terminal switches uplink reference signals based on the division of the at least one uplink reference signal subgroup.

[0119] In this embodiment, after the terminal is determined to be the at least one uplink reference signal subgroup, it can perform uplink reference signal switching based on the at least one uplink reference signal subgroup, which helps to improve the uplink reference signal switching efficiency and reduce the uplink reference signal switching signaling overhead.

[0120] In some embodiments, the terminal determines at least one uplink reference signal subgroup based on the at least one uplink reference signal group or the first uplink reference signal group, including at least one of the following:

[0121] 1. The terminals will identify uplink reference signals that share the same radio frequency link resources as an uplink reference signal subgroup.

[0122] Optionally, sharing the same RF link resources can be understood as sharing the same or the same group of RF link resources, or the same group of RF link resources. For example, the terminal supports 8 RF chains for uplink, but the terminal has 16 UL CCs (CC0, CC1, ..., CC15). Assume that one CC transmission occupies one RF chain. At the same time, the terminal can support 8 CC transmissions (e.g., CC 0, 2, 4, 6, 8, 10, 12, 14), with each of the 8 CCs occupying one RF chain, for a total of 8 RF chains. At the next moment, uplink transmission such as SRS needs to be performed on CC1. Among the 8 CCs mentioned above, the transmission of one CC needs to be interrupted to free up its occupied RF chain, and then that RF chain is made available for CC1. For example, the transmission of CC0 is interrupted, and the RF chain originally allocated to CC0 is allocated to CC1. In this case, CC0 and CC1 are understood to share the same RF resources.

[0123] Optionally, the uplink reference signal that shares the same set of RF link resources can be understood as follows: the SRS of a frequency domain unit can have multiple ports, and multiple ports need to be associated with multiple RF links. These multiple RF links can be understood as a set of RF link resources; the SRS of different frequency domain units are all multi-port transmissions, and the number of ports is the same, so they can share the same set of RF resources.

[0124] Optionally, the terminal will define uplink reference signals sharing the same RF link resources as an uplink reference signal subgroup. This can be understood as: uplink reference signals within a subgroup are associated with the same RF link resources, or uplink reference signals within a subgroup are switched from the same RF link resources. Optionally, if uplink reference signals within a subgroup are associated with the same RF link resources, then the uplink reference signals of a subgroup must satisfy at least one of the following:

[0125] a. Uplink reference signals will not collide;

[0126] b. Has consistent priority rules (or collision rules), including at least one of the following:

[0127] An uplink reference signal within a subgroup affects the transmission of at least one CC (e.g., interrupts the uplink transmission of one or more CCs), and the CC(s) affected by other uplink reference signals within the subgroup are the same and have the same effect.

[0128] Within a subgroup, a certain uplink reference signal and a first object can be transmitted simultaneously, and other uplink reference signals within the subgroup can also be transmitted simultaneously with the same object. The first object can be a specific channel or signal.

[0129] Within a subgroup, an uplink reference signal cannot be transmitted simultaneously with a second object (which may be the same as or different from the first object), and other uplink reference signals within the subgroup also cannot be transmitted simultaneously with the same object. The second object can be a specific channel or signal. Optionally, when an uplink reference signal within a subgroup collides with another object, that uplink reference signal is dropped; similarly, other uplink reference signals within the subgroup are also dropped when they collide with the same object.

[0130] All uplink reference signals within a subgroup cause the same scheduling constraints, such as scheduling constraints on the target CC.

[0131] c. The RF switching time associated with the uplink reference signal is the same.

[0132] Optionally, the sharing of the same radio frequency link resources can be understood as at least one of the following:

[0133] The uplink reference signal within a subgroup is determined by the frequency domain switching position of the same RF chain;

[0134] The uplink reference signal within a subgroup is switched from the same RF link;

[0135] Uplink reference signals within a subgroup share the same radio frequency link;

[0136] The uplink reference signal within a subgroup is associated with the same RF link.

[0137] Optionally, sharing the same radio frequency resources is a characteristic of a subgroup. Optionally, the terminal can determine the subgroup in other ways, and further determine the characteristics of the subgroup, such as sharing the same radio frequency resources.

[0138] 2. The terminal will identify uplink reference signals with the same frequency domain unit as an uplink reference signal subgroup.

[0139] Optionally, associating with the same frequency domain units is a characteristic of a subgroup. Optionally, the terminal can determine the subgroup in other ways, and further determine the characteristics of the subgroup, such as associating with the same frequency domain units.

[0140] Optionally, the terminal will identify uplink reference signals that share the same frequency domain unit as an uplink reference signal subgroup. This can be understood as: the uplink reference signals in a subgroup are associated with the same frequency domain unit. For example, the uplink reference signals in a subgroup are associated with the same frequency band, or the uplink reference signals in a subgroup are associated with the same source frequency domain unit.

[0141] Optionally, an uplink reference signal can be associated with a radio frequency unit or a group of radio frequency units.

[0142] Optionally, if the uplink reference signals within a subgroup are associated with the same frequency band, the following two interpretations can be further derived:

[0143] One explanation: If the uplink reference signals within an uplink reference signal subgroup are associated with the same frequency band, it can be assumed that the uplink reference signals within the subgroup have the same RF switching time.

[0144] Another interpretation: If the uplink reference signals within an uplink reference signal subgroup are associated with the same frequency band, then the uplink reference signals within the subgroup are associated with the same RF link resources.

[0145] Optionally, the uplink reference signal of a subgroup is associated with the same source frequency domain cell, which can be understood as: the uplink reference signal of a subgroup is switched from the same frequency domain cell, which can be understood as at least one of the following:

[0146] The uplink reference signals within a subgroup are associated with the same handover from the serving cell index (SwitchFromServCellIndex).

[0147] The uplink reference signals within a subgroup are associated with the same handover from the serving cell index (SwitchFromServCellIndex) and handover from the carrier (SwitchFromCarrier).

[0148] The uplink reference signal within a subgroup is associated with the same or a group of RF link resources, or the uplink reference signal within a subgroup is switched from one or a group of RF link resources.

[0149] It should be understood that if the uplink reference signals within a subgroup are associated with the same serving cell index, or if the uplink reference signals within a subgroup are associated with the same handover from the serving cell index and the handover from the carrier, then the uplink reference signals of the subgroup are associated with the same radio frequency link resource, or the uplink reference signals of the subgroup are switched from a single radio frequency link resource.

[0150] 3. The terminal determines the uplink reference signals that switch from the same source frequency domain unit as an uplink reference signal subgroup.

[0151] Optionally, the uplink reference signal of a subgroup is switched from the same source frequency domain unit, or it can be a characteristic of a subgroup. Optionally, the terminal can determine the subgroup in other ways, and further determine the characteristics of the subgroup, such as the uplink reference signal of the subgroup being switched from the same source frequency domain unit.

[0152] Optionally, the terminal may determine an uplink reference signal subgroup from uplink reference signals switched from the same source frequency domain unit. This can be understood as: the uplink reference signals in a subgroup are switched from the same source frequency domain unit; or, the uplink reference signals in each subgroup are associated with the same source frequency domain unit.

[0153] Optionally, the uplink reference signal of a subgroup is switched from the same frequency domain unit, which can be understood as at least one of the following:

[0154] The uplink reference signals within a subgroup are associated with the same handover from the serving cell index (SwitchFromServCellIndex).

[0155] The uplink reference signals within a subgroup are associated with the same handover from the serving cell index (SwitchFromServCellIndex) and handover from the carrier (SwitchFromCarrier).

[0156] The uplink reference signal within a subgroup is associated with the same RF link resource, or the uplink reference signal within a subgroup is obtained by switching the same RF link resource (such as switching frequency domain positions).

[0157] It should be understood that if the uplink reference signals within a subgroup are associated with the same serving cell index, or if the uplink reference signals within a subgroup are associated with the same handover from the serving cell index and the handover from the carrier, then the uplink reference signals within the subgroup are associated with the same radio frequency link resources, or the uplink reference signals within the subgroup are switched from the same radio frequency link resources.

[0158] 4. The terminal will identify uplink reference signals with the same radio frequency switching time as an uplink reference signal subgroup.

[0159] Optionally, the uplink reference signals of the subgroups are associated with the same RF switching time.

[0160] Optionally, the fact that the uplink reference signals of a subgroup have the same radio frequency handover time is a characteristic of that subgroup. Optionally, the terminal can determine the subgroup in other ways, and further determine the characteristics of the subgroup, such as the fact that the uplink reference signals of the subgroup have the same radio frequency handover time.

[0161] Optionally, the same radio frequency switching time can be understood as including at least one of the following:

[0162] Within a subgroup, any two uplink reference signals are associated with the same radio frequency switching time.

[0163] The RF switching time is the same when switching from other frequency domain units such as CC or BWP to any uplink reference signal within the subgroup; or, the RF switching time is the same when switching from any uplink reference signal within the subgroup to other CC or BWP signals in other frequency domain units.

[0164] The RF switching time is the same when switching from an uplink reference signal in other frequency domain units to any uplink reference signal in the subgroup; or, the RF switching time is the same when switching from any uplink reference signal in the subgroup to an uplink reference signal in other frequency domain units.

[0165] The RF switching time is the same when switching from any uplink reference signal in another subgroup to any uplink reference signal within the subgroup; or, the RF switching time is the same when switching from any uplink reference signal within the subgroup to any uplink reference signal in another subgroup.

[0166] 5. The terminal determines the uplink reference signal subgroup as a group of uplink reference signals whose associated frequency domain units are consecutive frequency domain units belonging to the same frequency domain range.

[0167] Optionally, the frequency domain units associated with the uplink reference signal of a subgroup are consecutive frequency domain units belonging to the same frequency domain range, which is a characteristic of a subgroup. Optionally, the terminal can determine the subgroup in other ways, and further determine the characteristics of the subgroup, such as the associated frequency domain units being consecutive frequency domain units belonging to the same frequency domain range.

[0168] Optionally, the terminal determines the uplink reference signal subgroup as an associated frequency domain unit that belongs to the same frequency domain range and is continuous. This can be understood as: the uplink reference signals in a subgroup are associated with different CCs, but the different CCs belong to the same intra-band continuous CCs. Alternatively, it can be understood as: the uplink reference signals in a subgroup are associated with different BWPs, but the different BWPs belong to the same CC.

[0169] Optionally, the uplink reference signal within a subgroup may be associated with different CCs, but these different CCs belong to intra-band continuous CCs, which can be interpreted in two ways:

[0170] One explanation: If the uplink reference signals within an uplink reference signal subgroup belong to the same frequency band and are continuous CC, it can be assumed that the uplink reference signals within the subgroup are associated with the same RF switching time, or that the uplink reference signals within the subgroup are associated with the same RF link resource.

[0171] Another explanation: If the uplink reference signals within an uplink reference signal subgroup belong to the same frequency band and are consecutive CCs, the uplink reference signals within the subgroup are associated with the same RF link resources.

[0172] Optionally, the uplink reference signal within a subgroup may be associated with different BWPs, but these different BWPs may belong to the same CC. This can be interpreted in two ways:

[0173] One explanation: If the uplink reference signal within a subgroup is associated with different BWPs but the different BWPs belong to the same CC, it can be assumed that the uplink reference signals within a subgroup are associated with the same RF handover time, or that the uplink reference signals within a subgroup are associated with the same RF link resources.

[0174] Another explanation: The uplink reference signal within a subgroup is associated with different BWPs, but the different BWPs belong to the same CC. The uplink reference signal within a subgroup is associated with the same RF link resources.

[0175] 6. The terminal determines the at least one uplink reference signal subgroup according to network instructions.

[0176] For example, the terminal can determine the at least one uplink reference signal subgroup based on network indications. For instance, the network indication may be a set of uplink reference signals or a set of uplink reference signal frequency domain units contained in the subgroup, or a set of corresponding IDs; or, the network indication may be that uplink reference signals or uplink reference signal frequency domain units belonging to a subgroup are associated with the same identifier.

[0177] It should be understood that this application does not limit the specific implementation method used to determine at least one uplink reference signal subgroup. It may use one or more of the above six division methods, or other methods to divide the subgroup.

[0178] Optionally, the division of subgroups can be determined based on at least one of the following: UE capability reporting, network indication, and protocol agreement.

[0179] Optionally, the subgrouping can also be understood as: multiple uplink reference signals having a correlation or linkage.

[0180] For example, the uplink reference signals in the first uplink reference signal group can be determined as multiple subgroups of the same type, or as multiple subgroups of different types. Within each subgroup of different types, the same or different uplink reference signals may be included.

[0181] For example, the terminal will identify uplink reference signals that share the same radio frequency link resources as an uplink reference signal subgroup. At the same time, a subgroup also satisfies other characteristics, such as being associated with the same frequency domain unit, having the same priority, etc.

[0182] For example, the terminal may identify uplink reference signals that share the same radio frequency link resources as one of the multiple subgroups of type 1, identify uplink reference signals associated with related radio frequency switching times as one of the multiple subgroups of type 2, identify uplink reference signals whose associated frequency domain units are consecutive frequency domain units belonging to the same frequency domain range as one of the multiple subgroups of type 3, and so on.

[0183] In this embodiment, when the uplink reference signal is subgrouped based on the associated radio frequency (RF) handover time, the RF handover time associated with the uplink reference signal can be divided, enabling the terminal and the network to align the uplink reference signal handover time, thereby improving the transmission efficiency of the uplink reference signal. Subgrouping the uplink reference signal using RF link resources also ensures clear alignment of the collision rules between the terminal and the network, further improving the transmission efficiency of the uplink reference signal.

[0184] In some embodiments, the uplink reference signal within the uplink reference signal subgroup satisfies at least one of the following:

[0185] 1. The transmission of the uplink reference signal imposes the same type of restriction on the transmission in the target frequency domain unit.

[0186] 2. The uplink reference signals have the same priority.

[0187] Optionally, having the same priority rules is a characteristic of a subgroup. Optionally, the terminal can determine the subgroup in other ways, further determining the characteristics of the subgroup, such as having the same priority rules.

[0188] Among them, the consistent priority rules (or collision rules) include at least one of the following:

[0189] If an uplink reference signal within a subgroup affects the transmission of at least one CC (e.g., interrupts the uplink transmission of other CCs), then the other uplink reference signals within the subgroup affect the same number of CCs(s), and the effects are the same.

[0190] If an uplink reference signal within a subgroup can be transmitted simultaneously with a first object, then other uplink reference signals within the subgroup can also be transmitted simultaneously with the same object. The first object can be a specific channel or signal.

[0191] Within a subgroup, a certain uplink reference signal and a second object (which may be the same as or different from the first object) cannot be transmitted simultaneously, and other uplink reference signals within the group cannot be transmitted simultaneously with the same object. The second object can be a specific channel or signal.

[0192] All uplink reference signals within a subgroup cause the same scheduling constraints, such as causing the same type of constraint (Type 1 or Type 2) for transmissions on the same target frequency domain unit, as described below.

[0193] 3. When the uplink reference signal collides with other signals, the rules for transmitting signals are the same.

[0194] Optionally, having the same rules for transmitting signals is a characteristic of a subgroup. Optionally, the terminal can determine the subgroup in other ways, further determining the characteristics of the subgroup, such as having the same rules for transmitting signals.

[0195] Optionally, when an uplink reference signal within a subgroup collides with another object, that uplink reference signal is dropped; similarly, when other uplink reference signals within the subgroup collide with the same object, those other objects are also dropped.

[0196] 4. The RF switching time associated with the uplink reference signal is the same.

[0197] Optionally, the uplink reference signals within a subgroup have the same RF switching time.

[0198] Optionally, the same radio frequency switching time can be understood as including at least one of the following:

[0199] Within a subgroup, any two uplink reference signals are associated with the same radio frequency switching time.

[0200] The RF switching time is the same when switching from other CCs or BWPs to any uplink reference signal within the subgroup; or, the RF switching time is the same when switching from any uplink reference signal within the subgroup to other CCs or BWPs.

[0201] The RF switching time is the same when switching from any uplink reference signal in another subgroup to any uplink reference signal within the subgroup; or, the RF switching time is the same when switching from any uplink reference signal within the subgroup to any uplink reference signal in another subgroup.

[0202] 5. The uplink reference signal shares the same RF link resources.

[0203] Optionally, sharing the same RF link resources can be understood as sharing the same or the same group of RF link resources, or the same group of RF link resources. For example, the terminal supports 8 RF chains for uplink, but the terminal has 16 UL CCs (CC0, CC1, ..., CC15). Assume that one CC transmission occupies one RF chain. At the same time, the terminal can support 8 CC transmissions (e.g., CC 0, 2, 4, 6, 8, 10, 12, 14), with each of the 8 CCs occupying one RF chain, for a total of 8 RF chains. At the next moment, uplink transmission such as SRS needs to be performed on CC1. Among the 8 CCs mentioned above, the transmission of one CC needs to be interrupted to free up its occupied RF chain, and then that RF chain is made available for CC1. For example, the transmission of CC0 is interrupted, and the RF chain originally allocated to CC0 is allocated to CC1. In this case, CC0 and CC1 are understood to share the same RF resources.

[0204] Optionally, the uplink reference signal that shares the same set of RF link resources can be understood as follows: the SRS of a frequency domain unit can have multiple ports, and multiple ports need to be associated with multiple RF links. These multiple RF links can be understood as a set of RF link resources; the SRS of different frequency domain units are all multi-port transmissions, and the number of ports is the same, so they can share the same set of RF resources.

[0205] Optionally, if the uplink reference signals within a subgroup are associated with the same RF link resources, then the uplink reference signals of a subgroup must satisfy at least one of the following:

[0206] a. Uplink reference signals will not collide;

[0207] b. Has consistent priority rules (or collision rules), including at least one of the following:

[0208] An uplink reference signal within a subgroup affects the transmission of at least one CC (e.g., interrupts the uplink transmission of one or more CCs), and the CC(s) affected by other uplink reference signals within the subgroup are the same and have the same effect.

[0209] Within a subgroup, a certain uplink reference signal and a first object can be transmitted simultaneously, and other uplink reference signals within the subgroup can also be transmitted simultaneously with the same object. The first object can be a specific channel or signal.

[0210] Within a subgroup, an uplink reference signal cannot be transmitted simultaneously with a second object (which may be the same as or different from the first object), and other uplink reference signals within the subgroup also cannot be transmitted simultaneously with the same object. The second object can be a specific channel or signal. Optionally, when an uplink reference signal within a subgroup collides with another object, that uplink reference signal is dropped; similarly, other uplink reference signals within the subgroup are also dropped when they collide with the same object.

[0211] All uplink reference signals within a subgroup cause the same scheduling constraints, such as scheduling constraints on the target CC.

[0212] c. The RF switching time associated with the uplink reference signal is the same.

[0213] Optionally, the sharing of the same radio frequency link resources can be understood as at least one of the following:

[0214] The uplink reference signal within a subgroup is determined by the frequency domain switching position of the same RF chain;

[0215] The uplink reference signal within a subgroup is switched from the same RF link;

[0216] Uplink reference signals within a subgroup share the same radio frequency link;

[0217] The uplink reference signal within a subgroup is associated with the same RF link.

[0218] Optionally, sharing the same radio frequency resources is a characteristic of a subgroup. Optionally, the terminal can determine the subgroup in other ways, and further determine the characteristics of the subgroup, such as sharing the same radio frequency resources.

[0219] 6. The uplink reference signal is associated with the same frequency domain unit.

[0220] Optionally, associating with the same frequency domain units is a characteristic of a subgroup. Optionally, the terminal can determine the subgroup in other ways, and further determine the characteristics of the subgroup, such as associating with the same frequency domain units.

[0221] Optionally, an uplink reference signal can be associated with a radio frequency unit or a group of radio frequency units.

[0222] Optionally, if the uplink reference signals within a subgroup are associated with the same frequency band, the following two interpretations can be further derived:

[0223] One explanation: If the uplink reference signals within an uplink reference signal subgroup are associated with the same frequency band, it can be assumed that the uplink reference signals within the subgroup have the same RF switching time.

[0224] Another interpretation: If the uplink reference signals within an uplink reference signal subgroup are associated with the same frequency band, then the uplink reference signals within the subgroup are associated with the same RF link resources.

[0225] Optionally, the uplink reference signal of a subgroup is associated with the same source frequency domain cell, which can be understood as: the uplink reference signal of a subgroup is switched from the same frequency domain cell, which can be understood as at least one of the following:

[0226] The uplink reference signals within a subgroup are associated with the same handover from the serving cell index (SwitchFromServCellIndex).

[0227] The uplink reference signals within a subgroup are associated with the same handover from the serving cell index (SwitchFromServCellIndex) and handover from the carrier (SwitchFromCarrier).

[0228] The uplink reference signal within a subgroup is associated with the same or a group of RF link resources, or the uplink reference signal within a subgroup is switched from one or a group of RF link resources.

[0229] It should be understood that if the uplink reference signals within a subgroup are associated with the same serving cell index, or if the uplink reference signals within a subgroup are associated with the same handover from the serving cell index and the handover from the carrier, then the uplink reference signals of the subgroup are associated with the same radio frequency link resource, or the uplink reference signals of the subgroup are switched from a single radio frequency link resource.

[0230] 7. The uplink reference signal is associated with the same source frequency domain unit, or the uplink reference signal belongs to the reference signal switched from the same source frequency domain unit.

[0231] Optionally, the uplink reference signal of a subgroup is switched from the same source frequency domain unit, or it can be a characteristic of a subgroup. Optionally, the terminal can determine the subgroup in other ways, and further determine the characteristics of the subgroup, such as the uplink reference signal of the subgroup being switched from the same source frequency domain unit.

[0232] Optionally, the uplink reference signal of a subgroup is switched from the same frequency domain unit, which can be understood as at least one of the following:

[0233] The uplink reference signals within a subgroup are associated with the same handover from the serving cell index (SwitchFromServCellIndex).

[0234] The uplink reference signals within a subgroup are associated with the same handover from the serving cell index (SwitchFromServCellIndex) and handover from the carrier (SwitchFromCarrier).

[0235] The uplink reference signal within a subgroup is associated with the same RF link resource, or the uplink reference signal within a subgroup is obtained by switching the same RF link resource (such as switching frequency domain positions).

[0236] It should be understood that if the uplink reference signals within a subgroup are associated with the same serving cell index, or if the uplink reference signals within a subgroup are associated with the same handover from the serving cell index and the handover from the carrier, then the uplink reference signals within the subgroup are associated with the same radio frequency link resources, or the uplink reference signals within the subgroup are switched from the same radio frequency link resources.

[0237] 8. The frequency domain units associated with the uplink reference signal are those belonging to the same frequency domain range and are continuous.

[0238] Optionally, the frequency domain units associated with the uplink reference signal of a subgroup are consecutive frequency domain units belonging to the same frequency domain range, which is a characteristic of a subgroup. Optionally, the terminal can determine the subgroup in other ways, and further determine the characteristics of the subgroup, such as the associated frequency domain units being consecutive frequency domain units belonging to the same frequency domain range.

[0239] Optionally, the uplink reference signal within a subgroup may be associated with different CCs, but these different CCs belong to intra-band continuous CCs, which can be interpreted in two ways:

[0240] One explanation: If the uplink reference signals within an uplink reference signal subgroup belong to the same frequency band and are continuous CC, it can be assumed that the uplink reference signals within the subgroup are associated with the same RF switching time, or that the uplink reference signals within the subgroup are associated with the same RF link resource.

[0241] Another explanation: If the uplink reference signals within an uplink reference signal subgroup belong to the same frequency band and are consecutive CCs, the uplink reference signals within the subgroup are associated with the same RF link resources.

[0242] Optionally, the uplink reference signal within a subgroup may be associated with different BWPs, but these different BWPs may belong to the same CC. This can be interpreted in two ways:

[0243] One explanation: If the uplink reference signal within a subgroup is associated with different BWPs but the different BWPs belong to the same CC, it can be assumed that the uplink reference signals within a subgroup are associated with the same RF handover time, or that the uplink reference signals within a subgroup are associated with the same RF link resources.

[0244] Another explanation: The uplink reference signal within a subgroup is associated with different BWPs, but the different BWPs belong to the same CC. The uplink reference signal within a subgroup is associated with the same RF link resources.

[0245] In this embodiment, by defining that the uplink reference signals within the uplink reference signal subgroup have the same characteristics, the complexity of transmitting the uplink reference signals can be simplified. Furthermore, when the transmission of the uplink reference signals within the subgroup imposes the same type of restriction on the transmission in the target frequency domain unit, the complexity of network scheduling resources can be reduced. When the uplink reference signals within the subgroup have the same priority, when the uplink reference signals within the subgroup collide with other signals, the uplink reference signals within the subgroup can use the same rules for signal transmission, thereby simplifying the complexity of transmitting the uplink reference signals. When the uplink reference signals within the subgroup collide with other signals, and the rules for signal transmission are the same, the complexity of transmitting the uplink reference signals can be simplified. When the RF switching times associated with the uplink reference signals within the subgroup are the same, the complexity of RF switching can be simplified. When the uplink reference signals within a subgroup share the same RF link resources, are associated with the same frequency domain unit, are associated with the same source frequency domain unit, are switched from the same source frequency domain unit, or belong to the same frequency domain range and are continuous, the complexity of transmitting the uplink reference signal can be simplified.

[0246] In some embodiments, the method 200 further includes:

[0247] The terminal determines the restriction type of the transmission of the second uplink reference signal on the transmission of the target frequency domain unit; wherein the second uplink reference signal belongs to the first uplink reference signal group; the restriction type includes a first type or a second type, the first type refers to restricting the transmission of the target frequency domain unit during the radio frequency switching time associated with the second uplink reference signal, and the second type refers to restricting the transmission of the target frequency domain unit during the radio frequency switching time associated with the second uplink reference signal and during the transmission time of the second uplink reference signal.

[0248] For example, the RF switching time associated with the uplink reference signal includes at least one of the following: the RF switching time between uplink reference signals, and the RF switching time between the uplink reference signal and other transmissions (other uplink transmissions such as PUSCH or PUCCH transmissions, and other downlink transmissions).

[0249] For example, the RF switching time can be understood as the RF retuning time, RF switching time, etc., which includes the switching time from one CC to the CC transmitting the uplink reference signal, or the time to switch from the CC transmitting the uplink reference signal to another CC, or the time to switch from the CC transmitting the uplink reference signal to another CC transmitting the uplink reference signal, etc. Restricting the transmission of the target frequency domain unit can be understood as: interrupting the transmission of the target frequency domain unit (e.g., UL transmission, DL transmission, or UL+DL transmission), affecting the transmission of the target frequency domain unit, or interfering with the transmission of the target frequency domain unit. Optionally, the second uplink reference signal may be the same as or different from the first uplink reference signal.

[0250] For example, the first type can also be described as a first scheduling constraint, and the second type can also be described as a second scheduling constraint.

[0251] For example, the first scheduling constraint is that the RF switching time associated with the uplink reference signal interrupts the transmission of the target CC, while the transmission of the uplink reference signal does not interrupt (or suspend) the transmission of the target CC; the second scheduling constraint is that both the RF switching time associated with the uplink reference signal and the transmission of the uplink reference signal will interrupt the transmission of the target CC (such as uplink transmission).

[0252] For example, the target frequency domain unit is associated with the same cell group as the second uplink reference signal. For instance, they belong to the same cell group, such as the Primary Cell Group (PCG) or the Secondary Cell Group (SCG).

[0253] For example, the target frequency domain unit is associated with the same cell group as the second uplink reference signal.

[0254] For example, the first type refers to a restriction type where the transmission of the target frequency domain unit is restricted during the radio frequency switching time associated with the uplink reference signal, but the transmission time of the uplink reference signal does not restrict the transmission of the target frequency domain unit.

[0255] For example, as shown in Figure 4, assume the UE has idle RF link resources in the UL (Upper Limit) field. These idle RF link resources are generally turned off due to low UL traffic or power-saving requirements. At least some CCs in the PUSCH-less cell are configured to use idle RF link resources. If the UE only enables or activates the RF link resources for CCs used to transmit PUSCH, and keeps idle RF link resources off; when the SRS (Switching over to the PUSCH-less cell corresponding to the idle RF link resources) is initiated, the UE retunes the idle RF link resources and enables the corresponding RF link resources. After the uplink reference signal is handed over, the UE turns off the RF link resources. Thus, during SRS transmission on CCs using idle RF link resources, only the switching time needs to be paused for UL transmission of the target CC. Normal UL transmission of the target CC can still be maintained during the SRS transmission time, reducing interruption time and thus improving user experience, reducing network overhead, and increasing communication efficiency.

[0256] In this embodiment, when the first type is the aforementioned restriction type, the impact of uplink reference signal carrier switching on the transmission of the target frequency domain unit can be reduced, thereby improving communication performance. For example, the interruption time caused by uplink reference signal carrier switching on the transmission of the target frequency domain unit can be reduced, thereby improving user experience, reducing network overhead, and improving communication efficiency.

[0257] In some embodiments, the target frequency domain unit includes at least one of the following:

[0258] 1. A source frequency domain unit, wherein the second uplink reference signal is an uplink reference signal switched from the source frequency domain unit.

[0259] Optionally, the second uplink reference signal is an uplink reference signal switched from the source frequency domain unit. For example, the source frequency domain unit can be a source CC, which can be understood as the second uplink reference signal being switched from the source CC. Optionally, the second uplink reference signal being switched from the source CC can be understood as the CC of the second uplink reference signal being switched from the source CC.

[0260] Optionally, the source CC can be determined by at least one method, such as network indication, UE capability, or protocol agreement.

[0261] In one implementation, for the second uplink reference signal, the network indicates the associated source CC (e.g., based on at least one of the uplink reference signal's switch from serving cell index and switch from carrier).

[0262] Optionally, the source frequency domain unit and the frequency domain unit (second frequency domain unit) where the second uplink reference signal is located share the same radio frequency resources.

[0263] Optionally, the source frequency domain unit can transmit PUSCH or PUCCH.

[0264] 2. An arbitrary frequency domain unit that is different from the second frequency domain unit and is used for uplink transmission.

[0265] Optionally, the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0266] Optionally, the target frequency domain unit and the frequency domain unit associated with the second reference signal are different frequency domain units.

[0267] Optionally, any frequency domain unit different from the second frequency domain unit and used for uplink transmission includes: CC(s) different from the second frequency domain unit and used for uplink transmission.

[0268] 3. Frequency domain units associated with the source frequency domain units.

[0269] Optionally, the second uplink reference signal is an uplink reference signal switched from the source frequency domain unit. For example, the frequency domain unit associated with the source frequency domain unit can be another CC related to the source CC, including at least one of the following:

[0270] At least a portion of the CCs within the same frequency band as the source CC. Optionally, it is further defined as at least one of the following: CC(s) in the same frequency band as the source CC and having the same timing advance group (TAgroup, TAG), CC(s) in the same frequency band as the source CC and being continuous in the frequency domain, and CC(s) sharing the same one or a group of RF link resources with the first CC.

[0271] At least some CCs in different frequency bands from the source CC. Optionally, it is further defined as: CCs(s) in inter-band (inter-band) with the source CC, and potentially affected according to UE capabilities or network indications. Optionally, the UE capabilities are determined based on the SwitchingAffectedBandsListNR of the uplink reference signal. For example: the second uplink reference signal is in band 1, and the source CC is in band 2, belonging to the same band combination. When the UE reports a handover between band 1 and band 2, a list of other affected bands within the band combination is provided.

[0272] Optionally, other CCs related to the source CC can be determined by at least one method, such as network indication, UE capability, or protocol agreement.

[0273] Optionally, the frequency domain unit associated with the source frequency domain unit can transmit PUSCH or PUCCH.

[0274] In one implementation, for the second uplink reference signal, the network indicates the associated source CC (e.g., based on at least one of the uplink reference signal's switch from serving cell index or switch from carrier). Furthermore, other CCs related to the source CC can be further determined after the source CC is determined, based on UE capabilities or protocol agreements.

[0275] 4. A frequency domain unit located within the same frequency domain range as the second frequency domain unit. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0276] Optionally, the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0277] Optionally, the target frequency domain unit and the frequency domain unit associated with the second reference signal are different frequency domain units.

[0278] Optionally, it can be located in the same frequency range as the second frequency unit, which can be understood as: within a frequency range (FR) or within a frequency band.

[0279] Optionally, a frequency domain unit located within the same frequency domain range as the second frequency domain unit can be understood as any CC located in the same FR or frequency band as the second frequency domain unit.

[0280] 5. Frequency domain units that are not in the same frequency domain range as the second frequency domain unit.

[0281] Optionally, the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0282] Optionally, the target frequency domain unit and the frequency domain unit associated with the second reference signal are different frequency domain units.

[0283] Optionally, it can be understood as not being in the same frequency range (FR) as the second frequency unit, or not being in the same frequency band.

[0284] Optionally, a frequency domain unit that is not in the same frequency domain range as the second frequency domain unit can be understood as any CC that is not in the same FR or frequency band as the second frequency domain unit.

[0285] 6. Frequency domain units that belong to the same frequency domain range and are continuous with the second frequency domain unit.

[0286] Optionally, the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0287] Optionally, the target frequency domain unit and the frequency domain unit associated with the second reference signal are different frequency domain units.

[0288] Optionally, frequency domain units that belong to the same frequency domain range and are continuous with the second frequency domain unit include: CC(s) that are in the same frequency band and are continuous with the second frequency domain unit, and CCs that belong to a non-intra-band and are continuous with the second frequency domain unit.

[0289] 7. Frequency domain units that belong to the same frequency domain range as the second frequency domain unit but are not contiguous.

[0290] Optionally, the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0291] Optionally, the target frequency domain unit and the frequency domain unit associated with the second reference signal are different frequency domain units.

[0292] Optionally, frequency domain units that belong to the same frequency domain range as the second frequency domain unit but are not continuous include: CC(s) that are in the same frequency band as the second frequency domain unit but are not continuous in the frequency domain.

[0293] 8. Specific frequency domain units configured in the network. For example, the CC(s) indicated by the network.

[0294] Optionally, the network configures specific frequency domain units. For example, the network configures a set of CC(s) potentially used for uplink reference signal transmission. Optionally, for a set of uplink reference signals (e.g., a first uplink reference signal group), the network configures a set of CC(s) potentially used for uplink reference signal transmission; or, for a subgroup of uplink reference signals (e.g., a first uplink reference signal subgroup), the network configures a set of CC(s) potentially used for uplink reference signal transmission; or, for each uplink reference signal, the network configures a set of CC(s) potentially used for uplink reference signal transmission; or, for all uplink reference signals, the network configures a set of CC(s) used for uplink reference signal transmission.

[0295] In this embodiment, by refining the type of the target frequency domain unit, the terminal can determine the type of transmission restriction imposed by the second uplink reference signal on the finer-grained frequency domain unit. This reduces the impact of carrier switching of the uplink reference signal on the transmission of the finer-grained frequency domain unit, thereby improving communication performance. For example, it can reduce the interruption time caused by carrier switching of the uplink reference signal on the transmission of the finer-grained frequency domain unit, thereby improving user experience, reducing network overhead, and increasing communication efficiency.

[0296] In some embodiments, if the target frequency domain unit includes a source frequency domain unit, the terminal determines the type of restriction on transmission on the target frequency domain unit by the transmission of the second uplink reference signal, including:

[0297] The terminal determines the restriction type based on a first condition; or

[0298] If the first condition is met, the terminal will determine the second type as the restriction type; or

[0299] If the first condition is not met, the terminal, according to network instructions, determines either the first type or the second type as the restriction type; or

[0300] If the first condition is not met, the terminal will determine the first type as the restriction type.

[0301] The first condition includes at least one of the following:

[0302] 1. The second frequency domain unit is located within the same frequency domain as the source frequency domain unit. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal, which is an uplink reference signal switched from the source frequency domain unit. For example, the second uplink reference signal and the source CC are in the same frequency band.

[0303] 2. The second frequency domain unit is located within the same frequency domain as the source frequency domain unit and has the same TAG. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal, which is the uplink reference signal switched from the source frequency domain unit. For example, the second uplink reference signal and the source CC are in the same frequency band and have the same TAG.

[0304] 3. The second frequency domain unit is located within the same frequency domain range as the source frequency domain unit and is frequency-continuous. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal, which is an uplink reference signal switched from the source frequency domain unit. For example, the second uplink reference signal and the source CC are in the same frequency band and are frequency-continuous.

[0305] 4. The second frequency domain unit and the source frequency domain unit are located in the same frequency domain, are continuous in the frequency domain, and have the same TAG. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal, which is the uplink reference signal switched from the source frequency domain unit. For example, the second uplink reference signal and the source CC are in the same frequency band, are continuous in the frequency domain, and have the same TAG.

[0306] 5. The second frequency domain unit shares the same RF link resources as the source frequency domain unit. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal, which is an uplink reference signal switched from the source frequency domain unit. For example, the second uplink reference signal shares the same RF link resources as the source CC.

[0307] In this embodiment, by refining the type of transmission restriction imposed by the second uplink reference signal on the source frequency domain unit, the impact of carrier switching of the uplink reference signal on the transmission of the source frequency domain unit can be reduced, thereby improving communication performance. For example, the interruption time caused by carrier switching of the uplink reference signal on the transmission of the source frequency domain unit can be reduced, thereby improving user experience, reducing network overhead, and improving communication efficiency.

[0308] In some embodiments, if the target frequency domain unit includes frequency domain units other than the source frequency domain unit, the terminal determines the type of restriction on transmission on the target frequency domain unit by the transmission of the second uplink reference signal, including:

[0309] The terminal determines the restriction type of the second uplink reference signal on the source frequency domain unit as the restriction type; or

[0310] The terminal determines the restriction type based on the second condition; or

[0311] If the second condition is met, the terminal will determine the second type as the restriction type; or

[0312] If the second condition is not met, the terminal determines the restriction type of the first type, the second type, or the second uplink reference signal to the source frequency domain unit as the restriction type according to the network instruction.

[0313] The second condition includes at least one of the following:

[0314] 1. The second frequency domain unit and the target frequency domain unit are located within the same frequency domain range. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal. For example, the second uplink reference signal and the target CC are in the same frequency band.

[0315] 2. The second frequency domain unit and the target frequency domain unit are located in the same frequency domain and have the same TAG. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal. For example, the second uplink reference signal and the target CC are in the same frequency band and have the same TAG.

[0316] 3. The second frequency domain unit and the target frequency domain unit are located within the same frequency domain range and are frequency-continuous. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal. For example, the second uplink reference signal and the target CC are in the same frequency band and are frequency-continuous.

[0317] 4. The second frequency domain unit and the target frequency domain unit are located within the same frequency domain, are continuous in the frequency domain, and have the same TAG. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal. For example, the second uplink reference signal and the target CC are in the same frequency band, are continuous in the frequency domain, and have the same TAG.

[0318] 5. The second frequency domain unit shares the same RF link resources as the target frequency domain unit. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal. For example, the second uplink reference signal shares the same RF link resources as the target CC.

[0319] In this embodiment, by refining the terminal's determination of the transmission restriction type of the second uplink reference signal for other frequency domain units, the impact of carrier switching of the uplink reference signal on the transmission of other frequency domain units can be reduced, thereby improving communication performance. For example, the interruption time caused by carrier switching of the uplink reference signal on the transmission of other frequency domain units can be reduced, thereby improving user experience, reducing network overhead, and improving communication efficiency. Furthermore, for a specific frequency domain unit, the terminal directly determines the first type as the restriction type, which reduces the complexity of determining the restriction type.

[0320] In some alternative embodiments, the terminal determines the type of restriction on transmission of the second uplink reference signal on the target frequency domain unit, including:

[0321] If the second uplink reference signal is not associated with a source frequency domain unit, the terminal determines the first type as the restricted type; or, if the source frequency domain unit associated with the second uplink reference signal is a frequency domain unit associated with another uplink reference signal, the terminal determines the first type as the restricted type; or, if the source frequency domain unit associated with the second uplink reference signal is a frequency domain unit associated with another uplink reference signal, and the other uplink reference signal is not associated with a source frequency domain unit, the terminal determines the first type as the restricted type; or, if the second uplink reference signal is not associated with a source frequency domain unit, the terminal determines the first type as the restricted type, and determines the first type as the restricted type for transmission of other uplink reference signals located in the same subgroup as the second uplink reference signal on the target frequency domain unit.

[0322] For example, the second uplink reference signal may not be associated with a source frequency domain unit, or the network may not have a source frequency domain unit configured.

[0323] It is understood that for the second uplink reference signal, or the second uplink reference signal transmitted by a certain frequency domain unit, the closed RF link can be opened during transmission. Therefore, the second uplink reference signal will not be switched from a certain RF link, and thus the uplink transmission of other frequency domain units will not be interrupted during the transmission of the second uplink reference signal.

[0324] For the second uplink reference signal, the terminal determines the first type as the transmission restriction type of the second uplink reference signal on the target frequency domain unit, that is, the RF switching between the second uplink reference signals causes the interruption of the transmission of the target frequency domain unit, while the transmission time of the second uplink reference signal does not cause the interruption of the transmission of the target frequency domain unit. Optionally, for the second uplink reference signal, the terminal can shut down the corresponding RF link after transmission is completed. Optionally, the frequency band in which the second uplink reference signal is located supports flexible uplink transmission.

[0325] Optionally, for at least one uplink reference signal, its associated source frequency domain unit (e.g., according to network configuration) can be the frequency domain unit associated with the second uplink reference signal, or in other words, the at least one uplink reference signal is associated with the second uplink reference signal. Optionally, for the second uplink reference signal, it is not associated with a source frequency domain unit (e.g., not configured), or in other words, the source frequency domain unit is the frequency domain unit in which it resides. Optionally, the at least one uplink reference signal and the second uplink reference signal form a group (e.g., an uplink reference signal subgroup as described above). Optionally, the uplink reference signals within this group impose a first type of transmission restriction on the target frequency domain unit, that is, the transmission of the uplink reference signals within this group does not cause transmission interruption of the target frequency domain unit, but the RF switching time associated with the uplink reference signals within this group causes transmission interruption of the target frequency domain unit.

[0326] In this case, the target frequency domain element includes at least one of the following:

[0327] 1. An arbitrary frequency domain unit that is different from the second frequency domain unit and is used for uplink transmission.

[0328] 2. It is located in the same frequency domain as the second frequency domain unit.

[0329] 3. Frequency domain units that are not in the same frequency domain range as the second frequency domain unit.

[0330] 4. A frequency domain unit that belongs to the same frequency domain range and is continuous with the second frequency domain unit, wherein the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0331] 5. A frequency domain unit that belongs to the same frequency domain range as the second frequency domain unit but is not contiguous, wherein the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0332] 6. Specific frequency domain units in network configuration.

[0333] For example, the second uplink reference signal not being associated with a source frequency domain unit can also be understood as the network not configuring a source frequency domain unit, which includes: the network not configuring a source frequency domain unit for the second uplink reference signal. For example, the network not configuring a source CC can be understood as: for the second uplink reference signal, the network does not indicate that the handover of the uplink reference signal comes from the serving cell index (SwitchFromServCellIndex) or from the carrier (SwitchFromCarrier); or, the fields corresponding to the handover from the serving cell index (SwitchFromServCellIndex) and the handover from the carrier (SwitchFromCarrier) are empty.

[0334] In this embodiment, when the second uplink reference signal is not associated with a source frequency domain unit, refining the terminal's determination of the transmission restriction type of the second uplink reference signal for other frequency domain units can reduce the impact of carrier switching of the uplink reference signal on the transmission of other frequency domain units, thereby improving communication performance. For example, it can reduce the interruption time caused by carrier switching of the uplink reference signal on the transmission of other frequency domain units, thereby improving user experience, reducing network overhead, and improving communication efficiency. Furthermore, for a specific frequency domain unit, the terminal directly determines the first type as the restriction type, which can reduce the complexity of determining the restriction type.

[0335] In some embodiments, the terminal determines the type of restriction on transmission of the second uplink reference signal on the target frequency domain unit, including:

[0336] The terminal determines the first type or the second type as the restriction type according to the network instruction.

[0337] For example, the restriction type is independent of conditions but related to network indications. For instance, the terminal determines the first type or the second type as the restriction type based on network indications. The conditional relationship between the target frequency domain unit and the second uplink reference signal is disregarded; the first type or the second type is determined as the restriction type solely based on network indications. For example, based on network indications, the transmission restriction type caused by the second uplink reference signal to the source CC is determined to be the first type or the second type; furthermore, the transmission restriction types for other CCs related to the source CC are consistent with the transmission restriction type for the source CC.

[0338] For example, for each second reference signal, the network indicates the first type or the second type of the target frequency domain cell; or, for a group of second reference signals (as described above in the subgroup), the network indicates the first type or the second type of the target frequency domain cell caused by the group of second reference signals.

[0339] For example, for each second reference signal, the network indicates a first type or a second type of the second reference signal for each frequency element of the target frequency element; for a set of second reference signals (as described above in the subgroup), the network indicates a first type or a second type of the set of second reference signals for each frequency element of the target frequency element.

[0340] In this embodiment, the terminal determines the first type or the second type as the restriction type according to the network instruction, which can reduce the complexity of determining the restriction type.

[0341] In some embodiments, the terminal determines the type of restriction on transmission of the second uplink reference signal on the target frequency domain unit, including:

[0342] The terminal determines the restriction type based on a third condition; or

[0343] If the third condition is met, the terminal will determine the second type as the restriction type; or

[0344] If the third condition is not met, the terminal, according to network instructions, determines either the first type or the second type as the restriction type; or

[0345] If the third condition is not met, the terminal will determine the first type as the restriction type.

[0346] The third condition includes at least one of the following:

[0347] 1. The second frequency domain unit and the target frequency domain unit are located within the same frequency domain range. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal. For example, the second uplink reference signal and the target CC are in the same frequency band.

[0348] 2. The second frequency domain unit and the target frequency domain unit are located in the same frequency domain and have the same TAG. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal. For example, the second uplink reference signal and the target CC are in the same frequency band and have the same TAG.

[0349] 3. The second frequency domain unit and the target frequency domain unit are located within the same frequency domain range and are frequency-continuous. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal. For example, the second uplink reference signal and the target CC are in the same frequency band and are frequency-continuous.

[0350] 4. The second frequency domain unit and the target frequency domain unit are located within the same frequency domain, are continuous in the frequency domain, and have the same TAG. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal. For example, the second uplink reference signal and the target CC are in the same frequency band, are continuous in the frequency domain, and have the same TAG.

[0351] 5. The second frequency domain unit shares the same RF link resources as the target frequency domain unit. The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal. For example, the second uplink reference signal shares the same RF link resources as the target CC.

[0352] The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal. For example, the second frequency domain unit is a CC, and the third frequency domain unit is a band. Alternatively, both the second and third frequency domain units may be either CC or a band.

[0353] In this embodiment, by refining the type of transmission restriction the second uplink reference signal imposes on the source frequency domain unit or other frequency domain units, the impact of carrier switching of the uplink reference signal on the transmission of the source frequency domain unit or other frequency domain units can be reduced, thereby improving communication performance. For example, the interruption time caused by carrier switching of the uplink reference signal on the transmission of the source frequency domain unit or other frequency domain units can be reduced, thereby improving user experience, reducing network overhead, and improving communication efficiency.

[0354] In some embodiments, the terminal determines the first type or the second type as the restriction type according to network instructions, which can be achieved in the following ways:

[0355] Method 1: Determine whether the second uplink reference signal causes type 1 or type 2 based on higher-level instructions (such as RRC configuration).

[0356] For example, for a second uplink reference signal, the configuration of the second uplink reference signal (such as carrier-switching of the uplink reference signal) includes indication information of either a first type or a second type. For instance, one bit might indicate that the second uplink reference signal causes either a first type or a second type, or one bit might indicate that the second uplink reference signal could potentially cause a first type. If this one bit is not indicated, or if this one bit indicates a second type, then the second uplink reference signal causes a second type.

[0357] Method 2: For the second uplink reference signal, the first type and the second type can be dynamically switched.

[0358] For example: based on instructions from higher management, it is determined that the second uplink reference signal can cause either type one or type two. Further, based on DCI instructions, it is determined whether the second uplink reference signal causes type one or type two.

[0359] For example, for the second uplink reference signal, the configuration of the second uplink reference signal (such as carrier-switching of the uplink reference signal) includes indication information that it can cause either type one or type two, for example, through a 1-bit indication. Furthermore, the DCI explicitly indicates whether the second uplink reference signal causes type one or type two, for example, through a 1-bit indication.

[0360] It should be understood that the terminal's method of determining the restriction type of the second uplink reference signal to the source frequency domain unit as the restriction type according to the network instruction is similar to the terminal's method of determining the first type or the second type as the restriction type according to the network instruction. To avoid repetition, it will not be described again here.

[0361] It should be noted that for uplink reference signals after subgrouping, the types of transmission limitations caused by uplink reference signals within the same subgroup are the same. For example, uplink reference signals within subgroups associated with the same source CC will cause the same type of transmission limitations.

[0362] In some embodiments, before the terminal determines the type of restriction on transmission of the second uplink reference signal on the target frequency domain unit, the method 200 further includes:

[0363] The terminal sends first capability information, which is related to the restriction type.

[0364] In one implementation, the UE reports capabilities per band and per band combination. For a given band, if UL transmission is supported, the first capability information indicates that the band supports UL transmission (e.g., indicating the UL-NR carrier aggregation class (CA-bandwidthClassUL-NR)). Optionally, the band is labeled {DL+UL}. For a given band, if UL transmission is not supported, the first capability information indicates that the band does not support UL transmission (e.g., not indicating the UL-NR carrier aggregation class (CA-bandwidthClassUL-NR)). Optionally, the band may be labeled {DL only}.

[0365] In this embodiment, the terminal sends first capability information. Since the first capability information is related to the restriction type, it can assist the network in resource scheduling. By enriching the information for network resource scheduling, the accuracy of network resource scheduling can be improved.

[0366] In some embodiments, the first capability information is used to indicate at least one of the following:

[0367] The terminal supports uplink transmission on the third frequency domain unit;

[0368] The terminal supports enabling or disabling uplink transmission of the third frequency domain unit;

[0369] The terminal supports uplink transmission of the third frequency domain unit, which can be enabled or disabled by default.

[0370] The second frequency domain unit belongs to or is associated with the third frequency domain unit, and the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0371] For example, the second frequency domain unit is CC, and the third frequency domain unit is a band. Alternatively, both the second and third frequency domain units can be CC or a band.

[0372] For example, the UE reports capabilities per frequency band and per frequency band combination. For a certain frequency band, if UL transmission is supported, the first capability information indicates that the frequency band supports UL transmission (e.g., UL-NR carrier aggregation band class (CA-bandwidthClassUL-NR)). Optionally, the frequency band is labeled {DL+UL}.

[0373] For a given frequency band, whether UL transmission is enabled or disabled is indicated in the first capability information as follows: the frequency band supports flexible UL transmission; the frequency band supports UL transmission and supports both enabling and disabling UL transmission; or the frequency band supports UL transmission but is disabled by default. Optionally, the frequency band can be labeled as {DL+Optional UL}.

[0374] For a given frequency band, if UL transmission is not supported, the first capability information indicates that the frequency band does not support UL transmission (e.g., UL-NR carrier aggregation class (CA-bandwidthClassUL-NR) is not indicated). Optionally, the frequency band can be marked as {DL only}.

[0375] Optionally, for a frequency band that supports flexible UL transmission, UL transmission (or RF link resources) is enabled when the CC transmission of the uplink reference signal is performed on that frequency band, and UL transmission (or RF link resources) is disabled when the transmission of the uplink reference signal is not performed.

[0376] Optionally, for a frequency band that supports flexible UL transmission, the transmission limitation type caused by the transmission of the uplink reference signal in that frequency band can be determined to be Type I.

[0377] In this embodiment, the terminal sends first capability information. The first capability information is used to indicate whether the terminal supports the uplink transmission of the third frequency domain unit to be enabled or disabled, or to indicate whether the terminal supports the uplink transmission of the third frequency domain unit to be enabled or disabled by default. This information can assist the network in resource scheduling. By enriching the information on network resource scheduling, the accuracy of network resource scheduling can be improved.

[0378] In some embodiments, the method 200 further includes:

[0379] The terminal switches uplink reference signals between the at least one uplink reference signal group or multiple third uplink reference signals in the first uplink reference signal group;

[0380] Wherein, the plurality of third uplink reference signals satisfy at least one of the following:

[0381] 1. The switching time between adjacent third uplink reference signals is less than or equal to the first switching time. The first switching time is the switching time between the frequency domain unit used for transmitting PUSCH or PUCCH and the frequency domain unit used for transmitting uplink reference signals.

[0382] 2. The plurality of third uplink reference signals are at least partially configured identically. Having at least partially identical configurations for the plurality of third uplink reference signals reduces restrictions on the configuration of uplink reference signals, thereby reducing UE handover complexity and uplink reference signal handover time. The configuration of the third uplink reference signals includes at least one of the following:

[0383] Subcarrier spacing (SCS);

[0384] Cyclic prefix (CP);

[0385] bandwidth;

[0386] Antenna switching configuration, such as xTyR configuration.

[0387] 3. The time interval between adjacent third uplink reference signals is greater than or equal to the second switching time and less than or equal to the third switching time or a multiple of the third switching time. The second switching time is the switching time between frequency domain units used for transmitting uplink reference signals. The third switching time is determined based on the first switching time. The first switching time is the switching time between a frequency domain unit used for transmitting PUSCH or PUCCH and a frequency domain unit used for transmitting uplink reference signals. For example, the time interval between adjacent third uplink reference signals is greater than or equal to the second switching time and less than or equal to the third switching time or twice the third switching time. In this embodiment, the time interval between adjacent third uplink reference signals being greater than or equal to the second switching time and less than or equal to the third switching time or a multiple of the third switching time can reduce the number of times adjacent third uplink reference signals switch back to the CC for transmitting PUSCH, thereby reducing the switching time of the third uplink reference signals. Optionally, the first switching time and the third switching time are the same. In other words, the adjacent third uplink reference signal switching is a direct switch from uplink reference signal 1 to uplink reference signal 2. Compared with the scheme of switching from the CC used to transmit uplink reference signal 1 to the CC used to transmit PUSCH, and then from the CC of PUSCH to uplink reference signal 2, the switching time can be reduced.

[0388] 4. The frequency domain unit associated with the third uplink reference signal is a PUSCH-less frequency domain unit. For example, the CC corresponding to multiple third uplink reference signals is a PUSCH-less CC.

[0389] 5. The plurality of third uplink reference signals are uplink reference signals switched from the same source frequency domain unit. For example, the plurality of third uplink reference signals are associated with the same source CC.

[0390] 6. The frequency domain units associated with the plurality of third uplink reference signals are located within the same frequency domain range. For example, the plurality of third uplink reference signals are located in the same frequency band or FR.

[0391] 7. The time domain range between the first and last third uplink reference signals lies within the first time domain. For example, the time range between the first and last third uplink reference signals does not exceed one time slot.

[0392] For example, the first switching time is less than the switching time between conventional band pairs, and when the terminal switches uplink reference signals between the at least one uplink reference signal group or multiple third uplink reference signals in the first uplink reference signal group, it does not switch back to the frequency domain unit used for transmitting PUSCH.

[0393] For example, when the terminal switches uplink reference signals between the at least one uplink reference signal group or multiple third uplink reference signals in the first uplink reference signal group, it does not need to first switch from the frequency domain unit used for transmitting uplink reference signals back to the frequency domain unit used for transmitting PUSCH or PUCCH, and then switch from the frequency domain unit used for transmitting PUSCH or PUCCH to the frequency domain unit to which it needs to switch. Instead, it can directly switch between the frequency domain units used for transmitting uplink reference signals.

[0394] As shown in Figure 5, the UE switches from CC1 (the CC transmitting PUSCH / PUCCH) to a specific CC that transmits SRS, and continuously switches between multiple CCs to achieve continuous transmission of SRS across multiple CCs (CC2 / CC3), before switching back to CC1. During the continuous transmission of SRS across multiple CCs, the UE continuously switches from one SRS-transmitting CC to another. The entire continuous SRS carrier handover can be completed within a short time (e.g., one time slot). Compared to switching back to CC1 (the CC transmitting PUSCH / PUCCH) from CC2 and then switching back to CC2, this method achieves fast carrier handover, enabling the network to quickly obtain DL CSI from multiple CCs, thereby improving communication efficiency.

[0395] In this embodiment, for the plurality of third uplink reference signals, since the plurality of third uplink reference signals meet the restriction of direct switching, the terminal switches the uplink reference signal among the plurality of third uplink reference signals. Compared with the scheme of switching back to the frequency domain unit of the transmission PUSCH, in this embodiment, it is not necessary to switch back to the frequency domain unit of the transmission PUSCH, which can realize fast switching of the carrier of the uplink reference signal, thereby improving the carrier switching efficiency and reducing the switching delay.

[0396] In some embodiments, before the terminal performs uplink reference signal switching between the at least one uplink reference signal group or a plurality of third uplink reference signals in the first uplink reference signal group, the method 200 further includes:

[0397] The terminal receives third indication information, which is used to instruct the terminal to switch uplink reference signals among the plurality of third uplink reference signals.

[0398] For example, the third indication information is used to instruct the terminal to perform uplink reference signal switching in the uplink reference signal of the at least one uplink reference signal group or the first uplink reference signal group. For example, the network-side device configures the third indication information for the at least one uplink reference signal group or the first uplink reference signal group.

[0399] Optionally, the third indication information can also be understood as fast handover indication information, third reference signal indication information, or grouping information of third reference signals. After receiving the third indication information, the terminal can determine that the handover time between third reference signals is fast handover, or the handover time of a group of third reference signals is fast handover.

[0400] In this embodiment, the terminal receives third indication information, which is used to instruct the terminal to switch uplink reference signals among the plurality of third uplink reference signals. This enables the network to flexibly instruct the terminal whether to switch uplink reference signals among the plurality of third uplink reference signals, thereby improving the flexibility of uplink reference signal switching.

[0401] In some embodiments, before the terminal performs uplink reference signal switching between the at least one uplink reference signal group or a plurality of third uplink reference signals in the first uplink reference signal group, the method 200 further includes:

[0402] The terminal sends second capability information, which is used to indicate the second handover time.

[0403] For example, the second capability information is reported per frequency band and per frequency band combination. For instance, for any frequency band pair within a frequency band combination, the UE reports the handover time between the uplink reference signals of the two frequency bands. Optionally, the handover time between the uplink reference signals of the two frequency bands is less than a first handover time between the two frequency bands. The first handover time is the handover time between a frequency domain unit used for transmitting PUSCH or PUCCH and a frequency domain unit used for transmitting uplink reference signals.

[0404] In this embodiment, the terminal can assist the network in resource scheduling by reporting the second handover time, and by enriching the information on network resource scheduling, the accuracy of network resource scheduling can be improved.

[0405] In some embodiments, when any third uplink reference signal among the plurality of third uplink reference signals collides with other signals, the plurality of third uplink reference signals have the same priority, or the rules for transmitting the plurality of third uplink reference signals are the same, or the collision rules for the plurality of third uplink reference signals and their associated switching times are determined as a whole, or the plurality of third uplink reference signals are transmitted as a whole or not transmitted as a whole.

[0406] For example, when determining the priority or collision rules of the plurality of third uplink reference signals, the uplink reference signal group to which the plurality of third uplink reference signals belong is determined as a whole. For example, if any uplink reference signal in this group collides with other signals or channels (optionally, including collisions caused by handover times associated with the uplink reference signals), if the uplink reference signal has a lower priority, then all uplink reference signals in this group are discarded; or, if the uplink reference signal has a higher priority, then other signals or channels are discarded. Optionally, the handover times associated with the plurality of third uplink reference signals also apply the same priority or collision rules as the third reference signals. For example, when determining whether this group of uplink reference signals collides with other transmissions (e.g., whether the time domain overlaps), the collision of handover times is considered; or, when discarding all uplink reference signals in this group, the associated handover times are also considered for discarding together. Optionally, a group of uplink reference signals is configured within an uplink time window (UL time window), and the priority or collision rules of the uplink reference signals in this group are determined as a whole based on this uplink time window.

[0407] In this embodiment, when any third uplink reference signal among the plurality of third uplink reference signals collides with other signals, the plurality of third uplink reference signals have the same priority, or the rules for transmitting the plurality of third uplink reference signals are the same. This not only reduces the efficiency of determining the priority or collision rules of the third uplink reference signals, but also improves the efficiency of subgroup division and reduces carrier switching time, since the priority or collision rules can be used for subgroup division and subgroup switching.

[0408] The wireless communication method provided in this application can be executed by a wireless communication device. This application uses an example of a wireless communication device executing a wireless communication method to illustrate the wireless communication device provided in this application.

[0409] This application provides a wireless communication device. As an example, the wireless communication device may be a communication equipment or a component within a communication equipment, such as a chip. The communication equipment may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0410] The wireless communication device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, etc., such as central processing units (CPUs), microprocessors, digital signal processors (DSPs), artificial intelligence (AI) processors, graphics processing units (GPUs), application-specific integrated circuits (ASICs), network processors (NPs), field-programmable gate arrays (FPGAs), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceivers, pins, circuits, buses, radio frequency units, etc.

[0411] Specifically, referring to Figure 6, when the wireless communication device is a terminal or a component within a terminal, the wireless communication device 300 includes:

[0412] Transmitting module 301 is used to transmit at least one uplink reference signal group from at least one uplink reference signal group;

[0413] The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

[0414] In some embodiments, the plurality of frequency domain units includes a first frequency domain unit, the first frequency domain unit including at least one of the following: a PUSCH-less frequency domain unit without physical uplink shared channel component carriers, a PUCCH-less frequency domain unit without physical uplink control channel; or

[0415] The plurality of serving cells includes a first cell, which includes at least one of the following: a cell without a physical uplink shared channel (PUSCH-less) and a cell without a physical uplink control channel (PUCCH-less).

[0416] In some embodiments, the apparatus 300 further includes a first receiving module, which is configured to: Before the transmitting module 301 transmits a first uplink reference signal group in at least one uplink reference signal group, the first receiving module is configured to:

[0417] Receive first indication information, the first indication information being used to trigger or activate the first uplink reference signal in the first uplink reference signal group;

[0418] Wherein, the first uplink reference signal group includes the first uplink reference signal;

[0419] The first indication information is not used to trigger or activate other uplink reference signals in the first uplink reference signal group other than the first uplink reference signal, or the first indication information is also used to trigger or activate other uplink reference signals in the first uplink reference signal group other than the first uplink reference signal.

[0420] In some embodiments, the first receiving module is further configured to:

[0421] Receive second indication information, which is used to indicate that other uplink reference signals in the first uplink reference signal group other than the first uplink reference signal are not triggered or activated, or the second indication information is used to indicate that the other uplink reference signals are triggered or activated.

[0422] In some embodiments, the device 300 further includes:

[0423] The first processing module is configured to determine at least one uplink reference signal subgroup based on the at least one uplink reference signal group or the first uplink reference signal group.

[0424] In some embodiments, the first processing module is specifically used for:

[0425] Uplink reference signals that share the same radio frequency link resources are identified as an uplink reference signal subgroup;

[0426] Uplink reference signals that share the same frequency domain unit are identified as an uplink reference signal subgroup.

[0427] Uplink reference signals that switch from the same source frequency domain unit are identified as an uplink reference signal subgroup;

[0428] Uplink reference signals with the same associated RF switching time are identified as an uplink reference signal subgroup;

[0429] Uplink reference signals whose associated frequency domain units are consecutive frequency domain units belonging to the same frequency domain range are identified as an uplink reference signal subgroup.

[0430] The at least one uplink reference signal subgroup is determined according to network instructions.

[0431] In some embodiments, the uplink reference signal within the uplink reference signal subgroup satisfies at least one of the following:

[0432] The transmission of the uplink reference signal imposes the same type of restriction on the transmission in the target frequency domain unit;

[0433] The uplink reference signals have the same priority;

[0434] When the uplink reference signal collides with other signals, the rules for transmitting the signal are the same;

[0435] The uplink reference signal is associated with the same radio frequency switching time;

[0436] The uplink reference signal shares the same radio frequency link resources;

[0437] The uplink reference signal is associated with the same frequency domain unit;

[0438] The uplink reference signal is associated with the same source frequency domain unit, or the uplink reference signal belongs to the reference signal switched from the same source frequency domain unit;

[0439] The frequency domain units associated with the uplink reference signal are those belonging to the same frequency domain range and are continuous.

[0440] In some embodiments, the device 300 further includes:

[0441] The second processing module is used to determine the type of restriction on the transmission of the second uplink reference signal on the transmission in the target frequency domain unit;

[0442] Wherein, the second uplink reference signal belongs to the first uplink reference signal group;

[0443] The restriction type includes a first type or a second type. The first type refers to restricting the transmission on the target frequency domain unit during the radio frequency switching time associated with the second uplink reference signal, and the second type refers to restricting the transmission on the target frequency domain unit during the radio frequency switching time associated with the second uplink reference signal and the transmission time of the second uplink reference signal.

[0444] In some embodiments, the target frequency domain unit includes at least one of the following:

[0445] The source frequency domain unit, wherein the second uplink reference signal is an uplink reference signal switched from the source frequency domain unit;

[0446] An arbitrary frequency domain unit that is different from the second frequency domain unit and is used for uplink transmission;

[0447] Frequency domain units associated with the source frequency domain units;

[0448] Frequency domain units located within the same frequency domain range as the second frequency domain unit;

[0449] Frequency domain units that are not in the same frequency domain range as the second frequency domain unit;

[0450] Frequency domain units that belong to the same frequency domain range and are continuous with the second frequency domain unit;

[0451] Frequency domain units that belong to the same frequency domain range as the second frequency domain unit but are not contiguous;

[0452] Specific frequency domain units configured in the network;

[0453] The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal, and the target frequency domain unit is different from the second frequency domain unit.

[0454] In some embodiments, if the target frequency domain unit includes a source frequency domain unit, the second processing module is specifically used for:

[0455] Determine the type of restriction based on the first condition; or

[0456] If the first condition is met, the second type is determined as the restriction type; or

[0457] If the first condition is not met, the first type or the second type will be determined as the restriction type according to network instructions; or

[0458] If the first condition is not met, the first type is determined to be the restriction type;

[0459] The first condition includes at least one of the following:

[0460] The second frequency domain unit and the source frequency domain unit are located in the same frequency domain range;

[0461] The second frequency domain unit is located in the same frequency domain as the source frequency domain unit, and the timing advance group TAG is the same;

[0462] The second frequency domain unit and the source frequency domain unit are located in the same frequency domain range and are continuous in the frequency domain;

[0463] The second frequency domain unit is located in the same frequency domain as the source frequency domain unit, the frequency domain is continuous, and the timing advance group TAG is the same;

[0464] The second frequency domain unit shares the same radio frequency link resources as the source frequency domain unit;

[0465] The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0466] In some embodiments, if the target frequency domain unit includes frequency domain units other than the source frequency domain unit, the second processing module is specifically used for:

[0467] The restriction type of the second uplink reference signal on the source frequency domain unit is determined as the restriction type; or

[0468] The type of restriction is determined based on the second condition; or

[0469] If the second condition is met, the second type is determined to be the restriction type; or

[0470] If the second condition is not met, the restriction type of the first type, the second type, or the second uplink reference signal on the source frequency domain unit is determined as the restriction type according to the network instruction;

[0471] The second condition includes at least one of the following:

[0472] The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range;

[0473] The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range and have the same timing advance group TAG;

[0474] The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range and are continuous in the frequency domain;

[0475] The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range, are continuous in the frequency domain, and have the same timing advance group TAG;

[0476] The second frequency domain unit shares the same radio frequency link resources with the target frequency domain unit;

[0477] The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0478] In some embodiments, the second processing module is specifically used for:

[0479] The type of restriction is determined based on the third condition; or

[0480] If the third condition is met, the second type will be determined as the restriction type; or

[0481] If the third condition is not met, the first type or the second type is determined as the restriction type according to network instructions; or

[0482] If the third condition is not met, the first type will be determined as the restriction type;

[0483] The third condition includes at least one of the following:

[0484] The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range;

[0485] The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range and have the same timing advance group TAG;

[0486] The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range and are continuous in the frequency domain;

[0487] The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range, are continuous in the frequency domain, and have the same timing advance group TAG;

[0488] The second frequency domain unit shares the same radio frequency link resources with the target frequency domain unit;

[0489] Wherein, the second uplink reference signal is an uplink reference signal switched from the source frequency domain unit, and the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0490] In some embodiments, the second processing module is specifically used for:

[0491] If the second uplink reference signal is not associated with a source frequency domain unit, the first type is determined as the restriction type; or,

[0492] If the source frequency domain unit associated with the second uplink reference signal is a frequency domain unit associated with another uplink reference signal, then the first type is determined as the restriction type; or,

[0493] If the source frequency domain unit associated with the second uplink reference signal is a frequency domain unit associated with another uplink reference signal, and the other uplink reference signal is not associated with a source frequency domain unit, then the first type is determined as the restriction type; or,

[0494] If the second uplink reference signal is not associated with a source frequency domain unit, the first type is determined as the restriction type, and the first type is determined as the restriction type for the transmission of other uplink reference signals located in the same subgroup as the second uplink reference signal on the target frequency domain unit.

[0495] In some embodiments, before the second processing module determines the restriction type of the transmission of the second uplink reference signal on the transmission in the target frequency domain unit, the transmitting module 301 is further configured to:

[0496] Send first capability information, which is related to the restriction type.

[0497] In some embodiments, the first capability information is used to indicate at least one of the following:

[0498] The terminal supports uplink transmission on the third frequency domain unit;

[0499] The terminal supports enabling or disabling uplink transmission of the third frequency domain unit;

[0500] The terminal supports uplink transmission of the third frequency domain unit, which can be enabled or disabled by default.

[0501] The second frequency domain unit belongs to or is associated with the third frequency domain unit, and the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0502] In some embodiments, the device 300 further includes:

[0503] The third processing module is used to switch uplink reference signals between the at least one uplink reference signal group or multiple third uplink reference signals in the first uplink reference signal group.

[0504] Wherein, the plurality of third uplink reference signals satisfy at least one of the following:

[0505] The switching time between adjacent third uplink reference signals is less than or equal to the first switching time;

[0506] The plurality of third uplink reference signals are at least partially configured the same;

[0507] The time interval between adjacent third uplink reference signals is greater than or equal to the second switching time and less than or equal to the third switching time or a multiple of the third switching time;

[0508] The frequency domain unit associated with the third uplink reference signal is a PUSCH-less frequency domain unit without physical uplink shared channel component carriers;

[0509] The plurality of third uplink reference signals are uplink reference signals switched from the same source frequency domain unit;

[0510] The frequency domain units associated with the multiple third uplink reference signals are located within the same frequency domain range;

[0511] The time domain range between the first third uplink reference signal and the last third uplink reference signal is within the first time domain range;

[0512] Wherein, the first switching time is the switching time between the frequency domain unit used for transmitting the Physical Uplink Shared Channel (PUSCH) or the Physical Uplink Control Channel (PUCCH) and the frequency domain unit used for transmitting the uplink reference signal, and the second switching time is the switching time between the frequency domain units used for transmitting the uplink reference signal.

[0513] The third switching time is determined based on the first switching time.

[0514] In some embodiments, the apparatus 300 further includes a second receiving module, wherein before the third processing module performs uplink reference signal switching between the at least one uplink reference signal group or a plurality of third uplink reference signals in the first uplink reference signal group, the second receiving module is configured to:

[0515] The terminal receives a third instruction, which is used to instruct the terminal to switch uplink reference signals among the plurality of third uplink reference signals.

[0516] In some embodiments, before the third processing module performs uplink reference signal switching between the at least one uplink reference signal group or a plurality of third uplink reference signals in the first uplink reference signal group, the transmitting module 301 is further configured to;

[0517] Send second capability information, which is used to indicate the second switching time.

[0518] In some embodiments, when any third uplink reference signal among the plurality of third uplink reference signals collides with other signals, the plurality of third uplink reference signals have the same priority, or the rules for transmitting the plurality of third uplink reference signals are the same, or the plurality of third uplink reference signals are transmitted as a whole or not transmitted as a whole.

[0519] Referring to Figure 7, when the wireless communication device is a network-side device or a component within a network-side device, the wireless communication device 400 includes:

[0520] Receiver module 401 is configured to receive a first uplink reference signal group from at least one uplink reference signal group;

[0521] The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

[0522] In some embodiments, the transmission of the plurality of uplink reference signals is triggered by a downlink control information (DCI), or

[0523] The multiple uplink reference signals are activated by a Media Access Control (MAC) element CE, or

[0524] The multiple uplink reference signals correspond to a trigger signaling or an activation signaling.

[0525] In some embodiments, the plurality of frequency domain units includes a first frequency domain unit, the first frequency domain unit including at least one of the following: a PUSCH-less frequency domain unit without physical uplink shared channel component carriers, a PUCCH-less frequency domain unit without physical uplink control channel; or

[0526] The plurality of serving cells includes a first cell, which includes at least one of the following: a cell without a physical uplink shared channel (PUSCH-less) and a cell without a physical uplink control channel (PUCCH-less).

[0527] In some embodiments, the apparatus 400 further includes a first transmitting module, wherein before the receiving module receives a first uplink reference signal group from at least one uplink reference signal group, the first transmitting module is configured to:

[0528] Send a first indication message, the first indication message being used to trigger or activate the first uplink reference signal in the first uplink reference signal group;

[0529] Wherein, the first uplink reference signal group includes the first uplink reference signal;

[0530] The first indication information is not used to trigger or activate other uplink reference signals in the first uplink reference signal group other than the first uplink reference signal, or the first indication information is also used to trigger or activate other uplink reference signals in the first uplink reference signal group other than the first uplink reference signal.

[0531] In some embodiments, the first sending module is further configured to:

[0532] Send a second indication message, which is used to indicate that other uplink reference signals in the first uplink reference signal group other than the first uplink reference signal are not triggered or activated, or the second indication message is used to indicate that the other uplink reference signals are triggered or activated.

[0533] In some embodiments, the device 400 further includes:

[0534] The second transmitting module is used to transmit fourth indication information, which is used to indicate information of at least one uplink reference signal subgroup in the at least one uplink reference signal group.

[0535] In some embodiments, the uplink reference signal within the uplink reference signal subgroup satisfies at least one of the following:

[0536] The transmission of the uplink reference signal imposes the same type of restriction on the transmission in the target frequency domain unit;

[0537] The uplink reference signals have the same priority;

[0538] When the uplink reference signal collides with other signals, the rules for transmitting the signal are the same;

[0539] The uplink reference signal is associated with the same radio frequency switching time;

[0540] The uplink reference signal shares the same radio frequency link resources;

[0541] The uplink reference signal is associated with the same frequency domain unit;

[0542] The uplink reference signal is associated with the same source frequency domain unit, or is switched from the same source frequency domain unit;

[0543] The frequency domain units associated with the uplink reference signal are those belonging to the same frequency domain range and are continuous.

[0544] In some embodiments, the receiving module 401 is further configured to:

[0545] Receive first capability information, which is related to the type of restriction on transmission of the second uplink reference signal on the target frequency domain unit;

[0546] Wherein, the second uplink reference signal belongs to the first uplink reference signal group;

[0547] The restriction type includes a first type or a second type. The first type refers to restricting the transmission on the target frequency domain unit during the radio frequency switching time associated with the second uplink reference signal, and the second type refers to restricting the transmission on the target frequency domain unit during the radio frequency switching time associated with the second uplink reference signal and the transmission time of the second uplink reference signal.

[0548] In some embodiments, the target frequency domain unit includes at least one of the following:

[0549] The source frequency domain unit, wherein the second uplink reference signal is an uplink reference signal switched from the source frequency domain unit;

[0550] An arbitrary frequency domain unit that is different from the second frequency domain unit and is used for uplink transmission;

[0551] Frequency domain units associated with the source frequency domain units;

[0552] Frequency domain units located within the same frequency domain range as the second frequency domain unit;

[0553] Frequency domain units that are not in the same frequency domain range as the second frequency domain unit;

[0554] Frequency domain units that belong to the same frequency domain range and are continuous with the second frequency domain unit;

[0555] Frequency domain units that belong to the same frequency domain range as the second frequency domain unit but are not contiguous;

[0556] Specific frequency domain units configured in the network;

[0557] The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal, and the target frequency domain unit is different from the second frequency domain unit.

[0558] In some embodiments, the first capability information is used to indicate at least one of the following:

[0559] The terminal supports uplink transmission on the third frequency domain unit;

[0560] The terminal supports enabling or disabling uplink transmission of the third frequency domain unit;

[0561] The terminal supports uplink transmission of the third frequency domain unit, which is enabled or disabled by default.

[0562] The second frequency domain unit belongs to or is associated with the third frequency domain unit, and the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

[0563] In some embodiments, the device 400 further includes;

[0564] The third transmitting module is used to transmit third indication information, which is used to instruct the terminal to switch uplink reference signals among multiple third uplink reference signals.

[0565] Wherein, the plurality of third uplink reference signals satisfy at least one of the following:

[0566] The switching time between adjacent third uplink reference signals is less than or equal to the first switching time;

[0567] The plurality of third uplink reference signals are at least partially configured the same;

[0568] The time interval between adjacent third uplink reference signals is greater than or equal to the second switching time and less than or equal to the third switching time or a multiple of the third switching time;

[0569] The frequency domain unit associated with the third uplink reference signal is a PUSCH-less frequency domain unit without physical uplink shared channel component carriers;

[0570] The plurality of third uplink reference signals are uplink reference signals switched from the same source frequency domain unit;

[0571] The frequency domain units associated with the multiple third uplink reference signals are located within the same frequency domain range;

[0572] The time domain range between the first third uplink reference signal and the last third uplink reference signal is within the first time domain range;

[0573] Wherein, the first switching time is the switching time between the frequency domain unit used for transmitting the Physical Uplink Shared Channel (PUSCH) or the Physical Uplink Control Channel (PUCCH) and the frequency domain unit used for transmitting the uplink reference signal, and the second switching time is the switching time between the frequency domain units used for transmitting the uplink reference signal.

[0574] The third switching time is determined based on the first switching time.

[0575] In some embodiments, the receiving module 401 is further configured to;

[0576] Receive second capability information, which is used to indicate the second handover time.

[0577] In some embodiments, when any third uplink reference signal among the plurality of third uplink reference signals collides with other signals, the plurality of third uplink reference signals have the same priority, or the rules for transmitting the plurality of third uplink reference signals are the same, or the plurality of third uplink reference signals are transmitted as a whole or not transmitted as a whole.

[0578] The apparatus provided in this application embodiment can implement the various processes implemented in the method embodiment of FIG3 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0579] As shown in Figure 8, this application embodiment also provides a communication device 500, including a processor 501 and a memory 502. The memory 502 stores programs or instructions that can run on the processor 501. For example, when the communication device 500 is a terminal, the program or instructions executed by the processor 501 implement the various steps of the above-described wireless communication method embodiment and achieve the same technical effect. When the communication device 500 is a network-side device, the program or instructions executed by the processor 501 implement the various steps of the above-described wireless communication method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0580] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the method embodiment shown in FIG3. This terminal embodiment corresponds to the above-described terminal-side method embodiment, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. The terminal may be the wireless communication device shown in FIG6. Specifically, FIG9 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0581] The terminal 600 includes, but is not limited to, at least some of the following components: radio frequency unit 601, network module 602, audio output unit 603, input unit 604, sensor 605, display unit 606, user input unit 607, interface unit 608, memory 609, and processor 610.

[0582] Those skilled in the art will understand that terminal 600 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to processor 610 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 9 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0583] It should be understood that, in this embodiment, the input unit 604 may include a graphics processor 6041 and a microphone 6042. The graphics processor 6041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 607 includes at least one of a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts: a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0584] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 601 can transmit it to the processor 610 for processing; in addition, the radio frequency unit 601 can send uplink data to the network-side device. Typically, the radio frequency unit 601 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0585] The memory 609 can be used to store software programs or instructions, as well as various data. The memory 609 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 609 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), 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), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 609 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0586] Processor 610 may include one or more processing units; optionally, processor 610 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 610.

[0587] The radio frequency unit 601 is used to transmit at least one uplink reference signal group in the uplink reference signal group.

[0588] The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

[0589] In this embodiment, the terminal transmits a first uplink reference signal group from at least one uplink reference signal group. Since the first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain units, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells, uplink reference signals associated with different frequency domain units or uplink reference signals associated with different serving cells can be transmitted together, thereby reducing the transmission complexity of the uplink reference signal.

[0590] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of method embodiment 200 and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0591] This application also provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG3. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0592] Specifically, this application embodiment also provides a network-side device, which can be the wireless communication device shown in FIG. 7. As shown in FIG. 10, the network-side device 700 includes: an antenna 71, a radio frequency device 72, a baseband device 73, a processor 74, and a memory 75. The antenna 71 is connected to the radio frequency device 72. In the uplink direction, the radio frequency device 72 receives information through the antenna 71 and sends the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes the information to be transmitted and sends it to the radio frequency device 72. The radio frequency device 72 processes the received information and transmits it through the antenna 71.

[0593] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 73, which includes a baseband processor.

[0594] The baseband device 73 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG10. One of the chips is, for example, a baseband processor, which is connected to the memory 75 via a bus interface to call the program or instructions in the memory 75 to execute the network-side device operation shown in the above method embodiment.

[0595] The network-side device may also include a network interface 76, such as a Common Public Radio Interface (CPRI).

[0596] The radio frequency device 72 is used to receive a first uplink reference signal group from at least one uplink reference signal group;

[0597] The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

[0598] In addition, the network-side device 700 of this application embodiment also includes: a program or instructions stored in a memory 75 and executable on a processor 74. The processor 74 calls the program or instructions in the memory 75 to execute the methods executed by each module shown in FIG7 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0599] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described wireless communication method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0600] The processor mentioned above is either the processor in the terminal described in the above embodiments or the processor in the network-side device. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0601] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described wireless communication method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0602] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0603] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described wireless communication method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0604] This application also provides a wireless communication system, including: a terminal and a network-side device, wherein the terminal can be used to execute the steps of the wireless communication method described above, and the network-side device can be used to execute the steps of the wireless communication method described above.

[0605] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0606] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.), and the computer software product includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0607] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A wireless communication method, wherein, include: The terminal transmits at least one of the first uplink reference signal groups; The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

2. The method according to claim 1, wherein, The plurality of frequency domain units includes a first frequency domain unit, which includes at least one of the following: a PUSCH-less frequency domain unit without physical uplink shared channel component carriers, a PUCCH-less frequency domain unit without physical uplink control channel; or The plurality of serving cells includes a first cell, which includes at least one of the following: a cell without a physical uplink shared channel (PUSCH-less) and a cell without a physical uplink control channel (PUCCH-less).

3. The method according to claim 1 or 2, wherein, Before the terminal transmits the first uplink reference signal group in at least one uplink reference signal group, the method further includes: The terminal receives first indication information, which is used to trigger or activate the first uplink reference signal in the first uplink reference signal group. The first indication information is also used to trigger or activate other uplink reference signals in the first uplink reference signal group besides the first uplink reference signal.

4. The method according to any one of claims 1 to 3, wherein, The method further includes: The terminal receives a second indication, which indicates that other uplink reference signals in the first uplink reference signal group other than the first uplink reference signal should not be triggered or activated, or the second indication indicates that the other uplink reference signals should be triggered or activated.

5. The method according to any one of claims 1 to 4, wherein, The method further includes: The terminal determines at least one uplink reference signal subgroup based on the at least one uplink reference signal group or the first uplink reference signal group.

6. The method according to any one of claims 1 to 5, wherein, The terminal determines at least one uplink reference signal subgroup based on the at least one uplink reference signal group or the first uplink reference signal group, including at least one of the following: The terminals will share the same uplink reference signals with the same radio frequency link resources and identify them as an uplink reference signal subgroup. The terminal will associate uplink reference signals with the same frequency domain unit and determine them as an uplink reference signal subgroup; The terminal determines uplink reference signals that switch from the same source frequency domain unit as an uplink reference signal subgroup; The terminal will associate uplink reference signals with the same radio frequency switching time and determine them as an uplink reference signal subgroup. The terminal identifies uplink reference signals whose associated frequency domain units are consecutive frequency domain units belonging to the same frequency domain range as an uplink reference signal subgroup. The terminal determines the at least one uplink reference signal subgroup according to network instructions.

7. The method according to claim 6, wherein, The uplink reference signal within the uplink reference signal subgroup satisfies at least one of the following: The transmission of the uplink reference signal imposes the same type of restriction on the transmission in the target frequency domain unit; The uplink reference signals have the same priority; When the uplink reference signal collides with other signals, the rules for transmitting the signal are the same; The uplink reference signal is associated with the same radio frequency switching time; The uplink reference signal shares the same radio frequency link resources; The uplink reference signal is associated with the same frequency domain unit; The uplink reference signal is associated with the same source frequency domain unit, or the uplink reference signal belongs to the reference signal switched from the same source frequency domain unit; The frequency domain units associated with the uplink reference signal are those belonging to the same frequency domain range and are continuous.

8. The method according to any one of claims 1 to 7, wherein, The method further includes: The terminal determines the type of restriction on transmission of the second uplink reference signal on the target frequency domain unit; Wherein, the second uplink reference signal belongs to the first uplink reference signal group; The restriction type includes a first type or a second type. The first type refers to restricting the transmission on the target frequency domain unit during the radio frequency switching time associated with the second uplink reference signal, and the second type refers to restricting the transmission on the target frequency domain unit during the radio frequency switching time associated with the second uplink reference signal and the transmission time of the second uplink reference signal.

9. The method according to claim 8, wherein, The target frequency domain unit includes at least one of the following: The source frequency domain unit, wherein the second uplink reference signal is an uplink reference signal switched from the source frequency domain unit; An arbitrary frequency domain unit that is different from the second frequency domain unit and is used for uplink transmission; Frequency domain units associated with the source frequency domain units; Frequency domain units located within the same frequency domain range as the second frequency domain unit; Frequency domain units that are not in the same frequency domain range as the second frequency domain unit; A frequency domain unit that belongs to the same frequency domain range and is continuous with the second frequency domain unit; Frequency domain units that belong to the same frequency domain range as the second frequency domain unit but are not consecutive; Specific frequency domain units configured in the network; The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal, and the target frequency domain unit is different from the second frequency domain unit.

10. The method according to claim 8 or 9, wherein, If the target frequency domain unit includes a source frequency domain unit, the terminal determines the type of restriction on transmission of the second uplink reference signal on the transmission in the target frequency domain unit, including: The terminal determines the restriction type based on a first condition; or If the first condition is met, the terminal will determine the second type as the restriction type; or If the first condition is not met, the terminal, according to network instructions, determines either the first type or the second type as the restriction type; or If the first condition is not met, the terminal will determine the first type as the restriction type; The first condition includes at least one of the following: The second frequency domain unit and the source frequency domain unit are located in the same frequency domain range; The second frequency domain unit is located in the same frequency domain as the source frequency domain unit, and the timing advance group TAG is the same; The second frequency domain unit and the source frequency domain unit are located in the same frequency domain range and are continuous in the frequency domain; The second frequency domain unit is located in the same frequency domain as the source frequency domain unit, the frequency domain is continuous, and the timing advance group TAG is the same; The second frequency domain unit shares the same radio frequency link resources as the source frequency domain unit; Wherein, the second uplink reference signal is an uplink reference signal switched from the source frequency domain unit, and the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

11. The method according to claim 8 or 9, wherein, If the target frequency domain unit includes frequency domain units other than the source frequency domain unit, the terminal determines the type of restriction on transmission of the second uplink reference signal on the transmission of the target frequency domain unit, including: The terminal determines the restriction type of the second uplink reference signal on the source frequency domain unit as the restriction type; or The terminal determines the restriction type based on the second condition; or If the second condition is met, the terminal will determine the second type as the restriction type; or If the second condition is not met, the terminal determines the restriction type of the first type, the second type, or the second uplink reference signal on the source frequency domain unit as the restriction type according to the network instruction; The second condition includes at least one of the following: The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range; The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range and have the same timing advance group TAG; The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range and are continuous in the frequency domain; The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range, are continuous in the frequency domain, and have the same timing advance group TAG; The second frequency domain unit shares the same radio frequency link resources with the target frequency domain unit; The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

12. The method according to claim 8 or 9, wherein, The terminal determines the type of restriction on transmission of the second uplink reference signal on the target frequency domain unit, including: The terminal determines the restriction type based on a third condition; or If the third condition is met, the terminal will determine the second type as the restriction type; or If the third condition is not met, the terminal, according to network instructions, determines either the first type or the second type as the restriction type; or If the third condition is not met, the terminal will determine the first type as the restriction type; The third condition includes at least one of the following: The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range; The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range and have the same timing advance group TAG; The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range and are continuous in the frequency domain; The second frequency domain unit and the target frequency domain unit are located in the same frequency domain range, are continuous in the frequency domain, and have the same timing advance group TAG; The second frequency domain unit shares the same radio frequency link resources with the target frequency domain unit; The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

13. The method according to claim 8 or 9, wherein, The terminal determines the type of restriction on transmission of the second uplink reference signal on the target frequency domain unit, including: If the second uplink reference signal is not associated with a source frequency domain unit, the terminal determines the first type as the restriction type; or, If the source frequency domain unit associated with the second uplink reference signal is a frequency domain unit associated with another uplink reference signal, the terminal determines the first type as the restriction type; or, If the source frequency domain unit associated with the second uplink reference signal is a frequency domain unit associated with another uplink reference signal, and the other uplink reference signal is not associated with a source frequency domain unit, the terminal determines the first type as the restriction type; or, If the second uplink reference signal is not associated with a source frequency domain unit, the terminal determines the first type as the restriction type, and determines the first type as the restriction type for the transmission of other uplink reference signals located in the same subgroup as the second uplink reference signal on the target frequency domain unit.

14. The method according to any one of claims 8 to 13, wherein, Before the terminal determines the type of restriction on transmission of the second uplink reference signal on the target frequency domain unit, the method further includes: The terminal sends first capability information, which is related to the restriction type.

15. The method according to claim 14, wherein, The first capability information is used to indicate at least one of the following: The terminal supports uplink transmission on the third frequency domain unit; The terminal supports enabling or disabling uplink transmission of the third frequency domain unit; The terminal supports uplink transmission of the third frequency domain unit, which can be enabled or disabled by default. The second frequency domain unit belongs to or is associated with the third frequency domain unit, and the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

16. The method according to any one of claims 1 to 15, wherein, The method further includes: The terminal switches uplink reference signals between the at least one uplink reference signal group or multiple third uplink reference signals in the first uplink reference signal group; Wherein, the plurality of third uplink reference signals satisfy at least one of the following: The switching time between adjacent third uplink reference signals is less than or equal to the first switching time; The plurality of third uplink reference signals are at least partially configured the same; The time interval between adjacent third uplink reference signals is greater than or equal to the second switching time and less than or equal to the third switching time or a multiple of the third switching time; The frequency domain unit associated with the third uplink reference signal is a PUSCH-less frequency domain unit without physical uplink shared channel component carriers; The plurality of third uplink reference signals are uplink reference signals switched from the same source frequency domain unit; The frequency domain units associated with the multiple third uplink reference signals are located within the same frequency domain range; The time domain range between the first third uplink reference signal and the last third uplink reference signal is within the first time domain range; Wherein, the first switching time is the switching time between the frequency domain unit used for transmitting the Physical Uplink Shared Channel (PUSCH) or the Physical Uplink Control Channel (PUCCH) and the frequency domain unit used for transmitting the uplink reference signal, and the second switching time is the switching time between the frequency domain units used for transmitting the uplink reference signal. The third switching time is determined based on the first switching time.

17. The method according to claim 16, wherein, Before the terminal performs uplink reference signal switching between the at least one uplink reference signal group or multiple third uplink reference signals in the first uplink reference signal group, the method further includes: The terminal receives third indication information, which is used to instruct the terminal to switch uplink reference signals among the plurality of third uplink reference signals.

18. The method according to claim 16 or 17, wherein, Before the terminal performs uplink reference signal switching between the at least one uplink reference signal group or multiple third uplink reference signals in the first uplink reference signal group, the method further includes: The terminal sends second capability information, which is used to indicate the second handover time.

19. The method according to any one of claims 16 to 18, wherein, When any of the plurality of third uplink reference signals collides with other signals, the plurality of third uplink reference signals have the same priority, or the rules for transmitting the plurality of third uplink reference signals are the same, or the plurality of third uplink reference signals are transmitted as a whole or not transmitted as a whole.

20. A wireless communication method, wherein, include: The network-side device receives a first uplink reference signal group from at least one uplink reference signal group; The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

21. The method according to claim 20, wherein, The plurality of frequency domain units includes a first frequency domain unit, which includes at least one of the following: a PUSCH-less frequency domain unit without physical uplink shared channel component carriers, a PUCCH-less frequency domain unit without physical uplink control channel; or The plurality of serving cells includes a first cell, which includes at least one of the following: a cell without a physical uplink shared channel (PUSCH-less) and a cell without a physical uplink control channel (PUCCH-less).

22. The method according to claim 20 or 21, wherein, Before the network-side device receives the first uplink reference signal group from at least one uplink reference signal group, the method further includes: The network-side device sends a first indication information, which is used to trigger or activate the first uplink reference signal in the first uplink reference signal group. Wherein, the first uplink reference signal group includes the first uplink reference signal; The first indication information is also used to trigger or activate other uplink reference signals in the first uplink reference signal group besides the first uplink reference signal.

23. The method according to any one of claims 20 to 22, wherein, The method further includes: The network-side device sends a second indication message, which is used to indicate that other uplink reference signals in the first uplink reference signal group other than the first uplink reference signal are not triggered or activated, or the second indication message is used to indicate that the other uplink reference signals are triggered or activated.

24. The method according to any one of claims 20 to 23, wherein, The method further includes: The network-side device sends a fourth indication information, which is used to indicate information of at least one uplink reference signal subgroup in the at least one uplink reference signal group; Wherein, the uplink reference signal within the uplink reference signal subgroup satisfies at least one of the following: The transmission of the uplink reference signal imposes the same type of restriction on the transmission in the target frequency domain unit; The uplink reference signals have the same priority; When the uplink reference signal collides with other signals, the rules for transmitting the signal are the same; The uplink reference signal is associated with the same radio frequency switching time; The uplink reference signal shares the same radio frequency link resources; The uplink reference signal is associated with the same frequency domain unit; The uplink reference signal is associated with the same source frequency domain unit, or is switched from the same source frequency domain unit; The frequency domain units associated with the uplink reference signal are those belonging to the same frequency domain range and are continuous.

25. The method according to any one of claims 20 to 24, wherein, The method further includes: The network-side device receives first capability information, which is related to the type of restriction on transmission of the second uplink reference signal on the target frequency domain unit. Wherein, the second uplink reference signal belongs to the first uplink reference signal group; The restriction type includes a first type or a second type. The first type refers to restricting the transmission on the target frequency domain unit during the radio frequency switching time associated with the second uplink reference signal, and the second type refers to restricting the transmission on the target frequency domain unit during the radio frequency switching time associated with the second uplink reference signal and the transmission time of the second uplink reference signal.

26. The method according to claim 25, wherein, The target frequency domain unit includes at least one of the following: The source frequency domain unit, wherein the second uplink reference signal is an uplink reference signal switched from the source frequency domain unit; An arbitrary frequency domain unit that is different from the second frequency domain unit and is used for uplink transmission; Frequency domain units associated with the source frequency domain units; Frequency domain units located within the same frequency domain range as the second frequency domain unit; Frequency domain units that are not in the same frequency domain range as the second frequency domain unit; A frequency domain unit that belongs to the same frequency domain range and is continuous with the second frequency domain unit; Frequency domain units that belong to the same frequency domain range as the second frequency domain unit but are not consecutive; Specific frequency domain units configured in the network; The second frequency domain unit is the frequency domain unit associated with the second uplink reference signal, and the target frequency domain unit is different from the second frequency domain unit.

27. The method according to claim 25 or 26, wherein, The first capability information is used to indicate at least one of the following: The terminal supports uplink transmission on the third frequency domain unit; The terminal supports enabling or disabling uplink transmission of the third frequency domain unit; The terminal supports uplink transmission of the third frequency domain unit, which is enabled or disabled by default. The second frequency domain unit belongs to or is associated with the third frequency domain unit, and the second frequency domain unit is the frequency domain unit associated with the second uplink reference signal.

28. The method according to any one of claims 25 to 27, wherein, The method further includes: The network-side device receives a fifth indication information, which indicates that the transmission of the second uplink reference signal restricts the transmission on the target frequency domain unit to either the first type or the second type.

29. The method according to any one of claims 20 to 28, wherein, The method further includes; The network-side device sends a third indication information, which is used to instruct the terminal to switch uplink reference signals among multiple third uplink reference signals; Wherein, the plurality of third uplink reference signals satisfy at least one of the following: The switching time between adjacent third uplink reference signals is less than or equal to the first switching time; The plurality of third uplink reference signals are at least partially configured the same; The time interval between adjacent third uplink reference signals is greater than or equal to the second switching time and less than or equal to the third switching time or a multiple of the third switching time; The frequency domain unit associated with the third uplink reference signal is a PUSCH-less frequency domain unit without physical uplink shared channel component carriers; The plurality of third uplink reference signals are uplink reference signals switched from the same source frequency domain unit; The frequency domain units associated with the multiple third uplink reference signals are located within the same frequency domain range; The time domain range between the first third uplink reference signal and the last third uplink reference signal is within the first time domain range; Wherein, the first switching time is the switching time between the frequency domain unit used for transmitting the Physical Uplink Shared Channel (PUSCH) or the Physical Uplink Control Channel (PUCCH) and the frequency domain unit used for transmitting the uplink reference signal, and the second switching time is the switching time between the frequency domain units used for transmitting the uplink reference signal. The third switching time is determined based on the first switching time.

30. The method according to claim 29, wherein, The method further includes; The network-side device receives second capability information, which is used to indicate the second handover time.

31. The method according to claim 29 or 30, wherein, When any of the plurality of third uplink reference signals collides with other signals, the plurality of third uplink reference signals have the same priority, or the rules for transmitting the plurality of third uplink reference signals are the same.

32. A wireless communication device, wherein, include: The transmitting module is used to transmit at least one uplink reference signal group from at least one uplink reference signal group; The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

33. The apparatus according to claim 32, wherein, The apparatus further includes a first receiving module, wherein before the transmitting module transmits at least one first uplink reference signal group in an uplink reference signal group, the first receiving module is configured to: Receive first indication information, the first indication information being used to trigger or activate the first uplink reference signal in the first uplink reference signal group; Wherein, the first uplink reference signal group includes the first uplink reference signal; The first indication information is also used to trigger or activate other uplink reference signals in the first uplink reference signal group besides the first uplink reference signal.

34. The apparatus according to claim 32 or 33, wherein, The device further includes: The first processing module is configured to determine at least one uplink reference signal subgroup based on the at least one uplink reference signal group or the first uplink reference signal group.

35. The apparatus according to any one of claims 32 to 34, wherein, The device further includes: The second processing module is used to determine the type of restriction on the transmission of the second uplink reference signal on the transmission in the target frequency domain unit; Wherein, the second uplink reference signal belongs to the first uplink reference signal group; The restriction type includes a first type or a second type. The first type refers to restricting the transmission on the target frequency domain unit during the radio frequency switching time associated with the second uplink reference signal, and the second type refers to restricting the transmission on the target frequency domain unit during the radio frequency switching time associated with the second uplink reference signal and the transmission time of the second uplink reference signal.

36. The apparatus according to any one of claims 32 to 35, wherein, The device further includes: The third processing module is used to switch uplink reference signals between the at least one uplink reference signal group or multiple third uplink reference signals in the first uplink reference signal group. Wherein, the plurality of third uplink reference signals satisfy at least one of the following: The switching time between adjacent third uplink reference signals is less than or equal to the first switching time; The plurality of third uplink reference signals are at least partially configured the same; The time interval between adjacent third uplink reference signals is greater than or equal to the second switching time and less than or equal to the third switching time or a multiple of the third switching time; The frequency domain unit associated with the third uplink reference signal is a PUSCH-less frequency domain unit without physical uplink shared channel component carriers; The plurality of third uplink reference signals are uplink reference signals switched from the same source frequency domain unit; The frequency domain units associated with the multiple third uplink reference signals are located within the same frequency domain range; The time domain range between the first third uplink reference signal and the last third uplink reference signal is within the first time domain range; Wherein, the first switching time is the switching time between the frequency domain unit used for transmitting the Physical Uplink Shared Channel (PUSCH) or the Physical Uplink Control Channel (PUCCH) and the frequency domain unit used for transmitting the uplink reference signal, and the second switching time is the switching time between the frequency domain units used for transmitting the uplink reference signal. The third switching time is determined based on the first switching time.

37. The apparatus according to claim 36, wherein, The apparatus further includes a second receiving module, wherein before the third processing module performs uplink reference signal switching between the at least one uplink reference signal group or a plurality of third uplink reference signals in the first uplink reference signal group, the second receiving module is configured to: The terminal receives a third indication message, which is used to instruct the terminal to switch uplink reference signals among the plurality of third uplink reference signals.

38. A wireless communication device, wherein, include: The receiving module is configured to receive a first uplink reference signal group from at least one uplink reference signal group; The first uplink reference signal group includes at least one uplink reference signal associated with multiple frequency domain elements, or the first uplink reference signal group includes at least one uplink reference signal associated with multiple serving cells.

39. The apparatus according to claim 38, wherein, The apparatus further includes a first transmitting module, wherein before the receiving module receives a first uplink reference signal group from at least one uplink reference signal group, the first transmitting module is configured to: Send a first indication message, the first indication message being used to trigger or activate the first uplink reference signal in the first uplink reference signal group; Wherein, the first uplink reference signal group includes the first uplink reference signal; The first indication information is also used to trigger or activate other uplink reference signals in the first uplink reference signal group besides the first uplink reference signal.

40. The apparatus according to claim 38 or 39, wherein, The device further includes: The second transmitting module is used to transmit fourth indication information, which is used to indicate information of at least one uplink reference signal subgroup in the at least one uplink reference signal group.

41. The apparatus according to any one of claims 38 to 40, wherein, The device also includes; The third transmitting module is used to transmit third indication information, which is used to instruct the terminal to switch uplink reference signals among multiple third uplink reference signals. Wherein, the plurality of third uplink reference signals satisfy at least one of the following: The switching time between adjacent third uplink reference signals is less than or equal to the first switching time; The plurality of third uplink reference signals are at least partially configured the same; The time interval between adjacent third uplink reference signals is greater than or equal to the second switching time and less than or equal to the third switching time or a multiple of the third switching time; The frequency domain unit associated with the third uplink reference signal is a PUSCH-less frequency domain unit without physical uplink shared channel component carriers; The plurality of third uplink reference signals are uplink reference signals switched from the same source frequency domain unit; The frequency domain units associated with the multiple third uplink reference signals are located within the same frequency domain range; The time domain range between the first third uplink reference signal and the last third uplink reference signal is within the first time domain range; Wherein, the first switching time is the switching time between the frequency domain unit used for transmitting the Physical Uplink Shared Channel (PUSCH) or the Physical Uplink Control Channel (PUCCH) and the frequency domain unit used for transmitting the uplink reference signal, and the second switching time is the switching time between the frequency domain units used for transmitting the uplink reference signal. The third switching time is determined based on the first switching time.

42. A terminal, wherein, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the wireless communication method as described in any one of claims 1 to 19.

43. A network-side device, wherein, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the wireless communication method as described in any one of claims 20 to 31.

44. A readable storage medium, wherein, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the wireless communication method as described in any one of claims 1 to 19, or implement the steps of the wireless communication method as described in any one of claims 20 to 31.

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