Method for handling aperiodic reporting of channel state information, related wireless device and related radio network node

Abstract

A method performed in a wireless device (WD) for aperiodic reporting of channel state information is disclosed. The method comprises receiving configuration signaling from a first access point of the radio access network, the configuration signaling indicating whether an acknowledgement (ACK) is to be sent in response to a beam indication. The method comprises receiving a beam indication from a first access point of the radio network node, the beam indication comprising information indicating one or more beams to be reported by the WD. The method comprises: in response to a beam indication, sending a channel state report of a beam indicated in the beam indication to a second access point.

Description

[0001] This disclosure relates to the field of wireless communications. Specifically, it relates to methods for processing non-periodic reports of channel state information, related wireless devices, and related network nodes. Background Technology

[0002] Beam management can be viewed as a set of procedures related to the formation, control, and detection of beams used for communication between wireless devices and transmission points, such as radio network nodes. By performing measurements (such as channel state measurements) on multiple beams, a beam can be selected that enhances the signal strength for the desired wireless device while reducing interference to other wireless devices.

[0003] However, beam management procedures are typically associated with significant signaling overhead, which is related to, for example, indicating available beams, triggering beam measurements, and reporting measurements (such as channel state information) to the network. This signaling overhead can, in turn, lead to latency in wireless communication systems. Summary of the Invention

[0004] Therefore, there is a need for devices and methods for processing non-periodic reports of channel state information, which can mitigate, alleviate or resolve existing drawbacks and provide reduced signaling overhead and latency in wireless communication systems.

[0005] A method for processing non-periodic reporting of channel state information, executed in a wireless device (WD), is disclosed. The method includes: receiving configuration signaling from a first access point of a radio access network, the configuration signaling indicating whether to send an acknowledgment (ACK) in response to a beam indication. The method includes: receiving control signaling (such as a beam indication) from the first access point of the radio network node, the beam indication including information indicating one or more beams to be reported by the WD. The method includes: in response to the control signaling (such as the beam indication), sending a channel state report of the beams indicated in the beam indication to a second access point.

[0006] In addition, a wireless device is provided, which includes memory circuitry, processor circuitry, and a wireless interface, wherein the wireless device is configured to perform any of the methods disclosed herein and relating to wireless devices.

[0007] The advantage of this disclosure is that the wireless device can be dynamically configured to transmit or avoid transmitting ACK in response to control signaling received from a radio network node. Upon receiving an indication that ACK is not required, the WD can avoid explicitly sending an ACK to the wireless network, such as sending a dedicated ACK. Instead, the receipt of control information (such as beam indication) can be implicitly acknowledged by performing the action requested in the control signaling (such as by sending a channel state report to the radio network node). This reduces the overhead associated with beam management and thus reduces latency.

[0008] A method for processing non-periodic reporting of channel state information from a WD (Wireless Controller) in a radio network node is disclosed. The method includes: sending a configuration message to the WD indicating whether to send an ACK for a beam indication; sending a beam indication to the WD indicating one or more beams to be reported by the WD; and avoiding retransmission of the beam indication for a duration when the configuration message indicates that no ACK should be sent.

[0009] In addition, a radio network node is provided, which includes memory circuitry, processor circuitry, and a wireless interface, wherein the radio network node is configured to perform any of the methods disclosed herein and associated with the radio network node.

[0010] An advantage of this disclosure is that radio network nodes can dynamically configure radio devices to transmit or avoid transmitting ACKs in response to control signaling received from the radio network node. When a radio device is configured to avoid transmitting ACKs, such as when a configuration message indicates that ACKs are not required, the radio network node can avoid retransmitting control signaling, such as beam indications, without an explicit ACK from the WD. Conversely, the radio network node can use a channel state report received from the WD as an implicit acknowledgment that the control signaling has been received by the WD. This reduces the overhead associated with beam management and thus reduces latency. Attached Figure Description

[0011] The above and other features and advantages of this disclosure will become readily apparent to those skilled in the art from the following detailed description of examples of the disclosure with reference to the accompanying drawings, in which: Figure 1 This is a diagram illustrating an example wireless communication system including an example network node and an example wireless device according to this disclosure. Figures 2A to 2B The conventional beam management procedure and the example beam management procedure according to this disclosure are shown. Figure 3 This is a flowchart illustrating an example method for processing non-periodic reporting of channel state information performed in a wireless device according to the present disclosure. Figure 4 This is a flowchart illustrating an example method for processing non-periodic reports of channel state information performed in a radio network node of a wireless communication system according to the present disclosure. Figure 5 This is a block diagram illustrating an example wireless device according to this disclosure, and Figure 6 This is a block diagram illustrating an example network node according to this disclosure. Detailed Implementation

[0012] Various examples and details are described below with reference to the accompanying drawings (where applicable). It should be noted that the drawings may be drawn to scale or not, and throughout the drawings, elements with similar structures or functions are indicated by similar reference numerals. It should also be noted that the drawings are intended only to facilitate the description of examples. They are not intended as an exhaustive description of this disclosure or as a limitation on the scope of this disclosure. Furthermore, the examples shown do not need to possess all the aspects or advantages shown. Aspects or advantages described in connection with a particular example are not necessarily limited to that example, and may be practiced in any other example even if not so illustrated or so explicitly described.

[0013] The accompanying drawings are schematic and simplified for clarity, and they show only details that aid in understanding this disclosure, while other details have been omitted. Throughout, the same reference numerals are used for the same or corresponding parts.

[0014] Figure 1 This is a diagram illustrating an example wireless communication system 1 according to the present disclosure, which includes an example network node 400 and an example wireless device 300.

[0015] As discussed in detail herein, this disclosure relates to a wireless communication system 1 including a cellular system, such as a 3GPP wireless communication system. The wireless communication system 1 includes a wireless device 300 and / or a network node 400.

[0016] The radio network node disclosed herein refers to a radio access network node operating in a radio access network, such as a base station, an evolved Node B, an eNB, or a gNB in ​​an NR. In one or more examples, a radio network node is a functional unit that can be distributed across several physical units. A radio network node may include and / or control multiple access points, such as antenna elements, configured to provide appropriate beams for communication.

[0017] The core network (CN) nodes disclosed in this document refer to network nodes operating in a core network, such as in the evolved packet core network (EPC) and / or the 5G core network (5GC). Examples of CN nodes in an EPC include the mobility management entity (MME).

[0018] The wireless communication system 1 described herein may include one or more wireless devices 300, 300A and / or one or more network nodes 400, such as one or more of the following: base station, eNB, gNB and / or access point.

[0019] Wireless devices can refer to mobile devices and / or user equipment (UE).

[0020] Wireless devices 300 and 300A can be configured to communicate with network node 400 via wireless link (or radio access link) 10 and 10A.

[0021] For beam management procedures, such as channel assessment during beam management, radio network node 400 may use one or more beams to transmit reference signals, such as Channel State Information Reference Signals (CSI-RS), to WD 300, 300A via radio links 10, 10A. One or more beams may be transmitted from one or more access points, such as one beam per access point. Access points may be controlled by common logic, such as by radio network node 400. Access points may be considered herein as antenna elements of the radio network node. WD 300, 300A may measure CSI-RS and send channel state reports, such as beam reports, to radio network node 400.

[0022] Figures 2A to 2B A comparison is shown between conventional signaling for processing non-periodic reports of channel state information and the solution according to this disclosure.

[0023] In traditional signaling, the WD sends an ACK to the NW in response to control signaling (such as beam indication). However, in most scenarios, the ACK is considered positive with a very high probability. Therefore, the ACK is practically useless and adds overhead associated with control signaling.

[0024] According to this disclosure, a network (such as a network node and / or access point) may indicate to the WD that the network does not require any ACK for control signaling (such as beam indication). The network may indicate that ACK is not required during beam indication transmission, such as by including it in the beam indication or as a separate message transmitted in association with the beam indication. Transmissions associated with the beam indication can be considered herein as transmissions directly before or after the beam indication, such as in subsequent resources. This can be done in high signal-to-noise ratio (SNR) scenarios, where acknowledgment overhead may dominate the expected number of retransmissions due to beam indication detection failure at the WD. In one or more example methods, the network may notify the WD at the beam indication when a reference signal will be transmitted.

[0025] In one or more example methods, the WD can be pre-configured to not transmit an ACK in response to control signaling. Therefore, not transmitting an ACK can be the default scenario for the WD. In this case, the NW can request the WD to transmit an ACK while transmitting control signaling (such as beam indication). For example, this can be done in a low SNR scenario, where beam indication detection failure is more likely to occur.

[0026] In response to a beam indication, the WD can send a channel response report to the network. This channel response report can act as an implicit ACK. If a channel response report is not transmitted, the WD has not acknowledged the beam indication.

[0027] At the channel response report (such as a beam indication), the WD can insert an ACK. This can be done where the WD is requested to transmit the channel response report even without a beam indication. Therefore, the NW will not know whether the WD is responding to a new event (such as a beam indication) or a reference signal (such as CSI-RS) that would otherwise exist. In one or more example methods, the beam indication can suggest a beam change at the WD, in which case the WD can respond to a beam pair completely different from the beam pair used when the beam indication was received. In one or more example methods, the channel state report can indicate whether it is, for example, a periodically scheduled channel state report or a channel state report triggered by a beam indication event.

[0028] Although described herein in relation to beam indication from the network, the solutions disclosed herein are also applicable to other situations where an implicit ACK (such as a report) is sent immediately after an ACK, and where command detection failure does not have a catastrophic impact on communication between the WD and the network. Catastrophic consequences of command detection failure can be considered herein as: link failure due to command detection failure, the need to re-establish the connection between the WD and the access point, or the need for significant overhead to handle the situation, data loss, and / or modulation mismatch between the transmitter and receiver, such as modulation mismatch between the WD and the access point.

[0029] Figures 2A to 2B An example beam management procedure is shown, in which, Figure 2A The traditional beam management procedure is shown, and Figure 2B An example beam management procedure according to this disclosure is shown.

[0030] exist Figure 2A In the procedure shown, the network (such as a radio network node) sends a beam indication to the WD, which specifies one or more beams to be used by the WD for measuring channel states. Upon receiving the beam indication, the WD sends an acknowledgment (ACK) to the radio network node to notify it that it has received the beam indication. The WD then proceeds to receive the indicated one or more beams. However, the application of one or more beams is typically delayed by one beam application time from the start of the ACK transmission. Figures 2A to 2B This is referred to as beam application time (BET). BeamAppTimeAfter the network receives an ACK from the WD, it can trigger a Channel State Information (CSI) measurement from the WD. In most scenarios, such as when channel conditions are good, the ACK is affirmative with a very high probability (e.g., approximately 99%). After the CSI measurement is triggered, the network transmits a CSI Reference Signal (RS) on one or more beams indicated in the beam indication. There is a trigger offset between the transmission of the CSI-RS and the triggering of the CSI measurement. The WD measures the channel state based on the CSI-RS and sends a channel state report to the network. The channel state report may include channel state information for one or more measured beams. There is a delay between the transmission of the channel state report and the transmission of the CSI-RS, such as a report offset.

[0031] According to this disclosure, the network (such as a first access point of a radio access network, such as a radio network node) transmits a beam indication. At the beam indication, the network further indicates whether to transmit an ACK. Figure 2B In the example procedure shown, the network indicates to the WD that an ACK for the beam indication is not required. Simultaneously, the network can trigger a CSI measurement through the WD. The WD can avoid transmitting an ACK, and the network avoids waiting for an ACK for the beam indication from the WD before triggering the CSI measurement and transmitting the CSI-RS. This reduces signaling overhead associated with ACKs and retransmissions of the beam indication in the absence of an ACK. The CSI-RS can be transmitted with a trigger offset after the CSI measurement is triggered. The WD can begin receiving one or more beams indicated in the beam indication after a delay in the beam application time from the transmission of the beam indication. In one or more example methods, the CSI-RS can be continuously transmitted by the network (such as a radio network node) over a duration. The WD can apply the beam during the duration of the CSI-RS transmission such that the WD receives enough CSI-RS to prepare a channel state report to be sent to the network. When the beam application time is longer than the trigger offset ( Triggeroffset This might be the case when ), although. Figure 2B The beam is shown to be Figure 2B In this case, the CSI-RS is applied by the WD after it is transmitted, but in one or more example methods, the WD may apply the beam before or simultaneously with the CSI-RS being transmitted by the network. In this scenario, the network (such as a radio network node) may transmit a single CSI-RS, which can be received by the WD via the applied beam. This may be the case, for example, when the beam application time is shorter than or equal to the trigger offset. The WD then measures the channel state based on the CSI-RS transmitted on the received beam. After the WD measures the channel state, the WD reports the offset (…). ReportoffsetA channel state report is sent after the specified time period. Therefore, the trigger offset, beam application time, and / or offset reporting time periods can overlap, which is consistent with... Figure 2A These time periods are arranged sequentially in contrast to traditional procedures. According to the beam management procedures disclosed herein (such as...), Figure 2B The beam management procedure can reduce the time spent executing the beam management procedure, thereby reducing latency in wireless communication systems.

[0032] If the beam indication is applied for an extended period, the WD may fail to receive some transmitted CSI-RS, and some channel state reports may be missing as a result. If this occurs, the ACK that triggers the beam indication may also be lost. In one or more example methods, such as when the WD is configured not to transmit an ACK in response to the beam indication, when the beam indication triggers a channel state report, and when the WD fails to send a channel state report due to, for example, insufficient CSI-RS available for generating a channel state report, the WD will still transmit an ACK to the beam indication despite being instructed not to send an explicit ACK to the network.

[0033] Figure 3 A flowchart is shown of an example method 100 for processing aperiodic reporting of channel state information performed by a WD according to this disclosure. The WD is a wireless device disclosed herein, such as... Figure 1 and Figure 5 300 wireless devices.

[0034] Method 100 includes receiving S102 configuration signaling from a first access point of the radio access network, the configuration signaling indicating whether to send an ACK in response to a beam indication, such as including information indicating whether to send an ACK in response to a beam indication. In one or more example methods, the beam indication is associated with a channel state report (such as a beam report). In other words, the beam indication may indicate one or more beams for which the WD reports channel state measurements. In one or more example methods, the configuration signaling indicates the duration for which an ACK is not sent or is sent. In one or more example methods, the configuration signaling may be received at the same time as control signaling (such as beam indication). Upon receiving control signaling, information may be considered to be included in the control signaling, such as being received in the same message as the control signaling, or as a separate message associated with the control signaling. Content received in association with control signaling may be considered herein to be received directly before or after the beam indication, such as in subsequent resources.

[0035] Method 100 includes receiving S103 control information (such as a beam indication) from a first access point of a radio network node, the beam indication including information indicating one or more beams to be reported by the WD. In one or more example methods, configuration signaling is included in the beam indication. In one or more example methods, the beam indication acts as a trigger for channel state reporting. In one or more example methods, the beam indication includes information indicating the beams to be reported. The information indicating the beams to be reported may include downlink control information (DCI) configuration. The DCI configuration may be related to the settings of the radio network node (such as the access point). Based on the information indicating the beams to be reported, the WD can determine one or more beams to be measured.

[0036] In one or more example methods, receiving S103 control signaling includes: receiving S103A control signaling, which triggers the WD to perform channel state measurements, such as CSI-RS measurements, on the beam indicated in the beam indication (such as by DCI configuration indication).

[0037] In one or more example methods, the method includes: preventing S104A from transmitting an ACK, such as a dedicated ACK, to the first access point when a configuration message indicates that an ACK does not need to be sent.

[0038] In one or more example methods, the method includes sending an S104B ACK to a first access point before a transport channel state report (such as a beam report) is sent, when a configuration message indicates that an ACK needs to be sent.

[0039] In one or more example methods, the method includes: measuring the channel state on one or more beams indicated in the beam indication by S105. WD can perform channel state measurements on reference signals (such as CSI-RS) transmitted on the beams indicated in the channel state report.

[0040] Method 100 includes: in response to a beam indication, transmitting a channel state report of the beam indicated in the beam indication (S107) to a second access point. In one or more example methods, the channel state report includes information indicating the measured channel state. "In response to a beam indication" herein can be considered as being based on the beam indication, such as based on the information included in the beam indication, such as based on the DCL. In other words, transmitting the channel state report in response to a beam indication may include channel state information measured on the beam indicated in the beam indication.

[0041] In one or more example methods, for example when configuration signaling indicates that no ACK is sent to the network, the channel state report acts as an ACK for the beam indication, such as an implicit ACK for the beam indication. In one or more example methods, the channel state report includes information indicating an ACK for the beam indication. In one or more example methods, the first access point and the second access point are controlled by the same logic. In one or more example methods, the first access point and the second access point are the same access point or different access points.

[0042] In one or more example methods, beam indication includes information indicating one or more resources (such as one or more resources for transmitting CSI-RS) for transmitting a reference signal used to measure channel state. Thus, the WD can determine where to perform the measurement on the reference signal. In one or more example methods, beam indication includes information indicating resources used to transmit channel state reports.

[0043] Figure 4 A flowchart is shown of an example method 200 performed by a radio network node for processing non-periodic reports of channel state information from a wireless device, according to this disclosure. The radio network node is the radio network node disclosed herein, such as... Figure 1 and Figure 6 400 radio network nodes.

[0044] In one or more example methods, the method includes: determining, based on channel conditions, whether S202 should send an acknowledgment (ACK) from the WD in response to a beam indication. In one or more example methods, when channel conditions meet a threshold, such as when the SNR is equal to or higher than the SNR threshold, the radio network can determine that it is not necessary to send an ACK from the WD to the radio network node. When the SNR is good, such as when the SNR is equal to or higher than the SNR threshold, the risk that the WD cannot receive and / or decode the beam indication is small. In this case, sending an ACK would increase signaling overhead, and the ACK would use more resources than not sending an ACK. In order to send the acknowledgment, the wireless communication system (such as the WD and the access point, such as the radio network node) would have to switch from downlink mode to uplink mode, which would block the entire Orthogonal Frequency Division Multiplexing (OFDM) symbol.

[0045] In one or more example methods, when channel conditions do not meet a threshold, such as when the SNR is not equal to or higher than the SNR threshold, or when the SNR is lower than the SNR threshold, the radio network can determine that an ACK needs to be sent from the WD to the radio network node. Sending an ACK when the SNR is lower than the SNR threshold can reduce signaling overhead. For example, if an ACK is not needed, and if the WD fails to decode the beam indication, the WD will miss the CSI-RS and will not send a channel state report to the second access point. In this case, the process needs to be repeated, which will consume more resources than sending an ACK. When SNR is low...

[0046] The method includes sending an S204 configuration message to the WD, which indicates whether to send an ACK for beam indication. Therefore, whether the WD sends an ACK can be dynamically triggered by the radio network node.

[0047] In one or more example methods, configuration signaling indicates the duration for which an ACK is not sent or is to be sent. In one or more example methods, configuration signaling may be transmitted along with control signaling (such as beam indication). When transmitting control signaling, information may be considered to be included in the control signaling, such as being transmitted in the same message as the control signaling, or as being transmitted as a separate message associated with the control signaling. Content transmitted in association with control signaling may be considered herein to be transmitted directly before or after beam indication, such as in a subsequent resource. In one or more example methods, control signaling may include the switching time for which the WD will switch between one or more beams indicated in the beam indication.

[0048] The method includes sending S206 control signaling (such as a beam indication) to the WD, the beam indication indicating one or more beams to be reported by the WD. In one or more example methods, the beam indication includes information indicating one or more of the following: resources for transmitting reference signals for measuring channel states, and resources for transmitting channel state reports. In one or more example methods, configuration signaling is included in the beam indication. In one or more example methods, the beam indication includes information indicating the beams for which channel responses are to be reported. The information indicating the beams to be reported may include DCI configuration. The DCI configuration may be related to the settings of radio network nodes (such as access points). Based on the information indicating the beams to be reported, the WD may determine one or more beams to be measured. In one or more example methods, the control signaling may be transmitted together with the configuration signaling, such as in the same message as the control signaling.

[0049] In one or more example methods, transmitting S206 control signaling includes transmitting S206A control signaling, which triggers the WD to perform channel state measurements, such as CSI-RS measurements, on the beam indicated in the beam indication (such as by DCI configuration indication).

[0050] The method includes avoiding the retransmission of S207 control signaling (such as beam indication) for a time duration (such as a predetermined time duration) when the configuration message indicates that no ACK is sent. Currently, radio network nodes retransmit beam indication when no ACK is received.

[0051] According to one or more example methods of this disclosure, a radio network node avoids retransmitting beam indications for a duration of time. The duration of time can be configured to allow the WD to measure the beam indicated in the beam indication and provide a channel response report to the network, such as to a first access point and / or a second access point. By avoiding retransmission of control signaling before the WD has time to transmit a channel response report, the signaling overhead of the beam management procedure can be further reduced.

[0052] In one or more example methods, the method includes: retransmitting the S208 beam indication to the WD if one or more of a channel state report and an indication that a channel response report has been received by the second access point are not received within a time duration. In other words, if the radio network node does not receive a channel response report from the WD or an indication from the second access point that the channel response report has been received by the second access point within the time limit, the radio network node may interpret this as the WD not receiving the beam indication and may retransmit the beam indication to the WD.

[0053] In one or more example methods, the method includes: receiving one or more of the following from S209: a channel state report from the WD for the beam indicated in the beam indication, and an indication from the second access point indicating that the channel state report for the beam indicated in the beam indication has been received by the second access point. Receiving the channel response report can be interpreted as an ACK for control signaling (such as beam indication). In one or more example methods, the channel state report includes information indicating an ACK for the beam indication.

[0054] Figure 5 A block diagram of an example wireless device 300 according to this disclosure is shown. Wireless device 300 includes memory circuitry 301, processor circuitry 302, and wireless interface 303. Wireless device 300 can be configured to perform... Figure 3 Any of the methods disclosed herein. In other words, the wireless device 300 can be configured to process non-periodic reports of channel state information.

[0055] The wireless device 300 is configured to communicate with one or more access points and / or radio network nodes (such as the radio network node 400 disclosed herein) using a wireless communication system.

[0056] The wireless interface 303 is configured to conduct wireless communication via wireless communication systems such as 3GPP systems, such as 3GPP systems supporting one or more of the following: Ultra 5G systems, New Radio (NR), Long Term Evolution (LTE), Narrowband IoT (NB-IoT) and Long Term Evolution-Enhanced Machine Type Communication LTE-M, and 3GPP systems operating in licensed or unlicensed frequency bands.

[0057] The wireless device 300 is configured to receive configuration signaling from a first access point of the radio access network, for example via a wireless interface 303, which indicates whether to send an acknowledgment (ACK) in response to a beam indication.

[0058] The wireless device 300 is configured to receive, for example, a beam indication from a first access point of a radio network node via a wireless interface 303, the beam indication including information indicating one or more beams to be reported by the WD.

[0059] The wireless device 300 is configured to, for example, send a channel status report for the beam indicated in the beam indication to a second access point via the wireless interface 303. The second access point may be the same access point as the first access point, or it may be a different access point.

[0060] Processor circuit 302 is optionally configured to execute Figure 3 Any operation disclosed in (such as any or more of S102, S103, S103A, S104A, S104B, S105, S107). The operation of wireless device 300 may be implemented in the form of executable logic routines (e.g., lines of code, software programs, etc.) stored on a non-transitory computer-readable medium (e.g., memory circuitry 301) and executed by processor circuitry 302.

[0061] Furthermore, the operation of the wireless device 300 can be considered as a method configured to be performed by the wireless device 300. Additionally, while the described functions and operations can be implemented in software, such functions can also be implemented via dedicated hardware or firmware, or some combination of hardware, firmware, and / or software.

[0062] The memory circuit 301 can be one or more of the following: a buffer, flash memory, hard disk drive, removable media, volatile memory, non-volatile memory, random access memory (RAM), or other suitable devices. In a typical arrangement, the memory circuit 301 may include non-volatile memory for long-term data storage and volatile memory used as system memory for the processor circuit 302. The memory circuit 301 can exchange data with the processor circuit 302 via a data bus. Control lines and an address bus may also exist between the memory circuit 301 and the processor circuit 302. Figure 5 (Not shown in the image). The memory circuit 301 is considered a non-transitory computer-readable medium.

[0063] The memory circuit 301 can be configured to store information in a portion of the memory, such as DCI information, configuration signaling indicating whether to send an ACK, channel state information, and / or beam indication information.

[0064] Figure 6 A block diagram of an example network node 400 according to this disclosure is shown. Network node 400 includes memory circuitry 401, processor circuitry 402, and wireless interface 403. Network node 400 can be configured to perform... Figure 4 Any of the methods disclosed herein. In other words, network node 400 can be configured to process non-periodic reports of channel state information from WD.

[0065] Network node 400 is configured to communicate with WDs (such as user equipment nodes disclosed herein) using a wireless communication system. A network node can be a distributed node connected to one or more access points.

[0066] The wireless interface 403 is configured to conduct wireless communication via wireless communication systems such as 3GPP systems, such as 3GPP systems supporting one or more of the following: Super 5G systems, New Radio (NR), Long Term Evolution LTE, Narrowband IoT (NB-IoT) and Long Term Evolution-Enhanced Machine Type Communications LTE-M, and 3GPP systems operating in licensed or unlicensed frequency bands.

[0067] Network node 400 is configured to send a configuration message to WD, for example, via wireless interface 403, which indicates whether to send an ACK for beam indication.

[0068] Network node 400 is configured to send a beam indication to WD, for example, via wireless interface 403, which indicates one or more beams to be reported by WD.

[0069] Network node 400 is configured to avoid retransmitting beam indication for a duration when the configuration message indicates that no ACK should be sent.

[0070] Processor circuit 402 is optionally configured to execute Figure 4 Any operation disclosed in (such as any one or more of S202, S204, S206, S206A, S207, S208, S209). The operation of network node 400 may be implemented in the form of executable logic routines (e.g., lines of code, software programs, etc.) stored on a non-transitory computer-readable medium (e.g., memory circuitry 401) and executed by processor circuitry 402.

[0071] Furthermore, the operation of network node 400 can be considered as a method configured to be performed by network node 400. Additionally, while the described functions and operations can be implemented in software, such functions can also be performed via dedicated hardware or firmware, or some combination of hardware, firmware, and / or software.

[0072] The memory circuit 401 can be one or more of the following: a buffer, flash memory, hard disk drive, removable media, volatile memory, non-volatile memory, random access memory (RAM), or other suitable devices. In a typical arrangement, the memory circuit 401 may include non-volatile memory for long-term data storage and volatile memory used as system memory for the processor circuit 402. The memory circuit 401 can exchange data with the processor circuit 402 via a data bus. Control lines and an address bus may also exist between the memory circuit 401 and the processor circuit 402. Figure 6 (Not shown in the image). The memory circuit 401 is considered a non-transitory computer-readable medium.

[0073] The memory circuit 401 can be configured to store information in a portion of the memory, such as DCI information, configuration signaling indicating whether to send an ACK, channel state information, and / or beam indication information.

[0074] Examples of methods and products (wireless devices and network nodes) based on this disclosure are illustrated in the following items: Project 1. A method for processing channel state information in a wireless device (WD), the method comprising: - Receive configuration signaling (S102) from the first access point of the radio access network, which indicates whether to send an acknowledgment (ACK) in response to a beam indication. - Receive (S103) beam indication from the first access point of the radio network node, the beam indication including information indicating one or more beams to be reported by the WD, and - In response to the beam indication, send a channel status report of the beam indicated in the beam indication to the second access point (S107).

[0075] Project 2. Based on the method of Project 1, wherein the method includes: - Avoid sending an ACK to the first access point when the configuration message indicates that an ACK is not required (S104A).

[0076] Project 3. According to the method of Project 2, the channel state report serves as the ACK for beam indication.

[0077] Project 4. According to the method of Project 3, the channel state report includes information indicating the ACK of the beam indication.

[0078] Project 5. Based on the method of Project 1, wherein the method includes: - When the configuration message indicates that an ACK needs to be sent, send (S104B) ACK to the first access point before sending the channel state report.

[0079] Project 6. According to any of the methods in the preceding projects, wherein the configuration signaling indicates the duration for which an ACK is not sent or is to be sent.

[0080] Project 7. The method according to any of the preceding projects, wherein the configuration signaling is included in the beam indication.

[0081] Project 8. A method according to any one of the preceding projects, wherein the method includes: - Measure (S105) the channel state on one or more beams indicated in the beam indication.

[0082] Project 9. According to the method of Project 8, wherein the channel state report includes information indicating the measured channel state.

[0083] Project 10. According to any of the methods in the preceding projects, wherein the first access point and the second access point are controlled by the same logic.

[0084] Project 11. According to any of the methods in the preceding projects, wherein the first access point and the second access point are the same access point or different access points.

[0085] Item 12. The method according to any one of the preceding items, wherein the beam indication includes information indicating one or more of the following: - Resources for transmitting reference signals used to measure channel state, and resources for transmitting channel state reports.

[0086] Project 13. The method according to any of the preceding projects, wherein the beam indication acts as a trigger for the channel state report.

[0087] Item 14. A method for processing non-periodic reports of channel state information from a wireless device WD, performed in a radio network node, the method comprising: - Send a configuration message (S204) to WD, indicating whether to send an ACK for beam indication. - Send a (S206) beam indication to the WD, which indicates one or more beams to be reported by the WD, and - When the configuration message indicates that no ACK is sent, avoid retransmitting the beam indication for the duration of the time (S207).

[0088] Item 15. According to the method of Item 14, the method includes: - Based on the channel conditions, determine (S202) whether to send an ACK from WD in response to the beam indication.

[0089] Item 16. The method according to any one of Items 14 to 15, wherein the configuration signaling is included in the beam indication.

[0090] Item 17. The method according to any one of Items 14 to 16, wherein the method includes: - If one or more of the channel status report and the indication that the channel response report has been received by the second access point are not received within the time duration, retransmit the beam indication to the WD (S208).

[0091] Item 18. The method according to any one of Items 14 to 17, wherein the method includes: - Receive (S209) one or more of the following: a channel state report from the WD for the beam indicated in the beam indication, and an indication from the second access point that the channel state report for the beam indicated in the beam indication has been received by the second access point.

[0092] Item 19. According to the method of Item 18, wherein the channel state report includes information indicating the ACK of the beam indication.

[0093] Item 20. The method according to any one of Items 14 to 19, wherein the configuration signaling indicates the duration for which an ACK is not sent or is to be sent.

[0094] Item 21. The method according to any one of Items 14 to 20, wherein the beam indication includes information indicating one or more of the following: - Resources for transmitting reference signals used to measure channel state, and resources for transmitting channel state reports.

[0095] Item 22. A wireless device comprising memory circuitry, processor circuitry, and a wireless interface, wherein the wireless device is configured to perform any one of the methods according to any one of items 1 to 13.

[0096] Item 23. A radio network node including memory circuitry, processor circuitry, and a wireless interface, wherein the radio network node is configured to perform any one of the methods according to any one of items 14 to 21.

[0097] The use of the terms "first," "second," "third," and "fourth," "primary," "secondary," and "third-level," etc., does not imply any particular order, but is included to identify individual elements. Furthermore, the use of the terms "first," "second," "third," and "fourth," "primary," "secondary," and "third-level," etc., does not indicate any order or importance, but is used to distinguish one element from another. It should be noted that the terms "first," "second," "third," and "fourth," "primary," "secondary," and "third-level," etc., here and elsewhere, are used solely for labelling purposes and are not intended to indicate any particular spatial or temporal order. Moreover, the labeling of a first element does not imply the existence of a second element, and vice versa.

[0098] Understandable. Figures 1 to 6 This includes circuits or operations illustrated with solid lines and circuits, components, features, or operations illustrated with dashed lines. Circuits or operations included with solid lines are those included in the most broad examples. Circuits, components, features, or operations included with dashed lines are examples that can be included in the circuits, components, features, or operations of the solid-line examples, or are part of the circuits, components, features, or operations of the solid-line examples, or are other circuits, components, features, or operations that can be employed in addition to those of the solid-line examples. It should be understood that these operations do not need to be performed in the order presented. Furthermore, it should be understood that not all operations need to be performed. Example operations can be performed in any order and in any combination. It should be understood that these operations do not need to be performed in the order presented. Circuits, components, features, or operations included with dashed lines can be considered optional.

[0099] Other operations not described in this document may be incorporated into the example operations. For example, one or more additional operations may be performed before, after, simultaneously with, or between any of the described operations.

[0100] Some of the features discussed above as individual implementations can also be implemented in combination as a single implementation. Conversely, features described as a single implementation can also be implemented individually or in any suitable sub-combination in multiple implementations. Furthermore, although features may be described above as functioning in certain combinations, in some cases, one or more features from the claimed combination can be removed from that combination, and that combination can be claimed as any sub-combination or a variation of any sub-combination.

[0101] It should be noted that the word "including" does not necessarily exclude the presence of other elements or steps besides those listed.

[0102] It should be noted that the words "a" or "an" preceding an element do not preclude the existence of multiple such elements.

[0103] It should be noted that the term "indicator" can be considered as "associated with," "related to," "describe," "represent," and / or "define." The terms "indicator," "associated with," "related to," "describe," "represent," and "define" are used interchangeably. The term "indicator" can be considered as indicating a relation. For example, weight data indicating weights may include one or more weight parameters.

[0104] It should be noted that the term "based on" can be considered as "as a function of" and / or "derived from". The terms "based on" and "as a function of" are used interchangeably. For example, parameters determined "based on" a dataset can be considered as parameters determined "as a function of the dataset". In other words, parameters can be the output of one or more functions, with the dataset as input.

[0105] Functions can represent the relationship between inputs and outputs, such as mathematical relationships, database relationships, hardware relationships, logical relationships, and / or other suitable relationships.

[0106] It should also be noted that no reference numerals in the drawings limit the scope of the claims, examples may be implemented at least in part by means of both hardware and software, and several “apparatus”, “units” or “devices” may be represented by the same piece of hardware.

[0107] The degree language used herein (such as the terms "approximately," "about," "roughly," and "substantially" as used herein) refers to a value, quantity, or characteristic that is close to the stated value, quantity, or characteristic, still performs the desired function, or achieves the desired result. For example, the terms "approximately," "about," "roughly," and "substantially" can refer to a quantity that is less than or equal to 10%, less than or equal to 5%, less than or equal to 1%, less than or equal to 0.1%, and less than or equal to 0.01%. If the quantity is 0 (e.g., none), the ranges listed above can be specific ranges and not within a specific percentage of that value. For example, less than or equal to 10% by weight / volume, less than or equal to 5% by weight / volume, less than or equal to 1% by weight / volume, less than or equal to 0.1% by weight / volume, and less than or equal to 0.01% by weight / volume.

[0108] The various example methods, devices, nodes, and systems described herein are described in the general context of method steps or processes. In one aspect, these steps or processes can be implemented by a computer program product embodied in a computer-readable medium, which includes computer-executable instructions, such as program code, executed by a computer in a networked environment. The computer-readable medium can include removable and non-removable storage devices, including but not limited to read-only memory (ROM), random access memory (RAM), optical disc (CD), digital versatile disc (DVD), etc. Generally, program circuitry can include routines, programs, objects, components, data structures, etc., that perform a specified task or implement a particular abstract data type. The computer-executable instructions, associated data structures, and program circuitry represent examples of program code for performing steps of the methods disclosed herein. A particular sequence of such executable instructions or associated data structures represents examples of corresponding actions for implementing the functionality described in such steps or processes.

[0109] Although features have been shown and described, it should be understood that they are not intended to limit the claimed disclosure, and it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the scope of the claimed disclosure. Accordingly, this specification and drawings are to be considered illustrative rather than restrictive. The claimed disclosure is intended to cover all alternatives, modifications, and equivalents.

Claims

1. A method for processing channel state information in a wireless device (WD) through a non-periodic reporting process, the method comprising: - Receive configuration signaling (S102) from the first access point of the radio access network, the configuration signaling indicating whether to send an acknowledgment (ACK) in response to a beam indication. - Receive (S103) beam indication from the first access point of the radio network node, the beam indication including information indicating one or more beams to be reported by the WD, and - In response to the beam indication, send (S107) a channel state report of the beam indicated in the beam indication to the second access point.

2. The method according to claim 1, wherein, The method includes: - Avoid sending an ACK to the first access point when the configuration message indicates that an ACK is not required (S104A).

3. The method according to claim 2, wherein, The channel state report serves as the ACK for the beam indication.

4. The method according to claim 3, wherein, The channel state report includes information indicating the ACK of the beam indication.

5. The method according to claim 1, wherein, The method includes: - When the configuration message indicates that an ACK needs to be sent, send (S104B) ACK to the first access point before sending the channel state report.

6. The method according to any one of the preceding claims, wherein, The configuration signaling indicates the duration for which the ACK should or should not be sent.

7. The method according to any one of the preceding claims, wherein, The configuration signaling is included in the beam indication.

8. The method according to any one of the preceding claims, wherein, The method includes: - Measure (S105) the channel state on one or more beams indicated in the beam indication.

9. The method according to claim 8, wherein, The channel state report includes information indicating the measured channel state.

10. The method according to any one of the preceding claims, wherein, The first access point and the second access point are controlled by the same logic.

11. The method according to any one of the preceding claims, wherein, The first access point and the second access point may be the same access point or different access points.

12. The method according to any one of the preceding claims, wherein, The beam indication includes information indicating one or more of the following: - Resources for transmitting reference signals used to measure channel state, and resources for transmitting the channel state report.

13. The method according to any one of the preceding claims, wherein, The beam indication acts as a trigger for channel state reporting.

14. A method for processing non-periodic reports of channel state information from a wireless device WD, performed in a radio network node, the method comprising: - Send a configuration message (S204) to the WD, the configuration message indicating whether to send an ACK for beam indication. - Send a beam indication (S206) to the WD, the beam indication indicating one or more beams to be reported by the WD, and - When the configuration message indicates that the ACK should not be sent, the beam indication is avoided (S207) for a period of time.

15. The method according to claim 8, wherein, The method includes: - Based on the channel conditions, determine (S202) whether to send an ACK from the WD in response to the beam indication.

16. The method according to any one of claims 14 to 15, wherein, The configuration signaling is included in the beam indication.

17. The method according to any one of claims 8 to 9, wherein, The method includes: - If a channel status report is not received within the specified time duration and there is an indication that the channel response report has been received by the second access point, the beam indication is retransmitted to the WD (S208).

18. The method according to any one of claims 14 to 17, wherein, The method includes: - Receive (S209) one or more of the following: a channel state report from the WD for the beam indicated in the beam indication, and an indication from the second access point that the channel state report for the beam indicated in the beam indication has been received by the second access point.

19. The method according to claim 18, wherein, The channel state report includes information indicating the ACK of the beam indication.

20. The method according to any one of claims 14 to 19, wherein, The configuration signaling indicates the duration for which the ACK should or should not be sent.

21. The method according to any one of claims 14 to 20, wherein, The beam indication includes information indicating one or more of the following: - Resources for transmitting reference signals used to measure channel state, and resources for transmitting the channel state report.

22. A wireless device, comprising a memory circuit, a processor circuit, and a wireless interface, wherein, The wireless device is configured to perform any one of the methods according to any one of claims 1 to 13.

23. A radio network node, comprising a memory circuit, a processor circuit, and a wireless interface, wherein, The radio network node is configured to perform any one of the methods according to any one of claims 14 to 21.

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