Reference Signal Resource Management for Fast Panel Switching and Antenna Switching

Abstract

Methods, apparatuses, and systems for reference signal resource management are disclosed to enable fast panel switching and antenna switching of a wireless device having multiple panels. In one exemplary aspect, a wireless communication method includes a wireless device receiving configuration parameters from a base station. The method further includes the wireless device transmitting sounding reference signals (SRS) to the base station according to an SRS procedure, where one or more resource sets are determined according to the configuration parameters.

Description

Technical Field

[0001] This patent application generally relates to wireless communication. Background Art

[0002] Mobile communication technology is pushing the world towards an increasingly interconnected and networked society. The rapid growth of mobile communication and the progress of technology have led to a greater demand for capacity and connectivity. Other aspects, such as energy consumption, device cost, spectral efficiency, and latency, are also important for meeting the requirements of various communication scenarios. Currently, various technologies are being discussed, including new methods for providing higher quality of service, longer battery life, and improved performance. Summary of the Invention

[0003] Among other things, this patent application describes techniques related to reference signal resource management to enable fast panel switching and antenna switching in a wireless device (e.g., a transmit / receive entity) having multiple panels.

[0004] In one example aspect, a wireless communication method is disclosed. The method includes a wireless device receiving configuration parameters from a base station. The method also includes the wireless device sending a sounding reference signal (SRS) to the base station according to a sounding reference signal (SRS) procedure, where one or more resource sets are determined according to the configuration parameters.

[0005] In another example aspect, a wireless communication method is disclosed. The method includes a base station sending configuration parameters to a wireless device. The method also includes the base station receiving a sounding reference signal (SRS) from the base station, where one or more resource sets are determined according to the configuration parameters.

[0006] In another example aspect, a communication device is disclosed. The device includes a processor configured to implement the above method.

[0007] In yet another example aspect, a computer program storage medium is disclosed. The computer program storage medium includes code stored thereon. The code, when executed by a processor, causes the processor to implement the described method.

[0008] These and other aspects are described in this application. Brief Description of the Drawings

[0009] Figure 1 Shows an example of a beamforming training process in a single transmit / receive point (TRP) and a single panel scenario.

[0010] Figure 2 Shows an example of multi-panel transmission in a multi-TRP scenario.

[0011] Figure 3Shows an example framework of SRS transmission in the sounding reference signal (SRS) process according to the present technology.

[0012] Figure 4A Shows an example in-panel antenna switching scenario according to the present technology.

[0013] Figure 4B Shows an example inter-panel antenna switching scenario according to the present technology.

[0014] Figure 5A Is a flowchart representation of a wireless communication method according to the present technology.

[0015] Figure 5B Is a flowchart representation of another wireless communication method according to the present technology.

[0016] Figure 6 Shows an example of organizing SRS resources for the SRS process according to the present technology.

[0017] Figure 7 Shows an example of triggering the SRS process according to the present technology.

[0018] Figure 8 Shows an example of single-beam inter-panel antenna switching according to the present technology.

[0019] Figure 9 Shows an example of multi-beam inter-panel antenna switching according to the present technology.

[0020] Figure 10 Shows another example of multi-beam inter-panel antenna switching according to the present technology.

[0021] Figure 11 Shows an example of a wireless communication system in which the techniques according to one or more embodiments of the present technology can be applied.

[0022] Figure 12 Is a block diagram representation of a part of a wireless station according to one or more embodiments of the present technology. Detailed Description

[0023] The section headings are used in this application only for readability and do not limit the scope of the embodiments and techniques disclosed in each section to that section. Examples using the fifth-generation (5G) wireless protocol are used to describe certain features. However, the applicability of the disclosed technology is not limited to 5G wireless systems.

[0024] With the advancement of wireless communication technologies, high-frequency communication using wide or ultra-wide spectrum resources (e.g., channels up to 20 MHz) has become common. The significant propagation loss caused by extremely high frequencies now poses a prominent challenge. To address this issue, antenna arrays and beamforming training techniques based on massive multiple-input multiple-output (MIMO) technology have been adopted, e.g., using up to 1024 antenna elements for a communication node to achieve beam alignment and obtain a sufficiently high antenna gain.

[0025] Due to the low implementation cost, analog phase shifters are widely used to implement millimeter-wave beamforming. The number of controllable phases is limited, and a constant modulus constraint is set on the antenna elements. Considering a pre-specified beam pattern, beamforming training identifies the best pattern for subsequent data transmission. Current communication systems are designed for scenarios where there is only a single panel in a user equipment (UE). That is, the UE has a single antenna group, antenna port group, beam group, subarray, transmit entity / unit, or receive entity / unit. Figure 1 An example of a beamforming training process 100 in a transmit / receive point (TRP) and a single-panel scenario is shown. As Figure 1 shown, the UE can only receive or transmit one downlink or uplink transmission beam at a given time.

[0026] In a 5G new radio (NR) communication system, beamforming is indicated in both downlink (DL) and uplink (UL) transmissions. Such an indication is also referred to as beam indication. For UL transmission, spatial relation information (e.g., spatialRelationInfo) is introduced to support beam indication and sounding reference signals (SRS) for the UL control channel (e.g., physical uplink control channel (PUCCH)). The beam indication for the UL data channel (e.g., physical uplink shared channel (PUSCH)) is achieved through the mapping between one or more SRS resources and the antenna ports of the UL data channel. Thus, the beam configuration of the UL data channel can be derived from the spatial relation information and the association / mapping information between the SRS resources and their antenna ports.

[0027] Within the UE panel, antenna switching is performed through SRS transmission to obtain channel state information (CSI) according to channel reciprocity. The current UE antenna switching mechanism is also designed for a single active panel, which means that the SRS resources used for antenna switching have the same spatial relation, e.g., based on only one uplink beam and / or only one UE panel.

[0028] Figure 2Shows an example of multi-panel transmission 200 in a multi-TRP scenario. The first cell 201 has four panels. The first cell 201 can perform beam scanning on each of its panels. The second cell 203 has only one panel. The UE 205 communicating with the two cells 201, 203 has two panels. The UE can similarly perform beam scanning on each of its panels. Multiple communication links can be established between the UE and the base station. For example, the UE maintains two communication links 211, 212 with the first cell 201 and one communication link 213 with the second cell 203. At a given time, there can be multiple active DL panels, but only one active UL panel. Currently, when as Figure 2 shown the UE has multiple panels, how the UE activates or deactivates its panels is not well defined.

[0029] The sounding reference signal (SRS) is a reference signal sent by the UE (e.g., in the uplink direction) to the network, and the base station uses this reference signal to estimate the uplink channel characteristics over the bandwidth. The base station can use this information for uplink frequency selective scheduling. The sounding reference signal (SRS) process is usually configured by the base station. The SRS process can include uplink transmission and / or a measurement process based on the SRS transmission. The UE sends the SRS to the base station so that the base station can detect and measure the uplink channel. Considering the downlink and uplink channel reciprocity, antenna switching based on the SRS process can also be used for DL-CSI acquisition. In this application, the antenna switching process also includes DL-CSI acquisition.

[0030] Figure 3 Shows an example framework 300 for SRS transmission in the SRS process according to the present technology. The configuration information from the base station can at least indicate the following:

[0031] 1. One or more uses (301) of one or more SRS transmissions. The SRS transmission can have one or more uses, including but not limited to beam management, codebook transmission, non-codebook transmission, and antenna switching.

[0032] 2. Panel switching (303). For example, if the UE supports multiple panels, the UE can report its capabilities so that the base station can indicate panel switching through spatial relationships or panel identifiers (IDs).

[0033] 3. How to distinguish UE ports and / or port groups in antenna switching (305). For example, the base station can configure different resources and / or resource sets to indicate the mapping between UE ports and / or port groups and resources.

[0034] 4. Time domain behavior of SRS transmission (307). For example, the base station may indicate the time domain behavior (e.g., non-periodic, semi-static, periodic) based on attributes such as one or more resource types.

[0035] There are two typical cases for antenna switching: in-panel antenna switching and inter-panel antenna switching. Figure 4A An example in-panel antenna switching scenario according to the present technology is shown. As Figure 4A shown, the UE supports two receive (Rx) chains (Rx chain A 401 and Rx chain B 402), and a transmit (Tx) chain Tx chain 403. The UE performs antenna switching from antenna port A 404 to antenna port B 405 in the UE panel. In in-panel antenna switching, SRS transmissions of different UE antenna ports may share the same one or more UL power control parameters and / or the same spatial relationship (e.g., two UE antenna ports 404, 405 correspond to the same positive or negative polarization). The power control parameters include target power, path loss or coupling loss reference signal, proportional factor of path loss or coupling loss, or closed-loop process.

[0036] Figure 4B An example inter-panel antenna switching scenario according to the present technology is shown. In Figure 4B it, the UE also supports two Rx chains (Rx chain A 451 and Rx chain B 452), and Tx chain 403. The UE has two panels 461, 462. The UE performs panel and antenna switching from antenna port 1 of panel 461 to antenna port 2 of panel 462. In inter-panel antenna switching, considering that each UE panel may experience different physical channels, SRS transmissions of different UE antenna ports may correspond to different one or more UL power control parameters and / or different one or more spatial relationships.

[0037] Multiple SRS resource sets may be configured for one or more sounding procedures. From the perspective of the UE, it needs to identify the association between one or more configured SRS resource sets and the sounding procedures. In addition, there may be separate requirements determined based on UE capabilities (e.g., time domain protection periods for in-panel and inter-panel switching).

[0038] This patent application discloses techniques that can be implemented in various embodiments to provide a framework for reference signal resource configuration and sub-sequence uplink data transmission, thereby reducing the latency of UE panel switching and improving the robustness of blocking and / or maximum power exposure (MPE) in fast UE panel switching and antenna switching. Figure 5AIt is a flowchart representation of a wireless communication method 500 according to the present technology. At operation 510, the method 500 includes a wireless device receiving configuration parameters from a base station. The method 500 further includes, at operation 520, the wireless device transmitting a sounding reference signal (SRS) to the base station according to an SRS procedure, wherein one or more resource sets are determined from a plurality of resource sets according to the configuration parameters.

[0039] In some embodiments, one or more resource sets are organized in one or more groups. In some embodiments, one or more resource sets or resources in one or more resource sets are associated with the same configuration parameters. In some embodiments, the configuration parameters include an indicator indicating the association of one or more resource sets. In some embodiments, the configuration parameters extend to a plurality of parameters that indicate at least one of the following: time domain characteristics, the number of antenna ports corresponding to resources in each of one or more resource sets, the number of resources in each of one or more resource sets, a trigger state, a resource type, a bandwidth part, a component carrier, a transmission state, a spatial relationship, a panel, the number of transmit and receive antennas, or a power control parameter.

[0040] In some embodiments, resources from different resource sets among one or more resource sets correspond to different antenna ports or port groups of a mobile device. In some embodiments, resources from the same resource set or the same resource group among one or more resource sets correspond to different antenna ports or port groups of a mobile device. In some embodiments, the resources correspond to the same transmission state or the same panel.

[0041] In some embodiments, the method further includes the mobile device receiving a message from the base station for triggering the SRS procedure. The time domain offset between receiving the message and transmitting the sounding reference signal is less than or equal to a first threshold. In some embodiments, resources of at least one of the one or more resource sets correspond to the same panel or the same transmission state. In some embodiments, the method includes the mobile device receiving a message from the base station for triggering the SRS procedure. The time domain offset between receiving the message and transmitting the sounding reference signal is greater than or equal to a second threshold. In some embodiments, resources of at least one of the one or more resource sets correspond to different panels or different transmission states. In some embodiments, the first threshold or the second threshold is configured by the base station or determined according to the capabilities of the mobile device.

[0042] In some embodiments, at least one of one or more resource sets is used for a first use and / or a second use. The first use includes an antenna switching use or a beam management use, while the second use includes a codebook transmission use or a non-codebook transmission use. In some embodiments, all resources of at least one resource set are associated with the same panel or the same transmission state. In some embodiments, a subset of one or more resource sets located at the start or end of an SRS transmission is applicable to uplink data transmission, or for a codebook transmission use or a non-codebook transmission use. In some embodiments, a subset of one or more resource sets having the N lowest or highest indices is applicable to uplink data transmission, or for a codebook transmission use or a non-codebook transmission use. N is a positive integer.

[0043] In some embodiments, a guard period is applied between a first resource and a second resource. The first resource and the second resource correspond to different panels, the same transmission state, and / or different resource sets, and wherein no signal is transmitted during the guard period. In some embodiments, resources in a resource set are positioned without any guard period between each other. These resources correspond to the same resource set, the same panel, and / or different transmission states. In some embodiments, a guard period is excluded between a first resource and a second resource. The first resource and the second resource correspond to the same resource set, the same panel, and / or different transmission states. In some embodiments, a guard period is excluded between a first resource and a second resource. The first resource and the second resource correspond to different resource sets.

[0044] In some embodiments, resources in at least one of one or more resource sets correspond to the same transmission state or the same panel. In some embodiments, resources in at least one of one or more resource sets correspond to different transmission states or different panels. In some embodiments, the resources correspond to different ports or port groups of a mobile device. In some embodiments, resources in at least one of one or more resource sets are associated with different panels. In some embodiments, resources in at least one of one or more resource sets are associated with the same panel. In some embodiments, a first resource in a first resource set has the same transmission state or the same panel as a corresponding second resource in a second resource set. In some embodiments, a first resource set in a first group has the same transmission state or the same panel as a corresponding second resource set in a second resource group.

[0045] In some embodiments, the capabilities of the mobile device indicate that resources in at least one of one or more resource sets support different transmission states. In some embodiments, the number of different ports or port groups for the same transmission state is a predefined value or determined based on the capabilities of the mobile device. In some embodiments, the number of resources associated with the same transmission state or the same panel is a predefined value or determined according to the capabilities of the mobile device. In some embodiments, the number of resources associated with different transmission states or different panels is a predefined value or determined according to the capabilities of the mobile device. In some embodiments, the number of resources is determined based on an antenna indicator indicating the number of transmit antennas and receive antennas.

[0046] Figure 5B is a flowchart representation of a wireless communication method 550 according to the present technology. At operation 560, method 550 includes a base station sending configuration parameters to a wireless device. Method 550 further includes, at operation 570, the base station receiving a sounding reference signal (SRS) of the base station according to an SRS procedure, wherein one or more resource sets from a plurality of resource sets are determined according to the configuration parameters.

[0047] In some embodiments, one or more resource sets are organized in one or more groups. In some embodiments, one or more resource sets or resources in one or more resource sets are associated with the same configuration parameters. In some embodiments, the configuration parameters include an indicator indicating the association of one or more resource sets. In some embodiments, the configuration parameters extend to a plurality of configuration parameters that indicate at least one of the following: time domain characteristics, the number of antenna ports corresponding to resources in each of one or more resource sets, the number of resources in each of one or more resource sets, trigger states, resource types, bandwidth parts, component carriers, transmission states, spatial relationships, panels, the number of transmit antennas and receive antennas, or power control parameters.

[0048] In some embodiments, resources from different resource sets among one or more resource sets correspond to different antenna ports or port groups of a mobile device. In some embodiments, resources from the same resource set or the same resource group among one or more resource sets correspond to different antenna ports or port groups of a mobile device. In some embodiments, the resources correspond to the same transmission state or the same panel. In some embodiments, the method includes a base station sending a message to the mobile device for triggering an SRS procedure. The time domain offset between the mobile device receiving the message and transmitting a sounding reference signal is less than or equal to a first threshold. In some embodiments, resources of at least one of the one or more resource sets correspond to the same panel or the same transmission state. In some embodiments, the method includes a base station sending a message to the mobile device for triggering an SRS procedure. The time domain offset between the mobile device receiving the message and transmitting a sounding reference signal is greater than or equal to a second threshold. In some embodiments, resources of at least one of the one or more resource sets correspond to different panels or different transmission states. In some embodiments, the first threshold or the second threshold is configured by the base station or determined according to the capabilities of the mobile device.

[0049] In some embodiments, at least one resource set among one or more resource sets is for a first use and / or a second use. The first use includes an antenna switching use or a beam management use, while the second use includes a codebook transmission use or a non-codebook transmission use. In some embodiments, all resources of at least one resource set are associated with the same panel or the same transmission state. In some embodiments, a subset of one or more resource sets located at the start or end of an SRS transmission is applicable to uplink data transmission, or for a codebook transmission use or a non-codebook transmission use. In some embodiments, a subset of one or more resource sets having the N lowest or highest indexes is applicable to uplink data transmission, or for a codebook transmission use or a non-codebook transmission use. N is a positive integer.

[0050] In some embodiments, a guard period is applied between a first resource and a second resource. The first resource and the second resource correspond to different panels, the same transmission state, and / or different resource sets, and no signal is transmitted during the guard period. In some embodiments, resources in a resource set are positioned without any guard period between each other. These resources correspond to the same resource set, the same panel, and / or different transmission states. In some embodiments, the guard period is excluded between a first resource and a second resource. The first resource and the second resource correspond to the same resource set, the same panel, and / or different transmission states. In some embodiments, the guard period is excluded between a first resource and a second resource. The first resource and the second resource correspond to different resource sets.

[0051] In some embodiments, resources in at least one of one or more resource sets correspond to the same transmission state or the same panel. In some embodiments, resources in at least one of one or more resource sets correspond to different transmission states or different panels. In some embodiments, resources correspond to different ports or port groups of a mobile device. In some embodiments, resources in at least one of one or more resource sets are associated with different panels. In some embodiments, resources in at least one of one or more resource sets are associated with the same panel. In some embodiments, a first resource in a first resource set has the same transmission state or the same panel as a corresponding second resource in a second resource set. In some embodiments, a first resource set in a first group has the same transmission state or the same panel as a corresponding second resource set in a second resource group.

[0052] In some embodiments, the capabilities of a mobile device indicate that resources in at least one of one or more resource sets support different transmission states. In some embodiments, the number of different ports or port groups for the same transmission state is a predefined value or is determined based on the capabilities of the mobile device. In some embodiments, the number of resources associated with the same transmission state or the same panel is a predefined value or is determined according to the capabilities of the mobile device. In some embodiments, the number of resources associated with different transmission states or different panels is a predefined value or is determined according to the capabilities of the mobile device. In some embodiments, the number of resources is determined based on an antenna indicator indicating the number of transmit and receive antennas.

[0053] Some examples of the disclosed technology are further described in the following example embodiments. Note that the transmission state includes at least one of the following: quasi - co - located (QCL) state, transmission configuration indicator (TCI) state, spatial relationship (also referred to as spatial relationship information), reference signal (RS), spatial filter, or precoding. The transmission state may also be referred to as a beam. The transmission state identifier (ID) includes at least one of a QCL state index, a TCI state index, a spatial relationship index, a reference signal index, a spatial filter index, or a precoding index. Specifically, a spatial filter (also referred to as a spatial domain filter) may be located on the UE side or the base station side, and the spatial filter is also referred to as a spatial domain filter. It should also be noted that the spatial relationship information includes one or more reference RSs, which are used to represent the same spatial relationship or quasi - co - spatial relationship between a target reference or channel and one or more reference signals. The spatial relationship includes a beam, spatial parameters, and / or a spatial domain filter. The QCL state in this application may be used interchangeably with the transmission configuration indicator (TCI) state, and the TCI state includes one or more reference RSs and their corresponding QCL type parameters, such as Doppler spread, Doppler shift, delay spread, average delay, average gain, and spatial parameters (also referred to as spatial Rx parameters). The QCL state may include the following types:

[0054] - ‘QCL-TypeA’: {Doppler shift, Doppler spread, average delay, delay spread}

[0055] - ‘QCL-TypeB’: {Doppler shift, Doppler spread}

[0056] - ‘QCL-TypeC’: {Doppler shift, average delay}

[0057] - ‘QCL-TypeD’: {Spatial Rx parameter}

[0058] Although the discussion in this article focuses on sounding reference signals, these techniques can also be applied to processes related to other types of reference signals, including channel state information reference signals (CSI-RS), synchronization signal blocks (SSB) (also known as SS / PBCH), demodulation reference signals (DMRS), sounding reference signals (SRS), or physical random access channels (PRACH). Specifically, uplink (UL) signals include sounding reference signals or other signals transmitted on the physical random access channel (PRACH), physical uplink control channel (PUCCH), or physical uplink shared channel (PUSCH). Downlink (DL) signals include CSI-RS, SSB, or other types of signals transmitted on the physical downlink control channel (PDCCH) or physical downlink shared channel (PDSCH). As mentioned above, a panel refers to a group of antennas, a group of antenna ports, a group of beams, a subarray, a transmission entity / unit, and / or a receiving entity / unit. A time unit can be a sub-symbol, a symbol, a time slot, a sub-frame, a frame, a monitoring occasion, or a transmission occasion. In addition, an "excluded guard period" is equivalent to a "guard period with a value of zero".

[0059] Embodiment 1

[0060] SRS resources can be organized in one or more resource sets. Figure 6 An example 600 of organizing SRS resources for an SRS process according to the present technology is shown. The SRS process can use one or more SRS resource sets. Each resource set can include multiple SRS resources, and each SRS resource can have multiple configured ports or port groups. In some embodiments, the SRS resource sets can also be organized into one or more groups.

[0061] When a UE attempts to establish a connection with a base station, the UE reports its capabilities, including SRS-related information. For example, the UE may indicate its capabilities to support different one or more spatial relationships, one or more transmission states, and / or one or more panels in an SRS resource set and / or SRS resources. In some embodiments, the number of different one or more spatial relationships, one or more transmission states, and / or one or more panels is a predefined number. In some embodiments, the number of different one or more spatial relationships, one or more transmission states, and / or one or more panels is a predefined number and also the UE capabilities. The UE may also indicate the number of different ports or port groups of the same spatial relationship / same panel that it can support. Alternatively and / or additionally, the number of different ports or port groups under the same spatial relationship / same panel is a predefined value.

[0062] Then, the base station sends SRS configuration information to the UE based on the UE's capabilities. The configuration information may include one or more configuration parameters to configure SRS resources and / or resource sets. After the UE receives the configuration information, the UE determines one or more SRS resource sets for the SRS process (e.g., for beam management, codebook transmission, non-codebook transmission, and / or antenna switching) according to the configuration information. The UE may make such a determination based on the association of one or more SRS resource sets (or resources in one or more SRS resource sets) indicated in the configuration information.

[0063] In some embodiments, one or more resource sets are configured with the same indicator, such as a flag or a parameter index (e.g., procedureIndex). The UE may determine the resource sets having the same indicator associated with the same SRS process.

[0064] In some embodiments, one or more resource sets are configured with the same transmission parameter or the same multiple transmission parameters. The transmission parameters include at least one of the following: trigger state, time-domain characteristics of the SRS, resource type, bandwidth part (BWP) indicator, component carrier (CC) indicator, transmission state indicator, spatial relationship information, panel indicator, or antenna indicator, such as "xTyR", where x and y are positive integers indicating the number of transmit chains and receive chains. For example, if one or more SRS resource sets are configured with the same resource type, the same BWP / CC, the same spatial relationship, and / or the same antenna indicator (e.g., xTyR), the UE may determine that one or more SRS resource sets are available for the SRS process using antenna switching. As another example, one or more SRS resource sets are configured with the same time-domain characteristics (e.g., semi-static), the same BWP / CC, and the same panel. The UE may determine that one or more SRS resource sets are available for the SRS process using codebook transmission or non-codebook transmission.

[0065] In some embodiments, rules may be specified to associate one or more SRS resource sets. For example, when one or more of the following conditions are met, the rule may specify that the SRS resource set is associated with antenna switching:

[0066] 1. The SRS resource set is configured with the same time domain characteristics.

[0067] 2. The resources in the SRS resource set are configured with the same number of SRS ports or port groups.

[0068] 3. The SRS resource set is configured to have the same number of SRS resources in each set.

[0069] 4. The SRS resource set is configured with the same one or more trigger states.

[0070] 5. The SRS resource set is configured with the same antenna indicator. For example, the antenna indicator may be in the form of the parameter "xTyR", where x and y are positive integers indicating the number of transmit chains and receive chains.

[0071] 6. The SRS resource set is configured with the same spatial relationship, the same transmission state, and / or the same panel. The rule may further specify that the SRS ports or port groups of each SRS resource are associated with different UE antenna ports.

[0072] 7. The SRS resource sets may be organized into multiple SRS resource groups. The SRS resource sets in a group have a spatial relationship. The rule may further specify that an SRS resource in the first group has the same spatial relationship or transmission state as another SRS resource in the second group.

[0073] 8. The SRS resource set is configured with the same power control parameter. The rule may further specify that all SRS resource sets in the same panel have the same power control parameter.

[0074] Embodiment 2

[0075] From the perspective of the UE, different UE antenna ports and their relationships with SRS resources need to be specified for antenna switching. To enable fast panel switching and / or antenna switching, the SRS ports / port groups of the SRS resources may be associated with different UE antenna ports / port groups, even if the resources share the same spatial relationship or transmission state. For example, referring back to Figure 4A, two SRS resources can be configured to share the same spatial relationship or transmission state (e.g., the same beam indication). However, the SRS ports / port groups of the two SRS resources are associated with different UE antenna ports / port groups (port A 404 and port B 405) to minimize any latency during antenna switching (e.g., from port A 404 to port B 405).

[0076] In some embodiments, the rule can specify the mapping relationship between one or more UE antenna ports and one or more SRS resources, for example:

[0077] 1. One or more resource sets are used for the SRS process; one or more SRS ports / one or more port groups of each resource in one or more resource sets are associated with different UE antenna ports.

[0078] 2. The resources are configured with the same spatial relationship and / or the same panel. These resources can be in the same resource set or different resource sets. One or more SRS ports / one or more port groups of the resources are associated with different UE antenna ports / port groups.

[0079] In some embodiments, the UE can report its capabilities regarding the number of different UE antenna ports / port groups or the number of SRS resources having the same spatial relationship and / or the same panel. For example, the number of UE antenna ports / port groups having the same spatial relationship / or the same panel supported by the UE can be a predefined value (e.g., 2 or 4). As another example, the number of SRS resources having the same spatial relationship and / or the same panel can also be a predefined value (e.g., 2 or 4). In some embodiments, the predefined value is determined based on an antenna indicator (e.g., xTyR). In some embodiments, the UE can report its capabilities regarding the number of SRS resources having different spatial relationships and / or different panels. Optionally and / or additionally, the number of SRS resources having different spatial relationships and / or different panels is a predefined value (e.g., 2 or 4).

[0080] Embodiment 3

[0081] After the base station sends configuration information to the UE, the base station can trigger the SRS process using a signaling message (e.g., a downlink control information (DCI) message or a media access control - control element (MAC-CE)). Figure 7 Shows an example of triggering the SRS process according to the present technology. As Figure 7As shown, there is a time-domain offset 701 between the UE receiving a signaling message (e.g., a DCI or MAC-CE message) and initiating an SRS procedure on the UE side. For in-panel antenna switching, the trigger offset 701 can be relatively small. However, in inter-panel antenna switching, the target panel may be in an inactive state, so a larger offset is required to allow the UE to activate the panel. In other words, inter-panel and in-panel antenna switching can be distinguished based on different trigger offsets.

[0082] In some embodiments, the trigger offset can be determined based on the UE's capabilities. For example, the UE can indicate that the minimum trigger offset for in-panel antenna switching is a first value (e.g., 14 symbols when the resources correspond to the same panel with the same transmission state / space relationship). The UE can also indicate that the minimum trigger offset for inter-panel antenna switching is a second value (e.g., 224 or 336 symbols when the resources correspond to different panels with different transmission states / space relationships). Based on the UE's capabilities, the base station can configure the SRS resources and resource sets to be associated with different transmission states, space relationships, or panels for inter-panel antenna switching, or with the same transmission state, space relationship, or panel for in-panel antenna switching.

[0083] Due to the cost of activating the panel, the trigger offset for inter-panel antenna switching can be large. Therefore, some SRS resource sets can be used for multiple purposes to reduce or minimize further delays in subsequent transmissions. In some embodiments, one or more resource sets corresponding to the last or first SRS transmission are associated with a codebook transmission purpose or a non-codebook transmission purpose. That is, the SRS resources or resource sets with the lowest or highest resource index or set index N are associated with a codebook transmission purpose or a non-codebook transmission purpose, where N is a positive integer. The resources and / or resource sets associated with a codebook transmission purpose or a non-codebook transmission purpose can be applied to subsequent uplink transmissions (e.g., PUSCH transmissions) to reduce or minimize further delays caused by inter-panel antenna switching. In some embodiments, the SRS resources or resource sets associated with multiple purposes are configured with the same panel, transmission state, or space relationship.

[0084] For example, as Figure 7As shown, the DCI message triggers the SRS procedure using two SRS resource sets. The DCI message (or, Media Access Control (MAC) control element) can also dynamically provide the transmission status of the resources in the two resource sets associated with different UE panels. Resource set A 703 and resource set B 705 are configured for antenna switching purposes. Resource set B 705 corresponds to the last SRS transmission, so it is also associated with a codebook transmission purpose or a non-codebook transmission purpose applicable to subsequent PUSCH transmissions. When all SRS transmissions are completed, the panel corresponding to the last SRS transmission remains active. The panel can continue to perform PUSCH transmissions using the latest or active SRS transmission resources without incurring additional overhead.

[0085] In some embodiments, the UE can automatically update the mapping between one or more SRS resource sets and one or more UE panels for antenna switching transmissions.

[0086] Embodiment 4

[0087] Return reference Figure 7 , for inter-panel antenna switching where the SRS resource or resource set is associated with different panels, different transmission states, and / or different spatial relationships (e.g., using physical radio frequency chain switching), there may be a time-domain guard period 707 during which no signal is transmitted between adjacent SRS transmissions to prevent transmission overlap and / or interference. The length of the guard period (e.g., Y symbols, where Y is a positive integer) can be determined based on UE capabilities or based on the subcarrier spacing of the transmission. For example, for antenna switching, a guard period can be inserted between adjacent resources in the resource set. As another example, for beam management, a guard period can be inserted between adjacent resource sets or adjacent resource groups, where the resource sets in each group are associated with the same one or more panels.

[0088] For intra-panel antenna switching, a time-domain guard period may not be required. For example, at the same one or more UE antenna ports and one or more panels, beam switching may not have a time-domain guard period. When the SRS resource or resource set is associated with the same panel (e.g., in the same SRS resource group) but has different spatial relationships, there is no need to insert a guard period between adjacent guard periods. When the SRS resource or resource set is associated with the same panel and has the same spatial relationship or transmission state, a guard period can be inserted between adjacent SRS transmissions to prevent transmission interference. Similar to inter-panel antenna switching, the length of the guard period can be determined based on UE capabilities or based on the subcarrier spacing of the transmission.

[0089] Embodiment 5

[0090] This embodiment describes in-panel antenna switching without beam management (e.g., without beam scanning). Return reference Figure 4A , for the antenna switching process, the SRS resource or resource set can be configured with the same spatial relationship but different antenna ports. As Figure 4A shown, SRS resource 411 and SRS resource 412 have the same spatial relationship, but correspond to sub-array A (antenna port A, 404) and sub-array B (antenna port B, 405), respectively.

[0091] Embodiment 6

[0092] This embodiment describes an example of inter-panel antenna switching with uplink beam management. Figure 8 An example of single-beam inter-panel antenna switching according to the present technology is shown. In the single-beam antenna switching process with uplink beam management (e.g., UL beam scanning), the following two options can be considered:

[0093] Option 1: The SRS resource set includes resources corresponding to different UE panels. In particular, at least one of the following criteria can be supported:

[0094] Criterion 1-1: Resources in the same resource set have the same spatial relationship. For example, resources 801 and 803 are located in the same resource set 811. They share the same spatial relationship (e.g., beam indication). Resource sets sharing the same spatial relationship can also be organized as a group.

[0095] Criterion 1-2: In a resource set or a group of SRS resource sets, the SRS port / port group of a resource is associated with a different UE antenna port. For example, resource 801 is associated with antenna port 1 of panel 1, while resource 803 is associated with antenna port 2 of panel 2.

[0096] Under Option 1, since the resources correspond to different panels, at least one guard period is required between the resources in a group or a set of resources. To reduce the number of required guard periods, resource-based time slot offset (e.g., for each resource in the set or one or more selected resources) can be adopted.

[0097] Option 2: The SRS resource set includes resources corresponding to the same UE panel. In particular, at least one of the following criteria can be supported:

[0098] Standard 2-1: The SRS resources in a resource concentration have different spatial relationships. For example, resource 801 and resource 802 are located in the same resource set 812. The two resources correspond to the same panel (e.g., panel 1). In some embodiments, the resource sets can be sorted. The SRS resources in the first set have the same spatial relationship or transmission state with the corresponding SRS resources in the second set in sequence. For example, resource set 812 is sorted before resource set 813. Resource 801 in resource set 812 has the same spatial relationship (e.g., beam indication) with the corresponding resource 803 in resource set 813.

[0099] This standard can be extended to multiple groups. When the SRS resource sets are organized into groups, the SRS resources in a set of resource sets have different spatial relationships. In some embodiments, the groups can be sorted. The SRS resources in the first group have the same spatial relationship or transmission state with the corresponding SRS resources in the second group in sequence.

[0100] Standard 2-2: The SRS ports / port groups of resources with the same spatial relationship in different sets are associated with different UE antenna ports / port groups. For example, resource 801 is associated with antenna port 1, while resource 803 is associated with antenna port 2.

[0101] Under option 2, there is no need to insert a guard period between the resources in the same resource set to mitigate interference.

[0102] Embodiment 7

[0103] As described above, considering the downlink and uplink channel reciprocity, antenna switching based on the SRS process can also be used for DL-CSI acquisition. This embodiment describes another example of inter-panel antenna switching with uplink beam management. In a multi-beam antenna switching process with uplink beam management (e.g., UL beam scanning), during antenna switching, different transmission states / spatial relationships (e.g., beam candidates) are used for one-time DL-CSI acquisition. Therefore, the following two candidates can be considered:

[0104] Option 1: Figure 9 Shows an example of multi-beam inter-panel antenna switching according to the present technology. In Figure 9 , the UE has two panels, four Rx chains, and two Tx chains (e.g., 2T4R). At least one of the following standards can be supported:

[0105] Criterion 1-1: The SRS resource set includes resources corresponding to different UE panels and / or having different spatial relationships. For example, resource set 911 includes resources 901 and 903 corresponding to panel 1 and panel 2 respectively. Resources 901 and 903 have different spatial relationships (e.g., beam indication). Similarly, resource set 912 includes resources 902 and 904 corresponding to panel 1 and panel 2 respectively. Resources 902 and 904 have different spatial relationships.

[0106] Criterion 1-2: The SRS ports / port groups of resources having the same spatial relationship, the same transmission state, or the same panel are associated with different UE antenna ports. For example, resources 901 and 902 have the same spatial relationship (e.g., the same beam indication). These two resources are associated with different antenna ports 1a and 1b. Similarly, resources 903 and 904 have the same spatial relationship, and they are associated with different antenna ports 2a and 2b.

[0107] Under option 1, the UE can report the maximum number of different spatial relationships or panels in the resource sets that it can support. Alternatively, the maximum number of different spatial relationships or panels in the resource sets can be set to a predefined value. The UE can also report the number of different UE antenna ports / port groups having the same spatial relationship or panel that it can support. Alternatively, the number of different UE antenna ports / port groups having the same spatial relationship or panel is set to a predefined value.

[0108] Option 2: Figure 10 Another example of multi-beam inter-panel antenna switching according to the present technology is shown. In Figure 10 , the UE also has two panels, four Rx chains, and two Tx chains (e.g., 2T4R). At least one of the following criteria can be supported:

[0109] Criterion 2-1: Resources in the same resource group or resource set correspond to the same UE panel. For example, in Figure 10 , the resources are organized in four resource sets 1011, 1012, 1013, and 1014. These four resource sets are then organized into two resource groups 1021 and 1022. In the same resource group 1021, resources 1001 - 1004 correspond to panel 1, but at least some of them have different transmission states / spatial relationships. Similarly, in the same resource group 1022, resources 1005 - 1008 correspond to panel 2, but at least some of them have different transmission states / spatial relationships. In some embodiments, the first resource (e.g., 1001) in the first resource set (e.g., 1011) or the first resource group (1021) has the same transmission state / spatial relationship as the second resource (e.g., 1005) in the second resource set (e.g., 1013) or the second resource group (1022).

[0110] Note that when beam scanning within the panel is not considered (similar to Example 5 without beam management), the resources within a resource set or resource group can be considered to have the same spatial relationship.

[0111] Standard 2-2: The SRS ports / port pairs of resources with the same spatial relationship in the same SRS group or set are associated with different UE antenna ports / port groups. For example, in resource group 1021, resources 1001 and 1003 have the same spatial relationship (e.g., the same beam indication), but are associated with different UE antenna parts (ports 1a and 1b respectively). Similarly, in resource group 1022, resources 1005 and 1007 have the same spatial relationship (e.g., the same beam indication), but are associated with different UE antenna parts (ports 2a and 2b respectively).

[0112] Figure 11 An example of a wireless communication system 1100 is shown, in which the techniques according to one or more embodiments of the present technology can be applied. The wireless communication system 1100 can include one or more base stations (BSs) 1105a, 1105b, one or more wireless devices 1110a, 1110b, 1110c, 1110d, and a core network 1125. The base stations 1105a, 1105b can provide wireless services to the wireless devices 1110a, 1110b, 1110c, and 1110d in one or more wireless sectors. In some implementations, the base stations 1105a, 1105b include directional antennas to generate two or more directional beams to provide wireless coverage in different sectors.

[0113] The core network 1125 can communicate with one or more base stations 1105a, 1105b. The core network 1125 provides connections to other wireless communication systems and wired communication systems. The core network can include one or more service subscription databases to store information related to the subscribed wireless devices 1110a, 1110b, 1110c, and 1110d. The first base station 1105a can provide wireless services based on a first radio access technology, while the second base station 1105b can provide wireless services based on a second radio access technology. Depending on the deployment scenario, the base stations 1105a and 1105b can be located at the same location or can be installed separately on site. The wireless devices 1110a, 1110b, 1110c, and 1110d can support multiple different radio access technologies. The techniques and embodiments described in this application can be implemented by the base stations of the wireless devices described in this application.

[0114] Figure 12A block diagram representation of a portion of a wireless station in accordance with one or more embodiments of the present technology. A wireless station 1205, such as a base station or a wireless device (or UE), may include processor electronics 1210, such as a microprocessor, that implements one or more wireless technologies presented in this application. The wireless station 1205 may include transceiver electronics 1215 to transmit and / or receive wireless signals via one or more communication interfaces, such as antennas 1220. The wireless station 1205 may include other communication interfaces for transmitting and receiving data. The wireless station 1205 may include one or more memories (not explicitly shown) configured to store information such as data and / or instructions. In some implementations, the processor electronics 1210 may include at least a portion of the transceiver electronics 1215. In some embodiments, at least some of the disclosed technologies, modules, or functions are implemented using the wireless station 1205. In some embodiments, the wireless station 1205 may be configured to perform the methods described herein.

[0115] It should be understood that this application discloses technologies that can be implemented in various embodiments to allow for fast panel switching and antenna switching of wireless devices having multiple panels. The disclosed embodiments, as well as other embodiments, modules, and functional operations described in this application, can be implemented in digital electronic circuits, or in computer software, firmware, or hardware, including the structures disclosed in this application and their structural equivalents, or in combinations of one or more of them. The disclosed embodiments and other embodiments can be implemented as one or more computer program products, i.e., one or more modules of computer program instructions encoded on a computer-readable medium for execution by, or to control the operation of, a data processing apparatus. The computer-readable medium can be a machine-readable storage device, a machine-readable storage substrate, a storage device, a composition that affects a machine-readable propagated signal, or a combination of one or more of them. The term "data processing apparatus" encompasses all apparatuses, devices, and machines for processing data, such as, for example, including programmable processors, computers, or multiple processors or computers. In addition to hardware, the apparatus may also include code that creates an execution environment for the computer program being considered, such as, for example, code that constitutes processor firmware, a protocol stack, a database management system, an operating system, or a combination of one or more of them. A propagated signal is an artificially generated signal, for example, a machine-generated electrical, optical, or electromagnetic signal that is generated to encode information for transmission to a suitable receiver device.

[0116] A computer program (also known as a program, software, software application, script, or code) can be written in any form of programming language, including compiled or interpreted languages, and it can be deployed in any form, including as a stand-alone program or as modules, components, subroutines, or other units suitable for a computing environment. A computer program does not necessarily correspond to a file in a file system. The program can be stored as part of a file that holds other programs or data (e.g., one or more scripts stored in a markup language document), in a single file dedicated to the program being considered, or in multiple cooperating files (e.g., files that hold one or more modules, subroutines, or portions of code). A computer program can be deployed to be executed on one computer or on multiple computers, which may be located at one site or distributed across multiple sites and interconnected by a communication network.

[0117] The processes and logical flows described in this application can be performed by one or more programmable processors that execute one or more computer programs to perform functions by operating on input data and generating output. The processes and logical flows can also be performed by, and apparatus can also be implemented as, special purpose logic circuitry, e.g., an FPGA (Field Programmable Gate Array) or an ASIC (Application Specific Integrated Circuit).

[0118] By way of example, processors suitable for the execution of a computer program include both general and special purpose microprocessors, and any one or more processors of any kind of digital computer. Generally, a processor will receive instructions and data from a read only memory or a random access memory or both. The essential elements of a computer are a processor for executing instructions and one or more memory devices for storing instructions and data. Generally, a computer will also include, or be operatively coupled to, one or more mass storage devices for storing data (e.g., magnetic disks, magneto-optical disks, or optical disks) from which it receives data or to which it writes data, or both. However, a computer need not have such devices. Computer-readable media suitable for storing computer program instructions and data include various forms of non-volatile memory, media, and memory devices, including, by way of example, semiconductor memory devices, such as EPROM, EEPROM, and flash memory devices; magnetic disks, such as internal hard disks or removable disks; magneto-optical disks; and CD ROM and DVD-ROM disks. The processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.

[0119] Although this patent application contains many details, these should not be construed as limiting the scope of any invention or the scope of what may be claimed, but rather as descriptions of features of particular embodiments that may be specific to a particular invention. Certain features described in the context of separate embodiments of this patent application may also be implemented in combination in a single embodiment. Conversely, the various features described in the context of a single embodiment may also be implemented separately in multiple embodiments or in any suitable sub-combination. Moreover, although the above features may be described as acting in certain combinations and even initially claimed as such, in some cases, one or more features from said combination may be deleted from the combination, and the combination may cover a sub-combination or a variation of a sub-combination.

[0120] Similarly, although operations are described in a particular order in the figures, this should not be understood as requiring that the operations be performed in the particular order or sequence shown, or that all of the operations shown be performed, to achieve the desired result. Additionally, the separation of various system components in the embodiments described in this patent application should not be understood as required in all embodiments.

[0121] Only some embodiments and examples have been described, and other embodiments, enhancements, and variations may be made based on what is described and illustrated in this patent application.

Claims

1. A wireless communication method, comprising: receiving, by a mobile device, configuration parameters from a base station; and sending, by the mobile device, a sounding reference signal (SRS) to the base station according to an SRS procedure, wherein one or more resource sets are determined according to the configuration parameters, wherein at least one of the one or more resource sets is for a first use and a second use, the first use includes an antenna switching use or a beam management use, and the second use includes a codebook transmission use or a non-codebook transmission use, and wherein a subset of the one or more resource sets is located at an end of the SRS transmission and is associated with the codebook transmission use or the non-codebook transmission use, the subset being applicable to subsequent uplink data transmission.

2. The method according to claim 1, wherein, The one or more resource sets are organized in one or more groups.

3. The method according to claim 1, wherein, Resources of the one or more resource sets or resources in the one or more resource sets are associated with the same configuration parameters.

4. The method according to claim 1, wherein The configuration parameters include an indicator indicating the association of the one or more resource sets.

5. The method according to claim 1, wherein, The configuration parameters include at least one of the following: time domain characteristics, the number of antenna ports corresponding to resources in each of the one or more resource sets, the number of resources in each of the one or more resource sets, a trigger state, a resource type, a bandwidth part, a component carrier, a transmission state, a spatial relationship, a panel, the number of transmit antennas and receive antennas, or a power control parameter.

6. The method according to claim 1, wherein, Resources from different resource sets among the one or more resource sets correspond to different antenna ports or port groups of the mobile device.

7. The method according to claim 1, wherein resources from the same resource set or the same resource group among the one or more resource sets correspond to different antenna ports or port groups of the mobile device.

8. The method according to claim 6 or 7, wherein The resources correspond to the same transmission state or the same panel.

9. The method according to claim 1, further comprising: receiving, by the mobile device, a message from the base station for triggering the SRS procedure, wherein a time domain offset between receiving the message and sending the sounding reference signal is less than or equal to a first threshold.

10. The method according to claim 9, wherein, Resources in at least one of the one or more resource sets correspond to the same panel or the same transmission state.

11. The method according to claim 1, further comprising: receiving, by the mobile device, a message from the base station for triggering the SRS procedure, wherein a time domain offset between receiving the message and sending the sounding reference signal is greater than or equal to a second threshold.

12. The method according to claim 11, wherein, Resources in at least one of the one or more resource sets correspond to different panels or different transmission states.

13. The method according to claim 9 or 11, wherein, The first threshold or the second threshold is configured by the base station or determined according to the capabilities of the mobile device.

14. The method according to claim 1, wherein, All resources of at least one resource set are associated with the same panel or the same transmission state.

15. The method according to claim 1, wherein, A guard period is applied between a first resource and a second resource, and wherein the first resource and the second resource correspond to different panels, the same transmission state, and / or different resource sets, and wherein the mobile device does not send a signal during the guard period.

16. The method according to claim 1, wherein Resources in a resource concentration are located without any protection period between each other, and wherein the resources correspond to the same resource set, the same panel, and / or different transmission states.

17. The method according to claim 1, wherein, A protection period is excluded between a first resource and a second resource, and wherein the first resource and the second resource correspond to the same resource set, the same panel, and / or different transmission states.

18. The method according to claim 1, wherein, A protection period is excluded between a first resource and a second resource, and wherein the first resource and the second resource correspond to different resource sets.

19. The method according to claim 1, wherein, Resources in at least one of the one or more resource concentrations correspond to the same transmission state or the same panel.

20. The method according to claim 1, wherein Resources in at least one of the one or more resource concentrations correspond to different transmission states or different panels.

21. The method according to claim 19 or 20, wherein The resources correspond to different ports or port groups of the mobile device.

22. The method according to claim 1, wherein Resources in at least one of the one or more resource concentrations are associated with different panels.

23. The method according to claim 1, wherein, Resources in at least one of the one or more resource concentrations are associated with the same panel.

24. The method according to claim 1, wherein A first resource in a first resource concentration has the same transmission state or the same panel as a corresponding second resource in a second resource concentration.

25. The method according to claim 1, wherein, A first resource concentration in a first group has the same transmission state or the same panel as a corresponding second resource concentration in a second resource group.

26. The method according to claim 1, wherein, The capabilities of the mobile device indicate that resources in at least one of the one or more resource concentrations support different transmission states.

27. The method according to claim 1, wherein The number of different ports or port groups in the same transmission state is a predefined value or determined based on the capabilities of the mobile device.

28. The method according to claim 1, wherein The number of resources associated with the same transmission state or the same panel is a predefined value or determined according to the capabilities of the mobile device.

29. The method according to claim 1, wherein, The number of resources associated with different transmission states or different panels is a predefined value or determined according to the capabilities of the mobile device.

30. The method according to claim 1, wherein, The number of resources is determined based on an antenna indicator indicating the number of transmit antennas and receive antennas.

31. A wireless communication method, comprising: sending, by a base station, configuration parameters to a wireless device; and receiving, by the base station, a sounding reference signal SRS from the wireless device according to a sounding reference signal SRS procedure, wherein one or more resource sets are determined according to the configuration parameters, wherein at least one of the one or more resource sets is used for a first use and a second use, the first use includes an antenna switching use or a beam management use, and the second use includes a codebook transmission use or a non-codebook transmission use, and wherein a subset of the one or more resource sets is located at the end of the SRS transmission and is associated with the codebook transmission use or the non-codebook transmission use, the subset is applicable to subsequent uplink data transmission.

32. The method according to claim 31, wherein, The one or more resource sets are organized in one or more groups.

33. The method according to claim 31, wherein, The one or more resource sets or resources in the one or more resource concentrations are associated with the same configuration parameters.

34. The method according to claim 31, wherein The configuration parameters include an indicator indicating the association of the one or more resource sets.

35. The method according to claim 31, wherein, The configuration parameters include at least one of the following: time domain characteristics, the number of antenna ports corresponding to resources in each of the one or more resource sets, the number of resources in each of the one or more resource sets, trigger status, resource type, bandwidth part, component carrier, transmission status, spatial relationship, panel, the number of transmit antennas and receive antennas, or power control parameters.

36. The method according to claim 31, wherein, Resources from different resource sets among the one or more resource sets correspond to different antenna ports or port groups of the mobile device.

37. The method according to claim 31, wherein resources from the same resource set or the same resource group among the one or more resource sets correspond to different antenna ports or port groups of the mobile device.

38. The method according to claim 36 or 37, wherein, The resources correspond to the same transmission status or the same panel.

39. The method according to claim 31, further comprising: The base station sends a message to the mobile device for triggering the SRS process, wherein the time domain offset between the mobile device receiving the message and sending the sounding reference signal is less than or equal to a first threshold.

40. The method according to claim 39, wherein, Resources in at least one of the one or more resource sets correspond to the same panel or the same transmission status.

41. The method according to claim 31, further comprising: The base station sends a message to the mobile device for triggering the SRS process, wherein the time domain offset between the mobile device receiving the message and transmitting the sounding reference signal is greater than or equal to a second threshold.

42. The method according to claim 41, wherein, Resources in at least one of the one or more resource sets correspond to different panels or different transmission statuses.

43. The method according to claim 39 or 41, wherein The first threshold or the second threshold is configured by the base station or determined according to the capabilities of the mobile device.

44. The method according to claim 31, wherein, All resources of at least one resource set are associated with the same panel or the same transmission status.

45. The method according to claim 31, wherein, A guard period is applied between a first resource and a second resource, and wherein the first resource and the second resource correspond to different panels, the same transmission status, and / or different resource sets, and wherein the mobile device does not send a signal during the guard period.

46. The method according to claim 31, wherein, Resources in a resource set are positioned without any guard period between each other, and wherein the resources correspond to the same resource set, the same panel, and / or different transmission statuses.

47. The method according to claim 31, wherein, A guard period is excluded between a first resource and a second resource, and wherein the first resource and the second resource correspond to the same resource set, the same panel, and / or different transmission statuses.

48. The method according to claim 31, wherein, A guard period is excluded between a first resource and a second resource, and wherein the first resource and the second resource correspond to different resource sets.

49. The method according to claim 31, wherein, Resources in at least one of the one or more resource sets correspond to the same transmission status or the same panel.

50. The method according to claim 31, wherein resources in at least one of the one or more resource sets correspond to different transmission statuses or different panels.

51. The method according to claim 49 or 50, wherein, The resources correspond to different ports or port groups of the mobile device.

52. The method according to claim 31, wherein, Resources in at least one of the one or more resource sets are associated with different panels.

53. The method according to claim 31, wherein, Resources in at least one of the one or more resource sets are associated with the same panel.

54. The method according to claim 31, wherein, The first resource in the first resource set has the same transmission state or the same panel as the corresponding second resource in the second resource set.

55. The method according to claim 31, wherein, The first resource set in the first group has the same transmission state or the same panel as the corresponding second resource set in the second resource group.

56. The method according to claim 31, wherein, The capabilities of the mobile device indicate that resources in at least one of the one or more resource sets support different transmission states.

57. The method according to claim 31, wherein, The number of different ports or port groups with the same transmission state is a predefined value or determined based on the capabilities of the mobile device.

58. The method according to claim 31, wherein, The number of resources associated with the same transmission state or the same panel is a predefined value or determined according to the capabilities of the mobile device.

59. The method according to claim 31, wherein, The number of resources associated with different transmission states or different panels is a predefined value or determined according to the capabilities of the mobile device.

60. The method according to claim 31, wherein, The number of resources is determined based on an antenna indicator indicating the number of transmit antennas and receive antennas.

61. A wireless communication device, comprising: One or more transceivers; And A processor, the processor communicating with the one or more transceivers and configured to implement the method according to any one or more of claims 1 to 30.

62. A wireless communication device, comprising: A transceiver; And A processor, the processor communicating with the one or more transceivers and configured to implement the method according to any one or more of claims 31 to 60.

63. A computer program product stored on a non-transitory computer-readable medium, the computer program product comprising program code for performing the method according to any one of claims 1 to 60.

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