An interference determination method and apparatus

Abstract

This application discloses an interference determination method and apparatus. The method includes: a network device receiving first channel quality information corresponding to a first bandwidth and second channel quality information corresponding to an aggregated bandwidth from a terminal device; determining the interference experienced by the terminal device when accessing the aggregated bandwidth based on the first and second channel quality information; and sending bandwidth configuration information to the terminal device based on the interference. The first channel quality information is sent by the terminal device when accessing the first bandwidth, and the second channel quality information is sent by the terminal device when accessing the aggregated bandwidth; the aggregated bandwidth is obtained by aggregating at least the first and second bandwidths, with a third bandwidth spectrum interleaved between the spectrum of the first and second bandwidths. By implementing this application embodiment, it is beneficial to avoid the terminal device operating under bandwidths with strong interference, thereby improving the performance of the terminal device.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an interference determination method and apparatus. Background Technology

[0002] To fully utilize discrete spectrum resources, a solution is proposed that aggregate multiple discrete spectrum segments into large-bandwidth cells. This solution, through discontinuous scheduling, allows users to enjoy a high-bandwidth experience.

[0003] Filters in terminal devices can filter out interference outside the continuous spectrum. However, for large bandwidths of aggregated discrete spectrum segments, current discrete spectrum schemes treat the aggregated bandwidth as a single carrier. Therefore, filters cannot filter out interference caused by other spectra between discrete spectrum segments. Furthermore, they cannot quantify this interference, which may cause the terminal device to operate under conditions of strong interference, significantly impacting its performance. Summary of the Invention

[0004] This application provides an interference determination method and apparatus. By determining the interference experienced by a terminal device when accessing aggregated bandwidth, and sending bandwidth configuration information to the terminal device based on the interference, it is beneficial to avoid the terminal device operating under bandwidth with strong interference, thereby improving the performance of the terminal device.

[0005] In a first aspect, embodiments of this application provide an interference determination method. The execution subject of this method can be a network device or a chip applied in the network device. The method includes: the network device receiving first channel quality information corresponding to a first bandwidth from a terminal device, the first channel quality information being sent by the terminal device when accessing the first bandwidth; the network device receiving second channel quality information corresponding to an aggregated bandwidth from the terminal device, the second channel quality information being sent by the terminal device when accessing the aggregated bandwidth; wherein the aggregated bandwidth is at least obtained by aggregating the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of a third bandwidth; the network device determining the interference experienced by the terminal device when accessing the aggregated bandwidth based on the first channel quality information and the second channel quality information; and sending bandwidth configuration information to the terminal device based on the interference.

[0006] In this technical solution, the interference experienced by the terminal device when accessing the aggregated bandwidth is determined by using first channel quality information and second channel quality information, thus quantifying the interference. This allows for adaptive adjustment of the terminal device's operation within a larger or smaller bandwidth based on the interference, ensuring the terminal device operates within a bandwidth with less interference and avoiding operation within a bandwidth with stronger interference, thereby improving the terminal device's performance.

[0007] In one implementation, if the interference value is greater than a preset interference value, the bandwidth configuration information is used to indicate that the operating bandwidth of the terminal device is the first bandwidth.

[0008] This technical solution allows the terminal device to operate under a first bandwidth with less interference, thereby improving the performance of the terminal device.

[0009] In one implementation, if the interference value is less than or equal to a preset interference value, the bandwidth configuration information is used to indicate that the working bandwidth of the terminal device is the aggregate bandwidth.

[0010] In this technical solution, operating under aggregated bandwidth when interference is minimal is advantageous for obtaining high-bandwidth services.

[0011] In one implementation, the network device determines the interference received by the terminal device when accessing the aggregated bandwidth based on the first channel quality information and the second channel quality information. Specifically, the ratio between the evaluation value of the second channel quality information and the evaluation value of the first channel quality information is determined as the interference value received by the terminal device when accessing the aggregated bandwidth.

[0012] In one implementation, the first bandwidth and the second bandwidth both correspond to the first operator, and the third bandwidth corresponds to the second operator.

[0013] In one implementation, the method may further include: a network device receiving capability information of the terminal device from a terminal device, the capability information indicating that the terminal device supports access aggregation bandwidth; and determining, based on the capability information, that the terminal device supports access aggregation bandwidth.

[0014] In one implementation, the method may further include: a network device sending a channel state information reference signal (CSI-RS) for a cell corresponding to a first bandwidth, wherein the first channel quality information is determined by the terminal device based on the CSI-RS when accessing the cell.

[0015] In one implementation, the method may further include: the network device sending CSI-RS configuration information to the terminal device, the CSI-RS configuration information including CSI-RS configuration information corresponding to a first bandwidth and CSI-RS configuration information corresponding to a second bandwidth.

[0016] In one implementation, the channel quality information includes one or more of the Received Signal Strength Indication (RSSI) or Channel Quality Indication (CQI).

[0017] Secondly, embodiments of this application provide another interference determination method. The executing entity of this method can be a terminal device or a chip applied within the terminal device. The method includes: when the terminal device accesses a first bandwidth, it sends first channel quality information corresponding to the first bandwidth to a network device; when it accesses an aggregated bandwidth, it sends second channel quality information corresponding to the aggregated bandwidth to the network device; wherein the aggregated bandwidth is at least obtained by aggregating the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of a third bandwidth; the terminal device receives bandwidth configuration information from the network device, the bandwidth configuration information being sent by the network device based on the interference experienced by the terminal device when accessing the aggregated bandwidth; the interference is determined based on the first channel quality information and the second channel quality information.

[0018] In this technical solution, by reporting the first channel quality information and the second channel quality information, the network device can determine the interference experienced by the terminal device when accessing the aggregated bandwidth. This method quantifies the interference and allows for adaptive adjustment of the terminal device's operation within a larger or smaller bandwidth based on the interference. This helps the terminal device operate under less interference, avoiding operation under stronger interference, thereby improving the terminal device's performance.

[0019] In one implementation, if the interference value is greater than a preset interference value, the bandwidth configuration information is used to indicate that the operating bandwidth of the terminal device is the first bandwidth.

[0020] This technical solution allows the terminal device to operate under a first bandwidth with less interference, thereby improving the performance of the terminal device.

[0021] In one implementation, if the interference value is less than or equal to a preset interference value, the bandwidth configuration information is used to indicate that the working bandwidth of the terminal device is the aggregate bandwidth.

[0022] In this technical solution, operating under aggregated bandwidth when interference is minimal is advantageous for obtaining high-bandwidth services.

[0023] In one implementation, the interference value is the ratio between the evaluation value of the second channel quality information and the evaluation value of the first channel quality information.

[0024] In one implementation, the first bandwidth and the second bandwidth both correspond to the first operator, and the third bandwidth corresponds to the second operator.

[0025] In one implementation, the method may further include: the terminal device sending capability information of the terminal device to the network device, the capability information being used to indicate that the terminal device supports access aggregation bandwidth.

[0026] In one implementation, the method may further include: the terminal device receiving a channel state information reference signal (CSI-RS) for a cell corresponding to a first bandwidth from a network device; and determining first channel quality information based on the CSI-RS.

[0027] In one implementation, the method may further include: the terminal device receiving CSI-RS configuration information from the network device, the CSI-RS configuration information including CSI-RS configuration information corresponding to a first bandwidth and CSI-RS configuration information corresponding to a second bandwidth.

[0028] In one implementation, the channel quality information includes one or more of the Received Signal Strength Indication (RSSI) or Channel Quality Indication (CQI).

[0029] Thirdly, embodiments of this application provide a communication device that implements some or all of the functions of the network device described in the example of the method described in the first aspect above. For example, the communication device may have the functions of some or all of the embodiments in this application, or it may have the functions of any one of the embodiments in this application implemented individually. The functions may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0030] In one implementation, the communication device may include a processing unit and a communication unit. The processing unit is configured to support the communication device in performing the functions of the network device described above. The communication unit supports communication between the communication device and other devices. The communication device may also include a storage unit coupled to the processing unit and the transmitting unit, which stores necessary computer programs and data for the communication device.

[0031] In one implementation, the communication device includes: a communication unit configured to receive first channel quality information corresponding to a first bandwidth from a terminal device, the first channel quality information being sent by the terminal device when accessing the first bandwidth; the communication unit further configured to receive second channel quality information corresponding to an aggregated bandwidth from the terminal device, the second channel quality information being sent by the terminal device when accessing the aggregated bandwidth; wherein the aggregated bandwidth is at least obtained by aggregating the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of a third bandwidth; a processing unit configured to determine the interference experienced by the terminal device when accessing the aggregated bandwidth based on the first channel quality information and the second channel quality information; and the communication unit further configured to send bandwidth configuration information to the terminal device based on the interference.

[0032] As an example, the aforementioned processing unit can be a processor, the communication unit can be a transceiver, and the storage unit can be a memory.

[0033] In one implementation, the communication device includes: a transceiver for receiving first channel quality information corresponding to a first bandwidth from a terminal device, the first channel quality information being sent by the terminal device when accessing the first bandwidth; the transceiver for further receiving second channel quality information corresponding to an aggregated bandwidth from the terminal device, the second channel quality information being sent by the terminal device when accessing the aggregated bandwidth; wherein the aggregated bandwidth is at least obtained by aggregating the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of a third bandwidth; a processor for determining the interference experienced by the terminal device when accessing the aggregated bandwidth based on the first channel quality information and the second channel quality information; and the transceiver for further sending bandwidth configuration information to the terminal device based on the interference.

[0034] Fourthly, embodiments of this application provide a communication device that implements some or all of the functions of the terminal device described in the method example of the second aspect above. For example, the communication device may have the functions of some or all of the embodiments in this application, or it may have the functions of any one embodiment in this application implemented individually. The functions may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0035] In one implementation, the communication device may include a processing unit and a communication unit. The processing unit is configured to support the communication device in performing the functions of the terminal device described above. The communication unit supports communication between the communication device and other devices. The communication device may also include a storage unit coupled to the processing unit and the transmitting unit, which stores necessary computer programs and data for the communication device.

[0036] In one implementation, the communication device includes: a processing unit configured to, when accessing a first bandwidth, invoke a communication unit to send first channel quality information corresponding to the first bandwidth to a network device; the processing unit is further configured to, when accessing an aggregated bandwidth, invoke a communication unit to send second channel quality information corresponding to the aggregated bandwidth to the network device; wherein the aggregated bandwidth is at least obtained by aggregating the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of a third bandwidth; the processing unit is further configured to, invoke a communication unit to receive bandwidth configuration information from the network device, the bandwidth configuration information being sent by the network device based on interference experienced by the communication device when accessing the aggregated bandwidth; the interference is determined based on the first channel quality information and the second channel quality information.

[0037] As an example, the aforementioned processing unit can be a processor, the communication unit can be a transceiver, and the storage unit can be a memory.

[0038] In one implementation, the communication device includes: a processor configured to, upon accessing a first bandwidth, invoke a transceiver to send first channel quality information corresponding to the first bandwidth to a network device; the processor is further configured to, upon accessing an aggregated bandwidth, invoke a transceiver to send second channel quality information corresponding to the aggregated bandwidth to the network device; wherein the aggregated bandwidth is at least obtained by aggregating the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of a third bandwidth; the processor is further configured to, invoke a transceiver to receive bandwidth configuration information from the network device, the bandwidth configuration information being sent by the network device based on interference experienced by the communication device upon accessing the aggregated bandwidth; the interference is determined based on the first channel quality information and the second channel quality information.

[0039] Fifthly, embodiments of this application also provide a communication system, which may include the network device as described in the first aspect and the terminal device as described in the second aspect, or may include the communication device as described in the third aspect and the communication device as described in the fourth aspect.

[0040] In a sixth aspect, embodiments of the present invention provide a computer-readable storage medium storing a computer program, the computer program including program instructions, which, when executed by a communication device, cause the communication device to perform the method described in the first aspect.

[0041] In a seventh aspect, embodiments of the present invention provide a computer-readable storage medium storing a computer program, the computer program including program instructions, which, when executed by a communication device, cause the communication device to perform the method described in the second aspect.

[0042] Eighthly, this application also provides a computer program product including a computer program or instructions, which, when run on a computer, causes the computer to perform the method described in the first aspect above.

[0043] Ninthly, this application also provides a computer program product including a computer program or instructions, which, when run on a computer, causes the computer to perform the method described in the second aspect above.

[0044] In a tenth aspect, this application provides a chip system including at least one processor and an interface for implementing the functions involved in the first aspect, such as determining or processing at least one of the data and information involved in the above-described methods. In one possible design, the chip system further includes a memory for storing computer programs and data necessary for the transmitting end. This chip system may be composed of chips or may include chips and other discrete devices.

[0045] Eleventhly, this application provides a chip system including at least one processor and an interface for implementing the functions involved in the second aspect, such as determining or processing at least one of the data and information involved in the above methods. In one possible design, the chip system further includes a memory for storing computer programs and data necessary for the receiving end. This chip system may be composed of chips or may include chips and other discrete devices. Attached Figure Description

[0046] Figure 1a This is a schematic diagram of spectrum division;

[0047] Figure 1b This is a schematic diagram illustrating four possible directions of interference in a high-bandwidth practical application.

[0048] Figure 1c This is a schematic diagram of a two-stage filter.

[0049] Figure 1d This is a schematic diagram of the architecture of a communication system disclosed in an embodiment of this application;

[0050] Figure 2 This is a flowchart illustrating an interference determination method disclosed in an embodiment of this application;

[0051] Figure 3 This is a flowchart illustrating another interference determination method disclosed in an embodiment of this application;

[0052] Figure 4 This is a schematic diagram of the structure of a communication device disclosed in an embodiment of this application;

[0053] Figure 5 This is a schematic diagram of another communication device disclosed in an embodiment of this application;

[0054] Figure 6 This is a schematic diagram of the structure of a chip disclosed in an embodiment of this application. Detailed Implementation

[0055] To better understand the technical solutions provided in the embodiments of this application, the technical terms involved in the embodiments of this application will be introduced first.

[0056] (1) Aggregated bandwidth

[0057] Aggregated bandwidth is a bandwidth obtained by aggregating multiple spectrum segments, or it can be understood as a large bandwidth obtained by aggregating multiple small bandwidth segments. The organization responsible for spectrum allocation divides the available spectrum into segments for allocation to different operators. A small bandwidth can be one segment of spectrum obtained from the spectrum allocation process, while a large bandwidth can be a segment of spectrum aggregated from multiple small bandwidths. It should be noted that "small" and "large" are used for ease of understanding in this application; they do not refer to the width of the spectrum. In the embodiments of this application, large bandwidth and aggregated bandwidth can have the same meaning. Small bandwidth can also be referred to as bandwidth part (BWP).

[0058] For example, see Figure 1a The diagram shows the spectrum allocation. Spectrum 1710.5–1785 is used for uplink transmission, and spectrum 1805–1880 is used for downlink transmission. Figure 1a It describes which spectrum in spectrum 1710.5–1785 and 1805–1880 was allocated to operator a and which was allocated to operator b. Figure 1a In this context, the spectrum in each column can represent a small bandwidth spectrum. For example... Figure 1a As shown, two small bandwidth segments allocated to operator a can be aggregated into one large bandwidth segment with a spectrum width of 10 MHz. Although the spectrum of the two small bandwidth segments aggregated into the large bandwidth is not contiguous, when scheduling this large bandwidth, a non-contiguous scheduling method can be used to fully utilize the 10 MHz discrete spectrum to provide a large bandwidth experience.

[0059] However, in practical applications with high bandwidth, there may be interference in four directions, see... Figure 1b As shown. Figure 1b This includes terminal device 1 (101), terminal device 2 (103), network device 1 (102), and network device 2 (104). Interference in directions A, B, and D can be resolved, but interference in direction C cannot be resolved at present. Strong interference in direction C may cause terminal device 101 to become blocked, meaning terminal device 101 will be unable to acquire a useful signal. The reason why terminal device 101 cannot filter out this interference is explained below.

[0060] It should be noted that, Figure 1aThe example illustrates two discontinuous small-bandwidth spectrum segments. In other implementations, multiple small-bandwidth segments with continuous spectrum can be aggregated into a large bandwidth. For instance, spectrum 1805–1812.5 allocated to operator A and spectrum 1812.5–1827.5 allocated to operator B can be aggregated into a single large bandwidth. The 1812.5 in spectrum 1805–1812.5 is the same as the 1812.5 in spectrum 1812.5–1827.5, indicating that these two spectrum segments are continuous.

[0061] (2) Two-stage filter in terminal equipment

[0062] The terminal equipment includes two levels of filters: a radio frequency (RF) filter and an intermediate frequency (IF) filter. The RF filter is a bandpass filter that filters out signals outside the target bandwidth, allowing useful signals within the target band, along with other carrier frequency signals or interference, to be received. The IF filter automatically adjusts its width based on the carrier bandwidth of the useful signal, filtering out interference outside the carrier bandwidth. For example... Figure 1c Taking the schematic diagram of the two-stage filter shown below as an example, Figure 1c The left side of the image shows the filtering process of a two-stage filter for a single carrier. Figure 1c The right side of the diagram shows the filtering process of a two-stage filter for discrete multi-carrier signals. The bars represent the useful signal, and the triangles represent interference. Figure 1c As can be seen from the left side of the image, for a single carrier, interference can be filtered out after passing through a two-stage filter.

[0063] Current discrete spectrum schemes aggregate large bandwidths of multiple discrete spectrum segments as a single carrier. RF filters can filter out interference outside the band between the lowest and highest frequencies corresponding to this large bandwidth. For example, using... Figure 1a Taking a large bandwidth as an example, an RF filter can filter out interference outside the band (1805–1830). An IF filter, however, adaptively adjusts its width based on the single carrier width, thus receiving signals from other spectrum ranges (1812.5–1827.5), which are considered interference. Therefore, a two-stage filter in the terminal device cannot filter out this interference from other spectrum ranges. For example, from… Figure 1c As shown on the right side, for discrete multicarrier, since the discrete multicarrier is treated as a single carrier, interference still remains after passing through a two-stage filter. It should be noted that a single carrier can be understood as a carrier with a small bandwidth, multicarrier as multiple carriers with small bandwidths, and discrete multicarrier as multiple carriers with discontinuous frequencies of small bandwidths.

[0064] After filtering, power adjustment can be performed. During power adjustment, the total signal power (i.e., the total power of the useful signal plus noise) is amplified to the dynamic range of the analog-to-digital converter (ADC). However, when the interference intensity is significantly higher than the useful signal, the actual amplification factor of the useful signal is small, resulting in very low power for the amplified useful signal, or even its inability to be recognized as a useful signal, thus causing blocking of the terminal equipment. Furthermore, interference in direction C cannot currently be quantified, which may lead to the terminal equipment operating under conditions of strong interference, significantly impacting its performance.

[0065] In view of the above problems, the embodiments of this application determine the interference experienced by the terminal device when accessing the aggregated bandwidth, and send bandwidth configuration information to the terminal device according to the interference, which helps to avoid the terminal device operating under a bandwidth with strong interference, thereby improving the performance of the terminal device.

[0066] To better understand the interference determination method disclosed in the embodiments of this application, the communication system to which the embodiments of this application are applicable is described below.

[0067] Please see Figure 1d , Figure 1d This is a schematic diagram of the architecture of a communication system disclosed in an embodiment of this application. Figure 1d As shown, the communication system includes: terminal device 101 and network device 102.

[0068] The terminal device 101 can be used to send first channel quality information corresponding to the first bandwidth to the network device 102 when accessing the first bandwidth; and to send second channel quality information corresponding to the aggregated bandwidth to the network device 102 when accessing the aggregated bandwidth. The aggregated bandwidth is at least obtained by aggregating the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of a third bandwidth.

[0069] Accordingly, network device 102 can be used to receive first channel quality information and second channel quality information from terminal device 101; determine the interference experienced by terminal device 101 when accessing aggregated bandwidth based on the first channel quality information and second channel quality information; and send bandwidth configuration information to terminal device 101 based on the interference. Accordingly, terminal device 101 can also be used to receive the bandwidth configuration information.

[0070] By using the first channel quality information and the second channel quality information, the interference experienced by terminal device 101 when accessing the aggregated bandwidth is determined. The interference can be quantified, and bandwidth configuration information can be sent to terminal device 101 based on this interference. Furthermore, terminal device 101 can determine its operating bandwidth based on this bandwidth configuration information. This method helps the terminal device operate under a less interfered operating bandwidth, thus avoiding operation under a more interfered bandwidth and improving the performance of the terminal device.

[0071] The terminal device 101 can be an entity on the user side used to receive or transmit signals. The terminal device can be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on water (such as on ships); and it can be deployed in the air (e.g., on airplanes, balloons, and artificial satellites). The terminal device includes handheld devices, vehicle-mounted devices, wearable devices, or computing devices with wireless communication capabilities. For example, the UE can be a mobile phone, tablet computer, or computer with wireless transceiver capabilities. The terminal device can also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a smart vehicle terminal device, a wireless terminal in industrial control, a wireless terminal in autonomous driving, a drone, a drone controller, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in a smart city, a wireless terminal in a smart home, and so on. The embodiments of this application do not limit the specific technology or device form used in the terminal device.

[0072] Network device 102 can be an entity on the network side used for transmitting or receiving signals. This network device can be an access network device, which can provide terminal devices with functions such as radio resource management, quality of service management, data encryption, and compression. The access network device can be a radio access network (RAN) device. The access network device can include a base station (BS), which can be a device deployed in a radio access network capable of wirelessly communicating with terminal devices. Base stations can take various forms, such as macro base stations, micro base stations, relay stations, access points, satellites, and drones. For example, the access network device can be a fifth-generation (5G) communication device. thBase stations in 5G (5G) systems or Long Term Evolution (LTE) systems, where base stations in 5G can also be called transmission reception points (TRPs) or next-generation node nodes (gNBs). This application does not limit the specific technologies or equipment forms used in the network devices.

[0073] The technologies described in the embodiments of this application can be used in various communication systems, such as fifth-generation communication (5G). th Generation (5G) systems, systems integrating multiple communication systems, or future evolutionary communication systems such as 6G communication systems. It should be noted that the network element names, message names, etc. mentioned in the embodiments of this application are for illustrative purposes only. When applied to different communication systems, the network element and message names may be different, and the embodiments of this application do not limit this.

[0074] It is understood that the communication system described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and does not constitute a limitation on the technical solutions provided in the embodiments of this application. Those skilled in the art will know that with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0075] The interference determination method and communication device provided in this application will be described in detail below with reference to the accompanying drawings.

[0076] Please see Figure 2 , Figure 2 This is a flowchart illustrating an interference determination method provided in an embodiment of this application. The method includes, but is not limited to, the following steps:

[0077] Step S201: When the terminal device accesses the first bandwidth, it sends the first channel quality information corresponding to the first bandwidth to the network device. Correspondingly, the network device receives the first channel quality information from the terminal device, which was sent by the terminal device when it accesses the first bandwidth.

[0078] Wherein, the first bandwidth is a small bandwidth. In one implementation, the terminal device can access the first bandwidth in random access, and upon accessing the first bandwidth, determine the first channel quality information corresponding to the first bandwidth, and then send the first channel quality information to the network device. In the embodiments of this application, the channel quality information (such as the first channel quality information, the second channel quality information) may include, but is not limited to, one or more of received signal strength indication (RSSI) or channel quality indication (CQI).

[0079] It should be noted that when a terminal device accesses a certain bandwidth, it can be understood as the terminal device accessing the cell corresponding to that bandwidth. A cell can correspond to one or more bandwidths, and these bandwidths can include both small bandwidths and aggregated bandwidths, with each type of small bandwidth and large bandwidth potentially being one or more. Optionally, this first bandwidth can be configured for the terminal device by the network device.

[0080] In one implementation, the terminal device can determine the first channel quality information corresponding to the first bandwidth by receiving the channel state information-reference signal (CSI-RS) of the cell corresponding to the first bandwidth from the network device; and measuring the first channel quality information based on the CSI-RS.

[0081] Step S202: When the terminal device accesses the aggregated bandwidth, it sends the second channel quality information corresponding to the aggregated bandwidth to the network device; wherein the aggregated bandwidth is obtained by aggregating at least the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of the third bandwidth. Correspondingly, the network device receives the second channel quality information from the terminal device, which is sent by the terminal device when accessing the aggregated bandwidth.

[0082] After a terminal device accesses the first bandwidth (i.e., the small bandwidth), it can switch from the first bandwidth to the aggregated bandwidth. That is, the terminal device's operating bandwidth changes from the first bandwidth to the aggregated bandwidth.

[0083] The aggregated bandwidth is obtained by aggregating at least a first bandwidth and a second bandwidth, with a third bandwidth spectrum interspersed between the spectrum of the first bandwidth and the spectrum of the second bandwidth. The first bandwidth, second bandwidth, and third bandwidth can all be small bandwidths. Alternatively, the first and second bandwidths can be small bandwidths, and the number of third bandwidths can be one or more. The interspersed third bandwidth spectrum between the spectrum of the first bandwidth and the spectrum of the second bandwidth indicates that the spectra of the first and second bandwidths are discontinuous. In this case, when the terminal device operates under the aggregated bandwidth, the signal of the third bandwidth will interfere with the terminal device. It should be noted that the signal of the third bandwidth can refer to the signal carried on the carrier corresponding to the spectrum of the third bandwidth. Different carriers can correspond to different spectra. Optionally, the small bandwidth and aggregated bandwidth in the embodiments of this application can be frequency division duplex (FDD) bandwidth, time division duplex (TDD) bandwidth, standard bandwidth, or non-standard bandwidth; the embodiments of this application do not limit this. Standard bandwidth can refer to the bandwidth defined by a standard protocol, and non-standard bandwidth can refer to bandwidth other than that defined by a standard protocol.

[0084] In one implementation, both the first and second bandwidths can correspond to a first operator, and the third bandwidth corresponds to a second operator. In other words, there is a bandwidth from a different operator between the first and second bandwidths. In this case, the interference experienced by the terminal device when accessing the aggregated bandwidth is interference from a different operator. Here, "the first bandwidth corresponds to the first operator" means that the first bandwidth is allocated to the first operator, and the first operator has the right to schedule and allocate the first bandwidth. In another implementation, the first and second bandwidths can correspond to different operators. For example, the first bandwidth corresponds to operator a, the second bandwidth corresponds to operator b, and the third bandwidth corresponds to operator c. Operators a and b can be operators sharing bandwidth resources.

[0085] Optionally, the cell corresponding to the first bandwidth can be the same cell as the cell corresponding to the aggregated bandwidth. The aforementioned network device can be the network device corresponding to that cell (such as an access network device).

[0086] Optionally, after accessing the first bandwidth, the terminal device can receive first bandwidth configuration information from the network device, which may indicate aggregated bandwidth. Then, the terminal device can determine its operating bandwidth as the aggregated bandwidth based on the first bandwidth configuration information. If the terminal device's operating bandwidth is the first bandwidth upon receiving the first bandwidth configuration information, the terminal device can switch from the first bandwidth to the aggregated bandwidth. If the terminal device's operating bandwidth is the aggregated bandwidth upon receiving the first bandwidth configuration information, the terminal device can continue operating under the aggregated bandwidth. Optionally, the terminal device can also independently access the aggregated bandwidth after accessing the first bandwidth.

[0087] In one implementation, the terminal device can send its capability information to the network device, which can be used to indicate whether the terminal device supports accessing aggregated bandwidth. Correspondingly, the network device receives the capability information from the terminal device and determines whether the terminal device supports accessing aggregated bandwidth based on this information. Only if the network device determines that the terminal device supports accessing aggregated bandwidth will it send the aforementioned first bandwidth configuration information to the terminal device. Alternatively, the terminal device may attempt to access aggregated bandwidth only if it already supports it.

[0088] In one implementation, the terminal device can determine the second channel quality information corresponding to the aggregated bandwidth by receiving the CSI-RS of the cell corresponding to the aggregated bandwidth from the network device, and measuring the second channel quality information based on the CSI-RS. Optionally, the network device can send the aforementioned first bandwidth configuration information to the terminal device if it determines that the terminal device supports accessing the aggregated bandwidth.

[0089] Step S203: The network device determines the interference experienced by the terminal device when accessing the aggregated bandwidth based on the first channel quality information and the second channel quality information.

[0090] After receiving the first channel quality information and the second channel quality information, the network device can determine the interference experienced by the terminal device when accessing the aggregated bandwidth based on the first channel quality information and the second channel quality information.

[0091] In one implementation, the network device can determine the interference value experienced by the terminal device when accessing the aggregated bandwidth based on the ratio between the evaluation value of the second channel quality information and the evaluation value of the first channel quality information. Specifically, the network device can determine the interference value experienced by the terminal device when accessing the aggregated bandwidth as the ratio between the evaluation value of the second channel quality information and the evaluation value of the first channel quality information.

[0092] It should be noted that channel quality information (such as first channel quality information and second channel quality information) includes interference signal power. First channel quality information corresponds to the small bandwidth (first bandwidth), while second channel quality information corresponds to the large bandwidth (aggregated bandwidth). As mentioned earlier, the two-stage filter in the terminal device can filter out interference operating at the small bandwidth, but cannot filter out interference from the third bandwidth operating at the aggregated bandwidth. Therefore, the ratio between the evaluation value of the second channel quality information and the evaluation value of the first channel quality information can be used to quantify the interference experienced by the terminal device when accessing the aggregated bandwidth. It is worth noting that the reference signal receiving power (RSRP) does not include interference signal power; therefore, RSRP cannot be used to quantify the interference experienced by the terminal device when accessing the aggregated bandwidth.

[0093] Channel quality information (such as first channel quality information, second channel quality information) may include, but is not limited to, one or more of RSSI or CQI. Among them, RSSI includes both useful signal power and interference signal power. Therefore, using RSSI to quantify the interference experienced by the terminal device when accessing the aggregated bandwidth is beneficial to improving the accuracy of interference quantification.

[0094] Step S204: The network device sends bandwidth configuration information to the terminal device based on the interference. Correspondingly, the terminal device receives the bandwidth configuration information from the network device.

[0095] After determining the interference experienced by a terminal device when accessing aggregated bandwidth, the network device can send bandwidth configuration information (such as second bandwidth configuration information) to the terminal device based on the interference. The terminal device can then adjust its operating bandwidth or maintain its operating bandwidth unchanged based on this second bandwidth configuration information.

[0096] In one implementation, after the terminal device operates under aggregated bandwidth and sends second channel quality information to the network device, it can periodically fall back to the first bandwidth (i.e., periodically access the first bandwidth), measure the channel quality information corresponding to the first bandwidth, and send the measured channel quality information to the network device. Alternatively, the terminal device can periodically switch to aggregated bandwidth, measure the channel quality information corresponding to that aggregated bandwidth, and send the measured channel quality information to the network device. Therefore, when the terminal device receives the second bandwidth configuration information, its operating bandwidth may be the first bandwidth, the aggregated bandwidth, or a bandwidth other than either the first bandwidth or the aggregated bandwidth.

[0097] The second bandwidth configuration information can indicate either the first bandwidth or the aggregated bandwidth. When the second bandwidth configuration information indicates a certain bandwidth, it means that the network device configures the terminal device's operating bandwidth to that bandwidth. In this embodiment, the second bandwidth configuration information indicating the first bandwidth has the same meaning as the second bandwidth configuration information indicating that the terminal device's operating bandwidth is the first bandwidth. Similarly, the second bandwidth configuration information indicating the aggregated bandwidth has the same meaning as the second bandwidth configuration information indicating that the terminal device's operating bandwidth is the aggregated bandwidth. In one implementation, if the interference value experienced by the terminal device when accessing the aggregated bandwidth is greater than a preset interference value, the aforementioned second bandwidth configuration information can be used to indicate that the terminal device's operating bandwidth is the first bandwidth. This approach is beneficial for the terminal device to operate under the first bandwidth with less interference, thereby improving the terminal device's performance. In another implementation, if the interference value experienced by the terminal device when accessing the aggregated bandwidth is less than or equal to the preset interference value, the bandwidth configuration information can be used to indicate that the terminal device's operating bandwidth is the aggregated bandwidth. This approach, operating under the aggregated bandwidth under conditions of less interference, is beneficial for obtaining high-bandwidth services. The preset interference value can be indicated by the network device or determined by a protocol. The preset interference value can be an empirical value, and this application embodiment does not limit it.

[0098] Taking the second bandwidth configuration information indicating the first bandwidth as an example, when a terminal device receives the second bandwidth configuration information, if its operating bandwidth is the aggregated bandwidth, then the terminal device can switch from the aggregated bandwidth to the first bandwidth. If the terminal device's operating bandwidth is the first bandwidth, then the terminal device can remain operating under the first bandwidth. (This is repeated twice in the original text.)

[0099] In this embodiment, the interference experienced by the terminal device when accessing the aggregated bandwidth is determined by using first channel quality information and second channel quality information, thus quantifying the interference. This allows for adaptive adjustment of the terminal device's operation within a larger or smaller bandwidth based on the interference, ensuring the device operates within a bandwidth with less interference and avoiding operation under bandwidth with strong interference, thereby improving terminal device performance. Furthermore, this approach helps address the problem of terminal device congestion caused by interference from different operators, thus facilitating the application feasibility of discrete spectrum aggregation for virtual large bandwidth and providing implementation feasibility for operator co-construction and sharing. Ultimately, this improves resource utilization and enhances user experience.

[0100] Please see Figure 3 , Figure 3 This is a flowchart illustrating another interference determination method provided in an embodiment of this application. The method describes how a network device configures CSI-RS configuration information for a terminal device, and how the terminal device sends second channel quality information corresponding to the aggregated bandwidth to the network device based on the CSI-RS configuration information. The method may include, but is not limited to, the following steps:

[0101] Step S301: When the terminal device accesses the first bandwidth, it sends the first channel quality information corresponding to the first bandwidth to the network device. Correspondingly, the network device receives the first channel quality information from the terminal device, which was sent by the terminal device when it accesses the first bandwidth.

[0102] It should be noted that the execution process of step S301 can be found in [reference needed]. Figure 2 The specific description of step S201 will not be repeated here.

[0103] Step S302: The network device sends CSI-RS configuration information to the terminal device. The CSI-RS configuration information includes the CSI-RS configuration information corresponding to the first bandwidth and the CSI-RS configuration information corresponding to the second bandwidth. Correspondingly, the terminal device receives the CSI-RS configuration information from the network device.

[0104] The CSI-RS configuration information can be used by the terminal device to measure the second channel quality information corresponding to the aggregated bandwidth. The CSI-RS configuration information may include, but is not limited to, one or more of the following: the time-frequency location of the CSI-RS, and the period information of the periodic CSI-RS. Correspondingly, the configuration information of the CSI-RS corresponding to the first bandwidth (such as the first CSI-RS) may include, but is not limited to, one or more of the following: the time-frequency location of the first CSI-RS, and the period information of the first CSI-RS (if the first CSI-RS is a periodic CSI-RS). The configuration information of the CSI-RS corresponding to the second bandwidth (such as the second CSI-RS) may include, but is not limited to, one or more of the following: the time-frequency location of the second CSI-RS, and the period information of the second CSI-RS (if the second CSI-RS is a periodic CSI-RS).

[0105] In one implementation, the network device can configure the CSI-RS configuration information through the capability information of the terminal device. The terminal device can send capability information to the network device, which can indicate at least one of the following: whether the terminal device supports periodic CSI-RS, whether the terminal device supports aperiodic CSI-RS, whether the terminal device supports m sets of periodic CSI-RS, and whether the terminal device supports n sets of aperiodic CSI-RS. Here, m and n are both integers.

[0106] Optionally, the number of small bandwidths included in the aggregated bandwidth is represented by z (z >= 2). If m >= z, the network device may configure z sets of periodic CSI-RS for the terminal device. At this time, the CSI-RS configuration information may include the configuration information of z sets of periodic CSI-RS. If n >= z, the network device may configure z sets of aperiodic CSI-RS for the terminal device. At this time, the CSI-RS configuration information may include the configuration information of z sets of aperiodic CSI-RS. If m < z, the network device may configure m sets of periodic CSI-RS for the terminal device and configure (z - m) sets of aperiodic CSI-RS for the terminal device. At this time, the CSI-RS configuration information may include the configuration information of m sets of periodic CSI-RS and the configuration information of (z - m) sets of aperiodic CSI-RS. If n < z, the network device may configure n sets of aperiodic CSI-RS for the terminal device and configure (z - n) sets of periodic CSI-RS for the terminal device. At this time, the CSI-RS configuration information may include the configuration information of n sets of aperiodic CSI-RS and the configuration information of (z - n) sets of periodic CSI-RS. If m < z, the network device may configure 1 set of periodic CSI-RS for a part of the small bandwidths included in the aggregated bandwidth (such as 1 small bandwidth: the first bandwidth). At this time, the CSI-RS configuration information may include the configuration information of 1 set of periodic CSI-RS. It should be noted that the part of the small bandwidths may also be z1 small bandwidths, where 1 < z1 < z. Correspondingly, at this time, the CSI-RS configuration information may include the configuration information of z1 sets of periodic CSI-RS, and one small bandwidth corresponds to the configuration information of one set of periodic CSI-RS. If n < z, the network device may configure 1 set of aperiodic CSI-RS for a part of the small bandwidths included in the aggregated bandwidth (such as 1 small bandwidth: the second bandwidth). At this time, the CSI-RS configuration information may include the configuration information of 1 set of aperiodic CSI-RS. It should be noted that the part of the small bandwidths may also be z2 small bandwidths, where 1 < z2 < z. Correspondingly, at this time, the CSI-RS configuration information may include the configuration information of z2 sets of aperiodic CSI-RS, and one small bandwidth corresponds to the configuration information of one set of aperiodic CSI-RS.

[0107] In one implementation, when the number of CSI-RS configured by the network device for the terminal device is less than the number of small bandwidths included in the aggregated bandwidth (i.e., the CSI-RS configuration information only includes CSI-RS configuration information for a portion of the small bandwidths included in the aggregated bandwidth), the channel quality information corresponding to the other portion of the small bandwidths included in the aggregated bandwidth can be the channel quality information corresponding to the small bandwidths with CSI-RS configuration information, i.e., existing CSI measurement results are reused. For example, if the aggregated bandwidth is obtained by aggregating small bandwidths a, b, and c, the CSI-RS configuration information sent by the network device to the terminal device includes the CSI-RS configuration information corresponding to small bandwidth a and small bandwidth b, but does not include the CSI-RS configuration information corresponding to small bandwidth c. Then, the terminal device can measure the channel quality information corresponding to small bandwidth b based on the CSI-RS configuration information corresponding to small bandwidth b, and reuse the channel quality information corresponding to small bandwidth b as the channel quality information corresponding to small bandwidth c. In other words, for a small bandwidth (e.g., referred to as small bandwidth 1) that does not have CSI-RS configuration information, the CSI measurement result of the spectrum closest to the spectrum of small bandwidth 1 in the aggregated bandwidth (this spectrum is the spectrum of a small bandwidth in the aggregated bandwidth) can be used as the CSI measurement result of small bandwidth 1.

[0108] Step S303: When the terminal device accesses the aggregated bandwidth, it sends the second channel quality information corresponding to the aggregated bandwidth to the network device according to the CSI-RS configuration information; wherein the aggregated bandwidth is obtained by aggregating at least the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of the third bandwidth. Correspondingly, the network device receives the second channel quality information from the terminal device, which is sent by the terminal device when accessing the aggregated bandwidth.

[0109] After receiving CSI-RS configuration information from the network device, the terminal device can measure the second channel quality information based on the CSI-RS configuration information and send the second channel quality information to the network device. Specifically, the terminal device can measure the channel quality information corresponding to the first bandwidth based on the CSI-RS configuration information corresponding to the first bandwidth; and measure the channel quality information corresponding to the second bandwidth based on the CSI-RS configuration information corresponding to the second bandwidth. That is, the second channel quality information corresponding to the aggregated bandwidth can include the channel quality information corresponding to the first bandwidth and the channel quality information corresponding to the second bandwidth measured when the terminal device accesses the aggregated bandwidth.

[0110] It should be noted that the remaining execution process of step S303 can be found in [reference needed]. Figure 2 The specific description of step S202 will not be repeated here.

[0111] Step S304: The network device determines the interference experienced by the terminal device when accessing the aggregated bandwidth based on the first channel quality information and the second channel quality information.

[0112] Step S305: The network device sends bandwidth configuration information to the terminal device based on the interference. Correspondingly, the terminal device receives the bandwidth configuration information from the network device.

[0113] It should be noted that the execution process of steps S304 to S305 can be found in [reference needed]. Figure 2 The specific descriptions of steps S203 to S204 are not repeated here.

[0114] In this embodiment, the interference experienced by the terminal device when accessing the aggregated bandwidth is determined by using first channel quality information and second channel quality information, thus quantifying the interference. This allows for adaptive adjustment of the terminal device's operation within a larger or smaller bandwidth based on the interference, ensuring the device operates within a bandwidth with less interference and avoiding operation under bandwidth with strong interference, thereby improving terminal device performance. Furthermore, this approach helps address the problem of terminal device congestion caused by interference from different operators, thus facilitating the application feasibility of discrete spectrum aggregation for virtual large bandwidth and providing implementation feasibility for operator co-construction and sharing. Ultimately, this improves resource utilization and enhances user experience.

[0115] In one implementation, the terminal device can support a multi-slice filtering mechanism under aggregated bandwidth. This mechanism can filter out interference encountered by the terminal device when accessing the aggregated bandwidth. Supporting the multi-slice filtering mechanism under aggregated bandwidth means that the terminal device can identify the individual sub-bandwidths included in the aggregated bandwidth and perform adaptive filtering on each sub-bandwidth. Adaptive filtering on each sub-bandwidth means that the filter width can be automatically adjusted for each sub-bandwidth to filter out interference outside the carrier width. For example, the aggregated bandwidth is obtained by aggregating a first bandwidth and a second bandwidth, where the carrier width of the first bandwidth is 5MHz and the carrier width of the second bandwidth is 10MHz. Then, the terminal device can identify the information carried on the carrier of the first bandwidth, and for this information, it can automatically adjust the filter width to 5MHz to filter out interference from other carriers. Similarly, the terminal device can identify the information carried on the carrier of the second bandwidth, and for this information, it can automatically adjust the filter width to 10MHz to filter out interference from other carriers. In this way, the interference problem under aggregated bandwidth can be fundamentally solved.

[0116] Corresponding to the methods described in the above embodiments, this application also provides corresponding apparatus, including modules or units for executing the corresponding methods described in the above embodiments. The modules or units may be software, hardware, or a combination of software and hardware.

[0117] Please see Figure 4 This is a schematic diagram of the structure of a communication device provided in this application. Figure 4 The communication device 400 shown includes a communication unit 401 and a processing unit 402.

[0118] In one design, the communication device 400 is a network device:

[0119] For example, communication unit 401 is configured to receive first channel quality information corresponding to a first bandwidth from a terminal device, the first channel quality information being sent by the terminal device when accessing the first bandwidth; communication unit 401 is also configured to receive second channel quality information corresponding to aggregated bandwidth from the terminal device, the second channel quality information being sent by the terminal device when accessing the aggregated bandwidth; wherein, the aggregated bandwidth is at least obtained by aggregating the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of a third bandwidth; processing unit 402 is configured to determine the interference experienced by the terminal device when accessing the aggregated bandwidth based on the first channel quality information and the second channel quality information; communication unit 401 is also configured to send bandwidth configuration information to the terminal device based on the interference.

[0120] In one implementation, if the interference value is greater than a preset interference value, the bandwidth configuration information is used to indicate that the operating bandwidth of the terminal device is the first bandwidth.

[0121] In one implementation, if the interference value is less than or equal to a preset interference value, the bandwidth configuration information is used to indicate that the working bandwidth of the terminal device is the aggregate bandwidth.

[0122] In one implementation, the processing unit 402 is used to determine the interference received by the terminal device when accessing the aggregated bandwidth based on the first channel quality information and the second channel quality information. Specifically, it is used to determine the ratio between the evaluation value of the second channel quality information and the evaluation value of the first channel quality information as the interference value received by the terminal device when accessing the aggregated bandwidth.

[0123] In one implementation, the first bandwidth and the second bandwidth both correspond to the first operator, and the third bandwidth corresponds to the second operator.

[0124] In one implementation, the communication unit 401 is further configured to receive capability information of the terminal device from the terminal device, the capability information being used to indicate that the terminal device supports access aggregated bandwidth; the processing unit 402 is further configured to determine, based on the capability information, that the terminal device supports access aggregated bandwidth.

[0125] In one implementation, the communication unit 401 is further configured to transmit a channel state information reference signal (CSI-RS) for the cell corresponding to the first bandwidth, wherein the first channel quality information is determined by the terminal device based on the CSI-RS when accessing the cell.

[0126] In one implementation, the communication unit 401 is further configured to send CSI-RS configuration information to the terminal device. The CSI-RS configuration information includes configuration information of CSI-RS corresponding to the first bandwidth and configuration information of CSI-RS corresponding to the second bandwidth.

[0127] In one implementation, the channel quality information includes one or more of the Received Signal Strength Indication (RSSI) or Channel Quality Indication (CQI).

[0128] When the communication device 400 is a network device, it is used to implement Figures 2-3 The functions of the network device in the corresponding embodiment.

[0129] In one design, the communication device 400 is a terminal device:

[0130] For example, processing unit 402 is configured to, when accessing a first bandwidth, invoke communication unit 401 to send first channel quality information corresponding to the first bandwidth to the network device; processing unit 402 is further configured to, when accessing aggregated bandwidth, invoke communication unit 401 to send second channel quality information corresponding to the aggregated bandwidth to the network device; wherein, the aggregated bandwidth is at least obtained by aggregating the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of a third bandwidth; processing unit 402 is further configured to, invoke communication unit 401 to receive bandwidth configuration information from the network device, the bandwidth configuration information being sent by the network device based on the interference experienced by communication device 400 when accessing the aggregated bandwidth; the interference is determined based on the first channel quality information and the second channel quality information.

[0131] In one implementation, if the interference value is greater than a preset interference value, the bandwidth configuration information is used to indicate that the operating bandwidth of the communication device 400 is a first bandwidth.

[0132] In one implementation, if the interference value is less than or equal to a preset interference value, the bandwidth configuration information is used to indicate that the operating bandwidth of the communication device 400 is the aggregate bandwidth.

[0133] In one implementation, the interference value is the ratio between the evaluation value of the second channel quality information and the evaluation value of the first channel quality information.

[0134] In one implementation, the first bandwidth and the second bandwidth both correspond to the first operator, and the third bandwidth corresponds to the second operator.

[0135] In one implementation, the processing unit 402 is further configured to call the communication unit 401 to send capability information of the communication device 400 to the network device, the capability information being used to indicate that the communication device 400 supports access aggregation bandwidth.

[0136] In one implementation, the processing unit 402 is further configured to call the communication unit 401 to receive the channel state information reference signal (CSI-RS) of the cell corresponding to the first bandwidth of the network device; and determine the first channel quality information based on the CSI-RS.

[0137] In one implementation, the processing unit 402 is further configured to call the communication unit 401 to receive CSI-RS configuration information from the network device. The CSI-RS configuration information includes configuration information of CSI-RS corresponding to a first bandwidth and configuration information of CSI-RS corresponding to a second bandwidth.

[0138] In one implementation, the channel quality information includes one or more of the Received Signal Strength Indication (RSSI) or Channel Quality Indication (CQI).

[0139] When the communication device 400 is a terminal device, it is used to realize Figures 2-3 The terminal device functions in the illustrated embodiment.

[0140] Please see Figure 5 This is a schematic diagram of another communication device provided in this application. Figure 5 The communication device 500 shown includes at least one processor 501 and a transceiver 502. Optionally, it may also include a memory 503.

[0141] Memory 503 may be volatile memory, such as random access memory; it may also be non-volatile memory, such as read-only memory, flash memory, hard disk drive (HDD), or solid-state drive (SSD); or memory 503 may be any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto. Memory 503 may be a combination of the above-described memories.

[0142] This application embodiment does not limit the specific connection medium between the processor 501, transceiver 502, and memory 503. In this application embodiment, the processor 501, transceiver 502, and memory 503 are connected via a bus 504, which is represented by a thick line in the figure. The connection methods between other components are only illustrative and not intended to be limiting. This bus 504 can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, Figure 5 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0143] Processor 501 can have data transmission and reception capabilities, enabling it to communicate with other devices, such as... Figure 5 The device can also be equipped with a separate data communication unit, such as transceiver 502, for sending and receiving data; when the processor 501 communicates with other devices, it can transmit data through transceiver 502.

[0144] In one example, when the network device adopts Figure 5 When in the form shown, Figure 5 The processor in the network can execute the method executed by the network device in any of the above method embodiments.

[0145] In one example, when the terminal device uses Figure 5 When in the form shown, Figure 5 The processor in the process can execute the method executed by the terminal device in any of the above method embodiments.

[0146] Specifically, Figure 4 The functions / implementation processes of the processing unit and communication unit can be accessed through... Figure 5 The processor 501 in the memory calls computer execution instructions stored in memory 503 to implement the function. Alternatively, Figure 4 The function / implementation process of the processing unit can be achieved through Figure 5 The processor 501 in the memory calls computer execution instructions stored in the memory 503 to implement this. Figure 4 The function / implementation process of the communication unit can be achieved through Figure 5 This is achieved using transceiver 502.

[0147] In one implementation, the communication device 500 may include a circuit that can perform the functions of sending, receiving, or communicating in the aforementioned method embodiments. The processor described in this application can be implemented as an integrated circuit (IC), analog IC, radio frequency integrated circuit (RFIC), mixed-signal IC, application-specific integrated circuit (ASIC), printed circuit board (PCB), electronic device, etc. The processor can also be manufactured using IC process technologies such as complementary metal oxide semiconductor (CMOS), n-metal-oxide-semiconductor (NMOS), positive channel metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0148] The communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may vary. Figure 5 The communication device may be a standalone device or part of a larger device. For example, the communication device may be:

[0149] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0150] (2) A collection of one or more ICs, optionally including storage components for storing data and computer programs;

[0151] (3) ASIC, such as modem;

[0152] (4) Modules that can be embedded in other devices;

[0153] (5) Receivers, terminals, smart terminals, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.

[0154] (6) Others, etc.

[0155] For cases where the communication device can be a chip or a chip system, please refer to [link / reference]. Figure 6 The diagram shows the structure of the chip. Figure 6 The chip 600 shown includes a processor 601 and an interface 602. There can be one or more processors 601, and multiple interfaces 602.

[0156] Regarding the case where chip 600 is used to implement the functions of the network device in the embodiments of this application:

[0157] Interface 602 is used to receive first channel quality information corresponding to the first bandwidth from the terminal device. The first channel quality information is sent by the terminal device when it accesses the first bandwidth.

[0158] Interface 602 is also used to receive second channel quality information corresponding to the aggregated bandwidth from the terminal device. The second channel quality information is sent by the terminal device when it accesses the aggregated bandwidth. The aggregated bandwidth is obtained by aggregating at least the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of the third bandwidth.

[0159] Processor 601 is used to determine the interference experienced by the terminal device when accessing the aggregated bandwidth based on the first channel quality information and the second channel quality information;

[0160] Interface 602 is also used to send bandwidth configuration information to the terminal device based on the interference.

[0161] Specifically, in this case, the operations performed by processor 601 and interface 602 can be referred to the above. Figures 2-3 The corresponding embodiments include a description of the network devices.

[0162] Regarding the case where chip 600 is used to implement the functions of the terminal device in the embodiments of this application:

[0163] Processor 601 is used to call interface 602 to send the first channel quality information corresponding to the first bandwidth to the network device when the first bandwidth is accessed;

[0164] The processor 601 is also used to call interface 602 to send the second channel quality information corresponding to the aggregated bandwidth to the network device when the aggregated bandwidth is accessed; wherein the aggregated bandwidth is obtained by aggregating at least the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of the third bandwidth.

[0165] The processor 601 is also configured to call interface 602 to receive bandwidth configuration information from the network device. The bandwidth configuration information is sent by the network device based on the interference experienced by the terminal device when accessing the aggregated bandwidth. The interference is determined based on the first channel quality information and the second channel quality information.

[0166] Specifically, in this case, the operations performed by processor 601 and interface 602 can be referred to the above. Figures 2-3 The corresponding embodiments include a description of the terminal devices.

[0167] Optionally, the chip also includes a memory 603 for storing necessary computer programs and data. The memory 603 can be provided separately or integrated with the processor 601, such as... Figure 6 As shown in the dashed box 603.

[0168] This application also provides a communication system, which may include... Figures 2-3 The network device and terminal device in the corresponding embodiment.

[0169] It is understood that some optional features in the embodiments of this application can be implemented independently in certain scenarios without relying on other features, such as the current solution on which they are based, to solve the corresponding technical problems and achieve the corresponding effects. Alternatively, they can be combined with other features as needed in certain scenarios. Correspondingly, the apparatus given in the embodiments of this application can also implement these features or functions, which will not be elaborated here.

[0170] Those skilled in the art will also understand that the various illustrative logical blocks and steps listed in the embodiments of this application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented through hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can use various methods to implement the described functionality for corresponding applications, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this application.

[0171] The solutions described in this application can be implemented in various ways. For example, these technologies can be implemented in hardware, software, or a combination of hardware. For hardware implementation, the processing unit for executing these technologies at a communication device (e.g., a base station, terminal, network entity, core network element, or chip) can be implemented in one or more general-purpose processors, digital signal processors (DSPs), digital signal processing devices, application-specific integrated circuits (ASICs), programmable logic devices, field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination thereof. The general-purpose processor can be a microprocessor; alternatively, it can also be any conventional processor, controller, microcontroller, or state machine. The processor can also be implemented through a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration.

[0172] This application also provides a computer-readable medium having a computer program stored thereon, which, when executed by a computer, implements the functions of any of the above method embodiments.

[0173] This application also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0174] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state drives (SSDs)).

[0175] It is understood that the term "embodiment" used throughout the specification means that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, various embodiments throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It is understood that in the various embodiments of this application, the sequence number of the above-described processes does not imply the order of execution; the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0176] It is understood that in this application, "when," "if," and "if" all refer to the device making a corresponding action under certain objective circumstances, and are not time-limited, nor do they require the device to make a judgment when it is implemented, nor do they imply any other limitations.

[0177] In this application, the use of singular pronouns to denote "one or more" rather than "one and only one," unless otherwise specified. In this application, unless otherwise specified, "at least one" is intended to mean "one or more," and "more than" is intended to mean "two or more."

[0178] Furthermore, the terms "system" and "network" are often used interchangeably in this paper. The term "and / or" in this paper is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone. Here, A can be singular or plural, and B can be singular or plural.

[0179] The term "predefined" in this application can be understood as definition, pre-defined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0180] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0181] The same or similar parts between the various embodiments in this application can be referred to mutually. In the various embodiments of this application, and in the various implementation methods / methods / implementations within each embodiment, unless otherwise specified or logically conflicting, the terminology and / or descriptions between different embodiments and between the various implementation methods / methods / implementations within each embodiment are consistent and can be mutually referenced. The technical features in different embodiments and the various implementation methods / methods / implementations within each embodiment can be combined according to their inherent logical relationships to form new embodiments, implementation methods, methods, or implementation approaches. The above-described embodiments of this application do not constitute a limitation on the scope of protection of this application.

[0182] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A method for determining interference, characterized in that, The method includes: The network device receives first channel quality information corresponding to a first bandwidth from the terminal device, wherein the first channel quality information is sent by the terminal device when it accesses the first bandwidth; The network device receives second channel quality information corresponding to the aggregated bandwidth from the terminal device. The second channel quality information is sent by the terminal device when it accesses the aggregated bandwidth. The aggregated bandwidth is obtained by aggregating at least the first bandwidth and the second bandwidth. The spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of the third bandwidth. The first bandwidth and the second bandwidth both correspond to the first operator, and the third bandwidth corresponds to the second operator. The network device determines the ratio between the evaluation value of the second channel quality information and the evaluation value of the first channel quality information as the interference value of the terminal device when accessing the aggregated bandwidth; the network device sends bandwidth configuration information to the terminal device based on the interference.

2. The method as described in claim 1, characterized in that, If the interference value is greater than the preset interference value, the bandwidth configuration information is used to indicate that the operating bandwidth of the terminal device is the first bandwidth.

3. The method as described in claim 2, characterized in that, If the interference value is less than or equal to the preset interference value, the bandwidth configuration information is used to indicate that the working bandwidth of the terminal device is the aggregate bandwidth.

4. The method according to any one of claims 1 to 3, characterized in that, The method further includes: The network device receives capability information from the terminal device, the capability information being used to indicate that the terminal device supports access to the aggregated bandwidth; Based on the capability information, the network device determines that the terminal device supports access to the aggregated bandwidth.

5. The method according to any one of claims 1 to 3, characterized in that, The method further includes: The network device sends a Channel State Information Reference Signal (CSI-RS) for the cell corresponding to the first bandwidth. The first channel quality information is determined by the terminal device based on the CSI-RS when accessing the cell.

6. The method according to any one of claims 1 to 3, characterized in that, The method further includes: The network device sends CSI-RS configuration information to the terminal device. The CSI-RS configuration information includes the CSI-RS configuration information corresponding to the first bandwidth and the CSI-RS configuration information corresponding to the second bandwidth.

7. The method according to any one of claims 1 to 3, characterized in that, Channel quality information includes one or more of the Received Signal Strength Indicator (RSSI) or Channel Quality Indicator (CQI).

8. A method for determining interference, characterized in that, The method includes: When the terminal device accesses the first bandwidth, it sends the first channel quality information corresponding to the first bandwidth to the network device; When the terminal device accesses the aggregated bandwidth, it sends the second channel quality information corresponding to the aggregated bandwidth to the network device; wherein, the aggregated bandwidth is obtained by aggregating at least the first bandwidth and the second bandwidth, and the spectrum of the first bandwidth and the spectrum of the second bandwidth are separated by the spectrum of the third bandwidth; the first bandwidth and the second bandwidth both correspond to the first operator, and the third bandwidth corresponds to the second operator; The terminal device receives bandwidth configuration information from the network device. The bandwidth configuration information is sent by the network device based on the interference experienced by the terminal device when accessing the aggregated bandwidth. The interference value is the ratio between the evaluation value of the second channel quality information and the evaluation value of the first channel quality information.

9. The method as described in claim 8, characterized in that, If the interference value is greater than the preset interference value, the bandwidth configuration information is used to indicate that the operating bandwidth of the terminal device is the first bandwidth.

10. The method as described in claim 9, characterized in that, If the interference value is less than or equal to the preset interference value, the bandwidth configuration information is used to indicate that the working bandwidth of the terminal device is the aggregate bandwidth.

11. The method according to any one of claims 8 to 10, characterized in that, The method further includes: The terminal device sends its capability information to the network device, the capability information being used to indicate that the terminal device supports access to the aggregated bandwidth.

12. The method according to any one of claims 8 to 10, characterized in that, The method further includes: The terminal device receives a Channel State Information Reference Signal (CSI-RS) from the cell corresponding to the first bandwidth of the network device; The terminal device determines the first channel quality information based on the CSI-RS.

13. The method according to any one of claims 8 to 10, characterized in that, The method further includes: The terminal device receives CSI-RS configuration information from the network device. The CSI-RS configuration information includes the configuration information of the CSI-RS corresponding to the first bandwidth and the configuration information of the CSI-RS corresponding to the second bandwidth.

14. The method according to any one of claims 8 to 10, characterized in that, Channel quality information includes one or more of the Received Signal Strength Indicator (RSSI) or Channel Quality Indicator (CQI).

15. A communication device, characterized in that, Includes units for performing the method as described in any one of claims 1 to 7 or 8 to 14.

16. A communication device, characterized in that, The device includes a processor that performs the method as described in any one of claims 1 to 7 or 8 to 14.

17. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, the computer program including program instructions, which, when executed by a communication device, cause the method as described in any one of claims 1 to 7 or 8 to 14 to be performed.

18. A computer program product, characterized in that, The computer program product includes a computer program or instructions that, when run on a computer, cause the computer to perform the method as described in any one of claims 1 to 7 or 8 to 14.

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