Method and apparatus for configuring interference measurements and reports

Abstract

The present disclosure describes methods, systems, and devices for configuring measurement subband configurations for interference measurement and reporting. A method includes determining, by a user equipment (UE), a measurement subband (MSB) configuration for interference measurement and reporting, the MSB configuration including at least one of size information and partition information of a plurality of MSBs in a frequency range, the frequency range including uplink (UL) subbands; and transmitting, by the UE, feedback information to the base station, the feedback information including a measurement result for at least one MSB of the plurality of MSBs. Another method includes transmitting, by a base station, an MSB configuration to a UE; and receiving, by the base station, feedback information from the UE.

Description

Technical Field

[0001] The present disclosure relates generally to wireless communications and, more particularly, to methods and apparatus for configuring interference measurements and reporting. Background Art

[0002] Wireless communication technology is driving the world towards an increasingly connected and networked society. In wireless communication systems, time domain resources are split between downlink and uplink communications. An emerging trend in mobile communications is to use multiple wireless technologies in parallel. When uplink and downlink communications exist in different frequency domain resources in the same time domain resource, cross-link interference of time-frequency resources may occur, hampering the performance of wireless communication.

[0003] The present disclosure describes various embodiments for configuring interference measurement and reporting, solves at least one of the issues / problems associated with cross-link interference of time-frequency resources, provides improvements in the field of wireless communication technology, and enhances the efficiency and performance of wireless communications. Summary of the invention

[0004] The present document relates to methods, systems, and devices for configuring measurement subband configurations for interference measurement and reporting, which can effectively configure subband-based cross-link interference (CLI) measurements and reporting with reasonable feedback overhead, and / or obtain more accurate measurement results for subsequent interference coordination.

[0005] In one embodiment, the present disclosure describes a method for wireless communication. The method includes: determining, by a user equipment (UE), a measurement subband (MSB) configuration for interference measurement and reporting, the MSB configuration including at least one of the following: size information and division information of multiple MSBs in a frequency range, the frequency range including an uplink (UL) subband; and transmitting, by the UE to a base station, feedback information including a measurement result for at least one MSB among the multiple MSBs.

[0006] In one embodiment, the present disclosure describes a method for wireless communication. The method includes: sending, by a base station, a measurement subband (MSB) configuration for interference measurement and reporting to a user equipment (UE), the MSB configuration including at least one of the following: size information and division information of multiple MSBs in a frequency range, the frequency range including an uplink (UL) subband; and receiving, by the base station, feedback information from the UE, the feedback information including a measurement result for at least one MSB among the multiple MSBs.

[0007] In some other embodiments, an apparatus for wireless communication may include a memory storing instructions and a processing circuit in communication with the memory. When the processing circuit executes the instructions, the processing circuit is configured to implement the above method.

[0008] In some other embodiments, a device for wireless communication may include a memory storing instructions and a processing circuit in communication with the memory. When the processing circuit executes the instructions, the processing circuit is configured to implement the above method.

[0009] In some other embodiments, a computer-readable medium includes instructions that, when executed by a computer, cause the computer to implement the above method.

[0010] The above and other aspects and embodiments thereof are described in more detail in the drawings, the description and the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1A An example of a wireless communication system including a radio network node and one or more user equipments is shown.

[0012] Figure 1B A schematic diagram showing cross-link interference is shown.

[0013] Figure 2 An example of a network node is shown.

[0014] Figure 3 An example of a user device is shown.

[0015] Figure 4 Schematic diagram showing the effect of a roll-off filter.

[0016] Figure 5 A schematic diagram showing a frequency range configured with one or more sub-bands is shown.

[0017] Figure 6 A flow chart of a method for wireless communication is shown.

[0018] Figure 7 A flow chart of another method for wireless communication is shown.

[0019] Figure 8 A schematic diagram of a non-limiting embodiment for wireless communication is shown.

[0020] Fig.9A A schematic diagram of another non-limiting embodiment for wireless communication is shown.

[0021] Fig. 9B A schematic diagram of another non-limiting embodiment for wireless communication is shown.

[0022] Fig. 9C A schematic diagram of another non-limiting embodiment for wireless communication is shown.

[0023] Fig.9D A schematic diagram of another non-limiting embodiment for wireless communication is shown.

[0024] Fig.9E A schematic diagram of another non-limiting embodiment for wireless communication is shown.

[0025] Fig.10 A schematic diagram of another non-limiting embodiment for wireless communication is shown.

[0026] Fig.11 A schematic diagram of another non-limiting embodiment for wireless communication is shown.

[0027] Fig.12 A schematic diagram of another non-limiting embodiment for wireless communication is shown.

[0028] Fig.13A A schematic diagram of another non-limiting embodiment for wireless communication is shown.

[0029] Fig. 13B A schematic diagram of another non-limiting embodiment for wireless communication is shown. DETAILED DESCRIPTION

[0030] The present disclosure will now be described in detail below with reference to the accompanying drawings, which form a part of the present disclosure and show specific examples of embodiments by way of illustration. However, it is noted that the present disclosure can be embodied in a variety of different forms, and thus the subject matter covered or claimed is intended to be interpreted as not being limited to any of the embodiments set forth below.

[0031] Throughout the specification and claims, terms may have nuanced meanings that are suggested or implied in the context beyond the explicitly stated meanings. Similarly, the phrases "in one embodiment" or "in some embodiments" used herein do not necessarily refer to the same embodiment, and the phrases "in another embodiment" or "in other embodiments" used herein do not necessarily refer to different embodiments. The phrases "in one embodiment" or "in some embodiments" used herein do not necessarily refer to the same embodiment, and the phrases "in another embodiment" or "in other embodiments" used herein do not necessarily refer to different embodiments. For example, it is intended that the claimed subject matter includes, in whole or in part, a combination of exemplary embodiments or embodiments.

[0032] Typically, terms may be understood at least in part from usage in context. For example, terms such as "and", "or" or "and / or" used herein may include various meanings that may depend at least in part on the context in which the terms are used. Typically, "or" if used for an association list (such as A, B or C) is intended to represent A, B and C (here used for inclusive meanings), and A, B or C (here used for exclusive meanings). In addition, depending at least in part on the context, the terms "one or more" or "at least one" used herein may be used to describe any feature, structure or characteristic in a singular sense, or may be used to describe a combination of features, structures or characteristics in a plural sense. Similarly, depending at least in part on the context, terms such as "a", "an" or "the" may also be understood to convey singular usage or to convey plural usage. In addition, the term "based on" or "determined by..." may be understood to not necessarily be intended to convey a set of factors that are exclusive, but, also at least in part on the context, may allow for the presence of additional factors that are not necessarily explicitly described.

[0033] This disclosure describes methods and apparatus for configuring interference measurements and reporting.

[0034] Next generation (NG) (or fifth generation (5G)) wireless communications can provide a range of capabilities from fast downloads to support for real-time low-latency communications. Next generation (NG) mobile communication systems are moving the world towards an increasingly connected and networked society. To meet increasing demands, the 4th Generation mobile communication technology (4G) Long-Term Evolution (LTE) or Advanced LTE (LTE-Advance, LTE-A) and 5G mobile communication technology are developing support for the following features: enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC) and massive machine-type communication (mMTC). Full duplex is one of the features developed for 5G and future communication systems.

[0035] In some embodiments of the wireless communication system, time domain resources are divided between downlink and uplink in time division duplex (TDD). Allocating a limited duration for the uplink in TDD will result in reduced coverage, increased latency, and reduced capacity. As a possible enhancement to this limitation of traditional TDD operation, it may be worthwhile to study the feasibility of allowing downlink and uplink to exist simultaneously (i.e., full duplex, or more specifically, subband non-overlapping full duplex (SBFD)) on the base station side (e.g., gNB) within the traditional TDD frequency band. Both uplink and downlink may exist in different frequency domain resources of the same time domain resources.

[0036] For non-limiting examples, see Figure 1B For the same cell under the base station, there are two different frequency resources with different frame structures (for example, for time slot 0, time slot 1, time slot 2, time slot 3 and time slot 4), one (161) is DDDSU and the other (162) is DSUUU, where D means "downlink", U means "uplink", and S means "flexible resource". These frame structures can be further updated according to dynamic scheduling or dynamic frame structure indication (for example, slot format indicator (SFI)). Then, during the middle three time intervals (for example, time slot 1, time slot 2 and time slot 3), the attributes between different frequency resources may be different. For different UEs, the base station can simultaneously transmit a physical downlink shared channel (PDSCH) and receive a physical uplink shared channel (PUSCH), for example, the base station transmits PDSCH to one UE (UE1) in time slot 2 and simultaneously receives PUSCH from another UE (UE2). In these cases, cross-link interference may exist for time-frequency resources with frame structures of different attributes. Specifically, the downlink transmission of a gNB (i.e., Figure 1B PDSCH in the uplink may interfere with uplink reception (i.e. Figure 1B In SBFD, this interference can be called gNB self-interference.

[0037] There may be various problems / issues associated with how to ensure uplink / downlink transmission performance in the case of gNB self-interference. One of these problems / issues may include how to configure interference measurement and reporting. After the interference information is accurately and effectively obtained / measured, effective / target coordination between uplink transmission / downlink transmission can be performed.

[0038] The present disclosure describes methods and apparatus for configuring interference measurement and reporting, which solves at least one of the problems / issues and enhances uplink transmission performance in the presence of gNB self-interference or inter-gNB interference.

[0039] Figure 1A A wireless communication system 100 is shown including a core network (CN) 110, a radio access network (RAN) 130, and one or more user equipment (UE) (152, 154, and 156). The RAN 130 may include a wireless network base station, or a NG radio access network (NG-RAN) base station or node, which may include a node B (NB, e.g., gNB) in a mobile telecommunication environment. In one embodiment, the core network 110 may include a 5G core network (5GC), and the interface 125 may include a new generation (NG) interface.

[0040] Reference Figure 1A , the first UE 152 may wirelessly receive one or more downlink communications 142 from the RAN 130 and wirelessly send one or more uplink communications 141 to the RAN 130. Similarly, the second UE 154 may wirelessly receive downlink communications 144 from the RAN 130 and wirelessly send uplink communications 143 to the RAN 130; and the third UE 156 may wirelessly receive downlink communications 146 from the RAN 130 and wirelessly send uplink communications 145 to the RAN 130. For example, but not limited to, the downlink communications may include a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDCCH), and the uplink communications may include a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH).

[0041] Figure 2An exemplary radio access network or wireless communication base station 200 is shown. The base station 200 may include wireless transmitting / receiving (Tx / Rx) circuitry 208 to send / receive communications with one or more UEs and / or one or more other base stations. The base station may also include network interface circuitry 209 (e.g., optical or wired interconnect, Ethernet and / or other data transmission media / protocols) to enable the base station to communicate with other base stations and / or a core network. The base station 200 may optionally include an input / output (I / O) interface 206 to communicate with an operator or the like.

[0042] The base station may also include system circuitry 204. System circuitry 204 may include (one or more) processors 221 and / or memory 222. Memory 222 may include an operating system 224, instructions 226, and parameters 228. Instructions 226 may be configured for one or more processors 124 to perform the functions of the base station. Parameters 228 may include parameters that support the execution of instructions 226. For example, the parameters may include network protocol settings, bandwidth parameters, radio frequency mapping allocations, and / or other parameters.

[0043] Figure 3An exemplary user equipment (UE) 300 is shown. UE 300 may be a mobile device, such as a smart phone or a mobile communication module provided in a vehicle. UE 300 may include a communication interface 302, a system circuit 304, an input / output (I / O) interface 306, a display circuit 308, and a storage device 309. Display circuit 308 may include a user interface 310. System circuit 304 may include any combination of hardware, software, firmware, or other logic / circuits. System circuit 304 may be implemented, for example, with one or more systems on a chip (SoC), application specific integrated circuits (ASIC), discrete analog and digital circuits, and other circuits. System circuit 304 may be part of the implementation of any desired function in UE 300. In this regard, the system circuit 304 may include logic to facilitate operations such as: decoding and playing music and video (e.g., MP3, MP4, MPEG, AVI, FLAC, AC3, or WAV decoding and playback); running applications; accepting user input; saving and retrieving application data; establishing, maintaining, and terminating cellular phone calls or data connections (e.g., for Internet connections); establishing, maintaining, and terminating wireless network connections, Bluetooth connections, or other connections; and displaying relevant information on the user interface 310. The user interface 310 and the input / output (I / O) interface 306 may include a graphical user interface, a touch-sensitive display, tactile feedback or other tactile output, voice or facial recognition input, buttons, switches, speakers, and other user interface elements. Additional examples of the I / O interface 306 include microphones, video and still image cameras, temperature sensors, vibration sensors, rotation and orientation sensors, headphone and microphone input / output jacks, Universal Serial Bus (USB) connectors, memory card slots, radiation sensors (e.g., IR (infrared) sensors), and other types of inputs.

[0044] Reference Figure 3, the communication interface 302 may include radio frequency (RF) transmit (Tx) and receive (Rx) circuits 316 that process the transmission and reception of signals through one or more antennas 314. The communication interface 302 may include one or more transceivers. The transceiver may be a wireless transceiver that includes modulation / demodulation circuitry, a digital to analog converter (DAC), a shaping table, an analog to digital converter (ADC), a filter, a waveform shaper, a filter, a pre-amplifier, a power amplifier, and / or other logic for transmitting and receiving through one or more antennas or (for some devices) through a physical (e.g., wired) medium. The transmitted and received signals may follow any of a variety of formats, protocols, modulations (e.g., QPSK (Quadrature Phase Shift Keying), 16-QAM (Quadrature Amplitude Modulation), 64-QAM or 256-QAM), frequency channels, bit rates, and encodings. As a specific example, the communication interface 302 may include a transceiver that supports transmission and reception under 2G, 3G, BT (Bluetooth), WiFi (Wireless Fidelity), Universal Mobile Telecommunications System (UMTS), High Speed ​​Packet Access (HSPA)+, 4G / Long Term Evolution (LTE), and 5G standards. However, the techniques described below, whether from the 3rd Generation Partnership Project (3GPP), the GSM (Global System for Mobile Communications) Association, 3GPP2, the IEEE (Institute of Electrical and Electronics Engineers), or other partners or standards bodies, are applicable to other wireless communication technologies.

[0045] Reference Figure 3, the system circuit 304 may include one or more processors 321 and a memory 322. The memory 322 stores, for example, an operating system 324, instructions 326, and parameters 328. The processor 321 is configured to execute the instructions 326 to implement the desired functions of the UE 300. The parameters 328 may provide and specify configuration and operating options for the instructions 326. The memory 322 may also store any BT, WiFi, 3G, 4G, 5G, or other data that the UE 300 will send or has received through the communication interface 302. In various embodiments, the system power of the UE 300 may be supplied by a power storage device (such as a battery or a transformer).

[0046] The present disclosure describes several embodiments of methods and apparatus for configuring interference measurement and reporting, which may be partially or completely implemented in the above Figure 2 and Figure 3 The method is implemented on a wireless network base station and / or a user equipment described in the embodiment.

[0047] In various embodiments, reference Figure 4 , the signal needs to be filtered before being transmitted through the air so that the signal can be limited to the desired frequency range. The desired frequency range can be the range between fB / 2 and f+B / 2 (410), where f is the center frequency and B is the bandwidth. Ideally, after filtering, there should be no leakage signal outside the desired frequency range. However, due to the limitations of technology and implementation complexity, there will always be leakage signals outside the desired frequency range. Typically, the output of the signal after filtering can be as follows Figure 4 As shown in the example in. For a desired signal with a center frequency of f and a bandwidth of B, the leakage signal within the bandwidth B adjacent to the desired signal (i.e., from f-3B / 2 to fB / 2 (420) and from f+B / 2 to f+3B / 2 (425)) is stronger than the leakage signal within the bandwidth B far away from the desired signal (e.g., from f-5B / 2 to f-3B / 2 (430) and from f+3B / 2 to f+5B / 2 (435)). At the same time, the leakage signal within the bandwidth B adjacent to the desired signal is more dynamic. The leakage signal can be an interference to the desired signal within the frequency resources from f-5B / 2 to fB / 2 and from f+B / 2 to f+5B / 2. This can be called a "roll-off filter".

[0048] At least due to the roll-off filter effect, uplink transmissions (such as PUSCH) in a UL subband may be interfered with by DL transmissions in adjacent DL subbands on one or both sides. This type of interference may be referred to as gNB self-interference or inter-subband interference.

[0049] Similarly, due at least to the roll-off filter effect, a downlink transmission (such as PDSCH) in a DL subband or the remainder may be interfered with by UL transmissions in adjacent UL subbands on one or both sides. This type of interference may be referred to as inter-subband UE-to-UE interference.

[0050] The present disclosure describes various embodiments of methods and apparatus for configuring interference measurement and reporting, addressing at least some of the issues / problems associated with the above-mentioned interference.Various embodiments may include accurately and efficiently obtaining / measuring interference levels in different frequency domains.

[0051] In some embodiments, subband-level channel quality indicator (CQI) and / or precoding matrix indicator (PMI) measurement and reporting may be implemented, wherein a bandwidth part (BWP) may be divided into a plurality of measurement subbands in a predefined manner. For example, as shown in Table 1, for each bandwidth range of BWP (i.e., the amount of physical resource blocks (PRBs) in the bandwidth of the BWP), two candidate values ​​of the measurement subband size are predefined; and / or a radio resource control (RRC) parameter (e.g., subbandSize) may be used to configure one of these measurement subband sizes as the final size of the measurement subband.

[0052] Table 1: Configurable measurement subband sizes

[0053] Bandwidth Part (PRB) Measurement subband size (PRB) 24–72 4,8 73–144 8,16 145–275 16,32

[0054] In some implementations, the size of the first measurement subband and the size of the last measurement subband are also related to the position of the BWP within the carrier. More specifically, the size of the first measurement subband may be determined by Given; and if The final measured subband size can be obtained by Given, and if The final measured subband size can be obtained by Given. It is BWP i The common resource block relative to the start of common resource block 0. It is BWP i size. is the size of the measurement subband determined according to Table 1 and the configuration of the RRC parameter (eg, subbandSize). In the present disclosure, "mod" may refer to a modular operation, which returns the remainder after dividing one number by another.

[0055] In various embodiments of the present disclosure, the "first" element may refer to the "smallest" numbered element in a group of elements; and the "last" element may refer to the "largest" numbered element in the group of elements. Figure 5 In the example of , BWP (510) may include three measurement subbands (511, 512, and 513). The first measurement subband may refer to the measurement subband with the smallest number, i.e., measurement subband 1 (511); and / or the last measurement subband may refer to the measurement subband with the largest number, i.e., measurement subband 3 (513).

[0056] Reference Figure 5 The example shown, It can be 4 (ie, 4 PRBs). The size of the first measurement subband (ie, measurement subband 1) is 2 PRBs, the size of the last measurement subband (ie, measurement subband 3) is 3 PRBs, and the size of other measurement subbands including measurement subband 2 (512) is 4 PRBs.

[0057] The present disclosure describes various embodiments for measuring subband-level interference measurement and reporting, addressing at least one of the following problems / issues: how to configure measurement subbands in a time domain region where uplink (UL) subbands are configured, and / or how to perform measurement reporting based on measurement subbands.

[0058] In various embodiments, Figure 6 A flow chart of a method 600 for wireless communication is shown. The method 600 may include some or all of the following steps: step 610, determining, by a user equipment (UE), a measurement subband (MSB) configuration for interference measurement and reporting, the MSB configuration including at least one of the following: size information and division information of multiple MSBs in a frequency range, the frequency range including an uplink (UL) subband; and / or step 620, transmitting, by the UE to a base station, feedback information including a measurement result for at least one MSB among the multiple MSBs.

[0059] In various embodiments, Figure 7A flow chart of a method 700 for wireless communication is shown. The method 700 may include some or all of the following steps: step 710, a base station sends a measurement subband (MSB) configuration for interference measurement and reporting to a user equipment (UE), the MSB configuration including at least one of the following: size information and division information of multiple MSBs in a frequency range, the frequency range including an uplink (UL) subband; and / or step 720, the base station receives feedback information from the UE, the feedback information including a measurement result for at least one MSB among the multiple MSBs.

[0060] In some embodiments, in addition to part or combination of the described embodiments / examples, the size information of multiple MSBs in the frequency range includes the MSB size; or, the MSB size is determined according to a predefined table based on one of the following: the frequency range bandwidth, the bandwidth of the UL subband subtracted from the frequency range, and for more than one remaining part after subtracting the UL subband from the frequency range: the bandwidth of the smallest remaining part among the more than one remaining part, the bandwidth of the largest remaining part among the more than one remaining part, or the average bandwidth of the more than one remaining part. Each remaining part is obtained by subtracting the UL subband from the frequency range and occupies continuous spectrum resources. The frequency range can be a BWP, or a group of continuous resource blocks (RBs) within a carrier or a BWP.

[0061] In some embodiments, in addition to some or a combination of the described embodiments / examples, for the case where a predefined table includes more than one candidate MSB size, a radio resource control (RRC) parameter is used to indicate one of the more than one candidate MSB sizes as the MSB size.

[0062] In some embodiments, in addition to part or combination of the described embodiments / examples, for the case where there is only one remaining part after subtracting the UL subband from the frequency range, the size information of the first MSB and the last MSB among the multiple MSBs is related to the position of the remaining part in the frequency range or carrier.

[0063] In some embodiments, in addition to some or a combination of the described embodiments / examples, for the case where there is more than one remaining part after subtracting the UL subband from the frequency range, the more than one remaining part is aggregated and divided into multiple MSBs.

[0064] In some embodiments, in addition to some or a combination of the described embodiments / examples, an MSB of the plurality of MSBs spans a UL subband; or an MSB of the plurality of MSBs includes one or more physical resource blocks (PRBs) on both sides of the UL subband.

[0065] In some embodiments, in addition to part or combination of the described embodiments / examples, the frequency range is divided into a plurality of MSBs; and / or at least one MSB of the plurality of MSBs overlaps with a UL sub-band.

[0066] In some embodiments, in addition to part or a combination of the described embodiments / examples, for an MSB among multiple MSBs that completely overlaps with the UL subband, the UE does not perform interference measurement on the MSB; and / or for an MSB among multiple MSBs that partially overlaps with the UL subband, the UE only performs interference measurement on the portion of the MSB that does not overlap with the UL subband.

[0067] In some embodiments, in addition to part or a combination of the described embodiments / examples, for an MSB among multiple MSBs that is adjacent to a UL subband, size information of the MSB is determined based on at least one of: the size of the frequency range; the starting physical resource block (PRB) of the frequency range; the starting PRB of the UL subband; or the ending PRB of the UL subband.

[0068] In some implementations, in addition to part or combination of the described implementations / embodiments, the UE only measures a plurality of MSBs in the time domain resources with UL subbands.

[0069] In some implementations, except for some or a combination of the described implementations / embodiments, the UE does not measure a plurality of MSBs in another time domain resource without a UL subband.

[0070] In some embodiments, except for some or a combination of the described embodiments / examples, the plurality of MSBs have inconsistent sizes; and / or the size information of the plurality of MSBs is determined based on a reference MSB size.

[0071] In some implementations, in addition to part or combination of the described implementations / embodiments, size information of the plurality of MSBs is determined based on at least one of a scale factor and an MSB index.

[0072] In some embodiments, in addition to part or a combination of the described embodiments / examples, the first MSB adjacent to the UL subband is determined as a reference MSB size, and / or subsequent MSBs relative to the first MSB are determined based on one of: the product of the reference MSB size and a scaling factor, or the product of the reference MSB size and an MSB index, or the product of the reference MSB size, a scaling factor, and an MSB index.

[0073] In some embodiments, in addition to some or a combination of the described embodiments / examples, for the case where the frequency range has two remaining parts, the two remaining parts share a reference MSB size and a scaling factor, or the two remaining parts have different reference MSB sizes or different scaling factors.

[0074] In some embodiments, in addition to part or a combination of the described embodiments / examples, the sizes of multiple MSBs are also determined based on the measurement result offset, wherein: the first MSB adjacent to the UL subband is determined as the reference MSB size and has an initial measurement result, and / or subsequent MSBs relative to the first MSB are determined based on the reference MSB size, the initial measurement result and the measurement result offset.

[0075] In some embodiments, in addition to some or a combination of the described embodiments / examples, for the case where the frequency range has two remaining parts, the two remaining parts share a reference MSB size and a measurement result offset, or the two remaining parts have different reference MSB sizes or different measurement result offsets.

[0076] In some embodiments, in addition to part or combination of the described embodiments / examples, the feedback information includes a first part and a second part, wherein: the first part has a fixed size; and / or the first part indicates the size of the second part.

[0077] In some embodiments, in addition to some or a combination of the described embodiments / examples, the first part includes a bitmap; each bit of the bitmap indicates whether a corresponding MSB among multiple MSBs is fed back; and / or the fixed size of the first part has the same value as the number of MSBs among the multiple MSBs.

[0078] In some embodiments, in addition to part or combination of the described embodiments / examples, the first part includes a boundary MSB index indicating a range of an MSB among the plurality of MSBs to be fed back.

[0079] In some embodiments, in addition to some or a combination of the described embodiments / examples, the first part includes a bitmap; each bit of the bitmap indicates whether the corresponding MSB shares the same measurement result with an adjacent MSB; and / or the fixed size of the first part has the same value as the number of MSBs in the multiple MSBs.

[0080] In some embodiments, in addition to part or combination of the described embodiments / examples, a lower bit in the bitmap corresponds to a lower-frequency MSB among multiple MSBs; for the case where a bit and a lower bit adjacent to the bit are the same value, the corresponding MSB and the lower-frequency MSB adjacent to the corresponding MSB share the same measurement result; and / or for the case where a bit and a lower bit adjacent to the bit are different values, the corresponding MSB and the lower-frequency MSB adjacent to the corresponding MSB have different measurement results.

[0081] Example 1

[0082] This disclosure describes non-limiting embodiments of measurement subband configurations for interference measurement and reporting.In the following description of various embodiments, BWP is used as a non-limiting example of a frequency range.

[0083] In some embodiments, there are at least three different methods for determining the measurement subband (MSB) size for a BWP including a UL subband. Figure 8 In the non-limiting example of FIG. 8 , the BWP (810) includes 96 PRBs. A UL subband (820) is configured within the BWP and includes 48 PRBs. When the UL subband is subtracted from the BWP, two remainders are obtained: a first remainder (remaining part 1, 831) includes 12 PRBs, and a second remainder (remaining part 2, 832) includes 36 PRBs.

[0084] Referring to a method for determining a measurement subband (MSB) size, the bandwidth of the BWP may be used to determine the size of the MSB according to a predefined rule. The predefined rule may include Table 1 or a newly defined configurable MSB size table. As an example, 96 PRBs belong to the range of {73 to 144} PRBs in Table 1, so the candidate sizes of the MSB are 8 and 16. An RRC parameter (e.g., subbandSize) may be used to indicate one of these candidate sizes.

[0085] Referring to another method for determining the measurement subband (MSB) size, the UL subband bandwidth is subtracted from the BWP bandwidth to obtain size A (i.e., including remainder 1 and remainder 2), and the candidate MSB size is determined according to size A according to a predefined rule. The predefined rule may include Table 1 or a newly defined configurable MSB size table. More specifically, according to Table 1, the size A of 48 (i.e., 96-48) PRBs belongs to the range of {24 to 72} PRBs, so the candidate sizes of the MSB are 4 and 8. The RRC parameter (e.g., subbandSize) may be used to indicate one of these candidate sizes.

[0086] Referring to another method for determining the size of the measurement subband (MSB), in Figure 8 , after the UL subband is subtracted from the BWP, there are two remainders (i.e., remainder 1 and remainder 2). Then, the candidate size of the MSB can be determined according to one of the sizes of the remainders. For example, the size of the smallest remainder can be used to determine the candidate size of the MSB: the size of remainder 1 (i.e., 12 PRBs) is used to determine the candidate size of the MSB according to a predefined rule. The predefined rule may include Table 1 obtained by adding a new row corresponding to a size range of less than 24 PRBs, or a newly defined configurable MSB size table. Alternatively, the size of the largest remainder (i.e., remainder 2, 36 PRBs) can be used to determine the candidate size of the MSB according to the predefined rule. The predefined rule may include Table 1 or a newly defined configurable MSB size table. Alternatively, in some other embodiments, the average of multiple remainder sizes (i.e., (12+36) / 2=24 PRBs) is used to determine the candidate size of the MSB according to the predefined rule. The predefined rule may include Table 1 or a newly defined configurable MSB size table.

[0087] In some implementations, a new configurable MSB size table may be defined; and the new table includes a relationship between bandwidths less than 24 PRBs and candidate MSB sizes.

[0088] This embodiment proposes a method for configuring a measurement subband for interference measurement and reporting. The method can effectively configure subband-based CLI measurement and reporting. Therefore, more accurate measurement results can be obtained for subsequent interference coordination.

[0089] Example 2

[0090] This disclosure describes non-limiting embodiments of measurement subband configurations for interference measurement and reporting.

[0091] In some embodiments, the MSB division may be limited to the remaining part (RP). Thus, the size of the first MSB and the last MSB is also related to the position of the remaining part within the carrier. More specifically, the first MSB

[0092]

[0093] Depend on Given. It is RP i The common resource block relative to the start of common resource block 0. It is RP i size. It is the size of the MSB determined according to Table 1 and the configuration of the RRC parameters (eg, subbandSize).

[0094] In some embodiments, the MSB partition can be restricted to the remaining portion (RP) and the boundary can be used as a reference point. Fig.9A In the non-limiting example shown, for an RP in the frequency domain that is lower than the UL subband (920) configured in the BWP (910), namely, RP1 (931), the size of the first MSB (ie, MSB 0) in RP1 is determined to be And the size of the remaining MSB in RP1 (e.g., MSB1) is equal to For another RP higher than the UL subband in the frequency domain, ie, RP2 (932), the size of the last MSB (ie, MSB4) in RP2 is determined as And the size of the remaining MSBs in RP2 (e.g., MSB2 and MSB3) is equal to

[0095] In some embodiments, the MSB partition covers different remaining parts. In this case, the UL sub-band can affect the partitioning of the MSB according to one of the methods described below.

[0096] For one method, the PRBs of different residual parts can be aggregated and divided into MSBs. Then, the MSB can span the UL subband, that is, the MSB contains PRBs on both sides of the UL subband. More specifically, for the MSB adjacent to or overlapping the UL subband in the frequency domain, the MSB includes X PRBs adjacent to the lower boundary of the UL subband and Y PRBs adjacent to the upper boundary of the UL subband, where and or is the i-th UL subband (ULSB i ) relative to the common resource block where common resource block 0 starts. is the MSB configuration size.

[0097] For example Fig. 9B In the non-limiting example shown, a UL subband (920) is configured in a BWP (910), resulting in two residual parts (RPs): RP1 (931) and RP2 (932). The configured size of the MSB is 4 PRBs (e.g., via RRC parameters). The MSB (MSB2) overlaps the UL subband. The size of MSB2 is 4 PRBs, including 2 PRBs adjacent to the lower boundary of the UL subband (i.e., PRB 4 and PRB 5) and 2 PRBs adjacent to the upper boundary of the UL subband (i.e., PRB 14 and PRB 15).

[0098] For example Fig. 9C As another non-limiting example, the PRBs within different remainders may be numbered (renumbered) sequentially. That is, for PRBs located at a higher frequency than the UL subband, the PRBs x Can be renumbered as in, is the size of the UL subband. For example, PRB14 within the BWP is renumbered as PRB6', which is continuous with PRB5' adjacent to the low frequency boundary of the UL subband. Subsequently, in some embodiments, the MSB may be divided according to the existing rules and the new PRB number.

[0099] For another method, the BWP can be divided into multiple MSBs according to a predefined rule. More specifically, the first MSB

[0100]

[0101] Band size by Given. is a public resource block and BWP i Relative to the start of common resource block 0. It is BWP i size. It is the size of the subband determined according to Table 1 and the configuration of the RRC parameter (eg, subbandSize).

[0102] In some embodiments, one or more MSBs may overlap (completely or partially) with a UL subband. For an MSB that completely overlaps with a UL subband (i.e., an MSB included in a UL subband), the UE may not perform interference measurement or feedback on the MSB. For an MSB that partially overlaps with a UL subband, the UE may measure only the portion of the MSB that does not overlap with the UL subband.

[0103] For example Fig.9D In the non-limiting example shown, MSB 2 completely overlaps the UL subband, that is, MSB 2 is included in the UL subband, so that the UE may not perform interference measurement or feedback on the MSB (i.e., MSB 2). MSB1 partially overlaps the UL subband, so the UE may only measure the portion of the MSB that does not overlap the UL subband (i.e., PRB 4 and PRB 5), and not measure the portion of the MSB that overlaps the UL subband (i.e., PRB 6 and PRB 7). Similarly, for MSB 3, the UE may only measure PRB 14 and PRB 15.

[0104] For another method, for an MSB adjacent to a UL subband in the frequency domain, the size of the MSB is related to at least one of: the configured size of the MSB, the index of the ending PRB of the UL subband, and / or the index of the starting PRB of the UL subband. More specifically, the size of the first MSB on the upper side of the UL subband is in, is the MSB configuration size, and is the index of the ending PRB of the UL subband.

[0105] if Then the size of the last MSB on the lower side of the UL subband is And if Then the size of the last MSB on the lower side of the UL subband is in, is the MSB configuration size, and is the index of the starting PRB of the UL subband.

[0106] For example Fig.9E In the non-limiting example shown, only PRB 4 and PRB 5 are included in MSB 1, and only PRB 14 and PRB 15 are included in MSB 2.

[0107] Example 3

[0108] This disclosure describes non-limiting embodiments of measurement subband configurations for interference measurement and reporting. In some implementations, when a portion of measurement resources configured for interference measurement is located in time domain resources that do not include a UL subband, the UE may not measure the resources.

[0109] For example Fig.10 In the non-limiting example shown, the UL subband (1050) is configured in time slot 2, time slot 3, time slot 4 (1012, 1013, and 1014). The UE may only measure the measurement resources located in time slot 2, time slot 3, and time slot 4. The UE may not measure the measurement resources located outside the time domain resources containing the UL subband (e.g., time slot 1 (1011) or time slot 5 (1015)).

[0110] This embodiment proposes a method for configuring a measurement subband for interference measurement and reporting. The method can effectively configure subband-based CLI measurement and reporting. Therefore, more accurate measurement results can be obtained for subsequent interference coordination.

[0111] Example 4

[0112] This disclosure describes non-limiting embodiments of measurement subband configurations for interference measurement and reporting.In some implementations, one or more MSBs may be configured to be non-uniform sizes.

[0113] For a method, the reference size of the MSB can be configured And the size of the MSB is based on As a non-limiting example, a scaling factor α is also configured, and the size of the first MSB adjacent to the UL subband is equal to the product of the scaling factor and the reference MSB size (such as the size of the second MSB). The size of the i-th MSB can be one of the following: or In the present disclosure, the “product” of A and B may refer to a result calculated as A multiplied by B.

[0114] against Fig.11 As another non-limiting example shown in , when α=2, the i-th MSB is: Then, the size of the first MSB (MSB1, 1101) adjacent to the UL subband (1150) is The size of the second MSB (MSB2, 1102) is And the size of the third MSB (MSB3, 1103) is

[0115] For another non-limiting example, when α=1, then the i-th MSB is: Then, the size of the first MSB is The size of the second MSB is And the size of the third MSB is

[0116] For another non-limiting example, without a scaling factor, the expression for determining the size of the i-th MSB may be defined as or other expressions.

[0117] In some embodiments, when the UL subband is configured in the middle of the BWP, that is, there are two remaining parts, the two remaining parts can share and the same configuration as α. Alternatively, At least one of and α can be independently configured. For example, the two remaining parts share the same α, but the two Configure each for the two remaining parts.

[0118] For Fig.12 Another method shown is to configure the reference MSB size and measurement results offset CLI offset(e.g., 3 dB), where for the MSB (MSB1, 1201) adjacent to the UL subband (1250), the size of MSB1 is equal to The UE can measure MSB1 and obtain the measurement result CLI initial CLI stands for cross link interference. More specifically, the measurement result is used to reflect the interference strength, for example, the power value on a specific resource. Correspondingly, the measurement can be a received signal strength indicator (RSSI) measurement on a specific measurement time-frequency resource.

[0119] The i-th MSB and the measurement result CLI initial -(i-1)×CLI offset Therefore, the size of the MSBs other than the first MSB (MSB1) is determined by measurement. Finally, the UE feeds back the CLI initial and multiple frequency information for identifying the size of other MSBs (ie, Fig.12 f3, f4, etc. in the example above).

[0120] Optionally, in some implementations, the UE may be configured with a feedback amount or a CLI threshold. Only the MSB of the measurement result above the CLI threshold needs to be fed back. Alternatively, only the MSB of the measurement result below the CLI threshold needs to be fed back.

[0121] For example Fig.12 For the non-limiting example shown, it is assumed that the size of the remainder is 48 PRBs, and Configured as 4 PRBs, CLI offset The method may include some or all of the following steps.

[0122] For step 1, the size of MSB1(1201) is The frequency boundaries of MSB1 are f1 and f2. The UE measures MSB1 and obtains the measurement result CLI initial ;

[0123] For step 2, to determine the size of MSB2 (1202), measure The granularity continues and starts from frequency f2. If the measurement result obtained is greater than CLI initial -CLI offset , you can pass Another granularity of , that is, the frequency domain range is extended to to continue measuring. If the measurement result is lower than CLI initial -CLI offset , then determine the current measurement range is the size of MSB2. Otherwise, the measurement range will be further increased Until the measurement result is less than CLI initial -CLI offset , and the measurement range is taken as the size of MSB2. Then, the frequency boundary of MSB2 can be obtained / determined as {f2, f3}.

[0124] For step 3, similar to step 2, in order to determine the size of MSB3 (1203), measure The granularity continues and starts from frequency point f3. Finally, the frequency boundary {f3, f4} of MSB3 can be obtained / determined. Within this frequency range, the measurement result can meet the requirement of less than CLI initial -2×CLI offset requirements.

[0125] In some embodiments, in step 2 and / or step 3 above, the frequency increase may be a linear increase, for example, 1, 2, 3, 4, ... times of; or alternatively, the frequency increase may be an exponential increase, for example, 1, 2, 4, 8, ... times of.

[0126] In some embodiments, the measurement results in a frequency range may refer to average results for the frequency range.

[0127] In some implementations, when the UE is configured with a feedback amount of 3, the measurement results of the first three MSBs (ie, MSB1, MSB2, and MSB3) may be fed back so that the UE can feed back the CLI initial , f3 and f4.

[0128] In some implementations, the CLI may be determined based on measurements of the UE. offset For example, configure the size of both the first MSB and the second MSB, for example, the size of MSB1 is equal to And the size of MSB2 is also equal to Then, the UE can measure MSB1 and MSB2 respectively. Based on the measurement of MSB1, the CLI can be obtained. MSB,1 Based on the measurement of MSB2, CLI can be obtained MSB,2 Then, the CLI offset You can use the CLI MSB,1 -CLI MSB,2 Then, similar to the above step 2, the size of the subsequent MSB can be obtained / determined. The UE feedback CLI MSB,1 , CLI MSB,2 and a plurality of frequency information (eg, f4, etc.) for identifying the size of other MSBs.

[0129] In some embodiments, when the remaining portion has 48 PRBs and When the measurement granularity is 48 / 4=12 potential frequency points, there are 48 / 4=12 potential frequency points. Since f3 and f4 are potential frequency points, 4 bits are sufficient to indicate f3 or f4. More specifically, as a non-limiting example, f1 can be mapped to 0000, f2 can be mapped to 0001, f3 can be mapped to 0011, and / or f4 can be mapped to 0111.

[0130] In some embodiments, when the UL subband is configured in the middle of the BWP, that is, there are two remaining parts, the two remaining parts can share and CLI offset Alternatively, and CLI offset At least one of the two remaining parts may be independently configured. For example, the two remaining parts may share the same CLI offset , but two Configure each for the two remaining parts.

[0131] This embodiment proposes a method for configuring a measurement subband for interference measurement and reporting. The method can effectively configure subband-based CLI measurement and reporting. Therefore, more accurate measurement results can be obtained for subsequent interference coordination.

[0132] Example 5

[0133] This disclosure describes non-limiting embodiments of measurement subband configurations for interference measurement and reporting. In some implementations, to save feedback overhead, a CLI threshold may be configured and only the MSBs of measurements above or below the threshold may be fed back.

[0134] Some embodiments may have problems / issues, for example, when the amount of MSBs of the measurement result greater than the threshold is uncertain, the amount of bits fed back is also uncertain. To address this issue / issue, the feedback information may be divided into two parts, namely, part 1 feedback information and part 2 feedback information. Part 1 feedback information has a fixed size and is used to indicate the size of part 2 feedback information.

[0135] In some embodiments, the part 1 feedback information and the part 2 feedback information may be encoded independently. Specifically, the part 1 feedback information indicates which MSBs are to be fed back, and the part 2 feedback information is the measurement result of each MSB to be fed back indicated by the part 1 feedback information.

[0136] The format (or content) of the feedback information in Part 1 may be configured according to one of the following methods.

[0137] For one method, part 1 feedback information may indicate whether each MSB should be fed back in the form of a bitmap. For example, when there are 8 MSBs, 8 bits may be used to indicate which of these MSBs should be fed back. The value '01001000' indicates that the second MSB and the fifth MSB should be fed back. Then, the measurement results of the second MSB and the fifth MSB should be included in the part 2 feedback information.

[0138] For another method, considering that the measurement result of the MSB decreases as the distance between the MSB and the UL subband increases, the boundary MSB index may be used to indicate which MSBs should be fed back.

[0139] For example Fig.13A In the non-limiting example shown, for a single-sided MSB (i.e., all MSBs are located on one side of the UL subband (1350)), there are a total of 6 MSBs, including MSB1 (1301), MSB2 (1302), MSB3 (1303), MSB4 (1304), MSB5 (1305) and MSB6 (1306). The part 1 feedback information has 3 bits, which are used to indicate the boundary MSB index (corresponding to any one of the 6 MSBs). When the measurement results of the first four MSBs are above the CLI threshold, the boundary MSB can be the last SBB that requires feedback (i.e., MSB 4), or the first SBB that does not require feedback (i.e., MSB5). Assuming that the boundary MSB is defined as the last MSB to be fed back, the index of the boundary MSB is 100, which corresponds to MSB4.

[0140] For example Fig. 13B As another non-limiting example shown, when the UL subband has MSBs on both sides (these MSBs include: MSB1 (1301), MSB2 (1302), and MSB3 (1303) on the lower frequency side of the UL subband; and MSB4 (1304), MSB5 (1305), MSB6 (1306), and MSB7 (1307) on the higher frequency side of the UL subband), the boundary MSB index can be indicated for the MSBs on each side respectively. In some embodiments, the CLI thresholds on different sides can be the same or different.

[0141] For example Fig. 13B In the example shown, 2 bits are required on each side to indicate the boundary MSB index, that is, 2 bits are 10 for the low frequency side of the UL subband, and 2 bits are 10 for the high frequency side.

[0142] For another method, in order to save feedback overhead, multiple MSBs can share the same measurement result. The channel state or interference state of these MSBs can be similar. Therefore, there are relatively similar measurement results. In this way, part 1 feedback information is used to indicate which MSBs share the same measurement result. Specifically, an indication field with the same bit amount as the MSB amount is introduced in the form of a bitmap, for example.

[0143] In some embodiments, each bit in the bitmap corresponds to an MSB in a specific order. For example, the lowest bit in the bitmap corresponds to the lowest frequency MSB, the second lowest bit in the bitmap corresponds to the second lowest frequency MSB, and so on. Adjacent MSBs that share the same measurement result indicate the same bit value, and when the value is switched, the value indicates that the subsequent MSB corresponds to another measurement result. For example, 8 MSBs are configured, and the 8-bit bitmap is indicated as 10001111, which indicates that the first MSB corresponds to the first measurement result, the second MSB, the third MSB, and the fourth MSB share one measurement result (the second measurement result), and the fifth MSB, the sixth MSB, the seventh MSB, and the eighth MSB share another measurement result (the third measurement result). Therefore, for eight MSBs, a total of only three measurement results indicated in the part 2 feedback information are required, thereby reducing the amount of bits that need to be transmitted and improving transmission efficiency.

[0144] This embodiment proposes a method for sub-band interference measurement reporting, which effectively reduces feedback overhead.

[0145] The present disclosure describes methods, apparatus, and computer-readable media for wireless communications. The present disclosure addresses the issue of gNB self-interference. The methods, devices, and computer-readable media described in the present disclosure can improve the performance of wireless communications by configuring interference measurements and reporting, thereby improving efficiency and overall performance. The methods, devices, and computer-readable media described in the present disclosure can improve the overall efficiency of wireless communication systems.

[0146] References to features, advantages, or similar language throughout the specification do not imply that all features and advantages that may be achieved with the present solution should be or are included in any single embodiment thereof. Rather, language referencing such features and advantages is understood to mean that a particular feature, advantage, or characteristic described in connection with an embodiment is included in at least one embodiment of the present solution. Thus, discussion of features and advantages and similar language throughout the specification may, but need not, refer to the same embodiment.

[0147] In addition, the features, advantages, and characteristics of the present solution may be combined in any suitable manner in one or more embodiments. Based on the description herein, one of ordinary skill in the relevant art will recognize that the present solution may be practiced without one or more of the specific features or advantages of a particular embodiment. In other cases, additional features and advantages may be recognized in certain embodiments that may not be present in all embodiments of the present solution.

Claims

1. A method for wireless communication, comprising: determining, by a user equipment (UE), a measurement subband (MSB) configuration for interference measurement and reporting, the MSB configuration comprising at least one of: size information and division information of a plurality of MSBs in a frequency range, the frequency range comprising an uplink (UL) subband; and Feedback information is transmitted by the UE to a base station, where the feedback information includes a measurement result for at least one MSB among the multiple MSBs.

2. A method for wireless communication, comprising: Sending, by a base station to a user equipment (UE), a measurement subband (MSB) configuration for interference measurement and reporting, the MSB configuration comprising at least one of: size information and division information of a plurality of MSBs in a frequency range, the frequency range comprising an uplink (UL) subband; and Feedback information is received by the base station from the UE, where the feedback information includes a measurement result for at least one MSB among the multiple MSBs.

3. The method according to any one of claims 1 to 2, wherein: The size information of the plurality of MSBs in the frequency range includes the MSB size; or The MSB size is determined according to a predefined table based on one of: Frequency range bandwidth, By subtracting the bandwidth of the UL sub-band from the frequency range, In case there is more than one remaining part after subtracting the UL subband from the frequency range: a bandwidth of a minimum remaining part among the more than one remaining parts, the bandwidth of the largest of the more than one remainders, or the average bandwidth of the more than one remaining parts, Each remaining part is obtained by subtracting the UL subband from the frequency range and occupies continuous spectrum resources.

4. The method according to claim 3, wherein: For the case where the predefined table includes more than one candidate MSB size, a radio resource control (RRC) parameter is used to indicate one of the more than one candidate MSB sizes as the MSB size.

5. The method according to claim 3, wherein: For a case where there is only one remaining part after subtracting the UL subband from the frequency range, the size information of the first MSB and the last MSB of the plurality of MSBs is related to a position of the remaining part in the frequency range or carrier.

6. The method according to claim 3, wherein: In case there is more than one remaining part after subtracting the UL subband from the frequency range, the more than one remaining parts are aggregated and divided into the plurality of MSBs.

7. The method according to claim 6, wherein: An MSB of the plurality of MSBs spans the UL sub-band; or An MSB among the plurality of MSBs includes one or more physical resource blocks (PRBs) at both sides of the UL subband.

8. The method according to any one of claims 1 to 2, wherein: The frequency range is divided into the plurality of MSBs; and At least one MSB among the plurality of MSBs overlaps with the UL subband.

9. The method according to claim 8, wherein: In the case where an MSB among the multiple MSBs completely overlaps with the UL subband, the UE does not perform interference measurement on the MSB; and In the case where an MSB among the multiple MSBs partially overlaps with the UL subband, the UE performs interference measurement only on a portion of the MSB that does not overlap with the UL subband.

10. The method according to any one of claims 1 to 2, wherein: For an MSB adjacent to the UL subband among the plurality of MSBs, the size information of the MSB is determined based on at least one of the following: The size of the frequency range; a starting physical resource block (PRB) of the frequency range; the starting PRB of the UL subband; or The ending PRB of the UL subband.

11. The method according to any one of claims 1 to 2, wherein: The UE only measures the multiple MSBs in the time domain resources having the UL subband.

12. The method according to claim 11, wherein: The UE does not measure the plurality of MSBs in another time domain resource without the UL subband.

13. The method according to any one of claims 1 to 2, wherein: The plurality of MSBs have non-uniform sizes; and The size information of the plurality of MSBs is determined based on a reference MSB size.

14. The method according to claim 13, wherein: The size information of the plurality of MSBs is also determined based on at least one of a scale factor and an MSB index.

15. The method according to claim 14, wherein: The first MSB adjacent to the UL subband is determined as the reference MSB size, and The subsequent MSBs relative to the first MSB are determined based on one of: The product of the reference MSB size and the scale factor, or the product of the reference MSB size and the MSB index, or The product of the reference MSB size, the scale factor and the MSB index.

16. The method of claim 14, wherein: For the case where the frequency range has two remaining parts, the two remaining parts share the reference MSB size and the scale factor, or the two remaining parts have different reference MSB sizes or different scale factors.

17. The method of claim 13, wherein: The size of the plurality of MSBs is also determined based on a measurement offset, wherein: A first MSB adjacent to the UL subband is determined as the reference MSB size and has an initial measurement result, and Subsequent MSBs relative to the first MSB are determined based on the reference MSB size, the initial measurement, and the measurement offset.

18. The method of claim 17, wherein: In the case where the frequency range has two remaining parts, the two remaining parts share the reference MSB size and the measurement result offset, or the two remaining parts have different reference MSB sizes or different measurement result offsets.

19. The method according to any one of claims 1 to 2, wherein: The feedback information includes a first part and a second part, wherein: The first portion has a fixed size; and The first portion indicates a size of the second portion.

20. The method of claim 19, wherein: The first portion includes a bitmap; Each bit of the bitmap indicates whether a corresponding MSB among the plurality of MSBs is fed back; and The fixed size of the first portion has the same value as the number of MSBs in the plurality of MSBs.

21. The method of claim 19, wherein: The first part includes a boundary MSB index indicating a range of an MSB among the plurality of MSBs to be fed back.

22. The method of claim 19, wherein: The first portion includes a bitmap; Each bit of the bitmap indicates whether the corresponding MSB shares the same measurement result with an adjacent MSB; and The fixed size of the first portion has the same value as the number of MSBs in the plurality of MSBs.

23. The method of claim 22, wherein: The lower bits in the bitmap correspond to lower frequency MSBs of the plurality of MSBs; For a case where a bit and a lower frequency bit adjacent to the bit are the same value, the corresponding MSB and the lower frequency MSB adjacent to the corresponding MSB share the same measurement result; and In case that a bit and a lower bit adjacent to the bit are different values, the corresponding MSB and a lower frequency MSB adjacent to the corresponding MSB have different measurement results.

24. A wireless communication device, comprising a processor and a memory, wherein: The processor is configured to read code from the memory and implement the method according to any one of claims 1 to 23.

25. A computer program product comprising a computer-readable program medium on which codes are stored, which, when executed by a processor, cause the processor to implement the method according to any one of claims 1 to 23.

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