User equipment, base stations, and their execution methods in wireless communication systems

Abstract

This disclosure provides a user equipment (UE), a base station, and a method executed thereon in a wireless communication system. A method executed by a UE in a wireless communication system includes: receiving a first downlink reference signal and system information in a first frequency domain resource group, wherein the system information includes a target received power of a first uplink channel / first uplink signal in the first frequency domain resource group; and transmitting a seventh uplink channel / seventh uplink signal, wherein when the seventh uplink channel / seventh uplink signal occupies at least two frequency domain resource groups, the transmission power of the seventh uplink channel / seventh uplink signal is determined based on a first power and at least one second power.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and more specifically, to user equipment, base stations, and methods performed thereon in wireless communication systems. Background Technology

[0002] To meet the increased demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or near-5G communication systems. Therefore, 5G or near-5G communication systems are also referred to as "super 4G networks" or "post-LTE systems".

[0003] 5G communication systems are implemented in higher frequency (millimeter wave, mmWave) bands, such as the 60GHz band, to achieve higher data rates. To reduce radio wave propagation loss and increase transmission distance, beamforming, massive MIMO, full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and massive MIMO technologies are discussed in 5G communication systems.

[0004] In addition, in 5G communication systems, development is underway to improve system networks based on advanced small cells, cloud radio access networks (RAN), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, cooperative multipoint (CoMP), and receiver interference cancellation.

[0005] In 5G systems, hybrid FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC) have been developed as advanced coding and modulation (ACM), while filter bank multicarrier (FBMC), non-orthogonal multiple access (NOMA) and sparse code multiple access (SCMA) have been developed as advanced access technologies. Summary of the Invention

[0006] Embodiments of this disclosure provide a method performed by a user equipment (UE) in a wireless communication system, comprising: receiving a first downlink reference signal and system information in a first frequency domain resource group, wherein the system information includes a target received power of a first uplink channel / first uplink signal in the first frequency domain resource group; and transmitting a seventh uplink channel / seventh uplink signal, wherein when the seventh uplink channel / seventh uplink signal occupies at least two frequency domain resource groups, the transmission power of the seventh uplink channel / seventh uplink signal is determined based on a first power and at least one second power, wherein the at least two frequency domain resource groups include a first frequency domain resource group and at least one second frequency domain resource group; wherein the first power is determined based on the target received power and the first downlink reference signal, and the second power is determined based on at least one of the following: based on the target received power, the first downlink reference signal, and a first offset; or based on the target received power, a second downlink reference signal received in a second frequency domain resource group, and the first offset.

[0007] According to embodiments of this disclosure, the first offset includes at least one of the following: an offset between the target received power of the first uplink channel / first uplink signal and the target received power of the second uplink channel / second uplink signal; an offset between the path loss of the first downlink frequency domain resource group determined based on the first downlink reference signal and the path loss of the second frequency domain resource group; an offset between the transmit power of the first uplink channel / first uplink signal and the transmit power of the second uplink channel / second uplink signal; an offset between the nominal transmit power of the first uplink channel / first uplink signal and the nominal transmit power of the second uplink channel / second uplink signal; and an offset between the transmit power of the first downlink reference signal in the first frequency domain resource group and the transmit power of the second downlink reference signal in the second frequency domain resource group.

[0008] According to embodiments of this disclosure, the method further includes: receiving a first downlink channel / first downlink signal in at least one of the first frequency domain resource group and the second frequency domain resource group, wherein the first downlink channel / first downlink signal includes a second offset, wherein the second offset indicates an update of the first offset or indicates an adjustment of the first offset; and transmitting a third uplink channel / third uplink signal in the second frequency domain resource group, wherein the transmission power of the third uplink channel / third uplink signal is determined based on the target received power, the first downlink reference signal, and the second offset.

[0009] According to embodiments of this disclosure, the second power is determined based on at least one of the following: the target received power, the first downlink reference signal, the first offset, and the second offset; the target received power, the first downlink reference signal, and the second offset; the target received power, the second downlink reference signal, the first offset, and the second offset; or the target received power, the second downlink reference signal, and the second offset.

[0010] According to embodiments of this disclosure, the transmission power of the seventh uplink channel / seventh uplink signal in the method is one of the minimum, maximum, and average values ​​of the first power and the second power.

[0011] According to an embodiment of this disclosure, the method further includes: when a first condition is met, transmitting a fifth uplink signal in the first frequency domain resource group, wherein the fifth uplink signal is used to request activation of the second downlink reference signal; wherein the first condition includes at least one of the following: the system information does not include parameters or information indicating the first offset; the system information includes configuration information of the downlink reference signals in the second frequency domain resource group; the system information includes configuration information of the downlink reference signals in the second frequency domain resource group, and all downlink reference signals in the second frequency domain resource group are in an inactive state.

[0012] According to an embodiment of this disclosure, the method further includes: when a second condition is met, not performing uplink transmission on the second frequency domain resource group, wherein the second condition includes at least one of the following: the system information does not include configuration information of downlink reference signals in the second frequency domain resource group; the system information includes configuration information of downlink reference signals in the second frequency domain resource group, and all downlink reference signals in the second frequency domain resource group are in an inactive state.

[0013] According to embodiments of this disclosure, the method further includes: transmitting the first uplink channel / first uplink signal in the first frequency domain resource group, wherein the second uplink channel / second uplink signal includes at least a second uplink reference signal, wherein the time domain resources of the second uplink reference signal satisfy at least one of the following: the first time unit occupied by the second uplink reference signal is the same as the start time unit of the first uplink channel / first uplink signal; the first time unit occupied by the second uplink reference signal is the same as the start time unit of the demodulation reference signal DMRS in the first uplink channel / first uplink signal; the time unit occupied by the second uplink reference signal is the same as the time unit occupied by the demodulation reference signal DMRS in the first uplink channel / first uplink signal.

[0014] According to an embodiment of this disclosure, the first uplink channel of the method is a Physical Uplink Shared Channel (PUSCH) that includes Message 3 for Random Access.

[0015] According to embodiments of this disclosure, the method further includes: receiving an eighth downlink channel / eighth downlink signal, wherein the eighth downlink channel / eighth downlink signal includes a parameter indicating a second offset; wherein, if the eighth downlink channel / eighth downlink signal is not received within t4 time units after the last time unit of the second uplink reference signal, at least one of the following is performed: treating the second offset as 0; determining the transmission power of the uplink channel / uplink signal in the second frequency domain resource group based on the first offset; and not transmitting the uplink channel / uplink signal on the second frequency domain resource group.

[0016] According to embodiments of this disclosure, the method further includes: transmitting a fourth uplink channel / fourth uplink signal in the first frequency domain resource group, wherein the fourth uplink channel / fourth uplink signal includes at least one of a first actual transmission power of the first uplink channel / first uplink signal and a second actual transmission power of the second uplink channel / second uplink signal.

[0017] According to embodiments of this disclosure, the method further includes: receiving configuration information associated with one or more preambles in a first frequency domain resource group, wherein the one or more preambles are respectively associated with one or more second frequency domain resource groups; transmitting at least one of the one or more preambles in the first frequency domain resource group; and receiving at least one second downlink reference signal in at least one second frequency domain resource group corresponding to the at least one preamble, wherein when the UE transmits multiple preambles and the multiple preambles respectively correspond to multiple second frequency domain resource groups, the multiple second downlink reference signals in the multiple second frequency domain resource groups occupy the same time domain resources.

[0018] According to embodiments of this disclosure, the method further includes: receiving configuration information related to one or more uplink resources in a first frequency domain resource group, wherein the one or more uplink resources are respectively associated with one or more second frequency domain resource groups; transmitting a preamble in at least one of the one or more uplink resources in the first frequency domain resource group; and receiving at least one second downlink reference signal in at least one second frequency domain resource group corresponding to the at least one uplink resource, wherein, when the UE transmits a preamble in multiple uplink resources and the multiple uplink resources respectively correspond to multiple second frequency domain resource groups, the multiple second downlink reference signals in the multiple second frequency domain resource groups occupy the same time domain resources.

[0019] According to embodiments of this disclosure, when the method satisfies a third condition, the transmit power of the second uplink channel / second uplink signal is determined based on the target receive power, the second downlink reference signal, and the first offset, wherein the third condition includes at least one of the following: the system information includes configuration information of the downlink reference signal in the second frequency domain resource group; the system information includes information related to the activation of the downlink reference signal in the second frequency domain resource group; the UE is configured with the downlink reference signal in the second frequency domain resource group; the UE is configured with the activation of the downlink reference signal in the second frequency domain resource group.

[0020] According to embodiments of this disclosure, when the method satisfies a fourth condition, the transmit power of the second uplink channel / second uplink signal is determined based on the target receive power, the first downlink reference signal, and the first offset, wherein the fourth condition includes at least one of the following: the system information does not include configuration information of the downlink reference signal in the second frequency domain resource group; the system information includes information related to the downlink reference signal in the second frequency domain resource group not being activated; the UE is not configured with the downlink reference signal in the second frequency domain resource group; the UE is not configured with the activation of the downlink reference signal in the second frequency domain resource group.

[0021] According to embodiments of this disclosure, the method further includes: receiving a first parameter in the first frequency domain resource group, wherein, if a fifth condition is met, the first parameter indicates the target received power of the second uplink channel / second uplink signal; and wherein, if a sixth condition is met, the first parameter indicates information related to the first offset, wherein the fifth condition includes at least one of the following: the system information includes configuration information of downlink reference signals in the second frequency domain resource group; the system information includes information related to the activation of downlink reference signals in the second frequency domain resource group; the UE is configured with downlink reference signals in the second frequency domain resource group; the UE is configured to activate downlink reference signals in the second frequency domain resource group; wherein the sixth condition includes at least one of the following: the system information does not include configuration information of downlink reference signals in the second frequency domain resource group; the system information includes information related to the non-activation of downlink reference signals in the second frequency domain resource group; the UE is not configured with downlink reference signals in the second frequency domain resource group; the UE is not configured to activate downlink reference signals in the second frequency domain resource group; the UE is configured to not activate downlink reference signals in the second frequency domain resource group.

[0022] Embodiments of this disclosure provide a method performed by a base station in a wireless communication system, comprising: transmitting a first downlink reference signal and system information in a first frequency domain resource group, wherein the system information includes a target received power of a first uplink channel / first uplink signal in the first frequency domain resource group; and receiving a seventh uplink channel / seventh uplink signal, wherein when the seventh uplink channel / seventh uplink signal occupies at least two frequency domain resource groups, the transmission power of the seventh uplink channel / seventh uplink signal is determined based on a first power and at least one second power, wherein the at least two frequency domain resource groups include a first frequency domain resource group and at least one second frequency domain resource group; wherein the first power is determined based on the target received power and the first downlink reference signal, and the second power is determined based on at least one of the following: based on the target received power, the first downlink reference signal, and a first offset; or based on the target received power, a second downlink reference signal received in a second frequency domain resource group, and the first offset.

[0023] According to embodiments of this disclosure, the first offset includes at least one of the following: an offset between the target received power of the first uplink channel / first uplink signal and the target received power of the second uplink channel / second uplink signal; an offset between the path loss of the first downlink frequency domain resource group determined based on the first downlink reference signal and the path loss of the second frequency domain resource group; an offset between the transmit power of the first uplink channel / first uplink signal and the transmit power of the second uplink channel / second uplink signal; an offset between the nominal transmit power of the first uplink channel / first uplink signal and the nominal transmit power of the second uplink channel / second uplink signal; and an offset between the transmit power of the first downlink reference signal in the first frequency domain resource group and the transmit power of the second downlink reference signal in the second frequency domain resource group.

[0024] According to embodiments of this disclosure, the method further includes: transmitting a first downlink channel / first downlink signal in at least one of the first frequency domain resource group and the second frequency domain resource group, wherein the first downlink channel / first downlink signal includes a second offset, wherein the second offset indicates an update of the first offset or indicates an adjustment of the first offset; and receiving a third uplink channel / third uplink signal in the second frequency domain resource group, wherein the transmission power of the third uplink channel / third uplink signal is determined based on the target reception power, the first downlink reference signal, and the second offset.

[0025] According to embodiments of this disclosure, the second power is determined based on at least one of the following: the target received power, the first downlink reference signal, the first offset, and the second offset; the target received power, the first downlink reference signal, and the second offset; the target received power, the second downlink reference signal, the first offset, and the second offset; or the target received power, the second downlink reference signal, and the second offset.

[0026] According to embodiments of this disclosure, the transmission power of the seventh uplink channel / seventh uplink signal is one of the minimum, maximum, and average values ​​of the first power and the second power.

[0027] According to an embodiment of this disclosure, the method further includes: receiving a fifth uplink signal in the first frequency domain resource group when a first condition is met, wherein the fifth uplink signal is used to request activation of the second downlink reference signal; wherein the first condition includes at least one of the following: the system information does not include parameters or information indicating the first offset; the system information includes configuration information of the downlink reference signals in the second frequency domain resource group; the system information includes configuration information of the downlink reference signals in the second frequency domain resource group, and all downlink reference signals in the second frequency domain resource group are inactive.

[0028] According to an embodiment of this disclosure, the method further includes: when a second condition is met, not receiving uplink transmissions on the second frequency domain resource group, wherein the second condition includes at least one of the following: the system information does not include configuration information of downlink reference signals in the second frequency domain resource group; the system information includes configuration information of downlink reference signals in the second frequency domain resource group, and all downlink reference signals in the second frequency domain resource group are in an inactive state.

[0029] According to embodiments of this disclosure, the method further includes: receiving the first uplink channel / first uplink signal in the first frequency domain resource group, wherein the second uplink channel / second uplink signal includes at least a second uplink reference signal, wherein the time domain resources of the second uplink reference signal satisfy at least one of the following: the first time unit occupied by the second uplink reference signal is the same as the start time unit of the first uplink channel / first uplink signal; the first time unit occupied by the second uplink reference signal is the same as the start time unit of the demodulation reference signal DMRS in the first uplink channel / first uplink signal; the time unit occupied by the second uplink reference signal is the same as the time unit occupied by the demodulation reference signal DMRS in the first uplink channel / first uplink signal.

[0030] According to an embodiment of this disclosure, the first uplink channel is a Physical Uplink Shared Channel (PUSCH) that includes message 3 for random access.

[0031] According to embodiments of this disclosure, the method further includes: transmitting an eighth downlink channel / eighth downlink signal, wherein the eighth downlink channel / eighth downlink signal includes a parameter indicating a second offset; wherein, if the eighth downlink channel / eighth downlink signal is not transmitted within t4 time units after the last time unit of the second uplink reference signal, at least one of the following is performed: treating the second offset as 0; determining the transmission power of the uplink channel / uplink signal in the second frequency domain resource group based on the first offset; and not receiving the uplink channel / uplink signal on the second frequency domain resource group.

[0032] According to an embodiment of this disclosure, the method further includes: receiving a fourth uplink channel / fourth uplink signal in the first frequency domain resource group, wherein the fourth uplink channel / fourth uplink signal includes at least one of a first actual transmission power of the first uplink channel / first uplink signal and a second actual transmission power of the second uplink channel / second uplink signal.

[0033] According to embodiments of this disclosure, the method further includes: transmitting configuration information associated with one or more preambles in a first frequency domain resource group, wherein the one or more preambles are respectively associated with one or more second frequency domain resource groups; receiving at least one preamble among the one or more preambles in the first frequency domain resource group; and transmitting at least one second downlink reference signal in at least one second frequency domain resource group corresponding to the at least one preamble, wherein, when multiple preambles are received and the multiple preambles respectively correspond to multiple second frequency domain resource groups, the multiple second downlink reference signals in the multiple second frequency domain resource groups occupy the same time domain resources.

[0034] According to embodiments of this disclosure, the method further includes: transmitting configuration information related to one or more uplink resources in a first frequency domain resource group, wherein the one or more uplink resources are respectively associated with one or more second frequency domain resource groups; receiving a preamble in at least one of the one or more uplink resources in the first frequency domain resource group; and transmitting at least one second downlink reference signal in at least one second frequency domain resource group corresponding to the at least one uplink resource, wherein when a preamble is received in multiple uplink resources and the multiple uplink resources respectively correspond to multiple second frequency domain resource groups, the multiple second downlink reference signals in the multiple second frequency domain resource groups occupy the same time domain resources.

[0035] According to embodiments of this disclosure, when a third condition is met, the transmit power of the second uplink channel / second uplink signal is determined based on the target receive power, the second downlink reference signal, and the first offset, wherein the third condition includes at least one of the following: the system information includes configuration information of the downlink reference signal in the second frequency domain resource group; the system information includes information related to the activation of the downlink reference signal in the second frequency domain resource group; the UE is configured with the downlink reference signal in the second frequency domain resource group; the UE is configured with the activation of the downlink reference signal in the second frequency domain resource group.

[0036] According to embodiments of this disclosure, when a fourth condition is met, the transmit power of the second uplink channel / second uplink signal is determined based on the target receive power, the first downlink reference signal, and the first offset, wherein the fourth condition includes at least one of the following: the system information does not include configuration information of the downlink reference signal in the second frequency domain resource group; the system information includes information related to the downlink reference signal in the second frequency domain resource group not being activated; the UE is not configured with the downlink reference signal in the second frequency domain resource group; the UE is not configured with the activation of the downlink reference signal in the second frequency domain resource group.

[0037] According to embodiments of this disclosure, the method further includes: transmitting a first parameter in the first frequency domain resource group, wherein, if a fifth condition is met, the first parameter indicates the target received power of the second uplink channel / second uplink signal; and wherein, if a sixth condition is met, the first parameter indicates information related to the first offset, wherein the fifth condition includes at least one of the following: the system information includes configuration information of downlink reference signals in the second frequency domain resource group; the system information includes information related to the activation of downlink reference signals in the second frequency domain resource group; the UE is configured with downlink reference signals in the second frequency domain resource group; the UE is configured to activate downlink reference signals in the second frequency domain resource group; wherein the sixth condition includes at least one of the following: the system information does not include configuration information of downlink reference signals in the second frequency domain resource group; the system information includes information related to the non-activation of downlink reference signals in the second frequency domain resource group; the UE is not configured with downlink reference signals in the second frequency domain resource group; the UE is not configured to activate downlink reference signals in the second frequency domain resource group; the UE is configured to not activate downlink reference signals in the second frequency domain resource group.

[0038] Embodiments of this disclosure provide a method performed by a user equipment (UE) in a wireless communication system, comprising: receiving a first downlink reference signal and system information in a first frequency domain resource group, wherein the system information includes a target received power and a first offset of a first uplink channel / first uplink signal in the first frequency domain resource group; receiving a ninth downlink channel / ninth downlink signal in the first frequency domain resource group, wherein the ninth downlink channel / ninth downlink signal indicates a second offset; and transmitting a ninth uplink channel / ninth uplink signal in a second frequency domain resource group, wherein the start time of the ninth uplink channel / ninth uplink signal is... If the start time of the ninth uplink channel / ninth uplink signal is earlier than t2 time units after the end time unit of the ninth downlink channel / ninth uplink signal, the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the first offset. If the start time unit of the ninth uplink channel / ninth uplink signal is not earlier than t2 time units after the end time unit of the ninth downlink channel / ninth uplink signal, the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the first offset and the second offset, or the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the second offset.

[0039] Embodiments of this disclosure provide a method performed by a base station in a wireless communication system, comprising:

[0040] The system transmits a first downlink reference signal and system information in a first frequency domain resource group, wherein the system information includes a target received power and a first offset for a first uplink channel / first uplink signal in the first frequency domain resource group; transmits a ninth downlink channel / ninth downlink signal in the first frequency domain resource group, wherein the ninth downlink channel / ninth downlink signal indicates a second offset; and receives a ninth uplink channel / ninth uplink signal in a second frequency domain resource group, wherein, if the start time unit of the ninth uplink channel / ninth uplink signal is earlier than t2 time units after the end time unit of the ninth downlink channel / ninth downlink signal, the transmit power of the ninth uplink channel / ninth uplink signal is determined based on the first offset, and wherein, if the start time unit of the ninth uplink channel / ninth uplink signal is not earlier than t2 time units after the end time unit of the ninth downlink channel / ninth downlink signal, the transmit power of the ninth uplink channel / ninth uplink signal is determined based on the first offset and the second offset, or, the transmit power of the ninth uplink channel / ninth uplink signal is determined based on the second offset.

[0041] Embodiments of this disclosure provide a user equipment (UE) in a wireless communication system, including: a transceiver configured to transmit and receive signals; and a controller coupled to the transceiver and configured to perform any method performed by the UE in the wireless communication system according to embodiments of this disclosure.

[0042] Embodiments of this disclosure provide a base station in a wireless communication system, including: a transceiver configured to transmit and receive signals; and a controller coupled to the transceiver and configured to perform any method performed by the base station in the wireless communication system according to embodiments of this disclosure.

[0043] Embodiments of this disclosure provide a computer-readable medium having computer-readable instructions stored thereon, which, when executed by a processor, implement any method performed by a user equipment (UE) and / or a base station in a wireless communication system according to embodiments of this disclosure.

[0044] The method provided in this disclosure, performed by a user equipment (UE) and / or a base station in a wireless communication system, improves spectral efficiency by enabling uplink power control of multiple frequency domain resource groups using fewer bits through the exchange of information related to the transmission power of the uplink channel / uplink signal between the UE and the base station. Attached Figure Description

[0045] The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, wherein:

[0046] Figure 1 Example wireless networks according to various embodiments of this disclosure are shown;

[0047] Figure 2a and Figure 2b An example wireless transmission and reception path according to this disclosure is shown;

[0048] Figure 3a An example UE according to this disclosure is shown;

[0049] Figure 3b An example gNB according to this disclosure is shown;

[0050] Figure 4 A schematic diagram of a frequency domain resource group according to an embodiment of the present disclosure is shown;

[0051] Figure 5 A schematic diagram of a virtual carrier according to an embodiment of the present disclosure is shown;

[0052] Figure 6 An example method performed by a UE in a wireless communication system according to an embodiment of this disclosure is shown;

[0053] Figure 7 A schematic diagram of signals is shown, illustrating an example method performed by a UE in a wireless communication system according to an embodiment of the present disclosure;

[0054] Figure 8 A schematic diagram of a method for determining the transmit power of an uplink channel / uplink signal according to an embodiment of the present disclosure is shown;

[0055] Figure 9 This illustrates a case where the transmit power of the uplink channel / uplink signal in a plurality of second frequency domain resource groups is determined by a plurality of first offsets according to an embodiment of the present disclosure;

[0056] Figure 10 An example UE behavior according to an embodiment of this disclosure is shown;

[0057] Figure 11 An example process according to an embodiment of this disclosure is shown;

[0058] Figure 12 An example association between the time-domain resources of an uplink reference signal and the time-domain resources of an uplink signal is shown according to an embodiment of the present disclosure;

[0059] Figures 13a-13d Another example association between the time-domain resources of an uplink reference signal and the time-domain resources of an uplink signal is shown according to an embodiment of the present disclosure;

[0060] Figure 14 and Figure 15 An example of receiving and applying a second offset according to an embodiment of this disclosure is shown;

[0061] Figure 16 An example of time-domain resources for transmitting an uplink reference signal according to an embodiment of this disclosure is shown;

[0062] Figure 17 An example of time-domain resources for receiving downlink signals according to an embodiment of this disclosure is shown;

[0063] Figure 18 Example behavior of a UE after receiving a downlink signal according to an embodiment of this disclosure is shown;

[0064] Figures 19a-19c An example of a second timer according to an embodiment of this disclosure is shown;

[0065] Figures 20a-20d An example of the actual transmit power of a UE transmitting an uplink signal according to an embodiment of this disclosure is shown;

[0066] Figures 21a-21d An example scenario for determining power control priority according to an embodiment of this disclosure is shown;

[0067] Figure 22a An example method performed by a UE in a wireless communication system according to an embodiment of this disclosure is shown;

[0068] Figure 22b A schematic diagram of signals is shown, illustrating an example method performed by a UE in a wireless communication system according to an embodiment of the present disclosure;

[0069] Figures 23a-23c An example scenario for requesting a downlink reference signal according to an embodiment of this disclosure is shown;

[0070] Figures 24a-24g A schematic diagram of the time-domain resources of a downlink reference signal according to an embodiment of the present disclosure is shown;

[0071] Figure 25 A schematic diagram of the frequency domain resources of a downlink reference signal according to an embodiment of the present disclosure is shown;

[0072] Figure 26 Example behavior is shown in the case where the UE does not receive DLRS according to an embodiment of this disclosure;

[0073] Figure 27a and Figure 27b An example scenario is shown where a downlink signal in a second frequency domain resource group indicates a PRACH resource according to an embodiment of this disclosure;

[0074] Figure 28a and Figure 28b A flowchart is shown showing a method performed by a user equipment (UE) in a wireless communication system according to an embodiment of the present disclosure;

[0075] Figure 29a and Figure 29b A flowchart is shown showing a method performed by a base station in a wireless communication system according to an embodiment of the present disclosure;

[0076] Figure 30 A schematic diagram of a user equipment (UE) in a wireless communication system according to an embodiment of the present disclosure is shown; and

[0077] Figure 31 A schematic diagram of a base station in a wireless communication system according to an embodiment of the present disclosure is shown. Detailed Implementation

[0078] The following description, with reference to the accompanying drawings, is provided to aid in a thorough understanding of the various embodiments of this disclosure as defined by the claims and their equivalents. This description includes various specific details to aid understanding but should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of this disclosure. Furthermore, for clarity and brevity, descriptions of well-known functions and structures may be omitted.

[0079] The terms and wording used in the following description and claims are not limited to their dictionary meanings, but are merely used by the inventors to enable a clear and consistent understanding of this disclosure. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this disclosure is for illustrative purposes only and not for limiting the purpose of this disclosure as defined in the appended claims and their equivalents.

[0080] It should be understood that the singular forms of “one,” “an,” and “the” include plural references unless the context clearly indicates otherwise. Thus, for example, the reference to “component surface” includes one or more such surfaces.

[0081] The terms “comprising” or “may include” refer to the presence of a corresponding disclosed function, operation, or component that may be used in the various embodiments of this disclosure, rather than limiting the presence of one or more additional functions, operations, or features. Furthermore, the terms “comprising” or “having” may be interpreted as indicating certain characteristics, numbers, steps, operations, constituent elements, components, or combinations thereof, but should not be construed as excluding the possibility of the presence of one or more other characteristics, numbers, steps, operations, constituent elements, components, or combinations thereof.

[0082] The term "or" as used in the various embodiments of this disclosure includes any of the listed terms and all combinations thereof. For example, "A or B" may include A, may include B, or may include both A and B.

[0083] Unless otherwise defined, all terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of those skilled in the art as described herein. Common terms as defined in dictionaries are to be interpreted as having a meaning consistent with the context in the relevant technical field and should not be interpreted ideally or overly formally unless expressly defined in this disclosure.

[0084] The various embodiments of this disclosure can be applied to various communication systems, such as: Global System for Mobile Communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, Frequency Division Duplex (FDD) systems, Time Division Duplex (TDD) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, 5th Generation (5G) systems, or New Radio (NR), etc. Furthermore, the various embodiments of this disclosure can be applied to future-oriented communication technologies.

[0085] Figure 1 An example wireless network 100 according to various embodiments of the present disclosure is shown. Figure 1 The embodiment of the wireless network 100 shown is for illustrative purposes only. Other embodiments of the wireless network 100 can be used without departing from the scope of this disclosure.

[0086] Wireless network 100 includes gNodeB (gNB) 101, gNB 102, and gNB 103. gNB 101 communicates with gNB 102 and gNB 103. gNB 101 also communicates with at least one Internet Protocol (IP) network 130 (such as the Internet, a proprietary IP network, or other data network).

[0087] Depending on the network type, other well-known terms such as "base station" or "access point" can be used instead of "gNodeB" or "gNB". For convenience, the terms "gNodeB" and "gNB" are used in this patent document to refer to network infrastructure components that provide wireless access for remote terminals. Furthermore, depending on the network type, other well-known terms such as "mobile station", "user station", "remote terminal", "wireless terminal", or "user device" can be used instead of "user equipment" or "UE". For convenience, the terms "user equipment" and "UE" are used in this patent document to refer to remote wireless devices that wirelessly access the gNB, whether the UE is a mobile device (such as a mobile phone or smartphone) or a fixed device as commonly understood (such as a desktop computer or vending machine).

[0088] gNB 102 provides wireless broadband access to network 130 to multiple first user equipments (UEs) within its coverage area 120. The multiple first UEs include: UE 111, which may be located in a small business (SB); UE 112, which may be located in an enterprise (E); UE 113, which may be located in a WiFi hotspot (HS); UE 114, which may be located in a first residence (R); UE 115, which may be located in a second residence (R); and UE 116, which may be a mobile device (M), such as a cellular phone, wireless laptop computer, wireless PDA, etc. gNB 103 provides wireless broadband access to network 130 to multiple second UEs within its coverage area 125. The multiple second UEs include UE 115 and UE 116. In some embodiments, one or more of gNBs 101-103 are capable of communicating with each other and with UEs 111-116 using 5G, LTE, LTE-A, WiMAX, or other advanced wireless communication technologies.

[0089] The dashed lines indicate the approximate extent of coverage areas 120 and 125, which are shown as approximately circular for illustrative and explanatory purposes only. It should be clearly understood that coverage areas associated with the gNB, such as coverage areas 120 and 125, can have other shapes, including irregular shapes, depending on the configuration of the gNB and variations in the radio environment associated with natural and man-made obstacles.

[0090] As described in more detail below, one or more of gNB 101, gNB 102, and gNB 103 include a 2D antenna array as described in embodiments of this disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 support codebook design and architecture for systems having 2D antenna arrays.

[0091] although Figure 1 An example of a wireless network 100 is shown, but it is possible to... Figure 1 Various modifications can be made. For example, wireless network 100 can include any number of gNBs and any number of UEs in any suitable arrangement. Furthermore, gNB 101 can communicate directly with any number of UEs and provide those UEs with wireless broadband access to network 130. Similarly, each gNB 102-103 can communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. In addition, gNBs 101, 102, and / or 103 can provide access to other or additional external networks (such as external telephone networks or other types of data networks).

[0092] Figure 2a and Figure 2b Example wireless transmit and receive paths according to this disclosure are shown. In the following description, transmit path 200 can be described as being implemented in a gNB (such as gNB 102), while receive path 250 can be described as being implemented in a UE (such as UE 116). However, it should be understood that receive path 250 can be implemented in a gNB, and transmit path 200 can be implemented in a UE. In some embodiments, receive path 250 is configured to support codebook design and structure for a system having a 2D antenna array as described in embodiments of this disclosure.

[0093] The transmit path 200 includes a channel coding and modulation block 205, a serial-to-parallel (S-to-P) block 210, an N-point inverse fast Fourier transform (IFFT) block 215, a parallel-to-serial (P-to-S) block 220, a cyclic prefix addition block 225, and an up-converter (UC) 230. The receive path 250 includes a down-converter (DC) 255, a cyclic prefix removal block 260, a serial-to-parallel (S-to-P) block 265, an N-point fast Fourier transform (FFT) block 270, a parallel-to-serial (P-to-S) block 275, and a channel decoding and demodulation block 280.

[0094] In transmit path 200, channel coding and modulation block 205 receives a set of information bits, applies coding (such as low-density parity-check (LDPC) coding), and modulates the input bits (such as using quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM)) to generate a sequence of frequency-domain modulated symbols. Serial-to-parallel (S-to-P) block 210 converts (e.g., demultiplexes) the serial modulated symbols into parallel data to generate N parallel symbol streams, where N is the number of IFFT / FFT points used in gNB 102 and UE 116. N-point IFFT block 215 performs IFFT operations on the N parallel symbol streams to generate a time-domain output signal. Parallel-to-serial block 220 converts (e.g., multiplexes) the parallel time-domain output symbols from N-point IFFT block 215 to generate a serial time-domain signal. Cyclic prefix addition block 225 inserts a cyclic prefix into the time-domain signal. Upconverter 230 modulates (e.g., upconverts) the output of the added cyclic prefix block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at the baseband before being converted to the RF frequency.

[0095] The RF signal transmitted from gNB 102 reaches UE 116 after passing through the wireless channel, and UE 116 performs the opposite operation to that at gNB 102. Downconverter 255 downconverts the received signal to the baseband frequency, and cyclic prefix removal block 260 removes the cyclic prefix to generate a serial time-domain baseband signal. Serial-to-parallel block 265 converts the time-domain baseband signal into a parallel time-domain signal. N-point FFT block 270 performs an FFT algorithm to generate N parallel frequency-domain signals. Parallel-to-serial block 275 converts the parallel frequency-domain signals into a sequence of modulated data symbols. Channel decoding and demodulation block 280 demodulates and decodes the modulated symbols to recover the original input data stream.

[0096] Each of gNBs 101-103 can implement a transmission path 200 similar to that used for transmission to UEs 111-116 in the downlink, and a reception path 250 similar to that used for reception from UEs 111-116 in the uplink. Similarly, each of UEs 111-116 can implement a transmission path 200 for transmission to gNBs 101-103 in the uplink, and a reception path 250 for reception from gNBs 101-103 in the downlink.

[0097] Figure 2a and Figure 2b Each of the components can be implemented using only hardware, or using a combination of hardware and software / firmware. As a specific example, Figure 2a and Figure 2bAt least some of the components can be implemented in software, while others can be implemented in configurable hardware or a combination of software and configurable hardware. For example, FFT block 270 and IFFT block 215 can be implemented as configurable software algorithms, wherein the value of the number of points N can be modified according to the implementation method.

[0098] Furthermore, although the description uses FFT and IFFT, this is merely illustrative and should not be construed as limiting the scope of this disclosure. Other types of transforms, such as the Discrete Fourier Transform (DFT) and Inverse Discrete Fourier Transform (IDFT) functions, can be used. It should be understood that for DFT and IDFT functions, the value of variable N can be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of variable N can be any integer that is a power of 2 (such as 1, 2, 4, 8, 16, etc.).

[0099] although Figure 2a and Figure 2b An example of a wireless transmit and receive path is shown, but it is possible to modify it further. Figure 2a and Figure 2b Make various changes. For example, Figure 2a and Figure 2b The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. Furthermore, Figure 2a and Figure 2b This is intended to illustrate examples of the types of send and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communication in a wireless network.

[0100] Figure 3a Example UE 116 according to this disclosure is shown. Figure 3a The embodiment of UE 116 shown is for illustrative purposes only, and Figure 1 UEs 111-115 can have the same or similar configurations. However, UEs have a wide variety of configurations, and Figure 3a This disclosure is not intended to limit the scope of any particular implementation of the UE.

[0101] UE 116 includes an antenna 301, a radio frequency (RF) transceiver 302, a transmit (TX) processing circuitry 303, a microphone 304, and a receive (RX) processing circuitry 305. UE 116 also includes a speaker 306, a controller / processor 307, an input / output (I / O) interface 308, multiple input devices 309, a display 310, and a memory 311. The memory 311 includes an operating system (OS) 312 and one or more applications 313.

[0102] RF transceiver 302 receives incoming RF signals transmitted by a gNB of wireless network 100 from antenna 301. RF transceiver 302 down-converts the incoming RF signals to generate an intermediate frequency (IF) or baseband signal. The IF or baseband signal is sent to RX processing circuitry 305, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. RX processing circuitry 305 sends the processed baseband signal to speaker 306 (e.g., for voice data) or to controller / processor 307 (e.g., for web browsing data) for further processing.

[0103] TX processing circuitry 303 receives analog or digital voice data from microphone 304, or other outgoing baseband data (such as network data, email, or interactive video game data) from controller / processor 307. TX processing circuitry 303 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate processed baseband or IF signals. RF transceiver 302 receives the processed baseband or IF signals from TX processing circuitry 303 and up-converts the baseband or IF signals into RF signals transmitted via antenna 301.

[0104] The controller / processor 307 may include one or more processors or other processing devices and execute an OS 312 stored in memory 311 to control the overall operation of the UE 116. For example, the controller / processor 307 may control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceiver 302, the RX processing circuit 305, and the TX processing circuit 303 according to known principles. In some embodiments, the controller / processor 307 includes at least one microprocessor or microcontroller.

[0105] The controller / processor 307 is also capable of executing other processes and programs residing in the memory 311, such as operations for channel quality measurement and reporting for a system having a 2D antenna array as described in the embodiments of this disclosure. The controller / processor 307 is capable of moving data into or out of the memory 311 as needed for the execution of the process. In some embodiments, the controller / processor 307 is configured to execute an application 313 based on the OS 312 or in response to signals received from a gNB or operator. The controller / processor 307 is also coupled to an I / O interface IF 308, which provides the UE 116 with the ability to connect to other devices such as laptop computers and handheld computers. The I / O interface 308 is the communication path between these accessories and the controller / processor 307.

[0106] The controller / processor 307 is also coupled to input devices(s) 309 and a display 310. An operator of the UE 116 can use the input devices(s) 309 to input data into the UE 116. The display 310 may be a liquid crystal display or another display capable of displaying text and / or at least limited graphics (such as from a website). Memory 311 is coupled to the controller / processor 307. A portion of memory 311 may include random access memory (RAM), while another portion of memory 311 may include flash memory or other read-only memory (ROM).

[0107] although Figure 3a An example of UE 116 is shown, but it is possible to... Figure 3a Make various changes. For example, Figure 3a The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. As a specific example, the controller / processor 307 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Furthermore, although... Figure 3a The UE116 is shown configured as a mobile phone or smartphone, but the UE can be configured to operate as other types of mobile or fixed devices.

[0108] Figure 3b An example gNB 102 according to this disclosure is shown. Figure 3b The embodiment of gNB 102 shown is for illustrative purposes only, and Figure 1 Other gNBs can have the same or similar configurations. However, gNBs have a wide variety of configurations, and Figure 3b The scope of this disclosure is not limited to any particular implementation of the gNB. It should be noted that gNB 101 and gNB 103 can include the same or similar structures as gNB 102.

[0109] like Figure 3b As shown, gNB 102 includes multiple antennas 370a-370n, multiple RF transceivers 372a-372n, transmit (TX) processing circuitry 374, and receive (RX) processing circuitry 376. In some embodiments, one or more of the multiple antennas 370a-370n include a 2D antenna array. gNB 102 also includes a controller / processor 378, a memory 380, and a backhaul or network interface 382.

[0110] RF transceivers 372a-372n receive incoming RF signals, such as signals transmitted by the UE or other gNBs, from antennas 370a-370n. RF transceivers 372a-372n down-convert the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to RX processing circuitry 376, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. RX processing circuitry 376 sends the processed baseband signals to controller / processor 378 for further processing.

[0111] The TX processing circuit 374 receives analog or digital data (such as voice data, network data, email, or interactive video game data) from the controller / processor 378. The TX processing circuit 374 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceivers 372a-372n receive the outgoing processed baseband or IF signal from the TX processing circuit 374 and up-convert the baseband or IF signal into an RF signal transmitted via antennas 370a-370n.

[0112] The controller / processor 378 may include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 378 may control the reception of forward channel signals and the transmission of reverse channel signals via RF transceivers 372a-372n, RX processing circuitry 376, and TX processing circuitry 374, according to known principles. The controller / processor 378 may also support additional functions, such as more advanced wireless communication functions. For example, the controller / processor 378 may perform a BIS process, such as by a blind interference sensing (BIS) algorithm, and decode the received signal after subtracting interference. The controller / processor 378 may support any of a wide variety of other functions in the gNB 102. In some embodiments, the controller / processor 378 includes at least one microprocessor or microcontroller.

[0113] The controller / processor 378 is also capable of executing programs and other processes, such as a basic operating system, residing in the memory 380. The controller / processor 378 is also capable of supporting channel quality measurement and reporting for systems having 2D antenna arrays as described in embodiments of this disclosure. In some embodiments, the controller / processor 378 supports communication between entities such as web RTCs. The controller / processor 378 is capable of moving data into or out of the memory 380 as needed for the execution of processes.

[0114] The controller / processor 378 is also coupled to a backhaul or network interface 382. The backhaul or network interface 382 allows the gNB 102 to communicate with other devices or systems via a backhaul connection or over a network. The backhaul or network interface 382 is capable of supporting communication via any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as a cellular communication system supporting 5G or new radio access technologies or NR, LTE, or LTE-A), the backhaul or network interface 382 allows the gNB 102 to communicate with other gNBs via a wired or wireless backhaul connection. When the gNB 102 is implemented as an access point, the backhaul or network interface 382 allows the gNB 102 to communicate with a larger network (such as the Internet) via a wired or wireless local area network or via a wired or wireless connection. The backhaul or network interface 382 includes any suitable architecture supporting communication via a wired or wireless connection, such as an Ethernet or RF transceiver.

[0115] Memory 380 is coupled to controller / processor 378. A portion of memory 380 may include RAM, while another portion may include flash memory or other ROM. In some embodiments, multiple instructions, such as a BIS algorithm, are stored in memory. The multiple instructions are configured to cause controller / processor 378 to perform the BIS process and decode the received signal after subtracting at least one interference signal determined by the BIS algorithm.

[0116] As described in more detail below, the transmit and receive paths of the gNB 102 (implemented using RF transceivers 372a-372n, TX processing circuitry 374, and / or RX processing circuitry 376) support aggregated communication with FDD and TDD cells.

[0117] although Figure 3b An example of gNB 102 is shown, but it is possible to compare it with other models. Figure 3b Various modifications can be made. For example, gNB102 can include any number of... Figure 3a Each component shown. As a specific example, an access point can include multiple backhaul or network interfaces 382, ​​and a controller / processor 378 can support routing functions to route data between different network addresses. As another specific example, although shown as a single instance including TX processing circuitry 374 and a single instance including RX processing circuitry 376, the gNB 102 can include multiple instances of each (such as one for each RF transceiver).

[0118] Exemplary embodiments of this disclosure are further described below with reference to the accompanying drawings.

[0119] The text and accompanying drawings are provided by way of example only to aid the reader in understanding this disclosure. They are not intended and should not be construed as limiting the scope of this disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art, based on the content disclosed herein, that changes may be made to the illustrated embodiments and examples without departing from the scope of this disclosure.

[0120] Transmissions in a wireless communication system may include: transmissions from a base station (e.g., gNB) to a user equipment (UE) (referred to as downlink transmissions), with the corresponding time slots called downlink time slots; and transmissions from the UE to the base station (referred to as uplink transmissions), with the corresponding time slots called uplink time slots.

[0121] In downlink communication of a wireless communication system, the system periodically sends synchronization signals and broadcast channels to users through synchronization signal blocks (SSBs, PBCH blocks). This period can be called the synchronization signal block period (SSB periodicity) or the synchronization signal block group period (SSB burstperiodicity). Simultaneously, the base station configures a physical random access channel configuration period (PRACH configuration period), and within this period, configures a certain number of physical random access channel transmission occasions (ROs). These configured ROs are evaluated according to certain validity rules to obtain valid ROs; and they satisfy the condition that all SSBs can be mapped to their corresponding valid ROs within the association period (e.g., a certain time length). In an SSB-to-RO mapping cycle, all SSBs within an SSB period are mapped to the required random access resources. A mapping period can include one or more mapping cycles. An association pattern period for SSB to RO can include one or more association patterns, and the SSB to RO association pattern in each association pattern period can be the same.

[0122] In New Radio (NR) communication systems, the performance of random access directly impacts user experience before radio resource control is established, such as during the random access process. In traditional wireless communication systems, such as LTE and LTE-Advanced, or in 5G or NR systems, the random access process is applied in various scenarios, including establishing initial connections, cell handover, re-establishing uplink connections, and RRC connection reconstruction. It is classified into contention-based random access and contention-free random access based on whether the user has exclusive access to the preamble resource. In contention-based random access, each user selects a preamble from the same preamble resource during the uplink connection establishment process.

[0123] In this disclosure, the preamble may also be referred to as the preamble sequence, or simply as the sequence.

[0124] In this disclosure, random access opportunity (RO) may refer to the resource or timing used to send the random access preamble.

[0125] In this disclosure, a "frequency domain resource group" refers to a continuous segment of spectrum resources (or frequency domain resources). A UE can transmit or receive physical channels and / or physical signals on a frequency domain resource group. In essence, a frequency domain resource group is a continuous segment of spectrum resources that a UE can use to transmit or receive signals.

[0126] Figure 4 A schematic diagram of a frequency domain resource group according to an embodiment of the present disclosure is shown. Figure 4 As shown, the first frequency domain resource group has a bandwidth of X MHz, which may include X0 subcarriers; the second frequency domain resource group has a bandwidth of Y MHz, which may include Y0 subcarriers. In some embodiments, there may be a certain interval, for example, Z MHz, between the highest index subcarrier of the first frequency domain resource group and the lowest index subcarrier of the second frequency domain resource group. In some embodiments, the highest index subcarrier of the first frequency domain resource group and the lowest index subcarrier of the second frequency domain resource group may be consecutive.

[0127] In this disclosure, the frequency domain resource group can also be equivalently replaced by one of the following: carrier, bandwidth part, carrier segment, or carrier segment.

[0128] In this disclosure, the first frequency domain resource group may include a first uplink frequency domain resource group and / or a first downlink frequency domain resource group, and the second frequency domain resource group may include a second uplink frequency domain resource group and / or a second downlink frequency domain resource group. In the following text, for ease of description, the first uplink frequency domain resource group and / or the first downlink frequency domain resource group may be simply referred to as the first frequency domain resource group, and the second uplink frequency domain resource group and / or the second downlink frequency domain resource group may be simply referred to as the second frequency domain resource group.

[0129] In mobile communication systems, a single operator typically possesses multiple available contiguous spectrum bands, and the bandwidth of contiguous spectrum in the Sub-3GHz band (especially the Sub-1GHz band) is generally small. In the Sub-3GHz spectrum, 95% of the contiguous 1.4–2.6GHz FDD (Frequency Division Duplex) spectrum has a bandwidth of no more than 30MHz, and 90% of operators own more than one 1.4–2.6GHz FDD band. Similarly, the Sub-1GHz spectrum (e.g., 700 / 800 / 900MHz) faces the same issue. 93% of the contiguous sub-1GHz FDD spectrum has a bandwidth of no more than 15MHz, and 71% of operators own more than one sub-1GHz FDD band. Although these FDD bands are not contiguously distributed in the spectrum, the aggregated bandwidth formed by combining these bands is still considerable. Aggregated FDD carriers can provide similar DL (Downlink) bandwidth and 2.4 times the UL (Uplink) bandwidth as C-band TDD (Time Division Duplex) carriers. More importantly, the sub-3GHz spectrum offers coverage advantages. In addition to the aforementioned FDD bands, there are several Supplementary Uplink (SUL) bands in the Sub-3GHz band (e.g., n97, n98, n95) that can be used to improve operators' UL coverage and capacity. In the future, operators will deploy more sub-3GHz spectrum to meet the growing demands of both ToB (To Business) and ToC (To Customer) scenarios. Furthermore, as more spectrum is allocated for mobile communications, operators will deploy more spectrum across various frequency bands to meet the increasing demand for data rates.

[0130] Figure 5 A schematic diagram of a virtual carrier according to an embodiment of the present disclosure is shown.

[0131] like Figure 5As shown, four frequency domain resource groups with bandwidths of 5MHz, 10MHz, 20MHz, and 15MHz can constitute a virtual carrier with a bandwidth of 50MHz. These four frequency domain resource groups can belong to different frequency bands. Figure 5 It can be seen that a virtual carrier can be formed by aggregating multiple frequency domain resource groups with discontinuous frequencies, and the bandwidth of a virtual carrier can be the sum of the bandwidths of the multiple frequency domain resource groups that constitute the virtual carrier.

[0132] Furthermore, the multiple frequency domain resource groups constituting the virtual carrier may contain spectrum allocated to different communication systems. For example, one of these frequency domain resource groups may be spectrum belonging to a 6G system, while another frequency domain resource group may be spectrum originally belonging to a 5G system but reassigned to a 6G system.

[0133] Among the multiple frequency domain resource groups constituting a virtual carrier, the frequency domain resource group used for transmitting SSB and SIB1 (System Information Block 1) can be called the primary frequency domain resource group or the first frequency domain resource group, while the other frequency domain resource groups are called secondary frequency domain resource groups or the second frequency domain resource group. When multiple secondary frequency domain resource groups exist, these multiple secondary frequency domain resource groups can also be called the second frequency domain resource group, the third frequency domain resource group, the fourth frequency domain resource group, and so on.

[0134] Besides the aforementioned method of using virtual carriers to utilize multiple frequency domain resources, carrier aggregation can also be used. That is, the network deploys one cell on each carrier segment. To facilitate network management and scheduling of UEs, it is desirable that idle UEs camp on a designated carrier, transmitting SSB and SIB1 only on one of the multiple carriers, while the other carriers serve as secondary cells to provide services to the UE.

[0135] In another scenario, multiple carriers (frequency domain resource groups) can be deployed within a serving cell. These carriers can have different functions; for example, one of the carriers can be referred to as the anchor carrier. The anchor carrier can have at least one of the following functions:

[0136] (1) Provide initial synchronization and basic system information transmission for UEs within the cell. For example, at least one or more of the following should be periodically transmitted on the downlink anchor carrier: a synchronization signal (SS), a physical broadcast channel, and a first system information block. The synchronization signal may include a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). For example, the downlink anchor carrier should at least be used to transmit the SSB and SIB1 for defining the cell (CD).

[0137] (2) Provide initial random access functionality for UEs within the cell. For example, the cell-common physical random access channel resources should be configured on the uplink anchor carrier.

[0138] (3) Provide mobility management functions for UEs within the cell. For example, the UE performs measurements for radio resource management (RRM) purposes based only on reference signals (such as SSB and / or CSI-RS) on the downlink anchor carrier, without having to perform RRM measurements on other carriers.

[0139] To achieve the above functions, anchor carriers generally operate at lower frequencies than other carriers, resulting in a wider coverage area. Furthermore, anchor carriers can provide basic data transmission capabilities for UEs within the cell; however, due to their typically smaller bandwidth, the peak data transmission rate is lower.

[0140] A carrier other than the anchor carrier can serve as a supplement to the anchor carrier and is therefore called a supplementary carrier. For a supplementary downlink (SDL), the SDL is mainly used to supplement data transmission services, such as providing data transmission services with a higher peak rate than the anchor carrier. For a supplementary uplink (SUL), the SUL is used to supplement data transmission services and / or to supplement coverage, such as providing data transmission services with a higher peak rate than the anchor carrier and / or providing wider coverage than the anchor carrier.

[0141] In this disclosure, the anchor carrier may also be referred to as the primary carrier, or other technical terms such as ordinary carrier, and may correspond to the first frequency domain resource group mentioned above; the supplementary carrier may also be referred to as the secondary carrier, data carrier, or other technical terms, and may correspond to the second frequency domain resource group mentioned above.

[0142] Furthermore, some operators' available spectrum does not match the channel bandwidth specified by the NR system. For example, in the n5 band, operators have channel bandwidths of 7MHz and 11MHz, which do not conform to the NR system's specified channel bandwidths of 5MHz and 10MHz. Using an overlapping CA (Carrier Aggregation) scheme can support the use of irregular spectrum without introducing new dedicated channel bandwidth for the UE and BS. From the network perspective, the BS supports in-band overlapping CA, while the UE only supports a single CC (Component Carrier) with existing channel bandwidth. From the UE perspective, both the BS and UE support in-band overlapping CA using all RBs (Resource Blocks), and the UE also supports combining in-band non-contiguous CAs. This approach can be applied to irregular channel bandwidths of various sizes without requiring the definition of new channel filters to be designed and tested for the BS and UE.

[0143] Optionally, the first downlink frequency domain resource group and the second downlink frequency domain resource group can be contiguous. The first downlink frequency domain resource group and the second downlink frequency domain resource group can belong to different cells, and there can be at least one overlapping frequency domain resource element between them. Alternatively, the first downlink frequency domain resource group and the second downlink frequency domain resource group can belong to the same cell, and the UE uses two sets of filters to receive the first downlink frequency domain resource group and the second downlink frequency domain resource group respectively. This requires the UE to have specific capabilities, such as the ability to use two sets of filters simultaneously.

[0144] Based on the scenarios described above, when an operator has multiple consecutive spectrum resources available, they can use them as a single cell by deploying one or more consecutive spectrum resources on each spectrum segment. The physical meaning of consecutive spectrum resources is a set, which can include N0 consecutive resource elements or resource blocks in the frequency domain, where each resource element is an OFDM subcarrier. A resource block can include a certain number of consecutive resource elements. Optionally, a resource block can contain 12 consecutive resource elements. Resource blocks can also be common resource blocks, physical resource blocks, virtual resource blocks, etc. The reference position of the index of a common resource block (or, physical resource block, or virtual resource block) can be the minimum index subcarrier of a frequency domain resource group, a predefined or configured frequency domain reference point, or the minimum index subcarrier of other frequency domain resource groups.

[0145] When a cell has multiple frequency domain resource groups, for a UE in an idle / inactive state, system information (such as SSB, SIB, RMSI (Remaining Minimum System Information), and OSI (Other System Information)) and paging of the serving cell can only be broadcast in one of the multiple downlink frequency domain resource groups within the serving cell. System information can include the necessary information for each frequency domain resource group (such as frequency, bandwidth, SCS (Sub-Carrier Spacing), RACH (Random Access Channel) resources, etc.). Therefore, the UE can obtain information from all frequency domain resource groups and access all frequency domain resource groups.

[0146] In one alternative implementation, the UE may receive SSB and system information in the first (or anchored) downlink frequency domain resource group and may perform initial access in the first (or anchored) uplink frequency domain resource group.

[0147] In this disclosure, a frequency domain resource unit (also referred to as a frequency resource unit, frequency domain unit, or frequency unit) can be: a subcarrier, a subcarrier group (composed of multiple subcarriers), a resource block (RB), also referred to as a physical resource block (PRB), a resource block group (composed of multiple RBs), a band portion (BWP), a band portion group (composed of multiple BWPs), a band / carrier, or a band group / carrier group; it can also be an absolute frequency domain unit, such as 1 Hz, 1 kHz, etc.; the frequency domain unit can also be a combination of multiple granularities, such as M1 PRBs plus M2 subcarriers, etc.

[0148] In this disclosure, a time-domain resource unit (also referred to as a time resource unit, time-domain unit, or time unit) can be: an OFDM symbol, an OFDM symbol group (composed of multiple OFDM symbols), a slot, a slot group (composed of multiple slots), a subframe, a subframe group (composed of multiple subframes), a system frame, or a system frame group (composed of multiple system frames); it can also be an absolute time unit, such as 1 millisecond, 1 second, etc.; the time unit can also be a combination of multiple granularities, such as N1 slots plus N2 OFDM symbols, etc. It can also be the duration of an OOK (On-Off Keying) chip.

[0149] In this disclosure, the Physical Downlink Control Channel (PDCCH) can be used to schedule DL transmissions on the Physical Downlink Shared Channel (PDSCH) and UL transmissions on the Physical Uplink Shared Channel (PUSCH), wherein the Downlink Control Information (DCI) on the PDCCH may include:

[0150] - Downlink allocation, which includes at least modulation and coding formats, resource allocation, and hybrid ARQ information related to DL-SCH;

[0151] - Uplink scheduling permission, which includes at least modulation and coding formats, resource allocation, and hybrid ARQ information related to UL-SCH.

[0152] Besides scheduling, PDCCH can also be used for:

[0153] - Activate and deactivate configured PUSCH transports using the configured authorization;

[0154] - Activation and deactivation of PDSCH semi-persistent transport;

[0155] - Notify one or more UEs of their slot format;

[0156] - Notify one or more UEs of the PRB and OFDM symbols, where the UEs may assume that no transmission is directed to the UE;

[0157] - Transmit TPC commands for PUCCH and PUSCH;

[0158] - One or more TPC commands for SRS transmission are sent by one or more UEs;

[0159] - Switch the active bandwidth portion of the UE;

[0160] - Initiate the random access procedure;

[0161] - Instruct the UE to monitor the PDCCH during the next DRX on duration;

[0162] - In the context of Integrated Access and Backhaul (IAB), indicate the availability of soft symbols for IAB-DU;

[0163] - Trigger a single HARQ-ACK codebook feedback;

[0164] - Operations for shared spectrum channel access include at least one of the following:

[0165] - Triggers a switch in the search space set group;

[0166] - Indicate the available RB set and channel occupancy duration to one or more UEs;

[0167] - Indicates downlink feedback information for the configured authorized PUSCH (CG-DFI).

[0168] In describing wireless communication systems and in this disclosure described below, higher-layer signaling or higher-layer signaling can be a signaling method for transmitting information from a base station to a terminal via a downlink data channel of the physical layer or from a terminal to a base station via an uplink data channel of the physical layer, and examples of signaling methods can include signaling methods for transmitting information via radio resource control (RRC) signaling, packet data convergence protocol (PDCP) signaling, or medium access control (MAC) control element (CE).

[0169] In the following description of this disclosure, higher-level signaling can be a combination of one or more of the following signaling types:

[0170] -MIB (Master Information Block)

[0171] -SIB (System Information Block) or SIB X (X = 1, 2, ...)

[0172] -RRC signaling

[0173] -MAC CE

[0174] Physical layer (Layer 1 (L1)) signaling can be a combination of one or more of the following signaling types:

[0175] -PDCCH (Physical Downlink Control Channel)

[0176] -DCI (Downlink Control Information)

[0177] -UE-specific DCI

[0178] -Group Public DCI

[0179] -Public DCI

[0180] - Scheduling DCI (e.g., DCI used to schedule downlink or uplink data)

[0181] - Non-scheduled DCI (e.g., DCI other than the DCI used to schedule downlink or uplink data)

[0182] -PUCCH (Physical Uplink Control Channel)

[0183] -UCI (Uplink Control Information)

[0184] In embodiments of this disclosure, uplink control signaling may include physical layer signaling and / or higher layer signaling. As described above, physical layer signaling may include UCI and / or PUCCH, and higher layer signaling may include RRC signaling and / or MAC CE.

[0185] In embodiments of this disclosure, downlink control signaling may include physical layer signaling and / or higher layer signaling. As described above, physical layer signaling may include one or more of PDCCH, DCI, UE-specific DCI, group common DCI, common DCI, scheduling DCI (e.g., DCI for scheduling downlink or uplink data), and unscheduled DCI. Higher layer signaling may include one or more of MIB, SIB, or SIB X (X = 1, 2, ...), RRC signaling, or MAC CE. Therefore, "configure or indicate X via downlink control signaling" will be understood as configuring or indicating X via physical layer signaling, or configuring or indicating X via higher layer signaling, or configuring or indicating X via a combination of higher layer signaling and physical layer signaling.

[0186] In NR systems, each uplink carrier has independent power control parameters. As the number of uplink carriers used by the UE increases, the number of signaling bits increases exponentially, thus reducing spectral efficiency. Therefore, designing an uplink power control scheme to improve spectral efficiency is a problem that needs to be solved.

[0187] Option 1

[0188] The base station configures a power offset between two or more carriers (e.g., between anchored and non-anchored carriers) for the UE, and the UE determines the transmit power on the non-anchored carrier based on the offset. Furthermore, the UE can send a reference signal to the base station, allowing the base station to further estimate the power offset between the carriers.

[0189] Figure 6 An example method 600 performed by a UE in a wireless communication system according to an embodiment of this disclosure is shown, and Figure 7 A signal schematic diagram of an example method 600 performed by a UE in a wireless communication system according to an embodiment of the present disclosure is shown. Figure 6 and Figure 7 As shown, the example method 600 may include the following steps:

[0190] Step S601: The UE receives a synchronization signal block (SSB) and / or system information (SIB) in the first downlink frequency domain resource group. The system information may include the target received power of the first uplink channel / first uplink signal in the first uplink frequency domain resource group, and parameters or information related to a first offset related to the transmit power of the second uplink channel / second uplink signal in the second uplink frequency domain resource group;

[0191] Step S602: The UE transmits a first uplink channel / first uplink signal in the first uplink frequency domain resource group, and / or transmits a second uplink channel / uplink signal in the second uplink frequency domain resource group. The transmission power of the second uplink channel / uplink signal can be determined based on the target received power and the first offset mentioned above;

[0192] Step S603: The UE receives a downlink channel / downlink signal in the first downlink frequency domain resource group and / or the second downlink frequency domain resource group, wherein the downlink channel / downlink signal may include parameters or information related to the second offset;

[0193] Step S604: The UE transmits a third uplink channel / uplink signal in the second uplink frequency domain resource group. The transmission power of the third uplink channel / uplink signal can be determined based on the second offset.

[0194] More generally, Figure 8 A schematic diagram of a method for determining the transmit power of an uplink channel / uplink signal according to an embodiment of this disclosure is shown. Figure 8 As shown, in one optional implementation, the UE may receive a first power control parameter associated with a first uplink frequency domain resource group and / or a second power control parameter associated with a second uplink frequency domain resource group in a first frequency domain resource group.

[0195] In one alternative implementation, the UE may determine the transmission power of the uplink channel / uplink signal in the first frequency domain resource group based on a first power control parameter and a first downlink reference signal (e.g., SSB, CSI-RS, etc.) in the first frequency domain resource group.

[0196] In one alternative implementation, the UE may determine the transmission power of the uplink channel / uplink signal in the second uplink frequency domain resource group based on a first power control parameter, a second power control parameter, and one or more of a first downlink reference signal (e.g., SSB, CSI-RS, etc.) in the first frequency domain resource group.

[0197] The first power control parameter can be the target received power of the uplink channel / uplink signal in the first frequency domain resource group (e.g., the target received power of the preamble). For example, it can be the PRACH target received power PREAMBLE_RECEIVED_target_power provided by the higher layer, or the target received power preambleReceivedTargetPower related to PUSCH, or the nominal power p0-nominal related to PUCCH, or the power p0 related to SRS, etc.

[0198] The second power control parameter may include parameters or information related to a first offset associated with the transmit power of the second uplink channel / second uplink signal in the second uplink frequency domain resource group. For example, the second power control parameter (or the first offset) may include at least one of the following:

[0199] ● The offset between the target received power of the uplink channel / uplink signal in the first uplink frequency domain resource group and the target received power of the uplink channel / uplink signal in the second uplink frequency domain resource group (e.g., a third offset);

[0200] ● The offset (e.g., a fourth offset) between the path loss (PL) determined based on the first downlink frequency domain resource group (e.g., the downlink reference signal in the first frequency domain resource group, such as SSB) and the path loss of the second uplink frequency domain resource group.

[0201] ● The offset between the transmit power of the uplink channel / uplink signal in the first uplink frequency domain resource group and the transmit power of the uplink channel / uplink signal in the second uplink frequency domain resource group (e.g.,

[0202] Fifth offset);

[0203] ● The offset between the nominal transmit power of the uplink channel / uplink signal in the first uplink frequency domain resource group and the nominal transmit power of the uplink channel / uplink signal in the second uplink frequency domain resource group (e.g., the sixth offset);

[0204] ● The offset (e.g., seventh offset) between the power of the first downlink reference signal (e.g., SSB, CSI-RS, etc.) in the first frequency domain resource group and the power of the second downlink reference signal (e.g., NCD-SSB, etc.) in the second frequency domain resource group.

[0205] The advantage of this method of determining the power control parameters of the auxiliary frequency domain resource group based on the power control parameters of the primary frequency domain resource group is that it can achieve uplink power control of multiple frequency domain resource groups with fewer bits.

[0206] The method according to embodiments of this disclosure is described below using the target received power of PRACH and preamble as an example. In an optional implementation, the system information may include a parameter RACH-ConfigGeneric related to PRACH power, which may include one of the following:

[0207] ● preambleReceivedTargetPower can be used to indicate the target received power of the preamble in the first frequency domain resource group.

[0208] ● `preambleReceivedTargetPowerOffset` can be used to indicate the power offset between the target received power of the preamble in the second frequency domain resource group and the target received power of the preamble in the first frequency domain resource group.

[0209] ● `preambleReceivedTargetPowerOffsetList` can be used to indicate a list of power offsets. This list can include one or more first offsets, which can each indicate the power offset between the target received power of the preamble in one or more frequency domain resource groups and the target received power of the preamble in the first frequency domain resource group.

[0210] Optionally, the preambleReceivedTargetPowerOffsetList may also include parameters or information indicating the index of the frequency domain resource group.

[0211] In one example, the UE can calculate the transmit power of the uplink channel / uplink signal in the second uplink frequency domain resource group according to the following formula (1):

[0212] P2 = min{PCMAX2, P target,2 +PL2+P offset} (1)

[0213] Where PCMAX2 is the maximum output power configured for the UE in relation to the second uplink frequency domain resource group, P target,2 PL1 is the target received power of the uplink channel / uplink signal in the first uplink frequency domain resource group, provided by the higher-layer parameter `preambleReceivedTargetPower`. PL2 is the path loss determined by the UE based on reference signals (e.g., SSB, CSI-RS, etc.) in the first downlink frequency domain resource group. offset It is the power offset between the target received power of the preamble in the second frequency domain resource group and the target received power of the preamble in the first frequency domain resource group.

[0214] In an alternative implementation, when the system information does not include a power offset, the P offset The value of can be considered as 0.

[0215] In one alternative implementation, when the UE is configured with multiple second frequency domain resource groups, the system information may include multiple first offsets, and the transmission power of the uplink channel / uplink signal in each second frequency domain resource group may be determined based on the first offset associated with the second frequency domain resource group among the multiple first offsets.

[0216] Figure 9 The illustration shows a case where the transmit power of the uplink channel / uplink signal in a plurality of second frequency domain resource groups is determined by a plurality of first offsets according to an embodiment of the present disclosure.

[0217] In such Figure 9 In the example shown, the parameter `preambleReceivedTargetPowerOffsetList` can include multiple `preambleReceivedTargetPowerOffset` parameters. Each `preambleReceivedTargetPowerOffset` parameter can include parameters or information related to the index of the frequency domain resource group corresponding to that parameter, as well as parameters or information regarding the value of the first offset corresponding to that frequency domain resource group. For example, parameter 1 can include the first offset `a` and `Id = 2` corresponding to the second frequency domain resource group, and parameter 2 can include the first offset `b` and `Id = 3` corresponding to the third frequency domain resource group.

[0218] Figure 10 An example UE behavior according to an embodiment of this disclosure is illustrated. For example... Figure 10 As shown, in one optional implementation, when the UE is configured with multiple uplink frequency domain resource groups, the UE can receive system information (SIB), which may include the target received power and / or a first offset of the uplink channel / uplink signal (e.g., preamble) in the first frequency domain resource group. The UE's behavior may include one of the following:

[0219] ●When the system information includes parameters or information indicating the first offset:

[0220] When the system information includes the configuration information of the downlink reference signal of the second frequency domain resource group, the transmit power of the uplink signal / uplink channel in the second frequency domain resource group can be determined based on the target receive power of the uplink channel / uplink signal in the first frequency domain resource group and the downlink reference signal of the second frequency domain resource group (e.g., RS used to calculate the path loss PL2 of the second frequency domain resource group).

[0221] When the system information does not include the configuration information of the downlink reference signal of the second frequency domain resource group, the transmit power of the uplink signal / uplink channel in the second frequency domain resource group can be determined based on the target receive power of the uplink channel / uplink signal in the first frequency domain resource group, the first offset, and the downlink reference signal of the first frequency domain resource group (e.g., the downlink reference signal used to calculate the path loss PL1 of the first frequency domain resource group, such as SSB).

[0222] ●When the system information does not include parameters or information indicating the first offset:

[0223] The UE can send an uplink signal to request the activation of the downlink reference signal for the second frequency domain resource group:

[0224] For example, when the system information includes the configuration information of the downlink reference signal of the second frequency domain resource group, the UE can send an uplink signal to request the activation of the downlink reference signal of the second frequency domain resource group;

[0225] For example, when the system information includes the configuration information of the downlink reference signal of the second frequency domain resource group, and all the downlink reference signals of the second frequency domain resource group are currently inactive, the UE can send an uplink signal to request the activation of the downlink reference signal of the second frequency domain resource group.

[0226] n UE may not perform uplink transmission on the second frequency domain resource group:

[0227] For example, when the system information does not include the configuration information of the downlink reference signal of the second frequency domain resource group, the UE does not perform uplink transmission on the second frequency domain resource group;

[0228] For example, when the system information includes the configuration information of the downlink reference signal of the second frequency domain resource group, and all the downlink reference signals of the second frequency domain resource group are currently inactive, the UE does not perform uplink transmission on the second frequency domain resource group.

[0229] In this disclosure, the downlink reference signal of the first frequency domain resource group can be used to determine the power level (PL) of the first frequency domain resource group, and this PL can be further used to determine the transmission power of the uplink channel / uplink signal in the second frequency domain resource group. Furthermore, the downlink reference signal of the second frequency domain resource group can be used to determine the PL of the second frequency domain resource group.

[0230] The conditions described above for UE behavior are merely examples. The various methods, steps, or UE behaviors described above can be performed under any conditions, or in any combination, and this disclosure makes no limitation. For example, regardless of whether the system information includes parameters or information indicating the first offset, the UE can determine the transmission power of the uplink channel / uplink signal in the second frequency domain resource group based on the downlink reference signal of the second frequency domain resource group; regardless of whether the system information includes configuration information of the downlink reference signal of the second frequency domain resource group, the UE can determine the transmission power of the uplink channel / uplink signal in the second frequency domain resource group based on the downlink reference signal of the first frequency domain resource group and / or the first offset, and so on.

[0231] For example, a fifth uplink signal can be transmitted in the first frequency domain resource group when a first condition is met, wherein the fifth uplink signal is used to request activation of the second downlink reference signal. The first condition may include at least one of the following:

[0232] The system information does not include parameters or information indicating the first offset;

[0233] The system information includes the configuration information of the downlink reference signal in the second frequency domain resource group;

[0234] The system information includes the configuration information of the downlink reference signals in the second frequency domain resource group, and all downlink reference signals in the second frequency domain resource group are in an inactive state.

[0235] For example, uplink transmission may not be performed on the second frequency domain resource group if the second condition is met. The second condition may include at least one of the following:

[0236] The system information does not include the configuration information of the downlink reference signal in the second frequency domain resource group;

[0237] The system information includes the configuration information of the downlink reference signals in the second frequency domain resource group, and all downlink reference signals in the second frequency domain resource group are in an inactive state.

[0238] Figure 10 The diagram only illustrates the case where, upon receiving a second downlink reference signal from the second frequency domain resource group, the transmit power of the uplink signal / uplink channel in the second frequency domain resource group can be determined based on the aforementioned target received power and the second downlink reference signal. It should be understood that, upon receiving a second downlink reference signal from the second frequency domain resource group, the transmit power of the uplink signal / uplink channel in the second frequency domain resource group can also be determined based on the aforementioned target received power, the second downlink reference signal, and / or the first offset.

[0239] In the example description of this disclosure, information such as target received power and / or first offset is received via system information. It should be understood that information such as target received power and / or first offset can also be received via any other one or more messages in the first frequency domain resource group, and can be received individually or in combination, or can be pre-set or pre-configured, without limitation by this disclosure.

[0240] In one optional implementation, when the UE is configured to transmit an uplink channel / uplink signal on a first uplink frequency domain resource group and at least one second uplink frequency domain resource group, the transmit power of the uplink channel / uplink signal can be determined based on the target received power of the uplink channel / uplink signal in the first uplink frequency domain resource group and a first offset. For example, the transmit power of the uplink channel / uplink signal can be determined based on the aforementioned target received power, a first downlink reference signal, and the first offset; and / or, the transmit power of the uplink channel / uplink signal can be determined based on the aforementioned target received power, a second downlink reference signal received in at least one second frequency domain resource group, and the first offset.

[0241] The following example uses PUSCH as the uplink channel / uplink signal for illustration.

[0242] When the UE is configured to transmit PUSCH on the first uplink frequency domain resource group and the second uplink frequency domain resource group, the transmission power of PUSCH can be determined based on the following formula (2):

[0243]

[0244] Among them, P PUSCH (i) represents the transmit power of the PUSCH on the i-th frequency domain resource group; P CMAX (i) represents the maximum transmit power of the UE on the i-th frequency domain resource group configured; P O_PUSCH P1(i) represents the nominal transmit power of the PUSCH, or, in some examples, the target receive power of the PUSCH; P1(i) represents a parameter related to the number of RBs occupied by the PUSCH; P3(i) represents other power control parameters, such as power control parameters related to the MCS, or power control parameters related to the TPC command; α represents an adjustment parameter for path loss, which can be determined by higher layer parameters; P2(i,i0) is related to the first offset.

[0245] In some implementations, P2(i,i0) can be calculated according to the following formula: P2(i,i0)=min(P2(i),P2(i)+P offset (i,i0)), where P offset (i, i0) is determined based on the first offset, for example, Poffset (i,i0) can represent the offset between the path loss of the i-th frequency domain resource group and the path loss of the i0-th frequency domain resource group. In some implementations, P2(i,i0) can be calculated according to the following formula: P2(i,i0)=max(P2(i),P2(i)+P offset (i,i0)). In some implementations, P2(i,i0) can be calculated according to the following formula: P2(i,i0)=mean(P2(i),P2(i)+P offset (i, i0)). Here, P2(i) can represent the path loss of the i-th frequency domain resource group. In the following text, P will be referred to as... offset P represents offset (i,i0).

[0246] In some implementations, when the UE is configured to transmit PUSCH on the first uplink frequency domain resource group and the second uplink frequency domain resource group, the transmission power of PUSCH can be determined based on the following formula (3):

[0247]

[0248] In some implementations, when the UE is configured to transmit PUSCH on the first uplink frequency domain resource group and the second uplink frequency domain resource group, the transmission power of PUSCH can be determined based on the following formula (4):

[0249]

[0250] In some implementations, when the UE is configured to transmit PUSCH on the first uplink frequency domain resource group and the second uplink frequency domain resource group, the transmission power of the PUSCH can be determined based on the following formula (5):

[0251]

[0252] In one example, taking Sounding Reference Signal (SRS) as an example, in an alternative implementation, if the UE transmits SRS on SRS resources in multiple uplink frequency domain resource groups, the UE can allocate power such that all REs used for SRS transmission have the same power.

[0253] The advantage of this design is that the UE transmits signals / channels with the same power on multiple frequency domain resource groups, and the UE can enable the base station to determine the offset of path loss between multiple frequency domain resource groups based on the signals / channels without additional signaling.

[0254] In some implementations, when a UE is configured with multiple frequency domain resource groups, the UE can receive system information, wherein the system information may include at least one of the following:

[0255] ●Target received power of the uplink channel / uplink signal in the first frequency domain resource group;

[0256] ● Configuration information of the downlink reference signal for the first frequency domain resource group;

[0257] ●Target received power of the uplink channel / uplink signal in the second frequency domain resource group;

[0258] ● Configuration information for the downlink reference signal of the second frequency domain resource group.

[0259] In some implementations, the UE can determine the transmit power of the uplink channel / uplink signal of the second frequency domain resource group based on one of the target received power of the uplink channel / uplink signal of the first frequency domain resource group or the target received power of the uplink channel / uplink signal of the second frequency domain resource group, and the downlink reference signal (and / or the first offset) of the second frequency domain resource group when one of the following conditions (e.g., it may be referred to as the third condition) is met:

[0260] ●The system information includes the configuration information of the downlink reference signal for the second frequency domain resource group;

[0261] ● The system information indicates that the downlink reference signal of the second frequency domain resource group has been activated (i.e., the system information includes information related to the activation of the downlink reference signal of the second frequency domain resource group).

[0262] ● The UE is configured with a downlink reference signal for the second frequency domain resource group;

[0263] ● The UE is configured with the downlink reference signal of the second frequency domain resource group activated.

[0264] In some implementations, the UE can determine the transmit power of the uplink channel / uplink signal in the second frequency domain resource group based on either the target received power of the uplink channel / uplink signal in the first frequency domain resource group or the target received power of the uplink channel / uplink signal in the second frequency domain resource group, and the downlink reference signal (and / or the first offset) of the first frequency domain resource group when one of the following conditions (e.g., referred to as the fourth condition) is met:

[0265] ●The system information does not include the configuration information for the downlink reference signal of the second frequency domain resource group;

[0266] ●System information indicates that the downlink reference signal for the second frequency domain resource group has not been activated;

[0267] ● The UE is not configured with a downlink reference signal for the second frequency domain resource group;

[0268] ● The UE was indicated that the downlink reference signal for the second frequency domain resource group was not activated;

[0269] ● The UE was not instructed to activate the downlink reference signal of the second frequency domain resource group.

[0270] In one example, the UE can be configured with the parameter preambleReceivedTargetPowerNonAnchor (e.g., which may be referred to as the first parameter). The parameter preambleReceivedTargetPowerNonAnchor can indicate the target received power of the uplink channel / uplink signal in the second frequency domain resource group when one of the following conditions (e.g., which may be referred to as the fifth condition) is met:

[0271] ●The system information includes the configuration information of the downlink reference signal for the second frequency domain resource group;

[0272] ●System information indicates that the downlink reference signal of the second frequency domain resource group has been activated;

[0273] ● The UE is configured with a downlink reference signal for the second frequency domain resource group;

[0274] ● The downlink reference signal of the second frequency domain resource group is activated when the UE is configured;

[0275] The parameter `preambleReceivedTargetPowerNonAnchor` can indicate the value of the first offset when one of the following conditions (for example, it can be called the sixth condition) is met:

[0276] ●The system information does not include the configuration information for the downlink reference signal of the second frequency domain resource group;

[0277] ●System information indicates that the downlink reference signal for the second frequency domain resource group has not been activated;

[0278] ● The UE is not configured with a downlink reference signal for the second frequency domain resource group;

[0279] ● The UE was indicated that the downlink reference signal for the second frequency domain resource group was not activated;

[0280] ● The UE was not instructed to activate the downlink reference signal of the second frequency domain resource group.

[0281] In some examples herein, only the transmission power of the uplink channel / uplink signal in the second frequency domain resource group is described as being determined based on a first offset. It should be understood that after obtaining an updated and / or adjusted second offset as the first offset according to the method of embodiments of this disclosure, the transmission power of the uplink channel / uplink signal in the second frequency domain resource group can be determined based on the first offset and / or the second offset.

[0282] In one optional implementation, the UE may send message 1 (MSG1) in the random access message to the base station, wherein the preamble of MSG1 and / or the time-domain / frequency-domain resources corresponding to MSG1 may be related to the UE's capabilities. For example, all or some of the available preambles in the cell may be divided into two groups. When the UE has the capability to simultaneously process the first uplink frequency-domain resource group and the second uplink frequency-domain resource group, the UE may select a preamble from the first group; when the UE does not have the capability to simultaneously process the first uplink frequency-domain resource group and the second uplink frequency-domain resource group, the UE may select a preamble from the second group.

[0283] In one alternative implementation, the UE may receive message 2 (MSG2) from the base station. MSG2 may instruct the UE to transmit uplink channels / uplink signals in a first uplink frequency domain resource group and a second uplink frequency domain resource group. The transmission power of the uplink channels / uplink signals in the second uplink frequency domain resource group may be calculated / determined based on a first offset and / or the target received power of the uplink channels / uplink signals in the first uplink frequency domain resource group and / or a first downlink reference signal in the first uplink frequency domain resource group.

[0284] Figure 11 An example process according to an embodiment of this disclosure is shown. For example... Figure 11 As shown, in one alternative implementation, MSG2 may include parameters that indicate the time-domain resources / frequency-domain resources of the uplink channel / uplink signal transmitted by the UE in the first uplink frequency domain resource group and / or the second uplink frequency domain resource group.

[0285] In one optional implementation, the UE may transmit a first uplink channel / first uplink signal, such as a PUSCH containing message 3 (MSG3), in a first uplink frequency domain resource group, and the UE may transmit an uplink reference signal (which may be referred to as a second uplink reference signal) in a second uplink frequency domain resource group. In one optional implementation, the parameter indicating whether the UE transmits an uplink reference signal in the second uplink frequency domain resource group may be configured with one of the following parameters: MAC PDU, MAC sub-header, uplink grant (UL grant), etc.

[0286] In one example, MSG2 may include an uplink grant, which may include a parameter indicating whether the UE transmits an uplink reference signal in the second uplink frequency domain resource group. When the parameter is 1, it indicates that the UE transmits the uplink reference signal in the second uplink frequency domain resource group; when the parameter is 0, it indicates that the UE does not transmit the uplink reference signal in the second uplink frequency domain resource group. In an optional implementation, MSG2 may include frequency domain resource parameters for the uplink reference signal. For example, MSG2 may include a reference signal frequency resource allocation (RS) parameter to indicate the frequency domain resources of the uplink reference signal. As another example, MSG2 may include a reference signal time resource allocation (RS) parameter to indicate the time domain resources of the uplink reference signal.

[0287] In an optional implementation, the aforementioned uplink signal can also be replaced by an uplink channel, such as the Physical Random Access Channel (PRACH). In an optional implementation, the uplink reference signal can also be a preamble.

[0288] In one alternative implementation, the time-domain resources of the uplink reference signal transmitted in the second frequency domain resource group may be associated with the time-domain resources of the uplink signal (e.g., including the PUSCH for MSG3 for random access). Specifically, Figure 12 An example association between the time-domain resources of an uplink reference signal and the time-domain resources of an uplink signal according to an embodiment of this disclosure is shown. For example, as Figure 12 As shown in RS1, the time-domain resources of this uplink reference signal can be the same as the first symbol of the time-domain resources of MSG3. In an optional implementation, the time-domain resources of this uplink reference signal can be related to the time-domain resources of the symbol containing the DMRS of MSG3. For example, as... Figure 12 As shown in RS2, the time-domain resources of this uplink reference signal can be the same as the time-domain resources of the symbol containing the DMRS of MSG3. For example, the first symbol of the time-domain resources of this uplink reference signal can be the same as the first symbol of the time-domain resources containing the DMRS of MSG3.

[0289] In this disclosure, examples using symbols as time units have been described. It should be understood that the symbols in the embodiments of this disclosure can also be replaced with any other time unit. Furthermore, Figure 12 Only the case where the uplink reference signal includes one symbol is shown. In embodiments of this disclosure, the uplink reference signal may include one or more time units.

[0290] In one optional implementation, the UE receives a System Information Block (SIB), wherein the SIB may contain time-domain resources corresponding to the reference signal resources of the second frequency domain resource group. When MSG2 instructs the UE to transmit a reference signal in the second frequency domain resource group, the time-domain resources used to transmit the reference signal may be resources in the time-domain resources corresponding to the reference signal resources of the second frequency domain resource group that overlap with the time-domain resources of the PUSCH corresponding to MSG3 scheduled by MSG2.

[0291] Furthermore, the system information block may include one or more sets of reference signal resources. These resources may be periodic resources, for example, multiple first resources that appear periodically. Figures 13a-13d This illustration shows another example association between the time-domain resources of an uplink reference signal and the time-domain resources of an uplink signal according to an embodiment of this disclosure. When a UE is configured or scheduled to transmit an uplink signal (e.g., MSG3) in a first frequency domain resource group, the UE can transmit a reference signal in a second frequency domain resource group. The time-domain resources used to transmit the reference signal can be first resources that overlap with the uplink signal among a plurality of first resources, such as... Figure 13a As shown in RS1.

[0292] When multiple first resources overlap with the uplink signal, the time-domain resource used to transmit the reference signal can be any of the multiple first resources overlapping with the uplink signal, such as... Figure 13b RS1 and RS2 are shown in the figure.

[0293] When multiple first resources overlap with the uplink signal, the time-domain resource of the reference signal used to transmit the reference signal can be the first resource among the multiple first resources overlapping with the uplink signal, such as... Figure 13c As shown in RS1.

[0294] Here, overlap can refer to temporal overlap, which can be complete or partial overlap, such as... Figure 13d As shown. In Figure 13d If the symbol containing RS resource 1 is different from the symbol containing the uplink signal, then RS resource 1 does not overlap with the uplink signal; if all the symbols containing RS resource 2 overlap with the uplink signal, then RS resource 2 completely overlaps with the uplink signal; if some of the symbols containing RS resource 3 overlap with the uplink signal, then RS resource 3 partially overlaps with the uplink signal.

[0295] In one optional implementation, the UE may receive a System Information Block (SIB). The SIB may contain frequency domain resources for a reference signal used in the second frequency domain resource group. In another optional implementation, the UE may receive a SIB that includes frequency domain resources indicating the location of an initial bandwidth portion of the second frequency domain resource group, wherein the frequency domain resources containing the initial bandwidth portion are the frequency domain resources corresponding to the reference signal resources.

[0296] In one alternative implementation, after the UE transmits an uplink reference signal in the second frequency domain resource group, it can receive a downlink signal in the first frequency domain resource group, wherein the downlink signal may include a second offset related to the transmission power of the uplink channel / uplink signal in the second frequency domain resource group.

[0297] In one alternative implementation, the second offset may include at least one of the following:

[0298] ● The offset between the target received power of the uplink channel / uplink signal in the first uplink frequency domain resource group and the target received power of the uplink channel / uplink signal in the second uplink frequency domain resource group;

[0299] ● The offset between the path loss (PL) determined based on the first downlink frequency domain resource group (e.g., the downlink reference signal in the first frequency domain resource group, such as SSB) and the path loss of the second uplink frequency domain resource group.

[0300] ● The offset between the transmit power of the uplink channel / uplink signal in the first uplink frequency domain resource group and the transmit power of the uplink channel / uplink signal in the second uplink frequency domain resource group;

[0301] ● The offset between the nominal transmit power of the uplink channel / uplink signal in the first uplink frequency domain resource group and the nominal transmit power of the uplink channel / uplink signal in the second uplink frequency domain resource group;

[0302] ● The offset between the power of the first downlink reference signal (e.g., SSB, etc.) in the first frequency domain resource group and the power of the second downlink reference signal (e.g., NCD-SSB, etc.) in the second frequency domain resource group.

[0303] In one example, the UE can calculate the transmit power of the uplink channel / uplink signal in the second uplink frequency domain resource group according to the following formula (6):

[0304] P2 = min{PCMAX2, P target,2 +PL2+P offset} (6)

[0305] Where PCMAX2 is the maximum output power configured for the UE in relation to the second uplink frequency domain resource group, P target,2 PL1 is the target received power of the uplink channel / uplink signal in the first uplink frequency domain resource group provided by higher-layer parameters, and PL2 is the path loss determined by the UE based on reference signals (e.g., SSB, CSI-RS, etc.) in the first downlink frequency domain resource group. offset This can be a second offset. It is understood that the second offset and the first offset described above can have the same physical meaning. Before the UE receives the second offset, the UE can use the first offset to determine the transmission power of the uplink channel / uplink signal in the second frequency domain resource group; when the UE receives the second offset or after a certain period of time, it can use the second offset to determine the transmission power of the uplink channel / uplink signal in the second frequency domain resource group. In other words, the second offset can be an update of the first offset (and / or one or more offsets included in the first offset).

[0306] In an optional implementation, the second offset can also be a power adjustment amount, which can be used to indicate that the transmission power of the uplink channel / uplink signal transmitted by the UE on the second uplink frequency domain resource group needs to be adjusted based on the first offset. That is, the second offset can also be an adjustment or delta of the first offset (and / or one or more offsets included in the first offset). It is understood that before the UE receives the second offset, the UE can use the first offset to determine the transmission power of the uplink channel / uplink signal in the second frequency domain resource group; when the UE receives the second offset or after a certain period of time after receiving the second offset, it can use the first offset and the second offset to determine the transmission power of the uplink channel / uplink signal in the second frequency domain resource group.

[0307] The advantage of this design is that the UE can obtain a power offset that matches the current channel state based on this mechanism, thereby using reasonable uplink power to transmit uplink channels / signals, which helps the UE save energy while ensuring system performance.

[0308] In one example, the UE can calculate the transmit power of the uplink channel / uplink signal on the second uplink frequency domain resource group according to the following formula (7):

[0309] P2 = min{PCMAX2, P target,2 +PL2+P offset} (7)

[0310] Where PCMAX2 is the maximum output power configured for the UE in relation to the second uplink frequency domain resource group, P target,2PL1 is the target received power of the uplink channel / uplink signal in the first uplink frequency domain resource group provided by higher-layer parameters, and PL2 is the path loss determined by the UE based on reference signals (e.g., SSB, CSI-RS, etc.) in the first downlink frequency domain resource group. offset It can be the sum of the first offset and the second offset.

[0311] In one alternative implementation, the downlink signal in the first frequency domain resource group may include a power adjustment command, which may include a second offset, instructing the UE to apply the second offset to the transmission power calculation of the uplink channel / uplink signal in the second frequency domain resource group.

[0312] Figure 14 and Figure 15 An example of receiving and applying a second offset according to an embodiment of this disclosure is shown.

[0313] like Figure 14 As shown, in one optional implementation, the UE can receive the downlink signal within t1 time units (also referred to as the first time period) after transmitting uplink signal 1. When the downlink signal contains a second offset, the UE can apply the second offset. If the UE does not receive the downlink signal within t1 time units after transmitting uplink signal 1, the second offset can be considered 0, and / or not applied. The number of time units t1-t14 in this disclosure can be any non-negative integer.

[0314] In one alternative implementation, uplink signal 1 may be MSG3. After transmitting MSG3, the UE can perform a blind detection of the PDCCH in the first downlink frequency domain resource group, which may include parameters or information related to the second offset. For example, the PDCCH may include the second offset.

[0315] In one alternative implementation, uplink signal 1 may be MSG3. After transmitting MSG3, the UE may perform blind detection of the PDCCH in the first downlink frequency domain resource group, and the UE may receive a PDSCH containing message 4 (MSG4) based on the PDCCH, which may include a second offset.

[0316] like Figure 14As shown, in one optional implementation, the UE may begin applying the second offset t2 time units (also referred to as the second time period) after receiving the downlink signal including the second offset, for example, applying it to uplink signal 2. For example, for the second offset received in time unit (e.g., slot, symbol, frame, subframe, etc.) n, the corresponding adjustment of the uplink transmit power may begin to be applied from time unit n+t2. Here, t2 may be a predefined or preconfigured value, or a value related to the subcarrier spacing.

[0317] like Figure 15 As shown, in one optional implementation, the UE is scheduled or configured to transmit uplink signal 2 in the second frequency domain resource group. If a portion of the time units occupied by uplink signal 2 overlaps with the t2 time units, the second offset may not be applied to uplink signal 2; that is, the transmission power of uplink signal 2 is still determined based on the first offset. If the start time unit of uplink signal 2 is earlier than t2 time units after the last time unit of downlink signal 2, the transmission power of uplink signal 2 is determined based on the first offset. If the start time unit of uplink signal 2 is not earlier than t2 time units after the last time unit of downlink signal 2, the transmission power of uplink signal 2 is determined based on both the first and second offsets, or the transmission power of uplink signal 2 is determined based on the second offset.

[0318] In the description above and below of this disclosure, each time period (also referred to as time length, duration, time range, etc.) can be represented by any time unit, or can be configured and represented by a corresponding timer. The number of time units included in each time period is merely an example, and each time period can have any suitable time length or number of time units.

[0319] In one optional implementation, the UE is scheduled or configured to transmit an uplink reference signal in a first frequency domain resource group and a second frequency domain resource group, wherein the transmission power of the uplink reference signal in the second frequency domain resource group can be determined based on a first offset. In another optional implementation, after transmitting the uplink reference signal, the UE can receive a downlink signal including a second offset in the first frequency domain resource group and / or the second frequency domain resource group.

[0320] Figure 16An example of time-domain resources for transmitting an uplink reference signal according to an embodiment of this disclosure is shown. In an optional implementation, the system information may include resources for one or more uplink reference signals, which may be periodic or aperiodic. The UE may receive a downlink signal, wherein the downlink signal may include information indicating the activation of one or more uplink reference signals. The UE may transmit the uplink reference signal based on the downlink signal. The time-domain resources for transmitting the uplink reference signal may be determined based on the downlink signal and t3. The UE may transmit the uplink reference signal on the first reference signal resource after t3 time units (which may be referred to as the third time period) following the last time unit occupied by the downlink signal, such as... Figure 16 As shown.

[0321] In one optional implementation, the time domain resources of the first uplink reference signal transmitted by the UE in the first frequency domain resource group and the time domain resources of the second uplink reference signal transmitted by the UE in the second frequency domain resource group may be the same or different.

[0322] In one optional implementation, the UE can receive a downlink signal after transmitting an uplink reference signal, wherein the downlink signal may include a second offset. Furthermore, after each transmission of the uplink reference signal, the UE can continue to receive a downlink signal including a new second offset.

[0323] Figure 17 An example of time-domain resources for receiving downlink signals according to an embodiment of this disclosure is shown. For example... Figure 17 As shown, in an optional implementation, the UE can receive the downlink signal within t4 time units (which may be referred to as the fourth time period) after the last time unit occupied by the transmitted uplink reference signal, wherein the downlink signal may include a second offset.

[0324] In one alternative implementation, if the UE does not receive a downlink signal including the second offset within t4 time units after the last time unit occupied by the transmitted uplink reference signal, the second offset can be considered as 0. Alternatively, the transmission power of the uplink channel / signal in the second frequency domain resource group can be determined based on the first offset, or the uplink channel / signal can be not transmitted on the second frequency domain resource group. t4 can be a predefined or preconfigured value, or a value related to the period of the uplink reference signal. For example, t4 can be equal to the period of the uplink reference signal. Another example is that t4 can be equal to half the period of the uplink reference signal, and so on.

[0325] Figure 18 Example behavior of a UE after receiving a downlink signal according to an embodiment of this disclosure is shown. Figure 18As shown, in one optional implementation, the UE can start or restart a first timer upon receiving a downlink signal including a second offset. The time range of the first timer can be t5 time units (which can be referred to as the fifth time period). t5 can be a predefined or preconfigured value, or a value determined according to higher-layer parameters. For example, t5 or the time range of the first timer can be 100ms, 200ms, 500ms, 750ms, etc. When the first timer expires, the UE can perform at least one of the following:

[0326] ● Clear the HARQ buffer associated with the second frequency domain resource group;

[0327] ●Notify the RRC layer to release the PUCCH for the second frequency domain resource group (if it is already configured);

[0328] ● Notify the RRC layer to release the uplink reference signal for the second frequency domain resource group, for example, SRS (if configured);

[0329] ● Clear downlink allocations and / or uplink licenses configured in the second frequency domain resource group;

[0330] ● Clear the PUSCH resources in the second frequency domain resource group to perform semi-persistent CSI reporting.

[0331] In one alternative implementation, when the first timer expires, the UE may transmit an uplink signal that can be used to request an update to the second offset. The transmission power of the uplink signal may be determined based on the first offset. In one example, the UE may transmit a specific preamble (e.g., a pre-configured or predefined preamble for requesting an update to the second offset), or the UE may transmit the preamble on a specific resource (e.g., a pre-configured or predefined resource for transmitting the preamble for requesting an update to the second offset) to request an update to the second offset. This specific resource may be a time-domain / frequency-domain resource configured for the UE to transmit the preamble.

[0332] In one example, the UE may send a PUCCH, which may contain parameters requesting a second offset update. In another example, the UE may send a PUSCH, which may include parameters requesting a second offset update. In yet another example, the UE may send a PUCCH, which may include a scheduling request. The UE listens to a PDCCH that schedules a PUSCH, and the UE sends a PUSCH, which may include parameters requesting a second offset update.

[0333] In one optional implementation, when the first timer expires, the UE can start a second timer. The time range t6 of the second timer can be configured by the base station, or predefined or pre-configured. For example, the time range of the second timer can be 10ms, 20ms, 50ms, 75ms, etc.

[0334] Figures 19a-19c An example of a second timer according to an embodiment of this disclosure is shown.

[0335] like Figure 19a As shown, in an optional implementation, if the second timer is running and the UE detects downlink control information for scheduling the PUSCH, the second timer can be stopped. Figure 19b As shown, in one optional implementation, if the second timer is running and the UE detects downlink control information for scheduling the PUSCH, and the first time unit of the PUSCH overlaps with t6 time units (which can be referred to as the sixth time period) after the first timer expires, the second timer can be stopped. In one optional implementation, the UE can send parameters requesting a second offset update in the PUSCH. In one optional implementation, after the second timer expires, the UE can send an uplink signal requesting a second offset update, such as... Figure 19c As shown.

[0336] In one alternative implementation, the UE may transmit the actual transmit power of the reference signal.

[0337] Figures 20a-20d An example of the actual transmit power of a UE transmitting an uplink signal according to an embodiment of this disclosure is shown. For example... Figure 20a As shown, the UE can transmit uplink signal 1a in the first frequency domain resource group and / or transmit uplink signal 1b in the second frequency domain resource group. The UE can transmit uplink signal 2 in the first frequency domain resource group and / or the second frequency domain resource group, wherein the uplink signal 2 may include the actual transmission power of uplink signal 1a and / or the actual transmission power of uplink signal 1b.

[0338] In an optional implementation, the UE may transmit uplink signal 2 within time unit t7 (also referred to as the seventh time period) after transmitting uplink signal 1a and / or uplink signal 1b, such as... Figure 20a As shown.

[0339] In an optional implementation, after the UE transmits uplink signal 1a and uplink signal 1b, the UE may transmit uplink signal 2 within time unit t7, which is later than the last time unit of uplink signal 1a and the last time unit of uplink signal 1b, such as... Figure 20b or Figure 20c As shown.

[0340] In an optional implementation, after the UE transmits uplink signal 1a and uplink signal 1b, the UE may transmit uplink signal 2 within time unit t7, which is earlier than the last time unit of uplink signal 1a and the last time unit of uplink signal 1b, as shown below. Figure 20d As shown.

[0341] In one alternative implementation, taking the reference signal as an example, the actual transmission power of the uplink signal can be the total transmission power of the UE in a certain time unit (time slot, or symbol, or one or more symbols occupied by the resources of the reference signal), which can be defined as the sum of linear values ​​of the transmission power of the UE corresponding to the reference signal in that time unit.

[0342] In one alternative implementation, if the total UE transmit power for uplink channel / uplink signal (including at least one of PUSCH, PUCCH, PRACH, SRS) transmission on the serving cell or candidate cell (if any) exceeds a first value (which may be a predefined or pre-configured value), the UE may allocate power to the uplink channel / uplink signal according to the following priority order (e.g., descending order) (e.g., prioritizing the transmission power of uplink channels / uplink signals with higher priority and reducing the transmission power of uplink channels / uplink signals with lower priority) so that in each symbol of transmission timing i, within that frequency range, the total UE transmit power for transmission on the serving cell or candidate cell (if any) is less than or equal to the first value corresponding to that frequency range.

[0343] According to the embodiments of this disclosure, the first priority order (which may also be referred to herein as power control priority) is as follows:

[0344] ●PRACH transmission on candidate cells

[0345] ● PRACH transmission on the main cell (PCell)

[0346] ● PUCCH or PUSCH transmissions can be further prioritized based on their respective priority indexes.

[0347] ● For PUCCH or PUSCH transmissions with the same priority index

[0348] n PUCCH transmissions with HARQ-ACK information and / or SR, and / or link recovery request (LRR), or PUSCH transmissions with HARQ-ACK messages having priority indexes

[0349] n Use CSI's PUCCH for transmission or use CSI's PUSCH for transmission

[0350] n PUSCH transmissions without priority index or CSI HARQ-ACK information, for

[0351] Type-2 random access procedure, PUSCH transmission on PCell ● If UE is configured with prioSCellPRACH-OverSP-PeriodicSRS-r17

[0352] n Non-periodic SRS or PRACH transmissions on serving cells other than PCell

[0353] semi-persistent and / or periodic SRS transmissions

[0354] ●Otherwise,

[0355] n SRS transmissions (where aperiodic SRS has higher priority than semi-persistent and / or periodic SRS), or PRACH transmissions on serving cells other than PCell.

[0356] Figures 21a-21d An example scenario for determining power control priority according to an embodiment of this disclosure is shown.

[0357] like Figure 21a As shown, in an optional implementation, when the UE is configured to transmit a first uplink signal in a first frequency domain resource group and a second uplink signal in a second frequency domain resource group, and the transmission power of the second uplink signal in the second frequency domain resource group is the same as the transmission power of the first uplink signal in the first frequency domain resource group, the first uplink signal and the second uplink signal can have a higher priority (the same or different), for example, a higher priority than other uplink signals that do not have the same transmission power.

[0358] like Figure 21b As shown, in one optional implementation, when the UE is configured to transmit a first uplink signal in a first frequency domain resource group and a second uplink signal in a second frequency domain resource group, and the UE is configured to report the transmission power of the first uplink signal and the transmission power of the second uplink signal, or the UE is configured to report the offset between the transmission power of the first uplink signal and the transmission power of the second uplink signal, then the first uplink signal and the second uplink signal may have a higher priority (the same or different), for example, a higher priority than other uplink signals that are not configured to report transmission power or the offset between transmission powers.

[0359] like Figure 21cAs shown, in an optional implementation, when the UE is configured to transmit a second uplink signal in a second frequency domain resource group, and the downlink reference signal on which the path loss for calculating the transmission power of the second uplink signal in the second frequency domain resource group is based and the downlink reference signal on which the path loss for calculating the transmission power of the first uplink signal in the first frequency domain resource group is based are the same reference signal, or there is a quasi-co-location (QCL) relationship between them, then the first uplink signal and the second uplink signal can have a higher priority (the same or different), for example, a higher priority than other uplink signals that do not meet the aforementioned conditions.

[0360] like Figure 21d As shown, in an optional implementation, when the UE is configured with resources for transmitting a third uplink signal, and the resources for transmitting the third uplink signal include resources of a first frequency domain resource group and resources of a second frequency domain resource group, the third uplink signal can have a higher priority, for example, higher than the priority of other uplink signals that do not have resources across frequency domain resource groups.

[0361] In one alternative implementation, the fourth uplink signal may include at least one of the first uplink signal, the second uplink signal, and the third uplink signal described above.

[0362] In one alternative implementation, the UE can allocate power to the uplink channel / uplink signal according to the following second priority order (e.g., descending order):

[0363] ● Fourth upside signal

[0364] ● SRS transmission (where non-periodic SRS has higher priority than semi-persistent and / or periodic SRS)

[0365] For simplicity, the second priority order only shows that the priority of the fourth uplink signal is greater than the priority of the SRS transmission. It should be understood that the second priority order according to embodiments of this disclosure may also include the priority order of one or more other uplink channels / uplink signals mentioned in the first priority order above.

[0366] In one alternative implementation, the UE can allocate power to the uplink channel / uplink signal according to the following third priority order (e.g., descending order):

[0367] ● PRACH transmission on candidate cells and / or PCell

[0368] ● Fourth upside signal

[0369] ● PUCCH or PUSCH transmissions can be further prioritized based on their respective priority indexes.

[0370] For simplicity, the third priority order only indicates that the priority of the fourth uplink signal is lower than the priority of PRACH transmissions on the candidate cell and / or PCell, but higher than the priority of PUCCH or PUSCH transmissions. It should be understood that the third priority order according to embodiments of this disclosure may also include the priority order of one or more other uplink channels / uplink signals described in the first priority order above.

[0371] In one alternative implementation, the UE can allocate power to the uplink channel / uplink signal according to the following fourth priority order (e.g., descending order):

[0372] ● PRACH transmission on candidate cells and / or PCell

[0373] ● PUCCH or PUSCH transmissions can be further prioritized based on their respective priority indexes.

[0374] ● Fourth upside signal

[0375] For simplicity, the fourth priority order only indicates that the priority of the fourth uplink signal is lower than that of the PUCCH or PUSCH transmission. It should be understood that the fourth priority order according to embodiments of this disclosure may also include the priority order of one or more other uplink channels / uplink signals mentioned in the first priority order above.

[0376] More generally, in an alternative implementation, the priority of the fourth uplink signal can also be located at any priority position in the first priority order described above.

[0377] In an alternative implementation, the fourth uplink signal can be an SRS. In this case, the UE can allocate power to the uplink channel / uplink signal according to the following fifth priority order (e.g., descending order):

[0378] ● SRS transmission, in which the fourth uplink signal has a higher priority than the aperiodic SRS, and the aperiodic SRS has a higher priority than the semi-persistent and / or periodic SRS.

[0379] For simplicity, the fifth priority order only illustrates the relationship between the priority of the fourth uplink signal and the priorities of aperiodic SRS, semi-persistent and / or periodic SRS. It should be understood that the fifth priority order according to embodiments of this disclosure may also include the priority order of one or more other uplink channels / uplink signals mentioned in the first priority order above.

[0380] In one example, for single-cell operation with two uplink carriers, or for carrier aggregation operation, or for candidate cell operation for LTM configuration, if the total UE transmit power for PUSCH, PUCCH, PRACH, or SRS transmissions on the serving cell or candidate cell (if any) within the frequency range of each transmission timing i will exceed P^_CMAX(i) (where P^_CMAX(i) is a linear value of P_CMAX(i) in transmission timing i), then the UE may allocate power for PUSCH / PUCCH / PRACH / SRS transmissions according to the priority order (e.g., descending order) described in this disclosure, so that in each symbol of transmission timing i, the total UE transmit power for transmissions on the serving cell or candidate cell (if any) within that frequency range is less than or equal to P^_CMAX(i) of that frequency range. If the parameter uciMuxWithDiffPrio is provided to the UE, and the UE multiplexes HARQ-ACK information in the PUSCH, the priority index of the PUSCH can be the larger of (a) the priority index of the PUSCH and (b) the larger priority index of multiple HARQ-ACK messages. When determining the total transmit power of the serving cell or candidate cell (if any), the UE may exclude the transmit power starting after the transmission timing i symbol within the frequency range of the symbol of transmission timing i. The total UE transmit power in a time slot symbol can be defined as the linear sum of the UE transmit power of PUSCH, PUCCH, PRACH, and SRS in the time slot symbol.

[0381] Option 2

[0382] The base station can send a reference signal to the UE, which estimates the power offset between the two carriers and applies it to the uplink signal transmission power calculation. Additionally, the UE can request a downlink reference signal (DLRS) from the second frequency domain resource group.

[0383] Figure 22a An example method 2200 performed by a UE in a wireless communication system according to an embodiment of this disclosure is shown, and Figure 22b A signal schematic diagram of an example method 2200 performed by a UE in a wireless communication system according to an embodiment of the present disclosure is shown. Figure 22a and Figure 22b As shown, this example method 2200 may include the following steps:

[0384] Step S2201: The UE receives a synchronization signal block and / or system information in the first downlink frequency domain resource group. The system information may include the target received power of the first uplink channel / first uplink signal in the first uplink frequency domain resource group;

[0385] Step S2202: The UE sends a fifth uplink signal in the first uplink frequency domain resource group, which can be used to request the activation of the downlink reference signal in the second downlink frequency domain resource group;

[0386] Step S2203: The UE receives the downlink reference signal in the second downlink frequency domain resource group;

[0387] Step S2204: The UE transmits a sixth uplink signal in the second uplink frequency domain resource group. The transmission power of the sixth uplink signal can be determined based on the target received power of the first uplink channel / first uplink signal in the first uplink frequency domain resource group and the downlink reference signal.

[0388] In one alternative implementation, the UE receives system information. When the system information does not include a parameter indicating a first offset, the UE may send a fifth uplink signal, which can be used to request a reference signal in a second downlink frequency domain resource group.

[0389] In one alternative implementation, the UE may transmit a specific preamble (e.g., a pre-configured or predefined preamble for requesting a downlink reference signal in a second frequency domain resource group), or transmit the preamble on a specific PRACH resource (e.g., a pre-configured or predefined resource for transmitting a preamble for requesting a downlink reference signal in a second frequency domain resource group) to request a downlink reference signal (DLRS) in a second frequency domain resource group.

[0390] In some implementations, such a downlink reference signal may also be referred to as an on-demand reference signal (ODRS).

[0391] In one optional implementation, the UE receives system information. The system information may include reference signal resources for the second frequency domain resource group (or configuration information of the reference signals for the second frequency domain resource group). The UE may send a specific preamble, or a preamble on a specific PRACH resource, to activate the reference signal resources for the second frequency domain resource group. In another optional implementation, the UE may send information requesting DLRS on a dedicated PUCCH resource, or on a PUSCH resource.

[0392] Figures 23a-23c An example scenario for requesting a downlink reference signal according to an embodiment of this disclosure is shown.

[0393] In one alternative implementation, the UE receives system information. The system information may include parameters, information, or configuration information associated with one or more sequences (e.g., preambles). These one or more sequences may be associated with one or more frequency domain resource groups and / or DLRS resources, respectively. For example, in... Figure 23a In the SIB, multiple sequences can be configured, where sequence 1 is associated with DLRS resource 1 of the second frequency domain resource group, and sequence 2 is associated with DLRS resource 2 of the third frequency domain resource group. The UE can transmit at least one of these sequences in the first frequency domain resource group (e.g., RO1) to request a downlink reference signal in at least one second frequency domain resource group corresponding to the at least one sequence. Further, the UE can receive the requested activated downlink reference signal in the corresponding frequency domain resource group and / or DLRS resource. In an optional implementation, when the UE transmits multiple preambles, and the multiple preambles correspond to multiple second frequency domain resource groups respectively, the multiple second downlink reference signals in the multiple second frequency domain resource groups can occupy the same time domain resources.

[0394] In one optional implementation, the UE receives system information. The system information may include parameters, information, or configuration information related to one or more uplink resources. These one or more uplink resources may be associated with one or more frequency domain resource groups and / or one or more DLRS resources, respectively. For example, in... Figure 23b or Figure 23c In SIB, multiple uplink resources can be configured (e.g., Figure 23b RO1 and RO2 in, or Figure 23c Uplink resource 1 and uplink resource 2 in the middle). Figure 23c For example, uplink resource 1 can be associated with DLRS resource 1 of the second frequency domain resource group, and uplink resource 2 can be associated with DLRS resource 2 of the third frequency domain resource group. In one example, the UE can transmit a specified sequence (e.g., sequence 1 or other sequences) on uplink resource 1, and the UE can receive DLRS in the second frequency domain resource group. In another example, the UE can transmit a specified sequence (e.g., sequence 1 or other sequences) on uplink resource 2, and the UE can receive DLRS in the third frequency domain resource group. In an optional implementation, when the UE transmits preambles on multiple uplink resources, and these multiple uplink resources correspond to multiple second frequency domain resource groups respectively, multiple second downlink reference signals in the multiple second frequency domain resource groups can occupy the same time domain resources.

[0395] In an alternative implementation, when the UE needs to request DLRS for the second and third frequency domain resource groups, the UE can send the same signal (e.g., a preamble, or a specific sequence, such as sequence 1) on uplink resource 1 and uplink resource 2.

[0396] In one optional implementation, the UE receives system information. The system information may include parameters or information related to an uplink resource set. This uplink resource set may include multiple uplink resources, wherein the nth uplink resource may be associated with a DLRS resource on the mth frequency domain resource group, where m may be equal to n+1, and n is an integer greater than or equal to 0. In another optional implementation, the uplink resource set may include multiple uplink resources, wherein the nth uplink resource may be associated with a DLRS resource on the nth non-anchored frequency domain resource group, wherein the non-anchored frequency domain resource group may be a frequency domain resource group with an id not equal to 0 (when the id of the anchored frequency domain resource group is 0), or, a frequency domain resource group with an id not equal to 1 (when the id of the anchored frequency domain resource group is 1), or, a frequency domain resource group without an SSB.

[0397] In one alternative implementation, when the UE needs to request DLRS on multiple frequency domain resource groups, the UE can transmit the same sequence (e.g., preamble) on different uplink resources in the same uplink resource set.

[0398] In an alternative implementation, the UE may also transmit a fifth uplink signal in the second frequency domain resource group, which can be used to request activation of the DLRS in the second frequency domain resource group. In some implementations, the fifth uplink signal can be a low-power wake-up signal, such as an OOK signal. The advantage of this design is that the base station can use a low-power receiver to receive the fifth uplink signal, thereby saving network power consumption.

[0399] In one alternative implementation, the system information may include time-domain and / or frequency-domain resources of the downlink reference signal.

[0400] Figures 24a-24g A schematic diagram of the time-domain resources of a downlink reference signal according to an embodiment of the present disclosure is shown.

[0401] In one optional implementation, the UE can determine the time-domain resources of the downlink reference signal based on the fifth uplink signal. In another optional implementation, the UE can transmit the fifth uplink signal and receive the downlink reference signal of the second frequency domain resource group within t8 time units (which may be referred to as the eighth time period) after the last time unit of the fifth uplink signal, such as... Figure 24a The DLRS resource 1 is shown in the figure.

[0402] In one alternative implementation, the UE may transmit a fifth uplink signal and receive DLRS in the first time unit after t9 time units (which may be referred to as the ninth time period) following the last time unit of the fifth uplink signal, such as... Figure 24bThe DLRS resource 1 is shown in the figure.

[0403] In one optional implementation, the UE may transmit a fifth uplink signal and receive DLRS within t10 time units (which can be referred to as the tenth time period) after t9 time units following the last time unit of the fifth uplink signal, such as... Figure 24c The DLRS resource 1 is shown in the figure.

[0404] In one alternative implementation, the UE receives system information. The system information may include parameters indicating a set of uplink resources. This set of uplink resources may include multiple uplink resources, each of which may correspond to a DLRS resource in a downlink frequency domain resource group. For example, such as... Figure 24d As shown, the uplink resource set may include uplink resource 1 and uplink resource 2. Uplink resource 1 may be associated with DLRS resource 1 of the second frequency domain resource group, and uplink resource 2 may be associated with DLRS resource 2 of the third frequency domain resource group.

[0405] In one optional implementation, the UE receives configuration information associated with one or more preambles in the first frequency domain resource group, wherein the one or more preambles are respectively associated with one or more second frequency domain resource groups. The UE transmits at least one of the one or more preambles in the first frequency domain resource group, and receives at least one DLRS in at least one second frequency domain resource group corresponding to the at least one preamble. Where the UE transmits multiple preambles, and the multiple preambles respectively correspond to multiple second frequency domain resource groups, the multiple DLRSs in the multiple second frequency domain resource groups occupy the same time domain resources.

[0406] In one optional implementation, the UE receives configuration information related to one or more uplink resources in the first frequency domain resource group, wherein the one or more uplink resources are respectively associated with one or more second frequency domain resource groups. The UE transmits preambles on multiple uplink resources, and the multiple uplink resources respectively correspond to multiple second frequency domain resource groups (or, correspond to DLRS resources on multiple second frequency domain resource groups), wherein multiple DLRS in the multiple second frequency domain resource groups occupy the same time domain resources.

[0407] The advantage of this design is that it allows the UE to receive downlink reference signals from multiple downlink frequency domain resource sets simultaneously, saving the UE's measurement time. In an optional implementation, the uplink resource set can be cell-specific resources. Multiple UEs can use the same resources to request DLRS resources, thereby saving uplink resources and improving spectrum utilization.

[0408] In one optional implementation, the UE can transmit a fifth uplink signal in one or more uplink resources within the uplink resource set, and the UE can receive DLRS resources within t11 time units (which can be referred to as the eleventh time period) after the last time unit of the uplink resource set containing the uplink resource, such as... Figure 24d As shown.

[0409] In one optional implementation, the UE can transmit a fifth uplink signal in one or more uplink resources within the uplink resource set, and the UE can receive DLRS resources in the first time unit after t12 time units (which may be referred to as the twelfth time period) following the last time unit of the uplink resource set containing the uplink resource, such as... Figure 24e As shown.

[0410] In one optional implementation, the UE can transmit a fifth uplink signal in one or more uplink resources within the uplink resource set, and the UE can receive DLRS resources within t14 time units (which can be referred to as the fourteenth time unit) after the last time unit of the uplink resource set containing the uplink resource, such as... Figure 24f As shown.

[0411] The beneficial effects of binding (or associating) time-domain resources of DLRS resources and uplink resource sets can include saving UE processing time, because the time-domain resources of DLRSs corresponding to different frequency-domain resource groups in the same uplink resource set can be the same, so the UE can receive DLRSs on multiple downlink frequency-domain resource groups at the same time.

[0412] In an optional implementation, the UE may receive a first SSB and transmit a fifth uplink signal, wherein the time-domain / frequency-domain resources of the fifth uplink signal may be associated with the first SSB. In this case, the UE can determine the DLRS resources based on the first SSB and its period. For example, the time-domain resources of the DLRS may be the same as the second SSB, wherein the second SSB may be the SSB with the same SSB index (e.g., 1) as the first SSB in the next SSB period of the SSB period in which the fifth uplink signal is located. Figure 24g As shown.

[0413] In one alternative implementation, the system information may include frequency domain resources of the downlink reference signal. For example, the system information may include parameters or information indicating the center frequency of the DLRS, or the system information may include parameters or information indicating the lowest indexed frequency domain resource unit and / or the bandwidth of the DLRS.

[0414] Figure 25 A schematic diagram of the frequency domain resources of a downlink reference signal according to an embodiment of the present disclosure is shown.

[0415] In one alternative implementation, the UE can determine the frequency domain resources of the DLRS based on the frequency domain resources of the fifth uplink signal. For example, the UE can determine the first frequency domain offset based on the highest indexed frequency domain resource element of the first frequency domain resource group and the highest indexed frequency domain resource element of the fifth uplink signal (e.g., the difference between the two). The UE can determine the highest indexed frequency domain resource element of the DLRS resource based on the highest indexed frequency domain resource element of the second frequency domain resource group and the first frequency domain offset. Furthermore, the UE can determine the frequency domain resources of the DLRS based on the highest indexed frequency domain resource element of the DLRS resource and the bandwidth of the DLRS, such as... Figure 25 As shown. The bandwidth of DLRS can be determined by the UE based on system information. Similarly, "highest index" can be replaced with "lowest index".

[0416] Figure 26 An example behavior is shown in the case where the UE does not receive DLRS according to an embodiment of this disclosure.

[0417] In one alternative implementation, a counter can be set, with an initial value of 0. The UE can send a fifth uplink signal. If no downlink reference signal for the second frequency domain resource group is received within t8 time units after the last time unit of the fifth uplink signal, the counter value is incremented by 1. Simultaneously, the UE can resend the fifth uplink signal and continue waiting for the downlink reference signal to be received within t8 time units after the fifth uplink signal. When the counter value reaches a second value, the UE can notify the higher layer (e.g., the RRC layer) that the second frequency domain resource group is unavailable.

[0418] Figure 27a and Figure 27b An example scenario is shown where a downlink signal in a second frequency domain resource group indicates a PRACH resource according to an embodiment of this disclosure.

[0419] In some implementations, after transmitting the fifth uplink signal, the UE can receive a seventh downlink signal in the second frequency domain resource group. This seventh downlink signal may include DLRS. The seventh downlink signal may also include parameters or information for activating PRACH resources on the second frequency domain resource group, such as... Figure 27a As shown. In some implementations, the UE can determine the available PRACH resources on the second frequency domain resource group based on the PRACH resources configured in the system information and the seventh downlink signal.

[0420] To efficiently utilize PRACH resources, the PRACH resources configured by the base station (i.e., the network) need to be activated before they can be used. This includes, but is not limited to, cell-public PRACH resources configured through system information and / or dedicated PRACH resources configured through UE-specific signaling. In other words, configuring PRACH resources does not equate to their activation; they require further activation. If the configured PRACH resources are not activated, the UE will not be able to use them. This ensures that the number of activated PRACH resources matches the real-time network load, thus avoiding PRACH resource waste and network access congestion, achieving efficient utilization of PRACH resources.

[0421] In some implementations, the fifth uplink signal can be used to request (activate) the downlink reference signal and PRACH resources of the second frequency domain resource group. After transmitting the fifth uplink signal (e.g., a specific preamble), the UE can listen for a non-cell-defined SSB (NCD-SSB) in the second frequency domain resource group, where the NCD-SSB may include parameters indicating PRACH resource activation. For example, the NCD-SSB may include the parameter pdcch-ConfigSIB1, occupying eight bits. When the nth bit is 1, it can indicate that the PRACH resource with index n in the second frequency domain resource group in the system information is activated. Furthermore, embodiments of this disclosure can also indicate the activation of one or more resources through any other parameter or any other number of bits. In some implementations, the UE transmits a preamble on the PRACH resource, the transmission power of which can be determined based on the reference signal in the seventh downlink signal.

[0422] In some implementations, the seventh downlink signal may include an activation period for PRACH resources. This activation period may be related to an SSB cycle, a DRX cycle, or a paging cycle. For example, the seventh downlink signal may include parameters or information indicating the activation period of PRACH resources, where the unit of activation period may be an SSB cycle, a DRX cycle, or a paging cycle. For instance, the activation period may be n SSB cycles / DRX cycles / paging cycles. Figure 27b As shown.

[0423] In this embodiment of the disclosure, a random access procedure can be initiated based on a PRACH resource set during its activation period. That is, a PRACH resource set activated by a first signaling request and / or assisted activation, or activated by a second signaling instruction, is only activated for a limited time. Outside of the activation period, the PRACH resource set is deactivated by default. Specifically, the activation period may include, but is not limited to, at least one of the following:

[0424] (1) The activation period may include a time period of preset length;

[0425] Outside of this time period, the first signaling request and / or the auxiliary activation PRACH resource set are deactivated by default; that is, the activation period can be defined as a preset time length. Optionally, the activation time period length can be configured by the base station through system information.

[0426] (2) The activation period may include a first preset number of continuous ROs;

[0427] Wherein, after a first preset number of consecutive ROs, the first signaling request and / or the auxiliary activation of the PRACH resource set are deactivated by default;

[0428] (3) The activation period may include a preset maximum number of PRACH preamble transmissions;

[0429] Specifically, after the UE sends a preset maximum number of PRACH preambles based on an active PRACH resource set, this PRACH resource set is deactivated by default. This active PRACH resource set may include a first signaling request and / or a secondary activated PRACH resource set, or it may include a second signaling indication of an activated PRACH resource set.

[0430] In embodiments of this disclosure, the maximum number of PRACH preambles that a UE can send based on an active PRACH resource set can be determined based on the duration of the activation period of that PRACH resource set. The UE can determine the maximum number of times it is allowed to send PRACH preambles on the active PRACH resource set (i.e., the maximum number of random access procedures that can be initiated) based on the pre-configured duration of the activation period. For example, the maximum number of times it is allowed to send PRACH preambles can be determined based on the duration of the activation period using a predefined formula. This predefined formula can be the integer part of the activation period duration divided by a preset value, which can be a value pre-configured by the base station.

[0431] The embodiments of this disclosure primarily describe exemplary methods using the UE side as an example. It should be understood that the embodiments of this disclosure also include any base station-side methods corresponding to the UE method, which will not be described redundantly below.

[0432] It should be understood that, depending on the application scenario, the various example schemes, aspects, methods, steps, processes, etc. shown above in conjunction with the accompanying drawings can be implemented individually or in any combination, and this document does not impose any restrictions.

[0433] Next, Figure 28a A flowchart of a method 2800 performed by a user equipment (UE) in a wireless communication system according to an embodiment of the present disclosure is shown.

[0434] like Figure 28a As shown, a method 2800 performed by a user equipment (UE) in a wireless communication system according to an embodiment of this disclosure may include: in step S2801, receiving a first downlink reference signal and system information in a first frequency domain resource group, wherein the system information includes a target received power of a first uplink channel / first uplink signal in the first frequency domain resource group; and in step S2802, transmitting a seventh uplink channel / seventh uplink signal, wherein when the seventh uplink channel / seventh uplink signal occupies at least two frequency domain resource groups, the transmission power of the seventh uplink channel / seventh uplink signal is determined based on a first power and at least one second power. In some embodiments, the at least two frequency domain resource groups include a first frequency domain resource group and at least one second frequency domain resource group. In some embodiments, the first power is determined based on the target received power and the first downlink reference signal, and the second power is determined based on at least one of the following: based on the target received power, the first downlink reference signal, and a first offset; or based on the target received power, a second downlink reference signal received in a second frequency domain resource group, and the first offset.

[0435] According to embodiments of this disclosure, the first offset includes at least one of the following: an offset between the target received power of the first uplink channel / first uplink signal and the target received power of the second uplink channel / second uplink signal; an offset between the path loss of the first downlink frequency domain resource group determined based on the first downlink reference signal and the path loss of the second frequency domain resource group; an offset between the transmit power of the first uplink channel / first uplink signal and the transmit power of the second uplink channel / second uplink signal; an offset between the nominal transmit power of the first uplink channel / first uplink signal and the nominal transmit power of the second uplink channel / second uplink signal; and an offset between the transmit power of the first downlink reference signal in the first frequency domain resource group and the transmit power of the second downlink reference signal in the second frequency domain resource group.

[0436] According to embodiments of this disclosure, the method further includes: receiving a first downlink channel / first downlink signal in at least one of the first frequency domain resource group and the second frequency domain resource group, wherein the first downlink channel / first downlink signal includes a second offset, wherein the second offset indicates an update of the first offset or indicates an adjustment of the first offset; and transmitting a third uplink channel / third uplink signal in the second frequency domain resource group, wherein the transmission power of the third uplink channel / third uplink signal is determined based on the target received power, the first downlink reference signal, and the second offset.

[0437] According to embodiments of this disclosure, the second power is determined based on at least one of the following: the target received power, the first downlink reference signal, the first offset, and the second offset; the target received power, the first downlink reference signal, and the second offset; the target received power, the second downlink reference signal, the first offset, and the second offset; or the target received power, the second downlink reference signal, and the second offset.

[0438] According to embodiments of this disclosure, the transmission power of the seventh uplink channel / seventh uplink signal in the method is one of the minimum, maximum, and average values ​​of the first power and the second power.

[0439] According to an embodiment of this disclosure, the method further includes: when a first condition is met, transmitting a fifth uplink signal in the first frequency domain resource group, wherein the fifth uplink signal is used to request activation of the second downlink reference signal; wherein the first condition includes at least one of the following: the system information does not include parameters or information indicating the first offset; the system information includes configuration information of the downlink reference signals in the second frequency domain resource group; the system information includes configuration information of the downlink reference signals in the second frequency domain resource group, and all downlink reference signals in the second frequency domain resource group are in an inactive state.

[0440] According to an embodiment of this disclosure, the method further includes: when a second condition is met, not performing uplink transmission on the second frequency domain resource group, wherein the second condition includes at least one of the following: the system information does not include configuration information of downlink reference signals in the second frequency domain resource group; the system information includes configuration information of downlink reference signals in the second frequency domain resource group, and all downlink reference signals in the second frequency domain resource group are in an inactive state.

[0441] According to embodiments of this disclosure, the method further includes: transmitting the first uplink channel / first uplink signal in the first frequency domain resource group, wherein the second uplink channel / second uplink signal includes at least a second uplink reference signal, wherein the time domain resources of the second uplink reference signal satisfy at least one of the following: the first time unit occupied by the second uplink reference signal is the same as the start time unit of the first uplink channel / first uplink signal; the first time unit occupied by the second uplink reference signal is the same as the start time unit of the demodulation reference signal DMRS in the first uplink channel / first uplink signal; the time unit occupied by the second uplink reference signal is the same as the time unit occupied by the demodulation reference signal DMRS in the first uplink channel / first uplink signal.

[0442] According to an embodiment of this disclosure, the first uplink channel of the method is a Physical Uplink Shared Channel (PUSCH) that includes Message 3 for Random Access.

[0443] According to embodiments of this disclosure, the method further includes: receiving an eighth downlink channel / eighth downlink signal, wherein the eighth downlink channel / eighth downlink signal includes a parameter indicating a second offset; wherein, if the eighth downlink channel / eighth downlink signal is not received within t4 time units after the last time unit of the second uplink reference signal, at least one of the following is performed: treating the second offset as 0; determining the transmission power of the uplink channel / uplink signal in the second frequency domain resource group based on the first offset; and not transmitting the uplink channel / uplink signal on the second frequency domain resource group.

[0444] According to embodiments of this disclosure, the method further includes: transmitting a fourth uplink channel / fourth uplink signal in the first frequency domain resource group, wherein the fourth uplink channel / fourth uplink signal includes at least one of a first actual transmission power of the first uplink channel / first uplink signal and a second actual transmission power of the second uplink channel / second uplink signal.

[0445] According to embodiments of this disclosure, the method further includes: receiving configuration information associated with one or more preambles in a first frequency domain resource group, wherein the one or more preambles are respectively associated with one or more second frequency domain resource groups; transmitting at least one of the one or more preambles in the first frequency domain resource group; and receiving at least one second downlink reference signal in at least one second frequency domain resource group corresponding to the at least one preamble, wherein when the UE transmits multiple preambles and the multiple preambles respectively correspond to multiple second frequency domain resource groups, the multiple second downlink reference signals in the multiple second frequency domain resource groups occupy the same time domain resources.

[0446] According to embodiments of this disclosure, the method further includes: receiving configuration information related to one or more uplink resources in a first frequency domain resource group, wherein the one or more uplink resources are respectively associated with one or more second frequency domain resource groups; transmitting a preamble in at least one of the one or more uplink resources in the first frequency domain resource group; and receiving at least one second downlink reference signal in at least one second frequency domain resource group corresponding to the at least one uplink resource, wherein, when the UE transmits a preamble in multiple uplink resources and the multiple uplink resources respectively correspond to multiple second frequency domain resource groups, the multiple second downlink reference signals in the multiple second frequency domain resource groups occupy the same time domain resources.

[0447] According to embodiments of this disclosure, when the method satisfies a third condition, the transmit power of the second uplink channel / second uplink signal is determined based on the target receive power, the second downlink reference signal, and the first offset, wherein the third condition includes at least one of the following: the system information includes configuration information of the downlink reference signal in the second frequency domain resource group; the system information includes information related to the activation of the downlink reference signal in the second frequency domain resource group; the UE is configured with the downlink reference signal in the second frequency domain resource group; the UE is configured with the activation of the downlink reference signal in the second frequency domain resource group.

[0448] According to embodiments of this disclosure, when the method satisfies a fourth condition, the transmit power of the second uplink channel / second uplink signal is determined based on the target receive power, the first downlink reference signal, and the first offset, wherein the fourth condition includes at least one of the following: the system information does not include configuration information of the downlink reference signal in the second frequency domain resource group; the system information includes information related to the downlink reference signal in the second frequency domain resource group not being activated; the UE is not configured with the downlink reference signal in the second frequency domain resource group; the UE is not configured with the activation of the downlink reference signal in the second frequency domain resource group.

[0449] According to embodiments of this disclosure, the method further includes: receiving a first parameter in the first frequency domain resource group, wherein, if a fifth condition is met, the first parameter indicates the target received power of the second uplink channel / second uplink signal; and wherein, if a sixth condition is met, the first parameter indicates information related to the first offset, wherein the fifth condition includes at least one of the following: the system information includes configuration information of downlink reference signals in the second frequency domain resource group; the system information includes information related to the activation of downlink reference signals in the second frequency domain resource group; the UE is configured with downlink reference signals in the second frequency domain resource group; the UE is configured to activate downlink reference signals in the second frequency domain resource group; wherein the sixth condition includes at least one of the following: the system information does not include configuration information of downlink reference signals in the second frequency domain resource group; the system information includes information related to the non-activation of downlink reference signals in the second frequency domain resource group; the UE is not configured with downlink reference signals in the second frequency domain resource group; the UE is not configured to activate downlink reference signals in the second frequency domain resource group; the UE is configured to not activate downlink reference signals in the second frequency domain resource group.

[0450] Figure 28b A flowchart of a method 2810 performed by a user equipment (UE) in a wireless communication system according to an embodiment of the present disclosure is shown.

[0451] like Figure 28bAs shown, a method 2810 performed by a user equipment (UE) in a wireless communication system according to an embodiment of this disclosure may include: in step S2811, receiving a first downlink reference signal and system information in a first frequency domain resource group, wherein the system information includes a target received power and a first offset of a first uplink channel / first uplink signal in the first frequency domain resource group; in step S2812, receiving a ninth downlink channel / ninth downlink signal in the first frequency domain resource group, wherein the ninth downlink channel / ninth downlink signal indicates a second offset; and in step S2813, transmitting the ninth uplink channel / ninth uplink signal in a second frequency domain resource group. In some embodiments, when the start time unit of the ninth uplink channel / ninth uplink signal is earlier than t2 time units after the end time unit of the ninth downlink channel / ninth downlink signal, the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the first offset. In some implementations, when the start time unit of the ninth uplink channel / ninth uplink signal is not earlier than t2 units after the end time unit of the ninth downlink channel / ninth downlink signal, the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the first offset and the second offset, or the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the second offset.

[0452] Figure 29a A flowchart of a method 2900 performed by a base station in a wireless communication system according to an embodiment of the present disclosure is shown.

[0453] like Figure 29a As shown, a method 2900 performed by a base station in a wireless communication system according to an embodiment of this disclosure may include: in step S2901, transmitting a first downlink reference signal and system information in a first frequency domain resource group, wherein the system information includes a target received power of a first uplink channel / first uplink signal in the first frequency domain resource group; and in step S2902, receiving a seventh uplink channel / seventh uplink signal, wherein when the seventh uplink channel / seventh uplink signal occupies at least two frequency domain resource groups, the transmission power of the seventh uplink channel / seventh uplink signal is determined based on a first power and at least one second power. In some embodiments, the at least two frequency domain resource groups include a first frequency domain resource group and at least one second frequency domain resource group. In some embodiments, the first power is determined based on the target received power and the first downlink reference signal, and the second power is determined based on at least one of the following: based on the target received power, the first downlink reference signal, and a first offset; or based on the target received power, a second downlink reference signal received in a second frequency domain resource group, and the first offset.

[0454] According to embodiments of this disclosure, the first offset includes at least one of the following: an offset between the target received power of the first uplink channel / first uplink signal and the target received power of the second uplink channel / second uplink signal; an offset between the path loss of the first downlink frequency domain resource group determined based on the first downlink reference signal and the path loss of the second frequency domain resource group; an offset between the transmit power of the first uplink channel / first uplink signal and the transmit power of the second uplink channel / second uplink signal; an offset between the nominal transmit power of the first uplink channel / first uplink signal and the nominal transmit power of the second uplink channel / second uplink signal; and an offset between the transmit power of the first downlink reference signal in the first frequency domain resource group and the transmit power of the second downlink reference signal in the second frequency domain resource group.

[0455] According to embodiments of this disclosure, the method further includes: transmitting a first downlink channel / first downlink signal in at least one of the first frequency domain resource group and the second frequency domain resource group, wherein the first downlink channel / first downlink signal includes a second offset, wherein the second offset indicates an update of the first offset or indicates an adjustment of the first offset; and receiving a third uplink channel / third uplink signal in the second frequency domain resource group, wherein the transmission power of the third uplink channel / third uplink signal is determined based on the target reception power, the first downlink reference signal, and the second offset.

[0456] According to embodiments of this disclosure, the second power is determined based on at least one of the following: the target received power, the first downlink reference signal, the first offset, and the second offset; the target received power, the first downlink reference signal, and the second offset; the target received power, the second downlink reference signal, the first offset, and the second offset; or the target received power, the second downlink reference signal, and the second offset.

[0457] According to embodiments of this disclosure, the transmission power of the seventh uplink channel / seventh uplink signal is one of the minimum, maximum, and average values ​​of the first power and the second power.

[0458] According to an embodiment of this disclosure, the method further includes: receiving a fifth uplink signal in the first frequency domain resource group when a first condition is met, wherein the fifth uplink signal is used to request activation of the second downlink reference signal; wherein the first condition includes at least one of the following: the system information does not include parameters or information indicating the first offset; the system information includes configuration information of the downlink reference signals in the second frequency domain resource group; the system information includes configuration information of the downlink reference signals in the second frequency domain resource group, and all downlink reference signals in the second frequency domain resource group are inactive.

[0459] According to an embodiment of this disclosure, the method further includes: when a second condition is met, not receiving uplink transmissions on the second frequency domain resource group, wherein the second condition includes at least one of the following: the system information does not include configuration information of downlink reference signals in the second frequency domain resource group; the system information includes configuration information of downlink reference signals in the second frequency domain resource group, and all downlink reference signals in the second frequency domain resource group are in an inactive state.

[0460] According to embodiments of this disclosure, the method further includes: receiving the first uplink channel / first uplink signal in the first frequency domain resource group, wherein the second uplink channel / second uplink signal includes at least a second uplink reference signal, wherein the time domain resources of the second uplink reference signal satisfy at least one of the following: the first time unit occupied by the second uplink reference signal is the same as the start time unit of the first uplink channel / first uplink signal; the first time unit occupied by the second uplink reference signal is the same as the start time unit of the demodulation reference signal DMRS in the first uplink channel / first uplink signal; the time unit occupied by the second uplink reference signal is the same as the time unit occupied by the demodulation reference signal DMRS in the first uplink channel / first uplink signal.

[0461] According to an embodiment of this disclosure, the first uplink channel is a Physical Uplink Shared Channel (PUSCH) that includes message 3 for random access.

[0462] According to embodiments of this disclosure, the method further includes: transmitting an eighth downlink channel / eighth downlink signal, wherein the eighth downlink channel / eighth downlink signal includes a parameter indicating a second offset; wherein, if the eighth downlink channel / eighth downlink signal is not transmitted within t4 time units after the last time unit of the second uplink reference signal, at least one of the following is performed: treating the second offset as 0; determining the transmission power of the uplink channel / uplink signal in the second frequency domain resource group based on the first offset; and not receiving the uplink channel / uplink signal on the second frequency domain resource group.

[0463] According to an embodiment of this disclosure, the method further includes: receiving a fourth uplink channel / fourth uplink signal in the first frequency domain resource group, wherein the fourth uplink channel / fourth uplink signal includes at least one of a first actual transmission power of the first uplink channel / first uplink signal and a second actual transmission power of the second uplink channel / second uplink signal.

[0464] According to embodiments of this disclosure, the method further includes: transmitting configuration information associated with one or more preambles in a first frequency domain resource group, wherein the one or more preambles are respectively associated with one or more second frequency domain resource groups; receiving at least one preamble among the one or more preambles in the first frequency domain resource group; and transmitting at least one second downlink reference signal in at least one second frequency domain resource group corresponding to the at least one preamble, wherein, when multiple preambles are received and the multiple preambles respectively correspond to multiple second frequency domain resource groups, the multiple second downlink reference signals in the multiple second frequency domain resource groups occupy the same time domain resources.

[0465] According to embodiments of this disclosure, the method further includes: transmitting configuration information related to one or more uplink resources in a first frequency domain resource group, wherein the one or more uplink resources are respectively associated with one or more second frequency domain resource groups; receiving a preamble in at least one of the one or more uplink resources in the first frequency domain resource group; and transmitting at least one second downlink reference signal in at least one second frequency domain resource group corresponding to the at least one uplink resource, wherein when a preamble is received in multiple uplink resources and the multiple uplink resources respectively correspond to multiple second frequency domain resource groups, the multiple second downlink reference signals in the multiple second frequency domain resource groups occupy the same time domain resources.

[0466] According to embodiments of this disclosure, when a third condition is met, the transmit power of the second uplink channel / second uplink signal is determined based on the target receive power, the second downlink reference signal, and the first offset, wherein the third condition includes at least one of the following: the system information includes configuration information of the downlink reference signal in the second frequency domain resource group; the system information includes information related to the activation of the downlink reference signal in the second frequency domain resource group; the UE is configured with the downlink reference signal in the second frequency domain resource group; the UE is configured with the activation of the downlink reference signal in the second frequency domain resource group.

[0467] According to embodiments of this disclosure, when a fourth condition is met, the transmit power of the second uplink channel / second uplink signal is determined based on the target receive power, the first downlink reference signal, and the first offset, wherein the fourth condition includes at least one of the following: the system information does not include configuration information of the downlink reference signal in the second frequency domain resource group; the system information includes information related to the downlink reference signal in the second frequency domain resource group not being activated; the UE is not configured with the downlink reference signal in the second frequency domain resource group; the UE is not configured with the activation of the downlink reference signal in the second frequency domain resource group.

[0468] According to embodiments of this disclosure, the method further includes: transmitting a first parameter in the first frequency domain resource group, wherein, if a fifth condition is met, the first parameter indicates the target received power of the second uplink channel / second uplink signal; and wherein, if a sixth condition is met, the first parameter indicates information related to the first offset, wherein the fifth condition includes at least one of the following: the system information includes configuration information of downlink reference signals in the second frequency domain resource group; the system information includes information related to the activation of downlink reference signals in the second frequency domain resource group; the UE is configured with downlink reference signals in the second frequency domain resource group; the UE is configured to activate downlink reference signals in the second frequency domain resource group; wherein the sixth condition includes at least one of the following: the system information does not include configuration information of downlink reference signals in the second frequency domain resource group; the system information includes information related to the non-activation of downlink reference signals in the second frequency domain resource group; the UE is not configured with downlink reference signals in the second frequency domain resource group; the UE is not configured to activate downlink reference signals in the second frequency domain resource group; the UE is configured to not activate downlink reference signals in the second frequency domain resource group.

[0469] Embodiments of this disclosure provide a method performed by a user equipment (UE) in a wireless communication system, comprising: receiving a first downlink reference signal and system information in a first frequency domain resource group, wherein the system information includes a target received power and a first offset of a first uplink channel / first uplink signal in the first frequency domain resource group; receiving a ninth downlink channel / ninth downlink signal in the first frequency domain resource group, wherein the ninth downlink channel / ninth downlink signal indicates a second offset; and transmitting a ninth uplink channel / ninth uplink signal in a second frequency domain resource group, wherein the start time of the ninth uplink channel / ninth uplink signal is... If the start time of the ninth uplink channel / ninth uplink signal is earlier than t2 time units after the end time unit of the ninth downlink channel / ninth uplink signal, the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the first offset. If the start time unit of the ninth uplink channel / ninth uplink signal is not earlier than t2 time units after the end time unit of the ninth downlink channel / ninth uplink signal, the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the first offset and the second offset, or the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the second offset.

[0470] Figure 29b A flowchart of a method 2910 performed by a base station in a wireless communication system according to an embodiment of the present disclosure is shown.

[0471] like Figure 29bAs shown, method 2910 performed by a base station in a wireless communication system according to an embodiment of this disclosure may include: in step S2911, transmitting a first downlink reference signal and system information in a first frequency domain resource group, wherein the system information includes a target received power and a first offset of a first uplink channel / first uplink signal in the first frequency domain resource group; in step S2912, transmitting a ninth downlink channel / ninth downlink signal in the first frequency domain resource group, wherein the ninth downlink channel / ninth downlink signal indicates a second offset; and in step S2913, receiving a ninth uplink channel / ninth uplink signal in a second frequency domain resource group. In some embodiments, when the start time unit of the ninth uplink channel / ninth uplink signal is earlier than t2 time units after the end time unit of the ninth downlink channel / ninth downlink signal, the transmit power of the ninth uplink channel / ninth uplink signal is determined based on the first offset. In some implementations, when the start time unit of the ninth uplink channel / ninth uplink signal is not earlier than t2 units after the end time unit of the ninth downlink channel / ninth downlink signal, the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the first offset and the second offset, or the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the second offset.

[0472] It should be understood that methods 2800, 2810, 2900, and 2910, etc., according to embodiments of this disclosure may also include one or more of the methods or steps described above in conjunction with any examples, aspects, or drawings, which will not be repeated here.

[0473] Next, Figure 30 A schematic diagram of a user equipment UE 3000 in a wireless communication system according to an embodiment of the present disclosure is shown.

[0474] like Figure 30 As shown, a user equipment UE 3000 according to an embodiment of this disclosure may include a transceiver 3010 and a processor 3020. The transceiver 3010 may be configured to transmit and receive signals. The processor 3020 may be coupled to the transceiver 3010 and may be configured (e.g., to control the transceiver 3010) to perform any method performed by the user equipment UE in a wireless communication system according to an embodiment of this disclosure.

[0475] Figure 31 A schematic diagram of a base station 3100 in a wireless communication system according to an embodiment of the present disclosure is shown.

[0476] like Figure 31As shown, a base station 3100 according to an embodiment of the present disclosure may include a transceiver 3110 and a processor 3120. The transceiver 3110 may be configured to transmit and receive signals. The processor 3120 may be coupled to the transceiver 3110 and may be configured (e.g., to control the transceiver 3110) to perform any method performed by a base station in a wireless communication system according to an embodiment of the present disclosure.

[0477] In this article, a node may also be referred to as a node device. A processor may also be referred to as a controller. A network may refer to a base station or any other node on the network side.

[0478] Embodiments of this disclosure also provide a computer-readable medium having computer-readable instructions stored thereon, which, when executed by a processor, can be used to implement any method according to embodiments of this disclosure.

[0479] Various embodiments of this disclosure can be implemented as computer-readable code embodied on a computer-readable recording medium from a particular perspective. A computer-readable recording medium is any data storage device capable of storing data readable by a computer system. Examples of computer-readable recording media may include read-only memory (ROM), random access memory (RAM), optical disc read-only memory (CD-ROM), magnetic tape, floppy disk, optical data storage device, carrier wave (e.g., data transmission via the Internet), and the like. Computer-readable recording media can be distributed via computer systems connected via a network, and thus computer-readable code can be stored and executed in a distributed manner. Furthermore, the functional programs, code, and code segments used to implement the various embodiments of this disclosure can be readily interpreted by those skilled in the art applying the embodiments of this disclosure.

[0480] It will be understood that embodiments of this disclosure can be implemented in hardware, software, or a combination of hardware and software. Software can be stored as processor-executable program instructions or computer-readable code on a non-transitory computer-readable medium. Examples of non-transitory computer-readable recording media include magnetic storage media (e.g., ROM, floppy disk, hard disk, etc.) and optical recording media (e.g., CD-ROM, digital video disc (DVD), etc.). Non-transitory computer-readable recording media can also be distributed across a network-coupled computer system, such that the computer-readable code is stored and executed in a distributed manner. The medium can be read by a computer, stored in memory, and executed by a processor. Various embodiments can be implemented by a computer or a portable terminal including a controller and memory, and the memory can be an example of a non-transitory computer-readable recording medium suitable for storing a program(s) having instructions for implementing embodiments of this disclosure. This disclosure can be implemented by a program having code for specifically implementing the apparatus and methods described in the claims, the program being stored in a machine (or computer)-readable storage medium. The program can be carried electronically on any medium, such as communication signals transmitted via wired or wireless connections, and this disclosure suitably includes its equivalents.

[0481] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any person skilled in the art can make various changes or substitutions within the technical scope disclosed in this disclosure, and such changes or substitutions should all be covered within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A method performed by a user equipment (UE) in a wireless communication system, comprising: A first downlink reference signal and system information are received in a first frequency domain resource group, wherein the system information includes the target received power of a first uplink channel / first uplink signal in the first frequency domain resource group; and The seventh uplink channel / seventh uplink signal is transmitted. When the seventh uplink channel / seventh uplink signal occupies at least two frequency domain resource groups, the transmission power of the seventh uplink channel / seventh uplink signal is determined based on a first power and at least one second power. The at least two frequency domain resource groups include a first frequency domain resource group and at least one second frequency domain resource group; Wherein, the first power is determined based on the target received power and the first downlink reference signal, and the second power is determined based on at least one of the following: Based on the target received power, the first downlink reference signal, and the first offset; The target received power is determined based on the second downlink reference signal received in the second frequency domain resource group and the first offset.

2. The method according to claim 1, wherein, The first offset includes at least one of the following: The offset between the target received power of the first uplink channel / first uplink signal and the target received power of the second uplink channel / second uplink signal; The offset between the path loss of the first downlink frequency domain resource group and the path loss of the second frequency domain resource group determined based on the first downlink reference signal; The offset between the transmission power of the first uplink channel / first uplink signal and the transmission power of the second uplink channel / second uplink signal; The offset between the nominal transmit power of the first uplink channel / first uplink signal and the nominal transmit power of the second uplink channel / second uplink signal; The offset between the transmission power of the first downlink reference signal in the first frequency domain resource group and the transmission power of the second downlink reference signal in the second frequency domain resource group.

3. The method according to claim 1, further comprising: Receive a first downlink channel / first downlink signal in at least one of the first frequency domain resource group and the second frequency domain resource group, wherein the first downlink channel / first downlink signal includes a second offset, wherein the second offset indicates an update of the first offset or indicates an adjustment of the first offset; and A third uplink channel / third uplink signal is transmitted in the second frequency domain resource group, wherein the transmission power of the third uplink channel / third uplink signal is determined based on the target received power, the first downlink reference signal, and the second offset.

4. The method according to claim 3, wherein, The second power is determined based on at least one of the following: The target received power, the first downlink reference signal, the first offset, and the second offset; The target received power, the first downlink reference signal, and the second offset; The target received power, the second downlink reference signal, the first offset, and the second offset; The target received power, the second downlink reference signal, and the second offset.

5. The method according to any one of claims 1-4, wherein, The transmission power of the seventh uplink channel / seventh uplink signal is one of the minimum, maximum, and average values ​​of the first power and the second power.

6. The method according to claim 1, further comprising: When the first condition is met, a fifth uplink signal is sent in the first frequency domain resource group, wherein the fifth uplink signal is used to request the activation of the second downlink reference signal; The first condition includes at least one of the following: The system information does not include parameters or information indicating the first offset; The system information includes the configuration information of the downlink reference signal in the second frequency domain resource group; The system information includes the configuration information of the downlink reference signals in the second frequency domain resource group, and all downlink reference signals in the second frequency domain resource group are in an inactive state.

7. The method according to claim 1, further comprising: When the second condition is met, uplink transmission will not be performed on the second frequency domain resource group. The second condition includes at least one of the following: The system information does not include the configuration information of the downlink reference signal in the second frequency domain resource group; The system information includes the configuration information of the downlink reference signals in the second frequency domain resource group, and all downlink reference signals in the second frequency domain resource group are in an inactive state.

8. The method according to claim 1, further comprising: Transmit the first uplink channel / first uplink signal in the first frequency domain resource group. The second uplink channel / second uplink signal includes at least a second uplink reference signal. Wherein, the time-domain resources of the second uplink reference signal satisfy at least one of the following: The first time unit occupied by the second uplink reference signal is the same as the start time unit of the first uplink channel / first uplink signal; The first time unit occupied by the second uplink reference signal is the same as the start time unit of the demodulation reference signal DMRS in the first uplink channel / first uplink signal; The time unit occupied by the second uplink reference signal is the same as the time unit occupied by the demodulation reference signal DMRS in the first uplink channel / first uplink signal.

9. The method according to claim 8, wherein, The first uplink channel is the Physical Uplink Shared Channel (PUSCH), which includes message 3 for random access.

10. The method of claim 8, further comprising: Receive an eighth downlink channel / eighth downlink signal, wherein the eighth downlink channel / eighth downlink signal includes a parameter indicating a second offset; If the eighth downlink channel / eighth downlink signal is not received within t4 time units after the last time unit of the second uplink reference signal, at least one of the following shall be performed: Treat the second offset as 0; The transmission power of the uplink channel / uplink signal in the second frequency domain resource group is determined based on the first offset; Do not transmit uplink channels / uplink signals on the second frequency domain resource group.

11. The method according to claim 1, further comprising: Transmit a fourth uplink channel / fourth uplink signal in the first frequency domain resource group, wherein the fourth uplink channel / fourth uplink signal includes at least one of the first actual transmission power of the first uplink channel / first uplink signal and the second actual transmission power of the second uplink channel / second uplink signal.

12. The method of claim 6, further comprising: In the first frequency domain resource group, configuration information associated with one or more preambles is received, wherein the one or more preambles are respectively associated with one or more second frequency domain resource groups; Transmit at least one of the one or more preambles in the first frequency domain resource group; and At least one second downlink reference signal is received in at least one second frequency domain resource group corresponding to the at least one preamble. In the case where the UE sends multiple preambles, and the multiple preambles correspond to multiple second frequency domain resource groups respectively, the multiple second downlink reference signals in the multiple second frequency domain resource groups occupy the same time domain resources.

13. The method of claim 6, further comprising: In the first frequency domain resource group, configuration information related to one or more uplink resources is received, wherein the one or more uplink resources are respectively associated with one or more second frequency domain resource groups; In the first frequency domain resource group, a preamble is transmitted in at least one of the one or more uplink resources; and Receive at least one second downlink reference signal in at least one second frequency domain resource group corresponding to the at least one uplink resource. In the case where the UE transmits a preamble on multiple uplink resources, and the multiple uplink resources correspond to multiple second frequency domain resource groups respectively, the multiple second downlink reference signals in the multiple second frequency domain resource groups occupy the same time domain resources.

14. The method according to claim 1, wherein, When the third condition is met, the transmit power of the second uplink channel / second uplink signal is determined based on the target receive power, the second downlink reference signal, and the first offset. The third condition includes at least one of the following: The system information includes the configuration information of the downlink reference signal in the second frequency domain resource group; The system information includes information related to the activation of downlink reference signals in the second frequency domain resource group; The UE is configured with a downlink reference signal in the second frequency domain resource group; The UE is configured to activate the downlink reference signal in the second frequency domain resource group.

15. A method performed by a base station in a wireless communication system, comprising: Transmit a first downlink reference signal and system information in a first frequency domain resource group, wherein the system information includes the target received power of a first uplink channel / first uplink signal in the first frequency domain resource group; and When receiving a seventh uplink channel / seventh uplink signal, and the seventh uplink channel / seventh uplink signal occupies at least two frequency domain resource groups, the transmission power of the seventh uplink channel / seventh uplink signal is determined based on a first power and at least one second power. The at least two frequency domain resource groups include a first frequency domain resource group and at least one second frequency domain resource group; Wherein, the first power is determined based on the target received power and the first downlink reference signal, and the second power is determined based on at least one of the following: Based on the target received power, the first downlink reference signal, and the first offset; The target received power is determined based on the second downlink reference signal received in the second frequency domain resource group and the first offset.

16. A method performed by a user equipment (UE) in a wireless communication system, comprising: A first downlink reference signal and system information are received in a first frequency domain resource group, wherein the system information includes the target received power and a first offset of a first uplink channel / first uplink signal in the first frequency domain resource group; Receive a ninth downlink channel / ninth downlink signal in the first frequency domain resource group, wherein the ninth downlink channel / ninth downlink signal indicates a second offset; and The ninth uplink channel / ninth uplink signal is transmitted in the second frequency domain resource group. Where, in the case that the start time unit of the ninth uplink channel / ninth uplink signal is earlier than the end time unit of the ninth downlink channel / ninth downlink signal by t2 time units, the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the first offset, and Wherein, if the start time unit of the ninth uplink channel / ninth uplink signal is not earlier than t2 units after the end time unit of the ninth downlink channel / ninth downlink signal, the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the first offset and the second offset, or the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the second offset.

17. A method performed by a base station in a wireless communication system, comprising: Transmit a first downlink reference signal and system information in a first frequency domain resource group, wherein the system information includes the target received power and a first offset of a first uplink channel / first uplink signal in the first frequency domain resource group; Transmit a ninth downlink channel / ninth downlink signal in the first frequency domain resource group, wherein the ninth downlink channel / ninth downlink signal indicates a second offset; and Receive the ninth uplink channel / ninth uplink signal in the second frequency domain resource group. Where, in the case that the start time unit of the ninth uplink channel / ninth uplink signal is earlier than the end time unit of the ninth downlink channel / ninth downlink signal by t2 time units, the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the first offset, and Wherein, if the start time unit of the ninth uplink channel / ninth uplink signal is not earlier than t2 units after the end time unit of the ninth downlink channel / ninth downlink signal, the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the first offset and the second offset, or the transmission power of the ninth uplink channel / ninth uplink signal is determined based on the second offset.

18. A user equipment (UE) in a wireless communication system, comprising: A transceiver is configured to send and receive signals; as well as A controller, coupled to the transceiver and configured to perform the method as described in any one of claims 1-14 or 16.

19. A base station in a wireless communication system, comprising: A transceiver is configured to send and receive signals; as well as A controller, coupled to the transceiver and configured to perform the method as described in any one of claims 15 or 17.

20. A computer-readable medium having stored thereon computer-readable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1-14, 16, 15, or 17.

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